燃煤机组熔盐储热高温高压蒸汽调节阀选型研究

李晓明; 廖海燕; 张弛; 丁涛; 廖世伟; 倪宏宁; 褚景春

doi:10.19666/j.rlfd.202509020

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燃煤机组熔盐储热高温高压蒸汽调节阀选型研究

Thermal Power Generation Vol. 55, Issue 2, Pages: 58-64(2026)

更新时间：2026-08-07

- 燃煤机组熔盐储热高温高压蒸汽调节阀选型研究
- 作者机构：
  
  1. 国家能源集团新能源技术研究院有限公司
  2. 哈尔滨滨大阀门制造有限公司
  3. 国能宿州热电有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202509020
  CLC： TM621
- Published：2026
- 稿件说明：
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[1]李晓明,廖海燕,张弛,等.燃煤机组熔盐储热高温高压蒸汽调节阀选型研究[J].热力发电,2026,55(02):58-64.
[1]李晓明,廖海燕,张弛,等.燃煤机组熔盐储热高温高压蒸汽调节阀选型研究[J].热力发电,2026,55(02):58-64. DOI： 10.19666/j.rlfd.202509020.

DOI：10.19666/j.rlfd.202509020.

摘要

针对高温高压蒸汽调节阀在蒸汽加热熔盐储热系统中需承受高温、高压、高压差，且需频繁、高精度调节的设计制造难题，以某蒸汽加热熔盐储热示范工程为研究对象，结合高温高压蒸汽调节阀的实际应用需求，对其不同选型工况下的通流能力展开系统的计算与分析，提出在调节阀不同开度区间设计不同节流降压级数的技术方案。该方案有效实现了阀门在全工况下的良好适应性，能够精准匹配系统在不同运行阶段的调节需求，显著提升了调节精度。当上游蒸汽流速较低时，推荐采用蒸汽辅助雾化喷嘴，可以使减温水雾化颗粒更加细密，雾化效果更好，减少对管路的热冲击、热应力，保证了减温后设备的安全。梳理了高温高压蒸汽调节阀选型过程中的关键注意事项，可为后续同类蒸汽加热熔盐储热项目中的高温高压蒸汽调节阀选型和设计提供重要参考和借鉴。

Abstract

The high-temperature and high-pressure steam control valves in steam-heated molten salt thermal energy storage systems have to withstand high temperature

high pressure

and high pressure difference

and require frequent and high-precision adjustments. In view of these design and manufacturing challenges

a steam-heated molten salt thermal energy storage demonstration project was taken as the research object. Focusing on the actual application requirements of high-temperature and high-pressure steam control valves

systematic calculation and analysis were conducted on their flow capacity under different selection working conditions. An innovative technical scheme was proposed

which involves designing different stages of throttling and pressure reduction for different opening ranges of the control valve. This scheme effectively achieves good adaptability of the valve under full working conditions. It can accurately match the regulation requirements of the system in different operation stages

and significantly improves the adjustment accuracy. When the upstream steam flow rate is low

the use of steam-assisted atomizing nozzles is recommended

as they can make the atomized water particles finer

achieve a better atomization effect

reduce thermal shock and thermal stress on the pipeline

and ensure the safety of the device after desuperheating. This study sorts out the key considerations in the selection process of high-temperature and high-pressure steam control valves

which can provide important reference for the selection and design of hightemperature and high-pressure steam control valves in subsequent similar steam-heated molten salt heat storage projects.

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