1. Hidden danger of air and moisture entering

在加熱啟動(dòng)過程中要反復(fù)打開排氣閥，以排凈系統(tǒng)中的空氣、水與導(dǎo)熱油混合蒸汽，并注意控制導(dǎo)熱油升溫速度。

In the process of heating and starting, the exhaust valve should be repeatedly opened to drain the mixed steam of air, water and heat transfer oil in the system, and pay attention to control the heating rate of heat transfer oil.

2、導(dǎo)熱油品質(zhì)下降產(chǎn)生的隱患預(yù)防

2. Prevention of hidden danger caused by quality decline of heat transfer oil

對于使用中的導(dǎo)熱油，《有機(jī)熱載體爐技術(shù)監(jiān)察規(guī)程》規(guī)定每年對運(yùn)動(dòng)粘度、閃點(diǎn)、殘?zhí)?、酸值少檢測一次。

For the heat transfer oil in use, the "Supervision Regulation on safety technology of organic heat carrier furnace" stipulates that the kinematic viscosity, flash point, residual carbon and acid value shall be tested at least once a year.

3、電加熱棒結(jié)焦炭化的隱患

3. Hidden danger of coking and carbonization of electric heating rod

用電熱棒加熱導(dǎo)熱油時(shí)，電熱棒表面會(huì)很快結(jié)焦炭化，更終使電熱捧燒毀，導(dǎo)熱油報(bào)廢。更好的方法是專門設(shè)計(jì)制造專用的電熱棒，增大表面積，使捧表面溫度低于導(dǎo)熱油的允許液膜溫度。

When the heat transfer oil is heated by the electric heating rod, the surface of the electric heating rod will be carbonized quickly, and the electric heating rod will be burned out and the heat transfer oil will be scrapped. The best solution is to design and manufacture special electric heating rod, increase the surface area, and make the surface temperature lower than the allowable liquid film temperature of heat transfer oil.

4、管道法蘭或閥門間的泄漏隱患

4. Hidden danger of leakage between pipe flange or valve

管道系統(tǒng)中所有密封件應(yīng)選用具有良好密封性和阻燃性的柔性和金屬纏繞制品，切忌用含有橡膠成分的密封件。保溫材料應(yīng)采用空隙度小且不易受有機(jī)熱載體浸漬的材料，以防有機(jī)熱載體泄漏后造成保溫層著火。

All seals in the pipeline system shall be flexible and metal wound products with good sealing and flame retardancy, and seals containing rubber components shall not be used. Thermal insulation materials should be made of materials with small voids and not easy to be impregnated by organic heat carriers, so as to prevent the insulation layer from catching fire after the leakage of organic heat carriers.

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