A backflow prevention ring inside a reactor

CN224807409UActive Publication Date: 2026-09-29SHAOXING KEQIAO HENGMING CHEMICAL FIBER CO LTD
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Patent Information

Application Number
CN202522313966.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-09-29
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

[0003]横向放置的反应釜在进行搅拌反应时,内部液体会在搅拌时向上溅射至反应釜的顶部,且液体下流过程中会朝向主轴和轴封处流动,内部压强会导致液体通过轴封向外溢出,溢出同时对轴封造成损坏,从而需要对这一问题进行改进,增加轴封的实用寿命

Benefits of technology

[0010]通过在轴封位于反应釜内部的一端外表面套接设置套筒,套筒能够有效的放置液体下流过程中,直接与油封接触,同时在套筒远离反应釜的一端设置斜面部,以及内圈设置的多个连接轴,多个连接轴内圈连接的挡板,挡板套于旋转轴表面,挡板不与旋转轴接触,从而能够更好的对外侧的液体飞溅进行阻挡,大大增加轴封的使用寿命。

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Abstract

An anti-backflow baffle ring for a reactor belongs to the technical field of reactor equipment. It includes a reactor with multiple exhaust pipes at the top and a discharge port on one side of the front. The key feature is that a motor frame is installed at one end of the reactor, and a motor is connected to one end of the motor frame. This invention utilizes a sleeve fitted onto the outer surface of the end of the shaft seal located inside the reactor. This sleeve effectively prevents direct contact between the liquid and the oil seal during the downward flow. Simultaneously, a beveled portion is provided at the end of the sleeve away from the reactor, along with multiple connecting shafts arranged in an inner ring. Baffles are connected to the inner rings of these connecting shafts, and these baffles are fitted onto the surface of the rotating shaft without contacting it. This effectively blocks external liquid splashing, significantly increasing the service life of the shaft seal.
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Description

Technical Field

[0001] This utility model belongs to the technical field of reaction vessel equipment, specifically relating to an anti-backflow baffle ring inside a reaction vessel. Background Technology

[0002] A reaction vessel, also known as a reaction tank or pressure vessel, is a closed container that can perform heating, evaporation, cooling, and mixing functions through structural design and parameter configuration, and complete multiphase reactions such as gas-liquid, liquid-liquid, and gas-liquid-solid reactions. It is mainly used in processes such as sulfidation, nitration, hydrogenation, hydrocarbonation, polymerization, and condensation (e.g., reactors, decomposition tanks, polymerization kettles, etc.).

[0003] When a horizontally placed reactor is undergoing a stirring reaction, the internal liquid splashes upwards to the top of the reactor during stirring. As the liquid flows downwards, it moves towards the main shaft and shaft seal. The internal pressure causes the liquid to overflow through the shaft seal, damaging it. Therefore, this problem needs to be addressed to increase the service life of the shaft seal. Utility Model Content

[0004] The present invention mainly addresses the technical problems existing in the prior art by providing an anti-backflow baffle ring for a reaction vessel.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: an anti-backflow baffle ring for a reaction vessel, comprising a reaction vessel, a plurality of exhaust pipes on the top of the reaction vessel, and a discharge port on one side of the front of the reaction vessel, characterized in that: a motor frame is provided at one end of the reaction vessel, a motor is connected to one end of the motor frame, the output end of the motor is facing one side of the reaction vessel, and a rotating shaft is installed at the output end through a coupling, one end of the rotating shaft penetrates the reaction vessel into the interior of the reaction vessel, a shaft seal is sleeved at the connection between the reaction vessel and the rotating shaft, a baffle ring is sleeved on the surface of the shaft seal located inside the reaction vessel, the baffle ring is fixedly installed on the inner wall of the reaction vessel, and a rotating shaft is connected to the end of the rotating shaft located inside the reaction vessel through a coupling, and a plurality of stirring plates are inserted into the surface of the rotating shaft.

[0006] Preferably, the retaining ring includes a sleeve, which is fixedly installed on the inner wall of the reactor, and the side of the sleeve facing the inside of the reactor is bent inward to form a beveled ring.

[0007] Preferably, the inner wall of the inclined ring is provided with a plurality of connecting shafts, and the inner rings of the plurality of connecting shafts are connected to baffles sleeved on the surface of the rotating shaft.

[0008] Preferably, positioning bolts are inserted into both sides of the connection between the stirring plate and the rotating shaft. Two adjacent stirring plates are respectively provided with first insertion holes and second insertion holes of different sizes. Stirring rollers are inserted into both the first insertion holes and the second insertion holes. The stirring rollers are fixed to the stirring plates by positioning bolts.

[0009] The beneficial effects of this utility model are:

[0010] By fitting a sleeve onto the outer surface of the end of the shaft seal located inside the reactor, the sleeve can effectively prevent direct contact between the liquid and the oil seal during the downward flow. At the same time, a beveled part is provided at the end of the sleeve away from the reactor, and multiple connecting shafts are set in the inner ring. The inner ring of the multiple connecting shafts is connected to a baffle. The baffle is fitted onto the surface of the rotating shaft, but the baffle does not contact the rotating shaft, thereby better blocking liquid splashing from the outside and greatly increasing the service life of the shaft seal.

[0011] By inserting multiple stirring plates onto the surface of the rotating shaft, and opening first and second insertion holes of different sizes between adjacent stirring plates, and inserting stirring rollers into the first and second insertion holes, a better stirring effect is achieved, while the stirring rollers are easy to insert into the stirring plates. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0014] In the diagram: 1. Reactor; 11. Exhaust pipe; 12. Discharge port; 21. Motor frame; 22. Motor; 23. Shaft seal; 41. Sleeve; 42. Inclined ring; 43. Connecting shaft; 44. Baffle; 5. Rotating shaft; 51. Stirring plate; 52. First insertion hole; 53. Second insertion hole; 54. Positioning bolt; 55. Stirring roller. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0016] Example: An anti-backflow baffle ring inside a reactor, such as... Figures 1-2As shown, the reactor includes a reactor 1. Multiple exhaust pipes 11 are provided on the top of the reactor 1. A discharge port 12 is provided on one side of the front of the reactor 1. A motor frame 21 is provided at one end of the reactor 1. A motor 22 is connected to one end of the motor frame 21. The output end of the motor 22 is set facing the reactor 1. A rotating shaft is installed at the output end through a coupling. One end of the rotating shaft passes through the reactor 1 and into the reactor 1. A shaft seal 23 is fitted at the connection between the reactor 1 and the rotating shaft. A retaining ring is fitted on the surface of the shaft seal 23 inside the reactor 1. The retaining ring is fixedly installed on the inner wall of the reactor 1. A rotating shaft 5 is connected to the end of the rotating shaft inside the reactor 1 through a coupling. Multiple stirring plates 51 are inserted into the surface of the rotating shaft 5.

[0017] The retaining ring includes a sleeve 41, which is fixedly installed on the inner wall of the reactor 1. The sleeve 41 is bent inward on the side facing the inside of the reactor 1 to form a beveled ring 42. Multiple connecting shafts 43 are provided on the inner wall of the beveled ring 42. The inner rings of the multiple connecting shafts 43 are connected to a baffle 44 that is sleeved on the surface of the rotating shaft.

[0018] By attaching a sleeve 41 to the outer surface of the end of the shaft seal 23 located inside the reactor 1, the sleeve 41 can effectively prevent the liquid from directly contacting the oil seal during the downward flow. At the same time, a beveled part is provided at the end of the sleeve 41 away from the reactor 1, and multiple connecting shafts 43 are arranged in the inner ring. The inner ring of the multiple connecting shafts 43 is connected to a baffle 44, which is fitted onto the surface of the rotating shaft 5. The baffle 44 does not contact the rotating shaft 5, thereby better blocking the liquid splashing on the outside and greatly increasing the service life of the shaft seal 23.

[0019] Positioning bolts 54 are inserted into both sides of the connection between the stirring plate 51 and the rotating shaft 5. Two adjacent stirring plates 51 are respectively provided with first insertion holes 52 and second insertion holes 53 of different sizes. Stirring rollers 55 are inserted into both the first insertion holes 52 and the second insertion holes 53. The stirring rollers 55 are fixed to the stirring plates by positioning bolts 54.

[0020] By inserting multiple stirring plates onto the surface of the rotating shaft 5, and opening first insertion holes 52 and second insertion holes 53 of different sizes between adjacent stirring plates 51, and inserting stirring rollers 55 into the first insertion holes 52 and second insertion holes 53, a better stirring effect is achieved, and the stirring rollers 55 are easy to insert into the stirring plates.

[0021] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A backflow prevention baffle ring for a reactor, comprising a reactor (1), wherein a plurality of exhaust pipes (11) are provided on the top of the reactor (1), a discharge port (12) is provided on one side of the front of the reactor (1), a motor frame (21) is provided at one end of the reactor (1), a motor (22) is connected to one end of the motor frame (21), the output end of the motor (22) is provided facing the reactor (1), and a rotating shaft is installed at the output end through a coupling, one end of the rotating shaft penetrates the reactor (1) to the interior of the reactor (1), a shaft seal (23) is sleeved at the connection between the reactor (1) and the rotating shaft, a baffle ring is sleeved on the surface of the shaft seal (23) located inside the reactor (1), the baffle ring is fixedly installed on the inner wall of the reactor (1), and a rotating shaft (5) is connected to one end of the rotating shaft located inside the reactor (1) through a coupling, wherein a plurality of stirring plates (51) are inserted into the surface of the rotating shaft (5).

2. The anti-backflow baffle ring in a reactor according to claim 1, characterized in that: The retaining ring includes a sleeve (41), which is fixedly installed on the inner wall of the reactor (1). The sleeve (41) is bent inward on the side facing the inside of the reactor (1) to form a beveled ring (42).

3. The anti-backflow baffle ring in a reactor according to claim 2, characterized in that: The inner wall of the inclined ring (42) is provided with a plurality of connecting shafts (43), and the inner ring of the plurality of connecting shafts (43) is connected to a baffle (44) sleeved on the surface of the rotating shaft.

4. The anti-backflow baffle ring in a reactor according to claim 1, characterized in that: Positioning bolts (54) are inserted into both sides of the connection between the stirring plate (51) and the rotating shaft (5). Two adjacent stirring plates (51) are respectively provided with a first insertion hole (52) and a second insertion hole (53) of different sizes. A stirring roller (55) is inserted into both the first insertion hole (52) and the second insertion hole (53). The stirring roller (55) is fixed to the stirring plate by the positioning bolts (54).