Sealing device for reaction kettles

Abstract

The invention discloses a sealing device for reaction kettles, comprising a first flange, a second sealing barrel, a first sealing barrel and a second flange which are sequentially, hermetically and fixedly connected from top to bottom and sleeved outside a stirring shaft, wherein first, second and third static rings are respectively, hermetically and fixedly arranged at the lower end of the first flange, the upper end of the second flange and the lower end of the second sealing barrel; first, second and third moving rings are respectively, hermetically and fixedly sleeved outside the stirring shaft and respectively in sealing contact with the third, the second and the first static rings; a first sealing cavity is formed among the first and the second sealing barrels, the second flange, the stirring shaft, the first and the second moving rings, the second and the third static rings; a second sealing cavity is formed among the first flange, the second sealing barrel, the first static ring, the first and the third moving rings and the third static ring; and the pressure in the second sealing cavity is less than that in the first sealing cavity. The device disclosed by the invention has the advantages that the pressure difference of the connection end face of the first sealing cavity is effectively reduced; the situations that the first sealing cavity leaks and bursts are effectively prevented from happening; and the use safety of the reaction kettles is guaranteed.

Description

technical field [0001] The invention relates to a sealing device, in particular to a sealing device for a high-pressure and high-speed reaction kettle. Background technique [0002] At present, the sealing device for high-pressure and high-speed reactors is a sealed chamber. When the reactor is working, due to the high pressure generated in the sealed chamber, a high-strength pressure difference is formed on the connecting end surface of the sealed chamber, which makes the sealed chamber have the potential to leak or even burst. Dangerous, and the general reaction kettle is full of toxic substances, once the sealed cavity leaks, it will cause serious pollution to the outside world, seriously endangering the outside environment and the personal life of the staff. Contents of the invention [0003] In order to make up for the above deficiencies, the present invention provides a sealing device for a reaction kettle, which can effectively reduce the pressure difference on the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the sealing device for high-pressure and high-speed reactors is a sealed chamber. When the reactor is working, due to the high pressure generated in the sealed chamber, a high-strength pressure difference is formed on the connecting end surface of the sealed chamber, which makes the sealed chamber have the potential to leak or even burst. Dangerous, and the general reaction kettle is full of toxic substances. Once the sealed cavity leaks, it will cause serious pollution to the outside world, seriously endangering the outside environment and the personal life of the staff.

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