2010-04-26 14:55:18 阅读3 评论0 字号:大中小
译文:
锅炉压力容器安全阀运行检验方面的要求 1、有定期放汽(气)试验记录,并按规定进行定期放汽(气)。 2、锅炉压力容器正常运行时安全阀应无泄漏。 3、安全阀检修后有校验记录,整定值符合规程要求。 4、安全阀排汽管消声器的排汽小孔无堵塞、积水、结水。 5、弹簧式安全阀防止随意拧动的装置完好,杠杆式安全阀限位装置齐全,脉冲式安全阀脉冲管保温完好,气室式安全阀的气源符合要求。 6、没有安全阀解列或任意提高起座压力的现象。 锅炉压力容器安全阀检修、维护方面的要求 1、发现安全阀选型错误,应及时更换正确型号的安全阀。 2、安全阀的阀芯和阀座密封面不严且无法修复时,应更换安全阀。 3、安全阀的阀芯与阀座粘死或弹簧严重生锈、腐蚀时应更换安全阀。 4、安全阀的阀体、阀芯、阀座完好,表面无裂纹,密封面已修复经验收合格。 5、阀杆、阀芯无卡涩现象。 6、弹簧式安全阀弹簧变形正常,无裂纹;杠杆式安全阀杠杆完好,刃口无裂纹,重锤限位装置调整方便,固定牢靠;气室式安全阀无卡涩现象。 7、安全阀排汽管无过热现象,内部腐蚀物已清理干净,支吊架受力正常。 8、安全阀疏水管畅通,固定方式正确。 9、校验安全阀的起座压力、回座压力,测量起跳高度,符合技术文件标准规定。 10、锅炉压力容器的安全阀安装及检修后,都应校验安全阀的起座压力。带电磁回力辅助操作机构的电磁安全阀,除进行机械或液压装置校验外,还应做电气回路的远方操作试验及自动回路压力继电气器的操作试验。 11、锅炉压力容器安全阀校验后,其起座压力、回座压力、阀瓣开起高度应符合规定,并在锅炉压力容器档案中记录。 12、安全阀在校验过程中要有严格的防止超压的安全保护措施,并在专人监督下实施。安全阀校验中,校验人员不得中途撤离现场。
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原文:
Boiler and pressure vessel safety valve testing requirements to run 1, regular release steam (gas) test records, as required for regular release steam (gas). 2, boiler and pressure vessel safety valve during normal operation should be no leakage. 3, after the check valve repair records, setting the value of order requirements. 4, valve exhaust muffler exhaust pipe without plug holes, water, end water. 5, spring-loaded safety valve to prevent the random twist of the device intact, lever-type safety valve stopper is complete, pulse valve pulse tube insulation intact, gas chamber safety valve of the gas supply to meet the requirements. 6, no valves or splitting from the seat to raise the pressure of the phenomenon. Boiler and pressure vessel safety valve repair, maintenance requirements 1, found that safety valve selection error, should be the correct type of valve replacement in time. 2, the valve spool and the valve seat sealing surface loose and can not be repaired, replace safety valve. 3, the valve spool and valve seat, spring stick death or serious rust, corrosion safety valve should be replaced. 4, the valve body, valve, valve seat in good condition, no crack surface, the sealing surface has been repaired and passes. 5, valve stem, valve core, jam-free phenomenon. 6, spring-loaded safety valve spring deformation normal, no cracks; lever-type safety valve lever intact, edge-free crack, hammer limit device easy adjustment, stable fixation; air chamber valve jam-free phenomenon. 7, exhaust valve control without overheating, the internal corrosion has been cleaned, the normal force supporting hanger. 8, the safety valve of drainage pipe flow, fixed right way. 9, check valve of the pressure from the seat, back seat pressure, measured off a high, consistent with the provisions of technical documentation standards. 10, boiler and pressure vessel safety valve installation and maintenance, the safety valve should check the pressure from the seat. With electromagnetic force-aided institutions back to the electromagnetic safety valve, in addition to mechanical or hydraulic device check, we must also do remote operation of electrical circuit testing and automatic loop pressure test following the operation of electrical devices. 11, Boiler and Pressure Vessel Safety Valve Check, its pressure from the seat, back seat pressure, valve flap to open from the height should be consistent with requirements and in the boiler and pressure vessel file records. 12, safety valve in the verification process must be strict security to prevent overpressure protection measures, and under the supervision of the implementation of the hand. Check the safety valve, check personnel shall not leave the scene half-way.