Energy coupled combined cycle heat pump system

Abstract

The application provides an energy-carrying combined cycle heat pump system and belongs to the technical field of heat pumps. The system comprises a low-grade fuel passage, a fuel passage, an air passage, a primary-stage gas passage, a gas passage, an evaporator, a heater, a booster pump, a throttle valve, a steam generator, an ejector, a circulating working medium passage, a low-temperature heat medium passage, and a high-temperature heat medium passage. The low-grade fuel passage is connected with a low-temperature combustion chamber. The fuel passage is connected with a high-temperature combustion chamber. The air passage is connected with the low-temperature combustion chamber through a compressor. The low-temperature combustion chamber is connected with the high-temperature combustion chamber through the primary-stage gas passage. The high-temperature combustion chamber is connected with the outside through the gas passage. The evaporator is connected with the ejector through the circulating working medium passage. The steam generator is connected with the ejector through the high-pressure steam inlet. The ejector is connected with the heater through the medium-pressure cold steam passage. The heater is connected with the steam generator through the booster pump and is connected with the evaporator through the throttle valve. The heater is connected with the outside through the high-temperature heat medium passage. The evaporator is connected with the outside through the low-temperature heat medium passage. The gas turbine is connected with the compressor and the second compressor and transmits power, thereby forming the energy-carrying combined cycle heat pump system.

Description

Technical fields:

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

[0002] Using heat pump technology to provide cooling / heating / steam is an important means of achieving 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] 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 a challenging technical problem.

[0004] 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.

[0005] 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, and gas production presents a significant technical challenge.

[0006] Based on the fundamental principle of simple and efficient use of high-quality fuels for refrigeration / heating / steam production, this invention presents an energy-integrated combined cycle heat pump system that integrates technologies, has a reasonable process, a simple structure, and achieves high energy efficiency and high-value utilization. Summary of the Invention:

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

[0008] 1. The combined cycle heat pump system mainly consists of a compressor, a low-temperature combustion chamber, a high-temperature combustion chamber, a gas turbine, a steam generator, a second compressor, an ejector, a heater, a booster pump, a throttling valve, and an evaporator. Externally, it has a low-grade fuel passage connecting to the low-temperature combustion chamber, an external fuel passage connecting to the high-temperature combustion chamber, an external air passage connecting to the compressor, an air passage connecting the compressor to the low-temperature combustion chamber, an initial gas passage connecting the low-temperature combustion chamber to the high-temperature combustion chamber, a gas passage connecting the high-temperature combustion chamber to the gas turbine, and a gas passage connecting the gas turbine to the steam generator before connecting to the external system. The evaporator has a circulating working fluid channel connected to the second compressor. The second compressor also has a circulating working fluid channel connected to the low-pressure steam inlet of the ejector. The steam generator has a working steam channel connected to the high-pressure steam inlet of the ejector. The ejector also has a medium-pressure refrigerant steam channel connected to the heater. The heater also has a condensate pipeline connected to the steam generator via a booster pump. The heater also has a condensate pipeline connected to the evaporator via a throttling valve. The heater also has a heated medium channel connected to the outside. The evaporator also has a low-temperature heat medium channel connected to the outside. The gas turbine connects to the compressor and the second compressor and transmits power, forming an energy-carrying combined cycle heat pump system.

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

[0010] 3. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system described in item 1, with the addition of a high-temperature regenerator. The compressor's connection from an air passage to a low-temperature combustion chamber is adjusted to a connection between the compressor's air passage and the low-temperature combustion chamber via the high-temperature regenerator; or the connection between the low-temperature combustion chamber's initial gas passage and the high-temperature combustion chamber is adjusted to a connection between the low-temperature combustion chamber's initial gas passage and the high-temperature regenerator; the gas turbine's connection from a gas passage to a steam generator is adjusted to a connection between the gas turbine and itself via the high-temperature regenerator, and then the gas turbine has a gas passage connecting to the steam generator, thus forming an energy-carrying combined cycle heat pump system.

[0011] 4. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system described in item 1, with the addition of a high-temperature regenerator. The compressor is modified so that the air passage connecting it to the low-temperature combustion chamber is changed to the compressor having an air passage connected to itself via the high-temperature regenerator, and then the compressor having an air passage connected to the low-temperature combustion chamber. The gas turbine is modified so that the gas turbine has a gas passage connected to the steam generator via the high-temperature regenerator, thus forming an energy-carrying combined cycle heat pump system.

[0012] 5. An energy-carrying combined cycle heat pump system is formed by adding a low-temperature regenerator to any of the energy-carrying combined cycle heat pump systems described in items 1-4. The evaporator is modified so that the circulating working fluid channel is connected to the second compressor, and the circulating working fluid channel is connected to the second compressor via the low-temperature regenerator. The condensate pipeline of the heater is modified so that the condensate pipeline is connected to the evaporator via the low-temperature regenerator and the throttling valve, thus forming an energy-carrying combined cycle heat pump system.

[0013] 6. An energy-integrated combined cycle heat pump system is constructed by adding a low-temperature regenerator, an expander, and a second heater to any of the energy-integrated combined cycle heat pump systems described in items 1-4. The second compressor is modified so that its circulating working fluid channel connects to the low-pressure steam inlet of the ejector. Instead, the second compressor has a circulating working fluid channel connecting to the second heater, which then splits into two paths: the first path connects to the low-pressure steam inlet of the ejector, and the second path connects to the expander. The expander also has a circulating working fluid channel connecting to the low-temperature regenerator, which then connects to the second compressor via an intermediate port. The heater has a condensate pipeline connected to the evaporator via a throttling valve, modified so that the heater has a refrigerant medium pipeline (either fully condensed or partially condensed) connected to the evaporator via the low-temperature regenerator and the throttling valve. The second heater also has a heated medium channel connected to the outside. The expander connects to the second compressor and transmits power, thus forming an energy-integrated combined cycle heat pump system.

[0014] 7. An energy-integrated combined cycle heat pump system, comprising any one of the energy-integrated combined cycle heat pump systems described in items 1-4, with the addition of a low-temperature regenerator, an expander, a second heater, and a second low-temperature regenerator. The evaporator is configured to have a circulating working fluid channel connected to the second compressor, which is then adjusted to have a circulating working fluid channel connected to the second compressor via the second low-temperature regenerator. The second compressor is configured to have a circulating working fluid channel connected to the low-pressure steam inlet of the ejector, which is then adjusted to have a circulating working fluid channel connected to the second heater, which is then split into two paths—the first path connects to the low-pressure steam inlet of the ejector, and the second path connects to the expander. The expander also has a circulating working fluid channel connected to the low-temperature regenerator, which is then connected to the second compressor via an intermediate port. The heater has a condensate pipeline connected to the evaporator via a throttling valve, which is adjusted to have a fully condensed or partially condensed refrigerant medium pipeline connected to the evaporator via the low-temperature regenerator, the second low-temperature regenerator, and the throttling valve. The second heater also has a heated medium channel connected to the outside. The expander connects to the second compressor and transmits power, thus forming an energy-integrated combined cycle heat pump system.

[0015] 8. An energy-carrying combined cycle heat pump system is formed by adding a two-phase expander to replace the throttle valve in any of the energy-carrying 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 an energy-carrying combined cycle heat pump system.

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

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

[0018] 11. An energy-carrying combined cycle heat pump system is any one of the energy-carrying 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 pipe is connected to the evaporator via a throttling valve, and the heating unit has a condensate pipe connected 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 pipe connected to the evaporator via a throttling valve, thus forming an energy-carrying combined cycle heat pump system.

[0019] 12. An energy-integrated combined cycle heat pump system is formed by adding a low-temperature regenerator, a nozzle, and a steam distribution chamber to any of the energy-integrated combined cycle heat pump systems described in items 1-4. The evaporator is modified from having a circulating working fluid channel connected to the second compressor to having a circulating working fluid channel connected to the second compressor via the low-temperature regenerator. The heater is modified from having a condensate line connected to the evaporator via a throttling valve to having a condensate line connected to the steam distribution chamber via a nozzle. The steam distribution chamber also has a refrigerant vapor channel connected to the second compressor via an intermediate port. The steam distribution chamber also has a condensate line connected to the evaporator via the low-temperature regenerator and the throttling valve, thus forming an energy-integrated combined cycle heat pump system.

[0020] 13. An energy-carrying 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 energy-carrying combined cycle heat pump systems described in items 11-12, thereby forming an energy-carrying combined cycle heat pump system.

[0021] 14. An energy-carrying combined cycle heat pump system is any one of the energy-carrying combined cycle heat pump systems described in items 1-5 and 11-13, with the addition of a second booster pump and a second ejector. An external liquid medium pipeline connects to the steam generator via the second booster pump, and the steam generator then has a steam channel connecting to the high-pressure steam inlet of the second ejector. The heating unit is adjusted from having a heated medium channel connected to the outside to having a heated medium channel connected to the low-pressure steam inlet of the second ejector via the heating unit. The second ejector also has a user steam channel connected to the outside, thus forming an energy-carrying combined cycle heat pump system.

[0022] 15. An energy-carrying combined cycle heat pump system is any one of the energy-carrying combined cycle heat pump systems described in items 6-7 and 10, with the addition of a second booster pump and a second ejector. An external liquid medium pipeline connects to the steam generator via the second booster pump, and the steam generator then has a steam channel connecting to the high-pressure steam inlet of the second ejector. The heating medium channels of the heater and the second heater are adjusted to connect to the outside, with the external heating medium channel connecting to the low-pressure steam inlet of the second ejector via the heater and the second heater. The second ejector also has a user steam channel connecting to the outside, thus forming an energy-carrying combined cycle heat pump system.

[0023] 16. An energy-carrying combined cycle heat pump system is any one of the energy-carrying combined cycle heat pump systems described in items 1-15, 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 outside via the new heater, and the new heater also having a heated medium passage connected to the outside, forming a combined cycle heat and power system. Attached image description:

[0024] Figure 1This is a principle thermal system diagram of an energy-carrying combined cycle heat pump system provided by the present invention.

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

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

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

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

[0029] Figure 6 This is the sixth principle thermal system diagram of the energy-carrying combined cycle heat pump system provided by the present invention.

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

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

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

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

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

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

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

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

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

[0039] In the diagram, 1-compressor, 2-low temperature combustion chamber, 3-high temperature combustion chamber, 4-gas turbine, 5-steam generator, 6-second compressor, 7-injector, 8-heater, 9-boost pump, 10-throttle valve, 11-evaporator, 12-high temperature regenerator, 13-low temperature regenerator, 14-expander, 15-second heater, 16-second low temperature regenerator, 17-two-phase expander, 18-nozzle, 19-dual-energy compressor, 20-expander speed increaser, 21-steam separator, 22-second nozzle, 23-second boost pump, 24-second injector, A-new heater. Detailed implementation method:

[0040] 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.

[0041] Figure 1 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0042] (1) Structurally, it mainly consists of a compressor, a low-temperature combustion chamber, a high-temperature combustion chamber, a gas turbine, a steam generator, a second compressor, an injector, a heater, a booster pump, a throttle valve, and an evaporator; externally, there is a low-grade fuel passage connecting to the low-temperature combustion chamber 2, an external fuel passage connecting to the high-temperature combustion chamber 3, an external air passage connecting to the compressor 1, the compressor 1 also has an air passage connecting to the low-temperature combustion chamber 2, the low-temperature combustion chamber 2 also has an initial gas passage connecting to the high-temperature combustion chamber 3, the high-temperature combustion chamber 3 also has a gas passage connecting to the gas turbine 4, the gas turbine 4 also has a gas passage connecting to the steam generator 5 and then connecting to the outside, steam... Steam generator 11 has a circulating working fluid channel connected to the second compressor 6. The second compressor 6 also has a circulating working fluid channel connected to the low-pressure steam inlet of ejector 7. Steam generator 5 has a working steam channel connected to the high-pressure steam inlet of ejector 7. Ejector 7 also has a medium-pressure refrigerant steam channel connected to heater 8. Heater 8 also has a condensate pipeline connected to steam generator 5 via booster pump 9. Heater 8 also has a condensate pipeline connected to evaporator 11 via throttle valve 10. Heater 8 also has a heated medium channel connected to the outside. Evaporator 11 also has a low-temperature heat medium channel connected to the outside. Gas turbine 4 connects compressor 1 and second compressor 6 and transmits power.

[0043] (2) In terms of process, external air flows through compressor 1 to increase pressure and temperature before entering low-temperature combustion chamber 2. External low-grade fuel also enters low-temperature combustion chamber 2. Fuel and compressed air mix and burn in low-temperature combustion chamber 2 to form oxygen-rich primary combustion gas. Primary combustion gas enters high-temperature combustion chamber 3. External fuel also enters high-temperature combustion chamber 3. Fuel and primary combustion gas mix and burn in high-temperature combustion chamber 3 to form high-temperature combustion gas, which then enters gas turbine 4 to reduce pressure and perform work. The gas discharged from gas turbine 4 flows through steam generator 5 to release heat and reduce temperature before being discharged to the outside. The circulating working fluid (refrigerant steam) discharged from the second compressor 6 is supplied to injector 7. Steam generated by steam generator 5 enters injector 7 through high-pressure steam inlet. High-pressure steam flows through nozzle to reduce pressure and increase speed to form low pressure. Refrigerant steam discharged from the second compressor 6 is drawn into the low-pressure zone of injector 7. After the two steam streams mix, they flow through diffuser to reduce speed and increase pressure to form medium-pressure refrigerant steam and are then fed to the heater. 8 provides: Medium-pressure refrigerant vapor enters the heater 8 to release heat and condense, then splits into two paths—the first path flows through the booster pump 9 for pressurization and then enters the steam generator 5 for heat absorption and vaporization; the second path flows through the throttle valve 10 for pressure and temperature reduction, flows through the evaporator 11 for heat absorption and vaporization, and then enters the second compressor 6 for pressure and temperature increase; Low-grade fuel provides driving heat load through the low-temperature combustion chamber 2, fuel provides driving heat load through the high-temperature combustion chamber 3, air and gas carry away the emission heat load through the inlet and outlet processes, low-temperature heat medium provides low-temperature heat load through the evaporator 11, and the heated medium obtains medium-temperature heat load through the heater 8; The mechanical energy output by the gas turbine 4 provides power to the compressor 1 and the second compressor 6, or the mechanical energy output by the gas turbine 4 provides power to the compressor 1, the second compressor 6 and the outside, or the gas turbine 4 and the outside jointly provide power to the compressor 1 and the second compressor 6, forming an energy-carrying combined cycle heat pump system.

[0044] Figure 2 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0045] (1) Structurally, in Figure 1 In the energy-carrying combined cycle heat pump system shown, a high-temperature regenerator is added, and the air passage of compressor 1 is connected to the low-temperature combustion chamber 2 is adjusted to the air passage of compressor 1 connected to the low-temperature combustion chamber 2 via the high-temperature regenerator 12. The gas turbine 4 is connected to the steam generator 5 via the gas passage of gas turbine 4 connected to the steam generator 5 via the high-temperature regenerator 12.

[0046] (2) In terms of process, with Figure 1Compared to the energy-carrying combined cycle heat pump system shown, the difference is that the compressed air discharged from the compressor 1 flows through the high-temperature regenerator 12 to absorb heat and increase its temperature, and then enters the low-temperature combustion chamber 2 to participate in combustion; the gas discharged from the gas turbine flows through the high-temperature regenerator 12 and the steam generator 5 to gradually release heat and decrease its temperature, and then is discharged to the outside, forming an energy-carrying combined cycle heat pump system.

[0047] Figure 3 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0048] (1) Structurally, in Figure 1 In the energy-carrying combined cycle heat pump system shown, a high-temperature regenerator is added. The connection between the low-temperature combustion chamber 2 and the high-temperature combustion chamber 3 is adjusted so that the low-temperature combustion chamber 2 has an initial gas passage that connects to the high-temperature combustion chamber 3 via the high-temperature regenerator 12. The connection between the gas turbine 4 and the steam generator 5 is adjusted so that the gas turbine 4 has a gas passage that connects to itself via the high-temperature regenerator 12, and then the gas turbine 4 has a gas passage that connects to the steam generator 5.

[0049] (2) In terms of process, with Figure 1 Compared with the energy-carrying combined cycle heat pump system shown, the difference is that: the initial gas emitted from the low-temperature combustion chamber 2 flows through the high-temperature regenerator 12 to absorb heat and increase its temperature, and then enters the high-temperature combustion chamber 3 to participate in combustion; the high-temperature gas emitted from the high-temperature combustion chamber 3 enters the gas turbine 4 to reduce pressure and do work, and after reaching a certain level, it flows through the high-temperature regenerator 12 to release heat and reduce its temperature, and then enters the gas turbine 4 to continue to reduce pressure and do work, and then flows through the steam generator 5 to release heat, reduce its temperature and discharge to the outside, thus forming the energy-carrying combined cycle heat pump system.

[0050] Figure 4 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0051] (1) Structurally, in Figure 1 In the energy-carrying 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 low-temperature combustion chamber 2 to having an air passage connected to itself via the high-temperature regenerator 12, and then having an air passage connected to the low-temperature combustion chamber 2. The gas turbine 4 is changed from having a gas passage connected to the steam generator 5 to having a gas passage connected to the steam generator 5 via the high-temperature regenerator 12.

[0052] (2) In terms of process, with Figure 1Compared to the energy-carrying combined cycle heat pump system shown, the difference is that: external air enters the compressor 1 and is pressurized and heated. After reaching a certain level, it flows through the high-temperature regenerator 12 to absorb heat and be heated. It then enters the compressor 1 to continue to be pressurized and heated, and then enters the low-temperature combustion chamber 2 to participate in combustion. The gas emitted by the gas turbine flows through the high-temperature regenerator 12 and the steam generator 5 to gradually release heat and cool down, and then is discharged to the outside, forming an energy-carrying combined cycle heat pump system.

[0053] Figure 5 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0054] (1) Structurally, in Figure 1 In the energy-carrying combined cycle heat pump system shown, a low-temperature regenerator 13 is added. The evaporator 11 is adjusted so that the circulating working fluid channel is connected to the second compressor 6 via the low-temperature regenerator 13. The heater 8 is adjusted so that the condensate pipeline is connected to the evaporator 11 via the throttling valve 10. The heater 8 is adjusted so that the condensate pipeline is connected to the evaporator 11 via the low-temperature regenerator 13 and the throttling valve 10.

[0055] (2) In terms of process, with Figure 1 Compared with the energy-carrying combined cycle heat pump system shown, the difference is that the condensate discharged from the heater 8 flows through the low-temperature regenerator 13 to release heat and cool down, flows through the throttling valve 10 to reduce pressure and temperature, flows through the evaporator 11 to absorb heat and vaporize, flows through the low-temperature regenerator 13 to absorb heat and increase temperature, and then enters the second compressor 6 to increase pressure and temperature, forming the energy-carrying combined cycle heat pump system.

[0056] Figure 6 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0057] (1) Structurally, in Figure 1 In the energy-carrying combined cycle heat pump system shown, a low-temperature regenerator, an expander, and a second heater are added. The second compressor 6 is adjusted so that its circulating working fluid channel is connected to the low-pressure steam inlet of the ejector 7, and then the circulating working fluid channel of the second heater 15 is connected to the second heater 15. The second channel is then split into two paths: the first path is connected to the low-pressure steam inlet of the ejector 7, and the second path is connected to the expander 14. The expander 14 also has a circulating working fluid channel connected to the low-temperature regenerator 13, and then connected to the second compressor 6 through an intermediate port. The heater 8 is adjusted so that its condensate pipeline is connected to the evaporator 11 through the throttling valve 10, and then the heater 8 has a refrigerant medium pipeline that is either fully condensed or partially condensed, which is connected to the evaporator 11 through the low-temperature regenerator 13 and the throttling valve 10. The second heater 15 also has a heated medium channel connected to the outside. The expander 14 is connected to the second compressor 6 and transmits power.

[0058] (2) In terms of process, with Figure 1Compared to the energy-carrying combined cycle heat pump system shown, the difference lies in the following: the circulating working fluid discharged from the second compressor 6 flows through the second heater 15 to release heat and cool down, and then splits into two paths—the first path is supplied to the ejector 7, and the second path flows through the expander 14 to reduce pressure and do work, flows through the low-temperature regenerator 13 to absorb heat and heat up, and enters the second compressor 6 through the intermediate air inlet port to increase pressure and temperature; the medium-pressure steam discharged from the ejector 7 enters the heater 8 to release heat and becomes a completely condensed or partially condensed refrigerant medium, and then splits into two paths—the first path flows through the booster pump 9 to increase pressure and enters the steam generator 5 to absorb heat and vaporize, and the second path flows through the low-temperature regenerator 13 to release heat, flows through the throttle valve 10 to reduce pressure and cool down, flows through the evaporator 11 to absorb heat and vaporize, and then enters the second compressor 6 to increase pressure and temperature; the heated medium obtains a medium-temperature heat load through the second heater 15, and the mechanical energy output from the expander 14 is provided to the second compressor 6 to provide power, forming an energy-carrying combined cycle heat pump system.

[0059] Figure 7 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0060] (1) Structurally, in Figure 1 In the energy-carrying combined cycle heat pump system shown, a low-temperature regenerator, an expander, a second heater, and a second low-temperature regenerator are added. The evaporator 11, which previously had a circulating working fluid channel connected to the second compressor 6, is now connected to the second compressor 6 via the second low-temperature regenerator 16. The second compressor 6, which previously had a circulating working fluid channel connected to the low-pressure steam inlet of the ejector 7, is now connected to the second heater 15 via a circulating working fluid channel, and then splits into two paths—the first path connects to the low-pressure steam inlet of the ejector 7. The second expander 14 is connected to the second circuit. The expander 14 also has a circulating working fluid channel connected to the low-temperature regenerator 13 and then connected to the second compressor 6 through the intermediate port. The condensate pipeline of the heater 8 is connected to the evaporator 11 through the throttle valve 10. The heater 8 is adjusted to have a refrigerant medium pipeline that is fully condensed or not fully condensed, which is connected to the evaporator 11 through the low-temperature regenerator 13, the second low-temperature regenerator 16 and the throttle valve 10. The second heater 15 also has a heated medium channel connected to the outside. The expander 14 is connected to the second compressor 6 and transmits power.

[0061] (2) In terms of process, with Figure 1Compared to the combined cycle heat pump system, the energy source shown differs in that: the circulating working fluid discharged from the second compressor 6 flows through the second heater 15 to release heat and cool down, then splits into two paths—the first path supplies the ejector 7, and the second path flows through the expander 14 to reduce pressure and perform work, flows through the low-temperature regenerator 13 to absorb heat and heat up, and enters the second compressor 6 through the intermediate air inlet port to increase pressure and temperature; the medium-pressure steam discharged from the ejector 7 enters the heater 8 to release heat and becomes a refrigerant medium that is either completely condensed or partially condensed, then splits into two paths— The first stream flows through the booster pump 9 for pressurization and then enters the steam generator 5 to absorb heat and vaporize. The second stream flows through the low-temperature regenerator 13 and the second low-temperature regenerator 16, gradually releasing heat. It then flows through the throttling valve 10 to reduce pressure and temperature, flows through the evaporator 11 to absorb heat and vaporize, flows through the second low-temperature regenerator 16 to absorb heat and increase temperature, and then enters the second compressor 6 to increase pressure and temperature. The heated medium obtains a medium-temperature heat load through the second heater 15, and the mechanical energy output by the expander 14 provides power to the second compressor 6, forming an energy-carrying combined cycle heat pump system.

[0062] Figure 8 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0063] (1) Structurally, in Figure 1 In the energy-carrying combined cycle heat pump system shown, a two-phase expander 17 is added and replaces the throttle valve 10. The two-phase expander 17 is connected to the second compressor 6 and transmits power.

[0064] (2) In terms of process, with Figure 1 Compared to the energy-carrying combined cycle heat pump system shown, the difference is that the condensate discharged from the heater 8 flows through the two-phase expander 17 to reduce pressure and do work, and then enters the evaporator 11 to absorb heat and vaporize; the mechanical energy output by the two-phase expander 17 is provided to the second compressor 6 to provide power, forming an energy-carrying combined cycle heat pump system.

[0065] Figure 9 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0066] (1) Structurally, in Figure 1 In the energy-carrying combined cycle heat pump system shown, a nozzle 18 is added and replaces the throttle valve 10, and a dual-energy compressor 19 is added and replaces the second compressor 6.

[0067] (2) In terms of process, with Figure 1 Compared to the energy-carrying combined cycle heat pump system shown, the difference is that the condensate discharged from the heater 8 flows through the nozzle 18 to reduce pressure and increase speed, flows through the evaporator 11 to absorb heat and vaporize, and then enters the dual-energy compressor 19 to increase pressure and temperature and reduce speed, forming an energy-carrying combined cycle heat pump system.

[0068] Figure 10The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0069] (1) Structurally, in Figure 7 In the energy-carrying combined cycle heat pump system shown, a nozzle 18 is added and replaces the throttle valve 10, a dual-energy compressor 19 is added and replaces the second compressor 6, and an expander accelerator 20 is added and replaces the expander 14.

[0070] (2) In terms of process, with Figure 7 Compared to the energy-carrying combined cycle heat pump system shown, the difference lies in the following: the condensate discharged from the second low-temperature regenerator 16 flows through the nozzle 18 to reduce pressure and increase speed, flows through the evaporator 11 to absorb heat and vaporize, flows through the second low-temperature regenerator 16 to absorb heat and increase temperature, and then enters the dual-energy compressor 19 to increase pressure and temperature and decrease speed; the refrigerant vapor discharged from the second heater 15 is divided into two paths - the first path is provided to the ejector 7, and the second path flows through the expander accelerator 20 to reduce pressure and do work and increase speed, flows through the regenerator 13 to absorb heat and increase temperature, and enters the dual-energy compressor 19 to increase pressure and temperature and decrease speed, forming an energy-carrying combined cycle heat pump system.

[0071] Figure 11 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0072] (1) Structurally, in Figure 1 In the energy-carrying combined cycle heat pump system shown, a nozzle and a steam distribution chamber are added. The condensate pipe of the heater 8 is connected to the evaporator 11 through the throttling valve 10. The heater 8 is then connected to the steam distribution chamber 21 through the nozzle 18. The steam distribution chamber 21 also has a refrigerant vapor passage connected to the second compressor 6 through an intermediate port. The steam distribution chamber 21 also has a condensate pipe connected to the evaporator 11 through the throttling valve 10.

[0073] (2) In terms of process, with Figure 1 Compared to the energy-carrying combined cycle heat pump system shown, the difference is that: the condensate discharged from the heater 8 flows through the nozzle 18 to reduce pressure and increase speed, and then enters the steam separator 21 for gas-liquid separation; the refrigerant vapor discharged from the steam separator 21 enters the second compressor 6 through the intermediate port to increase pressure and temperature, and the condensate discharged from the steam separator 21 flows through the throttle valve 10 to reduce pressure and temperature and then enters the evaporator 11 to absorb heat and vaporize, forming the energy-carrying combined cycle heat pump system.

[0074] Figure 12 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0075] (1) Structurally, in Figure 1In the energy-carrying combined cycle heat pump system shown, a low-temperature regenerator, a nozzle, and a steam distribution chamber are added. The evaporator 11, which was previously connected to the second compressor 6 via a circulating working fluid channel, is now connected to the second compressor 6 via the low-temperature regenerator 13. The heater 8, which was previously connected to the evaporator 11 via a throttling valve 10, is now connected to the steam distribution chamber 21 via a nozzle 18. The steam distribution chamber 21 also has a refrigerant vapor channel connected to the second compressor 6 via an intermediate port. Furthermore, the steam distribution chamber 21 also has a condensate channel connected to the evaporator 11 via the low-temperature regenerator 13 and the throttling valve 10.

[0076] (2) In terms of process, with Figure 1 Compared to the energy-carrying combined cycle heat pump system shown, the difference lies in the following: the condensate discharged from the heater 8 flows through the nozzle 18 to reduce pressure and increase speed, and then enters the steam separator 21 for gas-liquid separation; the refrigerant vapor discharged from the steam separator 21 enters the second compressor 6 through the intermediate port to increase pressure and temperature; the condensate discharged from the steam separator 21 flows through the low-temperature regenerator 13 to release heat and reduce temperature, flows through the throttling valve 10 to reduce pressure and reduce temperature, flows through the evaporator 11 to absorb heat and vaporize, flows through the low-temperature regenerator 13 to absorb heat and increase temperature, and then enters the second compressor 6 to increase pressure and increase temperature, thus forming the energy-carrying combined cycle heat pump system.

[0077] Figure 13 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0078] (1) Structurally, in Figure 12 In the energy-carrying combined cycle heat pump system shown, a second nozzle 22 is added and replaces the throttle valve 10, and a dual-energy compressor 19 is added and replaces the second compressor 6.

[0079] (2) In terms of process, with Figure 12 Compared to the energy-carrying combined cycle heat pump system shown, the difference is that the condensate discharged from the low-temperature regenerator 13 flows through the second nozzle 22 to reduce pressure and increase speed, flows through the evaporator 11 to absorb heat and vaporize, flows through the low-temperature regenerator 13 to absorb heat and increase temperature, and then enters the dual-energy compressor 19 to increase pressure and temperature and reduce speed, forming an energy-carrying combined cycle heat pump system.

[0080] Figure 14 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0081] (1) Structurally, in Figure 1In the energy-carrying combined cycle heat pump system shown, a second booster pump and a second ejector are added. An external liquid medium pipeline connects to the steam generator 5 via the second booster pump 23. The steam generator 5 then has a steam channel connecting to the high-pressure steam inlet of the second ejector 24. The heating unit 8 is adjusted from having a heated medium channel connected to the outside to having a heated medium channel connected to the low-pressure steam inlet of the second ejector 24 via the heating unit 8. The second ejector 24 also has a user steam channel connected to the outside.

[0082] (2) In terms of process, with Figure 1 Compared to the energy-carrying combined cycle heat pump system shown, the difference lies in the following: the external liquid medium flows through the second booster pump 23 to increase its pressure, flows through the steam generator 5 to absorb heat and vaporize, and then enters the second ejector 24 through the high-pressure steam inlet. The heated medium flows through the heater 8 to absorb heat and vaporize, and then enters the second ejector 24 through the low-pressure steam inlet. The high-pressure steam flows through the nozzle to decrease its pressure and increase its speed to form a low-pressure system. The steam discharged from the heater 8 is drawn into the low-pressure zone of the second ejector 24. After the two steam streams are mixed, they flow through the diffuser to decrease their speed and increase their pressure to form medium-pressure steam, which is then supplied to the steam user, thus forming the energy-carrying combined cycle heat pump system.

[0083] Figure 15 The energy-carrying combined cycle heat pump system shown is implemented as follows:

[0084] (1) Structurally, in Figure 1 In the energy-carrying combined cycle heat pump system shown, a new heater A is added, and the steam generator 5 is changed from having a gas passage connecting it to the outside to having a gas passage connecting it to the outside via the new heater A. The new heater A also has a heated medium passage connecting it to the outside.

[0085] (2) In terms of process, with Figure 1 Compared with the energy-carrying combined cycle heat pump system shown, the difference is that the gas emitted by the gas turbine 4 flows through the steam generator 5 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 an energy-carrying combined cycle heat pump system.

[0086] The effects achievable by this invention—the energy-carrying combined cycle heat pump system proposed in this invention has the following effects and advantages:

[0087] (1) New ideas and technologies for utilizing temperature difference are presented.

[0088] (2) New technologies for the efficient and high-value utilization of high-quality fuels in refrigeration / heating / steam production and combined cooling, heating and power systems are presented.

[0089] (3) When necessary, external power can be used to raise the temperature of thermal energy, which is flexible and adaptable.

[0090] (4) Low-grade fuels can be used efficiently and with high-value fuels, significantly improving energy efficiency and economy.

[0091] (5) The compressor and the ejector work together to increase the pressure of the circulating working fluid, which significantly improves the heating parameters or reduces the compressor's pressure increase share.

[0092] (6) Provide reasonable regeneration technology to effectively improve the coordination of the device in terms of load, performance index, and pressure ratio.

[0093] (7) The injector enables efficient utilization of gas emission heat load and temperature increase of low temperature heat load, relatively reduces the size of the compressor, and effectively reduces the manufacturing cost of the device; the process is reasonable and the structure is simple, which effectively improves the economy of the system.

[0094] (8) It expands the heat pump technology / heat-powered combined supply technology / heat-powered combined use technology, which is conducive to better realizing the efficient and high-value utilization of energy.

[0095] (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 value of energy-integrated combined cycle heat pump system technology.

Claims

1. The combined cycle heat pump system mainly consists of a compressor, a low-temperature combustion chamber, a high-temperature combustion chamber, a gas turbine, a steam generator, a second compressor, an ejector, a heater, a booster pump, a throttle valve, and an evaporator. It has an external low-grade fuel passage connected to the low-temperature combustion chamber (2), an external fuel passage connected to the high-temperature combustion chamber (3), an external air passage connected to the compressor (1), an air passage connected to the low-temperature combustion chamber (2), an initial gas passage connected to the high-temperature combustion chamber (3), a gas passage connected to the gas turbine (4), a gas passage connected to the steam generator (5), and then connected to the outside. The evaporator (11) has a circulating working fluid passage. The gas turbine (4) is connected to the second compressor (6), and the second compressor (6) also has a circulating working fluid channel connected to the low-pressure steam inlet of the ejector (7). The steam generator (5) has a working steam channel connected to the high-pressure steam inlet of the ejector (7). The ejector (7) also has a medium-pressure refrigerant steam channel connected to the heater (8). The heater (8) also has a condensate pipeline connected to the steam generator (5) via a booster pump (9). The heater (8) also has a condensate pipeline connected to the evaporator (11) via a throttle valve (10). The heater (8) also has a heated medium channel connected to the outside. The evaporator (11) also has a low-temperature heat medium channel connected to the outside. The gas turbine (4) connects to the compressor (1) and the second compressor (6) and transmits power, forming an energy-carrying combined cycle heat pump system.

2. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system as described in claim 1, wherein a high-temperature regenerator is added, and the compressor (1) is connected to the low-temperature combustion chamber (2) via an air passage, or the low-temperature combustion chamber (2) is connected to the high-temperature combustion chamber (3) via an initial gas passage, or the low-temperature combustion chamber (2) is connected to the high-temperature combustion chamber (3) via an initial gas passage, or the low-temperature combustion chamber (2) is connected to the high-temperature combustion chamber (3) via an initial gas passage, or the gas turbine (4) is connected to the steam generator (5) via a gas passage, or the gas turbine (4) is connected to the steam generator (5) via a high-temperature regenerator (12), thus forming an energy-carrying combined cycle heat pump system.

3. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system as described in claim 1, wherein a high-temperature regenerator is added, and the compressor (1) is connected to the low-temperature combustion chamber (2) via an air passage, which is adjusted to allow the compressor (1) to have an air passage connected to the low-temperature combustion chamber (2) via the high-temperature regenerator (12), or the low-temperature combustion chamber (2) is connected to the high-temperature combustion chamber (3) via an initial gas passage, which is adjusted to allow the low-temperature combustion chamber (2) to have an initial gas passage connected to the high-temperature combustion chamber (3) via the high-temperature regenerator (12); and the gas turbine (4) is connected to the steam generator (5) via a gas passage, which is adjusted to allow the gas turbine (4) to have a gas passage connected to itself via the high-temperature regenerator (12), and then the gas turbine (4) has a gas passage connected to the steam generator (5), thus forming an energy-carrying combined cycle heat pump system.

4. An energy-carrying combined cycle heat pump system is an energy-carrying 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 low-temperature combustion chamber (2) so that the compressor (1) has an air passage connected to itself through the high-temperature regenerator (12), and then the compressor (1) has an air passage connected to the low-temperature combustion chamber (2), and the gas turbine (4) is adjusted to have a gas passage connected to the steam generator (5) so that the gas turbine (4) has a gas passage connected to the steam generator (5) through the high-temperature regenerator (12), thus forming an energy-carrying combined cycle heat pump system.

5. An energy-carrying combined cycle heat pump system is formed by adding a low-temperature regenerator (13) to any one of the energy-carrying combined cycle heat pump systems described in claims 1-4, adjusting the evaporator (11) to have a circulating working fluid channel connected to the second compressor (6) so that the evaporator (11) has a circulating working fluid channel connected to the second compressor (6) via the low-temperature regenerator (13), and adjusting the heater (8) to have a condensate pipeline connected to the evaporator (11) via the throttling valve (10) so that the heater (8) has a condensate pipeline connected to the evaporator (11) via the low-temperature regenerator (13) and the throttling valve (10), thus forming an energy-carrying combined cycle heat pump system.

6. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system according to any one of claims 1-4, with the addition of a low-temperature regenerator, an expander, and a second heater. The second compressor (6) is adjusted so that the circulating working fluid channel connecting the ejector (7) to the low-pressure steam inlet is connected to the second heater (15), and then splits into two paths—the first path connects to the low-pressure steam inlet of the ejector (7) and the second path connects to the expander (14). The expander (14) also has a circulating working fluid channel connecting to... After passing through the low-temperature regenerator (13), it is connected to the second compressor (6) through the intermediate port. The condensate pipeline of the heater (8) is connected to the evaporator (11) through the throttle valve (10). The heater (8) is adjusted to have a refrigerant medium pipeline that is fully condensed or partially condensed, which is connected to the evaporator (11) through the low-temperature regenerator (13) and the throttle valve (10). The second heater (15) also has a heated medium channel connected to the outside. The expander (14) is connected to the second compressor (6) and transmits power to form an energy-carrying combined cycle heat pump system.

7. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system according to any one of claims 1-4, wherein a low-temperature regenerator, an expander, a second heater, and a second low-temperature regenerator are added. The evaporator (11) is connected to the second compressor (6) via a circulating working fluid channel, and the evaporator (11) is connected to the second compressor (6) via the second low-temperature regenerator (16). The second compressor (6) is connected to the low-pressure steam inlet of the ejector (7) via a circulating working fluid channel, and the second compressor (6) is connected to the second heater (15) via a circulating working fluid channel, and then splits into two paths—the first path is connected to the low-pressure steam inlet of the ejector (7). The inlet and the second-path connected expander (14) are connected. The expander (14) also has a circulating working fluid channel connected to the low-temperature regenerator (13) and then connected to the second compressor (6) through the intermediate port. The condensate pipeline of the heater (8) is connected to the evaporator (11) through the throttle valve (10). The heater (8) is adjusted to have a fully condensed or partially condensed refrigerant medium pipeline connected to the evaporator (11) through the low-temperature regenerator (13), the second low-temperature regenerator (16) and the throttle valve (10). The second heater (15) also has a heated medium channel connected to the outside. The expander (14) is connected to the second compressor (6) and transmits power to form an energy-carrying combined cycle heat pump system.

8. An energy-carrying combined cycle heat pump system is formed by adding a two-phase expander (17) to replace the throttle valve (10) in any one of the energy-carrying combined cycle heat pump systems described in claims 1-7. The two-phase expander (17) is connected to a second compressor (6) and transmits power to form an energy-carrying combined cycle heat pump system.

9. An energy-carrying combined cycle heat pump system is formed by adding a nozzle (18) to replace the throttle valve (10) and adding a dual-energy compressor (19) to replace the second compressor (6) in any one of the energy-carrying combined cycle heat pump systems described in claims 1-7, thereby forming an energy-carrying combined cycle heat pump system.

10. An energy-carrying combined cycle heat pump system is formed by adding a nozzle (18) to replace the throttle valve (10), adding a dual-energy compressor (19) to replace the second compressor (6), and adding an expander speed increaser (20) to replace the expander (14) in any of the energy-carrying combined cycle heat pump systems described in claims 6-7, thereby forming an energy-carrying combined cycle heat pump system.

11. An energy-carrying combined cycle heat pump system is an energy-carrying 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 (11) through a throttle valve (10), and the heater (8) is connected to the steam distribution chamber (21) through a nozzle (18). The steam distribution chamber (21) also has a refrigerant vapor passage connected to the second compressor (6) through an intermediate port. The steam distribution chamber (21) also has a condensate pipe connected to the evaporator (11) through a throttle valve (10), thus forming an energy-carrying combined cycle heat pump system.

12. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system according to any one of claims 1-4, with the addition of a low-temperature regenerator, a nozzle, and a steam distribution chamber. The evaporator (11) is adjusted to have a circulating working fluid channel connected to the second compressor (6) and then to have a circulating working fluid channel connected to the second compressor (6) via the low-temperature regenerator (13). The heater (8) is adjusted to have a condensate pipeline connected to the evaporator (11) via a throttle valve (10) and then to have a condensate pipeline connected to the steam distribution chamber (21) via the nozzle (18). The steam distribution chamber (21) also has a refrigerant vapor channel connected to the second compressor (6) via an intermediate port. The steam distribution chamber (21) also has a condensate pipeline connected to the evaporator (11) via the low-temperature regenerator (13) and the throttle valve (10), thus forming an energy-carrying combined cycle heat pump system.

13. An energy-carrying combined cycle heat pump system is formed by adding a second nozzle (22) to replace the throttle valve (10) and adding a dual-energy compressor (19) to replace the second compressor (6) in any of the energy-carrying combined cycle heat pump systems described in claims 11-12, thereby forming an energy-carrying combined cycle heat pump system.

14. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system according to any one of claims 1-5 and 11-13, with the addition of a second booster pump and a second ejector. An external liquid medium pipeline is connected to the steam generator (5) via the second booster pump (23), and the steam generator (5) is connected to the high-pressure steam inlet of the second ejector (24) via a steam channel. The heating unit (8) is adjusted so that the heated medium channel is connected to the outside via the heating unit (8) and then to the low-pressure steam inlet of the second ejector (24). The second ejector (24) is also connected to the outside via a user steam channel, thus forming an energy-carrying combined cycle heat pump system.

15. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system according to any one of claims 6-7 and 10, with the addition of a second booster pump and a second ejector. An external liquid medium pipeline is connected to the steam generator (5) via the second booster pump (23), and the steam generator (5) is then connected to the high-pressure steam inlet of the second ejector (24) via a steam channel. The heating medium channels of the heater (8) and the second heater (15) are respectively connected to the outside, and the external heating medium channels are adjusted so that they are connected to the low-pressure steam inlet of the second ejector (24) via the heater (8) and the second heater (15). The second ejector (24) is also connected to the outside via a user steam channel, thus forming an energy-carrying combined cycle heat pump system.

16. An energy-carrying combined cycle heat pump system is an energy-carrying combined cycle heat pump system according to any one of claims 1-15, wherein a new heater (A) is added, and the steam generator (5) is adjusted to have a gas passage connected to the outside, so that the steam generator (5) has a gas passage connected to the outside through the new heater (A), and the new heater (A) also has a heated medium passage connected to the outside, forming a combined cycle heat and power system.

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