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A centrifugal pump impeller with negative pressure blades

A centrifugal pump and vane technology, which is applied to the components, pumps, and pump components of the pumping device for elastic fluids, and can solve the problems of uncertain water intake and affecting the working efficiency of the pump.

Active Publication Date: 2019-09-10
ANHUI YINLONG PUMP VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual use, due to factors such as uncertain water intake, there is often a small amount of air in the pump, which greatly affects the working efficiency of the pump.

Method used

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  • A centrifugal pump impeller with negative pressure blades
  • A centrifugal pump impeller with negative pressure blades
  • A centrifugal pump impeller with negative pressure blades

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further clarified below in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" "Respectively refers to the direction toward or away from the geometric center of a particular component.

[0017] Such as figure 1 An impeller for a centrifugal pump with negative pressure blades is shown, including an impeller 1, with uniformly distributed blades 2 provided on the impeller 1, the center of the impeller 1 is connected to the impeller shaft 4, the impeller 1, the blade 2 and the impeller shaft 4 The whole is a hollow structure, and openings are provided at the end of the impeller shaft 4 ...

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PUM

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Abstract

The invention discloses an impeller for a centrifugal pump with negative pressure blades. An impeller body is included and is provided with the blades which are uniformly distributed; an impeller shaft is connected to the center of the impeller body; the whole formed by the impeller body, the blades and the impeller shaft is of a hollow structure; the tail end of the impeller shaft and the faces,facing water, of the blades are provided with openings; and the faces, facing water, of the blades are covered with water facing face covering films. When impeller for the centrifugal pump with the negative pressure blades works, the blades of the impeller for the centrifugal pump with the negative pressure blades are of a hollow structure, negative pressure exists in the impeller for the centrifugal pump with the negative pressure blades, the water facing faces are the waterproof breathable films, during work, the impeller body is connected with a vacuum pump, the negative pressure can be generated in the blades, and air in a water pump is sucked out.

Description

Technical field [0001] The invention belongs to the technical field of centrifugal pumps, in particular to an impeller for a centrifugal pump with negative pressure blades. Background technique [0002] Centrifugal pumps work by using the rotation of the impeller to make water produce centrifugal movement. The rotating impeller drives the water in the pump casing to make high-speed rotation. The water produces centrifugal movement and is thrown to the outer edge of the impeller through the flow passage of the volute pump casing. The pressurized water pipeline flowing into the water pump. [0003] The reason why centrifugal water pumps can pump water depends on the high-speed rotation of the pump impeller, forming a low-pressure area in the pump casing, and water is sucked into the water pipe under the action of atmospheric pressure. Therefore, one of the key conditions for the normal operation of the centrifugal water pump is the water pump and the water inlet pipe. No air leaks, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/22F04D29/24F04D29/043
Inventor 吴杰孟金华王清龙汪云王文汇唐宗清徐俊东
Owner ANHUI YINLONG PUMP VALVE