3700 Turbine flow rate issue
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This post was last edited by sunjl1981 on 2013-1-6 at 23:03. Does anyone know that after shutting down the 3700 turbine, the inlet and outlet valves are closed, while the backflow and anti-surge valves are fully open, and the emergency chlorine valve is opened? In this situation, the flow rate of the unit is only a little over 2000 cubic meters per second, with a negative pressure of -25 KPa at the primary inlet. Will this have an impact on the unit? 【The unit did not experience surge.】 Those who know, please share, , -
The negative pressure at the inlet is too high; in such cases, it is necessary to open the nitrogen flow valve at the inlet appropriately. Additionally, the flow value at the outlet may be inaccurate. Prolonged operation can cause damage to the unit.
Idling is bad for the machine; the second floor is the right choice
Even with the import and export functions disabled, can you still detect the flow rate? Are the flow meters there installed before the flow reverses? If so, will the measurements still be accurate? After shutting down the unit, it’s sufficient to carry out primary inflation and replacement for one or two hours; there’s no need for it to run idle for a long time. In fact, running idle for half a day isn’t a big problem either.
If you’re worried, you can turn down the chlorine valve for accidents; there is some pressure at the outlet
It’s fine for a short period of time; it’s best to introduce some nitrogen at the inlet to maintain a slight positive pressure there. It’s okay to run it overnight as well. If the company has the funds, it should do so – after all, energy conservation and reduced consumption are being promoted these days
4th floor. Is the flow meter located before or after the backflow?
With both imports and exports closed, what’s the point of keeping it running idly?
Who is that? It’s in connection with German turbines
Increase the backflow to reduce negative pressure; if the negative pressure is too high, there should be a interlock mechanism