CN101825374B - Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources - Google Patents

Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources Download PDF

Info

Publication number
CN101825374B
CN101825374B CN 201010170289 CN201010170289A CN101825374B CN 101825374 B CN101825374 B CN 101825374B CN 201010170289 CN201010170289 CN 201010170289 CN 201010170289 A CN201010170289 A CN 201010170289A CN 101825374 B CN101825374 B CN 101825374B
Authority
CN
China
Prior art keywords
temperature
low
heat pump
heat source
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201010170289
Other languages
Chinese (zh)
Other versions
CN101825374A (en
Inventor
周光辉
董秀洁
刘寅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongyuan University of Technology
Original Assignee
Zhongyuan University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongyuan University of Technology filed Critical Zhongyuan University of Technology
Priority to CN 201010170289 priority Critical patent/CN101825374B/en
Publication of CN101825374A publication Critical patent/CN101825374A/en
Application granted granted Critical
Publication of CN101825374B publication Critical patent/CN101825374B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12—Hot water central heating systems using heat pumps

Landscapes

  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention discloses a cascade high-temperature heat pump with a liquid intermediate-temperature heat source and double low-temperature heat sources. The heat pump is cascaded by high and low-temperature two heat pump circulating systems; the low-temperature heat pump circulating system comprises a low-temperature compressor, a double heat source evaporator, a heat source type condenser/evaporator, a low-temperature throttling valve and a connecting pipeline; the heat pump working medium of the low-temperature heat pump circulating system is a low-temperature heat pump working medium; the high-temperature heat pump circulating system comprises a high-temperature compressor, a heat source type condenser/evaporator, a high-temperature condenser, a high-temperature throttling valve and a connecting pipeline; the heat pump working medium of the high-temperature heat pump circulating system is a high-temperature heat pump working medium; the double heat source evaporator is provided with a low-temperature heat pump working medium passage and two heat source passages; and the heat source type condenser/evaporator is provided with a low-temperature heat pump working medium passage, a high-temperature heat pump working medium passage and a liquid heat source passage. The system device can efficiently provide hot water of over 75 DEG C, can be widely applied to the heating systems of civil buildings, public buildings and villa buildings, and can meet the high-temperature hot water requirement of industrial production.

Description

一种具有液态中温热源及双低温热源的复叠式高温热泵A cascade high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources

技术领域technical field

本发明涉及热泵空调技术领域，尤其是涉及一种可提供75℃以上热水的具有液态中温热源及双低温热源的复叠式高温热泵。The invention relates to the technical field of heat pump air conditioners, in particular to a cascade high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources that can provide hot water above 75°C.

背景技术Background technique

随着国家节能减排工作的不断推进，城市中的中小型锅炉逐渐被淘汰，目前迫切需要新的高效节能环保装置代替被淘汰的中小型锅炉为采暖和生产提供75℃以上的高温热水。传统的热泵系统只能提供水温不高于55℃的热水，不能满足采暖和生产需求，而目前正在研究的单级循环和复叠式循环高温热泵均只能采用单一低温或单一中温热源，无法实现对两种以上热源的复合利用，且高温工况运转效率很低，难以推广应用。With the continuous advancement of national energy conservation and emission reduction work, small and medium-sized boilers in cities are gradually being eliminated. At present, there is an urgent need for new high-efficiency energy-saving and environmental protection devices to replace the eliminated small and medium-sized boilers to provide high-temperature hot water above 75°C for heating and production. The traditional heat pump system can only provide hot water with a water temperature not higher than 55°C, which cannot meet the needs of heating and production. However, the single-stage cycle and cascade cycle high-temperature heat pumps currently being studied can only use a single low-temperature or a single medium-temperature heat pump. The combined utilization of two or more heat sources cannot be realized, and the operating efficiency is very low under high temperature conditions, making it difficult to popularize and apply.

发明内容Contents of the invention

本发明的目的正是针对上述现有技术中所存在的不足之处而提供一种可对空气、太阳能、地能等可再生能源及各种余热、废热进行综合与合理利用的，可制取75℃以上热水的具有液态中温热源及双低温热源的复叠式高温热泵。The purpose of the present invention is to provide a comprehensive and rational utilization of renewable energy such as air, solar energy, ground energy, and various waste heat and waste heat for the shortcomings of the above-mentioned prior art. A cascade high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources for hot water above 75°C.

本发明的目的可通过下述技术措施来实现：The purpose of the present invention can be achieved through the following technical measures:

本发明的具有液态中温热源及双低温热源的复叠式高温热泵是由高、低温两个热泵循环系统复叠而成：The cascaded high-temperature heat pump with liquid medium-temperature heat source and double low-temperature heat source of the present invention is formed by cascading two heat pump circulation systems of high and low temperature:

a、所述低温循环包括低温压缩机、双热源蒸发器、热源型冷凝蒸发器、低温节流阀及连接管路；所述双热源蒸发器具有一个低温热泵工质通道和两个热源通道，热源型冷凝蒸发器具有一个低温热泵工质通道、一个高温热泵工质通道及一个液态热源通道；其中低温压缩机的进口连接双热源蒸发器的低温热泵工质通道的出口，低温压缩机的出口连接热源型冷凝蒸发器的低温热泵工质通道的进口；热源型冷凝蒸发器的低温热泵工质通道的出口通过低温节流阀与双热源蒸发器的低温热泵工质通道的进口相连接，其热泵工质为低温热泵工质(为常规热泵空调所用的工质)；所述热源型冷凝蒸发器的液态热源通道的进、出接口分别与液态热源的进、出口管道连接，构成独立的回路；所述双热源蒸发器的两个热源通道各自的进、出接口分别与两种不同低温热源的进、出口管道连接，构成两个独立的回路；a. The low temperature cycle includes a low temperature compressor, a dual heat source evaporator, a heat source type condensation evaporator, a low temperature throttle valve and connecting pipelines; the dual heat source evaporator has a low temperature heat pump working fluid channel and two heat source channels, The heat source type condensing evaporator has a low-temperature heat pump working fluid channel, a high-temperature heat pump working fluid channel and a liquid heat source channel; the inlet of the low-temperature compressor is connected to the outlet of the low-temperature heat pump working medium channel of the dual heat source evaporator, and the outlet of the low-temperature compressor Connect the inlet of the low-temperature heat pump working fluid channel of the heat source condensing evaporator; the outlet of the low-temperature heat pump working medium channel of the heat source condensing evaporator is connected with the inlet of the low-temperature heat pump working medium channel of the dual heat source evaporator through a low-temperature throttling valve. The heat pump working medium is a low-temperature heat pump working medium (the working medium used in conventional heat pump air conditioners); the inlet and outlet interfaces of the liquid heat source channel of the heat source type condensing evaporator are respectively connected with the inlet and outlet pipes of the liquid heat source to form an independent circuit The respective inlet and outlet ports of the two heat source channels of the dual heat source evaporator are respectively connected to the inlet and outlet pipes of two different low-temperature heat sources to form two independent circuits;

b、所述高温循环包括高温压缩机、热源型冷凝蒸发器、高温冷凝器、高温节流阀及连接管路；其中高温压缩机的进口连接热源型冷凝蒸发器的高温热泵工质通道的出口，高温压缩机的出口连接高温冷凝器的热泵工质通道的进口，热源型冷凝蒸发器的高温热泵工质通道的进口通过高温节流阀与高温冷凝器的热泵工质通道的出口相连接，其热泵工质为高温热泵工质(为冷凝温度较高的高温热泵工质、其正常工况范围内的冷凝温度≥75℃)。b. The high temperature cycle includes a high temperature compressor, a heat source type condensing evaporator, a high temperature condenser, a high temperature throttle valve and connecting pipelines; wherein the inlet of the high temperature compressor is connected to the outlet of the high temperature heat pump working medium channel of the heat source type condensing evaporator , the outlet of the high-temperature compressor is connected to the inlet of the heat pump working medium channel of the high-temperature condenser, and the inlet of the high-temperature heat pump working medium channel of the heat source condensing evaporator is connected to the outlet of the heat pump working medium channel of the high-temperature condenser through a high-temperature throttle valve, The heat pump working fluid is a high-temperature heat pump working fluid (a high-temperature heat pump working fluid with a relatively high condensation temperature, and its condensation temperature within the normal operating range is ≥ 75°C).

所述双热源蒸发器所使用的热源可为温度≤30℃的空气、太阳能、地能等可再生能源及各种余热和废热。The heat source used by the dual heat source evaporator can be renewable energy such as air with a temperature of ≤30°C, solar energy, ground energy, and various waste heat and waste heat.

所述热源型冷凝蒸发器所使用的热源可为温度≥30℃的太阳能、地能等可再生热源及各种液态余热、废热。The heat source used in the heat source type condensing evaporator can be renewable heat sources such as solar energy and ground energy with a temperature ≥ 30° C., and various liquid waste heat and waste heat.

本发明的具有液态中温热源及双低温热源的复叠式高温热泵既可单独吸收气态低温热源、液态低温热源及气态中温热源热量，又可同时吸收气态低温热源、液态低温热源、液态中温热源中的任意两种或三种热源的热量。The cascade high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources of the present invention can not only absorb the heat of a gaseous low-temperature heat source, a liquid low-temperature heat source, and a gaseous medium-temperature heat source, but also simultaneously absorb a gaseous low-temperature heat source, a liquid low-temperature heat source, The heat of any two or three heat sources in the liquid medium temperature heat source.

本发明中所述双热源蒸发器为中国专利200720091299.1所公开的翅片一套管式三介质复合式换热器，也可采用中国专利200820069364.5所公开的具有三种介质通道的壳—套管式三介质复合换热器。The dual heat source evaporator described in the present invention is a fin-in-tube three-medium compound heat exchanger disclosed in Chinese patent 200720091299.1, and a shell-tube type with three medium passages disclosed in Chinese patent 200820069364.5 can also be used Three-medium composite heat exchanger.

本发明中所述热源型冷凝蒸发器为中国专利200820069364.5所公开的具有三种介质通道的壳—套管式三介质复合换热器。The heat source type condensing evaporator described in the present invention is a shell-tube type three-medium compound heat exchanger disclosed in Chinese patent 200820069364.5 with three kinds of medium passages.

本发明的有益效果如下：The beneficial effects of the present invention are as follows:

本发明的装置可高效地提供75℃以上的热水，可广泛应用于民用建筑、公共建筑、别墅建筑的供暖系统，并可满足工业生产的高温热水需求。The device of the invention can efficiently provide hot water above 75°C, can be widely used in heating systems of civil buildings, public buildings, and villa buildings, and can meet the demand for high-temperature hot water in industrial production.

附图说明Description of drawings

图1为本发明具有液态中温热源及双低温热源的复叠式高温热泵的结构原理图。Fig. 1 is a schematic structural diagram of a cascade high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources according to the present invention.

图2为低温热源为气态和液态的具有液态中温热源及双低温热源的复叠式高温热泵的结构原理图。Fig. 2 is a structural principle diagram of a cascaded high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources in which the low-temperature heat source is gaseous and liquid.

图3为低温热源为两种液态热源的具有液态中温热源及双低温热源的复叠式高温热泵的结构原理图。Fig. 3 is a schematic diagram of the structure of a cascade high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources in which the low-temperature heat source is two liquid heat sources.

图中序号：1低温压缩机，1’高温压缩机，2双热源蒸发器，3高温冷凝器，4低温节流阀，4’高温节流阀，5热源型冷凝蒸发器。Serial number in the picture: 1 low temperature compressor, 1' high temperature compressor, 2 double heat source evaporator, 3 high temperature condenser, 4 low temperature throttle valve, 4' high temperature throttle valve, 5 heat source type condensing evaporator.

具体实施方式Detailed ways

本发明以下将结合实施例(附图)作进一步描述，但并不限制本发明。The present invention will be further described below in conjunction with examples (accompanying drawings), but does not limit the present invention.

实施例1Example 1

如图1所示，本实施例的具有液态中温热源及双低温热源的复叠式高温热泵由高、低温两个热泵循环系统复叠而成；其中：所述低温循环包括低温压缩机1、双热源蒸发器2、热源型冷凝蒸发器5、低温节流阀4及连接管路；所述双热源蒸发器2具有一个低温热泵工质通道和两个热源通道，热源型冷凝蒸发器5具有一个低温热泵工质通道、一个高温热泵工质通道及一个液态热源通道；其中低温压缩机1的进口连接双热源蒸发器2的低温热泵工质通道的出口，低温压缩机1的出口连接热源型冷凝蒸发器5的低温热泵工质通道的进口；热源型冷凝蒸发器5的低温热泵工质通道的出口通过低温节流阀4与双热源蒸发器2的低温热泵工质通道的进口相连接，其热泵工质为低温热泵工质(为常规热泵空调所用的工质)；所述热源型冷凝蒸发器5的液态热源通道的进、出接口分别与液态热源的进、出口管道连接，构成独立的回路；所述双热源蒸发器2的两个热源通道各自的进、出接口分别与两种不同低温热源的进、出口管道连接，构成两个独立的回路；所述高温循环包括高温压缩机1’、热源型冷凝蒸发器5、高温冷凝器3、高温节流阀4’及连接管路；其中高温压缩机1’的进口连接热源型冷凝蒸发器5的高温热泵工质通道的出口，高温压缩机1’的出口连接高温冷凝器3的热泵工质通道的进口，热源型冷凝蒸发器5的高温热泵工质通道的进口通过高温节流阀4’与高温冷凝器3的热泵工质通道的出口相连接，其热泵工质为高温热泵工质(为冷凝温度较高的高温热泵工质、其正常工况范围内的冷凝温度≥75℃)。As shown in Figure 1, the cascaded high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources in this embodiment is composed of two high-temperature and low-temperature heat pump circulation systems; wherein: the low-temperature cycle includes a low-temperature compressor 1. Dual heat source evaporator 2, heat source type condensation evaporator 5, low temperature throttle valve 4 and connecting pipeline; 5 has a low-temperature heat pump working medium channel, a high-temperature heat pump working medium channel and a liquid heat source channel; the inlet of the low-temperature compressor 1 is connected to the outlet of the low-temperature heat pump working medium channel of the dual heat source evaporator 2, and the outlet of the low-temperature compressor 1 is connected to The inlet of the low-temperature heat pump working medium channel of the heat source type condensing evaporator 5; the outlet of the low temperature heat pump working medium channel of the heat source type condensing evaporator 5 is connected to the inlet of the low temperature heat pump working medium channel of the dual heat source evaporator 2 through the low temperature throttle valve 4 connected, the heat pump working fluid is a low temperature heat pump working fluid (working fluid used in conventional heat pump air conditioners); the inlet and outlet interfaces of the liquid heat source channel of the heat source type condensing evaporator 5 are respectively connected with the inlet and outlet pipelines of the liquid heat source, An independent circuit is formed; the respective inlet and outlet ports of the two heat source passages of the dual heat source evaporator 2 are respectively connected with the inlet and outlet pipes of two different low-temperature heat sources to form two independent circuits; the high temperature cycle includes high temperature Compressor 1', heat source type condensing evaporator 5, high temperature condenser 3, high temperature throttle valve 4' and connecting pipelines; the inlet of high temperature compressor 1' is connected to the high temperature heat pump working medium channel of heat source type condensing evaporator 5 The outlet, the outlet of the high-temperature compressor 1' is connected to the inlet of the heat pump working medium channel of the high-temperature condenser 3, and the inlet of the high-temperature heat pump working medium channel of the heat source condensing evaporator 5 passes through the high-temperature throttle valve 4' and the heat pump of the high-temperature condenser 3 The outlets of the working fluid channels are connected, and the heat pump working fluid is a high-temperature heat pump working fluid (a high-temperature heat pump working fluid with a relatively high condensation temperature, and its condensation temperature within the normal operating range is ≥ 75°C).

所述双热源蒸发器所使用的热源可为温度≤30℃的空气、太阳能、地能等可再生能源及各种余热和废热。The heat source used by the dual heat source evaporator can be renewable energy such as air with a temperature of ≤30°C, solar energy, ground energy, and various waste heat and waste heat.

所述热源型冷凝蒸发器所使用的热源可为温度≥30℃的太阳能、地能等可再生热源及各种液态余热、废热。The heat source used in the heat source type condensing evaporator can be renewable heat sources such as solar energy and ground energy with a temperature ≥ 30° C., and various liquid waste heat and waste heat.

本发明的具有液态中温热源及双低温热源的复叠式高温热泵既可单独吸收气态低温热源、液态低温热源及气态中温热源热量，又可同时吸收气态低温热源、液态低温热源及气态中温热源热量。The cascade high-temperature heat pump with liquid medium-temperature heat source and double low-temperature heat source of the present invention can not only absorb the heat of gaseous low-temperature heat source, liquid low-temperature heat source and gaseous medium-temperature heat source, but also absorb gaseous low-temperature heat source, liquid low-temperature heat source and heat at the same time. Gaseous medium-temperature heat source heat.

实施例2Example 2

如图2所示，本实施例结构与实施例1相同，该实施例中所述的低温热源为气态和液态热源。As shown in Figure 2, the structure of this embodiment is the same as that of Embodiment 1, and the low-temperature heat sources described in this embodiment are gaseous and liquid heat sources.

实施例3Example 3

如图3所示，本实施例结构与实施例1相同，该实施例中所述的低温热源为两种液态热源。As shown in FIG. 3 , the structure of this embodiment is the same as that of Embodiment 1, and the low-temperature heat sources described in this embodiment are two kinds of liquid heat sources.

本发明中所述双热源蒸发器为中国专利200720091299.1所公开的翅片一套管式三介质复合式换热器，也可采用中国专利200820069364.5所公开的具有三种介质通道的壳—套管式三介质复合换热器。The dual heat source evaporator described in the present invention is a fin-in-tube three-medium compound heat exchanger disclosed in Chinese patent 200720091299.1, and a shell-tube type with three medium passages disclosed in Chinese patent 200820069364.5 can also be used Three-medium composite heat exchanger.

本发明中所述热源型冷凝蒸发器为中国专利200820069364.5所公开的具有三种介质通道的壳—套管式三介质复合换热器。The heat source type condensing evaporator described in the present invention is a shell-tube type three-medium compound heat exchanger disclosed in Chinese patent 200820069364.5 with three kinds of medium passages.

本发明的工作流程如下：Work process of the present invention is as follows:

(1)单独低温热源模式(1) Separate low temperature heat source mode

A、单一气态低温热源模式。A. Single gaseous low temperature heat source mode.

低温热泵工质由低温压缩机1压缩，经至热源型冷凝蒸发器5释放热量后，经低温节流阀4进入双热源蒸发器2，吸收气态热源热量后进入低温压缩机进入下一循环；高温热泵工质由高温压缩机1’压缩，经至高温冷凝器3释放热量后，经高温节流阀4’，热源型冷凝蒸发器5，吸收低温热泵工质热量后进入高温压缩机进入下一循环。The working fluid of the low-temperature heat pump is compressed by the low-temperature compressor 1, and after releasing heat to the heat-source condensing evaporator 5, it enters the dual-heat-source evaporator 2 through the low-temperature throttle valve 4, and enters the low-temperature compressor to enter the next cycle after absorbing the heat of the gaseous heat source; The high-temperature heat pump working fluid is compressed by the high-temperature compressor 1', releases heat through the high-temperature condenser 3, passes through the high-temperature throttle valve 4', and the heat source type condensing evaporator 5, absorbs the heat of the low-temperature heat pump working medium, and enters the high-temperature compressor into the lower one cycle.

B、单一液态低温热源模式。B. Single liquid low temperature heat source mode.

低温热泵工质由低温压缩机1压缩，经至热源型冷凝蒸发器5释放热量后，经低温节流阀4进入双热源蒸发器2，吸收液态热源热量后进入低温压缩机进入下一循环；高温热泵工质由高温压缩机1’压缩，经至高温冷凝器3释放热量后，经高温节流阀4’，热源型冷凝蒸发器5，吸收低温热泵工质热量后进入高温压缩机进入下一循环。The working medium of the low-temperature heat pump is compressed by the low-temperature compressor 1, and after releasing heat to the heat-source condensing evaporator 5, it enters the dual-heat-source evaporator 2 through the low-temperature throttling valve 4, and enters the low-temperature compressor to enter the next cycle after absorbing the heat of the liquid heat source; The high-temperature heat pump working fluid is compressed by the high-temperature compressor 1', releases heat through the high-temperature condenser 3, passes through the high-temperature throttle valve 4', and the heat source type condensing evaporator 5, absorbs the heat of the low-temperature heat pump working medium, and enters the high-temperature compressor into the lower one cycle.

C、气态—液态双低温热源复合模式。C. Combination mode of gaseous-liquid dual low-temperature heat sources.

低温热泵工质由低温压缩机1压缩，经至热源型冷凝蒸发器5释放热量后，经低温节流阀4进入双热源蒸发器2，同时吸收气态热源和液态热源热量后进入低温压缩机进入下一循环；高温热泵工质由高温压缩机1，压缩，经至高温冷凝器3释放热量后，经高温节流阀4’，热源型冷凝蒸发器5，吸收低温热泵工质热量后进入高温压缩机进入下一循环。The working medium of the low-temperature heat pump is compressed by the low-temperature compressor 1, and after releasing heat to the heat-source condensing evaporator 5, it enters the dual-heat-source evaporator 2 through the low-temperature throttling valve 4, and enters the low-temperature compressor after absorbing the heat of gaseous heat source and liquid heat source at the same time. The next cycle: the high-temperature heat pump working fluid is compressed by the high-temperature compressor 1, and after passing through the high-temperature condenser 3 to release heat, it passes through the high-temperature throttle valve 4' and the heat source type condensing evaporator 5, absorbs the heat of the low-temperature heat pump working medium, and then enters the high temperature The compressor enters the next cycle.

D、双液态低温热源复合模式。D. Composite mode of dual-liquid low-temperature heat source.

低温热泵工质由低温压缩机1压缩，经至热源型冷凝蒸发器5释放热量后，经低温节流阀4进入双热源蒸发器2，同时吸收两种液态热源的热量后进入低温压缩机进入下一循环；高温热泵工质由高温压缩机1’压缩，经至高温冷凝器3释放热量后，经高温节流阀4’，热源型冷凝蒸发器5，吸收低温热泵工质热量后进入高温压缩机进入下一循环。The working medium of the low-temperature heat pump is compressed by the low-temperature compressor 1, and after releasing heat to the heat-source condensing evaporator 5, it enters the dual-heat-source evaporator 2 through the low-temperature throttling valve 4, and enters the low-temperature compressor after absorbing the heat of two liquid heat sources at the same time. The next cycle: the high-temperature heat pump working fluid is compressed by the high-temperature compressor 1', and after passing through the high-temperature condenser 3 to release heat, it passes through the high-temperature throttle valve 4' and the heat source type condensing evaporator 5, absorbs the heat of the low-temperature heat pump working medium, and then enters the high temperature The compressor enters the next cycle.

(2)单独液态中温热源模式(2) Single liquid medium temperature heat source mode

关闭低温压缩机1，高温热泵工质由高温压缩机1’压缩，经至高温冷凝器3释放热量后，经高温节流阀4’，热源型冷凝蒸发器5，吸收液态中温热源热量后进入高温压缩机进入下一循环。Turn off the low-temperature compressor 1, the high-temperature heat pump working fluid is compressed by the high-temperature compressor 1', releases heat through the high-temperature condenser 3, passes through the high-temperature throttle valve 4', and the heat source type condensing evaporator 5 absorbs heat from a liquid medium-temperature heat source Then enter the high-temperature compressor to enter the next cycle.

(3)液态中温热源与单一低温热源复合模式(3) Compound mode of liquid medium-temperature heat source and single low-temperature heat source

低温热泵工质由低温压缩机1压缩，经至热源型冷凝蒸发器5释放热量后，经低温节流阀4进入双热源蒸发器2，吸收气态或液态热源热量后进入低温压缩机进入下一循环；高温热泵工质由高温压缩机1’压缩，经至高温冷凝器3释放热量后，经高温节流阀4’，热源型冷凝蒸发器5，吸收低温热泵工质及液态中温热源热量后进入高温压缩机进入下一循环。The low-temperature heat pump working fluid is compressed by the low-temperature compressor 1, and after releasing heat to the heat-source condensing evaporator 5, it enters the dual-heat-source evaporator 2 through the low-temperature throttle valve 4, and enters the low-temperature compressor after absorbing heat from a gaseous or liquid heat source. Circulation; the high-temperature heat pump working fluid is compressed by the high-temperature compressor 1', and after passing through the high-temperature condenser 3 to release heat, it passes through the high-temperature throttle valve 4', and the heat source type condensing evaporator 5 absorbs the low-temperature heat pump working fluid and liquid medium-temperature heat source After the heat, it enters the high-temperature compressor and enters the next cycle.

(4)液态中温热源与双低温热源复合模式(4) Composite mode of liquid medium-temperature heat source and double low-temperature heat source

低温热泵工质由低温压缩机1压缩，经至热源型冷凝蒸发器5释放热量后，经低温节流阀4进入双热源蒸发器2，同时吸收气态和液态热源热量后进入低温压缩机进入下一循环；高温热泵工质由高温压缩机1’压缩，经至高温冷凝器3释放热量后，经高温节流阀4’，热源型冷凝蒸发器5，吸收低温热泵工质及液态中温热源热量后进入高温压缩机进入下一循环。The low-temperature heat pump working medium is compressed by the low-temperature compressor 1, and after releasing heat to the heat-source condensing evaporator 5, it enters the dual-heat-source evaporator 2 through the low-temperature throttling valve 4, and enters the low-temperature compressor after absorbing heat from gaseous and liquid heat sources at the same time. One cycle: the high-temperature heat pump working fluid is compressed by the high-temperature compressor 1', and after passing through the high-temperature condenser 3 to release heat, it passes through the high-temperature throttling valve 4', and the heat source type condensing evaporator 5 absorbs the low-temperature heat pump working fluid and liquid medium heat After the source heat enters the high-temperature compressor to enter the next cycle.

Claims (1)

1.一种具有液态中温热源及双低温热源的复叠式高温热泵，其特征在于：该装置由高、低温两个热泵循环系统复叠而成：1. A cascaded high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources, characterized in that: the device is formed by cascading two heat pump circulation systems of high and low temperature: a、所述低温循环包括低温压缩机(1)、双热源蒸发器(2)、热源型冷凝蒸发器(5)、低温节流阀(4)及连接管路；所述双热源蒸发器(2)具有一个低温热泵工质通道和两个热源通道，热源型冷凝蒸发器(5)具有一个低温热泵工质通道、一个高温热泵工质通道及一个液态热源通道；其中低温压缩机(1)的进口连接双热源蒸发器(2)的低温热泵工质通道的出口，低温压缩机(1)的出口连接热源型冷凝蒸发器(5)的低温热泵工质通道的进口；热源型冷凝蒸发器(5)的低温热泵工质通道的出口通过低温节流阀(4)与双热源蒸发器(2)的低温热泵工质通道的进口相连接，其热泵工质为低温热泵工质；所述热源型冷凝蒸发器(5)的液态热源通道的进、出接口分别与液态热源的进、出口管道连接，构成独立的回路；所述双热源蒸发器(2)的两个热源通道各自的进、出接口分别与两种不同低温热源的进、出口管道连接，构成两个独立的回路；a, the low-temperature cycle includes a low-temperature compressor (1), a dual heat source evaporator (2), a heat source type condensation evaporator (5), a low temperature throttle valve (4) and connecting pipelines; the dual heat source evaporator ( 2) It has a low-temperature heat pump working fluid channel and two heat source channels, and the heat source type condensing evaporator (5) has a low-temperature heat pump working fluid channel, a high-temperature heat pump working fluid channel and a liquid heat source channel; the low-temperature compressor (1) The inlet of the evaporator is connected to the outlet of the low-temperature heat pump working medium channel of the dual heat source evaporator (2), and the outlet of the low-temperature compressor (1) is connected to the inlet of the low-temperature heat pump working medium channel of the heat source condensing evaporator (5); the heat source condensing evaporator (5) The outlet of the low-temperature heat pump working medium channel is connected to the inlet of the low-temperature heat pump working medium channel of the dual heat source evaporator (2) through the low-temperature throttling valve (4), and the heat pump working medium is a low-temperature heat pump working medium; The inlet and outlet interfaces of the liquid heat source channel of the heat source type condensing evaporator (5) are respectively connected with the inlet and outlet pipes of the liquid heat source to form an independent circuit; the respective inlet and outlet ports of the two heat source channels of the dual heat source evaporator (2) The outlet and inlet are respectively connected to the inlet and outlet pipes of two different low-temperature heat sources to form two independent circuits; b、所述高温循环包括高温压缩机(1’)、热源型冷凝蒸发器(5)、高温冷凝器(3)、高温节流阀(4’)及连接管路；其中高温压缩机(1’)的进口连接热源型冷凝蒸发器(5)的高温热泵工质通道的出口，高温压缩机(1’)的出口连接高温冷凝器(3)的热泵工质通道的进口，热源型冷凝蒸发器(5)的高温热泵工质通道的进口通过高温节流阀(4’)与高温冷凝器(3)的热泵工质通道的出口相连接，其热泵工质为高温热泵工质。b. The high-temperature cycle includes a high-temperature compressor (1'), a heat source type condensation evaporator (5), a high-temperature condenser (3), a high-temperature throttle valve (4') and connecting pipelines; wherein the high-temperature compressor (1 The inlet of ') is connected to the outlet of the high-temperature heat pump working medium channel of the heat source type condensing evaporator (5), the outlet of the high temperature compressor (1') is connected to the inlet of the heat pump working medium channel of the high temperature condenser (3), and the heat source type condensing and evaporating The inlet of the high-temperature heat pump working medium channel of the condenser (5) is connected with the outlet of the heat pump working medium channel of the high-temperature condenser (3) through a high-temperature throttling valve (4'), and the heat pump working medium is a high-temperature heat pump working medium.
CN 201010170289 2010-05-13 2010-05-13 Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources Active CN101825374B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010170289 CN101825374B (en) 2010-05-13 2010-05-13 Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010170289 CN101825374B (en) 2010-05-13 2010-05-13 Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources

Publications (2)

Publication Number Publication Date
CN101825374A CN101825374A (en) 2010-09-08
CN101825374B true CN101825374B (en) 2011-08-03

Family

ID=42689438

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010170289 Active CN101825374B (en) 2010-05-13 2010-05-13 Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources

Country Status (1)

Country Link
CN (1) CN101825374B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104457027A (en) * 2014-12-02 2015-03-25 苟仲武 Improved compression heat pump working method and device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104406340B (en) * 2014-10-28 2017-01-11 广东芬尼克兹节能设备有限公司 Overlapping type heat pump compressor control method and system
CN105042672A (en) * 2015-09-01 2015-11-11 中国铁道科学研究院 An air source CO2 heat pump system suitable for heating
DE112016007113B4 (en) * 2016-08-02 2023-02-23 Mitsubishi Electric Corporation heat pump device
CN110701664B (en) * 2019-11-11 2023-05-05 江苏天舒电器有限公司 Wide-ring-temperature multistage water outlet variable-frequency air energy cascade heat engine system and working method thereof
CN114136019A (en) * 2021-11-30 2022-03-04 上海发电设备成套设计研究院有限责任公司 A high temperature steam heat pump system
CN116428655A (en) * 2022-01-21 2023-07-14 宁波奥克斯电气股份有限公司 A control method for a coupling system of an air conditioner and a heat pump water heater

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201672738U (en) * 2010-05-13 2010-12-15 中原工学院 A cascade high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201672738U (en) * 2010-05-13 2010-12-15 中原工学院 A cascade high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104457027A (en) * 2014-12-02 2015-03-25 苟仲武 Improved compression heat pump working method and device

Also Published As

Publication number Publication date
CN101825374A (en) 2010-09-08

Similar Documents

Publication Publication Date Title
CN101825374B (en) Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources
CN201652663U (en) Heat recovery heat pump air conditioning system
CN201811498U (en) A dual heat source type multistage compression high temperature heat pump
CN203657051U (en) Direct condensation type air source heat pump floor heating system
CN201740299U (en) Combined heat pump heat exchange type high-temperature heat pump
WO2014111012A1 (en) Internal cold and heat balance system combining lithium bromide unit and cold storage
CN201672743U (en) A compound heat source type cascade high temperature heat pump
CN201875996U (en) Multidimensional heat pump set
CN104033199B (en) A kind of organic rankine cycle system using the built-in heat pump of mixing organic working medium
CN103982933B (en) The large temperature difference heat-exchange unit of injection-compression combined formula
CN204345840U (en) A kind of air heat energy that utilizes is for the system of the direct concurrent heating of soil heat exchanger
CN101825365A (en) Liquid-liquid middle-low temperature double heat source type cascade high-temperature heat pump
CN101799223B (en) Entire-year three-use air source heat pump unit and method for operating same
CN201387143Y (en) High-temperature energy-saving water heater device for low-temperature air source heat pump with storing and dividing device
CN102927718A (en) Novel double-effect dual-temperature high temperature heat pump device
CN206739681U (en) Big temperature difference Double-head heat pump based on heat source tower Yu underground pipe cooperation
CN201779922U (en) Indoor triple-generation ground source heat pump (GSHP) unit based on air-conditioning cooling, air-conditioning heating and sanitary hot water
CN101900458B (en) A gas-liquid medium and low temperature dual heat source type cascade high temperature heat pump
CN201672738U (en) A cascade high-temperature heat pump with a liquid medium-temperature heat source and dual low-temperature heat sources
CN106996660A (en) Big temperature difference Double-head heat pump based on heat source tower Yu underground pipe cooperation
CN115031279A (en) Geothermal energy step heating system based on double-stage absorption heat pump
CN202868984U (en) Multi-temperature zone carbon dioxide heat pump water heater
CN204227695U (en) A kind of Split hot reclaims source pump
CN101825364A (en) Cascade high-temperature heat pump with gaseous intermediate-temperature heat source and double low-temperature heat sources
CN206583136U (en) A kind of direct heat-exchanging type sewage source heat pump unit

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant