Valve applicable to conveying of high-pressure gas

Abstract

The invention relates to a valve applicable to conveying of high-pressure gas. The valve comprises a valve body composed of a transverse structure and a vertical structure. The vertical structure is fixedly connected to the center of the transverse structure. The transverse structure and the vertical structure are arranged in an inverted-T shape. The height of the transverse structure is greater than that of the vertical structure. A through hole is formed in the direction of the central axis of the valve body. An interval is formed between the bottom end of the through hole and the bottom ofthe valve body. A valve element is mounted in the through hole. A valve rod is fixedly connected with the top of the valve element. A valve body inlet channel and a valve body outlet channel are formed in the parts, located in the two sides of the through hole, in the transverse structure correspondingly. The valve body inlet channel and the valve body outlet channel are formed in a wavy shape andcommunicate with the through hole. An intersection is formed by the valve body inlet channel, the valve body outlet channel and the through hole. The height of the valve element is equal to that of the intersection. In the valve closing and opening processes, the inner pressure of the valve element is lowered, and the service life of the valve is prolonged.

Description

technical field [0001] The invention relates to a valve suitable for conveying high-pressure gas, which belongs to the field of valves. Background technique [0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to its function, it can be divided into shut-off valve, check valve, regulating valve and so on. [0003] The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems range from the simplest cut-off valves to various valves used in extremely complex automatic control systems, with a wide variety of varieties and specifications. [0004] Valves can be used to control the flow of various types of fluids such as air, water, steam, ...

AI Technical Summary

Problems solved by technology

When the gas cylinder is deflated and used to the set pressure, the valve can be automatically closed to prevent the air from entering the cylinder after the gas in the cylinder is completely used up, so as to ensure the purity of the gas in the cylinder, and there is no need to carry out the gas cylinder when inflating. Vacuum treatment saves production cost; however, during the closing and opening process of the above-mentioned valve, the spool will be subjected to the side pressure of the working medium, which makes the power torque required for closing and opening large, resulting in a huge power mechanism for it , resulting in easy wear, short service life, reduced reliability and high maintenance costs

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