CN214841777U - Double-effect gradient absorption heat pump - Google Patents
Double-effect gradient absorption heat pump Download PDFInfo
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- CN214841777U CN214841777U CN202120665878.2U CN202120665878U CN214841777U CN 214841777 U CN214841777 U CN 214841777U CN 202120665878 U CN202120665878 U CN 202120665878U CN 214841777 U CN214841777 U CN 214841777U
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Abstract
The invention provides a double-effect gradual change absorption heat pump, and belongs to the technical field of waste heat utilization and heat pumps. Mainly comprises a first generator 1, a second generator 2, an evaporator 3, a first absorber 4, a second absorber 5, a condenser 6, a first throttle valve 7, a second throttle valve 8, a first solution pump 9, a second solution pump 10, a first solution heat exchanger 12, a second solution heat exchanger 13 and a third solution heat exchanger 14; the first absorber provides dilute solution to the second absorber, the second absorber provides dilute solution to the first generator, the first generator provides concentrated solution to the second generator 2, the second generator provides concentrated solution to the first absorber, the first generator provides refrigerant steam to the second generator 2 and the second absorber 5, the second generator provides refrigerant steam to the condenser, the condenser provides refrigerant liquid to the evaporator, the evaporator provides refrigerant steam to the first absorber, and the first absorber, the second absorber and the condenser complete heat supply together to form the double-effect gradient absorption heat pump.
Description
The technical field is as follows:
the invention belongs to the field of heat pump/refrigeration technology and low-temperature waste heat utilization.
Background art:
the double-effect absorption heat pump unit is adopted to recover waste heat resources for heat supply, and has remarkable energy-saving, environment-friendly and economic benefits. On the occasion that the waste heat resources are rich, if the temperature of the waste heat resources is low or the heat supply temperature required by a user is high, the double-effect absorption heat pump unit cannot meet the heat requirement of the user due to the limitation of the generator generation temperature or the concentration of the generator working medium solution. In order to meet the heat supply requirement, a common method is to directly adopt a single-effect absorption heat pump to meet the user requirement, so that the problems of insufficient utilization of waste heat resources, high heat supply cost, small heat supply advantage, high investment recovery period and the like are caused.
When the waste heat temperature is low or the heat supply temperature is limited in the double-effect absorption heat pump unit, in order to more fully play the heating function of a driving heat medium in the generator, a heat supply end is added in the heat pump process to complete the heating requirement of a high-temperature section, meanwhile, the heat supply temperature of the double-effect heat pump unit is gradually increased according to the requirement of gradually transitioning to the severe cold heat supply temperature in the heat supply initial stage, gradual continuous change is realized in the performance index of the heat pump unit, on the premise of meeting the heat requirement of a user, the maximum high-efficiency energy conservation is realized, and the investment income is maximized.
The invention content is as follows:
the invention mainly aims to provide a double-effect gradual change absorption heat pump, and the specific contents of the invention are set forth in different items as follows:
1. the double-effect gradient absorption heat pump mainly comprises a first generator, a second generator, an evaporator, a first absorber, a second absorber, a condenser, a first throttling valve, a second throttling valve, a first solution pump, a second solution pump, a first solution heat exchanger, a second solution heat exchanger and a third solution heat exchanger; the first generator has a concentrated solution pipeline communicated with the second generator via a third solution heat exchanger, the second generator has a concentrated solution pipeline communicated with the first absorber via a first solution heat exchanger, the first absorber has a dilute solution pipeline communicated with the second absorber via a first solution pump, the first solution heat exchanger, the third solution heat exchanger and the second solution heat exchanger, the second absorber has a dilute solution pipeline communicated with the first generator via a second solution pump and the second solution heat exchanger, the first generator has a refrigerant vapor pipeline communicated with the condenser via a second generator and a second throttle valve, the first generator also has a refrigerant vapor pipeline communicated with the second absorber, the second generator has a refrigerant vapor channel communicated with the condenser, the condenser has a refrigerant liquid pipeline communicated with the evaporator via a first throttle valve, the evaporator has a refrigerant vapor channel communicated with the first absorber, the first generator is provided with a driving heat medium pipeline communicated with the outside, the evaporator is also provided with a waste heat medium pipeline communicated with the outside, and the first absorber, the second absorber and the condenser are respectively provided with a heated medium pipeline communicated with the outside to form the double-effect gradual change absorption heat pump.
2. The double-effect gradient absorption heat pump mainly comprises a first generator, a second generator, an evaporator, a first absorber, a second absorber, a condenser, a first throttling valve, a second throttling valve, a first solution pump, a third solution pump, a first solution heat exchanger, a second solution heat exchanger and a third solution heat exchanger; the first generator is provided with a concentrated solution pipeline which is communicated with the first absorber through a third solution heat exchanger and a first solution heat exchanger, the first absorber is provided with a dilute solution pipeline which is communicated with the second absorber through a first solution pump, the first solution heat exchanger and a second solution heat exchanger, the second absorber is provided with a dilute solution pipeline which is communicated with the second generator through a second solution heat exchanger, the second generator is provided with a concentrated solution pipeline which is communicated with the first generator through the third solution pump and the third solution heat exchanger, the first generator is provided with a refrigerant steam pipeline which is communicated with the condenser through a second generator and a second throttling valve, the first generator is also provided with a refrigerant steam pipeline which is communicated with the second absorber, the second generator is provided with a refrigerant steam channel which is communicated with the condenser, the condenser is provided with a refrigerant liquid pipeline which is communicated with the evaporator through the first throttling valve, the evaporator is provided with a refrigerant steam channel which is communicated with the first absorber, the first generator is provided with a driving heat medium pipeline communicated with the outside, the evaporator is provided with a waste heat medium pipeline communicated with the outside, and the first absorber, the second absorber and the condenser are respectively provided with a heated medium pipeline communicated with the outside to form the double-effect gradual change absorption heat pump.
3. The double-effect gradient absorption heat pump mainly comprises a first generator, a second generator, an evaporator, a first absorber, a second absorber, a condenser, a first throttling valve, a second throttling valve, a first solution pump, a third solution pump, a first solution heat exchanger, a second solution heat exchanger and a third solution heat exchanger; the first generator has a concentrated solution pipeline communicated with the second generator via a third solution heat exchanger, the second generator has a concentrated solution pipeline communicated with the second absorber via a third solution pump and a second solution heat exchanger, the second absorber has a dilute solution pipeline communicated with the first absorber via the first solution heat exchanger, the first absorber has a dilute solution pipeline communicated with the first generator via the first solution pump, the first solution heat exchanger, the second solution heat exchanger and the third solution heat exchanger, the first generator has a refrigerant vapor pipeline communicated with the condenser via the second generator and a second throttle valve, the first generator also has a refrigerant vapor pipeline communicated with the second absorber, the second generator has a refrigerant vapor channel communicated with the condenser, the condenser has a refrigerant liquid pipeline communicated with the evaporator via the first throttle valve, the evaporator has a refrigerant vapor channel communicated with the first absorber, the first generator is provided with a driving heat medium pipeline communicated with the outside, the evaporator is provided with a waste heat medium pipeline communicated with the outside, and the first absorber, the second absorber and the condenser are respectively provided with a heated medium pipeline communicated with the outside to form the double-effect gradual change absorption heat pump.
4. The double-effect gradient absorption heat pump mainly comprises a first generator, a second generator, an evaporator, a first absorber, a second absorber, a condenser, a first throttling valve, a second throttling valve, a first solution pump, a third solution pump, a first solution heat exchanger, a second solution heat exchanger and a third solution heat exchanger; the first absorber is provided with a dilute solution pipeline which is communicated with the second generator through a first solution pump, a first solution heat exchanger and a second solution heat exchanger and is communicated with the first generator through a third solution heat exchanger, the first generator is provided with a concentrated solution pipeline which is communicated with the second generator through a third solution heat exchanger and a concentrated solution pipeline of a third solution pump and is communicated with the second absorber through the second solution heat exchanger, the second absorber is provided with a dilute solution pipeline which is communicated with the first absorber through the first solution heat exchanger, the first generator is provided with a refrigerant steam pipeline which is communicated with the condenser through the second generator and a second throttle valve, the first generator is also provided with a refrigerant steam pipeline which is communicated with the second absorber, the second generator is provided with a refrigerant steam channel which is communicated with the condenser, the condenser is provided with a refrigerant liquid pipeline which is communicated with the evaporator through the first throttle valve, the evaporator is provided with a refrigerant steam channel which is communicated with the first absorber, the first generator is provided with a driving heat medium pipeline communicated with the outside, the evaporator is provided with a waste heat medium pipeline communicated with the outside, the first absorber, the second absorber and the condenser are respectively communicated with the outside through a heated medium pipeline, and the absorber and the condenser are respectively communicated with the outside through a heated medium pipeline to form the double-effect gradual-change absorption heat pump.
Description of the drawings:
figure 1 is a schematic view of the structure and flow of figure 1 of the double-effect gradual change absorption heat pump according to the present invention.
Figure 2 is a schematic view of the structure and flow of figure 2 of the double-effect gradual change absorption heat pump according to the present invention.
Figure 3 is a schematic view of the structure and flow of the type 3 double-effect gradual change absorption heat pump according to the present invention.
Figure 4 is a schematic view of the 4 th configuration and flow of the double-effect gradual change absorption heat pump according to the present invention.
In the figure, 1-a first generator, 2-a second generator, 3-an evaporator, 4-a first absorber, 5-a second absorber, 6-a condenser, 7-a first throttle valve, 8-a second throttle valve, 9-a first solution pump, 10-a second solution pump, 11-a third solution pump, 12-a first solution heat exchanger, 13-a second solution heat exchanger, 14-a third solution heat exchanger.
The specific implementation mode is as follows:
the invention is described in detail below with reference to the figures and examples.
The double-effect gradual change absorption heat pump shown in figure 1 is realized by the following steps:
structurally, the system mainly comprises a first generator 1, a second generator 2, an evaporator 3, a first absorber 4, a second absorber 5, a condenser 6, a first throttling valve 7, a second throttling valve 8, a first solution pump 9, a second solution pump 10, a first solution heat exchanger 12, a second solution heat exchanger 13 and a third solution heat exchanger 14; the first generator 1 is provided with a concentrated solution pipeline which is communicated with the second generator 2 through a third solution heat exchanger 14, the second generator 2 is provided with a concentrated solution pipeline which is communicated with the first absorber 4 through a first solution heat exchanger 12, the first absorber 4 is provided with a dilute solution pipeline which is communicated with the second absorber 5 through a first solution pump 9, the first solution heat exchanger 12, the third solution heat exchanger 14 and a second solution heat exchanger 13, the second absorber 5 is provided with a dilute solution pipeline which is communicated with the first generator 1 through a second solution pump 10 and the second solution heat exchanger 13, the first generator 1 is provided with a refrigerant steam pipeline which is communicated with the condenser 6 through a second generator 2 and a second throttling valve 8, the first generator 1 is also provided with a steam pipeline which is communicated with the second absorber 5, the second generator 2 is provided with a refrigerant steam channel which is communicated with the condenser 6, the condenser 6 is provided with a refrigerant liquid pipeline which is communicated with the evaporator 3 through a first throttling valve 7, the evaporator 3 is communicated with the first absorber 4 through a refrigerant steam channel, the first generator 1 is communicated with the outside through a driving heat medium pipeline, the evaporator 3 is further communicated with the outside through a waste heat medium pipeline, and the first absorber 4, the second absorber 5 and the condenser 6 are further respectively communicated with the outside through heated medium pipelines.
In the process, the dilute solution which drives the hot medium flow to heat and enters the first generator 1 releases high-temperature refrigerant steam to be provided for the second absorber 5 and the second generator 2 respectively, the high-temperature refrigerant steam from the first generator 1 releases heat to the dilute solution in the second generator 2 to be condensed into refrigerant liquid, the refrigerant liquid enters the condenser 6 after passing through the second throttle valve 8, the concentrated solution in the first generator 1 enters the second generator 2 through the third solution heat exchanger 14, the concentrated solution in the second generator 2 is heated and releases low-temperature refrigerant steam to be provided for the condenser 6, the concentrated solution in the second generator 2 enters the first absorber 4 through the first solution heat exchanger 12, absorbs the refrigerant steam from the evaporator 3 and releases heat to the heated medium, the dilute solution in the first absorber 4 enters the second absorber 5 through the first solution pump 9, the first solution heat exchanger 12, the third solution heat exchanger 14 and the second solution heat exchanger 13, The heat absorption type double-effect gradient absorption heat pump absorbs high-temperature refrigerant steam from the first generator 1 and releases heat to a heated medium, dilute solution of the second absorber 5 enters the first generator 1 through the second solution pump 10 and the second solution heat exchanger 13, the refrigerant steam in the condenser 6 releases heat to the heated medium to be changed into refrigerant liquid, the refrigerant liquid in the condenser 6 enters the evaporator 3 through the first throttle valve 7, the refrigerant liquid in the evaporator 3 is heated by a waste heat medium flowing through the refrigerant liquid in the evaporator 3 to release the refrigerant steam to be provided for the first absorber 4, and the double-effect gradient absorption heat pump is formed.
The double-effect gradual change absorption heat pump shown in fig. 2 is realized by the following steps:
structurally, the system mainly comprises a first generator 1, a second generator 2, an evaporator 3, a first absorber 4, a second absorber 5, a condenser 6, a first throttling valve 7, a second throttling valve 8, a first solution pump 9, a third solution pump 11, a first solution heat exchanger 12, a second solution heat exchanger 13 and a third solution heat exchanger 14; the first generator 1 is provided with a concentrated solution pipeline which is communicated with the first absorber 4 through a third solution heat exchanger 14 and a first solution heat exchanger 12, the first absorber 4 is provided with a dilute solution pipeline which is communicated with a second absorber 5 through a first solution pump 9, the first solution heat exchanger 12 and a second solution heat exchanger 13, the second absorber 5 is provided with a dilute solution pipeline which is communicated with a second generator 2 through the second solution heat exchanger 13, the second generator 2 is provided with a concentrated solution pipeline which is communicated with the first generator 1 through a third solution pump 11 and the third solution heat exchanger 14, the first generator 1 is provided with a refrigerant vapor pipeline which is communicated with a condenser 6 through a second generator 2 and a second throttling valve 8, the first generator 1 is also provided with a vapor pipeline which is communicated with the second absorber 5, the second generator 2 is provided with a refrigerant vapor channel which is communicated with the condenser 6, the condenser 6 is provided with a refrigerant liquid pipeline which is communicated with the evaporator 3 through a first throttling valve 7, the evaporator 3 is provided with a refrigerant steam channel communicated with the first absorber 4, the first generator 1 is provided with a driving heat medium pipeline communicated with the outside, the evaporator 3 is provided with a waste heat medium pipeline communicated with the outside, and the first absorber 4, the second absorber 5 and the condenser 6 are respectively provided with a heated medium pipeline communicated with the outside.
Secondly, in the process, the hot medium flow is driven to heat the concentrated solution entering the first generator 1 to release high-temperature refrigerant steam to be respectively provided for the second absorber 5 and the second generator 2, the high-temperature refrigerant steam from the first generator 1 releases heat to be condensed into refrigerant liquid in the second generator 2, the refrigerant liquid enters the condenser 6 after passing through the second throttle valve 8, the concentrated solution of the first generator 1 enters the first absorber 4 through the third solution heat exchanger 14 and the first solution heat exchanger 12 to absorb the refrigerant steam from the evaporator 3 and release heat to a heated medium, the dilute solution of the first absorber 4 enters the second absorber 5 through the first solution pump 9, the first solution heat exchanger 12 and the second solution heat exchanger 13 to absorb the high-temperature refrigerant steam from the first generator 1 and release heat to the heated medium, the dilute solution of the second absorber 5 enters the second generator 2 through the second solution heat exchanger 13, the dilute solution in the second generator 2 is heated by the high-temperature refrigerant steam from the first generator 1 and then releases the low-temperature refrigerant steam to be provided to the condenser 6, the concentrated solution in the second generator 2 enters the first generator 1 through the third solution pump 11 and the third solution heat exchanger 14, the refrigerant steam in the condenser 6 releases heat to a heated medium to become refrigerant liquid, the refrigerant liquid in the condenser 6 enters the evaporator 3 through the first throttle valve 7, the refrigerant liquid in the evaporator 3 is heated by a waste heat medium flowing through the refrigerant liquid to release the refrigerant steam to be provided to the first absorber 4, and the double-effect gradual change absorption heat pump is formed.
The double-effect gradual change absorption heat pump shown in fig. 3 is realized by the following steps:
structurally, the system mainly comprises a first generator 1, a second generator 2, an evaporator 3, a first absorber 4, a second absorber 5, a condenser 6, a first throttling valve 7, a second throttling valve 8, a first solution pump 9, a third solution pump 11, a first solution heat exchanger 12, a second solution heat exchanger 13 and a third solution heat exchanger 14; the first generator 1 is provided with a concentrated solution pipeline which is communicated with the second generator 2 through a third solution heat exchanger 14, the second generator 2 is provided with a concentrated solution pipeline which is communicated with a second absorber 5 through a third solution pump 11 and a second solution heat exchanger 13, the second absorber 5 is provided with a dilute solution pipeline which is communicated with a first absorber 4 through a first solution heat exchanger 12, the first absorber 4 is provided with a dilute solution pipeline which is communicated with the first generator 1 through a first solution pump 9, the first solution heat exchanger 12, the second solution heat exchanger 13 and the third solution heat exchanger 14, the first generator 1 is provided with a refrigerant vapor pipeline which is communicated with a condenser 6 through a second generator 2 and a second throttling valve 8, the first generator 1 is also provided with a vapor pipeline which is communicated with the second absorber 5, the second generator 2 is provided with a refrigerant vapor channel which is communicated with the condenser 6, the condenser 6 is provided with a refrigerant liquid pipeline which is communicated with an evaporator 3 through a first throttling valve 7, the evaporator 3 is provided with a refrigerant steam channel communicated with the first absorber 4, the first generator 1 is provided with a driving heat medium pipeline communicated with the outside, the evaporator 3 is provided with a waste heat medium pipeline communicated with the outside, and the first absorber 4, the second absorber 5 and the condenser 6 are respectively provided with a heated medium pipeline communicated with the outside.
In the process, the dilute solution which is heated by the driving hot medium flow and enters the first generator 1 releases high-temperature refrigerant steam to be provided for the second absorber 5 and the second generator 2 respectively, the high-temperature refrigerant steam from the first generator 1 releases heat, the dilute solution in the second generator 2 is condensed into refrigerant liquid, the refrigerant liquid enters the condenser 6 after passing through the second throttle valve 8, the concentrated solution in the first generator 1 enters the second generator 2 through the third solution heat exchanger 14, the concentrated solution in the second generator 2 is heated by the high-temperature refrigerant steam from the first generator 1 to release low-temperature refrigerant steam to be provided for the condenser 6, the concentrated solution in the second generator 2 enters the second absorber 5 through the third solution pump 11 and the second solution heat exchanger 13 to absorb the high-temperature refrigerant steam from the first generator 1 and release heat to a heated medium, the dilute solution in the second absorber 5 enters the first absorber 4 through the first solution heat exchanger 12, The dilute solution in the first absorber 4 enters the first generator 1 through the first solution pump 9, the first solution heat exchanger 12, the second solution heat exchanger 13 and the third solution heat exchanger 14, the refrigerant vapor in the condenser 6 releases heat to the heated medium to become refrigerant liquid, the refrigerant liquid in the condenser 6 enters the evaporator 3 through the first throttle valve 7, the refrigerant liquid in the evaporator 3 is heated by the residual heat medium flowing through the refrigerant liquid to release the refrigerant vapor to be provided for the first absorber 4, and the double-effect gradient absorption heat pump is formed.
The double-effect gradual change absorption heat pump shown in figure 4 is realized by the following steps:
structurally, the system mainly comprises a first generator 1, a second generator 2, an evaporator 3, a first absorber 4, a second absorber 5, a condenser 6, a first throttling valve 7, a second throttling valve 8, a first solution pump 9, a third solution pump 11, a first solution heat exchanger 12, a second solution heat exchanger 13 and a third solution heat exchanger 14; the first absorber 4 is provided with a dilute solution pipeline which is communicated with the second generator 2 through a first solution pump 9, a first solution heat exchanger 12 and a second solution heat exchanger 13 respectively and is communicated with the first generator 1 through a third solution heat exchanger 14, the first generator 1 is provided with a concentrated solution pipeline which is communicated with the second generator 2 through a third solution heat exchanger 14 and a concentrated solution pipeline of a third solution pump 11 and is communicated with the second absorber 5 through the second solution heat exchanger 13, the second absorber 5 is provided with a dilute solution pipeline which is communicated with the first absorber 4 through the first solution heat exchanger 12, the first generator 1 is provided with a refrigerant steam pipeline which is communicated with the condenser 6 through the second generator 2 and a second throttle valve 8, the first generator 1 is also provided with a refrigerant steam pipeline which is communicated with the second absorber 5, the second generator 2 is provided with a refrigerant steam channel which is communicated with the condenser 6, the condenser 6 is provided with a refrigerant liquid pipeline which is communicated with the evaporator 3 through a first throttle valve 7, the evaporator 3 is provided with a refrigerant steam channel communicated with the first absorber 4, the first generator 1 is provided with a driving heat medium pipeline communicated with the outside, the evaporator 3 is provided with a waste heat medium pipeline communicated with the outside, and the first absorber 4, the second absorber 5 and the condenser 6 are respectively provided with a heated medium pipeline communicated with the outside.
In the process, the dilute solution of the first absorber 4 is divided into two paths after passing through a first solution pump 9, a first solution heat exchanger 12 and a second solution heat exchanger 13, the first path of dilute solution enters a second generator 2, the other path of dilute solution passes through a third solution heat exchanger 14 and enters a first generator 1, the heat medium flow is driven to heat the dilute solution entering the first generator 1 to release high-temperature refrigerant steam to be respectively provided for the second absorber 5 and the second generator 2, the high-temperature refrigerant steam from the first generator 1 releases heat to the dilute solution in the second generator 2 to be condensed into refrigerant liquid, the refrigerant liquid passes through a second throttling valve 8 and then enters a condenser 6, the concentrated solution in the second generator 2 is heated by the high-temperature refrigerant steam from the first generator 1 to release low-temperature refrigerant steam to be provided for the condenser 6, the concentrated solution of the first generator 1 passes through the third solution heat exchanger 14 and then is merged with the concentrated solution from the second generator 2 after passing through a third solution pump 11, then the dilute solution of the second absorber 5 enters the first absorber 4 through the first solution heat exchanger 12, absorbs the refrigerant vapor from the evaporator 3 and releases heat to the heated medium, the refrigerant vapor in the condenser 6 releases heat to the heated medium to become refrigerant liquid, the refrigerant liquid in the condenser 6 enters the evaporator 3 through the first throttle valve 7, the refrigerant liquid in the evaporator 3 is heated by the residual heat medium flowing through the refrigerant liquid to release the refrigerant vapor to the first absorber 4, and the double-effect gradual change absorption heat pump is formed.
The effect that the technology of the invention can realize-the double-effect gradual change absorption heat pump provided by the invention has the following effects and advantages:
the simple heat pump process meets the heat supply requirements of users for higher temperature and higher efficiency.
The requirement of the heat pump unit on the waste heat temperature is lowered under the requirement of the same heat supply temperature, and the heat pump unit is wide in application range.
Thirdly, the heat pump performance index is gradually changed according to the requirement of the heat supply temperature, and the continuity and rationalization of the heat pump performance index are kept.
The heat pump unit is simple in structure, high in heat supply temperature, low in investment compared with similar heat supply systems and good in benefit.
In conclusion, the double-effect gradual-change absorption heat pump provided by the invention reduces the requirement of the heat pump unit on the waste heat temperature, improves the heat supply temperature of the double-effect unit, enriches the types and flows of the absorption heat pump, expands and enriches the application range of the absorption heat pump, and has good creativity, novelty and practicability.
Claims (4)
1. The double-effect gradient absorption heat pump mainly comprises a first generator (1), a second generator (2), an evaporator (3), a first absorber (4), a second absorber (5), a condenser (6), a first throttle valve (7), a second throttle valve (8), a first solution pump (9), a second solution pump (10), a first solution heat exchanger (12), a second solution heat exchanger (13) and a third solution heat exchanger (14); the first generator (1) is provided with a concentrated solution pipeline which is communicated with the second generator (2) through a third solution heat exchanger (14), the second generator (2) is provided with a concentrated solution pipeline which is communicated with the first absorber (4) through a first solution heat exchanger (12), the first absorber (4) is provided with a dilute solution pipeline which is communicated with the second absorber (5) through a first solution pump (9), the first solution heat exchanger (12), the third solution heat exchanger (14) and a second solution heat exchanger (13), the second absorber (5) is provided with a dilute solution pipeline which is communicated with the first generator (1) through a second solution pump (10) and the second solution heat exchanger (13), the first generator (1) is provided with a refrigerant steam pipeline which is communicated with the condenser (6) through the second generator (2) and a second throttle valve (8), the first generator (1) is also provided with the refrigerant steam pipeline which is communicated with the second absorber (5), the second generator (2) is communicated with the condenser (6) through a refrigerant steam channel, the condenser (6) is communicated with the evaporator (3) through a refrigerant liquid pipeline through a first throttling valve (7), the evaporator (3) is communicated with the first absorber (4) through a refrigerant steam channel, the first generator (1) is communicated with the outside through a driving heat medium pipeline, the evaporator (3) is further communicated with the outside through a waste heat medium pipeline, and the first absorber (4), the second absorber (5) and the condenser (6) are further communicated with the outside through heated medium pipelines respectively to form the double-effect gradient absorption heat pump.
2. The double-effect gradient absorption heat pump mainly comprises a first generator (1), a second generator (2), an evaporator (3), a first absorber (4), a second absorber (5), a condenser (6), a first throttling valve (7), a second throttling valve (8), a first solution pump (9), a third solution pump (11), a first solution heat exchanger (12), a second solution heat exchanger (13) and a third solution heat exchanger (14); the first generator (1) is provided with a concentrated solution pipeline which is communicated with the first absorber (4) through a third solution heat exchanger (14) and a first solution heat exchanger (12), the first absorber (4) is provided with a dilute solution pipeline which is communicated with the second absorber (5) through a first solution pump (9), the first solution heat exchanger (12) and a second solution heat exchanger (13), the second absorber (5) is provided with a dilute solution pipeline which is communicated with the second generator (2) through the second solution heat exchanger (13), the second generator (2) is provided with a concentrated solution pipeline which is communicated with the first generator (1) through a third solution pump (11) and the third solution heat exchanger (14), the first generator (1) is provided with a refrigerant vapor pipeline which is communicated with the condenser (6) through the second generator (2) and a second throttle valve (8), and the first generator (1) is also provided with the second absorber (5), the second generator (2) is communicated with the condenser (6) through a refrigerant steam channel, the condenser (6) is communicated with the evaporator (3) through a refrigerant liquid pipeline through a first throttling valve (7), the evaporator (3) is communicated with the first absorber (4) through a refrigerant steam channel, the first generator (1) is communicated with the outside through a driving heat medium pipeline, the evaporator (3) is communicated with the outside through a waste heat medium pipeline, and the first absorber (4), the second absorber (5) and the condenser (6) are respectively communicated with the outside through heated medium pipelines to form the double-effect gradient absorption heat pump.
3. The double-effect gradient absorption heat pump mainly comprises a first generator (1), a second generator (2), an evaporator (3), a first absorber (4), a second absorber (5), a condenser (6), a first throttling valve (7), a second throttling valve (8), a first solution pump (9), a third solution pump (11), a first solution heat exchanger (12), a second solution heat exchanger (13) and a third solution heat exchanger (14); the first generator (1) is provided with a concentrated solution pipeline which is communicated with the second generator (2) through a third solution heat exchanger (14), the second generator (2) is provided with a concentrated solution pipeline which is communicated with the second absorber (5) through a third solution pump (11) and a second solution heat exchanger (13), the second absorber (5) is provided with a dilute solution pipeline which is communicated with the first absorber (4) through a first solution heat exchanger (12), the first absorber (4) is provided with a dilute solution pipeline which is communicated with the first generator (1) through a first solution pump (9), the first solution heat exchanger (12), the second solution heat exchanger (13) and the third solution heat exchanger (14), the first generator (1) is provided with a refrigerant vapor pipeline which is communicated with the condenser (6) through the second generator (2) and a second throttle valve (8), the first generator (1) is also provided with a refrigerant vapor pipeline which is communicated with the second absorber (5), the second generator (2) is communicated with the condenser (6) through a refrigerant steam channel, the condenser (6) is communicated with the evaporator (3) through a refrigerant liquid pipeline through a first throttling valve (7), the evaporator (3) is communicated with the first absorber (4) through a refrigerant steam channel, the first generator (1) is communicated with the outside through a driving heat medium pipeline, the evaporator (3) is communicated with the outside through a waste heat medium pipeline, and the first absorber (4), the second absorber (5) and the condenser (6) are respectively communicated with the outside through heated medium pipelines to form the double-effect gradient absorption heat pump.
4. The double-effect gradient absorption heat pump mainly comprises a first generator (1), a second generator (2), an evaporator (3), a first absorber (4), a second absorber (5), a condenser (6), a first throttling valve (7), a second throttling valve (8), a first solution pump (9), a third solution pump (11), a first solution heat exchanger (12), a second solution heat exchanger (13) and a third solution heat exchanger (14); the first absorber (4) is provided with a dilute solution pipeline which is communicated with the second generator (2) through a first solution pump (9), a first solution heat exchanger (12) and a second solution heat exchanger (13) and is communicated with the first generator (1) through a third solution heat exchanger (14), the first generator (1) is provided with a concentrated solution pipeline which is communicated with the second generator (2) through the third solution heat exchanger (14) and a concentrated solution pipeline of a third solution pump (11) and is communicated with the second absorber (5) through the second solution heat exchanger (13), the second absorber (5) is provided with a dilute solution pipeline which is communicated with the first absorber (4) through the first solution heat exchanger (12), the first generator (1) is provided with a refrigerant steam pipeline which is communicated with the condenser (6) through the second generator (2) and a second throttling valve (8), the first generator (1) is also provided with the refrigerant steam pipeline which is communicated with the second absorber (5), the second generator (2) is communicated with the condenser (6) through a refrigerant steam channel, the condenser (6) is communicated with the evaporator (3) through a refrigerant liquid pipeline through a first throttling valve (7), the evaporator (3) is communicated with the first absorber (4) through a refrigerant steam channel, the first generator (1) is communicated with the outside through a driving heat medium pipeline, the evaporator (3) is communicated with the outside through a waste heat medium pipeline, and the first absorber (4), the second absorber (5) and the condenser (6) are respectively communicated with the outside through heated medium pipelines to form the double-effect gradient absorption heat pump.
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