Phosphoric acid axial-flow pump dry gas sealing device

A dry gas seal, axial flow pump technology, which is applied to the components of the pumping device for elastic fluid, the seal of the engine, the pump, etc. Stability and other issues, to achieve the effect of less power consumption, low operating cost and long service life

Inactive Publication Date: 2008-04-09
WENGFU (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing dry gas seal gas seal groove has a small transition from the outer circumference to the inside, and the deflection angle along the radial direction is large. It is mainly used for high-speed compressors and centrifugal pumps.

Method used

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  • Phosphoric acid axial-flow pump dry gas sealing device
  • Phosphoric acid axial-flow pump dry gas sealing device

Examples

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Effect test

Embodiment Construction

[0015] Phosphoric acid axial flow pump dry gas seal device, including double-end seal friction pair, spring 16, pressure plate assembly 14, connecting bolts, wherein: air seal groove 19 is engraved on the static ring, and the direction of rotation of the slot 20 is consistent with the rotation of the pump. To ensure that the air film is formed, the air seal can work normally.

[0016] The double-end seal friction pair is composed of the driving ring 3, the moving ring A9, the static ring A8, the moving ring B17, and the static ring B18. The static ring A8 is fixed on the driving ring 3, and there is a O-ring 5, the pressure plate assembly 14 are connected by connecting bolts A12 and B15, the two ends of the spring 16 are connected with the moving ring A9 and the moving ring B17, the exhaust port 2 and the air inlet 4 are opened on the pressure plate assembly 14 .

[0017] When in use: the static ring A8, the static ring B18 and the pressure plate assembly 14 are fixed on the ...

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PUM

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Abstract

The invention discloses a phosphoric acid bearing pump dry gas sealing device, comprising a dual-end sealing friction pair, a spring, a press plate component and a connecting bolt. The invention is characterized in that a gas sealing trough (19) is chiseled on a static ring; the rotation direction of a trough clearance (20) complies with the rotation direction of the pump. The dual-end sealing friction pair consists of a drive ring (3), a movable ring A(9), a fixed ring A(8), a movable ring B(17) and a fixed ring B(18); the fixed ring A(8) is fixed on the drive ring (3); an O-shaped sealing ring (5) is arranged between the fixed ring B(18) and the press plate component (14); the press plate component (14) is connected by a connecting bolt A(12) and a connecting bolt B(15); two ends of a spring (16) are connected with the movable ring A(9) and the movable ring B(17); an air outlet (2) and an air inlet (4) are both arranged on the press plate component (14). The invention has the advantages of long service life, simple troubleshooting, energy saving and consumption reduction, and low operation expense, without water entering the concentration system.

Description

technical field [0001] The invention relates to a sealing device, in particular to a sealing device of a phosphoric acid axial flow pump. Background technique [0002] The shaft seal of phosphoric acid axial flow circulating pump is currently used at home and abroad as mechanical seal and packing seal. The sealing fluid in the double-end mechanical seal has a sealing effect on the medium and can achieve zero leakage of the medium to the atmosphere, but there is a small amount The sealing liquid leaks into the medium and contaminates the medium. There is a small amount of sealing liquid leakage in the mechanical seal on the atmospheric side, which brings certain pollution to the site environment. Requires a sealed liquid circulation cooling system. Large amount of maintenance: the operation of the system is more difficult, the difficulty of on-site maintenance is increased, and there are seal installation errors. Because the seal is a contact seal, there must be friction a...

Claims

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Application Information

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IPC IPC(8): F04D29/10F16J15/40
Inventor 王邵东王平李红林
Owner WENGFU (GRP) CO LTD
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