First-class compression-injection-absorption heat pump

Abstract

The invention provides a first-class compression-injection-absorption heat pump, and belongs to the technical field of refrigeration and heat pumps. An absorber is communicated with a generator through a solution pump and a solution heat exchanger, the generator is communicated with the absorber through the solution heat exchanger, the generator is communicated with a low-pressure steam inlet of an ejector, the ejector is communicated with a condenser, the condenser is communicated with a steam generator through a booster pump, and the steam generator is communicated with an evaporator through a throttle valve. The compressor is communicated with the expansion machine through the heat regenerator and the high-temperature heat exchanger, the second compressor is communicated with the expansion machine through the high-temperature heat exchanger, and the expansion machine is provided with a middle steam extraction channel and is communicated with the second compressor through the heat regenerator. The generator, the steam generator and the high-temperature heat exchanger are communicated with the outside through high-temperature heat medium channels, the absorber and the condenser are communicated with the outside through heated medium channels, the evaporator is communicated with the outside through a low-temperature heat medium channel, and the first-class compression-injection-absorption heat pump is formed.

Description

Technical fields:

[0001] This invention belongs to the field of refrigeration and heat pump technology. Background technology:

[0002] People need to utilize energy for cooling and efficient heating, with heat energy being a conventional technology. In practical applications, the operating parameters, performance index, and manufacturing cost of heat pumps need to be given priority and emphasis.

[0003] Among technologies that utilize thermal energy for cooling / heating, steam jet refrigeration devices have the advantages of simple structure, reliable operation, low investment, and long service life; however, their disadvantages are that the utilization efficiency of the driving steam needs to be improved, and the heating temperature is limited.

[0004] Among technologies that utilize thermal energy for cooling / heating, absorption cooling / heat pump technology also has the advantages of low manufacturing cost and the ability to directly use thermal energy as a driving energy source; however, its operating range is greatly limited due to the properties of the working fluid.

[0005] Based on the principles of simplicity, proactiveness, and high efficiency in cooling / heating / combined cooling and heating, this invention proposes a first-class compression-ejection-absorption heat pump with a reasonable process, simple structure, low manufacturing cost, wide parameter range, and rationalized performance index. Summary of the Invention:

[0006] The main objective of this invention is to provide a first type of compression-ejection-absorption heat pump, the specific contents of which are described below:

[0007] 1. The first type of compression-ejection-absorption heat pump mainly consists of an absorber, a solution pump, a solution heat exchanger, a generator, an ejector, a condenser, a booster pump, a steam generator, a throttling valve, an evaporator, a compressor, a regenerator, a high-temperature heat exchanger, an expander, and a second compressor. The absorber has a dilute solution pipeline connected to the generator via the solution pump and the solution heat exchanger. The generator also has a concentrated solution pipeline connected to the absorber via the solution heat exchanger. The generator has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector. The ejector also has a medium-pressure refrigerant vapor channel connected to the condenser. The condenser has a refrigerant liquid pipeline connected to the steam generator via the booster pump. The steam generator also has a high-pressure refrigerant vapor channel connected to the high-pressure steam inlet of the ejector. The condenser also... A refrigerant liquid pipeline connects to the evaporator via a throttling valve. The evaporator also has a refrigerant vapor passage connecting to the compressor. The compressor also has a refrigerant vapor passage connecting to the expander via a regenerator and a high-temperature heat exchanger. The second compressor also has a refrigerant vapor passage connecting to the expander via a high-temperature heat exchanger. The expander also has an intermediate extraction steam passage connecting to the second compressor via a regenerator. The expander also has a refrigerant vapor passage connecting to the absorber. The generator, steam generator, and high-temperature heat exchanger each have a high-temperature heat medium passage connecting to the outside. The absorber and condenser each have a heated medium passage connecting to the outside. The evaporator also has a low-temperature heat medium passage connecting to the outside. The expander connects to the compressor and the second compressor and transmits power, forming a first-type compression-ejection-absorption heat pump.

[0008] 2. The first type of compression-ejection-absorption heat pump is the first type of compression-ejection-absorption heat pump described in item 1, with the addition of a second generator, a second throttling valve, a second solution pump, and a second solution heat exchanger. The absorber is provided with a dilute solution pipeline connected to the second generator via the second solution pump and the second solution heat exchanger. The second generator also has a concentrated solution pipeline connected to the absorber via the second solution heat exchanger. The generator is adjusted so that it has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector. After the generator has a refrigerant vapor channel connected to the second generator, the second generator is further connected to the condenser or evaporator via the second throttling valve. The second generator also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector, thus forming the first type of compression-ejection-absorption heat pump.

[0009] 3. A first-type compression-ejection-absorption heat pump is constructed by adding a second generator, a second throttling valve, and a second solution heat exchanger to the first-type compression-ejection-absorption heat pump described in item 1. The absorber is connected to the generator via a dilute solution pipeline through a solution pump and a solution heat exchanger. The absorber is then connected to the generator via a dilute solution pipeline through a solution pump, a solution heat exchanger, and a second solution heat exchanger. The generator is connected to the absorber via a concentrated solution pipeline through a solution heat exchanger. The generator is then connected to the second generator via a concentrated solution pipeline through a second solution heat exchanger. The second generator is then connected to the absorber via a concentrated solution pipeline through a solution heat exchanger. The generator is connected to the low-pressure steam inlet of the ejector via a refrigerant vapor channel. The second generator is then connected to the condenser or evaporator via a refrigerant liquid pipeline through a second throttling valve. The second generator also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector, thus forming a first-type compression-ejection-absorption heat pump.

[0010] 4. A first-type compression-ejection-absorption heat pump is constructed by adding a second generator, a second throttling valve, a second solution pump, and a second solution heat exchanger to the first-type compression-ejection-absorption heat pump described in item 1. The absorber is connected to the generator via a dilute solution pipeline through the solution pump and solution heat exchanger; the absorber is then connected to the second generator via the same pipeline. The second generator is further connected to the generator via a concentrated solution pipeline through the second solution pump and second solution heat exchanger. The generator is then connected to the absorber via a concentrated solution pipeline through the solution heat exchanger; the generator is then connected to the absorber via the second solution heat exchanger and solution heat exchanger. The generator has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector; the generator has a refrigerant vapor channel connected to the second generator. The second generator then has a refrigerant liquid pipeline connected to the condenser or evaporator via the second throttling valve. The second generator also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector, thus forming a first-type compression-ejection-absorption heat pump.

[0011] 5. A first-type compression-ejection-absorption heat pump, comprising, in addition to the first-type compression-ejection-absorption heat pump described in item 1, a second generator, a second solution pump, a second solution heat exchanger, and a second absorber. The absorber is modified so that it has a dilute solution pipeline connected to the generator via the solution pump and solution heat exchanger, while the absorber has a dilute solution pipeline connected to the second absorber via the solution pump and solution heat exchanger. The second absorber also has a dilute solution pipeline connected to the generator via the second solution pump and second solution heat exchanger. The generator is modified so that it has a concentrated solution pipeline connected to the absorber via the solution heat exchanger, while the generator has a concentrated solution pipeline connected to the second generator via the second solution heat exchanger. The second generator also has a concentrated solution pipeline connected to the absorber via the solution heat exchanger. The second generator also has a refrigerant vapor channel connected to the second absorber and a high-temperature heat medium channel connected to the outside. The second absorber also has a heated medium channel connected to the outside, thus forming a first-type compression-ejection-absorption heat pump.

[0012] 6. A first-type compression-ejection-absorption heat pump is a first-type compression-ejection-absorption heat pump described in item 1, wherein a second generator, a second solution pump, a second solution heat exchanger, and a second absorber are added. The generator is modified so that it has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector, and the generator has a refrigerant vapor channel connected to the second absorber. The second absorber also has a dilute solution pipeline connected to the second generator via the second solution pump and the second solution heat exchanger. The second generator also has a concentrated solution pipeline connected to the second absorber via the second solution heat exchanger. The second generator also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector. The second generator also has a high-temperature heat medium channel connected to the outside. The second absorber also has a heated medium channel connected to the outside, thus forming a first-type compression-ejection-absorption heat pump.

[0013] 7. A first-type compression-ejection-absorption heat pump is constructed by adding a second generator, a second throttling valve, a second solution heat exchanger, a second ejector, and a second condenser to the first-type compression-ejection-absorption heat pump described in item 1. The absorber is modified so that it has a dilute solution pipeline connected to the generator via a solution pump and a solution heat exchanger, while the absorber has a dilute solution pipeline connected to the second generator via a solution pump, a solution heat exchanger, and a second solution heat exchanger. The second generator also has a concentrated solution pipeline connected to the generator via the second solution heat exchanger. The second generator also has a refrigerant vapor channel connected to the low-pressure steam inlet of the second ejector. The steam generator is further equipped with a high-pressure refrigerant vapor channel connected to the high-pressure steam inlet of the second ejector. The second ejector also has a medium-pressure refrigerant vapor channel connected to the second condenser. The second condenser also has a refrigerant liquid pipeline connected to the condenser or evaporator via a second throttling valve. The second generator also has a high-temperature heat medium channel connected to the outside, and the second condenser also has a heated medium channel connected to the outside, thus forming a first-type compression-ejection-absorption heat pump.

[0014] 8. A first-type compression-ejection-absorption heat pump is constructed by adding a second generator, a second throttling valve, a second solution pump, a second solution heat exchanger, a second ejector, and a second condenser to the first-type compression-ejection-absorption heat pump described in item 1. The generator is modified so that its concentrated solution pipeline connects to the absorber via the solution heat exchanger; instead, the generator has a concentrated solution pipeline connected to the second generator via the second solution pump and the second solution heat exchanger. The second generator also has a concentrated solution pipeline connected to the absorber via the second solution heat exchanger and the solution heat exchanger. The second generator also has a refrigerant vapor channel connected to the low-pressure steam inlet of the second ejector. The steam generator is further equipped with a high-pressure refrigerant vapor channel connected to the high-pressure steam inlet of the second ejector. The second ejector also has a medium-pressure refrigerant vapor channel connected to the second condenser. The second condenser also has a refrigerant liquid pipeline connected to the condenser or evaporator via the second throttling valve. The second generator also has a high-temperature heat medium channel connected to the outside, and the second condenser also has a heated medium channel connected to the outside, thus forming a first-type compression-ejection-absorption heat pump.

[0015] 9. A first-type compression-ejection-absorption heat pump is formed by adding a two-phase expander to any of the first-type compression-ejection-absorption heat pumps described in items 1 and 5-6, replacing the throttle valve, with the two-phase expander connected to the compressor and transmitting power, thus forming a first-type compression-ejection-absorption heat pump.

[0016] 10. A first-type compression-ejection-absorption heat pump is formed by adding a nozzle and replacing the throttle valve, and adding a dual-energy compressor and replacing the compressor in any of the first-type compression-ejection-absorption heat pumps described in items 1 and 5-6.

[0017] 11. A first-type compression-ejection-absorption heat pump is formed by adding a nozzle and replacing the throttle valve, adding a dual-energy compressor and replacing the compressor, and adding a second nozzle and replacing the second throttle valve in any of the first-type compression-ejection-absorption heat pumps described in items 2-4 and 7-8.

[0018] 12. A first-type compression-ejection-absorption heat pump is formed by eliminating the high-temperature heat medium channel connecting the generator to the outside in any of the first-type compression-ejection-absorption heat pumps described in items 1-11, and by adding a liquid circulating medium channel to the generator and connecting it to the steam generator, and then having a gaseous circulating medium channel connecting the steam generator to the generator, thus forming a first-type compression-ejection-absorption heat pump; wherein, a circulation pump may be added to the liquid circulating medium channel between the generator and the steam generator. Attached image description:

[0019] Figure 1 This is a schematic diagram of the first type of compression-ejection-absorption heat pump structure and process provided by the present invention.

[0020] Figure 2 This is a schematic diagram of the second structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0021] Figure 3 This is a schematic diagram of the third structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0022] Figure 4 This is a schematic diagram of the fourth structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0023] Figure 5 This is a schematic diagram of the fifth structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0024] Figure 6 This is a schematic diagram of the sixth structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0025] Figure 7 This is a schematic diagram of the seventh structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0026] Figure 8 This is a schematic diagram of the eighth structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0027] Figure 9 This is a schematic diagram of the ninth structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0028] Figure 10 This is a schematic diagram of the tenth structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0029] Figure 11 This is a schematic diagram of the 11th structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0030] Figure 12 This is a schematic diagram of the 12th structure and process of the first type of compression-ejection-absorption heat pump provided by the present invention.

[0031] In the diagram, 1-Absorber, 2-Solution pump, 3-Solution heat exchanger, 4-Generator, 5-Ejector, 6-Condenser, 7-Boost pump, 8-Steam generator, 9-Throttle valve, 10-Evaporator, 11-Compressor, 12-Regenerator, 13-High-temperature heat exchanger, 14-Expander, 15-Second compressor, 16-Second generator, 17-Second throttle valve, 18-Second solution pump, 19-Second solution heat exchanger, 20-Second absorber, 21-Second ejector, 22-Second condenser, 23-Two-phase expander, 24-Nozzle, 25-Dual-energy compressor, 26-Second nozzle. Detailed implementation method:

[0032] First, it should be noted that the structure and process are not repeated unless necessary; obvious processes are not described. The invention will now be described in detail with reference to the accompanying drawings and examples.

[0033] Figure 1 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0034] (1) Structurally, it mainly consists of an absorber, a solution pump, a solution heat exchanger, a generator, an ejector, a condenser, a booster pump, a steam generator, a throttle valve, an evaporator, a compressor, a regenerator, a high-temperature heat exchanger, an expander, and a second compressor; the absorber 1 has a dilute solution pipeline connected to the generator 4 via the solution pump 2 and the solution heat exchanger 3; the generator 4 also has a concentrated solution pipeline connected to the absorber 1 via the solution heat exchanger 3; the generator 4 also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector 5; the ejector 5 also has a medium-pressure refrigerant vapor channel connected to the condenser 6; the condenser 6 also has a refrigerant liquid pipeline connected to the steam generator 8 via the booster pump 7; the steam generator 8 also has a high-pressure refrigerant vapor channel connected to the high-pressure steam inlet of the ejector 5; and the condenser 6 also has a refrigerant liquid pipeline connected to the throttle valve. 9 is connected to evaporator 10. Evaporator 10 also has a refrigerant vapor passage connected to compressor 11. Compressor 11 also has a refrigerant vapor passage connected to expander 14 via regenerator 12 and high-temperature heat exchanger 13. Second compressor 15 also has a refrigerant vapor passage connected to expander 14 via high-temperature heat exchanger 13. Expander 14 also has an intermediate extraction steam passage connected to second compressor 15 via regenerator 12. Expander 14 also has a refrigerant vapor passage connected to absorber 1. Generator 4, steam generator 8 and high-temperature heat exchanger 13 also have high-temperature heat medium passages connected to the outside. Absorber 1 and condenser 6 also have heated medium passages connected to the outside. Evaporator 10 also has a low-temperature heat medium passage connected to the outside. Expander 14 is connected to compressor 11 and second compressor 15 and transmits power.

[0035] (2) In terms of process, the dilute solution of absorber 1 enters generator 4 through solution pump 2 and solution heat exchanger 3. The high-temperature heat medium flows through generator 4, heats the solution inside, releases refrigerant vapor, and supplies it to ejector 5. The concentrated solution of generator 4 enters absorber 1 through solution heat exchanger 3, absorbs refrigerant vapor, and releases heat to the heated medium. The refrigerant vapor entering condenser 6 releases heat to the heated medium and becomes condensate. The refrigerant liquid in condenser 6 is divided into two paths - the first path flows through throttling valve 9 and enters evaporator 10 to absorb heat. The first stream of refrigerant vapor is supplied to compressor 11. The second stream flows through booster pump 7, where it is pressurized and then enters steam generator 8 to absorb heat and vaporize, providing it to ejector 5 as driving steam (working steam). The working steam enters ejector 5, flows through nozzles to decrease pressure and increase speed, forming a low-pressure system. The refrigerant vapor generated by generator 4 is drawn into the low-pressure zone of ejector 5. After the two streams of steam mix, they flow through diffuser to decrease speed and increase pressure, forming medium-pressure steam, which is then supplied to condenser 6. The refrigerant vapor discharged from evaporator 10 flows through compressor 11 to increase pressure and temperature, and then flows through regenerator. The refrigerant vapor discharged from the second compressor 15 gradually absorbs heat and rises in temperature through the high-temperature heat exchanger 13, and is then supplied to the expander 14. The refrigerant vapor enters the expander 14 to reduce pressure and do work. After reaching a certain level, it splits into two paths: the first path flows through the regenerator 12 to release heat and cool down before entering the second compressor 15 to increase pressure and temperature, and the second path continues to reduce pressure and do work before being supplied to the absorber 1. The high-temperature heat medium provides the driving heat load through the generator 4, the steam generator 8, and the high-temperature heat exchanger 13. The heated medium obtains the heating load through the absorber 1 and the condenser 6. The low-temperature heat medium provides the low-temperature heat load through the evaporator 10. The mechanical energy output by the expander 14 is supplied to the compressor 11 and the second compressor 15 as power, or the mechanical energy output by the expander 14 is supplied to the compressor 11, the second compressor 15, and the outside as power, or the expander 14 and the outside jointly provide power to the compressor 11 and the second compressor 15, forming a first type of compression-ejection-absorption heat pump.

[0036] Figure 2 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0037] (1) Structurally, in Figure 1In the first type of compression-ejection-absorption heat pump shown, a second generator, a second throttle valve, a second solution pump, and a second solution heat exchanger are added. The absorber 1 is provided with a dilute solution pipeline that connects to the second generator 16 via the second solution pump 18 and the second solution heat exchanger 19. The second generator 16 also has a concentrated solution pipeline that connects to the absorber 1 via the second solution heat exchanger 19. The generator 4 is adjusted so that it has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector 5. After the generator 4 has a refrigerant vapor channel connected to the second generator 16, the second generator 16 has a refrigerant liquid pipeline that connects to the evaporator 10 via the second throttle valve 17. The second generator 16 also has a refrigerant vapor channel that connects to the low-pressure steam inlet of the ejector 5.

[0038] (2) In terms of process, with Figure 1 Compared to the first type of compression-ejection-absorption heat pump shown, the difference is that: the refrigerant vapor generated by generator 4 is provided to the second generator 16 as the driving heat medium; part of the dilute solution of absorber 1 enters the second generator 16 via the second solution pump 18 and the second solution heat exchanger 19; the refrigerant vapor flows through the second generator 16, heats the solution inside, releases refrigerant vapor, and is supplied to ejector 5; the concentrated solution of the second generator 16 enters the absorber 1 via the second solution heat exchanger 19; the refrigerant vapor flowing through the second generator 16 releases heat to become refrigerant liquid, and then enters the evaporator 10 through the second throttling valve 17, thus forming the first type of compression-ejection-absorption heat pump.

[0039] Figure 3 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0040] (1) Structurally, in Figure 1 In the first type of compression-ejection-absorption heat pump shown, a second generator, a second throttling valve, and a second solution heat exchanger are added. The absorber 1 is connected to the generator 4 via a dilute solution pipeline through the solution pump 2 and the solution heat exchanger 3. The absorber 1 is then connected to the generator 4 via a dilute solution pipeline through the solution pump 2, the solution heat exchanger 3, and the second solution heat exchanger 19. The generator 4 is connected to the absorber 1 via a concentrated solution pipeline through the solution heat exchanger 3. The generator 4 is then connected to the second generator 16 via the second solution heat exchanger 19. The second generator 16 is then connected to the absorber 1 via a concentrated solution pipeline through the solution heat exchanger 3. The generator 4 is then connected to the low-pressure steam inlet of the ejector 5 via a refrigerant vapor channel. The generator 4 is then connected to the second generator 16 via a refrigerant vapor channel. The second generator 16 is then connected to the condenser 6 via a refrigerant liquid pipeline through the second throttling valve 17. The second generator 16 is also connected to the low-pressure steam inlet of the ejector 5 via a refrigerant vapor channel.

[0041] (2) In terms of process, with Figure 1Compared to the first type of compression-ejection-absorption heat pump shown, the difference is that: the refrigerant vapor generated by generator 4 is provided to the second generator 16 as the driving heat medium; the dilute solution of absorber 1 enters generator 4 via solution pump 2, solution heat exchanger 3, and second solution heat exchanger 19; the concentrated solution of generator 4 enters the second generator 16 via the second solution heat exchanger 19; the refrigerant vapor flows through the second generator 16, heats the solution inside, releases refrigerant vapor, and is supplied to ejector 5; the concentrated solution of the second generator 16 enters absorber 1 via solution heat exchanger 3; the refrigerant vapor flowing through the second generator 16 releases heat to become refrigerant liquid and then enters condenser 6 via the second throttling valve 17, thus forming the first type of compression-ejection-absorption heat pump.

[0042] Figure 4 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0043] (1) Structurally, in Figure 1 In the first type of compression-ejection-absorption heat pump shown, a second generator, a second throttle valve, a second solution pump, and a second solution heat exchanger are added. The absorber 1 is connected to the generator 4 via a dilute solution pipeline through the solution pump 2 and the solution heat exchanger 3. The absorber 1 is then connected to the second generator 16 via a dilute solution pipeline through the solution pump 2 and the solution heat exchanger 3. The second generator 16 is then connected to the generator 4 via a concentrated solution pipeline through the second solution pump 18 and the second solution heat exchanger 19. The generator 4 is then connected to the absorber 1 via a concentrated solution pipeline through the solution heat exchanger 3. The generator 4 is then connected to the absorber 1 via a concentrated solution pipeline through the second solution heat exchanger 19 and the solution heat exchanger 3. The generator 4 is then connected to the low-pressure steam inlet of the ejector 5 via a refrigerant vapor channel. The generator 4 is then connected to the second generator 16 via a refrigerant liquid pipeline through the second throttle valve 17. The second generator 16 also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector 5.

[0044] (2) In terms of process, with Figure 1 Compared to the first type of compression-ejection-absorption heat pump shown, the difference is that: the refrigerant vapor generated by generator 4 is provided to the second generator 16 as the driving heat medium; the dilute solution of absorber 1 enters the second generator 16 via solution pump 2 and solution heat exchanger 3; the refrigerant vapor flows through the second generator 16, heats the solution inside, releases refrigerant vapor, and is supplied to ejector 5; the concentrated solution of the second generator 16 enters generator 4 via second solution pump 18 and second solution heat exchanger 19; the concentrated solution of generator 4 enters absorber 1 via second solution heat exchanger 19 and solution heat exchanger 3; the refrigerant vapor flowing through the second generator 16 releases heat to become refrigerant liquid and then enters condenser 6 via second throttling valve 17, thus forming the first type of compression-ejection-absorption heat pump.

[0045] Figure 5 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0046] (1) Structurally, in Figure 1 In the first type of compression-ejection-absorption heat pump shown, a second generator, a second solution pump, a second solution heat exchanger, and a second absorber are added. The absorber 1 is adjusted so that it has a dilute solution pipeline connected to the generator 4 via the solution pump 2 and the solution heat exchanger 3, and is connected to the second absorber 20 via the solution pump 2 and the solution heat exchanger 3. The second absorber 20 also has a dilute solution pipeline connected to the generator 4 via the second solution pump 18 and the second solution heat exchanger 19. The generator 4 is adjusted so that it has a concentrated solution pipeline connected to the absorber 1 via the solution heat exchanger 3, and is connected to the second generator 16 via the second solution heat exchanger 19. The second generator 16 also has a concentrated solution pipeline connected to the absorber 1 via the solution heat exchanger 3. The second generator 16 also has a refrigerant vapor channel connected to the second absorber 20, a high-temperature heat medium channel connected to the outside, and the second absorber 20 also has a heated medium channel connected to the outside.

[0047] (2) In terms of process, with Figure 1 Compared to the first type of compression-ejection-absorption heat pump shown, the difference is that: the dilute solution of absorber 1 enters the second absorber 20 via solution pump 2 and solution heat exchanger 3, absorbs refrigerant vapor and releases heat to the heated medium; the dilute solution of the second absorber 20 enters the generator 4 via the second solution pump 18 and the second solution heat exchanger 19; the concentrated solution of the generator 4 enters the second generator 16 via the second solution heat exchanger 19; the high-temperature heat medium flows through the second generator 16, heats the solution entering it, releases refrigerant vapor and supplies it to the second absorber 20; the concentrated solution of the second generator 16 enters the absorber 1 via solution heat exchanger 3, thus forming the first type of compression-ejection-absorption heat pump.

[0048] Figure 6 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0049] (1) Structurally, in Figure 1In the first type of compression-ejection-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 connected to the low-pressure steam inlet of the ejector 5 is connected to the second absorber 20. The second absorber 20 also has a dilute solution pipeline connected to the second generator 16 via the second solution pump 18 and the second solution heat exchanger 19. The second generator 16 also has a concentrated solution pipeline connected to the second absorber 20 via the second solution heat exchanger 19. The second generator 16 also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector 5. The second generator 16 also has a high-temperature heat medium channel connected to the outside. The second absorber 20 also has a heated medium channel connected to the outside.

[0050] (2) In terms of process, with Figure 1 Compared to the first type of compression-ejection-absorption heat pump shown, the difference is that: the refrigerant vapor generated by the generator 4 enters the second absorber 20, the dilute solution of the second absorber 20 enters the second generator 16 via the second solution pump 18 and the second solution heat exchanger 19, the high-temperature heat medium flows through the second generator 16, heats the solution inside, releases refrigerant vapor and supplies it to the ejector 5, the concentrated solution of the second generator 16 enters the second absorber 20 via the second solution heat exchanger 19, absorbs the refrigerant vapor and releases heat to the heated medium, thus forming the first type of compression-ejection-absorption heat pump.

[0051] Figure 7 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0052] (1) Structurally, in Figure 1 In the first type of compression-ejection-absorption heat pump shown, a second generator, a second throttling valve, a second solution heat exchanger, a second ejector, and a second condenser are added. The absorber 1 is adjusted so that the dilute solution pipeline connected to the generator 4 via the solution pump 2 and the solution heat exchanger 3 is connected to the second generator 16 via the solution pump 2, the solution heat exchanger 3, and the second solution heat exchanger 19. The second generator 16 then has a concentrated solution pipeline connected to the generator 4 via the second solution heat exchanger 19. The second generator 16 also has a refrigerant vapor channel connected to the low-pressure steam inlet of the second ejector 21. The steam generator 8 is equipped with a high-pressure refrigerant vapor channel connected to the high-pressure steam inlet of the second ejector 21. The second ejector 21 also has a medium-pressure refrigerant vapor channel connected to the second condenser 22. The second condenser 22 also has a refrigerant liquid pipeline connected to the condenser 6 via the second throttling valve 17. The second generator 16 also has a high-temperature heat medium channel connected to the outside, and the second condenser 22 also has a heated medium channel connected to the outside.

[0053] (2) In terms of process, with Figure 1Compared to the first type of compression-ejection-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 19 into second generator 16. The high-temperature heat medium flows through second generator 16, heating the solution inside and releasing refrigerant vapor. The concentrated solution of second generator 16 flows through second solution heat exchanger 19 into generator 4. Steam generator 8 provides working steam to second ejector 21. The working steam enters second ejector 21, flows through nozzles to reduce pressure and increase speed, and forms a low pressure. The refrigerant vapor discharged from second generator 16 is drawn into the low-pressure zone of second ejector 21. After the two steam streams mix, they flow through diffuser to reduce speed and increase pressure, forming medium-pressure steam, which is then supplied to second condenser 22. The refrigerant vapor in second condenser 22 releases heat to the heated medium to form refrigerant liquid. The refrigerant liquid discharged from second condenser 22 flows through second throttle valve 17 to reduce pressure and temperature, and then is supplied to condenser 6, forming the first type of compression-ejection-absorption heat pump.

[0054] Figure 8 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0055] (1) Structurally, in Figure 1 In the first type of compression-ejection-absorption heat pump shown, a second generator, a second throttle valve, a second solution pump, a second solution heat exchanger, a second ejector, and a second condenser are added. The generator 4, which has a concentrated solution pipeline connected to the absorber 1 via the solution heat exchanger 3, is adjusted so that the generator 4 has a concentrated solution pipeline connected to the second generator 16 via the second solution pump 18 and the second solution heat exchanger 19. The second generator 16 also has a concentrated solution pipeline connected to the absorber 1 via the second solution heat exchanger 19 and the solution heat exchanger 3. The second generator 16 also has a refrigerant vapor channel connected to the low-pressure steam inlet of the second ejector 21. The steam generator 8 is equipped with a high-pressure refrigerant vapor channel connected to the high-pressure steam inlet of the second ejector 21. The second ejector 21 also has a medium-pressure refrigerant vapor channel connected to the second condenser 22. The second condenser 22 also has a refrigerant liquid pipeline connected to the condenser 6 via the second throttle valve 17. The second generator 16 also has a high-temperature heat medium channel connected to the outside, and the second condenser 22 also has a heated medium channel connected to the outside.

[0056] (2) In terms of process, with Figure 1Compared to the first type of compression-ejection-absorption heat pump shown, the difference lies in the following: the concentrated solution of generator 4 flows through the second solution pump 18 and the second solution heat exchanger 19 into the second generator 16. The high-temperature heat medium flows through the second generator 16, heating the solution inside and releasing refrigerant vapor. The concentrated solution of the second generator 16 flows through the second solution heat exchanger 19 and the solution heat exchanger 3 into the absorber 1. Steam generator 8 provides working steam to the second ejector 21. The working steam enters the second ejector 21, flows through the nozzle to reduce pressure and increase speed, and forms a low pressure. The refrigerant vapor discharged from the second generator 16 is drawn into the low-pressure area of ​​the second ejector 21. After the two steam streams mix, they flow through the diffuser to reduce speed and increase pressure, forming medium-pressure steam, which is then supplied to the second condenser 22. The refrigerant vapor in the second condenser 22 releases heat to the heated medium to form a refrigerant liquid. The refrigerant liquid discharged from the second condenser 22 flows through the second throttle valve 17 to reduce pressure and temperature, and then is supplied to the condenser 6, forming the first type of compression-ejection-absorption heat pump.

[0057] Figure 9 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0058] (1) Structurally, in Figure 1 In the first type of compression-ejection-absorption heat pump shown, a two-phase expander 23 is added and replaces the throttle valve 9. The two-phase expander 23 is connected to the compressor 5 and transmits power.

[0059] (2) In terms of process, with Figure 1 Compared to the first type of compression-ejection-absorption heat pump shown, the difference is that the refrigerant liquid in the condenser 6 is divided into two paths: the first path is supplied to the steam generator 8 through the booster pump 7, and the second path flows through the two-phase expander 23 to reduce pressure and do work before being supplied to the evaporator 10; the mechanical energy output by the two-phase expander 23 is supplied to the compressor 11 to provide power, thus forming the first type of compression-ejection-absorption heat pump.

[0060] Figure 10 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0061] (1) Structurally, in Figure 1 In the first type of compression-ejection-absorption heat pump shown, a nozzle 24 is added and replaces the throttle valve 9, and a dual-energy compressor 25 is added and replaces the compressor 11.

[0062] (2) In terms of process, with Figure 1 Compared to the first type of compression-ejection-absorption heat pump shown, the difference is that the refrigerant liquid in the condenser 6 is divided into two paths: the first path is supplied to the steam generator 8 through the booster pump 7, and the second path flows through the nozzle 24 to reduce pressure and increase speed, flows through the evaporator 10 to absorb heat and vaporize, and then enters the dual-energy compressor 25 to increase pressure and temperature and reduce speed, thus forming the first type of compression-ejection-absorption heat pump.

[0063] Figure 11 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0064] (1) Structurally, in Figure 3 In the first type of compression-ejection-absorption heat pump shown, a nozzle 24 is added and replaces the throttle valve 9, a dual-energy compressor 25 is added and replaces the compressor 11, and a second nozzle 26 is added and replaces the second throttle valve 17.

[0065] (2) In terms of process, with Figure 3 Compared to the first type of compression-ejection-absorption heat pump shown, the difference is that: the refrigerant liquid discharged from the second generator 16 flows through the second nozzle 26 to reduce pressure and increase speed, and then enters the condenser 6 and releases heat; part of the refrigerant liquid discharged from the condenser 6 is depressurized and increased speed through the nozzle 24, flows through the evaporator 10 to absorb heat and vaporize, and then enters the dual-energy compressor 25 to increase pressure and temperature and decrease speed, thus forming the first type of compression-ejection-absorption heat pump.

[0066] Figure 12 The first type of compression-ejection-absorption heat pump shown is implemented as follows:

[0067] (1) Structurally, in Figure 1 In the first type of compression-ejection-absorption heat pump shown, the high-temperature heat medium channel connecting the generator 4 to the outside is removed. The generator 4 is then connected to the steam generator 8 by adding a liquid circulating medium channel. The steam generator 8 is then connected to the generator 4 by a gaseous circulating medium channel.

[0068] (2) In terms of process, with Figure 1 Compared to the first type of compression-ejection-absorption heat pump shown, the difference is that: the liquid circulating medium discharged from the generator 4 enters the steam generator 8 through natural convection, absorbs heat and vaporizes into a gaseous circulating medium, which is then provided to the generator 4 as the driving heat medium; the gaseous circulating medium flows through the generator 4, heats the solution inside it, releases refrigerant vapor and provides it to the ejector 5; after the gaseous circulating medium condenses, it enters the steam generator 8 through natural convection, forming the first type of compression-ejection-absorption heat pump.

[0069] The effects achievable by this invention—the first type of compression-ejection-absorption heat pump proposed in this invention has the following effects and advantages:

[0070] (1) A new technology for driving or combining thermal energy and mechanical energy to drive refrigeration / heating has been proposed, which has good adaptability to driving energy and enriches refrigeration / heating technology.

[0071] (2) Thermal energy-driven combined cooling and heating, combined cooling and power, combined heating and power or combined cooling / heating / power technologies are proposed, which have a wide range of energy supply and can meet different types of energy demand.

[0072] (3) Effectively improve the working parameters of refrigerant vapor, significantly expand the range of heat pump working parameters, realize large temperature span heating and heat supply, and expand the application scope and application value of heat pump technology.

[0073] (4) It can reduce the maximum pressure and maximum temperature of the refrigerant vapor pressurization system, or reduce the temperature change range of the gas pressurization system during heat absorption, thereby improving the working conditions of the compressor and expander, and reducing the requirements for heat source temperature.

[0074] (5) The performance index is variable and corresponds to the change of thermodynamic parameters, so as to realize the scientific utilization of driving energy and low temperature heat resources.

[0075] (6) Using high-temperature thermal energy to meet the pressure requirements of refrigerant steam is beneficial to improving the rational utilization level of high-temperature driving heat.

[0076] (7) The heat recovery method is flexible, the heat recovery range is controllable, and the adaptability is strong, which helps to reduce the irreversible loss of systemic temperature difference.

[0077] (8) The process is reasonable and the performance index is reasonable; the structure is simple and the manufacturing cost is reduced.

[0078] (9) The ejector is simple to manufacture, durable, and has little irreversible loss, which is beneficial to improving the performance index of the heat pump.

[0079] (10) It can significantly increase the heating temperature, making up for the shortcomings of absorption heat pump technology and effectively avoiding the conflict between the driving heat medium parameters and the solution performance.

[0080] (11) It provides a variety of specific technical solutions, which can cope with many different actual situations and have a wide range of applications, which is conducive to expanding the application scope and value of the first type of compression-ejection-absorption heat pump technology.

Claims

1. The first type of compression-ejection-absorption heat pump is mainly composed of an absorber, a solution pump, a solution heat exchanger, a generator, an ejector, a condenser, a booster pump, a steam generator, a throttle valve, an evaporator, a compressor, a regenerator, a high-temperature heat exchanger, an expander and a second compressor; the absorber (1) has a dilute solution pipeline connected to the generator (4) through the solution pump (2) and the solution heat exchanger (3), the generator (4) also has a concentrated solution pipeline connected to the absorber (1) through the solution heat exchanger (3), the generator (4) also has a refrigerant vapor passage connected to the low-pressure steam inlet of the ejector (5), the ejector (5) also has a medium-pressure refrigerant vapor passage connected to the condenser (6), the condenser (6) also has a refrigerant liquid pipeline connected to the steam generator (8) through the booster pump (7), the steam generator (8) also has a high-pressure refrigerant vapor passage connected to the high-pressure steam inlet of the ejector (5), the condenser (6) also has a refrigerant liquid pipeline connected to the evaporator (10) through the throttle valve (9), the evaporator (10) also has a refrigerant vapor passage connected to the compressor (11), the compressor (11) also has a refrigerant vapor passage connected to the expander (14) through the regenerator (12) and the high-temperature heat exchanger (13), the second compressor (15) also has a refrigerant vapor passage connected to the expander (14) through the high-temperature heat exchanger (13), the expander (14) also has an intermediate steam passage connected to the second compressor (15) through the regenerator (12), the expander (14) also has a refrigerant vapor passage connected to the absorber (1), the generator (4), the steam generator (8) and the high-temperature heat exchanger (13) also have high-temperature heat medium passages connected to the outside, respectively, the absorber (1) and the condenser (6) also have heated medium passages connected to the outside, respectively, the evaporator (10) also has a low-temperature heat medium passage connected to the outside, the expander (14) is connected to the compressor (11) and the second compressor (15) and transmits power, forming the first type of compression-ejection-absorption heat pump.

2. The first type of compression-ejection-absorption heat pump is the first type of compression-ejection-absorption heat pump in claim 1, 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 connected to the second generator (16) through the second solution pump (18) and the second solution heat exchanger (19), the second generator (16) also has a concentrated solution pipeline connected to the absorber (1) through the second solution heat exchanger (19), the refrigerant vapor passage of the generator (4) connected to the low-pressure steam inlet of the ejector (5) is adjusted to the refrigerant vapor passage of the generator (4) connected to the second generator (16), and then the second generator (16) has a refrigerant liquid pipeline connected to the condenser (6) or the evaporator (10) through the second throttle valve (17), the second generator (16) also has a refrigerant vapor passage connected to the low-pressure steam inlet of the ejector (5), forming the first type of compression-ejection-absorption heat pump.

3. The first type compression-ejection-absorption heat pump is in the first type compression-ejection-absorption heat pump of claim 1, increase second generator, second throttle valve and second solution heat exchanger, adjust the communication of the weak solution pipeline of absorber (1) through solution pump (2) and solution heat exchanger (3) and generator (4) to the communication of the weak solution pipeline of absorber (1) through solution pump (2), solution heat exchanger (3) and second solution heat exchanger (19) and generator (4), adjust the communication of the strong solution pipeline of generator (4) through solution heat exchanger (3) and absorber (1) to the communication of the strong solution pipeline of generator (4) through second solution heat exchanger (19) and second generator (16), the second generator (16) again has the communication of the strong solution pipeline and absorber (1) through solution heat exchanger (3), adjust the communication of the refrigerant steam passage of generator (4) and the low pressure steam inlet of ejector (5) to the communication of the refrigerant steam passage of generator (4) and second generator (16) after second generator (16) again has the communication of the refrigerant liquid pipeline and condenser (6) or evaporator (10) through second throttle valve (17), second generator (16) again has the communication of the refrigerant steam passage and the low pressure steam inlet of ejector (5), form the first type compression-ejection-absorption heat pump.

4. The first type compression-ejection-absorption heat pump is in the first type compression-ejection-absorption heat pump of claim 1, increase second generator, second throttle valve, second solution pump and second solution heat exchanger, adjust the communication of the weak solution pipeline of absorber (1) through solution pump (2) and solution heat exchanger (3) and generator (4) to the communication of the weak solution pipeline of absorber (1) through solution pump (2) and solution heat exchanger (3) and second generator (16), the second generator (16) again has the communication of the strong solution pipeline and generator (4) through second solution pump (18) and second solution heat exchanger (19), adjust the communication of the strong solution pipeline of generator (4) through solution heat exchanger (3) and absorber (1) to the communication of the strong solution pipeline of generator (4) through second solution heat exchanger (19) and solution heat exchanger (3) and absorber (1), adjust the communication of the refrigerant steam passage of generator (4) and the low pressure steam inlet of ejector (5) to the communication of the refrigerant steam passage of generator (4) and second generator (16) after second generator (16) again has the communication of the refrigerant liquid pipeline and condenser (6) or evaporator (10) through second throttle valve (17), second generator (16) again has the communication of the refrigerant steam passage and the low pressure steam inlet of ejector (5), form the first type compression-ejection-absorption heat pump.

5. The first type of compression-ejection-absorption heat pump is the first type of compression-ejection-absorption heat pump in claim 1, 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), which is adjusted to the dilute solution line of the absorber (1) connected to the second absorber (20) through the solution pump (2) and the solution heat exchanger (3), the second absorber (20) also has a dilute solution line connected to the generator (4) through the second solution pump (18) and the second solution heat exchanger (19), the concentrated solution line of the generator (4) is connected to the absorber (1) through the solution heat exchanger (3), which is adjusted to the concentrated solution line of the generator (4) connected to the second generator (16) through the second solution heat exchanger (19), the second generator (16) also has a concentrated solution line connected to the absorber (1) through the solution heat exchanger (3), the second generator (16) also has a refrigerant vapor passage connected to the second absorber (20), the second generator (16) also has a high-temperature heat medium passage connected to the outside, and the second absorber (20) also has a heated medium passage connected to the outside, forming the first type of compression-ejection-absorption heat pump.

6. The first type of compression-ejection-absorption heat pump is the first type of compression-ejection-absorption heat pump in claim 1, 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), which is adjusted to the dilute solution line of the absorber (1) connected to the second absorber (20) through the solution pump (2) and the solution heat exchanger (3), the second absorber (20) also has a dilute solution line connected to the second generator (16) through the second solution pump (18) and the second solution heat exchanger (19), the second generator (16) also has a concentrated solution line connected to the second absorber (20) through the second solution heat exchanger (19), the second generator (16) also has a refrigerant vapor passage connected to the low-pressure steam inlet of the ejector (5), the second generator (16) also has a high-temperature heat medium passage connected to the outside, and the second absorber (20) also has a heated medium passage connected to the outside, forming the first type of compression-ejection-absorption heat pump.

7. The first type of compression-ejection-absorption heat pump is in the first type of compression-ejection-absorption heat pump of claim 1, a second generator, a second throttling valve, a second solution heat exchanger, a second ejector and a second condenser are added, the communication of the dilute 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 communication of the dilute solution line of the absorber (1) to the second generator (16) through the solution pump (2), the solution heat exchanger (3) and the second solution heat exchanger (19), the second generator (16) has a concentrated solution line connected to the generator (4) through the second solution heat exchanger (19), the second generator (16) has a refrigerant vapor passage connected to the low pressure steam inlet of the second ejector (21), the steam generator (8) is provided with a high pressure refrigerant vapor passage connected to the high pressure steam inlet of the second ejector (21), the second ejector (21) has a medium pressure refrigerant vapor passage connected to the second condenser (22), the second condenser (22) has a refrigerant liquid line connected to the condenser (6) or the evaporator (10) through the second throttling valve (17), the second generator (16) has a high temperature heat medium passage connected to the outside, the second condenser (22) has a heated medium passage connected to the outside, forming the first type of compression-ejection-absorption heat pump.

8. The first type of compression-ejection-absorption heat pump is in the first type of compression-ejection-absorption heat pump of claim 1, a second generator, a second throttling valve, a second solution pump, a second solution heat exchanger, a second ejector and a second condenser are added, the communication of the concentrated solution line of the generator (4) to the absorber (1) through the solution heat exchanger (3) is adjusted to the communication of the concentrated solution line of the generator (4) to the second generator (16) through the second solution pump (18) and the second solution heat exchanger (19), the second generator (16) has a concentrated solution line connected to the absorber (1) through the second solution heat exchanger (19) and the solution heat exchanger (3), the second generator (16) has a refrigerant vapor passage connected to the low pressure steam inlet of the second ejector (21), the steam generator (8) is provided with a high pressure refrigerant vapor passage connected to the high pressure steam inlet of the second ejector (21), the second ejector (21) has a medium pressure refrigerant vapor passage connected to the second condenser (22), the second condenser (22) has a refrigerant liquid line connected to the condenser (6) or the evaporator (10) through the second throttling valve (17), the second generator (16) has a high temperature heat medium passage connected to the outside, the second condenser (22) has a heated medium passage connected to the outside, forming the first type of compression-ejection-absorption heat pump.

9. The first type of compression-ejection-absorption heat pump is in any one of the first type of compression-ejection-absorption heat pump of claims 1, 5-6, a two-phase expander (23) is added and replaces the throttling valve (9), the two-phase expander (23) is connected to the compressor (5) and transmits power, forming the first type of compression-ejection-absorption heat pump.

10. The first type of compression-ejection-absorption heat pump is in any one of the first type of compression-ejection-absorption heat pump in claims 1, 5-6, increase the nozzle (24) and replace the throttle valve (9), increase the dual-energy compressor (25) and replace the compressor (11), form the first type of compression-ejection-absorption heat pump.

11. The first type of compression-ejection-absorption heat pump is in any one of the first type of compression-ejection-absorption heat pump in claims 2-4, 7-8, increase the nozzle (24) and replace the throttle valve (9), increase the dual-energy compressor (25) and replace the compressor (11), increase the second nozzle (26) and replace the second throttle valve (17), form the first type of compression-ejection-absorption heat pump.

12. The first type of compression-ejection-absorption heat pump is in any one of the first type of compression-ejection-absorption heat pump described in claims 1-11, cancel the high temperature heat medium passage of the generator (4) and the external communication, the generator (4) is added liquid circulating medium passage and the steam generator (8) is communicated, and then the steam generator (8) has gaseous circulating medium passage and the generator (4) is communicated, forming the first type of compression-ejection-absorption heat pump; wherein, Or add a circulating pump on the liquid circulating medium channel between the generator (4) and the steam generator (8).

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