Micro sound check valve

Abstract

The invention relates to a micro sound check valve. The micro sound check valve comprises a valve body and a valve deck. A medium inlet channel and a medium outlet channel are formed inside the valve body and communicated with a valve cavity inside the valve body. An opening is formed in the valve cavity and provided with the valve deck, a valve rod is arranged inside the valve cavity and sleeved with a valve clack, the connecting position of the medium inlet channel and the medium outlet channel is a connector, and the valve clack and the connector are sealed. A water hammer can be effectively eliminated, and in this way, it is guaranteed that the performance and the sealing effect of the valve are better, and the service life of the valve is longer.

Description

technical field [0001] The invention relates to a micro-sound check valve, which belongs to the field of valves. Background technique [0002] Water hammer pressure refers to the flow of water in a long pipeline. At this time, if the valve downstream of the pipeline is quickly closed, the flow of water has inertial momentum, so the inertial momentum of water flow continues to push forward, causing the pressure in the pipe to rise rapidly. , causing a certain pressure on the valve body and pipeline, thus causing damage. [0003] Due to the existing check valve ( figure 1 Shown), there is a spring on the valve stem in the valve cavity, and the spring bears on the valve disc 2, so that the valve disc is sealed with the connection port 6. On the premise of opening the inlet pipe, the medium enters the valve cavity from the medium inlet, and Open the valve disc to compress the spring, so that the medium enters the medium outlet. During this process, the medium has to withstand ...

AI Technical Summary

Problems solved by technology

[0002] Water hammer pressure refers to the flow of water in a long pipeline. At this time, if the valve downstream of the pipeline is quickly closed, the flow of water has inertial momentum, so the inertial momentum of water flow continues to push forward, causing the pressure in the pipe to rise rapidly. , causing a certain pressure on the valve body and pipeline, thus causing damage

[0003] Due to the existing check valve ( figure 1 Shown), there is a spring on the valve stem in the valve cavity, and the spring bears on the valve disc 2, so that the valve disc is sealed with the connection port 6. On the premise of opening the inlet pipe, the medium enters the valve cavity from the medium inlet, and Open the valve disc to compress the spring, so that the medium enters the medium outlet. During this process, the medium has to withstand the pressure of the spring to open the valve disc. Therefore, the impact force of the medium on the valve disc is relatively large, resulting in water leakage. Hammer phenomenon, similarly, when closing the valve of the inlet pipeline, because there is no inflow medium, the valve disc and the connection port are sealed under the action of the spring. Large water hammer, the phenomenon of water hammer seriously affects the life of check valves and pipelines

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