Fresh air supply system of spraying production line
By designing a fresh air supply system in the spraying production line, using air cutouts and multi-stage filtration to treat air, the problems of cross-contamination and exhaust gas hazards during the spraying process are solved, and efficient air isolation and exhaust gas treatment are achieved.
Patent Information
- Application Number
- CN202422085094.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In the spraying production line, there is cross-contamination between each operating space and the peripheral air during the workpiece transfer process, the paint finish of the sprayed product is poor, and the exhaust gas may endanger the health of the personnel.
A fresh air supply system for spraying production lines is designed, including fresh air hoods, exhaust gas treatment devices, spray rooms, automatic dust removal rooms and UV rooms. It is connected through air cutouts and pipelines to form a fresh air curtain isolation operation space, and a multi-stage filtration and circulation system are set up to treat waste gas.
Effectively isolate the working space and peripheral air, prevent dust from entering, take away a small amount of overflowing waste gas in a timely manner, avoid air pollution, and improve product quality and personnel safety.
Smart Images
Figure CN223145083U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spraying processing, in particular to a fresh air supply system for a spraying production line. Background Art
[0002] Spraying is a processing method in which paint is atomized by a spray gun and coated on the surface of an object. The spraying operation has high production efficiency and is applicable to manual operation and industrial automation production. The application scope mainly includes fields such as hardware, plastics, furniture, military industry, and ships, and it is the most commonly used coating method today.
[0003] In the prior art, when automatically transporting between various spraying process treatment units, dust in the air falls on the surface of the workpiece to be sprayed or on the surface of the paint film, thereby resulting in poor surface finish of the sprayed product and affecting product quality. At the same time, there is also a problem that dust in the air invades the process operation space through the conveying channel and waste gas in the operation space invades the air through the conveying channel, endangering the health of personnel. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] The utility model provides a fresh air supply system for a spraying production line, aiming to solve the problem of cross-contamination between each operation space in the spraying production line and the surrounding air during the workpiece transfer process, and further solve the problem of waste gas treatment in the spray booth.
[0006] (2) Technical Solutions
[0007] In order to achieve the above purpose, the main technical solutions adopted by the utility model include: a fresh air cabinet, a waste gas treatment device, a spray booth, an automatic dust removal room, a paint supply room, and a UV room. The automatic dust removal room, the spray booth, and the UV room are connected to each other through corridors. Among them, air cuttings are provided at the connections of both ends of the spray booth and the UV room with the corridors, and the same air cuttings are provided at the top of the paint supply room. All the air cuttings are connected to the fresh air cabinet. The fresh air cabinet is connected to the first air inlet of the spray booth through a pipeline, the air outlet of the spray booth is connected to the waste gas treatment device through a pipeline, and a branch pipeline is provided between the two, and the branch pipeline is connected to the second air inlet of the spray booth.
[0008] Furthermore, the technical solution lies in that the first air inlet, the second air inlet, and the air outlet of the spray booth are all located at the top of the spray booth, and both the fresh air cabinet and the waste gas treatment device are fixed on the roof above the spray booth.
[0009] A first air distribution plate is installed at the first air inlet of the spray booth, a second air distribution plate is installed at the second air inlet, and a high-efficiency filter cotton is arranged below the first air distribution plate.
[0010] Further technical solutions are as follows: A secondary fan is installed at the air outlet of the spray booth, and an adjusting valve is provided at the second air inlet of the branch pipeline close to the spray booth. A workbench for spraying operations is arranged below the first air inlet inside the spray booth, and a water curtain guide plate is arranged below the air outlet. The water curtain guide plate guides the water curtain to a water tank at the bottom of the spray booth.
[0011] Further technical solutions are as follows: A first anemometer is provided inside the branch pipeline.
[0012] Further technical solutions are as follows: The automatic dust removal chamber is provided with a fresh air inlet and a first exhaust outlet. The fresh air inlet is connected to the air outlet of the fresh air cabinet, and the first exhaust outlet is connected to the outside.
[0013] Further technical solutions are as follows: Multiple groups of second exhaust outlets are opened at the top of the UV chamber, and the second exhaust outlets are connected to the outside.
[0014] Further technical solutions are as follows: The fresh air cabinet includes a fresh air supply fan, a three-stage filter bag, and a primary filter cotton. The three-stage filter bag is composed of a first filter bag, a second filter bag, and a third filter bag connected in sequence and is located between the fresh air supply fan and the primary filter cotton.
[0015] Further technical solutions are as follows: A differential pressure sensor is provided at each of the first filter bag, the second filter bag, and the third filter bag, and a second anemometer is provided at the outlet of the fresh air supply fan.
[0016] (III) Beneficial effects
[0017] The beneficial effects of the present utility model are as follows: By providing air cut openings at both ends of the spray booth and the UV chamber, fresh air forms an air curtain from top to bottom through the air cut openings, and then isolates the spraying operation space from the surrounding air through fresh air. During the transfer of workpieces on the production line, dust in the peripheral air is not easily introduced into the operation space, and a small amount of overflowed waste gas in the operation space can be taken away by fresh air in time, avoiding diffusion into the air and causing harm to personnel. In order to reduce the overflow of waste gas, a circulating fresh air system is formed in the spray booth through the branch pipeline, and the waste gas is more efficiently brought into the waste gas treatment device. Description of the drawings
[0018] Figure 1 It is a layout schematic diagram of the fresh air supply system for the spraying production line;
[0019] Figure 2 It is a schematic diagram of the internal structure of the spray booth in the fresh air supply system for the spraying production line.
[0020]
Description of the reference numerals
[0021] 1: Fresh air cabinet; 2: Exhaust gas treatment device; 3: Spray booth; 4: Automatic dust removal room; 5: Paint supply room; 6: UV room; 7: Air cut; 8: Adjusting valve; 9: Differential pressure sensor; 10: Second anemometer; 11: Fresh air supply fan; 12: Three-stage filter bag; 13: Primary filter cotton; 121: First filter bag; 122: Second filter bag; 123: Third filter bag; 31: First air inlet; 32: Second air inlet; 33: Air outlet; 34: First air distribution plate; 35: Second air distribution plate; 36: High-efficiency filter cotton; 37: Secondary fan; 38: Water curtain guide plate; 39: First anemometer; 41: Make-up air inlet; 42: First exhaust port; 61: Second exhaust port. Detailed implementation manners
[0022] For better explanation of the present utility model for easy understanding, the present utility model will be described in detail below in conjunction with the accompanying drawings through specific implementation manners.
[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0024] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0025] In the present utility model, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0026] The present utility model provides a fresh air supply system for a spraying production line, as Figure 1 and Figure 2As shown in the figure, it includes a fresh air cabinet 1, an exhaust gas treatment device 2, a spray booth 3, an automatic dust removal chamber 4, a paint supply chamber 5, and a UV chamber 6. The automatic dust removal chamber 4, the spray booth 3, and the UV chamber 6 are connected to each other through corridors. Among them, air cut-off openings 7 are provided at the connections of both ends of the spray booth 3 and the UV chamber 6 with the corridors, and air cut-off openings 7 of the same type are provided at the top of the paint supply chamber 5. All the air cut-off openings 7 are connected to the fresh air cabinet 1. The fresh air cabinet 1 is connected to the first air inlet 31 of the spray booth 3 through a pipeline. The air outlet 33 of the spray booth 3 is connected to the exhaust gas treatment device 2 through a pipeline, and a branch pipeline is provided between the two. The branch pipeline is connected to the second air inlet 32 of the spray booth 3.
[0027] In this embodiment, all the air cut-off openings 7 face downward and are connected to the fresh air cabinet 1 at the top. The outlet of the fresh air cabinet 1 is divided into multiple branches, and each air cut-off opening 7 is individually connected to one of the branches. At the same time, it should be noted that the fresh air moves downward, and there is an exhaust passage on the ground directly below the corresponding air cut-off opening 7 connected to the outside. Preferably, an exhaust fan can be provided at the end of the exhaust passage.
[0028] In this embodiment, the first air inlet 31, the second air inlet 32, and the air outlet 33 of the spray booth 3 are all located at the top of the spray booth 3. The fresh air cabinet 1 and the exhaust gas treatment device 2 are both fixed on the roof above the spray booth 3, which is convenient for connecting the fresh air on the roof and saves installation space at the same time.
[0029] In this embodiment, a first air distribution plate 34 is installed at the first air inlet 31 of the spray booth 3, a second air distribution plate 35 is installed at the second air inlet 32, and a filter cotton 36 is provided below the first air distribution plate 34.
[0030] The first air distribution plate 34 and the second air distribution plate 35 here are mainly to make the fresh air transported by the fresh air cabinet 1 flow more smoothly and the dust removal effect more stable. Preferably, the filter cotton 36 is selected as a high-efficiency filter cotton to further filter the fine particles in the fresh air.
[0031] In this embodiment, a secondary fan 37 is installed at the air outlet 33 of the spray booth 3, and an adjustment valve 8 is provided at the branch pipeline near the second air inlet 32 of the spray booth 3. The secondary fan 37 can accelerate the extraction rate of the exhaust gas, ensuring that the exhaust gas is discharged in time and does not accumulate in large quantities and overflow the air curtain below the air cut-off opening 7, causing pollution to the air around the equipment.
[0032] In this embodiment, a workbench for spraying operations is provided inside the spray booth 3 below the first air inlet 31, and a water curtain diversion plate 38 is provided below the air outlet 33. The water curtain diversion plate 38 diverts the water curtain to the pool at the bottom of the spray booth 3. The water curtain provided here conducts preliminary spraying on the exhaust gas pumped by the secondary fan 37, and can preliminarily absorb the harmful gases in the exhaust gas.
[0033] In this embodiment, a first anemometer 39 is provided in the branch pipeline. The valve 8 is adjusted according to the operation of the first anemometer 39 to control the return air volume of the branch pipeline. It should be noted here that in order to improve the utilization efficiency of fresh air, a part of the gas after preliminary water curtain spraying is guided back into the spray booth 3 through the branch pipeline and mixed with fresh air to purify the internal space of the spray booth 3. Such a cycle can effectively save energy consumption.
[0034] In this embodiment, the automatic dust removal chamber 4 is provided with a make-up air inlet 41 and a first exhaust outlet 42. The make-up air inlet 41 is connected to the air outlet 33 of the fresh air cabinet 1, and the first exhaust outlet 42 communicates with the outside. A plurality of groups of second exhaust outlets 61 are opened at the top of the UV chamber 6, and the second exhaust outlets 61 communicate with the outside.
[0035] In this embodiment, the fresh air cabinet 1 includes a fresh air supply fan 11, a three-stage filter bag 12, and a primary filter cotton 13. The three-stage filter bag 12 is composed of a first filter bag 121, a second filter bag 122, and a third filter bag 123 connected in sequence and is located between the fresh air supply fan 11 and the primary filter cotton 12. The fresh air cabinet 1 is mainly a device for purifying air through multi-stage filtration of air to ensure that the air it processes meets the standards for spraying and purification operations. In addition, a differential pressure sensor 9 is provided at each of the first filter bag 121, the second filter bag 122, and the third filter bag 123 for monitoring the wind pressure step by step to facilitate timely replacement of the ineffective filter bags. At the same time, a second anemometer 10 is provided at the outlet of the fresh air supply fan 11, and the power of the fresh air fan 11 is adjusted according to the second anemometer 10 to achieve the required air volume for work.
[0036] It should be understood that the above description of the specific embodiments of the present invention is only for explaining the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the above specific embodiments. Any changes or modifications made within the scope of the claims of the present invention should be covered by the protection scope of the present invention.
Claims
1. A fresh air supply system for a spraying production line, characterized in that, The fresh air supply system of the spraying production line includes a fresh air cabinet (1), an exhaust gas treatment device (2), a spray booth (3), an automatic dust removal room (4), a paint supply room (5), and a UV room (6); The automatic dust removal room (4), the spray booth (3), and the UV room (6) are connected to each other through corridors. Among them, air cutouts (7) are provided at the joints of both ends of the spray booth (3) and the UV room (6) with the corridors, and the same air cutouts (7) are provided at the top of the paint supply room (5). All the air cutouts (7) are connected to the fresh air cabinet (1); The fresh air cabinet (1) is connected to the first air inlet (31) of the spray booth (3) through a pipeline. The air outlet (33) of the spray booth (3) is connected to the exhaust gas treatment device (2) through a pipeline, and a branch pipeline is provided between the two. The branch pipeline is connected to the second air inlet (32) of the spray booth (3).
2. The fresh air supply system for the spraying production line according to claim 1, wherein The first air inlet (31), the second air inlet (32), and the air outlet (33) of the spray booth (3) are all located at the top of the spray booth (3). The fresh air cabinet (1) and the exhaust gas treatment device (2) are both fixed on the roof above the spray booth (3).
3. The fresh air supply system of the spraying production line according to claim 1, characterized in that A first air distribution plate (34) is installed at the first air inlet (31) of the spray booth (3), and a second air distribution plate (35) is installed at the second air inlet (32). A filter cotton (36) is provided below the first air distribution plate (34).
4. The fresh air supply system of the spraying production line according to claim 1, characterized in that A secondary fan (37) is installed at the air outlet (33) of the spray booth (3), and a regulating valve (8) is provided at the branch pipeline near the second air inlet (32) of the spray booth (3); A workbench for spraying operations is provided inside the spray booth (3) below the first air inlet (31), and a water curtain diversion plate (38) is provided below the air outlet (33). The water curtain diversion plate (38) guides the water curtain to a water tank at the bottom of the spray booth (3).
5. The fresh air supply system of the spraying production line according to claim 4, characterized in that A first anemometer (39) is provided inside the branch pipeline.
6. The fresh air supply system of the spraying production line according to claim 1, characterized in that, The automatic dust removal room (4) is provided with a make-up air inlet (41) and a first exhaust air outlet (42). The make-up air inlet (41) is connected to the air outlet (33) of the fresh air cabinet (1), and the first exhaust air outlet (42) communicates with the outside.
7. The fresh air supply system of the spraying production line according to claim 1, wherein Multiple groups of second exhaust air outlets (61) are opened at the top of the UV room (6), and the second exhaust air outlets (61) communicate with the outside.
8. The fresh air supply system of the spraying production line according to claim 1, characterized in that The fresh air cabinet (1) includes a fresh air make-up fan (11), a three-stage filter bag (12), and a primary filter cotton (13); The three-stage filter bag (12) is composed of a first filter bag (121), a second filter bag (122), and a third filter bag (123) connected in sequence and is located between the fresh air make-up fan (11) and the primary filter cotton (13).
9. The fresh air supply system for the spraying production line according to claim 8, wherein, A differential pressure sensor (9) is provided at each of the first filter bag (121), the second filter bag (122) and the third filter bag (123), and a second anemometer (10) is provided at the outlet of the fresh air make-up fan (11).