Multi-motor drive built-in valve for large-flow gas meter

Abstract

A multi-motor drive built-in valve for a large-flow gas meter comprises a valve body, a separation plate is arranged in the valve body, a pressure relief hole and a gas passing hole are formed in the separation plate, the diameter of the pressure relief hole is smaller than that of the gas passing hole, an opening opposite to the separation plate is formed in the valve body, an end cover for sealing the opening is arranged on the valve body, valve controllers are arranged on the end cover, the valve controllers comprise motor control parts and valve seals which can seal the pressure relief hole and the gas passing hole, the motor control parts on the valve controllers are all arranged outside the valve body, the valve seals on the valve controllers are arranged in the valve body, and the diameter of the valve seal for sealing the pressure relief hole is smaller than the diameter of the valve seal for sealing the gas passing hole. The multi-motor drive built-in valve has the advantages of being reasonable in structure, low in cost, and convenient to open and saving mounting space, and is suitable for being arranged on various types of large-flow gas meters for use, due to the arrangement of at least two valve controllers, in the valve opening process, the positive pressure action force of gas for the valve can be effectively released, and opening is more convenient and easier.

Description

technical field [0001] The invention relates to a built-in valve of a gas meter, in particular to a multi-motor-driven built-in valve of a large-flow gas meter of more than 16 square meters. Background technique [0002] The gas meter is used to measure the gas consumption. It manages and controls the on-off of the gas through its internal control valve, so as to achieve the purpose of gas usage measurement. The control valve on the existing gas meter depends on the installation position. It is divided into two types: built-in valve and external valve. The external valve refers to the valve installed outside the gas meter to control the on-off of gas. It is mainly used on the gas meter with large ventilation. It is installed and used on a large-flow gas meter, so it is not conducive to the large-scale promotion and sales of existing industrial gas meters. The built-in valve refers to the valve installed in the gas meter to control the gas on and off. It is mainly used on t...

AI Technical Summary

Problems solved by technology

However, if the existing built-in valve is installed on a gas meter with a large ventilation volume, since the gas meter has a large ventilation volume, after the built-in valve is closed, the gas pressure will fully act on the valve seal, causing the valve seal to withstand a large air pressure. , It is difficult to pull the valve seal to open the valve through the power of the motor, which is inconvenient to operate and use

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