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Static axial double-end-face mechanical sealing structure, stirrer and stirred tank

A mechanical seal and double-end face technology, which is applied to engine seals, mechanical equipment, mixer accessories, etc., can solve problems such as failure to meet the high speed requirements of the agitator, failure of mechanical seals, etc., to ensure the effect of mechanical seals and avoid bending deformation. Effect

Inactive Publication Date: 2016-01-27
ZIBO SANTIAN CHEM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the mechanical seal fails due to the sealing structure of the prior art at high speed, and cannot meet the high speed requirement of the agitator for some chemical reactions

Method used

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  • Static axial double-end-face mechanical sealing structure, stirrer and stirred tank

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the present invention provides a static type axial double-end mechanical seal structure, which is installed on the stirring shaft 1 and arranged in the sealing box B, wherein the stirring shaft 1 is covered with a shaft sleeve 2, and the The sealed box B is composed of the first static ring seat 5, the second static ring seat 11 and the cooling water jacket 13, and passes between them (the first static ring seat 5, the second static ring seat 11 and the cooling water jacket 13) Bolt fixed, the first static ring seat 5 is set on the outside of the shaft sleeve 2 and located under the bearing seat 4, and the second static ring seat 11 is set on the outside of the stirring shaft 1 and located on the first Below the static ring seat 5, the cooling water jacket 13 is located between the first static ring seat 5 and the second static ring seat 11, and the stationary axial double-end mechanical seal structure includes the first A spring 6, a first s...

Embodiment 2

[0051] see figure 1 , the present invention provides an agitator, the agitator includes a stirring shaft 1, a shaft sleeve 2, a bearing 3, a bearing seat 4, a sealing box 13 and a static axial double-end mechanical seal structure,

[0052] The static axial double-end mechanical seal structure is installed on the stirring shaft 1 and arranged in the sealing box B, wherein the shaft sleeve 2 is sleeved on the outside of the stirring shaft 1, and the sealing The box B is composed of the first static ring seat 5, the second static ring seat 11 and the cooling water jacket 13, and bolts are used between them (the first static ring seat 5, the second static ring seat 11 and the cooling water jacket 13). fixed, the first static ring seat 5 is set on the outside of the shaft sleeve 2 and located under the bearing seat 4, and the second static ring seat 11 is sleeved on the outside of the stirring shaft 1 and located on the first static ring seat. Below the ring seat 5, the cooling wa...

Embodiment 3

[0062] see figure 1 , The present invention provides a stirred tank, including a tank body, the stirred tank also includes the agitator, and the agitator is arranged on the tank body. The structure of the stirrer in the third embodiment is exactly the same as that in the second embodiment, and the description of the stirrer will not be repeated in this embodiment.

[0063] Since the stirred tank of the present invention includes the stirrer in Embodiment 2, the mechanical seal structure of the present invention is a stationary axial double-end mechanical seal, that is, the first spring 6 is installed under the first static ring 7, and the second spring 12 is installed under the second static ring 10, the first spring 6 and the second spring 12 do not rotate with the stirring shaft 1, avoiding the possibility of bending deformation, ensuring the mechanical sealing effect, and meeting the high requirements of certain chemical reactions on the agitator. RPM requirements. The ag...

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Abstract

The invention discloses a static axial double-end-face mechanical sealing structure, a stirrer and a stirred tank and belongs to the field of chemical engineering. The static axial double-end-face mechanical sealing structure is arranged on a stirring shaft and arranged in a sealing box. The stirring shaft is sleeved with a shaft sleeve. The static axial double-end-face mechanical sealing structure comprises a first spring, a first static ring, a dynamic ring, a static sealing piece, a second static ring and a second spring which are arranged from top to bottom. The first spring is arranged below the first static ring. The second spring is arranged below the second static ring. Neither the first spring nor the second spring rotates along with the stirring shaft, the possibility of bending deformation is avoided, the mechanical sealing effect is guaranteed, and the requirement of some chemical reactions for the high rotating speed of the stirrer is met. In this way, the stirrer with the static axial double-end-face mechanical sealing structure can meet the high-rotating-speed requirement, and thus the stirrer tank with the stirrer can meet the high-rotating-speed requirement.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a static axial double-end mechanical seal structure, a stirrer and a stirring tank. Background technique [0002] There are hundreds of types of stirred tanks used in industry, which can be divided into two categories: homogeneous reactors and heterogeneous reactors according to the phase state of the reaction materials. The stirred kettle includes a stirrer and a kettle body, the stirrer includes a stirring shaft, and a shaft sealing structure is arranged on the stirring shaft. [0003] At present, the standard axial double-end mechanical seal structure is usually used in the mixer. The mechanical seal structure is set on the stirring shaft and includes the first static ring, the first moving ring, the spring, and the second moving ring according to the installation sequence from top to bottom. Ring and the second static ring, between the first moving ring and the stirring shaf...

Claims

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Application Information

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IPC IPC(8): F16J15/34B01F15/00
Inventor 胡晓艳王千祥
Owner ZIBO SANTIAN CHEM EQUIP CO LTD
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