Refrigerant charging and pouring seal device and seal method

A sealing device and refrigerant technology, which is applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as use restrictions, and achieve the effect of simple and convenient operation

Inactive Publication Date: 2009-01-28
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because hydrocarbon refrigerants are flammable and explosive, their use is also subject to many restrictions. Solving the safety problems of their production and use is one of the focuses that people have been working on.

Method used

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  • Refrigerant charging and pouring seal device and seal method

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Embodiment Construction

[0013] The invention adopts a charging pipe with an internal thread at the mouth of the pipe. After filling, the filling pipe is flattened and the filling pipe mouth is sealed with bolts to realize sealing. The device and method provided by the present invention do not need to use flame to melt and seal the filling port, so as to prevent the high-temperature flame from decomposing the leaked Freon refrigerant into toxic gas or igniting the flammable refrigerant.

[0014] like figure 1 As shown, the refrigerant charging and sealing device provided by the present invention includes a refrigeration pipeline 1 and a charging pipe 2, wherein the charging pipe 2 is provided with a flattened mouth 3, and the end of the charging pipe 2 is provided with an internal thread, and the sealing The bolt 6 cooperates with the internal thread and is arranged at the end of the charging pipe 2. A sealing washer 5 is arranged between the nail cap of the sealing bolt 6 and the end of the charging ...

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Abstract

The invention relates to a sealing technology for filling of gas or liquid, in particular to a sealing device filled by various refrigerants and a sealing method thereof. The method adopts a filler pipe, a nozzle of which is provided with internal threads, and sealing is realized by pressing the filler pipe after filling to be a flat shape and utilizing a bolt to block off the nozzle of the filler pipe. The device and the method provided by the invention do not need utilization of the flames for melting and sealing a filler nozzle, avoid that the leaked freon refrigerant is reduced into noxious gases by high-temperature flames or flammable refrigerants are ignited, and has simple, convenient, secure and reliable operation process and low requirements for the arrangement of the filler pipes.

Description

technical field [0001] The invention relates to gas or liquid filling sealing technology, in particular to various refrigerant filling sealing devices and sealing methods. Background technique [0002] At present, the most popular way to seal the refrigeration equipment after it is filled with refrigerant is to clamp the flat charging tube with sealing pliers, remove the quick connector and perform flame welding on the charging port, so as to melt and seal the charging nozzle to realize refrigeration. agent seal. This flame welding method is mainly suitable for the sealing of non-flammable refrigerants such as Freon, and it is very dangerous for the sealing of flammable and explosive refrigerants. In addition, this method is not very safe for Freon refrigerants, because Freon refrigerants will decompose at high temperatures and produce toxic gases. [0003] In addition, the flame welding operation has relatively high technical requirements for workers, the working environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B45/00
Inventor 黄玉优肖洪海
Owner GREE ELECTRIC APPLIANCES INC
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