Chinese butterfly valve principle analysis: Rotate 90 degrees to achieve fluid control

Chinese butterfly valve principle analysis: Rotate 90 degrees to achieve fluid control

Chinese butterfly valves, also known as butterfly check valves or flap valves, are a common type of fluid control equipment. Its working principle is simple and unique, through the action of rotating 90 degrees, you can effectively control the flow of fluid. This article will conduct in-depth analysis of the principle of Chinese butterfly valve from a professional point of view.

1. The basic structure of Chinese butterfly valve

Chinese butterfly valve is mainly composed of two parts: the valve body and the valve plate. The valve body is usually round or square, with internal channels for fluid to pass through. The valve plate is a butterfly structure, when the valve plate is rotated 90 degrees, the channel will be completely closed, preventing the flow of fluid.

2. Working principle of Chinese butterfly valve

The working principle of Chinese butterfly valve is quite intuitive. When the current passes through the electric actuator, the stem drives the valve plate to rotate 90 degrees, the channel of the valve plate will form a sealed state with the channel of the pipe. At this point, if you continue to input fluid into the pipe, because the channel is completely closed, the fluid can not continue to flow. On the other hand, if you want to restore the flow of fluid, just turn off the power and then rotate the valve plate again.

3. Advantages of Chinese butterfly valve

The main advantages of Chinese butterfly valve are simple structure, easy operation, good sealing and low maintenance cost. Because of its simple structure, it is convenient to install and maintain. At the same time, because of the good sealing of the Chinese butterfly valve, it has a good performance in fluid control. In addition, the relatively low price of China’s butterfly valve is also an important reason for its wide application.

4. Application range of Chinese butterfly valve

Butterfly valves are widely used in various fluid systems in petroleum, chemical, metallurgy, electric power and other industries. For example, in the petrochemical industry, butterfly valves are often used to regulate the flow of various liquids and gases; In the power industry, Chinese butterfly valves are often used to regulate the flow of cooling water and steam.

conclusion

In general, the Chinese butterfly valve is a very practical fluid control equipment. It realizes efficient fluid control function through simple structure. Whether in industrial production or in daily life, we can see the figure of Chinese butterfly valves. Therefore, it is very important for us to understand and master the working principle and use of Chinese butterfly valves.