Fuel-driven flexible heat regeneration type thermodynamic device

Abstract

The invention provides a fuel-driven flexible heat regeneration type thermodynamic device, and belongs to the technical field of thermodynamics and thermodynamic. The heating furnace is communicated with the outside through a fuel channel and a heat source regenerator, the heating furnace is communicated with the outside through a fuel gas channel and the heat source regenerator, the outside is communicated with a compressor through a circulating working medium channel, and the compressor is communicated with a low-temperature expansion machine through a first circulating working medium channel and a second regenerator. The low-temperature expansion machine further communicates with the outside through a circulating working medium channel, the compressor further communicates with the expansion machine through a second circulating working medium channel via a heat regenerator and a heating furnace, and the expansion machine further communicates with the outside through a circulating working medium channel via a second heat regenerator after communicating with the expansion machine through the circulating working medium channel via the heat regenerator. And the expansion machine and the low-temperature expansion machine are connected with the compressor and transmit power, so that the fuel-driven flexible heat regeneration type thermodynamic device is formed.

Description

Technical fields:

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

[0002] Power and electricity are two basic and important needs in human life and production. In the process of realizing the conversion of thermal energy into mechanical energy in large-scale thermal power devices, the simplest possible technical measures should be adopted to achieve efficient and low-cost utilization of fuel.

[0003] Based on the fundamental principles of simple, proactive, safe, and efficient use of energy to obtain power, this invention provides a fuel-driven flexible regenerative thermal power device with a reasonable process, few regeneration links, and flexible coordination between regeneration measures to achieve efficient fuel power application. Summary of the Invention:

[0004] The main objective of this invention is to provide a fuel-driven, flexible, regenerative thermal power device. The specific contents of the invention are described in detail below:

[0005] 1. A fuel-driven flexible regenerative thermal power device mainly consists of a compressor, a regenerator, a heater, a heat source regenerator, and an expander. It has an external fuel channel connected to the heater, an external air channel connected to the heater via the heat source regenerator, a gas channel connected to the outside via the heat source regenerator, an external circulating working fluid channel connected to the compressor, a circulating working fluid channel connected to the expander via the regenerator and heater, and a second expander connected to the outside via the regenerator. The expander connects to the compressor and transmits power, forming a fuel-driven flexible regenerative thermal power device.

[0006] 2. A fuel-driven flexible regenerative thermal power unit mainly consists of a compressor, a regenerator, a heater, a heat source regenerator, an expander, and a second regenerator. It has an external fuel channel connected to the heater, an external air channel connected to the heater via the heat source regenerator, a gas channel connected to the outside via the heat source regenerator, an external circulating working fluid channel connected to the compressor, and the compressor itself connected to itself via the second regenerator. The compressor also has a circulating working fluid channel connected to the expander via the regenerator and the heater. The second expander also has a circulating working fluid channel connected to the outside via the regenerator and the second regenerator. The expander connects to the compressor and transmits power, forming a fuel-driven flexible regenerative thermal power unit.

[0007] 3. A fuel-driven flexible regenerative thermal power device mainly consists of a compressor, a regenerator, a furnace, a heat source regenerator, an expander, and a second regenerator. It has an external fuel channel connected to the furnace, an external air channel connected to the furnace via the heat source regenerator, a gas channel connected to the outside via the heat source regenerator, an external circulating working fluid channel connected to the compressor, a circulating working fluid channel connected to the expander via the second regenerator, the regenerator, and the furnace, and a circulating working fluid channel connected to the expander via the regenerator. The expander also has a circulating working fluid channel connected to itself via the regenerator, and then another circulating working fluid channel connected to the outside via the second regenerator. The expander connects to the compressor and transmits power, forming a fuel-driven flexible regenerative thermal power device.

[0008] 4. A fuel-driven flexible regenerative thermal power unit mainly consists of a compressor, a regenerator, a heater, a heat source regenerator, an expander, and a second regenerator. It has an external fuel channel connected to the heater, an external air channel connected to the heater via the heat source regenerator, a gas channel connected to the outside via the heat source regenerator, an external circulating working fluid channel connected to the compressor, and the compressor itself connected to itself via the second regenerator. The compressor also has a circulating working fluid channel connected to the expander via the regenerator and the heater. The expander also has a circulating working fluid channel connected to itself via the regenerator, and then to the outside via the second regenerator. The expander connects to the compressor and transmits power, forming a fuel-driven flexible regenerative thermal power unit.

[0009] 5. A fuel-driven flexible regenerative thermal power unit mainly consists of a compressor, a regenerator, a furnace, a heat source regenerator, an expander, a second regenerator, and a cryogenic expander. Externally, it has a fuel channel connected to the furnace, an air channel connected to the furnace via the heat source regenerator, a gas channel connected to the outside via the heat source regenerator, a circulating working fluid channel connected to the compressor, a first circulating working fluid channel connected to the cryogenic expander via the second regenerator, a circulating working fluid channel connected to the outside, a second circulating working fluid channel connected to the expander via the regenerator and the furnace, and a circulating working fluid channel connected to itself via the regenerator. The expander then has a circulating working fluid channel connected to the outside via the second regenerator. The expander and cryogenic expander are connected to the compressor and transmit power, forming a fuel-driven flexible regenerative thermal power unit.

[0010] 6. A fuel-driven flexible regenerative thermal power unit mainly consists of a compressor, a regenerator, a heater, a heat source regenerator, an expander, a second regenerator, a cryogenic expander, and a third regenerator. Externally, it has a fuel channel connected to the heater, an air channel connected to the heater via the heat source regenerator, a gas channel connected to the outside via the heat source regenerator, a circulating working fluid channel connected to the compressor, a first circulating working fluid channel connected to the cryogenic expander via the second regenerator, a circulating working fluid channel connected to the outside, a second circulating working fluid channel connected to the compressor via the third regenerator, a second circulating working fluid channel connected to the compressor via the regenerator and the heater, and a circulating working fluid channel connected to the regenerator, the third regenerator, and the second regenerator. The expander and the cryogenic expander are connected to the compressor and transmit power, forming a fuel-driven flexible regenerative thermal power unit.

[0011] 7. A fuel-driven flexible regenerative thermal power unit mainly consists of a compressor, a regenerator, a heater, a heat source regenerator, an expander, a second regenerator, a cryogenic expander, and a third regenerator. Externally, it has a fuel channel connected to the heater, an air channel connected to the heater via the heat source regenerator, a gas channel connected to the outside via the heat source regenerator, and an external circulating working fluid channel connected to the compressor. The compressor also has a first circulating working fluid channel connected to the cryogenic expander via the second regenerator, a circulating working fluid channel connected to the outside, a second circulating working fluid channel connected to itself via the third regenerator, and a second circulating working fluid channel connected to the expander via the regenerator and heater. The expander also has a circulating working fluid channel connected to the regenerator, the third regenerator, and the second regenerator, and then a circulating working fluid channel connected to the outside. The expander and the cryogenic expander are connected to the compressor and transmit power, forming a fuel-driven flexible regenerative thermal power unit.

[0012] 8. A fuel-driven flexible regenerative thermal device, which is the same as the fuel-driven flexible regenerative thermal device described in item 1, but with the addition of a condenser, a booster pump, an evaporator, and a steam turbine. The regenerator is modified so that it has a circulating working fluid channel connected to the outside, and the regenerator has a circulating working fluid channel connected to the outside via the evaporator. The condenser has a condensate channel connected to the evaporator via the booster pump, and then the evaporator has a steam channel connected to the steam turbine. The steam turbine also has a low-pressure steam channel connected to the condenser. The condenser also has a cooling medium channel connected to the outside, thus forming a fuel-driven flexible regenerative thermal device.

[0013] 9. A fuel-driven flexible regenerative thermal device is a fuel-driven flexible regenerative thermal device described in any of items 2-4, with the addition of a condenser, a booster pump, an evaporator, and a steam turbine. The second regenerator is modified so that it has a circulating working fluid channel connected to the outside via the evaporator. The condenser has a condensate channel connected to the evaporator via the booster pump, and then the evaporator has a steam channel connected to the steam turbine. The steam turbine also has a low-pressure steam channel connected to the condenser. The condenser also has a cooling medium channel connected to the outside, thus forming a fuel-driven flexible regenerative thermal device.

[0014] 10. A fuel-driven flexible regenerative thermal device, comprising, in either item 5 or 6, a condenser, a booster pump, an evaporator, and a steam turbine, wherein the low-temperature expander is modified to have a circulating working fluid channel connected to the outside via the evaporator; the regenerator is modified to have a circulating working fluid channel connected to the outside via the evaporator; the condenser has a condensate channel connected to the evaporator via the booster pump, and the evaporator has a steam channel connected to the steam turbine; the steam turbine also has a low-pressure steam channel connected to the condenser; and the condenser also has a cooling medium channel connected to the outside, thus forming a fuel-driven flexible regenerative thermal device.

[0015] 11. A fuel-driven flexible regenerative thermal device, which is the same as the fuel-driven flexible regenerative thermal device described in item 7, but with the addition of a condenser, a booster pump, an evaporator, and a steam turbine. The low-temperature expander is changed from having a circulating working fluid channel connected to the outside to having a circulating working fluid channel connected to the outside via the evaporator. The expander is also changed from having a circulating working fluid channel connected to the outside to having a circulating working fluid channel connected to the outside via the evaporator. The condenser has a condensate channel connected to the evaporator via the booster pump, and then the evaporator has a steam channel connected to the steam turbine. The steam turbine also has a low-pressure steam channel connected to the condenser. The condenser also has a cooling medium channel connected to the outside, thus forming a fuel-driven flexible regenerative thermal device.

[0016] 12. A fuel-driven flexible regenerative thermal device is a fuel-driven flexible regenerative thermal device described in any of items 8-11, wherein a second booster pump and a low-temperature regenerator are added, the condenser is changed from having a condensate pipeline connected to the booster pump to having a condensate pipeline connected to the low-temperature regenerator via the second booster pump, the steam turbine is provided with an extraction steam channel connected to the low-temperature regenerator, and the low-temperature regenerator is further connected to the booster pump via a condensate pipeline, thus forming a fuel-driven flexible regenerative thermal device.

[0017] 13. A fuel-driven flexible regenerative thermal device is a fuel-driven flexible regenerative thermal device described in items 1-12, wherein a combustion chamber is added, and an external fuel passage is connected to the combustion chamber. The circulating working fluid entering the compressor is renamed air, and the circulating working fluid leaving the expander is renamed gas. The connection between the heating furnace and the expander is changed from a circulating working fluid passage to an air passage connecting the heating furnace to the combustion chamber. The combustion chamber is then connected to the expander via a gas passage, thus forming a fuel-driven flexible regenerative thermal device.

[0018] 14. A fuel-driven flexible regenerative thermal device is a fuel-driven flexible regenerative thermal device described in item 1, wherein a cooler is added, and the external circulating working fluid channel connected to the compressor and the regenerator circulating working fluid channel connected to the outside are adjusted together to the regenerator having a circulating working fluid channel connected to the compressor via the cooler, and the cooler also having a cooling medium channel connected to the outside, thus forming a fuel-driven flexible regenerative thermal device.

[0019] 15. A fuel-driven flexible regenerative thermal device is a fuel-driven flexible regenerative thermal device described in any of items 2-4, wherein a cooler is added, and the external working fluid channel is connected to the compressor and the second regenerator is connected to the external working fluid channel. The second regenerator is connected to the compressor via the cooler, and the cooler is also connected to the external working fluid channel, thus forming a fuel-driven flexible regenerative thermal device.

[0020] 16. A fuel-driven flexible regenerative thermal device, wherein a cooler is added to the fuel-driven flexible regenerative thermal device described in item 5 or 6, and the second regenerator has a circulating working fluid channel connected to the outside, the cryogenic expander has a circulating working fluid channel connected to the outside, and the outside has a circulating working fluid channel connected to the compressor. The second regenerator and the cryogenic expander have circulating working fluid channels connected to the compressor after passing through the cooler, and the cooler also has a cooling medium channel connected to the outside, thus forming a fuel-driven flexible regenerative thermal device.

[0021] 17. A fuel-driven flexible regenerative thermal device is a fuel-driven flexible regenerative thermal device described in item 7, wherein a cooler is added. The cooler connects the expander, the cryogenic expander, and the compressor to the external working fluid channels. The expander and cryogenic expander have working fluid channels connected to the compressor via the cooler, and the cooler also has a cooling medium channel connected to the external environment, thus forming a fuel-driven flexible regenerative thermal device. Attached image description:

[0022] Figure 1 This is a schematic diagram of the first principle of a fuel-driven flexible regenerative thermal device provided by the present invention.

[0023] Figure 2 This is a schematic diagram of the second principle of the thermal system of the fuel-driven flexible regenerative thermal device provided by the present invention.

[0024] Figure 3 This is a schematic diagram of the third principle of the thermal system of the fuel-driven flexible regenerative thermal device provided by the present invention.

[0025] Figure 4 This is a schematic diagram of the fourth principle thermodynamic system of the fuel-driven flexible regenerative thermal device provided by the present invention.

[0026] Figure 5 This is a fifth principle thermodynamic system diagram of a fuel-driven flexible regenerative thermal device provided by the present invention.

[0027] Figure 6 This is a schematic diagram of the sixth principle thermodynamic system of the fuel-driven flexible regenerative thermal device provided by the present invention.

[0028] Figure 7 This is the seventh principle thermodynamic system diagram of the fuel-driven flexible regenerative thermal device provided by the present invention.

[0029] Figure 8 This is the eighth principle thermodynamic system diagram of the fuel-driven flexible regenerative thermal device provided by the present invention.

[0030] Figure 9 This is the ninth principle thermodynamic system diagram of the fuel-driven flexible regenerative thermal device provided by the present invention.

[0031] Figure 10 This is a principle thermal system diagram of the 10th type of fuel-driven flexible regenerative thermal device provided by the present invention.

[0032] Figure 11 This is a principle thermal system diagram of the 11th type of fuel-driven flexible regenerative thermal device provided by the present invention.

[0033] Figure 12 This is a schematic diagram of the 12th type of principle thermodynamic system for a fuel-driven flexible regenerative thermal device provided by the present invention.

[0034] In the diagram, 1-compressor, 2-regenerator, 3-heater furnace, 4-heat source regenerator, 5-expander, 6-secondary regenerator, 7-low-temperature expander, 8-tertiary regenerator, 9-condenser, 10-boost pump, 11-evaporator, 12-steam turbine, 13-secondary boost pump, 14-low-temperature regenerator, 15-combustion chamber, 16-cooler (Note: in the transcritical cycle, this cooler is a condenser). Detailed implementation method:

[0035] 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.

[0036] Figure 1 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0037] (1) Structurally, it is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator and an expander; there is a fuel channel connected to the heating furnace 3 externally, and an air channel connected to the heating furnace 3 via the heat source regenerator 4 externally. The heating furnace 3 also has a gas channel connected to the outside via the heat source regenerator 4 externally. There is a circulating working fluid channel connected to the compressor 1 externally. The compressor 1 also has a circulating working fluid channel connected to the expander 5 via the regenerator 2 and the heating furnace 3. The second expander 5 also has a circulating working fluid channel connected to the outside via the regenerator 2. The expander 5 is connected to the compressor 1 and transmits power.

[0038] (2) In terms of process, external air flows through the heat source regenerator 4 to absorb heat and increase temperature before entering the heating furnace 3. External fuel enters the heating furnace 3. The fuel and air are burned in the heating furnace 3 to generate high-temperature gas. The gas releases heat to the circulating working fluid flowing through the heating furnace 3. Then it flows through the heat source regenerator 4 to release heat, cool down, and be discharged to the outside. The external circulating working fluid flows through the compressor 1 to increase pressure and temperature. It flows through the regenerator 2 and the heating furnace 3 to gradually absorb heat and increase temperature. It flows through the expander 5 to decrease pressure and do work. It flows through the regenerator 2 to release heat and cool down, and then is discharged to the outside. The fuel provides driving heat load through the heating furnace 3. The air and gas carry away the low-temperature emission heat load by entering and exiting the heating furnace 3. The circulating working fluid carries away the emission heat load by entering and exiting the process. The mechanical energy output by the expander 5 provides power to the compressor 1 and the external working fluid, forming a fuel-driven flexible regenerative thermal power device.

[0039] Figure 2 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0040] (1) Structurally, it is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander, and a second regenerator. There is a fuel channel connected to the heating furnace 3 on the outside, and an air channel connected to the heating furnace 3 via the heat source regenerator 4. The heating furnace 3 also has a gas channel connected to the outside via the heat source regenerator 4. There is a circulating working fluid channel connected to the compressor 1 on the outside, and then the compressor 1 has a circulating working fluid channel connected to itself via the second regenerator 6. The compressor 1 also has a circulating working fluid channel connected to the expander 5 via the regenerator 2 and the heating furnace 3. The second expander 5 also has a circulating working fluid channel connected to the outside via the regenerator 2 and the second regenerator 6. The expander 5 is connected to the compressor 1 and transmits power.

[0041] (2) In terms of process, with Figure 1Compared with the fuel-driven flexible regenerative thermal device shown, the difference is that: the external circulating working fluid enters the compressor 1 to increase the pressure and temperature, and after reaching a certain level, it flows through the second regenerator 6 to absorb heat and increase the temperature, and then enters the compressor 1 to continue to increase the pressure and temperature, and then supplies it to the regenerator 2; the circulating working fluid discharged from the expander 5 flows through the regenerator 2 and the second regenerator 6 to gradually release heat and decrease the temperature, and then is discharged to the outside, forming a fuel-driven flexible regenerative thermal device.

[0042] Figure 3 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0043] (1) Structurally, it is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander, and a second regenerator. There is a fuel channel connected to the heating furnace 3 on the outside, and an air channel connected to the heating furnace 3 via the heat source regenerator 4. The heating furnace 3 also has a gas channel connected to the outside via the heat source regenerator 4. There is a circulating working fluid channel connected to the compressor 1 on the outside. The compressor 1 also has a circulating working fluid channel connected to the expander 5 via the second regenerator 6, the regenerator 2, and the heating furnace 3. The expander 5 also has a circulating working fluid channel connected to itself via the regenerator 2. After that, the expander 5 has a circulating working fluid channel connected to the outside via the second regenerator 6. The expander 5 is connected to the compressor 1 and transmits power.

[0044] (2) In terms of process, with Figure 1 Compared with the fuel-driven flexible regenerative thermal power device shown, the difference is that the circulating working fluid discharged from the compressor 1 flows through the second regenerator 6, the regenerator 2 and the heater 3 to gradually absorb heat and increase temperature, and then provides it to the expander 5; the circulating working fluid enters the expander 5 to reduce pressure and do work, and after reaching a certain level, it flows through the regenerator 2 to release heat and cool down, enters the expander 5 to continue to reduce pressure and do work, flows through the second regenerator 6 to release heat and cool down and is discharged to the outside, forming a fuel-driven flexible regenerative thermal power device.

[0045] Figure 4 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0046] (1) Structurally, it is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander, and a second regenerator. There is a fuel channel connected to the heating furnace 3 on the outside, and an air channel connected to the heating furnace 3 via the heat source regenerator 4. The heating furnace 3 also has a gas channel connected to the outside via the heat source regenerator 4. There is a circulating working fluid channel connected to the compressor 1 on the outside, and then the compressor 1 has a circulating working fluid channel connected to itself via the second regenerator 6. The compressor 1 also has a circulating working fluid channel connected to the expander 5 via the regenerator 2 and the heating furnace 3. The expander 5 also has a circulating working fluid channel connected to itself via the regenerator 2, and then the expander 5 has a circulating working fluid channel connected to the outside via the second regenerator 6. The expander 5 is connected to the compressor 1 and transmits power.

[0047] (2) In terms of process, with Figure 1 Compared to the fuel-driven flexible regenerative thermal power device shown, the difference lies in the following: the external circulating working fluid enters the compressor 1 to increase its pressure and temperature. After reaching a certain level, it flows through the second regenerator 6 to absorb heat and increase its temperature. It then enters the compressor 1 to continue to increase its pressure and temperature, and is then supplied to the regenerator 2. The circulating working fluid enters the expander 5 to decrease its pressure and do work. After reaching a certain level, it flows through the regenerator 2 to release heat and decrease its temperature. It then enters the expander 5 to continue to decrease its pressure and do work. It flows through the second regenerator 6 to release heat, decrease its temperature, and is then discharged to the outside, thus forming a fuel-driven flexible regenerative thermal power device.

[0048] Figure 5 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0049] (1) Structurally, it is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander, a second regenerator, and a low-temperature expander. There is a fuel channel connected to the heating furnace 3 externally, and an air channel connected to the heating furnace 3 via the heat source regenerator 4. The heating furnace 3 also has a gas channel connected to the outside via the heat source regenerator 4. There is a circulating working fluid channel connected to the compressor 1 externally. The compressor 1 also has a first circulating working fluid channel connected to the low-temperature expander 7 via the second regenerator 6. The low-temperature expander 7 also has a circulating working fluid channel connected to the outside. The compressor 1 also has a second circulating working fluid channel connected to the expander 5 via the regenerator 2 and the heating furnace 3. The expander 5 also has a circulating working fluid channel connected to itself via the regenerator 2. After that, the expander 5 has a circulating working fluid channel connected to the outside via the second regenerator 6. The expander 5 and the low-temperature expander 7 are connected to the compressor 1 and transmit power.

[0050] (2) In terms of process, external air flows through the heat source regenerator 4 to absorb heat and increase its temperature before entering the heating furnace 3. External fuel enters the heating furnace 3, where the fuel and air are burned to generate high-temperature fuel gas. The fuel gas releases heat to the circulating working fluid flowing through the heating furnace 3, and then flows through the heat source regenerator 4 to release heat, cool down, and be discharged to the outside. The external circulating working fluid enters the compressor 1 to increase its pressure and temperature. After reaching a certain level, it is divided into two paths: the first path flows through the second regenerator 6 to absorb heat and increase its temperature, flows through the low-temperature expander 7 to reduce its pressure and perform work, and is then discharged to the outside; the second path continues to increase its pressure and temperature, and flows through the regenerator 2 and the heating furnace. 3. The circulating working fluid gradually absorbs heat and heats up, and then supplies it to the expander 5. The circulating working fluid enters the expander 5 to reduce pressure and do work. After reaching a certain level, it flows through the regenerator 2 to release heat and cool down. It then enters the expander 5 to continue to reduce pressure and do work. It flows through the second regenerator 6 to release heat, cool down, and be discharged to the outside. The fuel provides the driving heat load through the heater 3. The air and gas carry away the low-temperature discharge heat load through entering and exiting the heater 3. The circulating working fluid carries away the discharge heat load through entering and exiting the process. The mechanical energy output by the expander 5 and the low-temperature expander 7 provides power to the compressor 1 and the outside, forming a fuel-driven flexible regenerative thermal power device.

[0051] Figure 6 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0052] (1) Structurally, it is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander, a second regenerator, a low-temperature expander and a third regenerator: There is a fuel channel connected to the heating furnace 3 on the outside, and an air channel connected to the heating furnace 3 via the heat source regenerator 4 on the outside. The heating furnace 3 also has a gas channel connected to the outside via the heat source regenerator 4. There is a circulating working fluid channel connected to the compressor 1 on the outside. The compressor 1 also has a first circulating working fluid channel connected to the low-temperature expander 7 via the second regenerator 6. The low-temperature expander 7 also has a circulating working fluid channel connected to the outside. The compressor 1 also has a second circulating working fluid channel connected to itself via the third regenerator 8. The compressor 1 also has a second circulating working fluid channel connected to the expander 5 via the regenerator 2 and the heating furnace 3. The expander 5 also has a circulating working fluid channel connected to the outside via the regenerator 2, the third regenerator 8 and the second regenerator 6. The expander 5 and the low-temperature expander 7 are connected to the compressor 1 and transmit power.

[0053] (2) In terms of process, with Figure 5 Compared to the fuel-driven flexible regenerative thermal power device shown, the difference lies in the following: the external circulating working fluid enters the compressor 1 to increase its pressure and temperature. After reaching a certain level, it is divided into two paths. The first path flows through the second regenerator 6 to absorb heat and increase its temperature before entering the low-temperature expander 7 to reduce its pressure and perform work. The second path continues to increase its pressure and temperature until it enters the third regenerator 8 to absorb heat and increase its temperature. The circulating working fluid discharged from the third regenerator 8 enters the compressor 1 to continue to increase its pressure and temperature, and then enters the regenerator 2 to absorb heat and increase its temperature. The circulating working fluid discharged from the expander 5 flows through the regenerator 2, the third regenerator 8, and the second regenerator 6 to gradually release heat and decrease its temperature before being discharged to the outside, thus forming a fuel-driven flexible regenerative thermal power device.

[0054] Figure 7 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0055] (1) Structurally, it is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander, a second regenerator, a low-temperature expander, and a third regenerator. There is a fuel channel connected to the heating furnace 3 externally, and an air channel connected to the heating furnace 3 via the heat source regenerator 4. The heating furnace 3 also has a gas channel connected to the outside via the heat source regenerator 4. There is a circulating working fluid channel connected to the compressor 1 externally. The compressor 1 also has a first circulating working fluid channel connected to the low-temperature expander 7 via the second regenerator 6. The low-temperature expander 7 also has a circulating working fluid channel connected to the outside. The compressor 1 also has a second circulating working fluid channel connected to itself via the third regenerator 8. The compressor 1 also has a second circulating working fluid channel connected to the expander 5 via the regenerator 2 and the heating furnace 3. The expander 5 also has a circulating working fluid channel connected to the regenerator 2, the third regenerator 8, and the second regenerator 6. After the expander 5 is connected to itself, it has a circulating working fluid channel connected to the outside. The expander 5 and the low-temperature expander 7 are connected to the compressor 1 and transmit power.

[0056] (2) In terms of process, with Figure 5 Compared to the fuel-driven flexible regenerative thermal power device shown, the difference lies in the following: the external circulating working fluid enters the compressor 1 to increase its pressure and temperature. After reaching a certain level, it splits into two paths—the first path flows through the second regenerator 6 to absorb heat and increase its temperature before entering the low-temperature expander 7 to reduce its pressure and perform work; the second path continues to increase its pressure and temperature until it enters the third regenerator 8 to absorb heat and increase its temperature. The circulating working fluid discharged from the third regenerator 8 enters the compressor 1 to continue to increase its pressure and temperature, and then enters the regenerator 2 to absorb heat and increase its temperature. The circulating working fluid enters the expander 5 to reduce its pressure and perform work. After reaching a certain level, it flows through the regenerator 2, the third regenerator 8, and the second regenerator 6 to gradually release heat and decrease its temperature. It then enters the expander 5 to continue to reduce its pressure and perform work, and is then discharged to the outside, forming a fuel-driven flexible regenerative thermal power device.

[0057] Figure 8 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0058] (1) Structurally, in Figure 1 In the fuel-driven flexible regenerative thermal device shown, a condenser, a booster pump, an evaporator, and a steam turbine are added. The regenerator 2 is adjusted so that it has a circulating working fluid channel connected to the outside, which is connected to the outside via the evaporator 11. The condenser 9 has a condensate channel connected to the evaporator 11 via the booster pump 10. The evaporator 11 then has a steam channel connected to the steam turbine 12. The steam turbine 12 also has a low-pressure steam channel connected to the condenser 9. The condenser 9 also has a cooling medium channel connected to the outside.

[0059] (2) In terms of process, with Figure 1Compared to the fuel-driven flexible regenerative thermal power device shown, the difference lies in the following: the circulating working fluid discharged from the expander 5 flows through the regenerator 2 and evaporator 11 to gradually release heat and cool down before being discharged to the outside; the condensate discharged from the condenser 9 flows through the booster pump 10 to increase pressure, flows through the evaporator 11 to absorb heat, increase temperature, vaporize and superheat, flows through the turbine 12 to reduce pressure and do work before entering the condenser 9 to release heat and condense; the fuel provides the driving heat load through the heater 3, the air and gas carry away the low-temperature emission heat load through entering and exiting the heater 3, the circulating working fluid carries away the emission heat load through entering and exiting the process, the cooling medium carries away the low-temperature heat load through the condenser 9, and the work output by the expander 5 and the turbine 12 provides power to the compressor 1 and the outside, thus forming a fuel-driven flexible regenerative thermal power device.

[0060] Figure 9 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0061] (1) Structurally, in Figure 5 In the fuel-driven flexible regenerative thermal device shown, a condenser, a booster pump, an evaporator, and a steam turbine are added. The low-temperature expander 7 is adjusted so that the circulating working fluid channel is connected to the outside via the evaporator 11. The regenerator 6 is adjusted so that the circulating working fluid channel is connected to the outside via the evaporator 11. The condenser 9 has a condensate channel connected to the evaporator 11 via the booster pump 10. After that, the evaporator 11 has a steam channel connected to the steam turbine 12. The steam turbine 12 also has a low-pressure steam channel connected to the condenser 9. The condenser 9 also has a cooling medium channel connected to the outside.

[0062] (2) In terms of process, with Figure 5 Compared to the fuel-driven flexible regenerative thermal power unit shown, the difference lies in the following: the circulating working fluid discharged from the regenerator 6 flows through the evaporator 11 to release heat and cool down before being discharged to the outside; the air discharged from the cryogenic expander 7 flows through the evaporator 11 to release heat and cool down before being discharged to the outside; the condensate discharged from the condenser 9 flows through the booster pump 10 to increase pressure, flows through the evaporator 11 to absorb heat, increase temperature, vaporize and superheat, flows through the steam turbine 12 to reduce pressure and do work, and then enters the condenser 9 to release heat and condense; the fuel provides the driving heat load through the heater 3, the air and gas carry away the cryogenic discharge heat load through entering and exiting the heater 3, the circulating working fluid carries away the discharge heat load through entering and exiting the process, the cooling medium carries away the cryogenic heat load through the condenser 9, and the power output from the expander 5, cryogenic expander 7 and steam turbine 12 provides power to the compressor 1 and the outside, thus forming a fuel-driven flexible regenerative thermal power unit.

[0063] Figure 10 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0064] (1) Structurally, in Figure 8In the fuel-driven flexible regenerative thermal device shown, a second booster pump 13 and a low-temperature regenerator 14 are added. The condenser 9 is changed from having a condensate pipe connected to the booster pump 10 to having a condensate pipe connected to the low-temperature regenerator 14 via the second booster pump 13. The steam turbine 12 is equipped with an extraction steam channel connected to the low-temperature regenerator 14, and the low-temperature regenerator 14 is further connected to the booster pump 10 via a condensate pipe.

[0065] (2) In terms of process, with Figure 8 Compared with the fuel-driven flexible regenerative thermal power device shown, the difference is that: the condensate discharged from the condenser 9 flows through the second booster pump 13 to be pressurized and then enters the low-temperature regenerator 14, where it mixes with the extracted steam from the turbine 12, absorbs heat and increases in temperature. The extracted steam releases heat and condenses. The condensate discharged from the low-temperature regenerator 14 enters the booster pump 10 to be pressurized. The steam discharged from the evaporator 11 enters the turbine 12 to be depressurized and do work. After a certain degree, it is divided into two paths - the first path enters the low-temperature regenerator 14 to release heat and condense, and the second path continues to be depressurized and do work before entering the condenser 9 to release heat and condense, thus forming a fuel-driven flexible regenerative thermal power device.

[0066] Figure 11 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0067] (1) Structurally, in Figure 1 In the fuel-driven flexible regenerative thermal device shown, a combustion chamber 15 is added, with an external fuel passage connected to the combustion chamber 15. The circulating working fluid entering the compressor 1 is renamed air, and the circulating working fluid leaving the expander 5 is renamed gas. The circulating working fluid passage of the heater 3 connected to the expander 5 is adjusted to allow the heater 3 to have an air passage connected to the combustion chamber 15, and the combustion chamber 15 then has a gas passage connected to the expander 5.

[0068] (2) In terms of process, with Figure 1 Compared to the fuel-driven flexible regenerative thermal power device shown, the difference lies in the following: external air flows through compressor 1 to increase pressure and temperature, then flows through regenerator 2 and heater 3 to gradually absorb heat and increase temperature, and then enters combustion chamber 15; external fuel enters combustion chamber 15, where fuel and compressed air are burned to generate high-temperature gas, which flows through expander 5 to reduce pressure and do work, then flows through regenerator 2 to release heat and cool down, and then is discharged to the outside; the increased fuel provides driving heat load through combustion chamber 15, forming a fuel-driven flexible regenerative thermal power device.

[0069] Figure 12 The fuel-driven flexible regenerative thermal device shown is implemented as follows:

[0070] (1) Structurally, in Figure 5In the fuel-driven flexible regenerative thermal device shown, a cooler is added, and the second regenerator 6 has a circulating working fluid channel connected to the outside, the cryogenic expander 7 has a circulating working fluid channel connected to the outside, and the outside has a circulating working fluid channel connected to the compressor 1. All of these are adjusted so that the second regenerator 6 and the cryogenic expander 7 have a circulating working fluid channel connected to the compressor 1 after passing through the cooler 16, and the cooler 16 also has a cooling medium channel connected to the outside.

[0071] (2) In terms of process, with Figure 5 Compared to the fuel-driven flexible regenerative thermal power device shown, the difference is that the circulating working fluid discharged from the regenerator 6 and the cryogenic expander 7 flows through the cooler 16 to release heat and cool down, and then is supplied to the compressor 1; the cooling medium carries away the discharged heat load through the cooler 16, forming a fuel-driven flexible regenerative thermal power device.

[0072] The effects achievable by this invention—the fuel-driven flexible regenerative thermal device proposed in this invention has the following effects and advantages:

[0073] (1) Variable temperature heat absorption results in minimal temperature difference loss in the process of obtaining driving heat load.

[0074] (2) The process is reasonable, the structure is simple, and there are few reheating links, which helps to reduce the manufacturing cost of the equipment.

[0075] (3) Provides a variety of regeneration technologies, which is conducive to improving the coordination between load, thermal efficiency and pressure ratio of the device.

[0076] (4) Provides a variety of specific technical solutions, which is conducive to expanding the application scope and value of fuel-driven flexible regenerative thermal devices.

Claims

1. A fuel-driven flexible regenerative heat engine, mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator and an expander; externally connected with a fuel channel and the heating furnace (3), and externally connected with an air channel and the heating furnace (3) through the heat source regenerator (4), and the heating furnace (3) is connected with a gas channel and the outside through the heat source regenerator (4), and externally connected with a circulating working medium channel and the compressor (1), and the compressor (1) is connected with a circulating working medium channel and the expander (5) through the regenerator (2) and the heating furnace (3), and the second expander (5) is connected with a circulating working medium channel and the outside through the regenerator (2), and the expander (5) is connected with the compressor (1) and transmits power, forming the fuel-driven flexible regenerative heat engine.

2. A fuel-driven flexible regenerative heat engine, mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander and a second regenerator; externally connected with a fuel channel and the heating furnace (3), and externally connected with an air channel and the heating furnace (3) through the heat source regenerator (4), and the heating furnace (3) is connected with a gas channel and the outside through the heat source regenerator (4), and externally connected with a circulating working medium channel and the compressor (1), and the compressor (1) is connected with a circulating working medium channel and the expander (5) through the regenerator (2) and the heating furnace (3), and the second expander (5) is connected with a circulating working medium channel and the outside through the regenerator (2) and the second regenerator (6), and the expander (5) is connected with the compressor (1) and transmits power, forming the fuel-driven flexible regenerative heat engine.

3. A fuel-driven flexible regenerative heat engine, mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander and a second regenerator; externally connected with a fuel channel and the heating furnace (3), and externally connected with an air channel and the heating furnace (3) through the heat source regenerator (4), and the heating furnace (3) is connected with a gas channel and the outside through the heat source regenerator (4), and externally connected with a circulating working medium channel and the compressor (1), and the compressor (1) is connected with a circulating working medium channel and the expander (5) through the second regenerator (6), the regenerator (2) and the heating furnace (3), and the expander (5) is connected with a circulating working medium channel and itself through the regenerator (2), and the expander (5) is connected with a circulating working medium channel and the outside through the second regenerator (6) after the expander (5), and the expander (5) is connected with the compressor (1) and transmits power, forming the fuel-driven flexible regenerative heat engine.

4. The fuel-driven flexible regenerative heat engine is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander and a second regenerator. The outside has a fuel channel connected with the heating furnace (3), and an air channel connected with the heating furnace (3) through the heat source regenerator (4). The heating furnace (3) has a gas channel connected with the outside through the heat source regenerator (4). The outside has a circulating working medium channel connected with the compressor (1), and the compressor (1) has a circulating working medium channel connected with itself through the second regenerator (6). The compressor (1) has a circulating working medium channel connected with the expander (5) through the regenerator (2) and the heating furnace (3). The expander (5) has a circulating working medium channel connected with itself through the regenerator (2), and the expander (5) has a circulating working medium channel connected with the outside through the second regenerator (6). The expander (5) is connected with the compressor (1) and transmits power, forming the fuel-driven flexible regenerative heat engine.

5. The fuel-driven flexible regenerative heat engine is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander, a second regenerator and a low-temperature expander. The outside has a fuel channel connected with the heating furnace (3), and an air channel connected with the heating furnace (3) through the heat source regenerator (4). The heating furnace (3) has a gas channel connected with the outside through the heat source regenerator (4). The outside has a circulating working medium channel connected with the compressor (1). The compressor (1) has a first circulating working medium channel connected with the low-temperature expander (7) through the second regenerator (6). The low-temperature expander (7) has a circulating working medium channel connected with the outside. The compressor (1) has a second circulating working medium channel connected with the expander (5) through the regenerator (2) and the heating furnace (3). The expander (5) has a circulating working medium channel connected with itself through the regenerator (2), and the expander (5) has a circulating working medium channel connected with the outside through the second regenerator (6). The expander (5) and the low-temperature expander (7) are connected with the compressor (1) and transmit power, forming the fuel-driven flexible regenerative heat engine.

6. The fuel-driven flexible regenerative heat engine is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander, a second regenerator, a low-temperature expander and a third regenerator. The outside has a fuel channel connected with the heating furnace (3), and an air channel connected with the heating furnace (3) through the heat source regenerator (4). The heating furnace (3) also has a gas channel connected with the outside through the heat source regenerator (4). The outside has a circulating working medium channel connected with the compressor (1). The compressor (1) also has a first circulating working medium channel connected with the low-temperature expander (7) through the second regenerator (6). The low-temperature expander (7) also has a circulating working medium channel connected with the outside. The compressor (1) also has a second circulating working medium channel connected with itself through the third regenerator (8). The compressor (1) also has a second circulating working medium channel connected with the expander (5) through the regenerator (2) and the heating furnace (3). The expander (5) also has a circulating working medium channel connected with the regenerator (2), the third regenerator (8) and the second regenerator (6), and then connected with the outside. The expander (5) and the low-temperature expander (7) are connected with the compressor (1) and transmit power, forming the fuel-driven flexible regenerative heat engine.

7. The fuel-driven flexible regenerative heat engine is mainly composed of a compressor, a regenerator, a heating furnace, a heat source regenerator, an expander, a second regenerator, a low-temperature expander and a third regenerator. The outside has a fuel channel connected with the heating furnace (3), and an air channel connected with the heating furnace (3) through the heat source regenerator (4). The heating furnace (3) also has a gas channel connected with the outside through the heat source regenerator (4). The outside has a circulating working medium channel connected with the compressor (1). The compressor (1) also has a first circulating working medium channel connected with the low-temperature expander (7) through the second regenerator (6). The low-temperature expander (7) also has a circulating working medium channel connected with the outside. The compressor (1) also has a second circulating working medium channel connected with itself through the third regenerator (8). The compressor (1) also has a second circulating working medium channel connected with the expander (5) through the regenerator (2) and the heating furnace (3). The expander (5) also has a circulating working medium channel connected with the regenerator (2), the third regenerator (8) and the second regenerator (6), and then connected with the outside. The expander (5) and the low-temperature expander (7) are connected with the compressor (1) and transmit power, forming the fuel-driven flexible regenerative heat engine.

8. The fuel-driven flexible regenerative heat engine is the fuel-driven flexible regenerative heat engine in claim 1, which is increased with a condenser, a booster pump, an evaporator and a steam turbine. The circulating working medium channel of the regenerator (2) connected with the outside is adjusted to the circulating working medium channel of the regenerator (2) connected with the outside through the evaporator (11). The condenser (9) has a condensate channel connected with the evaporator (11) through the booster pump (10), and then the evaporator (11) has a steam channel connected with the steam turbine (12). The steam turbine (12) also has a low-pressure steam channel connected with the condenser (9). The condenser (9) also has a cooling medium channel connected with the outside, forming the fuel-driven flexible regenerative heat engine.

9. The fuel-driven flexible regenerative heat engine is any one of the fuel-driven flexible regenerative heat engine in claims 2-4, adding condenser, booster pump, evaporator and steam turbine, adjusting the circulating working medium passage of the second regenerator (6) to be connected with the outside through the evaporator (11), the condensate passage of the condenser (9) is connected with the evaporator (11) through the booster pump (10), and then the evaporator (11) has a steam passage connected with the steam turbine (12), the steam turbine (12) has a low-pressure steam passage connected with the condenser (9), and the condenser (9) has a cooling medium passage connected with the outside, forming the fuel-driven flexible regenerative heat engine.

10. The fuel-driven flexible regenerative heat engine is any one of the fuel-driven flexible regenerative heat engine in claims 5 or 6, adding condenser, booster pump, evaporator and steam turbine, adjusting the circulating working medium passage of the low-temperature expander (7) to be connected with the outside through the evaporator (11), adjusting the circulating working medium passage of the regenerator (6) to be connected with the outside through the evaporator (11), the condensate passage of the condenser (9) is connected with the evaporator (11) through the booster pump (10), and then the evaporator (11) has a steam passage connected with the steam turbine (12), the steam turbine (12) has a low-pressure steam passage connected with the condenser (9), and the condenser (9) has a cooling medium passage connected with the outside, forming the fuel-driven flexible regenerative heat engine.

11. The fuel-driven flexible regenerative heat engine is the fuel-driven flexible regenerative heat engine in claim 7, adding condenser, booster pump, evaporator and steam turbine, adjusting the circulating working medium passage of the low-temperature expander (7) to be connected with the outside through the evaporator (11), adjusting the circulating working medium passage of the expander (5) to be connected with the outside through the evaporator (11), the condensate passage of the condenser (9) is connected with the evaporator (11) through the booster pump (10), and then the evaporator (11) has a steam passage connected with the steam turbine (12), the steam turbine (12) has a low-pressure steam passage connected with the condenser (9), and the condenser (9) has a cooling medium passage connected with the outside, forming the fuel-driven flexible regenerative heat engine.

12. The fuel-driven flexible regenerative heat engine is any one of the fuel-driven flexible regenerative heat engine in claims 8-11, adding a second booster pump (13) and a low-temperature regenerator (14), adjusting the condenser (9) condensate line to the booster pump (10) to the condenser (9) condensate line through the second booster pump (13) and the low-temperature regenerator (14), the steam turbine (12) is additionally provided with a steam extraction channel connected with the low-temperature regenerator (14), and the low-temperature regenerator (14) is additionally provided with a condensate line connected with the booster pump (10), forming the fuel-driven flexible regenerative heat engine.

13. The fuel-driven flexible regenerative heat engine is any one of the fuel-driven flexible regenerative heat engine in claims 1-12, adding a combustion chamber (15), the outside has a fuel channel connected with the combustion chamber (15), the circulating working medium entering the compressor (1) is renamed as air, the circulating working medium leaving the expander (5) is renamed as fuel gas, adjusting the circulating working medium channel of the heating furnace (3) connected with the expander (5) to the air channel of the heating furnace (3) connected with the combustion chamber (15), and the combustion chamber (15) has a fuel gas channel connected with the expander (5), forming the fuel-driven flexible regenerative heat engine.

14. The fuel-driven flexible regenerative heat engine is any one of the fuel-driven flexible regenerative heat engine in claims 1-12, adding a cooler, adjusting the circulating working medium channel of the compressor (1) connected with the outside and the circulating working medium channel of the regenerator (2) connected with the outside to the circulating working medium channel of the regenerator (2) connected with the compressor (1) through the cooler (16), and the cooler (16) has a cooling medium channel connected with the outside, forming the fuel-driven flexible regenerative heat engine.

15. The fuel-driven flexible regenerative heat engine is any one of the fuel-driven flexible regenerative heat engine in claims 2-4, adding a cooler, adjusting the circulating working medium channel of the compressor (1) connected with the outside and the circulating working medium channel of the second regenerator (6) connected with the outside to the circulating working medium channel of the second regenerator (6) connected with the compressor (1) through the cooler (16), and the cooler (16) has a cooling medium channel connected with the outside, forming the fuel-driven flexible regenerative heat engine.

16. The fuel-driven flexible regenerative heat engine is any one of the fuel-driven flexible regenerative heat engine in claims 5 or 6, adding a cooler, adjusting the circulating working medium channel of the second regenerator (6) connected with the outside, the circulating working medium channel of the low-temperature expander (7) connected with the outside, and the circulating working medium channel of the compressor (1) connected with the outside to the circulating working medium channel of the second regenerator (6) and the low-temperature expander (7) connected with the compressor (1) through the cooler (16), and the cooler (16) has a cooling medium channel connected with the outside, forming the fuel-driven flexible regenerative heat engine.

17. The fuel-driven flexible regenerative heat engine of claim 7, wherein a cooler is added to the fuel-driven flexible regenerative heat engine, the cooler having a circulating working medium passage in communication with the outside of the circulating working medium passage of the expander (5), the circulating working medium passage of the low-temperature expander (7), and the compressor (1), and the circulating working medium passage of the expander (5) and the circulating working medium passage of the low-temperature expander (7) are adjusted to be in communication with the compressor (1) through the cooler (16), and the cooler (16) has a cooling medium passage in communication with the outside, thereby forming the fuel-driven flexible regenerative heat engine.

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