Micro-acoustic check valve
A technology of check valve and valve body, which is applied in the direction of valve details, control valves, valve devices, etc., can solve the problems that affect the life of check valves and pipelines, the pressure inside the pipeline rises, and the impact force of the valve disc is large, so as to prolong the service life , Eliminate water hammer and reduce impact
Active Publication Date: 2017-01-18
GONGNAI VALVE CO LTD
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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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[0024] see figure 2 , the present invention relates to a micro-acoustic check valve, comprising a valve body 1 and a valve cover 7, the valve body is provided with a medium inlet 4 and a medium outlet 5, the medium inlet and the medium outlet are both connected to the The valve cavity 8 in the valve body is connected, the valve cavity is open and the valve cover is installed at the opening, a valve stem 3 is arranged in the valve cavity, and a valve disc 2 is sleeved on the valve stem. The connection between the medium inlet and the medium outlet is the connection port 6, and the valve disc is sealed with the connection port.
[0025] see image 3 , it should be noted that the present invention needs to be installed on the pipeline during actual use, the medium inlet channel of the micro-acoustic check valve is connected with the inlet pipeline 9, the medium outlet channel of the micro-acoustic check valve 12 is connected with the outlet pipeline 10, And a valve 11 is insta...
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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 ...
Claims
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IPC IPC(8): F16K15/06F16K47/02
CPCF16K15/06F16K47/02
Inventor 陈春景
Owner GONGNAI VALVE CO LTD