CN212871750U - Novel trans-critical CO2Heat pump component testing device - Google Patents
Novel trans-critical CO2Heat pump component testing device Download PDFInfo
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- CN212871750U CN212871750U CN202021727338.4U CN202021727338U CN212871750U CN 212871750 U CN212871750 U CN 212871750U CN 202021727338 U CN202021727338 U CN 202021727338U CN 212871750 U CN212871750 U CN 212871750U
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- heat exchanger
- carbon dioxide
- pressure test
- heat pump
- pump
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Abstract
The utility model discloses a novel transcritical CO2Heat pump unit testing arrangement, including heat exchanger pressure test room, transcritical carbon dioxide heat pump heat exchanger is installed through the bolt in the inside of heat exchanger pressure test room, and installs the nitrogen gas booster pump through the bolt on the heat exchanger pressure test room is close to one side inner wall of transcritical carbon dioxide heat pump heat exchanger, installs the pressure test system through the bolt on the heat exchanger pressure test room is close to one side outer wall of nitrogen gas booster pump. The utility model discloses increase a heat exchanger pressure test room to take place when solving the testDeviation of material materials, deviation of welding quality and easiness in leakage or breakage of welding positions of product pipelines are avoided, personnel injury is avoided, the design and operation pressure values of the trans-critical carbon dioxide heat pump heat exchanger are completely achieved, the failure rate of the carbon dioxide heat pump heat exchanger is reduced, and after-sale maintenance cost is saved.
Description
Technical Field
The utility model relates to a carbon dioxide heat pump heat exchanger gas tightness pressure detection technical field especially relates to a novel transcritical CO2A heat pump component testing device.
Background
At present, the carbon dioxide heat pump heat exchanger adopts a common safe pressure value for detection, and the biggest defect is that the design pressure value of the transcritical carbon dioxide heat pump heat exchanger is not reached at all, and the product defects and the performance attenuation of the heat exchanger are caused by the material deviation and the welding quality deviation in the use process.
The carbon dioxide heat pump heat exchanger and the connecting pipeline thereof must ensure that the whole circulating system is strictly sealed and has no leakage, the carbon dioxide heat pump heat exchanger is used as an indispensable component of the carbon dioxide heat pump unit, the air tightness of the carbon dioxide heat pump heat exchanger can seriously affect the quality of the carbon dioxide heat pump unit, and therefore, after the heat exchanger is processed, the air tightness and pressure detection must be carried out. Therefore, there is a need to design a novel transcritical CO2The heat pump component testing device solves the problems.
Disclosure of Invention
The utility model aims at solving the defects existing in the prior art and providing a novel trans-critical CO2A heat pump component testing device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: novel trans-critical CO2The heat pump component testing device comprises a heat exchanger pressure testing room, wherein the heat exchanger pressure testing room is used for testing the pressure of the heat exchangerThe inside in room is installed through the bolt and is striden critical carbon dioxide heat pump heat exchanger, and installs the nitrogen gas booster pump through the bolt on the heat exchanger pressure test room is close to one side inner wall of striding critical carbon dioxide heat pump heat exchanger, install the pressure test system through the bolt on the heat exchanger pressure test room is close to one side outer wall of nitrogen gas booster pump.
Furthermore, the transcritical carbon dioxide heat pump heat exchanger, the nitrogen booster pump and the pressure testing system are communicated through connecting pipe fittings.
The utility model has the advantages that:
1. through the heat exchanger pressure test room that sets up, increase a heat exchanger pressure test room to the deviation of taking place the material when solving the test, welding quality's deviation, product pipeline welded junction reveal easily or break, avoid causing personnel's injury.
2. The design and operation pressure values of the transcritical carbon dioxide heat pump heat exchanger are completely achieved by the matching use of the transcritical carbon dioxide heat pump heat exchanger, the nitrogen booster pump and the pressure testing system, the failure rate of the carbon dioxide heat pump heat exchanger is reduced in the using process, and the after-sale maintenance cost is saved.
3. The utility model discloses simple structure, realization intelligence pressure measurement control effectively strengthen the security of personnel's operation, have the reliability high, can effectively carry and stride critical CO2The service life of the heat pump heat exchanger is long, the practicability is strong, and the reduction of transcritical CO is avoided2After-sales service costs of heat pump heat exchangers.
Drawings
FIG. 1 shows a novel trans-critical CO provided by the present invention2The structural schematic diagram of the heat pump component testing device.
In the figure: 1 trans-critical carbon dioxide heat pump heat exchanger, 2 nitrogen booster pump, 3 pressure test system, 4 heat exchanger pressure test room.
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.
Please refer to FIG. 1, a novel trans-critical CO2The heat pump component testing device comprises a heat exchanger pressure testing room 4, wherein a transcritical carbon dioxide heat pump heat exchanger 1 is installed inside the heat exchanger pressure testing room 4 through a bolt, a nitrogen booster pump 2 is installed on the inner wall, close to the transcritical carbon dioxide heat pump heat exchanger 1, of the heat exchanger pressure testing room 4 through a bolt, a pressure testing system 3 is installed on the outer wall, close to the nitrogen booster pump 2, of the heat exchanger pressure testing room 4 through a bolt, and firstly, visual inspection is conducted on a connecting pipeline; after the test is normal, starting a nitrogen booster pump, injecting a certain amount of 3MPa nitrogen into the pipeline and the carbon dioxide heat pump heat exchanger, carrying out visual inspection on the connecting pipeline, each device and the joint, then after the test is normal, starting the nitrogen booster pump, injecting a certain amount of 5MPa nitrogen into the connecting pipeline and the carbon dioxide heat pump heat exchanger, carrying out pressure test system pressure maintaining on the connecting pipeline, each device and the joint for 10 minutes, finally after the test is normal, starting the nitrogen booster pump, injecting a certain amount of 16MPa nitrogen into the connecting pipeline and the carbon dioxide heat pump heat exchanger, carrying out pressure test system pressure maintaining on the connecting pipeline, each device and the joint for 60 minutes, judging that the test is qualified if no pressure fluctuates up and down, otherwise judging that the test is unqualified, and opening an exhaust valve on the nitrogen booster pump to control the flow rate after the test is finished, and discharging the nitrogen in the connecting pipeline, each device and the joint.
Furthermore, the transcritical carbon dioxide heat pump heat exchanger 1, the nitrogen booster pump 2 and the pressure testing system 3 are communicated through connecting pipe fittings.
The working principle is as follows: the novel transcritical CO2When the heat pump component testing device is used and the air tightness of the carbon dioxide heat pump heat exchanger is detected, firstly, the connecting pipeline is visually detectedChecking; after the test is normal, starting a nitrogen booster pump, injecting a certain amount of 3MPa nitrogen into the pipeline and the carbon dioxide heat pump heat exchanger, carrying out visual inspection on the connecting pipeline, each device and the joint, then after the test is normal, starting the nitrogen booster pump, injecting a certain amount of 5MPa nitrogen into the connecting pipeline and the carbon dioxide heat pump heat exchanger, carrying out pressure test system pressure maintaining on the connecting pipeline, each device and the joint for 10 minutes, finally after the test is normal, starting the nitrogen booster pump, injecting a certain amount of 16MPa nitrogen into the connecting pipeline and the carbon dioxide heat pump heat exchanger, carrying out pressure test system pressure maintaining on the connecting pipeline, each device and the joint for 60 minutes, judging that the test is qualified if no pressure fluctuates up and down, otherwise judging that the test is unqualified, and opening an exhaust valve on the nitrogen booster pump to control the flow rate after the test is finished, and discharging the nitrogen in the connecting pipeline, each device and the joint.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (2)
1. Novel trans-critical CO2Heat pump unit testing arrangement, including heat exchanger pressure test room (4), its characterized in that, transcritical carbon dioxide heat pump heat exchanger (1) is installed through the bolt to the inside in heat exchanger pressure test room (4), and installs nitrogen gas booster pump (2) through the bolt on heat exchanger pressure test room (4) is close to one side inner wall of transcritical carbon dioxide heat pump heat exchanger (1), install pressure test system (3) through the bolt on heat exchanger pressure test room (4) is close to one side outer wall of nitrogen gas booster pump (2).
2. The novel transcritical CO of claim 12Heat pump component testing deviceThe device is characterized in that the transcritical carbon dioxide heat pump heat exchanger (1), the nitrogen booster pump (2) and the pressure testing system (3) are communicated through connecting pipe fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021727338.4U CN212871750U (en) | 2020-08-18 | 2020-08-18 | Novel trans-critical CO2Heat pump component testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021727338.4U CN212871750U (en) | 2020-08-18 | 2020-08-18 | Novel trans-critical CO2Heat pump component testing device |
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| CN212871750U true CN212871750U (en) | 2021-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544091A (en) * | 2021-12-28 | 2022-05-27 | 杭州五维检测技术有限公司 | Transcritical CO2Heat pump leakage detection vibration rack |
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2020
- 2020-08-18 CN CN202021727338.4U patent/CN212871750U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544091A (en) * | 2021-12-28 | 2022-05-27 | 杭州五维检测技术有限公司 | Transcritical CO2Heat pump leakage detection vibration rack |
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