Water supply pipeline water cut-off and drainage anti-freezing converter and method

Abstract

The invention discloses a water supply pipeline water cut-off and drainage anti-freezing converter and method. The converter comprises a shell, a force bearing component and a piston assembly; a water inlet flow channel, a water outlet flow channel, a water drainage flow channel and a piston cylinder are arranged on the shell, and the four channels communicate with one another; one end of the force bearing component is located outside the shell, the other end is arranged in the shell, the piston assembly is arranged in the piston cylinder, and the end of the piston assembly is connected with the force bearing component; the piston assembly comprises a first piston, a second piston and a third piston, the three pistons are all arranged on a piston rod, and the movement path of the first piston is a piston cylinder part between the water inlet flow channel and the force bearing component; the movement path of the second piston is the piston cylinder part between the water inlet flow channel and the water outlet flow channel and between the water outlet flow channel and the water drainage flow channel; and the movement path of the third piston is the piston cylinder part between the water outlet flow channel and the water drainage flow channel. The converter can well solve the problem that heat preservation and freezing prevention of water supply pipelines in villages and towns are difficult.

Description

technical field [0001] The invention belongs to the technical field of water supply, and belongs to heat preservation and antifreeze of water supply pipelines, and in particular to a water supply pipeline water cutoff and drainage antifreeze converter and method. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Affected by climate and latitude, the water supply system of northern villages and towns still has the problem of freezing and blocking pipes caused by low temperature in winter. At present, anti-freezing measures for water supply pipes in rural areas are relatively simple, which is very inconvenient to operate, and there is a certain risk of freezing. For water supply pipelines in villages and towns, the main pipes are generally buried below the freezing line and are difficult to freeze; while the aboveground part of the pipeline after ente...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the object of the present invention is to provide a water supply pipeline water cutoff and drainage antifreeze converter and method to solve the problem that the water supply pipelines in villages and towns are difficult to keep warm and prevent freezing

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