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42results about How to "To achieve the purpose of defrosting" patented technology
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Defrosting control method for inverter refrigerator
ActiveCN102748917ATo achieve the purpose of defrostingLighting and heating apparatusDefrostingEngineeringRefrigerated temperature
The invention discloses a defrosting control method for an inverter refrigerator. According to the rotation speed of the inverter refrigerator, an evaporator temperature sensor, an indoor temperature sensor and an environmental temperature sensor, refrigerator controller software is used for detection and judgment, defrosting starting time is accurately determined, the defrosting process is timely finished, and the purposes of effective defrosting, preservation and energy consumption reduction are achieved.
Owner:CHANGHONG MEILING CO LTD
Double-heat source heat pump water heater with air source and water source
ActiveCN101476774AIncrease the COP valueAchieve water supplyFluid heatersHeat pumpsFour-way valveDouble tube
The invention discloses an air-water dual heat source heat pump water heater, which comprises a main machine, a heat-storage and preservation water tank, a controller, an environment temperature controller, a coil temperature sensor, a water tank temperature sensor, a high-water-level switch, a low-water-level switch, a target-flow switch, a water inflow electromagnetic valve, a circulating water pump, a compressor, a motor, an electronic expansion valve, a double-pipe evaporator circuit electromagnetic valve, a fin tube evaporator circuit electromagnetic valve, a circulating hot water pipe, a tube-in-tube condenser and a four-way valve, wherein the D port of the four-way valve is connected with the exhaust pipe of the compressor through a high-pressure switch, the C port of the four-way valve is connected with the upper part of a tube-in-tube condenser, the S port of the four-way valve is connected with the air intake of the compressor through a vapor liquid separator and a low-pressure switch, the E port of the four-way valve is connected with the upper part of a double-pipe evaporator and the upper part of a fin tube evaporator, and the tube-in-tube condenser forms a water cooled heat exchanger through a liquid container, a filter, the electronic expansion valve, an axial flow fan blade, a motor and the double-tube evaporator and forms a wind cooled heat exchanger through a fin tube evaporator. The water heater can be used for 24 hours each day all the year around in the north of China.
Owner:ZHEJIANG AMA & HIEN TECH
Four-way valve bypass defrosting device
ActiveCN101329129AGuaranteed reliabilityGuaranteed stabilityCorrosion preventionRefrigeration componentsVapor–liquid separatorFour-way valve
The invention discloses a bypass defrosting device with four-port valves, which comprises a compressor, a gas-liquid separator, a high-pressure reservoir, at least two four-port valves, at least two groups of heat exchanging components in a condensing side, and at least two groups of heat exchanging components at an air side. The first port of each four-port valve is connected with the vent of the compressor, and the second port of each four-port valve is connected with one end of each heat exchanging component at the condensing side, the other end of the heat exchanging component is connected with the high-pressure reservoir; one end of each heat exchanging component at the air side is connected with the high-pressure reservoir, the other end of each heat exchanging component at the air side is respectively connected with the third port of the corresponding four-port valve, the input end of the gas-liquid separator is connected with the fourth port of each four-port valve, and the output end of the gas-liquid separator is connected with the intakeport of the compressor. The bypass defrosting device with the four-port valves has small system pressure fluctuation during defrosting, higher reliability and stability, good defrosting effect, short defrosting time and simple structure, and can implement heating and defrosting at the same time.
Owner:ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT
Heat pump dryer system
InactiveCN107144123AIncrease refrigerant flowImprove efficiencyMechanical apparatusDrying gas arrangementsHeating systemEngineering
The invention discloses a heat pump dryer system. A heating system comprises an air injection enthalpy increasing compressor, a four-way reversing valve, a heating coiler, a thermostatic expansion valve, a refrigerating coiler and a gas-liquid separating device; an economizer system comprises a flash evaporator and a jetting electromagnetic valve; the dehumidification system comprises an electronic expansion valve, a dehumidification electromagnetic valve and a dehumidification coiler; a defrosting system is a singly-arranged defrosting electromagnetic valve; the flash evaporator and the electronic expansion valve are connected between the thermostatic expansion valve and the refrigerating coiler in series, the flash evaporator is arranged on the side close to the thermostatic expansion valve, and the flash evaporator is further connected to the input end of the enthalpy increasing compressor through the jetting electromagnetic valve; the dehumidification electromagnetic valve and the dehumidification coiler are connected to the two ends of the refrigerating coiler in parallel, and the dehumidification electromagnetic valve is arranged on one side close to the electronic expansion valve; and the dehumidification electromagnetic valve is connected to the two ends of the flash evaporator and the electronic expansion valve in parallel. By means of the heat pump dryer system, the compressor efficiency and the internal dehumidification and defrosting effects can be improved, the structure is simple and effective, and the heat pump dryer system is worthy of popularization.
Owner:HEFEI VANDRA REFRIGERATION TECH
Heat-pump water heater and defrosting control method
InactiveCN103344040ATo achieve the purpose of defrostingFaster defrost timeFluid heatersCorrosion preventionShunt DeviceWater flow
The invention discloses a heat-pump water heater. The heat-pump water heater comprises a compressor, a condenser, a throttling assembly, an evaporator, a water pumping device, a shunting device, a temperature detection device and a control device. One end of the water pumping device is connected with a water inlet pipe, the other end of the water pumping device is connected with a water inlet of the condenser, and the water pumping device is used for pumping water into the condenser. The inlet end of the shunting device is connected with a water outlet of the condenser, one outlet end of the shunting device is connected with a water outlet pipe, the other outlet end of the shunting device is correspondingly connected with a water inlet of the evaporator, and the shunting device is used for shunting water flowing out of the condenser. The temperature detection device is arranged in the position of an evaporator working medium inlet and used for detecting the temperature T of the position of the evaporator working medium inlet. The control device is connected with the temperature detection device and the shunting device and used for controlling shunting of the shunting device according to the temperature T, and therefore defrosting can be conducted. The invention further discloses a defrosting control method of the heat-pump water heater. The defrosting control method achieves the purpose of defrosting and will not hinder water heating of the heat-pump water heater.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
Defrosting heater of refrigerator
InactiveCN1584459ASimple structureReduce manufacturing costLighting and heating apparatusDefrostingElectric heatingCeramic coating
A defrosting heater for electric refrigerator consists of electric heating-wires, insulating casings with outer casings and ceramic coatings. The outer casings are made of high strength thermal conductive metals. The ceramic coatings are of far-infrared materials, so that they work in high efficiency, when the heater works, with simple structure, low cost and good corrosion-proof performance.
Owner:LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
Rotary electromagnetic heat pump system
InactiveCN103438615AAchieve heatingAchieve energy saving effectHeating and refrigeration combinationsElectromagnetic generatorFour-way valve
The invention relates to a rotary electromagnetic heat pump system which belongs to the electromechanical field and aims to solve the problem that a heat pump system in prior art has low heating efficiency in a low-temperature condition or a condition lacking of a low-temperature thermal source. The rotary electromagnetic heat pump system comprises a rotary electromagnetic generator, a solution heat exchanger, two throttling valves, a solution pump, an absorber, a four-way valve and two heat exchangers, wherein an outside gas inlet, an outside gas outlet, an outside medium inlet, an outside medium outlet, two working medium inlets and one working medium outlet are formed in the rotary electromagnetic generator; the rotary electromagnetic generator generates heat through rotation, so as to heat a working medium; the working medium enters the heat exchanger for heat exchange with an outside medium after being gasified and separated out, and enters the other heat exchanger for heat absorption from the outside medium after heat transmission to the outside medium; after the outside medium is cooled, a refrigerant is heated and enters the rotary electromagnetic generator after passing through the absorber and the solution heat exchanger, so as to be heated again. Moreover, the rotary electromagnetic generator also can be used for directly heating the outside medium. The rotary electromagnetic heat pump system provided by the invention is applicable to fields in need of heating and cooling of the outside medium.
Owner:HARBIN INST OF TECH
Electricity-heated defrosting evaporator
InactiveCN101059295ATo achieve the purpose of defrostingEvaporators/condensersCorrosion preventionElectricityEngineering
Disclosed is an electro thermal evaporator for realizing cold composition defrosting, which comprises an aluminum alloy flap tube, electric heating wires and a water collection disc, each of the flap tube is provided with a groove for mounting the electric heating wires and the water collection disc.
Owner:北京华能共发低温科技有限责任公司
Heat exchanging device
ActiveCN105180430AAffect the water effectTo achieve the purpose of defrostingFluid heatersVapor–liquid separatorFour-way valve
The invention discloses a heat exchanging device. The heat exchanging device comprises a compressor, a gas-liquid separator, a first proportional adjusting valve, a condenser, a four-way valve, an electronic expansion valve, an evaporator and a liquid storage tank. An exhaust pipe of the compressor is connected with an inlet of the first proportional adjusting valve through the gas-liquid separator. A first outlet of the first proportional adjusting valve is connected with a refrigerant inlet end of the condenser. A second outlet of the first proportional adjusting valve is connected with a refrigerant outlet end of the condenser. The four-way valve is provided with an exhaust end, a gas returning end, a condenser end and an evaporator end. The exhaust end is connected with the refrigerant outlet end of the condenser. The condenser end is connected with a refrigerant inlet end of the evaporator. The evaporator end is connected with a refrigerant outlet end of the evaporator. The gas returning end is connected with a gas returning pipe of the compressor through the liquid storage tank. According to the heat exchanging device, heating and defrosting are carried out at the same time.
Owner:TCL AIR CONDITIONER ZHONGSHAN CO LTD
Air-conditioning system with auxiliary defrosting system
InactiveCN102322713AImprove cooling effectTo achieve the purpose of defrostingCorrosion preventionRefrigeration componentsElectricityControl system
The invention discloses an air-conditioning system with an auxiliary defrosting system, which comprises a compressor, a condenser, a throttle valve, an evaporator, a steam-liquid separator, a four-way reverse valve and an energy storage tank, wherein energy storage media are contained inside the energy storage tank, the energy storage tank is covered on the outer annular wall of the compressor, the back part of the evaporator is also provided with a defrosting heat radiation device, the defrosting heat radiation device is communicated with the energy storage tank through an auxiliary pipeline, an auxiliary driving pump for driving the circulation of the energy storage media inside the energy gas storage tank is arranged on the auxiliary pipeline, and is electrically connected with a control system, and the control system controls the synchronous work with a defrosting system of the air-conditioning system per se. The air-conditioning system has the advantages that the defrosting speed can be accelerated, the defrosting efficiency is improved, and the defrosting is clean.
Owner:潘小强
Air-conditioner defrosting control method and device, air conditioner and computer readable storage medium
ActiveCN111895605ATo achieve the purpose of defrostingTake into account the experienceMechanical apparatusThermodynamicsProcess engineering
The invention provides an air-conditioner defrosting control method and device, an air conditioner and a computer readable storage medium, and relates to the technical field of air conditioners. The method comprises the steps that operation is sequentially executed N times, wherein the i-time operation comprises the substeps that the operating capability attenuation speed of the air conditioner ina heating mode is obtained; the air conditioner is controlled to switch from the heating mode to an i-time first defrosting mode if the operating capability attenuation speed is less than a preset speed; and after the i-time first defrosting mode is finished, the air conditioner is controlled to switch back to the heating mode from the i-time first defrosting mode, and N is an integer greater than or equal to 2, and 1<=i<=n.
Owner:GREE ELECTRIC APPLIANCES INC
Air conditioner control system and control method
ActiveCN109269040ATake advantage ofResolve frictionMechanical apparatusSpace heating and ventilation safety systemsControl systemEngineering
The invention provides an air conditioner control system and a control method, the air conditioner control system comprises a compressor (1), an indoor heat exchanger (2) and an outdoor heat exchanger(3), wherein a branch (4) is further formed on a pipeline between a high pressure exhaust end (11) of the compressor (1) and the indoor heat exchanger (2), a base plate heating module (5) is arrangedon the branch (4) and can heat an air conditioner base plate, and the other end of the branch (4) is connected back to a low pressure suction end (12) of the compressor. According to the air conditioner control system and the control method, a refrigerant can be used for deicing, the energy can be fully used, the energy efficiency is improved, power dissipation is reduced, energy conservation andemission reduction are realized, and the reliability problem is solved; the problem that ice is difficult to melt on the base plate under the extreme cold condition so that the fan blade and the iceblock are in friction can be solved, and the problems that the operation noise of the outer machine is larger and mechanical faults are easy to occur in the severe cold area are solved from the source.
Owner:GREE ELECTRIC APPLIANCES INC
Air-conditioning system of new energy automobile
PendingCN108032708AIncrease inspiratory pressureIncrease pressureAir-treating devicesVehicle heating/cooling devicesSolenoid valveNew energy
The invention discloses an air-conditioning system of a new energy automobile and belongs to the technical field of automotive air-conditioning systems. The air-conditioning system of the new energy automobile includes a refrigerating fluid circulation loop and a bypass; the refrigerating fluid circulation loop includes a compressor, a four-way reversing valve, an inner automotive heat exchanger and an outer automotive heat exchanger, a vent port of the compressor is connected with an inlet end of the four-way reversing valve, and the inner automotive heat exchanger and the outer automotive heat exchanger are successively connected between a first port and a second port of the four-way reversing valve through a pipeline and connected with an air suction port of the compressor through a third port of the four-way reversing valve; the bypass is in parallel connection with the compressor and is provided with a first solenoid valve and a bypass valve in sequence. On the premise of not changing a circulation pattern of the air-conditioning system, by arranging the bypass at the vent port of the compressor, a high-temperature high-pressure refrigerating fluid drained out from the vent port of the compressor is conveyed into the air suction port of the compressor through the bypass valve, and therefore the air suction pressure of the air suction port of the compressor is enhanced, sothat a purpose of defrosting is achieved.
Owner:JIANGSU JIAHE THERMAL SYST RADIATOR
Double-heat source heat pump water heater with air source and water source
ActiveCN101476774BIncrease the COP valueAchieve water supplyFluid heatersHeat pumpsDouble tubeFour-way valve
The invention discloses an air-water dual heat source heat pump water heater, which comprises a main machine, a heat-storage and preservation water tank, a controller, an environment temperature controller, a coil temperature sensor, a water tank temperature sensor, a high-water-level switch, a low-water-level switch, a target-flow switch, a water inflow electromagnetic valve, a circulating waterpump, a compressor, a motor, an electronic expansion valve, a double-pipe evaporator circuit electromagnetic valve, a fin tube evaporator circuit electromagnetic valve, a circulating hot water pipe, a tube-in-tube condenser and a four-way valve, wherein the D port of the four-way valve is connected with the exhaust pipe of the compressor through a high-pressure switch, the C port of the four-way valve is connected with the upper part of a tube-in-tube condenser, the S port of the four-way valve is connected with the air intake of the compressor through a vapor liquid separator and a low-pressure switch, the E port of the four-way valve is connected with the upper part of a double-pipe evaporator and the upper part of a fin tube evaporator, and the tube-in-tube condenser forms a water cooled heat exchanger through a liquid container, a filter, the electronic expansion valve, an axial flow fan blade, a motor and the double-tube evaporator and forms a wind cooled heat exchanger through afin tube evaporator. The water heater can be used for 24 hours each day all the year around in the north of China.
Owner:ZHEJIANG AMA & HIEN TECH
Automobile glass photovoltaic defrosting device
PendingCN108248550AGuaranteed heating powerAffect power generationTransparent/reflecting heating arrangementsVehicle cleaningElectricityProtective glasses
An automobile glass photovoltaic defrosting device involves sunroof glass, window glass, and rear windshield glass; each of the sunroof glass, the window glass and the rear windshield glass is composed of an inner protective glass layer, a photovoltaic glass layer, a heat-insulating glass layer, an electric heating wire layer and an outer protective glass layer which are stacked from inside to outside, a positive pole of the photovoltaic glass layer is electrically connected with a positive pole of an automobile battery through a rectifier diode, a negative pole of the photovoltaic glass layeris electrically connected with a chassis frame or a body assembly, a positive pole of the electric heating wire is electrically connected with a positive pole of the automobile battery, and a negative pole of the electric heating wire layer is electrically connected with the chassis frame or the body assembly. The automobile glass photovoltaic defrosting device can charge an automobile battery via photovoltaic power generation so as to perform heating defrosting via electricity of the automobile battery.
Owner:蚌埠富盈科技股份有限公司
Air source heat pump unit defrosting control method and air source heat pump
PendingCN114427694AReduce frostingSolve wasteHeat pumpsHeat recovery systemsThermodynamicsEngineering
A defrosting control method of an air source heat pump unit comprises the steps that when the air source heat pump unit conducts heating, the environment temperature T2 and the evaporation pressure P1 of the heat pump unit under the heating cycle are collected, the evaporation temperature T1 is obtained by calculating the collected evaporation pressure P1 through a programming formula, and a curvilinear equation f (delta T) with the difference value T = T2-T1 changing along with time is generated, and calculating the derivative of the curvilinear equation f (delta T), obtaining the variation trend of the difference value delta T between the evaporation temperature T1 and the environment temperature T2 according to the derivative calculation result, comparing according to the derivative calculation result, judging whether the air source heat pump needs to be defrosted or not, and defrosting by automatically adjusting the frequency of the variable-frequency compressor and the frequency of the variable-frequency fan. According to the defrosting control method provided by the invention, defrosting is carried out by adjusting the frequencies of the compressor and the fan in real time under the condition that the heating circulation direction is not changed, and the problems that energy is wasted, defrosting water is difficult to treat and comfort is affected are solved. The invention further provides an air source heat pump for realizing the method.
Owner:北能合创(北京)科技有限公司
Air-conditioning system with auxiliary defrosting system
InactiveCN102322714ADefrost quicklyImprove defrosting efficiencyCorrosion preventionRefrigeration componentsElectricityThrottle
The invention discloses an air-conditioning system with an auxiliary defrosting system, which comprises a compressor, a condenser, a throttle valve, an evaporator, a steam-liquid separator, a four-way reverse valve and an energy storage tank, wherein energy storage media are contained inside the energy storage tank, a pipeline arranged between an air outlet of the compressor and the four-way reversing valve passes through the energy storage media arranged inside the energy storage tank, a defrosting heat radiation device is also arranged at the back part of the evaporator and is communicated with the energy storage tank through an auxiliary pipeline, an auxiliary driving pump for driving the circulation of the energy storage media inside the energy gas storage tank is arranged on the auxiliary pipeline, and is electrically connected with a control system, the control system controls the synchronous work with a defrosting system of the air-conditioning system per se, and the energy storage tank is in a telescopic structure. The air-conditioning system has the advantages that the defrosting speed can be accelerated, the defrosting efficiency is improved, and the defrosting is clean.
Owner:潘小强
Low-temperature storage box and control method thereof
PendingCN113048686ATo achieve the purpose of defrostingTemperature effectLighting and heating apparatusDomestic refrigeratorsEngineeringMechanical engineering
The invention relates to the technical field of low-temperature storage equipment, and particularly provides a low-temperature storage box and a control method thereof. The low-temperature storage box comprises a box body, a refrigerating system is arranged in the box body and comprises an air duct structure, a first air duct and a second air duct are arranged in the air duct structure, a first evaporator, a first fan, a first cold storage device and a first heating device are arranged in the first air duct, and a second evaporator, a second fan, a second cold storage device and a second heating device are arranged in the second air duct. The first cold storage device is arranged between the first evaporator and storage space of the box body, and the first heating device is arranged close to the first evaporator. The second cold storage device is arranged between the second evaporator and the storage space of the box body, and the second heating device is arranged close to the second evaporator. The requirement that the temperature in the low-temperature storage box is basically constant during evaporator defrosting can be met.
Owner:ZHONGKE MEILING CRYOGENICS CO LTD
Heat exchange device, air conditioner and control method of heat exchange device
ActiveCN112781180AImprove heat transfer efficiencyImprove heating efficiencyMechanical apparatusCondensate preventionProcess engineeringControl switch
The invention relates to a heat exchange device, an air conditioner and a control method of the heat exchange device, and relates to the technical field of air conditioners. The heat exchange device comprises a heat transfer assembly and a control assembly, the heat transfer assembly comprises a first heat transfer part and a second heat transfer part, the first heat transfer part is connected with a compressor to absorb heat of the compressor, and the second heat transfer part is connected with a heat exchanger to transfer heat to the heat exchanger; and the control assembly comprises a control switch and a control circuit, and the control switch controls the control circuit to form an access so as to generate magnetic force, so that the first heat transfer part is in contact with the second heat transfer part. Through the method, waste heat of the compressor is used for defrosting, so that energy conservation and environment protection are achieved.
Owner:GREE ELECTRIC APPLIANCES INC OF ZHUHAI
Four-way valve bypass defrosting device
ActiveCN101329129BGuaranteed reliabilityGuaranteed stabilityCorrosion preventionRefrigeration componentsVapor–liquid separatorFour-way valve
The invention discloses a bypass defrosting device with four-port valves, which comprises a compressor, a gas-liquid separator, a high-pressure reservoir, at least two four-port valves, at least two groups of heat exchanging components in a condensing side, and at least two groups of heat exchanging components at an air side. The first port of each four-port valve is connected with the vent of the compressor, and the second port of each four-port valve is connected with one end of each heat exchanging component at the condensing side, the other end of the heat exchanging component is connected with the high-pressure reservoir; one end of each heat exchanging component at the air side is connected with the high-pressure reservoir, the other end of each heat exchanging component at the air side is respectively connected with the third port of the corresponding four-port valve, the input end of the gas-liquid separator is connected with the fourth port of each four-port valve, and the output end of the gas-liquid separator is connected with the intakeport of the compressor. The bypass defrosting device with the four-port valves has small system pressure fluctuation during defrosting,higher reliability and stability, good defrosting effect, short defrosting time and simple structure, and can implement heating and defrosting at the same time.
Owner:ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT
Refrigerating and freezing device with automatic defreezing function
InactiveCN111023668AReduce energy consumptionTo achieve the purpose of defrostingLighting and heating apparatusDomestic refrigeratorsDrive shaftElectric machine
The invention discloses a refrigerating and freezing device with an automatic defreezing function. The refrigerating and freezing device comprises a rack 1. A motor 11 is fixed to the bottom end of the rack 1. The tail end of the motor 11 is in power connection with a first rotating shaft 13 extending up and down. A first transmission groove allowing the first rotating shaft 13 to penetrate is formed in the middle of the rear end of the rack 1. An air blasting assembly for performing air blasting on freezing is arranged in the first transmission groove. The air blasting assembly comprises a first bevel gear 71 rotationally connected with the first rotating shaft 13. A second bevel gear 72 is rotationally mounted on the front side of the first bevel gear 71. A driving shaft 76 is fixedly mounted at the center of the second bevel gear 72. A first fixing block 74 is rotationally mounted on the outer portion of the front side of the driving shaft 76 through a bearing. When the device works, the freezing area can be blown and defreezed, meanwhile, a scraper can repeatedly clean the freezing area below a partition, the operation is simple, and the working efficiency is high.
Owner:三门督学制冷科技有限公司
A camera module and defrosting method
ActiveCN106973202BNo need to change the mechanical structureEliminate distractionsTelevision system detailsColor television detailsCamera moduleVoice coil
Owner:TRULY OPTO ELECTRONICS
A high temperature heat pump water heater
ActiveCN106016833BHigh control precisionImprove operational efficiencyMechanical apparatusHeat pumpsSolenoid valveCapillary Tubing
Owner:ZHEJIANG AMA & HIEN TECH
Refrigerating unit of mobile refrigeration house
PendingCN114111178AIncrease usage capacityPrecise positioningMechanical apparatusCorrosion preventionAutomatic controlGps positioning system
The invention discloses a mobile refrigeration house refrigerating unit which comprises an evaporation cavity, a condensation cavity, a compressor, an electrical part, a connecting pipeline and a three-way valve, an exhaust pipeline of the compressor is connected with the three-way valve, the evaporation cavity is located on the upper side of the unit, and the condensation cavity is located on the lower side of the unit. The all-external integrated design is adopted, the evaporator is directly installed outside the refrigeration house, only the air supply outlet and the air return inlet of the evaporation cavity are formed in the refrigeration house, the maximum distance between the air supply outlet and the refrigeration house is 19.5 cm, the refrigeration house space occupied by a refrigeration house unit is greatly reduced, and therefore the use capacity of the refrigeration house is increased; rapid and accurate positioning can be carried out by arranging a Beidou + GPS positioning system, remote monitoring operation can be carried out through a mobile phone terminal and a computer terminal, and a temperature controller and an Internet of Things module are used for controlling an air conditioning system, so that the functions of fresh-keeping / freezing dual-mode automatic control, refrigeration / heating automatic control and full-state digital display can be achieved.
Owner:天津新技术产业园区大远东制冷设备工程技术有限公司
Air-conditioner outdoor unit and air-conditioner
PendingCN108954564AImprove heat source utilizationGood heating and defrosting effectMechanical apparatusLighting and heating apparatusEngineeringHeating effect
The invention provides an air-conditioner outdoor unit and an air-conditioner. The air-conditioner outdoor unit comprises a heat exchanger (1), an infrared heater (2) and an infrared reflection substance, wherein the infrared heater (2) can radiate infrared waves to heat the heat exchanger (1) so as to heat and defrost the heat exchanger (1) when the heat exchanger (1) frosts, and the infrared reflection substance is arranged in the air-conditioner outdoor unit, and can carry out the reflection effect on the infrared rays. By means of the air-conditioner outdoor unit, the heat source utilization rate is high, the influence of air heat resistance is avoided, the infrared rays can be reflected to the surface of the heat exchanger again, the area, radiated by the infrared rays, of the heat exchanger is increased, the utilization rate of the infrared rays is increased, the heat exchanger heating effect is improved, and the problem of defrosting existing in the low-temperature heating process of an existing outdoor unit heat exchanger is effectively solved.
Owner:GREE ELECTRIC APPLIANCES INC OF ZHUHAI
A rotary electromagnetic heat pump system
InactiveCN103438615BAchieve heatingAchieve energy saving effectHeating and refrigeration combinationsElectromagnetic generatorFour-way valve
Owner:HARBIN INST OF TECH
Solar hot water efficient defrosting device
InactiveCN103557650BGuaranteed comfortEfficient defrostingSolar heat devicesCorrosion preventionEvaporationEngineering
The invention discloses an efficient defrosting device for solar hot water. The efficient defrosting device for the solar hot water comprises a solar thermal collector, a circulating pump, a heat accumulation water tank, a water pipe, defrosting heat exchange pipes, an evaporation coil pipe, hydrodynamic pistons, a double-shaft crank shaft and a fan; a plurality of defrosting heat exchange pipes are arranged on the front side of the evaporation coil pipe; the fan is arranged on the rear side of the evaporation coil pipe; upper ends of the defrosting heat exchange pipes are communicated with the bottom of the inner chamber of the heat accumulation water tank through the water pipe; the lower ends of the defrosting heat exchange pipes are closed; the hydrodynamic pistons are installed inside the defrosting heat exchange pipes; the lower portions of the hydrodynamic pistons are fixedly connected with the double-shaft crank shaft; the double-shaft crank shaft drives the hydrodynamic pistons to vertically move inside the defrosting heat exchange pipes. The efficient defrosting device for the solar hot water has the advantages of achieving efficient, rapid and energy saving defrosting, enabling a unit to have a heating function during defrosting and accordingly guaranteeing comfort of the indoor environment.
Owner:ZHEJIANG SCI-TECH UNIV
a transcritical co 2 Compound heat pump system
ActiveCN105222385BImprove cycle efficiencyReduce the temperatureMechanical apparatusHeat recovery systemsVapor–liquid separatorSolenoid valve
The invention discloses a transcritical CO 2 A composite heat pump system, including a first evaporator, a regenerator, a first compressor, a first gas cooler, a first expansion valve, a gas-liquid separator, a second compressor, a second gas cooler, and a second expansion valve and the second evaporator; using two sets of independent heat pump systems, using transcritical CO 2 The heat pump system heats the inlet water at 40-50°C to the outlet water temperature at 60-80°C; the invention adjusts the transcritical CO 2 Gas cooler outlet CO in heat pump 2 temperature to ensure that the heat pump system operates at the maximum heating energy efficiency ratio; the present invention introduces the gas-liquid separator and the regenerator into the transcritical CO 2 The heat pump system enables the heat pump cycle system to operate stably under wide operating conditions; in order to solve the problem of transcritical CO 2 The frosting phenomenon during the operation of the heat pump system, through the use of the solenoid valve, can reduce the impact on the compressor while realizing the automatic defrosting of the system.
Owner:XI AN JIAOTONG UNIV
Defrost assembly, air conditioning system and control method thereof
ActiveCN112413947BTo achieve the purpose of defrostingMechanical apparatusCorrosion preventionVapor–liquid separatorProcess engineering
The present application provides a defrosting assembly, an air conditioning system and a control method thereof. The defrosting assembly includes a bypass pipe, one end of which is communicated with the refrigerant pipeline, and the other end is communicated with the gas-liquid separator; a throttling device is arranged on the bypass pipe. By adding a bypass pipe on the outdoor unit assembly and arranging a throttling device on the bypass pipe, the outdoor unit assembly itself can complete the refrigeration cycle, form evaporation and heat absorption, and achieve the purpose of defrosting.
Owner:GREE ELECTRIC APPLIANCES INC
Defrosting assembly, air conditioning system and control method of air conditioning system
ActiveCN112413947ATo achieve the purpose of defrostingMechanical apparatusCorrosion preventionVapor–liquid separatorProcess engineering
The invention provides a defrosting assembly, an air conditioning system and a control method of the air conditioning system. The defrosting assembly comprises a bypass pipe and a throttling device, wherein one end of the bypass pipe communicates with a refrigerant pipeline, and the other end of the bypass pipe communicates with a gas-liquid separator; and the throttling device is arranged on thebypass pipe. The bypass pipe is additionally arranged on an outdoor unit assembly, and the throttling device is arranged on the bypass pipe, so that the outdoor unit assembly can complete refrigeration circulation, evaporation related heat absorption is formed, and the purpose of defrosting is achieved.
Owner:GREE ELECTRIC APPLIANCES INC
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