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Sealing leakage monitoring device for slurry pump

A monitoring device and slurry pump technology, which is applied to the components, pumps, pump elements and other directions of the pumping device for elastic fluid, can solve the problem of not having a pressing force monitoring device, being unable to monitor liquid leakage in real time, and unable to monitor liquid leakage for a long time. Guaranteed pressing force and other issues to achieve the effect of improving life and reducing rust

Pending Publication Date: 2022-08-02
SHANDONG ZHANGQIU BLOWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CN109281865A proposes an improved method based on the packing seal structure, which uses the elastic force of the skeleton seal to compress the sealing ring, but is limited to the volume of the skeleton seal, cannot guarantee the compaction force for a long time, and does not have a compaction force monitoring device; CN110645182A proposes a The sealed chamber structure of the slurry pump uses a waterproof mechanism to prevent the slurry from flowing out from the connection between the pump shaft and the pump casing, avoiding the corrosion of the connected pump shaft due to long-term contact with moisture, but it cannot monitor liquid leakage in real time

Method used

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  • Sealing leakage monitoring device for slurry pump
  • Sealing leakage monitoring device for slurry pump
  • Sealing leakage monitoring device for slurry pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Attached below Figure 1-4 To further describe the present invention, a slurry pump seal leakage monitoring device, such as figure 1 As shown, it includes sealing components and monitoring components; the slurry pump includes auxiliary impeller 1, pump shaft 25, auxiliary impeller housing 2 and sealing housing 4; sealing housing 4 is installed on the side of auxiliary impeller housing 2 away from medium inlet 21 . The sealing member is arranged between the auxiliary impeller housing 2 and the pump shaft 25, and the sealing member includes a floating ring sealing member, a packing sealing member and a labyrinth sealing member.

[0039] like figure 2 and 3 As shown, the floating ring sealing component includes a floating ring 20, a floating ring sealing ring 19, a spring 16 and a spring seat 14; the floating ring 20 includes a fixedly connected annular portion and a cylindrical portion, and the contact area of ​​the annular portion and the cylindrical portion forms a ...

Embodiment 2

[0053] The difference between this embodiment and Embodiment 1 is that the inclination angle of the tapered structure 20.2 in the longitudinal section of the cylindrical portion of the floating ring 20 is 3°

[0054] The working principle of the seal leakage monitoring device of the slurry pump of the present invention: the labyrinth seal component and the floating ring seal 19 composed of the boss 20.1 and the groove 1.1 are used to prevent further leakage of the liquid passing through the auxiliary impeller 1; the floating ring 20 is adjusted by the spring 16 position, use the conical structure 20.2 of its cylindrical part and cooperate with the pressing cover 6 to press the packing sealing ring 17 to prevent further leakage of the liquid passing through the auxiliary impeller 1; when the liquid leaks to the gasket 11, the gasket 11 absorbs liquid and expands, And squeeze the washer force sensor 10, the washer force sensor 10 monitors the pressure, and the signal is transmitt...

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Abstract

The invention belongs to the technical field of slurry pump sealing, and particularly relates to a slurry pump sealing leakage monitoring device which comprises a sealing component and a monitoring component. The sealing component is arranged between the auxiliary impeller shell and the pump shaft and comprises a floating ring sealing component, a packing sealing component and a labyrinth sealing component; the monitoring component comprises a leakage monitoring assembly and a wear monitoring assembly; compared with the prior art, the slurry pump has the advantages that leakage of slurry in the slurry pump is avoided through combination of various sealing parts, the corrosion phenomenon of the joints of the pump shaft and other parts is reduced, and the service life of the slurry pump is prolonged; (2) monitoring components in the slurry pump sealing leakage monitoring device comprise a leakage monitoring assembly and an abrasion monitoring assembly; when the liquid leaks to the gasket, the alarm gives a leakage alarm; when the filler sealing ring is worn, the alarm gives out a wear alarm.

Description

technical field [0001] The invention belongs to the technical field of slurry pump seals, and in particular relates to a seal leakage monitoring device of a slurry pump. Background technique [0002] Slurry pump is a kind of mechanical equipment that increases the energy of solid and liquid mixed medium by means of centrifugal force (the rotation of the impeller of the pump) and converts electrical energy into kinetic energy and potential energy of the medium. It is mainly used in mines, power plants, dredging, Metallurgy, chemical industry, building materials and petroleum and other industries. The dynamic seal structure of the existing slurry pump has poor sealing performance, and the seals are severely worn during operation. When the pump shaft stops rotating, the liquid ring on the auxiliary impeller will fall on the pump shaft, and the slurry is easy to leak, which makes the connection easy to be rusted. , the service life is short, and it is difficult to meet the need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D7/04F04D29/12F04D29/10F04D15/00
CPCF04D7/04F04D29/126F04D29/106F04D15/0088F04D15/0077
Inventor 方树鹏谢方伟沈春丰陆健刘飞田祖织田宪华
Owner SHANDONG ZHANGQIU BLOWER