Second-type injection-absorption heat pump

Abstract

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

Description

Technical fields:

[0001] This invention belongs to the field of 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] The ejector itself is a 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 loads - for heat pump systems, this is conducive to improving the rationalization of the driving heat load input link and expanding the utilization range of heat pump technology for high temperature heat loads.

[0004] The second type of absorption heat pump technology has the advantages of low manufacturing cost and direct application of medium-temperature heat energy; however, its operating range and application fields are greatly limited by the properties of the solution and refrigerant medium.

[0005] Based on the principles of simple, proactive, and efficient utilization of thermal energy for heating, this invention proposes a second type of jet-absorption heat pump with a reasonable process, simple structure, low cost, wide operating range, and rationalized performance index, achieving technological integration. Summary of the Invention:

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

[0007] 1. The second type of jet-absorption heat pump mainly consists of a generator, a solution pump, a solution heat exchanger, an absorber, a condenser, a low-pressure pump, an evaporator, a high-pressure pump, a steam generator, and an ejector. The generator has a concentrated solution pipeline connected to the absorber via the solution pump and the solution heat exchanger. The absorber also has a dilute solution pipeline connected to the generator via the solution heat exchanger. The generator also has a refrigerant vapor channel connected to the condenser. The condenser also has a refrigerant liquid pipeline connected to the evaporator via the low-pressure pump. The evaporator also has a refrigerant liquid pipeline connected to the steam generator via the high-pressure pump. The evaporator also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector. The steam generator also has a refrigerant vapor channel connected to the high-pressure steam inlet of the ejector. The ejector also has a medium-pressure refrigerant vapor channel connected to the absorber. The generator and evaporator also have medium-temperature heat medium channels connected to the outside. The absorber also has a heated medium channel connected to the outside. The condenser also has a cooling medium channel connected to the outside. The steam generator also has a high-temperature heat medium channel connected to the outside, thus forming the second type of jet-absorption heat pump.

[0008] 2. The second type of jet-absorption heat pump mainly consists of a generator, a solution pump, a solution heat exchanger, an absorber, a condenser, a low-pressure pump, an evaporator, a high-pressure pump, a steam generator, an ejector, a second absorber, a second solution pump, a second generator, and a second solution heat exchanger. The generator has a concentrated solution pipeline connected to the absorber via the solution pump and the solution heat exchanger. The absorber also has a dilute solution pipeline connected to the second absorber via the solution heat exchanger. 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 has a concentrated solution pipeline connected to the generator via the second solution heat exchanger. The generator also has a refrigerant vapor channel connected to the second absorber. There is also a refrigerant vapor channel connected to the condenser. The condenser also has a refrigerant liquid pipeline connected to the evaporator via a low-pressure pump and a second absorber. The evaporator also has a refrigerant liquid pipeline connected to the steam generator via a high-pressure pump. The evaporator also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector. The steam generator also has a refrigerant vapor channel connected to the high-pressure steam inlet of the ejector. The ejector also has a medium-pressure refrigerant vapor channel connected to the absorber. The second generator, the generator, and the evaporator also have medium-temperature heat medium channels connected to the outside. The absorber also has a heated medium channel connected to the outside. The condenser also has a cooling medium channel connected to the outside. The steam generator also has a high-temperature heat medium channel connected to the outside, forming a second type of jet-absorption heat pump.

[0009] 3. The second type of jet-absorption heat pump mainly consists of a generator, a solution pump, a solution heat exchanger, an absorber, a condenser, a low-pressure pump, an evaporator, a high-pressure pump, a steam generator, an ejector, a second absorber, a second solution pump, a second generator, and a second solution heat exchanger. The generator has a concentrated solution pipeline connected to the absorber via the solution pump and the solution heat exchanger. The absorber also has a dilute solution pipeline connected to the second absorber via the solution heat exchanger and the second solution heat exchanger. 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 has a concentrated solution pipeline connected to the generator and a refrigerant vapor channel connected to the second absorber. There is also a refrigerant vapor channel connected to the condenser. The condenser also has a refrigerant liquid pipeline connected to the evaporator via a low-pressure pump and a second absorber. The evaporator also has a refrigerant liquid pipeline connected to the steam generator via a high-pressure pump. The evaporator also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector. The steam generator also has a refrigerant vapor channel connected to the high-pressure steam inlet of the ejector. The ejector also has a medium-pressure refrigerant vapor channel connected to the absorber. The second generator, the generator, and the evaporator also have medium-temperature heat medium channels connected to the outside. The absorber also has a heated medium channel connected to the outside. The condenser also has a cooling medium channel connected to the outside. The steam generator also has a high-temperature heat medium channel connected to the outside, forming a second type of jet-absorption heat pump.

[0010] 4. The second type of jet-absorption heat pump is the second type of jet-absorption heat pump described in item 3, with the addition of a solution throttling valve, and the connection between the concentrated solution pipeline of the second generator and the generator is adjusted so that the concentrated solution pipeline of the second generator is connected to the generator through the solution throttling valve, thus forming the second type of jet-absorption heat pump.

[0011] 5. A second type of jet-absorption heat pump is a second type of jet-absorption heat pump described in item 1, which is further modified by adding a second absorber, a second solution pump, a second solution heat exchanger, and a second generator. The generator is modified so that it has a refrigerant vapor channel connected to the condenser and 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 condenser and a medium-temperature heat medium channel connected to the outside. The second absorber also has a cooling medium channel connected to the outside, thus forming a second type of jet-absorption heat pump.

[0012] 6. A second type of jet-absorption heat pump is formed by adding a third absorber, a third solution pump, a third solution heat exchanger, and a third generator to any of the second type of jet-absorption heat pumps described in items 2-4. The second generator is modified so that it has a refrigerant vapor channel connected to the condenser and is connected to the third absorber. The third absorber also has a dilute solution pipeline connected to the third generator via the third solution pump and the third solution heat exchanger. The third generator also has a concentrated solution pipeline connected to the third absorber via the third solution heat exchanger. The third generator also has a refrigerant vapor channel connected to the condenser. The third generator also has a medium-temperature heat medium channel connected to the outside. The third absorber also has a cooling medium channel connected to the outside, thus forming a second type of jet-absorption heat pump.

[0013] 7. The second type of jet-absorption heat pump is formed by eliminating the steam generator and its high-temperature heat medium channel connected to the outside in any of the second type of jet-absorption heat pumps described in items 1-6, eliminating the refrigerant vapor channel connecting the steam generator and the ejector, adding an external working steam channel connecting to the high-pressure steam inlet of the ejector, eliminating the high-pressure pump, eliminating the refrigerant liquid pipeline connecting the evaporator to the steam generator via the high-pressure pump; adding a refrigerant liquid pipeline to the condenser to connect to the outside, or retaining the high-pressure pump and adding a refrigerant liquid pipeline to the condenser to connect to the outside via the high-pressure pump, thus forming the second type of jet-absorption heat pump. Attached image description:

[0014] Figure 1 This is a schematic diagram of the first principle thermodynamic system of the second type of jet-absorption heat pump provided by the present invention.

[0015] Figure 2This is a second principle thermodynamic system diagram of a second type of jet-absorption heat pump provided by the present invention.

[0016] Figure 3 This is a schematic diagram of the third principle thermodynamic system of the second type of jet-absorption heat pump provided by the present invention.

[0017] Figure 4 This is a fourth principle thermodynamic system diagram of the second type of jet-absorption heat pump provided by the present invention.

[0018] Figure 5 This is a fifth principle thermodynamic system diagram of the second type of jet-absorption heat pump provided by the present invention.

[0019] Figure 6 This is a schematic diagram of the sixth principle thermodynamic system of the second type of jet-absorption heat pump provided by the present invention.

[0020] Figure 7 This is a schematic diagram of the seventh principle thermodynamic system of the second type of jet-absorption heat pump provided by the present invention.

[0021] In the diagram, 1-generator, 2-solution pump, 3-solution heat exchanger, 4-absorber, 5-condenser, 6-low-pressure pump, 7-evaporator, 8-high-pressure pump, 9-steam generator, 10-ejector, 11-second absorber, 12-second solution pump, 13-second generator, 14-second solution heat exchanger, 15-solution throttling valve, 16-third absorber, 17-third solution pump, 18-third solution heat exchanger, 19-third generator. Detailed implementation method:

[0022] The present invention will now be described in detail with reference to the accompanying drawings and examples. In the specific examples, structures and processes will not be repeated unless necessary, and processes will not be described where they are obvious or where other embodiments are available for reference.

[0023] Figure 1 The second type of jet-absorption heat pump shown is implemented as follows:

[0024] (1) Structurally, it mainly consists of a generator, a solution pump, a solution heat exchanger, an absorber, a condenser, a low-pressure pump, an evaporator, a high-pressure pump, a steam generator, and an ejector; the generator 1 has a concentrated solution pipeline connected to the absorber 4 via the solution pump 2 and the solution heat exchanger 3; the absorber 4 also has a dilute solution pipeline connected to the generator 1 via the solution heat exchanger 3; the generator 1 also has a refrigerant vapor channel connected to the condenser 5; the condenser 5 also has a refrigerant liquid pipeline connected to the evaporator 7 via the low-pressure pump 6; the evaporator 7 also has a refrigerant liquid pipeline connected to the high-pressure pump 6. The pressure pump 8 is connected to the steam generator 9. The evaporator 7 also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector 10. The steam generator 9 also has a refrigerant vapor channel connected to the high-pressure steam inlet of the ejector 10. The ejector 10 also has a medium-pressure refrigerant vapor channel connected to the absorber 4. The generator 1 and the evaporator 7 also have medium-temperature heat medium channels connected to the outside. The absorber 4 also has a heated medium channel connected to the outside. The condenser 5 also has a cooling medium channel connected to the outside. The steam generator 9 also has a high-temperature heat medium channel connected to the outside.

[0025] (2) In terms of process, the concentrated solution of generator 1 enters absorber 4 through solution pump 2 and solution heat exchanger 3, absorbs refrigerant vapor and releases heat to the heated medium. The dilute solution of absorber 4 enters generator 1 through solution heat exchanger 3. The medium-temperature hot medium flows through generator 1, heats the solution inside, releases refrigerant vapor, and supplies it to condenser 5. The refrigerant vapor in condenser 5 releases heat to the cooling medium to form refrigerant liquid. The refrigerant liquid in condenser 5 is pressurized by low-pressure pump 6 and then enters evaporator 7 to absorb heat, heat up, and partially vaporize. The refrigerant vapor generated by evaporator 7 is supplied to ejector 10. The refrigerant liquid in evaporator 7 is pressurized by high-pressure pump 8 and then enters steam generator 9. The high-temperature hot medium flows through steam generator 9, heats the solution inside, and then enters evaporator 10. The refrigerant liquid inside is heated and vaporized. The refrigerant steam generated by the steam generator 9 is provided to the ejector 10 as working steam. The working steam enters the ejector 10, flows through the nozzle to reduce pressure and increase speed, and forms a low pressure. The refrigerant steam generated by the evaporator 7 is drawn into the low-pressure zone of the ejector 10. After the two steams are mixed, they flow through the diffuser to reduce speed and increase pressure to form medium-pressure steam and are supplied to the absorber 4. The high-temperature heat medium provides high-temperature driving heat load through the steam generator 9, the heated medium obtains heating load through the absorber 4, the medium-temperature heat medium provides driving heat load and heating heat load through the generator 1 and the evaporator 7, and the cooling medium carries away the low-temperature discharge heat load through the condenser 5, forming a second type of jet-absorption heat pump.

[0026] Figure 2 The second type of jet-absorption heat pump shown is implemented as follows:

[0027] (1) Structurally, it mainly consists of a generator, a solution pump, a solution heat exchanger, an absorber, a condenser, a low-pressure pump, an evaporator, a high-pressure pump, a steam generator, an ejector, a second absorber, a second solution pump, a second generator, and a second solution heat exchanger; the generator 1 has a concentrated solution pipeline connected to the absorber 4 via the solution pump 2 and the solution heat exchanger 3; the absorber 4 also has a dilute solution pipeline connected to the second absorber 11 via the solution heat exchanger 3; the second absorber 11 also has a dilute solution pipeline connected to the second generator 13 via the second solution pump 12 and the second solution heat exchanger 14; the second generator 13 has a concentrated solution pipeline connected to the generator 1 via the second solution heat exchanger 14; the generator 1 also has a refrigerant vapor channel connected to the second absorber 11; the second... Generator 13 also has a refrigerant vapor channel connected to condenser 5. Condenser 5 also has a refrigerant liquid pipeline connected to evaporator 7 via low-pressure pump 6 and second absorber 11. Evaporator 7 also has a refrigerant liquid pipeline connected to steam generator 9 via high-pressure pump 8. Evaporator 7 also has a refrigerant vapor channel connected to the low-pressure steam inlet of ejector 10. Steam generator 9 also has a refrigerant vapor channel connected to the high-pressure steam inlet of ejector 10. Ejector 10 also has a medium-pressure refrigerant vapor channel connected to absorber 4. Second generator 13, generator 1 and evaporator 7 also have medium-temperature heat medium channels connected to the outside. Absorber 4 also has a heated medium channel connected to the outside. Condenser 5 also has a cooling medium channel connected to the outside. Steam generator 9 also has a high-temperature heat medium channel connected to the outside.

[0028] (2) In terms of process, the concentrated solution of generator 1 enters absorber 4 through solution pump 2 and solution heat exchanger 3, absorbs refrigerant vapor and releases heat to the heated medium. The dilute solution of absorber 4 enters second absorber 11 through solution heat exchanger 3, absorbs refrigerant vapor and releases heat. The dilute solution of second absorber 11 enters second generator 13 through second solution pump 12 and second solution heat exchanger 14. The medium-temperature hot medium flows through second generator 13, heats the solution entering it, releases refrigerant vapor and supplies it to condenser 5. The concentrated solution of second generator 13 enters generator 1 through second solution heat exchanger 14. The medium-temperature hot medium flows through generator 1, heats the solution entering it, releases refrigerant vapor and supplies it to second absorber 11. The refrigerant vapor of condenser 5 releases heat to the cooling medium to form refrigerant liquid. The refrigerant liquid of condenser 5 flows through low-pressure pump 6 to increase pressure, flows through second absorber 11 and absorbs heat, and then enters evaporator 7 to absorb heat and partially vaporize. In the process of heat pump evaporator 7, the refrigerant vapor generated by evaporator 7 is supplied to ejector 10. The refrigerant liquid in evaporator 7 is pressurized by high-pressure pump 8 and then enters steam generator 9. The high-temperature heat medium flows through steam generator 9, heating the refrigerant liquid inside and causing it to heat up and vaporize. The refrigerant vapor generated by steam generator 9 is supplied to ejector 10 as working steam. The working steam enters ejector 10, flows through nozzles to reduce pressure and increase speed, and forms a low-pressure system. The refrigerant vapor generated by evaporator 7 is drawn into the low-pressure zone of ejector 10. After the two steam streams are mixed, they flow through diffuser to reduce speed and increase pressure, forming medium-pressure steam, which is then supplied to absorber 4. The high-temperature heat medium provides high-temperature driving heat load through steam generator 9, and the heated medium obtains heating load through absorber 4. The medium-temperature heat medium provides driving heat load and heating heat load through generator 1, evaporator 7 and second generator 13. The cooling medium carries away the low-temperature discharge heat load through condenser 5, forming a second type of jet-absorption heat pump.

[0029] Figure 3 The second type of jet-absorption heat pump shown is implemented as follows:

[0030] (1) Structurally, it mainly consists of a generator, a solution pump, a solution heat exchanger, an absorber, a condenser, a low-pressure pump, an evaporator, a high-pressure pump, a steam generator, an ejector, a second absorber, a second solution pump, a second generator, and a second solution heat exchanger; the generator 1 has a concentrated solution pipeline connected to the absorber 4 via the solution pump 2 and the solution heat exchanger 3; the absorber 4 also has a dilute solution pipeline connected to the second absorber 11 via the solution heat exchanger 3 and the second solution heat exchanger 14; the second absorber 11 also has a dilute solution pipeline connected to the second generator 13 via the second solution pump 12 and the second solution heat exchanger 14; the second generator 13 has a concentrated solution pipeline connected to the generator 1; the generator 1 also has a refrigerant vapor channel connected to the second absorber 11; the second... Generator 13 also has a refrigerant vapor channel connected to condenser 5. Condenser 5 also has a refrigerant liquid pipeline connected to evaporator 7 via low-pressure pump 6 and second absorber 11. Evaporator 7 also has a refrigerant liquid pipeline connected to steam generator 9 via high-pressure pump 8. Evaporator 7 also has a refrigerant vapor channel connected to the low-pressure steam inlet of ejector 10. Steam generator 9 also has a refrigerant vapor channel connected to the high-pressure steam inlet of ejector 10. Ejector 10 also has a medium-pressure refrigerant vapor channel connected to absorber 4. Second generator 13, generator 1 and evaporator 7 also have medium-temperature heat medium channels connected to the outside. Absorber 4 also has a heated medium channel connected to the outside. Condenser 5 also has a cooling medium channel connected to the outside. Steam generator 9 also has a high-temperature heat medium channel connected to the outside.

[0031] (2) In terms of process, the concentrated solution of generator 1 enters absorber 4 through solution pump 2 and solution heat exchanger 3, absorbs refrigerant vapor and releases heat to the heated medium. The dilute solution of absorber 4 enters second absorber 11 through solution heat exchanger 3 and second solution heat exchanger 14, absorbs refrigerant vapor and releases heat. The dilute solution of second absorber 11 enters second generator 13 through second solution pump 12 and second solution heat exchanger 14. The medium-temperature hot medium flows through second generator 13, heats the solution entering it, releases refrigerant vapor and supplies it to condenser 5. The concentrated solution of second generator 13 enters generator 1. The medium-temperature hot medium flows through generator 1, heats the solution entering it, releases refrigerant vapor and supplies it to second absorber 11. The refrigerant vapor of condenser 5 releases heat to the cooling medium to form refrigerant liquid. The refrigerant liquid of condenser 5 flows through low-pressure pump 6 to increase pressure, flows through second absorber 11 and absorbs heat, and then enters evaporator 7 to absorb heat and partially vaporize. In the process of heat pump evaporator 7, the refrigerant vapor generated by evaporator 7 is supplied to ejector 10. The refrigerant liquid in evaporator 7 is pressurized by high-pressure pump 8 and then enters steam generator 9. The high-temperature heat medium flows through steam generator 9, heating the refrigerant liquid inside and causing it to heat up and vaporize. The refrigerant vapor generated by steam generator 9 is supplied to ejector 10 as working steam. The working steam enters ejector 10, flows through nozzles to reduce pressure and increase speed, and forms a low-pressure system. The refrigerant vapor generated by evaporator 7 is drawn into the low-pressure zone of ejector 10. After the two steam streams are mixed, they flow through diffuser to reduce speed and increase pressure, forming medium-pressure steam, which is then supplied to absorber 4. The high-temperature heat medium provides high-temperature driving heat load through steam generator 9, and the heated medium obtains heating load through absorber 4. The medium-temperature heat medium provides driving heat load and heating heat load through generator 1, evaporator 7 and second generator 13. The cooling medium carries away the low-temperature discharge heat load through condenser 5, forming a second type of jet-absorption heat pump.

[0032] Figure 4 The second type of jet-absorption heat pump shown is implemented as follows:

[0033] (1) Structurally, in Figure 3 In the second type of jet-absorption heat pump shown, a solution throttling valve 15 is added to connect the concentrated solution pipeline of the second generator 13 to the generator 1, so that the concentrated solution pipeline of the second generator 13 is connected to the generator 1 through the solution throttling valve 15.

[0034] (2) In terms of process, with Figure 3 Compared to the second type of jet-absorption heat pump shown, the difference is that the concentrated solution of the second generator 13 flows through the solution throttling valve 15 to reduce pressure and temperature, and then enters the generator 1 to absorb heat and vaporize, forming the second type of jet-absorption heat pump.

[0035] Figure 5 The second type of jet-absorption heat pump shown is implemented as follows:

[0036] (1) Structurally, in Figure 1 In the second type of jet-absorption heat pump shown, a second absorber, a second solution pump, a second solution heat exchanger, and a second generator are added. The generator 1, which has a refrigerant vapor channel connected to the condenser 5, is adjusted to have a refrigerant vapor channel connected to the second absorber 11. The second absorber 11 also has a dilute solution pipeline connected to the second generator 13 via the second solution pump 12 and the second solution heat exchanger 14. The second generator 13 also has a concentrated solution pipeline connected to the second absorber 11 via the second solution heat exchanger 14. The second generator 13 also has a refrigerant vapor channel connected to the condenser 5 and a medium-temperature heat medium channel connected to the outside. The second absorber 11 also has a cooling medium channel connected to the outside.

[0037] (2) In terms of process, with Figure 1 Compared to the second type of jet-absorption heat pump shown, the difference is that: the refrigerant vapor released by the generator 1 enters the second absorber 11, the dilute solution of the second absorber 11 enters the second generator 13 via the second solution pump 12 and the second solution heat exchanger 14, the medium-temperature heat medium flows through the second generator 13, heats the solution entering it, releases refrigerant vapor, and supplies it to the condenser 5, the concentrated solution of the second generator 13 enters the second absorber 11 via the second solution heat exchanger 14, absorbs the refrigerant vapor and releases heat to the cooling medium, thus forming the second type of jet-absorption heat pump.

[0038] Figure 6 The second type of jet-absorption heat pump shown is implemented as follows:

[0039] (1) Structurally, in Figure 2 In the second type of jet-absorption heat pump shown, a third absorber, a third solution pump, a third solution heat exchanger, and a third generator are added. The second generator 13 is adjusted so that it has a refrigerant vapor channel connected to the condenser 5 and is connected to the third absorber 16. The third absorber 16 also has a dilute solution pipeline connected to the third generator 19 via the third solution pump 17 and the third solution heat exchanger 18. The third generator 19 also has a concentrated solution pipeline connected to the third absorber 16 via the third solution heat exchanger 18. The third generator 19 also has a refrigerant vapor channel connected to the condenser 5 and a medium-temperature heat medium channel connected to the outside. The third absorber 16 also has a cooling medium channel connected to the outside.

[0040] (2) In terms of process, with Figure 2Compared to the second type of jet-absorption heat pump shown, the difference is that: the refrigerant vapor released by the second generator 13 enters the third absorber 16, the dilute solution in the third absorber 16 enters the third generator 19 via the third solution pump 17 and the third solution heat exchanger 18, the medium-temperature heat medium flows through the third generator 19, heats the solution inside it to release refrigerant vapor and supplies it to the condenser 5, and the concentrated solution in the third generator 19 enters the third absorber 16 via the third solution heat exchanger 18, absorbs the refrigerant vapor and releases heat to the cooling medium, thus forming the second type of jet-absorption heat pump.

[0041] Figure 7 The second type of jet-absorption heat pump shown is implemented as follows:

[0042] (1) Structurally, in Figure 1 In the second type of jet-absorption heat pump shown, the steam generator 9 and its high-temperature heat medium channel connected to the outside are eliminated, the refrigerant steam channel connecting the steam generator 9 and the ejector 10 is eliminated, and an external working steam channel is added to connect to the high-pressure steam inlet of the ejector 10. The refrigerant liquid pipeline connecting the evaporator 7 to the steam generator 9 via the high-pressure pump 8 is eliminated; the condenser 5 is added with a refrigerant liquid pipeline connected to the outside via the high-pressure pump 8.

[0043] (2) In terms of process, with Figure 1 Compared to the second type of jet-absorption heat pump shown, the difference is that: working steam is supplied to the ejector 10 from the outside, and the refrigerant liquid in the condenser 5 is divided into two paths - the first path is pressurized by the low-pressure pump 6 and then enters the evaporator 7 to absorb heat, heat up and vaporize, and the second path flows through the high-pressure pump 8 to be pressurized and then discharged to the outside, thus forming the second type of jet-absorption heat pump.

[0044] The effects achievable by this invention—the second type of jet-absorption heat pump proposed in this invention has the following effects and advantages:

[0045] (1) A new technology for heat pump technology driven by thermal energy was proposed, which enriched the heat pump technology.

[0046] (2) Effectively improves the working parameters of refrigerant vapor, significantly expands the range of heat pump working parameters, and is conducive to achieving large temperature rise heating.

[0047] (3) The process is reasonable and the performance index is reasonable.

[0048] (4) Simple structure, reducing manufacturing costs.

[0049] (5) It is conducive to the effective utilization of heat energy of different grades and to reducing the irreversible loss of systemic temperature difference.

[0050] (6) The ejector is simple to manufacture, durable, and has little irreversible loss, which is conducive to the rationalization of the heat pump performance index.

[0051] (7) It can significantly increase the heating temperature, making up for the shortcomings of absorption heat pump technology and effectively avoiding the conflict between the parameters of medium-temperature heat medium and the properties of the solution.

[0052] (8) It provides a variety of specific technical solutions, which can cope with many different actual situations and has a wide range of applications, which is conducive to expanding the application scope and value of jet-absorption heat pump technology.

Claims

1. The second type of jet-absorption heat pump mainly consists of a generator, a solution pump, a solution heat exchanger, an absorber, a condenser, a low-pressure pump, an evaporator, a high-pressure pump, a steam generator, and an ejector; the generator (1) has a concentrated solution pipeline connected to the absorber (4) via the solution pump (2) and the solution heat exchanger (3), the absorber (4) also has a dilute solution pipeline connected to the generator (1) via the solution heat exchanger (3), the generator (1) also has a refrigerant vapor channel connected to the condenser (5), the condenser (5) also has a refrigerant liquid pipeline connected to the evaporator (7) via the low-pressure pump (6), and the evaporator (7) also has a refrigerant liquid pipeline connected to the high-pressure pump (8) via the high-pressure pump (9) The evaporator (7) is connected to the steam generator (9), and the evaporator (7) also has a refrigerant steam channel connected to the low-pressure steam inlet of the ejector (10). The steam generator (9) also has a refrigerant steam channel connected to the high-pressure steam inlet of the ejector (10). The ejector (10) also has a medium-pressure refrigerant steam channel connected to the absorber (4). The generator (1) and the evaporator (7) also have medium-temperature heat medium channels connected to the outside. The absorber (4) also has a heated medium channel connected to the outside. The condenser (5) also has a cooling medium channel connected to the outside. The steam generator (9) also has a high-temperature heat medium channel connected to the outside, forming a second type of jet-absorption heat pump.

2. The second type of jet-absorption heat pump mainly consists of a generator, a solution pump, a solution heat exchanger, an absorber, a condenser, a low-pressure pump, an evaporator, a high-pressure pump, a steam generator, an ejector, a second absorber, a second solution pump, a second generator, and a second solution heat exchanger. The generator (1) has a concentrated solution pipeline connected to the absorber (4) via the solution pump (2) and the solution heat exchanger (3). The absorber (4) also has a dilute solution pipeline connected to the second absorber (11) via the solution heat exchanger (3). The second absorber (11) also has a dilute solution pipeline connected to the second generator (13) via the second solution pump (12) and the second solution heat exchanger (14). The second generator (13) has a concentrated solution pipeline connected to the generator (1) via the second solution heat exchanger (14). The generator (1) also has a refrigerant vapor channel connected to the second absorber (11). The second generator (13) also has... The refrigerant vapor channel is connected to the condenser (5). The condenser (5) also has a refrigerant liquid pipeline connected to the evaporator (7) via the low-pressure pump (6) and the second absorber (11). The evaporator (7) also has a refrigerant liquid pipeline connected to the steam generator (9) via the high-pressure pump (8). The evaporator (7) also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector (10). The steam generator (9) also has a refrigerant vapor channel connected to the high-pressure steam inlet of the ejector (10). The ejector (10) also has a medium-pressure refrigerant vapor channel connected to the absorber (4). The second generator (13), the generator (1), and the evaporator (7) also have medium-temperature heat medium channels connected to the outside. The absorber (4) also has a heated medium channel connected to the outside. The condenser (5) also has a cooling medium channel connected to the outside. The steam generator (9) also has a high-temperature heat medium channel connected to the outside, forming a second type of jet-absorption heat pump.

3. The second type of jet-absorption heat pump mainly consists of a generator, a solution pump, a solution heat exchanger, an absorber, a condenser, a low-pressure pump, an evaporator, a high-pressure pump, a steam generator, an ejector, a second absorber, a second solution pump, a second generator, and a second solution heat exchanger. The generator (1) has a concentrated solution pipeline connected to the absorber (4) via the solution pump (2) and the solution heat exchanger (3). The absorber (4) also has a dilute solution pipeline connected to the second absorber (11) via the solution heat exchanger (3) and the second solution heat exchanger (14). The second absorber (11) also has a dilute solution pipeline connected to the second generator (13) via the second solution pump (12) and the second solution heat exchanger (14). The second generator (13) has a concentrated solution pipeline connected to the generator (1). The generator (1) also has a refrigerant vapor channel connected to the second absorber (11). The second generator (13) also has... The refrigerant vapor channel is connected to the condenser (5). The condenser (5) also has a refrigerant liquid pipeline connected to the evaporator (7) via the low-pressure pump (6) and the second absorber (11). The evaporator (7) also has a refrigerant liquid pipeline connected to the steam generator (9) via the high-pressure pump (8). The evaporator (7) also has a refrigerant vapor channel connected to the low-pressure steam inlet of the ejector (10). The steam generator (9) also has a refrigerant vapor channel connected to the high-pressure steam inlet of the ejector (10). The ejector (10) also has a medium-pressure refrigerant vapor channel connected to the absorber (4). The second generator (13), the generator (1), and the evaporator (7) also have medium-temperature heat medium channels connected to the outside. The absorber (4) also has a heated medium channel connected to the outside. The condenser (5) also has a cooling medium channel connected to the outside. The steam generator (9) also has a high-temperature heat medium channel connected to the outside, forming a second type of jet-absorption heat pump.

4. The second type of jet-absorption heat pump is the second type of jet-absorption heat pump described in claim 3, in which a solution throttling valve (15) is added, and the connection between the concentrated solution pipeline of the second generator (13) and the generator (1) is adjusted so that the concentrated solution pipeline of the second generator (13) is connected to the generator (1) through the solution throttling valve (15), thus forming the second type of jet-absorption heat pump.

5. The second type of jet-absorption heat pump is the second type of jet-absorption heat pump described in claim 1, with the addition of a second absorber, a second solution pump, a second solution heat exchanger, and a second generator. The generator (1) is adjusted so that the refrigerant vapor channel is connected to the condenser (5) and the generator (1) is connected to the second absorber (11). The second absorber (11) also has a dilute solution pipeline connected to the second generator (13) via the second solution pump (12) and the second solution heat exchanger (14). The second generator (13) also has a concentrated solution pipeline connected to the second absorber (11) via the second solution heat exchanger (14). The second generator (13) also has a refrigerant vapor channel connected to the condenser (5). The second generator (13) also has a medium-temperature heat medium channel connected to the outside. The second absorber (11) also has a cooling medium channel connected to the outside, thus forming the second type of jet-absorption heat pump.

6. A second type of jet-absorption heat pump is a second type of jet-absorption heat pump according to any one of claims 2-4, wherein a third absorber, a third solution pump, a third solution heat exchanger and a third generator are added. The second generator (13) is adjusted to have a refrigerant vapor channel connected to the condenser (5) and the second generator (13) has a refrigerant vapor channel connected to the third absorber (16). The third absorber (16) also has a dilute solution pipeline connected to the third generator (19) via the third solution pump (17) and the third solution heat exchanger (18). The third generator (19) also has a concentrated solution pipeline connected to the third absorber (16) via the third solution heat exchanger (18). The third generator (19) also has a refrigerant vapor channel connected to the condenser (5). The third generator (19) also has a medium-temperature heat medium channel connected to the outside. The third absorber (16) also has a cooling medium channel connected to the outside, thus forming a second type of jet-absorption heat pump.

7. The second type of jet-absorption heat pump is formed by eliminating the steam generator (9) and its high-temperature heat medium channel connected to the outside in any of the second type of jet-absorption heat pumps described in claims 1-6, eliminating the refrigerant steam channel connecting the steam generator (9) and the ejector (10), adding an external working steam channel to connect the high-pressure steam inlet of the ejector (10), eliminating the high-pressure pump (8), eliminating the refrigerant liquid pipeline connecting the evaporator (7) to the steam generator (9) via the high-pressure pump (8); adding a refrigerant liquid pipeline to the condenser (5) to connect to the outside, or retaining the high-pressure pump (8) and the condenser (5) to add a refrigerant liquid pipeline to connect to the outside via the high-pressure pump (8), thus forming the second type of jet-absorption heat pump.

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