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CN-122015328-A - Fourth-class absorption heat pump and steam generation system based on absorption heat pump

CN122015328ACN 122015328 ACN122015328 ACN 122015328ACN-122015328-A

Abstract

The invention provides a fourth type absorption heat pump, and belongs to the technical field of heat pumps. The low temperature generator is communicated with the high temperature generator through the solution pump, the solution heat exchanger and the second solution heat exchanger, the high temperature generator is communicated with the absorber through the second solution heat exchanger, the absorber is communicated with the low temperature generator through the solution heat exchanger, the low temperature generator is communicated with the low temperature condenser, the low temperature condenser is communicated with the evaporator through the low pressure pump, the high temperature generator is communicated with the high temperature condenser, the high temperature condenser is communicated with the steam separation chamber through the spray pipe, the steam separation chamber is communicated with the high pressure steam inlet of the ejector, the steam separation chamber is communicated with the evaporator through the low temperature generator and the throttle valve, the evaporator is communicated with the low pressure steam inlet of the ejector, the ejector is communicated with the absorber, the high temperature generator is provided with a high temperature medium channel, the absorber and the high temperature condenser are communicated with a heated medium channel, the low temperature condenser is provided with a cooling medium channel and the evaporator is communicated with the outside, so as to form a fourth type of absorption heat pump.

Inventors

  • LI HONGRUI
  • LI HUAYU

Assignees

  • 李华玉

Dates

Publication Date
20260512
Application Date
20260202
Priority Date
20250203

Claims (13)

  1. 1. The fourth type of absorption heat pump mainly comprises a low-temperature generator, a solution pump, a solution heat exchanger, a second solution heat exchanger, a high-temperature generator, an absorber, a low-temperature condenser, a low-pressure pump, an evaporator, a high-temperature condenser, a spray pipe, a vapor separation chamber, an ejector and a throttle valve, wherein the low-temperature generator (1) is provided with a concentrated solution pipeline which is communicated with the high-temperature generator (5) through the solution pump (2), the solution heat exchanger (3) and the second solution heat exchanger (4), the high-temperature generator (5) is also provided with a concentrated solution pipeline which is communicated with the absorber (6) through the second solution heat exchanger (4), the absorber (6) is also provided with a dilute solution pipeline which is communicated with the low-temperature generator (1) through the solution heat exchanger (3), the low-temperature generator (1) is also provided with a refrigerant vapor channel which is communicated with the low-temperature condenser (7), the low-temperature condenser (7) is also provided with a condensate pipeline which is communicated with the evaporator (9) through the low-pressure pump (8), the high-temperature generator (5) is also provided with a high-temperature condenser (10), the high-temperature condenser (10) is also provided with a condensate vapor channel which is also communicated with the vapor inlet (12) of the condensate vapor separation chamber (12) through the low-pressure chamber (12) and the spray pipe (12) is also provided with the low-pressure chamber (12), the evaporator (9) is also provided with a low-pressure steam inlet communicated with the ejector (13), the ejector (13) is also provided with a medium-pressure refrigerant steam channel communicated with the absorber (6), the high-temperature generator (5) is also provided with a high-temperature heat medium channel communicated with the outside, the absorber (6) and the high-temperature condenser (10) are also respectively provided with a heated medium channel communicated with the outside, the low-temperature condenser (7) is also provided with a cooling medium channel communicated with the outside, and the evaporator (9) is also provided with a low-temperature heat medium channel communicated with the outside to form a fourth type of absorption heat pump.
  2. 2. In the fourth type of absorption heat pump according to claim 1, the low-temperature generator (1) is communicated with the high-temperature generator (5) through the solution pump (2), the solution heat exchanger (3) and the second solution heat exchanger (4) to adjust the low-temperature generator (1) to be communicated with the absorber (6) through the second solution pump (15) and the second solution heat exchanger (4), the absorber (6) is further communicated with the high-temperature generator (5) through the solution pump (2) and the solution heat exchanger (3), and the high-temperature generator (5) is communicated with the absorber (6) through the second solution heat exchanger (4) to adjust the high-temperature generator (5) to be communicated with the low-temperature generator (1) through the solution heat exchanger (3) and the second solution heat exchanger (4) to form the fourth type of absorption heat pump.
  3. 3. In the fourth type of absorption heat pump described in claim 1, the low temperature generator (1) is communicated with the high temperature generator (5) through the solution pump (2), the solution heat exchanger (3) and the second solution heat exchanger (4) to adjust that the low temperature generator (1) is communicated with the absorber (6) through the second solution pump (15) and the solution heat exchanger (3), the absorber (6) is also communicated with the second absorber (16) through the solution heat exchanger (3), the second absorber (16) is further communicated with the high temperature generator (5) through the solution pump (2) and the second solution heat exchanger (4), the high temperature generator (5) is communicated with the absorber (6) through the second solution heat exchanger (4) to adjust that the high temperature generator (5) is communicated with the low temperature generator (1) through the second solution heat exchanger (4), the low temperature condenser (7) and the low pressure pump (8) are canceled, and the condensate (8) are communicated with the external cooling medium (9) through the low temperature pump, the low-temperature generator (1) is communicated with the low-temperature condenser (7) through a refrigerant steam channel, so that the low-temperature generator (1) is communicated with the second absorber (16), and the second absorber (16) is also communicated with the outside through a cooling medium channel, thereby forming a fourth type of absorption heat pump.
  4. 4. A fourth type of absorption heat pump is formed by adding a compressor (a) to any one of claims 1-3, and adjusting the communication between the high temperature generator (5) with a refrigerant steam channel and the high temperature condenser (10) to the communication between the high temperature generator (5) with the refrigerant steam channel and the high temperature condenser (10) through the compressor (a).
  5. 5. A fourth type of absorption heat pump is formed by adding a compressor (a) to any one of claims 1 to 3, and adjusting the communication between the ejector (13) and the absorber (6) with the medium pressure refrigerant vapor passage so that the ejector (13) is communicated with the absorber (6) through the compressor (a) with the medium pressure refrigerant vapor passage.
  6. 6. A fourth type of absorption heat pump, wherein a two-phase expander (B) is added to any one of claims 1 to 3 and replaces a throttle valve (14) to form the fourth type of absorption heat pump.
  7. 7. A fourth type of absorption heat pump, which is formed by adding a new spray pipe (C) and replacing a throttle valve (14) in any one of claims 1-3.
  8. 8. In the absorption heat pump-based steam generating system, a second ejector (17) is added in any one of the fourth type of absorption heat pumps described in claims 1-3, a working steam channel is arranged outside and is communicated with a high-pressure steam inlet of the second ejector (17), the absorber (6) and the high-temperature condenser (10) are respectively provided with a heated medium channel which is communicated with the outside and is adjusted to be communicated with a low-pressure steam inlet of the second ejector (17) after the heated medium channel is communicated with the absorber (6) and the high-temperature condenser (10), and the second ejector (17) is also communicated with the outside through a user steam channel, so that the absorption heat pump-based steam generating system is formed.
  9. 9. In the absorption heat pump-based steam generation system, a second ejector, a high-pressure pump and a steam generator are added in any one of the fourth type absorption heat pumps described in claims 1-3, a liquid medium channel is communicated with the steam generator (19) through the high-pressure pump (18), the steam generator (19) is also communicated with a high-pressure steam inlet of the second ejector (17) through the high-pressure pump, the absorber (6) and the high-temperature condenser (10) are respectively provided with a heated medium channel communicated with the outside and are respectively provided with a low-pressure steam introducing port communicated with the second ejector (17) after the heated medium channel is communicated with the absorber (6) and the high-temperature condenser (10), the second ejector (17) is also communicated with the outside through a user steam channel, and the steam generator (19) is also communicated with the outside through a high-temperature medium channel, so that the absorption heat pump-based steam generation system is formed.
  10. 10. In the vapor generation system based on the absorption heat pump, a compressor (A) is added in any one of the vapor generation systems based on the absorption heat pump according to claims 8-9, and the high-temperature generator (5) is communicated with the high-temperature condenser (10) through a refrigerant vapor channel, so that the vapor generation system based on the absorption heat pump is formed through the communication of the high-temperature generator (5) with the refrigerant vapor channel and the high-temperature condenser (10) through the compressor (A).
  11. 11. In the absorption heat pump-based steam generating system according to any one of claims 8 to 9, a compressor (a) is added, and the connection between the ejector (13) and the absorber (6) is adjusted so that the ejector (13) has a medium-pressure refrigerant steam passage, and the ejector (6) is connected to the compressor (a) to form the absorption heat pump-based steam generating system.
  12. 12. An absorption heat pump-based steam generating system is formed by adding a two-phase expander (B) in place of a throttle valve (14) in any one of the absorption heat pump-based steam generating systems according to claims 8 to 9.
  13. 13. In the vapor generation system based on the absorption heat pump, a new spray pipe (C) is added to replace a throttle valve (14) in any one of the vapor generation systems based on the absorption heat pump according to claims 8-9, so that the vapor generation system based on the absorption heat pump is formed.

Description

Fourth-class absorption heat pump and steam generation system based on absorption heat pump Technical field: The invention belongs to the technical field of refrigeration and heat pump. The background technology is as follows: The heat pump technology is adopted to realize heat supply and steam supply, which is an important means for realizing high-efficiency and high-value utilization of energy, and in practical application, the working parameters, performance indexes, manufacturing cost, adaptability, utilization level of heat resources and the like of the heat pump need to be comprehensively considered, in particular, the full utilization of good temperature difference and high-grade heat load is the key of the heat pump to obtain reasonable performance indexes. In the fourth type of absorption heat pump system which is good at providing high-grade heat load, more high-grade heat energy is contained in condensate discharged by the high-temperature condenser, so that how to play the role of the high-temperature condenser and improve heat supply parameters and performance indexes is worth researching, and in order to provide higher-parameter steam for the outside, the restrictions on the properties of solution, refrigerant medium, heat source and the like need to be overcome. The ejector is a pressure boosting component which effectively utilizes high-temperature heat resources, has the advantages of simple structure, reliable operation, low investment and long service life, and has better adaptability to the compression of wet steam compared with a compressor. Based on the principle of simply, actively and efficiently utilizing energy to heat, the invention provides a fourth type of absorption heat pump and a steam generation system based on the absorption heat pump, which are integrated with each other, have reasonable flow, simple structure and reasonable performance index. The invention comprises the following steps: the invention mainly aims to provide a fourth type of absorption heat pump and a steam generation system based on the absorption heat pump, and the specific summary of the invention is as follows: 1. The fourth type of absorption heat pump mainly comprises a low-temperature generator, a solution pump, a solution heat exchanger, a second solution heat exchanger, a high-temperature generator, an absorber, a low-temperature condenser, a low-pressure pump, an evaporator, a high-temperature condenser, a spray pipe, a vapor separation chamber, an ejector and a throttle valve, wherein the low-temperature generator is provided with a concentrated solution pipeline which is communicated with the high-temperature generator through the solution pump, the solution heat exchanger and the second solution heat exchanger, the high-temperature generator is also communicated with the absorber through the second solution heat exchanger, the absorber is also provided with a dilute solution pipeline which is communicated with the low-temperature generator through the solution heat exchanger, the low-temperature generator is also communicated with the low-temperature condenser through the solution heat exchanger, the low-temperature condenser is also communicated with the evaporator through the low-pressure pump, the high-temperature generator is also communicated with the high-temperature condenser through the spray pipe, the condensate pipeline is also communicated with the vapor separation chamber through the spray pipe, the vapor separation chamber is also communicated with the high-pressure steam inlet of the ejector, the vapor separation chamber is also communicated with the condensate pipeline through the low-temperature generator and the throttle valve, the evaporator is also communicated with the evaporator through the refrigerant vapor channel, the low-pressure inlet, the low-temperature condenser is also communicated with the high-pressure steam channel is also communicated with the high-pressure medium-pressure condenser, the high-temperature condenser is also communicated with the external medium, the external medium is respectively, the high-pressure medium channel is communicated with the external medium, the high-pressure medium and the high-pressure medium is communicated with the external medium. 2. In the fourth type of absorption heat pump according to item 1, the low temperature generator has a concentrated solution pipeline, which is communicated with the high temperature generator through the solution pump, the solution heat exchanger and the second solution heat exchanger, so that the low temperature generator has a concentrated solution pipeline, which is communicated with the absorber through the second solution pump and the second solution heat exchanger, and the absorber has a dilute solution pipeline, which is communicated with the high temperature generator through the solution pump and the solution heat exchanger, so that the high temperature generator has a concentrated solution