Fourth type injection-absorption type steam generation system

Abstract

The invention provides a fourth-class injection-absorption type steam generation system, and belongs to the technical field of heat pumps. The low-temperature generator is communicated with the high-temperature generator through the solution pump, the solution heat exchanger and the second solution heat exchanger, the high-temperature generator is communicated with the absorber through the second solution heat exchanger, the absorber is communicated with the low-temperature generator through the solution heat exchanger, the low-temperature generator is communicated with the evaporator through the low-temperature condenser and the low-pressure pump, and the high-temperature generator is communicated with the high-temperature condenser. A high-temperature condenser is communicated with an evaporator through a low-temperature generator and a throttling valve, the evaporator is communicated with an absorber, a liquid medium pipeline is arranged outside to be communicated with a high-pressure steam inlet of an ejector through a high-pressure pump and a steam generator, and a heated medium channel is arranged outside to be communicated with a low-pressure steam inlet of the ejector through the absorber and the high-temperature condenser. The ejector communicates with the outside through a user steam channel, and the high-temperature generator, the steam generator, the evaporator and the low-temperature condenser communicate with the outside through heat source medium channels correspondingly, so that a fourth-class ejection-absorption type steam generation system is formed.

Description

Technical fields:

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

[0002] People's lives and production processes require steam with different parameters. Using heat pump technology to provide steam is an important means to achieve efficient and high-value energy utilization. In practical applications, the operating parameters, performance index, manufacturing cost, adaptability, and utilization level of heat resources of heat pumps need to be comprehensively considered.

[0003] An ejector is a pressure-boosting component that effectively utilizes high-temperature heat resources. It has the advantages of simple structure, reliable operation, low investment and long service life. In addition, compared with compressors, ejectors are more adaptable to the compression of wet steam.

[0004] Absorption heat pump technology has the advantages of low cost and direct use of thermal energy as driving energy; however, when users need higher pressure steam, its steam production capacity is limited by the properties of the solution, refrigerant medium and heat source.

[0005] Based on the principles of simplicity, initiative, safety, and high efficiency in energy utilization for heating, this invention proposes a fourth type of jet-absorption steam generation system that integrates technologies, has a reasonable process, a simple structure, low manufacturing cost, and achieves rationalized performance index. Summary of the Invention:

[0006] The main objective of this invention is to provide a fourth type of jet-absorption steam generation system, the specific contents of which are described below:

[0007] 1. The fourth type of jet-absorption steam generation system mainly consists of a low-temperature generator, a solution pump, a solution heat exchanger, a second solution heat exchanger, a high-temperature generator, an absorber, a low-temperature condenser, a low-pressure pump, an evaporator, a high-temperature condenser, a throttling valve, a high-pressure pump, a steam generator, and an ejector. The low-temperature generator has a concentrated solution pipeline connected to the high-temperature generator via the solution pump, the solution heat exchanger, and the second solution heat exchanger. The high-temperature generator also has a concentrated solution pipeline connected to the absorber via the second solution heat exchanger. The absorber also has a dilute solution pipeline connected to the low-temperature generator via the solution heat exchanger. The low-temperature generator also has a refrigerant vapor channel connected to the low-temperature condenser. The low-temperature condenser also has a condensate pipeline connected to the evaporator via the low-pressure pump. The high-temperature generator also has… The refrigerant vapor passage is connected to the high-temperature condenser. The high-temperature condenser also has a condensate pipeline that connects to the evaporator via a low-temperature generator and a throttling valve. The evaporator also has a refrigerant vapor passage that connects to the absorber. An external liquid medium pipeline connects to the steam generator via a high-pressure pump. The steam generator also has a working steam passage that connects to the high-pressure steam inlet of the ejector. An external heated medium passage connects to the low-pressure steam inlet of the ejector after passing through the absorber and the high-temperature condenser. The ejector also has a user steam passage that connects to the outside. The high-temperature generator and the steam generator also have high-temperature heat medium passages that connect to the outside. The low-temperature condenser also has a cooling medium passage that connects to the outside. The evaporator also has a low-temperature heat medium passage that connects to the outside, forming the fourth type of jet-absorption steam generation system.

[0008] 2. The fourth type of jet-absorption steam generation system is the fourth type of jet-absorption steam generation system described in item 1, in which the high-pressure pump and the external liquid medium pipeline connected to the steam generator via the high-pressure pump are eliminated, the steam generator and the heated medium channel connected to the outside and the working steam channel connected to the high-pressure steam inlet of the ejector are eliminated, and an external working steam channel connected to the high-pressure steam inlet of the ejector is added to form the fourth type of jet-absorption steam generation system.

[0009] 3. The fourth type of jet-absorption steam generation system is the fourth type of jet-absorption steam generation system described in item 1 or 2, wherein the low-temperature generator has a concentrated solution pipeline connected to the high-temperature generator via a solution pump, a solution heat exchanger, and a second solution heat exchanger, and the connection is adjusted so that the low-temperature generator has a concentrated solution pipeline connected to the absorber via a second solution pump and a second solution heat exchanger, and the absorber has a dilute solution pipeline connected to the high-temperature generator via a solution pump and a solution heat exchanger. The high-temperature generator has a concentrated solution pipeline connected to the absorber via a second solution heat exchanger, and the connection is adjusted so that the high-temperature generator has a concentrated solution pipeline connected to the low-temperature generator via a solution heat exchanger and a second solution heat exchanger, thus forming the fourth type of jet-absorption steam generation system.

[0010] 4. A fourth type of jet-absorption steam generation system, which is an improvement upon the fourth type of jet-absorption steam generation system described in item 1 or 2, wherein the low-temperature generator has a concentrated solution pipeline connected to the high-temperature generator via a solution pump, a solution heat exchanger, and a second solution heat exchanger. The low-temperature generator has a concentrated solution pipeline connected to the absorber via a second solution pump and a solution heat exchanger. The absorber also has a dilute solution pipeline connected to the second absorber via a solution heat exchanger. The second absorber then has a dilute solution pipeline connected to the high-temperature generator via a solution pump and a second solution heat exchanger. This process converts the high-temperature generator into a high-temperature steam generator. The concentrated solution pipeline of the generator is connected to the absorber via the second solution heat exchanger. The concentrated solution pipeline of the generator is connected to the low-temperature generator via the second solution heat exchanger. The low-temperature condenser and the low-pressure pump are eliminated. The low-temperature condenser and its external cooling medium channel and the condensate pipeline connected to the evaporator via the low-pressure pump are also eliminated. The low-temperature generator is connected to the low-temperature condenser via a refrigerant vapor channel. The low-temperature generator is connected to the second absorber via a refrigerant vapor channel. The second absorber also has a cooling medium channel connected to the outside, forming a fourth type of jet-absorption steam generation system.

[0011] 5. The fourth type of jet-absorption steam generation system is formed by adding a compressor to any of the fourth type of jet-absorption steam generation systems described in items 1-4, and adjusting the connection between the refrigerant vapor passage of the high-temperature generator and the high-temperature condenser to be such that the refrigerant vapor passage of the high-temperature generator is connected to the high-temperature condenser via the compressor, thus forming the fourth type of jet-absorption steam generation system.

[0012] 6. The fourth type of jet-absorption steam generation system is formed by adding a compressor to any of the fourth type of jet-absorption steam generation systems described in items 1-4, and adjusting the connection between the refrigerant vapor passage of the evaporator and the absorber to be such that the refrigerant vapor passage of the evaporator is connected to the absorber via the compressor, thus forming the fourth type of jet-absorption steam generation system.

[0013] 7. The fourth type of jet-absorption steam generation system is formed by adding a two-phase expander and replacing the throttle valve to any of the fourth type of jet-absorption steam generation systems described in items 1-6, thus forming the fourth type of jet-absorption steam generation system.

[0014] 8. The fourth type of jet-absorption steam generation system is formed by adding a nozzle and replacing the throttle valve in any of the fourth type of jet-absorption steam generation systems described in items 1-5, adding a diffuser tube, and adjusting the connection between the refrigerant vapor passage of the evaporator and the absorber to be such that the refrigerant vapor passage of the evaporator is connected to the absorber via the diffuser tube, thus forming the fourth type of jet-absorption steam generation system.

[0015] 9. The fourth type of jet-absorption steam generation system is formed by adding a nozzle and replacing the throttle valve in any of the fourth type of jet-absorption steam generation systems described in items 1-5, adding a dual-energy compressor, and adjusting the connection between the refrigerant vapor passage of the evaporator and the absorber to be such that the refrigerant vapor passage of the evaporator is connected to the absorber via the dual-energy compressor, thus forming the fourth type of jet-absorption steam generation system.

[0016] 10. The fourth type of jet-absorption steam generation system is formed by adjusting the external heating medium channel, which passes through the absorber and the high-temperature condenser and is then connected to the low-pressure steam inlet of the ejector, to form the fourth type of jet-absorption steam generation system. Attached image description:

[0017] Figure 1 This is a schematic diagram of the first structure and process of the fourth type of jet-absorption steam generation system provided by the present invention.

[0018] Figure 2 This is a schematic diagram of the second structure and process of the fourth type of jet-absorption steam generation system provided by the present invention.

[0019] Figure 3 This is a schematic diagram of the third structure and process of the fourth type of jet-absorption steam generation system provided by the present invention.

[0020] Figure 4 This is a schematic diagram of the fourth type of structure and process of the fourth type of jet-absorption steam generation system provided by the present invention.

[0021] Figure 5 This is a schematic diagram of the fifth structure and process of the fourth type of jet-absorption steam generation system provided by the present invention.

[0022] Figure 6 This is a schematic diagram of the sixth structure and process of the fourth type of jet-absorption steam generation system provided by the present invention.

[0023] Figure 7 This is a schematic diagram of the seventh structure and process of the fourth type of jet-absorption steam generation system provided by the present invention.

[0024] Figure 8 This is a schematic diagram of the eighth structure and process of the fourth type of jet-absorption steam generation system provided by the present invention.

[0025] Figure 9 This is a schematic diagram of the ninth structure and process of the fourth type of jet-absorption steam generation system provided by the present invention.

[0026] In the diagram, 1-low temperature generator, 2-solution pump, 3-solution heat exchanger, 4-second solution heat exchanger, 5-high temperature generator, 6-absorber, 7-low temperature condenser, 8-low pressure pump, 9-evaporator, 10-high temperature condenser, 11-throttle valve, 12-high pressure pump, 13-steam generator, 14-ejector, 15-second solution pump, 16-second absorber, A-compressor, B-two-phase expander, C-nozzle, D-diffuser, E-dual-energy compressor. Detailed implementation method:

[0027] 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.

[0028] Figure 1 The fourth type of jet-absorption steam generation system shown is implemented as follows:

[0029] (1) Structurally, it mainly consists of a low-temperature generator, a solution pump, a solution heat exchanger, a second solution heat exchanger, a high-temperature generator, an absorber, a low-temperature condenser, a low-pressure pump, an evaporator, a high-temperature condenser, a throttle valve, a high-pressure pump, a steam generator, and an ejector; the low-temperature generator 1 has a concentrated solution pipeline connected to the high-temperature generator 5 via the solution pump 2, the solution heat exchanger 3, and the second solution heat exchanger 4; the high-temperature generator 5 also has a concentrated solution pipeline connected to the absorber 6 via the second solution heat exchanger 4; the absorber 6 also has a dilute solution pipeline connected to the low-temperature generator 1 via the solution heat exchanger 3; the low-temperature generator 1 also has a refrigerant vapor channel connected to the low-temperature condenser 7; the low-temperature condenser 7 also has a condensate pipeline connected to the evaporator 9 via the low-pressure pump 8; and the high-temperature generator 5 also has a refrigerant... The steam passage is connected to the high-temperature condenser 10. The high-temperature condenser 10 also has a condensate pipeline that connects to the evaporator 9 via the low-temperature generator 1 and the throttle valve 11. The evaporator 9 also has a refrigerant steam passage that connects to the absorber 6. An external liquid medium pipeline connects to the steam generator 13 via the high-pressure pump 12. The steam generator 13 also has a working steam passage that connects to the high-pressure steam inlet of the ejector 14. An external heated medium passage connects to the low-pressure steam inlet of the ejector 14 via the absorber 6 and the high-temperature condenser 10. The ejector 14 also has a user steam passage that connects to the outside. The high-temperature generator 5 and the steam generator 13 also have high-temperature heat medium passages that connect to the outside. The low-temperature condenser 7 also has a cooling medium passage that connects to the outside. The evaporator 9 also has a low-temperature heat medium passage that connects to the outside.

[0030] (2) In terms of process, the concentrated solution from the low-temperature generator 1 enters the high-temperature generator 5 via the solution pump 2, solution heat exchanger 3, and second solution heat exchanger 4. The high-temperature heat medium flows through the high-temperature generator 5, heating the solution inside and releasing refrigerant vapor, which is then supplied to the high-temperature condenser 10. The concentrated solution from the high-temperature generator 5 enters the absorber 6 via the second solution heat exchanger 4, absorbing refrigerant vapor and releasing heat to the heated medium. The dilute solution from the absorber 6 enters the low-temperature generator 1 via the solution heat exchanger 3. The condensate flows through the low-temperature generator 1, heating the solution inside and releasing refrigerant vapor, which is then supplied to the low-temperature condenser 7. The refrigerant vapor in the low-temperature condenser 7 releases heat to the cooling medium and becomes condensate. The condensate from the low-temperature condenser 7 is pressurized by the low-pressure pump 8 and enters the evaporator 9 to absorb heat and vaporize. The refrigerant vapor in the high-temperature condenser 10 releases heat to the heated medium and becomes condensate. The condensate discharged from the high-temperature condenser 10 flows through the low-temperature generator 1 and releases heat, flows through the throttle valve 11 to reduce pressure and temperature, and then enters the high-temperature condenser 10. The refrigerant vapor discharged from the evaporator 9 absorbs heat and vaporizes, and enters the absorber 1. The external heated medium flows through the absorber 6 and the high-temperature condenser 10 and gradually absorbs heat and vaporizes. The external liquid medium flows through the high-pressure pump 12 and enters the steam generator 13 after being pressurized. The high-temperature hot medium flows through the steam generator 13 and heats the fluid inside, absorbing heat and vaporizing. The high-pressure steam generated by the steam generator 13 is provided to the ejector 14 as working steam. The working steam enters the ejector 14, flows through the nozzle to reduce pressure and increase speed, and forms a low-pressure system. The steam discharged from the high-temperature condenser 10 is drawn into the low-pressure zone of the ejector 14. After the two steam streams are mixed, they flow through the diffuser to reduce speed and increase pressure, forming medium-pressure steam, which is then supplied to the steam user. The high-temperature hot medium provides high-temperature driving heat load through the high-temperature generator 5 and the steam generator 13, and the low-temperature hot medium provides low-temperature heat load through the evaporator 9. The cooling medium carries away the discharged cooling heat load through the low-temperature condenser 7, forming the fourth type of ejector-absorption steam generation system.

[0031] Figure 2 The fourth type of jet-absorption steam generation system shown is implemented as follows:

[0032] (1) Structurally, in Figure 1 In the fourth type of jet-absorption steam generation system shown, the high-pressure pump 12 and the external liquid medium pipeline connected to the steam generator 14 via the high-pressure pump 12 are eliminated. The steam generator 14 and its heated medium channel connected to the outside and the working steam channel connected to the high-pressure steam inlet of the ejector 14 are also eliminated. An external working steam channel is added to connect to the high-pressure steam inlet of the ejector 14.

[0033] (2) In terms of process, with Figure 1 Compared to the fourth type of jet-absorption steam generation system shown, the difference is that working steam is supplied externally to the ejector 14 to form the fourth type of jet-absorption steam generation system.

[0034] Figure 3 The fourth type of jet-absorption steam generation system shown is implemented as follows:

[0035] (1) Structurally, in Figure 1 In the fourth type of jet-absorption steam generation system shown, the low-temperature generator 1 is connected to the high-temperature generator 5 via a concentrated solution pipeline through a solution pump 2, a solution heat exchanger 3, and a second solution heat exchanger 4. The system is then adjusted so that the low-temperature generator 1 has a concentrated solution pipeline connected to the absorber 6 via a second solution pump 15 and a second solution heat exchanger 4. The absorber 6 then has a dilute solution pipeline connected to the high-temperature generator 5 via a solution pump 2 and a solution heat exchanger 3. The high-temperature generator 5 is then connected to the absorber 6 via a concentrated solution pipeline through a second solution heat exchanger 4. The system is then adjusted so that the high-temperature generator 5 has a concentrated solution pipeline connected to the low-temperature generator 1 via a solution heat exchanger 3 and a second solution heat exchanger 4.

[0036] (2) In terms of process, with Figure 1 Compared to the fourth type of jet-absorption steam generation system shown, the difference lies in the following: the dilute solution of absorber 6 enters high-temperature generator 5 via solution pump 2 and solution heat exchanger 3. The high-temperature heat medium flows through high-temperature generator 5, heats the solution inside, releases refrigerant vapor, and supplies it to high-temperature condenser 10. The concentrated solution of high-temperature generator 5 enters low-temperature generator 1 via solution heat exchanger 3 and second solution heat exchanger 4. The condensate flows through low-temperature generator 1, heats the solution inside, releases refrigerant vapor, and supplies it to low-temperature condenser 7. The concentrated solution of low-temperature generator 1 enters absorber 6 via second solution pump 15 and second solution heat exchanger 4, absorbs refrigerant vapor, and releases heat to the heated medium, thus forming the fourth type of jet-absorption steam generation system.

[0037] Figure 4 The fourth type of jet-absorption steam generation system shown is implemented as follows:

[0038] (1) Structurally, in Figure 1In the fourth type of jet-absorption steam generation system shown, the low-temperature generator 1 is connected to the high-temperature generator 5 via a concentrated solution pipeline through a solution pump 2, a solution heat exchanger 3, and a second solution heat exchanger 4. The system is adjusted so that the low-temperature generator 1 has a concentrated solution pipeline connected to the absorber 6 via a second solution pump 15 and a solution heat exchanger 3. The absorber 6 also has a dilute solution pipeline connected to the second absorber 16 via a solution heat exchanger 3. The second absorber 16 then has a dilute solution pipeline connected to the high-temperature generator 5 via a solution pump 2 and a second solution heat exchanger 4. The high-temperature generator 5... The concentrated solution pipeline is connected to the absorber 6 via the second solution heat exchanger 4 and adjusted to allow the high-temperature generator 5 to have a concentrated solution pipeline connected to the low-temperature generator 1 via the second solution heat exchanger 4. The low-temperature condenser 7 and the low-pressure pump 8 are removed. The low-temperature condenser 7 and its external cooling medium channel and the condensate pipeline connected to the evaporator 9 via the low-pressure pump 8 are also removed. The low-temperature generator 1 is adjusted to have a refrigerant vapor channel connected to the low-temperature condenser 7 and to have a refrigerant vapor channel connected to the second absorber 16. The second absorber 16 also has a cooling medium channel connected to the outside.

[0039] (2) In terms of process, with Figure 1 Compared to the fourth type of jet-absorption steam generation system shown, the difference lies in the following: the dilute solution of absorber 6 enters the second absorber 16 via solution heat exchanger 3, absorbs refrigerant vapor and releases heat to the cooling medium; the dilute solution of the second absorber 16 enters the high-temperature generator 5 via solution pump 2 and second solution heat exchanger 4; the high-temperature heat medium flows through the high-temperature generator 5, heats the solution inside, releases refrigerant vapor and supplies it to the high-temperature condenser 10; the concentrated solution of the high-temperature generator 5 enters the low-temperature generator 1 via the second solution heat exchanger 4; the condensate flows through the low-temperature generator 1, heats the solution inside, releases refrigerant vapor and supplies it to the second absorber 16; the concentrated solution of the low-temperature generator 1 enters the absorber 6 via the second solution pump 15 and solution heat exchanger 3, absorbs refrigerant vapor and releases heat to the heated medium, thus forming the fourth type of jet-absorption steam generation system.

[0040] Figure 5 The fourth type of jet-absorption steam generation system shown is implemented as follows:

[0041] (1) Structurally, in Figure 1 In the fourth type of jet-absorption steam generation system shown, compressor A is added, and the refrigerant vapor passage of the high-temperature generator 5 is connected to the high-temperature condenser 10. The connection is adjusted so that the refrigerant vapor passage of the high-temperature generator 5 is connected to the high-temperature condenser 10 via compressor A.

[0042] (2) In terms of process, with Figure 1Compared to the fourth type of jet-absorption steam generation system shown, the difference is that the refrigerant vapor generated by the high-temperature generator 5 flows through the compressor A to increase its pressure and temperature, and then enters the high-temperature condenser 10 to release heat and condense; the external mechanical energy is provided by the compressor A to form the fourth type of jet-absorption steam generation system.

[0043] Figure 6 The fourth type of jet-absorption steam generation system shown is implemented as follows:

[0044] (1) Structurally, in Figure 1 In the fourth type of jet-absorption steam generation system shown, compressor A is added, and the refrigerant vapor passage of evaporator 9 is connected to absorber 6, so that the refrigerant vapor passage of evaporator 9 is connected to absorber 6 via compressor A.

[0045] (2) In terms of process, with Figure 1 Compared to the fourth type of jet-absorption steam generation system shown, the difference is that the refrigerant vapor generated by the evaporator 9 flows through the compressor A to increase its pressure and temperature, and then enters the absorber 6 to release heat and condense; the external mechanical energy is provided by the compressor A to form the fourth type of jet-absorption steam generation system.

[0046] Figure 7 The fourth type of jet-absorption steam generation system shown is implemented as follows:

[0047] (1) Structurally, in Figure 1 In the fourth type of jet-absorption steam generation system shown, a two-phase expander B is added and the throttle valve 11 is replaced.

[0048] (2) In terms of process, with Figure 1 Compared with the fourth type of jet-absorption steam generation system shown, the difference is that: the condensate discharged from the high-temperature condenser 10 flows through the low-temperature generator 1 and releases heat, flows through the two-phase expander B to reduce pressure and do work, and then enters the evaporator 9 to absorb heat and vaporize; the mechanical energy output by the two-phase expander B is provided to the outside, forming the fourth type of jet-absorption steam generation system.

[0049] Figure 8 The fourth type of jet-absorption steam generation system shown is implemented as follows:

[0050] (1) Structurally, in Figure 1 In the fourth type of jet-absorption steam generation system shown, a nozzle C is added and replaces the throttle valve 11, a diffuser D is added, and the refrigerant vapor passage of the evaporator 9 is connected to the absorber 6, which is adjusted so that the refrigerant vapor passage of the evaporator 9 is connected to the absorber 6 via the diffuser D.

[0051] (2) In terms of process, with Figure 1Compared to the fourth type of jet-absorption steam generation system shown, the difference is that: the condensate discharged from the high-temperature condenser 10 flows through the low-temperature generator 1 and releases heat, then flows through the nozzle C to decrease pressure and increase speed, and then enters the evaporator 9 to absorb heat and vaporize; the refrigerant vapor discharged from the evaporator 9 flows through the diffuser D to decrease speed and increase pressure, and then enters the absorber 6 to release heat and condense, forming the fourth type of jet-absorption steam generation system.

[0052] Figure 9 The fourth type of jet-absorption steam generation system shown is implemented as follows:

[0053] (1) Structurally, in Figure 1 In the fourth type of jet-absorption steam generation system shown, a nozzle C is added and replaces the throttle valve 11, a dual-energy compressor E is added, and the refrigerant vapor passage of the evaporator 9 is connected to the absorber 6, so that the refrigerant vapor passage of the evaporator 9 is connected to the absorber 6 via the dual-energy compressor E.

[0054] (2) In terms of process, with Figure 1 Compared to the fourth type of jet-absorption steam generation system shown, the differences are as follows: The condensate discharged from the high-temperature condenser 10 flows through the low-temperature generator 1 and releases heat, then flows through the nozzle C to reduce pressure and increase speed, and then enters the evaporator 9 to absorb heat and vaporize; the refrigerant vapor generated by the evaporator 9 flows through the dual-energy compressor E to increase pressure and temperature and decrease speed, and then enters the absorber 6 to release heat and condense; the external dual-energy compressor E provides driving mechanical energy to form the fourth type of jet-absorption steam generation system.

[0055] The effects achievable by this invention—the fourth type of jet-absorption steam generation system proposed in this invention has the following effects and advantages:

[0056] (1) A new technology for efficient refrigeration / heating / steam production using thermal energy or combined mechanical energy has been created.

[0057] (2) Combining jetting and absorption technologies to leverage their respective strengths and compensate for their weaknesses, thereby improving energy efficiency.

[0058] (3) The process is reasonable and the performance index is reasonable; the structure is simple and the manufacturing cost is low.

[0059] (4) High-temperature heat sources are used in segments to reduce irreversible losses due to systemic temperature differences and improve their utilization efficiency and value.

[0060] (5) It can realize the deep utilization of medium-temperature heat resources and achieve deep cooling.

[0061] (6) It expands the parameter range of combined cooling / steam supply, which can improve energy utilization efficiency and value, and enhance economic efficiency.

[0062] (7) It has expanded the application scenarios and application value of jetting technology and absorption technology.

[0063] (8) The ejector is simple to manufacture, durable, and has little irreversible loss, which is beneficial to improving the performance index of the heat pump.

[0064] (9) Provides a variety of specific technical solutions that can cope with many different actual situations, which is conducive to expanding the application scope and use value of the fourth type of jet-absorption steam generation system.

Claims

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

2. The fourth type of jet-absorption steam generation system is the fourth type of jet-absorption steam generation system described in claim 1, in which the high-pressure pump (12) and the external liquid medium pipeline connected to the steam generator (14) via the high-pressure pump (12) are eliminated, the steam generator (14) and its heated medium channel connected to the outside and the working steam channel connected to the high-pressure steam inlet of the ejector (14) are eliminated, and an external working steam channel connected to the high-pressure steam inlet of the ejector (14) is added to form the fourth type of jet-absorption steam generation system.

3. The fourth type of jet-absorption steam generation system is the fourth type of jet-absorption steam generation system described in claim 1 or claim 2, wherein the low-temperature generator (1) is connected to the high-temperature generator (5) via a concentrated solution pipeline through a solution pump (2), a solution heat exchanger (3), and a second solution heat exchanger (4), and the low-temperature generator (1) is connected to the absorber (6) via a concentrated solution pipeline through a second solution pump (15) and a second solution heat exchanger (4), and the absorber (6) is connected to the high-temperature generator (5) via a dilute solution pipeline through a solution pump (2) and a solution heat exchanger (3), and the high-temperature generator (5) is connected to the absorber (6) via a concentrated solution pipeline through a second solution heat exchanger (4), and the high-temperature generator (5) is connected to the low-temperature generator (1) via a concentrated solution pipeline through a solution heat exchanger (3) and a second solution heat exchanger (4), thus forming the fourth type of jet-absorption steam generation system.

4. A fourth type of jet-absorption steam generation system, in the fourth type of jet-absorption steam generation system as described in claim 1 or claim 2, wherein the low-temperature generator (1) is connected to the high-temperature generator (5) via a concentrated solution pipeline through a solution pump (2), a solution heat exchanger (3), and a second solution heat exchanger (4), and the low-temperature generator (1) is adjusted to have a concentrated solution pipeline connected to the absorber (6) via a second solution pump (15) and a solution heat exchanger (3), the absorber (6) also has a dilute solution pipeline connected to the second absorber (16) via a solution heat exchanger (3), and the second absorber (16) further has a dilute solution pipeline connected to the high-temperature generator (5) via a solution pump (2) and a second solution heat exchanger (4), thereby generating high-temperature steam. The high-temperature generator (5) is connected to the absorber (6) via the concentrated solution pipeline through the second solution heat exchanger (4). The high-temperature generator (5) is connected to the low-temperature generator (1) via the concentrated solution pipeline through the second solution heat exchanger (4). The low-temperature condenser (7) and the low-pressure pump (8) are removed. The low-temperature condenser (7) and its external cooling medium channel and the condensate pipeline connected to the evaporator (9) via the low-pressure pump (8) are removed. The low-temperature generator (1) is connected to the low-temperature condenser (7) via the refrigerant vapor channel. The low-temperature generator (1) is connected to the second absorber (16) via the refrigerant vapor channel. The second absorber (16) also has a cooling medium channel connected to the outside, forming a fourth type of jet-absorption steam generation system.

5. The fourth type of jet-absorption steam generation system is a fourth type of jet-absorption steam generation system described in any of the fourth type of jet-absorption steam generation systems described in claims 1-4, wherein a compressor (A) is added, and the refrigerant vapor passage of the high-temperature generator (5) is connected to the high-temperature condenser (10) so that the refrigerant vapor passage of the high-temperature generator (5) is connected to the high-temperature condenser (10) via the compressor (A), thereby forming the fourth type of jet-absorption steam generation system.

6. The fourth type of jet-absorption steam generation system is a fourth type of jet-absorption steam generation system described in any of claims 1-4, wherein a compressor (A) is added, and the refrigerant vapor passage of the evaporator (9) is connected to the absorber (6) so that the refrigerant vapor passage of the evaporator (9) is connected to the absorber (6) via the compressor (A), thereby forming the fourth type of jet-absorption steam generation system.

7. The fourth type of jet-absorption steam generation system is formed by adding a two-phase expander (B) and replacing the throttle valve (11) to any of the fourth type of jet-absorption steam generation systems described in claims 1-6, thereby forming the fourth type of jet-absorption steam generation system.

8. The fourth type of jet-absorption steam generation system is a fourth type of jet-absorption steam generation system described in any of claims 1-5, wherein a nozzle (C) is added and a throttle valve (11) is replaced, a diffuser (D) is added, and the refrigerant vapor passage of the evaporator (9) is connected to the absorber (6) and adjusted so that the refrigerant vapor passage of the evaporator (9) is connected to the absorber (6) through the diffuser (D), thereby forming the fourth type of jet-absorption steam generation system.

9. The fourth type of jet-absorption steam generation system is a fourth type of jet-absorption steam generation system described in any of claims 1-5, wherein a nozzle (C) is added and a throttle valve (11) is replaced, a dual-energy compressor (E) is added, and the refrigerant vapor passage of the evaporator (9) is connected to the absorber (6) so that the refrigerant vapor passage of the evaporator (9) is connected to the absorber (6) via the dual-energy compressor (E), thereby forming the fourth type of jet-absorption steam generation system.

10. The fourth type of jet-absorption steam generation system is formed by adjusting the external heating medium channel through the absorber (6) and the high-temperature condenser (10) to connect to the low-pressure steam inlet of the ejector (14) in any of the fourth type of jet-absorption steam generation systems described in claims 1-9.

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