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Mechanical seal of anti-corrosion centrifugal pump

A technology of mechanical seals and centrifugal pumps, applied in mechanical equipment, parts of pumping devices for elastic fluids, pumps, etc., can solve problems such as seal wear, leakage, lack of cooling and compensation devices, etc., to improve service life , Prevent wear and improve sealing effect

Inactive Publication Date: 2012-03-21
杨燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of a good cooling and compensation device for this sealing device, during the high-speed rotation of the pump, the mutual friction between the dynamic and static rings can easily cause wear and leakage of the seal.

Method used

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  • Mechanical seal of anti-corrosion centrifugal pump
  • Mechanical seal of anti-corrosion centrifugal pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] from figure 1 It can be seen from the figure that a mechanical seal of a corrosion-resistant centrifugal pump includes a static ring 2, a moving ring 8 and a static ring seat 7, a shaft sleeve 4 is set on the pump shaft 5, and the moving ring 8 is set on the shaft On the sleeve 4, the static ring 2 is installed on the rear pump cover 1 through the static ring seat 7, and a spring seat 6 is set on the bushing 4, and the spring seat 6 is fixed on the rear pump cover 1, A compression spring 3 is arranged between the static ring seat 7 and the spring seat 6 , and a cooling water inlet and outlet channel 9 is arranged on the rear pump cover 1 .

[0015] Adjusting screw holes 10 are arranged on the spring seat 6 .

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Abstract

The invention discloses a mechanical seal of an anti-corrosion centrifugal pump, comprising a stationary ring, a movable ring and a stationary ring base. A shaft sleeve is sleeved on a pump spindle. The movable ring is sleeved on the shaft sleeve. The stationary ring is installed on a rear pump cover through the stationary ring base. A spring base is sleeved on the shaft sleeve. The spring base is fixed on the rear pump cover. A pressure spring is arranged between the stationary ring base and the spring base. A cooling water access channel is arranged on the rear pump cover. On the one hand, the temperature of the stationary ring and the movable ring is reduced by the cooling water to improve the sealing effect there-between, on the other hand, the particles from abrasion of the stationary ring and the movable ring are washed by circulation of the cooling water to prevent the particles from accelerating abrasion between the stationary ring and the movable ring and to improve the service lives of the stationary ring and the movable ring. The product is widely applied to the anti-corrosion centrifugal pumps for conveying highly corrosive liquid in the industrial production processes such as petrochemical industry, metallurgy, smelting, electric power, synthetic fibre and food, etc.

Description

technical field [0001] The invention relates to a corrosion-resistant centrifugal pump, in particular to a mechanical seal of the corrosion-resistant centrifugal pump. Background technique [0002] At present, the corrosion-resistant pumps commonly used in petrochemical, metallurgy, smelting, electric power, synthetic fiber, food and other industrial production processes at home and abroad, because the transported corrosive liquid contains solid particles, and the temperature of the transported liquid sometimes reaches Above 100°C, higher requirements are put forward for the sealing device of the pump. Once the pump leaks, the strong corrosive liquid transported will corrode the parts of the pump on the one hand, greatly reducing the service life of the pump, and seriously scrapping the pump ; On the other hand, the leaked strong corrosive liquid will pollute the environment and even endanger personal safety. The seals of existing pumps generally adopt single-end mechanical...

Claims

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Application Information

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IPC IPC(8): F04D29/12F04D29/58
Inventor 杨燕
Owner 杨燕
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