Integrated submersible electric pump blade adjusting device
A submersible electric pump and blade adjustment technology, applied in pump devices, components of pumping devices for elastic fluids, non-variable-capacity pumps, etc., can solve problems such as high risk, affecting drainage efficiency, and line winding interference. , to achieve the effect of improving security, stability and high security
Active Publication Date: 2021-12-21
HEFEI HENGDAJIANGHAI PUMP IND CO LTD
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Problems solved by technology
The current submersible pumps cannot adjust the deflection angle of the blade without stopping the machine, and often need to stop the machine to adjust the deflection angle of the blade, which greatly affects the drainage efficiency; if the circuit is used to control the deflection of the blade, during the rotation of the impeller hub, too many lines It may be entangled and interfered, which is very dangerous, so it needs to be solved urgently
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[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0037] see Figure 1~3 , In the embodiment of the present invention, the integrated submersible pump blade adjustment device includes the impeller hub 2 inside the fixed pump casing 6, and the impeller hub 2 is arranged in sequence along the axial direction by an adjustment chamber 3, a drive chamber 4 and a power chamber 5.
[0038] The impeller hub 2 is provided with a blade 1 at a position corresponding to the adjustment chamber 3. The number of blades 1 is...
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The invention discloses an integrated submersible electric pump blade adjusting device. An impeller hub located in a pump shell is provided with blades capable of rotating relative to the impeller hub to change the deflection angle, and an adjusting cavity used for accommodating an adjusting connecting rod, a driving cavity and a power cavity used for providing power for a hydraulic motor are sequentially formed in the impeller hub in the axial direction; and a stator extending into the power cavity and matched with the impeller hub in a sealing mode is fixed to the pump shell, a circuit outside the pump shell supplies power to the stator, a rotor matched with the stator in an electromagnetic induction mode is arranged in the power cavity, the rotor is coaxially fixed to a rotating shaft of the hydraulic motor and rotatably matched with the impeller hub, and the rotor provides power for the hydraulic motor while rotating under electromagnetic induction. According to the invention, the deflection angle of the blade is adjusted without shutdown in the working process; and in the rotating process of the impeller hub, no line rotates along with the impeller hub, stability and safety are high in the working process, and the problem of line entanglement interference is solved.
Description
technical field [0001] The invention relates to the field of water conservancy transportation, in particular to an integrated submersible electric pump blade adjustment device. Background technique [0002] Submersible electric pump refers to a kind of water pump in which both the impeller of the pump body and the motor driving the impeller are submerged in water, and it is widely used in the field of water conservancy transportation. [0003] In many drainage sites, due to large changes in water level, it is necessary to adjust the deflection angle of the blades to meet the flow and head requirements of different working conditions, so that the efficiency of the pump is at a better working condition point. The current submersible pumps cannot adjust the deflection angle of the blade without stopping the machine, and often need to stop the machine to adjust the deflection angle of the blade, which greatly affects the drainage efficiency; if the circuit is used to control the...
Claims
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IPC IPC(8): F04D29/24F04D15/00F04D13/08
CPCF04D29/247F04D15/0055F04D13/086
Inventor 李星梁樑朱庆龙程康恒赵丽丽徐宇翔李晓龙龚鹏黄福洋赵伟龙
Owner HEFEI HENGDAJIANGHAI PUMP IND CO LTD