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High-temperature high-pressure pressure-reducing valve

A high-temperature, high-pressure, pressure-reducing valve technology, which is applied in the direction of lifting valves, valve details, safety valves, etc., to avoid alternating stress, increase the range of pressure reduction, and improve safety and reliability.

Inactive Publication Date: 2009-05-27
HANGZHOU WORLDWISE VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are certain problems in the safety, reliability and regulation performance of traditional high-temperature, high-pressure and pressure-reducing devices

Method used

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  • High-temperature high-pressure pressure-reducing valve
  • High-temperature high-pressure pressure-reducing valve

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0015] Such as Figure 1-2 As shown, this high temperature and high pressure pressure reducing valve is mainly composed of a lever 1, an upper bonnet 2, a valve stem 3, a valve body 4, a valve seat 6 and a lower bonnet 8, and the top of the valve body 4 is in phase with the upper bonnet 2 Connection, the bottom of the valve body 4 is equipped with a lower valve cover 8. The lower valve cover 8 is provided with a water trap 9, which avoids the impact of water hammer in various working conditions. The valve body 4 is a double-spherical structure, the upper small sphere is a high-pressure air intake chamber 13, the lower large sphere is a low-pressure air chamber 14, the high-pressure air intake chamber 13 is connected to the inlet 10, and the low-pressure air chamber 14 is connected to the outlet 11 Pass, the outlet 11 channel area is larger than the inlet 10...

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Abstract

The invention discloses a high temperature high pressure reducing valve, comprising a lever, an upper valve cover, a valve stem, a valve body, a valve seat and a lower valve cover. The top of the valve body is connected with the upper valve cover. The bottom of the valve body is equipped with a lower valve cover. The upper part of the inner cavity of the valve body is a high-pressure admission chamber communicated with the inlet. The lower part of the valve body inner cavity is a low pressure steam chamber communicated with the outlet. A valve seat is arranged on the circulation channel between the high-pressure admission chamber and the low pressure steam chamber. A flap matched with the valve seat is arranged inside. The cross section of the flap is a streamlined structure. When the valve stem moves up and down, the valve seat and flap form a streamlined steam flow path. One end of the flap is connected with one end of the valve stem and the other end of the valve stem is connected with the level. The invention adopts single seat plunger and porous throttling cover two stage pressure reducing structure, reduces the valve leakage rate, increases pressure reducing amplitude and simultaneously the porous throttling cover can reduce noises.

Description

technical field [0001] The invention relates to the field of power station valves, and mainly relates to a high-temperature, high-pressure pressure reducing valve. Background technique [0002] The high temperature and high pressure pressure reducing valve is the core valve of the high temperature and high pressure temperature and pressure reduction device of the power station, and also the main valve of the high pressure bypass. There are certain problems in the traditional high temperature and high pressure decompression device in terms of safety, reliability and regulation performance. The new generation of high temperature and high pressure pressure reducing valve has been greatly improved and perfected in terms of structural design, noise reduction, reliability and cost saving. Contents of the invention [0003] The present invention solves the above-mentioned shortcomings of the prior art, and provides a high-temperature, high-pressure pressure reducing valve with r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/36F16K1/38F16K47/08F16K27/00F16K31/44
Inventor 陈立龙陈卫平王生根张明陈荣斌虞闻斌刘儒亚尤建立
Owner HANGZHOU WORLDWISE VALVE
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