132results about How to "Increase cooling capacity" patented technology

A fluid heat exchanger assembly cools an electronic device with a cooling fluid supplied from a heat extractor (R, F) to a plurality of tubes extending between header tanks in an upper portion of a housing. A refrigerant is disposed in the lower portion of the housing for liquid-to-vapor transformation. The tubes are radially flexible to vary the volume of the tubes for modulating the flow of coolant liquid through the tubes in response to heat transferred by an electronic device to the lower portion of the housing.

The invention provides an alkene polymerization system and method. The system comprises more than three reactors connected in series. The first reactor is one or more than two annular pipe reactors; the second reactor is one or more than two stirring kettle reactors; and the third reactor is one or more than two gas-phase fluidized-bed reactors. A catalyst and a reaction material enter a first reactor and is subjected to a polymerization reaction; the reaction product with the catalyst enters the second reactor, the material is supplemented into the second reactor, and a reaction is carried out; the product from the outlet of the second reactor enters the third reactor, the material is supplemented into the third reactor, and a reaction is carried out; and a final product is obtained in the third reactor. The system and method provided by the invention is used for producing ultra-wide-molecular-weight-distribution polyolefin with excellent mechanism performances and processing performances.

The invention proposes a heat and cool power cogeneration system of an integrated multi-functional efficient mini-type gas turbine, which belongs to the novel heat and cool power cogeneration system device. To solve the frequent mismatching of cold and heat load and low efficiency operation of the conventional cogeneration system, measures such as steam reinjection, inlet gas cooling, gas fume and condensate water recovery are introduced on the basis of the heat and cool power cogeneration system of the mini-type gas turbine; in addition, the number of steam outlets and hot-water outlets is increased, thus forming the heat and cool power cogeneration system of the integrated multi-functional efficient mini-type gas turbine. The system is provided with various operation modes suitable for different occasions, can effectively solve the problem of mismatching of cold and heat load of the cogeneration system, so that the system can keep working in highly efficient mode.

The invention discloses a method for converting methanol into propylene, which comprises the following steps of: introducing methanol into a methanol reaction zone to perform reaction so as to obtain a mixture of the methanol, dimethyl ether and water; dividing the mixture into a plurality of reactant streams; feeding the first reactant stream to a first reaction zone to perform reaction to obtain a product stream, mixing the product stream and any one of the other reactant streams, feeding the mixture to the first reaction zone to perform reaction until the product stream is mixed with the last reactant stream and feeding the mixture to the first reaction zone to perform reaction so as to obtain a primary reaction product stream; separating the primary reaction product stream to obtain the propylene, propane, C1 to C2 hydrocarbon, C4 hydrocarbon, C5 to C6 hydrocarbon and hydrocarbons with more than seven carbon atoms; circulating the C1 to C2 hydrocarbon and the C4 hydrocarbon to the first reaction zone to perform reaction continuously; feeding the C5 to C6 hydrocarbon and part of the hydrocarbons with more than seven carbon atoms to the second reaction zone to perform reaction so as to obtain a secondary reaction product stream; and separating the secondary reaction product stream to obtain the propylene. The method is suitable for the reactions with high heat discharge and temperature sensitivity such as the reaction for preparing the propylene from the methanol and has the advantages of high target selectivity, continuous and stable reaction and high efficiency.

The invention relates to a compressor exhaust apparatus, the compressor comprises a compression component and a motor component arranged in a closed casing; the compression component comprises a cylinder, a piston arranged in the cylinder, an eccentric crankshaft capable of driving the eccentric rotation of the piston, a slide plate arranged in a slide plate groove of the cylinder, a main bearing and an auxiliary bearing respectively arranged at two sides of the cylinder; the exhaust apparatus comprises a bearing valve seat arranged on the base bearing, and an exhaust valve sheet, a spring and a stopper which are arranged in the bearing valve seat; a valve seat steam vent is provided at the lower part of the bearing valve seat, a spacing hole is provided at the upper part of the valve seat steam vent; the exhaust valve sheet is carried on the valve seat steam vent, and is capable of moving up and down along an axial direction of the spacing hole; the stopper is positioned at the upper part of the exhaust valve sheet, and is fixedly connected to the spacing hole inner wall; the spring is subjected to pressure welding between the exhaust valve sheet and the stopper. The exhaust apparatus has the advantages of compact structure and simple assembling, can effectively reinforce the rigidity of the bearing valve seat; simultaneously the valve seat thickness is reduced, the clearance volume of the valve seat steam vent is reduced, and the cold amount can be increased.

The invention discloses an air-conditioning system for an animal safety laboratory, mainly comprising an air circulation loop and a cold and hot source loop, wherein the air circulation loop comprises an air supply pipeline, a laboratory and an air return and exhaust pipeline which are sequentially connected; and the cold and hot source loop comprises a cooling tower, a refrigerating unit, an indirect type heat exchanger and a soil source. The air-conditioning system filters the pollutants contained in return air by utilizing -OH purification factors, thereby overcoming the defect that the traditional filter can only filter particulate matters and providing the guarantee for the effective utilization of the return air; the air-conditioning system ensures the safe supply of cold and hot sources of the animal safety laboratory and also enhances the cold supply property of a transition season and winter by combining the soil source, the cooling tower and the refrigerating unit; and in addition, compared with the traditional whole fresh air system, the air-conditioning system has the outstanding advantage of reasonably matching fresh air, the return air and the cold and hot sources by sufficiently utilizing the characteristic of strong oxidation of the -OH purification factors, thereby achieving the purposes of energy saving and high efficiency.

The invention relates to a multi-ejector parallel type solar ejecting refrigeration unit which utilizes solar energy to supply cold air, which comprises a solar hot-water loop, an ejecting refrigerant loop and an air conditioner water loop. The unit solves the problems that the prior ejecting refrigeration system is only provided with an ejector, the structural dimension of the ejector is fixed and the efficiency of an ejector system is drastically declined directly because operation condition is derivated from design condition. The unit is arranged between a generator and a condenser, and is provided with two or more than two ejectors with different structural dimensions in parallel. The multiple ejectors can meet high-efficiency operation of variable working conditions; and the unit can automatically or manually switch to a proper ejector for working according to solar radiation or weather changing conditions, further ensure that the system operates in refrigeration season with high efficiency, can improve the operation efficiency of the solar ejector system, and realize the aim of supplying the cold air with high efficiency and reasonability, thereby improving the utilization rate of solar energy, saving energy, relieving the pressure of electricity grid at the peak time, and improving the light-heat utilization efficiency.

The embodiment of the invention discloses a method and a device used for controlling an air conditioner and the air conditioner, pertaining to the technical field of control technology for air conditioners. Therefore, service lifetime of the air conditioner is increased while the experience effect of a user is improved. The air conditioner comprises a compressor having working frequency of f and an inner fan. The method for controlling the air conditioner provided by the embodiment comprises following steps: acquiring first value of a pre-set index parameter, comprising machine current and / or rate of change for machine current, of the air conditioner when the air conditioner is in the working condition of excess load; unloading loads of the air conditioner if the first value is greater than the pre-set threshold value; acquiring second value for the index parameter after unloading loads of the air conditioner; and controlling the air conditioner to stably operate according to second value and f when the second value is smaller than or equal to the pre-set threshold value. When the loads of the air conditioner are unloaded, working frequency of the compressor is f.

A rocket engine combustion chamber wall operates as a heat exchange section through which the fuel passes in a heat exchange relationship. By first passing the fuel through a deoxygenator system fuel stabilization unit (FSU), oxygen is selectively removed such that the heat sink capacity of the fuel is increased which translates into an increased impulse power rocket engine.

The invention discloses a cascade lithium bromide refrigeration and cold storage system which comprises a lithium bromide absorption refrigeration system containing a lithium bromide absorption cooling water loop and a lithium bromide refrigerant loop, an electric refrigeration system containing an electric refrigeration cooling water loop and an electric refrigeration refrigerant loop, and an ice storage system containing a refrigerant loop. Both a first evaporator and a plate heat exchanger form separately connected circulating chilled water loops respectively with a chilled water pump, a water separator, terminal equipment and a water collector shared by the two, wherein the terminal equipment is connected with an air conditioner that needs cooling. The cascade lithium bromide refrigeration and cold storage system can not only provide efficient and reliable cooling, but also can make and store ice when demand for electricity is low, thus enabling efficient ice making to be realized. Furthermore, the system has extremely low power consumption and can effectively save energy and cost.

The invention discloses a polymeric kettle and a thermal withdrawal mode thereof. The polymeric kettle comprises a kettle body and a stirrer arranged in the kettle body, an outer cycle condensing system used for enhancing thermal withdrawal of the polymeric kettle is also arranged outside the kettle body, the volume of the kettle body is 12m<3> to 70m<3>, and the height-diameter ratio of the kettle body is 2 to 3. The thermal withdrawal mode comprises the following steps: propylene steam released from a gas outlet of the upper end of the polymeric kettle is condensed by the outer cycle condensing system at the outer side of the polymeric kettle; and the condensed liquid phase and gas phase flow back to the polymeric kettle under the action of the deadweight and the circulating fan. The invention utilizes the outer cycle condensing system to solve the problems of large scale of the polymeric kettle and insufficient thermal withdrawal capacity for producing copolymer polypropylene in a batch bulk method, the large scale of the polymeric kettle is ensured to be viable, single kettle output and product quality are both enhanced, the stirring and thermal withdrawal properties of the polymeric kettle are enhanced, the production capacity of the polymeric kettle, the single kettle output and the product quality are all greatly enhanced, the production capacity is especially enhanced when an efficient catalyst is used, and product added value and economic benefits are increased.

An energy storage unit for storing electrical energy comprises a plurality of stacked flat cells, each having protruding electrodes. A cooling body of the energy storage unit is heat-conductively connected, at least in sections, to the flat cells. The cooling body at least partially consists of a plastic material and has openings through which the electrodes extend.

The invention relates to a traveling-wave thermo-acoustic heat engine (refrigerator). A double-drive stirling traveling-wave refrigerator is characterized by including a first vibration exciter (1), a first thermo-acoustic refrigeration element (3), a ring-shaped channel housing (4), a second thermo-acoustic refrigeration element (6) and a second vibration exciter (8), wherein a ring-shaped traveling-wave transmitting passage (5) is arranged inside the ring-shaped channel housing (4), the first vibration exciter (1) is arranged at the first port of the ring-shaped channel housing (4), the second vibration exciter (8) is disposed at the second port of the ring-shaped channel housing (4), the first thermo-acoustic refrigeration element (3) and the second thermo-acoustic refrigeration element (6) are respectively distributed inside the ring-shaped traveling-wave transmitting passage (5), one end close to the first vibration exciter (1) of the first thermo-acoustic refrigeration element (3) is a hot end heat exchanger (9), and one end close to the second vibration exciter of the second thermo-acoustic refrigeration element (6) is a hot end heat exchanger. The double-drive stirling traveling-wave refrigerator has the advantages of simple structure and high efficiency, which can realize double objects cooling and single object cooling.

The invention discloses a control method for an air conditioning device, which comprises a starting step, a detecting step and a converting step. The starting step is to switch a control module to enable an air supply motor to run at a full-automatic air speed, a strong automatic air speed, a medium automatic air speed and a weak automatic air speed; the detecting step is to obtain an indoor temperature by detecting a cold room; the converting step is to compare the indoor temperature with a set temperature and convert the operation of the air supply motor into the full-automatic air speed respectively from the strong automatic air speed, the medium automatic air speed and the weak automatic air speed when the indoor temperature is not more than the set temperature; and the control module is used for comparing the indoor temperature with the set temperature and automatically converting the air speed of the air supply motor, thereby achieving the effects of improving room cooling effect, saving energy consumption and lower noises.

A turbine blade for a turbine engine having an impingement cooling system in at least the trailing edge of the turbine blade. The cooling system may include one or more first impingement ribs positioned generally parallel to the trailing edge and impingement ribs positioned obliquely relative to the first impingement ribs forming one or more triangular cavities. The impingement ribs may include orifices for allowing cooling gases to flow through the triangular cavities and be exhausted through the trailing edge of the turbine blade. The orifices in the second and third impingement ribs may be positioned obliquely relative to the an outer wall.

The invention relates to a radiation and heat exchange ceiling board and an air conditioner comprising the same for overcoming the defect that dewing easily occurs in the radiation and heat exchange ceiling board and a ceiling board type air conditioner in the prior art. The radiation and heat exchange ceiling board comprises a metallic ceiling board and a heat exchange coiled tube, wherein the heat exchange coiled tube is arranged above the metallic ceiling board. The radiation and heat exchange ceiling board is characterized in that: the heat exchange coiled tube is close to but not in contact with the metallic ceiling plate, and a heat insulating material layer is covered above the heat exchange coiled tube. The air conditioner comprising the radiation and heat exchange ceiling board comprises a heat pump system and a water circulation system, and is characterized in that: the water circulation system comprises a plurality of heat exchange ceiling boards; and the heat exchange coiled tubes of the heat exchange ceiling boards are connected to a water circulation loop of the water circulation system. When the radiation and heat exchange ceiling board is in use, dewing does not occur easily; and the ceiling board type air conditioner assembled by the radiation and heat exchange ceiling boards has the advantages of muting, energy saving and no dewing, and has wide promotion prospect.

The invention relates to a filling type low-temperature logistic system which comprises a low-temperature logistic vehicle and filling stations, wherein the low-temperature logistic vehicle can be driven to all places; the filling station are respectively arranged at all the places; and the low-temperature logistic vehicle generates the temperature-reducing cooling effect by enabling cooling circulatory liquid which is prefilled into a cold accumulating groove to flow through a circulating pipeline to surround a low-temperature compartment. After the cooling circulatory liquid is returned to the filling stations, the filling stations can recycle the cooling circulatory liquid from the cold accumulating groove of the low-temperature logistic vehicle and refill the cooling circulatory liquid to the cold accumulating groove after cooling the cooling circulatory liquid by a freezing device. The filling stations can carry out the refrigerating operation of the freezing device in an off-peak electric charge valuation time interval. Accordingly, the invention has the advantages of low cost, easy maintenance and great reduction of noise, and can save the refrigerating electric charge and reduce the vehicle engine idling and the consumption of fuel so as to decrease the emission of carbon dioxide.

In the invention, a throttle device in the air conditioner refrigeration circuit is set in the room unit. A section of a high-pressure copper pipe in the front of the throttler is immersed into a condensed water holding tray of the room unit and is cooled to increase the super cooling degree of the condenser, so as to increase the refrigerating output.

The invention provides an independently controllable automobile air-conditioning system with double evaporators and a control method of the automobile air-conditioning system. Energy conservation and emission reduction are realized while automobile internal comfort is guaranteed, and good economic benefit is realized. The automobile air-conditioning system with the double evaporators comprises a compressor, a condenser, a liquid storage dryer and an air-conditioning controller, the compressor, the condenser and the liquid storage dryer are successively serially connected via a pipeline, the liquid storage dryer is connected with two branches via two branched pipelines, one of the two branches is connected with a front electromagnetic valve, a front expansion valve and a front evaporator, the other branch is connected with a rear electromagnetic valve, a rear expansion valve and a rear evaporator, the front evaporator and the rear evaporator are connected with the compressor via a pressure balance device, and the front electromagnetic valve, the rear electromagnetic valve and the compressor are controlled by the air-conditioning controller. The air-conditioning system comprises the two evaporators, is high in refrigerating output and fast in cooling, can keep fine automobile internal comfort, saves energy and has good economic benefit. Operation of the two evaporators is controlled independently.

The invention discloses a rapid cooling type aircraft ground air conditioning unit and a control method of the rapid cooling type aircraft ground air conditioning unit. The highest cooling speed and the largest cold quantity input improve the rapid cooling and cold supplying capacity of the aircraft ground air conditioning unit, processed fresh air with a certain flow, cleanliness, proper temperature and high hydrostatic pressure is provided rapidly for an aircraft, the fresh air is fed to a cabin of the aircraft through a special air feeding hose, the fastest and best cooling effect is achieved for the cabin of the aircraft which stops at an aircraft boarding bridge for a short time, physiological requirements of staff in the cabin of the aircraft are met, high comfort level is achieved, the cooling requirements of precision devices in the cabin are met, a comfortable environment is provided for the staff in the cabin and aircraft operators, the metal state of the aircraft operators is improved, and the safety of driving the aircraft is improved. Meanwhile, fuel consumption produced when the aircraft waits on the ground is reduced, the service life of a self-matched expensive air conditioning system of the aircraft is prolonged, the pollution to air environment of an airport is reduced, and high economic and social benefits are achieved.

The invention provides a refrigerator door. The refrigerator door comprises accommodating space and a handle, wherein the accommodating space is positioned on the top of the refrigerator door; the handle is positioned in the accommodating space; the accommodating space is recessed from outside to inside; the handle is made of metal and comprises a handheld portion and a wrapping portion; the handheld portion is fixed on the outer side of the accommodating space; and the wrapping portion extends from the bottom of the handheld portion to the top of the refrigerator door and partially wraps the top of the refrigerator door. The refrigerator door has the advantages that condensation caused by uneven heat conduction of the handle is eliminated, the attractiveness of the refrigerator door is improved, and the grade of the refrigerator door is increased.

A cooling system includes a fan assembly that is rotated to move air in a primary path through a housing. The fan assembly includes a hub and a plurality of spaced reinforcing ribs that establish channels between a motor casing and the interior of the hub. A heat sink assembly is axially spaced from a hub bottom to define an air cavity that is in communication with a gap. The hub includes a tube that defines an air passage to establish communication with the cavity. A plurality of air vanes extend in a spiral path from the hub bottom and into the air cavity to move air through the air passage and create turbulence over the heat sink assembly. The air vanes move the air over the heat sink assembly and through the air passage to establish communication between the channels and the air cavity.

The invention discloses an air suction silencer and a compressor, which are used in the compressor field. The air suction silencer comprises a casing, wherein an air inlet and an air outlet are arranged on the casing, the air inlet is arranged on the side wall of the casing to avoid the top end of the casing, and oil leakage holes of the casing are arranged at the bottom of the casing. A guide pipe is connected between the air inlet and the air outlet, and the bottom pipe wall of the guide pipe is provided with an oil leakage hole of the guide pipe. The compressor, including the suction silencer described above. By arranging the guide pipe, the bottom pipe wall of the guide pipe is provided with the oil leakage holes of the guide pipe, and the bottom of the casing is provided with the oilleakage hole of the casing. When liquid lubricating oil enters the air inlet of the silencer, the silencer can separate the sucked lubricating oil and discharge the lubricating oil outside the silencer, thereby ensuring that liquid impact can be effectively avoided, and reducing or avoiding the adverse influence of the liquid impact on the compressor. At the same time, the air inlet avoids the topend of the casing, so that the temperature of the refrigerant sucked through the air inlet is lower, and the cooling capacity and the efficiency of the compressor are improved.

The invention discloses an olefin polymerization reactor. The reactor comprises a polymerization kettle body, a stirring device, a feeding port and an overflowing port, wherein the polymerization kettle body is composed of a reaction segment, an enlargement segment, and a connection segment located between the reaction segment and the enlargement segment; the stirring device is arranged at the center inside the polymerization kettle body, is used for stirring raw materials in the kettle, and is composed of a transmission device, a stirring shaft and a stirring turbine which are sequentially connected; the feeding port is arranged on the side wall of the reaction segment of the polymerization kettle body and is used for adding solvent, catalyst and the like; and the overflowing port is used for discharging the slurry and controlling the liquid level in the kettle. By using the reactor, the entrainment can be effectively reduced.

The invention discloses a compressed air cold conveying cooling system for a mine and a compressed air cold conveying cooling method. The compressed air cold conveying cooling system is formed by sequentially connecting an air compressor, a natural cold source subsystem, a manual cold source subsystem, a compressed air injection and air supply device through a compressed air conveying pipeline, wherein the air compressor, the natural cold source subsystem and the manual cold source subsystem are arranged on the ground, and the compressed air injection and air supply device is arranged on an underground mine working surface. The natural cold source subsystem is a water cycle cooling passage connected by a first level cooling tower and a first level cooling sprinkling chamber through a pipeline for pre-cooling compressed air. The manual cold source subsystem is water cycle cooling passage sequentially connected by a second level cooling tower, a second level sprinkling chamber and a refrigerating unit through the pipeline through the pipeline for manually cooling the compressed air. Due to the fact that natural cold source is utilized to conduct pre-cooling on the compressed air, refrigeration load of manual refrigeration equipment is greatly reduced, in winter or a transition season, the manual cooling system does not even need to be operated, and then operating cost of the compressed air cold conveying cooling system is greatly reduced.

The invention belongs to the field of chemical engineering and provides a slurry bed reactor for producing ethylene by using acetylene selective hydrogenation. A gas distributor is arranged below the slurry bed reactor and is connected with a gas inlet; multiple groups of finger tubes are arranged above the gas distributor and are perpendicular to the horizontal surface; each group of finger tubes comprises multiple heat exchange tubes of which the tops are connected with one another, and the spacing between every two heat exchange tubes is equal; a gas-liquid separator is arranged below the gas outlet of the slurry bed reactor; and a condenser is arranged below the gas-liquid separator. The invention also provides a system by applying the slurry bed reactor. According to the equipment provided by the invention, the problems that the production amount of green oil is large, the cycle period of catalysts is short and temperature runaway of the reactor is easily caused in the fixed bed reactor in the ethylene production reaction based on acetylene selective hydrogenation are well solved, and the problems that loss of catalysts and difficulty in dust removal are caused due to violent collisions among the catalyst particles and that the heat exchange mechanism and the reactor are severely worn due to abrasive actions of solid particles are also solved.

The invention discloses a refrigeration device. The refrigeration system has an energy saving operation mode performing: a first action in which a compressor (11) and an internal fan (16) are driven while the cooling capacity of an evaporator (14) is regulated; a second action in which, when the blow-off-side air temperature in a cold storage is kept at a set value in the first action, the cooling capacity of the evaporator (14) is increased to lower the blow-off-side air temperature to a lower limit temperature of a desired temperature range containing the set value and the compressor (11) and the internal fan (16) are then stopped; and a third action in which, when the blow-off-side air temperature after the second action rises to an upper limit temperature of the desired temperature range, the first action is restarted. Furthermore, the energy saving operation mode is configured so that when the suction-side air temperature in the cold storage after the second action rises to a limit value, the internal fan (16) is activated at a lower air flow rate than in the first action.

The invention discloses a thermoconditional suit achieving cooling and heating, and belongs to the technical field of labor protection clothing. The thermoconditional suit achieving cooling and heating comprises an air compressor, a double-circuit vortex tube and a thermoconditional suit body. An air inlet nozzle is formed in one side wall of the double-circuit vortex tube, a vortex chamber is arranged on the edge in the tangential direction of the air inlet nozzle, a cold end tube is arranged on one side of the vortex chamber, and a hot end tube is arranged on the other side of the vortex chamber. A separating pore plate is located between the cold end tube and the vortex chamber, a hot end regulating valve is arranged at one end of the hot end tube, and an additional loop is arranged in the center of the hot end regulating valve. The air compressor is directly connected with a gas-liquid separator, the gas-liquid separator is connected with a dryer, the dryer is connected the hot end regulating valve through a hose and then connected with the double-circuit vortex tube, and the hot end tube of the double-circuit vortex tube is connected with an exhaust guide pipe in the thermoconditional suit body. The thermoconditional suit is ingenious in design, safe to use, easy to operate, quite convenient to carry, easy to clean, low in cost and capable of meeting use needs, and a good work effect is achieved.

In a vehicle air conditioner, even in a case where an air outlet mode is set in which an air outlet switching damper opens a defroster opening so as to blow air from the defroster opening toward an inner surface of a window glass of a vehicle, the air outlet switching damper is controlled to close the defroster opening when a target air temperature TAO is lower than an outside air temperature TAM. Thus, the vehicle air conditioner prevents a fogging of an outer surface of the window glass without decreasing a temperature comfort in a vehicle compartment.