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410 results about "Frozen Water" patented technology
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Ice scraper assembly
InactiveUS6243906B1Avoid disadvantagesEfficient removalLiquid surface applicatorsCarpet cleanersSnow removalEngineering
A combination ice scraper and snow removal assembly which has multiple blades in contact with the working / windshield surface to more efficiently remove ice and snow therefrom and reduce the amount of energy expended by the user to scrape and remove snow from the working surface. This combination ice scraper and snow removal assembly includes a main body portion having two ends thereof. A scraping assembly is provided at one end of the main body for scraping a frozen water material from a working surface. The scraping assembly includes at least three scraping blades with at least one of the scraping blades having a continuous blade edge and at least two of the scraping blades having toothed cutting edges. As a result, in a single swiping or scraping action of the user, ice or snow can be dislodged from the working windshield / surface by the scraping blade assembly and then cleared and / or removed from that dislodged location by the cleaning blade removal assembly in a limited path of travel.
Owner:PRESTONE PROD CORP
Method for blending a beverage in a single serving cup
A method and apparatus for preparing a single serving of a frozen slurry beverage in a disposable drink container or cup by preparing a supply of fine frozen particles of water in the form of ice flakes and / or ice nuggets of compressed ice flakes, depositing a predetermined quantity or amount of the fine frozen particles of partially frozen water into a disposable single serving drinking cup or container, dispensing or adding a predetermined quantity or amount of flavored liquid beverage mix into the disposable single serving drinking cup or container and blending the fine frozen particles of partially frozen water and the flavored liquid beverage mix into a substantially uniform frozen slurry beverage of a predetermined consistency.
Owner:ENODIS
Self-adapting energy saving control device with variable flux for compression type central conditioner
InactiveCN1415915AReduce wearWith the purpose of saving energy and reducing consumptionSpace heating and ventilation safety systemsLighting and heating apparatusIce waterCooling tower
This invention discloses a compressed central air-conditioning adaptive variable flow energy saving control device composed of an adaptive variable flow controller, ice water control subsystem, frozen water control subsystem, cooling water control subsystem, cooling tower blower fan control subsystem, the adaptive variable flow controller connects with control subsystem of ice water device, frozen water pump, cooling water and blower fan of cooling tower capable of making every operational target to reach the most optimized.
Owner:贵州华城楼宇科技有限公司
Method and apparatus for inhibiting ice accumulation in HVAC systems
InactiveUS6971248B1Degrades design efficiencyEasy to operateAir heatersCorrosion preventionHeat sinkHeating system
A non-stick coating, which inhibits frozen moisture accumulation, is applied to exterior exposed portions of heating and cooling systems where ice or other frozen moisture can accumulate and impair system design operational efficiencies; where heat exchange tubing and fins are downwardly sloped or angled; with an optional protective shell encasement which can be shaped to provide a vena contracta effect; with an optional electric fan to enhance airflow for heat exchange; with an optional electric vibrator to enhance inhibition of frozen moisture accumulation; with a downwardly sloped base to direct falling frozen moisture away from the heat exchange equipment; for use in conjunction with an air source heat pump system, an evaporative cooling system or a chiller, or as a supplement to a water-source heat pump system or to a direct expansion heat pump system; and for use with any other refrigerant-based heating system or cooling system.
Owner:WIGGS B RYLAND
Combined cold supply system of cooling towers and water cooling unit and control method thereof
ActiveCN101650056AImprove energy utilizationLong cooling timeSpace heating and ventilation safety systemsLighting and heating apparatusCooling towerEngineering
The invention discloses a combined cold supply system of cooling towers and a water cooling unit, comprising a refrigeration unit, a heat exchanger, a plurality of cooling towers, a temperature detection device and a control device, wherein the refrigeration unit is used for supplying frozen water for an air conditioner end system; the heat exchanger is used for supplying cooling water for the airconditioner end system; the cooling towers are used for selectively supplying the cooling water for the heat exchanger and the refrigeration unit; the temperature detection device is at least used for detecting the water outlet temperature of the cooling towers and / or the temperature of the cooling water of the heat exchanger and the demand temperature and the water return temperature of the cooling water of the air conditioner end system; and the control device is used for controlling the cooling water of the cooling towers and simultaneously or individually supplying the cooling water for the heat exchanger and the refrigeration unit according to the relationship among all temperatures detected by the temperature detection device. The invention also discloses a control method of the combined cold supply system of the cooling towers and the water cooling unit. A combined cold supply mode of the cooling towers and the water cooling unit is adopted, and therefore, the combined cold supply system has the advantages of higher utilization ratio of the cold supply energy quantity of the cooling towers, longer cold supply time and better energy saving effect.
Owner:BEIJING KANGFU TECH
Ice retaining shot glass system
InactiveUS7124603B2Avoid disadvantagesSimple and inexpensive to manufactureLighting and heating apparatusRefrigeration devicesAlcoholDetent
A shot glass system has means for holding frozen water, i.e. ice against the alcohol-retaining walls comprising circumferential detents and lips placed within a chamber which is formed adjacent the walls.
Owner:BIANCO MARK LO
System and method for monitoring operation energy efficiency ratio of water chilling unit
ActiveCN101435643AReal-time maintenanceReduce wasteSpace heating and ventilation safety systemsSpace heating and ventilation control systemsPower sensorRefrigeration compressor
The invention relates to a system for monitoring energy efficiency ratio of operation of a water cooler set and a monitoring method thereof. The system comprises a controller for monitoring the energy efficiency ratio of operation of the water cooler set, a local monitoring computer, a remote monitoring computer and a frozen water supply temperature sensor of a cold supply pipe network, a frozen water return temperature sensor of the cold supply pipe network, a frozen water flowmeter of the cold supply network and a power sensor of a refrigeration compressor which are correspondingly connected with the water cooler set; the frozen water supply temperature sensor of the cold supply pipe network, the frozen water return temperature sensor of the cold supply pipe network, the frozen water flowmeter of the cold supply network and the power sensor of the refrigeration compressor are connected with the controller for monitoring the energy efficiency ratio of operation of the water cooler set respectively; and the local monitoring computer and the remote monitoring computer are connected with a signal of the controller for monitoring the energy efficiency ratio of operation of the water cooler set through a convertor I and a convertor II respectively. The system is suitable for the water cooler set of a central air conditioning system using electric power as primary drive energy; and the measured energy efficiency ratio of operation of the water cooler set is suitable for supervising daily energy-saving operation of the water cooler set.
Owner:GUANGZHOU YUANZHENG INTELLIGENCE TECH
Method for blending a beverage in a single serving cup
A method and apparatus for preparing a single serving of a frozen slurry beverage in a disposable drink container or cup by preparing a supply of fine frozen particles of water in the form of ice flakes and / or ice nuggets of compressed ice flakes, depositing a predetermined quantity or amount of the fine frozen particles of partially frozen water into a disposable single serving drinking cup or container, dispensing or adding a predetermined quantity or amount of flavored liquid beverage mix into the disposable single serving drinking cup or container and blending the fine frozen particles of partially frozen water and the flavored liquid beverage mix into a substantially uniform frozen slurry beverage of a predetermined consistency.
Owner:ENODIS
Ice-storage cold-heat pump coupled multi-stage total-heat recovery fresh air processor
InactiveCN102589073AReduce processing energy consumptionImprove qualityEnergy recovery in ventilation and heatingHeat recovery systemsFresh airEngineering
The invention discloses an ice-storage cold-heat pump coupled multi-stage total-heat recovery fresh air processor, belonging to the energy source utilization technology and the air adjusting field. The processor consists of an air exhaust part, a fresh air processing part, a total-heat recoverer and a heat pump system. The heat pump system comprises a compressor, a condenser, a condensation heat recoverer, an evaporator and an expansion valve. The indoor low-temperature low-humidity exhaust air is used for exhausting the condensation heat quantity of a refrigerating system in summer; and the indoor high-temperature high-humidity exhaust air is used for exhausting the evaporation cold quantity of the refrigerating system in winter. The total-heat recoverer performs multi-stage total-heat recovery of fresh air and exhaust air so as to improve the heat recovery efficiency. The heat pump system provides necessary cold quantity and heat quantity to a fresh air processing system. The ice-storage cold provides the low-temperature frozen water to completely dehumidify the fresh air so as to achieve lower moisture content.
Owner:吕智
Cascaded ice-storage air conditioning system and method utilizing same to supply cold air for air conditioner
ActiveCN102155772AAvoid wastingReduce wasteSpace heating and ventilation safety systemsDomestic cooling apparatusCold airDual mode
Owner:上禾谷能源科技(北京)有限公司
Refrigeration system for mine cooling
ActiveCN103306705ANo need to consume other powerIncrease resistanceTunnel/mines ventillationEngineeringWater circulation
The invention discloses a refrigeration system for mine cooling. A compressor (1) is connected with a condenser (2) and mounted on a mine; the compressor (1) and the condenser (2) are connected with an evaporator (4) mounted underground through a restricting element (3), so that a refrigeration cycling system is formed; the refrigeration cycling system is filled with a refrigerating agent; the condenser (2) is connected with a closed heat exchanger (5) through a cooling water circulating pump (6) and by pipelines, so that a cooling water circulation system is formed; the cooling water circulation system is filled with cooling water; and the evaporator (4) is connected with an air cooler through a frozen water circulating pump (7), so that a frozen water circulation system is formed, and the frozen water circulation system is filled with frozen water.
Owner:江苏中国科学院能源动力研究中心 +1
Freeze-drying method and apparatus for the same
InactiveUS20130326899A1Improve performanceWide rangeDrying solid materials with heatDrying solid materials without heatFreeze-dryingEngineering
A freeze-drying method by a far infrared heater including the steps of: mounting the frozen objects to be dried prior to heating in the containers in which an absorption power of the radiant heat from the far infrared heater and a thermal conductivity are high, respectively; mounting the said objects which are contained in the containers into the reduced pressure tank under an atmospheric pressure; heating the containers by the radiant heat from the far infrared heater disposed in the reduced pressure tank; and sublimating the frozen water contents of the objects in a reduced pressure state where sublimation of the objects occurs in the reduced pressure tank.
Owner:FUTAMI SEIKI +1
Freeze-drying method and apparatus for the same
InactiveUS9046303B2Efficient dryingImprove performanceDrying solid materials with heatDrying solid materials without heatFreeze-dryingEngineering
A freeze-drying method by a far infrared heater including the steps of: mounting the frozen objects to be dried prior to heating in the containers in which an absorption power of the radiant heat from the far infrared heater and a thermal conductivity are high, respectively; mounting the said objects which are contained in the containers into the reduced pressure tank under an atmospheric pressure; heating the containers by the radiant heat from the far infrared heater disposed in the reduced pressure tank; and sublimating the frozen water contents of the objects in a reduced pressure state where sublimation of the objects occurs in the reduced pressure tank.
Owner:FUTAMI SEIKI +1
Air conditioning system for spinning workshop and control method
InactiveCN106545937AReduce consumptionGuaranteed moisture contentMechanical apparatusSpace heating and ventilation safety systemsFrequency changerSpinning
The invention discloses an air conditioning system for a spinning workshop. The system comprises an exhaust adjusting window, a fresh air adjusting window, a return air adjusting window, a condensation pump, a cooling adjusting valve, a heating adjusting valve, a shower nozzle and a water circulation system and further comprises a frequency converter, a temperature and humidity and flow detection piece, a central controller unit and a monitoring unit. The invention further discloses a regulating method for the air conditioning system. The method comprises the steps of: the central controller unit calculates indoor and outdoor enthalpy values of the spinning workshop by applying an enthalpy value calculating formula and compares results; when the outdoor enthalpy value is greater than the indoor enthalpy value, the exhaust adjusting window and the fresh air adjusting window are closed, and the return air adjusting window is thoroughly opened, and the central controller unit controls freeze water and / or steam heating to adjust air; and when the outdoor enthalpy value is smaller than the indoor enthalpy value, the central controller unit firstly controls the exhaust adjusting window, the fresh air adjusting window and the return air adjusting window in real time according to a set value, and then regulates by combining the freeze water and / or steam heating. By utilizing a natural energy source, consumption of steam and freeze water is reduced, and consumption of electrical energy is reduced.
Owner:河南华东工控技术有限公司
Defrosting methodology for heat pump water heating system
Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. When a sensor detects that frozen water droplets form on the evaporator, a valve positioned between the discharge of the compression and inlet of expansion device is opened. Refrigerant from the discharge of the compressor bypasses the gas cooler and enters the inlet of the expansion device. The high temperature refrigerant melts the frost on the evaporator. As the frost melts, the passage of the evaporator is opened to allow air to flow through the evaporator.
Owner:CARRIER CORP
System and method for freezing resistance of cooling tower in winter by utilizing indirect evaporative cooling
The invention discloses a system and a method for freezing resistance of a cooling tower in winter by utilizing indirect evaporation cooling, belonging to the technical field of evaporation cooling. The system comprises three parts, namely an indirect evaporation cooling tower, a plate-type heat exchanger, and a vapour compression type refrigerator, wherein the indirect evaporation cooling tower comprises air-water surface type coolers, a cooling water circulation pump, a filler tower and an exhaust fan, the stock solution area of the filler tower is connected with the plate-type heat exchanger and a condenser of the vapour compression type refrigerator in sequence through a system circulation pump, and then returns to a spraying system of the filler tower. The system can be operated in summer, winter and a transition season, according to the outside temperature, a first valve and a second valve at the cooling water side are regulated, and the condition that the temperature in the cooling tower is kept to be more than 0 DEG C can be ensured, so that the system can be operated steadily all year.
Owner:TSINGHUA UNIV
Open-excavated tunnel water stopping structure for protecting groundwater environment and construction method
ActiveCN105908765AAvoid pollutionAvoid settlement deformationProtective foundationWater qualityEngineering
The invention relates to an underground construction technology, and specifically relates to an open-excavated tunnel water stopping structure for protecting a groundwater environment and a construction method thereof. The open-excavated tunnel water stopping structure comprises vertical frozen earth water stopping layers arranged at two sides of an open-excavated foundation pit of a tunnel, and a horizontal frozen earth water stopping layer arranged at the bottom part of the open-excavated foundation pit of the tunnel, wherein the vertical frozen earth water stopping layers intersect with the horizontal frozen earth water stopping layer; the bottom parts of the vertical frozen earth water stopping layers are lower than the bottom part of the horizontal frozen earth water stopping layer. According to the open-excavated tunnel water stopping structure, the vertical frozen earth water stopping layers and the horizontal frozen water stopping layer form a U-trough shaped frozen earth water stopping layer to protect the groundwater environment, and thus the groundwater can be prevented from being polluted during the tunnel construction process; a frozen earth water stopping structure is adopted, so that wide-range draining construction can be avoided, and precious groundwater resources can be saved; meanwhile, surrounding buildings and structures can be prevented from being subjected to sedimentation and deformation caused by the draining construction.
Owner:CHINA RAILWAY ENG CONSULTING GRP CO LTD
Energy recovery double-cold-source high-enthalpy-difference energy storage fresh air handling unit and control method thereof
InactiveCN106705334AImprove energy efficiency ratioReduce processing energy consumptionEnergy recovery in ventilation and heatingMechanical apparatusBusiness efficiencyFresh air
The invention discloses an energy recovery double-cold-source high-enthalpy-difference energy storage fresh air handling unit. The unit comprises an air conditioning system, a heat pump system and an energy storage system; the air conditioning system includes a fresh air machine, an exhaust fan and an air total-heat recoverer; the heat pump system includes an annular close-connected compressor, a condensation heat recoverer, a condenser, an expansion valve, a direct expansion evaporator and an energy storage evaporator; the energy storage system includes an energy storage tank and a high-entralpy-difference surface cooler connected with each other; and the condensation heat recoverer, the direct expansion evaporator and the high-entralpy-difference surface cooler are respectively arranged on a fresh air channel. The unit largely reduces the operation cost by using the peak-valley price, provides low-temperature frozen water needed by deep dehumidification, increases the energy-efficiency ratio of the heat pump system through recovering the condensation heat, can improve the quality of indoor air through low-temperature cold sources and increment of the fresh air quantity, reduces the fresh air conditioning energy consumption by exhausting and heat recovery, and facilitates to save the energy and reduce the environmental pollution.
Owner:ZHONGKAI UNIV OF AGRI & ENG +1
Process for evenly preparing spinning by using ultrahigh molecular weight polyethylene high-shearing solution
ActiveCN101724921AImprove fiber mechanical propertiesSmall fiber deviationArtificial filament heat treatmentWet spinning methodsFiberHydrogen
The invention discloses a production technique for evenly preparing two-step spinning by using ultrahigh molecular weight polyethylene high-shearing solution, comprising the following steps of: matching the ultrahigh molecular weight polyethylene with a solvent according to a certain proportion; preparing ultrahigh molecular weight polyethylene emulsifier solution through a high-shearing method; extruding liquid through a double screw to squeeze spinning jets; soaking a gelation precursor with frozen water; and preparing a polyethylene fiber with high intensity and high modulus through carbon-hydrogen cleaning, extraction and stretching, drying and multiple heat-stretching. The invention has the advantages of high fiber mechanical property, small fiber deviation, low energy consumption of production, favorable production environment, short production technique process and the like.
Owner:NINGBO DACHENG ADVANCED MATERIAL
Processing technique to thaw partially frozen fruits and vegetables and incorporating solids
ActiveUS20090162504A1Avoid damageImprove infusion efficiencyMilk preparationDough treatmentInfusion timeHigh rate
A method for thawing and infusing partially frozen fruits or vegetables. Individually quick frozen fruits or vegetables are introduced into a mixing kettle. An infusion solution is circulated from a solution tank, through a bed of fruits or vegetables, and back to a solution tank. The infusion solution is maintained at a temperature of about 45° to about 50° F. and at a Brix of about 40° to about 50°. The infusion solution is pumped and circulated at a high rate which reduces thaw time but does not result in product degradation. After thawing, the pumping and re-circulating rate is decreased to allow for increased infusion efficiency. Pressure pulses are applied to the product in the mixing tank which decreases the infusion time. Thus, thawed and infused fruit and vegetables are produced quickly and with minimal product degradation.
Owner:FRITO LAY NORTH AMERICA INC
Air-cooling heat pump unit and anti-freezing method for plate heat exchanger
ActiveCN102538300APrevent frost crackingPrevent freezingHeat pumpsRefrigeration safety arrangementAnti freezingEvaporation
The invention provides an air-cooling heat pump unit, which comprises a compressor, a plate heat exchanger, a pressure sensor (6) and a controller. The plate heat exchanger used as an evaporator is communicated with a first refrigerant pipeline (13) led out from an air suction port of the compressor. The pressure sensor is used for sensing refrigerant evaporation pressure of the plate heat exchanger and connected onto the first refrigerant pipeline. The controller is provided with a module which is used for outputting signals enabling the air-cooling heat pump unit to stop when sensing values of the pressure sensor are smaller than the set pressure value. The invention further provides an anti-freezing method for the plate heat exchanger, which is used for the air-cooling heat pump unit and includes anti-freezing steps: using the pressure sensor to detect the refrigerant evaporation pressure of the plate heat exchanger; and comparing the refrigerant evaporation pressure with the set pressure value, and when the refrigerant evaporation pressure is smaller than the set pressure value, stopping the air-cooling heat pump unit, otherwise, keeping the air-cooling heat pump unit in operation. By means of the air-cooling heat pump unit and the anti-freezing method for the plate heat exchanger, frost cracking of the plate heat exchanger caused by frozen water, for heat exchange with refrigerant, in the plate heat exchanger can be effectively prevented.
Owner:QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
PLC energy saving control method of frozen water pump and cooling water pump in central air-conditioning system
InactiveCN101571308ARealize energy savingSpace heating and ventilation safety systemsLighting and heating apparatusTemperature differenceEngineering
The invention relates to a PLC energy saving control method of a frozen water pump and a cooling water pump in a central air-conditioning system, which is realized through the following steps: (1) respectively installing a ratio adjusting valve on a frozen water system and a cooling water system; (2) starting the cooling water pump, starting the frozen water pump after the cooling water pump delays Tb, and then starting a freezer after the frozen water pump delays Ta, and causing the temperature difference of inlet and outlet water to approach to a set value through continuous adjustment of PLC; (3) keeping a freezing unit stopped if Th is less than Tk-delta; starting the freezing unit if Th is not less than Tk+delta t; and running the freezing unit by repeating the steps (1) and (2). The PLC energy saving control method has the advantage that the energy saving of the running of frozen water and cooling water systems is realized.
Owner:SHANGHAI HANYE REFRIGERATION MACHINERY
Process for freezing and crystallizing triformol continuouslly by sleeved crystallizer
ActiveCN101074225AImprove heat transfer effectIncrease production capacityOrganic chemistrySolution crystallizationElectricityEngineering
A process for freezing and crystallizing triformol continuously by double-pipe crystallizing device is carried out by entering fresh triformol from pre-system into circulating pump I, mixing suspensoid with circulating loop with after-crystallizing device and connecting pipeline, delivering partial triformol suspensoid in after-crystallizing device to centrifuge, by conveying pump, separating triformol crystal from mother liquid, returning partial mother liquid to after-crystallizing device, returning partial mother liquid to pre-system, transferring partial triformol suspensoid in after-crystallizing device to double-pipe crystallizing-device by circulating pump II, heat exchanging with frozen water to form triformol crystal nucleus, and returning triformol suspensoid to after-crystallizing device. It has less methanal content and consumption of electricity and frozen water and better heat-exchange ability.
Owner:重庆云天化天聚新材料有限公司 +1
Method for planting transplanting type alfalfa
InactiveCN103503684AManagement scienceSolve the problem of dehydrationHorticultureWater sourceDormancy
The invention discloses a method for planting transplanting type alfalfa. The method for planting the transplanting type alfalfa comprises the following steps that alfalfa varieties which are strong in disease resistance and early in dormancy are selected, seeds are selected through the winnowing and screening modes, and the seeds are spread and placed under the blazing sun for 3-4 days; a land which is leeward, exposed to the sun, high in terrain, dry in soil, good in water draining and close to a water source is selected to serve as a seedbed land; the sowing time is selected between March and April, a nutrition pot is used for growing seedlings, the seeding rate is 20 grams per square meter, and seeds are covered by soil by 2 centimeters; water is supplemented and covering is carried out timely according to the soil water regime of a seedbed; transplanting is carried out when the rainy season comes in mid-to-late June, the transplanting method of digging dibble water sitting sowing or digging pits is adopted, or transplanting is carried out before rainy days or after rainy days; weeds around rice seedlings are removed at the time of soil freezing and melting in the late autumn and early winter, in the late autumn and early winter, the land is irrigated once with frozen water and is irrigated with green resuming water when the alfalfa begins to return to green every spring; the alfalfa is not harvested in the year when the alfalfa is transplanted to enable the alfalfa to live through the winter safely, and the alfalfa can be harvested in autumn next year. The method is simple and convenient to operate, and the yield of the alfalfa is improved.
Owner:TIBET AGRI & ANIMAL HUSBANDRY COLLEGE
Water retention method of open coal mining frozen water-bearing stratum
InactiveCN106759245ABarrier excretionProtect environmentUnderground miningSurface miningEcological environmentOpen-pit mining
The invention discloses a water retention method of open coal mining frozen water-bearing stratum, which is applicable to the technical field of coal mining and environmental protection. The method includes steps of exploring distribution content of underground water-bearing stratum of a zone through hydrogeology drilling; practicing a freezing circle interception on the underground water-bearing stratum in a well field scale by an artificial cooling method, and preventing the underground water out of the well field mining scale from discharging to an open mine pit. The water retention method cannot disturb normal production activity, and can effectively prevent underground water body at periphery of the well field from discharging towards the open mine pit, maintain the underground water level at the peripheral zone, and effectively protect the ecological environment at surrounding of the mine zone; particularly, the method is applicable to the water retention and mining in the severely cold opencast working zone in the west part; the local climate condition can be fully utilized to reasonably reduce the energy consumption from practicing the embodiment; the method is economic and environment-friendly, and has very high reliability and practicability.
Owner:CHINA UNIV OF MINING & TECH
Household radiation cooling, heating and air refreshing efficient integrated processing device and operation method
ActiveCN109945354AReduce initial investmentEliminates the need to install multiple unitsMechanical apparatusLighting and heating apparatusFresh airWater circulation
The invention discloses a household radiation cooling, heating and air refreshing efficient integrated processing device and an operation method. The device comprises a cold / hot water distribution box, a steam compressed circulating loop, a solution dehumidification / regeneration circulating loop, a frozen water circulating loop and a fresh air dehumidification / humidification module. The device isprovided with two operating states of a refrigerating mode and a heating mode; in the refrigerating mode, high-temperature frozen water is supplied to a radiation terminal for radiation cooling; and meanwhile, dehumidification solution is used for efficiently dehumidifying fresh air after cooling of the high-temperature frozen water to bear all wet loads of the radiation terminal. Part of condensation heat of an air source heat pump unit is used for regenerating the solution. In the heating mode, the same set of devices is used for generating hot water for radiation heating; and the humidifiedfresh air is supplied indoors to relieve the frosting risk of an outdoor evaporator. The device can synchronously realize that an integrated air conditioning unit operated efficiently under the working conditions in summer and winter drives a radiation cooling / heating air conditioning system, so that the economy of the air conditioning system is improved.
Owner:SOUTHEAST UNIV
High-strength high-toughness freeze-resistant heat-resistant polyacrylamide organic hydrogel and preparation method thereof
The invention discloses a high-strength high-toughness freeze-resistant heat-resistant polyacrylamide organic hydrogel and a preparation method thereof. The polyacrylamide organic hydrogel is preparedby immersing a polyacrylamide hydrogel into polypropylene glycol. The polypropylene glycol acts with water molecules through hydrogen bonding to make free water transformed into non-frozen water or freezable water, at a low temperature, a small amount of free water and the freezable water form tiny ice crystals to be embedded into a polyacrylamide network, the tiny ice crystals make the strengthof the gel increased, and through shear yielding, tensile deformation capacity is given to the gel. Physical entanglement is generated between the polypropylene glycol and polyacrylamide macromolecules to achieve the enhancing effect, and the organic hydrogel shows excellent mechanical properties at the temperature of 25 DEG C and at the high temperature of 60 DEG C. Therefore, the high-strength high-toughness freeze-resistant polyacrylamide organic hydrogel can show the excellent mechanical properties at the temperature of 25 DEG C and at the high temperature of 60 DEG C, moreover, at the temperature much lower than 0 DEG C, the polyacrylamide organic hydrogel still has high deformation and fracture toughness, and the polyacrylamide organic hydrogel has a wide application prospect withina wide temperature range.
Owner:GUANGDONG UNIV OF TECH
Device and method for improving operating efficiency of air compressor by utilizing air pressure waste heat
ActiveCN103452815AQuality improvementImprove efficiencyPositive displacement pump componentsPump installationsGas compressorWater circulation
The invention relates to a technique capable of improving the operating efficiency of an air compressor, and aims at providing a device and a method for improving the operating efficiency of the air compressor by utilizing air pressure waste heat. The device comprises the air compressor, wherein the air compressor is provided with three stages of compressors, an air cooler introduces air, and three stages of coolers output compressed air; the air cooler and an absorption type refrigeration unit are connected by pipelines to form a frozen water circulation loop; the absorption type refrigeration unit is connected with a heat exchanger through a pipeline, the heat exchanger is respectively connected with the three coolers by pipelines, and the three coolers are respectively connected with the absorption type refrigeration unit by pipelines to form a hot water circulation loop; the heat exchanger is connected with a water cooling tower by a pipeline to form a cold water circulation loop. Compared with the prior art, the device and the method for improving the operating efficiency of the air compressor by utilizing the air pressure waste heat, which are disclosed by the invention, have the advantages that the waste heat of the air compressor is effectively recycled and is used back in the air compression system, and the air in an inlet of the air compressor is cooled down and dehumidified, so that the quality and the efficiency of air generation of the air compressor are effectively improved; meanwhile, the operation cost and the maintenance cost of an air compressor set are reduced, and the purpose of saving energy and reducing consumption is realized.
Owner:HANGZHOU ZETA TECH
Fuel cell system
ActiveUS7189467B2Reduce energy consumptionRegenerative fuel cellsFuel cell auxillariesFuel cellsEnergy consumption
A fuel cell system has a heater (10, 11) for heating water in the fuel cell system; and a controller (100) for controlling the heater. The controller (100) executes a stop mode having the smaller energy consumption of a temperature maintenance mode where water in the fuel cell system is maintained to a temperature greater than freezing point in a period after a shutdown the fuel cell system until a scheduled start-up date-time and a defrost start-up mode where frozen water in the fuel cell system is melted when the fuel cell system undergoes a start-up operation. The controller (100) stores a historical external temperature data for a period prior to the shutdown of the fuel cell system. The historical external temperature data is used for predicting the external temperature for the scheduled start-up date-time. The controller (100) calculates the energy consumption in the defrost start-up mode based on the predicted external temperature.
Owner:NISSAN MOTOR CO LTD
Ice retaining shot glass system
InactiveUS20060112722A1Avoid disadvantagesSimple and inexpensive to manufactureLighting and heating apparatusCooling fluid circulationAlcoholDetent
A shot glass system has means for holding frozen water, i.e. ice against the alcohol-retaining walls comprising circumferential detents and lips placed within a chamber which is formed adjacent the walls.
Owner:BIANCO MARK LO
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