Open type pitot tube pump

A pitot tube pump and pump casing technology, which is applied in the field of fluid pumps, can solve problems such as liquid leakage, and achieve the effects of prolonged service life, small swing, and reduced failure rate

Active Publication Date: 2016-10-05
滁州市智慧水务科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an open pitot tube pump, which aims to solve the problem of liquid leakage caused by the leakage of the mechanical seal of the pump. It provides a mechanical seal arranged in the impeller rotor cavity, and the mechanical seal is allowed to have a certain amount of leakage ( Leakage liquid in the rotor cavity) without affecting the normal use of the pump

Method used

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  • Open type pitot tube pump

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Embodiment Construction

[0012] Below by embodiment, and in conjunction with accompanying drawing, the present invention will be further described:

[0013] Such as figure 1 As shown in the open Pitot tube pump, the pump shaft 3 is mounted on the bearing 2 in the pump casing 1 formed by the fixed connection of the pump body 11 and the pump cover 12, and the end of the pump shaft 3 is fixedly connected with the impeller body 41 and the impeller cover 42. The formed impeller 4 is provided with a mechanical seal 5 between the impeller suction port 6 and the pump suction port channel 91 . This impeller 4 is an open impeller, that is, its end has an opening, the impeller channel 7 is radial in the radial direction and the impeller 4 has a hollow rotor cavity 43, and the pump cover 12 is provided with a rotor cavity facing the impeller 4 The pump suction inlet flow channel 91 that stretches in 43, the pump suction inlet flow channel 91 forms a channel with the impeller suction inlet 7.

[0014] On the sid...

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Abstract

The invention aims to provide an open type pitot tube pump which aims to solve a liquid leakage problem, caused by mechanical seal leakage, of the pump. The invention provides the pump, wherein a mechanical seal of the pump is arranged in an impeller rotor cavity, and the mechanical seal is permitted to have certain leakage amount (a leaked liquid being in the rotor cavity) while normal use of the pump is not affected. The open type pitot tube pump is characterized in that a pump shaft is arranged in a pump case through a bearing frame, wherein an impeller is fixedly arranged on the pump shaft by connecting; the impeller is provided with a hollow rotor cavity; a static pitot tube which is provided with a suction inlet, and communicates with an outlet of the pump is arranged in the impeller rotor cavity. One end of the pump case is provided with a pump suction inlet which communicates with the suction inlet in the impeller rotor cavity through a channel. The open type pitot tube pump is characterized in that a runner of the impeller rotor cavity is radial in the radial direction, wherein a runner of the pump suction inlet is concentric with the shaft; and the mechanical seal is arranged between the suction inlet in the impeller rotor cavity and the runner of the pump suction inlet.

Description

technical field [0001] The present invention relates to a fluid pump. Background technique [0002] In petroleum, chemical, fertilizer, metallurgy, mining, carbon black, paper and other industries, pumps are essential equipment for transporting liquids. The mechanical seal is an important part of the pump. The leakage of the pump conveying liquid is mostly caused by the leakage of the mechanical seal. [0003] Leakage of pumped liquid not only pollutes the environment, but also may cause safety accidents. [0004] Pump maintenance is time-consuming, labor-intensive and expensive. [0005] The defects of the existing pitot tube pump: 1. The mechanical seal is arranged outside the impeller, so the pump with mechanical seal leakage cannot be used normally. [0006] Open rotary jet pumps were not successful due to design flaws. Contents of the invention [0007] The object of the present invention is to provide an open pitot tube pump, the purpose of which is to solve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/08F04D29/22
Inventor 徐昌
Owner 滁州市智慧水务科技股份有限公司
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