Stainless steel deep well pump is divided into deep well long shaft pump and stainless steel deep well submersible pump. The deep shaft long axis pump is by the long axis rotation, the structure is complex, the mechanical attrition is quick, the accident many, the maintenance cost is high, to the water source well verticality request high, has been eliminated. Suzhou Water Supply Company more than 40 water wells are now all changed to stainless steel deep well submersible pumps, its structure is simple, light weight, easy installation and maintenance, fewer accidents, high mechanical efficiency, economical and practical. With the development of industrial and agricultural production and the improvement and improvement of the people's living standard, the deep-well submersible pump of stainless steel deep well, which is the ideal pumping water in the well, is also polluted by the shallow groundwater, The area of groundwater drop funnel, gradually expanding, the shallow groundwater level is correspondingly decreased, so the city residents use manual pressure wells are increasingly reduced, so the city's demand for groundwater is increasing, requiring the exploitation of groundwater is increasing.
(1) According to the allowable extraction of water wells, choose stainless steel deep well submersible pumps, in the hydrogeological conditions permit, and according to the amount of water wells to determine the size and type of deep well submersible pumps to determine the reasonable structure of water wells .
(2) According to the total loss of head selection of stainless steel deep well submersible pumps. (Diameter), head (number of stages) and power of the stainless steel deep well submersible pump according to the total loss of indenter required by the stainless steel deep well submersible pump to deliver the groundwater from the pump head to the ground pool or water tower. The water pressure increases in proportion to the number of impellers flowing through it. Stainless steel deep-well pump impeller immersed in water work, only the lift without suction. Rated head and the pump running head, can not differ too much, must not be higher than the actual lift of 25%. Pump head high, the required motor power, likely to cause a larger pump on the string, the light wear impeller and leaf shell, the weight of the bearing in the shell (from the limit role) easy to stick with the pump coupling, Causing the pump can not run, the motor overload winding will burn.
If a high-lift pump is used for low-head pumping, the flow will inevitably increase, even in the working range, large flow, low efficiency, high energy consumption, the surface seems to speed up pumping speed, Improve the pumping efficiency, but in fact more harm than good, should not be promoted, because the pump flow reached or exceeded the maximum amount of wells, the filter tube outside the structure will be destroyed, the light wells will be a large number of sand, 13 near the ground will sink, will endanger the safety of wells. In addition, the pump in the long-term high-lift, high flow, low efficiency, high-speed operation, pump water flow speed, will destroy the chemical balance of groundwater, dissolved substances in water precipitation, precipitation in the filter tube water gap or pore , To speed up the scaling, resulting in clogged filters, and with time congestion continues to increase, corrosion and cavitation will be advanced damage, and lead to increased consumption and electricity costs. So choose the stainless steel deep well submersible pump head must be equal to or slightly larger than the water consumption in the process of total head loss.
(3) According to the maximum allowable water extraction wells to select the deep well submersible pump. Pump pump volume must be consistent with the actual amount of water in the wells, the pump must be equal to or slightly less than the actual exploitation of water wells, or will inevitably produce strong pumping, not only shorten the life of stainless steel deep well submersible pump, Filter pumping, resulting in more than sand Chung, and even cause the wells scrapped.
(4) stainless steel deep well submersible pump diameter must be consistent with the wellbore diameter. In order to make the stainless steel deep well submersible pump from the smooth, pumping groundwater space can quickly pool, from the resistance can also reduce the pump running wear and tear, requiring water pipes and pump body parts of the body diameter is greater than the maximum diameter of the pump 20 ~ 40 Mm, that is, the largest diameter of the pump body parts and the annular gap between the wall to have 10 ~ 20 mm
(1) According to the allowable extraction of water wells, choose stainless steel deep well submersible pumps, in the hydrogeological conditions permit, and according to the amount of water wells to determine the size and type of deep well submersible pumps to determine the reasonable structure of water wells .
(2) According to the total loss of head selection of stainless steel deep well submersible pumps. (Diameter), head (number of stages) and power of the stainless steel deep well submersible pump according to the total loss of indenter required by the stainless steel deep well submersible pump to deliver the groundwater from the pump head to the ground pool or water tower. The water pressure increases in proportion to the number of impellers flowing through it. Stainless steel deep-well pump impeller immersed in water work, only the lift without suction. Rated head and the pump running head, can not differ too much, must not be higher than the actual lift of 25%. Pump head high, the required motor power, likely to cause a larger pump on the string, the light wear impeller and leaf shell, the weight of the bearing in the shell (from the limit role) easy to stick with the pump coupling, Causing the pump can not run, the motor overload winding will burn.
If a high-lift pump is used for low-head pumping, the flow will inevitably increase, even in the working range, large flow, low efficiency, high energy consumption, the surface seems to speed up pumping speed, Improve the pumping efficiency, but in fact more harm than good, should not be promoted, because the pump flow reached or exceeded the maximum amount of wells, the filter tube outside the structure will be destroyed, the light wells will be a large number of sand, 13 near the ground will sink, will endanger the safety of wells. In addition, the pump in the long-term high-lift, high flow, low efficiency, high-speed operation, pump water flow speed, will destroy the chemical balance of groundwater, dissolved substances in water precipitation, precipitation in the filter tube water gap or pore , To speed up the scaling, resulting in clogged filters, and with time congestion continues to increase, corrosion and cavitation will be advanced damage, and lead to increased consumption and electricity costs. So choose the stainless steel deep well submersible pump head must be equal to or slightly larger than the water consumption in the process of total head loss.
(3) According to the maximum allowable water extraction wells to select the deep well submersible pump. Pump pump volume must be consistent with the actual amount of water in the wells, the pump must be equal to or slightly less than the actual exploitation of water wells, or will inevitably produce strong pumping, not only shorten the life of stainless steel deep well submersible pump, Filter pumping, resulting in more than sand Chung, and even cause the wells scrapped.
(4) stainless steel deep well submersible pump diameter must be consistent with the wellbore diameter. In order to make the stainless steel deep well submersible pump from the smooth, pumping groundwater space can quickly pool, from the resistance can also reduce the pump running wear and tear, requiring water pipes and pump body parts of the body diameter is greater than the maximum diameter of the pump 20 ~ 40 Mm, that is, the largest diameter of the pump body parts and the annular gap between the wall to have 10 ~ 20 mm
Manufacturers recommend: Shenlong stainless steel deep well submersible pump
Keywords:Stainless steel deep well pump, overview, selection
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