Well point drop water pump features and use requirement

in construction and municipal engineering, in order to make the digging soil dry state, mostly using vacuum well point dewatering unit to reduce the underground water level, embedding a certain number of before excavation well point pipe, using vacuum pump pumping groundwater, make water landing in low, keep dry and foundation pit, maintain normal construction. Now is to introduce the use requirement of well point drop pumps.
one, well point drop water pump characteristic
( Equipment light: compact structure, small volume, narrow construction site, also can enter can also fell deep, is advantageous to the foundation pit excavation.
( Good performance: high vacuum degree, water output is big, depth of the suction can reach. M, can make the excavation depth increased accordingly.
( Reliable operation: the unit without mechanical friction parts, is not easy to malfunction. Vacuum pump adopts high-performance mechanical seal, often need to change the sealing parts.
2, well point drop water pump use requirement
( Field use must be placed, which had sound foundations, smooth. Tank cannot enter sundry. Field use, motor parts must put the manufacturer provide awnings.
( When using the well point dewatering system was conducted under the vacuum state, asked where the pipeline interface sealing is good, otherwise will greatly reduce the efficiency.
( Must put the water tank filled with water before use, open the inlet pneumatic valve, start the vacuum pump and treat groundwater pumping up later, according to the size of the water yield, pneumatic valve slowly down into the water.
( Well point dewatering system in the layout of the unit and well pipe is according to the size of the foundation pit, depth, soil and underground water level, flow depth and precipitation. Using vacuum low displacement large at the beginning of its size related to water depth, and then, displacement reduce vacuum degree increase, lower underground water level.
( Vacuum degree of work in the general case of the unit can reflect the precipitation in the well point in the process of water level, the imported vertical distance from the unit. Such as vacuum - 。 MPa, water level meters about at this time.
( Filtering barrel must be cleaned regularly, in order to avoid impurity into damages to the pump, vacuum pump down for a long time need not, should be in light of the water in the water tank and pump, in order to avoid corrosion and frost crack.