This patent was applied for by Beijing Huachuang Langrun Environmental Technology Co., Ltd. and was granted authorization on March 15, 2017.

Content Description

The present invention relates to the field of valve technology, particularly to a large-diameter gas medium electric valve.

Background of Invention

There are various types of valves in the existing technology, such as ball valves, butterfly valves, gate valves, etc. These valves, such as ball valves and butterfly valves, are mainly used for liquid gate control. They are bulky, expensive, and have insufficient sealing performance when used for gas gate control. Gate valves are used for opening and closing gas fluids, but due to structural reasons, they cannot achieve sealing function at all, and large-diameter valves are rare and expensive.

Invention content

The present invention proposes a large-diameter gas medium electric valve, which is applied to gas channel sealing. Compared with ball valves, butterfly valves, and gate valves, it is not only lighter, but also greatly improves the sealing performance of the valve. It can be used to produce various large-diameter valves, suitable for various ventilation pipelines, and completely solves the technical problem of gate valves being unable to achieve sealing in gas fluids, especially large-diameter valves.

The technical solution of the present invention is implemented as follows:

A large-diameter gas medium electric valve, comprising an outer shell, wherein a substrate and an auxiliary substrate are respectively installed on the outer shell. The substrate is set above the auxiliary substrate, and a ventilation port is provided on the substrate. There are several guide columns between the substrate and the auxiliary substrate, and a pressure plate and a gate plate for controlling the opening and closing of the ventilation port are slidably installed on the guide columns. An elastic element is provided between the pressure plate and the gate plate, and a linear driving device is connected to the pressure plate to drive its up and down reciprocating motion. The pressure plate is equipped with an upper limit position sensor for detecting the relative position between the pressure plate and the gate plate, and the auxiliary substrate is equipped with a lower limit position sensor for detecting the relative position between the pressure plate and the auxiliary substrate.