ONLINE AUTOMATIC PURGING APPARATUS FOR COPPER TUBE

WIPO Patent Application WO/2022/001045

A1

An online automatic purging apparatus for a copper tube, the apparatus comprising a housing (100), wherein a cylindrical sealed cavity (100a) for a copper tube (1) to be inserted into is formed in the housing (100); one end of the cylindrical sealed cavity (100a) is positioned at a side portion of the housing (100) and is formed into a copper tube insertion port (101), and the other end of the cylindrical sealed cavity (100a) is closed; an annular sealed cavity (100b), which is in communication with the cylindrical sealed cavity (100a), is formed at a side portion of the cylindrical sealed cavity (100a) in the housing (100); a piston (300) for compressing a sealing member (200) to tightly hold the copper tube (1) is slidably configured on the annular sealed cavity (100b); and the housing (100) is respectively provided with a first compressed air port (110) and a second compressed air port (120) for feeding or discharging compressed air, and a nitrogen inlet (130) provided in the housing (100) and used for feeding nitrogen. Compared with the prior art, the apparatus can bear nitrogen purging under a relatively high pressure; and a sealing ring is relatively durable, the cost is low, and the number of times workers perform replacing and sealing is reduced.

ZHANG JUNHUI (CN)
YUAN LUXIAN (CN)
QI CONGYU (CN)

PCT/CN2020/140635

January 06, 2022

December 29, 2020

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SHANGHAI LONGYANG PRECISE COMPOUND COPPER TUBE CO LTD (CN)

B08B9/032; F16L17/02

CN109454068A	2019-03-12
CN102794282A	2012-11-28
CN207288249U	2018-05-01
CN203115341U	2013-08-07
US6050287A	2000-04-18
US6244287B1	2001-06-12

SHANGHAI L&W INTELLECTUAL PROPERTY LAW OFFICE, LLC (CN)

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