Deep well submersible pump selection method

Deep well 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 deep well pump capacity and head, determine the specifications of the pump. ( A) Must submersible deep-well pump flow is the use of specific 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, its biggest flow can offer by 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. Deep well pumps for drainage, drainage with deep well pump can be used in accordance with the situation of actual displacement requirements 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) 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 pressure inside the pump depletion, including water pump pipe in 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 for water pump to the water tower head needed by the actual H = H1 + Hz + H - Ho type actual need lift ( m) H1— — Downhole head, that is, move to the height of the ground water level in Wells ( m) H2— — The water tower height ( m) Ho— — Loss of head of piping system ( m) The ground pool for water pump head needed by the actual H = H1 + H. The pressure head needed by the system for water pump the actual H = H1 H3 - + H3 + Ho type - Outlet of the water pressure ( m) 。
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