A Highly Flexible and Strong Erosion Resistant Butterfly Valve

Abstract

The invention provides a strong impact corrosion-resistant butterfly valve with high flexibility and a use method thereof. The strong impact corrosion-resistant butterfly valve comprises a valve body,wherein a drive mechanism is arranged at the surface of the valve body; an outer casing is arranged at the bottom end of the drive mechanism; a first gearbox is arranged at one side of the drive mechanism, a first hand wheel is arranged at one end of the first gearbox, a first butterfly plate is arranged in the outer casing, and a fixed pipe is arranged in the first butterfly plate; the first gearbox is connected with the top end of the fixed pipe through a gear; a second drive shaft is arranged in the fixed pipe; a second hand wheel is arranged at the top end of the second drive shaft; a second gearbox is arranged at the bottom end of the second drive shaft; a first bevel gear is arranged at the outer side of the second drive shaft. The strong impact corrosion-resistant butterfly valve with high flexibility has the advantages that by arranging multiple second butterfly plates, the thickness of the first butterfly plate is at least 6cm, and the valve body is closed by two steps, so that the maximum flow drag of valve close is reduced, and the flexibility of the valve body is improved; the strong impact corrosion-resistant ability of the butterfly valve is improved, so that the application range of the butterfly valve is expanded, and the market competitiveness is improved.

Description

technical field [0001] The invention relates to the field of valve bodies, in particular to a butterfly valve with high flexibility and strong erosion resistance. Background technique [0002] Butterfly valve, also known as flap valve, is a regulating valve with simple structure, which can be used for switch control of low-pressure pipeline medium. of a valve. [0003] Valves 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 that rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjustment. [0004] Butterfly valve is a kind of valve which uses disc type opening and closing parts to turn back and forth about 90° to open, close or adjust the flow of medium. Butterfly valve...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a high-flexibility and strong-erosion-resistant butterfly valve, which solves the problem that most of the current butterfly valves have limited erosion resistance and a small pressure range, which leads to the application range of the butterfly valve. It is too small, and the flow resistance is too large when it is closed, which leads to more energy consumption when it is closed, which brings inconvenience to our life.

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