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Saturated steam valve

A valve and steam technology, applied in the direction of valve lift, valve details, valve device, etc., can solve the problems of poor sealing, medium leakage, short life, etc., achieve excellent temperature resistance and corrosion resistance, and small hard seal joint surface , the effect of good resilience

Inactive Publication Date: 2019-01-08
DALIAN REALLY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of seal has simple structure and low cost, but poor sealing performance, short life and frequent replacement
Leakage of seals can easily cause medium leakage, affecting the safety of equipment and operators

Method used

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  • Saturated steam valve
  • Saturated steam valve
  • Saturated steam valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] Attached below Figure 1-3 The specific embodiment of the present invention will be further described.

[0023] A valve for saturated steam, including a left end cover 1, a bushing 2, a spool 5, a cylinder 6 and a right end cover 9; a spool 5 is slidably installed in the cylinder 6 through a second pan seal 14, and the left side of the spool 5 A spring 4, a spring seat 3, a bushing 2, and a left end cap 1 are installed in turn, and the valve core 5 is duplex stainless steel, and the right side of the valve core 5 is successively fitted with a bushing 2 and a right end cap 9; the bushing 2 and the cylinder barrel 6 Fitting through the spigot and sealing with the third vari-seal 15, sealing between the bush 2 and the valve core 5 through the fourth vari-seal 16 and O-ring 12, both sides of the bush 2 are provided with a fourth vari-seal Seal 16, the O-ring 12 is located between the two fourth pan-seals 16, one side of the O-ring 12 is provided with a retaining ring 13, t...

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PUM

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Abstract

The invention discloses a saturated steam valve. A valve element is installed in a cylinder barrel in a sliding manner through a second spring seal. The left side of the valve element is sequentiallysleeved with a spring, a spring seat, a lining and a left end cover. The right side of the valve element is sequentially sleeved with a lining and a right end cover. Each lining and the cylinder barrel are matched with each other through a seam allowance and sealed through a third spring seal. Each lining and the valve element are sealed through fourth spring seals and an O ring. The linings are both matched with the left end cover and the right end cover through seal allowances, and seal between the linings and the left and right end covers are achieved through first spring seals. A seal gasket is installed in the right end cover. The seal gasket and the end face of the valve element are sealed. The saturated steam valve adopts the structures of the spring seals and the O rings, and airtight seal between the seal pieces and the valve element and between the seal pieces and the linings can be guaranteed; the hard seal combination face between the dual-phase stainless steel valve element and the red copper seal gasket is small and good in rebound resilience, has excellent temperature resistance, corrosion resistance and the like, and it can be guaranteed that the valve is reliably opened and closed and free of internal leakage.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a valve for saturated steam. Background technique [0002] Coaxial control valve is a kind of stop valve in fluid control engineering, which is widely used. It adopts the coaxial installation method of the fluid flow channel and the pipeline to minimize the pressure loss, reduce the resistance, and make the on and off quickly. [0003] At present, the stop valves commonly used in saturated steam pipelines are generally ball valves, butterfly valves, solenoid valves, etc. Under the working condition of high-pressure medium, the on-off of this type of valve is slow, which affects the equipment process and does not timely control the on-off of the fluid medium in the pipeline, causing downstream equipment failures and potential safety hazards; the sealing pair of this type of valve has a large joint surface , under the condition of high-pressure medium, a large power actuator is re...

Claims

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Application Information

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IPC IPC(8): F16K1/32F16K1/38F16K1/46F16K27/02F16K31/122
CPCF16K1/32F16K1/385F16K1/46F16K27/0254F16K31/1221
Inventor 于洋
Owner DALIAN REALLY TECH
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