CN112984614A - Method and device for regulating and controlling supply and return water temperature of heating system by using Carnot cooler - Google Patents
Method and device for regulating and controlling supply and return water temperature of heating system by using Carnot cooler Download PDFInfo
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- CN112984614A CN112984614A CN202110238647.8A CN202110238647A CN112984614A CN 112984614 A CN112984614 A CN 112984614A CN 202110238647 A CN202110238647 A CN 202110238647A CN 112984614 A CN112984614 A CN 112984614A
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- temperature
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- pressure sensor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/046—Pressure sensors
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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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
- F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
Abstract
The invention discloses a method and a device for regulating and controlling the temperature of supply water and return water of a heating system by using a Carnot cooler, wherein the method comprises the following steps: (1) the water supply temperature is set to 45 ℃, the return water temperature is set to 35 ℃, and the return water temperature difference is 10 ℃; (2) arranging a Carnot cooler, a circulating water pump, a flowmeter, a valve, a filter, a temperature sensor, a pressure sensor and a controller at a user; (3) the water supply temperature of the heating users is increased to 55 ℃, and the heating effect of the radiator users is improved. The device for regulating and controlling the return water temperature of the heating system comprises a Carnot cooler, a controller, a circulating water pump, a pressure sensor and a temperature sensor, wherein the high-temperature heat exchanger of the Carnot cooler is assembled on a water supply pipeline of the heating system, the low-temperature heat exchanger of the Carnot cooler is assembled on a return water pipeline of the heating system, and the circulating water pump is assembled on the water supply pipeline of the heating system, and has the advantages that: the return water temperature of a heating user is increased by about 8 ℃, and the heating effect of the user is improved.
Description
Technical Field
The invention relates to a method and a device for regulating and controlling the temperature of supply water and return water of a heating system, in particular to a method and a device for regulating and controlling the temperature of supply water and return water of a heating system by using a Carnot cooler.
Background
At present, a heating system sends hot water generated by a heat source or a heat exchange station into a heating user, and the heating user radiates the heat into the room through an indoor heat radiation facility to ensure that the room maintains a certain temperature in winter so as to meet the living and production requirements of people.
When the heating users adopt different terminal heat dissipation facilities, such as radiators and floor radiation heating, the required hot water temperature is different. The actual water supply temperature for heating by the urban central heating radiator is generally 55 ℃, the temperature difference between the supplied water and the returned water is 10-15 ℃, the actual water supply temperature for radiant floor heating is generally 45 ℃, and the temperature difference between the supplied water and the returned water is 10 ℃.
If the heating system operates according to the water supply temperature of the heating of the radiator, the water supply temperature is higher for the floor radiation heating system, which causes the overhigh indoor temperature of the user and the energy waste. If the heating system operates according to the water supply temperature of the floor radiation heating, the operation requirement of the radiator heating cannot be met, and the indoor temperature of a heating user cannot meet the use requirement of the user.
About 70% of town heating users are floor heating, about 30% of town heating users are radiator heating, and for energy-saving consideration, the centralized heating system operates according to the temperature of supply and return water of the floor heating, so that the indoor temperature of the radiator heating users cannot meet the requirement. How to increase and regulate the temperature of the supplied and returned water at the heating user of the radiator is the problem to be solved.
The Carnot cooler is a machine working according to a reverse Carnot cycle, a low-temperature low-pressure refrigerant medium absorbs heat of a low-temperature heat source through a low-temperature heat exchanger, is heated and then is compressed through a compressor, a refrigerant with the temperature and the pressure increased releases heat to a high-temperature heat source through a high-temperature heat exchanger, then is throttled and expanded through an expansion valve, the pressure and the temperature are reduced, and the heat is transferred from the low-temperature heat source to the high-temperature heat source in a reciprocating mode.
Disclosure of Invention
The invention aims to provide a method and a device for regulating and controlling the temperature of supply and return water of a heating system by using a Carnot cooler, which aim to solve the problem of how to improve and regulate the temperature of the supply and return water at a heating user of a radiator.
The invention provides a method for regulating and controlling the temperature of supply water and return water of a heating system by using a Carnot cooler, which comprises the following steps:
(1) the central heating system is set according to the actual condition of the heating system and the floor radiation heating water supply and return parameters, the water supply temperature is set to be 45 ℃, the return water temperature is set to be 35 ℃, and the water supply and return temperature difference is 10 ℃;
(2) for the heating system of the radiator, a Carnot cooler, a circulating water pump, a flowmeter, a valve, a filter, a temperature sensor, a pressure sensor and a controller are arranged at a user position, wherein a high-temperature heat exchanger, the circulating water pump, the valve, the filter, the temperature sensor and the pressure sensor of the Carnot cooler are connected to a water supply pipeline, and a low-temperature heat exchanger, the flowmeter, the valve, the pressure sensor and the temperature sensor of the Carnot cooler are connected to a water return pipeline; the controller is connected with the Carnot cooler, the circulating water pump, the flowmeter, the pressure sensor and the temperature sensor and controls the Carnot cooler and the circulating water pump to work;
(3) when the Carnot cooler is started to operate, the temperature of low-temperature and low-pressure refrigerants in the low-temperature heat exchanger of the Carnot cooler is increased to 60 ℃ after being compressed by the compressor, the heating water supply temperature is increased to 55 ℃ from 45 ℃ through the high-temperature heat exchanger, the temperature of the refrigerants is decreased to 20 ℃ after passing through the throttle valve, the refrigerants enter the low-temperature heat exchanger to continuously absorb return water heat and circulate repeatedly, after the Carnot cooler operates stably, the circulation flow of the circulating water pump is controlled through frequency conversion, the water supply temperature of an external network of a heating system is ensured to be 45 ℃, the return water temperature of a return network of the heating system is 35 ℃, and the water supply temperature of a heating user is increased to 55 ℃ under.
The device for regulating and controlling the temperature of supply water and return water of a heating system by using a Carnot cooler comprises the Carnot cooler, a controller, a circulating water pump, a pressure sensor and a temperature sensor, wherein a high-temperature heat exchanger of the Carnot cooler is assembled on a water supply pipeline of the heating system, a low-temperature heat exchanger of the Carnot cooler is assembled on a return water pipeline of the heating system, the circulating water pump is assembled on the water supply pipeline of the heating system, the pressure sensor and the temperature sensor are assembled on the water supply pipeline and the return water pipeline of the heating system, the controller is connected with the Carnot cooler, the circulating water pump, the pressure sensor and the temperature sensor can transmit acquired data to the controller in real time, and the controller controls the Carnot cooler and the circulating.
The high-temperature heat exchanger is arranged in the Carnot cooler, the low-temperature heat exchanger, the compressor and the throttle valve are connected through a pipeline to form a refrigerant circulation pipeline, the compressor and the throttle valve are connected with the controller and controlled by the controller to work, the high-temperature heat exchanger is assembled on a water supply pipeline of a heating system, a first valve, a first temperature sensor and a first pressure sensor are sequentially arranged on the water supply pipeline between the high-temperature heat exchanger and a heating user, the first temperature sensor and the first pressure sensor are connected with the controller, the first temperature sensor and the first pressure sensor can transmit collected data to the controller in real time, a second temperature sensor, a second pressure sensor, a second valve, a filter, a third valve, a throttle valve, a first pressure sensor, a second valve, The system comprises a first pressure gauge, a circulating water pump, a second pressure gauge, a fourth valve, a check valve and a third pressure sensor, wherein the second temperature sensor, the second pressure sensor and the third pressure sensor are all connected with a controller, the second temperature sensor, the second pressure sensor and the third pressure sensor can transmit collected data to the controller in real time, a low-temperature heat exchanger is assembled on a water return pipeline of a heating system, a fifth valve, the third temperature sensor and the fourth pressure sensor are sequentially arranged on the water return pipeline between the low-temperature heat exchanger and a heating user, the third temperature sensor and the fourth pressure sensor are connected with the controller, the third temperature sensor and the fourth pressure sensor can transmit the collected data to the controller in real time, and the fourth temperature sensor, the fifth pressure sensor, the check valve and the third pressure sensor are sequentially arranged on the water return pipeline connected to the other side of the low-temperature heat, The fourth temperature sensor and the fifth pressure sensor can transmit the acquired data to the controller in real time.
The invention has the beneficial effects that:
the method and the device for regulating and controlling the supply and return water temperature of the heating system by using the Carnot cooler provided by the invention have the advantages that under the condition that the supply and return water temperature of an external network of the heating system is not changed, the supply water temperature of a heating user is increased by 10 ℃ by controlling the Carnot cooler and the circulating water pump, the return water temperature of the heating user is increased by about 8 ℃, and the heating effect of the user is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the device for regulating and controlling the temperature of supply water and return water of a heating system.
The labels in the above figures are as follows:
1. carnot cold machine 2, controller 3, water supply pipeline 4, return water pipeline
5. High-temperature heat exchanger 6, low-temperature heat exchanger 7, compressor 8 and throttle valve
9. First valve 10, first temperature sensor 11, first pressure sensor
12. A second temperature sensor 13, a second pressure sensor 14, a second valve 15, a filter
16. A third valve 17, a first pressure gauge 18, a circulating water pump 19 and a second pressure gauge
20. Fourth valve 21, check valve 22, third pressure sensor 23, fifth valve
24. Third temperature sensor 25, fourth pressure sensor 26, fourth temperature sensor
27. A fifth pressure sensor 28, a sixth valve 29, a flow meter 30, a seventh valve.
Detailed Description
Please refer to fig. 1:
the invention provides a method for regulating and controlling the temperature of supply water and return water of a heating system by using a Carnot cooler, which comprises the following steps:
(1) the central heating system is set according to the actual condition of the heating system and the floor radiation heating water supply and return parameters, the water supply temperature is set to be 45 ℃, the return water temperature is set to be 35 ℃, and the water supply and return temperature difference is 10 ℃;
(2) for the radiator heating system, a Carnot cooler 1, a circulating water pump 18, a flow meter 29, a valve, a filter 15, a temperature sensor, a pressure sensor and a controller 2 are arranged at a user position, wherein a high-temperature heat exchanger 5, the circulating water pump 18, a first valve 9, a second valve 14, a third valve 16, a fourth valve 20, the filter 15, a first temperature sensor 10, a second temperature sensor 12, a first pressure sensor 11, a second pressure sensor 13 and a third pressure sensor 22 of the Carnot cooler 1 are connected to a water supply pipeline 3, and a low-temperature heat exchanger 6, the flow meter 29, a fifth valve 23, a sixth valve 28, a seventh valve 30, a third temperature sensor 24, a fourth temperature sensor 26, a fourth pressure sensor 25 and a fifth pressure sensor 27 of the Carnot cooler 1 are connected to a water return pipeline 4; the water supply of the heating system is used as a high-temperature heat source of the Carnot cooler 1, the return water of the heating system is used as a low-temperature heat source of the Carnot cooler 1, and the controller 2 is connected with the Carnot cooler 1, the circulating water pump 18, the flowmeter 29, the first temperature sensor 10, the second temperature sensor 12, the third temperature sensor 24, the fourth temperature sensor 26, the first pressure sensor 11, the second pressure sensor 13, the third pressure sensor 22, the fourth pressure sensor 25 and the fifth pressure sensor 27 and controls the work of the Carnot cooler 1 and the circulating water pump 18;
(3) when the Carnot cooler 1 is started to operate, the temperature of low-temperature and low-pressure refrigerant in the low-temperature heat exchanger 6 in the Carnot cooler 1 is increased to 60 ℃ after being compressed by the compressor 7, the heating water supply temperature is increased to 55 ℃ from 45 ℃ through the high-temperature heat exchanger 5, the temperature of the refrigerant is reduced to 20 ℃ after passing through the throttle valve 8, the refrigerant enters the low-temperature heat exchanger 6 to continuously absorb return water heat and circularly reciprocates, after the Carnot cooler 1 stably operates, the circulating flow of the circulating water pump 18 is controlled through frequency conversion, the water supply temperature of an external network of the heating system is ensured to be 45 ℃, the return water temperature of a return network of the heating system is 35 ℃, and under the condition that the water supply temperature and the return water temperature of a centralized heating.
The device for regulating and controlling the supply and return water temperature of the heating system by using the Carnot cooler comprises the Carnot cooler 1, a controller 2, a circulating water pump 18, a pressure sensor and a temperature sensor, wherein a high-temperature heat exchanger 5 of the Carnot cooler 1 is assembled on a water supply pipeline 3 of the heating system, a low-temperature heat exchanger 6 of the Carnot cooler 1 is assembled on a return water pipeline 4 of the heating system, the circulating water pump 18 is assembled on the water supply pipeline 3 of the heating system, the pressure sensor and the temperature sensor are assembled on the water supply pipeline 3 and the return water pipeline 4 of the heating system, the controller 2 is connected with the Carnot cooler 1, the circulating water pump 18, the pressure sensor and the temperature sensor can transmit acquired data to the controller 2 in real time, and the controller 2 controls the work of the Carnot cooler 1 and the circulating water pump 18.
The Carnot cooler 1 is internally provided with a high-temperature heat exchanger 5, a low-temperature heat exchanger 6, a compressor 7 and a throttle valve 8, the high-temperature heat exchanger 5, the low-temperature heat exchanger 6, the compressor 7 and the throttle valve 7 are connected through a pipeline to form a refrigerant circulation pipeline, the compressor 7 and the throttle valve 8 are both connected with a controller 2 and controlled by the controller 2 to work, the high-temperature heat exchanger 5 is assembled on a water supply pipeline 3 of a heating system, a first valve 9, a first temperature sensor 10 and a first pressure sensor 11 are sequentially arranged on the water supply pipeline 3 between the high-temperature heat exchanger 5 and a heating user, the first temperature sensor 10 and the first pressure sensor 11 are both connected with the controller 2, the first temperature sensor 10 and the first pressure sensor 11 can transmit acquired data to the controller 2 in real time, and a second temperature sensor 12, a second temperature sensor 12 and a third pressure sensor are sequentially arranged, A second pressure sensor 13, a second valve 14, a filter 15, a third valve 16, a first pressure gauge 17, a circulating water pump 18, a second pressure gauge 19, a fourth valve 20, a check valve 21 and a third pressure sensor 22, wherein the second temperature sensor 12, the second pressure sensor 13 and the third pressure sensor 22 are all connected with the controller 2, the second temperature sensor 12, the second pressure sensor 13 and the third pressure sensor 22 can transmit the collected data to the controller 2 in real time, the low-temperature heat exchanger 6 is assembled on a water return pipeline 4 of the heating system, a fifth valve 23, a third temperature sensor 24 and a fourth pressure sensor 25 are sequentially arranged on the water return pipeline between the low-temperature heat exchanger 6 and a heating user, the third temperature sensor 24 and the fourth pressure sensor 25 are connected with the controller 2, the third temperature sensor 24 and the fourth pressure sensor 25 can transmit the collected data to the controller 2 in real time, a fourth temperature sensor 26, a fifth pressure sensor 27, a sixth valve 28, a flowmeter 29 and a seventh valve 30 are sequentially arranged on the water return pipeline 4 connected to the other side of the low-temperature heat exchanger 6, wherein the fourth temperature sensor 26 and the fifth pressure sensor 27 are both connected with the controller 2, and the fourth temperature sensor 26 and the fifth pressure sensor 27 can transmit acquired data to the controller 2 in real time.
Claims (3)
1. A method for regulating and controlling the temperature of supply water and return water of a heating system by using a Carnot cooler is characterized by comprising the following steps: the method comprises the following steps:
(1) the central heating system is set according to the actual condition of the heating system and the floor radiation heating water supply and return parameters, the water supply temperature is set to be 45 ℃, the return water temperature is set to be 35 ℃, and the water supply and return temperature difference is 10 ℃;
(2) for the heating system of the radiator, a Carnot cooler, a circulating water pump, a flowmeter, a valve, a filter, a temperature sensor, a pressure sensor and a controller are arranged at a user position, wherein a high-temperature heat exchanger, the circulating water pump, the valve, the filter, the temperature sensor and the pressure sensor of the Carnot cooler are connected to a water supply pipeline, and a low-temperature heat exchanger, the flowmeter, the valve, the pressure sensor and the temperature sensor of the Carnot cooler are connected to a water return pipeline; the controller is connected with the Carnot cooler, the circulating water pump, the flowmeter, the pressure sensor and the temperature sensor and controls the Carnot cooler and the circulating water pump to work;
(3) when the Carnot cooler is started to operate, the temperature of low-temperature and low-pressure refrigerants in the low-temperature heat exchanger of the Carnot cooler is increased to 60 ℃ after being compressed by the compressor, the heating water supply temperature is increased to 55 ℃ from 45 ℃ through the high-temperature heat exchanger, the temperature of the refrigerants is decreased to 20 ℃ after passing through the throttle valve, the refrigerants enter the low-temperature heat exchanger to continuously absorb return water heat and circulate repeatedly, after the Carnot cooler operates stably, the circulation flow of the circulating water pump is controlled through frequency conversion, the water supply temperature of an external network of a heating system is ensured to be 45 ℃, the return water temperature of a return network of the heating system is 35 ℃, and the water supply temperature of a heating user is increased to 55 ℃ under.
2. The utility model provides an utilize cold quick-witted regulation and control heating system of carnot to supply return water temperature's device which characterized in that: the device comprises a Carnot cooler, a controller, a circulating water pump, a pressure sensor and a temperature sensor, wherein a high-temperature heat exchanger of the Carnot cooler is assembled on a water supply pipeline of a heating system, a low-temperature heat exchanger of the Carnot cooler is assembled on a water return pipeline of the heating system, the circulating water pump is assembled on the water supply pipeline of the heating system, the pressure sensor and the temperature sensor are assembled on the water supply pipeline and the water return pipeline of the heating system, the controller is connected with the Carnot cooler, the circulating water pump, the pressure sensor and the temperature sensor are connected, the pressure sensor and the temperature sensor can transmit collected data to the controller in real time, and the controller controls the work of the Carnot cooler and the circulating water.
3. The device for regulating and controlling the temperature of the supply water and the return water of the heating system by using the carnot cooler as claimed in claim 2, wherein: the Carnot cooler is internally provided with a high-temperature heat exchanger, a low-temperature heat exchanger, a compressor and a throttle valve, the high-temperature heat exchanger, the low-temperature heat exchanger, the compressor and the throttle valve are connected through a pipeline to form a refrigerant circulation pipeline, the compressor and the throttle valve are both connected with a controller and work under the control of the controller, the high-temperature heat exchanger is assembled on a water supply pipeline of a heating system, a first valve, a first temperature sensor and a first pressure sensor are sequentially arranged on the water supply pipeline between the high-temperature heat exchanger and a heating user, the first temperature sensor and the first pressure sensor are both connected with the controller, the first temperature sensor and the first pressure sensor can transmit acquired data to the controller in real time, a second temperature sensor, a second pressure sensor, a second valve, a filter, a third valve, a, The system comprises a first pressure gauge, a circulating water pump, a second pressure gauge, a fourth valve, a check valve and a third pressure sensor, wherein the second temperature sensor, the second pressure sensor and the third pressure sensor are all connected with a controller, the second temperature sensor, the second pressure sensor and the third pressure sensor can transmit collected data to the controller in real time, a low-temperature heat exchanger is assembled on a water return pipeline of a heating system, a fifth valve, the third temperature sensor and the fourth pressure sensor are sequentially arranged on the water return pipeline between the low-temperature heat exchanger and a heating user, the third temperature sensor and the fourth pressure sensor are connected with the controller, the third temperature sensor and the fourth pressure sensor can transmit the collected data to the controller in real time, and the fourth temperature sensor, the fifth pressure sensor, the check valve and the third pressure sensor are sequentially arranged on the water return pipeline connected to the other side of the low-temperature heat, The fourth temperature sensor and the fifth pressure sensor can transmit the acquired data to the controller in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110238647.8A CN112984614A (en) | 2021-03-04 | 2021-03-04 | Method and device for regulating and controlling supply and return water temperature of heating system by using Carnot cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110238647.8A CN112984614A (en) | 2021-03-04 | 2021-03-04 | Method and device for regulating and controlling supply and return water temperature of heating system by using Carnot cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112984614A true CN112984614A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110238647.8A Pending CN112984614A (en) | 2021-03-04 | 2021-03-04 | Method and device for regulating and controlling supply and return water temperature of heating system by using Carnot cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112984614A (en) |
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| JP2002081768A (en) * | 2000-06-21 | 2002-03-22 | Matsushita Electric Ind Co Ltd | Heat pump hot water supplier |
| CN106979545A (en) * | 2017-05-26 | 2017-07-25 | 天津市热电设计院有限公司 | A kind of utilization heat pump extracts once the heating plant of net backwater heat |
| CN107388325A (en) * | 2017-09-06 | 2017-11-24 | 天津市爱默森电气科技有限公司 | The pipe network and system at heating heat-exchange station |
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| CN110260550A (en) * | 2019-07-15 | 2019-09-20 | 中国建筑科学研究院有限公司 | Cascade high-temperature heat pump unit |
| CN210624680U (en) * | 2019-09-18 | 2020-05-26 | 江苏河海新能源股份有限公司 | City concentrated energy supply system |
| CN111351101A (en) * | 2020-04-13 | 2020-06-30 | 中国建筑西北设计研究院有限公司 | Heating ventilation air-conditioning system for indoor plant garden |
| CN213542602U (en) * | 2020-11-23 | 2021-06-25 | 长春工程学院 | Central heating user water temperature regulation and control heat pump unit |
-
2021
- 2021-03-04 CN CN202110238647.8A patent/CN112984614A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081768A (en) * | 2000-06-21 | 2002-03-22 | Matsushita Electric Ind Co Ltd | Heat pump hot water supplier |
| CN106979545A (en) * | 2017-05-26 | 2017-07-25 | 天津市热电设计院有限公司 | A kind of utilization heat pump extracts once the heating plant of net backwater heat |
| CN107388325A (en) * | 2017-09-06 | 2017-11-24 | 天津市爱默森电气科技有限公司 | The pipe network and system at heating heat-exchange station |
| CN109373416A (en) * | 2018-10-10 | 2019-02-22 | 吉林天亮人工环境科技有限公司 | A kind of central heating system being distributed formula electric heating pump peak adjusting device in secondary network |
| CN110260550A (en) * | 2019-07-15 | 2019-09-20 | 中国建筑科学研究院有限公司 | Cascade high-temperature heat pump unit |
| CN210624680U (en) * | 2019-09-18 | 2020-05-26 | 江苏河海新能源股份有限公司 | City concentrated energy supply system |
| CN111351101A (en) * | 2020-04-13 | 2020-06-30 | 中国建筑西北设计研究院有限公司 | Heating ventilation air-conditioning system for indoor plant garden |
| CN213542602U (en) * | 2020-11-23 | 2021-06-25 | 长春工程学院 | Central heating user water temperature regulation and control heat pump unit |
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