Precautions for testing the hot and cold circulation device in the small test

The cold and heat circulation device in the small test is to use the heat transfer oil to release heat energy through the heat conduction of the heater to achieve the purpose of heating, which is a closed forced circulation system, so there is no heat loss, so the thermal efficiency is high and the energy saving effect is good; Steam heating, on the other hand, is a non-enclosed non-circulating heating system with a large
heat loss.
There are many applicable industries for testing the cold and heat circulation device in the small test, that is, the equipment
with heat transfer oil as the heat transfer medium.
After the heater is heated up, the heater stops working
when the media temperature detected by the temperature sensing probe reaches the set value.
When the temperature drops below the setpoint, the heater starts working and stops working
when the temperature reaches the setpoint.
And so on
.
The start-up step of the cold and heat circulation device in the small test is to first open the other valve pipelines, as well as the pump, etc.
, and then load the compressor, and when the machine is turned off, it happens to be the opposite, and follow the steps to operate, so that the equipment system can operate
normally and stably.
1, regularly to check the reactor heating refrigeration device valves and pipelines, that is because the valves and pipelines, is more prone to write leakage, fracture and other issues, once there is a problem, it will seriously affect the normal operation
.
2, when the heat transfer oil enters the system, through the circulation pump into the equipment that needs to control the temperature, the heat transfer oil comes out of the controlled temperature equipment, and then returns to the system, the cycle starts 3, when operating, you must first open the valve before you can start running, otherwise, there may be problems such as no-load, which will lead to damage
.
For example, it should be ensured that the inlet valve of the condenser remains open, as long as it is normal operation, the valve of the condenser must be opened, otherwise it will not be able to ensure normal operation
.
4.
In the process of use, we should always pay attention to the condensation pressure and evaporation pressure of the condenser and evaporator, as well as the condensation temperature and evaporation temperature
.
5.
It is also necessary to ensure that the temperature sensing device after the evaporator works normally, so that the opening and closing size can be controlled normally to provide the correct liquid supply for the
evaporator.