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Medium-high-lift total-cross-flow submersible mixed flow electric pump

A mixed-current, high-lift technology, which is applied to components, pumps, and pump components of elastic fluid pumping devices, can solve the problems of bearing cavity leakage and water ingress, bearing burns, etc., and solve the problem of bearing leakage and water ingress. Effect

Pending Publication Date: 2018-11-16
邓悌康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the key technical problems to be solved by the present invention is to overcome the defect of the existing full-flow submersible electric pump bearing cavity leakage and water inflow, the second key technical problem is to solve the burn of the shaft current to the bearing, and the third key technical problem is to form The dynamic balance of the medium and high lift mixed flow pump provides a medium and high lift full through flow submersible mixed flow electric pump, so as to solve the above problems

Method used

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  • Medium-high-lift total-cross-flow submersible mixed flow electric pump

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Embodiment 1

[0019] see Figure 1-2, the present invention provides a technical solution: a medium-high head full-through-flow submersible mixed-flow electric pump, including an impeller 1, a single bearing cavity 4, a rotor 7, an outlet device 13, a guide vane 10, a water outlet cylinder 14 and a water outlet guide vane body Assemblies 22, guide vane 10, water outlet cylinder 14, flange 11 are welded or cast into water outlet guide vane body 9, outlet device 13 is located outside water outlet guide vane body 9, inside water outlet guide vane body 9 is installed a single bearing cavity 4, single The bearing cavity 4 is located inside the guide vane body 9 on one side of the full-through-flow motor. The single bearing cavity 4 completely blocks the electric spark burn of the bearing due to the shaft potential generated by the unbalanced magnetic circuit of the stator, which can completely eliminate the shaft current. Burning and damage to the rolling bearing 3 is beneficial to prolong the s...

Embodiment 2

[0023] see Figure 1-2 , the present invention provides a technical solution: a medium-high head full-through-flow submersible mixed-flow electric pump, including an impeller 1, a single bearing cavity 4, a rotor 7, an outlet device 13, a guide vane 10, a water outlet cylinder 14 and a water outlet guide vane body Assemblies 22, guide vane 10, water outlet cylinder 14, flange 11 are welded or cast into water outlet guide vane body 9, outlet device 13 is located outside water outlet guide vane body 9, inside water outlet guide vane body 9 is installed a single bearing cavity 4, single The bearing cavity 4 is located inside the guide vane body 9 on one side of the full-through-flow motor. The single bearing cavity 4 completely blocks the electric spark burn of the bearing due to the shaft potential generated by the unbalanced magnetic circuit of the stator, which can completely eliminate the shaft current. Burning and damage to the rolling bearing 3 is beneficial to prolong the ...

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Abstract

The invention discloses a medium-high-lift total-cross-flow submersible mixed flow electric pump. The medium-high-lift total-cross-flow submersible mixed flow electric pump comprises an impeller, a single bearing cavity, a rotor, a wire outlet device, a guide blade, a water outlet barrel and a water outlet guide blade body assembly. The guide blade is welded to the water outlet barrel and a flangeor cast into a water outlet guide blade body. The single bearing cavity completely obstructs electric spark burning to a bearing from axis current, wherein the axis current is formed by the axis electric potential generated by a stator due to magnetic path unbalance. The rotor is arranged on a stretching-out shaft extension, a double support beam bearing is arranged in the single bearing cavity,the single bearing cavity is provided with a first pressure measuring pipe and a first electric contact pressure meter, the lowest position of the single bearing cavity is provided with an air inlet pipe, and a second pressure measuring pipe for pressure converted through the water pump lift and a second electric contact pressure meter are arranged in the water outlet guide blade body. The medium-high-lift total-cross-flow submersible mixed flow electric pump solves the problems that all total-cross-flow submersible electric pump bearings leak, water inflows and the axis current is generated and the problem about rigidity, and a guarantee is provided for safety running of the total-cross-flow submersible mixed flow pump.

Description

technical field [0001] The invention relates to a submersible electric pump, in particular to a medium-high-lift full-through-flow submersible mixed-flow electric pump, and relates to the technical field of submersible electric pumps. Background technique [0002] The full-flow submersible axial flow pump developed on the basis of the submersible axial flow pump refers to the wet stator submersible pump in which the pump impeller is placed in the inner cavity of the drive motor rotor. The energy transmission and transformation process is determined by the rotation of the rotor. The required energy is obtained by the stator from the power supply or the power grid, and the stator winding connected to the power supply obtains electric energy to form a rotating magnetic field. The rotor of the cutting motor squirrel cage generates electromagnetic torque, which drives the impeller of the axial flow pump built in the rotor to rotate around the axis together. To produce the functio...

Claims

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Application Information

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IPC IPC(8): F04D13/08F04D29/046F04D29/059F04D29/40F04D29/08F04D29/18F04D29/66
CPCF04D13/08F04D29/046F04D29/059F04D29/086F04D29/18F04D29/406F04D29/669
Inventor 邓悌康耿少杰叶丽珍陈弘皓孙岩岩
Owner 邓悌康
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