Refluxed boosted gas compression heat pump

Abstract

The application provides a reflux pressure-boosting gas compression heat pump, and belongs to the technical field of refrigeration and heat pump. The external working medium channel is communicated with the compressor. The compressor has a working medium channel and a working medium channel of the nozzle, both of which are communicated with the diffuser. The diffuser has a working medium channel, which is communicated with the newly added compressor and then communicated with the heat supply device. The heat supply device has a working medium channel, which is divided into two paths. The first path is communicated with the nozzle and then communicated with the diffuser. The second path is communicated with the expander and then communicated with the outside. The heat supply device has a heated medium channel, which is communicated with the outside. The expander and the newly added expander are connected with the compressor and transmit power, forming the reflux pressure-boosting gas compression heat pump.

Description

Technical fields:

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

[0002] Gas compression heat pumps, which operate on the reverse Brayton cycle principle, can directly use air as the working medium and low-temperature heat source, and have a wide range of applications. As the energy transition continues to deepen, people hope that gas compression heat pumps will have more reasonable processes, structures and performance indices, and be able to achieve efficient high-temperature heating. To this end, those skilled in the art have made unremitting efforts.

[0003] Looking at the main components of a gas compression heat pump, the compressor and expander are essential core components. Through years of theoretical research and engineering practice, and after in-depth consideration and careful analysis, we have found that:

[0004] From the perspective of energy conversion, there is a repetition between the pressurization process of the working medium in the compressor and the depressurization process in the expander. This not only complicates the compressor and expander, but also increases the systemic irreversible losses.

[0005] For open-type gas compression heat pump devices, based on the basic principles of simple and efficient use of mechanical energy for refrigeration / heating, and taking the reduction of the repetitive process between the compressor pressurization process and the expander depressurization process as the starting point, a recirculation pressurization gas compression heat pump with reasonable process, simple system, reasonable performance index, and the ability to achieve deep refrigeration and high-temperature heating is proposed. Summary of the Invention:

[0006] The main objective of this invention is to provide a recirculation-pressurized gas compression heat pump. The specific contents of the invention are described in detail below:

[0007] 1. A recirculating, pressurized gas compression heat pump mainly consists of a compressor, a diffuser, a heater, a nozzle, and an expander. It has an external working medium channel connected to the compressor. The compressor and nozzle each have a working medium channel, which converge and connect to the diffuser. The diffuser also has a working medium channel connected to the heater. The heater has a working medium channel that splits into two paths—the first path connects to the nozzle and then to the diffuser, and the second path connects to the expander and then to the outside. The heater also has a heated medium channel connected to the outside. The expander connects to the compressor and transmits power, forming a recirculating, pressurized gas compression heat pump.

[0008] 2. A recirculating, pressurized gas compression heat pump mainly consists of a compressor, diffuser, heater, nozzle, expander, and regenerator. An external working medium channel connects to the compressor via the regenerator. The compressor and nozzle each have a working medium channel, which merges and connects to the diffuser. The diffuser also has a working medium channel connecting to the heater. The heater has a working medium channel that splits into two paths: the first path connects to the nozzle and then to the diffuser, and the second path connects to the expander. The expander then has a working medium channel connecting to itself via the regenerator. The expander also has a working medium channel connecting to the outside. The heater also has a channel for the heated medium connecting to the outside. The expander connects to the compressor and transmits power, forming a recirculating, pressurized gas compression heat pump.

[0009] 3. A recirculating, pressurized gas compression heat pump mainly consists of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. An external working medium channel connects to the compressor via the regenerator. The compressor and nozzle each have a working medium channel, which merges and connects to the diffuser. The diffuser also has a working medium channel connecting to the heater. The heater's working medium channel, after passing through the regenerator, splits into two paths—the first path connects to the nozzle and then to the diffuser, and the second path connects to the expander and then to the external environment. The heater also has a channel for the heated medium connecting to the external environment. The expander connects to the compressor and transmits power, forming a recirculating, pressurized gas compression heat pump.

[0010] 4. A recirculating, pressurized gas compression heat pump mainly consists of a compressor, diffuser, heater, nozzle, expander, and regenerator. An external working medium channel connects to the compressor, which in turn has a working medium channel that connects to itself via the regenerator. The compressor and nozzle have working medium channels that converge and connect to the diffuser. The diffuser also has a working medium channel that connects to the heater. The heater's working medium channel, after passing through the regenerator, splits into two paths: the first path connects to the nozzle and then to the diffuser, and the second path connects to the expander and then to the external environment. The heater also has a channel for the heated medium that connects to the external environment. The expander connects to the compressor and transmits power, forming a recirculating, pressurized gas compression heat pump.

[0011] 5. A recirculating, pressurized gas compression heat pump mainly consists of a compressor, diffuser, heater, nozzle, expander, regenerator, and second regenerator. An external working medium channel connects to the compressor via the regenerator. The compressor then has its own working medium channel connected to the second regenerator. The compressor and nozzle each have their own working medium channels, which converge and connect to the diffuser. The diffuser also has a working medium channel connecting to the heater. The heater, in turn, has a working medium channel connecting to the second regenerator, which then splits into two paths: the first path connects to the nozzle and then to the diffuser; the second path connects to the expander, which in turn has its own working medium channel connected to the regenerator and to the outside. The heater also has a channel for the heated medium connected to the outside. The expander connects to the compressor and transmits power, thus forming a recirculating, pressurized gas compression heat pump.

[0012] 6. A recirculating, pressurized gas compression heat pump mainly consists of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. An external working medium channel connects to the compressor via the regenerator. The compressor has a working medium channel, and the nozzle has a first working medium channel, which merges and connects to the diffuser. The diffuser also has a working medium channel connecting to the heater. The heater also has a working medium channel connecting to the nozzle, which then splits into two paths—the first working medium channel connects to the diffuser, and the second working medium channel connects to the expander. The expander also has a working medium channel connecting to itself via the regenerator, and then another working medium channel connecting to the outside. The heater also has a channel for the heated medium connecting to the outside. The expander connects to the compressor and transmits power, forming a recirculating, pressurized gas compression heat pump.

[0013] 7. A recirculating, pressurized gas compression heat pump mainly consists of a compressor, diffuser, heater, nozzle, expander, regenerator, and second regenerator. Externally, there is a working medium channel that connects to the compressor via the regenerator and second regenerator. The compressor has a working medium channel, and the nozzle has a first working medium channel, which merges and connects to the diffuser. The diffuser also has a working medium channel that connects to the heater. The heater also has a working medium channel that connects to the second regenerator and the nozzle, then splits into two paths—the first working medium channel connects to the diffuser, and the second working medium channel connects to the expander. The expander also has a working medium channel that connects to itself via the regenerator, and then another working medium channel that connects to the outside. The heater also has a channel for the heated medium that connects to the outside. The expander connects to the compressor and transmits power, forming a recirculating, pressurized gas compression heat pump.

[0014] 8. A recirculating, pressurized gas compression heat pump mainly consists of a compressor, diffuser, heater, nozzle, expander, regenerator, and second regenerator. Externally, there is a working medium channel connecting the compressor to the regenerator. The compressor also has a working medium channel connecting to itself via the second regenerator. The compressor has a working medium channel, and the nozzle has a first working medium channel, which merges and connects to the diffuser. The diffuser also has a working medium channel connecting to the heater. The heater also has a working medium channel connecting to the nozzle via the second regenerator, after which it splits into two paths—the first working medium channel connects to the diffuser, and the second working medium channel connects to the expander. The expander also has a working medium channel connecting to itself via the regenerator, and then another working medium channel connecting to the outside. The heater also has a channel for the heated medium connecting to the outside. The expander connects to the compressor and transmits power, forming a recirculating, pressurized gas compression heat pump.

[0015] 9. A recirculating pressurized gas compression heat pump is formed by adding a new compressor to any of the recirculating pressurized gas compression heat pumps described in items 1-8, and adjusting the diffuser tube from having a working medium channel connected to the heater to having a working medium channel connected to the heater after passing through the new compressor, thus forming a recirculating pressurized gas compression heat pump.

[0016] 10. A recirculating pressurized gas compression heat pump is any one of the recirculating pressurized gas compression heat pumps described in items 1-9, with the addition of an ejector chamber. The working medium channels of the compressor and the nozzle are combined and connected to the diffuser. The compressor has a working medium channel connected to the ejector chamber, the nozzle has a working medium channel connected to the ejector chamber, and the ejector chamber has a working medium channel connected to the diffuser, thus forming a recirculating pressurized gas compression heat pump. Attached image description:

[0017] Figure 1 This is a schematic diagram of the first principle thermodynamic system of a reflux-pressurized gas compression heat pump provided by the present invention.

[0018] Figure 2 This is a schematic diagram of the second principle thermodynamic system of a reflux-pressurized gas compression heat pump provided by the present invention.

[0019] Figure 3 This is a schematic diagram of the third principle thermodynamic system of a reflux-pressurized gas compression heat pump provided by the present invention.

[0020] Figure 4 This is a schematic diagram of the fourth principle thermodynamic system of a reflux-pressurized gas compression heat pump provided by the present invention.

[0021] Figure 5 This is a fifth principle thermodynamic system diagram of a reflux-pressurized gas compression heat pump provided by the present invention.

[0022] Figure 6 This is a schematic diagram of the sixth principle thermodynamic system of a reflux-pressurized gas compression heat pump provided by the present invention.

[0023] Figure 7 This is the seventh principle thermodynamic system diagram of a reflux-pressurized gas compression heat pump provided by the present invention.

[0024] Figure 8 This is the eighth principle thermodynamic system diagram of a reflux-pressurized gas compression heat pump provided by the present invention.

[0025] Figure 9 This is the ninth principle thermodynamic system diagram of a reflux-pressurized gas compression heat pump provided by the present invention.

[0026] Figure 10 This is a principle thermodynamic system diagram of a reflux-pressurized gas compression heat pump provided by the present invention.

[0027] In the diagram, 1-compressor, 2-diffuser, 3-heater, 4-nozzle, 5-expander, 6-regenerator, 7-second regenerator, A-new compressor, B-ejector chamber.

[0028] Regarding the ejection chamber, it should be noted that:

[0029] Appendix Figure 10 The ejector chamber B is where the high-speed working medium discharged from the nozzle 4 meets the ejected working medium; in other words, the ejector chamber B includes both the outlet working medium passage of the nozzle 4 and the discharge working medium passage of the compressor 1; therefore, attached... Figure 1-9 In the technical solution shown, the "ejector chamber" is implicit in the working medium channel, and this application chooses not to describe it. Detailed implementation method:

[0030] 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.

[0031] Figure 1 The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0032] (1) Structurally, it is mainly composed of a compressor, a diffuser, a heater, a nozzle, and an expander. There is a working medium channel outside that is connected to the compressor 1. The compressor 1 has a working medium channel and the nozzle 4 has a working medium channel. The two channels merge and are connected to the diffuser 2. The diffuser 2 also has a working medium channel that is connected to the heater 3. The heater 3 also has a working medium channel that is divided into two paths - the first path is connected to the nozzle 4 and then to the diffuser 2, and the second path is connected to the expander 5 and then to the outside. The heater 3 also has a heated medium channel that is connected to the outside. The expander 5 is connected to the compressor 1 and transmits power.

[0033] (2) In terms of process, the external working medium flows through the compressor 1 to increase pressure, temperature and speed. Then it is injected by the working medium from the nozzle 4, merges and flows together through the diffuser 2 to increase pressure, temperature and speed. Then it enters the heater 3 to release heat and cool down. The working medium discharged from the heater 3 is divided into two paths - the first path flows through the nozzle 4 to decrease pressure, temperature and speed and then is supplied to the diffuser 2. The second path of the working medium flows through the expander 5 to decrease speed and pressure and then is discharged to the outside. The heated medium obtains high temperature heat load through the heater 3. The working medium provides low temperature heat load through the inlet and outlet process. The expander 5 and the outside together provide power to the compressor 1 to form a return flow pressurized gas compression heat pump.

[0034] Figure 2 The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0035] (1) Structurally, it is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. There is a working medium channel outside that connects to the compressor 1 via the regenerator 6. The compressor 1 has a working medium channel and the nozzle 4 has a working medium channel. The two channels merge and connect to the diffuser 2. The diffuser 2 also has a working medium channel that connects to the heater 3. The heater 3 also has a working medium channel that is divided into two paths. The first path connects to the nozzle 4 and then to the diffuser 2. The second path connects to the expander 5. The expander 5 then has a working medium channel that connects to itself via the regenerator 6. The expander 5 also has a working medium channel that connects to the outside. The heater 3 also has a heated medium channel that connects to the outside. The expander 5 is connected to the compressor 1 and transmits power.

[0036] (2) In terms of process, with Figure 1 Compared to the reflux-pressurized gas compression heat pump shown, the difference is that: the external working medium flows through the regenerator 6 to absorb heat and increase its temperature, and then supplies it to the compressor 1; the working medium discharged from the heater 3 enters the expander 5 to reduce its speed and pressure to do work, and after doing work to a certain extent, it flows through the regenerator 6 to release heat and decrease its temperature, and then enters the expander 5 to continue the energy conversion process, and then is discharged to the outside, forming a reflux-pressurized gas compression heat pump.

[0037] Figure 3The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0038] (1) Structurally, it is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. There is a working medium channel outside that connects to the compressor 1 via the regenerator 6. The compressor 1 has a working medium channel and the nozzle 4 has a working medium channel. The two channels merge and connect to the diffuser 2. The diffuser 2 also has a working medium channel that connects to the heater 3. The heater 3 also has a working medium channel that splits into two paths after passing through the regenerator 6. The first path connects to the nozzle 4 and then to the diffuser 2. The second path connects to the expander 5 and then to the outside. The heater 3 also has a heated medium channel that connects to the outside. The expander 5 connects to the compressor 1 and transmits power.

[0039] (2) In terms of process, with Figure 1 Compared to the reflux-pressurized gas compression heat pump shown, the difference is that: the external working medium flows through the regenerator 6 to absorb heat and increase its temperature, and then supplies it to the compressor 1; the working medium discharged from the heater 3 flows through the regenerator 6 to release heat and decrease its temperature, and then splits into two paths - the first path supplies the nozzle 4 and the second path supplies the expander 5, forming a reflux-pressurized gas compression heat pump.

[0040] Figure 4 The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0041] (1) Structurally, it is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. There is a working medium channel outside that connects to the compressor 1. After the compressor 1 has a working medium channel, it connects to itself through the regenerator 6. The compressor 1 has a working medium channel and the nozzle 4 has a working medium channel. The two converge and connect to the diffuser 2. The diffuser 2 also has a working medium channel that connects to the heater 3. The heater 3 also has a working medium channel that splits into two paths after passing through the regenerator 6. The first path connects to the nozzle 4 and then to the diffuser 2. The second path connects to the expander 5 and then to the outside. The heater 3 also has a heated medium channel that connects to the outside. The expander 5 connects to the compressor 1 and transmits power.

[0042] (2) In terms of process, with Figure 1 Compared to the reflux-pressurized gas compression heat pump shown, the difference is that: the external working medium enters the compressor 1 to increase its pressure and temperature, and after reaching a certain level, it flows through the regenerator 6 to absorb heat and increase its temperature, and then enters the compressor 1 again to increase its pressure and temperature or to increase its pressure and temperature and increase its speed; the working medium discharged from the heater 3 flows through the regenerator 6 to release heat and cool down, and then splits into two paths - the first path supplies the nozzle 4 and the second path supplies the expander 5, forming a reflux-pressurized gas compression heat pump.

[0043] Figure 5 The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0044] (1) Structurally, it is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, a regenerator, and a second regenerator. There is a working medium channel outside that connects to the compressor 1 via the regenerator 6. The compressor 1 then has a working medium channel that connects to itself via the second regenerator 7. The compressor 1 has a working medium channel and the nozzle 4 has a working medium channel. The two converge and connect to the diffuser 2. The diffuser 2 also has a working medium channel that connects to the heater 3. The heater 3 also has a working medium channel that connects to the second regenerator 7 and then splits into two paths. The first path connects to the nozzle 4 and then to the diffuser 2. The second path connects to the expander 5. The expander 5 then has a working medium channel that connects to itself via the regenerator 6. The expander 5 also has a working medium channel that connects to the outside. The heater 3 also has a heated medium channel that connects to the outside. The expander 5 connects to the compressor 1 and transmits power.

[0045] (2) In terms of process, with Figure 1 Compared to the recirculation-pressurization gas compression heat pump shown, the difference lies in the following: the external working medium flows through the regenerator 6 to absorb heat and increase its temperature, and then supplies it to the compressor 1; the working medium enters the compressor 1 to increase its pressure and temperature, and after reaching a certain level, it flows through the second regenerator 7 to absorb heat and increase its temperature, and then enters the compressor 1 again to increase its pressure and temperature or increase its pressure and temperature while increasing its speed; the working medium discharged from the heater 3 flows through the second regenerator 7 to release heat and decrease its temperature, and then supplies it to the nozzle 4 and the expander 5 respectively; the working medium enters the expander 5 to decrease its speed and pressure to perform work, and after reaching a certain level, it flows through the regenerator 6 to release heat and decrease its temperature, and then enters the expander 5 to continue the energy conversion process, and then is discharged to the outside, forming a recirculation-pressurization gas compression heat pump.

[0046] Figure 6 The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0047] (1) Structurally, it is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. There is a working medium channel outside that connects to the compressor 1 via the regenerator 6. The compressor 1 has a working medium channel and the nozzle 4 has a first working medium channel. The two converge and connect to the diffuser 2. The diffuser 2 also has a working medium channel that connects to the heater 3. The heater 3 also has a working medium channel that connects to the nozzle 4 and then splits into two paths. The first working medium channel connects to the diffuser 2 and the second working medium channel connects to the expander 5. The expander 5 also has a working medium channel that connects to itself via the regenerator 6. After that, the expander 5 has a working medium channel that connects to the outside. The heater 3 also has a heated medium channel that connects to the outside. The expander 5 is connected to the compressor 1 and transmits power.

[0048] (2) In terms of process, with Figure 1Compared to the reflux-pressurized gas compression heat pump shown, the difference lies in the following: the external working medium flows through the regenerator 6 to absorb heat and increase its temperature, and then supplies it to the compressor 1; the working medium discharged from the heater 3 flows through the nozzle 4 to decrease its pressure and increase its speed, and then splits into two paths - the first path supplies the diffuser 2, and the second path supplies the expander 5; the working medium enters the expander 5 to decrease its speed and decrease its pressure to do work, and after reaching a certain level, it flows through the regenerator 6 to release heat and decrease its temperature, and then enters the expander 5 to continue the energy conversion process, and then is discharged to the outside, forming a reflux-pressurized gas compression heat pump.

[0049] Figure 7 The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0050] (1) Structurally, it is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, a regenerator, and a second regenerator. Externally, there is a working medium channel that connects to the compressor 1 via the regenerator 6 and the second regenerator 7. The compressor 1 has a working medium channel and the nozzle 4 has a first working medium channel. The two converge and connect to the diffuser 2. The diffuser 2 also has a working medium channel that connects to the heater 3. The heater 3 also has a working medium channel that connects to the second regenerator 7 and the nozzle 4, and then splits into two paths. The first working medium channel connects to the diffuser 2 and the second working medium channel connects to the expander 5. The expander 5 also has a working medium channel that connects to itself via the regenerator 6. After that, the expander 5 has a working medium channel that connects to the outside. The heater 3 also has a heated medium channel that connects to the outside. The expander 5 is connected to the compressor 1 and transmits power.

[0051] (2) In terms of process, with Figure 1 Compared to the reflux-pressurized gas compression heat pump shown, the difference lies in the following: the external working medium flows through the regenerator 6 and the second regenerator 7 to gradually absorb heat and increase its temperature, and then supplies it to the compressor 1; the working medium discharged from the heater 3 flows through the second regenerator 7 to release heat and decrease its temperature, flows through the nozzle 4 to decrease its pressure and increase its speed, and then splits into two paths - the first path supplies the diffuser 2, and the second path supplies the expander 5; the working medium enters the expander 5 to decrease its speed and decrease its pressure to do work, and after reaching a certain level, it flows through the regenerator 6 to release heat and decrease its temperature, enters the expander 5 to continue the energy conversion process, and then is discharged to the outside, forming a reflux-pressurized gas compression heat pump.

[0052] Figure 8 The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0053] (1) Structurally, it is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, a regenerator, and a second regenerator. There is a working medium channel outside that connects to the compressor 1 via the regenerator 6. The compressor 1 also has a working medium channel that connects to itself via the second regenerator 7. The compressor 1 has a working medium channel and the nozzle 4 has a first working medium channel. The two converge and connect to the diffuser 2. The diffuser 2 also has a working medium channel that connects to the heater 3. The heater 3 also has a working medium channel that connects to the nozzle 4 via the second regenerator 7 and then splits into two paths. The first working medium channel connects to the diffuser 2 and the second working medium channel connects to the expander 5. The expander 5 also has a working medium channel that connects to itself via the regenerator 6 and then connects to the outside. The heater 3 also has a heated medium channel that connects to the outside. The expander 5 is connected to the compressor 1 and transmits power.

[0054] (2) In terms of process, with Figure 1 Compared to the recirculation-pressurization gas compression heat pump shown, the difference lies in the following: the external working medium flows through the regenerator 6 to absorb heat and increase its temperature, and then supplies it to the compressor 1; the working medium enters the compressor 1 to increase its pressure and temperature, and after reaching a certain level, it flows through the second regenerator 7 to absorb heat and increase its temperature, and then enters the compressor 1 again to increase its pressure and temperature or to increase its pressure and temperature while accelerating its speed; the working medium discharged from the heater 3 flows through the second regenerator 7 to release heat and decrease its temperature, flows through the nozzle 4 to decrease its pressure and increase its speed, and then splits into two paths—the first path supplies the diffuser 2, and the second path supplies the expander 5; the working medium enters the expander 5 to decrease its speed and decrease its pressure to perform work, and after reaching a certain level, it flows through the regenerator 6 to release heat and decrease its temperature, enters the expander 5 to continue the energy conversion process, and then is discharged to the outside, forming a recirculation-pressurization gas compression heat pump.

[0055] Figure 9 The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0056] (1) Structurally, in Figure 1 In the reflux-pressurized gas compression heat pump shown, a new compressor A is added, and the working medium channel of the diffuser tube 2 is connected to the heater 3. The diffuser tube 2 is then connected to the heater 3 via the new compressor A.

[0057] (2) In terms of process, with Figure 1Compared to the recirculation-pressurization gas compression heat pump shown, the difference lies in the following: the external working medium flows through the compressor 1 to increase its pressure and temperature, or increases its pressure and temperature while accelerating its speed; the working medium discharged from the nozzle 4 ejects the working medium discharged from the compressor 1, and then enters the diffuser 2 to decrease its speed, increase its pressure, and increase its temperature; the working medium discharged from the diffuser 2 flows through the new compressor A to increase its pressure and temperature, and then supplies it to the heater 3; the external and the expander 5 jointly provide power to the compressor 1 and the new compressor A, or the external provides power to the new compressor A while the expander 5 provides power to the compressor 1, forming a recirculation-pressurization gas compression heat pump.

[0058] Figure 10 The reflux-pressurized gas compression heat pump shown is implemented as follows:

[0059] (1) Structurally, in Figure 9 In the reflux-pressurized gas compression heat pump shown, an ejector chamber B is added, and the working medium channels of compressor 1 and nozzle 4 are combined and connected to diffuser 2. The system is adjusted so that compressor 1 has a working medium channel connected to ejector chamber B, nozzle 4 has a working medium channel connected to ejector chamber B, and ejector chamber B has a working medium channel connected to diffuser 2.

[0060] (2) In terms of process, with Figure 9 Compared to the reflux-pressurized gas compression heat pump shown, the difference is that the high-speed working medium discharged from the nozzle 4 enters the ejector chamber B, the working medium discharged from the ejector compressor 1 enters the ejector chamber B, and the working medium discharged from the ejector chamber B enters the diffuser 2 to decelerate, pressurize, and heat up, thus forming a reflux-pressurized gas compression heat pump.

[0061] The effects achievable by this invention—the recirculation-pressurized gas compression heat pump proposed in this invention has the following effects and advantages:

[0062] (1) The pressure increase and pressure decrease processes of the working medium in the core components are shortened, or the circulation flow of the core components is reduced, thereby reducing irreversible process losses.

[0063] (2) It significantly reduces the workload of the compressor and expander, thereby reducing the overall size of the heat pump unit, lowering manufacturing costs, and improving economic efficiency.

[0064] (3) Mechanical energy drives the pressure increase, and macroscopic kinetic energy drives the autonomous pressure increase. The two work together to undertake the pressure increase process of the working medium. This is conducive to significantly improving the pressure increase ratio of the working medium, thereby achieving high-efficiency cooling and high-efficiency heating across a wide temperature range.

[0065] (4) It can significantly reduce the complexity of the working medium in the entire pressurization and depressurization process, effectively reduce the mechanical transmission share of energy, reduce systemic irreversible losses, and improve the performance index of the heat pump device.

[0066] (5) It can achieve a large pressure ratio process, which is conducive to the simultaneous supply of cold and heat and improves economic efficiency.

[0067] (6) It has enriched the types of gas compression heat pump devices, significantly reduced manufacturing costs, and greatly expanded the application scope of gas compression heat pump technology.

[0068] (7) Significantly reduces the pressure boosting process undertaken by the compressor, effectively resolves the contradiction between the pressure boosting ratio and the flow rate of the circulating working fluid, and is conducive to the construction of a high-load gas compression heat pump device.

[0069] (8) It has greatly promoted the advancement of gas compression heat pump technology, which is conducive to better utilizing mechanical energy to achieve efficient cooling, deep cooling, efficient heating and high-temperature heating, resulting in high comprehensive benefits.

Claims

1. A recirculating pressurized gas compression heat pump is mainly composed of a compressor, a diffuser, a heater, a nozzle, and an expander. There is an external working medium channel connected to the compressor (1). The compressor (1) has a working medium channel and the nozzle (4) has a working medium channel. The two channels merge and connect to the diffuser (2). The diffuser (2) also has a working medium channel connected to the heater (3). The heater (3) also has a working medium channel that is divided into two paths - the first path connects to the nozzle (4) and then to the diffuser (2), and the second path connects to the expander (5) and then to the outside. The heater (3) also has a heated medium channel connected to the outside. The expander (5) is connected to the compressor (1) and transmits power, forming a recirculating pressurized gas compression heat pump.

2. A recirculating pressurized gas compression heat pump is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. There is an external working medium channel that connects to the compressor (1) via the regenerator (6). The compressor (1) has a working medium channel and the nozzle (4) has a working medium channel. The two channels merge and connect to the diffuser (2). The diffuser (2) also has a working medium channel that connects to the heater (3). The heater (3) also has a working medium channel that is divided into two paths. The first path connects to the nozzle (4) and then to the diffuser (2). The second path connects to the expander (5). The expander (5) then has a working medium channel that connects to itself via the regenerator (6). The expander (5) also has a working medium channel that connects to the outside. The heater (3) also has a heated medium channel that connects to the outside. The expander (5) is connected to the compressor (1) and transmits power, forming a recirculating pressurized gas compression heat pump.

3. The recirculation-pressurized gas compression heat pump is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. There is an external working medium channel that connects to the compressor (1) via the regenerator (6). The compressor (1) has a working medium channel and the nozzle (4) has a working medium channel. The two channels merge and connect to the diffuser (2). The diffuser (2) also has a working medium channel that connects to the heater (3). The heater (3) also has a working medium channel that splits into two paths after passing through the regenerator (6). The first path connects to the nozzle (4) and then to the diffuser (2). The second path connects to the expander (5) and then to the outside. The heater (3) also has a heated medium channel that connects to the outside. The expander (5) connects to the compressor (1) and transmits power, forming a recirculation-pressurized gas compression heat pump.

4. The recirculation-pressurized gas compression heat pump is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. There is a working medium channel outside the compressor (1) that is connected to the compressor (1). The compressor (1) then has a working medium channel that is connected to itself via the regenerator (6). The compressor (1) has a working medium channel and the nozzle (4) has a working medium channel. The two converge and are connected to the diffuser (2). The diffuser (2) also has a working medium channel that is connected to the heater (3). The heater (3) also has a working medium channel that is connected to the regenerator (6) and then splits into two paths. The first path is connected to the nozzle (4) and then to the diffuser (2). The second path is connected to the expander (5) and then to the outside. The heater (3) also has a heated medium channel that is connected to the outside. The expander (5) is connected to the compressor (1) and transmits power, forming a recirculation-pressurized gas compression heat pump.

5. A reflux-pressurized gas compression heat pump mainly consists of a compressor, a diffuser, a heater, a nozzle, an expander, a regenerator, and a second regenerator. An external working medium channel connects to the compressor (1) via the regenerator (6). The compressor (1) then has a working medium channel connecting to itself via the second regenerator (7). The compressor (1) has a working medium channel, and the nozzle (4) has a working medium channel; both converge and connect to the diffuser (2). The diffuser (2) also has a working medium channel connecting to the heater (3). The heater (3) also has a working medium channel connected to the second regenerator (7) and then splits into two paths - the first path is connected to the nozzle (4) and then connected to the diffuser (2), the second path is connected to the expander (5) and then the expander (5) has a working medium channel connected to itself through the regenerator (6), the expander (5) also has a working medium channel connected to the outside, the heater (3) also has a heated medium channel connected to the outside, the expander (5) is connected to the compressor (1) and transmits power, forming a reflux pressurized gas compression heat pump.

6. A recirculating pressurized gas compression heat pump is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, and a regenerator. There is an external working medium channel that connects to the compressor (1) via the regenerator (6). The compressor (1) has a working medium channel and the nozzle (4) has a first working medium channel. The two converge and connect to the diffuser (2). The diffuser (2) also has a working medium channel that connects to the heater (3). The heater (3) also has a working medium channel that connects to the nozzle (4) and then splits into two paths. The first working medium channel connects to the diffuser (2) and the second working medium channel connects to the expander (5). The expander (5) also has a working medium channel that connects to itself via the regenerator (6). After that, the expander (5) has another working medium channel that connects to the outside. The heater (3) also has a heated medium channel that connects to the outside. The expander (5) connects to the compressor (1) and transmits power, forming a recirculating pressurized gas compression heat pump.

7. A reflux-pressurized gas compression heat pump is mainly composed of a compressor, a diffuser, a heater, a nozzle, an expander, a regenerator, and a second regenerator. The external working medium channel is connected to the compressor (1) through the regenerator (6) and the second regenerator (7). The compressor (1) has a working medium channel and the nozzle (4) has a first working medium channel. The two converge and are connected to the diffuser (2). The diffuser (2) also has a working medium channel connected to the heater (3). The heater (3) also has a working medium channel connected to the second regenerator (7) and the nozzle (4). After that, it splits into two paths - the first working medium channel is connected to the diffuser (2) and the second working medium channel is connected to the expander (5). The expander (5) also has a working medium channel connected to itself through the regenerator (6). After that, the expander (5) has another working medium channel connected to the outside. The heater (3) also has a heated medium channel connected to the outside. The expander (5) is connected to the compressor (1) and transmits power, forming a reflux-pressurized gas compression heat pump.

8. A reflux-pressurized gas compression heat pump mainly consists of a compressor, a diffuser, a heater, a nozzle, an expander, a regenerator, and a second regenerator. Externally, there is a working medium channel that connects to the compressor (1) via the regenerator (6). The compressor (1) also has a working medium channel that connects to itself via the second regenerator (7). The compressor (1) has a working medium channel, and the nozzle (4) has a first working medium channel; both converge and connect to the diffuser (2). The diffuser (2) also has a working medium channel that connects to the heater (3). (3) The working medium channel is connected to the nozzle (4) via the second regenerator (7) and then splits into two paths - the first working medium channel is connected to the diffuser (2) and the second working medium channel is connected to the expander (5). The expander (5) also has a working medium channel connected to itself via the regenerator (6) and then the expander (5) has a working medium channel connected to the outside. The heater (3) also has a heated medium channel connected to the outside. The expander (5) is connected to the compressor (1) and transmits power to form a reflux pressurized gas compression heat pump.

9. A reflux-pressurized gas compression heat pump is formed by adding a new compressor (A) to any of the reflux-pressurized gas compression heat pumps described in claims 1-8, and adjusting the diffuser (2) so that the working medium channel is connected to the heater (3) and the diffuser (2) also has a working medium channel connected to the heater (3) after passing through the new compressor (A), thus forming a reflux-pressurized gas compression heat pump.

10. A recirculating pressurized gas compression heat pump is a recirculating pressurized gas compression heat pump according to any one of claims 1-9, wherein an ejector chamber (B) is added, and the working medium channel of the compressor (1) and the working medium channel of the nozzle (4) are combined and connected to the diffuser (2), and the compressor (1) has a working medium channel connected to the ejector chamber (B), the nozzle (4) has a working medium channel connected to the ejector chamber (B), and the ejector chamber (B) has a working medium channel connected to the diffuser (2), thus forming a recirculating pressurized gas compression heat pump.

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