Water circulation device for spraying scene

Abstract

The utility model discloses a water circulation device for a spraying scene, which comprises a fuming cupboard, a water tank with an annular structure is arranged at the bottom end of the fuming cupboard, a return pipe is led out of one side wall of the water tank, and one end of the return pipe is connected with an oil-water separator. The fuming cupboard has the advantages that the fuming cupboard is used in cooperation with a water circulation system, the fuming cupboard body plays a role in preventing atomized paint from diffusing, the water curtains are distributed on the periphery of the inner wall of the fuming cupboard, redundant atomized paint can be taken away by the circulating water curtains, an air suction hood on the top of the fuming cupboard does not directly align to the lower operation space, and therefore the fuming cupboard is not prone to being damaged. Waste caused by direct extraction of atomized paint can be avoided; the paint pumped away through the ventilation opening and the paint taken away by the water curtain can enter the oil-water separator and the water circulation vacuum pump, secondary volatilization of the paint can be effectively avoided, meanwhile, water and the paint can be separated through the oil-water separator, water can enter the oil-water separator again, the paint can be safely treated, and the use effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to spraying device technical field, concretely relates to a kind of water circulation device for spraying scene. BACKGROUND

[0002] Spraying is a coating method that disperses into uniform and fine mist droplets by means of pressure or centrifugal force through spray gun or disc atomizer, and is applied to the surface of the coated object. It can be divided into air spraying, airless spraying, electrostatic spraying and various derived ways of the above basic spraying forms, such as high-flow low-pressure atomizing spraying, thermal spraying, automatic spraying, multi-group spraying, etc.

[0003] Most of the paint used in existing spraying is volatile solvent, so in paint spraying and spraying workshop, fume hood and water curtain are often used to absorb and discharge the excess paint generated by spray gun atomization, to reduce the harm to the operator's body, but this traditional ventilation facility either the wind is too big to affect the film-forming effect of atomized paint and cause waste, or the wind is too small to have no emptying effect, and part of the paint entering the water curtain is secondarily volatilized to cause harm to the body of workshop personnel, and part of it is discharged into sewer to cause environmental pollution, so there is an urgent need for a water circulation device for spraying scene to solve the above problems. SUMMARY

[0004] (I) Technical problem to be solved

[0005] The technical problem to be solved by the utility model is to provide a water circulation device for spraying scene which classifies and recycles paint and water by combining fume hood with water circulation system, avoids waste, has good use effect and high use performance, in view of the current status of the prior art.

[0006] (II) Technical scheme

[0007] The utility model realizes by following technical scheme: the utility model provides a kind of water circulation device for spraying scene, including fume hood, the water tank of annular structure is established at the bottom end of fume hood, the return pipe is led out on the side wall of water tank, the oil-water separator is connected at one end of return pipe, the water circulation vacuum pump is connected on the water discharge port of oil-water separator, the output port of water circulation vacuum pump is connected with the conveying pipe, the annular structure's recessed cavity is established in the position corresponding to water tank on the top end of fume hood, the spray pipe is laid in the recessed cavity, multiple groups of spray holes are arrayed on the spray pipe, the exhaust fan is installed on the top end of fume hood, the air duct is connected on the exhaust fan, the air suction cover of back-shaped structure is connected at the bottom end of air duct, the gas conveying pipe is connected at the other end of exhaust fan.

[0008] Further, the water tank is formed on the fume hood, and the return pipe, the water tank and the oil-water separator are connected by threads.

[0009] By adopting the technical scheme, water forming a water curtain enters the oil-water separator through the water tank and the return pipe.

[0010] Further, the water circulation vacuum pump is connected with the oil-water separator through a pipeline, and the conveying pipe is fixedly connected with the water circulation vacuum pump and the spray pipe.

[0011] By adopting the technical scheme, the separated water is conveyed to the spray pipe through the conveying pipe under the action of the water circulation vacuum pump and is sprayed out through the spray hole, so that a circulating water curtain is formed in the fume hood, and then the excess atomized paint is taken away.

[0012] Further, the recess is formed on the fume hood, and the spray pipe is fixed in the recess through a pipe clamp.

[0013] By adopting the technical scheme, the recess provides a mounting position for the spray pipe.

[0014] Further, the exhaust fan is fixed on the upper end of the fume hood through bolts, and the air guide pipe is fixed on the exhaust fan through screws.

[0015] By adopting the technical scheme, the suction force generated by the exhaust fan enters the air suction cover through the air guide pipe, and then the escaped paint is extracted.

[0016] Further, the air suction cover is connected with the air guide pipe through threads, and the air suction cover has a U-shaped structure.

[0017] By adopting the technical scheme, the air suction cover has a U-shaped structure and can be arranged in a staggered manner with the operation space, so that the atomized paint is not directly extracted and wasted.

[0018] Further, the gas conveying pipe is fixedly connected with the exhaust fan and the oil-water separator.

[0019] By adopting the technical scheme, the extracted atomized paint also enters the oil-water separator through the gas conveying pipe and is mixed with the return water for oil-water separation.

[0020] (Three) beneficial effects

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] In order to solve the problem that most of the paint used for spraying is volatile solvent, so in the paint spraying workshop, the fume hood and the water curtain are used to absorb and discharge the excess paint generated by the atomization of the spray gun, so as to reduce the harm to the operator's body, but the traditional ventilation facility is either too windy to affect the film forming effect of the atomized paint and cause waste, or too small to play the emptying effect, and part of the paint entering the water curtain is re-volatilized to cause harm to the body of the workshop personnel, and part of the paint is discharged into the sewer to cause environmental pollution, the utility model discloses a fume hood and a water circulation system are matched, the fume hood main body plays the role of preventing the atomized paint from spreading, and the water curtain is arranged on the inner wall of the fume hood, the circulating water curtain can take away the excess atomized paint, the air suction cover of the fume hood is not directly aimed at the operation space below, so that the atomized paint is not directly sucked away to cause waste, the paint sucked away by the ventilation opening and the paint taken away by the water curtain can enter the oil-water separator and the water circulation vacuum pump, so that the re-volatilization of the paint is effectively avoided, the oil-water separator can separate the water and the paint, the water can be reused, and the paint can be safely treated, and the use effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a structure schematic view of the water circulation device for the spraying scene according to the utility model;

[0024] Fig. 2 is a bottom view of the top end of the fume hood in the water circulation device for the spraying scene according to the utility model;

[0025] Fig. 3 is a structure schematic view of the spray pipe in the water circulation device for the spraying scene according to the utility model.

[0026] The signs in the drawings are explained as follows:

[0027] 1, fume hood; 2, water tank; 3, backflow pipe; 4, oil-water separator; 5, water circulation vacuum pump; 6, conveying pipe; 7, air suction machine; 8, air duct; 9, gas conveying pipe; 10, air suction cover; 11, concave cavity; 12, spray hole; 13, spray pipe. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0029] As Figs. 1-3As shown, the water circulating device for spraying scene in the embodiment comprises a fume hood 1, the bottom end of the fume hood 1 is provided with a water tank 2 with annular structure, a reflux pipe 3 is led out on one side wall of the water tank 2, one end of the reflux pipe 3 is connected with an oil-water separator 4, water forming a water curtain enters the oil-water separator 4 through the water tank 2 and the reflux pipe 3 for oil-water separation, a water circulating vacuum pump 5 is connected on the water discharge port of the oil-water separator 4, a conveying pipe 6 is connected on the output port of the water circulating vacuum pump 5, the separated water is conveyed to a spray pipe 13 through the conveying pipe 6 under the action of the water circulating vacuum pump 5 and sprayed out through spray holes 12, a circulating water curtain can be formed in the fume hood 1, thereby taking away the excess atomized paint, a concave cavity 11 with annular structure is provided on the position corresponding to the water tank 2 on the top end of the fume hood 1, the concave cavity 11 provides a mounting position for the spray pipe 13, the spray pipe 13 is laid in the concave cavity 11, a plurality of groups of spray holes 12 are arrayed on the spray pipe 13, an exhaust fan 7 is mounted on the top end of the fume hood 1, an air guide pipe 8 is connected on the exhaust fan 7, an air suction cover 10 with back-shaped structure is connected on the bottom end of the air guide pipe 8, the suction force generated by the exhaust fan 7 enters the air suction cover 10 through the air guide pipe 8, thereby extracting the escaped paint, a gas conveying pipe 9 is connected on the other end of the exhaust fan 7, the extracted atomized paint also enters the oil-water separator 4 through the gas conveying pipe 9 and is mixed with the reflux water for oil-water separation.

[0030] As shown in the figure, Figs. 1-3 In the embodiment, the water tank 2 is formed on the fume hood 1, the reflux pipe 3 and the water tank 2 and the oil-water separator 4 are all connected through threads, the water circulating vacuum pump 5 and the oil-water separator 4 are connected through pipes, the conveying pipe 6 and the water circulating vacuum pump 5 and the spray pipe 13 are all fixedly connected, the concave cavity 11 is formed on the fume hood 1, and the spray pipe 13 is fixed in the concave cavity 11 through a pipe clamp.

[0031] As shown in the figure, Figs. 1-3 In the embodiment, the exhaust fan 7 is fixed on the upper end of the fume hood 1 through bolts, the air guide pipe 8 is fixed on the exhaust fan 7 through screws, the air suction cover 10 is connected with the air guide pipe 8 through threads, the air suction cover 10 is in back-shaped structure, and the gas conveying pipe 9 is fixedly connected with the exhaust fan 7 and the oil-water separator 4.

[0032] The specific implementation process of the embodiment is as follows: in the spraying process, water is sprayed out through the spray holes 12 on the spray pipe 13 to form a water curtain to carry away the excess atomized paint, the water forming the water curtain enters the oil-water separator 4 through the water tank 2 and the return pipe 3 for oil-water separation, and the exhaust fan 7 of the fume hood 1 part extracts the escaped paint through the exhaust pipe and the air suction hood 10, and since the air suction hood 10 is in a back-shaped structure and is not directly aligned with the lower operating space, the atomized paint can be avoided from being directly extracted and wasted, the atomized paint extracted through the air conveying pipe 9 also enters the oil-water separator 4 to mix with the return water, which can effectively avoid the secondary volatilization of the paint, and the oil-water separator 4 can separate the water and the paint, the water circulates under the action of the water circulation vacuum pump 5, and the paint can be safely treated, and the use effect is good.

[0033] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water recycling device for a spray scene, characterized by: The utility model relates to a fume hood, including fume hood (1), fume hood (1) bottom end is equipped with annular structure's water tank (2), the water tank (2) one side wall leads out return pipe (3), return pipe (3) one end is connected with oil water separator (4), oil water separator (4) water discharge port is connected with water circulation vacuum pump (5), water circulation vacuum pump (5) output port is connected with delivery pipe (6), fume hood (1) top end with the water tank (2) corresponding position is equipped with annular structure's recess cavity (11), recess cavity (11) is laid with shower pipe (13), shower pipe (13) is equipped with multiple groups of spray hole (12) on array, fume hood (1) top end is installed with exhaust fan (7), exhaust fan (7) is connected with air duct (8), air duct (8) bottom end is connected with back -to -back structure's air suction cover (10), exhaust fan (7) other end is connected with gas delivery pipe (9).

2. A water recycling device for a spray scene according to claim 1, characterized in that: The water tank (2) is formed on the fume hood (1), the return pipe (3), the water tank (2) and the oil water separator (4) are all connected by threads.

3. The water recycling device for a spray scene according to claim 1, characterized by: The water circulation vacuum pump (5) is connected with the oil water separator (4) by pipeline, the delivery pipe (6) is fixedly connected with the water circulation vacuum pump (5) and the shower pipe (13).

4. A water recycling device for a spray scene according to claim 3, characterized in that: The recess cavity (11) is formed on the fume hood (1), and the shower pipe (13) is fixed in the recess cavity (11) by a pipe clamp.

5. A water recycling device for a spray scene according to claim 4, characterised in that: The exhaust fan (7) is fixed on the upper end of the fume hood (1) by bolts, and the air duct (8) is fixed on the exhaust fan (7) by screws.

6. A water recycling device for a spray scene according to claim 5, wherein: The air suction cover (10) is connected with the air duct (8) by threads, and the air suction cover (10) has a back-to-back structure.

7. A water recycling device for a spray scene according to claim 6, characterized in that: The gas delivery pipe (9) is fixedly connected with the exhaust fan (7) and the oil water separator (4).

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