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CN-121993772-A - Steam generation system based on third-class injection-absorption heat pump

CN121993772ACN 121993772 ACN121993772 ACN 121993772ACN-121993772-A

Abstract

The invention provides a steam generation system based on a third type of injection-absorption heat pump, and belongs to the technical field of heat pumps. The low temperature generator is communicated with the evaporator through the low temperature condenser and the low pressure pump, the high temperature generator is communicated with the low pressure steam inlet of the ejector, the ejector is communicated with the high temperature condenser, the high temperature condenser is communicated with the evaporator through the throttle valve, the evaporator is communicated with the absorber, the high temperature condenser is communicated with the steam generator through the high pressure pump, the steam generator is communicated with the high pressure steam inlet of the ejector, a heated medium channel is arranged outside and is communicated with the low pressure steam inlet of the second ejector through the absorber and the high temperature condenser, a working steam channel is arranged outside and is communicated with the high pressure steam inlet of the second ejector, the second ejector is provided with a user steam channel and is communicated with the outside, and the high temperature generator, the steam generator, the low temperature generator, the evaporator and the low temperature condenser are provided with a heat source medium channel and are communicated with the outside.

Inventors

  • LI HUAYU
  • LI HONGRUI

Assignees

  • 李华玉

Dates

Publication Date
20260508
Application Date
20260111
Priority Date
20250121

Claims (12)

  1. 1. The third type of injection-absorption heat pump-based steam generation system 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, an ejector, a high-temperature condenser, a throttle valve, a high-pressure pump, a steam generator and a second ejector, 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 steam 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 condensate steam channel which is communicated with the low-pressure steam channel (10) through the low-pressure steam channel (10) which is also communicated with the low-pressure evaporator (11) through the throttle valve (11), the high-temperature condenser (11) is also communicated with the steam generator (14) through a high-pressure pump (13), the steam generator (14) is also communicated with a high-pressure steam inlet of the ejector (10) through a refrigerant steam channel, a heated medium channel is arranged outside and is communicated with a low-pressure steam inlet of the second ejector (15) after passing through the absorber (6) and the high-temperature condenser (11), a working steam channel is arranged outside and is communicated with the high-pressure steam inlet of the second ejector (15), the second ejector (15) is also communicated with the outside through a user steam channel, the high-temperature generator (5) and the steam generator (14) are also respectively communicated with the outside through a low-temperature medium channel, the low-temperature generator (1) and the evaporator (9) are also respectively communicated with the outside through a cooling medium channel, and a steam generating system based on a third type of injection-absorption heat pump is formed.
  2. 2. In the steam generating system based on the third-class injection-absorption heat pump, a working steam channel which is externally communicated with a high-pressure steam inlet of a second injector (15) is canceled, a second high-pressure pump (16) is added, a liquid medium channel is externally communicated with a steam generator (14) through the second high-pressure pump (16), and the steam generator (14) is additionally provided with a refrigerant steam channel which is communicated with the high-pressure steam inlet of the second injector (15), so that the steam generating system based on the third-class injection-absorption heat pump is formed.
  3. 3. In the steam generating system based on the third-class injection-absorption heat pump according to claim 1, a working steam channel which is externally communicated with a high-pressure steam inlet of a second injector (15) is omitted, a second high-pressure pump (16) and a second steam generator (17) are additionally arranged, a liquid medium channel is externally communicated with the second steam generator (17) through the second high-pressure pump (16), the second steam generator (17) is also communicated with the high-pressure steam inlet of the second injector (15), and the second steam generator (17) is also communicated with the outside through a high-temperature heat medium channel to form the steam generating system based on the third-class injection-absorption heat pump.
  4. 4. In any one of the steam generating systems based on the third-class injection-absorption heat pump according to the claims 1-3, a condensate pipeline of a high-pressure pump (13) and a high-temperature condenser (11) communicated with a steam generator (14) through the high-pressure pump (13) is omitted, the steam generator (14) and a refrigerant steam channel communicated with an external high-temperature medium channel and a high-pressure steam inlet of an injector (10) are omitted, a working steam channel is additionally arranged outside and communicated with the high-pressure steam inlet of the injector (10), and the condensate pipeline is additionally arranged on the high-temperature condenser (11) and is communicated with the outside, so that the steam generating system based on the third-class injection-absorption heat pump is formed.
  5. 5. In any one of the steam generating systems based on the third-class injection-absorption heat pump according to claims 1-4, 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 be adjusted to be communicated with the low-temperature generator (1) through the solution pump (18) 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), the high-temperature generator (5) is communicated with the absorber (6) through the second solution heat exchanger (4) to be adjusted to be communicated with the low-temperature generator (1) through the solution heat exchanger (3) and the second solution heat exchanger (4) through the concentrated solution pipeline, and the third-class injection-absorption heat pump based steam generating system is formed.
  6. 6. In any one of the steam generating systems based on the third-type injection-absorption heat pump described in claims 1-4, 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 be adjusted to be communicated with the low-temperature generator (1) through the solution pump (2), the solution heat exchanger (3) and the absorber (6), the absorber (6) is also communicated with the second absorber (19) through the solution heat exchanger (3) through the dilute solution pipeline, the second absorber (19) is further communicated with the high-temperature generator (5) through the solution pump (2) and the second solution heat exchanger (4) through the dilute solution pipeline, the high-temperature generator (5) is communicated with the absorber (6) through the second solution heat exchanger (4) to be adjusted to be communicated with the high-temperature generator (5) through the concentrated solution pipeline through the second solution heat exchanger (4) and the low-temperature generator (1) through the second solution heat exchanger (18) and the low-temperature heat exchanger (19), the condensate (7) and the low-temperature pump (8) are canceled from being communicated with the low-temperature pump (7) through the low-temperature heat exchanger (8) and the condensate (9) through the condensate pump and the condensate (9) of the condensate medium, 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 (19), and the second absorber (19) is also communicated with the outside through a cooling medium channel, thereby forming a steam generation system based on a third type of injection-absorption heat pump.
  7. 7. In the steam generating system based on the third-class injection-absorption heat pump, a compressor (A) is added in any one of the steam generating systems based on the third-class injection-absorption heat pump, and a low-pressure steam inlet of a high-temperature generator (5) with a refrigerant steam channel communicated with an injector (10) is adjusted to be a low-pressure steam inlet of the high-temperature generator (5) with a refrigerant steam channel communicated with the injector (10) through the compressor (A), so that the steam generating system based on the third-class injection-absorption heat pump is formed.
  8. 8. In any one of the steam generating systems based on the third-class jet-absorption heat pump according to claims 1-6, a compressor (A) is added, and the communication between the evaporator (9) and the absorber (6) is adjusted to be that the evaporator (9) is communicated with the refrigerant steam channel and the absorber (6) through the compressor (A), so that the steam generating system based on the third-class jet-absorption heat pump is formed.
  9. 9. A steam generating system based on a third type of injection-absorption heat pump is formed by adding a two-phase expander (B) and replacing a throttle valve (11) in any one of the steam generating systems based on a third type of injection-absorption heat pump according to claims 1-8.
  10. 10. In the steam generating system based on the third-class injection-absorption heat pump according to any one of claims 1-7, a spray pipe (C) is added to replace a throttle valve (11), a diffusion pipe (D) is added, the evaporator (9) is communicated with the absorber (6) through a refrigerant steam channel, and the evaporator (9) is communicated with the absorber (6) through the diffusion pipe (D) to form the steam generating system based on the third-class injection-absorption heat pump.
  11. 11. In any one of the steam generating systems based on the third-class jet-absorption heat pump according to claims 1-7, a spray pipe (C) is added to replace a throttle valve (11), a dual-energy compressor (E) is added, the communication of a refrigerant steam channel of an evaporator (9) with an absorber (6) is adjusted, and the refrigerant steam channel of the evaporator (9) is communicated with the absorber (6) through the dual-energy compressor (E), so that the steam generating system based on the third-class jet-absorption heat pump is formed.
  12. 12. In any one of the steam generating systems based on the third-class jet-absorption heat pump according to claims 1 to 11, the low-pressure steam inlet of the second ejector (15) is communicated after the heated medium passage passes through the absorber (6) and the high-temperature condenser (11) and is adjusted to be communicated with the low-pressure steam inlet of the second ejector (15) after the heated medium passage passes through the high-temperature condenser (11) and the absorber (6), so that the steam generating system based on the third-class jet-absorption heat pump is formed.

Description

Steam generation system based on third-class injection-absorption heat pump Technical field: the invention belongs to the technical field of refrigeration and heat pump. The background technology is as follows: The energy source is needed to realize refrigeration and high-efficiency heat supply, advanced heat pump technology is needed, and the sectional utilization of the variable-temperature heat resource is an effective means for improving the utilization efficiency and the utilization value of the variable-temperature heat resource. The steam with different parameters is needed in the life and production process of people, and the heat pump technology is adopted to provide the steam, so that the energy is an important means for realizing high-efficiency and high-value utilization; in practical applications, the working parameters, performance index, manufacturing cost, adaptability, utilization level of heat resources and the like of the heat pump need to be comprehensively considered. 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. The absorption heat pump technology has advantages of low cost and direct application of heat energy as driving energy, however, when a user needs steam, the ability to produce steam is greatly limited due to the limitations of solution, refrigerant medium and heat source properties. For example, when the medium temperature heat source is low in temperature and the user needs high pressure steam, it is often difficult to directly produce suitable steam by the third type of absorption heat pump using lithium bromide aqueous solution as the working medium. Based on the principle of simply, actively, safely and efficiently utilizing energy sources to heat, the invention provides a steam generation system based on a third type injection-absorption heat pump, which has the advantages of technical integration, reasonable flow, simple structure, low manufacturing cost, wide working range and reasonable performance index. The invention comprises the following steps: The main object of the present invention is to provide a steam generating system based on a third type of injection-absorption heat pump, the specific summary of which is set forth in the following: 1. The steam generation system based on the third type of injection-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, an ejector, a high-temperature condenser, a throttle valve, a high-pressure pump, a steam generator and a second ejector; the low temperature generator is provided with a concentrated solution pipeline which is communicated with the high temperature generator through a solution pump, a solution heat exchanger and a second solution heat exchanger, the high temperature generator is also provided with a concentrated solution pipeline which is 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 provided with a refrigerant steam channel which is communicated with the low temperature condenser through the low pressure pump, the low temperature condenser is also provided with a condensate pipeline which is communicated with the evaporator through the low pressure steam leading-in port of the ejector, the ejector is also provided with a medium pressure refrigerant steam channel which is communicated with the high temperature condenser, the high temperature condenser is also provided with a condensate pipeline which is communicated with the evaporator through the throttle valve, the evaporator is also provided with a refrigerant steam channel which is communicated with the absorber through the high pressure pump, the steam generator is also provided with a refrigerant steam channel which is communicated with the ejector high pressure steam inlet, the outside is provided with a heated medium channel which is communicated with the second ejector high pressure steam leading-in port through the absorber and the high temperature condenser, the outside is also provided with a working steam channel which is communicated with the second ejector high pressure steam inlet, the second ejector high temperature channel which is communicated with the low temperature generator is also communicated with the low temperature generator through the low temperature channel which is respectively communicated with the low temperature generator, the low-temperature condenser is also communicat