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Valve of sealing arrangement in two stages

A technology for sealing devices and valves, which is applied to valve devices, lift valves, engine components, etc., and can solve problems such as poor operation stability, poor versatility, and high noise

Inactive Publication Date: 2006-07-05
SHANGHAI SHANGLONG VALVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the use of a single-stage sealing device, the existing valves have small adjustable ranges of pressure and flow, poor operational stability, high noise, large water hammer, large full-flow resistance, low flow capacity, and few variable functions. Many defects such as poor versatility and small scope of use

Method used

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  • Valve of sealing arrangement in two stages

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Embodiment Construction

[0006] Referring to the accompanying drawings, the present invention is composed of a valve body 1, a first sealing device 2, a second sealing device 3, a connecting device 4, a spring 5 and a flow guiding device 6, wherein the valve body 1 is composed of a housing 11, a longitudinal rib 12, The fixed sleeve 13 is composed of the shell 11 and the fixed sleeve 13, which are connected by longitudinal ribs 12 to form an annular middle passage; the first sealing device 2 is arranged at the inlet section of the valve body 1, and the valve fixed on the valve body The seat 21 and the valve disc 22 arranged in the valve body fixing sleeve 13 are composed; the second sealing device 3 is arranged at the outlet section of the valve body 1, and the valve disc 31 arranged in the valve body and the valve seat 32 fixed on the valve body Composition, the valve flow channel is divided into an inlet section, an intermediate section and an outlet section; the valve flap 22 of the first sealing de...

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Abstract

A valve with double stages of seal device is composed of valve body, connection unit, spring and flow guide unit. It is featured as setting the first seal device at inlet section of valve body and the second seal device at outlet section of valve body, connecting valve clack of the first seal device to valve clack of the second seal device by connection unit. The said valve can not only be used on pressure control, flow rate control and flow direction control but also can be used on water level control, temperature control, multiloop control, electromagnetic ¿C automatic control, etc.

Description

Technical field: [0001] The invention relates to a valve, in particular to a valve with double-stage sealing. Background technique: [0002] Due to the single-stage sealing device used in the existing valves, the adjustable range of pressure and flow is small, the operation stability is poor, the noise is large, the water hammer is large, the full flow resistance is large, the flow capacity is low, and the variable function is few. There are many defects such as poor versatility and small scope of use. Invention content: [0003] The technical problem to be solved by the present invention is to provide a double-stage sealing valve with reliable sealing performance, small water hammer and small fluid resistance, which can effectively overcome the above-mentioned defects. The technical solution adopted by the present invention to solve the technical problem is that a valve with a double-stage sealing device is mainly composed of a valve body, a connecting device, a spring a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/44
Inventor 季能平
Owner SHANGHAI SHANGLONG VALVE FACTORY
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