A stirring shaft sealing device and reaction furnace
A technology of sealing device and stirring shaft, which is applied in chemical/physical/physical-chemical stationary reactors, etc., can solve the problems of sealing failure, low reliability, falling off of alloy pieces, etc.
Active Publication Date: 2016-08-24
HUNAN WANTONG TECH
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Problems solved by technology
However, this device requires that the rotating ring seat and the cemented carbide have very similar thermal expansion coefficients, otherwise the alloy sheet will fall off at high temperature, the seal will fail, and the reliability will be low
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[0025] The invention provides a stirring shaft sealing device and a reaction furnace to achieve the purpose of improving the sealing effect and reliability while making the structure simple and convenient for manufacture.
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] see figure 1 , figure 1 The structure schematic diagram of the stirring shaft sealing device provided by the embodiment of the present invention.
[0028] A stirring shaft sealing device provided by the present invention is used to...
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The invention discloses a stirring shaft sealing device, which comprises first and second flanges and a compensating device, wherein the first flange is sealed and fixedly connected with the stirring shaft; On the flange, the edge of the second flange extends toward the reaction furnace to form a boss; the compensation device includes an elastic expansion tube and first and second annular sealing plates arranged at both ends of the elastic expansion tube; the first annular sealing plate is embedded in the second method The end face of the flange side and the groove surrounded by the boss are rotatably connected to the second flange, and a sealing wear-resistant layer is arranged between the second flange and the first annular sealing plate, and the sealing wear-resistant layer is connected to the second flange. The flange and one of the first ring-shaped sealing plates are detachably connected; the second ring-shaped sealing plate is sealed and fixedly connected with the furnace cover of the reaction furnace. the reliability of the seal. The invention also discloses a reaction furnace.
Description
technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a stirring shaft sealing device and a reaction furnace. Background technique [0002] In many fields such as oil refining, chemical industry, metallurgy, and medicine, reactors with stirring devices are often used, and most of the gases produced by the reaction are flammable, explosive, and highly irritating, which requires the stirring shaft and The body of the reaction furnace is sealed reliably to prevent gas leakage. The current mechanical seals or packing seals cannot meet the requirements of use due to insurmountable shortcomings. For example, mechanical seals have extremely high requirements on the concentricity of the processing and installation of the stirring shaft and sealing materials, otherwise the slight swing of the stirring shaft will quickly wear out. The sealing accessories cause the seal to fail; the packing seal has poor sealing performance due to ...
Claims
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IPC IPC(8): B01J19/18
Inventor 张春伟瞿吉利宁子超李艳芬
Owner HUNAN WANTONG TECH