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Double suction pump mechanical seal flow equalizing ring for heat supply network circulation

A double-suction pump and flow ring technology, which is applied to the components, pumps, and pump components of the pumping device for elastic fluids, can solve the problems of impurity accumulation, small particles, coking, etc., to extend the service life, enhance the Sealing performance, the effect of avoiding the accumulation of impurities

Inactive Publication Date: 2012-02-08
SHANGHAI KAIQUAN PUMP IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the pumped liquid has poor liquid quality, turbidity, and small particles in the later stage, it will lead to accumulation of impurities and coking, and spots will appear on the end faces of the dynamic and static rings.

Method used

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  • Double suction pump mechanical seal flow equalizing ring for heat supply network circulation
  • Double suction pump mechanical seal flow equalizing ring for heat supply network circulation
  • Double suction pump mechanical seal flow equalizing ring for heat supply network circulation

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0013] Depend on Figure 2A , Figure 2B , image 3 , Figure 4 It can be seen that in the double-suction pump mechanical seal flow equalizing ring for heat network circulation of the present invention, the described flow equalizing ring 107 is fixed in the mechanical seal gland 102 or the mechanical seal cavity 105; the shape of the described flow equalizing ring is A circular ring with a thickness B of 24mm-26mm and a trapezoidal groove in section is evenly arranged with n=6-8 through holes on the circumference, and the diameter of the through holes is d=8-10mm.

[0014] image 3 , Figure 4 Middle: mechanical seal flushing liquid 100, mechanical seal flushing pipe 101, mechanical seal static ring 103, mechanical seal dynamic ring 104, mechanical seal shaft sleeve 106 and inlet section A of mechanical seal flushing liquid.

[0015] Fix t...

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PUM

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Abstract

The invention relates to a double suction pump mechanical seal flow equalizing ring for heat supply network circulation. The flow equalizing ring is fixed in a mechanical seal gland or mechanical seal cavity and has a shape of a circular ring with the thickness of 24 to 26mm and a trapezoid groove-shaped cross section, wherein n (6 to 8) through holes are uniformly formed on the circumference of the circular ring, and the diameter d of each through hole is 8 to 10mm. The invention has the advantages that: the problems that impurities are accumulated and coked and spots possibly occur on end faces of a dynamic ring and a static ring because pumped liquid is low in quality can be solved, friction heat of the seal end face is timey conducted, and the influence of a high-temperature medium is reduced, so that sealing performance is effectively enhanced, and the service life of a mechanical seal is prolonged.

Description

technical field [0001] The invention relates to a double-suction pump, in particular to a mechanical seal structure of the double-suction pump. Background technique [0002] At present, double-suction pumps are mainly used to pump clear water or liquids whose physical and chemical properties are similar to clear water. Depend on figure 1 Visible (in the figure: mechanical seal flushing liquid 100, mechanical seal flushing pipe 101, mechanical seal gland 102, mechanical seal static ring 103, mechanical seal dynamic ring 104, mechanical seal cavity 105, mechanical seal shaft sleeve 106): double suction The shaft seal of the pump is located in the suction low-pressure area. When the inlet pressure is ≤0.03MPa, in order to cool, lubricate and flush the seal cavity and prevent air from leaking into the pump, the pump must be equipped with a return pipe component. The high-pressure water in the high-pressure chamber (chamber) enters the shaft seal chamber and acts as a water sea...

Claims

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Application Information

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IPC IPC(8): F04D29/08
Inventor 邓帮华
Owner SHANGHAI KAIQUAN PUMP IND GROUP
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