CN219014681U - Second-class absorption heat pump application device - Google Patents

Second-class absorption heat pump application device Download PDF

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Publication number
CN219014681U
CN219014681U CN202222926582.9U CN202222926582U CN219014681U CN 219014681 U CN219014681 U CN 219014681U CN 202222926582 U CN202222926582 U CN 202222926582U CN 219014681 U CN219014681 U CN 219014681U
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cooling tower
temperature
heat pump
condenser
generator
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CN202222926582.9U
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Chinese (zh)
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杨家华
杨晨滈
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Jiangsu Hehai New Energy Technology Development Co ltd
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Jiangsu Hehai New Energy Technology Development Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems

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Abstract

The utility model discloses a second-class absorption heat pump application device which is applied to winter and comprises an absorption heat pump and a cooling tower, wherein the absorption heat pump comprises a generator, a condenser, an evaporator and an absorber, and a low-temperature heat source is introduced into the generator and the evaporator; circulating water in the cooling tower enters a condenser heat exchange pipe for cooling and then enters a spray pipeline in the cooling tower; the absorber side provides hot water at a temperature greater than 60 ℃. According to the method, the cooling tower is used as a sacrificial cold source of the second-class heat pump, the cooling tower and the heat pump are combined into a system, a sacrificial compensation method is adopted, the natural cold source in winter is utilized to reduce the water temperature of the cooling tower to 5 ℃ and then the cooling tower enters the condenser of the lithium bromide absorption heat pump, the generator side is filled with industrial circulating water at 40 ℃, and the temperature difference between the generator and the condenser is increased by adopting the sacrificial compensation method, so that the water outlet temperature of the absorber is increased.

Description

Second-class absorption heat pump application device
Technical Field
The utility model relates to a second-class absorption heat pump application device.
Background
With the continuous exploitation and utilization of fossil energy, the problem of energy shortage is also increasingly highlighted. The waste heat resources in China are quite rich, a large amount of low-temperature circulating cooling water can be generated in the industrial production process, and the low-temperature waste heat source cannot be utilized due to low temperature, so that huge energy waste and environmental heat pollution are caused. The absorption heat pump can convert low-grade waste heat into high-grade heat energy, and plays an important role in energy conservation, consumption reduction and carbon emission reduction.
The second type of absorption heat pump is a temperature-rising heat pump, which utilizes waste heat or waste heat to convert low-grade waste heat or waste heat into high-grade heat energy for use in a production process without consuming other high-grade energy. The traditional cooling tower is only responsible for heat dissipation, and the traditional two-class heat pump only realizes sacrificing a part of heat to exchange for another part of high temperature.
Disclosure of Invention
In view of the above problems, an object of the present utility model is to provide a combined absorption heat pump and cooling tower, which utilizes a low temperature waste heat source to provide a two-type absorption heat pump application device with hot water at a temperature greater than 60 ℃.
The technical scheme for realizing the utility model is as follows
The second-class absorption heat pump application device is applied to winter and comprises an absorption heat pump and a cooling tower, wherein the absorption heat pump comprises a generator, a condenser, an evaporator and an absorber, and a heat exchange tube in the generator and a heat exchange tube in the evaporator are communicated with low-temperature heat sources with the same temperature; the inlet end of the heat exchange tube in the condenser is communicated with the circulating water outlet end in the cooling tower, the outlet end of the heat exchange tube in the condenser is communicated with the spray pipeline in the cooling tower, and the circulating water in the cooling tower enters the spray pipeline in the cooling tower after entering the heat exchange tube of the condenser for cooling; the absorber side provides hot water at a temperature greater than 60 ℃.
One embodiment in the present application: the low-temperature heat source is industrial circulating water with the temperature of 35-45 ℃, and the temperature of the circulating water of the cooling tower entering the condenser is 5-10 ℃.
One embodiment in the present application: the inlet end of the heat exchange tube of the generator and the inlet end of the heat exchange tube of the evaporator are connected in parallel, and the outlet end of the heat exchange tube of the generator and the outlet end of the heat exchange tube of the evaporator are connected in parallel.
One embodiment in the present application: the cooling tower is an open cooling tower.
According to the method, the cooling tower is used as a sacrificial cold source of the second-class heat pump, the cooling tower and the heat pump are combined into a system, a sacrificial compensation method is adopted, the natural cold source in winter is utilized to reduce the water temperature of the cooling tower to 5 ℃ and then the cooling tower enters the condenser of the lithium bromide absorption heat pump, the generator side is filled with industrial circulating water at 40 ℃, and the temperature difference between the generator and the condenser is increased by adopting the sacrificial compensation method, so that the water outlet temperature of the absorber is increased.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the drawing, 100 parts of an absorption heat pump, 101 parts of a cooling tower, 102 parts of a generator, 103 parts of a condenser, 104 parts of an evaporator, 105 parts of an absorber, 106 parts of a low-temperature heat source inlet pipe, 107 parts of a low-temperature heat source outlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.
Referring to fig. 1, a second-class absorption heat pump application device is mainly applied to winter, and comprises an absorption heat pump 100 and a cooling tower 101, wherein the absorption heat pump 100 comprises a generator 102, a condenser 103, an evaporator 104 and an absorber 105, and a heat exchange tube in the generator 102 and a heat exchange tube in the evaporator 104 are introduced with low-temperature heat sources with the same temperature; the inlet end of a heat exchange tube in the condenser 103 is communicated with the outlet end of circulating water in the cooling tower 101, the outlet end of the heat exchange tube in the condenser 103 is communicated with a spray pipeline in the cooling tower 101, and the circulating water in the cooling tower 101 enters the spray pipeline in the cooling tower 101 after entering the heat exchange tube of the condenser 103 for cooling; the absorber 105 side provides hot water at a temperature greater than 60 ℃, one end of a heat exchange tube in the absorber 105 is a cold water inlet end, and the other end is a hot water outlet end.
In the present application, the low temperature heat source is industrial circulating water with a temperature of 35 ℃ to 45 ℃, and the circulating water of the cooling tower 101 enters the condenser 103 at a temperature of 5 ℃ to 10 ℃.
In the present application, the inlet end of the heat exchange tube of the generator 102 and the inlet end of the heat exchange tube of the evaporator 104 are connected in parallel to the low-temperature heat source inlet tube 106, and the outlet end of the heat exchange tube of the generator 102 and the outlet end of the heat exchange tube of the evaporator are connected in parallel to the low-temperature heat source outlet tube 107. The low-temperature heat source inlet pipe 106 is used for allowing low-temperature heat sources to enter, and is respectively led into the heat exchange pipe in the generator 102 and the heat exchange pipe in the evaporator, and is discharged in the converging low-temperature heat source outlet pipe 107 after heat exchange.
In the application, the condenser of the absorption heat pump adopts the circulating water of the open cooling tower 101 for cooling, the natural cold source in winter is utilized to cool the water temperature of the cooling tower 101 to 5 ℃ and enter the condenser of the lithium bromide absorption heat pump, the side of the generator 102 is filled with the industrial circulating water at 40 ℃, and the water outlet temperature of the absorber is improved by increasing the temperature difference between the generator 102 and the condenser by adopting a sacrificial compensation method.
The traditional cooling tower is only responsible for heat dissipation, and the traditional two-class heat pump only realizes sacrificing a part of heat to exchange for another part of high temperature. The application utilizes low-temperature industrial circulating water to enter the generator and the evaporator in parallel, the condenser adopts the circulating water of an open cooling tower for cooling, and hot water with the temperature greater than 60 ℃ is provided at the absorber side. The cooling tower is used as a sacrificial cold source of the second-class heat pump, and the cooling tower and the heat pump are combined into a system. By adopting a sacrificial compensation method, two low-temperature heat sources (one of which enters the generator and the other of which enters the evaporator) at the temperature of 40 ℃ are adopted to generate one part of hot water at the temperature of 65 ℃ (hot water at the hot water discharge end at the side of the absorber), and the temperature difference between the generator (at the temperature of 40 ℃ and at the temperature of 35 ℃) and the condenser (at the temperature of 5 ℃ and at the temperature of 10 ℃) is increased to improve the water outlet temperature of the absorber, so that the temperature rising and recycling of industrial circulating water are realized under the condition of no high-temperature heat source.
Finally, it should be noted that: the above embodiments are merely preferred embodiments of the present utility model to illustrate the technical solution of the present utility model, but not to limit the scope of the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions; in addition, the technical scheme of the utility model is directly or indirectly applied to other related technical fields, and the technical scheme is included in the scope of the utility model.

Claims (4)

1. The second-class absorption heat pump application device is applied to winter and comprises an absorption heat pump and a cooling tower, wherein the absorption heat pump comprises a generator, a condenser, an evaporator and an absorber,
the heat exchange tube in the generator and the heat exchange tube in the evaporator are connected with low-temperature heat sources with the same temperature; the inlet end of the heat exchange tube in the condenser is communicated with the circulating water outlet end in the cooling tower, the outlet end of the heat exchange tube in the condenser is communicated with the spray pipeline in the cooling tower, and the circulating water in the cooling tower enters the spray pipeline in the cooling tower after entering the heat exchange tube of the condenser for cooling; the absorber side provides hot water at a temperature greater than 60 ℃.
2. A two-type absorption heat pump application apparatus according to claim 1, wherein the low temperature heat source is industrial circulating water with a temperature of 35 ℃ to 45 ℃, and the temperature of the circulating water of the cooling tower entering the condenser is 5 ℃ to 10 ℃.
3. A two-type absorption heat pump application apparatus according to claim 1, wherein the inlet ends of the generator heat exchange tubes and the inlet ends of the evaporator heat exchange tubes are connected in parallel, and the outlet ends of the generator heat exchange tubes and the outlet ends of the evaporator heat exchange tubes are connected in parallel.
4. A two-type absorption heat pump application according to claim 1, wherein the cooling tower is an open cooling tower.
CN202222926582.9U 2022-11-03 2022-11-03 Second-class absorption heat pump application device Active CN219014681U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222926582.9U CN219014681U (en) 2022-11-03 2022-11-03 Second-class absorption heat pump application device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222926582.9U CN219014681U (en) 2022-11-03 2022-11-03 Second-class absorption heat pump application device

Publications (1)

Publication Number Publication Date
CN219014681U true CN219014681U (en) 2023-05-12

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Application Number Title Priority Date Filing Date
CN202222926582.9U Active CN219014681U (en) 2022-11-03 2022-11-03 Second-class absorption heat pump application device

Country Status (1)

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CN (1) CN219014681U (en)

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