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High-flow self-priming centrifugal pump

A technology of self-priming pumps and centrifugal pumps, applied in the field of large-flow self-priming centrifugal pumps, which can solve the problems of increasing jet surface area, slow water supply speed, and low water pump efficiency, so as to increase water supply speed, reduce volume, and improve water pump efficiency. efficiency effect

Inactive Publication Date: 2006-05-24
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the existing large-flow self-priming pumps, such as slow water supply speed and low pump efficiency, the present invention provides a multi-nozzle self-priming pump. The nozzle divides the limited flow of a self-priming pump into multiple jets, thereby increasing the surface area of ​​the jets and achieving the problem of increasing the water supply speed of a large-flow self-priming pump

Method used

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  • High-flow self-priming centrifugal pump

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Embodiment Construction

[0024] exist figure 1 Among them, impeller shaft (1), impeller (2), shaft seal (3), nozzle group (5), S-shaped elbow (9), water pump outlet diffuser pipe (11), water pump outlet diffuser pipe to nozzle The large channel (10) between the inlets forms the main part of this embodiment together with the self-priming pump casing (6), and the spring (7) and the valve plate (8) are used to close the inlet of the nozzle group (5), which can improve the performance of this embodiment. The water pump efficiency of the embodiment, the water filling hole plug (14) is to open the water filling hole before starting, and the working machine (electric motor or internal combustion engine, etc.) is connected with the present embodiment by the working machine coupling frame (4) and the impeller shaft (1). Into one body, the water inlet pipeline (12) is connected to the upper end of the S-shaped elbow (9), and the water outlet pipeline (13) is connected to the top of the outlet diffusion pipe (11...

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Abstract

A large flow self-suction centrifugal pump consists of S-shaped curve pipe whose upper end connected with water inlet pipeline and lower end communicated with inlet of impeller, plurality of nozzles set on outer side of S-shaped curve pipe, a large duct from outlet extended pipe to inlet of nozzle, the spring valve board can be installed or not be installed in inlet of nozzle. Said invention raises water pumping speed and efficiency.

Description

Technical field [0001] The present invention is a large-flow self-priming centrifugal pump, referred to as self-priming pump, which belongs to the general mechanical product - pump category, especially can rely on a small amount of water stored in the pump, use the centrifugal impeller to pump out the air in the water inlet pipeline, and use atmospheric pressure to pump out the water. A self-priming pump that is drawn up from the water in the inlet pool below the pump inlet. Background technique [0002] At present, the known self-priming pumps are divided into internal mixing type and external mixing type, and the internal mixing type is divided into two types: injection device and no injection device. The internal mixing type self-priming pump with injection device has fast water supply, The advantage of high suction lift has been widely used in small self-priming pumps. This injection device is actually a jet pump, which is mainly composed of nozzles, mixing chambers and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D9/02
Inventor 陆伟刚
Owner JIANGSU UNIV
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