Pneumatic valve performance
The heat transfer oil has the properties of heat cracking resistance and chemical oxidation resistance, high heat transfer efficiency, fast heat dissipation and good thermal stability. As the heat transfer medium of industrial oil, the heat transfer oil has the following characteristics:
Under almost atmospheric conditions, very high operating temperatures can be obtained. That is, it can greatly reduce the working pressure and safety requirements of the high-temperature heating system, and can improve the reliability of the system and equipment. It can meet the process requirements of heating and cooling at different temperatures within a wide temperature range, or use the same type of heat transfer oil in the same system. Heat transfer oil can meet the process requirements of high temperature heating and low temperature cooling at the same time. That is, the complexity of the system and operation can be reduced; The water treatment system and equipment are omitted, which improves the thermal efficiency of the system and reduces the maintenance workload of equipment and pipelines. That is, the initial investment and operation cost of the heating system can be reduced. If the system leaks due to an accident, the heat transfer oil may burn when encountering an open fire. Compared with the steam system, this is the problem of the heat transfer oil system.
However, under the condition of no leakage, the operation safety of the heat transfer oil system is higher than that of the water and steam system because it works under low pressure. Compared with another type of high temperature heat transfer medium molten salt, when the operating temperature is higher than 400 ℃, molten salt has an absolute advantage over heat transfer oil in terms of the price and service life of heat transfer medium, but in other aspects. Obvious disadvantages, especially in the convenience of system operation, the chemical property is relatively stable, not as easy to burn as light oil.
