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A Combined Sealing System of Reactor Stirring Shaft and Its Application

A combined sealing and reaction kettle technology, applied in the direction of engine sealing, separation method, filtration separation, etc., can solve the problems of unexpected stop of stirring, sealing failure, etc., and achieve the effect of improving stability, ensuring cleanliness, and improving safety performance.

Active Publication Date: 2020-08-28
中化蓝天氟材料有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method achieves the upper and lower balance of the sealing assembly by adding a pressure balance tank, but the single-end mechanical seal is easy to cause seal failure in a system with high solid content, and solid particles enter the circulating cooling liquid, causing the stirring bearing to enter solid particles and cause agitation accidents stop

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  • A Combined Sealing System of Reactor Stirring Shaft and Its Application

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with specific examples, but the present invention is not limited to these specific implementations. Those skilled in the art will realize that the present invention covers all alternatives, modifications and equivalents as may be included within the scope of the claims.

[0041] This embodiment provides a combined sealing system for the stirring shaft of the reactor, which is especially suitable for medium and high pressure suspension polymerization reactors. figure 1 Provided schematically the structural representation of the combined sealing system of the reactor stirring shaft provided by the present invention, as figure 1 As shown, the combined sealing system of the stirring shaft of the reactor includes:

[0042] Outer magnetic drive part 1, atmospheric side magnetic seal cavity 2, inner magnetic drive part 3, stirring shaft 4, first flange 5, second flange 6, first medium side mechanical seal cavi...

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Abstract

The invention provides a combined sealing system for a stirring shaft of a reaction kettle. The combined sealing system of the stirring shaft of the reaction kettle includes an external magnetic driving part, an atmospheric side magnetic force sealing cavity, an internal magnetic transmission part and a stirring shaft body, the external magnetic driving part and the internal magnetic transmissionpart successively sleeve the outer side of the stirring shaft body from outside to inside to form an atmospheric side magnetic force sealing structure, and the upper and lower sides of the atmosphericside magnetic force sealing structure are provided with bearings correspondingly; a second flange, a second medium side mechanical sealing cavity, a first flange and a first medium side mechanical sealing cavity successively sleeve the outer side of the stirring shaft body from top to bottom of the atmospheric side magnetic force sealing cavity to form a medium side second mechanical sealing structure and a medium side first mechanical sealing structure; and the medium side second mechanical sealing structure is located at the lower part of the atmospheric side magnetic force sealing cavity,and particles in the second medium side mechanical sealing cavity are prevented from entering the atmospheric side magnetic force sealing cavity. The combined sealing system has the advantages of highsecurity, good stability, easy maintenance, long service life and the like.

Description

technical field [0001] The invention relates to the technical field of sealing in a reaction system with a medium-high pressure reactor, in particular to a reactor stirring shaft suitable for a reaction system in which the medium in a medium-high pressure reactor has the characteristics of solid particles, flammable, explosive, and highly toxic. Combined sealing system and its application. Background technique [0002] The reactor is the key equipment of chemical production, and the sealing device of the stirring shaft of the reactor is the key component of the reactor, and it is the first line of defense for the safe production of the chemical industry. Suspension polymerization has the characteristics of high reaction pressure, high solid content of reaction medium, flammable and explosive material medium, and most of them are toxic. Therefore, it is very important to study the sealing device for stirring the polymerization reactor. At present, the existing sealing devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/34F16J15/43F16J15/40B01D29/50
CPCB01D29/50F16J15/3404F16J15/3464F16J15/3492F16J15/406F16J15/43
Inventor 胡凯瑞郑刚刘勇营陈先进
Owner 中化蓝天氟材料有限公司
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