sewage pump Switch in different forms
Sewage pumps and submersible pumps are often mistaken for a product, it is not true, they are very different, the following Xiaobian you introduce the difference between sewage pumps and submersible pumps.
1, two kinds of pump switch in different forms
Sewage pump drive is generally used to motor, open or close the action to complete the need for a certain amount of time analog, you can do regulation. Submersible pump driven by the coil, can only open or close, switch action time is short.
2, the use of two different pump technology
Sewage pumps are generally used for regulation, as well as switch quantities, such as: fan coil ends. Submersible pumps are suitable for some special process requirements, such as leakage, fluid medium special, the price is more expensive.
3, the work of the two different nature of the pump
Sewage pump drive is generally used motor, more resistant to voltage shock. Submersible pumps are quick and fast off, generally used in small flow and small pressure, requiring a large switching frequency of the local sewage pump instead. Sewage valve opening can be controlled, the state has open, closed, half open half, you can control the flow of media in the pipeline and submersible pump can not meet this requirement.
Each product in use after a period of time, there will be a failure, but for the use of a period of time there may be a decline in operating efficiency, resulting in lower efficiency of sewage pump operation, to understand.
1, due to the erosion of the water flow, the sewage pump inner wall and the impeller over the water surface becomes rough, the sewage pipe flow resistance coefficient increases, coupled with the water flow in the pump is very large, head loss increases. Reduced hydraulic efficiency.
2, due to the sewage pump before the addition of drugs or water quality and other reasons, so that the pump casing serious fouling or corrosion. Pump casing serious dirt can make the pump shell wall thickness increases about 2ram, and the sewage pump wall formation scale tumor, so that the pump volume reduced, pumping reduced, and the flow channel rough, head loss increased. Passenger efficiency and hydraulic efficiency are reduced.
3, due to the processing process caused by the diaphragm diaphragm pump pump defects, cavitation, erosion, corrosion and chemical erosion and other causes of pump flow channel generated voids or cracks, water flow caused by the vortex caused by energy loss. Reduced hydraulic efficiency.
4, impeller surface cavitation.
5, volume loss and mechanical loss. As the pump is used for a long time, mechanical wear is lost and the resistance increases, resulting in reduced volumetric efficiency and mechanical efficiency.
Sewage pump should be observed in the running time, so that early detection of these failures, timely processing. Early processing will not cause too much loss.
Sewage pump if you do not use a long time, it will be very easy to rust phenomenon, the normal use of our bring a certain impact, sewage pump manufacturers to tell you about the removal of sewage pump rusty tips:
1, if not used for a long time, should be the sewage pump pump out of the water, and dry with a dry cloth pump cavity. If the pump chamber is not dry inside the state, in a long time, the pump chamber will rust.
2, artificial rust is the most cost-effective is the insurance, we can use their own tools to remove the rust, we artificial rust, do not need to use other chemical products to rust, so save some costs The Why is it insurance? Because the vacuum pump pump chamber, if the use of chemical rust to rust, then the pump cavity will be more or less damaged.