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Ceramic seal vertical check valve

A ceramic sealing and check valve technology, applied in lift valves, control valves, valve devices, etc., can solve the problems of low wear resistance and corrosion resistance of the sealing surface, improve wear resistance and sealing performance, and reduce impact. , the effect of improving the service life

Pending Publication Date: 2020-09-25
JIANGSU YUTONG SPECIAL PIPE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a ceramic-sealed vertical check valve, which solves the problem of wear resistance of the sealing surface of the disc and the valve seat of the existing ceramic-sealed vertical check valve proposed in the above-mentioned background technology. Problems with low performance and corrosion resistance

Method used

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  • Ceramic seal vertical check valve
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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0025] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orien...

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Abstract

The invention discloses a ceramic seal vertical check valve, and relates to the technical field of check valves. The ceramic seal vertical check valve comprises a valve body. The upper surface of thevalve body is fixedly connected with an upper valve deck, a water outlet is formed in the middle of the upper valve deck, the lower surface of the valve body is fixedly connected with a lower valve deck, a water inlet is formed in the middle of the lower valve deck, the inner wall of the lower end of the valve body is fixedly connected with a valve seat, the valve seat is shaped like a Chinese character 'tu', a convex portion of the valve seat is upward, and a valve seat ceramic sealing ring is inlaid into the upper surface of the valve seat. A valve clack ceramic sealing ring is inlaid into the lower surface of a valve clack, the lower surface of the valve clack ceramic sealing ring is fixedly connected with a boss, the valve seat ceramic sealing ring is inlaid into the upper surface of the valve seat, a groove is formed in the valve seat ceramic sealing ring, the boss is matched with the groove, the wearproof performance and the sealing performance of the valve clack and the valve seat are improved, and as ceramic has high strength and corrosion resistance, the service life of the check valve is prolonged.

Description

technical field [0001] The invention relates to the technical field of check valves, in particular to a ceramic-sealed vertical check valve. Background technique [0002] The working principle of the vertical check valve: Under the pressure of the medium at the inlet end of the pipeline, the spring resistance is overcome to make the valve open or close. When the medium pressure at the inlet end is lower than that at the outlet end, the spring pushes the valve core to the valve seat to close the valve, preventing the medium from flowing backward and playing a check role. Vertical check valves are widely used in electric power, petrochemical, metallurgy and other industries. At present, the vertical check valves on the market are under some wear and corrosion working conditions. After a long period of wear and corrosion on the sealing surface of the valve disc and the valve seat, the sealing performance is reduced, and leakage is prone to occur. In serious cases It will wear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/06F16K1/46F16K1/32F16F15/08
CPCF16F15/08F16K1/32F16K1/46F16K15/063
Inventor 衡步俊
Owner JIANGSU YUTONG SPECIAL PIPE IND CO LTD