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43results about How to "Increase the amount of refrigerant" patented technology
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Air conditioner device and control method thereof
InactiveCN107152819AGood defrosting effectImprove efficiencyCorrosion preventionRefrigeration componentsRefrigerantEngineering
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Low refrigerant charging amount heat pump device and control method thereof
InactiveCN107036322AAvoid low inspiratory pressureReduce suction pressureMechanical apparatusFluid circulation arrangementSolenoid valveProcess engineering
The invention discloses a low refrigerant charging amount heat pump device and a control method thereof. The device comprises a compressor, a compressor refrigerant gas outlet is sequentially connected with an indoor heat exchanger, a throttling device and an outdoor heat exchanger through a four-way reversing valve, an outlet of the outdoor heat exchanger is connected with an inlet of a liquid storage device through the four-way reversing valve, an outlet of the liquid storage device is connected with an inlet of the compressor, and the device further comprises a bypass pipeline; an inlet of the bypass pipeline is located between the compressor and the four-way reversing valve, an outlet of the bypass pipeline is located between the four-way reversing valve and the liquid storage device or located on the side or bottom of a shell of the liquid storage device, and a bypass electromagnetic valve is located on the bypass pipeline; under the heating condition, when the device stably runs, a refrigerant exhausted out of the compressor flows into the indoor heat exchanger through the four-way reversing valve and then flows back to the compressor through the throttling device, the outdoor heat exchanger, the four-way reversing valve and the liquid storage device, and a heating cycle is formed; and under the refrigerating condition, stable running is opposite to the heating cycle flow path. The control method of the device is further provided. In the cold starting process, the problem that a large number of refrigerants are gathered in the liquid storage device and the compressor, and consequently the pressure of an air inlet of the compressor is too low is solved.
Owner:XI AN JIAOTONG UNIV
Heat recovery external unit system and air conditioner system
PendingCN107178833AAvoid throttlingReduce heat transfer areaEnergy recovery in ventilation and heatingMechanical apparatusOutdoor temperatureEngineering
The invention discloses a heat recovery external unit system and an air conditioner system. The heat recovery external unit system comprises a compressor (1), a high-pressure air pipe (2), a first branch (5), a second branch (6) and a third branch (7); the first branch (5), the second branch (6) and the third branch (7) are arranged in parallel; a first outdoor heat exchanger (8) is arranged on the first branch (5); a second outdoor heat exchanger (9) is arranged on the second branch (6); and when the air conditioner system is positioned in a low temperature refrigeration mode where the outdoor temperature is lower than a first preset temperature, or is positioned in a high temperature heating mode where the outdoor environment temperature is higher than a second preset temperature, one of the first branch (5) and the second branch (6) is connected and the other one is disconnected, and the third branch (7) communicates with the high-pressure air pipe (2), wherein the first preset temperature is lower than the second preset temperature. According to the heat recovery external unit system, a situation that rapid refrigeration is realized in a low temperature environment or rapid heating is realized in a high temperature environment can be ensured, and the use comfort of an air conditioner is improved.
Owner:GREE ELECTRIC APPLIANCES INC OF ZHUHAI
Evaporator
InactiveCN101713605AIncrease exhaust temperatureAvoid performance degradationEvaporators/condensersStationary conduit assembliesEngineeringEvaporator
Owner:KEIHIN THERMAL TECH CORP
Air conditioning system for motor vehicles
ActiveUS20180281564A1Avoid sudden changesIncrease the amount of refrigerantAir-treating devicesMechanical apparatusAutomobile air conditioningEngineering
An air conditioning system for motor vehicles includes a compressor, a condenser, a plurality of air conditioning units connected in parallel with each other with respect to the compressor and the condenser, and a flow rate control unit configured to, when a specific one of the air conditioning units is additionally turned on or is turned off, prevent occurrence of a sudden change in refrigerant amount in the remaining air conditioning units.
Owner:HANON SYST
Refrigerator
ActiveCN104613697AImprove cooling efficiencyPrevents reduction in evaporation efficiencyDomestic refrigeratorsCompression machines with several condensersEvaporationEngineering
A refrigerator is provided that may include at least one compressor that compresses a refrigerant, a condenser that condenses the refrigerant compressed in the at least one compressor, a refrigerant tube that guides the refrigerant condensed in the condenser, a plurality of evaporation passages, in which expansion devices may be respectively disposed, the plurality of evaporation passages branching from the refrigerant tube, a flow adjuster disposed in the refrigerant tube to supply the refrigerant into at least one evaporation passage of the plurality of evaporation passages, a plurality of evaporators, respectively, connected to the plurality of evaporation passages to evaporate the refrigerant decompressed in the plurality of expansion devices, and a liquid refrigerant supply device disposed at an outlet-side of the condenser to separate a liquid refrigerant of the refrigerant heat-exchanged in the condenser, thereby supplying the liquid refrigerant into the flow adjuster.
Owner:LG ELECTRONICS INC
Refrigerator and control method
ActiveCN104613696AEffective simultaneous coolingMinimize temperature deviationCompression machines with non-reversible cycleDomestic refrigeratorsEngineeringRefrigerant
Provided is a refrigerator (10) and a method for controlling the same. The refrigerator (10) includes a compressor (111, 115) compressing a refrigerant, a condenser (120) condensing the refrigerant compressed in the compressor (111, 115), a refrigerant tube (100) guiding the refrigerant condensed in the condenser (120), a flow adjustment part (130) coupled to the refrigerant tube (100) to divide the refrigerant into a plurality of refrigerant passages (101, 103, 105), a plurality of expansion devices (141, 143, 145) respectivley disposed in the plurality of refrigerant passages (101, 103, 105) to decompress the refrigerant condensed in the condenser (120), a plurality of evaporators (150, 160) evaporating the refrigerant decompressed in the plurality of expansion devices (141, 143, 145), and a supercooling heat exchanger (500) disposed at an outlet-side of the condenser (120) to supercool the refrigerant. The refrigerant supercooled in the supercooling heat exchanger (500) is introduced into the flow adjustment part (130).
Owner:LG ELECTRONICS INC
Control method of heat pump system
PendingCN111854056AImprove the heat absorption effectCoil temperature increaseMechanical apparatusSpace heating and ventilation safety systemsThermodynamicsProcess engineering
The invention provides a control method of a heat pump system. The control method comprises the steps that operation parameters of the heat pump system are obtained; whether a control condition for delaying frosting is met or not is judged; and when the control condition for delaying frosting is met, the opening degree of a first throttling device and / or the opening degree of a second throttling device are / is controlled to be increased. According to the control method of the heat pump system, the frosting period of the heat pump system can be prolonged, the indoor continuous heat supply time is prolonged, and the indoor heat comfort is improved.
Owner:GREE ELECTRIC APPLIANCES INC +1
Thermal insulation and noise reduction cylinder of compressor
InactiveCN105508251AImprove volumetric efficiencyIncrease the compression ratioRotary/oscillating piston pump componentsLiquid fuel engine componentsThermal insulationEngineering
The invention relates to the field of compressor technical equipment, in particular to a thermal insulation and noise reduction cylinder of a compressor. The cylinder comprises a cylinder body which is provided with a compression cavity, a gas inlet hole communicated with the compression cavity, a slide piece groove communicated with the compression cavity. The cylinder further comprises a thermal insulation and noise reduction piece which is used for slowing down heat exchange between the compression cavity and the outside world and is arranged on the cylinder body. According to the cylinder, the compression cavity of the cylinder of the compressor is isolated through the thermal insulation and noise reduction piece, heat exchange between the compression cavity and a shell of the compressor is avoided, and therefore heat in the high-temperature area in the shell of the compressor is effectively prevented from penetrating through the cylinder body to be transmitted to the compression cavity, it is also avoided that heat of a high-temperature cavity is transmitted into the shell of the compressor, it is avoided that refrigerant is heated and expanded before being compressed by a piston, and the overall performance of the compressor is improved. The thermal insulation and noise reduction piece can effectively prevent noise in the compression cavity from being transmitted outwards, and noise of the compressor is reduced.
Owner:å½èŠ±ä¸½
Control method for air conditioner and air conditioner
ActiveCN109489195AAvoid condensationAvoid blowing waterMechanical apparatusCondensate preventionEngineeringIndoor air
The invention belongs to the technical field of air conditioners, and aims to solve the problem that air conditioner condensation of an existing air conditioner cannot be solved completely by increasing the speed of an indoor fan. The invention provides a control method for an air conditioner and the air conditioner. The control method for the air conditioner comprises the steps that a dew point temperature of indoor air and a coil temperature of an indoor heat exchanger of the air conditioner are acquired; and refrigerant quantity in a refrigerant circulation system of the air conditioner isselectively adjusted according to the dew point temperature of the indoor air and the coil temperature of the indoor heat exchanger. According to the control method for the air conditioner and the airconditioner, whether the air conditioner has condensation or has condensation risks or not can be judged according to the dew point temperature of the indoor air and the coil temperature of the indoor heat exchanger, so that the refrigerant quantity in the refrigerant circulation system of the air conditioner can be adjusted pertinently, the coil temperature of the indoor heat exchanger can be adjusted, condensation of the air conditioner can be avoided, that is, water blowing and dripping phenomena of the air conditioner can be avoided, indoor environment cannot be polluted, and user experience is improved.
Owner:WUHAN HAIER ELECTRONICS CO LTD
Freezing device
InactiveCN101449117AEliminate stockpilingReduce openingMechanical apparatusSpace heating and ventilation safety systemsEngineeringRefrigerant
Owner:DAIKIN IND LTD
Air conditioner system, heating control method and device thereof and machine-readable storage medium
ActiveCN107449191AIncrease the amount of refrigerantImprove heating effectSpace heating and ventilation safety systemsSpace heating and ventilation control systemsVapor–liquid separatorEngineering
The invention discloses an air conditioner system, a heating control method and device thereof and a machine-readable storage medium. The heating control method comprises the data obtaining step (S0) that the first superheat degree DSH1of refrigerants and the exhaust pressure P1 in an exhaust pipe of a compressor, the second superheat degree SSH2 of refrigerants in an exhaust pipe of a gas-liquid separator and the third superheat degree ACSH3 of refrigerants in a gas inlet pipe of the gas-liquid separator are obtained, and the gas-liquid separator liquid drainage step (S1) that when the exhaust pressure P1 is within the range of the first allowed exhaust pressure, the first superheat degree DSH1 is within the preset range of the first superheat degree, the second superheat degree SSH2 is smaller than a lower threshold value of the preset range of the second superheat degree and the third superheat degree ACSH3 is smaller than a lower threshold value of the preset range of the third superheat degree, parts of the refrigerants in the exhaust pipe of the compressor are divided to flow into the gas inlet pipe of the gas-liquid separator. According to the heating control method, the liquid refrigerants accumulated at the bottom of the gas-liquid separator can be exhausted timely, and the heating capability of the air conditioner system at the low temperature is improved.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
Cooling device
ActiveCN102109247ALittle influence of temperatureReduce the impactMechanical apparatusClimate change adaptationIntermediate heat exchangerGas cooler
The invention provides a cooling device which is provided with a separation recycling device with a supercritical pressure formed at a high-pressure side, can provide hot water by using waste heat, and enables high-efficient operation of a refrigeration cycle. The cooling device (R) of the invention is provided with a separation recycling device with a supercritical pressure formed at the high-pressure side; the cooling device (R) is provided with a waste heat recovery heat exchanger (70), and the waste heat recovery heat exchanger (70) is provided with a waste heat recovery medium flow path (70B) and a refrigerant flow path (70A); and the cooling device (R) allows the second refrigerant flow (main refrigerant flow towards an evaporator) which flows out from a gas cooler (46) and has not flowed into an intermediate heat exchanger (80) forming the separation recycling device to flow into the refrigerant flow path (70A) of the waste heat recovery heat exchanger (70).
Owner:SANYO ELECTRIC CO LTD
Air conditioner and its controlling method
InactiveCN1455203AEasy dischargeIncrease heatCompressorMechanical apparatusRefrigerantControl theory
An air conditioner and a method of controlling the air conditioner includes a variable capacity compressor being operated at a maximum capacity in a case of starting an operation of the compressor after an extended stoppage for a lengthy period of time longer than a preset reference time, thus increasing a flow rate of a circulated refrigerant during an initial stage of the operation and increasing a quantity of heat generated from the motor of the compressor to vaporize and forcibly discharge a remaining liquid refrigerant from the compressor during the initial stage. Therefore, the variable capacity compressor of the air conditioner does not require heaters conventionally used for heating the refrigerant during such a stoppage, and so easy designing and production of the compressor is achieved, in addition to a reduction in a production cost of the air conditioner. This air conditioner also accomplishes a reduction in a maintenance cost thereof.
Owner:SAMSUNG ELECTRONICS CO LTD
Solar double-adsorption-bed and enhanced mass recovery continuous circulation refrigerating system
PendingCN111947344ATake advantage ofReduce workloadClimate change adaptationFluid circulation arrangementThermodynamicsAdsorption refrigeration
The invention discloses a solar double-adsorption-bed and enhanced mass recovery continuous circulation refrigerating system. The system comprises a water bath type adsorption refrigerating system, adirect heating type adsorption refrigerating system and a solar heat storage system. One end of the water bath type adsorption refrigerating system communicates with the direct heating type adsorptionrefrigerating system, and the other end communicates with the solar heat storage system. According to the system, the utilization rate of solar energy can be effectively improved, the workload of a solar heat collector is reduced, and the heat collection area of the heat collector is effectively reduced, so that the cost is reduced, day-and-night continuous refrigeration cycle can be realized, the quantity of refrigerants participating in the cycle is greatly increased through double-bed mass recovery, enhanced mass recovery and enhanced desorption, and the refrigerating efficiency is effectively improved.
Owner:YUNNAN NORMAL UNIV
Method and device for dissolving partial overload in air conditioner
InactiveCN1955597AImprove cooling effectIncrease the amount of refrigerantMechanical apparatusSpace heating and ventilation safety systemsIndustrial engineeringEvaporator
Owner:LG ELECTRONICS INC
Reagent refrigeration device and refrigeration method
PendingCN113654289ACool evenlyExtended service lifeLighting and heating apparatusDomestic refrigeratorsCool storageEngineering
The invention discloses a reagent refrigeration device and a refrigeration method, and belongs to the technical field of refrigeration. According to the reagent refrigeration device, a reagent bin and a refrigerating medium box are connected through a pipeline to form a circulation loop, the reagent bin is provided with an interlayer and a flow channel, and the refrigerating medium box is used for providing and storing a refrigerating medium; and the refrigeration device is used for refrigerating the refrigerating medium flowing through the interlayer and the flow channel, so that the reagent bin is refrigerated, a large amount of refrigerating medium is stored in the refrigerating medium box, the amount of the refrigerating medium in the whole refrigerating process is increased, and the refrigerating effect is improved.
Owner:ZYBIO INC
Vehicle air conditioner
PendingCN111770845ASmall volumeImprove reliabilityAir-treating devicesElectric devicesElectrical batteryBattery cell
The invention provides a vehicle air conditioner which prevents reduction in the oil circulation rate in a cooling circuit when adjusting the battery temperature and which can prevent reduction in compressor reliability. A battery temperature adjustment device 61 comprises a refrigerant-heat medium heat exchanger 64, branch piping 72 which extends from a branch member B2 to the refrigerant-heat medium heat exchanger, and an auxiliary expansion valve 73 which is provided in the branch piping and which is for reducing pressure of the refrigerant flowing into the refrigerant-heat medium heat exchanger. An in-cabin expansion valve 8 is arranged in refrigerant piping 13B, nearer to the branching member B2 than to the heat absorber 9, and the auxiliary expansion valve 73 is arranged in the branching piping 72, nearer to the branching member B2 than to the refrigerant-heat medium heat exchanger.
Owner:SANDEN CORP
A suction structure of a refrigeration compressor
ActiveCN104675707BIncrease the amount of refrigerantReduce noiseRotary/oscillating piston pump componentsLiquid fuel engine componentsRefrigeration compressorEngineering
Owner:JIAXIPERA COMPRESSOR
Air Conditioning System
ActiveCN105299947BImprove performanceImprove operational reliabilityMechanical apparatusFluid circulation arrangementVapor–liquid separatorEngineering
Owner:MIDEA GRP CO LTD +1
Air conditioning system and its heating control method, device and machine-readable storage medium
ActiveCN107449191BIncrease the amount of refrigerantImprove heating effectMechanical apparatusSpace heating and ventilation safety systemsVapor–liquid separatorLiquid state
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
Cooling device
ActiveCN102109247BLittle influence of temperatureAccelerate evaporationMechanical apparatusClimate change adaptationIntermediate heat exchangerGas cooler
Owner:SANYO ELECTRIC CO LTD
air conditioner
ActiveCN111164360BReduce the amount presentContainment leakMechanical apparatusSpace heating and ventilation safety systemsRefrigerant reclamationAir conditioning
Owner:MITSUBISHI ELECTRIC CORP
refrigerator
ActiveCN104613697BImprove cooling efficiencyPrevents reduction in evaporation efficiencyCompression machines with several condensersDomestic refrigeratorsEvaporationEngineering
Owner:LG ELECTRONICS INC
Air conditioner and its control method
ActiveCN105091423BReduce generationUniform temperatureMechanical apparatusCondensate preventionPlate heat exchangerEngineering
Owner:GREE ELECTRIC APPLIANCES INC
Control method and control device of air conditioner, computer readable storage medium and air conditioner
InactiveCN110595124AIncrease the amount of refrigerantThere will be no reduction in cooling capacityRefrigeration safety arrangementEngineeringRefrigeration
The invention provides a control method and control device of an air conditioner, a computer readable storage medium and the air conditioner. The control method of the air conditioner comprises the following steps: when the air conditioner is in a refrigeration mode, and after the air conditioner receives a shutdown command, a first electromagnetic two-way valve in a first refrigerant flow path iscontrolled to be closed, wherein the first refrigerant flow path includes a refrigerant outlet of an outdoor heat exchanger, the first electromagnetic two-way valve and a refrigerant inlet of an indoor heat exchanger which are sequentially connected; after a compressor is controlled to continuously operate for preset time t1, a second electromagnetic two-way valve in a second refrigerant flow path is controlled to be closed, wherein the second refrigerant flow path includes a refrigerant outlet of the indoor heat exchanger, the second electromagnetic two-way valve and a refrigerant inlet of the outdoor heat exchanger which are sequentially connected; and the air conditioner is controlled to stop after the compressor stops running.
Owner:NINGBO AUX ELECTRIC +1
One drag multiple air conditioner, its control method and storage medium
ActiveCN107560072BLarge openingIncrease the amount of refrigerantMechanical apparatusProcess engineeringMechanical engineering
The invention discloses a control method of a multi-split air conditioner. The control method of the multi-split air conditioner comprises the following steps of (1) increasing the opening degree of an electronic expansion valve in an indoor unit not turned on so as to remove condensation on a heat exchanger of the indoor unit not turned on when detecting completion of defrosting or oil return; and (2) restoring the electronic expansion valve of the indoor unit not turned on to the initial opening degree after completion of condensation removing. The invention further discloses the multi-splitair conditioner and a storage medium. According to the technical scheme, after completion of defrosting or oil return, the amount of refrigerant going into the heat exchanger of the indoor unit not turned on is increased in the heating process so as to remove condensation on the heat exchanger of the indoor unit not turned on by increasing the opening degree of the electronic expansion valve in the indoor unit not turned on; accordingly, the outer surface of the heat exchanger of the indoor unit not turned on for a long term is kept dry without concentration in real time.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
Air conditioner, its control method, control device, and readable storage medium
ActiveCN109059334BReduce generationIncrease the amount of refrigerantMechanical apparatusCompression machines with reversible cycleFour-way valveSolenoid valve
Owner:TCL AIR CONDITIONER ZHONGSHAN CO LTD
Permanent magnet linear motor
PendingCN107911004AGood cooling effectInhibit body temperatureCooling/ventillation arrangementPropulsion systemsRefrigerantPrimary component
The invention discloses a permanent magnet linear motor. The permanent magnet linear motor comprises a primary assembly; the primary assembly comprises a machine body, primary iron cores, a pluralityof coil windings, cooling connectors and cooling flow channels; the multiple coil windings are in mutual connection and fixed on the primary iron cores; the primary iron cores are fixedly connected with the machine body and positioned in the machine body; the cooling connectors are fixed at one end of the machine body; the outer walls of the cooling flow channels are tightly attached to the primary iron cores and the multiple coil windings; the cooling flow channels comprise top cooling flow channels and side surface cooling flow channels; one ends of the side surface cooling flow channels areconnected with the top cooling flow channels while the other ends are connected with the cooling connectors; and the hole diameters of the cooling flow channels are larger than that of the cooling connectors. According to the permanent magnet linear motor, the cooling flow channels are tightly attached to the primary iron cores and the coil windings to directly cool a heat source, so that a goodeffect is realized; the hole diameters of the cooling flow channels are larger than that of the cooling connectors, so that the refrigerant amount in the cooling flow channels is increased, and machine body temperature rise is suppressed effectively; and in addition, the side surface cooling flow channels are matched with the top cooling flow channels, so that the volume of the refrigerant storedin the machine body is further enlarged.
Owner:GUANGZHOU HAOZHI ELECTROMECHANICAL
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