CN216845126U - Superheat degree regulating device for carbon dioxide heat pump hot water system - Google Patents
Superheat degree regulating device for carbon dioxide heat pump hot water system Download PDFInfo
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- CN216845126U CN216845126U CN202123376319.9U CN202123376319U CN216845126U CN 216845126 U CN216845126 U CN 216845126U CN 202123376319 U CN202123376319 U CN 202123376319U CN 216845126 U CN216845126 U CN 216845126U
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- electromagnetic valve
- superheat degree
- regenerator
- carbon dioxide
- hot water
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Abstract
A superheat degree adjusting device of a carbon dioxide heat pump hot water system comprises a compressor, an air cooler, a heat regenerator, an expansion valve and an evaporator which are sequentially connected through pipelines, wherein a second electromagnetic valve is arranged on the pipeline between the evaporator and the compressor, and a first electromagnetic valve is arranged between the second electromagnetic valve and the heat regenerator. The utility model discloses a refrigerant flow of regenerator is flowed through in the combination control of solenoid valve to increase the flexibility and the scope of system superheat degree control. Compared with the prior art, the method increases partial participating working modes on the basis that the heat regenerator participates in system operation and does not participate in system operation, and increases the flexibility and the adjusting range of system control.
Description
Technical Field
The utility model belongs to an air conditioner adjusting device relates to a carbon dioxide heat pump hot water system superheat degree adjusting device particularly.
Background
The superheat degree of a refrigeration air-conditioning system refers to the fact that the temperature of a refrigerant at an air suction port of a compressor is higher than the saturation temperature of the refrigerant corresponding to air suction pressure, and the refrigeration system generally maintains a certain superheat degree by adjusting the flow of the refrigerant through a throttling device, so that the reliable operation of the system is guaranteed. The energy efficiency ratio of the carbon dioxide heat pump water heater system is in a functional relation with the high pressure of the system. The adjustment of the high pressure is realized through the opening degree of the expansion valve, and meanwhile, the opening degree of the expansion valve influences the degree of superheat of the system. How to meet the superheat degree of the system and the high-pressure of the system is the key for successful control of the system, and the flexibility and the range of superheat degree control are very important to increase.
The method for increasing the superheat degree of the existing air-conditioning refrigeration system generally uses a heat regenerator, namely, a gas exhaust pipeline and a gas suction pipeline of the system exchange heat. For the purpose of flexibly controlling the superheat degree of the system, a three-way valve 6 is added in the system of a part of the refrigeration air-conditioning system, as shown in fig. 1, and is used for controlling the flow direction of the refrigerant, and a regenerator is used or not.
Therefore, the scheme of controlling the degree of superheat in the prior art does not use a heat regenerator, uses the heat regenerator 3, and uses a three-way valve 6 to switch whether to use the heat regenerator 3 according to the working condition. These solutions can meet the requirement of superheat control to some extent, but the effect of superheat control is related to the size of regenerator 3.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: how to design a carbon dioxide heat pump hot water unit to through certain adjusting device, can realize the nimble regulation of system superheat degree, improve system efficiency, guarantee system performance and reliable operation.
The technical scheme of the utility model specifically does:
a superheat degree adjusting device of a carbon dioxide heat pump hot water system comprises a compressor, an air cooler, a heat regenerator, an expansion valve and an evaporator which are sequentially connected through pipelines, wherein a second electromagnetic valve is arranged on the pipeline between the evaporator and the compressor, and a first electromagnetic valve is arranged between the second electromagnetic valve and the heat regenerator.
The first electromagnetic valve and the second electromagnetic valve are two electromagnetic valves with the same specification.
The first electromagnetic valve and the second electromagnetic valve are both proportional flow valves.
The utility model has the advantages that: the utility model discloses a refrigerant flow of regenerator is flowed through in the combination control of solenoid valve to increase the flexibility and the scope of system superheat degree control. Compared with the prior art, the method increases partial participating working modes on the basis that the heat regenerator participates in system operation and does not participate in system operation, and increases the flexibility and the adjusting range of system control.
Drawings
FIG. 1 is a prior art schematic;
fig. 2 is a schematic diagram of the structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 2, a carbon dioxide heat pump hot water system superheat degree adjusting device, include the compressor 1, the air cooler 2, the regenerator 3, the expansion valve 4 and the evaporimeter 5 that connect gradually through the pipeline, the utility model discloses set up second solenoid valve 7 on the pipeline between evaporimeter 5 and compressor 1, set up first solenoid valve 8 between second solenoid valve 7 and regenerator 3.
The utility model discloses an increase two solenoid valves on current air conditioner refrigerating system's the basis, can realize nimble realization and use the regenerator, do not use the regenerator, three kinds of mode of regenerator 50% load work.
The following three working modes can be realized through the combined use of the electromagnetic valves, and the superheat degree can be flexibly adjusted:
1. without regenerator mode:
in this mode, the first solenoid valve 8 is closed, the second solenoid valve 7 is opened, and the refrigerant from the evaporator 5 is introduced into the compressor 1 through the second solenoid valve 7. The superheat of the system in this mode of operation is fully regulated by the expansion valve 4.
2. Using the regenerator mode:
in this mode, the second electromagnetic valve 7 is closed, the first electromagnetic valve 8 is opened, and the refrigerant flowing out of the evaporator 5 enters the heat regenerator 3 after passing through the first electromagnetic valve 8, absorbs heat, increases superheat degree, and then enters the compressor 1. The superheat of the system in this operating mode is determined by the size of the regenerator 3 and the opening degree of the expansion valve 4.
3. Regenerator 50% load mode:
in this mode, the first solenoid valve 8 is opened, the second solenoid valve 7 is opened, a part of the refrigerant flowing out of the evaporator 5 enters the heat regenerator 3 after passing through the first solenoid valve 8, absorbs heat to increase superheat degree, and then the refrigerant flowing out of the evaporator 5 and passing through the second solenoid valve 7 is mixed and enters the compressor 1. The superheat of the system in this operation mode is determined by the size of the regenerator 3 and the opening degree of the expansion valve 4, and the ratio of the refrigerant flow rates through the first solenoid valve 8 and the second solenoid valve 7.
The utility model discloses a use of the solenoid valve control regenerator of two the same specifications, the further use that can use two or more solenoid valve control regenerators of different specifications. Further, the first solenoid valve 8 and the second solenoid valve 7 may be both proportional flow valves, and the use of the regenerator is controlled by using a flow valve having a flow proportional control function.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.
Claims (3)
1. The utility model provides a carbon dioxide heat pump hot water system superheat degree adjusting device, includes compressor (1), air cooler (2), regenerator (3), expansion valve (4) and evaporimeter (5) that connect gradually through the pipeline, its characterized in that: a second electromagnetic valve (7) is arranged on a pipeline between the evaporator (5) and the compressor (1), and a first electromagnetic valve (8) is arranged between the second electromagnetic valve (7) and the heat regenerator (3).
2. The carbon dioxide heat pump hot water system superheat degree adjusting device as claimed in claim 1, characterized in that: the first electromagnetic valve (8) and the second electromagnetic valve (7) are two electromagnetic valves with the same specification.
3. The carbon dioxide heat pump hot water system superheat degree adjusting device as claimed in claim 1, characterized in that: the first electromagnetic valve (8) and the second electromagnetic valve (7) are both proportional flow valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123376319.9U CN216845126U (en) | 2021-12-30 | 2021-12-30 | Superheat degree regulating device for carbon dioxide heat pump hot water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123376319.9U CN216845126U (en) | 2021-12-30 | 2021-12-30 | Superheat degree regulating device for carbon dioxide heat pump hot water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216845126U true CN216845126U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123376319.9U Active CN216845126U (en) | 2021-12-30 | 2021-12-30 | Superheat degree regulating device for carbon dioxide heat pump hot water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216845126U (en) |
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2021
- 2021-12-30 CN CN202123376319.9U patent/CN216845126U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 202, Workshop 1, No. 8 Changchun Road, High tech Industrial Development Zone, Zhengzhou City, Henan Province, 450000 Patentee after: Zhengzhou Zhibo Environmental Technology Co.,Ltd. Address before: 450001 Room 202, workshop 1, No.8, Changchun Road, high tech Industrial Development Zone, Zhengzhou City, Henan Province Patentee before: Zhengzhou Zhibo Intelligent Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |