A welding fume dust collector with noise reduction

Abstract

The utility model discloses a kind of welding fume dust collectors of noise reduction, it is related to welding auxiliary equipment technical field, the welding fume dust collector includes dust collector box and the control box being arranged in the dust collector box one side, further include spark capture subassembly, dust removal subassembly, noise reduction subassembly and fan module.The utility model is through the three-stage spark interception structure of coarse mouth filter steel wire net, staggered V-shaped plate and fine mouth filter steel wire net, can efficiently block and cool high-temperature spark, cooperate infrared temperature sensor and the linkage mechanism of control box, can quickly respond when few spark breaks through interception, further block risk by speed reduction and airflow barrier, multiple protection effectively avoid spark ignition filter core, reduce security risk;The equipment is through the soundproof frame of double-layer sound insulation structure, centrifugal glass sound-absorbing cotton, rubber shock pad damping, etc., from noise barrier, absorption and damping, etc. Multidimensional reduction centrifugal fan operating noise, greatly reduce the noise volume of equipment.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, specifically a noise-reducing welding fume dust collector. Background Technology

[0002] Most existing welding fume dust collectors only use simple filters or lack dedicated spark control devices. The high-temperature sparks generated during welding can easily penetrate the primary filter and directly contact the filter element. The filter element is mostly made of organic or composite materials, which can be easily ignited by high-temperature sparks, leading to safety accidents. Moreover, the aerodynamic noise, mechanical noise, and structural resonance noise of the centrifugal fan in existing welding fume dust collectors are too high, and long-term exposure can cause hearing damage to operators. Utility Model Content

[0003] This invention provides a noise-reducing welding fume dust collector, which has the advantages of spark protection and low noise, thus solving the problems of insufficient high-temperature spark protection and high noise in existing dust collectors.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing welding fume dust collector, comprising a dust collector housing and a control box disposed on one side of the dust collector housing, and further comprising a spark capture assembly, a dust removal assembly, a noise reduction assembly, and a fan assembly, wherein:

[0005] A power junction box is located below the control box, and lifting hooks are fixed to the four corners of the top of the dust collector housing by bolts.

[0006] The spark capture assembly includes an air inlet box, an air inlet, a V-shaped baffle, a coarse-mouthed filter wire mesh, a fine-mouthed filter wire mesh, and an infrared temperature sensor. The air inlet is funnel-shaped with a slightly smaller opening facing outwards. The V-shaped baffle is divided into two layers and welded inside the air inlet box, and is staggered in the vertical direction. The coarse-mouthed filter wire mesh is fixed to the bottom of the V-shaped baffle with bolts.

[0007] The noise reduction components include a hanger, a sound insulation frame, centrifugal glass wool, rubber vibration damping pads, and damping springs. The sound insulation frame has a double-layer structure, with an inner layer of damping sound insulation board and an outer layer of cold-rolled steel plate.

[0008] As a preferred technical solution of this utility model, the dust collector housing is provided with a dust removal chamber inside, a clean air chamber is provided on one side of the dust removal chamber, and ash collection carts are symmetrically provided below the dust removal chamber. The air inlet box is symmetrically fixed to both sides of the dust collector housing by screws and communicates with the dust removal chamber.

[0009] As a preferred embodiment of this utility model, the fine-mesh filter wire mesh is fixed to the connection between the dust removal chamber and the air inlet box by bolts, and the infrared temperature sensor is fixed to the inside of the dust removal chamber and located above the fine-mesh filter wire mesh by screws.

[0010] As a preferred embodiment of this utility model, the sound insulation frame is fixed to the hanger by bolts, the hanger is symmetrically fixed to the top of the dust collector housing by screws, the centrifugal glass wool is filled inside the sound insulation frame, and the shock-absorbing spring is welded to the bottom of the sound insulation frame.

[0011] As a preferred technical solution of this utility model, the dust removal component includes a filter element, which is provided with a plurality of filter elements in a matrix embedded inside the dust removal chamber. The filter element has a cylindrical structure and its opening is connected to the clean air chamber. A back-blowing air bag is symmetrically fixed to one side of the clean air chamber by screws.

[0012] As a preferred technical solution of this utility model, electromagnetic valves are symmetrically arranged on both sides of the backflush air bag, and an air blowing pipe is installed on one side of the electromagnetic valve. The air blowing pipe faces the opening of the filter element. The fan assembly includes a centrifugal fan, which is installed inside the sound insulation frame.

[0013] As a preferred technical solution of this utility model, the rubber vibration damping pad is pasted on the bottom of the centrifugal fan, and an air outlet pipe is provided on one side of the centrifugal fan. The air outlet pipe is a flat-topped pyramidal shape with a slightly larger opening facing outward. Several heat dissipation holes are provided above the air outlet pipe. An air inlet pipe is provided at the bottom of the centrifugal fan. The air inlet pipe is a flexible corrugated pipe and is connected to the clean air chamber.

[0014] Compared with existing technologies, this utility model provides a noise-reducing welding fume dust collector with the following beneficial effects: This utility model utilizes a three-stage spark interception structure consisting of a coarse-mouthed filter wire mesh, an interlaced V-shaped plate, and a fine-mouthed filter wire mesh. This structure effectively blocks and cools high-temperature sparks. Combined with the linkage mechanism between the infrared temperature sensor and the control box, it can respond quickly even when a very small number of sparks break through the interception. Further risk is blocked through speed reduction and airflow barriers. Multiple protections effectively prevent sparks from igniting the filter element, reducing safety hazards. Furthermore, the device uses a double-layered sound-insulating frame, centrifugal glass sound-absorbing cotton, and rubber vibration damping pads to reduce centrifugal fan noise from multiple dimensions, including noise blocking, absorption, and vibration reduction, significantly reducing the overall noise level of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0016] Figure 2 This is a diagram of the internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the spark capture component structure of this utility model;

[0018] Figure 4 This is a structural diagram of the dust removal component of this utility model;

[0019] Figure 5 This is a schematic diagram of the noise reduction component structure of this utility model;

[0020] Figure 6 This is a structural diagram of the fan assembly of this utility model.

[0021] In the diagram: 1. Dust collector housing; 2. Control box; 3. Spark capture assembly; 4. Dust collection assembly; 5. Noise reduction assembly; 6. Fan assembly; 11. Power junction box; 12. Lifting hook; 13. Dust collection chamber; 14. Clean air chamber; 15. Ash collection cart; 16. Heat dissipation hole; 31. Air inlet box; 32. Air inlet; 33. V-shaped baffle; 34. Coarse-mouthed steel wire mesh filter; 35. Fine-mouthed steel wire mesh filter; 36. Infrared temperature sensor; 41. Filter element; 42. Backflush air manifold; 43. Solenoid valve; 44. Air blowing pipe; 51. Hanger; 52. Sound insulation frame; 53. Centrifugal glass wool; 54. Rubber vibration damping pad; 55. Shock-absorbing spring; 61. Centrifugal fan; 62. Air outlet pipe; 63. Air inlet pipe; 521. Damping sound insulation board; 522. Cold-rolled steel plate. 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. 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. Example 1

[0023] Please see Figures 1-6 This utility model discloses a noise-reducing welding fume dust collector, including a dust collector housing 1 and a control box 2 located on one side of the dust collector housing 1, and also includes a spark capture assembly 3, a dust collection assembly 4, a noise reduction assembly 5, and a fan assembly 6, wherein:

[0024] A power junction box 11 is located below the control box 2, and lifting hooks 12 are fixed to the four corners of the top of the dust collector box 1 by bolts;

[0025] Please refer to the appendix. Figure 3The spark capture assembly 3 includes an air inlet box 31, an air inlet 32, a V-shaped baffle 33, a coarse-mouthed filter wire mesh 34, a fine-mouthed filter wire mesh 35, and an infrared temperature sensor 36. The air inlet 32 ​​is funnel-shaped with a slightly smaller opening facing outwards. The V-shaped baffle 33 is divided into two layers and welded inside the air inlet box 31, and is staggered in the vertical direction. The coarse-mouthed filter wire mesh 34 is fixed to the bottom of the V-shaped baffle 33 by bolts. Specifically, the staggered design of the two layers of V-shaped plates impacts and intercepts high-temperature sparks, blocking the movement path of high-temperature sparks. At the same time, it can make the airflow form a local vortex on both sides of the baffle, prolonging the residence time of the spark in the air inlet box 31, so that the high-temperature spark collides with the baffle multiple times, thereby reducing the temperature and slowing down and cooling the spark in the cavity, avoiding direct impact on the filter element.

[0026] Please refer to the appendix. Figure 5 The noise reduction component 5 includes a hanger 51, a sound insulation frame 52, centrifugal glass wool 53, rubber vibration damping pads 54, and a damping spring 55. The sound insulation frame 52 has a double-layer structure, with an inner layer of damping sound insulation board 521 and an outer layer of cold-rolled steel plate 522.

[0027] The dust collector housing 1 has a dust removal chamber 13 inside, a clean air chamber 14 on one side of the dust removal chamber 13, and a dust collection cart 15 symmetrically arranged below the dust removal chamber 13. The air inlet box 31 is symmetrically fixed to both sides of the dust collector housing 1 by screws and is connected to the dust removal chamber 13.

[0028] The fine-mesh filter wire mesh 35 is fixed to the connection between the dust removal chamber 13 and the air inlet box 31 by bolts. The infrared temperature sensor 36 is fixed to the inside of the dust removal chamber 13 and above the fine-mesh filter wire mesh 35 by screws. Specifically, the infrared temperature sensor 36 can instantly detect abnormal temperature and feed it back to the control box 2. The control box 2 immediately reduces the speed of the centrifugal fan 61 and forms an airflow barrier by briefly blowing air through the back-blowing air bag 42 to avoid the safety risk caused by high-temperature sparks adhering to the filter element 41.

[0029] The sound insulation frame 52 is fixed to the hanger 51 by bolts, and the hanger 51 is symmetrically fixed to the top of the dust collector box 1 by screws. Centrifugal glass wool 53 is filled inside the sound insulation frame 52, and the damping spring 55 is welded to the bottom of the sound insulation frame 52. Specifically, the damping spring 55 can reduce the noise generated by the resonance between the sound insulation frame 52 and the dust collector box 1.

[0030] In this embodiment, large spark particles are intercepted by the coarse-mouthed steel wire mesh 34 and further refined by the fine-mouthed steel wire mesh 35. The sound insulation frame 52 wrapped around the centrifugal fan 61, through the double-layer sound insulation structure of cold-rolled steel plate 522 and damping sound insulation plate 521, greatly blocks the outward transmission of noise. At the same time, the centrifugal glass wool 53 in the interlayer absorbs aerodynamic noise, greatly improving the noise reduction effect. The rubber vibration damping pad 54 between the sound insulation frame 52 and the fan reduces the transmission of fan vibration to the equipment box, resulting in good noise reduction effect and strong practicality. Example 2

[0031] Based on the above embodiment 1, please refer to the appendix. Figure 2 , Figure 4 as well as Figure 6 The dust removal component 4 includes a filter element 41. The filter element 41 is provided with several elements and is embedded in the dust removal chamber 13 in a matrix. The filter element 41 has a cylindrical structure and its opening is connected to the clean air chamber 14. A back-blowing air bag 42 is symmetrically fixed on one side of the clean air chamber 14 by screws.

[0032] The backflush air manifold 42 is symmetrically equipped with electromagnetic valves 43 on both sides. An air blowing pipe 44 is installed on one side of the electromagnetic valve 43, and the air blowing pipe 44 faces the opening of the filter element 41. The fan assembly 6 includes a centrifugal fan 61, which is installed inside the sound insulation frame 52.

[0033] Rubber vibration damping pads 54 are attached to the bottom of centrifugal fan 61. An air outlet pipe 62 is provided on one side of centrifugal fan 61. The air outlet pipe 62 is a flat-topped pyramidal shape with a slightly larger opening facing outward. Several heat dissipation holes 16 are provided above the air outlet pipe 62. An air inlet pipe 63 is provided at the bottom of centrifugal fan 61. The air inlet pipe 63 is a flexible corrugated pipe and connects to the clean air chamber 14. Specifically, the gradually expanding structure of the air outlet pipe 62 and the air inlet 32 ​​reduces the turbulence disturbance of the airflow in the pipe, thereby reducing the additional noise of the airflow turbulence.

[0034] In this embodiment, the centrifugal fan 61 draws air from the clean air chamber 14 and the dust removal chamber 13, creating a negative pressure at the air inlet 32, which in turn draws in the surrounding welding fumes. The welding fumes are filtered and purified by the filter element 41 to remove dust. After a period of use, too much soot accumulates on the filter element 41. The control box 2 presets the intermittent start time of the solenoid valve 43. When the solenoid valve 43 is activated, the high-pressure gas accumulated inside the backflush air bag 42 is released instantaneously, thereby forming an impact airflow that strikes the surface of the filter element 41. The vibration causes the soot to fall into the ash collection cart 15.

[0035] The working principle and usage process of this utility model: When using this equipment, firstly, the equipment is moved to the work site by using a crane to hook the lifting hook 12. Then, the equipment is connected to the power supply through the power junction box 11. The equipment is started through the control box 2, and the centrifugal fan 61 is started. The air inside the clean air chamber 14 and the dust removal chamber 13 is continuously drawn through the air inlet pipe 63 at the bottom. As the air inside the dust removal chamber 13 gradually decreases, the pressure decreases accordingly. A negative pressure is generated at the air inlet 32 ​​that connects the dust removal chamber 13 to the external air inlet box 31, thereby absorbing the surrounding welding fumes.

[0036] After the welding fumes enter the dust removal chamber 13, they are filtered and purified by the filter element 41 to remove the fumes. The purified gas passes through the clean air chamber 14 and enters the centrifugal fan 61, and finally overflows from the heat dissipation hole 16, thus achieving the effect of purifying the welding fumes. After a period of use, too much ash accumulates on the filter element 41. By presetting the intermittent start time of the solenoid valve 43 through the control box 2, when the solenoid valve 43 is started, the high-pressure gas accumulated inside the back-blowing air bag 42 is released instantaneously, thereby forming an impact airflow that hits the surface of the filter element 41. Through the vibration, the ash falls into the ash collection cart 15 for further processing.

[0037] When high-temperature sparks are generated during electric welding, they are drawn into the air inlet box 31. Large sparks are intercepted by the coarse-mouthed steel wire mesh 34. Subsequently, two staggered V-shaped plates collide with and intercept the high-temperature sparks, blocking their movement path. At the same time, the airflow can form local vortices on both sides of the baffle, prolonging the residence time of the sparks in the air inlet box 31. This allows the high-temperature sparks to collide with the baffle multiple times, thereby reducing their temperature and slowing them down and cooling them in the cavity, preventing them from directly impacting the filter element. Finally, the fine-mouthed steel wire mesh 35 further refines the filtration. When a very small number of high-temperature sparks enter the dust removal cavity 13, the infrared temperature sensor 36 located above can instantly detect the abnormal temperature and feed it back to the control box 2. The control box 2 immediately reduces the speed of the centrifugal fan 61 and briefly sprays air through the back-blowing air bag 42 to form an airflow barrier, further preventing the high-temperature sparks from adhering to the filter element 41 and causing safety risks.

[0038] When the centrifugal fan 61 generates a large amount of vibration and noise during operation, the sound insulation frame 52 wrapped around the outside of the centrifugal fan 61, through the double-layer sound insulation structure of cold-rolled steel plate 522 and damping sound insulation plate 521, greatly blocks the outward transmission of noise. At the same time, the centrifugal glass wool 53 in the interlayer absorbs aerodynamic noise, greatly improving the noise reduction effect. The rubber vibration damping pad 54 between the sound insulation frame 52 and the fan reduces the transmission of fan vibration to the equipment box. Meanwhile, the air inlet pipe 63 connecting the fan and the dust collector box 1 adopts a flexible corrugated pipe to avoid resonance noise caused by rigid contact. The noise reduction effect is good and the practicality is strong.

Claims

1. A welding fume dust collector of noise reduction type, comprising a dust collector box (1) and a control box (2) arranged at one side of the dust collector box (1), characterized in that, It also includes a spark capture assembly (3), a dust removal assembly (4), a noise reduction assembly (5), and a fan assembly (6), wherein: The control box (2) is provided with a power junction box (11) below it, and the dust collector box (1) is fixed with lifting hooks (12) by bolts at the four corners of the top. The spark capture assembly (3) includes an air inlet box (31), an air inlet (32), a V-shaped baffle (33), a coarse-mouthed filter wire mesh (34), a fine-mouthed filter wire mesh (35), and an infrared temperature sensor (36). The air inlet (32) is funnel-shaped with a slightly smaller opening facing outward. The V-shaped baffle (33) is divided into two layers and welded inside the air inlet box (31) and staggered in the vertical direction. The coarse-mouthed filter wire mesh (34) is fixed below the V-shaped baffle (33) by bolts. The noise reduction component (5) includes a hanger (51), a sound insulation frame (52), centrifugal glass wool (53), rubber vibration damping pads (54), and a damping spring (55). The sound insulation frame (52) has a double-layer structure, with the inner layer being a damping sound insulation board (521) and the outer layer being a cold-rolled steel plate (522).

2. The noise-reducing welding fume dust collector according to claim 1, characterized in that: The dust collector housing (1) is provided with a dust removal chamber (13) inside. A clean air chamber (14) is provided on one side of the dust removal chamber (13). A dust collection cart (15) is symmetrically provided below the dust removal chamber (13). The air inlet box (31) is symmetrically fixed to both sides of the dust collector housing (1) by screws and is connected to the dust removal chamber (13).

3. The noise-reducing welding fume dust collector according to claim 2, characterized in that: The fine-mesh filter wire mesh (35) is fixed to the connection between the dust removal chamber (13) and the air inlet box (31) by bolts, and the infrared temperature sensor (36) is fixed to the inside of the dust removal chamber (13) by screws and located above the fine-mesh filter wire mesh (35).

4. The noise-reducing welding fume dust collector according to claim 3, characterized in that: The sound insulation frame (52) is fixed to the hanger (51) by bolts. The hanger (51) is symmetrically fixed to the top of the dust collector box (1) by screws. The centrifugal glass wool (53) is filled inside the sound insulation frame (52). The shock-absorbing spring (55) is welded to the bottom of the sound insulation frame (52).

5. The noise-reducing welding fume dust collector according to claim 1, characterized in that: The dust removal assembly (4) includes a filter element (41), which is provided with several elements in a matrix and embedded inside the dust removal chamber (13). The filter element (41) has a cylindrical structure and its opening is connected to the clean air chamber (14). A back-blowing air bag (42) is symmetrically fixed on one side of the clean air chamber (14) by screws.

6. The noise-reducing welding fume dust collector according to claim 5, characterized in that: The backflush air bag (42) is symmetrically provided with electromagnetic valves (43) on both sides. An air blowing pipe (44) is installed on one side of the electromagnetic valve (43). The air blowing pipe (44) faces the opening of the filter element (41). The fan assembly (6) includes a centrifugal fan (61). The centrifugal fan (61) is installed inside the sound insulation frame (52).

7. A noise-reducing welding fume dust collector according to claim 6, characterized in that: The rubber vibration damping pad (54) is attached to the bottom of the centrifugal fan (61). The centrifugal fan (61) has an air outlet pipe (62) on one side. The air outlet pipe (62) is a flat-topped pyramidal shape with a slightly larger opening facing outward. Several heat dissipation holes (16) are provided above the air outlet pipe (62). The bottom of the centrifugal fan (61) has an air inlet pipe (63). The air inlet pipe (63) is a flexible corrugated pipe and is connected to the clean air chamber (14).

Images