A welding fume purifier suction structure

Abstract

The utility model discloses a welding fume purifier suction structure, including mobile box, be provided with centrifugal fan in mobile box, and the outer wall of mobile box is sealed and is inserted with the gas pipe, and the top of mobile box is sealed and is inserted with the bellows, and the other end of bellows is equipped with the connecting pipe, and the connecting pipe and bellows are sleeved with the clamp between, and the other end of connecting pipe is clamped with the air inlet, and the air inlet is clamped with the first filter screen in, and the connecting pipe is clamped with a plurality of second filter screens, and the first filter screen is the iron chromium aluminium alloy screen, and the second filter screen is the high temperature resistant nylon screen, and the bottom outer wall of mobile box is fixed with a plurality of gyro wheels through bolt, and the bottom of air inlet is clamped with the collection box. The utility model discloses through the welding slag of big particle is blocked and is filtered by the first filter screen, then, welding fume passes through a plurality of second filter screens in turn to filter out the welding slag of small particle, and then avoid the welding slag to enter the air inlet pipe, to avoid the welding slag adsorption on the pipeline inner wall.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to an air intake structure for a welding fume purifier. Background Technology

[0002] In industrial welding operations, processes such as electric arc welding and gas welding generate a large amount of welding fumes, which contain metal oxides, dust particles and toxic gases. Therefore, welding fume purifiers have become essential equipment in welding workplaces. A fume purifier consists of five major modules: an air intake system, a conveying system, a purification system, a power system and a control and auxiliary system. The air intake structure, as the core component for capturing welding fumes, directly affects the purification efficiency.

[0003] Existing air intake systems typically consist of a centrifugal fan, intake pipe, and fume hood. Their impurity filtration is simple, and welding fumes mixed with high-temperature welding slag are easily drawn into the intake pipe, causing them to adhere to the inner wall of the pipe and affecting the service life of the metal hose.

[0004] Therefore, in order to better achieve the air intake filtration of welding fume purifiers, promote technological progress in the industry, and enhance the core technological competitiveness, this application proposes a new implementation scheme that differs from the air intake structure of welding fume purifiers in the prior art. Utility Model Content

[0005] The purpose of this utility model is to solve the problem of the lack of existing protective devices, and to propose an air intake structure for a welding fume purifier.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A welding fume purifier intake structure includes a movable housing with a centrifugal fan inside. An air supply pipe is sealed and inserted into the outer wall of the movable housing. A corrugated pipe is sealed and inserted into the top of the movable housing. A connecting pipe is provided at the other end of the corrugated pipe. A clamp is fitted between the connecting pipe and the corrugated pipe. An air inlet is clamped at the other end of the connecting pipe. A first filter screen is clamped inside the air inlet. Multiple second filters screens are clamped inside the connecting pipe. A collection box is clamped at the bottom of the air inlet.

[0008] Furthermore, the first filter screen is an iron-chromium-aluminum alloy mesh.

[0009] Furthermore, the second filter screen is a high-temperature resistant nylon mesh.

[0010] Furthermore, the bottom outer wall of the movable box is fixed with multiple rollers by bolts.

[0011] Furthermore, the collection box is located on one side of the first filter screen.

[0012] Furthermore, a protruding ring is fixedly connected to one end of the air intake.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Large particles of welding slag are blocked and filtered by the first filter screen. Then, the welding fumes pass through multiple second filters in sequence, thereby filtering out small particles of welding slag and preventing welding slag from entering the air intake pipe, so as to prevent welding slag from adhering to the inner wall of the pipe.

[0015] 2. The clamp between the connecting pipe and the corrugated pipe facilitates the disassembly and assembly of the connecting pipe, thereby making it easy and quick to replace and clean the second filter screen.

[0016] 3. By setting up a collection box, large particles of welding slag fall into the collection box and are collected. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the air intake structure of a welding fume purifier proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the air intake structure of a welding fume purifier according to the present invention.

[0019] Figure 3 This is a partial cross-sectional view of the air intake structure of a welding fume purifier proposed in this utility model.

[0020] Figure 4 This is a partially enlarged schematic diagram of the air intake structure of a welding fume purifier proposed in this utility model.

[0021] In the diagram: 1. Moving housing; 2. Roller; 3. Corrugated pipe; 4. Connecting pipe; 5. Clamp; 6. Air inlet; 7. Collection box; 9. Protruding ring; 10. First filter screen; 11. Second filter screen. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A welding fume purifier intake structure includes a movable housing 1, a centrifugal fan fixed inside the movable housing 1 (e.g., a 1.5kW centrifugal fan, model Y4-73No.5), an air supply pipe 101 sealed and inserted into the outer wall of the movable housing 1, a corrugated pipe 3 sealed and inserted into the top of the movable housing 1, one end of the corrugated pipe 3 inside the movable housing 1 being sealed and inserted into the air inlet of the centrifugal fan, and the air outlet of the centrifugal fan being sealed and inserted into the air supply pipe 101.

[0024] The other end of the corrugated pipe 3 is provided with a connecting pipe 4, and a clamp 5 is sleeved between the connecting pipe 4 and the corrugated pipe 3, which facilitates the disassembly and assembly of the connecting pipe 4, and thus facilitates the replacement and cleaning of the second filter screen 11.

[0025] The other end of the connecting pipe 4 is snapped with an air inlet 6. The air inlet 6 is funnel-shaped. The corrugated pipe 3, the connecting pipe 4 and the air inlet 6 are all made of metal, such as 304 stainless steel. A stepped ring is set inside the air inlet 6. A first filter screen 10 is snapped inside the air inlet 6. A convex ring 9 is threaded to one end of the air inlet 6. The convex ring 9 squeezes the first filter screen 10, thereby limiting the first filter screen 10. A conical surface is opened on the convex ring 9, so as to facilitate the introduction of welding fumes into the air inlet 6.

[0026] The first filter screen 10 is 2mm x 2mm, and large particles of welding slag are blocked and filtered by the first filter screen 10.

[0027] A retaining ring is provided inside the connecting pipe 4, and multiple second filter screens 11 are engaged with the retaining ring. Welding fumes pass through the multiple second filter screens 11 in sequence, thereby filtering out small particles of welding slag. The second filter screens 11 are 0.5mm x 0.5mm.

[0028] The first filter screen 10 is made of iron-chromium-aluminum alloy, which is suitable for use in high-temperature environments.

[0029] The second filter screen 11 is a high-temperature resistant nylon mesh.

[0030] Multiple rollers 2 are fixed to the bottom outer wall of the movable box 1 by bolts, which facilitates the movement of the movable box 1.

[0031] A collection box 7 is attached to the bottom of the air intake 6. The collection box 7 is located on one side of the first filter screen 10. Large particles of welding slag fall into the collection box 7 and are collected.

[0032] The working principle of this embodiment is as follows: In use, the welding fumes are drawn into the air inlet 6 by the moving housing 1. Then, large particles of welding slag are blocked and filtered by the first filter screen 10. Next, the large particles of welding slag fall into the collection box 7 and are collected. Then, the welding fumes enter the connecting pipe 4 and pass through multiple second filter screens 11 in sequence, thereby filtering out small particles of welding slag and completing the impurity filtration. Then, the welding fumes enter the moving housing 1 through the corrugated pipe 3 and are sent out by the air supply pipe 101 for subsequent purification treatment.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fume extractor structure, comprising a movable housing (1), a centrifugal fan disposed inside the movable housing (1), and an air supply pipe (101) sealed and inserted into the outer wall of the movable housing (1), characterized in that, The top of the mobile housing (1) is sealed with a corrugated pipe (3), and the other end of the corrugated pipe (3) is provided with a connecting pipe (4). A clamp (5) is sleeved between the connecting pipe (4) and the corrugated pipe (3). The other end of the connecting pipe (4) is clamped with an air inlet (6). A first filter screen (10) is clamped inside the air inlet (6). Multiple second filters screens (11) are clamped inside the connecting pipe (4). A collection box (7) is clamped at the bottom of the air inlet (6).

2. The suction structure of a welding fume purifier according to claim 1, characterized in that, The first filter screen (10) is an iron-chromium-aluminum alloy screen.

3. The suction structure of a welding fume purifier according to claim 1, characterized in that, The second filter screen (11) is a high-temperature resistant nylon mesh.

4. The suction structure of a welding fume purifier according to claim 1, characterized in that, The bottom outer wall of the movable box (1) is fixed with multiple rollers (2) by bolts.

5. The suction structure of a welding fume purifier according to claim 1, characterized in that, The collection box (7) is located on one side of the first filter (10).

6. The suction structure of a welding fume purifier according to claim 1, characterized in that, A protruding ring (9) is fixedly connected to one end of the air inlet (6).

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