Can a solenoid valve for a constant-temperature water bath – steam coil control a temperature of ±℃?
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It’s a constant-temperature water bath; according to the customer’s technical requirements, a steam coil is used to heat 180 kg of water to 95°C within 20 minutes, after which an electric heating device is employed for maintaining that temperature. It seems that those involved in automatic control believe that a steam coil can achieve a precision control within ±1°C across the range of 0–95°C. Question: Regarding the question raised by everyone, when designing a constant-temperature container, if there is already a steam coil, shouldn’t an electric heating device be used?
If self-control deems it acceptable, then it should be reliable.
The solenoid valve is controlled by the electrical signal converted from the detected temperature, thereby regulating the on and off of steam.
It is completely feasible to heat with steam until it approaches the desired temperature, and then use electric heating to control the temperature. Controlling electric heating within ±1℃ is not difficult; imported equipment can achieve control accuracy of ±0.2℃.