An analyzing example for unit energy-saving with low-pressure economizer

HAN Shuang; WANG Weifeng; ZHANG Pengfei; WU Shenglai; XU Yuangang

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An analyzing example for unit energy-saving with low-pressure economizer

更新时间：2025-09-28

- An analyzing example for unit energy-saving with low-pressure economizer
- Thermal Power Generation Vol. 44, Issue 12, Pages: 133-135(2015)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2015
- 稿件说明：
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HAN Shuang, WANG Weifeng, ZHANG Pengfei, et al. An analyzing example for unit energy-saving with low-pressure economizer[J]. Thermal power generation, 2015, 44(12): 133-135.
DOI：

HAN Shuang, WANG Weifeng, ZHANG Pengfei, et al. An analyzing example for unit energy-saving with low-pressure economizer[J]. Thermal power generation, 2015, 44(12): 133-135. DOI：

摘要

为了分析加装低压省煤器对机组热力性能的影响

以某亚临界320 MW机组为例

对机组加装低压省煤器前、后锅炉效率、汽轮机热耗率和机组供电煤耗率等进行了热力性能试验。结果表明

机组加装低压省煤器后

锅炉效率提高了1.41%

尽管汽轮机热耗率增加了64.5kJ/(kW·h)

但机组供电煤耗率降低了2.2g/(kW·h)

节能效果显著。

Abstract

The effect of adding low-pressure economizer on the unit thermal performance was introduced

and the calculation method of the unit thermal performance index was put forward.Moreover

Taking a300 MW unit as the example

the thermal performance tests were conducted for the unit before and after the low-pressure economizer was added.The variations of boiler efficiency

steam turbine heat consumption rate

unit net coal consumption rate and other parameters were obtained.The results show that

after the low-pressure economizer was added

the boiler efficiency increased by 1.41%

the unit coal consumption rate reduced by 2.2g/(kW·h)although the turbine heat rate increased by 64.5kJ/(kW·h).The unit equipped with low-pressure economizer achieved objective energy-saving effect.

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Related Institution

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