WO2013075260A1

WO2013075260A1 - Second-type absorption heat pump with fractional condensation

Info

Publication number: WO2013075260A1
Application number: PCT/CN2011/001936
Authority: WO
Inventors: 李华玉
Original assignee: Li Huayu
Priority date: 2011-11-21
Filing date: 2011-11-21
Publication date: 2013-05-30

Abstract

Disclosed is a second-type absorption heat pump with fractional condensation, wherein a first absorber (3) has a weak solution conduit in communication with a first generator (1) via a first solution pump (7) and a first solution heat exchanger (10); the first generator (1) also has a strong solution conduit in communication with the first absorber (3) via the first solution heat exchanger (10). The first generator (1) has a refrigerant vapour channel in communication with a condenser (5). The condenser (5) further has a refrigerant liquid conduit in communication with an evaporator (6) via a refrigerant liquid pump (9). The evaporator (6) further has a refrigerant vapour channel in communication with a second absorber (4). The second absorber (4) has a weak solution conduit in communication with a second generator (2) via a second solution heat exchanger (11). The second generator (2) further has a strong solution conduit in communication with the second absorber (4) via a second solution pump (8) and the second solution heat exchanger (11). The second generator (2) further has a refrigerant vapour channel in communication with the first absorber (3). The first generator (1), the second generator (2) and the evaporator (6) further have, respectively, a waste heat medium conduit in communication with the exterior. The first absorber (3) and the condenser (5) further have, respectively, a cooling medium conduit in communication with the exterior. The second absorber (4) further has a heated medium conduit in communication with the exterior.

Description

Graded condensation second type absorption heat pump

Technical field:

The invention belongs to the technical field of low temperature waste heat utilization heat pump.

BACKGROUND OF THE INVENTION In the case where the waste heat resources are abundant, the use of the second type of absorption heat pump technology for waste heat utilization is an effective means, and has relatively good energy saving, environmental protection and economic benefits. Increasing the heat from the residual heat temperature to the level required by the user is a prerequisite for realizing the utilization of low temperature waste heat. In the case of rich residual heat resources, if the temperature of the residual heat is relatively low, or the user's hot temperature requirement is relatively high, the heating temperature of the single-stage second-type absorption heat pump cannot meet the user's requirements. Class or tertiary second type absorption heat pump.

Using a heat pump to raise the temperature of the residual heat to the level required by the user is the primary condition for energy savings. In addition to this, the cooling medium should be considered. In many cases, the cooling medium uses a non-phase change medium to remove some of the residual heat to a lower temperature. Go in the temperature environment. At this time, when there are two or more cooling ends, it will be beneficial to reduce the heat transfer temperature difference of the cooling section; when the regenerative process is adopted and the regenerative cooling end is used, not only the heat transfer of the cooling section can be reduced. The temperature difference can also make the performance index of the second type of absorption heat pump continuous within a certain range.

Summary of the invention:

The main object of the present invention is to provide a staged condensing type II absorption heat pump, and the specific contents of the invention are as follows:

1. Staged condensation type II absorption heat pump, mainly by first generator, second generator, first absorber, second absorber, condenser, evaporator, first solution pump, second solution pump, cold a first liquid pump, a first solution heat exchanger and a second solution heat exchanger; the first absorber has a dilute solution line connected to the first generator via the first solution pump and the first solution heat exchanger, first The generator also has a concentrated solution line connected to the first absorber via the first solution heat exchanger, the first generator and the refrigerant vapor channel are connected to the condenser, and the condenser and the refrigerant liquid line are passed through the coolant liquid. The pump is in communication with the evaporator, the evaporator and the refrigerant vapor passage are in communication with the second absorber, the second absorber and the dilute solution line are connected to the second generator via the second solution heat exchanger, and the second generator is further The concentrated solution line is in communication with the second absorber via the second solution pump and the second solution heat exchanger, and the second generator further has a refrigerant vapor passage communicating with the first absorber, the first generator and the second generator And the evaporator also has a residual heat The quality pipeline is connected to the outside, and the first absorber and the condenser respectively have a cooling medium pipeline communicating with the outside, and the second absorber and the heated medium pipeline are connected to the outside to form a classification and condensation type II absorption heat pump.

2. The grading and condensing of the second type of absorption heat pump is to increase the third generator, the third absorber, the third solution pump and the third solution heat exchange in the staged condensing type II absorption heat pump described in the first item. The second absorber has a dilute solution line connected to the second generator via the second solution heat exchanger to adjust the second absorber to have a dilute solution line connected to the third absorber via the second solution heat exchanger. The third absorber further has a dilute solution line connected to the second generator via the third solution pump and the third solution heat exchanger, and the second generator has a concentrated solution line through the second solution pump and the second solution for heat exchange The second generator has a concentrated solution line connected to the third generator via the third solution heat exchanger, and the third generator has a concentrated solution line through the second solution pump and the second The solution heat exchanger is in communication with the second absorber, the third generator further has a refrigerant vapor passage communicating with the third absorber, the third generator and the waste heat medium conduit are in communication with the outside, and the third absorber and the cooling medium The pipeline is connected to the outside, shaped Having a fractional condensation regenerator cold end of the second absorption heat pump.

3. The grading and condensing of the second type of absorption heat pump is the addition of a new generator, a new absorber, a new solution pump and a new solution heat exchange in the staged condensing type II absorption heat pump described in item 1. The first generator has a concentrated solution pipeline connected to the first absorber through the first solution heat exchanger to adjust the first generator to have a concentrated solution pipeline connected to the newly added generator through the first solution heat exchanger. The new generator and the concentrated solution pipeline are connected to the first absorber through the new solution heat exchanger, The first absorber has a dilute solution line connected to the first generator via the first solution pump and the first solution heat exchanger to adjust the first absorber to have a dilute solution line through the first solution pump and the new solution heat exchanger Connected with the new absorber, the new absorber and the dilute solution pipeline are connected to the first generator via the new solution pump and the first solution heat exchanger. The new generator also has a refrigerant vapor channel and new absorption. The device is connected, the new generator and the residual heat medium pipeline are connected to the outside, and the newly added absorber and the cooling medium pipeline communicate with the outside to form a graded condensation second type absorption heat pump with a regenerative cooling end.

4. The grading and condensing of the second type of absorption heat pump is the addition of a new generator, a new absorber, a new solution pump and a new solution heat exchange in the staged condensing type II absorption heat pump described in item 2. The first generator has a concentrated solution pipeline connected to the first absorber through the first solution heat exchanger to adjust the first generator to have a concentrated solution pipeline connected to the newly added generator through the first solution heat exchanger. The new generator further has a concentrated solution pipeline connected to the first absorber through the new solution heat exchanger, and the first absorber has a dilute solution pipeline through the first solution pump and the first solution heat exchanger and the first occurrence The communication is adjusted to be that the first absorber has a dilute solution pipeline connected to the newly added absorber through the first solution pump and the new solution heat exchanger, and the new absorber has a dilute solution pipeline through the newly added solution pump and the first The solution heat exchanger is connected to the first generator, the new generator and the refrigerant vapor channel are connected with the newly added absorber, the new generator and the waste heat medium pipeline are connected to the outside, and the new absorber and the cooling medium are added. The pipeline is connected to the outside to form A staged condensing second type absorption heat pump having a regenerative cooling end.

5. The staged condensing type II absorption heat pump is a second type of condensing type second type absorption heat pump according to any one of items 1-4, adding a second condenser and a second refrigerant liquid pump, the second generator The refrigerant vapor passage is connected to the second condenser, the second condenser and the refrigerant liquid pipeline are connected to the evaporator via the second refrigerant liquid pump, and the second condenser and the cooling medium pipeline are connected to the outside to form A graded condensate second type absorption heat pump that includes a single stage process.

6. The grading and condensing type II absorption heat pump is a second type of condensing liquid pump in any of the grading and condensing type II absorption heat pumps described in items 1-4, and the cooling medium that connects the condenser to the outside is removed. The pipeline and the condenser add a refrigerant liquid pipeline to communicate with the condenser through the second refrigerant liquid pump, and then the condenser further has a refrigerant vapor passage communicating with the first absorber to form a staged condensation second type absorption heat pump.

7. The grading and condensing of the second type of absorption heat pump is to increase the throttle valve in any of the classified condensing type II absorption heat pumps described in items 1-4, and to cancel the cooling medium line connecting the condenser to the outside. The evaporator adds a refrigerant liquid pipeline through the throttle valve to communicate with the condenser, and then the condenser further has a refrigerant vapor passage communicating with the first absorber to form a staged condensation second type absorption heat pump.

8. The grading and condensing of the second type of absorption heat pump is to add the second refrigerant liquid pump, cancel the condenser and add the new absorber in any of the classified condensing type II absorption heat pumps described in item 3-4. a cooling medium pipeline connected to the outside, the condenser adding a refrigerant liquid pipeline is connected to the newly added absorber and the condenser through the second coolant liquid pump, and then the condenser has a refrigerant vapor passage communicating with the first absorber, Or the condenser is further provided with a refrigerant liquid pipeline connected to the condenser and the newly added absorber through the second refrigerant liquid pump, and then the absorber is newly added, and then the refrigerant vapor passage is connected with the first absorber to form a graded condensation second type. Absorption heat pump.

9. Staged Condensation The second type of absorption heat pump is a stepped condensing type II absorption heat pump according to item 3-4. The throttle valve is added, and the condenser and the newly added absorber are respectively connected to the outside. The cooling medium pipeline, the evaporator adding refrigerant liquid pipeline is connected with the newly added absorber and the condenser through the throttle valve, and then the condenser has a refrigerant vapor passage to communicate with the first absorber, or the evaporator is added with a refrigerant. The liquid pipeline is connected with the condenser and the newly added absorber through the throttle valve, and then the absorber is newly added, and then the refrigerant vapor passage is connected with the first absorber to form a classification and condensation type II absorption heat pump.

10. The grading and condensing of the second type of absorption heat pump is to increase the absorption-evaporator, the second refrigerant liquid pump and the third absorber in any of the classified condensing type II absorption heat pumps described in items 1 and 3. a third solution pump and a third solution heat exchanger, wherein the second absorber has a dilute solution line connected to the second generator via the second solution heat exchanger to adjust to a second absorber having a dilute solution line directly and absorbing - evaporator connection, absorption-evaporator and dilute solution line through third solution pump and third solution heat exchange The third absorber is connected to the third absorber, and the third absorber is connected to the second generator via the third solution heat exchanger and the second solution heat exchanger, and the evaporator is provided with a refrigerant vapor channel and absorption-evaporation. The condenser is connected to the condenser, and the refrigerant liquid pipeline is connected to the absorption-evaporator through the second refrigerant liquid pump, and then the absorption-evaporator is connected to the third absorber through the refrigerant vapor passage, and the third absorber is heated. The medium pipe communicates with the outside to form a second type of absorption heat pump for heat classification and condensation at both ends.

11. The staged condensing type II absorption heat pump is an absorption-evaporator, a second refrigerant liquid pump, and a third absorber in any of the classified condensing type II absorption heat pumps described in items 1 and 3. a third solution pump and a third solution heat exchanger, wherein the second absorber has a dilute solution line connected to the second generator via the second solution heat exchanger to be adjusted to a second absorber having a dilute solution line through the third The solution pump and the third solution heat exchanger are in communication with the third absorber, the third absorber and the dilute solution line are connected to the absorption-evaporator via the third solution heat exchanger, and the absorption-evaporator has a dilute solution line The second solution heat exchanger is connected to the second generator, and the evaporator adds a refrigerant vapor channel to communicate with the absorption-evaporator, and the condenser adds a refrigerant liquid pipeline through the second coolant liquid pump to communicate with the absorption-evaporator. The absorption-evaporator further has a refrigerant vapor passage communicating with the third absorber, and the third absorber is further connected to the outside by the heated medium line to form a second type of absorption heat pump for heat classification and condensation at both ends.

12. The grading and condensing type II absorption heat pump is a step of adding a new refrigerant liquid pump and a second evaporator in any of the classified condensing type II absorption heat pumps described in items 10-11, and canceling the evaporator and a refrigerant vapor passage connected to the absorption-evaporator, and a refrigerant liquid line connected to the condenser is connected to the second evaporator via a new refrigerant liquid pump, and the second evaporator and the refrigerant vapor passage are connected to the absorption-evaporator. The second evaporator also has a residual heat medium line communicating with the outside to form a staged condensing second type absorption heat pump.

13. A staged condensing type II absorption heat pump, wherein in any of the staged condensing type II absorption heat pumps of claim 10, a new throttle valve, a second evaporator and a solution throttle valve are added, The second absorber has a dilute solution pipeline directly connected to the absorption-evaporator to adjust to a second absorber having a dilute solution pipeline connected to the absorption-evaporator via the solution throttle valve, and the refrigerant connected to the absorption-evaporator is eliminated. The steam passage, the evaporator adding refrigerant liquid pipeline is connected to the second evaporator via a new throttle valve, the second evaporator has a refrigerant vapor passage communicating with the absorption-evaporator, and the second evaporator has a waste heat medium pipe The road is connected to the outside to form a staged condensing type II absorption heat pump.

14. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps of claim 11, adding a new throttle valve and a second evaporator, canceling the evaporator and absorbing-evaporating The refrigerant vapor passage connected to the evaporator, the refrigerant liquid pipeline connected to the evaporator is connected to the second evaporator via a new throttle valve, and the second evaporator has a refrigerant vapor passage communicating with the absorption-evaporator, the second evaporator The residual heat medium pipe is connected to the outside to form a staged condensing type II absorption heat pump.

15. The grading and condensing type II absorption heat pump is any of the grading and condensing type II absorption heat pumps described in item 1-2, adding an absorption-evaporator, a second refrigerant liquid pump, and a new absorber. a new solution pump and a new solution heat exchanger, and the first absorber has a dilute solution line connected to the first generator through the first solution pump and the first solution heat exchanger to adjust the first absorber to a dilute solution The pipeline is directly connected to the absorption-evaporator, and the absorption-evaporator and the dilute solution pipeline are connected to the newly-added absorber through the first solution pump and the new solution heat exchanger, and the new absorber and the dilute solution pipeline are added. The new solution pump and the first solution heat exchanger are connected to the first generator, and the first generator has a concentrated solution pipeline connected to the first absorber through the first solution heat exchanger to adjust the first generator to have a concentrated solution. The pipeline is connected to the first absorber via the first solution heat exchanger and the new solution heat exchanger, and the condenser is provided with a refrigerant liquid pipeline connected to the absorption-evaporator through the second refrigerant liquid pump, and then the absorption-evaporator is further a refrigerant vapor passage is connected to the newly added absorber, The second generator adds a refrigerant vapor channel to communicate with the absorption-evaporator, and the new absorber and the cooling medium line communicate with the outside to form a staged condensation type II absorption heat pump.

16. Staged Condensation The second type of absorption heat pump is an absorption-evaporator, a second refrigerant pump, and a new absorber in any of the classified condensate type II absorption heat pumps described in item 1-2. a new solution pump and a new solution heat exchanger, and the first absorber has a dilute solution line connected to the first generator through the first solution pump and the first solution heat exchanger to adjust the first absorber to a dilute solution The first solution pump and the new solution heat exchanger in the pipeline are connected to the newly added absorber, and the new absorber and the dilute solution are added. The pipeline is connected to the absorption-evaporator via the new solution heat exchanger, and the absorption-evaporator and the dilute solution pipeline are connected to the first generator via the new solution pump and the first solution heat exchanger, and the condenser is provided with a refrigerant. The liquid pipeline is connected to the absorption-evaporator through the second refrigerant liquid pump, and then the absorption-vaporizer and the refrigerant vapor passage are connected with the newly added absorber, and the second generator is connected with the refrigerant vapor passage and communicates with the absorption-evaporator. The new absorber and the cooling medium line communicate with the outside to form a staged condensing type II absorption heat pump.

17. The staged condensing type II absorption heat pump is mainly composed of a first generator, a second generator, a third generator, a first absorber, a second absorber, a third absorber, a condenser, an evaporator, and a first a solution pump, a second solution pump, a third solution pump, a refrigerant liquid pump, a first solution heat exchanger, a second solution heat exchanger and a third solution heat exchanger; the first absorber has a dilute solution tube The first solution pump and the first solution heat exchanger are in communication with the first generator, and the first generator and the concentrated solution line are in communication with the first absorber via the first solution heat exchanger, and the first generator further comprises The refrigerant vapor passage is connected to the condenser, and the condenser and the refrigerant liquid pipeline are connected to the evaporator through the refrigerant liquid pump, the evaporator and the refrigerant vapor passage are connected with the third absorber, and the third absorber is also thin. The solution line is in communication with the third generator via the third solution heat exchanger, and the third generator and the concentrated solution line are in communication with the third absorber via the third solution pump and the third solution heat exchanger, the third generator There is also a refrigerant vapor channel and a second The absorber is connected, the second absorber and the dilute solution line are connected to the second generator via the second solution pump and the second solution heat exchanger, and the second generator has a concentrated solution line through the second solution heat exchanger Communicating with the second absorber, the second generator further has a refrigerant vapor passage communicating with the first absorber, and the first generator, the second generator, the third generator, and the evaporator further have a residual heat medium conduit and an outer portion, respectively In connection, the first absorber, the second absorber and the condenser further have a cooling medium pipeline communicating with the outside, and the third absorber and the heated medium pipeline are connected to the outside to form a stepwise condensation type II absorption heat pump.

18. The staged condensing type II absorption heat pump is characterized in that in the staged condensing type II absorption heat pump of item 17, the second condenser and the second refrigerant liquid pump are added, and the second generator is provided with a refrigerant vapor. The passage is connected to the second condenser, the second condenser and the refrigerant liquid pipeline are connected to the evaporator via the second refrigerant liquid pump, and the second condenser and the cooling medium pipeline are connected to the outside to form a two-stage flow. The grading condensing of the second type of absorption heat pump.

19. The grading and condensing type II absorption heat pump is a third type generator, a third solution pump, and a third solution heat exchanger in any of the classified condensing type II absorption heat pumps described in items 1 and 3. And a throttle valve, the second absorber adds a dilute solution pipeline to communicate with the third generator via the third solution heat exchanger, and the third generator further has a concentrated solution pipeline through the third solution pump and the third solution heat exchanger Communicating with the second absorber, the second generator has a refrigerant vapor passage communicating with the first absorber, and the second generator has a refrigerant vapor passage communicating with the third generator, and the third generator is further provided with a refrigerant liquid The pipeline communicates with the condenser via a throttle valve, and the third generator further has a refrigerant vapor passage communicating with the first absorber to form a staged condensation second type absorption heat pump.

20. The grading and condensing type II absorption heat pump is a third type generator, a third solution heat exchanger and a throttle valve added to any of the staged condensing type II absorption heat pumps described in items 1 and 3. The second generator has a concentrated solution pipeline connected to the second absorber through the second solution pump and the second solution heat exchanger to adjust the second generator to have a concentrated solution pipeline through the third solution heat exchanger and the third occurrence The third generator further has a concentrated solution line connected to the second absorber via the second solution pump, the third solution heat exchanger and the second solution heat exchanger, and the second generator has a refrigerant vapor channel and The first absorber is connected to be adjusted so that the second generator has a refrigerant vapor passage communicating with the third generator, and then the third generator is further connected with the refrigerant liquid pipeline through the throttle valve to the condenser, and the third generator is further cooled The agent vapor passage is in communication with the first absorber to form a staged condensation second type absorption heat pump.

21. The grading and condensing type II absorption heat pump is a third type generator, a third solution pump, and a third solution heat exchanger in any of the classified condensing type II absorption heat pumps described in items 1 and 3. And a throttle valve, the second absorber has a dilute solution line connected to the second generator through the second solution heat exchanger to adjust the second absorber to have a dilute solution line through the second solution heat exchanger and the third occurrence The third generator further has a concentrated solution line connected to the second generator via the third solution pump and the third solution heat exchanger, and the second generator has a concentrated solution line through the second solution pump and the second Solution heat exchanger and second absorber The communication is adjusted to be that the second generator has a concentrated solution pipeline that communicates with the second absorber via the third solution heat exchanger, the second solution pump, and the second solution heat exchanger, and the second generator has a refrigerant vapor passage and a second An absorber is connected to adjust to a second generator having a refrigerant vapor passage communicating with the third generator, and then the third generator is further connected to the condenser via a throttle line, and the third generator is further provided with a refrigerant The steam passage communicates with the first absorber to form a staged condensing second type absorption heat pump.

22. The staged condensing type II absorption heat pump is a second type of condensing type second type absorption heat pump according to any one of the items 1 and 3, wherein the second condenser, the second refrigerant liquid pump, and the third generator are added. a third solution pump, a third solution heat exchanger and a throttle valve, the second absorber is provided with a dilute solution line connected to the third generator via the third solution heat exchanger, and the third generator has a concentrated solution line The third solution pump and the third solution heat exchanger are in communication with the second absorber, and the second generator has a refrigerant vapor passage communicating with the first absorber to adjust the second generator to have a refrigerant vapor passage and a third occurrence After the device is connected, the third generator further has a refrigerant liquid pipeline connected to the second condenser or the condenser via a throttle valve, and the third generator further has a refrigerant vapor passage communicating with the first absorber, and the third generator further a refrigerant vapor passage is connected to the second condenser, a second condenser and a refrigerant liquid pipeline are connected to the evaporator via the second refrigerant liquid pump, and the second condenser and the cooling medium pipeline are connected to the outside to form Graded condensing the second type of absorption heat pump.

23. The staged condensing type II absorption heat pump is a second type of condensing type second type absorption heat pump according to any one of the items 1 and 3, wherein the second condenser, the second refrigerant liquid pump, and the third generator are added. a third solution heat exchanger and a throttle valve, wherein the second generator has a concentrated solution line connected to the second absorber through the second solution pump and the second solution heat exchanger to adjust the second generator to have a concentrated solution tube The third solution heat exchanger is in communication with the third generator, and the third generator further has a concentrated solution line connected to the second absorber via the second solution pump, the third solution heat exchanger and the second solution heat exchanger a second generator having a refrigerant vapor passage communicating with the first absorber to adjust the second generator to have a refrigerant vapor passage communicating with the third generator, the third generator having a refrigerant liquid conduit through the throttle valve Communicating with the second condenser or the condenser, the third generator further has a refrigerant vapor passage communicating with the first absorber, the third generator having a refrigerant vapor passage communicating with the second condenser, and the second condenser The refrigerant liquid pipeline passes through the second refrigerant liquid pump and the evaporator Connected, the second condenser and the cooling medium line communicate with the outside to form a staged condensing type II absorption heat pump.

24. The staged condensing type II absorption heat pump is a second condenser, a second refrigerant liquid pump, and a third generator in any of the classified condensing type II absorption heat pumps described in items 1 and 3. a third solution pump, a third solution heat exchanger and a throttle valve, and the second absorber has a dilute solution line connected to the second generator via the second solution heat exchanger to adjust the second absorber to a dilute solution tube The second solution heat exchanger is in communication with the third generator, and the third generator further has a concentrated solution line connected to the second generator via the third solution pump and the third solution heat exchanger, and the second generator has The concentrated solution pipeline is connected to the second absorber through the second solution pump and the second solution heat exchanger to adjust the second generator to have a concentrated solution pipeline through the third solution heat exchanger, the second solution pump and the second solution heat The exchanger is in communication with the second absorber, the second generator has a refrigerant vapor passage connected to the first absorber, and the second generator has a refrigerant vapor passage connected to the third generator, and the third generator is cooled again The liquid line is passed through a throttle valve and a second condenser or The condenser is connected, the third generator is further connected with the first absorber by a refrigerant vapor passage, the third generator has a refrigerant vapor passage communicating with the second condenser, and the second condenser is further connected with the refrigerant liquid pipeline. The second refrigerant liquid pump is in communication with the evaporator, and the second condenser and the cooling medium line are in communication with the outside to form a staged condensation type II absorption heat pump.

25. Staged Condensation The second type of absorption heat pump is a second type of absorption heat pump in any of the classified condensing type II absorption heat pumps described in items 19-24 and having no regenerative cooling end. The second throttle valve is added to cancel the first occurrence. The waste heat medium pipeline connected to the outside, the second generator adds a refrigerant vapor passage to communicate with the first generator, and then the first generator has a refrigerant liquid pipeline through the second throttle valve and the condenser or the second condensation The device is connected to form a staged condensing type II absorption heat pump.

26. Staged Condensation The second type of absorption heat pump is a second type of absorption heat pump of any type of condensing type II absorption heat pump described in items 19-24 and having a regenerative cooling end. The second throttle valve is added to cancel the first occurrence. And the new generator are connected to the outside respectively Residual heat medium pipeline, the second generator adds a refrigerant vapor channel to sequentially connect the first generator and the new generator, and then adds a new generator and then a refrigerant liquid pipeline through the second throttle valve and the condenser or the second condensation The device is connected to form a staged condensing type II absorption heat pump.

27. The staged condensing type II absorption heat pump is a second type of condensing type II absorption heat pump according to item 19, adding a second throttle valve, a fourth generator, a fourth solution pump and a fourth a solution heat exchanger, the second absorber is provided with a dilute solution pipeline connected to the fourth generator via the fourth solution heat exchanger, and the fourth generator has a concentrated solution pipeline through the fourth solution pump and the fourth solution heat exchanger Communicating with the second absorber, adjusting the third generator having the refrigerant vapor passage to communicate with the first absorber to adjust the third generator to have a refrigerant vapor passage communicating with the fourth generator, and then the fourth generator is further provided with a refrigerant liquid The pipeline is connected to the condenser via the second throttle valve, and the fourth generator further has a refrigerant vapor passage communicating with the first absorber to form a staged condensation second type absorption heat pump.

28. A staged condensing type II absorption heat pump, wherein in any of the staged condensing type II absorption heat pumps of item 20, the second throttle valve, the fourth generator and the fourth solution heat exchanger are added. The third generator has a concentrated solution pipeline connected to the third solution heat exchanger through the second solution pump to be adjusted to be a third generator having a concentrated solution pipeline connected to the fourth generator via the fourth solution heat exchanger, fourth The generator further has a concentrated solution pipeline connected to the third solution heat exchanger via the second solution pump and the fourth solution heat exchanger, and the third generator has a refrigerant vapor passage connected to the first absorber to adjust to a third occurrence. After the refrigerant vapor passage is connected with the fourth generator, the fourth generator has a refrigerant liquid pipeline connected to the condenser via the second throttle valve, and the fourth generator has a refrigerant vapor passage and a first absorber. Connected to form a graded condensation second type absorption heat pump.

29. The staged condensing type II absorption heat pump is a second type of condensing type II absorption heat pump according to item 21, adding a second throttle valve, a fourth generator, a fourth solution pump and a fourth a solution heat exchanger, wherein the second absorber has a dilute solution line connected to the third generator via the second solution heat exchanger to adjust the second absorber to have a dilute solution line through the second solution heat exchanger and the fourth occurrence The fourth generator further has a concentrated solution line connected to the third generator via the fourth solution pump and the fourth solution heat exchanger, and the second generator has a concentrated solution line through the third solution heat exchanger and The second solution pump is connected to the second solution heat exchanger to be adjusted to be a second generator having a concentrated solution line connected to the second solution heat exchanger via the third solution heat exchanger, the fourth solution heat exchanger and the second solution pump a third generator having a refrigerant vapor passage communicating with the first absorber to be adjusted to a third generator having a refrigerant vapor passage communicating with the fourth generator, the fourth generator having a refrigerant liquid passage through the second section The flow valve is connected to the condenser, the fourth generator Further, a refrigerant vapor passage communicates with the first absorber to form a staged condensation second type absorption heat pump.

30. A staged condensing type II absorption heat pump, wherein in any of the staged condensing type II absorption heat pumps of claim 22, the fourth generator, the fourth solution pump, the fourth solution heat exchanger, and the a second throttle valve, the second absorber is provided with a dilute solution pipeline connected to the fourth generator via the fourth solution heat exchanger, and the fourth generator has a concentrated solution pipeline through the fourth solution pump and the fourth solution heat exchanger Communicating with the second absorber, the third generator has a refrigerant vapor channel connected to the first absorber and the second condenser respectively, and is adjusted to be the third generator. The refrigerant vapor channel is connected to the fourth generator and the fourth generation occurs. The refrigerant liquid pipeline is further connected to the second condenser via the second throttle valve, and the fourth generator further has a refrigerant vapor passage communicating with the first absorber, and the fourth generator further has a refrigerant vapor passage and the first The second condenser is connected to form a staged condensing second type absorption heat pump.

31. A staged condensing second type absorption heat pump, wherein in any of the staged condensing type II absorption heat pumps of claim 23, the fourth generator, the fourth solution heat exchanger and the second throttle valve are added, The third generator has a concentrated solution pipeline connected to the third solution heat exchanger through the second solution pump to be adjusted to be a third generator having a concentrated solution pipeline connected to the fourth generator via the fourth solution heat exchanger, fourth The generator further has a concentrated solution pipeline connected to the third solution heat exchanger via the second solution pump and the fourth solution heat exchanger, and the third generator has a refrigerant vapor passage respectively with the first absorber and the second condenser The communication is adjusted so that the third generator has a refrigerant vapor passage connected to the fourth generator, and the fourth generator has a refrigerant liquid pipeline through the second throttle valve and the third The second condenser is connected, the fourth generator further has a refrigerant vapor passage communicating with the first absorber, and the fourth generator further has a refrigerant vapor passage communicating with the second condenser to form a staged condensation second type absorption heat pump.

32. A staged condensing type II absorption heat pump, wherein in any of the stepwise condensing type II absorption heat pumps of claim 24, the fourth generator, the fourth solution pump, the fourth solution heat exchanger, and the a two-way valve, the second absorber has a dilute solution line connected to the third generator through the second solution heat exchanger to adjust the second absorber to have a dilute solution line through the second solution heat exchanger and the fourth occurrence The fourth generator further has a concentrated solution line connected to the third generator via the fourth solution pump and the fourth solution heat exchanger, and the second generator has a concentrated solution line through the third solution heat exchanger and The second solution pump is connected to the second solution heat exchanger to be adjusted to be a second generator having a concentrated solution line connected to the second solution heat exchanger via the third solution heat exchanger, the fourth solution heat exchanger and the second solution pump And connecting the third generator refrigerant vapor passage to the first absorber and the second condenser respectively to adjust the third generator to have a refrigerant vapor passage connected with the fourth generator, and then the fourth generator has a refrigerant liquid The pipeline passes through the second throttle valve and the first A condenser in communication, the fourth steam generator and then the refrigerant passage in communication with the first absorber, the generator, the refrigerant vapor fourth passage communicating with the second condenser to form a second fractional condensation absorption heat pump.

33. The grading and condensing of the second type of absorption heat pump is the third type of absorption heat pump in any of the classified condensing type II absorption heat pumps described in items 27-32 and having no regenerative cooling end, canceling the first occurrence The waste heat medium pipeline connected to the outside, the second generator adds a refrigerant vapor passage to communicate with the first generator, and then the first generator has a refrigerant liquid pipeline through the third throttle valve and the condenser or the second condensation The device is connected to form a staged condensing type II absorption heat pump.

34. The grading and condensing of the second type of absorption heat pump is the first type of condensing type II absorbing heat pump described in items 27-32 and without the regenerative cooling end. The residual heat medium pipeline connected to the outside, the third generator adds a refrigerant vapor passage to communicate with the first generator, and then the first generator has a refrigerant liquid pipeline through the third throttle valve and the condenser or the second condensation The device is connected to form a staged condensing type II absorption heat pump.

35. Staged Condensation The second type of absorption heat pump is a third type of absorption heat pump of any type of condensing type II absorption heat pump described in items 27-32 and having a regenerative cooling end. The third throttle valve is added to cancel the first occurrence. And the newly added generator respectively communicate with the external waste heat medium pipeline, the second generator adds a refrigerant vapor passage to sequentially connect the first generator and the new generator, and then adds a new generator and then a refrigerant liquid pipeline The three sections are connected to the condenser or the second condenser to form a staged condensing type II absorption heat pump.

36. Staged Condensation The second type of absorption heat pump is a third type of absorption heat pump of any type of condensing type II absorption heat pump described in items 27-32 and having a regenerative cooling end, canceling the first occurrence And the newly added generator respectively communicate with the external waste heat medium pipeline, the third generator adds a refrigerant vapor passage to sequentially connect the first generator and the new generator, and then adds a new generator and then a refrigerant liquid pipeline The three throttle valve is in communication with the condenser or the second condenser to form a staged condensing second type absorption heat pump.

The invention will be further illustrated by taking the staged condensing type II absorption heat pump shown in Fig. 1 as an example to further illustrate the invention:

In Fig. 1, the refrigerant vapor generated by the second generator 2 is not directly supplied to the condenser 5, but enters the first absorber.

3 is absorbed by the solution and exothermic to the cooling medium, and the part of the refrigerant vapor is again released by the driving action of the residual heat medium in the first generator 1 and supplied to the condenser 5, which brings the following effects -

(1) The refrigerant pressure generated by the second generator 2 may be lower than the refrigerant vapor pressure generated by the first generator 1.

(2) For the residual heat medium of the same temperature, the concentration of the solution at the outlet of the second generator 2 will be larger, and the temperature generated by the second absorber 4 absorbing the refrigerant vapor will be increased, achieving a two-stage elevation of the residual heat temperature.

(3) The first absorber 3 and the condenser 5 together perform a part of the temperature drop process of the residual heat load, which is advantageous for reducing the heat transfer temperature difference.

(4) The residual heat is utilized by the first generator 1, the second generator 2, and the evaporator 6, respectively, to facilitate the deep utilization of the waste heat resources. BRIEF DESCRIPTION OF THE DRAWINGS:

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the first structure and flow of a staged condensing second type absorption heat pump according to the present invention.

Figure 2 is a schematic view showing the second structure and flow of a staged condensing second type absorption heat pump according to the present invention.

Figure 3 is a schematic view showing the third structure and flow of a staged condensing second type absorption heat pump according to the present invention.

Figure 4 is a fourth structural and flow diagram of a staged condensing second type absorption heat pump according to the present invention.

Figure 5 is a schematic view showing the fifth structure and flow of a staged condensing second type absorption heat pump according to the present invention.

Figure 6 is a sixth structural and flow diagram of a staged condensing second type absorption heat pump according to the present invention.

Figure 7 is a schematic view showing the seventh structure and flow of the staged condensing type II absorption heat pump according to the present invention.

Figure 8 is a schematic view showing the eighth structure and flow of the staged condensing second type absorption heat pump according to the present invention.

Figure 9 is a schematic view showing the ninth structure and flow of a staged condensing second type absorption heat pump according to the present invention.

Figure 10 is a schematic view showing the tenth structure and flow of a staged condensing second type absorption heat pump according to the present invention. Figure 11 is a perspective view showing the eleventh structure and flow of a staged condensing second type absorption heat pump according to the present invention. Figure 12 is a schematic view showing the structure and flow of the thirteenth type of the condensing type II absorption heat pump according to the present invention. Figure 13 is a schematic view showing the thirteenth structure and flow of a staged condensing second type absorption heat pump according to the present invention. Figure 14 is a schematic view showing the 14th structure and flow of a staged condensing second type absorption heat pump according to the present invention. Figure 15 is a schematic view showing the structure and flow of the fifteenth type of the condensing type II absorption heat pump according to the present invention. Figure 16 is a schematic view showing the structure and flow of the 16th stage of the condensing and concentrating heat pump of the second type according to the present invention. Figure 17 is a schematic view showing the structure and flow of the seventh type of the condensing type II absorption heat pump according to the present invention. Figure 18 is a schematic view showing the structure and flow of the eighth type of the condensing type II absorption heat pump according to the present invention. Figure 19 is a schematic view showing the structure and flow of the thirteenth type of the condensing type II absorption heat pump according to the present invention. Figure 20 is a schematic view showing the 20th structure and flow of a staged condensing second type absorption heat pump according to the present invention. Figure 21 is a schematic view showing the structure and flow of the twenty-first type of condensing type II absorption heat pump according to the present invention. Figure 22 is a perspective view showing the 22nd structure and flow of a staged condensing second type absorption heat pump according to the present invention. Figure 23 is a schematic view showing the 23rd structure and flow of a staged condensing second type absorption heat pump according to the present invention. Figure 24 is a diagram showing the twenty-fourth structure and flow of a staged condensing second type absorption heat pump according to the present invention. Figure 25 is a schematic view showing the structure and flow of the twenty-fifth type of condensing type II absorption heat pump according to the present invention. In the figure, 1 - first generator, 2 - second generator, 3 - first absorber, 4 - second absorber, 5 - condenser, 6 - evaporator, 7 - first solution pump, 8 - Second solution pump, 9-coolant pump, 10-first solution heat exchanger, 11-second solution heat exchanger, 12-third generator, 13-third absorber, 14-third solution pump , 15 - third solution heat exchanger, 16 - second condenser, 17 - second refrigerant liquid pump, 18 - throttle valve, 19 - second evaporator, 20 - second throttle valve, 21 - Four generators, 22—fourth solution pump, 23—fourth solution heat exchanger, 24—third throttle valve, 25—absorption-evaporator; A—new generator, B_ new absorber, C A new solution pump, D_ new solution heat exchanger, E added a new throttle.

detailed description:

The first thing to note is that in the description of the structure and process, it is not repeated if it is not necessary; the obvious process is not stated. The invention will be described in detail below with reference to the accompanying drawings and examples.

The graded condensing second type absorption heat pump shown in Figure 1 is realized in this way -

1 structurally, it is mainly composed of a first generator, a second generator, a first absorber, a second absorber, a condenser, an evaporator, a first solution pump, a second solution pump, a refrigerant liquid pump, a first a solution heat exchanger and a second solution heat exchanger; the first absorber 3 has a dilute solution line connected to the first generator 1 via the first solution pump 7 and the first solution heat exchanger 10, A generator 1 and a concentrated solution line are connected to the first absorber 3 via the first solution heat exchanger 10, and the first generator 1 also has a refrigerant vapor passage communicating with the condenser 5, and the condenser 5 has a refrigerant. The liquid pipeline communicates with the evaporator 6 via the refrigerant liquid pump 9, the evaporator 6 also has a refrigerant vapor passage communicating with the second absorber 4, and the second absorber 4 also has a dilute solution pipeline passing through the second solution heat exchanger. 11 is in communication with the second generator 2, the second generator 2 also has a concentrated solution line connected to the second absorber 4 via the second solution pump 8 and the second solution heat exchanger 11, and the second generator 2 is also cold The first steam generator is connected to the first absorber 3, and the first generator 1, the second generator 2 and the evaporator 6 respectively have a waste heat medium line communicating with the outside, and the first absorber 3 and the condenser 5 are respectively cooled. The medium line communicates with the outside, and the second absorber 4 also has a heated medium line that communicates with the outside.

2 In the process, the residual heat medium flows through the first generator 1, and the solution heated into the solution is released and supplies the refrigerant vapor to the condenser 5. The concentrated solution of the first generator 1 enters the first through the first solution heat exchanger 10. The absorber 3 absorbs the refrigerant vapor from the second generator 2 and radiates heat to the cooling medium, and the dilute solution of the first absorber 3 enters the first generator 1 via the first solution pump 7 and the first solution heat exchanger 10. The refrigerant vapor of the condenser 5 exotherms in the cooling medium to form a refrigerant liquid, and the refrigerant liquid of the condenser 5 is pressurized into the evaporator 6 by the refrigerant liquid pump 9, absorbs the residual heat into the refrigerant vapor, and flows to the second absorber. 4, the refrigerant vapor entering the second absorber 4 is absorbed by the concentrated solution from the second generator 2 and radiated to the heated medium, and the diluted solution of the second absorber 4 is passed through the second solution heat exchanger 11 a second generator 2, the residual heat medium flows through the second generator 2, and the solution heated therein is released and supplies the refrigerant vapor to the first absorber 3, and the concentrated solution of the second generator 2 passes through the second solution pump 8 and the The two solution heat exchanger 11 enters the second absorption 4, forming a graded condensation second type absorption heat pump.

The graded condensing second type absorption heat pump shown in Figure 2 is realized as follows:

1 structurally, in the hierarchical condensing type II absorption heat pump shown in FIG. 1, the third generator, the third absorber, the third solution pump and the third solution heat exchanger are added, and the second absorber 4 is provided The dilute solution line is connected to the second generator 2 via the second solution heat exchanger 11 to be adjusted to be a second absorber 4 having a dilute solution line communicating with the third absorber 13 via the second solution heat exchanger 11 and a third absorption The device 13 further has a dilute solution line connected to the second generator 2 via the third solution pump 14 and the third solution heat exchanger 15, and the second generator 2 has a concentrated solution line through the second solution pump 8 and the second The solution heat exchanger 11 is connected to the second absorber 4 to be adjusted so that the second generator 2 has a concentrated solution line connected to the third generator 12 via the third solution heat exchanger 15, and the third generator 12 has a concentrated solution tube. The second solution pump 8 and the second solution heat exchanger 11 are in communication with the second absorber 4, and the third generator 12 has a refrigerant vapor passage communicating with the third absorber 13, and the third generator 12 has residual heat. The medium pipe is connected to the outside, and the third absorber 13 has a cooling medium pipe External communication.

2 In the process, the concentrated solution of the second generator 2 enters the third generator 12 through the third solution heat exchanger 15, the residual heat medium flows through the third generator 12, and the solution heated into the solution is released to the third absorber. 13 providing refrigerant vapor, the concentrated solution of the third generator 12 entering the second absorber 4 via the second solution pump 8 and the second solution heat exchanger 11, absorbing refrigerant vapor from the evaporator 6 and radiating heat to be heated The medium, the dilute solution of the second absorber 4 enters the third absorber 13 through the second solution heat exchanger 11, absorbs the refrigerant vapor from the third generator 12, and radiates heat to the cooling medium, and the third absorber 13 is diluted. The solution enters the second generator 2 via the third solution pump 14 and the third solution heat exchanger 15 to form a staged condensed second type absorption heat pump having a regenerative cooling end.

The staged condensing second type absorption heat pump shown in Figure 3 is realized in this way:

1Structurally, in the graded condensation type II absorption heat pump shown in Fig. 1, adding a new generator, a new absorber, a new solution pump and a new solution heat exchanger, the first generator 1 has The concentrated solution pipeline is connected to the first absorber 3 via the first solution heat exchanger 10 to be adjusted to be a first generator 1 having a concentrated solution pipeline connected to the newly added generator A via the first solution heat exchanger 10, and newly occurring occurs. The A solution is further connected to the first absorber 3 via the new solution heat exchanger D, and the first absorber 3 has a dilute solution line through the first solution pump 7 and the first solution heat exchanger 10 and The first generator 1 is connected and adjusted so that the first absorber 3 has a dilute solution pipeline connected to the newly added absorber B via the first solution pump 7 and the new solution heat exchanger D, and newly absorbed The B has a dilute solution line connected to the first generator 1 via the new solution pump C and the first solution heat exchanger 10, and the new generator A and the refrigerant vapor channel are connected to the newly added absorber B. The generator A and the residual heat medium pipeline communicate with the outside, and the newly added absorber B and the cooling medium pipeline communicate with the outside.

2 In the process, the concentrated solution of the first generator 1 enters the newly added generator A through the first solution heat exchanger 10, and the residual heat medium flows through the newly added generator, and the solution heated into the solution is released and added to the new absorber B. Providing refrigerant vapor, adding a concentrated solution of the generator A to the first absorber 3 via the new solution heat exchanger D, absorbing the refrigerant vapor from the second generator 2, and radiating heat to the cooling medium, the first absorber The dilute solution of 3 enters the new absorber B through the first solution pump 7 and the new solution heat exchanger D, absorbs the refrigerant vapor from the newly added generator A, and radiates heat to the cooling medium, and adds the thinner of the absorber B. The solution enters the first generator 1 via the new solution pump C and the first solution heat exchanger 10 to form a staged condensed second type absorption heat pump having a regenerative cooling end.

This is achieved in the staged condensing second type absorption heat pump shown in Figure 4:

In the staged condensing second type absorption heat pump shown in FIG. 1, a second condenser and a second refrigerant liquid pump are added, and the second generator 2 adds a refrigerant vapor passage to communicate with the second condenser 16, the second condensation The refrigerant 16 is also connected to the evaporator 6 via the second refrigerant liquid pump 17, and the second condenser 16 has a cooling medium line communicating with the outside; the refrigerant vapor generated by the second generator 2 is respectively directed The first absorber 3 and the second condenser 16 provide that the refrigerant vapor of the second condenser 16 is radiated to the cooling medium to form a refrigerant liquid, and the refrigerant liquid of the second condenser 16 is added by the second refrigerant liquid pump 17 Pressing into the evaporator 6, absorbing residual heat into refrigerant vapor and providing it to the second absorber 4 forms a staged condensing second type absorption heat pump including a single stage flow.

The staged condensing second type absorption heat pump shown in Fig. 5 is realized as follows - in the staged condensing type II absorption heat pump shown in Fig. 2, the second condenser and the second refrigerant liquid pump are added, the second occurrence The refrigerant 2 is connected to the second condenser 16 , and the second condenser 16 and the refrigerant liquid pipeline are connected to the evaporator 6 via the second refrigerant liquid pump 17 , and the second condenser 16 has a cooling medium. The pipeline is connected to the outside; the refrigerant vapor generated by the second generator 2 is supplied to the first absorber 3 and the second condenser 16, respectively, and the refrigerant vapor of the second condenser 16 is radiated to the cooling medium to form a refrigerant liquid. The refrigerant liquid of the second condenser 16 is pressurized into the evaporator 6 via the second refrigerant liquid pump 17, absorbs the residual heat into the refrigerant vapor, and is supplied to the second absorber 4 to form a staged condensation unit including a single-stage flow. The second type of absorption heat pump.

The staged condensing second type absorption heat pump shown in Fig. 6 is realized in the same manner as in the staged condensing type II absorption heat pump shown in Fig. 1, the second refrigerant liquid pump is added, and the condenser 5 is disconnected from the outside. In the cooling medium pipeline, the condenser 5 adds a refrigerant liquid pipeline through the second refrigerant liquid pump 17 to communicate with the condenser 5, and then the condenser 5 has a refrigerant vapor passage communicating with the first absorber 3; the condenser 5 is cold The liquid is divided into two paths - the first passage is pressurized into the evaporator 6 by the refrigerant liquid pump 9, and the second passage is pressurized by the second refrigerant liquid pump 17, flows through the condenser 5, and absorbs heat into the refrigerant vapor. Provided to the first absorber 3 forms a staged condensing second type absorption heat pump.

The staged condensing second type absorption heat pump shown in Fig. 7 is realized in the same manner as in the staged condensing type II absorption heat pump shown in Fig. 3, the throttle valve is added, and the cooling medium tube in which the condenser 5 is connected to the outside is canceled. The evaporator 6 is further provided with a refrigerant liquid pipeline connected to the condenser 5 via the throttle valve 18, and then the condenser 5 is further connected with the first absorber 3 by the refrigerant vapor passage; the refrigerant liquid of the evaporator 6 is divided into two paths— - the first path absorbs the residual heat into the refrigerant vapor and supplies it to the second absorber 4, the second path is throttled by the throttle valve 18 and then flows through the condenser 5, absorbs the heat into the refrigerant vapor and flows to the first absorber 3 Provided, a graded condensing second type absorption heat pump is formed.

The graded condensing second type absorption heat pump shown in Figure 8 is realized in this way:

In the staged condensing type II absorption heat pump shown in FIG. 3, the throttle valve is added, the cooling medium line connecting the condenser 5 and the newly added absorber B to the outside is canceled, and the evaporator 6 is provided with a refrigerant liquid line. After the throttle valve 18 is sequentially connected with the newly added absorber B and the condenser 5, the condenser 5 is further connected with the first absorber 3 by the refrigerant vapor passage; the coolant liquid of the evaporator 6 In two ways - the first way absorbs the residual heat into the refrigerant vapor and supplies it to the second absorber 4, and the second path is throttled by 18 throttling and then flows through the newly absorbed absorber B to absorb the heat, and then flows through the condensation. The device 5 absorbs heat into the refrigerant vapor and supplies it to the first absorber 3 to form a staged condensation second type absorption heat pump.

The staged condensing second type absorption heat pump shown in Figure 9 is implemented as follows:

1 structurally, in the stepwise condensing second type absorption heat pump shown in FIG. 1, the absorption-evaporator, the second refrigerant liquid pump, the third absorber, the third solution pump and the third solution heat exchanger are added, The second absorber 4 has a dilute solution line connected to the second generator 2 through the second solution heat exchanger 11 to be adjusted to a second absorber 4 having a dilute solution line directly connected to the absorption-evaporator 25, absorption-evaporation The second solution 13 is further connected to the third absorber 13 via the third solution pump 14 and the third solution heat exchanger 15, and the third absorber 13 has a dilute solution line through the third solution heat exchanger 15 and The second solution heat exchanger 11 is in communication with the second generator 2, the evaporator 6 is provided with a refrigerant vapor passage communicating with the absorption-evaporator 25, and the condenser 5 is provided with a refrigerant liquid line via the second refrigerant liquid pump 17 and absorbing - After the evaporator 25 is connected, the absorption-evaporator 25 is further connected to the third absorber 13 by a refrigerant vapor passage, and the third absorber 13 is also connected to the outside by the heated medium line.

2 In the process, the dilute solution of the second absorber 4 enters the absorption-evaporator 25, absorbs the refrigerant vapor from the evaporator 6, and releases the refrigerant liquid flowing through the absorption-evaporator 25, and the absorption-evaporator 25 The dilute solution enters the third absorber 13 through the third solution pump 14 and the third solution heat exchanger 15, absorbs the refrigerant vapor from the absorption-evaporator 25, and radiates heat to the heated medium, and the dilute solution of the third absorber 13 The second generator 2 enters the second generator 2 via the third solution heat exchanger 15 and the second solution heat exchanger 11; the coolant liquid of the condenser 5 is divided into two paths - the first passage is pressurized by the refrigerant liquid pump 9 into the evaporator 6 The residual heat is absorbed into the refrigerant vapor and supplied to the second absorber 4 and the absorption-evaporator 25, respectively, and the second passage is pressurized by the second refrigerant liquid pump 17, and then flows through the absorption-evaporator 25 to absorb heat to cool. The agent vapor is supplied to the third absorber 13 to form a staged condensation second type absorption heat pump.

The graded condensing second type absorption heat pump shown in Figure 10 is realized in this way -

1 structurally, in the stepwise condensing second type absorption heat pump shown in FIG. 1, the absorption-evaporator, the second refrigerant liquid pump, the third absorber, the third solution pump and the third solution heat exchanger are added, The second absorber 4 has a dilute solution line connected to the second generator 2 through the second solution heat exchanger 11 to be adjusted to a second absorber 4 having a dilute solution line through the third solution pump 14 and the third solution heat exchange The device 15 is in communication with the third absorber 13, the third absorber 13 and the dilute solution line are connected to the absorption-evaporator 25 via the third solution heat exchanger 15, and the absorption-evaporator 25 has a dilute solution line. The two-solution heat exchanger 11 is in communication with the second generator 2, and the condenser 5 is provided with a refrigerant liquid line connected to the absorption-evaporator 25 via the second refrigerant liquid pump 17, and the absorption-evaporator 25 is further provided with a refrigerant vapor passage. In connection with the third absorber 13, the third absorber 13 is further connected to the outside by the heating medium pipe; the new throttle valve and the second evaporator are added, and the evaporator 6 is added with a refrigerant liquid pipe through the new section. The flow valve E is in communication with the second evaporator 19, and the second evaporator 19 has a refrigerant Hood absorbent --25 communication evaporator, the second evaporator 19 also communicates with the external heat medium pipeline.

In the second scheme, the dilute solution of the second absorber 4 enters the third absorber 13 via the third solution pump 14 and the third solution heat exchanger 15, absorbs the refrigerant vapor from the absorption-evaporator 25, and radiates heat to be heated. The medium, the dilute solution of the third absorber 13 enters the absorption-evaporator 25 via the third solution heat exchanger 15, absorbs the refrigerant vapor from the second evaporator 19, and releases the refrigerant flowing through the absorption-evaporator 25. The dilute solution of the liquid, absorption-evaporator 25 enters the second generator 2 via the second solution heat exchanger 11; the coolant liquid of the condenser 5 is divided into two paths - the first passage is pressurized by the second refrigerant liquid pump 17 Then flowing through the absorption-evaporator 25, absorbing heat into the refrigerant vapor and supplying it to the third absorber 13, and the second passage is pressurized into the evaporator 6 by the refrigerant liquid pump 9 _; the refrigerant liquid of the evaporator 6 is divided into two Road - the first way absorbs the residual heat into the refrigerant vapor and supplies it to the second absorber 4, and the second way increases the throttling F into the second evaporator 19, and absorbs the heat and heat into the refrigerant vapor and absorbs it. - An evaporator 25 is provided to form a staged condensing second type absorption heat pump.

The staged condensing second type absorption heat pump shown in Figure 11 is realized in this way: 1Structurally, in the hierarchical condensing type II absorption heat pump shown in FIG. 1, the absorption-evaporator, the second refrigerant liquid pump, the new absorber, the new solution pump and the new solution heat exchanger are added. The first absorber 3 has a dilute solution line connected to the first generator 1 via the first solution pump 7 and the first solution heat exchanger 10 to adjust the first absorber 3 to have a dilute solution line directly to the absorption-evaporator 25 connected, the absorption-evaporator 25 and the dilute solution pipeline are connected to the newly added absorber B via the first solution pump 7 and the new solution heat exchanger D, and the new absorber B is further added with the dilute solution pipeline. The solution pump C and the first solution heat exchanger 10 are in communication with the first generator 1, and the first generator 1 has a concentrated solution line connected to the first absorber 3 via the first solution heat exchanger 10 to be firstly generated. The concentrated solution line of the device 1 is connected to the first absorber 3 via the first solution heat exchanger 10 and the new solution heat exchanger D, and the condenser 5 is provided with a refrigerant liquid line through the second refrigerant liquid pump 17 and absorbed. - After the evaporator 25 is connected, the absorption-evaporator 25 is further connected to the newly added absorber B by the refrigerant vapor passage, and the second generator 2 is increased. Absorbing the refrigerant vapor passage --25 communication evaporator, new absorber B also communicates with an external coolant lines.

2 In the process, the refrigerant vapor generated by the second generator 2 is supplied to the first absorber 3 and the absorption-evaporator 25, respectively, the dilute solution of the first absorber 3 enters the absorption-evaporator 25, and the absorption is from the second generator. 2 refrigerant vapor and exothermic to the refrigerant liquid flowing through the absorption-evaporator 25, the dilute solution of the absorption-evaporator 25 enters the new absorber 8 via the first solution pump 7 and the new solution heat exchanger D, Absorbing the refrigerant vapor from the absorption-evaporator 25 and exothermic to the cooling medium, adding the diluted solution of the absorber B to the first generator 1 via the new solution pump C and the first solution heat exchanger 10, the first occurrence The concentrated solution of the device 1 enters the first absorber 3 via the first solution heat exchanger 10 and the newly added solution heat exchanger D; the refrigerant liquid of the condenser 5 is divided into two paths - the first passage is cooled by the refrigerant liquid pump 9 After pressing, the evaporator 6 is introduced, and the second passage is pressurized by the second refrigerant liquid pump 17, and then passed through the absorption-evaporator 25, which absorbs heat into the refrigerant vapor and is supplied to the newly added absorber B to form a graded condensation type II. Absorption heat pump.

The graded condensing second type absorption heat pump shown in Figure 12 is realized as follows:

1Structurally, in the hierarchical condensing type II absorption heat pump shown in FIG. 1, the absorption-evaporator, the second refrigerant liquid pump, the new absorber, the new solution pump and the new solution heat exchanger are added. Adjusting the first absorber 3 having a dilute solution line through the first solution pump and the first solution heat exchanger 10 to the first generator 1 to adjust the first absorber 3 to have a dilute solution line first solution pump 7 and The new solution heat exchanger D is connected to the newly added absorber B, and the new absorber B and the dilute solution line are connected to the absorption-evaporator 25 via the new solution heat exchanger D, and the absorption-evaporator 25 is again diluted. The solution line is connected to the first generator 1 via the new solution pump C and the first solution heat exchanger 10, the condenser 5 is connected with the refrigerant liquid pump 17 and the absorption-evaporator 25 is connected, and the absorption-evaporator 25 is cooled again. The agent vapor passage is in communication with the newly added absorber B, the second generator 2 is provided with a refrigerant vapor passage communicating with the absorption-evaporator 25, and the newly added absorber B and the cooling medium conduit are in communication with the outside.

2 In the process, the refrigerant vapor generated by the second generator 2 is supplied to the first absorber 3 and the absorption-evaporator 25, respectively, and the diluted solution of the first absorber 3 passes through the first solution pump 7 and the newly added solution heat exchanger. D enters the new absorber B, absorbs the refrigerant vapor from the absorption-evaporator 25 and radiates heat to the cooling medium, and adds the diluted solution of the absorber B to the absorption-evaporator 25 through the new solution heat exchanger D, and absorbs The refrigerant vapor from the second generator 2 is exothermic to the refrigerant liquid flowing through the absorption-evaporator 25, and the dilute solution of the absorption-evaporator 25 is passed through the new solution pump C and the first solution heat exchanger 10 a generator 1; the refrigerant liquid of the condenser 5 is divided into two paths - the first passage is pressurized into the evaporator 6 by the refrigerant liquid pump 9, and the second passage is pressurized by the second refrigerant liquid pump 17, and then absorbed. - The evaporator 25, which absorbs heat into the refrigerant vapor and supplies it to the newly added absorber B to form a staged condensation type II absorption heat pump.

The staged condensing second type absorption heat pump shown in Figure 13 is realized as follows:

1 structurally, mainly by a first generator, a second generator, a third generator, a first absorber, a second absorber, a third absorber, a condenser, an evaporator, a first solution pump, a second solution a pump, a third solution pump, a refrigerant liquid pump, a first solution heat exchanger, a second solution heat exchanger, and a third solution heat exchanger; the first absorber 3 has a dilute solution line through the first solution pump 7 and the first solution heat exchanger 10 is in communication with the first generator 1, the first generator 1 and the concentrated solution line The first solution heat exchanger 10 is in communication with the first absorber 3, the first generator 1 and the refrigerant vapor passage are in communication with the condenser 5, and the condenser 5 and the refrigerant liquid line are passed through the refrigerant liquid pump 9 and evaporated. The evaporator 6 is connected, the evaporator 6 and the refrigerant vapor passage are in communication with the third absorber 13, and the third absorber 13 and the dilute solution pipeline are connected to the third generator 12 via the third solution heat exchanger 15, third The generator 12 further has a concentrated solution line communicating with the third absorber 13 via the third solution pump 14 and the third solution heat exchanger 15, and the third generator 12 also has a refrigerant vapor passage communicating with the second absorber 4. The second absorber 4 further has a dilute solution line connected to the second generator 2 via the second solution pump 8 and the second solution heat exchanger 11, and the second generator 2 also has a concentrated solution line exchanged by the second solution. The device 11 is in communication with the second absorber 4, and the second generator 2 also has a refrigerant vapor passage communicating with the first absorber 3, the first generator 1, the second generator 2, the third generator 12 and the evaporator 6 There is also a residual heat medium pipeline connected to the outside, and the first absorber 3, the second absorber 4 and the condenser 5 are respectively cooled. Quality conduit communicating with the outside, there is a third absorber 13 communicates with an external heating medium line.

2 In the process, the residual heat medium flows through the first generator 1, and the solution heated into the solution is released and supplies the refrigerant vapor to the condenser 5. The concentrated solution of the first generator 1 enters the first through the first solution heat exchanger 10. The absorber 3 absorbs the refrigerant vapor from the second generator 2 and radiates heat to the cooling medium, and the dilute solution of the first absorber 3 enters the first generator 1 via the first solution pump 7 and the first solution heat exchanger 10. The refrigerant vapor of the condenser 5 is exothermic to the cooling medium to form a refrigerant liquid, and the refrigerant liquid of the condenser 5 is pressurized into the evaporator 6 by the refrigerant liquid pump 9, and absorbs the residual heat into the refrigerant vapor and flows to the third absorber. 13 provides that the refrigerant vapor entering the third absorber 13 is absorbed by the concentrated solution from the third generator 12 and radiates heat to the heated medium, and the diluted solution of the third absorber 13 enters the third solution heat exchanger 15 a three-generator 12, the residual heat medium flows through the third generator 12, the solution heated into it is released and supplies the refrigerant vapor to the second absorber 4, and the concentrated solution of the third generator 12 passes through the third solution pump 14 and Three-solution heat exchanger 15 enters the first The absorber 13; the refrigerant vapor entering the second absorber 4 is absorbed by the concentrated solution from the second generator 2 and radiates heat to the cooling medium, and the diluted solution of the second absorber 4 passes through the second solution pump 8 and the second solution The heat exchanger 11 enters the second generator 2, and the residual heat medium flows through the second generator 2, and the solution heated therein is released and supplies the refrigerant vapor to the first absorber 3, and the concentrated solution of the second generator 2 passes through the first The two solution heat exchanger 11 enters the second absorber 4 to form a solution split cycle three-stage second type absorption heat pump.

The staged condensing second type absorption heat pump shown in Fig. 14 is realized by adding a second condenser and a second refrigerant liquid pump in the solution split cycle three-stage second type absorption heat pump shown in Fig. 13. The second generator 2 is provided with a refrigerant vapor passage communicating with the second condenser 16, and the second condenser 16 and the refrigerant liquid pipeline are connected to the evaporator 6 via the second refrigerant liquid pump 17, and the second condenser 16 Further, the cooling medium line communicates with the outside; the refrigerant vapor generated by the second generator 2 is supplied to the first absorber 3 and the second condenser 16, respectively, and the refrigerant vapor of the second condenser 16 is radiated to the cooling medium. The refrigerant liquid, the refrigerant liquid of the second condenser 16 is pressurized into the evaporator 6 by the second refrigerant liquid pump 17, and the residual heat is absorbed into the refrigerant vapor and supplied to the third absorber 13, forming a two-stage flow. The graded condensing of the second type of absorption heat pump.

The graded condensing second type absorption heat pump shown in Figure 15 is realized as follows:

1 structurally, in the hierarchical condensation type second absorption heat pump shown in FIG. 1, the third generator, the third solution pump, the third solution heat exchanger and the throttle valve are added, and the second absorber 4 is provided with a dilute solution. The pipeline is in communication with the third generator 12 via the third solution heat exchanger 15, and the third generator 12 and the concentrated solution pipeline are connected to the second absorber 4 via the third solution pump 14 and the third solution heat exchanger 15. , the second generator 2 has a refrigerant vapor passage connected to the first absorber 3 and is adjusted to be the second generator 2. The refrigerant vapor passage is in communication with the third generator 12, and the third generator 12 has a refrigerant liquid pipe. The passage throttle valve 18 is in communication with the condenser 5, and the third generator 12 is further connected to the first absorber 3 by a refrigerant vapor passage.

2, in the process, the refrigerant vapor generated by the second generator 2 is supplied to the third generator 12 as a driving heat medium, and a part of the dilute solution of the second absorber 4 enters the third generator 12 via the third solution heat exchanger 15 The refrigerant vapor flows through the third generator 12, The solution heated into it releases and supplies refrigerant vapor to the first absorber 3, and the concentrated solution of the third generator 12 enters the second absorber 4 through the third solution pump 14 and the third solution heat exchanger 15, flowing through The refrigerant vapor of the third generator 12 is exothermic into a refrigerant liquid, and then enters the condenser 5 via the throttle valve 18 to form a staged condensation second type absorption heat pump.

The staged condensing second type absorption heat pump shown in Figure 16 is realized as follows:

1 structurally, in the stepwise condensing second type absorption heat pump shown in FIG. 1, adding a second condenser, a second refrigerant liquid pump, a third generator, a third solution pump, a third solution heat exchanger, and The throttle valve, the second absorber 4 is provided with a dilute solution line connected to the third generator 12 via the third solution heat exchanger 15, and the third generator 12 has a concentrated solution line through the third solution pump 14 and the third The solution heat exchanger 15 is in communication with the second absorber 4, and the second generator 2 has a refrigerant vapor passage communicating with the first absorber 3 to adjust the second generator 2 to have a refrigerant vapor passage communicating with the third generator 12. The third generator 12 is further connected to the second condenser 16 via a throttle valve 18, and the third generator 12 is further connected to the first absorber 3 by a refrigerant vapor passage. The third generator 12 Further, the refrigerant vapor passage is in communication with the second condenser 16, the second condenser 16 and the refrigerant liquid pipeline are connected to the evaporator 6 via the second refrigerant liquid pump 17, and the second condenser 16 has a cooling medium tube. The road is connected to the outside.

2, in the process, the refrigerant vapor generated by the second generator 2 is supplied to the third generator 12 as a driving heat medium, and a part of the dilute solution of the second absorber 4 enters the third generator 12 via the third solution heat exchanger 15 The refrigerant vapor flows through the third generator 12, and the solution heated therein is released and supplies the refrigerant vapor to the first absorber 3 and the second condenser 16, respectively, and the concentrated solution of the third generator 12 passes through the third solution pump. 14 and the third solution heat exchanger 15 enters the second absorber 4; the refrigerant vapor flowing through the third generator 12 is released into a refrigerant liquid, and then enters the second condenser 16 via the throttle valve 18, the second condensation The refrigerant vapor of the unit 16 is exothermic to the cooling medium to form a refrigerant liquid, and the refrigerant liquid of the second condenser 16 is pressurized into the evaporator 6 via the second refrigerant liquid pump 17, to form a staged condensation type II absorption heat pump.

The graded condensing second type absorption heat pump shown in Figure 17 is realized in this way -

1 structurally, in the stepwise condensing second type absorption heat pump shown in Figure 1, adding a second condenser, a second refrigerant liquid pump, a third generator, a third solution heat exchanger and a throttle valve, The second generator 2 has a concentrated solution line connected to the second absorber 4 via the second solution pump 8 and the second solution heat exchanger 11 to adjust the second generator 2 to have a concentrated solution line through the third solution heat exchanger 15 is in communication with the third generator 12, and the third generator 12 has a concentrated solution line connected to the second absorber 4 via the second solution pump 8, the third solution heat exchanger 15, and the second solution heat exchanger 11. The second generator 2 has a refrigerant vapor passage connected to the first absorber 3 to be adjusted to a second generator 2, and the refrigerant vapor passage is in communication with the third generator 12, and the third generator 12 has a refrigerant liquid line. The throttle valve 18 is in communication with the second condenser 16. The third generator 12 is further connected to the first absorber 3 via a refrigerant vapor passage, and the third generator 12 and the refrigerant vapor passage are connected to the second condenser 16. The second condenser 16 further has a refrigerant liquid line through the second refrigerant liquid pump 17 and steaming The hair unit 6 is connected, and the second condenser 16 and the cooling medium line are in communication with the outside.

2 In the process, the refrigerant vapor generated by the second generator 2 is supplied to the third generator 12 to drive the heat medium, and the concentrated solution of the second generator 2 passes through the third solution heat exchanger 15 to enter the third generator 12, which is cold. The agent vapor flows through the third generator 12, and the solution heated therein is released and supplies the refrigerant vapor to the first absorber 3 and the second condenser 16, respectively, and the concentrated solution of the third generator 12 passes through the second solution pump 8. The third solution heat exchanger 15 and the second solution heat exchanger 11 enter the second absorber 4; the refrigerant vapor flowing through the third generator 12 is released into a refrigerant liquid, and then enters the second through the throttle valve 18. The condenser 16 and the refrigerant vapor of the second condenser 16 are exothermic to the cooling medium to form a refrigerant liquid, and the refrigerant liquid of the second condenser 16 is pressurized by the second refrigerant liquid pump 17 into the evaporator 6 to form a stepwise condensation. The second type of absorption heat pump.

The staged condensing second type absorption heat pump shown in Figure 18 is realized as follows:

1 structurally, in the stepwise condensing second type absorption heat pump shown in FIG. 1, adding a second condenser, a second refrigerant liquid pump, a third generator, a third solution pump, a third solution heat exchanger, and Throttle valve, the second absorber 4 has a dilute solution line The second solution heat exchanger 11 communicates with the second generator 2 to adjust the second absorber 4 to have a dilute solution line connected to the third generator 12 via the second solution heat exchanger 11 , and the third generator 12 has The concentrated solution line is in communication with the second generator 2 via the third solution pump 14 and the third solution heat exchanger 15, and the second generator 2 has a concentrated solution line through the second solution pump 8 and the second solution heat exchanger 11 is connected to the second absorber 4 to be adjusted so that the second generator 2 has a concentrated solution line communicating with the second absorber 4 via the third solution heat exchanger 15, the second solution pump 8, and the second solution heat exchanger 11 The second generator 2 has a refrigerant vapor passage connected to the first absorber 3 to be adjusted to a second generator 2, and the refrigerant vapor passage is in communication with the third generator 12, and the third generator 12 has a refrigerant liquid line. The throttle valve 18 is in communication with the second condenser 16. The third generator 12 is further connected to the first absorber 3 via a refrigerant vapor passage, and the third generator 12 and the refrigerant vapor passage are connected to the second condenser 16. The second condenser 16 and the refrigerant liquid line are connected to the evaporator 6 via the second refrigerant liquid pump 17, and the second condenser 16 is further The coolant line is in communication with the outside.

2 In the process, the refrigerant vapor generated by the second generator 2 is supplied to the third generator 12 to drive the heat medium, and the diluted solution of the second absorber 4 enters the third generator 12 through the second solution heat exchanger 11, which is cold. The agent vapor flows through the third generator 12, and the solution heated therein is released and supplies the refrigerant vapor to the first absorber 3 and the second condenser 16, respectively, and the concentrated solution of the third generator 12 passes through the third solution pump 14 And the third solution heat exchanger 15 enters the second generator 2, and the concentrated solution of the second generator 2 enters the second absorber through the third solution heat exchanger 15, the second solution pump 8, and the second solution heat exchanger 11. 4; the refrigerant vapor flowing through the third generator 12 is exothermic into a refrigerant liquid, and then enters the second condenser 16 through the throttle valve 18, and the refrigerant vapor of the second condenser 16 is radiated to the cooling medium to form a refrigerant. The liquid, the refrigerant liquid of the second condenser 16 is pressurized into the evaporator 6 via the second refrigerant liquid pump 17, to form a staged condensation type II absorption heat pump.

The staged condensing second type absorption heat pump shown in Fig. 19 is realized by adding a second throttle valve to cancel the first generator 1 to communicate with the outside in the staged condensing type II absorption heat pump shown in Fig. 16. The residual heat medium pipeline, the second generator 2 is connected with the first generator 1 after the refrigerant vapor passage is connected, and the first generator 1 and the refrigerant liquid pipeline are connected to the second condenser 16 via the second throttle valve 20 , forming a graded condensation second type absorption heat pump.

The graded condensing second type absorption heat pump shown in Figure 20 is realized in this way -

1 structurally, in the stepwise condensing second type absorption heat pump shown in FIG. 3, adding a second condenser, a second refrigerant liquid pump, a third generator, a third solution heat exchanger and a throttle valve, The second generator 2 has a concentrated solution line connected to the second absorber 4 via the second solution pump 8 and the second solution heat exchanger 11 to adjust the second generator 2 to have a concentrated solution line through the third solution heat exchanger 15 is in communication with the third generator 12, and the third generator 12 has a concentrated solution line connected to the second absorber 4 via the second solution pump 8, the third solution heat exchanger 15, and the second solution heat exchanger 11. The second generator 2 has a refrigerant vapor passage connected to the first absorber 3 to be adjusted to a second generator 2, and the refrigerant vapor passage is in communication with the third generator 12, and the third generator 12 has a refrigerant liquid line. The throttle valve 18 is in communication with the second condenser 16. The third generator 12 is further connected to the first absorber 3 via a refrigerant vapor passage, and the third generator 12 and the refrigerant vapor passage are connected to the second condenser 16. The second condenser 16 further has a refrigerant liquid line through the second refrigerant liquid pump 17 and steaming The generator 6 is connected, the second condenser 16 and the cooling medium pipeline are connected to the outside; the second throttle valve is further added, and the residual heat medium pipeline connecting the first generator 1 and the newly added generator A to the outside is cancelled. The second generator 2 adds a refrigerant vapor channel to sequentially connect the first generator 1 and the new generator A, and then adds a new generator A and then a refrigerant liquid line to communicate with the condenser 5 via the second throttle valve 20.

2 In the process, the refrigerant vapor generated by the second generator 2 is divided into two paths - the first path is supplied to the third generator 12 as a driving heat medium, and the second path is supplied to the first generator 1 and the new generator A. Driving the heat medium; the concentrated solution of the second generator 2 enters the third generator 12 through the third solution heat exchanger 15, and the refrigerant vapor flows through the third generator 12, and the solution heated into the solution is released and respectively directed to the first An absorber 3 and a second condenser 16 provide refrigerant vapor, and the concentrated solution of the third generator 12 enters the second absorber via the second solution pump 8, the third solution heat exchanger 15, and the second solution heat exchanger 11. 4, through the third The refrigerant vapor of the generator 12 is radiated into a refrigerant liquid, and then enters the second condenser 16 through the throttle valve 18, and the refrigerant vapor of the second condenser 16 is radiated to the cooling medium to form a refrigerant liquid, and the second condenser The refrigerant liquid of 16 is pressurized into the evaporator 6 by the second refrigerant liquid pump 17; the refrigerant vapor flows through the first generator 1 and the newly added generator A in sequence and completes the corresponding solution heating process, and then releases the heat into a refrigerant. The liquid is then throttled into the condenser 5 via the second throttle valve 20 to form a staged condensing second type absorption heat pump.

The graded condensing second type absorption heat pump shown in Figure 21 is realized in this way -

1Structurally, in the stepwise condensing second type absorption heat pump shown in FIG. 16, the fourth generator, the fourth solution pump, the fourth solution heat exchanger and the second throttle valve are added, and the second absorber 4 is added. The dilute solution line is connected to the fourth generator 21 via the fourth solution heat exchanger 23, and the fourth generator 21 has a concentrated solution line through the fourth solution pump 22 and the fourth solution heat exchanger 23 and the second absorber. 4 communicating, the third generator 12 has a refrigerant vapor passage connected to the first absorber 3 and the second condenser 16 respectively, and is adjusted to be the fourth generator 12 having the refrigerant vapor passage and the fourth generator 21 connected to the fourth The generator 21 further has a refrigerant liquid pipeline connected to the second condenser 16 via the second throttle 20, and the fourth generator 21 has a refrigerant vapor passage communicating with the first absorber 3, and the fourth generator 21 is further A refrigerant vapor passage is in communication with the second condenser 16.

In the second process, a portion of the dilute solution of the second absorber 4 enters the fourth generator 21 via the fourth solution heat exchanger 23, and the refrigerant vapor generated by the third generator 12 is supplied to the fourth generator 21 for driving the heat medium. The refrigerant vapor flows through the fourth generator 21, and the solution heated therein is released and supplies the refrigerant vapor to the first absorber 3 and the second condenser 16, respectively, and the concentrated solution of the fourth generator 21 passes through the fourth solution pump. The 22 and fourth solution heat exchangers 23 enter the second absorber 4, and the refrigerant vapor flowing through the fourth generator 21 is released into a refrigerant liquid, and then throttled through the second throttle valve 20 into the second condenser 16. , forming a graded condensation second type absorption heat pump.

The graded condensing second type absorption heat pump shown in Figure 22 is realized as follows:

1 Structurally, in the staged condensing type II absorption heat pump shown in FIG. 17, the fourth generator, the fourth solution heat exchanger and the second throttle valve are added, and the third generator 12 has a concentrated solution line. The second solution pump 8 is connected to the third solution heat exchanger 15 to be adjusted to be the third generator 12. The concentrated solution line is connected to the fourth generator 21 via the fourth solution heat exchanger 23, and the fourth generator 21 has The concentrated solution line communicates with the third solution heat exchanger 15 via the second solution pump 8 and the fourth solution heat exchanger 23, and the third generator 12 has a refrigerant vapor channel respectively with the first absorber 3 and the second condensation The device 16 is connected to be adjusted so that the third generator 12 has a refrigerant vapor passage communicating with the fourth generator 21, and then the fourth generator 21 is further connected to the second condenser 16 via the second throttle valve 20, The fourth generator 21 is further provided with a refrigerant vapor passage communicating with the first absorber 3, and the fourth generator 21 and the refrigerant vapor passage are in communication with the second condenser 16.

2 In the process, the refrigerant vapor generated by the third generator 12 is supplied to the fourth generator 21 to drive the heat medium, and the concentrated solution of the third generator 12 enters the fourth generator 21 through the fourth solution heat exchanger 23, which is cold. The agent vapor flows through the fourth generator 21, and the solution heated therein is released and supplies the refrigerant vapor to the first absorber 3 and the second condenser 16, respectively, and the concentrated solution of the fourth generator 21 passes through the second solution pump 8. The fourth solution heat exchanger 23, the third solution heat exchanger 15 and the second solution heat exchanger 11 enter the second absorber 4, and the refrigerant vapor flowing through the fourth generator 21 is released into a refrigerant liquid, and then The second throttle valve 20 is throttled into the second condenser 16 to form a staged condensing second type absorption heat pump.

The staged condensing second type absorption heat pump shown in Figure 23 is realized as follows:

1 Structurally, in the stepwise condensing second type absorption heat pump shown in FIG. 18, the fourth generator, the fourth solution pump, the fourth solution heat exchanger, and the second throttle are added, and the second absorber 4 is added. The dilute solution line is connected to the third generator 12 via the second solution heat exchanger 11 to be adjusted to be the second absorber 4, and the dilute solution line is connected to the fourth generator 21 via the second solution heat exchanger 11 and the fourth The generator 21 further has a concentrated solution line connected to the third generator 12 via the fourth solution pump 22 and the fourth solution heat exchanger 23, and the second generator 2 has a concentrated solution line through the third solution heat exchanger 15 And communicating with the second solution pump 8 and the second solution heat exchanger 11 to adjust the second generator 2 to have a concentrated solution line through the third solution heat exchanger 15, the fourth solution is hot The converter 23 and the second solution pump 8 are in communication with the second solution heat exchanger 11, and the third generator 12 has a refrigerant vapor passage connected to the first absorber 3 and the second condenser 16 to be respectively adjusted to a third generator. 12, after the refrigerant vapor passage is connected with the fourth generator 21, the fourth generator 21 has a refrigerant liquid pipeline connected to the second condenser 16 via the second throttle valve 20, and the fourth generator 21 has a refrigerant. The steam passage is in communication with the first absorber 3, and the fourth generator 21 also has a refrigerant vapor passage in communication with the second condenser 16.

2 In the process, the refrigerant vapor generated by the third generator 12 is supplied to the fourth generator 21 to drive the heat medium, and the diluted solution of the second absorber 4 enters the fourth generator 21 through the second solution heat exchanger 11, which is cold. The agent vapor flows through the fourth generator 21, and the solution heated therein is released and supplies the refrigerant vapor to the first absorber 3 and the second condenser 16, respectively, and the concentrated solution of the fourth generator 21 passes through the fourth solution pump 22 And the fourth solution heat exchanger 23 enters the third generator 12, and the concentrated solution of the third generator 12 enters the second generator 2 through the third solution pump 14 and the third solution heat exchanger 15, the second generator 2 The concentrated solution enters the second absorber 4 through the third solution heat exchanger 15, the fourth solution heat exchanger 23, the second solution pump 8, and the second solution heat exchanger 11, and flows through the refrigerant vapor of the fourth generator 21. The heat is cooled into a refrigerant liquid, and then throttled into the second condenser 16 through the second throttle valve 20 to form a staged condensation second type absorption heat pump.

The staged condensing type II absorption heat pump shown in Fig. 24 is realized in the same manner - in the staged condensing type II absorption heat pump shown in Fig. 22, the third section is increased, and the first generator 1 is disconnected from the outside. The residual heat medium pipeline, the third generator 12 is connected with the first generator 1 after the refrigerant vapor passage is connected, and the first generator 1 is further connected with the condenser 5 through the third throttle valve 24 to form a refrigerant liquid pipeline. Graded condensing the second type of absorption heat pump.

The graded condensing second type absorption heat pump shown in Figure 25 is realized as follows:

In the staged condensing type II absorption heat pump shown in FIG. 23, the third section is increased, the waste heat medium line of the first generator 1 is connected to the outside, and the second generator 2 is provided with the refrigerant vapor channel and the After the generator 1 is connected, the first generator 1 has a refrigerant liquid line connected to the condenser 5 or the second condenser 16 via the third throttle valve 24 to form a staged condensation type II absorption heat pump.

The effect that can be achieved by the technology of the present invention - the hierarchical condensing type II absorption heat pump proposed by the present invention has the following effects and advantages -

(1) Hierarchical condensing can achieve grading improvement of the residual heat temperature, which can increase the residual heat temperature and realize the deep utilization of low temperature waste heat.

(2) The first absorber and the condenser or the newly added absorber jointly complete a part of the temperature drop process of the waste heat load, which is beneficial to reduce the heat transfer temperature difference, reduce the irreversible factor, and improve the thermodynamic perfection.

(3) The residual heat is used by the first generator, the second generator and the evaporator, respectively, which is beneficial to the deep utilization of the waste heat resources.

(4) The staged condensing type II absorption heat pump with regenerative cooling end can further increase the residual heat temperature and deep utilization of waste heat resources, and realize the continuous performance of the heat pump performance index within a certain range.

(5) The grading and condensing type II absorption heat pump including the single-stage process, when the temperature of the cooling medium changes, the ratio of the single-stage process and the two-stage process to the increase of the residual heat temperature changes, which is beneficial to the improvement of the waste heat resource. Utilization rate.

(6) The proposed classification and condensation type II absorption heat pump enriches the type and process of the absorption heat pump, can realize the classification and elevation of the waste heat temperature, expands and enriches the application range of the absorption heat pump, and has good creativity and novelty. And practicality.

Claims

1. Staged condensation type II absorption heat pump, mainly by first generator, second generator, first absorber, second absorber, condenser, evaporator, first solution pump, second solution pump, cold a liquid medium pump, a first solution heat exchanger and a second solution heat exchanger; the first absorber (3) has a dilute solution line through the first solution pump (7) and the first solution heat exchanger (10) In communication with the first generator (1), the first generator (1) and the concentrated solution line are in communication with the first absorber (3) via the first solution heat exchanger (10), the first generator (1) There is also a refrigerant vapor passage communicating with the condenser (5), and the condenser (5) and the refrigerant liquid line are connected to the evaporator (6) via the refrigerant liquid pump (9), and the evaporator (6) is also cooled. a vapor channel is connected to the second absorber (4), and the second absorber (4) and the dilute solution line are connected to the second generator (2) via the second solution heat exchanger (11), the second generator (2) There is also a concentrated solution line connected to the second absorber (4) via the second solution pump (8) and the second solution heat exchanger (11), the second issue The refrigerant (2) is also connected to the first absorber (3), and the first generator (1), the second generator (2) and the evaporator (6) respectively have a residual heat medium pipeline and an external Connected, the first absorber (3) and the condenser (5) respectively have a cooling medium line communicating with the outside, and the second absorber (4) and the heated medium line are connected to the outside to form a graded condensation type II Absorption heat pump.

2. A staged condensing type II absorption heat pump, in the stepwise condensing type II absorption heat pump of claim 1, wherein the third generator, the third absorber, the third solution pump, and the third solution heat exchange are added a second absorber (4) having a dilute solution line connected to the second generator (2) via the second solution heat exchanger (11) to be adjusted to a second absorber (4) having a dilute solution line The two solution heat exchanger (11) is in communication with the third absorber (13), and the third absorber (13) has a dilute solution line through the third solution pump (14) and the third solution heat exchanger (15). The second generator (2) is connected, and the second generator (2) has a concentrated solution line connected to the second absorber (4) through the second solution pump (8) and the second solution heat exchanger (11) The second generator (2) has a concentrated solution line connected to the third generator (12) via the third solution heat exchanger (15), and the third generator (12) has a concentrated solution line through the second solution. The pump (8) and the second solution heat exchanger (11) are in communication with the second absorber (4), and the third generator (12) also has refrigerant vapor The passage is connected to the third absorber (13), the third generator (12) and the waste heat medium pipeline communicate with the outside, and the third absorber (13) and the cooling medium pipeline communicate with the outside to form a regenerative cooling. The end of the graded condensation of the second type of absorption heat pump.

3. The staged condensing type II absorption heat pump is a stepwise condensing type II absorption heat pump according to claim 1, adding a new generator, a new absorber, a new solution pump, and a new solution heat exchange. , the first generator (1) has a concentrated solution pipeline connected to the first absorber (3) through the first solution heat exchanger (10) to adjust to the first generator (1) has a concentrated solution pipeline A solution heat exchanger (10) is connected to the new generator (A), a new generator (A) is added, and a concentrated solution line is connected to the first absorber (3) via the new solution heat exchanger (D). , the first absorber (3) has a dilute solution pipeline connected to the first generator (1) through the first solution pump (7) and the first solution heat exchanger (10) to adjust to the first absorber (3) The dilute solution line is connected to the new absorber (B) via the first solution pump (7) and the new solution heat exchanger (D), and the absorber is added.

(B) The dilute solution line is connected to the first generator (1) via the new solution pump (C) and the first solution heat exchanger (10), and the new generator (A) and the refrigerant vapor channel are added. Connected to the newly added absorber (B), the new generator (A) and the waste heat medium pipeline are connected to the outside, and the new absorber (B) and the cooling medium pipeline are connected to the outside to form a regenerative cooling end. Graded condensing the second type of absorption heat pump.

4. The staged condensing type II absorption heat pump is a stepwise condensing type II absorption heat pump according to claim 2, adding a new generator, adding an absorber, adding a solution pump, and adding a solution heat exchange , the first generator (1) has a concentrated solution pipeline connected to the first absorber (3) through the first solution heat exchanger (10) to adjust to the first generator (1) has a concentrated solution pipeline A solution heat exchanger (10) is connected to the new generator (A), a new generator (A) is added, and a concentrated solution line is connected to the first absorber (3) via the new solution heat exchanger (D). , the first absorber (3) has a dilute solution pipeline through the first The solution pump (7) and the first solution heat exchanger (10) are connected to the first generator (1) to be adjusted to have a first absorber (3) having a dilute solution line through the first solution pump (7) and a new solution The heat exchanger (D) is connected to the newly added absorber (B), and the new absorber (B) is added to the dilute solution line via the new solution pump (C) and the first solution heat exchanger (10) and the first The generator (1) is connected, the new generator (A) and the refrigerant vapor channel are connected with the newly added absorber (B), and the new generator (A) and the waste heat medium pipeline are connected to the outside to add absorption. The device (B) also has a cooling medium line communicating with the outside to form a stepwise condensing second type absorption heat pump having a regenerative cooling end.

5. A staged condensing type II absorption heat pump, in any of the staged condensation type II absorption heat pumps of claims 1-4, adding a second condenser and a second refrigerant liquid pump, the second generator (2) Adding a refrigerant vapor channel and a second condenser

(16) Connected, the second condenser (16) and the refrigerant liquid line are connected to the evaporator (6) via the second refrigerant liquid pump (17), and the second condenser (16) and the cooling medium line Connected to the outside to form a graded condensate second type absorption heat pump including a single stage process.

6. A staged condensing type II absorption heat pump, in any of the staged condensation type II absorption heat pumps of claims 1-4, adding a second refrigerant liquid pump, canceling the condenser (5) from communicating with the outside Cooling medium line, condenser (5) Adding refrigerant liquid line through the second coolant liquid pump (17) and condenser (5) after the condenser (5) and then the refrigerant vapor channel and the first absorption The device (3) is connected to form a staged condensing type II absorption heat pump.

7. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps of any of claims 1-4, wherein the throttle valve is added to cancel the condenser (5) and the externally connected cooling medium The pipeline, the evaporator (6) is connected with the condenser (5) through the throttle valve (18) and the condenser (5), and then the refrigerant vapor passage is connected to the first absorber (3). A staged condensing second type absorption heat pump is formed.

8. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps of claims 3-4, adding a second refrigerant liquid pump, canceling the condenser (5) and adding The absorber (B) is respectively connected to the external cooling medium line, the condenser (5) is provided with a refrigerant liquid line through the second refrigerant liquid pump (17) and the new absorber (B) and the condenser (5) After connecting, the condenser (5) has a refrigerant vapor passage communicating with the first absorber (3), or the condenser (5) is provided with a refrigerant liquid pipeline through the second refrigerant liquid pump (17) in sequence with the condenser (5) Adding an absorber after connecting with the new absorber (B)

(B) A refrigerant vapor passage is connected to the first absorber (3) to form a staged condensing type II absorption heat pump.

9. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps of claims 3-4, adding a throttle valve, canceling the condenser (5) and adding a new absorber ( B) Cooling medium pipelines respectively communicating with the outside, the evaporator (6) is provided with a refrigerant liquid pipeline connected to the newly added absorber (B) and the condenser (5) through the throttle valve (18), and then the condenser ( 5) There is a refrigerant vapor passage communicating with the first absorber (3), or an evaporator (6) adding a refrigerant liquid pipeline through the throttle valve (18) in sequence with the condenser (5) and the newly added absorber ( B) Adding an absorber after communication (B) A refrigerant vapor channel is connected to the first absorber (3) to form a staged condensing type II absorption heat pump.

10. The staged condensing type II absorption heat pump is characterized in that, in any of the staged condensing type II absorption heat pumps of claims 1 and 3, the absorption-evaporator, the second refrigerant pump, and the third absorber are added. a third solution pump and a third solution heat exchanger, wherein the second absorber (4) has a dilute solution line connected to the second generator (2) via the second solution heat exchanger (11) to be adjusted to a second absorption The (4) dilute solution line is directly connected to the absorption-evaporator (25), the absorption-evaporator (25) and the dilute solution line are passed through the third solution pump (14) and the third solution heat exchanger (15). ) communicating with the third absorber (13), the third absorber (13) further having a dilute solution line passing through the third solution heat exchanger (15) and the second solution heat exchanger (11) and the second generator ( 2) Connected, the evaporator (6) adds a refrigerant vapor channel to the absorption-evaporator (25), and the condenser (5) adds a coolant line through the second coolant pump (17) and the absorption-evaporator (25) After absorption, the absorption-evaporator (25) and then the refrigerant The steam passage is in communication with the third absorber (13), and the third absorber (13) and the heated medium line communicate with the outside to form a heat absorption and condensation condensing of the second type of absorption heat pump.

11. The staged condensing type II absorption heat pump is characterized in that in any of the stepwise condensing type II absorption heat pumps according to claims 1 and 3, the absorption-evaporator, the second refrigerant pump, and the third absorber are added. a third solution pump and a third solution heat exchanger, wherein the second absorber (4) has a dilute solution line connected to the second generator (2) via the second solution heat exchanger (11) to be adjusted to a second absorption (4) having a dilute solution line through the third solution pump (14) and the third solution heat exchanger (15) and the third absorber

(13) connected, the third absorber (13) and the dilute solution line are connected to the absorption-evaporator (25) via the third solution heat exchanger (15), the absorption-evaporator (25) and the dilute solution tube The second solution heat exchanger (11) is in communication with the second generator (2), the evaporator (6) is provided with a refrigerant vapor passage communicating with the absorption-evaporator (25), and the condenser (5) is provided with a refrigerant liquid. The pipeline is connected to the absorption-evaporator (25) through the second refrigerant liquid pump (17), and then the absorption-evaporator (25) is connected to the third absorber (13) through the refrigerant vapor passage, and the third absorber ( 13) There is also a medium to be heated and communicated with the outside to form a second type of absorption heat pump for heat classification and condensation at both ends.

12. A staged condensing type II absorption heat pump in which any of the classified condensing type II absorption heat pumps of claims 10-11 is provided with the addition of a new refrigerant liquid pump and a second evaporator, and the evaporator is eliminated ( 6) a refrigerant vapor passage communicating with the absorption-evaporator (25), and a condenser (5) additional refrigerant liquid line connected to the second evaporator (19) via a new refrigerant liquid pump, the second evaporator ( 19) There is also a refrigerant vapor passage communicating with the absorption-evaporator (25), and the second evaporator (19) and the waste heat medium conduit are in communication with the outside to form a staged condensation second type absorption heat pump.

13. A staged condensing type II absorption heat pump, which is characterized in that any of the stepwise condensing type II absorption heat pumps of claim 10 is provided with the addition of a new throttle valve, a second evaporator and a solution throttle. The second absorber (4) has a dilute solution line directly connected to the absorption-evaporator (25) and is adjusted to a second absorber (4) having a dilute solution line through the solution throttle valve and the absorption-evaporator

(25) Connect, cancel the evaporator (6) refrigerant vapor passage communicating with the absorption-evaporator (25), and add the refrigerant liquid pipeline to the evaporator (6) via the new throttle valve (E) and the second evaporation The second evaporator (19) is connected to the second evaporator (19), and the refrigerant vapor passage is connected to the absorption-evaporator (25), and the second evaporator (19) and the waste heat medium pipeline are connected to the outside to form a stepwise condensation section. The second type of absorption heat pump.

14. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps of claim 11, adding a new throttle valve and a second evaporator, canceling the evaporator (6) and Absorber-evaporator (25) connected refrigerant vapor passage, evaporator (6) additional refrigerant liquid line connected to second evaporator (19) via new throttle valve (E), second evaporator (19) There is also a refrigerant vapor passage communicating with the absorption-evaporator (25), and the second evaporator (19) and the waste heat medium conduit are in communication with the outside to form a staged condensation second type absorption heat pump.

15. A staged condensing type II absorption heat pump, in any of the staged condensation type II absorption heat pumps of claims 1-2, comprising an absorption-evaporator, a second refrigerant pump, and an additional absorber a new solution pump and a new solution heat exchanger, the first absorber (3) having a dilute solution line through the first solution pump (7) and the first solution heat exchanger (10) and the first generator ( 1) Connected to the first absorber (3) The dilute solution line is directly connected to the absorption-evaporator (25), the absorption-evaporator (25) and the dilute solution line are passed through the first solution pump (7) and The new solution heat exchanger (D) is connected to the new absorber (B), the new absorber (B) is added, and the dilute solution line is added to the new solution pump (C) and the first solution heat exchanger (10). Connected with the first generator (1), and the first generator (1) has a concentrated solution pipeline connected to the first absorber (3) through the first solution heat exchanger (10) to be adjusted to the first generator (1) The concentrated solution line is connected to the first absorber (3) via the first solution heat exchanger (10) and the new solution heat exchanger (D), and the condenser (5) is added. The refrigerant liquid pipeline is connected to the absorption-evaporator (25) via the second refrigerant liquid pump (17), and then the absorption-evaporator (25) is connected to the new absorber (B) through the refrigerant vapor passage. The second generator (2) is provided with a refrigerant vapor passage communicating with the absorption-evaporator (25), a new absorber (B) and a cooling medium line communicating with the outside to form a staged condensation second type absorption heat pump.

16. A staged condensing type II absorption heat pump, in any of the staged condensation type II absorption heat pumps of claims 1-2, comprising an absorption-evaporator, a second refrigerant pump, and an additional absorber a new solution pump and a new solution heat exchanger, the first absorber (3) having a dilute solution line through the first solution pump (7) and the first solution heat exchanger (10) and the first generator ( 1) Connected to the first absorber (3) with a dilute solution line, the first solution pump (7) and the new solution heat exchanger (D) are connected to the new absorber (B), adding a absorber (B) There is also a dilute solution line connected to the absorption-evaporator (25) via a new solution heat exchanger (D), an absorption-evaporator (25) and a dilute solution line via a new solution pump (C) and A solution heat exchanger (10) is in communication with the first generator (1), and the condenser (5) is provided with a refrigerant liquid line that is connected to the absorption-evaporator (25) through the second refrigerant liquid pump (17). - The evaporator (25) has a refrigerant vapor passage connected to the newly added absorber (B), and the second generator (2) adds a refrigerant vapor passage and absorption - The evaporator (25) is connected, the new absorber (B) and the cooling medium line are connected to the outside to form a staged condensing type II absorption heat pump.

17. The staged condensing type II absorption heat pump is mainly composed of a first generator, a second generator, a third generator, a first absorber, a second absorber, a third absorber, a condenser, an evaporator, and a first a solution pump, a second solution pump, a third solution pump, a refrigerant liquid pump, a first solution heat exchanger, a second solution heat exchanger and a third solution heat exchanger; the first absorber (3) has The dilute solution line is connected to the first generator (1) via the first solution pump (7) and the first solution heat exchanger (10), and the first generator (1) and the concentrated solution line are heated by the first solution The exchanger (10) is in communication with the first absorber (3), the first generator (1) and the refrigerant vapor passage are in communication with the condenser (5), and the condenser (5) and the refrigerant liquid line are cooled. The liquid pump (9) is connected to the evaporator (6), the evaporator (6) and the refrigerant vapor passage are connected to the third absorber (13), and the third absorber (13) and the dilute solution pipeline are The three-solution heat exchanger (15) is in communication with the third generator (12), and the third generator (12) is further soluble Solution pump via a third line (14) and a third solution heat exchanger (15) and the third absorber

(13) connected, the third generator (12) further has a refrigerant vapor passage communicating with the second absorber (4), the second absorber (4) and the dilute solution line passing through the second solution pump (8) and The second solution heat exchanger (11) is in communication with the second generator (2), and the second generator (2) has a concentrated solution line through the second solution heat exchanger (11) and the second absorber (4) Connected, the second generator (2) and the refrigerant vapor passage are in communication with the first absorber (3), the first generator (1), the second generator (2), the third generator (12), and the evaporation The device (6) further has a residual heat medium pipeline communicating with the outside, and the first absorber (3), the second absorber (4) and the condenser (5) respectively have a cooling medium pipeline communicating with the outside, the third absorption The device (13) is also connected to the outside by the heated medium line to form a staged condensing type II absorption heat pump.

18. A staged condensing type II absorption heat pump, wherein the second condenser and the second refrigerant liquid pump are added to the staged condensing type II absorption heat pump according to claim 17, and the second generator (2) is additionally provided The refrigerant vapor passage is in communication with the second condenser (16), and the second condenser (16) and the refrigerant liquid line are connected to the evaporator (6) via the second refrigerant liquid pump (17), the second condenser (16) There is also a cooling medium line that communicates with the outside to form a staged condensing second type absorption heat pump including a two-stage process.

19. A staged condensing type II absorption heat pump, in which the third type generator, the third solution pump, and the third solution heat exchanger are added to any of the staged condensation type II absorption heat pumps of claims 1 and 3. And a throttle valve, the second absorber (4) adds a dilute solution line through the third solution heat exchanger (15) to the third generator (12), the third generator (12) also has a concentrated solution line The third solution pump (14) and the third solution heat exchanger (15) are in communication with the second absorber (4), and the second generator (2) has a refrigerant vapor channel connected to the first absorber (3) Adjusted to the second generator (2) having a refrigerant vapor passage connected to the third generator (12), the third generator (12) and the refrigerant liquid line being throttled (18) and the condenser (5) ) Connected, the third generator (12) is further connected to the first absorber (3) by a refrigerant vapor passage to form a staged condensing second type absorption heat pump.

20. A staged condensing type II absorption heat pump, in which the third type generator, the third solution heat exchanger and the throttle valve are added to any of the staged condensing type II absorption heat pumps of claims 1 and 3. Adjusting the second generator (2) having a concentrated solution line through the second solution pump (8) and the second solution heat exchanger (11) to the second absorber (4) to adjust to the second generator (2) The concentrated solution line is connected to the third generator (12) via the third solution heat exchanger (15), and the third generator (12) has a concentrated solution line through the second solution pump (8), the third solution heat The exchanger (15) and the second solution heat exchanger (11) are in communication with the second absorber (4), and the second generator (2) has a refrigerant vapor passage connected to the first absorber (3) to be adjusted to The second generator (2) has a refrigerant vapor passage communicating with the third generator (12), and the third generator (12) is further connected to the condenser (5) via a throttle valve (18). The third generator (12) is further connected to the first absorber (3) via a refrigerant vapor passage to form a staged condensing second type absorption heat pump.

21. A staged condensing type II absorption heat pump, in which the third type generator, the third solution pump, and the third solution heat exchanger are added to any of the staged condensing type II absorption heat pumps of claims 1 and 3. And a throttle valve, the second absorber (4) has a dilute solution line connected to the second generator (2) via the second solution heat exchanger (11) to be adjusted to a second absorber (4) having a dilute solution tube The third solution (12) is in communication with the third generator (12), and the third generator (12) has a concentrated solution line through the third solution pump (14) and the third solution heat exchanger ( 15) communicating with the second generator (2), having the second generator (2) having a concentrated solution line through the second solution pump (8) and the second solution heat exchanger (11) and the second absorber (4) The communication is adjusted to a second generator (2) having a concentrated solution line through the third solution heat exchanger (15), the second solution pump (8), and the second solution heat exchanger (11) and the second absorber ( 4) Connect, adjust the second generator (2) refrigerant vapor channel to the first absorber (3) to adjust to the second generator (2) After the refrigerant vapor passage is connected with the third generator (12), the third generator (12) has a refrigerant liquid pipeline connected to the condenser (5) via the throttle valve (18), and the third generator (12) Further, a refrigerant vapor passage is connected to the first absorber (3) to form a staged condensation second type absorption heat pump.

22. A staged condensing type II absorption heat pump, wherein in any of the staged condensing second type absorption heat pumps of claims 1 and 3, a second condenser, a second refrigerant liquid pump, and a third generator are added a third solution pump, a third solution heat exchanger and a throttle valve, the second absorber (4) is provided with a dilute solution line connected to the third generator (12) via the third solution heat exchanger (15), The third generator (12) and the concentrated solution line are connected to the second absorber (4) via the third solution pump (14) and the third solution heat exchanger (15), and the second generator (2) is cooled. The agent vapor passage is connected to the first absorber (3) to be adjusted to be a second generator (2) having a refrigerant vapor passage communicating with the third generator (12), and the third generator (12) having a refrigerant liquid line The throttling (18) is in communication with the second condenser (16) or the condenser (5), and the third generator (12) has a refrigerant vapor passage communicating with the first absorber (3), the third generator (12) There is also a refrigerant vapor passage communicating with the second condenser (16), and the second condenser (16) and the refrigerant liquid conduit are second Agent pump (17) and the evaporator (6) in communication, a second condenser (16) also communicates with the external coolant lines to form a second fractional condensation absorption heat pump.

23. A staged condensing type II absorption heat pump, wherein in any of the staged condensing type II absorption heat pumps of claims 1 and 3, a second condenser, a second refrigerant liquid pump, and a third generator are added a third solution heat exchanger and a throttle valve, the second generator (2) having a concentrated solution line passing through the second solution pump (8) and the second solution heat exchanger (11) and the second absorber

(4) The communication is adjusted to be the second generator (2), the concentrated solution pipeline is connected to the third generator (12) via the third solution heat exchanger (15), and the third generator (12) is further provided with the concentrated solution tube. The second solution pump (8), the third solution heat exchanger (15) and the second solution heat exchanger (11) are in communication with the second absorber (4), and the second generator (2) has a refrigerant The steam passage is connected to the first absorber (3) and is adjusted to be a second generator (2) having a refrigerant vapor passage connected to the third generator (12) The refrigerant (12) is further connected to the second condenser (16) or the condenser (5) via a throttle valve (18), and the third generator (12) has a refrigerant vapor passage and a second An absorber (3) is connected, the third generator (12) and the refrigerant vapor passage are in communication with the second condenser (16), and the second condenser (16) and the refrigerant liquid line are passed through the second refrigerant. The liquid pump (17) is in communication with the evaporator (6), and the second condenser (16) and the cooling medium line are in communication with the outside to form a staged condensation type II absorption heat pump.

24. A staged condensing type II absorption heat pump, wherein in any of the staged condensing second type absorption heat pumps of claims 1 and 3, the second condenser, the second refrigerant liquid pump, and the third generator are added a third solution pump, a third solution heat exchanger and a throttle valve, and the second absorber (4) has a dilute solution line connected to the second generator (2) via the second solution heat exchanger (11) The second absorber (4) has a dilute solution line connected to the third generator (12) via the second solution heat exchanger (11), and the third generator (12) has a concentrated solution line through the third solution. The pump (14) and the third solution heat exchanger (15) are in communication with the second generator (2), and the second generator (2) has a concentrated solution line through the second solution pump (8) and the second solution heat The exchanger (11) is connected to the second absorber (4) and is adjusted to be a second generator (2) having a concentrated solution line through the third solution heat exchanger

(15), the second solution pump (8) and the second solution heat exchanger (11) are in communication with the second absorber (4), and the second generator (2) has a refrigerant vapor passage and a first absorber ( 3) The communication is adjusted to the second generator (2), the refrigerant vapor channel is connected to the third generator (12), and the third generator (12) has a refrigerant liquid pipeline through the throttle valve (18) and the The second condenser (16) or the condenser (5) is connected, the third generator (12) has a refrigerant vapor passage communicating with the first absorber (3), and the third generator (12) has a refrigerant vapor passage It is in communication with the second condenser (16), and the second condenser (16) and the refrigerant liquid line are connected to the evaporator (6) via the second refrigerant liquid pump (17), and the second condenser (16) is further A cooling medium line is connected to the outside to form a staged condensing type II absorption heat pump.

25. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps described in claims 19-24, having no regenerative cooling end, adding a second throttle valve, canceling the first occurrence (1) a residual heat medium line connected to the outside, a second generator (2) adding a refrigerant vapor passage to communicate with the first generator (1), the first generator (1) and then a refrigerant liquid line The second throttle valve (20) is in communication with the condenser (5) or the second condenser (16) to form a staged condensing second type absorption heat pump.

26. A staged condensing type II absorption heat pump, in any of the staged condensing second type absorption heat pumps of claim 19-24 having a regenerative cooling end, adding a second throttle valve to cancel the first occurrence The first generator (1) and the new generator (A) are connected to the external generator (1) and the new generator (A) respectively. Then add the generator (A) and then the refrigerant liquid line is connected to the condenser (5) or the second condenser (16) via the second throttle valve (20) to form a staged condensing type II absorption heat pump. .

27. A staged condensing type II absorption heat pump, wherein in any of the staged condensing type II absorption heat pumps of claim 19, the second throttle valve, the fourth generator, the fourth solution pump, and the fourth a solution heat exchanger, a second absorber (4), a dilute solution line connected to the fourth generator (21) via the fourth solution heat exchanger (23), and a fourth generator (21) and a concentrated solution line The fourth solution pump (22) and the fourth solution heat exchanger (23) are in communication with the second absorber (4), and the third generator (12) has a refrigerant vapor channel connected to the first absorber (3). Adjusted to a third generator (12) having a refrigerant vapor passage in communication with the fourth generator (21), the fourth generator (21) having a refrigerant liquid line passing through the second throttle valve (20) and the condenser (5) Connected, the fourth generator (21) is further connected to the first absorber (3) by a refrigerant vapor passage to form a staged condensing type II absorption heat pump.

28. A staged condensing second type absorption heat pump, wherein in any of the staged condensing second type absorption heat pumps of claim 20, the second throttle valve, the fourth generator and the fourth solution heat exchanger are added The third generator (12) has a concentrated solution The pipeline is connected to the third solution heat exchanger (15) via the second solution pump (8) to be adjusted to a third generator (12) having a concentrated solution pipeline through the fourth solution heat exchanger (23) and the fourth generator (21) connected, the fourth generator (21) and the concentrated solution line is connected to the third solution heat exchanger (15) via the second solution pump (8) and the fourth solution heat exchanger (23), The third generator (12) has a refrigerant vapor passage connected to the first absorber (3) and is adjusted to be a third generator (12) having a refrigerant vapor passage connected to the fourth generator (21) and a fourth generator (21) The refrigerant liquid pipeline is connected to the condenser (5) via the second throttle valve (20), and the fourth generator (20) is further connected with the first absorber (3) through the refrigerant vapor passage to form a classification. Condensing the second type of absorption heat pump.

29. A staged condensing second type absorption heat pump, wherein in any of the staged condensing type II absorption heat pumps of claim 21, the second throttle valve, the fourth generator, the fourth solution pump, and the fourth a solution heat exchanger, wherein the second absorber (4) has a dilute solution line connected to the third generator (12) via the second solution heat exchanger (11) to be adjusted to a second absorber (4) having a dilute solution tube The second solution heat exchanger (11) is in communication with the fourth generator (21), and the fourth generator (21) has a concentrated solution line through the fourth solution pump (22) and the fourth solution heat exchanger ( 23) communicating with the third generator (12), having the second generator (2) having a concentrated solution line through the third solution heat exchanger (15) and the second solution pump (8) and the second solution heat exchanger (11) The communication is adjusted to the second generator (2). The concentrated solution line has a third solution heat exchanger (15), a fourth solution heat exchanger (23), and a second solution pump (8) and a second solution. The heat exchanger (11) is connected, and the third generator (12) has a refrigerant vapor passage connected to the first absorber (3) and is adjusted to The third generator (12) has a refrigerant vapor passage connected to the fourth generator (21), and the fourth generator (21) has a refrigerant liquid line through the second throttle valve (20) and the condenser (5) Connected, the fourth generator (21) is further connected to the first absorber (3) via a refrigerant vapor passage to form a staged condensing second type absorption heat pump.

30. A staged condensing type II absorption heat pump, wherein in any of the staged condensing type II absorption heat pumps of claim 22, the fourth generator, the fourth solution pump, the fourth solution heat exchanger, and the Two throttle valve, second absorber (4), a dilute solution pipeline is connected to the fourth generator (21) via the fourth solution heat exchanger (23), and the fourth generator (21) has a concentrated solution pipeline The fourth solution pump (22) and the fourth solution heat exchanger (23) are in communication with the second absorber (4), and the third generator (12) has a refrigerant vapor channel and a first absorber (3) The second generator (12) is connected to the second condenser (16), and the fourth generator (21) is connected to the fourth generator (21) after the refrigerant vapor passage is connected to the fourth generator (21). The throttle valve (20) is in communication with the second condenser (16), the fourth generator (21) has a refrigerant vapor passage communicating with the first absorber (3), and the fourth generator (21) is also provided with a refrigerant The steam passage is in communication with the second condenser (16) to form a staged condensing second type of absorption heat pump.

31. A staged condensing second type absorption heat pump, wherein in any of the staged condensing type II absorption heat pumps of claim 23, the fourth generator, the fourth solution heat exchanger and the second throttle valve are added, The third generator (12) has a concentrated solution line connected to the third solution heat exchanger (15) via the second solution pump (8) to be adjusted to a third generator (12) having a concentrated solution line through the fourth solution The heat exchanger (23) is in communication with the fourth generator (21), and the fourth generator (21) has a concentrated solution line through the second solution pump (8) and the fourth solution heat exchanger (23) and the third The solution heat exchanger (15) is connected, and the third generator (12) has a refrigerant vapor channel connected to the first absorber (3) and the second condenser (16) to be adjusted to a third generator.

(12) The fourth generator (21) after the refrigerant vapor passage is connected to the fourth generator (21), and the refrigerant liquid line is connected to the second condenser (16) via the second throttle valve (20) , the fourth generator (21) has a refrigerant vapor passage and a first absorber

(3) Connected, the fourth generator (21) also has a refrigerant vapor passage communicating with the second condenser (16) to form a staged condensing type II absorption heat pump.

32. A staged condensing type II absorption heat pump, wherein in the stepwise condensing type II absorption heat pump of claim 24, the fourth generator, the fourth solution pump, the fourth solution heat exchanger, and the fourth Two throttle valve, the second absorber (4) The dilute solution line is connected to the third generator (12) via the second solution heat exchanger (11) to be adjusted to a second absorber (4) having a dilute solution line passing through the second solution heat exchanger (11) and The fourth generator (21) is connected, and the fourth generator (21) is further connected to the third generator (12) via the fourth solution pump (22) and the fourth solution heat exchanger (23). The second generator (2) has a concentrated solution line connected to the second solution heat exchanger (15) and the second solution pump (8) to the second solution heat exchanger (11) to be adjusted to the second generator (2) The concentrated solution line is connected to the second solution heat exchanger (11) via the third solution heat exchanger (15), the fourth solution heat exchanger (23) and the second solution pump (8), and the third generator is (12) The refrigerant vapor passage is connected to the first absorber (3) and the second condenser (16), respectively, to be adjusted to be the third generator (12) having the refrigerant vapor passage connected to the fourth generator (21) The fourth generator (21) further has a refrigerant liquid line connected to the second condenser (16) via the second throttle valve (20), and the fourth generator (21) has a refrigerant vapor passage and (3) communicating an absorber, a fourth generator (21), the refrigerant vapor channel and a second condenser (16) communicating, forming a second fractional condensation absorption heat pump.

33. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps described in claims 27-32 and having no regenerative cooling end, adding a third throttle valve to cancel the first occurrence The first generator (1) and the first generator (1) are connected to the first generator (1), and the second generator (2) is connected to the first generator (1), and the first generator (1) is further connected with the refrigerant liquid line. The third throttle valve (24) is in communication with the condenser (5) or the second condenser (16) to form a staged condensing second type absorption heat pump.

34. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps described in claims 27-32 and having no regenerative cooling end, adding a third throttle valve to cancel the first occurrence (1) The residual heat medium pipeline connected to the outside, the third generator (12) is connected with the first generator (1) after the refrigerant vapor passage is connected, and the first generator (1) has a refrigerant liquid pipeline The third throttle valve (24) is in communication with the condenser (5) or the second condenser (16) to form a staged condensing second type absorption heat pump.

35. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps described in claims 27-32 having a regenerative cooling end, adding a third throttle valve to cancel the first occurrence The first generator (1) and the new generator (A) are connected to the external generator (1) and the new generator (A) respectively. After that, a new generator (A) is added, and then a refrigerant liquid line is connected to the condenser (5) or the second condenser (16) through the third throttle valve (24) to form a staged condensing type II absorption heat pump. .

36. A staged condensing type II absorption heat pump, in any of the staged condensing type II absorption heat pumps of claim 27-32 having a regenerative cooling end, adding a third throttle valve to cancel the first occurrence The first generator (1) and the new generator (A) are connected to the external generator (1) and the newly added generator (A) respectively, and the third generator (12) is provided with a refrigerant vapor passage. After that, a new generator (A) is added, and then a refrigerant liquid line is connected to the condenser (5) or the second condenser (16) through the third throttle valve (24) to form a staged condensing type II absorption heat pump. .