Selection of heat transfer oil furnaces
Thread Content
The heat transfer oil furnace YYL(W)-240Y has a thermal power of 240 KW, which is sufficient to meet the required heating capacity; the flow rate of the circulating oil is only 20 cubic meters per hour. The outlet diameter of this boiler is 50 mm. If that pipeline is divided into three branches, with an outlet diameter of 50 mm, then the flow rate through it will be very low, resulting in slow heat exchange? How should I choose a model?
Explain the process clearly – why is it divided into three paths? After dividing into three branches, the pipes narrow down, so flow display and control are necessary.
Since there are three reaction vessels that need to be heated, if the pipe diameters of the three branches are equal, is it then unnecessary to use flow controllers?
Even though the pipe diameters of the three branches are equal, it does not mean that their pipe resistances are equal. Different pipe resistances imply different amounts of oil flowing through them; therefore, valves are needed for control. Generally, temperature display and valve control are sufficient. Using flow control requires a mass flow meter, which is relatively expensive and not suitable. It is recommended to use the temperature of the reactor to control the flow rate of the heat transfer oil.
The heat load of a heat transfer oil furnace is constant, but the circulation rate is not fixed; it depends on the temperature difference between the inlet and outlet of the furnace as well as the residence time. This is related to the temperature of the reactor that needs to be heated.
Reply to 5# zllm521: Agree with what was said above