Causes and solutions for common problems generated by the boiler safety valve on the boiler that everyone is familiar, often see in everyday life. Safety valve as it is an important part of its operation is an important protective equipment, safety valve leak will cause the system lost a lot of soda, affecting the safe operation of the unit and the personal safety of staff. Following small detail of it to tell you about the phenomenon of failure, causes and solutions. As follows: a, Symptom: (1) the exhaust valve tube outlet steam discharge slightly. And a slight high frequency acoustic leak near (2) safety valve. II. Analysis: (1) in the boiler room ambient temperature (ambient temperature + 25 ℃) is too high, resulting in decrease of the spring force, medium binding surface erosion damage caused by the micro-valve leakage. (2) maintenance of the standard process for unskilled maintenance, repair quality standards are not high. Third, the solution: (1) The contact pressure of the safety valve factory tuning parameters appropriate pressing adjusted until the steam leak site occurs. Strengthen training safety valve maintenance process, improve the technological level maintenance staff. (2) safety valve maintenance, carefully check the valve head, the valve seat joint surface damage, the development of joint surface inspection according to the inspection measures. (3) valve repair RESEARCH bonding surface during overhaul technique requires strict accordance with the manufacturers procedure steps in the process work is performed. (4) perform maintenance package strictly prescribed, the valve body, the valve seat joint surface roughness of 0.025 after grinding, assembled not meet quality requirements. (5) improve the operational level of operational personnel, to avoid over-pressure boiler. The reason is that the content of these recurring boiler failure, problems and solutions, and hope that these will help you better to avoid such problems in a timely manner occurred but also timely response and find solutions.
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(1) An important part of the water treatment work during boiler blowdown is an important means to ensure that the boiler water quality meets the standard requirements.