A guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower.

Abstract

This utility model discloses a guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower. It includes a tower body and a carrier frame installed inside the tower body for installing the demister. The carrier frame includes a plate connected to the inner wall of the tower body and multiple flanged mounting cylinders on the plate body. The demister is inserted into the mounting cylinder. A bearing member extending below the plate body is provided at the lower part of the flange. During hoisting operations, when the hoisting guide structure moves the demister upwards, the guide cylinder guides the demister to maintain a vertical rise, effectively preventing equipment damage due to collision with the inner wall of the mounting cylinder caused by swaying. When the demister needs to be installed and the hoisting guide structure pulls it downwards, during the descent, the demister gradually adjusts its position and posture through continuous contact with the inner wall of the guide cylinder, ultimately achieving precise alignment with the target mounting cylinder, thus smoothly inserting it. This improves the alignment and operational efficiency of the installation while reducing the risk of equipment damage.

Description

Technical Field

[0001] This utility model relates to the field of absorption tower technology, and in particular to a guiding structure for the installation of a demister inside a high-temperature sulfuric acid absorption tower. Background Technology

[0002] In the series of sulfuric acid production processes, a considerable amount of heat is generated. One of the core pieces of equipment in the low-temperature waste heat recovery system (HRS system) of the dry absorption section is the sulfuric acid vapor generator. The high-temperature sulfuric acid absorption tower is a packed-type absorption tower. With the continuous expansion of sulfuric acid plants, its tower diameter and the number of internal components (such as acid mist demisters) have also increased. Because the upper section of the high-temperature sulfuric acid absorption tower is equipped with an acid mist demister to separate sulfuric acid mist and droplets from the high-temperature flue gas, the demister is extremely inconvenient to install, repair, or replace due to its considerable length (3-4 meters). Furthermore, protecting the demister from damage during hoisting is extremely difficult and time-consuming using conventional hoisting methods, significantly increasing the workload and time required for installation, repair, or replacement. Utility Model Content

[0003] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a guiding structure for the installation of a demister inside a high-temperature sulfuric acid absorption tower, which solves the aforementioned problems.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower. The high-temperature sulfuric acid absorption tower includes a tower body and a carrier frame disposed inside the tower body for installing the demister. The carrier frame includes a plate connected to the inner wall of the tower body and a plurality of mounting cylinders with flanges disposed on the plate body. The demister is inserted into the mounting cylinder. A bearing member extending to the lower part of the flange is provided below the plate body. A radially movable guide cylinder is provided inside the bearing member. A hoisting guide rail structure for pulling the demister up / down is provided in the upper part of the tower body cavity. When the demister is hoisted up / down, the demister is accurately inserted / pulled out of the mounting cylinder under the traction of the guide cylinder.

[0005] Furthermore, the bottom wall of the inner cavity of the bearing component is provided with an upwardly extending elastic element, and the guide cylinder is installed on the elastic element.

[0006] Furthermore, the upper end of the guide tube is flared.

[0007] Furthermore, the guide cylinder sidewall has multiple axially opened sections, making the guide cylinder into multiple independent units.

[0008] Furthermore, the support component surrounds the outer periphery of the mounting cylinder, and the inner cavity of the support component is concave.

[0009] Furthermore, the inner cavity of the carrier is divided into an upper part and a lower part. The upper part is the diameter diffuser section, and the lower part is adapted to the mounting cylinder.

[0010] Furthermore, the upper part has a bayonet on the inner wall of the side near the mounting cylinder, and the outer wall of the guide cylinder has a protrusion that can be inserted into the bayonet.

[0011] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, during the hoisting operation, when the hoisting guide rail structure drives the demister to move upward, the guide cylinder can guide the demister to maintain vertical rise, effectively avoiding equipment damage caused by collision with the inner wall of the installation cylinder due to sway. When the demister needs to be installed in place and the hoisting guide rail structure pulls it downward, during the descent, the demister gradually adjusts its position and posture through continuous contact with the inner wall of the guide cylinder, and finally achieves precise alignment with the target installation cylinder, thereby smoothly inserting it into it, thereby improving the alignment and operational efficiency of the installation, while reducing the risk of equipment damage.

[0012] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a plan view of Embodiment 1 of this utility model.

[0014] Figure 2 This is a partial view of the carrier frame of Embodiment 1 of this utility model.

[0015] Figure 3 This is a cross-sectional view of the mounting cylinder of Embodiment 1 of this utility model.

[0016] Figure 4 This is Embodiment 1 of the present utility model. Figure 3 Enlarged view of point A.

[0017] Explanation of reference numerals in the attached diagram: Flange 1; Tower body 10; Demister 20; Frame 30, plate 31, mounting cylinder 32, bearing component 33, upper part 331, bayonet 3311, lower part 332, guide cylinder 34, cut 341, protrusion 342, elastic component 35; Lifting guide rail structure 40, guide rail 41, hanger 42. Detailed Implementation

[0018] Please refer to Figure 1-4As shown, this illustrates the specific structure of a preferred first embodiment of the present invention, which is a guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower. The high-temperature sulfuric acid absorption tower includes a tower body 10 and a carrier 30 disposed within the tower body 10 for installing a demister 20. The carrier 30 includes a plate 31 connected to the inner wall of the tower body 10, and a plurality of mounting cylinders 32 with flanges 1 disposed on the plate 31. The demister 20 is inserted into the mounting cylinder 32. A bearing member 33 extending below the plate 31 is provided at the lower part of the flange 1, and a radially movable guide cylinder 34 is provided within the bearing member 33. A hoisting guide rail structure 40 is provided at the upper part of the inner cavity of the tower body 10 for pulling the demister 20 up / down. When the demister 20 is hoisted up / down, the demister 20 is precisely inserted / pulled out of the mounting cylinder 32 under the traction of the guide cylinder 34. During the hoisting operation, when the hoisting guide rail structure 40 moves the demister 20 upward, the guide cylinder 34 can guide the demister 20 to maintain vertical ascent, effectively avoiding equipment damage caused by collision with the inner wall of the installation cylinder 32 due to swaying. When the demister 20 needs to be installed in place and the hoisting guide rail structure 40 pulls it downward, during the descent, the demister 20 gradually adjusts its position and posture through continuous contact with the inner wall of the guide cylinder 34, and finally achieves precise alignment with the target installation cylinder 32, thus smoothly inserting it into it, thereby improving the alignment and operational efficiency of the installation, while reducing the risk of equipment damage.

[0019] For example, the inner wall of the bearing member 33 is provided with an upwardly extending elastic member 35, and the guide cylinder 34 is mounted on the elastic member 35. The elastic member 35 is a spring, which, through its elastic deformation capability, can push the guide cylinder 34 to return to its original position when the lip at the top of the demister 20 separates from the flange 1 at the upper end of the mounting cylinder 32. This provides continuous and flexible centering guidance for the demister 20 during the descent of the hoisting equipment, effectively avoiding jamming or collision caused by positional deviation, and ensuring that the demister 20 is inserted smoothly and accurately into the mounting cylinder 32.

[0020] For example, the upper end of the guide cylinder 34 is flared. The flared opening can significantly increase the receiving and guiding range of the top of the guide cylinder. When the demister 20 moves downward under the action of hoisting, even if there is a slight initial alignment deviation, its bottom or sidewall can preferentially contact the inclined surface of the flared opening. Through the continuous guiding action of the inclined surface, the position of the demister 20 is automatically and smoothly corrected, and finally accurately aligned with the mounting cylinder 32 below and smoothly inserted.

[0021] For example, the guide cylinder 34 has multiple axially formed openings 341 on its sidewall, making the guide cylinder 34 into multiple independent units. When the demister 20 comes into contact with one or more independent units and applies radial force during its descent, the unit under force can undergo independent, local elastic displacement or deformation, while the other units not directly subjected to force can basically maintain their original state without unnecessary linkage downward pressure or deformation, thereby reducing the descent resistance and ensuring a smoother guiding process. At the same time, it greatly improves the guide system's tolerance and correction capability for installation misalignment, ensuring that the demister 20 can be accurately guided into the installation cylinder 32 without jamming.

[0022] For example, the carrier 33 surrounds the outer periphery of the mounting cylinder 32, and the inner cavity of the carrier 33 is concave. The surrounding layout and the concave inner cavity together form a stable receiving space, providing a uniform and reliable mounting base for the internal elastic element 35 and the guide cylinder 34, ensuring that their guiding function is stable.

[0023] For example, the inner cavity of the carrier 33 is divided into an upper part 331 and a lower part 332. The upper part 331 is a diffuser section, and the lower part 332 is adapted to the mounting cylinder 32. When the demister 20 is installed in place and its top lip overlaps and seals with the flange 1 of the mounting cylinder 32, the guide cylinder 34 will move downward under external pressure or the rebound action of the built-in elastic element 35. At this time, because its flared shape matches the diffuser section of the upper part 331 of the inner cavity, the guide cylinder 34 can smoothly retract into the inner cavity of the carrier 33.

[0024] For example, the inner wall of the upper part 331 near the mounting cylinder 32 is provided with a slot 3311, and the outer wall of the guide cylinder 34 is provided with a protrusion 342 that can be inserted into the slot 3311. When the demister 20 applies an eccentric force to the guide cylinder 34 during its downward movement, the guide cylinder 34 will tilt slightly in the diffuser section of the upper part 331. Once tilting occurs, the protrusion 342 on the outer wall of the guide cylinder 34 will immediately insert into the slot 3311 on the inner wall, forming effective support, so that the tilted guide cylinder 34 can align its flared end with the downward demister 20, continue to perform the correction and guidance functions, and finally guide the demister 20 to be accurately aligned and inserted into the mounting cylinder 32.

[0025] It should be noted that under normal conditions, the protrusion 342 will not be inserted into the slot 3311.

[0026] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A guide structure for installation of a mist eliminator within a high-temperature absorption tower of sulfuric acid, wherein, The high-temperature sulfuric acid absorption tower includes a tower body (10) and a carrier (30) provided inside the tower body (10) for installing a demister (20). The carrier (30) includes a plate (31) connected to the inner wall of the tower body (10) and a plurality of mounting cylinders (32) with flanges (1) provided on the plate (31). The demister (20) is inserted into the mounting cylinder (32). The lower part of the flange (1) is provided with a support member (33) extending to the lower part of the plate (31). The support member (33) is provided with a radially movable guide cylinder (34). The upper part of the inner cavity of the tower body (10) is provided with a hoisting guide rail structure (40) for pulling the demister (20) up / down. When the demister (20) is hoisted up / down, the demister (20) is precisely inserted / pulled out of the mounting cylinder (32) under the traction of the guide cylinder (34).

2. The guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower according to claim 1, characterized in that: The inner wall of the bearing member (33) is provided with an upwardly extending elastic member (35), and the guide cylinder (34) is connected to the elastic member (35).

3. A guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower according to claim 1 or 2, characterized in that: The inlet end of the guide tube (34) is horn-shaped.

4. The guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower according to claim 1, characterized in that: The guide cylinder (34) has multiple axially opened sections (341) on its side wall, making the guide cylinder (34) into multiple independent units.

5. The guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower according to claim 1, characterized in that: The support member (33) surrounds the outer periphery of the mounting cylinder (32), and the inner cavity of the support member (33) is concave.

6. The guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower according to claim 5, characterized in that: The inner cavity of the carrier (33) is divided into an upper part (331) and a lower part (332). The upper part (331) is a diameter diffusion section, and the lower part (332) is adapted to the mounting cylinder (32).

7. A guiding structure for installing a demister inside a high-temperature sulfuric acid absorption tower according to claim 6, characterized in that: The upper part (331) has a slot (3311) on the inner wall of the side of the mounting cylinder (32), and the outer wall of the guide cylinder (34) has a protrusion (342) that can be inserted into the slot (3311).

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