Device for purifying and filtering welding fume
By designing a multi-layered filter plate and an airflow channel, the filtration device for welding fumes has solved the health threat posed by harmful fumes during welding and the problem of welding fume diffusion, thus achieving purification of the welding environment and improvement of safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-13
AI Technical Summary
During welding operations, the harmful fumes generated pose a threat to the health of on-site workers and affect the quality of the working environment. The non-standard use of existing welding fume purification devices has led to the spread of welding fumes.
Design a device for purifying and filtering welding fumes, including a filter body, which separates particulate matter in welding fumes through multi-layer filter plates and air guide channels, filters harmful fumes using fireproof plates and purification plates, and achieves purification through an exhaust motor, while a dust suction port, a dust suction pipe and a collection box collect particulate matter.
It effectively separates particulate matter and sparks from welding fumes, reduces the spread of welding fumes, improves the air quality of the welding work environment, protects the health of workers, and reduces the risk of fire.
Smart Images
Figure CN223988288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of environmental protection equipment for welding construction, and in particular to a device for purifying and filtering welding fumes. Background Technology
[0002] The welding process during the construction of the nuclear island presents challenges such as a large workload, complex and compact internal structures of the plant, and poor ventilation. Furthermore, the high-temperature combustion during welding operations generates large amounts of harmful fumes, including manganese dioxide, nitrogen oxides, fluorides, and ozone, posing a threat to the health of on-site workers and impacting the quality of the working environment.
[0003] Although welding fume purification devices have been adopted to purify the harmful fumes generated during welding operations, improper use may lead to some welding fumes spreading, directly affecting the air quality at the work site and the health of the workers. Utility Model Content
[0004] The purpose of this invention is to provide a device for purifying and filtering welding fumes, so as to alleviate the technical problem that a large amount of harmful fumes are generated during welding operations, which poses a threat to the health of on-site workers.
[0005] This utility model provides a device for purifying and filtering welding fumes, including a filter device body, and a dust suction port is provided at the upper end of the filter device body;
[0006] The filter device body is provided with a receiving cavity, and a vertically arranged first partition plate is provided in the receiving cavity, which divides the receiving cavity into a first side cavity and a second side cavity.
[0007] The dust suction port is connected to the first side cavity, and a second partition plate is provided in the second side cavity, which divides the second side cavity into an upper cavity and a lower cavity.
[0008] A first opening is provided on the first partition plate, and the first opening connects the first side cavity with the upper cavity.
[0009] A side partition is provided in the first side cavity, and the side partition has a guide slope, which is located below the dust suction port;
[0010] A lower extension plate is provided below the side partition, and a first filter plate is connected below the lower extension plate; a plurality of filter holes are provided on the first filter plate.
[0011] The side partition, the lower extension plate, and the first filter partition form an airflow channel; the airflow channel is used to guide the air in the first side cavity to the first opening.
[0012] In an optional embodiment, the second partition plate is provided with a first fireproof plate, a second fireproof plate, a first purification plate, and a second purification plate in descending order from high to low.
[0013] Furthermore, an air buffer plate is provided between the second purification plate and the second partition plate, forming an air buffer zone between the air buffer plate and the partition plate.
[0014] In an optional embodiment, the filter holes of the first fireproof board and the second fireproof board become progressively smaller, and the first fireproof board and the second fireproof board are made of metal.
[0015] In an optional embodiment, the first purification plate and the second purification plate have an activated carbon purification layer.
[0016] In an optional embodiment, the first partition plate is provided with a plurality of upper exhaust vents; and a plurality of exhaust motors are provided on the lower end face of the first partition plate, and each of the upper exhaust vents is provided with one exhaust motor.
[0017] In an optional embodiment, the filter device body is provided with a first side opening, which communicates with the first side cavity;
[0018] A collection box is fitted at the first side opening, and the collection box is used to collect particulate matter entering from the suction port.
[0019] In an optional embodiment, a long suction tube is provided on the suction port; one end of the long suction tube is connected to the main body of the filter device, and the other end is provided with a suction hood.
[0020] In an optional embodiment, a second side opening is provided on one side of the filter device body, the second side opening is connected to the upper cavity, and a side door is provided at the second side opening;
[0021] The filter device has a lower exhaust port on its main body, and the lower exhaust port is connected to the lower cavity. The lower exhaust port is used to discharge gas from the lower cavity.
[0022] In an optional embodiment, a handle is provided on the upper surface of the filter device body.
[0023] In an optional embodiment, wheels are provided at the lower end of the main body of the filter device.
[0024] The welding fumes drawn in by the suction port on the main body of the filter device for purifying and filtering welding fumes provided by this utility model enter the first side cavity. After the welding fumes flow downwards, they enter the air guide channel through the filter holes on the first filter partition. The welding fumes then flow upwards and enter the first side cavity through the first opening. In the first side cavity, larger particles in the welding fumes move downwards under the influence of gravity and cannot enter the air guide channel. The welding fumes then need to overcome gravity and flow upwards in the air guide channel, further separating the larger particles from the welding fumes. This also facilitates the collision and extinguishing of welding slag and sparks. It reduces the amount of welding fumes particles and sparks entering the upper cavity, avoids the fire risk in the upper cavity, and increases the safety of the entire device for purifying and filtering welding fumes. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 A schematic diagram of the structure of the device for purifying and filtering welding fumes provided in an embodiment of this utility model;
[0027] Figure 2 for Figure 1 The diagram shows the internal structure of a device for purifying and filtering welding fumes.
[0028] Figure 3 for Figure 1 The diagram shows the internal structure of the main body of the filter device for purifying and filtering welding fumes.
[0029] Figure 4 for Figure 1 The diagram shows the side door of the filter body of the device for purifying and filtering welding fumes in the open state.
[0030] Figure 5 for Figure 1 The diagram shows the positional relationship between the second partition plate and the air buffer plate of the filter body of the device for purifying and filtering welding fumes.
[0031] Icons: 100-Main body of filter device; 200-First partition plate; 201-First opening; 300-Side partition plate; 400-Lower extension plate; 500-First filter partition plate; 600-Collection box; 700-Second partition plate; 800-Upper cavity; 900-Lower cavity; 110-Exhaust motor; 120-Upper exhaust vent; 130-Dust suction port; 140-Handle; 150-First fireproof plate; 160-Second fireproof plate; 170-First purification plate; 180-Second purification plate; 190-Air buffer plate; 210-Lower exhaust vent; 220-Second side opening; 230-Side door; 240-Dust suction tube; 250-Dust suction hood. Detailed Implementation
[0032] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.
[0033] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0034] In the description of this application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0035] In the description of this application, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.
[0036] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings.
[0037] Example
[0038] Reference Figures 1-5 This utility model provides a device for purifying and filtering welding fumes, including a filter device body 100, and a dust suction port 130 is provided at the upper end of the filter device body 100.
[0039] The filter device body 100 is provided with a receiving cavity, and a vertically arranged first partition plate 200 is provided in the receiving cavity, which divides the receiving cavity into a first side receiving cavity and a second side receiving cavity.
[0040] The suction port 130 is connected to the first side cavity, and a second partition plate 700 is provided in the second side cavity, which divides the second side cavity into an upper cavity 800 and a lower cavity 900.
[0041] A first opening 201 is provided on the first partition plate 200, and the first opening 201 connects the first side cavity with the upper cavity 800.
[0042] A side partition 300 is provided in the first side cavity, the side partition 300 has a guide slope, and the guide slope is located below the dust suction port 130;
[0043] A lower extension plate 400 is provided below the side partition 300, and a first filter partition 500 is connected below the lower extension plate 400; a plurality of filter holes are provided on the first filter partition 500.
[0044] The side partition 300, the lower extension plate 400, and the first filter partition 500 form an airflow channel; the airflow channel is used to guide the air in the first side cavity to the first opening 201.
[0045] In some embodiments, the filter device body 100 is provided with a dust suction port 130. The welding fumes generated during welding enter the first side cavity through the dust suction port 130. After entering the first side cavity, the welding fumes need to flow downward first and then enter the air guide channel through the filter holes on the first filter partition 500 and flow upward; and enter the upper cavity 800 through the first opening 201.
[0046] Welding fumes contain large particles that move directly downwards under the influence of gravity, thus separating from the welding fumes. As the welding fumes move upwards, they collide with the falling particles, which helps to extinguish the sparks in the welding fumes. This effectively reduces the number of sparks entering the upper cavity 800, thereby reducing the risk of fire in the upper cavity 800.
[0047] The side partition 300 provided in the first side cavity has a guide slope. Even if the particles in the welding dust entering from the dust inlet 130 fall onto the guide slope, the guide slope can guide the particles to flow downwards, avoiding the accumulation of particles on the guide slope and clogging of the dust inlet 130.
[0048] The front and rear ends of the side partition 300, the lower extension plate 400 and the first filter partition 500 are all in contact with the inner wall of the filter device body 100. That is, the welding dust in the first side cavity can only enter the upper cavity 800 through the filter hole on the first filter partition 500 and then enter through the first opening 201.
[0049] Since the welding fumes in the first side cavity need to overcome gravity to move upward, the large particles in the welding fumes move downward under the action of gravity, thereby achieving the separation of large particles from the welding fumes.
[0050] Reference Figure 4 In an optional embodiment, the second partition plate 700 is provided with a first fireproof plate 150, a second fireproof plate 160, a first purification plate 170 and a second purification plate 180 in sequence from high to low.
[0051] Furthermore, an air buffer plate 190 is provided between the second purification plate 180 and the second partition plate 700, and an air buffer zone is formed between the air buffer plate 190 and the partition plate.
[0052] In an optional embodiment, the filter holes of the first fireproof plate 150 and the second fireproof plate 160 become progressively smaller, and the first fireproof plate 150 and the second fireproof plate 160 are made of metal.
[0053] In an optional embodiment, the first purification plate 170 and the second purification plate 180 have activated carbon purification layers.
[0054] A first fireproof plate 150, a second fireproof plate 160, a first purification plate 170, and a second purification plate 180 are provided in the upper cavity 800. Welding dust entering the upper cavity 800 passes through the first fireproof plate 150, the second fireproof plate 160, the first purification plate 170, and the second purification plate 180 in sequence before entering the lower cavity 900 and being discharged from the lower cavity 900.
[0055] This allows the welding dust generated during welding to be filtered through the main body 100 of the filter device, which removes harmful fumes from the air. This enables welding operations to be carried out even in poorly ventilated environments, and prevents the spread of welding fumes, thus avoiding any impact on the air quality at the work site and consequently protecting the health of the workers.
[0056] The first fireproof plate 150 and the second fireproof plate 160 have similar structures, both being aluminum alloy frames with metal mesh inside. The aperture of the metal mesh on the first fireproof plate 150 is larger than that on the second fireproof plate 160. Both the first fireproof plate 150 and the second fireproof plate 160 are made of metal. Sparks generated during welding enter the upper cavity 800 and are intercepted by the first fireproof plate 150 and the second fireproof plate 160, preventing them from entering the first purification plate 170. The first fireproof plate 150 is used to intercept inhaled particles and sparks, while the second fireproof plate 160 is used to intercept fine particles and sparks.
[0057] The first purification plate 170 is used to absorb fine particles and smoke, and the second purification plate 180 is used to absorb even finer particles and smoke; the first purification plate 170 and the second purification plate 180 have activated carbon purification layers, which include activated carbon composite meltblown cloth.
[0058] Reference Figure 3 In an optional embodiment, the first partition plate 200 is provided with a plurality of upper exhaust vents 120; and a plurality of exhaust motors 110 are provided on the lower end surface of the first partition plate 200, and each of the upper exhaust vents 120 is provided with one exhaust motor 110.
[0059] In some embodiments, a plurality of upper exhaust vents 120 are provided on the first partition plate 200, and an exhaust motor 110 is provided on the lower end surface of the first partition plate 200, with each upper exhaust vent 120 corresponding to an exhaust motor 110.
[0060] The exhaust motor 110 creates a negative pressure in the upper cavity 800, so that the suction port 130 can draw the welding fumes generated during the welding process into the first side cavity, and then the welding fumes enter the upper cavity 800.
[0061] Welding fumes pass sequentially through the first fireproof plate 150, the second fireproof plate 160, the first purification plate 170, and the second purification plate 180, thus filtering the air containing welding dust. This prevents welding fumes from spreading even in poorly ventilated areas, reduces the impact of welding on the air quality, and ensures the health of workers.
[0062] Multiple buffer holes are provided on the air buffer plate 190. Air passing through the second purification plate 180 enters the air buffer zone through the buffer holes of the air buffer plate 190. Since several upper exhaust vents 120 are provided on the first partition plate 200, in order to ensure that the air can enter the upper exhaust vents 120 evenly and improve the working efficiency of the exhaust motor 110, an air buffer zone is set on the first partition plate 200 and the air buffer plate 190. The air enters the air buffer zone and then enters the upper exhaust vents 120.
[0063] In an optional embodiment, the filter device body 100 is provided with a first side opening, which communicates with the first side cavity.
[0064] A collection box 600 is installed at the first side opening, and the collection box 600 is used to collect particulate matter entering from the dust suction port 130.
[0065] A first side opening is provided on the filter device body 100, and the first side cavity is connected to the first side opening; the collection box 600 can be installed at the first side opening, and the particles that enter the welding fume from the dust suction port 130 fall downward into the collection box 600, and the collection box 600 can collect the particles.
[0066] In an optional embodiment, a long suction tube 240 is provided on the suction port 130; one end of the long suction tube 240 is connected to the filter device body 100, and the other end is provided with a suction hood 250.
[0067] To more accurately absorb welding fumes, a long suction pipe 240 is installed on the suction port 130, and a suction hood 250 is installed on the long suction pipe 240. The suction hood 250 can be moved above the welding area to promptly remove harmful fumes generated during the welding process, preventing the spread of harmful fumes and further ensuring the air quality of the working environment.
[0068] In an optional embodiment, a second side opening 220 is provided on one side of the filter device body 100, the second side opening 220 is connected to the upper cavity 800, and a side door 230 is provided at the second side opening 220.
[0069] The filter device body 100 is provided with a lower exhaust port 210, and the lower exhaust port 210 is connected to the lower cavity 900. The lower exhaust port 210 is used to discharge gas from the lower cavity 900.
[0070] A lower exhaust port 210 is provided on the main body 100 of the filter device, and the lower exhaust port 210 is connected to the lower cavity 900. The exhaust motor 110 is located on the lower end face of the first partition plate 200. The exhaust motor 110 draws air out of the upper cavity 800 through the upper exhaust port 120, so that the upper cavity 800 generates negative pressure. In this way, the air containing toxic fumes passes through the first fireproof plate 150, the second fireproof plate 160, the first purification plate 170 and the second purification plate 180 in sequence and enters the lower cavity 900 and is discharged from the lower exhaust port 210, thereby achieving filtration and purification of the air containing toxic fumes.
[0071] In an optional embodiment, a handle 140 is provided on the upper surface of the filter device body 100.
[0072] In an optional embodiment, the lower end of the filter device body 100 is provided with wheels.
[0073] To facilitate the movement of the device for absorbing and filtering welding fumes, wheels are provided at the lower end of the main body 100 of the filter device; to facilitate the pushing of the device for absorbing and filtering welding fumes, a handle 140 is provided at the upper end of the main body 100 of the filter device.
[0074] The welding fumes drawn in by the suction port 130 on the main body 100 of the filter device of this utility model enter the first side cavity. After the welding fumes flow downwards, they enter the air guide channel through the filter holes on the first filter partition 500. The welding fumes then flow upwards and enter the first side cavity through the first opening 201. In the first side cavity, larger particles in the welding fumes move downwards under the influence of gravity and cannot enter the air guide channel. The welding fumes then need to overcome gravity and flow upwards in the air guide channel, further separating the larger particles from the welding fumes. This also facilitates the collision and extinguishing of welding slag and fire. It reduces the amount of welding fumes particles and sparks entering the upper cavity 800, avoids the fire risk of the upper cavity 800, and increases the safety of the entire device for purifying and filtering welding fumes.
[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A device for purifying welding fumes, characterized in that The filter device comprises a filter device body (100), a dust suction port (130) is arranged at the upper end of the filter device body (100); A containing cavity is arranged in the filter device body (100), a first partition plate (200) is arranged in the containing cavity in a vertical manner, and the first partition plate (200) divides the containing cavity into a first side containing cavity and a second side containing cavity; The dust suction port (130) is communicated with the first side containing cavity, a second partition plate (700) is arranged in the second side containing cavity, and the second partition plate (700) divides the second side containing cavity into an upper containing cavity (800) and a lower containing cavity (900); A first opening (201) is arranged on the first partition plate (200), and the first opening (201) is communicated between the first side containing cavity and the upper containing cavity (800); A side partition plate (300) is arranged in the first side containing cavity, and the side partition plate (300) has a guide inclined surface which is located below the dust suction port (130); A lower extension plate (400) is arranged below the side partition plate (300), and a first filter partition plate (500) is connected below the lower extension plate (400); a plurality of filter holes are arranged on the first filter partition plate (500); The side partition plate (300), the lower extension plate (400) and the first filter partition plate (500) form an air guide channel, and the air guide channel is used for guiding air in the first side containing cavity to the first opening (201).
2. The device for purifying welding fumes according to claim 1, characterized in that, A first fireproof plate (150), a second fireproof plate (160), a first purification plate (170) and a second purification plate (180) are sequentially arranged on the second partition plate (700) from high to low; An air buffer plate (190) is arranged between the second purification plate (180) and the second partition plate (700), and the air buffer plate (190) and the second partition plate (700) form an air buffer area.
3. The device for purifying welding fumes according to claim 2, characterized in that, The filter holes of the first fireproof plate (150) and the second fireproof plate (160) are sequentially reduced in size, and the first fireproof plate (150) and the second fireproof plate (160) are made of metal.
4. The device for purifying welding fumes according to claim 2, characterized in that, The first purification plate (170) and the second purification plate (180) have an activated carbon purification layer.
5. The device for purifying welding fumes according to claim 1, characterized in that, A plurality of upper air outlets (120) are arranged on the first partition plate (200), and a plurality of air exhaust motors (110) are arranged on the lower end surface of the first partition plate (200), and each upper air outlet (120) is correspondingly provided with one air exhaust motor (110).
6. The device for purifying welding fumes according to claim 1, characterized in that, The filter device body (100) is provided with a first side opening which is communicated with the first side containing cavity; A material collecting box (600) is assembled at the first side opening, and the material collecting box (600) is used for collecting particulate matters entering from the dust suction port (130).
7. The device for purifying welding fumes according to claim 6, characterized in that A dust suction long pipe (240) is arranged on the dust suction port (130), one end of the dust suction long pipe (240) is connected with the filter device body (100), and the other end is provided with a dust suction cover (250).
8. The device for purifying welding fumes according to claim 1, characterized in that, One side of the filter device body (100) is provided with a second side opening (220) in communication with the upper cavity (800), and a side door (230) is arranged at the second side opening (220). The filter device body (100) is provided with a lower air outlet (210) in communication with the lower cavity (900), and the lower air outlet (210) is used for discharging gas from the lower cavity (900).
9. A device for purifying welding fumes according to any of claims 1-8, characterized in that, A handle (140) is arranged on the upper end surface of the filter device body (100).
10. A device for purifying welding fumes according to any of claims 1-8, characterized in that, The lower end of the filter device body (100) is provided with wheels.