Single downdraft electric driving pump structure capable of automatically balancing axial force

A submersible electric pump and automatic balancing technology, which is applied in the direction of pumps, pump devices, non-variable pumps, etc., can solve the problems of not being able to bear the axial thrust

Inactive Publication Date: 2010-07-21
SHANXI TIANBO PUMP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Calculated on the basis of a flow rate of 300 tons per hour and a head of 500 meters, ...

Method used

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  • Single downdraft electric driving pump structure capable of automatically balancing axial force
  • Single downdraft electric driving pump structure capable of automatically balancing axial force
  • Single downdraft electric driving pump structure capable of automatically balancing axial force

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Embodiment Construction

[0016] Such as figure 1 As shown, the structure of the present invention is a submersible electric pump with downward suction, single suction and automatic balance axial force, including a pump body, a motor 1, an impeller 2, a water inlet 3 and a water outlet 4 of the pump body, and the whole pump body is provided with a constant pressure cover 19 , the water inlet is set at the lower end of the pump body as a down-suction structure, including the water inlet section 5, the middle water diversion section 6 and the upper water outlet section 7 from bottom to top, and the motor is installed at the position of the water inlet section; the motor is connected with The cable 8 is drawn out, and the impeller is installed in the middle water diversion section. The middle water diversion section is composed of a multi-stage pump. The lower pump body 9 is provided with a positive guide vane 10, and the upper pump body 11 is provided with a reverse guide vane 12. , the positive guide va...

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PUM

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Abstract

The invention discloses a single downdraft electric driving pump structure capable of automatically balancing an axial force, which comprises a motor, impellers, a pump body water inlet and a water outlet, wherein the water inlet is formed at the lower end of a pump body, has a downdraft structure and comprises a water intake section, a middle water distribution section and an upper discharge section from bottom to top; the motor is arranged at the position of the water intake section; the impellers are arranged in the middle water distribution section which consists of a multi-stage pump; forward guide vanes are arranged in a lower-stage pump body; backward guide vanes are arranged in an upper-stage pump body; and the forward guide vanes and the backward guide vanes have opposite rotating directions and symmetrical structures. The single downdraft electric driving pump structure capable of automatically balancing the axial force adopts the structure with one-way water intake and oppositely arranged impellers and also adopts a mode of symmetrically arranging the forward guide vanes and the backward guide vanes so as to completely eliminate the coaxial force; and a difference between forward and backward rotation stages of the forward guide vanes and the backward guide vanes can be one stage so as to control the direction of the coaxial force, make the motor run in an optimal functional mode, and greatly prolong the service life of the electric pump.

Description

technical field [0001] The invention relates to a structure of a downward-suction single-suction self-balancing axial force submersible pump. Background technique [0002] In coal mine production, drainage electric pump is very important equipment, and the electricity it consumes in coal mine production generally accounts for 10-30% of the total mine electricity consumption. Therefore, improving mine drainage to achieve economical operation and improving the efficiency of the drainage system from all aspects is not only conducive to the safe production of mines, but also an important measure to save electricity. [0003] Considering the particularity of mine drainage with high suddenness and large flow rate, the huge axial thrust generated by the operation of the water pump must be transmitted to the motor rotor. The greater the flow rate, the higher the lift, the greater the axial force. Calculated on the basis of a flow rate of 300 tons per hour and a head of 500 meters,...

Claims

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Application Information

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IPC IPC(8): F04D13/10
Inventor 杨照杨晓东
Owner SHANXI TIANBO PUMP CO LTD
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