After filter operation is empty molecular distillation systems or open the case, the user must wash filter element with water cannon, as soon as possible or put the filter element completely soaked in water to avoid dry filter element. In ordinary water flushing filter element, the pressure is not enough, the impurity can't completely is cleared, and is likely to be on the cracks in the filter element.
Knowledge control cabinet:
1. The control cabinet material? A: cast aluminum, 304, paint, glass fiber reinforced plastic, PE, etc.;
2. The control cabinet control mode? A: differential pressure control, time control and manual control;
3. The control cabinet? A: shell, PLC (Siemens, mitsubishi, ABB, etc.), control devices, relays, thermal protection device, terminal blocks, wiring slot, etc;
4. Regular communication control cabinet support? A: Ethernet, other communications can be customized;
Second, the differential pressure
1, the differential pressure thin film distillation devices? A: differential pressure switch, differential pressure transmitter, pressure transmitter;
2, the differential signals? Answer: switch signal, analog signal (0 to 10 v voltage signal, 4 ~ 20 ma current signal).
3, differential pressure transmitter brand? A: we used brand of baoji, rosemount, yokogawa, etc;
4, the classification of the differential pressure transmitter? Answer: the conventional differential pressure transmitter, diaphragm remote transmitter (mainly used for conditions such as high and easy to dry);
Three, the valve related knowledge
1, the classification of winterization filtration the valve? A: from the structure can be divided into the ball valve, cut-off valve, gate valve, butterfly valve, etc.;
From the drive mode can be divided into electric valve, pneumatic valve, hydraulic valve, manual valve;
According to the purpose can be divided into the cut-off valve, check valve, regulating valve, safety valve, exhaust valve, drain valve etc.
2. The valve material? A: carbon steel, ball mill, cast iron, 304, 316 l, dual phase steel, etc.