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Mechanical seal for rotary shell pump

A technology of mechanical seals and rotary casing pumps, which is applied in the direction of mechanical equipment, pumps, pump components, etc., can solve the problems of difficult seal design, limited axial size, etc., meet the requirements of function and installation, compact seal structure, shorten shaft effect on space

Inactive Publication Date: 2015-06-10
DALIAN HUAYANG SEALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its outstanding advantages, it has broad application prospects in industries such as rubber, petroleum, chemical industry, metallurgy, food, papermaking, printing and dyeing, etc. The rotary casing pump itself is small in size and compact in structure. The axial dimension allowed by the seal is very limited, which brings certain difficulties to the design of the seal

Method used

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  • Mechanical seal for rotary shell pump
  • Mechanical seal for rotary shell pump

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Embodiment Construction

[0014] Such as picture As shown in 1 and 2, the present invention includes a non-compensating ring 1, a compensating ring 3, a compensating ring seat 4, a spring 5, and a spring seat 7, and the non-compensating ring 1, compensating ring 3, and compensating ring seat 4 are set on the pump shaft , the compensation ring 3 adopts an embedded structure and is embedded on the compensation ring seat 4. The sealing structure does not need to use a push ring, which reduces the number of parts and shortens the axial space. The spring seat 7 is set on the compensation ring seat 4, a spring 5 is installed between the two, and the spring 5 compensates for the entire seal. The non-compensating ring 1 is located on the pump shaft, and is pressed on the shaft shoulder of the pump shaft by locking devices such as lock nuts. The spring seat 7 and the pump body are prevented from rotating through the installation pin 10, the compensation ring seat 4 is provided with a lug 11, and the spring sea...

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Abstract

The invention discloses a mechanical seal for a rotary shell pump. The mechanical seal comprises a non-compensation ring, a compensation ring, a compensation ring seat, a spring and a spring seat, wherein a pump shaft is sleeved with the non-compensation ring, the compensation ring and the compensation ring seat, the compensation ring is mounted on the compensation ring seat, the compensation ring seat is sleeved with the spring seat, and the spring is mounted between the spring seat and the compensation ring seat. The mechanical seal has the characteristics as follows: the whole seal is compact in structure, the number of parts is decreased, required axial space is reduced, and function and mounting requirements of the seal for the rotary shell pump are fully met.

Description

Technical field [0001] The invention involves the field of mechanical sealing, which specifically involves mechanical seal for a rotary shell pump. Background technique [0002] The rotary shell pump is a new type of pump with a unique structure and working principle. Because manufacturers and users know little about the characteristics and structural principles of the pump, they are used less in China.However, due to its outstanding advantages, there are broad application prospects in rubber, petroleum, chemical, metallurgy, food, papermaking, printing and dyeing and other industries.The axial size allowed by the seal is very limited, which brings certain difficulties to the design of the seal. Invention content [0003] The purpose of the present invention is to overcome the inadequate problems and provide a mechanical seal for a rotary shell pump. [0004] The technical solution used by the present invention to achieve the above purpose is: a mechanical seal for a rotary shel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/08
CPCF04D29/126
Inventor 肖沛沛张宝君
Owner DALIAN HUAYANG SEALS
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