Mixing heat problem
Thread Content
There are special requirements for the storage temperature of materials. Using steam mixing heat cannot achieve free temperature control. Using electric mixing heat will result in the consumption of electric energy, and problems such as frequent tripping. It is a headache. Do you have any good solutions to this problem?
Can you tell me specifically which medium?
Why did it trip? Our electric heating transportation storage tanks have never had a power outage problem! ! ! !
We use steam for intermittent heating.
We use 1.0MPA steam tracing and the effect is OK
What material is the poster talking about?
Using thermal oil can solve this problem. The storage temperature of the material is used to control the flow control valve on the heat conduction pipeline.
Electric heating is more economical and convenient. Frequent tripping may be due to insufficient circuit design.
In order to control the temperature conveniently and accurately, you can use electric heating. If the tripping problem always occurs, you can solve the problem by replacing a thicker cable and choosing a suitable circuit breaker!
The main reason for electric heating tripping is that the current is too large and the line cannot bear it.； First of all, it should be solved from the root cause. It is worthwhile to replace lines and transformers that can meet the load requirements. On the one hand, it can achieve the purpose and on the other hand, it can avoid accident risks. ； If there are no conditions, a combination of steam and electric heating can be used, while adding heat preservation to avoid heat loss and meet usage requirements.
The transportation temperature of liquid asphalt is 180 degrees Celsius, the temperature of heat tracing and heat transfer oil is 180 degrees Celsius, and the asphalt temperature requirement for a transportation distance of 200mm is plus or minus 2 degrees Celsius. The temperature of the heat transfer oil is controlled by PID. It is quite stable. Maybe it is because my transportation distance is short, so there is no worries.
Let me ask you, Floor 11, what kind of valve do you usually use to control asphalt flow? We want to use a regulating valve to control the asphalt flow, but we don't know which valve is best.
Choose according to the required temperature for heating. If the temperature requirements are not high, hot water is also very good, and it can be achieved with steam and water.
The required temperature of the transported material is 63-70 degrees, which is relatively strict. I want to use circulating hot water for heat tracing, but I don’t know if it is feasible? No.