Gas turbine combined cycle heat pump system

Abstract

This invention provides a gas turbine-type combined cycle heat pump system, belonging to the field of heat pump technology. An external air passage connects to the compressor and combustion chamber; an external fuel passage connects to the combustion chamber; the combustion chamber also has a gas passage connecting to the gas turbine; the gas turbine also has a gas passage connecting to the outside via a steam generator; a second compressor has a refrigerant vapor passage connecting to the heater; the heater connects to the evaporator via a throttling valve; the evaporator connects to the second compressor; an external liquid medium pipeline connects to the steam generator via a booster pump; the steam generator connects to the high-pressure steam inlet of the ejector; an external heated medium passage connects to the heater and then to the low-pressure steam inlet of the ejector; the ejector also has a user steam passage connecting to the outside; the evaporator also has a low-temperature heat medium passage connecting to the outside; the gas turbine connects to the compressor and the second compressor and transmits power, forming a gas turbine-type combined cycle heat pump system.

Description

Technical fields:

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

[0002] People need cold / heat / steam / power in their lives and production processes. Using heat pump technology to obtain cold / heat / steam / power is an important means to achieve efficient and high-value energy utilization. In practical applications, it is necessary to comprehensively consider the heat pump's operating parameters, performance index, manufacturing cost, adaptability, as well as the characteristics of different energy sources and targeted technical means.

[0003] High-quality fuels, typically represented by natural gas, gasoline, and diesel, are high-temperature heat sources with temperatures exceeding several thousand degrees Celsius. Achieving efficient and high-value utilization of these fuels in refrigeration, heating, steam production, and power generation, and leveraging their leading role as high-quality energy sources, presents a significant technological challenge.

[0004] Vapor compression heat pump technology, which operates on the principle of reverse Rankine cycle, has the advantage of being able to achieve constant-temperature heat absorption; however, meeting the demand for high-parameter heating or steam is technically challenging.

[0005] 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.

[0006] Based on the fundamental principles of simple and efficient use of high-quality fuels for refrigeration / heating / steam production / power, this invention presents a gas turbine combined cycle heat pump system with integrated technology, a reasonable process, a simple structure, and optimized performance index. Summary of the Invention:

[0007] The main objective of this invention is to provide a gas turbine-based combined cycle heat pump system. The specific contents of the invention are described in detail below:

[0008] 1. A gas turbine-type combined cycle heat pump system mainly consists of a compressor, combustion chamber, gas turbine, steam generator, booster pump, ejector, second compressor, heater, throttle valve, and evaporator. Externally, it has an air passage connecting to the compressor, an air passage connecting to the combustion chamber, an external fuel passage connecting to the combustion chamber, a gas passage connecting the combustion chamber to the gas turbine, and a gas passage connecting the gas turbine to the steam generator before connecting to the outside. The second compressor has a refrigerant vapor passage connecting to the heater, and the heater has a condensate line connecting to the evaporator via the throttle valve. The evaporator also has a refrigerant vapor passage connecting to the second compressor. Externally, a liquid medium line connects to the steam generator via the booster pump, and the steam generator has a steam passage connecting to the high-pressure steam inlet of the ejector. Externally, a heated medium passage connects to the heater and then to the low-pressure steam inlet of the ejector. The ejector also has a user steam passage connecting to the outside. The evaporator has a low-temperature heat medium passage connecting to the outside. The gas turbine connects to the compressor and the second compressor and transmits power, forming a gas turbine-type combined cycle heat pump system.

[0009] 2. A gas turbine-type combined cycle heat pump system is a gas turbine-type combined cycle heat pump system described in item 1, wherein a high-temperature regenerator is added, the compressor is modified from having an air passage connected to the combustion chamber to having an air passage connected to the combustion chamber via the high-temperature regenerator, and the gas turbine is modified from having a gas passage connected to the steam generator to having a gas passage connected to the steam generator via the high-temperature regenerator, thus forming a gas turbine-type combined cycle heat pump system.

[0010] 3. A gas turbine-type combined cycle heat pump system is a gas turbine-type combined cycle heat pump system described in item 1, with the addition of a high-temperature regenerator. The compressor is changed from having an air passage connected to the combustion chamber to having an air passage connected to the combustion chamber via the high-temperature regenerator. The gas turbine is changed from having a gas passage connected to the steam generator to having a gas passage connected to itself via the high-temperature regenerator, and then having a gas passage connected to the steam generator, thus forming a gas turbine-type combined cycle heat pump system.

[0011] 4. A gas turbine-type combined cycle heat pump system is a gas turbine-type combined cycle heat pump system described in item 1, with the addition of a high-temperature regenerator. The compressor is modified from having an air passage connected to the combustion chamber to having an air passage connected to itself via the high-temperature regenerator, and then having an air passage connected to the combustion chamber. The gas turbine is modified from having a gas passage connected to the steam generator to having a gas passage connected to the steam generator via the high-temperature regenerator, thus forming a gas turbine-type combined cycle heat pump system.

[0012] 5. A gas turbine-type combined cycle heat pump system is formed by adding a regenerator to any of the gas turbine-type combined cycle heat pump systems described in items 1-4. The regenerator is modified so that the evaporator has a refrigerant vapor passage connected to the second compressor, and the evaporator has a refrigerant vapor passage connected to the second compressor via the regenerator. The condensate pipe of the heater is modified so that the heater has a condensate pipe connected to the evaporator via the regenerator and the throttling valve, thus forming a gas turbine-type combined cycle heat pump system.

[0013] 6. A gas turbine-type combined cycle heat pump system, which is any one of the gas turbine-type combined cycle heat pump systems described in items 1-4, with the addition of a regenerator, an expander, and a second heater. The second compressor is adjusted so that the regenerator vapor passage is connected to the heater and then splits into two paths after passing through the second heater—the first path connects to the heater and the second path connects to the expander. The expander also has a regenerator vapor passage connected to the regenerator and then connected to the second compressor through an intermediate port. The heater has a condensate pipeline connected to the evaporator through a throttling valve, which is adjusted so that the heater has a regenerator medium pipeline with either fully condensed or partially condensed regenerator medium connected to the evaporator after passing through the regenerator and the throttling valve. The second heater also has a heated medium passage connected to the outside. The expander is connected to the second compressor and transmits power, forming a gas turbine-type combined cycle heat pump system.

[0014] 7. A gas turbine-type combined cycle heat pump system, which is any one of the gas turbine-type combined cycle heat pump systems described in items 1-4, with the addition of a regenerator, an expander, a second heater, and a second regenerator. The evaporator is adjusted so that the regenerator vapor passage is connected to the second compressor via the second regenerator. The second compressor is adjusted so that the regenerator vapor passage is connected to the heater via the second heater and then splits into two paths—the first path connects to the heater and the second path connects to the expander. The expander also has a regenerator vapor passage connected to the regenerator and then connected to the second compressor via an intermediate port. The heater has a condensate line connected to the evaporator via a throttling valve, which is adjusted so that the heater has a regenerator medium line (either fully condensed or partially condensed) connected to the evaporator via the regenerator, the second regenerator, and the throttling valve. The second heater also has a heated medium passage connected to the outside. The expander is connected to the second compressor and transmits power, forming a gas turbine-type combined cycle heat pump system.

[0015] 8. A gas turbine-type combined cycle heat pump system is formed by adding a two-phase expander to replace the throttle valve in any of the gas turbine-type combined cycle heat pump systems described in items 1-7. The two-phase expander is connected to a second compressor and transmits power to form a gas turbine-type combined cycle heat pump system.

[0016] 9. A gas turbine-type combined cycle heat pump system is formed by adding a nozzle and replacing the throttle valve to any of the gas turbine-type combined cycle heat pump systems described in items 1-7, and adding a dual-energy compressor and replacing the second compressor.

[0017] 10. A gas turbine-type combined cycle heat pump system is formed by adding a nozzle and replacing the throttle valve, adding a dual-energy compressor and replacing the second compressor, and adding an expander speed-up unit and replacing the expander in any of the gas turbine-type combined cycle heat pump systems described in items 6 and 7, thereby forming a gas turbine-type combined cycle heat pump system.

[0018] 11. A gas turbine-type combined cycle heat pump system is any one of the gas turbine-type combined cycle heat pump systems described in items 1-4, with the addition of a nozzle and a steam distribution chamber. The heating unit is adjusted so that the condensate line connecting the heating unit to the evaporator is connected via a throttling valve, and the heating unit has a condensate line connecting to the steam distribution chamber via a nozzle. The steam distribution chamber also has a refrigerant vapor passage connected to the second compressor through an intermediate port, and the steam distribution chamber also has a condensate line connected to the evaporator after passing through a throttling valve, thus forming a gas turbine-type combined cycle heat pump system.

[0019] 12. A gas turbine-type combined cycle heat pump system is formed by adding a regenerator, nozzles, and a steam distribution chamber to any of the gas turbine-type combined cycle heat pump systems described in items 1-4. The evaporator is modified so that it has a refrigerant vapor passage connected to the second compressor, and the refrigerant vapor passage is connected to the second compressor via the regenerator. The heater is modified so that it has a condensate line connected to the evaporator via a throttling valve, and the condensate line is connected to the steam distribution chamber via the nozzles. The steam distribution chamber also has a refrigerant vapor passage connected to the second compressor via an intermediate port, and a condensate line connected to the evaporator via the regenerator and the throttling valve, thus forming a gas turbine-type combined cycle heat pump system.

[0020] 13. A gas turbine-type combined cycle heat pump system is formed by adding a second nozzle to replace the throttle valve and adding a dual-energy compressor to replace the second compressor in any of the gas turbine-type combined cycle heat pump systems described in items 11-12, thereby forming a gas turbine-type combined cycle heat pump system.

[0021] 14. A gas turbine-type combined cycle heat pump system is any one of the gas turbine-type combined cycle heat pump systems described in items 1-13, with the addition of a new heater, adjusting the steam generator from having a gas passage connected to the outside to having a gas passage connected to the new heater and then connected to the outside, and the new heater also having a heated medium passage connected to the outside, thus forming a gas turbine-type combined cycle heat pump system.

[0022] 15. A gas turbine-type combined cycle heat pump system is any one of the gas turbine-type combined cycle heat pump systems described in items 1-14, with the addition of a high-temperature heat exchanger, changing the air passage connecting to the combustion chamber to connect to the high-temperature heat exchanger before connecting to the combustion chamber, and the high-temperature heat exchanger also having a high-temperature heat medium passage connecting to the outside, thus forming a gas turbine-type combined cycle heat pump system.

[0023] 16. A gas turbine-type combined cycle heat pump system is any one of the gas turbine-type combined cycle heat pump systems described in items 1-15, with the addition of a heater and a heat source regenerator. An external fuel passage connects to the heater, and an external air passage connects to the heater via the heat source regenerator. The heater also has a gas passage connecting to the outside via the heat source regenerator. The air passage connecting to the combustion chamber is changed to connect to the heater and then to the combustion chamber, thus forming a gas turbine-type combined cycle heat pump system. Attached image description:

[0024] Figure 1 This is a first principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0025] Figure 2 This is a second principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0026] Figure 3 This is a third principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0027] Figure 4 This is the fourth principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0028] Figure 5 This is the fifth principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0029] Figure 6 This is the sixth principle thermodynamic system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0030] Figure 7 This is the seventh principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0031] Figure 8 This is the eighth principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0032] Figure 9 This is the ninth principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0033] Figure 10 This is the tenth principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0034] Figure 11 This is the 11th principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0035] Figure 12 This is the 12th principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0036] Figure 13 This is the 13th principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0037] Figure 14 This is the 14th principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0038] Figure 15 This is the 15th principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0039] Figure 16 This is the 16th principle thermal system diagram of a gas turbine-type combined cycle heat pump system provided by the present invention.

[0040] In the diagram, 1-compressor, 2-combustion chamber, 3-gas turbine, 4-steam generator, 5-boost pump, 6-ejector, 7-second compressor, 8-heater, 9-throttle valve, 10-evaporator, 11-high temperature regenerator, 12-regenerator, 13-expander, 14-second heater, 15-second regenerator, 16-two-phase expander, 17-nozzle, 18-dual-energy compressor, 19-expander speed-up unit, 20-steam separator, 21-second nozzle, A-additional heater, B-high temperature heat exchanger, C-heat furnace, D-heat source regenerator. Detailed implementation method:

[0041] First, it should be noted that the structure and process are not repeated unless necessary, and obvious processes are not described. The invention will now be described in detail with reference to the accompanying drawings and examples.

[0042] Figure 1 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0043] (1) Structurally, it mainly consists of a compressor, combustion chamber, gas turbine, steam generator, booster pump, injector, second compressor, heater, throttle valve and evaporator; it has an external air passage connected to compressor 1, compressor 1 has an air passage connected to combustion chamber 2, an external fuel passage connected to combustion chamber 2, combustion chamber 2 also has a gas passage connected to gas turbine 3, gas turbine 3 also has a gas passage connected to steam generator 4 and then connected to the outside, the second compressor 7 has a refrigerant vapor passage connected to heater 8, heater 8 also has a condensate pipe The gas turbine 3 is connected to the evaporator 10 via the throttle valve 9. The evaporator 10 also has a refrigerant vapor passage connected to the second compressor 7. An external liquid medium pipeline is connected to the steam generator 4 via the booster pump 5. The steam generator 4 also has a steam passage connected to the high-pressure steam inlet of the ejector 6. An external heated medium passage is connected to the heater 8 and then to the low-pressure steam inlet of the ejector 6. The ejector 6 also has a user steam passage connected to the outside. The evaporator 10 also has a low-temperature heat medium passage connected to the outside. The gas turbine 3 is connected to the compressor 1 and the second compressor 7 and transmits power.

[0044] (2) In terms of process, external air flows through compressor 1 to increase pressure and temperature before entering combustion chamber 2. External fuel enters combustion chamber 2, where fuel and compressed air mix and burn to form high-temperature gas. This gas then enters gas turbine 3 to reduce pressure and perform work. The gas discharged from gas turbine 3 flows through steam generator 4 to release heat and reduce temperature before being discharged to the outside. The refrigerant vapor discharged from the second compressor 7 enters heater 8 to release heat and condense. It then flows through throttle valve 9 to reduce pressure and temperature before entering evaporator 10 to absorb heat and vaporize. After that, it enters the second compressor 7 to increase pressure and temperature. The heated medium flows through heater 8 to absorb heat and vaporize. The liquid medium flows through booster pump 5 to increase pressure and enters steam generator 4 to absorb heat and vaporize. After vaporization, it enters ejector 6 through high-pressure steam inlet. High-pressure steam... The refrigerant vapor generated by the heater 8 is drawn into the low-pressure zone of the injector 6 after being depressurized and accelerated through the nozzle to form a low-pressure system. The two steam streams are mixed and then flow through the diffuser to depressurize and increase pressure to form medium-pressure steam, which is then supplied to the outside. The fuel provides the driving heat load through combustion, and the low-temperature heat medium provides the low-temperature heat load through the evaporator 10. The user receives a steam-type heat load, and the air and gas carry away the exhaust heat load through the inlet and outlet processes. The mechanical energy output by the gas turbine 3 is used to power the compressor 1 and the second compressor 7, or the mechanical energy output by the gas turbine 3 is used to power the compressor 1, the second compressor 7 and the outside, or the gas turbine 3 and the outside jointly provide power to the compressor 1 and the second compressor 7, forming a gas turbine type combined cycle heat pump system.

[0045] Figure 2 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0046] (1) Structurally, in Figure 1In the gas turbine combined cycle heat pump system shown, a high-temperature regenerator is added. The compressor 1 is changed from having an air passage connected to the combustion chamber 2 to having an air passage connected to the combustion chamber 2 via the high-temperature regenerator 11. The gas turbine 3 is changed from having a gas passage connected to the steam generator 4 to having a gas passage connected to the steam generator 4 via the high-temperature regenerator 11.

[0047] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference is that the compressed air discharged from the compressor 1 flows through the high-temperature regenerator 11 to absorb heat and increase its temperature, and then enters the combustion chamber 2 to participate in combustion; the gas discharged from the gas turbine 3 flows through the high-temperature regenerator 11 and the steam generator 4 to gradually release heat and decrease its temperature, and then is discharged to the outside, forming a gas turbine-type combined cycle heat pump system.

[0048] Figure 3 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0049] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a high-temperature regenerator is added. The compressor 1 is changed from having an air passage connected to the combustion chamber 2 to having an air passage connected to the combustion chamber 2 via the high-temperature regenerator 11. The gas turbine 3 is changed from having a gas passage connected to the steam generator 4 to having a gas passage connected to itself via the high-temperature regenerator 11, and then having a gas passage connected to the steam generator 4.

[0050] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference lies in the following: the compressed air discharged from the compressor 1 flows through the high-temperature regenerator 11 to absorb heat and increase its temperature, and then enters the combustion chamber 2 to participate in combustion; the high-temperature gas discharged from the combustion chamber 2 enters the gas turbine 3 to reduce its pressure and do work, and after reaching a certain level, it flows through the high-temperature regenerator 11 to release heat and decrease its temperature, and then enters the gas turbine 3 to continue to reduce its pressure and do work, flows through the steam generator 4 to release heat and decrease its temperature, and then is discharged to the outside, forming a gas turbine-type combined cycle heat pump system.

[0051] Figure 4 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0052] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a high-temperature regenerator is added. The compressor 1 is changed from having an air passage connected to the combustion chamber 2 to having an air passage connected to itself via the high-temperature regenerator 11, and then having an air passage connected to the combustion chamber 2. The gas turbine 3 is changed from having a gas passage connected to the steam generator 4 to having a gas passage connected to the steam generator 4 via the high-temperature regenerator 11.

[0053] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference lies in the following: external air enters the compressor 1, is pressurized and heated, and after reaching a certain level, it flows through the high-temperature regenerator 11 to absorb heat and be heated, then enters the compressor 1 to continue being pressurized and heated, and then enters the combustion chamber 2 to participate in combustion; the gas emitted by the gas turbine 3 flows through the high-temperature regenerator 11 and the steam generator 4 to gradually release heat and cool down, and then is discharged to the outside, forming a gas turbine-type combined cycle heat pump system.

[0054] Figure 5 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0055] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a regenerator 12 is added, and the refrigerant vapor passage of the evaporator 10 is connected to the second compressor 7. The refrigerant vapor passage of the evaporator 10 is then connected to the second compressor 7 via the regenerator 12. The condensate line of the heater 8 is connected to the evaporator 10 via the throttling valve 9. The condensate line of the heater 8 is then connected to the evaporator 10 via the regenerator 12 and the throttling valve 9.

[0056] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference is that the condensate discharged from the heater 8 flows through the regenerator 12 to release heat and cool down, flows through the throttling valve 9 to reduce pressure and temperature, flows through the evaporator 10 to absorb heat and vaporize, flows through the regenerator 12 to absorb heat and increase temperature, and then enters the second compressor 7 to increase pressure and temperature, forming a gas turbine-type combined cycle heat pump system.

[0057] Figure 6 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0058] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a regenerator, an expander, and a second heater are added. The refrigerant vapor passage of the second compressor 7 is connected to the heater 8. The refrigerant vapor passage of the second compressor 7 is then connected to the second heater 14 and split into two paths—the first path connects to the heater 8 and the second path connects to the expander 13. The expander 13 also has a refrigerant vapor passage connected to the regenerator 12 and then connected to the second compressor 7 through an intermediate port. The condensate pipeline of the heater 8 is connected to the evaporator 10 through the throttling valve 9. The refrigerant medium pipeline of the heater 8, whether fully condensed or not fully condensed, is connected to the evaporator 10 through the regenerator 12 and the throttling valve 9. The second heater 14 also has a heated medium passage connected to the outside. The expander 13 is connected to the second compressor 7 and transmits power.

[0059] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference lies in the following: the refrigerant vapor discharged from the second compressor 7 flows through the second heater 14 to release heat and cool down, and then splits into two paths—the first path enters the heater 8 for complete or incomplete condensation, and the second path enters the expander 13; the refrigerant vapor flows through the expander 13 to reduce pressure and do work, flows through the regenerator 12 to absorb heat and heat up, and enters the second compressor 7 through the intermediate air inlet port to increase pressure and temperature; the refrigerant medium discharged from the heater 8 flows through the regenerator 12 and releases heat, flows through the throttle valve 9 to reduce pressure and temperature, flows through the evaporator 10 to absorb heat and vaporize, and then enters the second compressor 7 to increase pressure and temperature; the heated medium obtains a medium-temperature heat load through the second heater 14, and the mechanical energy output from the expander 13 provides power to the second compressor 7, forming a gas turbine-type combined cycle heat pump system.

[0060] Figure 7 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0061] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a regenerator, an expander, a second heater, and a second regenerator are added. The evaporator 10 is connected to the second compressor 7 via a refrigerant vapor passage, which is adjusted so that the evaporator 10 has a refrigerant vapor passage connected to the second compressor 7 via the second regenerator 15. The second compressor 7 is connected to the heater 8 via a refrigerant vapor passage, which is adjusted so that the refrigerant vapor passage connects to the second heater 14 and then splits into two paths—the first path connects to the heater 8 and the second path connects to the expander 13. The expander 13 also has a refrigerant vapor passage connected to the regenerator 12 and then connected to the second compressor 7 via an intermediate port. The heater 8 has a condensate line connected to the evaporator 10 via a throttling valve 9, which is adjusted so that the heater 8 has a refrigerant medium line with either fully condensed or partially condensed refrigerant medium connected to the evaporator 10 via the regenerator 12, the second regenerator 15, and the throttling valve 9. The second heater 14 also has a heated medium passage connected to the outside. The expander 13 is connected to the second compressor 7 and transmits power.

[0062] (2) In terms of process, with Figure 1Compared to the gas turbine-type combined cycle heat pump system shown, the difference lies in the following: the refrigerant vapor discharged from the second compressor 7 flows through the second heater 14 to release heat and cool down, and then splits into two paths—the first path enters the heater 8 for complete or incomplete condensation, and the second path enters the expander 13; the refrigerant vapor flows through the expander 13 to reduce pressure and do work, flows through the regenerator 12 to absorb heat and heat up, and enters the second compressor 7 through the intermediate air inlet port to increase pressure and temperature; the refrigerant medium discharged from the heater 8 flows through the regenerator 12 and the second regenerator 15 and gradually releases heat, flows through the throttling valve 9 to reduce pressure and temperature, flows through the evaporator 10 to absorb heat and vaporize, flows through the second regenerator 15 to absorb heat and heat up, and then enters the second compressor 7 to increase pressure and temperature; the heated medium obtains a medium-temperature heat load through the second heater 14, and the mechanical energy output from the expander 13 provides power to the second compressor 7, forming a gas turbine-type combined cycle heat pump system.

[0063] Figure 8 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0064] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a two-phase expander 16 is added and replaces the throttle valve 9. The two-phase expander 16 is connected to the second compressor 7 and transmits power.

[0065] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference is that the condensate discharged from the heater 8 flows through the two-phase expander 16 to reduce pressure and do work, and then enters the evaporator 10 to absorb heat and vaporize; the mechanical energy output by the two-phase expander 16 provides power to the second compressor 7 to form a gas turbine-type combined cycle heat pump system.

[0066] Figure 9 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0067] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a nozzle 17 is added and replaces the throttle valve 9, and a dual-energy compressor 18 is added and replaces the second compressor 7.

[0068] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference is that the condensate discharged from the heater 8 flows through the nozzle 17 to reduce pressure and increase speed, flows through the evaporator 10 to absorb heat and vaporize, and then enters the dual-energy compressor 18 to increase pressure and temperature and reduce speed, thus forming a gas turbine-type combined cycle heat pump system.

[0069] Figure 10 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0070] (1) Structurally, in Figure 7 In the gas turbine-type combined cycle heat pump system shown, a nozzle 17 is added and replaces the throttle valve 9, a dual-energy compressor 18 is added and replaces the second compressor 7, and an expander accelerator 19 is added and replaces the expander 13.

[0071] (2) In terms of process, with Figure 7 Compared to the gas turbine-type combined cycle heat pump system shown, the difference lies in the following: the condensate discharged from the second regenerator 15 flows through the nozzle 17 to reduce pressure and increase speed, flows through the evaporator 10 to absorb heat and vaporize, flows through the second regenerator 15 to absorb heat and increase temperature, and then enters the dual-energy compressor 18 to increase pressure and temperature and decrease speed; the refrigerant vapor discharged from the second heater 14 is divided into two paths - the first path is provided to the heater 8, and the second path enters the expander accelerator 19 to reduce pressure and do work and increase speed, flows through the regenerator 12 to absorb heat and increase temperature, and then enters the dual-energy compressor 18 to increase pressure and temperature and decrease speed, thus forming a gas turbine-type combined cycle heat pump system.

[0072] Figure 11 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0073] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a nozzle and a steam distribution chamber are added. The condensate line of the heater 8 connected to the evaporator 10 via the throttling valve 9 is adjusted so that the heater 8 has a condensate line connected to the steam distribution chamber 20 via the nozzle 17. The steam distribution chamber 20 also has a refrigerant vapor passage connected to the second compressor 7 through an intermediate port. The steam distribution chamber 20 also has a condensate line connected to the evaporator 10 after passing through the throttling valve 9.

[0074] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference lies in the following: the condensate discharged from the heater 8 flows through the nozzle 17 to reduce pressure and increase speed, and then enters the steam separator 20 for gas-liquid separation; the refrigerant vapor discharged from the steam separator 20 enters the second compressor 7 through the intermediate port to increase pressure and temperature, and the condensate discharged from the steam separator 20 flows through the throttle valve 9 to reduce pressure and temperature before entering the evaporator 10 for thermal vaporization, thus forming the gas turbine-type combined cycle heat pump system.

[0075] Figure 12 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0076] (1) Structurally, in Figure 1In the gas turbine-type combined cycle heat pump system shown, a regenerator, nozzle, and steam distribution chamber are added. The refrigerant vapor passage of evaporator 10 is adjusted to be connected to the second compressor 7 via regenerator 12. The condensate line of heater 8 is adjusted to be connected to evaporator 10 via throttle valve 9. The condensate line of heater 8 is adjusted to be connected to steam distribution chamber 20 via nozzle 17. Steam distribution chamber 20 also has a refrigerant vapor passage connected to the second compressor 7 via an intermediate port. Steam distribution chamber 20 also has a condensate line connected to evaporator 10 via regenerator 12 and throttle valve 9.

[0077] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference lies in the following: the condensate discharged from the heater 8 flows through the nozzle 17 to reduce pressure and increase speed, and then enters the steam separator 20 for gas-liquid separation; the refrigerant vapor discharged from the steam separator 20 enters the second compressor 7 through the intermediate port to increase pressure and temperature; the condensate discharged from the steam separator 20 flows through the regenerator 12 to release heat and reduce temperature, flows through the throttle valve 9 to reduce pressure and reduce temperature, flows through the evaporator 10 to absorb heat and vaporize, flows through the regenerator 12 to absorb heat and increase temperature, and then enters the second compressor 7 to increase pressure and increase temperature, thus forming the gas turbine-type combined cycle heat pump system.

[0078] Figure 13 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0079] (1) Structurally, in Figure 11 In the gas turbine-type combined cycle heat pump system shown, a second nozzle 21 is added and replaces the throttle valve 9, and a dual-energy compressor 18 is added and replaces the second compressor 7.

[0080] (2) In terms of process, with Figure 11 Compared to the gas turbine-type combined cycle heat pump system shown, the difference is that the condensate discharged from the steam distribution chamber 20 flows through the second nozzle 18 to reduce pressure and increase speed, flows through the evaporator 10 to absorb heat and vaporize, and then enters the dual-energy compressor 18 to increase pressure and temperature and reduce speed, forming a gas turbine-type combined cycle heat pump system.

[0081] Figure 14 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0082] (1) Structurally, in Figure 1 In the gas turbine combined cycle heat pump system shown, a new heater A is added. The steam generator 4 is changed from having a gas passage connecting it to the outside to having a gas passage connecting the new heater A to the outside. The new heater A also has a heated medium passage connecting it to the outside.

[0083] (2) In terms of process, with Figure 1Compared to the gas turbine-type combined cycle heat pump system shown, the difference is that the gas emitted by the gas turbine 3 flows through the steam generator 4 and the newly added heater A to gradually release heat and cool down before being discharged to the outside; the heated medium obtains a medium-temperature heat load through the newly added heater A, forming a gas turbine-type combined cycle heat pump system.

[0084] Figure 15 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0085] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a high-temperature heat exchanger B is added, and the air passage connecting to the combustion chamber 2 is changed to connect to the high-temperature heat exchanger B before connecting to the combustion chamber 2. The high-temperature heat exchanger B also has a high-temperature heat medium passage connected to the outside.

[0086] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference lies in that: the compressed air discharged from the compressor 1 flows through the high-temperature heat exchanger B to absorb heat and increase its temperature, and then enters the combustion chamber 2 to participate in combustion; the high-temperature heat medium provides the driving heat load through the high-temperature heat exchanger B, forming a gas turbine-type combined cycle heat pump system.

[0087] Figure 16 The gas turbine-type combined cycle heat pump system shown is implemented as follows:

[0088] (1) Structurally, in Figure 1 In the gas turbine-type combined cycle heat pump system shown, a heater and a heat source regenerator are added. There is an external fuel channel connected to the heater C, and an external air channel connected to the heater C via the heat source regenerator D. The heater C also has a gas channel connected to the outside via the heat source regenerator D. The air channel connecting to the combustion chamber 2 is changed to connect to the heater C and then to the combustion chamber 2.

[0089] (2) In terms of process, with Figure 1 Compared to the gas turbine-type combined cycle heat pump system shown, the difference lies in the following: external fuel enters the heater C, and external air flows through the heat source regenerator D to absorb heat and increase its temperature before entering the heater C. The fuel and air mix and burn in the heater C to form gas. The gas generated in the heater C releases heat to the compressed gas flowing through it, then flows through the heat source regenerator D to release heat and decrease its temperature before being discharged to the outside. The compressed air discharged from the compressor 1 flows through the heater C to absorb heat and increase its temperature before entering the combustion chamber 2 to participate in combustion. External fuel provides high-temperature driving heat load through the heater C, and air and gas carry away the discharged heat load by entering and exiting the heater C, forming a gas turbine-type combined cycle heat pump system.

[0090] The effects achievable by this invention—the gas turbine-type combined cycle heat pump system proposed in this invention has the following effects and advantages:

[0091] (1) New ideas and technologies for utilizing temperature difference are presented.

[0092] (2) The fuel forms a high-grade heat source and is utilized step by step, which significantly improves energy utilization efficiency.

[0093] (3) New technologies for the efficient and high-value utilization of high-quality fuels in refrigeration / heating / steam / power production and combined cooling / heating / steam / power supply are presented.

[0094] (4) Energy sharing to enhance the efficient and high-value utilization of different energy types.

[0095] (5) When necessary, external power can be used to raise the temperature of thermal energy, which is flexible and adaptable.

[0096] (6) The two-stage acquisition of low-temperature heat load by the ejector and compressor is beneficial to significantly improve the heating parameters or reduce the compressor pressure share.

[0097] (7) Provide reasonable regeneration technology to effectively improve the coordination of the device in terms of load, performance index, and pressure ratio.

[0098] (8) The injector enables efficient utilization of gas emission heat load and temperature increase of low temperature heat load, thereby reducing the size of the compressor and effectively reducing the manufacturing cost of the device.

[0099] (9) The process is reasonable, the structure is simple, the manufacturing cost is low, and the system economy is effectively improved.

[0100] (10) Provides a variety of specific technical solutions that can cope with many different actual situations, which is conducive to expanding the application scope and value of gas turbine combined cycle heat pump system technology.

Claims

1. A gas turbine-type combined cycle heat pump system mainly consists of a compressor, combustion chamber, gas turbine, steam generator, booster pump, ejector, second compressor, heater, throttle valve, and evaporator; an external air passage connects to the compressor (1), the compressor (1) has an air passage connects to the combustion chamber (2), an external fuel passage connects to the combustion chamber (2), the combustion chamber (2) also has a gas passage connects to the gas turbine (3), the gas turbine (3) also has a gas passage connects to the steam generator (4) and then connects to the outside, the second compressor (7) has a refrigerant vapor passage connects to the heater (8), and the heater (8) also has a condensate pipeline connected to the throttle valve (9). The system is connected to the evaporator (10), which also has a refrigerant vapor channel connected to the second compressor (7). There is an external liquid medium pipeline connected to the steam generator (4) via the booster pump (5). The steam generator (4) also has a steam channel connected to the high-pressure steam inlet of the ejector (6). There is an external heated medium channel connected to the heater (8) and then connected to the low-pressure steam inlet of the ejector (6). The ejector (6) also has a user steam channel connected to the outside. The evaporator (10) also has a low-temperature heat medium channel connected to the outside. The gas turbine (3) is connected to the compressor (1) and the second compressor (7) and transmits power to form a gas turbine type combined cycle heat pump system.

2. A gas turbine-type combined cycle heat pump system is a gas turbine-type combined cycle heat pump system as described in claim 1, wherein a high-temperature regenerator is added, the compressor (1) is connected to the combustion chamber (2) via an air passage, and the compressor (1) is connected to the combustion chamber (2) via an air passage through a high-temperature regenerator (11), and the gas turbine (3) is connected to the steam generator (4) via a gas passage through a high-temperature regenerator (11), thereby forming a gas turbine-type combined cycle heat pump system.

3. A gas turbine-type combined cycle heat pump system is a gas turbine-type combined cycle heat pump system as described in claim 1, wherein a high-temperature regenerator is added, the compressor (1) is adjusted to have an air passage connecting the compressor (1) to the combustion chamber (2) and the compressor (1) is adjusted to have an air passage connecting the compressor (1) to the combustion chamber (2) via the high-temperature regenerator (11), and the gas turbine (3) is adjusted to have a gas passage connecting the gas turbine (3) to the steam generator (4) and the gas turbine (3) is adjusted to have a gas passage connecting the gas turbine (3) to itself via the high-temperature regenerator (11), and then the gas turbine (3) has a gas passage connecting the steam generator (4), thus forming a gas turbine-type combined cycle heat pump system.

4. A gas turbine-type combined cycle heat pump system is a gas turbine-type combined cycle heat pump system as described in claim 1, wherein a high-temperature regenerator is added, the compressor (1) is adjusted to have an air passage connected to the combustion chamber (2) so that the compressor (1) has an air passage connected to itself through the high-temperature regenerator (11), and then the compressor (1) has an air passage connected to the combustion chamber (2), and the gas turbine (3) is adjusted to have a gas passage connected to the steam generator (4) so ​​that the gas turbine (3) has a gas passage connected to the steam generator (4) through the high-temperature regenerator (11), thus forming a gas turbine-type combined cycle heat pump system.

5. A gas turbine-type combined cycle heat pump system is formed by adding a regenerator (12) to any of the gas turbine-type combined cycle heat pump systems described in claims 1-4, adjusting the evaporator (10) to have a refrigerant vapor passage connected to the second compressor (7) so that the evaporator (10) has a refrigerant vapor passage connected to the second compressor (7) via the regenerator (12), and adjusting the heater (8) to have a condensate pipe connected to the evaporator (10) via a throttling valve (9) so that the heater (8) has a condensate pipe connected to the evaporator (10) after passing through the regenerator (12) and the throttling valve (9), thus forming a gas turbine-type combined cycle heat pump system.

6. A gas turbine-type combined cycle heat pump system, which is any one of the gas turbine-type combined cycle heat pump systems described in claims 1-4, adds a regenerator, an expander, and a second heater. The refrigerant vapor passage of the second compressor (7) is connected to the heater (8), and the connection is adjusted so that the refrigerant vapor passage of the second compressor (7) is connected to the second heater (14) and then splits into two paths—the first path is connected to the heater (8) and the second path is connected to the expander (13). The expander (13) also has a refrigerant vapor passage connected to the regenerator. After the heater (12), it is connected to the second compressor (7) through the intermediate port. The heater (8) is connected to the evaporator (10) through the throttle valve (9) to adjust the heater (8) to have a refrigerant medium pipeline that is fully condensed or not fully condensed, which is connected to the evaporator (10) through the regenerator (12) and the throttle valve (9). The second heater (14) also has a heated medium channel that is connected to the outside. The expander (13) is connected to the second compressor (7) and transmits power to form a gas turbine type combined cycle heat pump system.

7. A gas turbine-type combined cycle heat pump system, which is any one of the gas turbine-type combined cycle heat pump systems described in claims 1-4, adds a regenerator, an expander, a second heater, and a second regenerator. The refrigerant vapor passage of the evaporator (10) is connected to the second compressor (7) via the second regenerator (15), and the refrigerant vapor passage of the second compressor (7) is connected to the heater (8) via the second heater (14), then splits into two paths—the first path connects to the heater (8) and the second... The expansion unit (13) is connected to the refrigerant vapor channel, which is connected to the regenerator (12) and then connected to the second compressor (7) through the intermediate port. The condensate pipeline of the heater (8) is connected to the evaporator (10) through the throttle valve (9) and adjusted so that the heater (8) has a refrigerant medium pipeline that is fully condensed or not fully condensed, which is connected to the evaporator (10) through the regenerator (12), the second regenerator (15) and the throttle valve (9). The second heater (14) also has a heated medium channel connected to the outside. The expansion unit (13) is connected to the second compressor (7) and transmits power to form a gas turbine type combined cycle heat pump system.

8. A gas turbine-type combined cycle heat pump system is formed by adding a two-phase expander (16) to replace the throttle valve (9) in any of the gas turbine-type combined cycle heat pump systems described in claims 1-7. The two-phase expander (16) is connected to a second compressor (7) and transmits power to form a gas turbine-type combined cycle heat pump system.

9. A gas turbine-type combined cycle heat pump system is formed by adding a nozzle (17) and replacing the throttle valve (9) to any of the gas turbine-type combined cycle heat pump systems described in claims 1-7, and adding a dual-energy compressor (18) and replacing the second compressor (7).

10. A gas turbine-type combined cycle heat pump system is formed by adding a nozzle (17) to replace the throttle valve (9) in any of the gas turbine-type combined cycle heat pump systems described in claims 6-7, adding a dual-energy compressor (18) to replace the second compressor (7), and adding an expander speed increaser (19) to replace the expander (13).

11. A gas turbine-type combined cycle heat pump system is a gas turbine-type combined cycle heat pump system according to any one of claims 1-4, with the addition of a nozzle and a steam distribution chamber. The condensate pipe of the heater (8) is connected to the evaporator (10) through a throttle valve (9), and the condensate pipe of the heater (8) is connected to the steam distribution chamber (20) through the nozzle (17). The steam distribution chamber (20) also has a refrigerant vapor passage connected to the second compressor (7) through an intermediate port. The steam distribution chamber (20) also has a condensate pipe connected to the evaporator (10) after passing through the throttle valve (9), thus forming a gas turbine-type combined cycle heat pump system.

12. A gas turbine-type combined cycle heat pump system is a gas turbine-type combined cycle heat pump system according to any one of claims 1-4, wherein a regenerator, a nozzle, and a steam distribution chamber are added, the evaporator (10) is adjusted to have a refrigerant vapor passage connected to the second compressor (7) and the evaporator (10) is connected to the second compressor (7) via the regenerator (12), the heater (8) is adjusted to have a condensate pipe connected to the evaporator (10) via the throttle valve (9) and the heater (8) is connected to the steam distribution chamber (20) via the nozzle (17), the steam distribution chamber (20) also has a refrigerant vapor passage connected to the second compressor (7) through an intermediate port, and the steam distribution chamber (20) also has a condensate pipe connected to the evaporator (10) after passing through the regenerator (12) and the throttle valve (9), thus forming a gas turbine-type combined cycle heat pump system.

13. A gas turbine-type combined cycle heat pump system is formed by adding a second nozzle (21) to replace the throttle valve (9) and adding a dual-energy compressor (18) to replace the second compressor (7) in any of the gas turbine-type combined cycle heat pump systems described in claims 11-12, thereby forming a gas turbine-type combined cycle heat pump system.

14. A gas turbine-type combined cycle heat pump system is formed by adding a new heater (A) to any of the gas turbine-type combined cycle heat pump systems described in claims 1-13, adjusting the steam generator (4) from having a gas passage connected to the outside to having a gas passage connected to the new heater (A) and then connected to the outside, and the new heater (A) also having a heated medium passage connected to the outside, thus forming a gas turbine-type combined cycle heat pump system.

15. A gas turbine-type combined cycle heat pump system is formed by adding a high-temperature heat exchanger (B) to any of the gas turbine-type combined cycle heat pump systems described in claims 1-14, changing the air passage connecting the combustion chamber (2) to connect the high-temperature heat exchanger (B) before connecting the combustion chamber (2), and the high-temperature heat exchanger (B) also having a high-temperature heat medium passage connected to the outside, thus forming a gas turbine-type combined cycle heat pump system.

16. A gas turbine-type combined cycle heat pump system is a gas turbine-type combined cycle heat pump system according to any one of claims 1-15, wherein a heater and a heat source regenerator are added, an external fuel channel is connected to the heater (C), an external air channel is connected to the heater (C) via the heat source regenerator (D), and the heater (C) is also connected to the outside via a gas channel via the heat source regenerator (D), and the air channel connecting to the combustion chamber (2) is changed to connect to the heater (C) and then to the combustion chamber (2), thus forming a gas turbine-type combined cycle heat pump system.

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