DIAGNOSIS OF ECONOMIC EFFICIENCY FOR SPRAYING WATER DESUPERHEATING OF UNIT NO.3 BY USING THE EQUIVALENT ENTHALPY DROP METHOD

ZHANG Chu-fang; DANG LongHudian Pucheng Power Generation Co Ltd

doi:10.19666/j.rlfd.2007.12.002

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DIAGNOSIS OF ECONOMIC EFFICIENCY FOR SPRAYING WATER DESUPERHEATING OF UNIT NO.3 BY USING THE EQUIVALENT ENTHALPY DROP METHOD

更新时间：2025-09-28

- DIAGNOSIS OF ECONOMIC EFFICIENCY FOR SPRAYING WATER DESUPERHEATING OF UNIT NO.3 BY USING THE EQUIVALENT ENTHALPY DROP METHOD
- Thermal Power Generation Issue 12, Pages: 4-7(2007)
- 作者机构：
  
  华电蒲城发电有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.12.002
  CLC： TK268
- Published：2007
- 稿件说明：
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ZHANG Chu-fang, DANG LongHudian Pucheng Power Generation Co Ltd. DIAGNOSIS OF ECONOMIC EFFICIENCY FOR SPRAYING WATER DESUPERHEATING OF UNIT NO.3 BY USING THE EQUIVALENT ENTHALPY DROP METHOD[J]. Thermal power generation, 2007, (12): 4-7.
DOI：

ZHANG Chu-fang, DANG LongHudian Pucheng Power Generation Co Ltd. DIAGNOSIS OF ECONOMIC EFFICIENCY FOR SPRAYING WATER DESUPERHEATING OF UNIT NO.3 BY USING THE EQUIVALENT ENTHALPY DROP METHOD[J]. Thermal power generation, 2007, (12): 4-7. DOI： 10.19666/j.rlfd.2007.12.002.

摘要

对华电蒲城发电有限责任公司二期3号机组N330-17.75/540/540型汽轮机热力系统进行了分析

在330MW、260MW、165MW3种典型工况试验基础上

对过热器、再热器减温水量过大进行了定量经济性计算。结果表明

过热器、再热器减温水量过大

使标准煤耗增大最高达2.57g/(kW·h)。对有关设备进行改进后

标准煤耗下降下2.06g/(kW·h)。

Abstract

The thermal system of N330-17.75/540/540 type steam turbine for unit no.3 in second-phase project of Huadian Pucheng Power Generation Co Ltd has been analysed. On the basis of test data under three typical operating conditions

i.e. 300 MW

260 MW

and 165 MW

the economic efficiency of excessive desuperheating water flow in the superheater and reheater has been quantitatively calculated. Results show that the excessive desuperheating water flow in the superheater and reheater makes the standard coal consumption to increase maximally up to 2.57 g/kW·h. After adjustment of the related equipments

the standard coal consumption has been decreased to 2.06 g/kW·h.

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