Air circulation purification device for paint spray booth

Abstract

The utility model relates to the technical field of air purification, in particular to a paint spray booth air circulation purification device which comprises a water curtain cabinet arranged on one side in a paint spray booth, and an activated carbon box is arranged on the top of the water curtain cabinet. An inclined water curtain plate I is arranged at the top of the paint spraying room, a water storage tank is arranged at the bottom of the water curtain cabinet, the water storage tank supplies water to the high position of the water curtain plate I through a water pipe and a water pump, and the low end of the water curtain plate I is connected with a water curtain plate II in the water curtain cabinet and used for enabling water to flow to the water curtain plate II; the waste gas combustion equipment is used for catalytically combusting organic waste gas desorbed in the activated carbon box. The water curtain of the water curtain cabinet on the side face of the paint spray booth is combined with the water curtain on the top of the paint spray booth, paint mist capturing efficiency is improved, and the problem that in the prior art, paint mist is captured only through a water curtain cabinet, organic waste gas in air cannot be removed, and health of operators is seriously affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, in particular to an air circulation purification device for a paint spraying room. Background Art

[0002] The air circulation purification system of the paint spraying room is a key component to ensure the quality of painting and the safety of the working environment. The main function of this system is to remove paint mist, volatile organic compounds (VOCs) and other harmful gases generated during the painting process.

[0003] Existing air circulation purification devices rely solely on the suction force of the induced draft fan to capture paint mist, which is less effective at capturing paint mist far from the drencher booth. Capturing paint mist solely through the drencher booth fails to remove organic waste gases from the air, seriously affecting the health of operators. Therefore, we propose an air circulation purification device for paint spray booths. Utility Model Content

[0004] The purpose of the utility model is to provide an air circulation purification device for a paint spraying room, which has the advantage of combining the water curtain of the water curtain cabinet on the side of the paint spraying room with the water curtain on the top, thereby improving the efficiency of capturing paint mist and solving the problem that the existing technology only captures paint mist through the water curtain cabinet, but cannot remove organic waste gas in the air, which seriously affects the health of the operator.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an air circulation purification device for a paint spray booth, comprising a water curtain cabinet arranged on one side of the paint spray booth, an activated carbon box arranged on the top of the water curtain cabinet, the outlet of the activated carbon box connected to an induced draft fan, the outlet of the induced draft fan connected to an air duct, and the air duct extends to the other side of the paint spray booth;

[0006] The top of the spray booth is provided with an inclined water curtain plate 1, and the bottom of the water curtain cabinet is provided with a water reservoir. The water reservoir supplies water to the upper part of the water curtain plate 1 through a water pipe and a water pump. One end of the lower part of the water curtain plate 1 is connected to the water curtain plate 2 in the water curtain cabinet, so as to flow water downstream to the water curtain plate 2;

[0007] It also includes waste gas combustion equipment, which is used for catalytic combustion of organic waste gas desorbed from the activated carbon box.

[0008] Preferably, an overflow tank is provided on the top of the water curtain plate 1, and the water pump is connected to the overflow tank through a water pipe;

[0009] The first water curtain plate is evenly provided with through holes, and a water absorbing material is provided at the bottom of the first water curtain plate.

[0010] Preferably, a water receiving plate is provided at the bottom of the water curtain plate 1, and the bottom of the water receiving plate is connected to the water reservoir through a return pipe.

[0011] Preferably, an exhaust fan is provided on the side of the activated carbon box, the exhaust fan faces the side of the water curtain plate, the exhaust fan is connected to the activated carbon box through a pipe, and the pipe of the exhaust fan is located on the side of the activated carbon box inlet.

[0012] Preferably, at least one activated carbon adsorption plate is provided in the activated carbon box, a desorption air inlet pipe connected to the outside world is provided on the outlet side of the activated carbon box, and the inlet side of the activated carbon box is connected to the waste gas combustion equipment through a desorption air outlet pipe, and valves are provided on the desorption air inlet pipe and the desorption air outlet pipe.

[0013] Preferably, a heating jacket is provided on the desorption air inlet pipe, and an air pump is provided on the desorption air outlet pipe.

[0014] Preferably, the activated carbon box is provided with a temperature sensor at the desorption outlet pipe, and the inlet and outlet of the activated carbon box and the pipeline connected to the exhaust fan are all provided with valves.

[0015] Preferably, a dryer is provided at the inlet of the activated carbon box in the water curtain cabinet.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This utility model uses a water curtain installed at the top of the spray booth, combined with water curtains on the sides of the drencher cabinet, to simultaneously capture paint mist within the booth. A water reservoir at the bottom also plays a role in capturing paint mist. The tilted top drencher is fed with water via an overflow tank, allowing water from the top drencher to flow directly downstream into the drencher cabinet, achieving extensive paint mist capture. This solves the problem of existing technologies that only capture paint mist through the drencher cabinet but fail to remove organic waste gases from the air, seriously impacting operator health. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2

[0020] Figure 3 This is an enlarged schematic diagram of the overflow tank of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the activated carbon box of this utility model.

[0022] In the figure: 1. Paint spray booth; 2. Water curtain cabinet; 3. Activated carbon box; 4. Air duct; 5. Water reservoir; 6. Water curtain plate 1; 7. Water pump; 8. Water pipe; 9. Overflow tank; 10. Water receiving plate; 11. Return pipe; 12. Water curtain plate 2; 13. Induced draft fan; 14. Dryer; 15. Waste gas combustion equipment; 16. Desorption inlet pipe; 17. Desorption outlet pipe; 18. Heating jacket; 19. Air pump; 20. Exhaust fan; 21. Activated carbon adsorption plate; 22. Temperature sensor; 23. Valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 and 2 As shown, an air circulation purification device for a paint spraying room includes a water curtain cabinet 2 arranged on one side of the paint spraying room 1, an activated carbon box 3 is arranged on the top of the water curtain cabinet 2, the outlet of the activated carbon box 3 is connected to the induced draft fan 13, the outlet of the induced draft fan 13 is connected to the air duct 4, and the air duct 4 extends to the other side of the paint spraying room 1; it is used to blow the air on the left side to the water curtain plate 1 6 at the top of the paint spraying room 1, the water curtain plate 2 12 on the right side of the paint spraying room 1, or the water reservoir 5 at the bottom of the paint spraying room 1.

[0025] The top of the spray booth 1 is equipped with an inclined water curtain plate 6, and the bottom of the water curtain cabinet 2 is equipped with a water reservoir 5. When using a small water reservoir 5, it only occupies a portion of the spray booth 1. When using a large water reservoir 5, it covers the entire bottom of the spray booth 1, and a grid is installed on the floor of the spray booth 1. The water reservoir 5 supplies water to the upper part of the water curtain plate 6 through a water pipe 8 and a water pump 7. The lower end of the water curtain plate 6 is connected to the water curtain plate 2 12 in the water curtain cabinet 2, which is used to direct water downstream to the water curtain plate 2 12. The water curtain installed at the top of the spray booth 1, in conjunction with the water curtains on the sides of the water curtain cabinet 2, simultaneously captures the paint mist in the spray booth 1. The water reservoir 5 at the bottom also plays a role in capturing paint mist.

[0026] The system also includes an exhaust gas combustion device 15, which is used to catalytically combust the organic exhaust gas desorbed from the activated carbon box 3. The exhaust gas combustion device 15 can directly treat the organic exhaust gas in the activated carbon, preventing the activated carbon from becoming saturated and affecting the absorption of the exhaust gas. The exhaust gas combustion device 15 can convert harmful substances in the exhaust gas into harmless or less harmful substances through high-temperature combustion.

[0027] like Figure 3As shown, an overflow tank 9 is provided on the top of the water curtain plate 6, and the water pump 7 is connected to the overflow tank 9 through a water pipe 8; the top inclined water curtain plate 6 is supplied with water through the overflow tank 9, so that the water of the top water curtain plate 6 directly flows downstream into the water curtain plate 2 12 of the water curtain cabinet 2, thereby realizing a large range of water curtain to capture paint mist.

[0028] Water curtain plate 1 (6) is evenly distributed with through-holes, and a water-absorbing material is provided at the bottom of water curtain plate 1 (6). The purpose of providing through-holes is to allow water to flow along the bottom of water curtain plate 1 (6). The water-absorbing material can be made of fabric or sponge to absorb water, preventing or reducing water from dripping directly and instead flowing into water curtain plate 2 (12).

[0029] A water receiving plate 10 is provided at the bottom of the water curtain plate 6, and the bottom of the water receiving plate 10 is connected to the water reservoir 5 via a return pipe 11. The water receiving plate 10 is provided because the water curtain plate 6 is made of fabric and is water-permeable. When water from the overflow tank 9 flows directly into the water curtain plate 6, there may be dripping. The water receiving plate 10 can receive the water and return it to the water reservoir 5.

[0030] like Figure 4 As shown, an exhaust fan 20 is provided on the side of the activated carbon box 3, facing the side of the water curtain plate 6. The exhaust fan 20 is connected to the activated carbon box 3 through a pipe, and the pipe of the exhaust fan 20 is located on the side of the inlet of the activated carbon box 3. It is used to absorb the air passing through the water curtain plate 6 into the activated carbon box 3 for adsorption.

[0031] At least one activated carbon adsorption plate 21 is installed in the activated carbon box 3. A desorption inlet pipe 16 is installed on the outlet side of the activated carbon box 3, which is connected to the outside world. A desorption outlet pipe 17 is installed on the inlet side of the activated carbon box 3, which is connected to the exhaust gas combustion equipment 15. Valves 23 are installed on both the desorption inlet pipe 16 and the desorption outlet pipe 17. The desorption inlet pipe 16 and the desorption outlet pipe 17 transport the desorbed gas to the exhaust gas combustion equipment 15 for combustion. The valve 23 allows the desorption pipe to be closed during the adsorption process. During the desorption process, the inlet and outlet of the activated carbon box 3, as well as the pipe connected to the exhaust fan 20, can be closed.

[0032] A heating jacket 18 is provided on the desorption inlet pipe 16, and an air pump 19 is provided on the desorption outlet pipe 17. The heating jacket 18 increases the air temperature entering the desorption inlet pipe 16, allowing high-temperature air to desorb from the activated carbon adsorption plate 21. The air pump 19 then drives the air flow and pumps it into the exhaust gas combustion equipment 15.

[0033] The activated carbon box 3 is equipped with a temperature sensor 22 located at the desorption outlet pipe 17, and valves 23 are installed at the inlet and outlet of the activated carbon box 3 and the pipe connected to the exhaust fan 20. The temperature sensor 22 monitors the temperature inside the activated carbon box 3 to prevent safety accidents caused by excessive temperature and ensure that the gas reaches the desorption temperature of the activated carbon adsorption plate 21.

[0034] A dryer 14 is installed at the inlet of the activated carbon box 3 within the water curtain cabinet 2. This reduces the humidity of the gas entering the activated carbon box 3, facilitating adsorption processing within the activated carbon box 3. A pipe for an exhaust fan 20 can also be installed below the dryer 14 to dry the gas drawn into the activated carbon box 3 by the exhaust fan 20.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paint spray booth air circulation purification device, comprising a water curtain cabinet (2) arranged on one side of the paint spray booth (1), an activated carbon box (3) arranged on the top of the water curtain cabinet (2), an outlet of the activated carbon box (3) connected to an induced draft fan (13), an outlet of the induced draft fan (13) connected to an air duct (4), and the air duct (4) extends to the other side of the paint spray booth (1); characterized in that: The top of the spray paint room (1) is provided with an inclined water curtain plate (6), and the bottom of the water curtain cabinet (2) is provided with a water reservoir (5). The water reservoir (5) supplies water to the upper part of the water curtain plate (6) through a water pipe (8) and a water pump (7). One end of the lower part of the water curtain plate (6) is connected to the water curtain plate (12) in the water curtain cabinet (2) for flowing water downstream to the water curtain plate (12). It also includes a waste gas combustion device (15), which is used for catalytic combustion of the organic waste gas desorbed from the activated carbon box (3).

2. The air circulation purification device for a paint spraying room according to claim 1, characterized in that: An overflow tank (9) is provided on the top of the water curtain plate (6), and the water pump (7) is connected to the overflow tank (9) through a water pipe (8); The water curtain plate (6) is evenly provided with through holes, and a water-absorbing material is provided at the bottom of the water curtain plate (6).

3. The air circulation purification device for a paint spraying room according to claim 2, characterized in that: A water receiving plate (10) is provided at the bottom of the water curtain plate 1 (6), and the bottom of the water receiving plate (10) is connected to the water reservoir (5) through a return pipe (11).

4. The air circulation purification device for a paint spraying room according to claim 1, characterized in that: An exhaust fan (20) is provided on the side of the activated carbon box (3), and the exhaust fan (20) faces the side of the water curtain plate (6). The exhaust fan (20) is connected to the activated carbon box (3) through a pipeline, and the pipeline of the exhaust fan (20) is located on the side of the inlet of the activated carbon box (3).

5. The air circulation purification device for a paint spraying room according to claim 4, characterized in that: At least one activated carbon adsorption plate (21) is provided in the activated carbon box (3), a desorption air inlet pipe (16) connected to the outside is provided on the outlet side of the activated carbon box (3), and an inlet side of the activated carbon box (3) is connected to the waste gas combustion equipment (15) via a desorption air outlet pipe (17), and valves (23) are provided on both the desorption air inlet pipe (16) and the desorption air outlet pipe (17).

6. The air circulation purification device for a paint spraying room according to claim 5, characterized in that: The desorption air inlet pipe (16) is provided with a heating jacket (18), and the desorption air outlet pipe (17) is provided with an air pump (19).

7. The air circulation purification device for a paint spraying room according to claim 6, characterized in that: The activated carbon box (3) is provided with a temperature sensor (22) at the desorption outlet pipe (17), and the inlet and outlet of the activated carbon box (3) and the pipeline connected to the exhaust fan (20) are all provided with valves (23).

8. The air circulation purification device for a paint spraying room according to claim 1, characterized in that: A dryer (14) is provided in the water curtain cabinet (2) at the inlet of the activated carbon box (3).

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