The cause of damage of electric heating tube is the release date: 2019 - 06 - 12 read number: zero

Usually the cause of damage of electric heating tube has the following five aspects: (1), block: under the condition of cutoff, such as electric heating temperature control by the outlet temperature control, sensor signal can't provide the correct signal, has asked for heating, electric heating tube becomes more and more hot, if over temperature sensor work, also can cut off power supply, if you don't work over temperature sensor, or electric heating element eventually burn out, or container craze, melting, no matter what happens, in explosion-proof occasions may have unpredictable consequences. (2), over temperature sensor location is not correct: if the sensor position close to a certain time of the electric heating pipe not heating on the road, other circuits in the heating, over temperature sensor can't detect the correct temperature or later a few baidu. (3), over temperature sensor wiring is not correct, when multiple electric heating tube together in the same lever block, wire are likely to cross misconnection. For example: there are three parallel heating gas, electrical heating tube 1 # and 2 # heater running, 3 # heater need not, if the 2 # heater over temperature sensor and 3 # heater cross misconnection, such as flow to a sudden stop, 2 # 3 # sensor is always not off heater, heater burn out in the end. (4), electric heating element cracking: many of the tube and shell heat exchanger heat exchanger factory pipe cracking invested a lot of research experience, however, the component of electric heating tube cracking research papers are very few, the reason is that inside the electric heating element is filled with solid magnesium oxide powder, can crack in high-pressure situations can also put the magnesium oxide powder to meet XianQiang, cause electric leakage. (5), short circuit, high temperature magnesium oxide powder is a good thermal conductive materials and insulation materials, but magnesium oxide powder to cause electrical insulation lower moisture absorption, moisture absorption of the main reasons why due to environment vapor or long placed or open connection time is too long, and so on, such as electricity, circuit breaker is not cut off in time, breakdown heating element may ultimately damage of electric heating tube.