Sealing structure for molten salt pump, mounting method and molten salt pump

The technology of a sealing structure and installation method is applied to parts, pumps, and pump components of pumping devices for elastic fluids, and can solve the problems of large pressure drop of sealing gas, leakage of high-temperature molten salt, and large leakage. Achieve uniform axial clearance

Active Publication Date: 2022-08-02
济南三科泵业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] 3. The sealing gas of the molten salt pump generally leaks directly through the gap between the packing seal and the pump shaft, resulting in a relatively large leakage, resulting in a large pressure drop of the sealing gas, and the molten salt overflowing from the throttling seal cannot be completely Returning to the molten salt tank, some high-temperature molten salt leaked out

Method used

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  • Sealing structure for molten salt pump, mounting method and molten salt pump
  • Sealing structure for molten salt pump, mounting method and molten salt pump
  • Sealing structure for molten salt pump, mounting method and molten salt pump

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Embodiment Construction

[0031] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0032] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and / or combinations thereof.

[0033] As described in the background art, there are various problems in the single-stage or mult...

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Abstract

The invention discloses a sealing structure for a molten salt pump, an installation method and the molten salt pump, the sealing structure comprises a shaft sleeve, a sealing body and a clamping piece, the sealing body comprises a first sealing half body and a second sealing half body which are connected together through a connecting piece, and after the first sealing half body and the second sealing half body are connected together, a cylindrical hole is formed in the center; a plurality of circles of protrusions and grooves are arranged on an inner ring of the cylindrical hole, a plurality of circles of grooves and protrusions are arranged on an outer ring of the shaft sleeve, the protrusions are inserted into the grooves, axial gaps formed by the sealing body provided with the clamping pieces and the grooves and the protrusions of the shaft sleeve are uniform and consistent, and after the molten salt pump rotor component is lifted and adjusted, the sealing body is sealed. The lower portion of the sealing body is fixed to a base of the molten salt pump through a connecting piece, then the shaft sleeve is fixed to a pump shaft through the connecting piece, finally the clamping piece is removed, and assembling is completed.

Description

technical field [0001] The invention belongs to the technical field of molten salt pumps, and particularly relates to a sealing structure, an installation method and a molten salt pump of a single-stage or multi-stage single-tube type high-temperature molten salt pump. Background technique [0002] High temperature molten salt pumps are widely used in solar thermal power generation, valley power energy storage, chemical industry, metallurgy, light industry and other industries that require molten salt heat exchange. High temperature molten salt pump is also called molten salt submerged pump, which is divided into single tube and double tube. Single-tube high-temperature molten salt pumps are divided into single-stage and multi-stage. Most of the pumping media are sodium nitrate, potassium nitrate and sodium nitrite with different components, commonly known as molten salt. The maximum operating temperature of molten salt can reach 565 °C. [0003] At present, the seal of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/10F04D29/60
CPCF04D29/106F04D29/108F04D29/605Y02E70/30
Inventor 张建军周小鹏杨浩戴子明
Owner 济南三科泵业有限公司
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