CN204404598U - A kind of screw type water source heat pump refrigerating and heating unit - Google Patents
A kind of screw type water source heat pump refrigerating and heating unit Download PDFInfo
- Publication number
- CN204404598U CN204404598U CN201420743135.2U CN201420743135U CN204404598U CN 204404598 U CN204404598 U CN 204404598U CN 201420743135 U CN201420743135 U CN 201420743135U CN 204404598 U CN204404598 U CN 204404598U
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- valve
- magnetic valve
- check valve
- magnetic
- evaporimeter
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The utility model discloses a kind of screw type water source heat pump refrigerating and heating unit, comprise compressor, the first magnetic valve, condenser, the first check valve, filter, expansion valve, the second check valve, evaporimeter, the second magnetic valve, the 3rd magnetic valve, the 3rd check valve, the 4th check valve and the 4th magnetic valve; Above-mentioned compressor, the first magnetic valve, condenser, the first check valve, filter, expansion valve, the second check valve, evaporimeter, the second magnetic valve are connected successively by connecting pipe, above-mentioned compressor, the 3rd magnetic valve, evaporimeter, the 3rd check valve, filter, expansion valve, the 4th check valve, condenser, the 4th magnetic valve are connected successively by connecting pipe, and the 4th magnetic valve is connected by connecting pipe with compressor respectively with the second magnetic valve.The utility model is opened by means of only inner switching solenoid valve and is controlled the operation that refrigerant flow direction just can realize unit refrigeration, heating mode.
Description
Technical field
The utility model technology relates to a kind of air-conditioning equipment, specifically refers to a kind of screw type water source heat pump refrigerating and heating unit.
Background technology
With reference to shown in Fig. 1, at present, screw type water source heat pump refrigerating and heating unit of the prior art comprises compressor 11, heat source side case tube heat exchanger 12(condenser), expansion valve 13 and load side case tube heat exchanger 14(evaporimeter).
When cooling operation mode, cold-producing medium exports from compressor 11 and enters condenser 12(and connect heat source side water inlet pipe and water outlet pipe) after enter expansion valve 13, enter after throttling evaporimeter 14(connect use side water inlet pipe and water outlet pipe), then come back to compressor 11.Under this duty, the heat of abandoning of condenser 12 generation is all recharged in heat source side by heat source side water inlet pipe and water outlet pipe, and the cold that evaporimeter 14 produces is connected with end unit by using side water inlet pipe and water outlet pipe, is supplied to user's use.
When heating operation mode, refrigerant flow direction is identical with refrigeration mode, but needing condenser 12 to connect uses side water inlet pipe and water outlet pipe, is connected with end unit, is supplied to user and uses.Evaporimeter 14 connects heat source side water inlet pipe and water outlet pipe, is extracted by heat from heat source side.
Existing screw type water source heat pump refrigerating and heating unit freezes by adopting the outside mode switching heat source side and use lateral line to realize, the operation of heating mode, execute man-hour requirement in unit assembling and reserve very large space to lay water lines and switching device shifter, need to increase multiple valve and threeway simultaneously, machine room area shared when both having wasted construction area and assembled, considerably increases again difficulty of construction and cost.
Summary of the invention
For overcoming above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of screw type water source heat pump refrigerating and heating unit, make no longer to switch by switching water lines valve, the operation that refrigerant flow direction just can realize unit refrigeration, heating mode is switched by means of only inside, the space shared by unit is reduced when unit assembling construction, reduce the difficulty of construction and installation, reduce construction cost.
A kind of screw type water source heat pump refrigerating and heating unit of the present utility model, comprises compressor, the first magnetic valve, condenser, the first check valve, filter, expansion valve, the second check valve, evaporimeter, the second magnetic valve, the 3rd magnetic valve, the 3rd check valve, the 4th check valve and the 4th magnetic valve; Above-mentioned compressor, the first magnetic valve, condenser, the first check valve, filter, expansion valve, the second check valve, evaporimeter, the second magnetic valve are connected successively by connecting pipe, above-mentioned compressor, the 3rd magnetic valve, evaporimeter, the 3rd check valve, filter, expansion valve, the 4th check valve, condenser, the 4th magnetic valve are connected successively by connecting pipe, and the 4th magnetic valve is connected by connecting pipe with compressor respectively with the second magnetic valve.
A kind of screw type water source heat pump refrigerating and heating unit of the present utility model by switching water lines valve, need not be opened by means of only inner switching solenoid valve and controlling the operation that refrigerant flow direction just can realize unit refrigeration, heating mode.
The beneficial effects of the utility model:
1. reduce outer water tube road and area occupied and machine room area are installed;
2. reduce the quantity of the engineering part such as valve and threeway, reduce water lines and lay difficulty, save project installation cost;
3. unit internal refrigeration storage agent pipeline can arbitrarily switch, and convenient refrigeration, heating mode conversion, reduce operation easier;
4. can avoid because heat source side undesired water after the switching of water route touches use side system and cause burn into damage end-equipment.
Accompanying drawing explanation
Fig. 1 illustrates the structural representation of screw type water source heat pump refrigerating and heating unit in prior art.
Fig. 2 illustrates the structural representation of screw type water source heat pump refrigerating and heating unit of the present utility model.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, be further described the utility model below in conjunction with embodiment and accompanying drawing, the content that embodiment is mentioned is not to restriction of the present utility model.
With reference to shown in Fig. 2, a kind of screw type water source heat pump refrigerating and heating unit of the present utility model, comprises compressor 21, first magnetic valve 22, condenser 23, first check valve 24, filter 25, expansion valve 26, second check valve 27, evaporimeter 28, second magnetic valve 29, the 3rd magnetic valve 30, the 3rd check valve 31, the 4th check valve 32 and the 4th magnetic valve 33; Above-mentioned compressor 21, first magnetic valve 22, condenser 23, first check valve 24, filter 25, expansion valve 26, second check valve 27, evaporimeter 28, second magnetic valve 29 are connected successively by connecting pipe, above-mentioned compressor 21, the 3rd magnetic valve 30, evaporimeter 28, the 3rd check valve 31, filter 25, expansion valve 26, the 4th check valve 32, condenser 23, the 4th magnetic valve 33 are connected successively by connecting pipe, and the 4th magnetic valve 33 and the second magnetic valve 29 are connected by connecting pipe with compressor 21 respectively.
The operation principle of screw type water source heat pump refrigerating and heating unit of the present utility model is as follows:
1. cooling condition:
The first magnetic valve 22 in unit and the second magnetic valve 29 electricly must be in open mode, enter condenser 23 condensation from compressor 21 high-temperature high-pressure refrigerant gas out through the first magnetic valve 22 and become high pressure liquid refrigerant, filter 25 dry filter is entered through the first check valve 24, the gas-liquid two-phase mix refrigerant of low-temp low-pressure is become again through expansion valve 26 throttling, evaporimeter 28 is entered by the second check valve 27, get back to compressor 21 through the second magnetic valve 29, complete a kind of refrigeration cycle.In this process, the 3rd magnetic valve 30 and the 4th magnetic valve 33 must not be in closed condition by electricity.
2. heating condition:
The 3rd magnetic valve 30 in unit and the 4th magnetic valve 33 electricly must be in open mode, compressor 21 starts, enter evaporimeter 28 from compressor cold-producing medium out through the 3rd magnetic valve 30 and carry out heat exchange, filter 25 dry filter is entered through the 3rd check valve 31, again through expansion valve 26 throttling, enter condenser 23 heat exchange again by the 4th check valve 32, then get back to compressor 21 through the 4th magnetic valve 33, complete one and heat circulation.In this process, the first magnetic valve 22 and the second magnetic valve 29 must not be in closed condition by electricity.
In above-mentioned screw type water source heat pump refrigerating and heating unit, the pattern refrigeration of unit, heating mode are converted to cold-producing medium and switch, and can complete in unit; The cold-producing medium switching of unit is completed by valve switch action; Unit switches with using water route, side without the need to carrying out heat source side when patten transformation.
The utility model embody rule approach is a lot; the above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvement, these improvement also should be considered as protection domain of the present utility model.
Claims (1)
1. a screw type water source heat pump refrigerating and heating unit, it is characterized in that, comprise compressor, the first magnetic valve, condenser, the first check valve, filter, expansion valve, the second check valve, evaporimeter, the second magnetic valve, the 3rd magnetic valve, the 3rd check valve, the 4th check valve and the 4th magnetic valve; Above-mentioned compressor, the first magnetic valve, condenser, the first check valve, filter, expansion valve, the second check valve, evaporimeter, the second magnetic valve are connected successively by connecting pipe, above-mentioned compressor, the 3rd magnetic valve, evaporimeter, the 3rd check valve, filter, expansion valve, the 4th check valve, condenser, the 4th magnetic valve are connected successively by connecting pipe, and the 4th magnetic valve is connected by connecting pipe with compressor respectively with the second magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743135.2U CN204404598U (en) | 2014-12-01 | 2014-12-01 | A kind of screw type water source heat pump refrigerating and heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743135.2U CN204404598U (en) | 2014-12-01 | 2014-12-01 | A kind of screw type water source heat pump refrigerating and heating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204404598U true CN204404598U (en) | 2015-06-17 |
Family
ID=53428450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420743135.2U Expired - Fee Related CN204404598U (en) | 2014-12-01 | 2014-12-01 | A kind of screw type water source heat pump refrigerating and heating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204404598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109002156A (en) * | 2018-10-11 | 2018-12-14 | 郑州云海信息技术有限公司 | A kind of novel closed-type phase-change type liquid cooled server system |
-
2014
- 2014-12-01 CN CN201420743135.2U patent/CN204404598U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109002156A (en) * | 2018-10-11 | 2018-12-14 | 郑州云海信息技术有限公司 | A kind of novel closed-type phase-change type liquid cooled server system |
| CN109002156B (en) * | 2018-10-11 | 2023-09-15 | 郑州云海信息技术有限公司 | Novel closed phase-change liquid cooling server system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |