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Sidestream shield pump for conveying gas-liquid mixing medium

A gas-liquid mixing and shielding pump technology, which is applied to the components, pumps, pumping devices and other directions of pumping devices for elastic fluids, can solve problems such as the inability to use conventional shielding pumps, achieves good cavitation resistance and saves construction Cost, effect of preventing corrosion

Active Publication Date: 2018-06-22
HEFEI XINHU CANNED MOTOR PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In special cases, there is a gas-liquid mixed medium, or the easy-to-vaporize medium is partially vaporized during the transportation process, resulting in a gas-liquid mixed state, and conventional canned pumps cannot be used
When it is necessary to self-prime the liquid from the bottom, the easy-to-vaporize medium will be vaporized during the self-priming process, so it is impossible to use a conventional canned pump to achieve self-priming

Method used

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  • Sidestream shield pump for conveying gas-liquid mixing medium
  • Sidestream shield pump for conveying gas-liquid mixing medium
  • Sidestream shield pump for conveying gas-liquid mixing medium

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0026] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner ", "outside", "front end", "rear end", "top", "bottom" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific o...

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Abstract

The invention discloses a sidestream shield pump for conveying a gas-liquid mixing medium, and relates to the technical field of shield pumps. The sidestream shield pump for conveying the gas-liquid mixing medium comprises a pump part and a motor, wherein the pump and the motor share one central shaft; a pump cavity communicates with a motor cavity; the pump part is provided with a suction section, a first stage impeller, a secondary stage impeller, a secondary guide vane and a discharging section; the suction section and the discharging section are located at the first end and the tail end ofthe pump part; and the secondary stage impeller and the secondary guide vane are fixedly arranged on the central shaft. The shield pump provided by the invention is provided with an impeller assemblycapable of conveying a liquid and conveying a gas, so that gas-liquid mixing conveying is realized; and meanwhile, a pressure flowing relationship of the gas and the liquid is utilized to enable theliquid to flow through the motor and be used as a circulating fluid for cooling the motor and lubricating a bearing.

Description

technical field [0001] The invention belongs to the technical field of canned pumps, and in particular relates to a side flow canned pump with a gas-liquid mixed medium. Background technique [0002] The canned pump is a special pump with no leakage, low vibration, low noise, safe and reliable. The machine-pump coaxially forms an integrated sealing structure, cancels the mechanical seal and fan, and uses sliding bearings. The motor must be cooled by circulating liquid flowing into the motor. And lubricated bearings, and when the pump is mixed with gas, the centrifugal impeller cannot achieve the function of conveying, and the entire electric pump cannot work. Therefore, the requirements for the use of canned pumps have always been to transport liquids without vaporization. [0003] In special cases, there is a gas-liquid mixed medium, or the easy-to-vaporize medium is partially vaporized during the transportation process, resulting in a gas-liquid mixed state, and conventio...

Claims

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Application Information

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IPC IPC(8): F04D31/00F04D29/06F04D29/58F04D29/18F04D13/06
CPCF04D13/0606F04D29/06F04D29/185F04D29/58F04D31/00
Inventor 韩元平
Owner HEFEI XINHU CANNED MOTOR PUMP
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