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How to improve the heat transfer coefficient of enamel equipment

Number of hits:    Update time: 21 / 12 / 16 16:47:12 Source: www.zbshebei. cn close Sharing:
In chemical experiments, heating this operation is more frequent, and to heating, often need to use enamel equipment, its heat resistance is very strong, you can rest assured. If its heat transfer coefficient can be improved, its heat resistance and heat transfer will be better. How to improve the heat transfer coefficient of equipment?
1. The first is the thickness of enamel layer: the standard thickness of enamel layer is 0.8-2.0mm, which should be strictly limited in this range. If it is too thick, the heat transfer effect will be affected, and the thickness should be about 1.5mm;
2. Selection of jacket: there are two kinds of jacket: ordinary and external coil tube. The heat transfer effect of external coil tube type is better than that of ordinary type, but the cost is relatively high;
3. Whether there is inner coil tube in enamel equipment, if it is equipped with inner coil tube, the heat transfer effect can be doubled;
4. Whether there is baffle device in it. If it is equipped with baffle device, the heat transfer effect can be improved;
5. Whether the inlet of the jacket nozzle is equipped with a nozzle, if so, the heat transfer efficiency can be increased by more than 50-60%;
6. Selection of heat transfer medium: steam and heat transfer oil have their own advantages and disadvantages. The heat transfer effect of steam should be fast, but the upper limit temperature should be relatively low;
7. Control of circulation speed of heat transfer medium: the general principle is to slowly raise and lower the temperature to protect the enamel layer of enamel equipment, but the proper circulation speed and steps can effectively improve the heat transfer effect;
8. The selection of agitator form and stirring speed, and selecting the appropriate agitator form and speed can effectively improve the heat transfer effect;
9. Since the heat transfer coefficient is determined by the heat transfer coefficient in the tank and jacket, the fouling in the tank and jacket should be removed regularly according to the production process in the actual production process, so as to achieve good heat transfer effect.
We can improve the heat transfer coefficient of enamel equipment through the above methods. If the heat transfer coefficient is high, the temperature can be increased in a relatively short time when heating, thus accelerating the reaction rate. Improve the use efficiency.

性饥渴的黄蓉与老汉_男朋友像疯了一样要我_昨晚他怎么弄你

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