Regarding the modification of the temperature and pressure reducers
Thread Content
There is a 10-kilogram steam line with an inlet temperature of 250 degrees, which needs to be reduced to around 180 degrees. Currently, the inlet pressure of the cooling water is 15 kilograms; the inlet is 1 inch in diameter, there is one nozzle, and the control valve is fully open. When the steam demand increases, the temperature of the temperature reduction valve exceeds 198 degrees, causing an interlock that shuts down the system. How can the amount of cooling water used be increased? Should I make the nozzle opening larger? Should we add another cooling water pipeline? Do you have any good suggestions for modifying temperature and pressure reducers?
What is the size of your supervisor? How should the temperature and pressure reducers be designed?
Both the inlet and outlet are 12 inches in diameter; the thinnest part at the intermediate shut-off valve is 3 inches in diameter, while it is 6 inches at the thermostat location.
We have encountered the same problem. The desuperheater is oversized, and it is currently operating at low load. When the steam consumption at the user side suddenly increases, the desuperheater is unable to adjust the temperature in time, which leads to an over-temperature interlock that shuts down the steam control valve before the desuperheater. Even increasing the amount of cooling water doesn’t work; the temperature reduction effect is poor, and it also results in too high a water content throughout the entire system. Do any experts have any solutions?