Welding fume purifier

Abstract

The utility model discloses a welding fume purifier, which relates to the technical field of industrial purifiers, and comprises a box body and a control device arranged on the box body, the top of the box body is provided with a first air inlet, the bottom of the box body is provided with an air outlet, and the box body is provided with a filter element close to the first air inlet. An exhaust fan is arranged at the position, close to the air outlet, of the box body, a partition plate is arranged at the position, between the filter element and the exhaust fan, of the box body, a dust collecting device is arranged on the partition plate, a dust removing device is further arranged at the end, close to the filter element, of the box body, and a silencer is arranged at the position, close to the air outlet, of the box body and comprises a shell; the frame plate is arranged on the shell, ventilation ducts are arranged between the two sides of the frame plate and the shell respectively, a first silencing layer is arranged on the frame plate, and a second silencing layer is arranged on the side wall, located on the ventilation ducts, of the shell. The silencing device is arranged on the air outlet in a covering mode, so that the contact area between welding fume and the silencing device is increased, and the silencing effect during air exhausting is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial purifiers, in particular to a welding smoke purifier. Background Art

[0002] Welding fume purifier is an industrial environmental protection equipment, usually used in welding places such as tin soldering and manual arc welding, to collect and purify the welding fume generated, to protect the environment and the health of workers.

[0003] Pulse valve refers to a diaphragm valve that is controlled by an electromagnetic or pneumatic pilot valve and can instantly open and close a high-pressure gas source to generate pulses. It relies on the delay effect of air flow through air resistance and air capacity to convert the input long signal into a pulse signal. The pulse valve is the main component of the dust collector and can spray more than 1 million times.

[0004] In order to reduce the noise during exhaust, the existing welding smoke purifier generally installs a silencer on the side wall of the purifier close to the air outlet. However, the purified welding smoke is directly discharged through the air outlet by the exhaust fan, and the silencer can only contact very little welding smoke. Therefore, this silencer method has very limited ability to reduce noise.

[0005] Therefore, a welding fume purifier is urgently needed to improve the silencing effect during exhaust. Utility Model Content

[0006] In view of the above technical problems, the utility model provides a welding smoke purifier, which is used to solve the problem that the existing welding smoke purifier has limited silencing effect when exhausting air.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions:

[0008] A welding smoke purifier comprises a box body and a control device arranged on the box body, a first air inlet is provided on the top of the box body, an air outlet is provided on the bottom of the box body, a filter element is provided on the box body near the first air inlet, an exhaust fan is provided on the box body near the air outlet, a partition is provided on the box body between the filter element and the exhaust fan, a dust collecting device is provided on the partition, a dust cleaning device is also provided on one end of the box body near the filter element, a silencer is provided on the air outlet cover of the box body, the silencer comprises a shell, a frame plate is horizontally provided in the shell body, ventilation ducts are respectively provided on both sides of the frame plate and the shell body, a first silencer layer is provided on the frame plate, and a second silencer layer is provided on the side wall of the shell body located on the ventilation duct.

[0009] Furthermore, an arc-shaped guide plate is provided at the exhaust end of the exhaust fan.

[0010] Furthermore, a mounting plate is vertically installed in the box body, an exhaust air duct is provided between the mounting plate and the side wall of the box body, and the exhaust air duct is parallel to the mounting plate.

[0011] Furthermore, a first mounting opening is provided at a position of the mounting plate corresponding to the filter element, and a second mounting opening is provided at a position of the mounting plate corresponding to the exhaust fan, and the first mounting opening is coplanar with the second mounting opening.

[0012] Furthermore, the exhaust fan is arranged transversely in the box.

[0013] Furthermore, the control device is arranged at one end of the box body close to the first air inlet.

[0014] Furthermore, a second air inlet is provided on the top of the shell.

[0015] In summary, the beneficial technical effects of the utility model are:

[0016] (1) By setting a silencer on the air outlet, the silencer area of ​​the welding smoke on the exhaust path is increased. When the air enters the silencer, it first passes through the first silencer layer on the frame to absorb the noise. When the welding smoke passes from the frame to the ventilation duct, the second silencer layer on the side wall of the shell is used to absorb the noise again, thereby greatly improving the silencer effect.

[0017] (2) By using an exhaust duct parallel to the mounting plate, the exhaust duct changes from the original curve to a straight line, shortening the distance for welding smoke to enter the exhaust fan, thereby reducing energy consumption.

[0018] (3) The control device is arranged above the box body, which facilitates the welder to operate the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 yes Figure 1 Schematic diagram from another angle;

[0021] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 4 yes Figure 3 Schematic diagram from another angle;

[0023] Figure 5 yes Figure 3 Schematic diagram from the third angle;

[0024] Figure 6 yes Figure 3 Schematic diagram of the fourth angle;

[0025] Figure 7 It is a schematic diagram of the internal structure and air circulation of the silencer.

[0026] Figure numerals: 1. box body; 2. first air inlet; 3. air outlet; 4. control device; 5. mounting plate; 6. first mounting port; 7. second mounting port; 8. partition; 9. filter element; 10. exhaust fan; 11. exhaust duct; 12. dust cleaning device; 13. dust collecting device; 14. silencer; 15. shell; 16. second air inlet; 17. frame; 18. first silencer layer; 19. second silencer layer; 20. ventilation duct; 21. exhaust end; 22. arc guide plate; 23. universal wheel. DETAILED DESCRIPTION

[0027] The present invention will be described clearly and completely below in conjunction with the embodiments.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] See attached Figure 1-7 , shown is a welding fume purifier, comprising a box body 1, a first air inlet 2 is provided on the top of the box body 1, and when in use, the first air inlet 2 is connected to a dust collection duct, and an air outlet 3 is provided at the bottom of the box body 1, and welding fume generated by welding enters through the first air inlet 2, is filtered, and then discharged from the air outlet 3;

[0031] A mounting plate 5 is vertically fixed in the box body 1, and a first mounting port 6 is provided at one end of the mounting plate 5 close to the first air inlet 2, and a filter element 9 is installed on the first mounting port 6, and the other end of the filter element 9 is connected to the box body 1, and a second mounting port 7 is provided at one end of the mounting plate 5 close to the air outlet 3, and the first mounting port 6 and the second mounting port 7 are in a coplanar relationship, and an exhaust fan 10 is installed on the mounting plate 5 through the second mounting port 7, and a partition plate 8 is provided between the filter element 9 and the exhaust fan 10 on the mounting plate 5, and the filter element 9 and the exhaust fan 10 are separated by the partition plate 8 and the mounting plate 5, and the partition plate 8 is provided below the filter element 9 and a dust collecting device 13 is provided, and the dust collecting device is specifically a drawer that can be movably pulled out, and when processing welding smoke, the welding smoke is sucked from the first air inlet 2 through the exhaust fan 10, and the welding smoke is filtered by the filter element 9 and then discharged from the air outlet 3, and the smoke filtered by the filter element 9 is collected in the dust collecting device 13;

[0032] Further, the box body 1 is provided with a silencer 14 at the position of the air outlet 3 by screws, and the silencer 14 specifically includes a shell 15, a second air inlet 16 is opened on the top of the shell 15, a frame 17 is horizontally provided in the shell 15, a first silencer layer 18 is paved on the frame 17, and ventilation ducts 20 are left between the two sides of the frame 17 and the side walls of the shell 15, and a second silencer layer 19 is provided on the side walls of each ventilation duct 20. When processing welding smoke, after the filtered welding smoke is discharged from the exhaust fan 10, it enters the shell 15 through the second air inlet 16. , and then the welding smoke first contacts with the first silencing layer 18 on the frame plate 17 for the first silencing, and then the welding smoke is diverted to the ventilation ducts 20 on both sides based on the first silencing layer 18, and then the welding smoke is silenced again through the second silencing layer 19 arranged vertically after diversion, and the welding smoke is discharged from the air outlet 3 after two silencings, so the contact area of ​​the welding smoke during silencing is increased by arranging the silencing device 14 at the air outlet 3, and the noise can be absorbed to the maximum extent through the first silencing layer 18 and the second silencing layer 19, thereby improving the silencing effect of the entire purifier;

[0033] Furthermore, an exhaust duct 11 parallel to the mounting plate 5 is formed on one side of the box body 1 through the mounting plate 5, so that the entire exhaust duct 11 is arranged in a straight line, which can reduce the distance of the welding smoke flowing in the box body 1, thereby reducing the energy consumption of the entire purifier;

[0034] At the same time, the box body 1 is provided with a dust cleaning device 12 located at the exhaust air duct 11 and at the position of the first installation port 6. The dust cleaning device 12 specifically includes an air bag and a pulse valve. The pulse valve sprays the high-pressure air in the air bag to the filter element 9 at a fixed time, so that the filter element 9 produces a shaking effect, thereby shaking the smoke and dust accumulated on the filter element 9 into the integrated device;

[0035] Furthermore, in order to allow the welding smoke from the exhaust fan 10 to vertically enter the second air inlet 16 and to increase the exhaust speed of the welding smoke, the box body 1 is provided with an arc guide plate 22 at the exhaust end 21 of the exhaust fan 10. When the welding smoke comes out of the exhaust fan 10, it swirls counterclockwise under the action of the arc guide plate 22 and enters from the second air inlet 16.

[0036] Furthermore, the utility model also includes a control device 4 arranged on the top of the box body 1. During the welding process, the welder controls the start and stop of the entire purifier through the control device 4. At the same time, by arranging the control device 4 on the top of the box body 1, the welder does not need to squat when operating the control device 4, thereby facilitating the operation.

[0037] It should be noted that the first sound-absorbing layer 18 and the second sound-absorbing layer 19 can be sound-insulating cotton sold on the market.

[0038] During use, the first air inlet 2 is connected to the dust suction duct, and the exhaust fan 10 is started by the control device 4. The welding smoke generated by welding enters the box body 1 through the first air inlet 2 under the suction of the exhaust fan 10, and then the welding smoke first contacts with the filter element 9, and the smoke in the welding smoke is filtered under the filtering action of the filter element 9, and then the filtered welding smoke enters the exhaust fan 10 along the exhaust duct 11, and then the welding smoke comes out from the exhaust end 21 of the exhaust fan 10 and reaches the arc guide plate 22. The welding smoke rotates counterclockwise under the action of the arc guide plate 22 and reaches the top of the silencer 14, and then enters the shell 15 from the second air inlet 16 under the action of pressure, and then the welding smoke successively contacts with the first silencer layer 18 and the second silencer layer 19 and absorbs the noise, and finally the silenced welding smoke is discharged from the air outlet 3. In this process, the pulse valve on the cleaning device 12 regularly sprays air to the filter element 9 to shake off the smoke into the integrated device for collection.

[0039] The above description is only a preferred specific implementation method of the present invention, and does not limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding fume purifier, comprising a housing (1) and a control device (4) arranged on the housing (1), a first air inlet (2) being provided at the top of the housing (1), an air outlet (3) being provided at the bottom of the housing (1), a filter element (9) being provided at a position close to the first air inlet (2) of the housing (1), an exhaust fan (10) being provided at a position close to the air outlet (3) of the housing (1), a partition (8) being provided between the filter element (9) and the exhaust fan (10) of the housing (1), a dust collecting device (13) being provided on the partition (8), and a dust cleaning device (12) being provided at one end of the housing (1) close to the filter element (9), characterized in that: The box body (1) is provided with a silencer (14) located at the air outlet (3), the silencer (14) comprising a shell (15), a frame plate (17) being horizontally arranged inside the shell (15), ventilation ducts (20) being respectively arranged between the two sides of the frame plate (17) and the shell (15), a first silencer layer (18) being arranged on the frame plate (17), and a second silencer layer (19) being arranged on the side wall of the shell (15) located at the ventilation duct (20).

2. A welding fume purifier according to claim 1, characterized in that: An air discharge end (21) of the exhaust fan (10) is provided with an arc-shaped guide plate (22).

3. A welding fume purifier according to claim 1, characterized in that: A mounting plate (5) is vertically mounted in the box body (1), an exhaust air duct (11) is provided between the mounting plate (5) and the side wall of the box body (1), and the exhaust air duct (11) is parallel to the mounting plate (5).

4. A welding fume purifier according to claim 3, characterized in that: The mounting plate (5) is provided with a first mounting opening (6) at a position corresponding to the filter element (9), and the mounting plate (5) is provided with a second mounting opening (7) at a position corresponding to the exhaust fan (10), and the first mounting opening (6) and the second mounting opening (7) are coplanar.

5. The welding fume purifier according to claim 1, characterized in that: The exhaust fan (10) is arranged transversely in the box body (1).

6. A welding fume purifier according to claim 1, characterized in that: The control device (4) is arranged at one end of the box body (1) close to the first air inlet (2).

7. A welding fume purifier according to claim 1, characterized in that: A second air inlet (16) is provided on the top of the shell (15).

Images