Paint spray room

Abstract

The utility model belongs to the field of coating technology, and particularly relates to a spraying room including a spraying room, wherein a first air inlet and a second air inlet are arranged on the top of the spraying room, a water tank for containing cleaning liquid is arranged on the bottom, an exhaust passage is arranged above one side of the water tank, and a spray gun for spraying paint mist is arranged above the other side; an air duct is connected below the first air inlet, an air outlet of the air duct is located above the spray gun away from the exhaust passage side and obliquely points downward to the inlet of the exhaust passage, and the second air inlet is arranged between the exhaust passage and the first air inlet, and the second air inlet is arranged facing the upper opening of the water tank. The downward exhaust of the second air inlet can force the gas in the upper part of the spraying room to flow downward, and the air curtain formed by the exhaust of the pipe mouth of the air duct can block the paint mist from diffusing upward, and guide the gas in the lower part of the spraying room to flow to the inlet of the exhaust passage, so that there is no airflow dead angle in the spraying room, and the paint mist capture efficiency is improved while achieving a comprehensive and sufficient ventilation effect in the spraying room.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating, in particular to a paint spraying room. Background Art

[0002] In the process of processing the paint layer on the surface of the cookware, the spray gun sprays paint mist downward from the top of the cookware to obtain the paint layer on the inner surface of the cookware, and sprays paint mist upward from the bottom of the cookware to obtain the paint layer on the outer surface of the cookware. In this way, a large number of paint particles sprayed by the spray gun that cannot reach the surface of the cookware will diffuse and pollute the air in the entire paint spray room. Directly discharging the air in the paint spray room not only does not meet environmental protection standards, but also easily causes blockage of related equipment and pipelines, thereby affecting production continuity.

[0003] Chinese patent CN220048679U discloses a paint spraying room with paint residue capture and interception, steam-water separation, and solid-water separation functions, including a paint spraying room, a modified water storage tank, a paint spraying room water tank, a venturi structure, a paint residue separation washing tower body, a water mist separation device, a wire mesh filter, a water curtain device, an exhaust fan, an air inlet pipe for the paint spraying area, an air inlet pipe for the operation area, and an operation room in the paint spraying room. This scheme is shown in the attached figure. Figure 1 As shown in the figure, most of the gas in the spray booth can be discharged from the Venturi structure in the lower right corner. However, when it is used for processing the paint layer on the surface of pots, it is easy to form a paint layer that is difficult to clean on the floor or wall of the spray booth. In addition, the air flow dead corner at the lower left corner of the spray booth is easy to retain paint mist, polluting the working environment there. Utility Model Content

[0004] The utility model aims to provide a paint spraying room which can fully discharge the paint mist inside.

[0005] To achieve the above objectives, the technical solution adopted by the utility model is: a paint spraying room, including a paint spraying room, a first air inlet and a second air inlet are provided on the top of the paint spraying room, a water tank for containing cleaning liquid is provided on the bottom, an exhaust passage is provided above one side of the water tank, and a spray gun for spraying paint mist is provided above the other side; the first air inlet is provided on the side of the spray gun away from the exhaust passage, an air duct is connected below the first air inlet, an air outlet of the air duct is located above the spray gun away from the exhaust passage and points obliquely downward to the entrance of the exhaust passage, the second air inlet is arranged between the exhaust passage and the first air inlet, and the second air inlet is arranged facing the upper opening of the water tank.

[0006] Compared with the prior art, the utility model has the following technical effects: the downward exhaust of the second air inlet can force the gas in the upper part of the paint spray room to flow downward, the air curtain formed by the exhaust of the pipe mouth of the air duct can block the paint mist from diffusing upward, and guide the gas in the lower part of the paint spray room to flow to the entrance of the exhaust passage, so that there is no airflow dead corner in the paint spray room, and the paint mist capture efficiency is improved while achieving a comprehensive and sufficient ventilation effect in the paint spray room. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The following is a brief description of the contents and symbols in the drawings of this specification:

[0008] Figure 1 It is a schematic diagram of the prior art;

[0009] Figure 2 It is a top view of the utility model;

[0010] Figure 3 yes Figure 2 AA section diagram. DETAILED DESCRIPTION

[0011] The specific implementation of the utility model is further described in detail below through the description of embodiments in conjunction with the accompanying drawings.

[0012] A paint spraying room comprises a paint spraying room 10, wherein a first air inlet 11 and a second air inlet 12 are provided on the top of the paint spraying room 10, a water tank 13 for containing cleaning liquid is provided on the bottom, an exhaust passage 20 is provided above one side of the water tank 13, and a spray gun 15 for spraying paint mist is provided above the other side; the first air inlet 11 is provided on the side of the spray gun 15 away from the exhaust passage 20, an air duct 14 is connected below the first air inlet 11, an air outlet of the air duct 14 is located above the spray gun 15 away from the exhaust passage 20 and points obliquely downward to the entrance of the exhaust passage 20, the second air inlet 12 is arranged between the exhaust passage 20 and the first air inlet 11, and the second air inlet 12 is arranged facing the upper opening of the water tank 13.

[0013] The specific implementation is as follows Figure 3 As shown, the first air inlet 11 and the second air inlet 12 are connected to the air source, and the air outlet of the air guide 14 discharges a fast-flowing airflow obliquely pointing to the inlet of the exhaust passage 20, which, on the one hand, forms an air curtain to prevent the paint mist from diffusing upward, and on the other hand, forms a low-pressure flow channel to guide the gas and smoke above and below the air curtain to flow toward the inlet of the exhaust passage 20, which can effectively avoid the formation of an airflow dead angle below the spray gun 30 away from the exhaust passage 20. At the same time, the downward exhaust at the second air inlet 12 forms a downward-flowing airflow, forcing the airflow above the spray booth 10 to flow downward, avoiding the formation of an airflow dead angle above the spray booth 10, thereby ensuring the comprehensive, rapid and efficient discharge of paint mist.

[0014] In this embodiment, an observation room 40 is provided on the side of the paint spraying room 10 away from the exhaust passage 20, and a sealing partition 41 is provided between the paint spraying room 10 and the observation room 40 to isolate the rooms on both sides. The first air inlet 11, the air duct 14, and the cookware working position are arranged adjacent to the sealing partition 41 of the observation room, so that the staff can observe the painting operation in the observation room 40.

[0015] The spray gun 15 is located at the side of the pot working position away from the exhaust passage 20. The two spray guns 15 are arranged at intervals in the vertical direction and are respectively directed obliquely to the pot to be sprayed. Figure 3 As shown, the spray gun 15 in the upper position sprays obliquely downward, and the cleaning liquid in the water tank 13 can absorb most of the paint particles that have not reached the pot. The spray gun 15 in the lower position sprays obliquely upward, and the air curtain formed by the exhaust of the air outlet of the air duct 14 can prevent the paint particles from dispersing upward.

[0016] In order to obtain an air curtain directed toward the air inlet of the exhaust passage 20, the diameter of the air guide duct 14 is reduced to form an air outlet. Figure 3 The bottom of the first tube wall 142 of the air guide 14 away from the exhaust passage 20 extends toward the side where the exhaust passage 20 is located to form a transition wall 143. The bottom of the second tube wall 144 of the air guide 14 adjacent to the exhaust passage 20 is arranged at an interval with the end of the wall body of the transition wall 143. The interval is connected to a guide tube or a guide plate 145, and the extension direction of the tube core of the guide tube or the plate surface of the guide plate points to the exhaust passage 20.

[0017] In this embodiment, the first air inlet 11 and the second air inlet 12 are arranged adjacent to each other, so that a dead angle of airflow can be avoided between the two air inlets arranged at intervals. The boundary between the first air inlet 11 and the second air inlet 12 is located on the side of the spray gun 15 away from the exhaust passage 20, the second pipe wall 144 of the air duct 14 adjacent to the exhaust passage 20 is arranged vertically, and the first pipe wall 142 of the air duct 14 away from the exhaust passage 20 is close to the adjacent room wall of the spray booth 10, so that a dead angle of airflow can be avoided on the side of the air duct 14.

[0018] In this embodiment, the first air inlet 11 and the second air inlet 12 are connected to the same air source. To adjust the air pressure of the air inlet, the first air inlet 11 is connected to the first air inlet cabin 31, and the second air inlet 12 is connected to the second air inlet cabin 32. The first air inlet cabin 31 and the second air inlet cabin 32 are connected to the fan 34 through the air supply duct 33, respectively. The pipe opening where the air supply duct 33 is connected to the first air inlet cabin 31 or the second air inlet cabin 32 is provided with a pipe opening regulating valve. Filter elements can also be added to the first air inlet cabin 31 and the second air inlet cabin 32 to ensure the cleanliness of the air entering the spray booth 10.

[0019] As attached Figure 3As shown, the exhaust passage 20 is arranged vertically as a whole, and two guide plates 21 arranged at intervals in the vertical direction are provided on the side of the exhaust passage 20 adjacent to the spray gun 15. In other embodiments, only one guide plate 21 or more than two guide plates 21 may be provided to form the boundary of the exhaust passage 20 adjacent to the spray gun 15. The guide plate 21 includes a plate section 21a arranged vertically, and below the plate section 21a is a curved plate section 21b that is curved away from the spray gun 15. When two or more guide plates 21 are arranged, the flat plate sections 21a of each guide plate 21 are arranged in the same plane.

[0020] An overflow groove 22 is provided on the upper part of the guide plate 21 away from the spray gun 15. The groove wall of the overflow groove 22 of the guide plate 21 at the highest position is sealed and connected to the top wall of the spray booth. The overflow grooves 22 of other guide plates 21 are connected to the groove walls arranged opposite to the guide plate body with a baffle 23 extending obliquely toward the curved plate section 21b located above it, and the upper plate end of the baffle 23 is higher than the lower plate end of the adjacent curved plate section 21b. The bottom of the guide plate 21 at the lowest position is arranged at intervals with the upper opening of the water tank 13. When a guide plate 21 is set, the top of the groove wall of its overflow groove 22 arranged opposite to the guide plate body is higher than the top of the guide plate 21 and the groove wall is sealed and connected to the top wall of the spray booth, and the bottom of the guide plate 21 is arranged at intervals with the upper opening of the water tank 13.

[0021] A circulating water pipe 16 is provided beside the exhaust passage 20, one end of which is connected to the water tank 13, and the other end of which extends into the groove cavity of the guide plate overflow groove 22. A water pump 17 connected to the lower end of the circulating water pipe 16 provides power to pump the cleaning liquid in the water tank 13 upward into the overflow groove 22, and the liquid flowing out of the overflow groove 22 flows downward along the guide plate 21 to form a water curtain, which prevents the gas in the spray booth 10 from being discharged from there, and prevents the paint mist from adhering to the adjacent wall of the exhaust passage 20 to form a paint layer or coating that is difficult to clean.

[0022] A spoiler 24 is provided between the guide plate 21 and the side wall of the spray booth, that is, a spoiler 24 is provided on the flow path of the exhaust passage 20. One end of the spoiler 24 extends to the side wall of the spray booth, and the other end extends to below the overflow groove 22, so that the spoiler surface of the spoiler 24 and the notch area of ​​the overflow groove 22 have an overlapped portion in the horizontal direction, so as to prevent a large amount of gas from escaping from the connecting gaps on both sides of the spoiler 24, thereby ensuring the interception effect of the spoiler 24 on the paint mist.

Claims

1. A paint spraying room, comprising a paint spraying room (10), characterized in that: A first air inlet (11) and a second air inlet (12) are provided at the top of the spray booth (10), and a water tank (13) for containing cleaning liquid is provided at the bottom; an exhaust passage (20) is provided above one side of the water tank (13), and a spray gun (15) for spraying paint mist is provided above the other side; the first air inlet (11) is provided on the side of the spray gun (15) away from the exhaust passage (20); an air duct (14) is connected below the first air inlet (11); an air outlet of the air duct (14) is located above the spray gun (15) away from the exhaust passage (20) and points obliquely downward to the entrance of the exhaust passage (20); the second air inlet (12) is arranged between the exhaust passage (20) and the first air inlet (11), and the second air inlet (12) is arranged facing the upper opening of the water tank (13).

2. The paint spraying room according to claim 1, characterized in that: The spray gun (15) is located at the side of the pot working position away from the exhaust passage (20), and the two spray guns (15) are arranged at intervals in the vertical direction and are respectively pointed obliquely at the pot position to be sprayed.

3. The paint spraying room according to claim 1, characterized in that: The diameter of the air guide pipe (14) is reduced to form an air outlet.

4. The paint spraying room according to claim 3, characterized in that: The bottom of a first tube wall (142) of the air guide duct (14) away from the exhaust passage (20) extends toward the side where the exhaust passage (20) is located to form a transition wall (143); the bottom of a second tube wall (144) of the air guide duct (14) arranged adjacent to the exhaust passage (20) is spaced apart from the end of the wall body of the transition wall (143); the spaced apart portion is connected to a guide tube or a guide plate (145); and the extension direction of the tube core of the guide tube / the plate surface of the guide plate points toward the exhaust passage (20).

5. The paint spraying room according to claim 1, characterized in that: The exhaust passage (20) is arranged vertically as a whole. A guide plate (21) is provided on the exhaust passage (20) adjacent to the spray gun (15). The guide plate (21) includes a flat plate section (21a) arranged vertically. Below the flat plate section (21a) is a curved plate section (21b) that curves away from the spray gun (15). An overflow groove (22) is provided on the upper part of the guide plate (21) away from the spray gun (15); the top of the groove wall of the overflow groove (22) arranged opposite to the guide plate body is higher than the top of the guide plate (21) and the groove wall is sealed and connected to the top wall of the spray booth; the bottom of the guide plate (21) is arranged at a distance from the upper opening of the water tank (13); A circulating water pipe (16) is provided beside the exhaust passage (20), one end of the circulating water pipe (16) is connected to the water tank (13), and the other end extends into the groove cavity of the guide plate overflow groove (22); a water pump (17) connected to the lower end of the circulating water pipe (16) provides power to pump the cleaning liquid in the water tank (13) into the overflow groove (22), and the liquid flowing out of the overflow groove (22) flows downward along the guide of the guide plate (21) to form a water curtain.

6. The paint spraying room according to claim 5, characterized in that: Two or more guide plates (21) arranged at intervals in a vertical direction form the boundary of the exhaust passage (20), and the flat plate sections (21a) of each guide plate (21) are arranged in the same plane; the overflow groove (22) wall of the guide plate (21) at the highest position is sealedly connected to the top wall of the paint spraying room, and the overflow grooves (22) of other guide plates (21) are connected to the groove walls arranged opposite to the guide plate body with a baffle (23) extending obliquely toward the curved plate section (21b) located above it, and the upper plate end of the baffle (23) is higher than the lower plate end of the adjacent curved plate section (21b).

7. The paint spraying room according to claim 5, characterized in that: A spoiler (24) is provided between the guide plate (21) and the side wall of the paint spraying room, and one end of the spoiler (24) extends to the side wall of the paint spraying room, and the other end extends to below the overflow trough (22).

8. The paint spraying room according to claim 1, characterized in that: The first air inlet (11) and the second air inlet (12) are arranged adjacent to each other, the boundary between the first air inlet (11) and the second air inlet (12) is located on the side of the spray gun (15) away from the exhaust passage (20), the second pipe wall (144) of the air guide duct (14) adjacent to the exhaust passage (20) is arranged vertically, and the first pipe wall (142) of the air guide duct (14) away from the exhaust passage (20) is in close contact with the adjacent room wall of the spray booth (10).

9. The paint spraying room according to claim 1, characterized in that: The first air inlet (11) is connected to the first air inlet compartment (31) above, and the second air inlet (12) is connected to the second air inlet compartment (32) above. The first air inlet compartment (31) and the second air inlet compartment (32) are connected to the fan (34) via an air supply duct (33) respectively. A pipe outlet regulating valve is provided at the pipe outlet where the air supply duct (33) is connected to the first air inlet compartment (31) or the second air inlet compartment (32).

10. The paint spraying room according to claim 1, characterized in that: An observation room (40) is provided on the side of the spray painting room (10) away from the exhaust passage (20), a sealing partition (41) is provided between the spray painting room (10) and the observation room (40) to isolate the rooms on both sides, and the first air inlet (11) and the air guide duct (14) are arranged adjacent to the sealing partition (41).

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