CN220689402U - Throttle control device of centrifugal high-temperature heat pump unit - Google Patents
Throttle control device of centrifugal high-temperature heat pump unit Download PDFInfo
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- CN220689402U CN220689402U CN202320927561.0U CN202320927561U CN220689402U CN 220689402 U CN220689402 U CN 220689402U CN 202320927561 U CN202320927561 U CN 202320927561U CN 220689402 U CN220689402 U CN 220689402U
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- 239000003507 refrigerant Substances 0.000 claims abstract description 71
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 230000001502 supplementing effect Effects 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims abstract description 9
- 230000008020 evaporation Effects 0.000 claims abstract description 9
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 6
- 239000007789 gas Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The utility model discloses a throttling control device of a centrifugal high-temperature heat pump unit, which comprises a first-stage multiple orifice plate, a first-stage refrigerant pipeline, a gas-liquid separation device, a second-stage refrigerant pipeline, a second-stage automatic regulating valve, a second-stage multiple orifice plate, an evaporator, a first-stage air suction pipeline, a first-stage compressor, a first-stage air discharge pipeline, a second-stage air suction pipeline, a condenser, an air supplementing pipeline, refrigerant flash evaporation gas and liquid saturated refrigerants, wherein the first-stage refrigerant pipeline is provided with the first-stage automatic regulating valve, the first-stage refrigerant pipeline is internally provided with the first-stage multiple orifice plate, the second-stage refrigerant pipeline is provided with the second-stage automatic regulating valve, and the second-stage refrigerant pipeline is internally provided with the second-stage multiple orifice plate.
Description
Technical Field
The utility model relates to the technical field of throttle control devices of air conditioner heat pump units, in particular to a throttle control device of a centrifugal high-temperature heat pump unit.
Background
In our daily production life, a large amount of hot water with the temperature of about 75 ℃ and even higher is often needed, such as heating by a household radiator, medical hot water in a hospital, waste heat recovery of industrial waste water and the like, conventionally, coal-fired boilers are usually adopted in China to obtain high-temperature hot water, domestic hot water temperature is higher than 75 ℃ and research on a high-temperature heat pump technology with the heating capacity of more than 3MW is almost blank, and as the capacity of a centrifugal high-temperature heat pump unit is larger, the higher the water outlet temperature is, the more energy is consumed, the unit is not well treated in a throttling link, and therefore, one of the main reasons is that the efficiency is not high is not good.
Disclosure of Invention
The utility model aims to provide a throttle control device of a centrifugal high-temperature heat pump unit, so as to solve the problems in the background art.
In order to solve the technical problems, the utility model provides the following technical scheme: the throttle control device of the centrifugal high-temperature heat pump unit comprises a first-stage automatic regulating valve, a first-stage multiple orifice plate, a first-stage refrigerant pipeline, a gas-liquid separation device, a second-stage refrigerant pipeline, a second-stage automatic regulating valve, a second-stage multiple orifice plate, an evaporator, a first-stage air suction pipeline, a first-stage compressor, a second-stage air suction pipeline, a second-stage compressor, a second-stage air discharge pipeline, a condenser, an air supplementing pipeline, refrigerant flash evaporation gas and liquid saturated refrigerants, wherein one side of the condenser is connected with the first-stage refrigerant pipeline, one side of the first-stage refrigerant pipeline is connected with the gas-liquid separation device, one side of the gas-liquid separation device is connected with the second-stage refrigerant pipeline, one side of the second-stage refrigerant pipeline is connected with the evaporator, one side of the first-stage air suction pipeline is connected with the first-stage compressor, one side of the first-stage compressor is connected with the second-stage air suction pipeline, one side of the second-stage compressor is connected with the second-stage air discharge pipeline, and one side of the second-stage air discharge pipeline is connected with one side of the condenser.
Preferably, one side of the first compressor is connected with a first exhaust pipeline, and the first exhaust pipeline is connected with one side of the second suction pipeline
Preferably, the first-stage automatic regulating valve is arranged on the first-stage refrigerant pipeline, and a first-stage multiple pore plate is arranged in the first-stage refrigerant pipeline.
Preferably, the two-stage refrigerant pipeline is provided with a two-stage automatic regulating valve, and the interior of the two-stage refrigerant pipeline is provided with a two-stage multiple pore plate.
Preferably, one side of the gas-liquid separation device is connected with a gas supplementing pipeline, and the gas supplementing pipeline is connected with the input end of the two sections of air suction pipelines.
Preferably, the inside of the first-stage multiple pore plate is provided with refrigerant flash evaporation gas, and the inside of the first-stage multiple pore plate is provided with liquid saturated refrigerant.
Compared with the prior art, the utility model has the beneficial effects that: the utility model has simple and easy structure and reliable and stable performance, and can well solve the problem of poor throttling effect under the high-temperature heating condition no matter the unit adopts a compressor series connection mode or a two-stage compression mode.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is a schematic diagram of the present utility model.
In the figure: 1. a first-stage automatic regulating valve; 2. a primary multiple orifice plate; 3. a section of refrigerant pipeline; 4. a gas-liquid separation device; 5. a second-stage refrigerant pipeline; 6. a secondary automatic regulating valve; 7. a secondary multiple orifice plate; 8. an evaporator; 9. a section of suction line; 10. a compressor section; 11. a section of exhaust line; 12. a second section of suction line; 13. a two-stage compressor; 14. a second section of exhaust line; 15. a condenser; 16. an air supplementing pipeline; 17. flash evaporation of the refrigerant gas; 18. and (3) liquid saturated refrigerant.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-2, an embodiment of the present utility model is provided: the throttling control device of the centrifugal high-temperature heat pump unit comprises a first-stage automatic regulating valve 1, a first-stage multiple orifice plate 2, a first-stage refrigerant pipeline 3, a gas-liquid separation device 4, a second-stage refrigerant pipeline 5, a second-stage automatic regulating valve 6, a second-stage multiple orifice plate 7, an evaporator 8, a first-stage air suction pipeline 9, a first-stage compressor 10, a first-stage air discharge pipeline 11, a second-stage air suction pipeline 12, a second-stage compressor 13, a second-stage air discharge pipeline 14, a condenser 15, an air supplementing pipeline 16, refrigerant flash evaporation gas 17 and liquid saturated refrigerants 18, wherein one side of the condenser 15 is connected with the first-stage refrigerant pipeline 3, one side of the first-stage refrigerant pipeline 3 is connected with the gas-liquid separation device 4, one side of the gas-liquid separation device 4 is connected with the second-stage refrigerant pipeline 5, one side of the second-stage refrigerant pipeline 5 is connected with the evaporator 8, one side of the evaporator 8 is connected with the first-stage air suction pipeline 9, one side of the first-stage air suction pipeline 9 is connected with the first-stage compressor 10, one side of the first-stage compressor 10 is connected with the second-stage air suction pipeline 12, one side of the second-stage air suction pipeline 12 is connected with the second-stage compressor 13, one side of the second-stage air suction pipeline 13 is connected with the second-stage compressor 13, one side of the second-stage compressor 13 is connected with the second-stage compressor 13, one side 14 is connected with the second-stage compressor 14, and one side 14 is connected with the second-stage air discharge pipeline 14; one side of the first section of compressor 10 is connected with a first section of exhaust pipeline 11, and the first section of exhaust pipeline 11 is connected with one side of the second section of suction pipeline 12; a first-stage automatic regulating valve 1 is arranged on a first-stage refrigerant pipeline 3, and a first-stage multiple pore plate 2 is arranged in the first-stage refrigerant pipeline 3; a second-stage automatic regulating valve 6 is arranged on the second-stage refrigerant pipeline 5, and a second-stage multiple pore plate 7 is arranged in the second-stage refrigerant pipeline 5; one side of the gas-liquid separation device 4 is connected with a gas supplementing pipeline 16, and the gas supplementing pipeline 16 is connected with the input end of the two sections of the air suction pipelines 12; the inside of the first-stage multiple orifice plate 2 is provided with refrigerant flash evaporation gas 17, and the inside of the first-stage multiple orifice plate 2 is provided with liquid saturated refrigerant 18.
Working principle: when the operation cycle of the utility model is used, firstly, high-temperature and high-pressure refrigerant gas formed after being compressed by the first-stage compressor 10 and the second-stage compressor 13 enters the condenser 15, high-temperature and high-pressure liquid refrigerant is formed after the high-temperature and high-pressure liquid refrigerant is condensed by carrying out heat release and heat transfer with low-grade hot water in the condenser, then enters the first-stage refrigerant pipeline 3, the first-stage automatic regulating valve 1 controls the flow rate, the first-stage multiple orifice plate 2 is used for throttling, depressurization and cooling, the refrigerant flash evaporation gas 17 and the liquid saturated refrigerant 18 form a medium-temperature medium-pressure gas-liquid mixed state refrigerant medium, the medium-temperature medium-pressure gas-liquid mixed state refrigerant medium flows into the gas-liquid separation device 4 with the high-efficiency gas-liquid separation function and the filtering device and is filtered and separated, the separated gas-state refrigerant is discharged into the second-stage suction pipeline 12 after being converged, cooled and depressurized by the refrigerant discharged into the first-stage exhaust pipeline 11 after being compressed by the first-stage compressor 10 through the gas-stage automatic regulating valve 1, then the liquid refrigerant enters the two-stage compressor 13 to be compressed again and then is discharged into the two-stage exhaust pipeline 14, the separated liquid refrigerant flows into the two-stage refrigerant pipeline 5, the liquid refrigerant enters the two-stage multi-orifice plate 7 to be throttled, cooled and depressurized again after flowing through the two-stage automatic regulating valve 6 arranged on the liquid refrigerant to reach the preset low-temperature low-pressure refrigerant, then enters the evaporator 8, and is sucked into the one-stage compressor 10 through the one-stage suction pipeline 9 after heat transfer, heat absorption and evaporation with low-grade heat source water, the centrifugal impeller in the one-stage compressor rotationally compresses the refrigerant medium at a high speed, then is discharged into the one-stage exhaust pipeline 11, and enters the two-stage suction pipeline 12 after being mixed and cooled with the gas refrigerant separated by the gas-liquid separating device 4, and then enters the two-stage compressor 13 to be compressed again to form high-temperature high-pressure refrigerant gas, thus the circulation is finally achieved, the distance between the one-stage automatic regulating valve 1 and the one-stage multi-orifice plate 2 is not suitable to be smaller than 400mm, the primary automatic regulating valve 1 ensures that the flow speed is about 20m/s, the primary multiple orifice plate 2 is two or more layers, the thickness is not more than 2.5mm, and the length of a downstream pipeline of the primary multiple orifice plate 2 is not less than 100mm.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (6)
1. The utility model provides a centrifugal high temperature heat pump unit throttle control device, includes one section refrigerant pipeline (3), gas-liquid separation device (4), second section refrigerant pipeline (5), evaporimeter (8), one section pipeline of breathing in (9), one section compressor (10), one section exhaust pipeline (11), second section pipeline of breathing in (12), second section compressor (13), second section exhaust pipeline (14) and condenser (15), its characterized in that: one side of condenser (15) is connected with one section refrigerant pipeline (3), one side of one section refrigerant pipeline (3) is connected with gas-liquid separation device (4), one side of gas-liquid separation device (4) is connected with two sections refrigerant pipeline (5), one side of two sections refrigerant pipeline (5) is connected with evaporimeter (8), one side of evaporimeter (8) is connected with one section pipeline (9) of breathing in, one side of one section pipeline (9) of breathing in is connected with one section compressor (10), one side of one section compressor (10) is connected with two sections pipeline (12) of breathing in, one side of two sections pipeline (12) of breathing in is connected with two sections compressor (13), one side of two sections compressor (13) is connected with two sections exhaust pipeline (14), and two sections exhaust pipeline (14) are connected in one side of condenser (15).
2. The throttle control device of a centrifugal high-temperature heat pump unit according to claim 1, characterized in that: one side of the first section of compressor (10) is connected with a section of exhaust pipeline (11), and the first section of exhaust pipeline (11) is connected with one side of the second section of suction pipeline (12).
3. The throttle control device of a centrifugal high-temperature heat pump unit according to claim 1, characterized in that: the one-stage refrigerant pipeline (3) is provided with a one-stage automatic regulating valve (1), and a one-stage multiple pore plate (2) is arranged in the one-stage refrigerant pipeline (3).
4. The throttle control device of a centrifugal high-temperature heat pump unit according to claim 1, characterized in that: the two-stage refrigerant pipeline (5) is provided with a two-stage automatic regulating valve (6), and a two-stage multiple pore plate (7) is arranged in the two-stage refrigerant pipeline (5).
5. The throttle control device of a centrifugal high-temperature heat pump unit according to claim 1, characterized in that: one side of the gas-liquid separation device (4) is connected with a gas supplementing pipeline (16), and the gas supplementing pipeline (16) is connected with the input end of the two sections of gas suction pipelines (12).
6. A throttle control device of a centrifugal high-temperature heat pump unit according to claim 3, characterized in that: the inside of the first-stage multiple orifice plate (2) is provided with refrigerant flash evaporation gas (17), and the inside of the first-stage multiple orifice plate (2) is provided with liquid saturated refrigerant (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320927561.0U CN220689402U (en) | 2023-04-23 | 2023-04-23 | Throttle control device of centrifugal high-temperature heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320927561.0U CN220689402U (en) | 2023-04-23 | 2023-04-23 | Throttle control device of centrifugal high-temperature heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220689402U true CN220689402U (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320927561.0U Active CN220689402U (en) | 2023-04-23 | 2023-04-23 | Throttle control device of centrifugal high-temperature heat pump unit |
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| Country | Link |
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| CN (1) | CN220689402U (en) |
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2023
- 2023-04-23 CN CN202320927561.0U patent/CN220689402U/en active Active
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