Non-water-cutoff construction method for water-break mounting and maintaining of water supply pipeline

Abstract

The invention aims to provide a non-water-cutoff construction method for water-break mounting and maintaining of a water supply pipeline. The non-water-cutoff construction method for water-break mounting and maintaining of the water supply pipeline comprises the steps that the periphery of a water pipeline is sleeved with a half tee joint, the half tee joint is connected with one end of a gate valve, and the other end of the gate valve is connected with a non-water-cutoff opening drill body; an opening is drilled in the water pipeline through a non-water-cutoff opening drill; after the opening of the water pipeline is formed, a drill rod of the non-water-cutoff opening drill is pulled out, the gate valve is closed, the drill rod of the non-water-cutoff opening drill is replaced by a rubber end cap hollow ejection rod, and a rubber end cap is mounted on the rubber end cap hollow ejection rod; the gate valve is opened, the rubber end cap hollow ejection rod is pushed, pressurizing is conducted, the rubber end cap expands, water in the water pipeline is cut off, and then construction can be conducted; and after construction is completed, the rubber end cap is deflated, a positioning sleeve is loosened, the gate valve is closed while the rubber end cap hollow ejection rod and the rubber end cap are taken out, branched pipes of the half tee joint are closed, and the non-water-cutoff opening drill body is dismounted. The non-water-cutoff construction method for water-break mounting and maintaining of the water supply pipeline is simple, easy to operate, convenient to use and low in cost and has great economic benefits and social benefits.

Description

technical field [0001] The invention relates to water supply, in particular to a non-stop water construction method for installation and maintenance of water supply pipelines. Background technique [0002] With the rapid and continuous development of the city, many municipal water supply pipeline facilities laid in the 1970s and 1980s began to have many problems. Renovation construction, such as household meter renovation, low-voltage renovation, and emergency repair of water leakage, all bring a lot of troubles. The water cannot stop, and modification and maintenance cannot be carried out. The valve of the main pipe at the level is closed, resulting in a large area without water, and the masses have great opinions. The second measure is to bring water to dry up, and pumps must be used to pump water. It is inconvenient, and especially in winter construction, it is difficult for workers to bear the pain caused by this kind of water-carrying operation, and the construction is...

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a construction method for water supply pipelines without stopping the water for installation and maintenance, which can effectively solve the problem that the water cannot be stopped during pipeline reconstruction and maintenance, and the construction is difficult.

[0006] The method of the invention is simple and easy to operate, convenient to use, low in cost, can effectively solve the problem of non-stop water supply during pipeline transformation and maintenance construction, and has huge economic and social benefits

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