Precautions for the use of heat transfer oil for explosion-proof heating and low-temperature units

With the continuous development of the pharmaceutical and chemical industry, explosion-proof heating and low-temperature units are also constantly favored by users.
Wuxi Guanya uses plate heat exchangers and tube heaters to improve heating and cooling rates
.

Then, when choosing, it is recommended to choose the heat transfer oil configured by the regular manufacturer to avoid affecting the overall operation of the equipment
.


There are two reasons for the unstable pressure of the heat transfer oil circulation system of the explosion-proof heating and low-temperature unit.
One is that there is gas inside the system, the other is that the filter screen of the system circulating pump is blocked, and the third is that the system is short of oil (this situation is generally very rare)
.

Then, if the pressure gauge fluctuates abnormally or is unstable after adding the heat transfer oil online cleaning agent, it is generally caused by blockage.
The troubleshooting method is very simple.
It only needs to close the circulating pump in use and open the bypass or the standby circulating pump.
Yes, check whether the pressure is normal after closing the upper and lower shut-off valves of the circulating pump.
If the pressure recovers and stabilizes, it means that there is coking and carbon deposition in the system.
If the pressure is still unstable, consider whether it is lack of oil.
and the presence of air
.

　　The purpose of the online cleaning agent for heat transfer oil is to ensure that the coking and carbon deposits in the system are fully dissolved.
However, in many cases, the coking and carbon deposits are attached to the inner wall of the system pipeline.
When the online cleaning agent comes into contact with it, it will begin to slowly penetrate.
Inside, it gradually decomposes and peels off, and it is inevitable that large pieces will peel off directly, so that it will pass through the filter before it has time to fully dissolve, and then a blockage will be formed.
In fact, it is also a normal phenomenon.
It is because of the fouling of these substances that the effect of the cleaning agent can be explained
.

After adding the heat transfer oil online cleaning agent, there is another problem that is the temperature.
Many users find that the system temperature is OK before the cleaning agent is added, but after adding the cleaning agent, the temperature starts to rise and fall and it is not very stable.
This phenomenon occurs.
The reason is to check whether the filter is blocked first.
In many cases, the influence of temperature is related to the flow rate of heat transfer oil in the system
.