CN104501460A - Enthalpy-increasing low-temperature heat pump - Google Patents
Enthalpy-increasing low-temperature heat pump Download PDFInfo
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- CN104501460A CN104501460A CN201410810194.1A CN201410810194A CN104501460A CN 104501460 A CN104501460 A CN 104501460A CN 201410810194 A CN201410810194 A CN 201410810194A CN 104501460 A CN104501460 A CN 104501460A
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- vortex tube
- enthalpy
- magnetic valve
- condenser
- hot junction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- External Artificial Organs (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses an enthalpy-increasing low-temperature heat pump. The enthalpy-increasing low-temperature heat pump comprises an enthalpy-increasing compressor, a vortex tube, an evaporator, a condenser, a controller, a first temperature controller and a first pressure sensor; the exhaust hole of the enthalpy-increasing compressor is connected with the gas inlet of the condenser, the gas outlet of the condenser is connected with the gas inlet of the vortex tube, and the heat end of the vortex tube is connected with the gas supplying hole of the enthalpy-increasing compressor; the cold end of the vortex tube is connected with the gas inlet of the evaporator, and the exhaust hole of the evaporator is connected with the gas inlet of the enthalpy-increasing compressor; the firs temperature sensor is used for detecting the gas outlet temperature of the evaporator, and the first pressure sensor is used for detecting the gas outlet pressure of the evaporator; the vortex tube comprises a heat end electromagnetic valve, and the heat end electromagnetic valve is arranged at the heat end position of the vortex tube and used for controlling refrigerating coefficients of the vortex tube; the controller controls the open degree of the heat end electromagnetic valve according to signals of the first temperature sensor and the first pressure sensor. The enthalpy-increasing low-temperature heat pump reduces the irreversible loss of a system, improves the energy efficiency and heating capacity of a circulating system and saves energy.
Description
Technical field
The present invention relates to HVAC technical field, particularly a kind of increasing enthalpy hot pump in low temp.
Background technology
Tonifying Qi enthalpy increasing heat pump unit adopts the screw compressor of band auxilairy air intake to replace Conventional press, except the critical piece in the source pump of conventional air source, adds a subcooler.The workflow of tonifying Qi enthalpy increasing heat pump unit as shown in Figure 1, is divided into two-way from condenser sub-cooled liquid refrigerant out: main road is refrigerating circuit, and bypass is tonifying Qi loop.The refrigerant liquid of main road directly enters subcooler; The refrigerant liquid of bypass enters subcooler after expansion valve 2 reducing pressure by regulating flow, this two parts cold-producing medium is in subcooler after heat exchange, the cold-producing medium heat absorption of bypass is vaporizated into gaseous refrigerant and is sucked by compressor vapour injection mouth, the cold-producing medium of main road is by again excessively cold, after expansion valve 1 step-down, enter evaporimeter, sucked by compressor air suction mouth after vaporization in evaporimeter.Main road cold-producing medium mixes in compressor operating chamber with the cold-producing medium of bypass after one stage of compression, discharges compressor, enter condenser after compressing further, so forms complete circulation.
The compression process of tonifying Qi enthalpy increasing heat pump unit and accurate secondary compression heat pump unit, be made up of low-pressure stage compression process, tonifying Qi process and hiigh pressure stage compression process, the cold-producing medium of bypass is vaporizated into the refrigerant gas of low-temp low-pressure after subcooler, with main road refrigerant mixed, the temperature of main road cold-producing medium can be cooled, make accurate two-stage compression mistake
The initial temperature of journey is lower, the delivery temperature of compressor is controlled in a suitable scope; And at low temperature ring
Under border, the flow of main road cold-producing medium is on the low side, by filling into the saturated vapor of bypass cold-producing medium, increasing compressor flowrate, thus adding the refrigerant flow of whole system, improving the operating condition of unit, improve the heating capacity of unit.
Existing heat pump utilizes expansion valve reducing pressure by regulating flow, there is frictional dissipation during throttling, so entropy must increase after throttling, but enthalpy before and after throttling is constant.Restriction loss can be caused very large, and the efficiency of heat pump circulating system is low, and carry out heat exchange additionally by subcooler, heat exchange efficiency is low.When outdoor temperature is lower than 0 degree, the degree of superheat of evaporimeter system is low, and heating is low, and energy consumption is high.
Summary of the invention
In view of this, the present invention proposes a kind of increasing enthalpy hot pump in low temp, with the problem that the efficiency solving the circulatory system is low.
On the one hand, the invention provides a kind of increasing enthalpy hot pump in low temp, comprise and increase enthalpy compressor, vortex tube, evaporimeter, condenser, controller, the first temperature sensor, the first pressure sensor; Increase enthalpy exhaust outlet of compressor to be connected with condenser air inlet, condenser gas outlet is connected with vortex tube inlet end, and vortex tube hot junction is connected with increasing enthalpy compressor gas supplementing opening; Vortex tube cold junction is connected with evaporator air inlet, and evaporator discharge mouth is connected with increasing enthalpy compressor inlet; First temperature sensor is for detecting evaporimeter air outlet temperature, and the first pressure sensor is for detecting evaporimeter outlet pressure; Vortex tube comprises hot junction magnetic valve, and hot junction magnetic valve is arranged on position, vortex tube hot junction, for controlled vortex flow pipe coefficient of refrigerating performance; Controller, according to the first temperature sensor and the first pressure sensor signal, controls hot junction magnetic valve aperture.
Further, comprise magnetic valve group and the second temperature sensor, the second temperature sensor is for detecting vortex tube hot-side temperature; Magnetic valve group comprises the first state and the second state; In a first state, magnetic valve group is communicated with vortex tube hot junction and increases enthalpy compressor gas supplementing opening, and magnetic valve group cuts off vortex tube hot junction and condenser air inlet; In the second condition, magnetic valve group is cut off vortex tube hot junction and is increased enthalpy compressor gas supplementing opening, and magnetic valve group is communicated with vortex tube hot junction and condenser air inlet; Controller is according to the second temperature sensor signal, and Controlling solenoid valve group switches under the first state and the second state.
Further, when the temperature value that the second temperature sensor detects exceedes preset value, controller Controlling solenoid valve group switches to the second state; Otherwise controller Controlling solenoid valve group switches to the first state.
Further, magnetic valve group comprises the first magnetic valve and the second magnetic valve, and the first magnetic valve is in vortex tube hot junction and to increase between enthalpy compressor gas supplementing opening in pipeline; Second magnetic valve is between vortex tube hot junction and condenser air inlet in pipeline.
Further, comprise check valve, check valve to be arranged between vortex tube hot junction and condenser air inlet in pipeline.
Further, also comprise gas-liquid separator, gas-liquid separator is connected between condenser gas outlet and vortex tube air inlet in pipeline, and the liquid outlet of gas-liquid separator is connected with evaporator air inlet.
Further, between the liquid outlet and evaporator air inlet of gas-liquid separator, expansion valve is provided with in pipeline.
The invention provides a kind of increasing enthalpy hot pump in low temp, the high temperature and high pressure gas of condenser gas outlet is after vortex tube, expand in vortex tube after accelerating and be separated into the unequal two parts air-flow of stagnation temperature, the cold airflow that wherein temperature declines is discharged by vortex tube cold junction, and the thermal current that temperature raises is discharged by vortex tube hot junction.Decrease the irreversible loss of heat pump.Controller, according to the first temperature sensor and the first pressure sensor signal, calculates the evaporator outlet degree of superheat, controls hot junction magnetic valve aperture, thus changes cold junction flow and hot junction flow rate ratio.Controller can according to ambient temperature situation, the flexible modulation evaporator outlet degree of superheat.
In addition, take full advantage of the energy of isolated high temperature gas flow simultaneously, enter and increase enthalpy compressor gas supplementing opening, increase compressor air suction flow, thus add the refrigerant flow of whole system, improve the operating condition of heat pump, decrease compressor power consumption, improve the heating capacity of heat pump.When vortex tube hot junction flow reduces, when temperature is increased to predetermined range value, in order to reduce energy loss, vortex tube hot junction flow being introduced into condenser inlet, having saved the energy, improve the efficiency of the circulatory system.
Check valve can prevent exhaust outlet of compressor flow from flowing backward to vortex tube hot junction, and cause and flow into the minimizing of condenser flow, heating capacity declines.Gas-liquid separator is for preventing liquid refrigerant from causing liquid hit phenomenon to vortex tube.
The invention provides a kind of increasing enthalpy hot pump in low temp, decrease the irreversible loss of heat pump.Improve efficiency and the heating capacity of the circulatory system.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is that the present invention increases enthalpy hot pump in low temp structural representation;
Fig. 2 is that the present invention increases enthalpy hot pump in low temp control schematic diagram.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As depicted in figs. 1 and 2, the present invention is preferably a kind of increases enthalpy hot pump in low temp, comprises and increases enthalpy compressor 1, vortex tube 4, evaporimeter 5, condenser 2, controller, the first temperature sensor, the first pressure sensor; Increase enthalpy compressor 1 exhaust outlet to be connected with condenser 2 air inlet, condenser 2 gas outlet is connected with vortex tube 4 air inlet, and vortex tube 4 hot junction is connected with increasing enthalpy compressor 1 gas supplementing opening; Vortex tube 4 cold junction is connected with evaporimeter 5 air inlet, and evaporimeter 5 exhaust outlet is connected with increasing enthalpy compressor 1 air inlet.Vortex tube 4 comprises hot junction magnetic valve 6, and hot junction magnetic valve 6 is arranged on position, vortex tube 4 hot junction, for controlled vortex flow pipe 4 coefficient of refrigerating performance; Vortex tube 4 coefficient of refrigerating performance refers to that the air conditioning quantity that vortex tube 4 cold junction discharges accounts for the percent by volume inputting vortex tube 4 air inlet total amount, coefficient of refrigerating performance is higher, and cold airflow is larger, and cooling extent is less, the hot gas amount of vortex tube 4 hot junction release is fewer, and vortex tube 4 hot junction increasing extent of temperature is larger.Otherwise it is contrary.
As shown in Figure 2, the first temperature sensor is for detecting evaporimeter 5 air outlet temperature, and the first pressure sensor is for detecting evaporimeter 5 outlet pressure; Controller, according to the first temperature sensor and the first pressure sensor signal, calculates the evaporimeter 5 gas outlet degree of superheat, controls hot junction magnetic valve 6 aperture.The degree of superheat refers to the degree of refrigerant temperature higher than the saturation temperature under corresponding pressure.Hot junction magnetic valve 6 aperture is larger, and coefficient of refrigerating performance is higher, and cold airflow is larger, and cooling extent is less, and the hot gas amount of vortex tube 4 hot junction release is fewer, and vortex tube 4 hot junction increasing extent of temperature is larger.Otherwise it is contrary.
If in the winter time, ambient temperature is lower than 0 degree, controller, according to the first temperature sensor and the first pressure sensor signal, calculates the evaporimeter 5 gas outlet degree of superheat, and the evaporimeter 5 gas outlet degree of superheat is very low, controller controls hot junction magnetic valve 6 aperture and diminishes, coefficient of refrigerating performance is lower, and cold airflow diminishes, and cooling extent increases, the evaporimeter 5 gas outlet degree of superheat is raised, evaporimeter 5 is worked under saturation loading.The hot gas amount of vortex tube 4 hot junction release increases, and vortex tube 4 hot junction increasing extent of temperature reduces, and the flow in vortex tube 4 hot junction enters compressor gas supplementing opening, improves the heating capacity of compressor, decreases energy consumption of compressor.
If in summer, ambient temperature 30 degree, controller, according to the first temperature sensor and the first pressure sensor signal, calculates the evaporimeter 5 gas outlet degree of superheat, and the evaporimeter 5 gas outlet degree of superheat is very high, controller controls hot junction magnetic valve 6 aperture and becomes large, coefficient of refrigerating performance increases, and cold airflow increases, and cooling extent reduces, the evaporimeter 5 gas outlet degree of superheat is reduced, evaporimeter 5 is worked under saturation loading.The hot gas amount of vortex tube 4 hot junction release reduces, and vortex tube 4 hot junction increasing extent of temperature increases, and the flow in vortex tube 4 hot junction enters compressor gas supplementing opening, improves the heating capacity of compressor, decreases energy consumption of compressor.
In order to prevent the high temperature refrigerant in vortex tube 4 hot junction from entering compressor gas supplementing opening, causing compressor heat load to increase, damaging compressor and heat waste.The present invention preferably a kind of enthalpy hot pump in low temp that increases also comprises magnetic valve group and the second temperature sensor, and the second temperature sensor is for detecting vortex tube 4 hot-side temperature; Magnetic valve group comprises the first state and the second state; Magnetic valve group comprises the first magnetic valve 7 and the second magnetic valve 8, first magnetic valve 7 in vortex tube 4 hot junction and to increase between enthalpy compressor 1 gas supplementing opening in pipeline; Second magnetic valve 8 is between vortex tube 4 hot junction and condenser 2 air inlet in pipeline.In a first state, the first magnetic valve 7 obtains electric connection vortex tube 4 hot junction and increases enthalpy compressor 1 gas supplementing opening, and vortex tube 4 hot junction and condenser 2 air inlet are cut off in the second magnetic valve 8 power-off; In the second condition, the first magnetic valve 7 power-off is cut off vortex tube 4 hot junction and is increased enthalpy compressor 1 gas supplementing opening, and the second magnetic valve 8 obtains electric connection vortex tube 4 hot junction and condenser 2 air inlet; Controller is according to the second temperature sensor signal, and Controlling solenoid valve group switches under the first state and the second state.
If in summer, ambient temperature 30 degree, when the vortex tube 4 hot-side temperature value that the second temperature sensor detects exceedes preset value, controller Controlling solenoid valve group switches to the second state, the high temperature refrigerant in vortex tube 4 hot junction directly enters condenser 2 entrance, improve heating capacity, decrease the energy consumption of compressor; Otherwise controller Controlling solenoid valve group switches to the first state.
In order to prevent exhaust outlet of compressor flow from flowing backward to vortex tube 4 hot junction, cause and flow into the minimizing of condenser 2 flow, heating capacity declines.Between vortex tube 4 hot junction and condenser 2 air inlet, in pipeline, check valve 9 is installed.The liquid refrigerant exported to prevent condenser 2 causes liquid hit phenomenon to vortex tube 4.The present invention preferably a kind of enthalpy hot pump in low temp that increases also comprises gas-liquid separator 3, gas-liquid separator 3 to be connected between condenser 2 gas outlet and vortex tube 4 air inlet in pipeline, gas-liquid separator 3 import is connected with condenser 2 gas outlet, the gas vent of gas-liquid separator 3 is connected with vortex tube 4 air inlet, and the liquid outlet of gas-liquid separator 3 is connected with evaporimeter 5 air inlet.Expansion valve 10 is provided with in pipeline between the liquid outlet and evaporimeter 5 air inlet of gas-liquid separator 3.The cold-producing medium of the liquid outlet of gas-liquid separator 3 directly enters evaporimeter 5 air inlet after expansion valve 10.
The invention provides a kind of increasing enthalpy hot pump in low temp, by controller, hot junction magnetic valve 6, first temperature sensor, the first pressure sensor, control the aperture of hot junction magnetic valve 6 flexibly, reach controlled vortex flow pipe 4 coefficient of refrigerating performance, control accuracy is high, decreases the irreversible loss of heat pump, improves the operating condition of heat pump, decrease compressor power consumption, improve the heating capacity of heat pump.Save the energy, improve the efficiency of the circulatory system.By the second temperature sensor and magnetic valve group, improve the operating condition of heat pump, decrease compressor power consumption, improve the heating capacity of heat pump.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. increase an enthalpy hot pump in low temp, it is characterized in that, comprise and increase enthalpy compressor (1), vortex tube (4), evaporimeter (5), condenser (2), controller, the first temperature sensor, the first pressure sensor; Increase enthalpy compressor (1) exhaust outlet to be connected with condenser (2) air inlet, condenser (2) gas outlet is connected with vortex tube (4) inlet end, and vortex tube (4) hot junction is connected with increasing enthalpy compressor (1) gas supplementing opening; Vortex tube (4) cold junction is connected with evaporimeter (5) air inlet, and evaporimeter (5) exhaust outlet is connected with increasing enthalpy compressor (1) air inlet; First temperature sensor is for detecting evaporimeter (5) air outlet temperature, and the first pressure sensor is for detecting evaporimeter (5) outlet pressure; Vortex tube (4) comprises hot junction magnetic valve (6), and hot junction magnetic valve (6) is arranged on vortex tube (4) position, hot junction, for controlled vortex flow pipe (4) coefficient of refrigerating performance; Controller, according to the first temperature sensor and the first pressure sensor signal, controls hot junction magnetic valve (6) aperture.
2. increase enthalpy hot pump in low temp according to claim 1, it is characterized in that, comprise magnetic valve group and the second temperature sensor, the second temperature sensor is for detecting vortex tube (4) hot-side temperature; Magnetic valve group comprises the first state and the second state; In a first state, magnetic valve group is communicated with vortex tube (4) hot junction and increases enthalpy compressor (1) gas supplementing opening, and magnetic valve group cuts off vortex tube (4) hot junction and condenser (2) air inlet; In the second condition, magnetic valve group is cut off vortex tube (4) hot junction and is increased enthalpy compressor (1) gas supplementing opening, and magnetic valve group is communicated with vortex tube (4) hot junction and condenser (2) air inlet; Controller is according to the second temperature sensor signal, and Controlling solenoid valve group switches under the first state and the second state.
3. increase enthalpy hot pump in low temp according to claim 2, it is characterized in that, when the temperature value that the second temperature sensor detects exceedes preset value, controller Controlling solenoid valve group switches to the second state; Otherwise controller Controlling solenoid valve group switches to the first state.
4. increase enthalpy hot pump in low temp according to claim 2, it is characterized in that, magnetic valve group comprises the first magnetic valve (7) and the second magnetic valve (8), and the first magnetic valve (7) is arranged in vortex tube (4) hot junction and increases pipeline between enthalpy compressor (1) gas supplementing opening; Second magnetic valve (8) is arranged in pipeline between vortex tube (4) hot junction and condenser (2) air inlet.
5. increase enthalpy hot pump in low temp according to claim 2, it is characterized in that, comprise check valve (9), check valve (9) to be arranged between vortex tube (4) hot junction and condenser (2) air inlet in pipeline.
6. according to claim 1 to 5 any one, increase enthalpy hot pump in low temp, it is characterized in that, also comprise gas-liquid separator (3), gas-liquid separator (3) is connected between condenser (2) gas outlet and vortex tube (4) air inlet in pipeline, and the liquid outlet of gas-liquid separator (3) is connected with evaporimeter (5) air inlet.
7. increase enthalpy hot pump in low temp according to claim 6, it is characterized in that, between the liquid outlet and evaporimeter (5) air inlet of gas-liquid separator (3), be provided with expansion valve (10) in pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410810194.1A CN104501460B (en) | 2014-12-24 | 2014-12-24 | A kind of increasing enthalpy hot pump in low temp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410810194.1A CN104501460B (en) | 2014-12-24 | 2014-12-24 | A kind of increasing enthalpy hot pump in low temp |
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| CN104501460A true CN104501460A (en) | 2015-04-08 |
| CN104501460B CN104501460B (en) | 2017-03-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814120A (en) * | 2017-11-20 | 2019-05-28 | 福特全球技术公司 | Sensor module |
| CN111981648A (en) * | 2020-08-25 | 2020-11-24 | Tcl空调器(中山)有限公司 | Heating control method and device for air conditioner, air conditioner and readable storage medium |
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| CN101922801A (en) * | 2010-09-27 | 2010-12-22 | 江苏天舒电器有限公司 | Parallel-flow two-stage condensation heat pump water heater |
| CN202048721U (en) * | 2011-04-27 | 2011-11-23 | 浙江大学 | Heating device utilizing low grade heat source |
| CN102338496A (en) * | 2011-09-30 | 2012-02-01 | 浙江大学 | Multi-temperature-zone refrigeration system with vortex tube |
| CN202133173U (en) * | 2011-06-14 | 2012-02-01 | 浙江大学 | Auto-cascade system with vortex tube |
| CN203857705U (en) * | 2014-01-26 | 2014-10-01 | 天津商业大学 | Heat pump system using vto separate hot gas |
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2014
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Patent Citations (6)
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| CN101135503A (en) * | 2007-09-25 | 2008-03-05 | 西安交通大学 | High temperature heat pump system with vortex tube |
| CN101922801A (en) * | 2010-09-27 | 2010-12-22 | 江苏天舒电器有限公司 | Parallel-flow two-stage condensation heat pump water heater |
| CN202048721U (en) * | 2011-04-27 | 2011-11-23 | 浙江大学 | Heating device utilizing low grade heat source |
| CN202133173U (en) * | 2011-06-14 | 2012-02-01 | 浙江大学 | Auto-cascade system with vortex tube |
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| CN203857705U (en) * | 2014-01-26 | 2014-10-01 | 天津商业大学 | Heat pump system using vto separate hot gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109814120A (en) * | 2017-11-20 | 2019-05-28 | 福特全球技术公司 | Sensor module |
| CN111981648A (en) * | 2020-08-25 | 2020-11-24 | Tcl空调器(中山)有限公司 | Heating control method and device for air conditioner, air conditioner and readable storage medium |
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|---|---|
| CN104501460B (en) | 2017-03-15 |
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Effective date of registration: 20181107 Address after: 750000 2 Ning Ping Street, Desheng Industrial Park, Yinchuan, the Ningxia Hui Autonomous Region Patentee after: Yinchuan Industrial Science and technology development Limited by Share Ltd Address before: 430074 7-4-510, block seven, Guandong Technology Industrial Park, East Lake Development Zone, Wuhan, Hubei. Patentee before: WUHAN HAOTONG TECHNOLOGY CO., LTD. |
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