CN112344577A

CN112344577A - Single-working medium combined cycle heat pump device

Info

Publication number: CN112344577A
Application number: CN202011095166.8A
Authority: CN
Inventors: 李鸿瑞; 李华玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-06
Filing date: 2020-10-05
Publication date: 2021-02-09
Also published as: WO2021068428A1

Abstract

The invention provides a single-working medium combined cycle heat pump device, belonging to the technical field of refrigeration and heat pumps. The compressor is provided with a circulating working medium channel which is communicated with the heat supplier and then divided into two paths, wherein the first path is communicated with the heat regenerator through the expander, the second path is directly communicated with the heat regenerator, then the heat regenerator is communicated with the evaporator through a condensate liquid pipeline, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor; the heat supplier is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

Description

Single-working medium combined cycle heat pump device

The technical field is as follows:

the invention belongs to the technical field of refrigeration and heat pumps.

Background art:

cold demand, heat demand and power demand, which are common in human life and production; the conversion of mechanical energy into heat energy is an important way to realize refrigeration and efficient heating. In general, the temperature of the cooling medium changes during cooling, and the temperature of the medium to be heated also changes during heating; when mechanical energy is used for heating, the heated medium has the dual characteristics of temperature changing and high temperature at the same time, so that the problems of unreasonable performance index, low heating parameter, high compression ratio, too large working pressure and the like exist when refrigeration or heating is realized by adopting a single thermodynamic cycle theory.

Specifically, when heat release mainly depends on a condensation process, the loss of temperature difference between a working medium and a heated medium is large in a vapor compression heat pump device based on reverse Rankine cycle; meanwhile, the condensate is large in loss or high in utilization cost in the pressure reduction process; when the supercritical working condition is adopted, the compression ratio is higher, so that the manufacturing cost of the compressor is high, the safety is reduced, and the like; in both cases, the adverse effect on obtaining low temperature thermal load is difficult to eliminate. Similarly, a gas compression heat pump apparatus based on a reverse brayton cycle requires a low compression ratio, which limits the improvement of heating parameters; meanwhile, the low-temperature process is temperature-changing, so that the low-temperature link usually has large temperature difference loss during refrigeration or heating, and the performance index is not ideal.

Undeniably, the vapor compression heat pump has the advantages of absorbing low-temperature heat load in the evaporation process, and the gas compression heat pump has the advantages of variable-temperature heat release; if the advantages of the two can be kept, the sensible heat of the condensate is fully utilized, and the side effect of the pressure reduction of the condensate is eliminated, the obtained heat pump device has reasonable performance index, so that the application occasions of the heat pump device are enlarged. Based on comprehensive consideration, the invention aims to simplify, actively and efficiently use mechanical energy for refrigeration or heating from the principle of simply, actively and efficiently using mechanical energy, and provides a single-working-medium combined cycle heat pump device.

The invention content is as follows:

the invention mainly aims to provide a single-working-medium combined cycle heat pump device, and the specific invention contents are explained in sections as follows:

1. the single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator and a heat regenerator; the compressor is provided with a circulating working medium channel which is communicated with the heat supplier and then divided into two paths, wherein the first path is communicated with the heat regenerator through the expander, the second path is directly communicated with the heat regenerator, then the heat regenerator is communicated with the evaporator through a condensate liquid pipeline, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor; the heat supplier is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

2. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a second heat supplier; the compressor is divided into two paths after a circulating working medium channel is communicated with a heat supplier, wherein the first path is communicated with a heat regenerator through an expander, the second path is communicated with the heat regenerator through a second heat supplier, a condensate liquid pipeline of the heat regenerator is communicated with an evaporator through a throttle valve, the evaporator is also communicated with the heat regenerator through the circulating working medium channel, and the heat regenerator is also communicated with the compressor through the circulating working medium channel; the heat supply device and the second heat supply device are respectively communicated with the outside through a heated medium channel, the evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

3. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a spray pipe and a second heat regenerator; the compressor is provided with a circulating working medium channel which is communicated with a heat supply device and then divided into two paths, wherein the first path is communicated with the expander, the second path is communicated with the heat return device through a second heat return device and then divided into two paths, the first path is led out from the middle or the tail end of the heat return device, passes through a spray pipe and the second heat return device and then is communicated with the expander through a middle air inlet port, the second path is led out from the tail end of the heat return device and then is communicated with the evaporator through a throttle valve, and the expander is also provided with a circulating working medium channel which is; the evaporator is also provided with a circulating working medium channel which is communicated with a heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with a compressor; the heat supplier is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

4. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heater, an evaporator, a heat regenerator and a reheater; the compressor is provided with a circulating working medium channel which is communicated with the heat supply device and then divided into two paths, wherein the first path is communicated with the expansion machine, the expansion machine and the circulating working medium channel are communicated with the expansion machine through a reheater, the expansion machine and the circulating working medium channel are communicated with a heat regenerator, the second path is communicated with the heat regenerator through the reheater, then the heat regenerator is provided with a condensate liquid pipeline which is communicated with the evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with; the heat supplier is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

5. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a high-temperature heat regenerator; the compressor is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator through a heat supplier and then divided into two paths, wherein the first path is communicated with the heat regenerator through an expander, the second path is directly communicated with the heat regenerator, then a condensate liquid pipeline of the heat regenerator is communicated with an evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator; the heat supplier is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

6. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a second heat supplier and a high-temperature heat regenerator; the compressor is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator through a heat supplier and then divided into two paths, wherein the first path is communicated with the heat regenerator through an expander, the second path is communicated with the heat regenerator through a second heat supplier, then the heat regenerator is further provided with a condensate liquid pipeline which is communicated with an evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is further provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator; the heat supply device and the second heat supply device are respectively communicated with the outside through a heated medium channel, the evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

7. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a spray pipe, a second heat regenerator and a high-temperature heat regenerator; the compressor is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator through a heat supply device and then divided into two paths, wherein the first path is communicated with an expander, the second path is communicated with the heat regenerator through a second heat regenerator and then divided into two paths, the first path is led out from the middle or the tail end of the heat regenerator, is communicated with the expander through a spray pipe and the second heat regenerator and then is communicated with the expander through a middle air inlet port, the second path is led out from the tail end of the heat regenerator and then is communicated with an evaporator through a throttle valve, and the expander is also provided with a circulating working medium channel; the evaporator is also provided with a circulating working medium channel which is communicated with a heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor through a high-temperature heat regenerator; the heat supplier is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

8. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a reheater and a high-temperature heat regenerator; the compressor is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator through a heat supplier and then divided into two paths, wherein the first path of circulating working medium channel is communicated with an expander, the expander and the circulating working medium channel are communicated with the expander through a reheater and the expander, the expander and the circulating working medium channel are communicated with the heat regenerator, the second path of circulating working medium channel is communicated with the heat regenerator through the reheater, then a condensate pipeline of the heat regenerator is communicated with an evaporator through a throttle valve, the evaporator and the circulating working medium channel are communicated with the heat regenerator, and the heat regenerator and the circulating working medium channel are communicated with the compressor through the high-temperature heat regenerator; the heat supplier is also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

9. A single working medium combined cycle heat pump device is characterized in that in any one of the single working medium combined cycle heat pump devices in claims 1-8, a newly added compressor and a newly added heat supplier are added, the communication between a circulating working medium channel of the compressor and the heat supplier is adjusted to be that the compressor is provided with a circulating working medium channel which is communicated with the newly added compressor through the newly added heat supplier, the newly added compressor is provided with a circulating working medium channel which is communicated with the heat supplier, and the newly added heat supplier is also provided with a heated medium channel which is communicated with the outside, so that the single working medium combined cycle heat pump device is formed.

10. A single working medium combined cycle heat pump device is characterized in that in any one of the single working medium combined cycle heat pump devices of claims 1-8, a newly added heat supply device and a new expansion machine are added, a circulating working medium channel of a compressor is communicated with the heat supply device, the circulating working medium channel of the compressor is communicated with the new expansion machine through the newly added heat supply device, the circulating working medium channel of the new expansion machine is communicated with the heat supply device, the new expansion machine is connected with the compressor and transmits power, and a heated medium channel of the newly added heat supply device is communicated with the outside to form the single working medium combined cycle heat pump device.

11. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a second heat supplier; the compressor is provided with a first circulating working medium channel communicated with a second heat supplier, the second heat supplier is also provided with a circulating working medium channel communicated with a heat regenerator through an expander, the compressor is also provided with a second circulating working medium channel communicated with the heat supplier, the heat supplier is also provided with a circulating working medium channel communicated with the heat regenerator, then the heat regenerator is further provided with a condensate liquid pipeline communicated with the evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel communicated with the compressor; the heat supply device and the second heat supply device are respectively communicated with the outside through a heated medium channel, the evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

12. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a second heat supplier; the compressor is provided with a first circulating working medium channel communicated with the heat supplier, the heat supplier is also provided with a circulating working medium channel communicated with the heat regenerator, then the heat regenerator is further provided with a condensate liquid pipeline communicated with the evaporator through a throttle valve, the compressor is also provided with a second circulating working medium channel communicated with a second heat supplier, the second heat supplier is also provided with a circulating working medium channel communicated with the heat regenerator through an expander, the evaporator is also provided with a circulating working medium channel communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel communicated with the compressor; the heat supply device and the second heat supply device are respectively communicated with the outside through a heated medium channel, the evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

13. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a newly-added compressor and a second heat supplier; the compressor is provided with a circulating working medium channel which is communicated with the heat supplier, the heat supplier is also provided with a circulating working medium channel which is communicated with the heat regenerator, then the heat regenerator is provided with a condensate liquid pipeline which is communicated with the evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, the heat regenerator is also provided with a circulating working medium channel which is respectively communicated with the compressor and a newly added compressor, the newly added compressor is also provided with a circulating working medium channel which is communicated with a second heat supplier, and the second heat supplier is also provided with a circulating working medium channel which; the heat supply device and the second heat supply device are also provided with a heated medium channel communicated with the outside, the evaporator is also provided with a low-temperature heat medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the single-working-medium combined cycle heat pump device.

14. A single working medium combined cycle heat pump device is characterized in that in any one of the single working medium combined cycle heat pump devices of claims 11-13, a newly added heat supply device is added, the heat supply device is provided with a circulating working medium channel which is communicated with the heat regenerator through the newly added heat supply device, and the newly added heat supply device is also provided with a heated medium channel which is communicated with the outside, so that the single working medium combined cycle heat pump device is formed.

15. A single working medium combined cycle heat pump device is characterized in that a spray pipe and a second heat regenerator are added in any one of the single working medium combined cycle heat pump devices of claims 11-13, the communication between a heat supply device with a cycle working medium channel and the heat regenerator is adjusted to be that the heat supply device with the cycle working medium channel is communicated with the heat regenerator through the second heat regenerator, and the heat regenerator is additionally provided with the cycle working medium channel which is communicated with an expander through a middle air inlet port after passing through the spray pipe and the second heat regenerator, so that the single working medium combined cycle heat pump device is formed.

16. A single working medium combined cycle heat pump device is characterized in that a reheater is added in any one of the single working medium combined cycle heat pump devices in claims 11-13, the heat supply device is adjusted to be communicated with the reheater through a circulation working medium channel, the heat supply device is adjusted to be communicated with the reheater through the circulation working medium channel, the second heat supply device is adjusted to be communicated with the reheater through an expander and the reheater through the circulation working medium channel, the second heat supply device is adjusted to be communicated with the reheater through the expander and the reheater through the circulation working medium channel, the expander and the circulation working medium channel are communicated with the expander, and the expander and the reheater and the circulation working medium channel are communicated with the reheater, so that the single working medium combined cycle heat pump device.

17. The single working medium combined cycle heat pump device is characterized in that a turbine is added to the single working medium combined cycle heat pump device of any one of claims 1 to 16, a throttle valve is omitted, a condenser pipe of a regenerator is communicated with an evaporator through the throttle valve, the condenser pipe of the regenerator is adjusted to be communicated with the evaporator through the turbine, the turbine is connected with a compressor and transmits power, and the single working medium combined cycle heat pump device is formed.

18. A single working medium combined cycle heat pump device is characterized in that in any one of the single working medium combined cycle heat pump devices of claims 1-16, an evaporator and a throttle valve are eliminated, a low-temperature heat medium channel communicated with the outside of the evaporator is eliminated, the evaporator is provided with a cycle working medium channel which is communicated with a heat regenerator, the evaporator is adjusted to be provided with a steam channel communicated with the heat regenerator, the heat regenerator is provided with a condensate pipeline communicated with the outside through the throttle valve and the evaporator, and the heat regenerator is adjusted to be provided with a condensate pipeline communicated with the outside, so that the single working medium combined cycle heat pump device is formed.

Description of the drawings:

fig. 1 is a schematic diagram of a first principal thermodynamic system of a single-working-medium combined-cycle heat pump apparatus 1 according to the present invention.

Fig. 2 is a schematic thermodynamic system diagram of the 2 nd principle of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 3 is a schematic diagram of a 3 rd principle thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 4 is a diagram of a 4 th principal thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 5 is a diagram of a 5 th principal thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 6 is a 6 th principle thermodynamic system diagram of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 7 is a diagram of a 7 th principal thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 8 is a diagram of an 8 th principle thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 9 is a diagram of a 9 th principal thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 10 is a diagram of a 10 th principal thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 11 is a diagram of a principal 11 th thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 12 is a diagram of a 12 th principal thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 13 is a 13 th principal thermodynamic system diagram of a single-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 14 is a diagram of a 14 th principle thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 15 is a diagram of a 15 th principal thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 16 is a diagram of a 16 th principal thermodynamic system of a single-working-medium combined-cycle heat pump apparatus according to the present invention.

In the figure, 1-compressor, 2-expander, 3-throttle valve, 4-heater, 5-evaporator, 6-heat regenerator, 7-turbine, 8-second heater, 9-spray pipe, 10-second heat regenerator, 11-reheater, 12-high temperature heat regenerator; a-newly adding a compressor, B-newly adding a heat supply device and C-newly adding an expansion machine.

The specific implementation mode is as follows:

it is to be noted that, in the description of the structure and the flow, the repetition is not necessary; obvious flow is not described. The invention is described in detail below with reference to the figures and examples.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 1 is realized by:

(1) structurally, the heat recovery system mainly comprises a compressor, an expander, a throttle valve, a heat supply device, an evaporator and a heat regenerator; the compressor 1 is divided into two paths after a circulating working medium channel is communicated with a heater 4, wherein the first path is communicated with a heat regenerator 6 through an expander 2, the second path is directly communicated with the heat regenerator 6, then a condensate liquid pipeline of the heat regenerator 6 is communicated with an evaporator 5 through a throttle valve 3, the evaporator 5 is also communicated with the heat regenerator 6 through the circulating working medium channel, and the heat regenerator 6 is also communicated with the compressor 1 through the circulating working medium channel; the heat supplier 4 is also communicated with the outside through a heated medium channel, the evaporator 5 is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supplier 4 and releases heat, and then is divided into two paths, wherein the first path flows through the expander 2 and enters the heat regenerator 6 after being decompressed and applied with work, and the second path flows through the heat regenerator 6 and releases heat for condensation and flows through the throttle valve 3 and enters the evaporator 5 after being throttled and decompressed; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, and the outside and the expander 2 jointly provide power for the compressor 1, so that the single working medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 2 is realized by:

(1) structurally, the heat recovery system mainly comprises a compressor, an expander, a turbine, a heat supply device, an evaporator and a heat regenerator; the compressor 1 is divided into two paths after a circulating working medium channel is communicated with a heater 4, wherein the first path is communicated with a heat regenerator 6 through an expander 2, the second path is directly communicated with the heat regenerator 6, then a condensate liquid pipeline of the heat regenerator 6 is communicated with an evaporator 5 through a turbine 7, the evaporator 5 is also communicated with the heat regenerator 6 through the circulating working medium channel, and the heat regenerator 6 is also communicated with the compressor 1 through the circulating working medium channel; the heat supply device 4 is also communicated with the outside through a heated medium channel, the evaporator 5 is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 and the turbine 7 are connected with the compressor 1 and transmit power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supply device 4 and releases heat, and then is divided into two paths, wherein the first path flows through the expansion machine 2 to reduce pressure and do work and then enters the heat regenerator 6, and the second path flows through the heat regenerator 6 to release heat and condense and flows through the turbine 7 to reduce pressure and do work and then enters the evaporator 5; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, and the exterior, the expander 2 and the turbine 7 jointly provide power for the compressor 1, so that the single working medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 3 is realized by:

(1) structurally, the heat pump system mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a second heat supplier; the compressor 1 is divided into two paths after a circulating working medium channel is communicated with the heat supplier 4, wherein the first path is communicated with the heat regenerator 6 through the expander 2, the second path is communicated with the heat regenerator 6 through the second heat supplier 8, then the heat regenerator 6 is communicated with the evaporator 5 through a condensed liquid pipeline, the evaporator 5 is also communicated with the heat regenerator 6 through the circulating working medium channel, and the heat regenerator 6 is also communicated with the compressor 1 through the circulating working medium channel; the heat supply device 4 and the second heat supply device 8 are also respectively communicated with the outside through a heated medium channel, the evaporator 5 is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supply device 4 and releases heat, and then is divided into two paths, namely a first path flows through the expansion machine 2 to reduce the pressure and do work and then enters the heat regenerator 6, a second path flows through the second heat supply device 8 and the heat regenerator 6 to gradually release heat and condense, flows through the throttle valve 3 to reduce the pressure in a throttling mode and then enters the evaporator 5; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4 and the second heat supplier 8, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, the exterior and the expander 2 jointly provide power for the compressor 1, and the single working medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 4 is realized by:

(1) structurally, the heat recovery system mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a spray pipe and a second heat regenerator; the compressor 1 is provided with a circulating working medium channel which is communicated with a heat supplier 4 and then divided into two paths, wherein the first path is communicated with the expander 2, the second path is communicated with the heat regenerator 6 through a second heat regenerator 10 and then divided into two paths, the first path is led out from the middle or the tail end of the heat regenerator 6, passes through a spray pipe 9 and the second heat regenerator 10 and then is communicated with the expander 2 through a middle air inlet port, the second path is led out from the tail end of the heat regenerator 6 and then is communicated with an evaporator 5 through a throttle valve 3, and the expander 2 is also provided with a circulating working medium channel which is communicated with the heat regenerator 6; the evaporator 5 is also provided with a circulating working medium channel which is communicated with the heat regenerator 6, and the heat regenerator 6 is also provided with a circulating working medium channel which is communicated with the compressor 1; the heat supplier 4 is also communicated with the outside through a heated medium channel, the evaporator 5 is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supply device 4 and releases heat, and then is divided into two paths, wherein the first path flows through the expansion machine 2 to reduce the pressure and do work and then enters the heat regenerator 6, the second path flows through the second heat regenerator 10 to release heat, then enters the heat regenerator 6 to release heat and is partially or completely condensed and then is divided into two paths, the first path flows through the spray pipe 9 to reduce the pressure and increase the speed, flows through the second heat regenerator 10 to absorb heat, enters the expansion machine 2 to reduce the pressure and do work through the middle air inlet port, then enters the heat regenerator 6, and the second path of condensate or the condensate after the second path of continuous heat release enters the evaporator 5 after; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, and the outside and the expander 2 jointly provide power for the compressor 1, so that the single working medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 5 is realized by:

(1) structurally, the heat recovery system mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a reheater; the compressor 1 is divided into two paths after a circulating working medium channel is communicated with a heat supplier 4, wherein the first path is communicated with an expander 2, the expander 2 and a circulating working medium channel are communicated with the expander 2 through a reheater 11, the expander 2 and a circulating working medium channel are communicated with a heat regenerator 6, the second path is communicated with the heat regenerator 6 through the reheater 11, then a condensate pipeline of the heat regenerator 6 is communicated with an evaporator 5 through a throttle valve 3, the evaporator 5 is also communicated with the heat regenerator 6 through the circulating working medium channel, and the heat regenerator 6 and the circulating working medium channel are communicated with the compressor 1; the heat supplier 4 is also communicated with the outside through a heated medium channel, the evaporator 5 is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supply device 4 and releases heat, and then is divided into two paths, wherein the first path enters the expansion machine 2 to reduce the pressure and do work to a certain degree, then flows through the reheater 11 to absorb heat, enters the expansion machine 2 to continue to reduce the pressure and do work, and then enters the heat regenerator 6, and the second path flows through the reheater 11 to release heat, flows through the heat regenerator 6 to release heat and condense, flows through the throttle valve 3 to throttle and reduce the pressure, and then enters the evaporator 5; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, and the outside and the expander 2 jointly provide power for the compressor 1, so that the single working medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 6 is realized by:

(1) structurally, the heat recovery system mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a high-temperature heat regenerator; the compressor 1 is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator 12 through a heat supplier 4 and then divided into two paths, wherein the first path is communicated with the heat regenerator 6 through an expander 2, the second path is directly communicated with the heat regenerator 6, then the heat regenerator 6 is further provided with a condensate liquid pipeline which is communicated with an evaporator 5 through a throttle valve 3, the evaporator 5 is also provided with a circulating working medium channel which is communicated with the heat regenerator 6, and the heat regenerator 6 is also provided with a circulating working medium channel which is communicated with the compressor 1 through the high-temperature heat regenerator 12; the heat supplier 4 is also communicated with the outside through a heated medium channel, the evaporator 5 is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise the temperature, flows through the high-temperature heat regenerator 12 to absorb heat, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 passes through the heat supply device 4 and the high-temperature heat regenerator 12 to gradually release heat, and then is divided into two paths, namely a first path flows through the expansion machine 2 to reduce pressure and do work and then enters the heat regenerator 6, and a second path flows through the heat regenerator 6 to release heat and condense and flows through the throttle valve 3 to reduce pressure and then enters the evaporator 5; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, and the outside and the expander 2 jointly provide power for the compressor 1, so that the single working medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 7 is realized by:

(1) structurally, in the single-working medium combined cycle heat pump device shown in fig. 1, a newly added compressor and a newly added heat supplier are added, the compressor 1 is communicated with the heat supplier 4 through a circulating working medium channel, the compressor 1 is communicated with the newly added compressor A through a newly added heat supplier B, the newly added compressor A is communicated with the heat supplier 4 through a circulating working medium channel, and the newly added heat supplier B is communicated with the outside through a heated medium channel.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the newly-added heat supply device B and releases heat, flows through the newly-added compressor A and increases the pressure and the temperature, flows through the heat supply device 4 and releases heat, and then is divided into two paths, wherein the first path flows through the expansion machine 2 and enters the heat regenerator 6 after reducing the pressure and doing work, and the second path flows through the heat regenerator 6 and releases heat and condenses, flows through the throttle valve 3 and enters the evaporator 5 after throttling and reducing the pressure; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4 and the newly-added heat supplier B, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, the exterior and the expander 2 jointly provide power for the compressor 1 and the newly-added compressor A, and a single-working-medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 8 is realized by:

(1) structurally, in the single-working medium combined cycle heat pump device shown in fig. 1, a newly added heat supply device and a newly added expansion machine are added, a circulating working medium channel of a compressor 1 is communicated with a heat supply device 4 and adjusted to be communicated with the heat supply device 4, a circulating working medium channel of the compressor 1 is communicated with a newly added expansion machine C through a newly added heat supply device B, the newly added expansion machine C is communicated with the heat supply device 4 through a circulating working medium channel, the newly added expansion machine C is connected with the compressor 1 and transmits power, and the newly added heat supply device B is communicated with the outside through a heated medium channel.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the newly-added heat supply device B and releases heat, flows through the newly-added expansion machine C and performs pressure reduction work, flows through the heat supply device 4 and releases heat, and then is divided into two paths, wherein the first path flows through the expansion machine 2 and enters the heat regenerator 6 after performing pressure reduction work, and the second path flows through the heat regenerator 6 for heat release condensation and enters the evaporator 5 after throttling and pressure reduction through the throttle valve 3; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4 and the newly-added heat supplier B, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, and the outside, the expander 2 and the newly-added expander C jointly provide power for the compressor 1, so that the single-working-medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 9 is realized by:

(1) structurally, in the single-working medium combined cycle heat pump device shown in fig. 6, a newly added compressor and a newly added heat supplier are added, the communication between the circulating working medium channel of the compressor 1 and the heat supplier 4 is adjusted to be that the compressor 1 is communicated with the newly added compressor A through the newly added heat supplier B, the circulating working medium channel of the newly added compressor A is communicated with the heat supplier 4, and the heated medium channel of the newly added heat supplier B is communicated with the outside.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise the temperature, flows through the high-temperature heat regenerator 12 to absorb heat, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the newly-added heat supply device B and releases heat, flows through the newly-added compressor A and increases the pressure and the temperature, flows through the heat supply device 4 and the high-temperature heat regenerator 12 and gradually releases heat, and then is divided into two paths, wherein the first path flows through the expander 2 and enters the heat regenerator 6 after reducing the pressure and doing work, and the second path flows through the heat regenerator 6 and releases heat and condenses, flows through the throttle valve 3 and enters the evaporator 5 after throttling and reducing the pressure; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4 and the newly-added heat supplier B, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, the exterior and the expander 2 jointly provide power for the compressor 1 and the newly-added compressor A, and a single-working-medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 10 is realized by:

(1) structurally, the heat pump system mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a second heat supplier; the compressor 1 is provided with a first circulating working medium channel communicated with a second heat supplier 8, the second heat supplier 8 is also provided with a circulating working medium channel communicated with a heat regenerator 6 through an expander 2, the compressor 1 is also provided with a second circulating working medium channel communicated with the heat supplier 4, the heat regenerator 6 is communicated with the heat regenerator 6 after the circulating working medium channel of the heat supplier 4 is also communicated with the heat regenerator 6, a condensate pipeline of the heat regenerator 6 is communicated with an evaporator 5 through a throttle valve 3, the evaporator 5 is also provided with a circulating working medium channel communicated with the heat regenerator 6, and the heat regenerator 6 is also provided with a circulating working medium channel communicated with the compressor 1; the heat supply device 4 and the second heat supply device 8 are also respectively communicated with the outside through a heated medium channel, the evaporator 5 is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, enters the compressor 1 to be boosted and raised temperature to a certain degree and then is divided into two paths, wherein the first path flows through the second heat supplier 8 to release heat, flows through the expander 2 to reduce the pressure and do work and enters the heat regenerator 6, and the second path continues to be boosted and raised temperature, flows through the heat supplier 4 to release heat, flows through the heat regenerator 6 to release heat and condense, flows through the throttle valve 3 to throttle and lower the pressure and enters the evaporator 5; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4 and the second heat supplier 8, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, the exterior and the expander 2 jointly provide power for the compressor 1, and the single working medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 11 is realized by:

(1) structurally, the heat pump system mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a second heat supplier; the compressor 1 is provided with a first circulating working medium channel communicated with the heat supplier 4, the heat supplier 4 is also provided with a circulating working medium channel communicated with the heat regenerator 6, then the heat regenerator 6 is further provided with a condensate liquid pipeline communicated with the evaporator 5 through the throttle valve 3, the compressor 1 is also provided with a second circulating working medium channel communicated with a second heat supplier 8, the second heat supplier 8 is also provided with a circulating working medium channel communicated with the heat regenerator 6 through the expander 2, the evaporator 5 is also provided with a circulating working medium channel communicated with the heat regenerator 6, and the heat regenerator 6 is also provided with a circulating working medium channel communicated with the compressor 1; the heat supply device 4 and the second heat supply device 8 are also respectively communicated with the outside through a heated medium channel, the evaporator 5 is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, enters the compressor 1 to be boosted and raised in temperature to a certain degree and then is divided into two paths, wherein the first path flows through the heat supplier 4 to release heat, flows through the heat regenerator 6 to release heat and condense, flows through the throttle valve 3 to throttle and reduce pressure and enters the evaporator 5, and the second path continues to be boosted and raised in temperature, flows through the second heat supplier 8 to release heat, flows through the expander 2 to reduce pressure and do work and enters the heat regenerator 6; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4 and the second heat supplier 8, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, the exterior and the expander 2 jointly provide power for the compressor 1, and the single working medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 12 is realized by:

(1) structurally, the heat pump system mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a newly-added compressor and a second heat supplier; the compressor 1 is provided with a circulating working medium channel which is communicated with the heat supplier 4, the heat supplier 4 is also provided with a circulating working medium channel which is communicated with the heat regenerator 6, then the heat regenerator 6 is provided with a condensate liquid pipeline which is communicated with the evaporator 5 through a throttle valve 3, the evaporator 5 is also provided with a circulating working medium channel which is communicated with the heat regenerator 6, the heat regenerator 6 is also provided with a circulating working medium channel which is respectively communicated with the compressor 1 and a newly-added compressor A, the newly-added compressor A is also provided with a circulating working medium channel which is communicated with a second heat supplier 8, and the second heat supplier 8 is also provided with a circulating working medium channel which is communicated with the; the heat supply device 4 and the second heat supply device 8 are also communicated with the outside through a heated medium channel, the evaporator 5 is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 5 enters the heat regenerator 6 to absorb heat and raise temperature, and then is divided into two paths, namely a first path flows through the newly-added compressor A to increase the pressure and raise the temperature, flows through the second heat supplier 8 to release heat, flows through the expander 2 to reduce the pressure and do work and enters the heat regenerator 6, a second path flows through the compressor 1 to increase the pressure and raise the temperature, flows through the heat supplier 4 to release heat, flows through the heat regenerator 6 to release heat and condense, flows through the throttle valve 3 to throttle and reduce the; the circulating working medium entering the evaporator 5 absorbs heat and is vaporized, and then enters the heat regenerator 6; the heated medium obtains high-temperature heat load through the heat supplier 4 and the second heat supplier 8, the low-temperature heat load is provided by the low-temperature heat medium through the evaporator 5, the exterior and the expander 2 jointly provide power for the compressor 1 and the newly-added compressor A, and a single-working-medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 13 is realized by:

(1) structurally, in the single-working medium combined cycle heat pump device shown in fig. 10, a newly added heat supply device is added, the heat supply device 4 is communicated with the heat regenerator 6 through a circulating working medium channel, the heat supply device 4 is adjusted to be communicated with the heat regenerator 6 through a newly added heat supply device B, and the newly added heat supply device B is also communicated with the outside through a heated medium channel.

(2) Compared with the single-working medium combined cycle heat pump device shown in fig. 10, the difference in the flow is that: the circulating working medium discharged by the heat supplier 4 is gradually released and condensed by flowing through the newly added heat supplier B and the heat regenerator 6, throttled and reduced in pressure by flowing through the throttle valve 3, and then enters the evaporator 5 to form the single-working-medium combined cycle heat pump device.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 14 is realized by:

(1) structurally, in the single-working medium combined cycle heat pump device shown in fig. 10, a spray pipe and a second heat regenerator are added, the heat supply device 4 is communicated with the heat regenerator 6 through a circulation working medium channel, the heat supply device 4 is communicated with the heat regenerator 6 through the second heat regenerator 10 through the circulation working medium channel, and the heat regenerator 6 is additionally provided with the circulation working medium channel which is communicated with the expander 2 through a middle air inlet port after passing through the spray pipe 9 and the second heat regenerator 10.

(2) Compared with the single-working medium combined cycle heat pump device shown in fig. 10, the difference in the flow is that: the circulating working medium discharged by the heat supplier 4 flows through the second heat regenerator 10 and releases heat, then enters the heat regenerator 6 to release heat, and is partially or completely condensed and then is divided into two paths, wherein the first path flows through the spray pipe 9 to reduce the pressure and increase the speed, flows through the second heat regenerator 10 to absorb heat, enters the expander 2 through the middle air inlet port to reduce the pressure and do work, and the second path of condensate or the condensate after the second path continues to release heat enters the evaporator 5 after the throttling and the pressure reduction of the throttle valve 3, so that the simplex-working-medium combined cycle heat pump device is formed.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 15 is realized by:

(1) structurally, in the single-working medium combined cycle heat pump apparatus shown in fig. 10, a reheater is added, the heat supply device 4 is adjusted to have a circulation working medium channel to communicate with the reheater 6, the heat supply device 4 has a circulation working medium channel to communicate with the reheater 6 through the reheater 11, the second heat supply device 8 has a circulation working medium channel to communicate with the reheater 6 through the expander 2, the second heat supply device 8 has a circulation working medium channel to adjust to have a circulation working medium channel to communicate with the expander 2, the expander 2 also has a circulation working medium channel to communicate with the expander 2 through the reheater 11, and the expander 2 also has a circulation working medium channel to communicate with the reheater 6.

(2) Compared with the single-working medium combined cycle heat pump device shown in fig. 10, the difference in the flow is that: the circulating working medium discharged by the heater 4 passes through the reheater 11 to release heat, passes through the reheater 6 to release heat and condense, passes through the throttle valve 3 to be throttled and decompressed, and then enters the evaporator 5; the circulating working medium discharged by the second heat supplier 8 enters the expander 2 to reduce the pressure and do work to a certain degree, then flows through the reheater 11 to absorb heat, flows through the expander 2 to continue to reduce the pressure and do work, and then enters the heat regenerator 6 to form the single-working-medium combined cycle heat pump device.

The single-working-medium combined-cycle heat pump apparatus shown in fig. 16 is realized by:

(1) structurally, in the single-working medium combined cycle heat pump device shown in fig. 1, an evaporator and a throttle valve are eliminated, a low-temperature heat medium channel communicated with the outside of the evaporator 5 is eliminated, the evaporator 5 is communicated with the heat regenerator 6 through a circulating working medium channel, the outside of the evaporator is adjusted to be communicated with the heat regenerator 6 through a steam channel, and the heat regenerator 6 is communicated with the evaporator 5 through the throttle valve 3 and adjusted to be communicated with the outside of the heat regenerator 6 through a condensate pipeline.

(2) In the flow, the circulating working medium in an external steam state enters the heat regenerator 6, the circulating working medium discharged by the expander 2 enters the heat regenerator 6, and the two paths of circulating working media absorb heat and raise temperature and then enter the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supply device 4 and releases heat, and then is divided into two paths, wherein the first path flows through the expansion machine 2 and enters the heat regenerator 6 after being decompressed and applied with work, and the second path flows through the heat regenerator 6 and is discharged outwards after releasing heat and condensing; the heated medium obtains high-temperature heat load through the heat supplier 4, external steam provides low-temperature heat load through the inlet and outlet flow, and the outside and the expander 2 jointly provide power for the compressor 1, so that the single working medium combined cycle heat pump device is formed.

The effect that the technology of the invention can realize-the single-working medium combined cycle heat pump device provided by the invention has the following effects and advantages:

(1) basic technologies for mechanical energy refrigeration and heating utilization (energy difference utilization) are provided.

(2) The heat supply load in the phase change heat release process is eliminated or greatly reduced, the heat supply load of a high-temperature heat supply section is relatively increased, and the performance index of the device is improved.

(3) The adverse effect of condensate sensible heat on obtaining low-temperature heat load is eliminated, and the performance index of the device is improved.

(4) Greatly improving the utilization degree of the sensible heat of the condensate, being beneficial to reducing the compression ratio and improving the performance index of the device.

(5) The working parameter range is greatly expanded, and high-efficiency heat supply and high-efficiency high-temperature heat supply are realized.

(6) The working pressure is reduced, and the safety of the device is improved.

(7) The single working medium is beneficial to production and storage; reduce the running cost and improve the flexibility of circulation regulation

(8) In the high temperature area or the variable temperature area, the temperature difference heat transfer loss of the heat release link is reduced, and the performance index is improved.

(9) And a low-pressure operation mode is adopted in a high-temperature heat supply area, so that the contradiction between the performance index, the circulating medium parameter and the pressure and temperature resistance of the pipe in the traditional refrigeration and heat pump device is relieved or solved.

(10) The application range is wide, the energy supply requirement can be well met, and the working medium and the working parameters are flexibly matched.

(11) The thermodynamic cycle range of the mechanical energy for efficiently utilizing cold/heat is expanded, and the efficient utilization of the mechanical energy in the fields of refrigeration, high-temperature heat supply and variable-temperature heat supply is favorably realized.

Claims

1. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator and a heat regenerator; the compressor (1) is provided with a circulating working medium channel which is communicated with the heat supplier (4) and then divided into two paths, wherein the first path is communicated with the heat regenerator (6) through the expander (2), the second path is directly communicated with the heat regenerator (6), then the heat regenerator (6) is provided with a condensate liquid pipeline which is communicated with the evaporator (5) through the throttle valve (3), the evaporator (5) is also provided with the circulating working medium channel which is communicated with the heat regenerator (6), and the heat regenerator (6) is also provided with the circulating working medium channel which is communicated with the compressor (1); the heat supply device (4) is also provided with a heated medium channel communicated with the outside, the evaporator (5) is also provided with a low-temperature heat medium channel communicated with the outside, and the expander (2) is connected with the compressor (1) and transmits power to form a single-working-medium combined cycle heat pump device.

2. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a second heat supplier; the compressor (1) is provided with a circulating working medium channel which is communicated with the heat supplier (4) and then divided into two paths, wherein the first path is communicated with the heat regenerator (6) through the expander (2), the second path is communicated with the heat regenerator (6) through the second heat supplier (8), then the heat regenerator (6) is provided with a condensate liquid pipeline which is communicated with the evaporator (5) through the throttle valve (3), the evaporator (5) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6), and the heat regenerator (6) is also provided with a circulating working medium channel which is communicated with the compressor (1); the heat supply device (4) and the second heat supply device (8) are also respectively communicated with the outside through a heated medium channel, the evaporator (5) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the single-working-medium combined cycle heat pump device.

3. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a spray pipe and a second heat regenerator; the compressor (1) is provided with a circulating working medium channel which is communicated with the heat supplier (4) and then divided into two paths, wherein the first path is communicated with the expander (2), the second path is communicated with the heat regenerator (6) through the second heat regenerator (10) and then divided into two paths, the first path is led out from the middle or the tail end of the heat regenerator (6), is communicated with the expander (2) through a middle air inlet port after passing through a spray pipe (9) and the second heat regenerator (10), the second path is led out from the tail end of the heat regenerator (6), is communicated with the evaporator (5) through a throttle valve (3), and the expander (2) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6); the evaporator (5) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6), and the heat regenerator (6) is also provided with a circulating working medium channel which is communicated with the compressor (1); the heat supply device (4) is also provided with a heated medium channel communicated with the outside, the evaporator (5) is also provided with a low-temperature heat medium channel communicated with the outside, and the expander (2) is connected with the compressor (1) and transmits power to form a single-working-medium combined cycle heat pump device.

4. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heater, an evaporator, a heat regenerator and a reheater; the compressor (1) is provided with a circulating working medium channel which is communicated with the heat supplier (4) and then divided into two paths, wherein the first path is communicated with the expander (2), the expander (2) is also provided with a circulating working medium channel which is communicated with the expander (2) through a reheater (11), the expander (2) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6), the second path is communicated with the heat regenerator (6) through the reheater (11), then the heat regenerator (6) is provided with a condensate liquid pipeline which is communicated with the evaporator (5) through a throttle valve (3), the evaporator (5) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6), and the heat regenerator (6) is also provided with a circulating working medium channel which is communicated with the compressor (; the heat supply device (4) is also provided with a heated medium channel communicated with the outside, the evaporator (5) is also provided with a low-temperature heat medium channel communicated with the outside, and the expander (2) is connected with the compressor (1) and transmits power to form a single-working-medium combined cycle heat pump device.

5. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a high-temperature heat regenerator; the compressor (1) is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator (12) through a heat supplier (4) and then divided into two paths, wherein the first path is communicated with the heat regenerator (6) through an expander (2), the second path is directly communicated with the heat regenerator (6), then the heat regenerator (6) is provided with a condensate pipeline which is communicated with an evaporator (5) through a throttle valve (3), the evaporator (5) is also provided with the circulating working medium channel which is communicated with the heat regenerator (6), and the heat regenerator (6) is also provided with the circulating working medium channel which is communicated with the compressor (1) through the high-temperature heat regenerator (12); the heat supply device (4) is also provided with a heated medium channel communicated with the outside, the evaporator (5) is also provided with a low-temperature heat medium channel communicated with the outside, and the expander (2) is connected with the compressor (1) and transmits power to form a single-working-medium combined cycle heat pump device.

6. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a second heat supplier and a high-temperature heat regenerator; the compressor (1) is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator (12) through a heat supplier (4) and then divided into two paths, wherein the first path is communicated with the heat regenerator (6) through an expander (2), the second path is communicated with the heat regenerator (6) through a second heat supplier (8), then a condensate liquid pipeline of the heat regenerator (6) is communicated with an evaporator (5) through a throttle valve (3), the evaporator (5) is also provided with the circulating working medium channel which is communicated with the heat regenerator (6), and the heat regenerator (6) is also provided with the circulating working medium channel which is communicated with the compressor (1) through the high-temperature heat regenerator (12); the heat supply device (4) and the second heat supply device (8) are also respectively communicated with the outside through a heated medium channel, the evaporator (5) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the single-working-medium combined cycle heat pump device.

7. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a spray pipe, a second heat regenerator and a high-temperature heat regenerator; the compressor (1) is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator (12) through a heat supplier (4) and then divided into two paths, wherein the first path is communicated with the expander (2), the second path is communicated with the heat regenerator (6) through a second heat regenerator (10) and then divided into two paths, the first path is led out from the middle or the tail end of the heat regenerator (6), is communicated with the expander (2) through a middle air inlet port after passing through a spray pipe (9) and the second heat regenerator (10), the second path is led out from the tail end of the heat regenerator (6) and then is communicated with the evaporator (5) through a throttle valve (3), and the expander (2) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6); the evaporator (5) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6), and the heat regenerator (6) is also provided with a circulating working medium channel which is communicated with the compressor (1) through the high-temperature heat regenerator (12); the heat supply device (4) is also provided with a heated medium channel communicated with the outside, the evaporator (5) is also provided with a low-temperature heat medium channel communicated with the outside, and the expander (2) is connected with the compressor (1) and transmits power to form a single-working-medium combined cycle heat pump device.

8. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a reheater and a high-temperature heat regenerator; the compressor (1) is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator (12) through a heat supplier (4) and then divided into two paths, namely a first path of circulating working medium channel is communicated with an expander (2), the expander (2) is also provided with a circulating working medium channel which is communicated with the expander (2) through a reheater (11), the expander (2) is also provided with a circulating working medium channel which is communicated with a heat regenerator (6), a second path of circulating working medium channel is communicated with the heat regenerator (6) through the reheater (11), then the heat regenerator (6) is provided with a condensate pipeline which is communicated with an evaporator (5) through a throttle valve (3), the evaporator (5) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6), and the heat regenerator (6) is also provided with a circulating working medium channel which is communicated with the compressor (; the heat supply device (4) is also provided with a heated medium channel communicated with the outside, the evaporator (5) is also provided with a low-temperature heat medium channel communicated with the outside, and the expander (2) is connected with the compressor (1) and transmits power to form a single-working-medium combined cycle heat pump device.

9. A single working medium combined cycle heat pump device is characterized in that any one of the single working medium combined cycle heat pump devices in claims 1-8 is additionally provided with a newly-added compressor and a newly-added heat supplier, the communication between the compressor (1) and the heat supplier (4) is adjusted to be that the compressor (1) is provided with a circulating working medium channel which is communicated with the newly-added compressor (A) through the newly-added heat supplier (B), the newly-added compressor (A) is provided with a circulating working medium channel which is communicated with the heat supplier (4), and the newly-added heat supplier (B) is also provided with a heated medium channel which is communicated with the outside, so that the single working medium combined cycle heat pump device is formed.

10. A single working medium combined cycle heat pump device is characterized in that in any one of the single working medium combined cycle heat pump devices in claims 1-8, a newly added heat supply device and a new expansion machine are added, a circulating working medium channel of a compressor (1) is communicated with a heat supply device (4) and adjusted to be communicated with a circulating working medium channel of the compressor (1) through the newly added heat supply device (B) and a new expansion machine (C), the new expansion machine (C) is communicated with the heat supply device (4) through a circulating working medium channel, the new expansion machine (C) is connected with the compressor (1) and transmits power, and a heated medium channel of the newly added heat supply device (B) is communicated with the outside to form the single working medium combined cycle heat pump device.

11. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a second heat supplier; the compressor (1) is provided with a first circulating working medium channel communicated with a second heat supplier (8), the second heat supplier (8) is also provided with a circulating working medium channel communicated with a heat regenerator (6) through an expander (2), the compressor (1) is also provided with a second circulating working medium channel communicated with the heat supplier (4), the heat regenerator (6) is further provided with a condensate pipeline communicated with an evaporator (5) through a throttle valve (3) after the heat supplier (4) is also provided with the circulating working medium channel communicated with the heat regenerator (6), the evaporator (5) is also provided with a circulating working medium channel communicated with the heat regenerator (6), and the heat regenerator (6) is further provided with a circulating working medium channel communicated with the compressor (1); the heat supply device (4) and the second heat supply device (8) are also respectively communicated with the outside through a heated medium channel, the evaporator (5) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the single-working-medium combined cycle heat pump device.

12. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator and a second heat supplier; the compressor (1) is provided with a first circulating working medium channel communicated with the heat supplier (4), the heat supplier (4) is further provided with a circulating working medium channel communicated with the heat regenerator (6), then the heat regenerator (6) is further provided with a condensate liquid pipeline communicated with the evaporator (5) through the throttle valve (3), the compressor (1) is further provided with a second circulating working medium channel communicated with a second heat supplier (8), the second heat supplier (8) is further provided with a circulating working medium channel communicated with the heat regenerator (6) through the expander (2), the evaporator (5) is further provided with a circulating working medium channel communicated with the heat regenerator (6), and the heat regenerator (6) is further provided with a circulating working medium channel communicated with the compressor (1); the heat supply device (4) and the second heat supply device (8) are also respectively communicated with the outside through a heated medium channel, the evaporator (5) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the single-working-medium combined cycle heat pump device.

13. The single-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a throttle valve, a heat supplier, an evaporator, a heat regenerator, a newly-added compressor and a second heat supplier; the compressor (1) is provided with a circulating working medium channel which is communicated with the heat supplier (4), the heat supplier (4) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6), then the heat regenerator (6) is communicated with the evaporator (5) through a condensate liquid pipeline by a throttle valve (3), the evaporator (5) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6), the heat regenerator (6) is also provided with a circulating working medium channel which is respectively communicated with the compressor (1) and a newly added compressor (A), the newly added compressor (A) is also provided with a circulating working medium channel which is communicated with a second heat supplier (8), and the second heat supplier (8) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6) through an expander (2); the heat supply device (4) and the second heat supply device (8) are also provided with heated medium channels which are communicated with the outside, the evaporator (5) is also provided with a low-temperature heat medium channel which is communicated with the outside, and the expander (2) is connected with the compressor (1) and transmits power to form the single-working-medium combined cycle heat pump device.

14. A single working medium combined cycle heat pump device, which is characterized in that in any one of the single working medium combined cycle heat pump devices of the claims 11 to 13, a newly added heat supplier is added, the heat supplier (4) is provided with a circulating working medium channel to be communicated with the heat regenerator (6) and adjusted to be that the heat supplier (4) is provided with a circulating working medium channel to be communicated with the heat regenerator (6) through the newly added heat supplier (B), and the newly added heat supplier (B) is also provided with a heated medium channel to be communicated with the outside, thus forming the single working medium combined cycle heat pump device.

15. A single-working medium combined cycle heat pump device is characterized in that a spray pipe and a second heat regenerator are added in any one of the single-working medium combined cycle heat pump devices of claims 11-13, a heat supply device (4) is communicated with the heat regenerator (6) through a circulating working medium channel, the heat supply device (4) is adjusted to be communicated with the heat regenerator (6) through the second heat regenerator (10) through the circulating working medium channel, the heat regenerator (6) is additionally provided with the circulating working medium channel, the circulating working medium channel is communicated with an expander (2) through a middle air inlet port after passing through the spray pipe (9) and the second heat regenerator (10), and the single-working medium combined cycle heat pump device is formed.

16. A single-working medium combined cycle heat pump device is characterized in that a reheater is added in any one of the single-working medium combined cycle heat pump devices in claims 11 to 13, a heat supply device (4) is communicated with a reheater (6) through a circulation working medium channel, the heat supply device (4) is provided with a circulation working medium channel which is communicated with the reheater (11) and the reheater (6), a second heat supply device (8) is provided with a circulation working medium channel which is communicated with the reheater (6) through an expander (2) through an adjustment, the second heat supply device (8) is provided with a circulation working medium channel which is communicated with the expander (2), the expander (2) is also provided with a circulation working medium channel which is communicated with the expander (2) through the reheater (11) and the expander (2) is also provided with a circulation working medium channel which is communicated with the reheater (6), and the single-working medium combined cycle heat pump device.

17. The single working medium combined cycle heat pump device is characterized in that a turbine is added in the single working medium combined cycle heat pump device of any one of claims 1 to 16, a throttle valve is omitted, a condensate pipeline of a heat regenerator (6) is communicated with an evaporator (5) through the throttle valve (3) and is adjusted to be communicated with the evaporator (5) through a turbine (7) and a condensate pipeline of the heat regenerator (6), and the turbine (7) is connected with a compressor (1) and transmits power to form the single working medium combined cycle heat pump device.

18. A single-working medium combined cycle heat pump device is characterized in that in any one of the single-working medium combined cycle heat pump devices of claims 1 to 16, an evaporator and a throttle valve are eliminated, a low-temperature heat medium channel communicated with the outside of the evaporator (5) is eliminated, the evaporator (5) is provided with a circulating working medium channel which is communicated with a heat regenerator (6) and is adjusted to be provided with a steam channel which is communicated with the heat regenerator (6) at the outside, a condensing liquid pipeline arranged on the heat regenerator (6) is communicated with the evaporator (5) through the throttle valve (3) and is adjusted to be provided with a condensing liquid pipeline communicated with the outside of the heat regenerator (6), and the single-working medium combined cycle heat pump device is formed.