CN216204459U - Novel absorption heat pump for improving heat supply temperature - Google Patents
Novel absorption heat pump for improving heat supply temperature Download PDFInfo
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- CN216204459U CN216204459U CN202122764341.4U CN202122764341U CN216204459U CN 216204459 U CN216204459 U CN 216204459U CN 202122764341 U CN202122764341 U CN 202122764341U CN 216204459 U CN216204459 U CN 216204459U
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 22
- 239000006096 absorbing agent Substances 0.000 claims abstract description 32
- 239000003507 refrigerant Substances 0.000 claims abstract description 22
- 239000002918 waste heat Substances 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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Abstract
The invention provides a novel absorption heat pump for improving heat supply temperature, which belongs to the technical field of waste heat utilization and heat pumps and mainly comprises a first generator, a second generator, an absorber, a condenser, an evaporator, a high-temperature heat supply device, a first solution pump, a second solution pump, a first throttle valve, a second throttle valve, a first solution heat exchanger and a second solution heat exchanger; the first generator is communicated with the high-temperature heat supply device and the second generator, the high-temperature heat supply device is connected with a dilute solution pipeline from the absorber, the second generator is communicated with the absorber, the first generator is provided with a refrigerant steam pipeline which is communicated with the condenser through the second generator and a second throttle valve, the second generator is communicated with the condenser, the condenser is communicated with the evaporator, the evaporator is communicated with the absorber, the first generator is provided with a driving heat medium pipeline, the evaporator is provided with a waste heat medium pipeline, the absorber, the condenser and the high-temperature heat supply device are respectively provided with a heated medium pipeline, and a novel absorption heat pump for improving heat supply temperature is formed.
Description
The technical field is as follows:
the invention belongs to the field of heat pump/refrigeration technology and low-temperature waste heat utilization.
Background art:
the first-class absorption heat pump unit is adopted to recover waste heat resources for supplying heat, and the energy-saving, environment-friendly and economic benefits are remarkable. On the occasion that the waste heat resources are rich, if the temperature of the waste heat resources is low or the heat supply temperature required by a user is high, the heat pump unit cannot meet the heat requirement of the user due to the limitation of the generator generation temperature or the concentration of the generator working medium solution. In order to meet the heat supply requirement, a common method is to configure peak heaters or boilers and other equipment to meet the requirement of heating at a high-temperature section, so that the problems of complexity, high investment, large occupied area and the like of the whole heat supply system are caused.
When the first-class absorption heat pump unit raises the temperature of the waste heat medium, the heating function of the driving heat medium in the generator is fully exerted, and a heat supply end is added in the heat pump process to meet the heating requirement of a high-temperature section, so that a heat supply system is simplified, the heat supply engineering investment is reduced, and the floor area of equipment of the heat supply system is reduced. Meanwhile, according to different high-temperature section heating requirements, the heat supply performance index of the heat pump unit can be continuously changed within a certain range through solution heat exchange adjustment, so that the maximum high efficiency and energy conservation are realized, and the investment income is maximized.
The invention content is as follows:
the invention mainly aims to provide a novel absorption heat pump for improving heat supply temperature, and the specific contents of the invention are set forth in different terms as follows:
the novel absorption heat pump for improving the heat supply temperature mainly comprises a first generator, a second generator, an absorber, a condenser, an evaporator, a high-temperature heat supply device, a first solution pump, a second solution pump, a first throttling valve, a second throttling valve, a first solution heat exchanger and a second solution heat exchanger; the absorber is provided with a dilute solution pipeline which is connected with a concentrated solution pipeline from a high-temperature heat supply device through a first solution pump and a first solution heat exchanger and then communicated with a first generator, the first generator is respectively provided with a concentrated solution pipeline which is connected with the high-temperature heat supply device and communicated with a second generator through the first solution heat exchanger and a second solution heat exchanger, the high-temperature heat supply device is connected with a dilute solution pipeline from the absorber through a second solution pump, the second generator is provided with a concentrated solution pipeline, the second solution heat exchanger is communicated with the absorber, the first generator is provided with a refrigerant steam pipeline which is communicated with a condenser through a second generator and a second throttle valve, the second generator is provided with a refrigerant steam channel which is communicated with the condenser, the condenser is provided with a refrigerant liquid pipeline which is communicated with the evaporator through a first throttle valve, the evaporator is provided with a refrigerant steam channel which is communicated with the absorber, and the first generator is also provided with a driving heat medium pipeline which is communicated with the outside, the evaporator is also provided with a waste heat medium pipeline which is communicated with the outside, and the absorber, the condenser and the high-temperature heat supply device are respectively provided with a heated medium pipeline which is communicated with the outside, so that a novel absorption heat pump for improving the heat supply temperature is formed.
Description of the drawings:
fig. 1 is a schematic diagram of the structure and flow of a novel absorption heat pump for increasing heating temperature according to the present invention.
In the figure, 1-a first generator, 2-a second generator, 3-an absorber, 4-a condenser, 5-an evaporator, 6-a high temperature heater, 7-a first solution pump, 8-a second solution pump, 9-a first throttle valve, 10-a second throttle valve, 11-a first solution heat exchanger, 12-a second solution heat exchanger.
The specific implementation mode is as follows:
the invention is described in detail below with reference to the figures and examples.
The novel absorption heat pump for increasing the heating temperature shown in fig. 1 is realized by the following steps:
the system mainly comprises a first generator 1, a second generator 2, an absorber 3, a condenser 4, an evaporator 5, a high-temperature heat supply device 6, a first solution pump 7, a second solution pump 8, a first throttle valve 9, a second throttle valve 10, a first solution heat exchanger 11 and a second solution heat exchanger 12 in structure; the absorber 3 is provided with a dilute solution pipeline which is connected with a concentrated solution pipeline from the high-temperature heat supplier 6 through a first solution pump 7 and a first solution heat exchanger 11 and then communicated with the first generator 1, the first generator 1 is respectively provided with a concentrated solution pipeline which is connected with the high-temperature heat supplier 6 and communicated with the second generator 2 through the first solution heat exchanger 11 and a second solution heat exchanger 12, the high-temperature heat supplier 6 is connected with the dilute solution pipeline from the absorber 3 through a second solution pump 8, the second generator 2 is provided with a concentrated solution pipeline, the second solution heat exchanger 12 is communicated with the absorber 3, the first generator 1 is provided with a refrigerant steam pipeline which is communicated with the condenser 4 through a second generator 2 and a second throttle valve 10, the second generator 2 is provided with a refrigerant steam channel which is communicated with the condenser 4, the condenser 4 is provided with a refrigerant liquid pipeline which is communicated with the evaporator 5 through a first throttle valve 9, the evaporator 5 is provided with a refrigerant steam channel which is communicated with the absorber 3, the first generator 1 is also provided with a driving heat medium pipeline communicated with the outside, the evaporator 5 is also provided with a waste heat medium pipeline communicated with the outside, and the absorber 3, the condenser 4 and the high-temperature heater 6 are respectively provided with a heated medium pipeline communicated with the outside.
Secondly, in the process, the dilute solution of the absorber 3 passes through the first solution pump 7 and the first solution heat exchanger 11 and then is mixed with the low-temperature concentrated solution from the high-temperature heat supply device 6, and then enters the first generator 1, the concentrated solution of the first generator 1 is divided into two paths, the first path of concentrated solution enters the high-temperature heat supply device 6 to heat the heated medium flowing through the first path of concentrated solution, the low-temperature concentrated solution in the high-temperature heat supply device 6 is then mixed with the dilute solution from the absorber 3 through the second solution pump 8, the second path of concentrated solution enters the second generator 2 through the first solution heat exchanger 11 and the second solution heat exchanger 12, the heat medium is driven to flow through the first generator 1, simultaneously the dilute solution entering the second generator 2 is heated, the high-temperature refrigerant steam is released to be provided for the second generator 2, the high-temperature refrigerant steam from the first generator 1 releases heat, the dilute solution in the second generator 2 is condensed into the refrigerant liquid, and then enters the condenser 4 through the second throttle valve 10, the dilute solution in the second generator 2 is heated and then releases low-temperature refrigerant steam to provide for the condenser 4, the concentrated solution in the second generator 2 enters the absorber 3 through the second solution heat exchanger 12, absorbs the refrigerant steam from the evaporator 5 and releases heat to the heated medium, the refrigerant steam in the condenser 4 releases heat to the heated medium to become refrigerant liquid, the refrigerant liquid in the condenser 4 enters the evaporator 5 through the first throttle valve 9, the refrigerant liquid in the evaporator 5 is heated by the residual heat medium flowing through the refrigerant liquid to release the refrigerant steam to provide for the absorber 3, and a novel absorption heat pump for improving the heat supply temperature is formed.
The novel absorption heat pump for improving the heat supply temperature, which is provided by the invention, has the following effects and advantages:
the heat pump unit has the advantages that a high-temperature heat supply end is added, and the heat supply requirement of a user on higher temperature is met by the simplest heat pump unit process.
The requirement of the heat pump unit on the waste heat temperature is greatly reduced under the requirement of the same heat supply temperature, and the heat pump unit is wide in application range.
According to the gradual improvement of the heat supply temperature requirement in the heat supply season, the performance index of the heat pump unit can be continuous and reasonable within a certain range by adding a heat supply end.
The heat pump unit is simple in structure, high in heat supply temperature, small in occupied area compared with similar heat supply systems, low in investment and good in benefit.
In conclusion, the novel absorption heat pump for improving the heat supply temperature, provided by the invention, enriches the types and flows of the absorption heat pump, reduces the requirement of a heat pump unit on the waste heat temperature, expands and enriches the application range of the absorption heat pump, and has good creativity, novelty and practicability.
Claims (5)
1. The novel absorption heat pump for improving the heat supply temperature mainly comprises a first generator (1), a second generator (2), an absorber (3), a condenser (4), an evaporator (5), a high-temperature heat supply device (6), a first solution pump (7), a second solution pump (8), a first throttle valve (9), a second throttle valve (10), a first solution heat exchanger (11) and a second solution heat exchanger (12); the absorber (3) is provided with a dilute solution pipeline which is connected with a concentrated solution pipeline from the high-temperature heat supply device (6) through a first solution pump (7) and a first solution heat exchanger (11) and then communicated with the first generator (1), the first generator (1) is respectively provided with a concentrated solution pipeline which is connected with the high-temperature heat supply device (6) and communicated with the second generator (2) through the first solution heat exchanger (11) and a second solution heat exchanger (12), the high-temperature heat supply device (6) is connected with the dilute solution pipeline from the absorber (3) through a second solution pump (8), the second generator (2) is provided with a concentrated solution pipeline, the second solution heat exchanger (12) is communicated with the absorber (3), the first generator (1) is provided with a refrigerant steam pipeline which is communicated with the condenser (4) through the second generator (2) and a second throttle valve (10), the second generator (2) is provided with a refrigerant steam channel which is communicated with the condenser (4), condenser (4) have cryogen liquid pipeline through first choke valve (9) and evaporimeter (5) intercommunication, evaporimeter (5) have cryogen steam passage and absorber (3) intercommunication, first generator (1) also has drive heat medium pipeline and outside intercommunication, evaporimeter (5) still has waste heat medium pipeline and outside intercommunication, absorber (3), condenser (4) and high temperature heat supply ware (6) still have respectively by heating medium pipeline and outside intercommunication, form the novel absorption heat pump that is used for improving the heat supply temperature.
2. A novel absorption heat pump for increasing heating temperature as claimed in claim 1, wherein the high temperature heat supply device (6) has a heated medium pipeline in communication with the outside as a high temperature heat supply end.
3. A novel absorption heat pump for increasing the temperature of heat supply according to claim 1, wherein the absorber (3) has a dilute solution pipeline connected to the concentrated solution pipeline from the high temperature heat supply unit (6) via the first solution pump (7) and the first solution heat exchanger (11) and then connected to the first generator (1), and the high temperature heat supply unit (6) is connected to the dilute solution pipeline from the absorber (3) via the second solution pump (8).
4. A novel absorption heat pump for increasing heating temperature according to claim 1, wherein the first generator (1) is in communication with the high temperature heat supply (6) and the second generator (2) respectively, the second generator (2) is in communication with the absorber (3), and the absorber (3) and the high temperature heat supply (6) are in communication with the first generator (1) respectively.
5. An absorption heat pump according to claim 1, wherein the first generator (1) further comprises a driving heat medium pipeline communicated with the outside as a driving container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764341.4U CN216204459U (en) | 2021-11-12 | 2021-11-12 | Novel absorption heat pump for improving heat supply temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764341.4U CN216204459U (en) | 2021-11-12 | 2021-11-12 | Novel absorption heat pump for improving heat supply temperature |
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| Publication Number | Publication Date |
|---|---|
| CN216204459U true CN216204459U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122764341.4U Active CN216204459U (en) | 2021-11-12 | 2021-11-12 | Novel absorption heat pump for improving heat supply temperature |
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| Country | Link |
|---|---|
| CN (1) | CN216204459U (en) |
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2021
- 2021-11-12 CN CN202122764341.4U patent/CN216204459U/en active Active
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 1005, Xinghua building, No. 679, Lijiang West Road, West Coast new area, Qingdao, Shandong 266500 Patentee after: Dongfang Hot Valley (Qingdao) Energy Conservation Technology Engineering Co.,Ltd. Country or region after: China Address before: Room 1005, Xinghua building, No. 679, Lijiang West Road, West Coast new area, Qingdao, Shandong 266500 Patentee before: Qingdao Dongfang regu energy saving technology Engineering Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |