Wear-resistant and high-temperature-resistant butterfly valve made of full-forged steel material and manufacturing method thereof

Abstract

The invention discloses a wear-resistant and high-temperature-resistant butterfly valve made of a full-forged steel material. The butterfly valve comprises a pipeline, wherein a butterfly valve body is arranged inside the pipeline; and a box body is fixedly arranged at the top of the pipeline, a transmission cavity and a working cavity located below the transmission cavity are formed inside the box body, and a first rotating shaft penetrating through the pipeline and the bottom of the working cavity is arranged at the top of the butterfly valve body. The wear-resistant and high-temperature-resistant butterfly valve made of the full-forged steel material has the beneficial effects that the butterfly valve is simple in structure and easy and convenient to operate, the rotating speed of a butterfly valve plate can be automatically adjusted according to the current water pressure in the pipeline when people open the valve, so that the water hammer phenomenon caused by too large instantaneous change of pressure inside the pipeline due to too high opening speed of the butterfly valve plate is avoided, pipeline interior bursting and butterfly valve plate abrasion can be prevented, simplicity and efficiency are achieved, convenience and rapidness are achieved, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of butterfly valves, in particular to a full-forged steel butterfly valve made of wear-resistant and high-temperature resistant material and a manufacturing method thereof. Background technique [0002] At present, the butterfly valve, also known as the flap valve, is a regulating valve with simple structure, which can be used for the switch control of low-pressure pipeline medium. A valve that is closed and closed, the valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays the role of cutting and throttling on the pipeline. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjustment. At present, the butterfly valve has the following problems ...

AI Technical Summary

Problems solved by technology

The opening and closing part of the butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjustment. At present, the butterfly valve has the following problems in the use process. Compared with other valves, it can quickly Opening, when the water pressure inside the pipeline is too large, if the valve is opened quickly at this time, the liquid flow rate will change sharply, resulting in significant, repeated and rapid changes in the instantaneous pressure, which is prone to water hammer, which will cause wear on the butterfly valve and the pipeline. In severe cases, the pipeline may burst, etc. At present, there is a need for a butterfly valve that can automatically adjust the opening speed according to the internal water pressure of the pipeline.

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