Low type bidirectional pressure regulating tower

Abstract

The invention discloses a low type bidirectional pressure regulating tower which comprises an upper case body and a lower case body with a seal ring, the lower case body is provided with a movement control assembly and a fixing tower ring with a seal ring, the movement control assembly is composed of a diaphragm pressboard, a control diaphragm, a guide piston, a spring, a piston rod and a one-way seal board. The control diaphragm is tightly pressed on the guide piston by the diaphragm pressboard, and the peripheral edge of the control diaphragm is tightly pressed on the lower case body by the upper case body, the one-way seal board is fixedly coupled with the piston rod integrally, and the lower end surface of the one-way seal board pressed on the seal valve seat of the guide piston by a spring baffle and the spring, while the upper end surface of the one-way seal board is pressed on the fixing tower ring. By arranging the guide piston, the invention can greatly lower the height of the bidirectional pressure regulating tower which must be arranged according to the height of the water line, save the engineering cost, lower or eliminate the water hammer pressure rising in the pipe, thereby preventing the pressure pipe from damage caused by bearing overhigh water pressure, or supplementing the collapsing cavity possibly generated by negative pressure to prevent the possible water hammer due to cavity collapsing.

Description

technical field [0001] The invention relates to a pressure stabilizing device in a water delivery or liquid delivery pressure pipeline, in particular to a low-type two-way pressure regulating tower generally used on a pressure water delivery pipeline or a pressure water diversion pipeline of a hydraulic generator. Background technique [0002] The original two-way surge tower has been widely used in water conservancy and hydropower projects and urban water supply systems. It is known as one of the most reliable methods among all water hammer protection measures and has made great contributions to the safety of pressure water pipelines. contribute. However, the two-way surge tower also has a fatal shortcoming in engineering applications, that is, its height must be higher than or equal to the highest water pressure line of the pipeline where it is installed. If the pipeline pressure is not high, generally there is no need to install a two-way surge tower. If the pipeline pre...

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Problems solved by technology

However, the two-way surge tower also has a fatal shortcoming in engineering applications, that is, its height must be higher than or equal to the highest water pressure line of the pipeline where it is installed. If the pipeline pressure is not high, generally there is no need to install a two-way surge tower. If the pipeline pressure is very high, it is most necessary to install a two-way surge tower, but at this time the water pressure line is very high, so the two-way pressure regulation is also very high, often up to tens of meters or even hundreds of meters, which makes the project cost high. The burden of management is increased, it is difficult to coordinate with the surrounding environment, and it is also difficult to ensure the safety of the structure itself

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