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Sampling tool and sampling method for refrigerant of air-conditioning unit

A technology for air-conditioning units and refrigerants, which is applied to sampling devices and other directions, can solve problems such as refrigerant pollution, and achieve the effects of strong applicability, simple and reliable operation, and simple structure.

Active Publication Date: 2018-03-16
石家庄国祥运输设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a sampling tool and sampling method for the refrigerant of an air-conditioning unit, which uses negative pressure to extract samples from the refrigeration system, and sets a strict vacuum system to solve the problem of refrigerant leakage caused by the sampling process in the prior art. Pollution Technical Issues

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  • Sampling tool and sampling method for refrigerant of air-conditioning unit

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Embodiment Construction

[0018] The problem solved by the present invention is that the refrigerant is not subject to any pollution during the sampling process from the air-conditioning unit, so as to ensure that the test results truly reflect the cleanliness of the refrigeration system. For this reason, the sampling tool designed in this embodiment includes a liquid storage tank 4 and supporting pipes. Road system, the pipeline system includes three passages formed by means of tees and valve groups, and also includes a closed box 8, and the three passages pass through the closed box 8 to connect with the liquid storage tank 4 and the air conditioning unit 1 respectively. And the first vacuum pump 2 is connected to form a vacuum sampling system; the airtight box 8 is also communicated with the second vacuum pump 7 to form a vacuum protection structure. In this embodiment, the passage formed by the tee and the valve group is connected with the first vacuum pump. On the one hand, a vacuum environment is ...

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Abstract

The invention discloses a sampling tool for the refrigerant of an air-conditioning unit and a sampling method. The tooling is a sampling tool for the refrigerant of an air-conditioning unit, including a liquid storage tank and a matching pipeline system. The pipeline system includes a tee The three passages formed with the valve group also include a closed box, and the three passages pass through the closed box and are respectively connected with the liquid storage tank, the air conditioning unit and the first vacuum pump to form a vacuum sampling system; the closed box It is also communicated with the second vacuum pump to form a secondary vacuum protection structure. The invention can effectively solve the problem that the refrigerant is easily polluted during the extraction process, and the extracted samples can truly reflect the actual conditions of the refrigerant in the air-conditioning unit, such as components, impurities, and water content, and can help to solve the air-conditioning system. The cleanliness problem has broad application prospects in the air-conditioning and refrigeration industry.

Description

technical field [0001] The invention relates to a sampling tool, in particular to a sampling tool and a sampling method for the refrigerant of an air-conditioning unit. Background technique [0002] At present, the refrigerant detection standard is usually implemented in accordance with the ARI700 standard. This standard has clear requirements for the purity, water content, high boiling matter, acidity, impurities, non-condensable gas and other indicators of the refrigerant. Refrigerant manufacturers can generally provide this standard. However, this can only prove that the refrigerant meets the standard requirements before it is charged into the air-conditioning refrigeration system. [0003] The air-conditioning and refrigeration system is composed of pipelines, heat exchangers, various refrigeration components, compressors and other parts through brazing or threaded connections. During the production process, it is inevitable that air, water, impurities, oil and other sub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/14
Inventor 赵钧刘晓东张志平白澎高学军
Owner 石家庄国祥运输设备有限公司
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