火力发电厂高压加热器.pdf

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中华人民共和国水利电力部

关于颁发《火力发电厂高压加热器

运行维护守则》的通知

(83)水电电生字第47号

1979年我部曾颁发《火力发电厂高压加热器运行维护守则(试行本)》，经过几年来的试
用，对大型机组正常投入高压加热器，保证机组出力和节约能源，起了积极作用。1981年我
部又组织有关单位对该守则进行补充与修改。现正式颁发《火力发电厂高压加热器运行维护
守则》，原试行本同时作废。
各单位在执行中，对本守则的意见请随时函告我部。

1983年5月16日

288
第一章总则·····。··············································································⋯⋯.，.⋯290
第二章一般要求········································································⋯⋯”·⋯⋯⋯290
一、保护装!···⋯⋯，·⋯，.·⋯⋯‘.·········...·..···.······。·.··.··.···.··.·············。.⋯⋯290
二、疏水系统·················································································⋯⋯。。。。。.291
三、监视、测量仪表······。······················.··············⋯⋯，·····················⋯⋯⋯⋯291
四、放空气系统及其他。.。。。。291
第三章高压加热器的投入、运行和停用··。·············································⋯⋯。二。。。291
一、高加投入前的准备··················································。·.................⋯⋯.⋯，.291
二、高加的投入··············································································⋯⋯⋯⋯292
三、高加运行中的定期监视································⋯⋯。二‘⋯。.................⋯⋯。.o.。。292
四、高加的停用··························································。···················⋯⋯二。。。。293
五、事故处理·························································⋯⋯。·················⋯⋯，.⋯，293
第四章高加的维护·························································......·...⋯⋯‘.⋯⋯294
附录条文解释··················································。····················.......⋯⋯296

289
第一章总则

第1条为了确保火力发电厂的安全经济满发，汽轮机在运行时，各高压加热器(以后
简称高加)均应经常投入运行。
第2条如因故障必须停用高加时，应按照制造厂规定的高加停用台数和负荷的关系，或
根据汽轮机抽汽压力来确定机组的允许最大出力。
第3条为了防止在高加管子破裂时可能造成汽轮机进水和高加筒体爆破及由此而造成
人身事故，高加系统必须配置完好的保护装置，高加投入运行时保护装置必须同时投入使用。
第4条我国进汽压力为90at(lat=9.80665X104Pa)及以上的l00MW以上大型机组，
目前广泛采用U形管式和盘管式这两种表面式高加，本守则主要是对此而编制的，各发电厂
编制现场规程时应以本守则为依据。由于高加热力系统型式多样，在编制现场规程时，尚需
按照设备的结构特点、制造厂家的要求结合现场具体条件加以充实。
第5条各厂编制的现场规程中，应附有下列技术资料:
(1)高加热力系统图，包括给水、抽汽、疏水等系统;
(2)高加保护装置系统图;
(3)高加给水的设计通流量和最大允许通流量;
(4)通过试验求得高加进汽压力和出口水温的关系曲