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High-speed pump with tapered inducing wheel arranged forward

A technology of inducer and high-speed pump, which is applied to the components, pump, pump device, etc. of the pumping device for elastic fluid, can solve the problem of affecting the operation stability of high-speed pump, the decline of pump suction performance, and the low anti-cavitation performance, etc. problems, to achieve the effect of increasing the scope of use, reducing cavitation, and prolonging service life

Inactive Publication Date: 2019-01-18
ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing high-speed pumps have low anti-cavitation performance. Due to the action of the impeller, the performance of the high-speed pump will decrease if the cavitation develops to a certain extent. Decrease, affecting the running stability of the high-speed pump, and at the same time, due to the different installation positions in different occasions, it increases the difficulty of installing the high-speed pump

Method used

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  • High-speed pump with tapered inducing wheel arranged forward
  • High-speed pump with tapered inducing wheel arranged forward
  • High-speed pump with tapered inducing wheel arranged forward

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Embodiment Construction

[0025] Such as Figure 1 to Figure 3 As shown, it is a high-speed pump with a front conical inducer according to the present invention, which includes a pump body 1, an inlet flange 2 and an outlet flange 3 are arranged on the pump body 1, and a liquid inlet channel 17 is arranged in the pump body 1 and the liquid outlet pipe 20, the inlet flange 2 is connected to the liquid inlet channel 17, the outlet flange 3 is connected to the liquid outlet pipe 20, the pump shaft 4 is horizontally arranged inside the pump body 1, and the impeller 6 is fixedly connected to the pump shaft 4, and the liquid inlet A tapered passage 18 is provided between the passage 17 and the liquid outlet pipe 20, and a tapered inducer 5 is arranged on the pump shaft 4. On the left side, the conical inducer 5 matches the conical channel 18, the pump shaft 4 is connected in the pump body 1 through the bracket 16, the rear cover 7 and the bearing body 32, the bracket 16 is located at the front end of the con...

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Abstract

The invention discloses a high-speed pump with a tapered inducing wheel arranged forward. The high-speed pump comprises a pump body, a liquid inlet passage and a liquid outlet pipe are arranged in thepump body, and an inlet flange is communicated with the liquid inlet passage; an outlet flange is communicated with the liquid outlet pipe, a pump shaft is horizontally arranged in the pump body, andan impeller is fixedly connected with the pump shaft; a tapered passage is arranged between the liquid inlet passage and the liquid outlet pipe, the tapered inducing wheel is arranged on the pump shaft, and a gas storage cavity is formed in the tapered passage; a gas-liquid separation device is arranged in the liquid outlet pipe, and a height adjusting mechanism is arranged on the outer side of the pump body. Through the design of the tapered inducing wheel, the inlet area can be increased, cavitation can be conveniently compressed in the local area of the wheel edge, and therefore the anti-cavitation performance of the tapered inducing wheel is improved; in order to achieve the purpose that the impeller is higher in work efficiency, low in noises and stable in running, bubbles can be separated from liquid, the separated bubbles can enter into the gas storing cavity for storage through a vent groove, it is ensured that pressure exists in the pump body, and the running stability of thehigh-speed pump is improved.

Description

technical field [0001] The invention relates to a high-speed pump with a front conical inducer. Background technique [0002] At present, high-speed pumps with inducers are widely used in the range of small flow and high head parameters. Due to their excellent performance, high reliability and long operating life, they are widely used in petrochemical, aerospace and other fields. [0003] The existing high-speed pumps have low anti-cavitation performance. Due to the action of the impeller, the performance of the high-speed pump will decrease if the cavitation develops to a certain extent. The drop will affect the operation stability of the high-speed pump. At the same time, the installation position of the high-speed pump is different in different occasions, which increases the difficulty of the high-speed pump installation. Contents of the invention [0004] The purpose of the present invention is to provide a technical scheme of a high-speed pump with a front conical in...

Claims

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Application Information

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IPC IPC(8): F04D13/06F04D29/22F04D29/66
CPCF04D13/06F04D29/225F04D29/669
Inventor 郭晓梅施高萍刘学应林盛
Owner ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
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