Refluxed boosted gas power plant

Abstract

The application provides a reflux pressure boosting gas power device, and belongs to the technical field of thermodynamics and thermodynamics. An air passage is communicated with an ejection pipe, and then is divided into two paths, a first air passage is communicated with a diffuser pipe, and a second air passage is communicated with an expander. The expander is further communicated with a cold source heat exchanger through an air passage, and the cold source heat exchanger is further communicated with a compressor through an air passage. The air passage of the compressor and the first air passage of the ejection pipe are merged and communicated with the diffuser pipe. The diffuser pipe is further communicated with the outside through an air passage. The cold source heat exchanger is further communicated with the outside through a cold source medium passage. The expander is connected with the compressor and transmits power, thereby forming the reflux pressure boosting gas power device.

Description

Technical fields:

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

[0002] Gas power devices based on the Brayton cycle have a wide range of applications; with the development of the times, people hope that gas power devices will have more reasonable processes, structures and thermal efficiency—for this reason, those skilled in the art are making unremitting efforts.

[0003] From the perspective of the main components constituting a gas power unit, the compressor and expander are indispensable core components. Through years of theoretical research and engineering practice, and after in-depth consideration and careful analysis, we have found that:

[0004] There is process repetition between the pressurization process of the working medium (e.g., air) in the compressor and the depressurization process in the expander. This not only increases the workload of the compressor and expander, but also leads to an increase in systemic irreversible losses.

[0005] Based on the fundamental principle of simple and efficient use of cold or hot resources to obtain power, and taking the reduction of repetitive processes in the energy conversion process of the working medium as the starting point, this application proposes a reflux pressurized gas power device with reasonable process, simple system, low manufacturing cost, reasonable thermal efficiency, and air or heat source medium directly used as circulating working fluid. Summary of the Invention:

[0006] The main objective of this invention is to provide a reflux pressurization gas power device, the specific contents of which are described in detail below:

[0007] 1. A recirculating pressurized gas power unit mainly consists of a nozzle, a diffuser, an expander, a cold source heat exchanger, and a compressor. An external air passage connects to the nozzle, then splits into two paths: a first air passage connects to the diffuser, and a second air passage connects to the expander. The expander also has an air passage connecting to the cold source heat exchanger, which in turn has an air passage connecting to the compressor. The compressor has an air passage that merges with the first air passage of the nozzle and connects to the diffuser. The diffuser also has an air passage connecting to the outside. The cold source heat exchanger also has a cold source medium passage connecting to the outside. The expander connects to the compressor and transmits power, forming a recirculating pressurized gas power unit. Alternatively, an additional expander may be added, and the external air passage connecting to the nozzle may be adjusted to connect to the nozzle via the newly added expander.

[0008] 2. The recirculating pressurized gas power unit mainly consists of a nozzle, a diffuser, an expander, a cold source heat exchanger, and a compressor. An external air passage connects the nozzle to the diffuser, and another external air passage connects the expander. The expander also has an air passage connecting to the cold source heat exchanger, which in turn has an air passage connecting to the compressor. The compressor has an air passage that merges with the nozzle's air passage and connects to the diffuser. The diffuser also has an air passage connecting to the outside. The cold source heat exchanger also has a cold source medium passage connecting to the outside. The expander connects to the compressor and transmits power, forming the recirculating pressurized gas power unit.

[0009] 3. A reflux pressurization gas power device is a reflux pressurization gas power device described in item 1 or 2, wherein a regenerator is added, the air passage of the expander is connected to the cold source heat exchanger and the air passage of the expander is connected to the cold source heat exchanger via the regenerator, and the air passage of the compressor is connected to the diffuser and the air passage of the compressor is connected to the diffuser via the regenerator, thus forming a reflux pressurization gas power device.

[0010] 4. A reflux pressurization gas power device, which is the reflux pressurization gas power device described in item 1 or 2, by adding a regenerator, adjusting the connection between the air passage of the expander and the cold source heat exchanger to the connection between the air passage of the expander and the cold source heat exchanger via the regenerator, and adjusting the connection between the air passage of the diffuser and the outside to the connection between the air passage of the diffuser and the outside via the regenerator, thus forming a reflux pressurization gas power device.

[0011] 5. A reflux-pressurized gas power device is a reflux-pressurized gas power device described in item 1 or 2, wherein a regenerator is added, the air passage of the expander is connected to the cold source heat exchanger, and the air passage of the expander is connected to itself through the regenerator, and then the expander has an air passage connected to the cold source heat exchanger; the air passage of the compressor is connected to the diffuser, and the air passage of the compressor is connected to the diffuser through the regenerator, thus forming a reflux-pressurized gas power device.

[0012] 6. A reflux pressurization gas power device is a reflux pressurization gas power device described in item 1 or 2, wherein a regenerator is added, the air passage of the diffuser is changed from being connected to the outside to being connected to the outside via the regenerator, and the air passage of the expander is changed from being connected to the cold source heat exchanger to being connected to itself via the regenerator, and then the expander has an air passage connected to the cold source heat exchanger, thus forming a reflux pressurization gas power device.

[0013] 7. A reflux-pressurized gas power device, which is the reflux-pressurized gas power device described in item 1 or 2, by adding a regenerator and a second regenerator, adjusting the air passage of the diffuser to be connected to the outside via the regenerator, adjusting the air passage of the expander to be connected to the cold source heat exchanger via the regenerator and the second regenerator, and adjusting the air passage of the compressor to be connected to the diffuser via the second regenerator, thus forming a reflux-pressurized gas power device.

[0014] 8. A reflux-pressurized gas power device, which is the reflux-pressurized gas power device described in item 1 or 2, by adding a regenerator and a second regenerator, adjusting the expansion unit's air passage connection to the cold source heat exchanger to the expansion unit having an air passage connected to itself via the regenerator, and then the expansion unit having an air passage connected to the cold source heat exchanger via the second regenerator, adjusting the compressor's air passage connection to the diffuser to the compressor having an air passage connected to the diffuser after the second regenerator, and adjusting the diffuser's air passage connection to the outside to the diffuser having an air passage connected to the outside via the regenerator, thus forming a reflux-pressurized gas power device.

[0015] 9. A reflux boosting gas power device, which is any of the reflux boosting gas power devices described in items 1-8, with the addition of an ejector chamber, and the air passages of the compressor and the nozzle are combined and connected to the diffuser pipe, so that the air passages of the compressor, the nozzle, and the ejector pipe are connected to the ejector chamber, and the ejector chamber has an air passage connected to the diffuser pipe, thus forming a reflux boosting gas power device.

[0016] 10. A recirculating pressurized gas power device, wherein in any of the recirculating pressurized gas power devices described in items 1-9, air is changed to a heat source medium to form a recirculating pressurized gas power device. Attached image description:

[0017] Figure 1 This is a schematic diagram of the first principle thermodynamic system of the reflux pressurization gas power device provided by the present invention.

[0018] Figure 2 This is a second principle thermodynamic system diagram of a reflux pressurization gas power device provided by the present invention.

[0019] Figure 3 This is a third principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0020] Figure 4 This is a fourth principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0021] Figure 5This is a fifth principle thermodynamic system diagram of a reflux pressurization gas power device provided by the present invention.

[0022] Figure 6 This is a sixth principle thermodynamic system diagram of a reflux pressurization gas power device provided by the present invention.

[0023] Figure 7 This is the seventh principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0024] Figure 8 This is the eighth principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0025] Figure 9 This is the ninth principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0026] Figure 10 This is a principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0027] Figure 11 This is the 11th principle thermodynamic system diagram of the reflux boosting gas power device provided by the present invention.

[0028] Figure 12 This is the 12th principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0029] Figure 13 This is a principle thermodynamic system diagram of the 13th type of reflux pressurization gas power device provided by the present invention.

[0030] Figure 14 This is the 14th principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0031] Figure 15 This is the 15th principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0032] Figure 16 This is the 16th principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0033] Figure 17 This is the 17th principle thermodynamic system diagram of the reflux pressurization gas power device provided by the present invention.

[0034] In the diagram, 1-nozzle, 2-diffuser, 3-expander, 4-cold source heat exchanger, 5-compressor, 6-regenerator, 7-second regenerator, A-new expander, B-ejector chamber.

[0035] Regarding the ejection chamber, it should be noted that:

[0036] Appendix Figure 17 The ejector chamber B is where the first high-speed air discharged from nozzle 1 meets the ejected air; in other words, ejector chamber B includes both the first outlet air passage of nozzle 1 and the air discharge passage of compressor 5; therefore, attached... Figure 1-16 In the technical solution shown, the "ejector chamber" is concealed in the air channel, and this application chooses not to describe it. Detailed implementation method:

[0037] 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.

[0038] Figure 1 The reflux pressurization gas power device shown is implemented as follows:

[0039] (1) Structurally, it is mainly composed of a nozzle, a diffuser, an expander, a cold source heat exchanger and a compressor; there is an external air passage connected to the nozzle 1, which is then divided into two paths - the first air passage is connected to the diffuser 2 and the second air passage is connected to the expander 3. The expander 3 also has an air passage connected to the cold source heat exchanger 4. The cold source heat exchanger 4 also has an air passage connected to the compressor 5. The compressor 5 has an air passage and the nozzle 1 has a first air passage that merges and connects to the diffuser 2. The diffuser 2 also has an air passage connected to the outside. The cold source heat exchanger 4 also has a cold source medium passage connected to the outside. The expander 3 is connected to the compressor 5 and transmits power.

[0040] (2) In terms of process, external air flows through nozzle 1 to reduce pressure and increase speed, and then splits into two paths - the first path is provided to diffuser 2 and the second path is provided to expander 3; the air flows through expander 3 to reduce speed and reduce pressure to do work, flows through cold source heat exchanger 4 to release heat and reduce temperature, flows through compressor 5 to increase pressure and temperature or increase pressure and temperature and increase speed, is injected by air from nozzle 1, merges and flows together through diffuser 2 to reduce speed and increase pressure, and then is discharged to the outside; the air provides driving heat load through the inlet and outlet process, the cold source medium carries away the discharged heat load through the cold source heat exchanger 4, and the work output by expander 3 is provided to compressor 5 and external working power to form a return flow pressurized gas power device.

[0041] Figure 2 The reflux pressurization gas power device shown is implemented as follows:

[0042] (1) Structurally, it is mainly composed of a nozzle, a diffuser, an expander, a cold source heat exchanger and a compressor. There is an external air channel connecting the nozzle 1 and then the diffuser 2. There is also an external air channel connecting the expander 3. The expander 3 also has an air channel connecting the cold source heat exchanger 4. The cold source heat exchanger 4 also has an air channel connecting the compressor 5. The compressor 5 has an air channel that merges with the air channel of the nozzle 1 and connects to the diffuser 2. The diffuser 2 also has an air channel connecting to the outside. The cold source heat exchanger 4 also has a cold source medium channel connecting to the outside. The expander 3 connects to the compressor 5 and transmits power.

[0043] (2) In terms of process, with Figure 1 Compared to the reflux boosting gas power device shown, the difference lies in the following: the first external airflow passes through the nozzle 1, where it is depressurized and accelerated, and then supplied to the diffuser 2; the second external airflow passes through the expander 3, where it is depressurized and performs work, then passes through the cold source heat exchanger 4, where it is deheated and cooled, and then passes through the compressor 5, where it is pressurized and heated or pressurized and heated and accelerated. It is then injected by the air from the nozzle 1, merged and flows together through the diffuser 2, where it is depressurized and pressurized, and then discharged to the outside; the air provides the driving heat load through the inlet and outlet process, the cold source medium carries away the discharged heat load by passing through the cold source heat exchanger 4, and the work output by the expander 3 is provided to the compressor 5 and the external working power, forming the reflux boosting gas power device.

[0044] Figure 3 The reflux pressurization gas power device shown is implemented as follows:

[0045] (1) Structurally, in Figure 1 In the reflux pressurization gas power device shown, a regenerator is added, and the air passage of the expander 3 is connected to the cold source heat exchanger 4, which is adjusted so that the air passage of the expander 3 is connected to the cold source heat exchanger 4 via the regenerator 6. The air passage of the compressor 5 is connected to the diffuser 2, which is adjusted so that the air passage of the compressor 5 is connected to the diffuser 2 via the regenerator 6.

[0046] (2) In terms of process, with Figure 1 Compared to the reflux boosting gas power device shown, the difference is that the air discharged from the expander 3 flows through the regenerator 6 and the cold source heat exchanger 4 to gradually release heat and cool down, and then supplies it to the compressor 5; the air discharged from the compressor 5 flows through the regenerator 6 to absorb heat and heat up, and then is injected by the air from the nozzle 1, merged and flows together through the diffuser 2 to slow down and pressurize, and then is discharged to the outside, forming a reflux boosting gas power device.

[0047] Figure 4 The reflux pressurization gas power device shown is implemented as follows:

[0048] (1) Structurally, in Figure 1In the reflux pressurization gas power device shown, a regenerator is added, and the air passage of the expander 3 is connected to the cold source heat exchanger 4, which is adjusted to the expander 3 having an air passage connected to the cold source heat exchanger 4 via the regenerator 6. The air passage of the diffuser 2 is connected to the outside, which is adjusted to the diffuser 2 having an air passage connected to the outside via the regenerator 6.

[0049] (2) In terms of process, with Figure 1 Compared with the reflux pressurization gas power device shown, the difference is that the air discharged from the diffuser 2 flows through the regenerator 6 to absorb heat and increase its temperature, and then is discharged to the outside; the air discharged from the expander 3 flows through the regenerator 6 to release heat and decrease its temperature, and then is supplied to the cold source heat exchanger 4 to form a reflux pressurization gas power device.

[0050] Figure 5 The reflux pressurization gas power device shown is implemented as follows:

[0051] (1) Structurally, in Figure 1 In the reflux pressurization gas power device shown, a regenerator is added. The expander 3 is adjusted so that it has an air passage connected to the cold source heat exchanger 4, and then the expander 3 has an air passage connected to the cold source heat exchanger 4. The compressor 5 is adjusted so that it has an air passage connected to the diffuser 2, and then the compressor 5 ...

[0052] (2) In terms of process, with Figure 1 Compared to the reflux pressurization gas power device shown, the difference lies in the following: the second stream of air discharged from the nozzle 1 enters the expander 3 to reduce speed and pressure, and after reaching a certain level, it flows through the regenerator 6 to release heat and cool down, and then enters the expander 3 to continue the energy conversion process, and then provides it to the cold source heat exchanger 4; the air discharged from the compressor 5 flows through the regenerator 6 to absorb heat and increase temperature, and then is injected by the air from the nozzle 1, merged and flows together through the diffuser 2 to reduce speed and increase pressure, and then is discharged to the outside, forming a reflux pressurization gas power device.

[0053] Figure 6 The reflux pressurization gas power device shown is implemented as follows:

[0054] (1) Structurally, in Figure 1 In the reflux pressurization gas power device shown, a regenerator is added. The air passage of the diffuser 2 is changed from being connected to the outside to being connected to the outside via the regenerator 6. The air passage of the expander 3 is changed from being connected to the cold source heat exchanger 4 to being connected to itself via the regenerator 6. After that, the expander 3 has an air passage connected to the cold source heat exchanger 4.

[0055] (2) In terms of process, with Figure 1Compared to the reflux pressurization gas power device shown, the difference is that the air discharged from the diffuser 2 flows through the regenerator 6 to absorb heat and increase its temperature before being discharged to the outside; the second stream of air discharged from the nozzle 1 enters the expander 3 to reduce speed and do work or to reduce speed and pressure and do work. After reaching a certain level, it flows through the regenerator 6 to release heat and reduce its temperature before entering the expander 3 to continue the energy conversion process. Then it is supplied to the cold source heat exchanger 4 to form a reflux pressurization gas power device.

[0056] Figure 7 The reflux pressurization gas power device shown is implemented as follows:

[0057] (1) Structurally, in Figure 1 In the reflux pressurization gas power device shown, a regenerator and a second regenerator are added. The air passage of the diffuser 2 is changed to be connected to the outside via the regenerator 6. The air passage of the expander 3 is changed to be connected to the cold source heat exchanger 4 via the regenerator 6 and the second regenerator 7. The air passage of the compressor 5 is changed to be connected to the diffuser 2 via the second regenerator 7.

[0058] (2) In terms of process, with Figure 1 Compared to the reflux pressurization gas power device shown, the difference is that the air discharged from the expander 3 flows through the regenerator 6, the second regenerator 7 and the cold source heat exchanger 4 to gradually release heat and cool down, and then supplies it to the compressor 5; the air discharged from the compressor 5 flows through the second regenerator 7 to absorb heat and increase temperature, and then is injected by the air from the nozzle 1, merged and flows together through the diffuser 2 to decrease speed and increase pressure, flows through the regenerator 6 to absorb heat and increase temperature, and then is discharged to the outside, forming a reflux pressurization gas power device.

[0059] Figure 8 The reflux pressurization gas power device shown is implemented as follows:

[0060] (1) Structurally, in Figure 1 In the reflux pressurization gas power device shown, a regenerator and a second regenerator are added. The expander 3 is adjusted so that it has an air passage connecting it to the cold source heat exchanger 4, and then the expander 3 has an air passage connecting it to itself via the regenerator 6. The expander 3 then has an air passage connecting it to the cold source heat exchanger 4 via the second regenerator 7. The compressor 5 is adjusted so that it has an air passage connecting it to the diffuser 2, and then the compressor 5 has an air passage connecting it to the diffuser 2 via the second regenerator 7. The diffuser 2 is adjusted so that it has an air passage connecting it to the outside via the regenerator 6.

[0061] (2) In terms of process, with Figure 2Compared to the reflux-pressurization gas power device shown, the difference lies in the following: the second stream of air discharged from the nozzle 1 enters the expander 3 to perform work by slowing down or slowing down and depressurizing. After reaching a certain level, it flows through the regenerator 6 to release heat and cool down, and then enters the expander 3 to continue the energy conversion process. After that, it flows through the second regenerator 7 to release heat and cool down, and is supplied to the cold source heat exchanger 4. The air discharged from the compressor 5 flows through the second regenerator 7 to absorb heat and increase its temperature. Then, it is injected by the air from the nozzle 1, merges and flows together through the diffuser 2 to slow down and increase its pressure. It flows through the regenerator 6 to release heat and cool down, and then is discharged to the outside, forming a reflux-pressurization gas power device.

[0062] Figure 9 The reflux pressurization gas power device shown is implemented as follows:

[0063] (1) Structurally, in Figure 2 In the reflux pressurization gas power device shown, a regenerator is added, and the air passage of the expander 3 is connected to the cold source heat exchanger 4, which is adjusted so that the air passage of the expander 3 is connected to the cold source heat exchanger 4 via the regenerator 6. The air passage of the compressor 5 is connected to the diffuser 2, which is adjusted so that the air passage of the compressor 5 is connected to the diffuser 2 via the regenerator 6.

[0064] (2) In terms of process, with Figure 2 Compared to the reflux boosting gas power device shown, the difference is that the air discharged from the expander 3 flows through the regenerator 6 and the cold source heat exchanger 4 to gradually release heat and cool down, and then supplies it to the compressor 5; the air discharged from the compressor 5 flows through the regenerator 6 to absorb heat and heat up, and then is injected by the air from the nozzle 1, merged and flows together through the diffuser 2 to slow down and pressurize, and then is discharged to the outside, forming a reflux boosting gas power device.

[0065] Figure 10 The reflux pressurization gas power device shown is implemented as follows:

[0066] (1) Structurally, in Figure 2 In the reflux pressurization gas power device shown, a regenerator is added, and the air passage of the expander 3 is connected to the cold source heat exchanger 4, which is adjusted to the expander 3 having an air passage connected to the cold source heat exchanger 4 via the regenerator 6. The air passage of the diffuser 2 is connected to the outside, which is adjusted to the diffuser 2 having an air passage connected to the outside via the regenerator 6.

[0067] (2) In terms of process, with Figure 2 Compared with the reflux pressurization gas power device shown, the difference is that the air discharged from the diffuser 2 flows through the regenerator 6 to absorb heat and increase its temperature, and then is discharged to the outside; the air discharged from the expander 3 flows through the regenerator 6 to release heat and decrease its temperature, and then is supplied to the cold source heat exchanger 4 to form a reflux pressurization gas power device.

[0068] Figure 11The reflux pressurization gas power device shown is implemented as follows:

[0069] (1) Structurally, in Figure 2 In the reflux pressurization gas power device shown, a regenerator is added. The expander 3 is adjusted so that it has an air passage connected to the cold source heat exchanger 4, and then the expander 3 has an air passage connected to the cold source heat exchanger 4. The compressor 5 is adjusted so that it has an air passage connected to the diffuser 2, and then the compressor 5 ...

[0070] (2) In terms of process, with Figure 2 Compared to the reflux boosting gas power device shown, the difference is that: the external second air enters the expander 3 to reduce pressure and do work, and after reaching a certain level, it flows through the regenerator 6 to release heat and cool down, and then enters the expander 3 to continue to reduce pressure and do work, and then provides it to the cold source heat exchanger 4; the air discharged from the compressor 5 flows through the regenerator 6 to absorb heat and increase temperature, and then is injected by the air from the nozzle 1, merges and flows together through the diffuser 2 to reduce speed and increase pressure, and then is discharged to the outside, forming a reflux boosting gas power device.

[0071] Figure 12 The reflux pressurization gas power device shown is implemented as follows:

[0072] (1) Structurally, in Figure 2 In the reflux pressurization gas power device shown, a regenerator is added. The air passage of the diffuser 2 is changed from being connected to the outside to being connected to the outside via the regenerator 6. The air passage of the expander 3 is changed from being connected to the cold source heat exchanger 4 to being connected to itself via the regenerator 6. After that, the expander 3 has an air passage connected to the cold source heat exchanger 4.

[0073] (2) In terms of process, with Figure 2 Compared with the reflux pressurization gas power device shown, the difference is that the air discharged from the diffuser 2 flows through the regenerator 6 to absorb heat and increase its temperature, and then is discharged to the outside; the second external air enters the expander 3 to reduce its pressure and do work, and after reaching a certain level, it flows through the regenerator 6 to release heat and cool down, and then enters the expander 3 to continue to reduce its pressure and do work, and then is supplied to the cold source heat exchanger 4 to form a reflux pressurization gas power device.

[0074] Figure 13 The reflux pressurization gas power device shown is implemented as follows:

[0075] (1) Structurally, in Figure 2In the reflux pressurization gas power device shown, a regenerator and a second regenerator are added. The air passage of the diffuser 2 is changed to be connected to the outside via the regenerator 6. The air passage of the expander 3 is changed to be connected to the cold source heat exchanger 4 via the regenerator 6 and the second regenerator 7. The air passage of the compressor 5 is changed to be connected to the diffuser 2 via the second regenerator 7.

[0076] (2) In terms of process, with Figure 2 Compared to the reflux pressurization gas power device shown, the difference is that the air discharged from the expander 3 flows through the regenerator 6, the second regenerator 7 and the cold source heat exchanger 4 to gradually release heat and cool down, and then supplies it to the compressor 5; the air discharged from the compressor 5 flows through the second regenerator 7 to absorb heat and increase temperature, and then is injected by the air from the nozzle 1, merged and flows together through the diffuser 2 to decrease speed and increase pressure, flows through the regenerator 6 to absorb heat and increase temperature, and then is discharged to the outside, forming a reflux pressurization gas power device.

[0077] Figure 14 The reflux pressurization gas power device shown is implemented as follows:

[0078] (1) Structurally, in Figure 2 In the reflux pressurization gas power device shown, a regenerator and a second regenerator are added. The expander 3 is adjusted so that the air passage connecting it to the cold source heat exchanger 4 is changed to the expander 3 having an air passage that connects it to itself via the regenerator 6, and then the expander 3 has an air passage that connects it to the cold source heat exchanger 4 via the second regenerator 7. The compressor 5 is adjusted so that the air passage connecting it to the diffuser 2 is changed to the compressor 5 having an air passage that connects it to the diffuser 2 after passing through the second regenerator 7. The diffuser 2 is adjusted so that the air passage connecting it to the outside is changed to the diffuser 2 having an air passage that connects it to the outside via the regenerator 6.

[0079] (2) In terms of process, with Figure 2 Compared to the reflux pressurization gas power device shown, the difference is that: the external second air enters the expander 3 to reduce pressure and do work, and after reaching a certain level, it flows through the regenerator 6 to release heat and cool down, then enters the expander 3 to continue to reduce pressure and do work, and then flows through the second regenerator 7 to release heat and cool down, and is supplied to the cold source heat exchanger 4; the air discharged from the compressor 5 flows through the second regenerator 7 to absorb heat and increase temperature, and is then injected by the air from the nozzle 1, merged and flows together through the diffuser 2 to reduce speed and increase pressure, flows through the regenerator 6 to release heat and cool down, and is then discharged to the outside, forming a reflux pressurization gas power device.

[0080] Figure 15 The reflux pressurization gas power device shown is implemented as follows:

[0081] exist Figure 1In the reflux pressurization gas power device shown, air is replaced by a heat source medium; the heat source medium provides driving heat load through the inlet and outlet of the process, forming a reflux pressurization gas power device.

[0082] Figure 16 The reflux pressurization gas power device shown is implemented as follows:

[0083] (1) Structurally, in Figure 1 In the reflux booster gas power device shown, an additional expander A is added, and the external air passage connected to the nozzle 1 is adjusted to have an external air passage connected to the nozzle 1 via the additional expander A.

[0084] (2) In terms of process, with Figure 1 Compared with the reflux boosting gas power device shown, the difference is that: the external air flows through the expander A to reduce pressure and do work, and then enters the nozzle 1 to reduce pressure and increase speed; the mechanical energy output by the expander 3 and the newly added expander A is provided to the compressor 5 and the external power, or the mechanical energy output by the expander 3 is provided to the compressor 5 to do work and the mechanical energy output by the newly added expander A is provided to the external power, thus forming a reflux boosting gas power device.

[0085] Figure 17 The reflux pressurization gas power device shown is implemented as follows:

[0086] (1) Structurally, in Figure 1 In the reflux pressurization gas power device shown, an ejector chamber B is added, and the air passages of compressor 5 and nozzle 1 are combined and connected to diffuser 2. The compressor 5 has an air passage connected to ejector chamber B, nozzle 1 has an air passage connected to ejector chamber B, and ejector chamber B has an air passage connected to diffuser 2.

[0087] (2) In terms of process, with Figure 1 Compared with the reflux boosting gas power device shown, the difference is that: the first air channel discharged from the nozzle 1 enters the ejector chamber B, the air discharged from the ejector compressor 5 enters the ejector chamber B, and the air discharged from the ejector chamber B enters the diffuser 2 to reduce speed, increase pressure and increase temperature, forming a reflux boosting gas power device.

[0088] The effects achievable by this invention—the reflux pressurization gas power device proposed in this invention has the following effects and advantages:

[0089] (1) The pressure increase and depressurization process of the working medium in complex components is shortened, and the heat source medium is directly used as the working medium, reducing irreversible process losses.

[0090] (2) It significantly reduces the workload of the compressor and expander, correspondingly reduces the size of the gas power unit, lowers manufacturing costs, and improves economic efficiency.

[0091] (3) Mechanical energy and macroscopic kinetic energy realize the working medium pressure boosting process - which is conducive to significantly increasing the pressure boosting ratio of the working medium, thereby increasing the working range of the circulation device and realizing the deep utilization of cold resources.

[0092] (4) It significantly reduces the complexity of the working medium in the entire pressurization and depressurization process, significantly reduces the mechanical transmission share of energy, reduces systemic irreversible losses, and improves resource utilization efficiency.

[0093] (5) Significantly reduces the pressure boosting process undertaken by the compressor, effectively resolves the contradiction between the pressure boosting ratio and the working medium flow rate, and is conducive to the construction of high-power gas power devices.

[0094] (6) It has enriched the types of gas power devices, greatly promoted the progress of gas power technology, and is conducive to better utilizing cold and hot resources to obtain power, resulting in high comprehensive benefits.

Claims

1. A recirculating pressurized gas power unit mainly consists of a nozzle, a diffuser, an expander, a cold source heat exchanger, and a compressor; an external air passage connects to the nozzle (1), which then splits into two paths—the first air passage connects to the diffuser (2) and the second air passage connects to the expander (3). The expander (3) also has an air passage connecting to the cold source heat exchanger (4), and the cold source heat exchanger (4) also has an air passage connecting to the compressor (5). The compressor (5) has an air passage that merges with the first air passage of the nozzle (1) and connects to the diffuser (2). The diffuser (2) also has an air passage connecting to the outside. The cold source heat exchanger (4) also has a cold source medium passage connecting to the outside. The expander (3) connects to the compressor (5) and transmits power, forming a recirculating pressurized gas power unit; among which, Alternatively, an additional expander (A) can be added, and the external air passage connected to the nozzle (1) can be adjusted so that the external air passage is connected to the nozzle (1) via the additional expander (A).

2. The recirculating pressurized gas power unit is mainly composed of a nozzle, a diffuser, an expander, a cold source heat exchanger, and a compressor. An external air channel connects the nozzle (1) to the diffuser (2), and an external air channel connects the expander (3). The expander (3) also has an air channel that connects to the cold source heat exchanger (4), and the cold source heat exchanger (4) also has an air channel that connects to the compressor (5). The compressor (5) has an air channel that merges with the air channel of the nozzle (1) and connects to the diffuser (2). The diffuser (2) also has an air channel that connects to the outside. The cold source heat exchanger (4) also has a cold source medium channel that connects to the outside. The expander (3) connects to the compressor (5) and transmits power, forming a recirculating pressurized gas power unit.

3. A reflux boosting gas power device is a reflux boosting gas power device according to claim 1 or claim 2, wherein a regenerator is added, the expander (3) is connected to the cold source heat exchanger (4) via an air passage, and the expander (3) is connected to the cold source heat exchanger (4) via an air passage through the regenerator (6), and the compressor (5) is connected to the diffuser (2) via an air passage through the regenerator (6), thereby forming a reflux boosting gas power device.

4. A reflux pressurization gas power device is a reflux pressurization gas power device according to claim 1 or claim 2, wherein a regenerator is added, the expander (3) is connected to the cold source heat exchanger (4) via an air channel, and the expander (3) is connected to the cold source heat exchanger (4) via an air channel through the regenerator (6), and the diffuser (2) is connected to the outside via an air channel through an air channel through the regenerator (6), thereby forming a reflux pressurization gas power device.

5. A reflux boosting gas power device is a reflux boosting gas power device according to claim 1 or claim 2, wherein a regenerator is added, the expander (3) is connected to the cold source heat exchanger (4) through an air channel, and the expander (3) is connected to itself through the regenerator (6), and then the expander (3) is connected to the cold source heat exchanger (4) through an air channel, and the compressor (5) is connected to the diffuser (2) through an air channel, and the compressor (5) is connected to the diffuser (2) through the regenerator (6), thus forming a reflux boosting gas power device.

6. A reflux pressurization gas power device is a reflux pressurization gas power device according to claim 1 or claim 2, wherein a regenerator is added, the diffuser (2) is adjusted to have an air channel connected to the outside, and the diffuser (2) has an air channel connected to the outside via the regenerator (6), and the expander (3) is adjusted to have an air channel connected to the cold source heat exchanger (4), and the expander (3) has an air channel connected to itself via the regenerator (6), and then the expander (3) has an air channel connected to the cold source heat exchanger (4), thus forming a reflux pressurization gas power device.

7. A reflux boosting gas power device is a reflux boosting gas power device according to claim 1 or claim 2, wherein a regenerator and a second regenerator are added, the diffuser (2) is adjusted to have an air passage connected to the outside so that the diffuser (2) has an air passage connected to the outside through the regenerator (6), the expander (3) is adjusted to have an air passage connected to the cold source heat exchanger (4) so ​​that the expander (3) has an air passage connected to the cold source heat exchanger (4) after passing through the regenerator (6) and the second regenerator (7), and the compressor (5) is adjusted to have an air passage connected to the diffuser (2) so that the compressor (5) has an air passage connected to the diffuser (2) through the second regenerator (7), thereby forming a reflux boosting gas power device.

8. A reflux boosting gas power device is a reflux boosting gas power device according to claim 1 or claim 2, wherein a regenerator and a second regenerator are added, the expander (3) is connected to the cold source heat exchanger (4) through an air passage, and the expander (3) is connected to itself through the regenerator (6) through an air passage, and the expander (3) is connected to the cold source heat exchanger (4) through the second regenerator (7) through an air passage, the compressor (5) is connected to the diffuser (2) through an air passage, and the compressor (5) is connected to the diffuser (2) through the second regenerator (7) through an air passage, and the diffuser (2) is connected to the outside through an air passage, and the diffuser (2) is connected to the outside through the regenerator (6) through an air passage, thus forming a reflux boosting gas power device.

9. A reflux boosting gas power device is a reflux boosting gas power device according to any one of claims 1-8, wherein an ejector chamber (B) is added, and the air passages of the compressor (5) and the nozzle (1) are combined and connected to the diffuser (2) so that the compressor (5) has an air passage connected to the ejector chamber (B), the nozzle (1) has an air passage connected to the ejector chamber (B), and the ejector chamber (B) has an air passage connected to the diffuser (2), thereby forming a reflux boosting gas power device.

10. A recirculating pressurized gas power device, wherein in any one of the recirculating pressurized gas power devices described in claims 1-9, air is changed to a heat source medium to form a recirculating pressurized gas power device.

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