Jet-absorption heat pump

Abstract

The invention provides a jet-absorption heat pump, and belongs to the technical field of refrigeration and heat pumps. The absorber is provided with a dilute solution pipeline which is communicated with the generator through a solution pump and a solution heat exchanger, the generator is further provided with a concentrated solution pipeline which is communicated with the absorber through the solution heat exchanger, the generator is further provided with a refrigerant steam channel which is communicated with the condenser, and the condenser is further provided with a refrigerant liquid pipeline which is communicated with the evaporator through a throttling valve. The generator communicates with a high-pressure steam inlet of the ejector through a refrigerant steam channel, the evaporator communicates with a low-pressure steam inlet of the ejector through a refrigerant steam channel, the ejector communicates with the absorber through a medium-pressure refrigerant steam channel, and the generator communicates with the outside through a high-temperature heat medium channel. The absorber and the condenser are communicated with the outside through heated medium channels respectively, the evaporator is communicated with the outside through a low-temperature heat medium channel, and the jet-absorption heat pump is formed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of refrigeration and heat pump technology. BACKGROUND

[0002] People need to use energy to achieve refrigeration and efficient heating, in which the use of heat energy for refrigeration / heat is a conventional technical means. In practical applications, the working parameters, performance index and manufacturing cost of heat pump need to be considered first and emphatically.

[0003] The ejector itself is a kind of pressure boosting component, which has the advantages of simple structure, reliable operation, low investment and long service life; more importantly, the ejector can effectively adapt to high-temperature heat load, which is beneficial to improve the rationalization of the driving heat load input link and expand the utilization range of heat pump technology for high-temperature heat load.

[0004] The heat energy driven absorption refrigeration / heat pump technology also has the advantages of low manufacturing cost and can directly use heat energy as driving energy; however, due to the influence of the properties of the solution and the refrigerant medium, its working range and application field are greatly limited.

[0005] Starting from the principle of simple, active and efficient use of heat energy for refrigeration / heat, the present application proposes an ejector-absorption heat pump with reasonable process, simple structure, low manufacturing cost, wide working parameter range, technical integration and reasonable performance index. SUMMARY

[0006] The main purpose of the present application is to provide an ejector-absorption heat pump, and the specific invention contents are described as follows:

[0007] 1. The ejector-absorption heat pump is mainly composed of an absorber, a solution pump, a solution heat exchanger, a generator, a condenser, a throttling valve, an evaporator and an ejector; the absorber has a dilute solution pipeline connected with the generator through the solution pump and the solution heat exchanger, the generator also has a concentrated solution pipeline connected with the absorber through the solution heat exchanger, the generator also has a refrigerant vapor passage connected with the condenser, the condenser also has a refrigerant liquid pipeline connected with the evaporator through the throttling valve, the generator also has a refrigerant vapor passage connected with the high-pressure steam inlet of the ejector, the evaporator also has a refrigerant vapor passage connected with the low-pressure steam inlet of the ejector, the ejector also has a medium-pressure refrigerant vapor passage connected with the absorber, the generator also has a high-temperature heat medium passage connected with the outside, the absorber and the condenser also have heated medium passages connected with the outside respectively, and the evaporator also has a low-temperature heat medium passage connected with the outside, forming an ejector-absorption heat pump.

[0008] 2. The ejector-absorption heat pump of claim 1, wherein a second generator, a second throttling valve, a second solution pump and a second solution heat exchanger are added, the dilute solution line of the absorber is connected to the second generator through the second solution pump and the second solution heat exchanger, the second generator has a concentrated solution line connected to the absorber through the second solution heat exchanger, the refrigerant vapor passage of the generator is connected to the second generator, the second generator has a refrigerant liquid line connected to the condenser or the evaporator through the second throttling valve, the second generator has a refrigerant vapor passage connected to the condenser, and the second generator has a refrigerant vapor passage connected to the high pressure steam inlet of the ejector, thereby forming the ejector-absorption heat pump.

[0009] 3. The ejector-absorption heat pump of claim 1, wherein a second generator, a second throttling valve and a second solution heat exchanger are added, the dilute solution line of the absorber is connected to the second generator through the solution pump and the second solution heat exchanger, the concentrated solution line of the generator is connected to the second generator through the second solution heat exchanger, the second generator has a concentrated solution line connected to the absorber through the solution heat exchanger, the refrigerant vapor passage of the generator is connected to the second generator, the second generator has a refrigerant liquid line connected to the condenser or the evaporator through the second throttling valve, the second generator has a refrigerant vapor passage connected to the condenser, and the second generator has a refrigerant vapor passage connected to the high pressure steam inlet of the ejector, thereby forming the ejector-absorption heat pump.

[0010] 4. The ejector-absorption heat pump of claim 1, wherein a second generator, a second throttling valve, a second solution pump and a second solution heat exchanger are added, the dilute solution line of the absorber is connected to the second generator through the solution pump and the second solution heat exchanger, the second generator has a concentrated solution line connected to the generator through the second solution pump and the second solution heat exchanger, the concentrated solution line of the generator is connected to the second generator through the second solution heat exchanger and the solution heat exchanger, the refrigerant vapor passage of the generator is connected to the second generator, the second generator has a refrigerant liquid line connected to the condenser or the evaporator through the second throttling valve, the second generator has a refrigerant vapor passage connected to the condenser, and the second generator has a refrigerant vapor passage connected to the high pressure steam inlet of the ejector, thereby forming the ejector-absorption heat pump.

[0011] 5. The ejector-absorption heat pump according to claim 1, wherein a second generator, a second solution pump, a second solution heat exchanger and a second absorber are added, the dilute solution line of the absorber is connected to the generator through the solution pump and the solution heat exchanger, and is adjusted to be connected to the second absorber through the solution pump and the solution heat exchanger, the second absorber further has a dilute solution line connected to the generator through the second solution pump and the second solution heat exchanger, the concentrated solution line of the generator is connected to the absorber through the solution heat exchanger, and is adjusted to be connected to the second generator through the second solution heat exchanger, the second generator further has a refrigerant vapor passage connected to the second absorber, the second generator further has a high-temperature heat medium passage connected to the outside, and the second absorber further has a heated medium passage connected to the outside, thereby forming the ejector-absorption heat pump.

[0012] 6. The ejector-absorption heat pump according to claim 5, wherein a third generator, a second throttling valve, a third solution pump and a third solution heat exchanger are added, the dilute solution line of the second absorber is connected to the third generator through the third solution pump and the third solution heat exchanger, the third generator further has a concentrated solution line connected to the second generator through the third solution heat exchanger, the refrigerant vapor passage of the generator is connected to the third generator, and the third generator further has a refrigerant liquid line connected to the condenser or the evaporator through the second throttling valve, a refrigerant vapor passage connected to the condenser and a refrigerant vapor passage connected to the high-pressure steam inlet of the ejector, thereby forming the ejector-absorption heat pump.

[0013] 7. The ejector-absorption heat pump according to claim 5, wherein a third generator, a second throttling valve and a third solution heat exchanger are added, the dilute solution line of the second absorber is connected to the generator through the second solution pump, the second solution heat exchanger and the third solution heat exchanger, the concentrated solution line of the generator is connected to the third generator through the third solution heat exchanger, the third generator further has a concentrated solution line connected to the second generator through the second solution heat exchanger, the refrigerant vapor passage of the generator is connected to the third generator, and the third generator further has a refrigerant liquid line connected to the condenser or the evaporator through the second throttling valve, a refrigerant vapor passage connected to the condenser and a refrigerant vapor passage connected to the high-pressure steam inlet of the ejector, thereby forming the ejector-absorption heat pump.

[0014] 8. The ejector-absorption heat pump as claimed in claim 5, wherein a third generator, a second throttling valve, a third solution pump and a third solution heat exchanger are added, the second-absorber-dilute-solution line connected to the generator via the second solution pump and the second solution heat exchanger is adjusted to be connected to the third generator via the second solution pump and the second solution heat exchanger, the third generator further has a concentrated-solution line connected to the generator via the third solution pump and the third solution heat exchanger, the generator-concentrated-solution line connected to the second generator via the second solution heat exchanger is adjusted to be connected to the second generator via the third solution heat exchanger and the second solution heat exchanger, the generator-refrigerant-vapor passage connected to the condenser and the ejector is adjusted to be connected to the third generator, the third generator further has a refrigerant-liquid line connected to the condenser or the evaporator via the second throttling valve, the third generator further has a refrigerant-vapor passage connected to the condenser, and the third generator further has a refrigerant-vapor passage connected to the high-pressure-vapor inlet of the ejector, thereby forming the ejector-absorption heat pump.

[0015] 9. The ejector-absorption heat pump as claimed in claim 1, wherein a second generator, a second solution pump, a second solution heat exchanger and a second absorber are added, the generator-refrigerant-vapor passage connected to the condenser and the ejector is adjusted to be connected to the second absorber, the second absorber further has a dilute-solution line connected to the second generator via the second solution pump and the second solution heat exchanger, the second generator further has a concentrated-solution line connected to the second absorber via the second solution heat exchanger, the second generator further has a refrigerant-vapor passage connected to the condenser, the second generator further has a refrigerant-vapor passage connected to the high-pressure-vapor inlet of the ejector, the second generator further has a high-temperature-heat-medium passage connected to the outside, and the second absorber further has a heated medium passage connected to the outside, thereby forming the ejector-absorption heat pump.

[0016] 10. A jet-absorption heat pump, mainly composed of an absorber, a solution pump, a solution heat exchanger, a generator, a condenser, a throttle valve, an evaporator, an ejector, a second generator, a second throttle valve, a second solution pump, a second absorber, a second condenser, a solution throttle valve, a second solution throttle valve and a flash chamber; the absorber has a dilute solution pipeline connected to the second absorber through the solution pump and the solution heat exchanger, the second absorber has a dilute solution pipeline connected to the second generator through the solution throttle valve, the second generator has a concentrated solution pipeline connected to the generator through the second solution pump, the generator has a concentrated solution pipeline connected to the flash chamber through the second solution throttle valve and the second absorber, the flash chamber has a concentrated solution pipeline connected to the absorber through the solution heat exchanger, the generator has a refrigerant vapor passage connected to the second absorber, the second generator has a refrigerant vapor passage connected to the second condenser, the second condenser has a refrigerant liquid pipeline connected to the condenser or the evaporator through the second throttle valve, the flash chamber has a refrigerant vapor passage connected to the condenser, the condenser has a refrigerant liquid pipeline connected to the evaporator through the throttle valve, the second generator or the flash chamber has a refrigerant vapor passage connected to the high-pressure steam inlet of the ejector, the evaporator has a refrigerant vapor passage connected to the low-pressure steam inlet of the ejector, the ejector has a medium-pressure refrigerant vapor passage connected to the absorber, the generator and the second generator each have a high-temperature heat medium passage connected to the outside, the absorber, the condenser and the second condenser each have a heated medium passage connected to the outside, the evaporator has a low-temperature heat medium passage connected to the outside, forming a jet-absorption heat pump.

[0017] 11. A jet-absorption heat pump, which is the jet-absorption heat pump described in item 10, canceling the second condenser and the second throttle valve, canceling the heated medium passage of the second condenser connected to the outside, canceling the refrigerant liquid pipeline of the second condenser connected to the condenser or the evaporator through the second throttle valve, and adjusting the refrigerant vapor passage of the second generator connected to the second condenser to the refrigerant vapor passage of the second generator connected to the condenser, forming a jet-absorption heat pump.

[0018] 12. A jet-absorption heat pump, which is any one of the jet-absorption heat pumps described in items 2-4, the second generator being additionally provided with a high-temperature heat medium passage connected to the outside, forming a jet-absorption heat pump.

[0019] 13. A jet-absorption heat pump, which is any one of the jet-absorption heat pumps described in items 6-8, the third generator being additionally provided with a high-temperature heat medium passage connected to the outside, forming a jet-absorption heat pump.

[0020] 14. The ejector-absorption heat pump as set forth in claim 1, wherein a second generator, a second throttling valve, a second solution heat exchanger and a second condenser are added, the connection of the weak solution line of the absorber to the generator via the solution pump and the solution heat exchanger is adjusted to the connection of the weak solution line of the absorber to the second generator via the solution pump, the solution heat exchanger and the second solution heat exchanger, the second generator further has a connection of the strong solution line to the generator via the second solution heat exchanger, the second generator further has a connection of the refrigerant vapor passage to the second condenser, the second condenser further has a connection of the refrigerant liquid line to the condenser or the evaporator via the second throttling valve, the second generator further has a connection of the high temperature heat medium passage to the outside, and the second condenser further has a connection of the heated medium passage to the outside, thereby forming the ejector-absorption heat pump; and wherein the connection of the refrigerant vapor passage of the generator to the high pressure steam inlet of the ejector is adjusted to the connection of the refrigerant vapor passage of the second generator to the high pressure steam inlet of the ejector.

[0021] 15. The ejector-absorption heat pump as set forth in claim 1, wherein a second generator, a second throttling valve, a second solution pump, a second solution heat exchanger and a second condenser are added, the connection of the strong solution line of the generator to the absorber via the solution heat exchanger is adjusted to the connection of the strong solution line of the generator to the second generator via the second solution pump and the second solution heat exchanger, the second generator further has a connection of the strong solution line to the absorber via the second solution heat exchanger and the solution heat exchanger, the second generator further has a connection of the refrigerant vapor passage to the second condenser, the second condenser further has a connection of the refrigerant liquid line to the condenser or the evaporator via the second throttling valve, the second generator further has a connection of the high temperature heat medium passage to the outside, and the second condenser further has a connection of the heated medium passage to the outside, thereby forming the ejector-absorption heat pump; and wherein the connection of the refrigerant vapor passage of the generator to the high pressure steam inlet of the ejector is adjusted to the connection of the refrigerant vapor passage of the second generator to the high pressure steam inlet of the ejector.

[0022] 16. The ejector-absorption heat pump as claimed in claim 1, wherein a second throttling valve, a second solution heat exchanger, a second absorber, a second evaporator and a second ejector are added, the connection of the weak solution line of the absorber to the generator via the solution pump and the solution heat exchanger is changed to the connection of the weak solution line of the absorber to the generator via the solution pump, the solution heat exchanger and the second solution heat exchanger, the connection of the strong solution line of the generator to the absorber via the solution heat exchanger is changed to the connection of the strong solution line of the generator to the second absorber via the second solution heat exchanger, the second absorber further has a weak solution line connected to the absorber via the solution heat exchanger, the condenser or the evaporator further has a refrigerant liquid line connected to the second evaporator via the second throttling valve, the second evaporator further has a refrigerant vapor passage connected to the low pressure steam inlet of the second ejector, the generator further has a refrigerant vapor passage connected to the high pressure steam inlet of the second ejector, the second ejector further has a medium pressure refrigerant vapor passage connected to the second absorber, the second absorber further has a heated medium passage connected to the outside, and the second evaporator further has a low temperature heat medium passage connected to the outside, thereby forming the ejector-absorption heat pump.

[0023] 17. The ejector-absorption heat pump as claimed in claim 1, wherein a second throttling valve, a second solution pump, a second solution heat exchanger, a second absorber, a second evaporator and a second ejector are added, the connection of the weak solution line of the absorber to the generator via the solution pump and the solution heat exchanger is changed to the connection of the weak solution line of the absorber to the second absorber via the solution pump and the solution heat exchanger, the second absorber further has a weak solution line connected to the generator via the second solution pump and the second solution heat exchanger, the connection of the strong solution line of the generator to the absorber via the solution heat exchanger is changed to the connection of the strong solution line of the generator to the absorber via the second solution heat exchanger and the solution heat exchanger, the condenser or the evaporator further has a refrigerant liquid line connected to the second evaporator via the second throttling valve, the second evaporator further has a refrigerant vapor passage connected to the low pressure steam inlet of the second ejector, the generator further has a refrigerant vapor passage connected to the high pressure steam inlet of the second ejector, the second ejector further has a medium pressure refrigerant vapor passage connected to the second absorber, the second absorber further has a heated medium passage connected to the outside, and the second evaporator further has a low temperature heat medium passage connected to the outside, thereby forming the ejector-absorption heat pump.

[0024] 18. The ejector-absorption heat pump as claimed in any one of claims 2 to 4 and 12, wherein the refrigerant vapor passage of the second generator connected to the high pressure steam inlet of the ejector is removed, and the generator further has a refrigerant vapor passage connected to the high pressure steam inlet of the ejector, thereby forming the ejector-absorption heat pump.

[0025] 19. The ejector-absorption heat pump is in any one of the ejector-absorption heat pumps described in items 6-8, 13, canceling the third generator refrigerant steam passage connected to the high-pressure steam inlet of the ejector, and adding a refrigerant steam passage connected to the high-pressure steam inlet of the ejector to the generator, forming an ejector-absorption heat pump.

[0026] 20. The ejector-absorption heat pump is in any one of the ejector-absorption heat pumps described in items 1, 5, 9, 11, adding a nozzle and replacing the throttle valve, forming an ejector-absorption heat pump.

[0027] 21. The ejector-absorption heat pump is in any one of the ejector-absorption heat pumps described in items 2-4, 6-8, 10, 12-19, adding a nozzle and replacing the throttle valve, adding a second nozzle and replacing the second throttle valve, forming an ejector-absorption heat pump. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the first structure and flow diagram of the ejector-absorption heat pump provided according to the present application.

[0029] Figure 2 is the second structure and flow diagram of the ejector-absorption heat pump provided according to the present application.

[0030] Figure 3 is the third structure and flow diagram of the ejector-absorption heat pump provided according to the present application.

[0031] Figure 4 is the fourth structure and flow diagram of the ejector-absorption heat pump provided according to the present application.

[0032] Figure 5 is the fifth structure and flow diagram of the ejector-absorption heat pump provided according to the present application.

[0033] Figure 6 is the sixth structure and flow diagram of the ejector-absorption heat pump provided according to the present application.

[0034] Figure 7 is the seventh structure and flow diagram of the ejector-absorption heat pump provided according to the present application.

[0035] Figure 8 is the eighth structure and flow diagram of the ejector-absorption heat pump provided according to the present application.

[0036] Figure 9 is the ninth structure and flow diagram of the ejector-absorption heat pump provided according to the present application.

[0037] Figure 10is the tenth structure and flow diagram of the ejector-absorption heat pump according to the present application.

[0038] Figure 11 is the eleventh structure and flow diagram of the ejector-absorption heat pump according to the present application.

[0039] Figure 12 is the twelfth structure and flow diagram of the ejector-absorption heat pump according to the present application.

[0040] Figure 13 is the thirteenth structure and flow diagram of the ejector-absorption heat pump according to the present application.

[0041] Figure 14 is the fourteenth structure and flow diagram of the ejector-absorption heat pump according to the present application.

[0042] Figure 15 is the fifteenth structure and flow diagram of the ejector-absorption heat pump according to the present application.

[0043] Figure 16 is the sixteenth structure and flow diagram of the ejector-absorption heat pump according to the present application.

[0044] Figure 17 is the seventeenth structure and flow diagram of the ejector-absorption heat pump according to the present application.

[0045] Figure 18 is the eighteenth structure and flow diagram of the ejector-absorption heat pump according to the present application.

[0046] In the figure, 1-absorber, 2-solution pump, 3-solution heat exchanger, 4-generator, 5-condenser, 6-throttling valve, 7-evaporator, 8-ejector, 9-second generator, 10-second throttling valve, 11-second solution pump, 12-second solution heat exchanger, 13-second absorber, 14-third generator, 15-third solution pump, 16-third solution heat exchanger, 17-second condenser, 18-solution throttling valve, 19-second solution pump throttling valve, 20-steam separator, 21-second evaporator, 22-second ejector, A-ejector nozzle, B-second ejector nozzle, C-circulating pump. DETAILED DESCRIPTION

[0047] First of all, it should be noted that the structure and flow are not repeated unnecessarily; the flow is not described for obviousness. The present application will be described in detail below with reference to the accompanying drawings and examples.

[0048] Figure 1 The ejector-absorption heat pump shown is realized as follows:

[0049] (1) Structurally, it is mainly composed of an absorber, a solution pump, a solution heat exchanger, a generator, a condenser, a throttle valve, an evaporator and an ejector; the absorber 1 has a dilute solution pipeline connected with the generator 4 through the solution pump 2 and the solution heat exchanger 3, the generator 4 also has a concentrated solution pipeline connected with the absorber 1 through the solution heat exchanger 3, the generator 4 also has a refrigerant vapor channel connected with the condenser 5, the condenser 5 also has a refrigerant liquid pipeline connected with the evaporator 7 through the throttle valve 6, the generator 4 also has a refrigerant vapor channel connected with the high-pressure steam inlet of the ejector 8, the evaporator 7 also has a refrigerant vapor channel connected with the low-pressure steam inlet of the ejector 8, the ejector 8 also has a medium-pressure refrigerant vapor channel connected with the absorber 1, the generator 4 also has a high-temperature heat medium channel connected with the outside, the absorber 1 and the condenser 5 also have heat medium channels connected with the outside respectively, and the evaporator 7 also has a low-temperature heat medium channel connected with the outside.

[0050] (2) In terms of process, the dilute solution of the absorber 1 enters the generator 4 through the solution pump 2 and the solution heat exchanger 3, the high-temperature heat medium flows through the generator 4, heats the solution entering it to release refrigerant vapor and provides it to the condenser 5 and the ejector 8 respectively, the concentrated solution of the generator 4 enters the absorber 1 through the solution heat exchanger 3, absorbs refrigerant vapor and releases heat to the heated medium; the refrigerant vapor in the condenser 5 releases heat to the heated medium to become condensed liquid, the condensed liquid of the condenser 5 flows through the throttle valve 6 to throttle into the evaporator 7 to absorb heat to become refrigerant vapor, part of the vapor released by the generator 4 enters the ejector 8, flows through the nozzle to reduce pressure and increase speed and forms low pressure, the refrigerant vapor produced by the evaporator 7 is sucked into the low-pressure area of the ejector 8, and the two-way vapor mixes and then flows through the diffuser to reduce speed and increase pressure to form medium-pressure vapor and provide it to the absorber 1; the high-temperature heat medium provides driving heat load by passing through the generator 4, the heated medium obtains medium-temperature heat load by passing through the absorber 1 and the condenser 5, and the low-temperature heat medium provides low-temperature heat load by passing through the evaporator 7, forming an ejector-absorption heat pump.

[0051] Figure 2 The ejector-absorption heat pump shown is realized as follows:

[0052] (1) Structurally, in the Figure 1The ejector-absorption heat pump shown in the figure is realized as follows:

[0053] (2) In the process, compared with the ejector-absorption heat pump shown in the figure, the difference is that the refrigerant vapor generated by the generator 4 provides driving heat medium for the second generator 9, part of the dilute solution of the absorber 1 enters the second generator 9 through the second solution pump 11 and the second solution heat exchanger 12, the refrigerant vapor flows through the second generator 9, heats the solution entering it, releases refrigerant vapor and is divided into two paths-the first path enters the condenser 5 to release heat and condense, and the second path enters the ejector 8 as working steam, the concentrated solution of the second generator 9 enters the absorber 1 through the second solution heat exchanger 12, and the refrigerant vapor flowing through the second generator 9 releases heat to become refrigerant liquid, then throttles into the condenser 5 through the second throttle valve 10, forming an ejector-absorption heat pump. Figure 1

[0054] Figure 3 The ejector-absorption heat pump shown in the figure is realized as follows:

[0055] (1) In structure, in the ejector-absorption heat pump shown in the figure, a second generator, a second throttle valve and a second solution heat exchanger are added, the dilute solution pipeline of the absorber 1 is connected to the generator 4 through the solution pump 2 and the solution heat exchanger 3, which is adjusted to the dilute solution pipeline of the absorber 1 being connected to the generator 4 through the solution pump 2, the solution heat exchanger 3 and the second solution heat exchanger 12, the concentrated solution pipeline of the generator 4 is connected to the absorber 1 through the solution heat exchanger 3, which is adjusted to the concentrated solution pipeline of the generator 4 being connected to the second generator 9 through the second solution heat exchanger 12, the second generator 9 has a concentrated solution pipeline connected to the absorber 1 through the solution heat exchanger 3, the refrigerant vapor passage of the generator 4 is connected to the second generator 9, and the second generator 9 has a refrigerant liquid pipeline connected to the condenser 5 through the second throttle valve 10, a refrigerant vapor passage connected to the condenser 5, and a refrigerant vapor passage connected to the high-pressure steam inlet of the ejector 8. Figure 1 (2) In the process, compared with the ejector-absorption heat pump shown in the figure, the difference is that the refrigerant vapor generated by the generator 4 provides driving heat medium for the second generator 9, part of the dilute solution of the absorber 1 enters the second generator 9 through the second solution pump 11 and the second solution heat exchanger 12, the refrigerant vapor flows through the second generator 9, heats the solution entering it, releases refrigerant vapor and is divided into two paths-the first path enters the condenser 5 to release heat and condense, and the second path enters the ejector 8 as working steam, the concentrated solution of the second generator 9 enters the absorber 1 through the second solution heat exchanger 12, and the refrigerant vapor flowing through the second generator 9 releases heat to become refrigerant liquid, then throttles into the condenser 5 through the second throttle valve 10, forming an ejector-absorption heat pump.

[0056] Figure 1 ​​The difference between the shown ejector-absorption heat pump and the absorption heat pump is that the refrigerant vapor generated by the generator 4 is used as the driving heat medium for the second generator 9, the dilute solution of the absorber 1 is led into the generator 4 through the solution pump 2, the solution heat exchanger 3 and the second solution heat exchanger 12, the concentrated solution of the generator 4 is led into the second generator 9 through the second solution heat exchanger 12, the refrigerant vapor flows through the second generator 9, releases the refrigerant vapor by heating the solution led into it and is divided into two paths, the first path is led into the condenser 5 to release heat and condense and the second path is led into the ejector 8 as working vapor, the concentrated solution of the second generator 9 is led into the absorber 1 through the solution heat exchanger 3, the refrigerant vapor flowing through the second generator 9 is throttled into the condenser 5 through the second throttle valve 10 after releasing heat to become refrigerant liquid, forming the ejector-absorption heat pump.

[0057] Figure 4 The shown ejector-absorption heat pump is realized in the following way:

[0058] (1) In structure, in the shown absorption heat pump, Figure 1 In the shown ejector-absorption heat pump, the second generator, the second throttle valve, the second solution pump and the second solution heat exchanger are added, the dilute solution pipeline of the absorber 1 is adjusted to be communicated with the second generator 9 through the solution pump 2 and the solution heat exchanger 3 from being communicated with the generator 4 through the solution pump 2 and the solution heat exchanger 3, the second generator 9 has the concentrated solution pipeline communicated with the generator 4 through the second solution pump 11 and the second solution heat exchanger 12, the concentrated solution pipeline of the generator 4 is adjusted to be communicated with the absorber 1 through the second solution heat exchanger 12 and the solution heat exchanger 3 from being communicated with the absorber 1 through the solution heat exchanger 3, the refrigerant vapor passage of the generator 4 is adjusted to be communicated with the second generator 9 and then the refrigerant liquid pipeline of the second generator 9 is communicated with the condenser 5 through the second throttle valve 10, the refrigerant vapor passage of the second generator 9 is communicated with the condenser 5 and the high pressure vapor inlet of the ejector 8.

[0059] (2) In flow, compared with the shown absorption heat pump, Figure 1Compared with the shown ejector-absorption heat pump, the difference is that the refrigerant steam generated by the generator 4 is provided to the second generator 9 as a driving heat medium, the dilute solution of the absorber 1 enters the second generator 9 through the solution pump 2 and the solution heat exchanger 3, the refrigerant steam flows through the second generator 9, heats the solution entering it to release the refrigerant steam and is divided into two paths, the first path enters the condenser 5 to release heat and condense, and the second path enters the ejector 8 as working steam, the concentrated solution of the second generator 9 enters the generator 4 through the second solution pump 11 and the second solution heat exchanger 12, the concentrated solution of the generator 4 enters the absorber 1 through the second solution heat exchanger 12 and the solution heat exchanger 3, the refrigerant steam flowing through the second generator 9 releases heat to become refrigerant liquid and then enters the condenser 5 through the second throttling valve 10 after throttling, forming an ejector-absorption heat pump.

[0060] Figure 5 The shown ejector-absorption heat pump is realized as follows:

[0061] (1) In terms of structure, in the shown ejector-absorption heat pump, Figure 1 In the shown ejector-absorption heat pump, the second generator, the second solution pump, the second solution heat exchanger and the second absorber are added, the dilute solution pipeline of the absorber 1 is adjusted to be communicated with the second absorber 13 through the solution pump 2 and the solution heat exchanger 3, the second absorber 13 has a dilute solution pipeline communicated with the generator 4 through the second solution pump 11 and the second solution heat exchanger 12, the concentrated solution pipeline of the generator 4 is adjusted to be communicated with the second generator 9 through the second solution heat exchanger 12, the second generator 9 has a concentrated solution pipeline communicated with the absorber 1 through the solution heat exchanger 3, the second generator 9 has a refrigerant steam passage communicated with the second absorber 13, the second generator 9 has a high-temperature heat medium passage communicated with the outside, and the second absorber 13 has a heated medium passage communicated with the outside.

[0062] (2) In terms of process, compared with the shown ejector-absorption heat pump, Figure 1 In the shown ejector-absorption heat pump, the dilute solution of the absorber 1 enters the second absorber 13 through the solution pump 2 and the solution heat exchanger 3, absorbs the refrigerant steam and releases heat to the heated medium, the dilute solution of the second absorber 13 enters the generator 4 through the second solution pump 11 and the second solution heat exchanger 12, the concentrated solution of the generator 4 enters the second generator 9 through the second solution heat exchanger 12, the high-temperature heat medium flows through the second generator 9, heats the solution entering it to release the refrigerant steam and provide it to the second absorber 13, and the concentrated solution of the second generator 9 enters the absorber 1 through the solution heat exchanger 3, forming an ejector-absorption heat pump.

[0063] Figure 6 The shown ejector-absorption heat pump is realized as follows:

[0064] (1) Structurally, in Figure 5 In the jet-absorption heat pump shown, a third generator, a second throttling valve, a third solution pump, and a third solution heat exchanger are added. The second absorber 13 is equipped with a dilute solution pipeline that connects to the third generator 14 via the third solution pump 15 and the third solution heat exchanger 16. The third generator 14 also has a concentrated solution pipeline that connects to the second generator 9 via the third solution heat exchanger 16. The generator 4 is adjusted so that it has a refrigerant vapor channel that connects to the condenser 5 and the ejector 8 respectively. After the generator 4 has a refrigerant vapor channel that connects to the third generator 14, the third generator 14 also has a refrigerant liquid pipeline that connects to the condenser 5 or the evaporator 7 via the second throttling valve 10. The third generator 14 also has a refrigerant vapor channel that connects to the condenser 5 and the high-pressure steam inlet of the ejector 8.

[0065] (2) In terms of process, with Figure 5 Compared to the jet-absorption heat pump shown, the difference lies in the following: the refrigerant vapor generated by generator 4 is provided to the third generator 14 as the driving heat medium. Part of the dilute solution of the second absorber 13 enters the third generator 14 through the third solution pump 15 and the third solution heat exchanger 16. The refrigerant vapor flows through the third generator 14, heats the solution inside, releases the refrigerant vapor, and splits into two paths—the first path enters the condenser 5 to release heat and condense, and the second path enters the ejector 8 as working steam. The concentrated solution of the third generator 14 enters the second generator 9 through the third solution heat exchanger 16. The refrigerant vapor flowing through the third generator 14 releases heat and becomes refrigerant liquid, and then enters the condenser 5 through the second throttling valve 10, thus forming a jet-absorption heat pump.

[0066] Figure 7 The jet-absorption heat pump shown is implemented as follows:

[0067] (1) Structurally, in Figure 5In the jet-absorption heat pump shown, a third generator, a second throttling valve, and a third solution heat exchanger are added. The second absorber 13 is connected to the generator 4 via a dilute solution pipeline through the second solution pump 11 and the second solution heat exchanger 12. Alternatively, the second absorber 13 can be connected to the generator 4 via a dilute solution pipeline through the second solution pump 11, the second solution heat exchanger 12, and the third solution heat exchanger 16. The generator 4 can be connected to the second generator 9 via a concentrated solution pipeline through the second solution heat exchanger 12. Alternatively, the generator 4 can be connected to the second generator 9 via a concentrated solution pipeline through the third solution heat exchanger. Unit 16 is connected to the third generator 14. The third generator 14 has a concentrated solution pipeline that connects to the second generator 9 via the second solution heat exchanger 12. The generator 4 has a refrigerant vapor channel that connects to the condenser 5 and the ejector 8 respectively. After the generator 4 has a refrigerant vapor channel that connects to the third generator 14, the third generator 14 has a refrigerant liquid pipeline that connects to the condenser 5 via the second throttle valve 10. The third generator 14 also has a refrigerant vapor channel that connects to the condenser 5 and the high-pressure steam inlet of the ejector 8.

[0068] (2) In terms of process, with Figure 5 Compared to the jet-absorption heat pump shown, the difference lies in the following: the refrigerant vapor generated by generator 4 is provided to the third generator 14 as the driving heat medium. The dilute solution of the second absorber 13 enters generator 4 through the second solution pump 11, the second solution heat exchanger 12 and the third solution heat exchanger 16. The concentrated solution of generator 4 enters the third generator 14 through the third solution heat exchanger 16. The refrigerant vapor and the high-temperature heat medium flow through the third generator 14 respectively, heating the solution entering it to release refrigerant vapor and splitting it into two paths - the first path enters condenser 5 to release heat and condense, and the second path enters ejector 8 as working steam. The concentrated solution of the third generator 14 enters the second generator 9 through the second solution heat exchanger 12. The refrigerant vapor flowing through the third generator 14 releases heat to become refrigerant liquid and then enters condenser 5 through the second throttling valve 10, thus forming a jet-absorption heat pump.

[0069] Figure 8 The jet-absorption heat pump shown is implemented as follows:

[0070] (1) Structurally, in Figure 5In the jet-absorption heat pump shown, a third generator, a second throttle valve, a third solution pump, and a third solution heat exchanger are added. The second absorber 13 is connected to the generator 4 via a dilute solution pipeline through the second solution pump 11 and the second solution heat exchanger 12. This is adjusted so that the second absorber 13 has a dilute solution pipeline connected to the third generator 14 via the second solution pump 11 and the second solution heat exchanger 12. The third generator 14 then has a concentrated solution pipeline connected to the generator 4 via the third solution pump 15 and the third solution heat exchanger 16. The generator 4 has a concentrated solution pipeline connected to the second solution heat exchanger... The generator 4 is connected to the second generator 9 via a concentrated solution pipeline through the third solution heat exchanger 16 and the second solution heat exchanger 12. The generator 4 is connected to the condenser 5 and the ejector 8 via a refrigerant vapor channel. The generator 4 is then connected to the third generator 14 via a refrigerant liquid pipeline through the second throttle valve 10. The third generator 14 also has a refrigerant vapor channel connected to the condenser 5 and the high-pressure steam inlet of the ejector 8.

[0071] (2) In terms of process, with Figure 5 Compared to the jet-absorption heat pump shown, the difference lies in the following: the refrigerant vapor generated by generator 4 is provided to the third generator 14 as the driving heat medium. The dilute solution of the second absorber 13 enters the third generator 14 via the second solution pump 11 and the second solution heat exchanger 12. The refrigerant vapor flows through the third generator 14, heats the solution inside, releases the refrigerant vapor, and splits into two paths—the first path enters the condenser 5 to release heat and condense, and the second path enters the ejector 8 as working steam. The concentrated solution of the third generator 14 enters the generator 4 via the third solution pump 15 and the third solution heat exchanger 16. The concentrated solution of the generator 4 enters the second generator 9 via the third solution heat exchanger 16 and the second solution heat exchanger 12. The refrigerant vapor flowing through the third generator 14 releases heat and becomes refrigerant liquid, and then enters the condenser 5 through the second throttling valve 10, thus forming a jet-absorption heat pump.

[0072] Figure 9 The jet-absorption heat pump shown is implemented as follows:

[0073] (1) Structurally, in Figure 1In the jet-absorption heat pump shown, a second generator, a second solution pump, a second solution heat exchanger, and a second absorber are added. The generator 4 is adjusted so that the refrigerant vapor channel is connected to the condenser 5 and the ejector 8 respectively. The generator 4 is also connected to the second absorber 13 via the refrigerant vapor channel. The second absorber 13 also has a dilute solution pipeline connected to the second generator 9 via the second solution pump 11 and the second solution heat exchanger 12. The second generator 9 also has a concentrated solution pipeline connected to the second absorber 13 via the second solution heat exchanger 12. The second generator 9 also has a refrigerant vapor channel connected to the condenser 5 and the high-pressure steam inlet of the ejector 8. The second generator 9 also has a high-temperature heat medium channel connected to the outside. The second absorber 13 also has a heated medium channel connected to the outside.

[0074] (2) In terms of process, with Figure 1 Compared to the jet-absorption heat pump shown, the difference lies in the following: the refrigerant vapor generated by generator 4 enters the second absorber 13, the dilute solution in the second absorber 13 enters the second generator 9 via the second solution pump 11 and the second solution heat exchanger 12, the high-temperature heat medium flows through the second generator 9, heats the solution entering it and releases refrigerant vapor—the first path enters the condenser 5 to release heat and condense, and the second path enters the ejector 8 as working vapor, the concentrated solution in the second generator 9 enters the second absorber 13 via the second solution heat exchanger 12, absorbs the refrigerant vapor and releases heat to the heated medium, thus forming a jet-absorption heat pump.

[0075] Figure 10 The jet-absorption heat pump shown is implemented as follows:

[0076] (1) Structurally, it is mainly composed of absorber, solution pump, solution heat exchanger, generator, condenser, throttle valve, evaporator, ejector, second generator, second throttle valve, second solution pump, second absorber, second condenser, solution throttle valve, second solution throttle valve and vapor distribution chamber. The absorber 1 has a dilute solution pipeline which is communicated with the second absorber 13 through the solution pump 2 and the solution heat exchanger 3. The second absorber 13 has a dilute solution pipeline which is communicated with the second generator 9 through the solution throttle valve 18. The second generator 9 has a concentrated solution pipeline which is communicated with the generator 4 through the second solution pump 11. The generator 4 has a concentrated solution pipeline which is communicated with the vapor distribution chamber 20 through the second solution throttle valve 19 and the second absorber 13. The vapor distribution chamber 20 has a concentrated solution pipeline which is communicated with the absorber 1 through the solution heat exchanger 3. The generator 4 has a refrigerant vapor passage which is communicated with the second absorber 13. The second generator 9 has a refrigerant vapor passage which is communicated with the second condenser 17. The second condenser 17 has a refrigerant liquid pipeline which is communicated with the evaporator 7 through the second throttle valve 10. The vapor distribution chamber 20 has a refrigerant vapor passage which is communicated with the condenser 5. The condenser 5 has a refrigerant liquid pipeline which is communicated with the evaporator 7 through the throttle valve 6. The second generator 9 or the vapor distribution chamber 20 has a refrigerant vapor passage which is communicated with the high pressure steam inlet of the ejector 8. The evaporator 7 has a refrigerant vapor passage which is communicated with the low pressure steam inlet of the ejector 8. The ejector 8 has a medium pressure refrigerant vapor passage which is communicated with the absorber 1. The generator 4 and the second generator 9 have high temperature heat medium passages which are communicated with the outside respectively. The absorber 1, the condenser 5 and the second condenser 17 have heated medium passages which are communicated with the outside respectively. The evaporator 7 has a low temperature heat medium passage which is communicated with the outside.

[0077] (2) In terms of process, the dilute solution of absorber 1 enters the second absorber 13 via solution pump 2 and solution heat exchanger 3, absorbs refrigerant vapor and releases heat. The dilute solution of the second absorber 13 is throttled by solution throttling valve 18 and enters the second generator 9. The high-temperature heat medium flows through the second generator 9 and heats the solution inside, releasing refrigerant vapor. The concentrated solution of the second generator 9 is pressurized by the second solution pump 11 and enters the generator 4. The high-temperature heat medium flows through the generator 4 and heats the solution inside, releasing refrigerant vapor. The concentrated solution of the generator 4 is throttled by the second solution throttling valve 19 and then flows through the second absorber 13 to absorb heat and vaporize, and enters the steam distribution chamber 20. The steam distribution chamber 20 releases refrigerant vapor. The concentrated solution of the steam distribution chamber 20 enters the absorber 1 via solution heat exchanger 3, absorbs refrigerant vapor and releases heat to the heated medium. The refrigerant vapor released by the generator 4 is supplied to the second absorber 13. The refrigerant vapor released by the second generator 9 is divided into two paths—the first... The first path of steam enters the second condenser 17 and releases heat to the heated medium to become refrigerant liquid. The second path of steam enters the ejector 8 as working steam. The refrigerant liquid in the second condenser 17 is throttled by the second throttle valve 10 and enters the evaporator 7 to absorb heat and become refrigerant vapor. The refrigerant vapor released from the steam distribution chamber 20 enters the condenser 5 and releases heat to the heated medium to become refrigerant liquid. The refrigerant liquid in the condenser 5 is throttled by the throttle valve 6 and enters the evaporator 7 to absorb heat and become refrigerant vapor. The working steam enters the ejector 8, flows through the nozzle to reduce pressure and increase speed to form a low pressure. The refrigerant vapor generated by the evaporator 7 is drawn into the low-pressure zone of the ejector 8. After the two steam paths are mixed, they flow through the diffuser to reduce speed and increase pressure to form medium-pressure steam and are supplied to the absorber 1. The high-temperature heat medium provides the driving heat load through the generator 4 and the second generator 9. The heated medium obtains the heating load through the absorber 1, condenser 5 and the second condenser 17. The low-temperature heat medium provides the low-temperature heat load through the evaporator 7, forming a jet-absorption heat pump.

[0078] Figure 11 The jet-absorption heat pump shown is implemented as follows:

[0079] (1) Structurally, in Figure 10 In the jet-absorption heat pump shown, the second condenser and the second throttle valve are removed, the heated medium channel connecting the second condenser 17 to the outside is removed, and the refrigerant liquid pipeline connecting the second condenser 17 to the condenser 5 or the evaporator 7 via the second throttle valve 10 is removed. The refrigerant vapor channel connecting the second generator 9 to the second condenser 17 is adjusted so that the second generator 9 has a refrigerant vapor channel connecting to the condenser 5.

[0080] (2) In terms of process, with Figure 10 Compared to the jet-absorption heat pump shown, the difference is that the refrigerant vapor released by the second generator 9 and the steam distribution chamber 22 is divided into two paths—the first path enters the condenser 5 to release heat and condense, and the second path enters the ejector 8 as working steam, thus forming a jet-absorption heat pump.

[0081] Figure 12 The jet-absorption heat pump shown is implemented as follows:

[0082] (1) Structurally, in Figure 1 In the jet-absorption heat pump shown, a second generator, a second throttling valve, a second solution heat exchanger, and a second condenser are added. The absorber 1, which has a dilute solution pipeline connected to the generator 4 via the solution pump 2 and the solution heat exchanger 3, is adjusted so that the absorber 1 has a dilute solution pipeline connected to the second generator 9 via the solution pump 2, the solution heat exchanger 3, and the second solution heat exchanger 12. The second generator 9 then has a concentrated solution pipeline connected to the generator 4 via the second solution heat exchanger 12. The second generator 9 also has a refrigerant vapor channel connected to the second condenser 17. The second condenser 17 also has a refrigerant liquid pipeline connected to the condenser 5 or the evaporator 7 via the second throttling valve 10. The second generator 9 also has a high-temperature heat medium channel connected to the outside. The second condenser 17 also has a heated medium channel connected to the outside. The generator 4, which has a refrigerant vapor channel connected to the high-pressure steam inlet of the ejector 8, is adjusted so that the second generator 9 has a refrigerant vapor channel connected to the high-pressure steam inlet of the ejector 8.

[0083] (2) In terms of process, with Figure 1 Compared to the jet-absorption heat pump shown, the difference lies in the following: the dilute solution of absorber 1 flows through solution pump 2, solution heat exchanger 3, and second solution heat exchanger 12 into second generator 9. The high-temperature heat medium flows through second generator 9, heating the solution inside and releasing refrigerant vapor, which is then divided into two paths—the first path enters second condenser 17 for heat release and condensation, and the second path enters ejector 8 as working steam. The concentrated solution of second generator 9 enters generator 4 through second solution heat exchanger 12. The refrigerant vapor in second condenser 17 releases heat to the heated medium to form refrigerant liquid. The refrigerant liquid discharged from second condenser 17 flows through second throttle valve 10 to reduce pressure and temperature, and then enters condenser 5. This increases the driving heat load provided by the high-temperature heat medium through second generator 9 and increases the heating load obtained by the heated medium through second condenser 17, thus forming a jet-absorption heat pump.

[0084] Figure 13 The jet-absorption heat pump shown is implemented as follows:

[0085] (1) Structurally, in Figure 1In the jet-absorption heat pump shown, a second generator, a second throttling valve, a second solution pump, a second solution heat exchanger, and a second condenser are added. The generator 4 is adjusted so that the concentrated solution pipeline is connected to the absorber 1 via the solution heat exchanger 3, and the generator 4 is connected to the second generator 9 via the second solution pump 11 and the second solution heat exchanger 12. The second generator 9 is also connected to the absorber 1 via the second solution heat exchanger 12 and the solution heat exchanger 3. The second generator 9 also has a refrigerant vapor channel connected to the second condenser 17. The second condenser 17 also has a refrigerant liquid pipeline connected to the evaporator 7 via the second throttling valve 10. The second generator 9 also has a high-temperature heat medium channel connected to the outside, and the second condenser 17 also has a heated medium channel connected to the outside.

[0086] (2) In terms of process, with Figure 1 Compared to the jet-absorption heat pump shown, the difference lies in the following: the concentrated solution of generator 4 flows through the second solution pump 11 and the second solution heat exchanger 12 into the second generator 9. The high-temperature heat medium flows through the second generator 9, heating the solution inside and releasing refrigerant vapor, which is then supplied to the second condenser 17. The concentrated solution of the second generator 9 flows through the second solution heat exchanger 12 and the solution heat exchanger 3 into the absorber 1. The refrigerant vapor in the second condenser 17 releases heat to the heated medium to form a refrigerant liquid. The refrigerant liquid discharged from the second condenser 17 flows through the second throttle valve 10 to reduce pressure and temperature, and then enters the evaporator 7. This increases the driving heat load provided by the high-temperature heat medium through the second generator 9 and increases the heating load obtained by the heated medium through the second condenser 17, thus forming a jet-absorption heat pump.

[0087] Figure 14 The jet-absorption heat pump shown is implemented as follows:

[0088] (1) Structurally, in Figure 1The shown ejector-absorption heat pump, the second throttling valve, the second solution heat exchanger, the second absorber, the second evaporator and the second ejector are added, the connection of the weak solution line of the absorber 1 to the generator 4 through the solution pump 2 and the solution heat exchanger 3 is adjusted to the connection of the weak solution line of the absorber 1 to the generator 4 through the solution pump 2, the solution heat exchanger 3 and the second solution heat exchanger 12, the connection of the strong solution line of the generator 4 to the absorber 1 through the solution heat exchanger 3 is adjusted to the connection of the strong solution line of the generator 4 to the second absorber 13 through the second solution heat exchanger 12, the second absorber 13 has a weak solution line connected to the absorber 1 through the solution heat exchanger 3, the condenser 5 has a refrigerant liquid line connected to the second evaporator 21 through the second throttling valve 10, the second evaporator 21 has a refrigerant vapor passage connected to the low-pressure steam inlet of the second ejector 22, the generator 4 has a refrigerant vapor passage connected to the high-pressure steam inlet of the second ejector 22, the second ejector 22 has a medium-pressure refrigerant vapor passage connected to the second absorber 13, the second absorber 13 has a heated medium passage connected to the outside, and the second evaporator 21 has a low-temperature heat medium passage connected to the outside.

[0089] (2) Compared with the ejector-absorption heat pump shown in Figure 1 The difference is that the weak solution of the absorber 1 flows into the generator 4 through the solution pump 2, the solution heat exchanger 3 and the second solution heat exchanger 12, the strong solution of the generator 4 flows into the second absorber 13 through the second solution heat exchanger 12, absorbs the refrigerant vapor and releases heat to the heated medium, and the weak solution of the second absorber 13 flows into the absorber 1 through the solution heat exchanger 3; a part of the refrigerant liquid of the condenser 5 flows into the second evaporator 21 through the second throttling valve 10 to be heated and vaporized, the refrigerant vapor released by the generator 4 is divided into three routes, the first route enters the condenser 5, the second route enters the ejector 8 as working steam, and the third route provides working steam to the second ejector 22, the working steam enters the second ejector 22, flows through the nozzle to be decompressed and accelerated, and forms low-pressure steam, the refrigerant vapor generated by the second evaporator 21 is sucked into the low-pressure area of the second ejector 22, the two routes of steam are mixed and then flow through the diffuser to form medium-pressure steam and provide it to the second absorber 13; the low-temperature heat medium is added to pass through the second evaporator 21 to provide low-temperature heat load, and the heated medium is added to pass through the second absorber 13 to obtain heat load, thereby forming the ejector-absorption heat pump.

[0090] Figure 15 The ejector-absorption heat pump shown in

[0091] (1) In terms of structure, in Figure 1The shown ejector-absorption heat pump, the second throttling valve, the second solution pump, the second solution heat exchanger, the second absorber, the second evaporator and the second ejector are added, the connection of the weak solution line of the absorber 1 to the generator 4 through the solution pump 2 and the solution heat exchanger 3 is adjusted to the connection of the weak solution line of the absorber 1 to the second absorber 13 through the solution pump 2 and the solution heat exchanger 3, the second absorber 13 has a weak solution line connected to the generator 4 through the second solution pump 11 and the second solution heat exchanger 12, the connection of the strong solution line of the generator 4 to the absorber 1 through the solution heat exchanger 3 is adjusted to the connection of the strong solution line of the generator 4 to the absorber 1 through the second solution heat exchanger 12 and the solution heat exchanger 3, the condenser 5 is provided with a refrigerant liquid line connected to the second evaporator 21 through the second throttling valve 10, the second evaporator 21 has a refrigerant vapor passage connected to the low-pressure steam inlet of the second ejector 22, the generator 4 is provided with a refrigerant vapor passage connected to the high-pressure steam inlet of the second ejector 22, the second ejector 22 has a medium-pressure refrigerant vapor passage connected to the second absorber 13, the second absorber 13 has a heated medium passage connected to the outside, and the second evaporator 21 has a low-temperature heat medium passage connected to the outside.

[0092] (2) Compared with the ejector-absorption heat pump shown in Figure 1 , the difference is that the weak solution of the absorber 1 flows through the solution pump 2 and the solution heat exchanger 3 into the second absorber 13, absorbs the refrigerant vapor and releases heat to the heated medium, the weak solution of the second absorber 13 flows through the second solution pump 11 and the second solution heat exchanger 12 into the generator 4, the strong solution of the generator 4 flows through the second solution heat exchanger 12 and the solution heat exchanger 3 into the absorber 1; a part of the refrigerant liquid of the condenser 5 flows through the second throttling valve 10 to reduce the pressure and temperature, enters the second evaporator 21 to absorb heat and vaporize; the refrigerant vapor released by the generator 4 is divided into three routes - the first route enters the condenser 5, the second route enters the ejector 8 as working steam, and the third route provides working steam to the second ejector 22, the working steam enters the second ejector 22, flows through the nozzle to reduce the pressure and increase the speed, and forms low-pressure steam, the refrigerant vapor generated by the second evaporator 21 is sucked into the low-pressure area of the second ejector 22, the two routes of steam are mixed and then flow through the diffuser to reduce the speed and increase the pressure to form medium-pressure steam and provide it to the second absorber 13; the low-temperature heat medium is added to pass through the second evaporator 21 to provide low-temperature heat load, and the heated medium is added to pass through the second absorber 13 to obtain heat supply load, forming an ejector-absorption heat pump.

[0093] Figure 16 The ejector-absorption heat pump shown in

[0094] (1) In terms of structure, in the ejector-absorption heat pump shown in Figure 4 , the refrigerant vapor passage of the second generator 9 connected to the high-pressure steam inlet of the ejector 8 is cancelled, and the generator 4 is provided with a refrigerant vapor passage connected to the high-pressure steam inlet of the ejector 8.

[0095] (2) In terms of process, with Figure 4 Compared to the jet-absorption heat pump shown, the difference is that the refrigerant vapor emitted by the second generator 9 enters the condenser 5 to release heat and condense, and the refrigerant vapor released by the generator 4 is divided into two paths - the first path is provided to the second generator 9 as the driving heat medium, and the second path is used as working vapor to enter the ejector 8, thus forming a jet-absorption heat pump.

[0096] Figure 17 The jet-absorption heat pump shown is implemented as follows:

[0097] (1) Structurally, in Figure 1 In the jet-absorption heat pump shown, nozzle A is added and the throttle valve 6 is replaced.

[0098] (2) In terms of process, with Figure 1 Compared to the jet-absorption heat pump shown, the difference is that the refrigerant liquid in the condenser 5 flows through the nozzle A to reduce pressure and increase speed, flows through the evaporator 7 to absorb heat and vaporize, and is then drawn into the low-pressure area of ​​the ejector 8 to form a jet-absorption heat pump.

[0099] Figure 18 The jet-absorption heat pump shown is implemented as follows:

[0100] (1) Structurally, in Figure 3 In the jet-absorption heat pump shown, a nozzle A is added and replaces the throttle valve 6, and a second nozzle B is added and replaces the second throttle valve 10.

[0101] (2) In terms of process, with Figure 3 Compared to the jet-absorption heat pump shown, the difference is that the refrigerant liquid discharged from the second generator 9 flows through the second nozzle B to reduce pressure and increase speed, and then enters the condenser 5 and releases heat; the refrigerant liquid in the condenser 5 flows through the nozzle A to reduce pressure and increase speed, flows through the evaporator 7 to absorb heat and vaporize, and then enters the low-pressure area of ​​the ejector 8 to form a jet-absorption heat pump.

[0102] The effects achievable by this invention—the jet-absorption heat pump proposed in this invention has the following effects and advantages:

[0103] (1) A new technology for thermal energy-driven refrigeration / heating was proposed, which enriched the thermal energy refrigeration / heating technology.

[0104] (2) Effectively improve the working parameters of refrigerant vapor, significantly expand the range of heat pump working parameters, and facilitate the realization of cooling and heating over a larger temperature span.

[0105] (3) The process is reasonable and the performance index is reasonable.

[0106] (4) Simple structure, reducing manufacturing costs.

[0107] (5) It is beneficial to realize full use of high-grade heat energy and reduce systematic temperature difference irreversible loss.

[0108] (6) The ejector is simple to manufacture, durable and has small irreversible loss, which is beneficial to improve the performance index of the heat pump.

[0109] (7) The heat supply temperature can be greatly improved, which makes up for the deficiency of the absorption heat pump technology and effectively avoids the conflict between the driving heat medium parameters and the solution performance.

[0110] (8) Multiple specific technical solutions are given, which can cope with many different actual conditions, have a wide range of applications, and are beneficial to expand the application range and value of the ejector-absorption heat pump technology.

Claims

1. A jet-absorption heat pump mainly composed of an absorber, a solution pump, a solution heat exchanger, a generator, a condenser, a throttle valve, an evaporator and a jet pump; the absorber (1) has a dilute solution pipeline communicated with the generator (4) through the solution pump (2) and the solution heat exchanger (3), the generator (4) also has a concentrated solution pipeline communicated with the absorber (1) through the solution heat exchanger (3), the generator (4) also has a refrigerant vapor channel communicated with the condenser (5), the condenser (5) also has a refrigerant liquid pipeline communicated with the evaporator (7) through the throttle valve (6), the generator (4) also has a refrigerant vapor channel communicated with the high-pressure steam inlet of the jet pump (8), the evaporator (7) also has a refrigerant vapor channel communicated with the low-pressure steam inlet of the jet pump (8), the jet pump (8) also has a medium-pressure refrigerant vapor channel communicated with the absorber (1), the generator (4) also has a high-temperature heat medium channel communicated with the outside, the absorber (1) and the condenser (5) also have heat medium channels communicated with the outside respectively, and the evaporator (7) also has a low-temperature heat medium channel communicated with the outside, thereby forming the jet-absorption heat pump.

2. The jet-absorption heat pump of claim 1, wherein a second generator, a second throttle valve, a second solution pump and a second solution heat exchanger are added, the absorber (1) is additionally provided with a dilute solution pipeline communicated with the second generator (9) through the second solution pump (11) and the second solution heat exchanger (12), the second generator (9) also has a concentrated solution pipeline communicated with the absorber (1) through the second solution heat exchanger (12), the refrigerant vapor channel of the generator (4) is communicated with the condenser (5) and the jet pump (8) respectively and is adjusted to be communicated with the second generator (9), the second generator (9) then has a refrigerant liquid pipeline communicated with the condenser (5) or the evaporator (7) through the second throttle valve (10), the second generator (9) also has a refrigerant vapor channel communicated with the condenser (5), the second generator (9) also has a refrigerant vapor channel communicated with the high-pressure steam inlet of the jet pump (8), thereby forming the jet-absorption heat pump.

3. The ejector-absorption heat pump as claimed in claim 1, wherein a second generator, a second throttling valve and a second solution heat exchanger are added, the communication of the weak solution line of the absorber (1) through the solution pump (2) and the solution heat exchanger (3) with the generator (4) is adjusted to the communication of the weak solution line of the absorber (1) through the solution pump (2), the solution heat exchanger (3) and the second solution heat exchanger (12) with the generator (4), the communication of the strong solution line of the generator (4) through the solution heat exchanger (3) with the absorber (1) is adjusted to the communication of the strong solution line of the generator (4) through the second solution heat exchanger (12) with the second generator (9), the second generator (9) further has the communication of the strong solution line with the absorber (1) through the solution heat exchanger (3), the communication of the refrigerant vapor passage of the generator (4) with the condenser (5) and the ejector (8) is adjusted to the communication of the refrigerant vapor passage of the generator (4) with the second generator (9), the second generator (9) further has the communication of the refrigerant liquid line with the condenser (5) or the evaporator (7) through the second throttling valve (10), the second generator (9) further has the communication of the refrigerant vapor passage with the condenser (5), and the second generator (9) further has the communication of the refrigerant vapor passage with the high pressure steam inlet of the ejector (8), thereby forming the ejector-absorption heat pump.

4. The ejector-absorption heat pump as claimed in claim 1, wherein a second generator, a second throttling valve, a second solution pump and a second solution heat exchanger are added, the communication of the weak solution line of the absorber (1) through the solution pump (2) and the solution heat exchanger (3) with the generator (4) is adjusted to the communication of the weak solution line of the absorber (1) through the solution pump (2) and the solution heat exchanger (3) with the second generator (9), the second generator (9) further has the communication of the strong solution line with the generator (4) through the second solution pump (11) and the second solution heat exchanger (12), the communication of the strong solution line of the generator (4) through the solution heat exchanger (3) with the absorber (1) is adjusted to the communication of the strong solution line of the generator (4) through the second solution heat exchanger (12) and the solution heat exchanger (3) with the absorber (1), the communication of the refrigerant vapor passage of the generator (4) with the condenser (5) and the ejector (8) is adjusted to the communication of the refrigerant vapor passage of the generator (4) with the second generator (9), the second generator (9) further has the communication of the refrigerant liquid line with the condenser (5) or the evaporator (7) through the second throttling valve (10), the second generator (9) further has the communication of the refrigerant vapor passage with the condenser (5), and the second generator (9) further has the communication of the refrigerant vapor passage with the high pressure steam inlet of the ejector (8), thereby forming the ejector-absorption heat pump.

5. The ejector-absorption heat pump as claimed in claim 1, wherein a second generator, a second solution pump, a second solution heat exchanger and a second absorber are added, the dilute solution line of the absorber (1) is connected to the generator (4) through the solution pump (2) and the solution heat exchanger (3) and is adjusted to be connected to the second absorber (13) through the solution pump (2) and the solution heat exchanger (3), the second absorber (13) has a dilute solution line connected to the generator (4) through the second solution pump (11) and the second solution heat exchanger (12), the concentrated solution line of the generator (4) is connected to the absorber (1) through the solution heat exchanger (3) and is adjusted to be connected to the second generator (9) through the second solution heat exchanger (12), the second generator (9) has a concentrated solution line connected to the absorber (1) through the solution heat exchanger (3), the second generator (9) has a refrigerant vapor passage connected to the second absorber (13), the second generator (9) has a high-temperature heat medium passage connected to the outside, and the second absorber (13) has a heated medium passage connected to the outside, thereby forming the ejector-absorption heat pump.

6. The ejector-absorption heat pump as claimed in claim 5, wherein a third generator, a second throttling valve, a third solution pump and a third solution heat exchanger are added, the second absorber (13) has a dilute solution line connected to the third generator (14) through the third solution pump (15) and the third solution heat exchanger (16), the third generator (14) has a concentrated solution line connected to the second generator (9) through the third solution heat exchanger (16), the refrigerant vapor passage of the generator (4) is connected to the third generator (14), the third generator (14) has a refrigerant liquid line connected to the condenser (5) or the evaporator (7) through the second throttling valve (10) after the refrigerant vapor passage of the third generator (14) is connected to the third generator (14), the third generator (14) has a refrigerant vapor passage connected to the condenser (5), and the third generator (14) has a refrigerant vapor passage connected to the high-pressure steam inlet of the ejector (8), thereby forming the ejector-absorption heat pump.

7. The ejector-absorption heat pump as claimed in claim 5, wherein a third generator, a second throttling valve and a third solution heat exchanger are added, the communication of the second absorber (13) with the generator (4) through the second solution pump (11) and the second solution heat exchanger (12) is adjusted to the communication of the second absorber (13) with the generator (4) through the second solution pump (11), the second solution heat exchanger (12) and the third solution heat exchanger (16), the communication of the generator (4) with the second generator (9) through the second solution heat exchanger (12) is adjusted to the communication of the generator (4) with the third generator (14) through the third solution heat exchanger (16), the third generator (14) further communicates with the second generator (9) through the second solution heat exchanger (12), the communication of the generator (4) with the condenser (5) and the ejector (8) through the refrigerant vapor passage is adjusted to the communication of the generator (4) with the third generator (14) through the refrigerant vapor passage, the third generator (14) further communicates with the condenser (5) through the refrigerant liquid passage and the second throttling valve (10), the third generator (14) further communicates with the high pressure steam inlet of the ejector (8) through the refrigerant vapor passage, thereby forming the ejector-absorption heat pump.

8. The ejector-absorption heat pump as claimed in claim 5, wherein a third generator, a second throttling valve, a third solution pump and a third solution heat exchanger are added, the communication of the second absorber (13) with the generator (4) through the second solution pump (11) and the second solution heat exchanger (12) is adjusted to the communication of the second absorber (13) with the third generator (14) through the second solution pump (11) and the second solution heat exchanger (12), the communication of the third generator (14) with the generator (4) through the third solution pump (15) and the third solution heat exchanger (16) is adjusted to the communication of the third generator (14) with the second generator (9) through the second solution heat exchanger (12), the communication of the generator (4) with the condenser (5) and the ejector (8) through the refrigerant vapor passage is adjusted to the communication of the generator (4) with the third generator (14) through the refrigerant vapor passage, the third generator (14) further communicates with the condenser (5) through the refrigerant liquid passage and the second throttling valve (10), the third generator (14) further communicates with the high pressure steam inlet of the ejector (8) through the refrigerant vapor passage, thereby forming the ejector-absorption heat pump.

9. The ejector-absorption heat pump as claimed in claim 1, wherein a second generator, a second solution pump, a second solution heat exchanger and a second absorber are added, and the refrigerant vapor passage of the generator (4) is connected to the second absorber (13) instead of the condenser (5) and the ejector (8), the second absorber (13) has a dilute solution line connected to the second generator (9) through the second solution pump (11) and the second solution heat exchanger (12), the second generator (9) has a concentrated solution line connected to the second absorber (13) through the second solution heat exchanger (12), a refrigerant vapor passage connected to the condenser (5), a refrigerant vapor passage connected to the high pressure steam inlet of the ejector (8), and a high temperature heat medium passage connected to the outside, and the second absorber (13) has a heated medium passage connected to the outside, thereby forming the ejector-absorption heat pump.

10. The ejector-absorption heat pump mainly composed of an absorber, a solution pump, a solution heat exchanger, a generator, a condenser, a throttling valve, an evaporator, an ejector, a second generator, a second throttling valve, a second solution pump, a second absorber, a second condenser, a solution throttling valve, a second solution throttling valve and a flash chamber, wherein the absorber (1) has a dilute solution line connected to the second absorber (13) through the solution pump (2) and the solution heat exchanger (3), the second absorber (13) has a dilute solution line connected to the second generator (9) through the solution throttling valve (18), the second generator (9) has a concentrated solution line connected to the generator (4) through the second solution pump (11), the generator (4) has a concentrated solution line connected to the flash chamber (20) through the second solution throttling valve (19) and the second absorber (13), the flash chamber (20) has a concentrated solution line connected to the absorber (1) through the solution heat exchanger (3), the generator (4) has a refrigerant vapor passage connected to the second absorber (13), the second generator (9) has a refrigerant vapor passage connected to the second condenser (17), the second condenser (17) has a refrigerant liquid line connected to the condenser (5) or the evaporator (7) through the second throttling valve (10), the flash chamber (20) has a refrigerant vapor passage connected to the condenser (5), the condenser (5) has a refrigerant liquid line connected to the evaporator (7) through the throttling valve (6), the second generator (9) or the flash chamber (20) has a refrigerant vapor passage connected to the high pressure steam inlet of the ejector (8), the evaporator (7) has a refrigerant vapor passage connected to the low pressure steam inlet of the ejector (8), the ejector (8) has a medium pressure refrigerant vapor passage connected to the absorber (1), the generator (4) and the second generator (9) have high temperature heat medium passages connected to the outside, the absorber (1), the condenser (5) and the second condenser (17) have heated medium passages connected to the outside, and the evaporator (7) has a low temperature heat medium passage connected to the outside, thereby forming the ejector-absorption heat pump.

11. The ejector-absorption heat pump is in the ejector-absorption heat pump of claim 10, cancel the second condenser and the second throttle valve, cancel the second condenser (17) and the heated medium passage outside the communication, cancel the second condenser (17) and the condenser (5) or the evaporator (7) communication of the condenser liquid pipeline through the second throttle valve (10), the second generator (9) with the condenser (5) communication of the second generator (9) with the condenser steam passage is adjusted to be connected, and the ejector-absorption heat pump is formed.

12. The ejector-absorption heat pump is in any one of the ejector-absorption heat pumps of claims 2-4, the second generator (9) is provided with a high-temperature heat medium passage and is communicated with the outside, and the ejector-absorption heat pump is formed.

13. The ejector-absorption heat pump is in any one of the ejector-absorption heat pumps of claims 6-8, the third generator (14) is provided with a high-temperature heat medium passage and is communicated with the outside, and the ejector-absorption heat pump is formed.

14. The ejector-absorption heat pump as set forth in claim 1, wherein a second generator, a second throttling valve, a second solution heat exchanger and a second condenser are added, the communication of the dilute solution line of the absorber (1) with the generator (4) via the solution pump (2) and the solution heat exchanger (3) is adjusted to the communication of the dilute solution line of the absorber (1) with the second generator (9) via the solution pump (2), the solution heat exchanger (3) and the second solution heat exchanger (12), the second generator (9) has the communication of the concentrated solution line with the generator (4) via the second solution heat exchanger (12), the second generator (9) has the communication of the refrigerant vapor passage with the second condenser (17), the second condenser (17) has the communication of the refrigerant liquid line with the condenser (5) or the evaporator (7) via the second throttling valve (10), the second generator (9) has the communication of the high temperature heat medium passage with the outside, and the second condenser (17) has the communication of the heated medium passage with the outside, thereby forming the ejector-absorption heat pump; wherein, Or the generator (4) with the condenser steam passage is connected to the high-pressure steam inlet of the ejector (8), and the second generator (9) with the condenser steam passage is connected to the high-pressure steam inlet of the ejector (8).

15. The ejector-absorption heat pump is in the ejector-absorption heat pump of claim 1, increase second generator, second throttle, second solution pump, second solution heat exchanger and second condenser, make the concentrated solution pipeline of generator (4) communicate with absorber (1) through solution heat exchanger (3) adjustment is the concentrated solution pipeline of generator (4) communicates with second generator (9) through second solution pump (11) and second solution heat exchanger (12), second generator (9) again has the concentrated solution pipeline and is communicated with absorber (1) through second solution heat exchanger (12) and solution heat exchanger (3), second generator (9) also has the cold agent steam channel and is communicated with second condenser (17), second condenser (17) also has the cold agent liquid pipeline and is communicated with condenser (5) or evaporator (7) through second throttle (10), second generator (9) also has the high temperature heat medium channel and is communicated with the outside, second condenser (17) also has the heated medium channel and is communicated with the outside, form the ejector-absorption heat pump;Wherein, Or the generator (4) with the condenser steam passage is connected to the high-pressure steam inlet of the ejector (8), and the second generator (9) with the condenser steam passage is connected to the high-pressure steam inlet of the ejector (8).

16. The ejector-absorption heat pump is in the ejector-absorption heat pump of claim 1, a second throttle valve, a second solution heat exchanger, a second absorber, a second evaporator and a second ejector are added, the dilute solution pipeline of the absorber (1) is connected to the generator (4) through the solution pump (2) and the solution heat exchanger (3), and the dilute solution pipeline of the absorber (1) is connected to the generator (4) through the solution pump (2), the solution heat exchanger (3) and the second solution heat exchanger (12), the concentrated solution pipeline of the generator (4) is connected to the second absorber (13) through the second solution heat exchanger (12), the second absorber (13) has a dilute solution pipeline connected to the absorber (1) through the solution heat exchanger (3), the condenser (5) or the evaporator (7) is provided with a condenser liquid pipeline connected to the second evaporator (21) through the second throttle valve (10), the second evaporator (21) has a low-pressure steam inlet connected to the second ejector (22) through the condenser steam passage, the generator (4) is provided with a condenser steam passage connected to the second ejector (22) through the high-pressure steam inlet, the second ejector (22) has a medium-pressure condenser steam passage connected to the second absorber (13), the second absorber (13) has a heated medium passage connected to the outside, the second evaporator (21) has a low-temperature heat medium passage connected to the outside, and the ejector-absorption heat pump is formed.

17. The ejector-absorption heat pump is in the ejector-absorption heat pump of claim 1, increase the second throttling valve, the second solution pump, the second solution heat exchanger, the second absorber, the second evaporator and the second ejector, the absorber (1) has the dilute solution pipeline through the solution pump (2) and the solution heat exchanger (3) and the generator (4) communication adjustment is the absorber (1) has the dilute solution pipeline through the solution pump (2) and the solution heat exchanger (3) and the second absorber (13) communication, the second absorber (13) again has the dilute solution pipeline through the second solution pump (11) and the second solution heat exchanger (12) and the generator (4) communication, the generator (4) has the concentrated solution pipeline through the solution heat exchanger (3) and the absorber (1) communication adjustment is the generator (4) has the concentrated solution pipeline through the second solution heat exchanger (12) and the solution heat exchanger (3) and the absorber (1) communication, the condenser (5) or the evaporator (7) increases the refrigerant liquid pipeline through the second throttling valve (10) and the second evaporator (21) communication, the second evaporator (21) has the refrigerant steam channel and the second ejector (22) low pressure steam introduction port communication, the generator (4) increases the refrigerant steam channel and the second ejector (22) high pressure steam inlet communication, the second ejector (22) has the medium pressure refrigerant steam channel and the second absorber (13) communication, the second absorber (13) has the heated medium channel and the outside communication, the second evaporator (21) has the low temperature heat medium channel and the outside communication, form the ejector-absorption heat pump.

18. The ejector-absorption heat pump is in any one of the ejector-absorption heat pump of claim 2-4, 12, cancel the second generator (9) communication refrigerant steam channel of the ejector (8) high pressure steam inlet, the generator (4) increases the refrigerant steam channel and the ejector (8) high pressure steam inlet communication, form the ejector-absorption heat pump.

19. The ejector-absorption heat pump is in any one of the ejector-absorption heat pump of claim 6-8, 13, cancel the third generator (14) communication refrigerant steam channel of the ejector (8) high pressure steam inlet, the generator (4) increases the refrigerant steam channel and the ejector (8) high pressure steam inlet communication, form the ejector-absorption heat pump.

20. The ejector-absorption heat pump is in any one of the ejector-absorption heat pump of claim 1, 5, 9, 11, increase the nozzle (A) and replace the throttling valve (6), form the ejector-absorption heat pump.

21. The ejector-absorption heat pump is in any one of the ejector-absorption heat pump of claim 2-4, 6-8, 10, 12-19, increase the nozzle (A) and replace the throttling valve (6), increase the second nozzle (B) and replace the second throttling valve (10), form the ejector-absorption heat pump.

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