Balancing valve and pressure system

Abstract

The invention discloses a balancing valve which comprises a valve body and a valve core, wherein the valve core is arranged in the valve body and can open or close a medium inlet of the valve body, and the other side (away from the medium inlet) of the valve core is provided with a cavity; a channel communicated with the outside of the cavity is arranged on the wall of the cavity, and an opening (on the wall of the cavity) of the channel is located on the outer side of the maximum opening stroke position of the valve core. As the opening (on the wall of the cavity) of the channel communicated with the outside of the cavity in the balancing valve is located on the outer side of the maximum opening stroke position of the valve core, in the process that the valve core is opened, a medium in the cavity can flow out of the cavity smoothly through the channel, so that the smooth stable opening of the valve core is facilitated, and the force exerted on the upper end part of the valve body can be reduced, thereby facilitating the safe and reliable operation of the balancing valve and improving the service life of the balancing valve. In addition, the invention also provides a pressure system comprising the balancing valve above.

Description

technical field [0001] The invention relates to the technical field of pressure control, in particular to a balance valve. The invention also relates to a pressure system with a balancing valve as described above. Background technique [0002] The balance valve is an automatic valve. In some industries, due to the high pressure of the medium (all kinds of flowable substances) in various parts of the pipeline or container, in order to protect the safety of the equipment, it needs to be installed between the corresponding pipelines or containers. Set the balancing valve. [0003] The balance valve can discharge a certain amount of fluid or gas only by the force of the medium itself without any external force, so as to prevent the pressure in the system from exceeding the predetermined safety value. When the pressure returns to normal, it will close itself and prevent the medium from continuing to flow out. [0004] Please refer to figure 1 , figure 1 It is a structural sch...

AI Technical Summary

Problems solved by technology

[0009] Moreover, when the matching gap between the valve core 2 and the valve body 1 is relatively large, during the rising process of the valve core 2, due to the pressure of the medium inside the cavity, the valve core 2 is prone to unstable movement, which affects the reliable use of the product

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