Protection of the hottest heat conducting oil duri

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Protection of heat transfer oil in the process of use

1 avoid the oxidation of heat transfer oil. Because heat transfer oil is prone to oxidation reaction under the condition of high-temperature operation in the heat carrier, resulting in the deterioration of heat transfer oil, nitrogen filling protection is usually provided for the set high-temperature expansion tank to ensure the closure of the heat carrier system, avoid the contact between heat transfer oil and air, and extend the service life of heat transfer oil

2 avoid coking of the heat transfer oil. When the operating temperature of the heat transfer oil exceeds the maximum operating temperature, coking will appear on the wall of the oil guide pipe. With the thickening of the coking layer, the high wall temperature of the oil guide pipe will promote the adhesion and coking, and the temperature of the continuously thickened pipe wall will further increase. With the continuous thickening of the pipe wall, the heat transfer performance will become worse internationally, and explosion accidents may occur at any time. Therefore, the temperature of the heat transfer oil at the outlet of the heat carrier should be strictly controlled. Mavisliu, a market development engineer of SABIC personal hygiene business in Asia, will deliver a keynote speech entitled "innovative solutions for the personal hygiene industry: coordinating functionality, consumer convenience and safety" at Conrad Hotel at 2 p.m. on October 25. The maximum film temperature of the heat carrier should be less than the allowable oil film temperature

3 regularly check the leakage points, strengthen the on-site monitoring, ensure that the heat carrier system is intact, regularly check the corrosion and leakage of the equipment, and repair in time in case of leakage. Therefore, the heat carrier system should be reasonably designed, and the wall thickness and pressure resistance of the equipment should be regularly tested during use. The utilization system strength with friendly user interface, perfect control function, strong real-time performance, good portability, short development cycle and high reliability should be designed, and the pressure gauge, safety valve and vent pipe should be installed on the equipment and pipeline

4 prevent water and other impurities from mixing into the heat carrier. With the heating of the heat carrier, the water dissolved in it will vaporize rapidly, and the pressure in the heat transfer pipe will rise sharply. Now it has the strength of commercial large-scale production, which will lead to uncontrollable degree and cause explosion accidents. Therefore, the heat transfer oil should be heated slowly before being put into use to remove water and other light major impurities in the heat transfer oil

5 regularly test the indicators of heat transfer oil, regularly measure and analyze the physical and chemical indicators such as residual carbon, acid value, viscosity, flash point, melting point of heat carrier, timely grasp its quality changes, and analyze the reasons for changes. When the acid value exceeds 0.5mgkoh/g, the viscosity change reaches 15%, the flash point change reaches 20%, and the residual carbon (mass fraction) reaches 1.5%, it is proved that the performance of the heat transfer oil has changed [5]. Regularly and appropriately add new heat carriers, so that the amount of carbon residue in the system remains basically stable. Sure! But running for a period of time requires shutdown

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