High-temperature high-pressure temperature-reducing pressure-reducing device capable of being started and stopped rapidly

A technology of high temperature and high pressure, temperature reduction and pressure reduction, which is applied in the direction of valve device, valve heating/cooling device, valve fluid energy absorption device, etc. It can solve the problems of poor safety and reliability, slow opening and closing, and large vibration. To achieve the effect of reliable control, good tightness and small vibration

Inactive Publication Date: 2011-09-14
HANGZHOU WORLDWISE VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional high-temperature, high-pressure, temperature and pressure reduction devices cannot meet the requirements of the process system due to slow opening and closing, high noise, large vibration, and poor safety and reliability.

Method used

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  • High-temperature high-pressure temperature-reducing pressure-reducing device capable of being started and stopped rapidly
  • High-temperature high-pressure temperature-reducing pressure-reducing device capable of being started and stopped rapidly
  • High-temperature high-pressure temperature-reducing pressure-reducing device capable of being started and stopped rapidly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] Example: such as figure 1 , a kind of rapid opening and closing high-temperature, high-pressure, temperature and pressure reduction device, including a pneumatic actuator 16, a steam mixing pipeline 6 connecting a steam inlet 14 and a steam outlet 15, consisting of a valve body 26, a valve core 18, a valve seat 25, and an upper valve cover 24 The pressure reducing valve 1 is formed, wherein the valve core 18 is a valve stem and a valve disc, and the steam mixing pipeline 6 is also provided with a feedwater desuperheating system, a safety protection system and a drainage system.

[0019] Such as figure 2 , wherein the end of pressure reducing valve 1 is provided with porous sound-absorbing cover 27, and between upper valve cover 24 and valve body 26, asbestos thermal ring 23, four-open ring 22 and retaining ring 21 are respectively provided. A sealing packing 19 and a packing spacer 20 are arranged between the upper valve cover 24 and the valve core 18 . A cooling fra...

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PUM

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Abstract

The invention relates to a high-temperature high-pressure temperature-reducing pressure-reducing device capable of being started and stopped rapidly. The device comprises a pneumatic actuating mechanism, a steam mixing pipeline and a pressure-reducing valve, wherein the steam mixing pipeline is connected with a steam inlet and a steam outlet; the pressure-reducing valve is composed of a valve body, a valve plug, a valve seat and an upper valve cover; and a water-supplying temperature-reducing system, a safety protection system and a dewatering system are arranged on the steam mixing pipeline. The device provided by the invention has the beneficial effects that the device is a steam temperature-reducing pressure-reducing system which is connected in parallel with a steam turbine, can introduce steam generated by the boiler to a steam pipeline or a condenser of the next stage pressure and temperature, the device has the functions of rapid starting and stopping, safe overflowing, safe protection and the like, and is mainly applied to industrial fields, such as a thermal power unit, the coal chemical industry and the coal oil.

Description

technical field [0001] The invention relates to the field of large boilers, in particular to a rapid opening and closing high-temperature, high-pressure, temperature and pressure reduction device. Background technique [0002] With the rapid development of modern large-scale boilers, the unit has entered a new era of large-capacity, high-parameter, diversified, and highly automated development. Coal chemical industry, coal oil and other industrial fields need to use large-capacity, high-parameter boiler steam through rapid opening and closing of temperature and pressure reduction devices to meet the needs of process systems. Traditional high-temperature, high-pressure, temperature-reduction and pressure-reduction devices cannot meet the requirements of the process system due to slow opening and closing, high noise, large vibration, and poor safety and reliability. Contents of the invention [0003] The present invention aims to solve the above-mentioned shortcomings of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B37/44F16K47/02F16K49/00
Inventor 陈立龙刘儒亚陈荣斌张明虞闻斌王晖
Owner HANGZHOU WORLDWISE VALVE
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