Air draft device for spray booth of new energy inverter component spraying production line

Abstract

An air draft device for a spray booth of a new energy inverter component spraying production line comprises an air supply unit and a purification unit, the purification unit is arranged at the lower end of the spray booth, and a filtering opening is formed in the lower bottom face of the spray booth; the purification unit comprises a purification box arranged at the lower end of the paint spraying chamber and connected with the filtering opening, and an air draft component connected with the purification box. And filter screen structures are arranged at the joints of the purification box and the filter opening and the joints of the purification box and the air draft component correspondingly, and the purification box is filled with filter cotton. According to the utility model, through the top air supply and bottom air draft purification system formed by the air supply unit and the purification unit, paint mist and gas move from top to bottom and cannot be in secondary contact with a coated surface, and the flow velocity of the paint mist and the gas is promoted through the top air supply and bottom air draft mode, so that the paint mist and gas purification device has the advantage of high purification efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical painting, and in particular relates to an exhaust device for a paint spraying room of a new energy inverter component spraying production line. Background Art

[0002] When spraying the new energy inverter components, the wing plates are sprayed through a dry spray booth. The exhaust fan of the dry spray booth is usually set at the top or rear of the booth. For example, the document with the authorization announcement number CN219985144U discloses a dry spray booth exhaust system, including a room body and a purification mechanism, the purification mechanism is arranged on the back of the room body, the purification mechanism includes a mounting frame installed on the back of the room body, the purification mechanism also includes an exhaust fan, a paint mist purifier, a filter box and an adsorption component, the exhaust fan is installed at the upper part of the inner cavity of the mounting frame, the paint mist purifier is installed in the middle part of the inner cavity of the mounting frame, and the filter box is installed at the lower part of the inner cavity of the mounting frame.

[0003] However, the device still has the following problems: the exhaust fan of the device is installed on the upper part of the inner cavity of the installation frame, and when the exhaust fan exhausts air, the paint mist and gas move from bottom to top, which easily causes pollution to the painted surface. Utility Model Content

[0004] In view of the above-mentioned problems, the purpose of the utility model is to provide an exhaust device for a paint spraying room of a new energy inverter component spraying production line. The purification system with top air supply and bottom exhaust is formed by an air supply unit and a purification unit, so that the paint mist and gas move from top to bottom. Not only will they not contact the painted surface for a second time, but the form of top air supply and bottom exhaust promotes the flow rate of the paint mist and gas, and has the advantage of high purification efficiency.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A ventilation device for a paint booth of a new energy inverter component spraying production line, comprising an air supply unit and a purification unit, wherein the purification unit is arranged at the lower end of the paint booth, and a filter port is arranged on the lower bottom surface of the paint booth; the purification unit comprises a purification box arranged at the lower end of the paint booth and connected to the filter port, and an exhaust component connected to the purification box; a filter screen structure is arranged at the connection between the purification box, the filter port and the exhaust component, and the purification box is filled with filter cotton.

[0007] As a further preferred embodiment of the present invention, the purification box includes a tube body and two first connecting ring plates arranged on the outer periphery of both ends of the tube body; the filter port includes a hole section adapted to the tube body, and an expanded diameter hole section arranged at the upper end of the hole section and adapted to the first connecting ring plate; the exhaust component includes an exhaust fan, and an exhaust pipe arranged between the exhaust fan and the tube body and connected to the first connecting ring plate.

[0008] As a further preferred embodiment of the present invention, the purification box further comprises a replacement pipe detachably mounted in the tube body, the filter screen structure is mounted on both ends of the replacement pipe, and the interior of the replacement pipe is filled with the filter cotton.

[0009] As a further preferred embodiment of the present invention, the replacement pipe includes a pipe body, a second connecting ring plate arranged at the upper end of the pipe body, a side embedding groove arranged on the first connecting ring plate and used to insert the second connecting ring plate, and a connecting piece arranged on the second connecting ring plate and used to be detachably connected to the bottom surface of the side embedding groove.

[0010] As a further preferred embodiment of the present invention, the replacement pipe further includes at least two sliding bars arranged on both sides of the outer wall of the pipe body, and a sliding groove arranged on the inner wall of the pipe body and used to embed the sliding bars.

[0011] As a further preferred embodiment of the present invention, the connecting member includes a threaded groove arranged on the bottom surface of the side embedding groove, a mounting hole arranged on the second connecting ring plate, and an external threaded column passing through the mounting hole and screwed to the threaded groove.

[0012] As a further preferred embodiment of the present invention, the connecting member further comprises a vertical rod arranged at the upper end of the external threaded column, and a force applying block arranged at the upper end of the vertical rod.

[0013] As a further preferred embodiment of the present invention, the mounting hole includes a first aperture segment matching the external threaded column, a second aperture segment connected to the first aperture segment and matching the vertical rod, and a countersunk groove connected to the second aperture segment and matching the force block; the inner diameter of the second aperture segment is smaller than the inner diameter of the first aperture segment.

[0014] As a further preferred embodiment of the present invention, the connecting member further comprises a handle hingedly mounted on the upper surface of the force applying block.

[0015] As a further preferred embodiment of the present invention, the filter cotton is sequentially provided with primary filter cotton, top filter cotton and bottom filter cotton from the filter port to the air exhaust component.

[0016] In summary, the utility model has the following beneficial effects:

[0017] The exhaust device provided by the utility model forms a purification system with top air supply and bottom exhaust through the air supply unit and the purification unit, so that paint mist and gas move from top to bottom, not only will they not contact the painted surface for a second time, but the form of top air supply and bottom exhaust promotes the flow rate of paint mist and gas and improves the purification efficiency.

[0018] The exhaust device provided by the utility model has a purification unit arranged at the bottom of the paint spraying room, and there is no need to climb up to operate when replacing the filter cotton, which has the advantages of simple operation and high safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0020] Attached Figure 2 It is a structural schematic diagram of the purification box of the utility model.

[0021] Attached Figure 3 It is a structural schematic diagram of the pipe body of the utility model.

[0022] Attached Figure 4 It is a schematic diagram of the structure of the replacement pipeline of the utility model.

[0023] Attached Figure 5 It is a structural schematic diagram of the connecting piece of the utility model.

[0024] Description of the drawings: spray booth a, filter port 1, purification box 2, air extraction component 3, filter screen structure 4, filter cotton 5;

[0025] Hole section 101, diameter-enlarged hole section 102;

[0026] Pipe body 201, first connecting ring plate 202, replacement pipe 203;

[0027] Pipe body 203a, second connecting ring plate 203b, side embedded groove 203c, connecting piece 203d, sliding bar 203e, sliding groove 203f;

[0028] Thread groove 203d1, mounting hole 203d2, external thread column 203d3, vertical rod 203d4, force block 203d5, handle 203d6;

[0029] A first aperture section 203d2-1, a second aperture section 203d2-2, and a countersunk groove 203d2-3;

[0030] Exhaust fan 301 and exhaust pipe 302. DETAILED DESCRIPTION

[0031] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1

[0034] The present embodiment provides an exhaust device for a paint booth of a new energy inverter component spraying production line, comprising an air supply unit and a purification unit, wherein:

[0035] The air supply unit is arranged at the upper end of the spray booth a, and the air source is indoors, and is used to supply air to the spray booth, and the air supply volume range is 19000~20000m 3 / h;

[0036] The purification unit is arranged at the lower end of the spray booth a, and a filter port 1 is arranged on the lower bottom surface of the spray booth a; the purification unit comprises a purification box 2 arranged at the lower end of the spray booth a and connected to the filter port 1, and an air extraction component 3 connected to the purification box 2;

[0037] The connection between the purification box 2, the filter port 1 and the air extraction member 3 is provided with a filter structure 4, and the purification box 2 is filled with filter cotton 5;

[0038] The exhaust component 3 is used to extract the exhaust gas in the paint spraying room, and its exhaust volume range is 19000~20000m 3 / h, but it should be noted that the exhaust volume should be slightly smaller than the supply air volume.

[0039] It is understandable that the purification unit is arranged at the lower end of the spray booth a. In the actual scenario, a pit should be excavated at the lower part of the spray booth a, and then the purification unit should be placed in the pit and connected to the spray booth a. The rear end of the exhaust component needs to be connected to the external exhaust gas treatment equipment. The exhaust gas treatment equipment is a prior art, so it is not repeated in this embodiment. The filter structure 4 adopts a double-layer galvanized grille, and the inner layer of the grille can also be laid with a wire mesh, which mainly plays the role of fixing the filter cotton 5.

[0040] As a further preferred embodiment of this embodiment, the filter cotton 5 is provided with primary filter cotton, top filter cotton, and bottom filter cotton in sequence from the filter port 1 to the air extraction component 3. Among them, the primary filter cotton is generally non-woven fabric, which is used for coarse filtration; the top filter cotton (such as 560G, 600G) is used for fine filtration, with a filtration level of F-5, and has three states: full stickiness, semi-stickiness, and dryness; the bottom filter cotton is generally a glass fiber paint-blocking net, which is composed of a dense structure of monofilament glass fibers, with a filtration level of G2 and a dust holding capacity of about 4kg / m 2 The filter cotton 5 needs to be replaced as a whole. The replacement condition is that the wind resistance is detected. Generally, it is replaced when the wind resistance reaches 300 Pa. When replacing, the staff enters the interior of the spray booth a, and then opens the filter structure 4 to take out the filter cotton 5 for replacement. There is no need to climb high, which has the advantages of simple operation and high safety factor.

[0041] When this embodiment is working, the air supply unit and the purification unit are first turned on at the same time, forming a purification form of top air supply and bottom exhaust. The air extracted from the bottom enters the purification box 2 and is filtered by three layers of filter cotton, thereby achieving the purpose of purifying paint mist. The air exhausted by the exhaust component 3 is not directly discharged into the atmosphere, but enters the exhaust gas treatment equipment for further purification.

[0042] As a further preferred embodiment of the present invention, the purification box 2 includes a tube body 201, two first connecting ring plates 202 arranged on the outer periphery of both ends of the tube body 201; the filter port 1 includes a hole section 101 adapted to the tube body 201, and an enlarged diameter hole section 102 arranged at the upper end of the hole section 101 and adapted to the first connecting ring plate 202; the air extraction component 3 includes an exhaust fan 301, and an exhaust pipe 302 arranged between the exhaust fan 301 and the tube body 201 and connected to the first connecting ring plate 202. The advantages of such an arrangement are: first, the bottom surface of the spray booth remains flat after the purification box 2 is installed; second, the purification box 2 can be removed separately for maintenance.

[0043] Example 2

[0044] This embodiment optimizes the structure on the basis of the embodiment 1, in order to improve the replacement efficiency and safety of the filter cotton 5 .

[0045] In this embodiment, the purification box 2 further includes a replacement pipe 203 detachably installed in the tube body 201 , the filter structure 4 is installed at both ends of the replacement pipe 203 , and the interior of the replacement pipe 203 is filled with the filter cotton 5 .

[0046] As a further preference of this embodiment, the replacement pipe 203 includes a pipe body 203a, a second connecting ring plate 203b arranged at the upper end of the pipe body 203a, a side embedding groove 203c arranged on the first connecting ring plate 202 and used to be inserted into the second connecting ring plate 203b, and a connecting piece 203d arranged on the second connecting ring plate 203b and used to be detachably connected to the bottom surface of the side embedding groove 203c.

[0047] As a further preferred embodiment of the present invention, the replacement pipe 203 further comprises at least two sliding bars 203e arranged on both sides of the outer wall of the pipe body 203a, and a sliding groove 203f arranged on the inner wall of the pipe body 201 and used to embed the sliding bars 203e. It can be understood that the upper opening of the sliding groove 203f at least passes through the surface of the pipe body 201 to ensure that the pipe body 203a can be removed from the upper end of the pipe body 201 as a whole.

[0048] As a further preferred embodiment of this embodiment, the connecting member 203d includes a threaded groove 203d1 arranged on the bottom surface of the side embedding groove 203c, a mounting hole 203d2 arranged on the second connecting ring plate 203b, and an external threaded column 203d3 passing through the mounting hole 203d2 and screwed to the threaded groove 203d1.

[0049] As a further preferred embodiment of the present invention, the connecting member 203d also includes a vertical rod 203d4 arranged at the upper end of the external threaded column 203d3, a force block 203d5 arranged at the upper end of the vertical rod 203d4, and a handle 203d6 hingedly mounted on the upper surface of the force block 203d5; the mounting hole 203d2 includes a first aperture section 203d2-1 matching the external threaded column 203d3, a second aperture section 203d2-2 connected to the first aperture section 203d2-1 and matching the vertical rod 203d4, and a countersunk groove 203d2-3 connected to the second aperture section 203d2-2 and matching the force block 203d5; the inner diameter of the second aperture section 203d2-2 is smaller than the inner diameter of the first aperture section 203d2-1.

[0050] It should be noted that the structural setting of the connecting piece 203d, in addition to satisfying the condition of being detachably connected to the bottom surface of the side embedding groove 203c on the second connecting ring plate 203b, also has the function of lifting the entire replacement pipe 203 to replace the pipe 203 and the filter cotton 5 inside. The specific working principle of the connecting piece 203d is as follows: when installing the replacement pipe 203, rotate the force block 203d5 so that the vertical rod 203d4 drives the external thread column 203d3 to screw into the thread groove 203d1. When the external thread column 203d3 is completely screwed into the thread groove 203d1, the vertical rod 203d4 enters the first aperture section 203d2-1, and the force block 203d5 is embedded in the countersunk groove 203d2-3; when lifting the replacement pipe 203, the handle 203d4 is rotated to rotate the handle 203d5. d6 is pulled out, and then the handle 203d6 is rotated to drive the force block 203d5 to rotate, and finally the external thread column 203d3 is screwed out from the thread groove 203d1, and then the handle 203d6 is pulled upward. Since the external thread column 203d3 cannot enter the second aperture section 203d2-2, the external thread column 203d3 clamps the entire second connecting ring plate 203b, and then the second connecting ring plate 203b is pulled upward, and finally the entire replacement pipe 203 is removed from the pipe body 201.

[0051] This embodiment can achieve the purpose of complete installation and replacement of multi-layer filter cotton by replacing the structural setting of the pipeline. This is convenient for replacing the filter cotton and avoids the step of requiring workers to take out the filter cotton separately, thereby reducing the problem of secondary flying of adsorbed particulate dust during replacement and improving the safety of operation.

[0052] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An exhaust device for a spray booth of a new energy inverter component spray production line, comprising an air supply unit and a purification unit, wherein the purification unit is arranged at the lower end of the spray booth (a), characterized in that: The bottom surface of the spray booth (a) is provided with a filter port (1); the purification unit comprises a purification box (2) arranged at the lower end of the spray booth (a) and connected to the filter port (1), and an air extraction component (3) connected to the purification box (2); a filter screen structure (4) is provided at the connection between the purification box (2) and the filter port (1) and the air extraction component (3); and the purification box (2) is filled with filter cotton (5).

2. The exhaust device for a paint booth of a new energy inverter component spraying production line according to claim 1 is characterized in that: The purification box (2) comprises a tube body (201), and two first connecting ring plates (202) arranged on the outer periphery of both ends of the tube body (201); the filter port (1) comprises a hole section (101) adapted to the tube body (201), and an enlarged diameter hole section (102) arranged at the upper end of the hole section (101) and adapted to the first connecting ring plate (202); the air extraction component (3) comprises an air exhaust fan (301), and an air extraction pipe (302) arranged between the air exhaust fan (301) and the tube body (201) and connected to the first connecting ring plate (202).

3. The exhaust device for a paint booth of a new energy inverter component spraying production line according to claim 2 is characterized in that: The purification box (2) further comprises a replacement pipe (203) detachably mounted in the pipe body (201), the filter screen structure (4) being mounted at both ends of the replacement pipe (203), and the interior of the replacement pipe (203) being filled with the filter cotton (5).

4. The exhaust device for a paint booth of a new energy inverter component spraying production line according to claim 3 is characterized in that: The replacement pipe (203) comprises a pipe body (203a), a second connecting ring plate (203b) arranged at the upper end of the pipe body (203a), a side embedding groove (203c) arranged on the first connecting ring plate (202) and used for inserting the second connecting ring plate (203b), and a connecting piece (203d) arranged on the second connecting ring plate (203b) and used for detachably connecting to the bottom surface of the side embedding groove (203c).

5. The exhaust device for a paint booth of a new energy inverter component spraying production line according to claim 4 is characterized in that: The replacement pipe (203) further comprises at least two sliding bars (203e) arranged on both sides of the outer wall of the pipe body (203a), and a sliding groove (203f) arranged on the inner wall of the pipe body (201) and used for embedding the sliding bars (203e).

6. The exhaust device for a paint booth of a new energy inverter component spraying production line according to claim 4 is characterized in that: The connecting member (203d) comprises a threaded groove (203d1) arranged on the bottom surface of the side embedding groove (203c), a mounting hole (203d2) arranged on the second connecting ring plate (203b), and an external threaded column (203d3) passing through the mounting hole (203d2) and threadedly connected to the threaded groove (203d1).

7. The exhaust device for a paint booth of a new energy inverter component spraying production line according to claim 6 is characterized in that: The connecting member (203d) further comprises a vertical rod (203d4) arranged at the upper end of the external threaded column (203d3), and a force applying block (203d5) arranged at the upper end of the vertical rod (203d4).

8. The exhaust device for a paint booth of a new energy inverter component spraying production line according to claim 7 is characterized in that: The mounting hole (203d2) comprises a first aperture section (203d2-1) matching the external threaded column (203d3), a second aperture section (203d2-2) connected to the first aperture section (203d2-1) and matching the vertical rod (203d4), and a countersunk groove (203d2-3) connected to the second aperture section (203d2-2) and matching the force applying block (203d5); the inner diameter of the second aperture section (203d2-2) is smaller than the inner diameter of the first aperture section (203d2-1).

9. The exhaust device for a paint booth of a new energy inverter component spraying production line according to claim 7, characterized in that: The connecting member (203d) further comprises a handle (203d6) hingedly mounted on the upper surface of the force applying block (203d5).

10. The exhaust device for a paint booth of a new energy inverter component spraying production line according to claim 1, characterized in that: The filter cotton (5) is provided with primary filter cotton, top filter cotton, and bottom filter cotton in sequence from the filter opening (1) to the air extraction component (3).

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