TEST OF ECONOMIC PERFORMANCE OF A UPGRADED 48SH-22 CIRCULATING PUMP

doi:10.19666/j.rlfd.2000.03.010

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TEST OF ECONOMIC PERFORMANCE OF A UPGRADED 48SH-22 CIRCULATING PUMP

Thermal Power Generation Issue 3, Pages: 31-32(2000)

更新时间：2025-09-28

- TEST OF ECONOMIC PERFORMANCE OF A UPGRADED 48SH-22 CIRCULATING PUMP
- 作者机构：
  
  1. 吉林省电力科学研究院,长春,130021
  2. 珲春发电厂!吉林珲春,133303
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2000.03.010
  CLC： TM621
- Published：2000
- 稿件说明：
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TEST OF ECONOMIC PERFORMANCE OF A UPGRADED 48SH-22 CIRCULATING PUMP[J]. Thermal Power Generation, 2000, (3): 31-32.
DOI：

TEST OF ECONOMIC PERFORMANCE OF A UPGRADED 48SH-22 CIRCULATING PUMP[J]. Thermal Power Generation, 2000, (3): 31-32. DOI： 10.19666/j.rlfd.2000.03.010.

摘要

珲春发电厂 48SH - 2 2型循环水泵由于运行工况严重偏离设计工况

存在着运行效率低、电耗高、叶轮汽蚀严重等问题。 1997年采用了高效叶轮对循环水泵进行了节能改造

并对电机进行了双速改造。通过性能试验和经济性分析

改造后高速运行水泵效率为 84.7%

低速运行效率为 86 .8%

每年可节电 2 47.7万kW·h

相当于降低供电煤耗率 1.4787g/ (kW·h)。水泵运行调整灵活

能满足不同季节对循环水量的需求

为同类型循环水泵的改造提供了经验

Abstract

Due to deviation from design conditions

a 48SH-22 circulating pump in Huichun power plant was found with many operation problems.such as low operation efficiency

high power consumption

impeller cavitation

etc.For energy saving purpose

this circulating pump was upgraded in 1997 with a two-speed motor and a high-efficient impeller.The results of performance test and economic analysis show that the circulating pump reached an efficiency of 84.7% with high speed and 86.8% with low speed.An annual electricity saving of 2.477 MW·h and a decrease of coal consumption of 1.4787 g/kWh were then obtained.The operation of this upgraded pump is very flexible.It can meet all the water demands in different seasons.

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