Hydrogen fluoride reactor seal

Abstract

This utility model discloses a sealing structure for a hydrogen fluoride reactor, belonging to the field of reactor technology. Specifically, it includes a hot air jacket and a furnace tail. A fish-scale sealing mechanism is provided at the connection between the hot air jacket and the furnace tail. It also includes a tensioning device for ensuring the fish-scale sealing mechanism is tightly fitted to the sealing surface. The tensioning device includes a steel wire rope and a counterweight mechanism. The steel wire rope is wound around the surface of the fish-scale sealing mechanism, and both ends of the steel wire rope are connected to the counterweight mechanism. The fish-scale sealing mechanism effectively fills any gaps that may appear at the connection, tightly fitting the gaps in the hot air jacket, preventing gas leakage, and improving the sealing performance and operational safety of the hot air jacket. The counterweight mechanism ensures the fish-scale seal is tightly fitted to the sealing surface, automatically adjusting the tension of the steel wire rope to avoid a decrease in the pre-tension of the steel wire rope affecting the sealing pressure, and also preventing gas leakage due to incomplete sealing.

Description

Technical Field

[0001] This utility model belongs to the field of reactor technology, specifically relating to the sealing structure of a hydrogen fluoride reactor. Background Technology

[0002] The rotary reactor is used for the production of hydrogen fluoride. The hot air jacket of the rotary reactor is a steel cylinder lined with refractory material. The hot air jacket is slowly rotated by an electric motor via gears. Material is added from the furnace head end, reacts in the hot air jacket, and is discharged from the furnace tail end.

[0003] Chinese utility model patent application number 202022592306.4 discloses a rotary kiln tail fish-scale sealing structure with good sealing effect. The structure includes a base, an extended ash hopper bolted to the top of the base, a sealing body bolted to the left side of the extended ash hopper, a fish-scale fixing plate bolted to the right side of the sealing shell, and a cement kiln body bolted to the left side of the sealing shell. This utility model facilitates the fastening of the fish-scale seals through the use of bolts and locking nuts. The cooperation of the fish-scale fixing block and the fish-scale pressure plate effectively enhances the sealing performance during installation. The fish-scale seals effectively seal the kiln tail, and the fixing plate and wire rope prevent leakage caused by incomplete sealing at the kiln tail. This further enhances the sealing effect of the fish-scale seals at the kiln tail, resulting in better environmental management at the kiln tail and solving the problem of poor sealing performance in traditional rotary kiln tail fish-scale sealing mechanisms.

[0004] The existing technology has some shortcomings: the wire rope is a ring structure fitted onto the fixed plate on the surface of the fish scale. When the temperature inside the hot air jacket rises, the expansion of the fish scale sealing structure is greater than the expansion of the wire rope, causing the wire rope to be forcibly stretched. After long-term use, the wire rope will gradually elongate, resulting in a decrease in preload and affecting the sealing pressure of the fish scale sealing structure. This leads to material leakage due to poor sealing. Therefore, it is necessary to provide a sealing structure for a hydrogen fluoride reactor to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a sealing structure for a hydrogen fluoride reactor. This structure automatically adjusts the wire rope tension, preventing a decrease in wire rope preload from affecting the sealing pressure and avoiding gas leakage due to incomplete sealing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for a hydrogen fluoride reactor, including a hot air jacket and a furnace tail, wherein a fish scale sealing mechanism is provided at the connection between the hot air jacket and the furnace tail.

[0007] It also includes a tensioning device for pressing the fish scale sealing mechanism tightly against the sealing surface. The tensioning device includes a wire rope and a counterweight mechanism. The wire rope is wound around the surface of the fish scale sealing mechanism, and the two ends of the wire rope are connected to the counterweight mechanism.

[0008] The counterweight mechanism includes a sealed box and a counterweight block. The counterweight block is movably connected inside the sealed box. The top of the counterweight block is connected to the end of a steel wire rope via a vertical elastic component. The side wall of the counterweight block is connected to the inner wall of the sealed box via a horizontal elastic component.

[0009] Preferably, the fish scale sealing mechanism includes a fish scale body, which is provided with multiple fish scale bodies. The multiple fish scale bodies are distributed in a ring on the hot air jacket. One end of the fish scale body is fixedly connected to the hot air jacket, and the other end of the fish scale body is attached to the tail of the furnace.

[0010] Preferably, the fish scale body is provided with multiple layers, and a flexible organic filler is provided between adjacent fish scale bodies.

[0011] Preferably, it also includes multiple limiting components, which are circumferentially distributed on the surface of the fish scale sealing mechanism to limit the position of the wire rope. Each limiting component includes a fixing plate and a hook. The fixing plate is fixedly connected to the fish scale body, and one end of the fixing plate is fixedly connected to the hook.

[0012] Preferably, the vertical elastic component includes a vertical damper, the fixed end of which is fixedly connected to the counterweight, and the movable end of which is hinged to the end of the wire rope.

[0013] Preferably, the lateral elastic component includes a slide rail, a slide plate, a connecting plate, and a lateral damper. The slide rail is vertically fixedly connected to the sealed box, and the slide plate is slidably connected to the slide rail. The connecting plate is fixedly connected to the counterweight block, and the connecting plate and the slide plate are fixedly connected by the lateral damper.

[0014] Preferably, the sealing box is provided with a rope hole for the end of the wire rope to pass through, and a wear-resistant bushing sleeved on the outside of the wire rope is fixedly connected in the rope hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, through the fish-scale sealing mechanism, uses flexible organic sealing material to replace graphite bricks instead of traditional graphite bricks. It can adapt to the temperature changes during the operation of the hot air jacket, effectively fill the gaps that may appear at the connection, and tightly fit the gaps of the hot air jacket, thereby preventing gas leakage and improving the sealing performance and operational safety of the hot air jacket.

[0017] 2. The present invention, through the tensioning device, can ensure that the fish scale body is tightly attached to the sealing surface, eliminate the initial assembly gap, and prevent the fish scale body from being locally overloaded or leaking pressure. It also avoids the problem of the fish scale body warping or detaching due to thermal stress.

[0018] 3. The present invention, through the set counterweight mechanism, can better ensure that the fish scale body is tightly attached to the sealing surface, and can also automatically adjust the tension of the wire rope to avoid the problem of reduced wire rope pretension affecting the sealing pressure, and also avoid the problem of gas leakage caused by poor sealing. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a side view sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the sealing box of this utility model;

[0023] In the diagram: 1. Hot air jacket; 2. Furnace tail; 3. Steel wire rope; 4. Sealing box; 5. Counterweight; 6. Fish scale body; 7. Fixing plate; 8. Hook; 9. Vertical damper; 10. Slide rail; 11. Slide plate; 12. Connecting plate; 13. Lateral damper; 14. Wear-resistant bushing. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figure 1-3This embodiment provides the following technical solution: a sealing structure for a hydrogen fluoride reactor, including a hot air jacket 1 and a furnace tail 2. The hot air jacket 1 is fixedly sleeved on the outer surface of the furnace body. A fish scale sealing mechanism is provided at the connection between the hot air jacket 1 and the furnace tail 2. In some embodiments, a fish scale sealing mechanism is also provided at the connection between the hot air jacket 1 and the furnace head. The fish scale sealing mechanism includes a fish scale body 6, which is provided with multiple fish scale bodies 6. The multiple fish scale bodies 6 are distributed in a ring on the hot air jacket 1. The top end of the fish scale body 6 is fixedly connected to the hot air jacket 1, and the bottom end of the fish scale body 6 overlaps the furnace tail 2.

[0027] In some embodiments, the fish scale body 6 is provided with multiple layers, which are distributed vertically. Flexible organic filler is provided between adjacent fish scale bodies 6. The multiple fish scale bodies 6 and the flexible organic filler together constitute the fish scale body. The fish scale body is made of high-temperature resistant steel. The organic sealing material composed of fish scale body 6 and flexible organic filler replaces the graphite brick instead of the traditional graphite brick. It can adapt to the temperature changes during the operation of the hot air jacket 1, effectively fill the gaps that may appear at the connection, and tightly fit the gaps of the hot air jacket 1, thereby preventing gas leakage and improving the sealing performance and operational safety of the hot air jacket 1.

[0028] Example 2

[0029] like Figure 1 and Figure 2 As shown, it also includes a tensioning device for ensuring that the fish scale sealing mechanism is tightly attached to the sealing surface. The tensioning device includes a steel wire rope 3 and a counterweight mechanism. The steel wire rope 3 is wound around the surface of the fish scale sealing mechanism. In some embodiments, the steel wire rope 3 is wound around the fish scale sealing mechanism at least once. By using the tensioning device, it is possible to ensure that the fish scale body 6 is tightly attached to the sealing surface, eliminate the initial assembly gap, and prevent the fish scale body 6 from experiencing local overload or leakage of contact pressure. It also avoids the problem of the fish scale body 6 warping or detaching due to thermal stress.

[0030] It also includes multiple limiting components, which are circumferentially distributed on the surface of the fish scale sealing mechanism to limit the position of the wire rope 3. The limiting components include a fixing plate 7 and a hook 8. The fixing plate 7 is fixedly connected to the fish scale body 6, and one end of the fixing plate 7 is fixedly connected to the hook 8. By setting the fixing plate 7 and the hook 8, the position of the wire rope 3 on the fish scale body 6 can be limited, preventing the wire rope 3 wrapped around the fish scale sealing mechanism from slipping down the inclined surface of the fish scale sealing mechanism.

[0031] Example 3

[0032] like Figure 2 and Figure 3As shown, both ends of the wire rope 3 are connected to a counterweight mechanism. The counterweight mechanism includes a sealing box 4 and a counterweight block 5. The counterweight block 5 is movably connected inside the sealing box 4. The top of the counterweight block 5 is connected to the end of the wire rope 3 through a vertical elastic component. The side wall of the counterweight block 5 is connected to the inner wall of the sealing box 4 through a horizontal elastic component. Through the counterweight mechanism, the fish scale body 6 can be better fitted tightly to the sealing surface. It can also automatically adjust the tension of the wire rope 3, avoiding the problem of reduced preload of the wire rope 3 affecting the sealing pressure, and also avoiding the problem of gas leakage caused by poor sealing.

[0033] In some embodiments, the sealing box 4 is fixedly connected to the ground or fixed on a stationary frame. Since both the vertical elastic component and the horizontal elastic component are located inside the sealing box 4, dust or external factors are prevented from affecting the service life of the horizontal elastic component and the vertical elastic component.

[0034] The vertical elastic component includes a vertical damper 9. The fixed end of the vertical damper 9 is fixedly connected to the counterweight 5, and the movable end of the vertical damper 9 is hinged to the end of the wire rope 3. The vertical damper 9 can buffer the inertial impact of the counterweight 5, reduce the instantaneous change of tension in the wire rope 3, prevent fatigue fracture caused by alternating stress, stabilize the contact pressure of the fish scale sealing mechanism, and reduce fretting wear caused by vibration.

[0035] In some embodiments, the vertical damper 9 can be connected to the crimped sleeve on the wire rope 3 via a ball joint.

[0036] The lateral elastic component includes a slide rail 10, a slide plate 11, a connecting plate 12, and a lateral damper 13. The slide rail 10 is vertically fixed to the sealed box 4, and the slide plate 11 is slidably connected to the slide rail 10. The connecting plate 12 is fixedly connected to the counterweight 5, and the connecting plate 12 and the slide plate 11 are fixedly connected by the lateral damper 13. With the slide rail 10 and the slide plate 11, the counterweight 5 can only slide in the vertical direction, avoiding the lateral swing of the counterweight 5 caused by external force, and also avoiding excessive friction of the steel wire rope 3 on the fish scale body 6 caused by the swing of the counterweight 5, which would affect the service life of the steel wire rope 3 and the fish scale body 6.

[0037] The sealing box 4 is provided with a rope hole for the end of the steel wire rope 3 to pass through. A wear-resistant bushing 14 is fixedly connected inside the rope hole and sleeved on the outside of the steel wire rope 3. The wear-resistant bushing 14 reduces the friction between the steel wire rope 3 and the sealing box 4.

[0038] In some embodiments, the wear-resistant bushing 14 may be a zirconia ceramic bushing, and the inner diameter of the wear-resistant bushing 14 is 1-2 mm larger than the diameter of the wire rope 3.

[0039] The working principle of this utility model is as follows: During use, the counterweight 5 tightens the steel wire rope 3 due to its own weight. The tension of the steel wire rope 3 is transmitted to the fish scale body 6, making it press tightly against the sealing surface and forming an initial contact pressure. When the hot air jacket 1 heats up, the sealing structure expands. The steel wire rope 3 automatically adjusts its tension through the counterweight 5 to compensate for thermal displacement and maintain stable pressure. Moreover, when the counterweight 5 automatically adjusts the tension of the steel wire rope 3, the vertical damper 9 and the horizontal damper 13 can absorb the energy of the vibration of the hot air jacket 1, preventing the fish scale body 6 from detaching from the sealing surface due to high-frequency impact, thereby improving the sealing effect of the fish scale body 6 on the sealing surface.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing structure for a hydrogen fluoride reactor, comprising a hot air jacket (1) and a furnace tail (2), wherein a fish scale sealing mechanism is provided at the connection between the hot air jacket (1) and the furnace tail (2); It also includes a tensioning device for making the fish scale sealing mechanism fit tightly against the sealing surface. The tensioning device includes a wire rope (3) and a counterweight mechanism. The wire rope (3) is wound around the surface of the fish scale sealing mechanism. Both ends of the wire rope (3) are connected to the counterweight mechanism. The counterweight mechanism includes a sealed box (4) and a counterweight block (5). The counterweight block (5) is movably connected inside the sealed box (4). The top of the counterweight block (5) is connected to the end of the wire rope (3) through a vertical elastic component. The side wall of the counterweight block (5) is connected to the inner wall of the sealed box (4) through a horizontal elastic component.

2. The sealing structure of the hydrogen fluoride reactor according to claim 1, characterized in that: The fish scale sealing mechanism includes a fish scale body (6), which is provided with multiple fish scale bodies (6). The multiple fish scale bodies (6) are distributed in a ring on the hot air jacket (1). One end of the fish scale body (6) is fixedly connected to the hot air jacket (1), and the other end of the fish scale body (6) is attached to the tail of the furnace (2).

3. The sealing structure of the hydrogen fluoride reactor according to claim 2, characterized in that: The fish scale body (6) is provided with multiple layers, and flexible organic fillers are provided between adjacent fish scale bodies (6).

4. The sealing structure of the hydrogen fluoride reactor according to claim 2, characterized in that: It also includes multiple limiting components, which are circumferentially distributed on the surface of the fish scale sealing mechanism to limit the position of the wire rope (3). The limiting components include a fixing plate (7) and a hook (8). The fixing plate (7) is fixedly connected to the fish scale body (6), and one end of the fixing plate (7) is fixedly connected to the hook (8).

5. The sealing structure for the hydrogen fluoride reactor according to claim 1, characterized in that: The vertical elastic component includes a vertical damper (9), the fixed end of which is fixedly connected to the counterweight (5), and the movable end of which is hinged to the end of the wire rope (3).

6. The sealing structure of the hydrogen fluoride reactor according to claim 1, characterized in that: The lateral elastic component includes a slide rail (10), a slide plate (11), a connecting plate (12), and a lateral damper (13). The slide rail (10) is vertically fixedly connected to the sealed box (4). The slide plate (11) is slidably connected to the slide rail (10). The connecting plate (12) is fixedly connected to the counterweight (5). The connecting plate (12) and the slide plate (11) are fixedly connected by the lateral damper (13).

7. The sealing structure for the hydrogen fluoride reactor according to claim 1, characterized in that: The sealed box (4) is provided with a rope hole for the end of the wire rope (3) to pass through, and a wear-resistant bushing (14) is fixedly connected inside the rope hole and sleeved on the outside of the wire rope (3).

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