Smoke removal device for tank girth welding

Abstract

The utility model belongs to the technical field of smoke removal devices, and particularly relates to a smoke removal device for tank girth welding, which comprises a base, a fan is fixedly mounted at the lower end of the base, a mounting seat is in contact with the outer side of the base, a filter screen is fixedly connected to one side, close to the base, of the mounting seat, and the filter screen is slidably connected with the base. A fixing pipe is fixedly connected to the interior of the base, a square block is slidably connected to the interior of the fixing pipe, a connecting pipe is fixedly connected to the upper end of the square block, and a tobacco pipe is fixedly connected to the upper end of the connecting pipe. Through the arrangement of the limiting plate, the limiting block, the spring and other parts, the limiting plate can slide down from the limiting block by moving the limiting plate in the direction away from the mounting seat, so that the limiting of the filter screen can be relieved, and the filter screen can be detached and cleaned; the problem that when a smoke removal device for tank girth welding is used, a filter element is inconvenient to disassemble and replace is solved.

Description

Technical Field

[0001] This utility model relates to the field of smoke removal device technology, specifically a smoke removal device with circumferential welded tank body. Background Technology

[0002] A fume extraction device for circumferential welding of tank bodies is a device used to effectively remove fumes and harmful gases during the welding process. Circumferential welding is a common operation in the welding industry, especially when welding tanks or pressure vessels. The welding of the circumferential seam often generates a large amount of fumes, spatter, and toxic gases. If these fumes are not controlled, they can harm the health of welders and affect environmental quality. A fume extraction device typically consists of a fume collection hood, a fan, and a filtration system. Its working principle is to draw in the welding fumes through the hood and then transport them to the filtration system by a powerful fan. In the filtration system, harmful gases and particulate matter in the fumes are effectively removed, thereby purifying the air and preventing the spread of pollutants. After filtration, the clean gas is either discharged into the external environment or recycled to reduce waste.

[0003] However, there are some inconveniences in using smoke removal devices with circumferential welded tank bodies. Firstly, due to design limitations, disassembling and replacing the filter element is difficult, increasing maintenance complexity and impacting the equipment's operational efficiency. The filter element needs regular cleaning or replacement to maintain its filtration effectiveness, but the existing structure makes this process cumbersome, potentially delaying maintenance and affecting smoke removal efficiency. Secondly, the adjustable function of the smoke collection hood also presents inconveniences in actual operation. The lack of a flexible adjustment mechanism makes it difficult for users to quickly adjust the hood height according to changes in the working environment, potentially leading to suboptimal smoke collection and even affecting the health and safety of operators. Utility Model Content

[0004] The purpose of this utility model is to provide a smoke removal device with circumferential welded tank body, which solves the problems of inconvenience in disassembling and replacing the filter element and inconvenience in adjusting the smoke collection hood during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a smoke removal device with circumferential welded tank body, comprising a base, a fan fixedly installed at the lower end of the base, a mounting seat contacting the outer side of the base, a filter screen fixedly connected to the side of the mounting seat near the base, the filter screen being slidably connected to the base, a fixing tube fixedly connected inside the base, a square block slidably connected inside the fixing tube, a connecting pipe fixedly connected to the upper end of the square block, a smoke pipe fixedly connected to the upper end of the connecting pipe, a positioning block rotatably connected inside the fixing tube, the positioning block being rotatably connected to the connecting pipe, a limit sleeve fixedly connected to the upper end of the positioning block, and a disassembly mechanism provided on the mounting seat.

[0006] Preferably, a positioning seat is fixedly connected inside the mounting base, and the positioning seat is slidably connected to the filter screen. The positioning seat can limit the position of the filter screen through its design.

[0007] Preferably, a protrusion is fixedly connected to the outer side of the positioning block, and the protrusion is rotatably connected to the fixing tube. The design of the protrusion can keep the positioning block stable when it rotates.

[0008] Preferably, the limiting sleeve and the connecting pipe are connected by threads, and the limiting sleeve is in contact with the fixed pipe. Through the design of the limiting sleeve, the position of the connecting pipe can be adjusted.

[0009] Preferably, the disassembly mechanism includes a limiting plate, with both ends of the mounting base contacting the limiting plate, a limiting block fixedly connected to the outer side of the base, a sliding rod fixedly connected to the side of the limiting plate near the mounting base, the sliding rod being slidably connected to the mounting base, a limiting ring fixedly connected inside the mounting base, the limiting ring contacting the limiting plate, the limiting ring being slidably connected to the sliding rod, and a spring provided on the outer side of the sliding rod. Through the design of the disassembly mechanism, the filter screen can be easily disassembled.

[0010] Preferably, the limiting plate is in contact with the base, and the limiting plate is slidably connected to the limiting block. Through the design of the limiting plate, the mounting base can be limited.

[0011] Preferably, one end of the spring contacts the slide rod, and the other end of the spring contacts the limiting ring. Through the design of the spring, the limiting plate can be driven to limit the filter screen.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up components such as a limiting plate, a limiting block, and a spring, allows the limiting plate to slide off the limiting block by moving it away from the mounting base, thereby releasing the limiting of the filter screen and enabling the filter screen to be disassembled and cleaned. This solves the problem that it is inconvenient to disassemble and replace the filter element when using a smoke removal device with circumferential welded tank body.

[0014] 2. This utility model, by setting up components such as positioning blocks, protrusions, and limiting sleeves, allows the limiting sleeve to rotate, causing the limiting sleeve and the connecting pipe to move within the limiting sleeve. This allows for adjustment of the position of the connecting pipe and the pipe, solving the problem of inconvenient adjustment of the smoke collection hood during use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0016] Figure 2For the present utility model Figure 1 A three-dimensional view of the local structure;

[0017] Figure 3 For the present utility model Figure 1 A partial structural front sectional view;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of part A in the diagram;

[0019] Figure 5 For the present utility model Figure 2 Enlarged view of section B in the diagram.

[0020] In the diagram: 1. Base; 11. Fan; 2. Mounting seat; 21. Filter screen; 22. Positioning seat; 3. Fixing pipe; 31. Square block; 32. Connecting pipe; 33. Pipe; 34. Positioning block; 35. Protrusion; 36. Limiting sleeve; 4. Disassembly mechanism; 41. Limiting plate; 42. Limiting block; 43. Slide rod; 44. Limiting ring; 45. Spring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 A smoke removal device with circumferential welded tank body includes a base 1, a fan 11 fixedly installed at the lower end of the base 1, a mounting seat 2 in contact with the outer side of the base 1, a filter screen 21 fixedly connected to the side of the mounting seat 2 near the base 1, the filter screen 21 being slidably connected to the base 1, and a positioning seat 22 fixedly connected inside the mounting seat 2, the positioning seat 22 being slidably connected to the filter screen 21. The positioning seat 22 is designed to limit the position of the filter screen 21.

[0023] Please see Figure 2-5The base 1 has a fixed tube 3 inside, a square block 31 inside the fixed tube 3, a connecting tube 32 inside the square block 31, a pipe 33 inside the connecting tube 32, a positioning block 34 inside the fixed tube 3, the positioning block 34 is rotatably connected to the connecting tube 32, a protrusion 35 is fixedly connected to the outside of the positioning block 34, the protrusion 35 is rotatably connected to the fixed tube 3, the protrusion 35 is designed to keep the positioning block 34 stable when rotating, a limiting sleeve 36 is fixedly connected to the upper end of the positioning block 34, the limiting sleeve 36 is threaded to the connecting tube 32, the limiting sleeve 36 is in contact with the fixed tube 3, the limiting sleeve 36 is designed to adjust the position of the connecting tube 32, and a disassembly mechanism 4 is provided on the mounting base 2.

[0024] Please see Figure 2-5 The disassembly mechanism 4 includes a limiting plate 41. The two ends of the mounting base 2 are in contact with the limiting plate 41. A limiting block 42 is fixedly connected to the outer side of the base 1. The limiting plate 41 is in contact with the base 1 and is slidably connected to the limiting block 42. The limiting plate 41 can limit the mounting base 2. A sliding rod 43 is fixedly connected to the side of the limiting plate 41 near the mounting base 2. The sliding rod 43 is slidably connected to the mounting base 2. A limiting ring 44 is fixedly connected inside the mounting base 2. The limiting ring 44 is in contact with the limiting plate 41 and is slidably connected to the sliding rod 43. A spring 45 is provided on the outer side of the sliding rod 43. One end of the spring 45 is in contact with the sliding rod 43, and the other end of the spring 45 is in contact with the limiting ring 44. The spring 45 can drive the limiting plate 41 to limit the filter screen 21. The design of the disassembly mechanism 4 makes it easy to disassemble the filter screen 21.

[0025] The specific implementation process of this utility model is as follows: In use, by rotating the limiting sleeve 36, the limiting sleeve 36 and the connecting pipe 32 will undergo threaded movement, causing the connecting pipe 32 to move within the limiting sleeve 36, which will cause the connecting pipe 32 to drive the pipe 33 to move, thus adjusting the position of the pipe 33. By starting the fan 11, the fan 11 will draw air into the fixed pipe 3, which will allow the fixed pipe 3 to collect the smoke through the pipe 33 on the connecting pipe 32, and then send it into the base 1. After being filtered by the multi-layer filter screen 21, it will be drawn away and discharged by the fan 11.

[0026] By moving the limiting plate 41 away from the mounting base 2, the limiting plate 41 causes the sliding rod 43 to slide within the limiting ring 44, which in turn compresses the spring 45 and causes the limiting plate 41 to slide off the limiting block 42. This releases the limitation on the mounting base 2, allowing the mounting base 2 to slide the filter screen 21 out of the base 1, thus enabling the filter screen 21 to be disassembled and cleaned.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fume extraction device for cylindrical shell girth welding, comprising a base (1), characterized in that: The lower end of the base (1) is fixedly installed with a fan (11), the outer side of the base (1) is contacted with a mounting seat (2), one side of the mounting seat (2) close to the base (1) is fixedly connected with a filter screen (21), the filter screen (21) is slidably connected with the base (1), the inside of the base (1) is fixedly connected with a fixed pipe (3), the inside of the fixed pipe (3) is slidably connected with a square block (31), the upper end of the square block (31) is fixedly connected with a connecting pipe (32), the upper end of the connecting pipe (32) is fixedly connected with a pipe (33), the inside of the fixed pipe (3) is rotatably connected with a positioning block (34), the positioning block (34) is rotatably connected with the connecting pipe (32), the upper end of the positioning block (34) is fixedly connected with a limiting sleeve (36), the mounting seat (2) is provided with a dismounting mechanism (4).

2. A fume extraction device for girth welding of a tank body as defined in claim 1, characterized in that: The inside of the mounting seat (2) is fixedly connected with a positioning seat (22), the positioning seat (22) is slidably connected with the filter screen (21).

3. A fume extraction device for girth welding of a tank body as defined in claim 1, characterized in that: The outside of the positioning block (34) is fixedly connected with a convex block (35), the convex block (35) is rotatably connected with the fixed pipe (3).

4. A fume extraction device for girth welding a tank body as defined in claim 1, wherein: The limiting sleeve (36) is connected with the connecting pipe (32) through screw connection, the limiting sleeve (36) is contacted with the fixed pipe (3).

5. A fume extraction device for girth welding a tank body as defined in claim 1, wherein: The dismounting mechanism (4) comprises a limiting plate (41), both ends of the mounting seat (2) are contacted with the limiting plate (41), the outside of the base (1) is fixedly connected with a limiting block (42), one side of the limiting plate (41) close to the mounting seat (2) is fixedly connected with a sliding rod (43), the sliding rod (43) is slidably connected with the mounting seat (2), the inside of the mounting seat (2) is fixedly connected with a limiting ring (44), the limiting ring (44) is contacted with the limiting plate (41), the limiting ring (44) is slidably connected with the sliding rod (43), the outside of the sliding rod (43) is provided with a spring (45).

6. A fume extraction device for girth welding a tank body as defined in claim 5, wherein: The limiting plate (41) is contacted with the base (1), the limiting plate (41) is slidably connected with the limiting block (42).

7. A fume extraction device for girth welding a tank body as defined in claim 5, wherein: One end of the spring (45) is contacted with the sliding rod (43), the other end of the spring (45) is contacted with the limiting ring (44).

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