Drain valve with blowdown assembly

Abstract

The invention discloses a drain valve with a blowdown assembly. The drain valve includes a valve body, the lower surface of the valve body is provided with a blowdown pipe, the blowdown pipe communicates with the interior of the valve body, and the end, away from the valve body, of the blowdown pipe is provided with a pipe plug; and the pipe plug is located on the upper surface outside the blowdown pipe and fixedly connected with one ends of two tension springs, the other ends of the tension springs are fixedly connected with the lower surfaces of two fixing blocks, and the two fixing blocks are fixedly connected to the outer surface of the blowdown pipe. When blowdown is required, a pulling ring is pulled to drive the pipe plug to be pulled out from the blowdown pipe, the pipe plug movesdownwards to drive a connecting rod to move downward through a pulling rod, the connecting rod moves downward to drive a fixing ring to move downward, the fixing ring moves downward to drive a scraperto move downward, thus dirt adhering to the inner wall of the blowdown pipe is scraped off, and the inner wall of the blowdown pipe can also be cleared while blowdown is carried out; and the drain valve with the blowdown assembly has the advantages of blocking prevention, convenient and quick clearing in the blowdown pipe and the like.

Description

technical field [0001] The invention belongs to the technical field of steam trap parts, in particular to a steam trap with a sewage discharge assembly. Background technique [0002] Steam trap is a kind of valve, also known as steam trap, drain valve, which is to discharge condensed water, air and carbon dioxide gas in the steam system as soon as possible, and at the same time automatically prevent the leakage of steam to the greatest extent. There are many kinds of steam traps, each with different performances. When choosing a steam trap, you should first choose its characteristics to meet the best operation of the steam heating equipment, and then consider other objective conditions, so that it is correct to choose the steam trap you need and valid. [0003] Steam traps are often used in some steam heating equipment. Some sewage discharge components are installed in the steam traps to discharge the sewage in the equipment. Since the sewage contains a lot of dirt, it will...

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Problems solved by technology

[0003] Steam traps are often used in some steam heating equipment. Some sewage discharge components are installed in the steam traps to discharge the sewage in the equipment. Since the sewage contains a lot of dirt, it will adhere to the sewage when it is discharged. The inner wall of the pipe is prone to clogging, which affects the sewage discharge efficiency

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