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Valve device having anti-corrosion function

A valve device and anti-corrosion technology, which is applied to valve devices, diaphragm valves, engine components, etc., can solve problems such as corrosion, achieve flexible operation, and improve service life

Active Publication Date: 2017-05-10
太原鲲航物联科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the connecting thread of the existing stop valve is easily corroded due to direct contact with the medium, the present invention further provides a valve device with anti-corrosion function

Method used

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  • Valve device having anti-corrosion function
  • Valve device having anti-corrosion function
  • Valve device having anti-corrosion function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] like figure 1 As shown, the separating device adopts a single-piece elastic spacer, the transition connector 7 is fixedly connected to the center of the upper end surface of the elastic spacer 3, and the top of the disc valve lifting rod 5 is vertically fixedly connected to the center of the lower end surface of the elastic spacer 3, The outer end of the elastic spacer 3 is fixedly connected with the valve seat 4 by bolts.

[0037] When the lifting and lowering lever is rotated, the center of the elastic spacer is lifted up, and the spacer is deformed. At the same time, the elastic spacer is lifted up to make the disc valve lifting rod separate from the water inlet of the valve seat, so that the medium can flow, such as figure 2 As shown; in the same way, press down the lifting rod to make the disc valve lifting rod block the water inlet of the valve seat and close the flow of the medium, such as image 3 shown. When the valve is working, the medium is always flowing...

Embodiment 2

[0039] like Figure 4 As shown, the partition device adopts a multi-piece elastic spacer structure, including several layers of steel sheets 9 that are superimposed in contact with each other from top to bottom and whose diameter increases layer by layer. The transition connector 7 is fixedly connected to the top steel sheet 9. In the center of the end face, an elastic gasket 10 is provided below the bottom steel sheet 9, and both the steel sheet 9 and the elastic gasket 10 are vertically installed on the disc valve lifting rod 5, and the outer end of the elastic gasket 10 is fixed to the valve seat 4 by bolts connect, Figure 4 The device indicates that the disc valve lifting rod blocks the water inlet of the valve seat.

[0040] When the lifting and lowering rod is rotated, the transition connecting piece drives the steel sheet to move up, thereby deforming the elastic gasket, separating the lifting rod of the disc valve from the water inlet of the valve seat, and allowing ...

Embodiment 3

[0042] like Image 6 As shown, the separation device adopts an expansion joint, the transition connector 7 is fixedly connected to the center of the upper end surface of the expansion joint 11, the top of the disc valve lifting rod 5 is vertically fixedly connected to the center of the lower end surface of the expansion joint 8, and the outer end of the expansion joint 8 is connected to the center of the lower end surface of the expansion joint 8. The valve seat 4 is fixedly connected by bolts.

[0043] When the lifting and lowering rod is rotated, the expansion and contraction is driven by the transition connector to deform and stretch upwards, so that the disc valve lifting rod is separated from the water inlet of the valve seat, so that the medium can circulate, such as Figure 7 shown. In the same way, when the lifting lever is rotated, the expansion and contraction will be deformed and stretched downward, so that the lifting lever of the disc valve will block the water i...

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Abstract

The invention belongs to the technical field of water flow control valves, aims at solving the problem that an existing stop valve is connected with a screw thread and is easily corroded due to direct contact with a medium and provides a valve device having an anti-corrosion function. The valve device comprises a valve rod and a valve seat, wherein the inner cavity of the valve seat is divided into an upper cavity and a lower cavity which are mutually independent and sealed through a transversely-arranged elastic separating device, the valve rod comprises a lifting rod and a valve flap and valve lifting rod which are coaxial and sectioned, the lifting rod is vertically arranged on the upper cavity of the valve seat and is connected with the elastic separating device to form a rotating pair, the valve flap and valve lifting rod is vertically arranged in the lower cavity of the valve seat, the outer side face of the elastic separating device is fixedly connected with the valve seat, and the valve flap and valve lifting rod vertically moves with the lifting rod through deformation of the elastic separating device. The inner cavity of the valve is divided into the two cavities which are vertically independent and sealed by utilizing the elastic separating device, a medium flows in the lower cavity of the valve seat, the problem that the valve rod of the valve is corroded by the medium is solved fundamentally, and the service life of the valve is prolonged.

Description

technical field [0001] The invention belongs to the technical field of valves for controlling water flow, and in particular relates to a valve device with anti-corrosion function. Background technique [0002] The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. Because the valve stem and sealing ring of the existing valve are in direct contact with the medium, under the long-term action of the medium, it will cause corrosion and aging, affect the sealing performance of the valve, and reduce the service life of the valve. Especially when the valve is used in a corrosive medium environment or an environment with a lot of impurities, the corrosion and wear of the valve stem and sealing ring is particularly obvious. In order to solve the problem of corrosion and wear of the valve, the current solution is to use c...

Claims

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Application Information

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IPC IPC(8): F16K7/12
CPCF16K7/12
Inventor 王六十一王首阳赵翠芳王首星
Owner 太原鲲航物联科技有限公司
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