Novel temperature sensing water flow control valve

Abstract

The invention relates to a novel temperature sensing water flow control valve which is mainly composed of a water inlet channel, a water outlet channel, a valve body, a temperature sensing glass ball and a fixed yoke rod. The interior of the valve body is communicated with the water inlet channel and the water outlet channel. The valve body is divided into a water inlet cavity and a water outlet cavity through a diaphragm. A valve rod and a spring in a stretching state are installed in the water outlet cavity. The spring is arranged on the valve rod in a sleeving mode, one end of the valve rod is connected with the diaphragm, and the other end of the valve rod is connected with one end of the temperature sensing glass ball in the yoke rod. The other end of the temperature sensing glass ball is fixed through a screw on the top of the yoke rod. An upper limiting device and a lower limiting device are arranged in the valve body, and the diaphragm moves between the upper limiting device and the lower limiting device. The height of the temperature sensing glass ball is not smaller than the distance between the limiting devices. The novel temperature sensing water flow control valve is simple in structure and reliable in performance and is mainly used for control over water flow on a water supply pipeline at the tail end of a nozzle of a wet type automatic sprinkler system.

Description

technical field [0001] The invention relates to a fire-fighting equipment, in particular to a temperature-sensitive water flow control valve installed on a water supply pipeline at the end of a sprinkler head of a wet automatic sprinkler system. Background technique [0002] The protection of the building by the wet automatic sprinkler system is mainly due to the timely rupture of the sprinkler head in the fire and the uniform water distribution of the sprinkler head. Due to the complexity of the building structure and interior decoration, if the sprinkler head is installed in a position that is easily affected by fire smoke, the water sprayed by the sprinkler head will be blocked by decoration, pipes, components, etc., affecting the water distribution performance, and even appearing A blank area that cannot be covered; if the sprinkler is installed in a position that will not affect the water distribution, the sprinkler cannot effectively sense the temperature of the fire a...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of timely action of the sprinkler in the sprinkler system and effective sprinkling without being blocked by obstacles by designing a control device

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