Three sets of elastic self-sealing safety valves

A self-sealing, safety valve technology, applied in the direction of safety valves, balance valves, valve devices, etc., can solve problems such as unstable valve action performance, failure to meet standard requirements, and large user feedback, to achieve easy action repeatability, stability, The action repeatability is stable and reliable, and the effect of improving the adjustment sensitivity

Active Publication Date: 2016-07-20
KAIFENG RUIFA HIGH & MIDDLE PRESSURE VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the working temperature of the medium is higher than 300°C, the action performance of the valve is very unstable and cannot meet the standard requirements; and the seal is also easy to leak, and users have relatively large opinions

Method used

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  • Three sets of elastic self-sealing safety valves
  • Three sets of elastic self-sealing safety valves
  • Three sets of elastic self-sealing safety valves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, three sets of elastic self-sealing safety valves of the present invention include a valve cover 1, a valve body 2, a valve seat 3, a valve disc 4, a guide cylinder 5, a sleeve 6, a lower cooling fin 7, an upper cooling fin 31 and a valve Rod 8, described bonnet 1 is provided with upper spring seat 9, lower spring seat 10 and the spring 11 that two ends are respectively inserted into upper spring seat 9, lower spring seat 10, described upper spring seat 9, spring 11, The lower spring seat 10 is threaded on the outside of the valve stem 8 in sequence, the valve cover 1, the upper cooling fin 31, the lower cooling fin 7, and the valve body 2 are fixedly connected by bolts in turn, and the valve seat 3 is placed in the valve body 2 and located on the valve body. At the lower end of the body 2, the guide cylinder 5 is fixed at the junction of the lower cooling fin 7 and the valve body 2, the guide cylinder 5 ...

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Abstract

Three sets of elastic self-sealing safety valves, including bonnet, valve body, valve seat, valve disc, guide sleeve, sleeve, lower cooling fin, upper cooling fin and valve stem. Blow sleeve, the lower end surface of the blow-proof sleeve is provided with a circular groove, the upper surface of the lower heat sink is provided with a retaining ring that can be inserted into the groove, and the inner side of the lower end surface of the blow-proof sleeve is provided. The sealing cylinder of the inner ring of the disc; the valve stem is provided with a limit sleeve located under the lower heat sink and a lock sleeve that is crimped with the upper surface of the valve disc; The lower surface of the valve disc is provided with an annular pressure-bearing groove, and the lower surface of the valve disc is provided with an elastic sealing ring outside the pressure-bearing groove. The invention has reasonable design, high valve sealing performance, high valve stem lifting guide and vertical stability, high adjustment sensitivity, good performance and stability of valve opening, take-off, reseating, and is especially suitable for harsh working conditions such as high pressure and high temperature. .

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to a three-set elastic self-sealing safety valve. Background technique [0002] The safety valve is a valve for safety protection. Its opening and closing parts are in a normally closed state under the action of external force. When the medium pressure in the equipment or pipeline rises and exceeds the specified value, it will automatically open. The medium pressure in the pipeline or equipment exceeds the specified value. Safety valves are automatic valves, mainly used in gas, liquid and heat pipe network systems, as steam boilers, pressure vessels, pipelines, control medium pressure does not exceed the specified value, and play an important role in protecting personal safety and equipment operation. [0003] The existing spring full-lift safety valve with cooling fins used in thermal systems, steam boilers, pressure steam containers, and pipelines has a simple structure, the valve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/164
CPCF16K17/164
Inventor 王德立李红超王瑞卿
Owner KAIFENG RUIFA HIGH & MIDDLE PRESSURE VALVE
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