Deep well submersible pump selection method

Deep well submersible pump, Deep well submersible pump selection, deep well pump selection according to reasonably determine the required flow and head of the specifications of the vertical deep-well pump device Needed to select appropriate specifications of the deep well pump, first to determine the required the capacity and head of the deep well pump, determine the specifications of the pump. (a) the determination of water pump flow When the concrete deep well submersible pump use a well sure, should be based on the specific use of deep well submersible pump to select the proper pump flow. 1. Deep well submersible pump water from Wells in deep well pump water from Wells, it can provide maximum flow under the well flow limit, that is, the well can provide maximum flow is the maximum flow of the pump. When the deep well pump used for constant pressure water supply, its maximum flow should meet the needs of the highest water consumption, and its economic operation flow should be equal to the most commonly used water. When deep well pump water into the water tower, reservoir or pressure water storage tank, the rated flow should be slightly bigger than the average water consumption, large flow will cause the increase of the pump power, increase the cost of the device, reduces the efficiency of pump operation, affecting the operation of deep well pump device efficiency; While small flow can not meet the requirement of the use. 2. Deep well pumps for drainage, drainage with deep well pump can be used in accordance with the situation of actual displacement demands determine its maximum flow, the provisions of the general should make the selection of deep well pump flow is equal to or slightly larger than the actual displacement required. (2) the determination of pump head of deep well pump head, divided by the requirements of the pressure value output from the outlet, the water also should overcome the inside of the pump pressure loss, including the pump pipe pressure loss and higher currents generated by the pressure losses in a pump, the well water level dynamic. According to the source well pump in the usage of different occasions preliminary estimates its head: l to the water tower water supply pump head needed H = H1 + Hz + Ho type H - actual need of pump head (m) H1 - mine head, namely, move to the height of the ground water level in Wells (m) H2 - water tower height (m) Ho - loss of head of piping system (m) 2. The ground pool water supply pump head needed H = H1 + H. 3. The pressure head needed by the system water supply pump H = H1 H3 + + Ho, type of water at the H3 - outlet pressure (m)