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33results about How to "No frosting" patented technology
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Mobile unpowered energy-saving food preservation box and preservation method
InactiveCN104567182ANo "frost" phenomenonReduce air volumeLighting and heating apparatusDomestic refrigeratorsCold chainFresh food
The invention discloses a mobile unpowered energy-saving food preservation box which comprises a box body, a gas cycle preservation system, a remote data monitoring and global positioning system and a solar power generation electric power storage system; the cooling capacity circulating, nano purification, enzymatic inactivation dormancy preservation technology is adopted, the energy-saving rate is high, the solar energy is used for generating and storing the power, so that the food preservation box has the function of remote movement, unpowered self-survival long-term preservation. The invention further discloses a preservation method of the mobile unpowered energy-saving food preservation box, the method can dynamically monitor, adjust and control the preservation parameter at real time according to the movement longitude and latitude of the food by pre-cooling treatment and cooling capacity nano purification preservation, the food is guaranteed at the best preservation state. The unpowered cold chain preservation of the perishable fresh food for long distance movement can be achieved through the preservation box and the preservation method and the commercial value is great.
Owner:李勋田
Fresh air conditioning system and control method thereof
PendingCN111140976ANo frostingEnergy recovery in ventilation and heatingMechanical apparatusFresh airEngineering
The invention relates to a fresh air conditioning system and a control method thereof. The fresh air conditioning system comprises a first main air duct, a second main air duct, a first heat exchangerand a second heat exchanger; the first main air duct is provided with a first air inlet and a second air inlet; the second main air duct is provided with a third air inlet and a fourth air inlet; thefirst air inlet and the third air inlet communicate with outdoor space; the second air inlet and the fourth air inlet communicate with indoor space; the first heat exchanger is used for exchanging heat with the first main air duct; the second heat exchanger is used for exchanging heat with the second main air duct; in the heating mode, one of the first heat exchanger and the second heat exchangeracts as a condenser, the other one acts as an evaporator, the main air duct for exchanging heat with the condenser acts as a fresh air duct, and the main air duct for exchanging heat with the evaporator acts as a return air duct; and in the heating mode, indoor return air enters the outdoor space from the return air duct and exchanges heat with the evaporator during the process of flowing throughthe return air duct, and since the temperature of the indoor return air is higher than the temperature of the outdoor space, the evaporator is not frosted, and the continuous heating without defrosting is realized.
Owner:GREE ELECTRIC APPLIANCES INC
LNG (Liquefied Natural Gas) air bath gasification device
ActiveCN103807601AInhibit frost formationNo frostingContainer filling methodsPressure vesselsFrostEngineering
The invention discloses an LNG (Liquefied Natural Gas) air bath gasification device which can effectively inhibit a frosting phenomenon of a gas inlet pipe opening. The LNG air bath gasification device comprises a plurality of gasification pipes which are connected in series; gas inlets of the gasification pipes are connected in series with a frost prevention pipe which is communicated with an LNG liquid inlet pipe; gasification pipe bodies and a frost prevention pipe body are arranged in parallel; the frost prevention pipe comprises an outer pipe and an inner pipe which are sleeved together; an LNG liquid inlet is arranged at one end of the inner pipe; a semispherical pipe cap is arranged at one end, which is far away from the liquid inlet, of the outer pipe; a sealing plate is arranged at one end of the liquid inlet and between the outer pipe and the inner pipe and is provided with a liquid outlet.
Owner:苏州聚慧邦专利运营有限公司
Heat exchange system for multi-refrigerating circuit refrigerator and refrigerator-disinfection cabinet all-in-one machine
InactiveCN101858663AUniform temperatureEasy to keep freshCompression machines with several evaporatorsHeatFrostBusiness efficiency
The invention discloses a heat exchange system for a multi-refrigerating circuit refrigerator and a refrigerator-disinfection cabinet all-in-one machine. The heat exchange system has the main characteristics that: an outlet end of a freezing chamber evaporator is connected with an inlet end of a refrigerating chamber evaporator through a freezing-refrigerating connection tube; the refrigerating chamber evaporator is placed in a anti-freezing fluid box; the outlet end of the freezing chamber evaporator is connected with a muffler through a freezing-return-air connection tube; a normally closed two-way valve is arranged on the freezing-return-air connection tube; the refrigerating chamber evaporator and the freezing chamber evaporator can be connected in parallel with two capillary tubes respectively; and a condenser is arranged at a position close to an inner liner of a disinfection cabinet. The heat exchange system can greatly reduce temperature difference change of a rear wall of an inner liner of a refrigerating chamber, can avoid frost formation in the refrigerating chamber evaporator, and can make the temperature in the refrigerating chamber more uniform, which are beneficial for keeping fruits and vegetables fresh; and the system can realize separate refrigeration of the refrigerating chamber, and can select the capillary tubes with greater flow to improve the energy efficiency ratio of a compressor.
Owner:凌建军
Low-temperature pump tank for LNG (liquefied natural gas) vehicle fueling station
InactiveCN103343879ANo frostingFreezing will not occurContainer filling methodsContainer discharging methodsFlangeLiquefied natural gas
The invention discloses a low-temperature pump tank for an LNG (liquefied natural gas) vehicle fueling station. The low-temperature pump tank comprises a pump tank body, wherein a blind flange is sealed on an upper opening of the pump tank body; a drain pipe is arranged in the middle of the blind flange; and the length of the end part of the drain pipe extending inside the pump tank body is 1 / 5 to 1 / 3 of height of the pump tank body. By adopting the low-temperature pump tank, the drain pipe extends inside the low-temperature pump tank, so that the blind flange of the pump tank does not generate the frosting phenomenon when the low-temperature liquid is pumped out through a low-temperature pump.
Owner:TIANJIN QIANGANG GAS EQUIP TECH
Heat pump system using evaporative cooling
ActiveCN110906481APrevent freezingIncrease concentrationMechanical apparatusHeat pumpsSolenoid valveSprayer
The invention discloses a heat pump system using evaporative cooling. The system involves a compressor, an indoor heat exchanger, an outdoor heat exchanger, a first throttle, a second throttle, a solenoid valve, a three-way regulating valve, a water pump, a sprayer, an evaporator for concentration, a crystallization separator and a four-way reversing valve, wherein the heat pump system outdoor heat exchanger uses the evaporative cooling technique, an ethylene glycol solution is sprayed on the outer surface of the heat exchanger, the evaporator for concentration is not operated when the systemis operated in the summer, and during winter operation, a refrigerant is in heat exchange with the sprayed ethylene glycol solution and outdoor air in the outdoor heat exchanger, the evaporator for concentration is used for cooling the ethylene glycol solution below a freezing temperature and realizing the improvement of concentration of the ethylene glycol solution together with the crystallization separator, so that the ethylene glycol solution participating in the heat exchange of the outdoor heat exchanger is not frozen. According to the system, the heat exchange efficiency of an outdoor evaporator in winter is improved, and the frosting phenomenon does not occur when the outdoor evaporator is operated in winter.
Owner:ZHEJIANG UNIV +1
Gas supply device
ActiveCN102639922AImprove securitySave energyVessel mounting detailsGas handling applicationsWater circulationProcess engineering
Provided is an economically advantageous and safe gas supply device which can stably supply compressed gas by reducing the pressure thereof. The gas supply device supplies the gas supplied from a compressed gas supply source (high-pressure gas container [11]) by reducing the pressure of said gas using a decompression means (pressure regulator [21 and 31]), wherein heat exchangers (22 and 32) for heating the aforementioned gas by exchanging the heat between the gas introduced to the decompression means and the hot water supplied from a hot-water supplying source (hot-water circulation unit [15]) are disposed on the upstream side in terms of the direction of gas flow on the decompression means, and the decompression means is provided with a hot-water flow path (53) for heating the decompression means using a portion of the hot water.
Owner:TAIYO NIPPON SANSO CORP
Face-to-face blowing type double-circulation air curtain unit
PendingCN108759270ABlock outflowPrevent intrusionLighting and heating apparatusAir currents for screeningCold airBlock effect
The invention provides a face-to-face blowing type double-circulation air curtain unit, and belongs to the technical field of refrigeration houses. The face-to-face blowing type double-circulation aircurtain unit comprises a first case and a second case which are oppositely arranged. A first fan and a third fan are arranged on the first case. A first opening communicating with an inner cavity ofthe first case is formed in the first case. A second fan is arranged on the second case. A second opening and a third opening which communicate with an inner cavity of the second case are formed in the second case. The first fan is opposite to the second opening. The second fan is opposite to the first opening. The third fan is opposite to the third opening. According to the face-to-face blowing type double-circulation air curtain unit, double circulation of air flow can be achieved, cyclically-flowing air can better prevent cold air in a refrigeration house from flowing out and prevent hot air outside the refrigeration house from entering the refrigeration house, and a better blocking effect is achieved; and the face-to-face blowing type double-circulation air curtain unit has a better heat insulation effect and can save more energy.
Owner:广州中臣丹德智能装备科技有限公司
Flowing water source type temperature-controllable pharmaceutical reaction device
ActiveCN112427004AImprove energy efficiencyStable operating conditionsHeat storage plantsChemical/physical/physico-chemical stationary reactorsWater sourceElectronic expansion valve
The invention relates to a pharmaceutical reaction device, particularly to a flowing water source type temperature-controllable pharmaceutical reaction device, which comprises a medicine reaction kettle, a first phase-change heat exchanger, a second phase-change heat exchanger, an electronic expansion valve, a four-way reversing valve and an inverter compressor. According to the invention, under the working condition of refrigeration / heating, the second phase-change heat exchanger continuously releases / absorbs heat into the water tank, the position where flowing water with heat / cold is used isjudged according to the water temperature detected by the third temperature sensor and the fourth temperature sensor, and in the process, the efficiency that the first phase-change heat exchanger provides corresponding cold / heat for the medicine reaction kettle is improved, flowing water from the high-temperature / low-temperature water outlet pipe in the used water tank can be recycled in different process links such as a sterilization preheating link or a cooling precooling link and the like for medicine manufacturing according to actual requirements, gradient utilization of energy is achieved, energy is saved, and the environment is protected.
Owner:EAST CHINA JIAOTONG UNIVERSITY
Gas or liquid ultrasonic purification device
PendingCN113599925ALess prone to cloggingLess prone to passivationDispersed particle filtrationMoving filtering element filtersFiberEngineering
The invention relates to a gas or liquid ultrasonic purification device which comprises a shell, fiber filter pipes, a hard net pipe, an internal support body and an ultrasonic vibration element, the shell is a shell with an input port, a purification output port and a pollution discharge output port, and the fiber filter pipes are arranged in the hard net pipe in a sleeved mode to form a composite filter pipe assembly. The inner support body is provided with an installation space, the composite filter pipe assembly is sleeved and stacked in the installation space in a penetrating mode, the inner support body is sleeved with the shell, and the ultrasonic vibration element is installed on the inner support body. High-frequency ultrasonic vibration energy generated by the ultrasonic vibration element is applied to the internal support body, is fed back to the hard net pipe and then acts on the fiber filter pipes, so that the fiber filter pipes generate high-frequency ultrasonic resonance and internal molecular motion, impurities in gas or liquid do not block capillary pores of the fiber filter pipes and are prevented from being blocked and passivated, the service life is prolonged, the quality and efficiency of filtration and purification are ensured, and the replacement frequency and loss of the fiber filter pipes are reduced.
Owner:唐腊辉
Gas-replenishing enthalpy-increasing air conditioner system and control method thereof
ActiveCN107238236AIncrease return air temperatureCooling load balanceMechanical apparatusCorrosion preventionEngineeringHeat exchanger
The invention discloses a gas-replenishing enthalpy-increasing air conditioner system and a control method of the gas-replenishing enthalpy-increasing air conditioner system. The gas-replenishing enthalpy-increasing air conditioner system comprises a compressor, an outdoor heat exchanger, a throttling device and an indoor heat exchanger which are connected together to form a refrigerant loop. The compressor is provided with a refrigerant suction inlet and a refrigerant discharge outlet. The refrigerant suction inlet of the compressor is connected with a bypass pipe. The outdoor heat exchanger is provided with a first flow path and a second flow path, wherein a refrigerant flows through the first flow path and the second flow path. The first flow path is connected between the refrigerant discharge outlet of the compressor and the throttling device. An inlet of the second flow path is connected with the refrigerant discharge outlet of the compressor. An outlet of the second flow path is connected with the throttling device and the bypass pipe through a valve assembly. The valve assembly is used for selectively enabling the second flow path to be cut off or communicate with the throttling device or the bypass pipe. Continuous refrigeration of the gas-replenishing enthalpy-increasing air conditioner system in the low-temperature environment is achieved, and therefore user experience is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
Refrigerating system
PendingCN106595139AGuaranteed uptimeAvoid the phenomenon that the return air pressure is too lowMechanical apparatusDomestic refrigeratorsGas compressorControl system
The invention discloses a refrigerating system. The refrigerating system comprises a refrigerating system body and an electric control system. The refrigerating system body comprises a constant-speed compressor, electromagnetic valves, two or more cold storage cabinets and throttling devices. The electric control system comprises electromagnetic valves, relays and temperature controllers. The one-to-more refrigerating mode that the constant-speed compressor is used for independently controlling the cold storage cabinets with different refrigerant quantity demands is adopted, the refrigerant supply requirement of the cold storage cabinet with the small refrigerant quantity demand can be met under the condition that the cold storage cabinet with the small refrigerant quantity demand is opened only, and the situation that the body of the constant-speed compressor is frosted due to incomplete indoor evaporation, and consequentially the life of the constant-speed compressor is shortened is avoided; and meanwhile, the return air quantity required when the constant-speed compressor operates can be provided, so that the heat exchange effects of all evaporators are brought into full play, energy consumption is reduced, and the energy saving effect is achieved.
Owner:宜昌市银岭冷冻设备有限公司
Manufacturing process of antibacterial plastic for storage interlayer of refrigerator
InactiveCN112625353AIncrease the relative molecular massNot easy to precipitateCell membranePolypropylene
The invention discloses a manufacturing process of antibacterial plastic for a storage interlayer of a refrigerator. The antibacterial plastic is prepared from the following raw materials in parts by weight: 80-100 parts of polypropylene resin, 30-50 parts of ethylene propylene diene monomer rubber, 5-8 parts of a dispersing agent, 8-10 parts of an antibacterial agent, 12-15 parts of frost-proof reinforcing liquid, 15-20 parts of epoxidized soybean oil and 5-8 parts of kaolin powder. The antibacterial agent can cause reduction of permeability of cell membranes, leakage of bacterial cell sap, denaturation of bacterial protein and prevention of bacterial metabolism so as to kill bacteria, meanwhile, the antibacterial agent is high in relative molecular mass and not easy to separate out from the surface of the interlayer, and the frost-proof reinforcing liquid can prevent the surface of the interlayer from frosting after the interlayer is used for a long time, so that the frosting phenomenon cannot happen on the surface, meanwhile, the surface contains a large number of imide structures, so that the reinforcing filler contains a large number of ether bonds, the toughness of the antibacterial plastic is further improved, and stored objects are prevented from scratching the partition plate and influencing normal use of the partition plate in the use process of the refrigerator.
Owner:卫寿辉
Resorcinol aldehyde resin formed by modification of olefin and aromatic hydrocarbon and production process thereof
The invention belongs to a raw material for chemical production, provides a modified resorcinol formaldehyde resin free of pollution and spray frost and small in internal resistance and a production process thereof, and discloses a resorcinol aldehyde resin formed by the modification of olefin and aromatic hydrocarbon. The resorcinol aldehyde resin is prepared from the following components in parts by weight: 22 to 25 parts of resorcinol, 10 to 11.5 parts of aldehydes, 5 to 6.5 parts of olefines, 5 to 6.5 parts of aromatic hydrocarbons, 0.2 to 0.8 part of vitriol, wherein after all the components have an alkylation reaction and a hydroxylation reaction, the resorcinol aldehyde resin is prepared.
Owner:SHANDONG ZHANHUA OSITER CHEM
Corrosion-and fire-resistant pipe system
InactiveCN1114781CImprove performanceHigh strengthHeat exhanger conduitsFire rescueCouplingSprinkler system
A corrosion-resistant and fire-resistant pipe system suitable for sprinkler systems and the like in the offshore industry and also on military and civilian seagoing vessels, and generally as sprinkler systems in official buildings and in industrial buildings. The pipe system is characterized in that the pipe system includes rigid and cold-formable pipe sections (10) that have one or more tubular rubber layers (11, 13, 15) and reinforcement layers (12, 14) that surround or embrace one or more of the tubular rubber layers (11, 13, 15). The reinforcement layers are comprised of wires or ribbons that have been wound, braided, knitted or formed in some other way so as to cross each other, wherein each of the wires or ribbons defines with the longitudinal axis of the pipe section a winding or spiraling angle that imparts the greatest possible strength to the reinforced, tubular rubber layers (11, 13, 15). In the present case, the system also includes branch connections (18) for connecting a pipe section (10) to another pipe section in a multi-path coupling.
Owner:TRELLEBORG VIKING AS
Air-conditioning system for supplementing air and increasing enthalpy and its control method
ActiveCN107238236BNo frostingReduce heat transfer areaMechanical apparatusCorrosion preventionEngineeringRefrigeration
The invention discloses an air-conditioning system for replenishing air and increasing enthalpy and a control method thereof. An air-conditioning system for supplementing air and increasing enthalpy, including a compressor connected together to form a refrigerant circuit, an outdoor heat exchanger, a throttling device and an indoor heat exchanger, the compressor has a refrigerant suction port and a refrigerant discharge port, and the refrigerant of the compressor The suction port is connected with a bypass pipe, and the outdoor heat exchanger is provided with a first flow path and a second flow path for the refrigerant to flow through. The first flow path is connected between the refrigerant discharge port of the compressor and the throttling device, and the second flow path The inlet of the flow path is connected to the refrigerant outlet of the compressor, and the outlet of the second flow path is respectively connected to the throttling device and the bypass pipe through the valve assembly. The valve assembly is used to selectively block the second flow path, or make the second flow path Connect throttling device or bypass pipe. Realize the continuous refrigeration of the air-enhancing air-conditioning system in a low-temperature environment to improve user experience.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
Utilization method of waste heat inside building and central air-conditioning system
ActiveCN113686003BRaise the evaporation temperatureImprove winter heating coefficient of performanceEnergy recovery in ventilation and heatingMechanical apparatusProcess engineeringMechanical engineering
The invention relates to a method for utilizing waste heat inside a building, comprising the steps of: arranging a first air heat exchanger in an inner area of an air conditioner, arranging a second air heat exchanger in an outer area of the air conditioner, and arranging a third air heat exchanger outdoors; A plurality of four-way reversing valves are used to connect the compressor with the first air heat exchanger, the second air heat exchanger and the third air heat exchanger; the conduction direction of each four-way reversing valve is regulated to recover the air in the inner area of the air conditioner. heat. A central air conditioning system is also provided, comprising a first air heat exchanger, a second air heat exchanger, a third air heat exchanger and four four-way reversing valves, each of which is connected to a compressor and an expansion valve. And the first air heat exchanger, the second air heat exchanger, and the third air heat exchanger. The present invention can meet the requirements of cooling in the inner area of the air conditioner and heating in the outer area of the air conditioner at the same time, recovering heat from the inner area of the air conditioner for heating the outer area of the air conditioner, and realizing energy heat recovery, wherein the interior of the building is the inner area of the air conditioner.
Owner:中冶南方武汉建筑设计有限公司
Gas supply device
ActiveCN102639922BCases to prevent liquefactionIncrease supplyVessel mounting detailsGas handling applicationsStable stateWarm water
Owner:NIPPON SANSO CORP
Imitation wood material and method of making the same
The invention discloses a wood-imitation material which comprises an outer sizing agent and in inner sizing agent, wherein the outer sizing agent comprises magnesium oxide, magnesium chloride, ferrous sulfate, aluminum sulfate, phosphoric acid, fly ash, silica fume, quartz grey, talcum powder, wood powder and sodium tripolyphosphate according the mass ratio of 10:9:0.05:0.05:0.05:1.5:0.5:0.5:0.5:0.1:0.05, and the inner sizing agent comprises magnesium oxide, magnesium chloride, ferrous sulfate, aluminum sulfate, phosphoric acid, fly ash, silica fume, quartz grey, talcum powder, sawdust and sodium tripolyphosphate according to the mass ratio of 10:9.0:0.05:0.05:0.05:1.5:0.5:0.5:0.5:0.1:0.05. The invention further discloses a manufacturing method for the wood-imitation material. The wood-imitation material disclosed by the invention is prevented from deformation, efflorescing, scumming, and whitening, is good in water resistance, and hardening body swelling or cracking does not appear.
Owner:方志江
A defrosting method based on a heat exchanger defrosting device
ActiveCN109780923BReduced risk of loss of heat transfer efficiencyReduce the temperatureCorrosion preventionHeat exchange apparatusWater vaporEngineering
Owner:AEROSPACE HIWING HARBIN TITANIUM IND
Heat exchanger with defrosting device
ActiveCN109780920AReduced risk of loss of heat transfer efficiencyReduce the temperatureCorrosion preventionHeat exchange apparatusPlate heat exchangerWater vapor
The invention provides a heat exchanger with a defrosting device. A plurality of dense tube bundle heat-exchange parts of the heat exchanger are connected in series and penetrate through the defrosting device longitudinally, a formaldehyde injection device of the defrosting device is in an annular cylinder shape and is fixedly connected with a bottom plate, a methanol absorption device is locatedinside of the formaldehyde injection device, first through holes are evenly distributed in the part, between the formaldehyde injection device and the methanol absorption device, of the bottom plate,and the dense tube bundle heat-exchange parts are longitudinally mounted between the annular formaldehyde injection device and the methanol absorption device and penetrate out of the circular throughholes of the bottom plate. The problem that a heat exchanger in the prior art is not provided with a matched defrosting device is solved, the heat exchanger with the defrosting device is provided, thedefrosting device is additionally arranged in the microchannel heat exchanger, and the temperature and the partial pressure of water vapor in air inside the heat exchanger are decreased through the volatility and mutual solubility of methanol liquid, so that the air passes through the heat exchanger quickly without frosting, and the risk that the loss of the heat-exchange efficiency is generateddue to frosting of the microchannel heat exchanger is reduced accordingly.
Owner:AEROSPACE HIWING HARBIN TITANIUM IND
A heat exchanger with a defrosting device
ActiveCN109780922BReduced risk of loss of heat transfer efficiencyReduce the temperatureCorrosion preventionHeat exchange apparatusWater vaporMechanical engineering
The present invention proposes a heat exchanger with a defrosting device. The heat exchange parts of multiple dense tube bundles of the device are connected in parallel and run through the defrosting device longitudinally. The formaldehyde injection device of the defrosting device is fixedly connected to the bottom plate in a ring shape. The methanol absorption device is located inside the formaldehyde injection device, and the part of the bottom plate between the formaldehyde injection device and the methanol absorption device is evenly distributed with through holes 1, and the heat exchange part of the dense tube bundle is installed longitudinally between the annular formaldehyde injection device and the methanol absorption device. And pass through the circular through hole of the bottom plate. It solves the problem that the heat exchanger in the prior art does not have a matching defrosting device, and provides a heat exchanger with a defrosting device. A defrosting device is added to the microchannel heat exchanger to utilize the volatilization of methanol liquid compatibility and miscibility, reduce the temperature and partial pressure of water vapor in the air inside the heat exchanger, so that the air passes through the heat exchanger quickly without frosting, thereby reducing the loss of heat exchange efficiency of the microchannel heat exchanger due to frosting risk.
Owner:AEROSPACE HIWING HARBIN TITANIUM IND
Novel rubber composition for automobile water pipe, preparation method and product thereof
Owner:NANJING ORIENTLEADER TECH CO LTD
Building internal waste heat utilization method and central air conditioning system
ActiveCN113686003ARaise the evaporation temperatureImprove winter heating coefficient of performanceEnergy recovery in ventilation and heatingMechanical apparatusThermodynamicsRefrigeration
The invention relates to a building internal waste heat utilization method. The building internal waste heat utilization method comprises the following steps that a first air heat exchanger is arranged in an air conditioner inner area, a second air heat exchanger is arranged in an air conditioner outer area, and a third air heat exchanger is arranged outdoors; the compressor communicates with the first air heat exchanger, the second air heat exchanger and the third air heat exchanger through a plurality of four-way reversing valves, and the conduction directions of all the four-way reversing valves are regulated and controlled to recycle heat in the inner area of the air conditioner, the invention further provides a central air conditioning system which comprises the first air heat exchanger, a second air-conditioning heat exchanger, the third air heat exchanger and four four-way reversing valves, and the four-way reversing valves communicate with the compressor, an expansion valve, the first air heat exchanger, the second air heat exchanger and the third air heat exchanger. According to the building internal waste heat utilization method and the central air conditioning system, the requirements for air conditioner inner area refrigeration and air conditioner outer area heating can be met at the same time, the heat is recovered from the air conditioner inner area for air conditioner outer area heating, energy heat recovery is achieved, and the interior of a building is the air conditioner inner area.
Owner:中冶南方武汉建筑设计有限公司
A heat exchanger with a defrosting device
ActiveCN109780920BReduced risk of loss of heat transfer efficiencyReduce the temperatureCorrosion preventionHeat exchange apparatusFrostPlate heat exchanger
The present invention proposes a heat exchanger with a defrosting device. The heat exchange parts of multiple dense tube bundles of the device are connected in series and run through the defrosting device longitudinally. The formaldehyde injection device of the defrosting device is fixedly connected to the bottom plate in a ring shape The methanol absorption device is located inside the formaldehyde injection device, and through holes 1 are uniformly distributed on the bottom plate between the formaldehyde injection device and the methanol absorption device. The dense tube bundle heat exchange part is installed longitudinally between the annular formaldehyde injection device and the methanol absorption device. And pass through the circular through hole of the bottom plate. It solves the problem that the heat exchanger in the prior art does not have a matching defrosting device, and provides a heat exchanger with a defrosting device. A defrosting device is added to the microchannel heat exchanger to utilize the volatilization of methanol liquid compatibility and miscibility, reduce the temperature and partial pressure of water vapor in the air inside the heat exchanger, so that the air passes through the heat exchanger quickly without frosting, thereby reducing the loss of heat exchange efficiency of the microchannel heat exchanger due to frosting risk.
Owner:AEROSPACE HIWING HARBIN TITANIUM IND
Defrosting device for dense heat exchanger
ActiveCN109780921AQuick frostingNo frostingCorrosion preventionHeat exchange apparatusFrostPlate heat exchanger
The invention provides a defrosting device for a dense heat exchanger. A bottom plate of the defrosting device is a circular plate provided with a circular through hole; an outer ring support plate islocated on the opposite side of the bottom plate, is in a ring shape, and has the same diameter as the bottom plate; a plurality of methanol injection pipes are fixed between the bottom plate and theouter ring support plates at equal intervals; an inner ring support plate is located inside the outer ring support plate, and a plurality of methanol absorption pipes are fixed between the bottom plate and the inner ring support plate; and first through holes which are evenly distributed are formed in the part, located between the outer ring support plate and the inner ring support plate, on thebottom plate. The defrosting device solves the problem that a defrosting device matched with the dense heat exchanger does not exist in the prior art, the defrosting device for the dense heat exchanger is provided, the volatility and mutual solubility of the methanol liquid are used for reducing the temperature and partial pressure of the water vapor in the air in the heat exchanger to enable theair to quickly pass through the heat exchanger without generating frost, and the risk of loss of heat exchange efficiency of a micro-channel heat exchanger due to frost formation is reduced.
Owner:AEROSPACE HIWING HARBIN TITANIUM IND
A heat pump system using evaporative cooling
ActiveCN110906481BPrevent freezingIncrease concentrationMechanical apparatusHeat pumpsSolenoid valveEngineering
The invention discloses a heat pump system using evaporative cooling. Including compressor, indoor heat exchanger, outdoor heat exchanger, first throttle valve, second throttle valve, solenoid valve, three-way regulating valve, water pump, sprayer, evaporator for concentration, crystal separator and four Through the reversing valve, the outdoor heat exchanger of the heat pump system uses evaporative cooling technology, and the outer surface of the heat exchanger is sprayed with ethylene glycol solution. When the system is running in summer, the evaporator for concentration does not work. Heat exchange with the sprayed ethylene glycol solution and outdoor air. The evaporator for concentration is responsible for cooling the ethylene glycol solution below the freezing temperature. Together with the crystallizer, the concentration of the ethylene glycol solution is increased to ensure participation in the outdoor exchange. The ethylene glycol solution exchanged by the heat exchanger does not freeze. The invention improves the heat exchange efficiency of the outdoor evaporator in winter, and the phenomenon of frosting does not occur during operation in winter.
Owner:ZHEJIANG UNIV +1
Jacket type energy-saving refrigeration house
PendingCN111141090ANo frostingImprove heat transfer efficiencyLighting and heating apparatusStationary refrigeration devicesMetallic materialsHeat conservation
The invention discloses a jacket type energy-saving refrigeration house. The jacket type energy-saving refrigeration house is characterized in that a mother warehouse system is a cavity defined by a heat preservation structure layer, a sub-warehouse system is a child warehouse heat conduction structure built in the heat preservation structure layer through metal materials with good heat conductionperformance, a gap exists between the child warehouse heat conduction structure and the heat preservation structure layer, the child warehouse heat conduction structure is a pentahedron without a bottom face, and an evaporator or an air cooler of a refrigerating system is arranged in an interlayer formed by the mother warehouse system and the sub-warehouse system. According to the jacket type energy-saving refrigeration house, the heat exchange efficiency of the evaporator is improved, meanwhile, defrosting does not need to be considered, and additional power consumption cannot be increased.
Owner:TIANJIN UNIV OF COMMERCE
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