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107results about How to "Improve the cooling factor" patented technology
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Refrigeration device
InactiveCN1847750AReduce compression powerReduce in quantityCompression machines with non-reversible cycleDomestic refrigeratorsIntermediate heat exchangerCompression device
The refrigerating device of the invention is used to improve the refrigerating capacity of the evaporator in the refrigerating device and improve the performance. The refrigerant flowing out of the heat radiator (105) is divided into two streams, and the first refrigerant stream flows into the first flow path of the intermediate heat exchanger (107) through the auxiliary expansion valve (109), and the second refrigerant stream After flowing through the second flow path of the intermediate heat exchanger, it flows into the evaporator (108) through the main expansion valve (106) as the main throttling device, and in the intermediate heat exchanger, the first refrigerant flow and the second refrigerant flow The refrigerant flow performs heat exchange, the refrigerant flowing out of the evaporator is sucked into the compression element on the low stage side (low pressure part of the compression device), and the above-mentioned first refrigerant flow flowing out from the intermediate heat exchanger is sucked into the compression element on the high stage side ( the middle pressure part of the compression device). The pressure of the intermediate pressure portion of the compression device is determined by controlling the auxiliary expansion valve as the auxiliary throttling device based on the suction pressure and discharge pressure of the compression device.
Owner:THERMAL ANALYSIS PARTNERS +1
Device and method for combined ejection refrigeration and vapor compression refrigeration cycle
InactiveCN101825372AImprove the cooling factorImprove energy savingRefrigeration machinesEngineeringRefrigeration
The invention relates to a device and a method for the combined ejection refrigeration and vapor compression refrigeration cycle, aiming at improving the running efficiency of the refrigeration system and solving the problems that the unit power and the unit condensation rate of the compressor increase and the air transmission rate and the refrigeration coefficient decrease due to the regenerative cycle adopted in the vapor compression refrigeration cycle to make the refrigerant have a certain supercooling degree. On the vapor compression refrigeration cycle side, the air exhaust opening of a compressor (2) is connected with the refrigerant inlet of a generator (5), the refrigerant inlet of the generator (5) is connected with the inlet of a first condenser (3), the outlet of the first condenser (3) is connected with the refrigerant inlet of a supercooler (6), the refrigerant outlet of the supercooler (6) is connected with the refrigerant inlet of an evaporator (1) through a throttle valve (4), and the outlet of the evaporator (1) is communicated with the air suction opening of the compressor (2). The ejection refrigeration cycle and the vapor compression refrigeration cycle are combined in the device, and two refrigeration systems are connected through one generator and one supercooler.
Owner:SOUTHEAST UNIV
Injection type refrigerating machine with middle heat exchanging part
ActiveCN103528263AReduce loadImprove the cooling factorMachines using refrigerant evaporationWorking fluidGas phase
The invention discloses an injection type refrigerating machine with a middle heat exchanging part. The injection type refrigerating machine with the middle heat exchanging part comprises a first restricting element, an evaporator, a first ejector, a second ejector, a condenser, a second restricting element, a subcooler or an economizer, a circulating pump and a first generator, wherein a working fluid inlet of the first ejector and a working fluid inlet of the second ejector are communicated with a working medium outlet of the first generator, a driving fluid inlet of the first ejector is communicated with a working medium outlet of the evaporator, a working medium outlet of the first ejector is communicated with a driving fluid inlet of the second ejector, and a working medium outlet of the second ejector is communicated with a working medium inlet of the condenser. The injection type refrigerating machine with the middle heat exchanging part has the advantages that constraint of traditional thought is broken through; due to the fact that the middle heat exchanging part such as the economizer or the subcooler is adopted, gas phase working media of the economizer or the subcooler can directly enter the second ejector and do not need to be compressed again through the first ejector, then the load of the first ejector is reduced, and the refrigeration coefficient of a system is improved.
Owner:NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
Solar energy photovoltaic direct current air water fetching device
InactiveCN101144284AGuaranteed uptimeImprove the cooling factorBatteries circuit arrangementsElectric powerSolar powerSolar battery
The present invention relates to a solar photovoltaic direct current air water intake device. The present invention comprises a solar power supply system, a box body assembly and a battery, and the box body assembly comprises a refrigeration system, an air water intake apparatus and a box body, the solar power supply system is respectively connected with the battery and the direct current compressor of a refrigeration system through a controller, the refrigeration system and the air water intake apparatus are arranged in the box body, and a master switch is arranged on the outer wall of the box body. When the solar radiation is sufficient, a solar battery board converts the received sunlight radiant energy into direct current power for outputting, and the direct current compressor drives the refrigeration system to operate, and the redundant power is stored to the battery; when the solar radiation intensity is not strong or in the rainy weather, the direct current power converted by the solar battery board is less than the consumption of the system, and the power in the battery is released for maintaining the normal system operation. The present invention applies the photovoltaic direct current compression refrigeration technology to the air water intake system, thereby, the refrigeration coefficient is high, the water intake rate is high, the continuous operation time is long without sunshine, and the present invention can be applied in the areas lacking of water and electricity but sufficient in sunshine.
Owner:SHANGHAI JIAO TONG UNIV
Temperature and humidity independent control air conditioning unit based on absorption refrigeration
InactiveCN104132413AImprove the cooling factorAchieve concentrated regenerationLighting and heating apparatusAir conditioning systemsIndoor airProcess engineering
The invention provides a temperature and humidity independent control air conditioning unit based on absorption refrigeration. According to the unit, heat can be effectively dissipated by means of an absorption refrigerator absorber and a condenser, and concentration and regeneration of dilute solutions obtained by dehumidifying solutions are achieved. On the basis that cooling water and cooling air are provided through absorption refrigeration, temperature and humidity independent control of indoor air supply can be effectively achieved, and meanwhile refrigerating performance of an absorption refrigerator and quality of supplied air can be greatly improved compared with traditional cooling and dehumidification.
Owner:BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
High-efficiency ammonia-water absorption-type refrigeration device
InactiveCN101776346AIncrease absorption pressureImprove the cooling factorEnergy efficient heating/coolingClimate change adaptationWorking fluidEngineering
The invention discloses a high-efficiency ammonia-water absorption-type refrigeration device, which adopts an ejector to substitute the original dilute solution throttling device, adopts dilute solution from a solution heat exchanger as the work fluid of the ejector and adopts ammonia steam from an evaporator as the driving fluid; and the dilute solution and the ammonia steam are injected into an absorber after being mixed and pressurized inside the ejector. The ejector recycles the energy discharged during the depressurization process of the dilute solution to be used for improving the absorption pressure of the absorber, so under the condition that the cooling water temperature and the heat source temperature are equal to that of the conventional ammonia-water absorption refrigeration system, the refrigeration coefficient of the system is improved; and moreover, since the ammonia steam and the ammonia-water dilute solution are adequately mixed inside the ejector, the absorber is simplified to a simple cooler.
Owner:SHANGHAI MARITIME UNIVERSITY
Air-conditioning device capable of realizing gradient utilization for waste heat of ship, and working method
ActiveCN107289670AImprove waste heat utilization efficiencyAchieving Cascade RecyclingMechanical apparatusAuxillariesSeawaterCogeneration
Owner:JIANGSU UNIV OF SCI & TECH
Dual-circulation fresh air dehumidifying and coil cooling type air conditioning unit
InactiveCN102635904AImprove the cooling factorAvoid it happening againEfficient regulation technologiesSpace heating and ventilation detailsDual stageFresh air
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Vacuum solar steam heat collection tube, steam heat collection plate and solar hot water air conditioner device
InactiveCN101354196AMaximum constant temperatureHigh constant temperatureSolar heating energySolar heat devicesHeat transmissionEngineering
The invention discloses an evacuated solar energy steam heat collecting pipe, a steam heat collecting board and a steam hot water air conditioner which are composed of the evacuated solar energy steam heat collecting pipe. An open end of the evacuated solar energy steam heat collecting pipe provided with a double-layer jacket is provided with a sealing end cover, and on the sealing end cover a steam discharging port and an liquid intake pipe are provided; an inner cavity of an inner tube is provided with a core tube; a stenochasmus medium liquid membrane layer is formed between the core tube and the inner tube; the liquid intake pipe is serially connected to an adjuster for regulating the status of liquid feed. A plurality of the steam heat collecting pipes are arranged side by side on a framework provided with a reflecting board lined at the back and a transmitting board arranged in the front; the steam discharging ports are gathered to an exhaust manifold while the liquid intake pipes to a return liquid manifold; the exhaust manifold and the return liquid manifold are positioned for heat preservation in the framework with interfaces thereof exposed to form a heat collecting board generating steam. The exhaust manifold and the return liquid manifold of the steam heat collecting board are respectively connected with a water tank to form a steam-heating water heater / or connected with a condensation heat exchanger in a heat receiver to form the water heater or the heater of superconductive heat transmission through a steam transport pipe and a return liquid pipe. An absorption air conditioner is serially connected between the steam transport pipe and the return liquid pipe to form a steam-source solar energy air conditioner.
Owner:喜春野
Refrigeration cycle device
InactiveCN106662366ARelieve pressureImprove efficiencyAir-treating devicesCompression machines with non-reversible cycleHeat carrierEngineering
This refrigeration cycle device comprises: a low temperature side pump (11) which takes in and discharges a low temperature side heat carrier; a compressor (21) which takes in, compresses, and discharges a refrigerant; a heat dissipating unit (15) which dissipates heat from high-pressure refrigerant discharged from the compressor (21); a pressure reducing device (23c) which reduces the pressure of the high-pressure refrigerant for which the heat has been dissipated by the heat dissipating unit (15); an internal heat exchanger (24) which exchanges heat between the high-pressure refrigerant flowing from the heat dissipating unit (15) and low-pressure refrigerant discharged from a heat carrier cooling unit (14); a low-pressure refrigerant temperature sensing unit (23a) which detects or senses the temperature associated with the temperature of the low-pressure refrigerant that exchanged heat in the internal heat exchanger (24); and an overheating control unit (23b) which controls the degree of overheating of the low-pressure refrigerant that exchanged heat in the internal heat exchanger (24) on the basis of the temperature detected or sensed by the low-pressure refrigerant temperature sensing unit (23a).
Owner:DENSO CORP
Dual-locomotive and dual-stage screw refrigerating compressor set
ActiveCN100447501CLow powerRun energy savingCompression machines with non-reversible cycleCompression machines with cascade operationRefrigeration compressorDual stage
This kind of double-machine, double-screw cold compressor system mainly consists of evaporator, compressor in low-pressure zone, compressor in high-pressure zone, recycle unit to separate oil, condenser, condenser in the middle part, low-pressure economizer system. There is no inspiration passage between evaporator and compressor in high-pressure zone. The vent on compressor in low-pressure zone connects directly with the air entry on compressor in high-pressure. Compressors low-pressure zone and high-pressure zone share one recycle unit of oil separation. Condenser, condenser in the high-pressure zone, economizer system in low-pressure zone and evaporator are linked up in that order so that part of the refrigerating medium can absorb enough heat to boil and evaporate, provide vapor at a temperature near saturation to the compressor in the high-pressure zone and supply vapor to the compressor in the low-pressure zone. Meanwhile, the other part of refrigerating medium will be passed to the evaporator after being cooled twice for recycle. It is the best choice among the products of refrigeration and deepfreeze in low temperature because of its tidy and compact structure, reasonable layout, small size, stable and credible operation, low cost and high cooling performance.
Owner:武汉新世界制冷工业有限公司
Dual-temperature radiation household air-conditioner capable of processing fresh air
InactiveCN103743020AImprove the cooling factorGood comfortSpace heating and ventilation detailsFluid circulation arrangementRefrigerantInjector
A dual-temperature radiation household air-conditioner capable of processing fresh air comprises a compressor, wherein an outlet of the compressor is connected with an inlet of a condenser. The outlet pipelines of the condenser are connected with a mental radiation plate and a guiding-type fresh air processor respectively by a first expansion valve and a second expansion valve through a heat regenerator, wherein both inlets of an ejector are respectively connected with the outlet of the mental radiation plate and the outlet of the guiding-type fresh air processor. The outlet pipelines of the ejector are connected with the inlet of the condenser through the heat regenerator. The dual-temperature radiation household air-conditioner is capable of increasing the inlet pressure of the condenser to enable a single condenser to achieve the cooling at two evaporating temperatures, wherein the evaporating temperature of the mental radiation plate which is used as an evaporator is relatively high, thereby being good for improving refrigeration coefficients to achieve the energy-saving effect, avoiding the problem of the secondary heat loss caused by using cold water as refrigerants of radiation air-conditioners, improving indoor air quality and expanding the range of application of air-conditioner systems with independent control of temperature and humidity.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Vacuum solar steam heat collection tube, steam heat collection plate, solar water-heating air conditioner device
InactiveCN101226004AHigh input temperatureImprove the cooling factorSolar heating energySolar heat devicesEngineeringThermal water
The invention discloses a vacuum solar vapor heat-collecting tube, a vapor heat-collection plate formed by the vacuum solar vapor heat-collecting tube, and a vapor hot water air conditioner, which is characterized in that a sealing end cover is positioned at the open end of a common vacuum solar heat-collecting tube; a plurality of vapor exhaust ports, a plurality of liquid inlet tubes and a standby pipe are positioned on the sealing end cover; a homocentric core tube is positioned in the intracavity of the inner pipe; a liquid membrane gap is formed between the core tube and the inner pipe; the outlet of the liquid inlet tube is introduced into the liquid membrane gap; an adjusting valve, controlled by liquid level in the pipe or the temperature of inner pipe wall, is connected in series with the liquid inlet tube; a plurality of heat-collecting tubes are positioned in parallel in a frame; the back face of the frame is lined with a reflector; a light transmission plate is positioned on the front face of the frame; the vapor exhaust ports converge in a vapor exhaust header; the liquid inlet tube converges in a liquid return header; the vapor exhaust header and the liquid return header are positioned in the frame and simultaneously the heat is preserved; the interfaces of the headers expose to the outside, forming a vapor heat-collection plate; the vapor exhaust header and the liquid return header of the vapor heat-collection plate are connected with a through hole vapor absorber and a water outlet at the bottom part of a water tank by a vapor transportation pipe and a liquid return pipe, forming a water heater; an absorption-type air conditioner is connected in series with the vapor transportation pipe; a steam boiler is connected in parallel between the vapor transportation pipe and the liquid return pipe, forming the hot water air conditioner.
Owner:喜春野
Film distillation backheating absorption type refrigerator
InactiveCN101344342ALow temperature requirementImprove the cooling factorDistillationSorption machinesChemistryEvaporator
The invention discloses a membrane distillation heat recovery absorption type refrigeration device which relates to the refrigeration technology field, the membrane distillation heat recovery absorption type refrigeration device comprises a generator, a condenser, a throttling device, an evaporator, a refrigerant pump, an absorber, a solution pump and a solution heat exchanger; the membrane distillation heat recovery absorption type refrigeration device is characterized in that: a membrane distillation mass transfer heat exchanger is arranged between the generator and the solution heat exchanger, the membrane distillation mass transfer forms a certain steam pressure difference at the hot side and the cold side solutions of a membrane, thereby realizing the heat recovery process. The membrane distillation heat recovery absorption type refrigeration device of the invention has the advantages that: the requirements on the temperature of a drive heat source are greatly reduced; the refrigeration coefficient is greatly improved; the absorption type refrigeration device is simplified, and the manufacturing process is improved.
Owner:SHANGHAI MARITIME UNIVERSITY
Energy and water saving type hot water spraying and defrosting system
InactiveCN108844265AIncrease subcoolingReduce energy consumptionCorrosion preventionRefrigeration componentsWater savingVapor–liquid separator
The invention discloses an energy and water saving type hot water spraying and defrosting system. The system consists of a refrigerating system, a defrosting system and a control system; the refrigerating system comprises a compressor, an oil separator, an air cooling condenser, a drying filter, a thermal expansion valve, a fin tube evaporator and an air-liquid separator; the defrosting system comprises a water storage tank, a water pump and a spraying device; a water outlet of the water storage tank is connected with a water feeding pipeline provided with the water pump and a first electromagnetic valve in sequence; the spraying device is mounted at the tail end of the water feeding pipeline; and a water collecting disc positioned at the bottom in the fine tube evaporator is connected with a sleeve heat exchanger, a one-way valve, a snakelike coil around the outer side of the oil separator and a water storage tank water inlet through pipelines in sequence. The system needs no additional defrosting heat source and defrosting water; and through efficient utilization of condensation heat and afterheat of the oil separator and recycling of the defrosting water, the energy and water saving purpose of the system can be achieved.
Owner:TIANJIN UNIV OF COMMERCE
Non-combustible mixed refrigerant suitable for refrigeration temperature region at temperature of -135 DEG C to -105 DEG C
InactiveCN105885798AUnit work increaseEasy to operateCompression machinesHeat-exchange elementsRefrigeration temperatureEngineering
The invention relates to a mixed refrigerant suitable for a refrigeration temperature region at the temperature of -135 DEG C to -105 DEG C. A first refrigerant is R601a (isopentane), a second refrigerant is R245Fa (perfluoropropane), a third refrigerant is R290 (propane), a fourth refrigerant is R23 (trifluoromethane) or R170 (ethane), a fifth refrigerant is R14 (carbon tetrafluoride), and a sixth refrigerant is R740 (argon). The total molar concentration of the six refrigerants is 100%. The non-combustible mixed refrigerant suitable for the refrigeration temperature region at the temperature of -135 DEG C to -105 DEG C has the advantages that the system is simple, performance is reliable, and the mixed refrigerant is nontoxic, environmentally friendly and free of ODP; the refrigerants are all popular refrigerants on the market, purchasing is convenient, and the price is lower; in this way, a maintenance technicist can more conveniently carry out operation and mastering.
Owner:张永康
Solar energy adsorptive central air conditioning cooling tower
InactiveCN1587879AImprove cooling efficiencyReduce the temperatureClimate change adaptationEnergy efficient heating/coolingCooling towerEngineering
Solar energy belongs to refrigeration and building circumstance and equipment engineering technical field which includes solar energy collector, two activated carbon adsorption beds, condensing heat exchanger, throttle valve, evaporating heat exchanger, axial flow fan, padding, shell, spray header, air inlet, air outlet, exhaust pipe and twelve control valve, methyl alcohol steam desorpted by a adsorption bed which works using solar energy flows into the condensing heat exchanger6 is cooled by wet air, changed to liquid state methyl alcohol with low temperature, then enters the evaporating heat exchanger under gravity action cooled down through evaporating heat exchanger, liquid state methyl alcohol in the evaporating heat exchanger is evaporated with heat absorption through another 3adsorption bed, then cool the cooled water which has passed padding ulteriorly. The invention can improve refrigerating unit, raise coefficient of performance, reduce energy cost of refrigerating unit, plays significant role in energy saving of central air conditioning system and has notably social and economic benefit.
Owner:SHANGHAI JIAO TONG UNIV
Wall air-conditioner
InactiveCN1979025AImprove the cooling factorReduce cooling ventilationLighting and heating apparatusAir conditioning systemsEvaporatorEngineering
The invention relates to an improvement for air condition. It supplies a wall air condition. It could be installed in wall. It distributes compressor, condenser, heat emission fan, evaporator, cold supplying fan to an integration to form a narrow high shaped air condition, decrease occupying area. It is convenient to distribute in wall. The invention could be used in home and in business.
Owner:柳德宝 +1
Refrigeration system with low energy consumption and using method thereof
ActiveCN102353169AActs as an expansion valveNo energy consumptionEvaporators/condensersCompression machines with reversible cycleCarnot cycleEngineering
The invention relates to a refrigeration system. The refrigeration system comprises an evaporator, a condenser, a compressor and a U-shaped tube or a straight tube, wherein the mounting position of the condenser is higher than that of the evaporator; and the height H of the U-shaped tube or the depth H that the straight tube is inserted below the liquid level of a refrigerant in the evaporator accords with a formula of rho gH>p2-p1, wherein rho is the density of the refrigerant. For a condition that indoor temperature T1 is lower than outdoor temperature T2, the refrigeration system adopts Carnot reverse cycle; and for a condition that the indoor temperature T1 is higher than the outdoor temperature T2, the refrigeration system adopts Carnot cycle, p2<p1, at the moment, refrigerant steam pushes the compressor to idle, and the refrigerant in the U-shaped tube or the straight pipe completes constant entropy compression by means of self gravity without energy consumption, so that the energy consumption of the system is extremely low. The refrigeration system can use other liquid with the boiling point between 20 and 100 DEG C, such as methanol, ethanol and the like as the refrigerant.
Owner:卓卫民
Method for manufacturing rotary compressor
InactiveCN101230857AFacilitate contact areaOptimized areaRotary piston pumpsRotary piston liquid enginesEngineeringMechanical engineering
The invention aims to reduce leakage of a freezing medium and restraining sliding resistance and improving the coefficient of performance (COP) at the same time in a rotary compressor. The rotary compressor (10) of the invention comprises a rotary compression factor (32), a cylinder (40), a roller (48), an upper part support part (54) and a lower part support part (56) of a bearing, wherein, the rotary compression factor is driven by a rotary shaft (16) of a driving factor (14); the rotary compression factor (32) is formed from the cylinder; the roller is arranged in the cylinder (40), and is tabled with an eccentric part (44) of the rotary shaft (16) to eccentrically rotate; the bearing is used for obturating the opening surface of the cylinder (40), and is provided with the rotary shaft (16). The ratio A / B is set at 30mm<2> / cm<3> to 60mm<2> / cm<3>, wherein, A is the contact area of the roller (48) contacting with the upper part support part (54) and the lower part support part (56); B is the removal capacity of the roller (48) and the rotary compression factor (32).
Owner:SANYO ELECTRIC CO LTD
Gas-liquid separator
PendingCN109974355ASlow flowIncrease kinetic energyCompression machinesRefrigeration componentsVapor–liquid separatorSpray nozzle
The invention discloses a gas-liquid separator. The gas-liquid separator comprises a tank, wherein a gas-liquid separator inlet flow passage is arranged on the tank and is sequentially connected to apre-rotation section and a pre-rotation cavity; the middle part of the tank is a separation cavity; the lower part of the tank is a liquid storage cavity; a liquid discharging pipe located at the bottom communicates with the liquid storage cavity; a gas discharging pipe goes deep into the central position of the tank; the gas-liquid separator inlet flow passage is an injecting device with a swirling function; when a liquid working medium flows through an injecting nozzle, a gas working medium of an injecting hole is sucked, the liquid working medium and the gas working medium are mixed by a swirling generator and are pressurized at a diffusion section, and then the mixture is separated into liquid and gas under the action of centrifugal force; the liquid is discharged by the liquid discharging pipe in the liquid storage cavity, and enters an expansion valve; and the gas is discharged by the gas discharging pipe, and enters a compressor, thus, the primary injection and the gas-liquid separation are completed. The gas-liquid separator can improve the injection efficiency of a jet type refrigeration system, then improves the refrigeration efficiency, meanwhile increases the utilization rate of space of the system, enhances the compactness of the system, and has relatively high gas-liquid separation efficiency.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Solution humidity-regulation air treatment system utilizing geothermal hot spring resources and treatment method thereof
ActiveCN103528154AReduce conversion lossIncrease profitSpace heating and ventilation safety systemsLighting and heating apparatusAir treatmentEngineering
The invention provides a solution humidity-regulation air treatment system utilizing geothermal hot spring resources and a treatment method for performing dehumidification and humidification on indoor air. According to the solution humidity-regulation air treatment system, the geothermal hot spring resources are directly utilized as a heat source to achieve regeneration of a humidity regulating solution and accordingly conversion energy sources such as electric energy are avoided so as to achieve energy conservation and emission reduction; meanwhile humidity regulating treatment and temperature regulating treatment on treated air are separated from each other through structural optimization and accordingly refrigeration coefficients of a surface air cooler can be improved, the efficiency of the temperature regulating treatment and the humidity regulating treatment can be improved, the energy consumption of the surface air cooler can be reduced, and energy sources can be saved; dual functions of cooling dehumidification and warming humidification can be achieved and the solution humidity-regulation air treatment system can be suitable for summer and winter air conditioning just through simple conversion control and accordingly the problem that solution humidity-regulation air conditioning systems are single in function in the prior art is solved and the market application prospect of the solution humidity-regulation air treatment system is extended.
Owner:CHONGQING UNIV
Secondary intermediate heat exchanger for thermal coupling coaxial two-stage pulse pipe refrigerator and design method
InactiveCN106642822AMinimizeGuaranteed heat exchange effectEvaporators/condensersPlate heat exchangerIntermediate heat exchanger
The invention discloses a secondary intermediate heat exchanger for a thermal coupling coaxial two-stage pulse pipe refrigerator and a design method. The heat exchanger is of a structure which is machined through a hollow high-heat-conductivity material and is approximate to a column shape, and conical slit bodies are arranged in the middle. The slit bodies are of trapezoidal fin structures arranged on the circumference uniformly. The inner hole diameter of each slit body is equal to the diameter of a pulse pipe, the outer diameter of the upper end of each slit body is equal to the inner diameter of a regenerator of the low-temperature section, and the outer diameter of the lower end of each slit body is equal to the inner diameter of a regenerator of the high-temperature section. According to the secondary intermediate heat exchanger, conical slits are uniformly machined in the portions of unequal diameters, maximization of the heat exchange area in the limit size is achieved, the machining manner transits naturally from the large-diameter end to the small-diameter end, and the flow loss is minimized. The secondary intermediate heat exchanger can effectively improve the overall performance of the thermal coupling coaxial two-stage pulse pipe refrigerator.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
Jet type supercooling refrigeration system
PendingCN109855323AIncrease subcoolingExtended service lifeCompression machinesSubcoolersEngineeringHigh pressure
The invention discloses a jet type supercooling refrigeration system, and aims at providing a refrigeration system capable of obtaining a large degree of supercooling and low operation cost. The jet type supercooling refrigeration system comprises a main refrigeration cycle and a jet subcooling refrigeration cycle; the cooling heat of the high temperature gas of the compressor exhaust port in themain refrigeration cycle drives an injector in the jet subcooling refrigeration cycle. The refrigeration system can obtain a large degree of subcooling, and the high-pressure refrigerant liquid in a generator is heated by the cooling heat of the high-temperature gas of the compressor exhaust port, so that the jet supercooling cycle can use the waste heat effectively; without other energy input, the operation cost is reduced. Meanwhile, the refrigerant entering a main condenser has a lower temperature, the space occupied by the condenser is reduced, the cooling process is more sufficient, the energy efficiency of the system is improved effectively; and the service life of the compressor is prolonged.
Owner:TIANJIN UNIV OF COMMERCE
Rotary compressor and method for manufacturing the same
ActiveCN1594885AFacilitate contact areaOptimized areaRotary piston pumpsRotary piston liquid enginesEngineeringRefrigeration
The purpose of this invention is to decrease the leakage of refrigeration preparation in the revolving compressor, and restrain sliding resistance and increase refrigeration coefficient (COP). The revolving compressor of this invention (10) includes: the revolving axletree(16) of factors droved (14), revolving and compressing factors of the drive (32), the bicycle pump (40) of the revolving and compressing factors (32), the eccentric roller (48) set in the pump and tabling to the eccentric part of the revolving axletree, the ringent side of the obdurate pump (40) with the upper supporting parts (54) of the revolving axletree (16) and the lower supporting parts (56), the tangent acreage A of the roller (48) and the upper (54) and the lower supporting parts (56), the vent volume B of the revolving and compressing factors, the ratio of A and B (A / B) is 30 sq mm / cu cm to 60 sq mm / cu cm.
Owner:SANYO ELECTRIC CO LTD
An air conditioner
InactiveCN105890067AReduce the temperatureFast, convenient and efficient to useCondensate preventionLighting and heating apparatusEngineeringWater pipe
The invention provides an air conditioner comprising an outer shell and a condenser in the outer shell. The air conditioner also comprises a condensed water collector, a water overflow pipe, a water evening pipe, a water collecting and evaporating box, an upper water absorbing layer and a lower water absorbing layer. The condensed water collector communicates with a drain pipe of an indoor unit of the air conditioner; the water overflow pipe is connected with the side surface of the lower portion of the condensed water collector; the water evening pipe is arranged above the condenser; the upper portion of the outer shell is provided with an inlet; the upper end of the water evening pipe is connected with the water overflow pipe via the inlet and the lower end is fixed to the top of the inner cavity of the outer shell; the upper water absorbing layer and the lower water absorbing layer are made of sponge material and are laid on the upper portion and the lower portion of the condenser; the water collecting and evaporating box is located below the condenser. The air conditioner is simple in structure and good in energy-saving effect; the air conditioner can be obtained by directly modifying a conventional outdoor unit; the technical solution is especially suitable for the energy-saving modification of outdoor units of wall-mounted small air conditioners.
Owner:曹定英
High efficiency environmental protection energy-saving double source double-cold-three-temperature three effects cooling/heating water heating machine system
InactiveCN101178190ASignificant energy savingImprove heating and cooling efficiencyFluid heatersDomestic hot-water supply systemThermal energyElectricity
The invention relates to a high efficiency environment-friendly and energy conservation double-source double-cooling three-warm three-efficiency temperature conversion water heater system, comprising a cooling medium circulating system and a cold-hot water circulating system. The system drives a cooling medium through a thermal pump to absorb the thermals in the air and water so as to supply the temperature conversion water heater system with energy sources. The invention is characterized in that the system has the effects of environmental protection, high efficiency and energy conservation; the refrigeration EER of an air conditioner reaches 5.0 to 6.0, with free hot water; the refrigeration EER reaches 6.0 to 8.0; and the comprehensive EER reaches 8.0 to 12.0. When the system is in operation, the highest temperature of the water can reach 100 DEG C, while the lowest temperature of the water can reach 1 DEG C. The invention has the advantages of completely water and electricity separation, good safety, strong practicality and board application scale.
Owner:王子忠 +1
Defrosting-free air cooling and water cooling all-in-one machine air source heat pump
InactiveCN105485958AImprove the cooling factorMechanical apparatusCorrosion preventionFour-way valveWater source
The invention relates to a defrosting-free air cooling and water cooling all-in-one machine air source heat pump. The defrosting-free air cooling and water cooling all-in-one machine air source heat pump is composed of an air heat exchange part and a heat transmission tail end part which are connected through a pipeline, and a circulating medium in the connecting pipeline is a refrigerant or a secondary refrigerant. The air heat exchange part is mainly composed of an exhaust fan, a spraying head, a fin heat exchanger, grid-shaped padding, a liquid storage tank, an automatic antifreezing liquid guiding and discharging pipe, a retaining liquid surface control switch and a spraying water pump. According to the heat transmission tail end part, when a low-power compressor system with a four-way valve is selected, the structure of the defrosting-free air cooling and water cooling all-in-one machine air source heat pump is the same with that of a common air source heat pump; and when a large-power compressor system without a four-way valve is selected, the structure of the defrosting-free air cooling and water cooling all-in-one machine air source heat pump is the same with the structure of a water source heat pump and a water cooling unit. According to the defrosting-free air cooling and water cooling all-in-one machine air source heat pump, defrosting is avoided during operation in winter, the refrigerating coefficient of operation in summer is the same with that of the water cooling unit, the high-power compressor system can be applied to the air source heat pump unit, and the high-power water cooling unit can be applied to the field of heating in winter.
Owner:王言明
Secondary throttle pipe-in-pipe recooling device for air conditioner
The invention provides a secondary throttle pipe-in-pipe recooling device for an air conditioner. The secondary throttle pipe-in-pipe recooling device is connected with a primary throttling device on a refrigeration loop of the air conditioner and comprises a secondary throttle heat exchanger, a throttling piece and a gas-liquid separator; the secondary throttle heat exchanger comprises a first red copper pipe, a second red copper pipe, a third red copper pipe and a fourth red copper pipe which are connected with one another through welding; the third red copper pipe is communicated with the first red copper pipe and the second red copper pipe; an opening end of the fourth red copper pipe penetrates through the first red copper pipe and the second red copper pipe respectively; an access port of the first red copper pipe and an access port of the fourth red copper pipe are connected with each other in parallel through the throttling piece and are connected with a condenser; and an access port of the second red copper pipe and an access port of the fourth red copper pipe are connected with each other in parallel through the throttling piece and are connected with an evaporator. In the invention, a part of throttled low-temperature saturated liquid is used to reduce an enthalpy value of the liquid output from the condenser and increase the enthalpy value of the low-temperature evaporation liquid; the heat exchange area of the condenser is reduced; and reliability of the system and performance coefficient of the air conditioner are improved.
Owner:MIDEA GRP CO LTD
Single-stage integrated drying equipment
InactiveCN101703991ACompact structurePerfect drying processPretreated surfacesCoatingsProcess engineeringProduct gas
The invention relates to single-stage integrated drying equipment which is characterized by comprising a box body (10), a drying unit (60) and a heat pump device (80), wherein the box body (10) comprises a baking oven cover (20) and a base (50); a drying cavity (13) and a recovering cavity (14) which are mutually communicated are arranged in the baking oven cover (20), and a gas passage with internal circulation drying is formed; the drying unit comprises a blower (30) and is provided with an air inlet passage (63), an air exhaust passage (64) and an air outlet passage (68); the heat pump device (80) comprises a heat pump compressor (89), a heat pump throttling valve (87), a heat pump condenser (88) and a refrigeration evaporator (96); and the heat pump compressor (89), the heat pump condenser (88), the heat pump throttling valve (87) and the refrigeration evaporator (96) are sequentially connected to form an end-to-end circulation structure. The invention is widely suitable for processing equipment to dry thin belt-shaped objects which move continuously, and has the advantages of small volume and no discharge of waste gas, very obvious social benefit and economic benefit, and energy is saved by more than 60%.
Owner:VERBOCA ENERGY SAVING TECH CO LTD
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