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Special non-return valve for high-level water supply

A high-rise water supply and check valve technology, applied in the direction of control valve, valve device, functional valve type, etc., can solve problems such as easy damage to facilities, strong vibration and noise of the pipe network, affecting normal operation, etc.

Inactive Publication Date: 2011-05-11
许洪若
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, in the high-level water supply pipeline network in the field of water supply and drainage and urban facilities construction, when the water pump stops supplying water, the high-pressure water flows back quickly, the butterfly plate closes quickly, and destructive water hammer occurs. The pipeline network generates strong vibration and noise, and the facilities are easily damaged. Affect normal operation

Method used

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  • Special non-return valve for high-level water supply
  • Special non-return valve for high-level water supply

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Embodiment Construction

[0005] The preferred modes of the present invention will be further described below in conjunction with the accompanying drawings. see figure 1 It can be seen that the present invention is mainly composed of valve body 1, valve seat 2, valve flap 3, sealing rings (4, 5) and damping chamber 6 and other components. The valve seat 2 is installed on the valve body 1 and is sealed by a sealing ring 4 . A damping chamber 6 is provided in the inner cavity of the valve body 1 , and the rod of the valve flap 3 is installed in the damping chamber 6 , and is sealed by a sealing ring 5 .

[0006] When the water pump is turned on, the valve disc 3 moves up, and the water flows away from the valve seat 2. When the water pump stops, the backflow of water makes the valve disc 3 move down slowly under the action of the damping chamber 6, and contacts and seals with the valve seat 2, so as to stop the backflow of water.

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Abstract

The invention discloses a special non-return valve for high-level water supply. The special non-return valve mainly comprises a valve body, a valve seat, a valve clack, sealing rings, a dampening chamber, and the like, wherein the dampening chamber is arranged in the inner chamber of the valve body; a rod of the valve clack 3 is installed in the dampening chamber 6, and is sealed through the sealing ring 5; a valve clack shaft is installed in the dampening chamber, and is sealed through the sealing ring; and the valve seat is installed on the valve body, and is sealed through the other sealing ring. When a water pump is turned on and the valve clack shifts upward, because of the damping action, and the valve clack is opened slowly. When the water pump is turned off, the valve clack shifts downward and is closed, because of damping action, the closure speed of the valve clack is limited, the valve clack is closed slowly, thus water refluxing is cut off, and a destructible water hammer is eliminated. Because the technical solution scheme is adopted, the special non-return valve for high-level water supply has the advantages of simple structure, safe and stable operation, no noise, elimination of the water hammer, and the like, and is convenient to install.

Description

[0001] 1. Technical field: The present invention relates to the technical field of valves, in particular to a special check valve for high-rise water supply. 2. Background technology: [0002] At present, in the high-level water supply pipeline network in the field of water supply and drainage and urban facilities construction, when the water pump stops supplying water, the high-pressure water flows back quickly, the butterfly plate closes quickly, and destructive water hammer occurs. The pipeline network generates strong vibration and noise, and the facilities are easily damaged. affect normal operation. The invention aims to provide a special check valve for high-rise water supply, which can stop water backflow and eliminate destructive water hammer. 3. Contents of the invention: [0003] The technical problem to be solved by the invention is that the reverse flow of the existing high-rise water supply medium produces destructive water hammer. For this reason, the present...

Claims

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Application Information

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IPC IPC(8): F16K15/06
Inventor 许洪若
Owner 许洪若