Back box smoke purification device

Abstract

The embodiment of the utility model discloses a back box smoke purification device, which comprises a diffusion area, an air inlet located at the bottom of a main body, a back box located in the main body and connected with the air inlet through a pipeline, and a diffusion cavity transversely communicated with the top of the back box; the purification area comprises a corresponding filtering assembly located at the bottom of the diffusion cavity, and a fan is arranged at the bottom of the filtering assembly; and the discharge area comprises an exhaust cavity located at the bottom of the fan, and the exhaust cavity communicates with an exhaust port located in the top of the main body through a backflow cavity. By adopting a rotary flue gas purification gas dredging mode and adopting a lower-near-rotary upper-exhaust structure, the flue gas circulation space is increased in an effective space, the flue gas is prevented from being condensed at a gas inlet to block a pipeline under a welding working condition, the working efficiency is improved, the cost is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The disclosed embodiments relate to the technical field of fume purification equipment, and in particular to a back-box fume purification device. Background Art

[0002] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present disclosure, and shall not necessarily be regarded as an admission or any form of suggestion that the information constitutes the relevant technology that has been known to ordinary technicians in the field.

[0003] In the related technology, smoke purification equipment generally adopts straight-through exhaust filtration, which is more common in air purification applications. Generally, the purpose of air purification is achieved by eliminating particulate matter and odor in the air through filter layers and chemical methods. However, in view of industry characteristics, such as in the electronic welding process, a large amount of condensable smoke containing rosin is generated. The straight-through filtration structure has limited space, and the density of condensable particles increases after the smoke enters, which is easy to condense quickly. After a period of use, a large amount of condensation occurs at the air inlet, but the filter part has not reached saturation, resulting in the need to frequently clean the pipeline, increasing workload, affecting work efficiency, and reducing pipeline service life. Utility Model Content

[0004] To this end, the embodiment of the present disclosure provides a back box smoke purification device to solve the above-mentioned technical problems.

[0005] In order to achieve the above objectives, the embodiments of the present disclosure provide the following technical solutions:

[0006] In a first aspect of the embodiments of the present disclosure, a back box fume purification device is provided, comprising a main body, the main body comprising

[0007] The diffusion zone includes an air inlet located at the bottom of the main body, the air inlet is connected to a back box located inside the main body and a diffusion chamber laterally connected to the top of the back box through a pipeline;

[0008] The purification zone includes a filter assembly located at the bottom of the diffusion chamber, and a fan is provided at the bottom of the filter assembly;

[0009] The discharge area includes an exhaust cavity at the bottom of the fan, wherein the exhaust cavity is connected to an exhaust port at the top of the main body through a reflux cavity;

[0010] The discharge area seals the purification area inside the main body, and a reflux cavity is formed between the two. The air inlet passes through the reflux cavity and is located outside the main body. The filter component separates the diffusion cavity from the exhaust cavity.

[0011] In one embodiment of the present disclosure, the bottom of the back box is connected to the air inlet through a pipe, the top lateral opening of the back box is riveted to the side opening of the diffusion chamber, and the top of the back box is arc-shaped toward one side of the diffusion chamber.

[0012] In one embodiment of the present disclosure, a spacing channel is provided in the main body, the spacing channel is connected with the exhaust cavity to form a reflux cavity, and the diffusion cavity is separated from the reflux cavity.

[0013] In one embodiment of the present disclosure, exhaust noise reduction grilles are provided in the spacing channels located on both sides of the back box.

[0014] In one embodiment of the present disclosure, the filter assembly includes a multi-stage filter layer and an activated carbon filter layer, the multi-stage filter layer is close to the diffusion chamber, and the activated carbon filter layer is close to the fan side.

[0015] In one embodiment of the present disclosure, the multi-stage filtration layer includes a pre-filter cotton layer, a primary filter, a medium filter and a high efficiency filter from one side of the diffusion chamber to one side of the activated carbon filter layer.

[0016] In one embodiment of the present disclosure, a control panel and an inspection door are provided on the outer surface of the main body, a power socket is provided on the side, and universal wheels are provided on the bottom.

[0017] According to the embodiments of the present disclosure, the fume purification device has the following advantages: it includes a main body consisting of a diffusion zone, a purification zone and a discharge zone, wherein the diffusion zone includes an air inlet located at the bottom of the main body, the air inlet is connected to the back box located inside the main body through a pipeline, and a diffusion chamber connected laterally to the top of the back box; the purification zone includes a filter assembly corresponding to the bottom of the diffusion chamber, and a fan is provided at the bottom of the filter assembly; the discharge zone includes an exhaust chamber located at the bottom of the fan, and the exhaust chamber is connected to the exhaust port located at the top of the main body through a reflux chamber; the discharge zone closes the purification zone inside the main body, and a reflux chamber is formed between the two, the air inlet passes through the reflux chamber and is located outside the main body, and the filter assembly separates the diffusion chamber from the exhaust chamber. It adopts a rotary fume purification gas dredging method and a structure of lower air intake and upper exhaust, which increases the space for fume circulation in an effective space, avoids the fume under welding conditions from condensing and blocking the pipeline at the air inlet, improves work efficiency, reduces costs, and increases the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the related technologies, the following briefly introduces the drawings required for the embodiments or the related technical descriptions. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present disclosure can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present disclosure, should still fall within the scope of the technical contents disclosed in the present disclosure.

[0020] Figure 1 is a three-dimensional diagram of a back box fume purification device according to an exemplary embodiment;

[0021] Figure 2 is a front view of a back box fume purification device according to an exemplary embodiment;

[0022] Figure 3 is a left-side internal structure schematic diagram of a back box fume purification device according to an exemplary embodiment;

[0023] Figure 4 It is a schematic diagram of the internal structure of a back box smoke purification device from a rear view according to an exemplary embodiment.

[0024] In the figure: 1. Main body; 2. Air inlet; 3. Back box; 4. Diffusion chamber; 5. Fan; 6. Exhaust chamber; 7. Reflux chamber; 8. Exhaust port; 9. Exhaust noise reduction grille; 10. Activated carbon filter layer; 11. Pre-filter cotton layer; 12. Primary filter; 13. Medium filter; 14. High efficiency filter; 15. Control panel; 16. Inspection door; 17. Power socket; 18. Universal wheel. DETAILED DESCRIPTION

[0025] The following is a description of the implementation methods of the present disclosure by specific specific embodiments. People familiar with the technology can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0026] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present disclosure. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present disclosure without substantially changing the technical content.

[0027] like Figure 1-4As shown, it shows a smoke purification device with a back box 3 of an exemplary embodiment. It includes a main body 1 composed of a diffusion zone, a purification zone and a discharge zone, wherein the diffusion zone includes an air inlet 2 located at the bottom of the main body 1, and the air inlet 2 is connected to the back box 3 located inside the main body 1 through a pipeline, and a diffusion chamber 4 that is laterally connected to the top of the back box 3; the purification zone includes a filter assembly corresponding to the bottom of the diffusion chamber 4, and a fan 5 is provided at the bottom of the filter assembly; the discharge zone includes an exhaust chamber 6 located at the bottom of the fan 5, and the exhaust chamber 6 is connected to the exhaust port 8 located at the top of the main body 1 through a reflux chamber 7; the discharge zone closes the purification zone inside the main body 1, and a reflux chamber 7 is formed between the two, the air inlet 2 passes through the reflux chamber 7 and is located outside the main body 1, and the filter assembly separates the diffusion chamber 4 from the exhaust chamber 6.

[0028] It adopts a rotary fume purification gas unblocking method and a lower air intake and upper exhaust structure to increase the space for fume circulation within the effective space, avoid fume condensation and clogging of the pipe at the air inlet 2 under welding conditions, improve work efficiency, reduce costs and increase equipment service life.

[0029] In one embodiment of the present disclosure, the bottom of the back box 3 is connected to the air inlet 2 through a pipe, and the top lateral opening of the back box 3 is riveted to the side opening of the diffusion chamber 4. The top of the back box 3 is arc-shaped toward the side of the diffusion chamber 4. The arc-shaped top of the back box 3 can effectively alleviate the obstruction of the passage of smoke inside it, ensure the smooth passage of smoke, and avoid condensed particles in the smoke from sticking to the back box 3.

[0030] After the smoke enters the diffusion chamber 4, it can quickly enter the purification component under the negative pressure of the fan 5, and at the same time, the fan 5 body 1 is placed in a clean air environment after filtering and purification, protecting the fan 5 from smoke pollution. Therefore, there is no special requirement for the structural design of this part, and the diffusion chamber 4 adapted to the shape of the body 1 can increase the internal space.

[0031] In one embodiment of the present disclosure, in order to prevent smoke leakage, the pipeline in the main body 1 is independent of the main body 1 itself. Specifically, a spacing channel is provided in the main body 1, and the spacing channel is connected to the exhaust chamber 6 to form a reflux chamber 7, and the diffusion chamber 4 is isolated from the reflux chamber 7.

[0032] In one embodiment of the present disclosure, an exhaust noise reduction grille 9 is provided in the interval channel located on both sides of the back box 3. During the discharge of the treated flue gas, the exhaust noise reduction grille 9 can buffer the airflow, absorb part of the kinetic energy of the exhaust airflow, reduce the sound of the airflow flowing rapidly through the reflux cavity 7, and achieve the purpose of noise reduction.

[0033] In one embodiment of the present disclosure, smoke is purified in the form of hierarchical filtration. Specifically, the filtration component includes a multi-stage filtration layer and an activated carbon filtration layer 10. The multi-stage filtration layer is close to the diffusion chamber 4, and the activated carbon filtration layer 10 is close to the fan 5. First, the particulate matter in the smoke is filtered out, and then the adsorption performance of activated carbon is used to physically and chemically adsorb VOC (volatile organic compounds) in the smoke to achieve the purpose of purification.

[0034] The multi-stage filter layer includes a pre-filter cotton layer 11 , a primary filter 12 , a medium filter 13 and a high efficiency filter 14 from one side of the diffusion chamber 4 to one side of the activated carbon filter layer 10 .

[0035] Pre-filter cotton: Filters particles and suspended solids larger than 5.0μm. In view of the characteristics of the industry, during the electronic welding process, a large amount of condensable fumes containing rosin are generated. The pre-filter cotton can filter and absorb most of these substances, extending the service life of the medium efficiency filter 13, high efficiency filter 14 and activated carbon filter;

[0036] Primary filter 12: Filters 1.0-5.0μm particles and suspended solids. The primary filter 12 uses aluminum alloy material as the frame and galvanized iron wire as the skeleton. The main body 1 filter material uses high-quality chemical fiber non-woven fabric, which has the characteristics of small resistance, large air volume and large dust holding capacity.

[0037] Medium efficiency filter 13: Filter 1-0.5μm particles and suspended solids. The plate-type medium efficiency filter 13 is used. The main body 1 filter material is synthetic fiber or composite fiber filter material, equipped with an internal metal bracket, the outer frame is made of aluminum alloy frame, and the filter screen is made into a V shape to increase the filtering area. It has the advantages of firm structure, low resistance, large air volume, and long service life.

[0038] High efficiency filter 14: Filters particles and suspended solids below 0.3μm. A high efficiency filter 14 without a partition is used, and the filter material of the main body 1 is ultra-fine glass fiber filter paper, and hot melt glue is used as a separator of the filter element. It has the advantages of small size, light weight, easy installation, stable efficiency, and uniform wind speed.

[0039] Activated carbon filter: used to adsorb VOC (volatile organic compounds) in the filtered air. Depending on the different components of VOC, physical adsorption, chemical adsorption, or physical / chemical adsorption is used.

[0040] In one embodiment of the present disclosure, a control panel 15 and an inspection door 16 are provided on the outer surface of the main body 1, a power socket 17 is provided on the side, and a universal wheel 18 is provided on the bottom. The inspection door 16 enables replacement and maintenance of the filter assembly.

[0041] The overall structure of the equipment adopts a bottom-mounted fan 5, and the air inlet of the fan 5 is in the filter chamber. The bottom air inlet is connected to the on-site workstation exhaust pipe, and the filtered smoke is transported to the filter chamber through the built-in back box 3 set in the exhaust channel. The filtered smoke passes through the negative pressure generated by the fan 5, and passes through the pre-filter cotton, the primary filter 12, the medium efficiency filter 13, the high efficiency filter 14 and the activated carbon filter in sequence. The clean air after purification and filtration is discharged into the exhaust chamber 6 of the equipment from the exhaust port of the fan 5, and passes through the noise reduction grille set in the exhaust chamber 6 to consume the kinetic energy of the airflow, reduce noise, and then be discharged from the equipment. The bottom-mounted fan 5 arrangement can reduce the center height of the equipment and improve the stability of equipment operation.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Although the present disclosure has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made to the present disclosure. Therefore, these modifications or improvements made without departing from the spirit of the present disclosure are within the scope of protection claimed by the present disclosure.

Claims

1. A back box fume purification device, comprising a main body, characterized in that: The subject includes The diffusion zone includes an air inlet located at the bottom of the main body, the air inlet is connected to a back box located inside the main body and a diffusion chamber laterally connected to the top of the back box through a pipeline; The purification zone includes a filter assembly located at the bottom of the diffusion chamber, and a fan is provided at the bottom of the filter assembly; The discharge area includes an exhaust cavity at the bottom of the fan, wherein the exhaust cavity is connected to an exhaust port at the top of the main body through a reflux cavity; The discharge area seals the purification area inside the main body, and a reflux cavity is formed between the two. The air inlet passes through the reflux cavity and is located outside the main body. The filter component separates the diffusion cavity from the exhaust cavity.

2. The back box fume purification device according to claim 1, characterized in that: The bottom of the back box is connected to the air inlet through a pipeline, the top lateral opening of the back box is riveted to the side opening of the diffusion chamber, and the top of the back box is an arc-shaped one side facing the diffusion chamber.

3. The back box fume purification device according to claim 2, characterized in that: A spacing channel is arranged in the main body, the spacing channel is communicated with the exhaust cavity to form a reflux cavity, and the diffusion cavity is separated from the reflux cavity.

4. The back box fume purification device according to claim 3, characterized in that: Exhaust noise reduction grilles are provided in the spacing channels located on both sides of the back box.

5. The back box fume purification device according to claim 1, characterized in that: The filter assembly comprises a multi-stage filter layer and an activated carbon filter layer, wherein the multi-stage filter layer is close to the diffusion cavity, and the activated carbon filter layer is close to the fan side.

6. The back box fume purification device according to claim 5, characterized in that: The multi-stage filter layer comprises a pre-filter cotton layer, a primary filter, a medium filter and a high efficiency filter from one side of the diffusion cavity to one side of the activated carbon filter layer.

7. The back box fume purification device according to claim 1, characterized in that: The outer surface of the main body is provided with a control panel and an inspection door, the side is provided with a power socket, and the bottom is provided with universal wheels.

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