I would like to ask everyone: is it necessary to use an electric contact level gauge for the boiler drum?
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I would like to ask the teachers: is it necessary to use an electric contact level gauge on the steam drum at the top of the boiler? The electric contact level gauges for the boiler drum in our company keep breaking down. When I asked the process engineers, they said that these electric contact level gauges cannot be replaced. Is that true?
I don’t see any such requirement; however, the boiler level must be measured locally and also have at least two separate systems for transmission and display control. A common approach is to use a dual-chamber balance vessel along with a differential pressure transmitter for measurement, which is more stable and reliable than electric contact level gauges, but it is more expensive.
This post was last edited by 13902553 on 2014-12-31 20:11. Our factory uses three methods for monitoring the waste heat boilers: 1) magnetic level gauges on site, monitored via cameras; 2) electrical contacts; 3) dual-chamber balancers connected to differential pressure transmitters. This approach ensures almost complete reliability.
Two sets of measuring equipment or more are required by safety regulations; it is best to use electrical contacts when the water level is high
It’s not necessary to use electrical contacts, but safety must be ensured; another type of level gauge can be used for measurement.
If the drum is a variable-load drum, the differential pressure transmitter still requires pressure compensation; it is recommended to use a guide radar, as no pressure compensation is needed in that case. There are also guided-wave radars dedicated for steam drums~~~
Our factory’s waste treatment furnaces use three types of detection methods: 1) on-site magnetic flap switches monitored by cameras; 2) electrical contact switches; 3) dual-chamber balancers connected to differential pressure transmitters. This setup ensures almost complete reliability. . Agree with the opinion on that building; it’s absolutely useful
The electrical contacts break down too frequently; every few days, two or three of them fail. The cost associated with this is actually quite high