Circulating air system of automatic spray booth

Abstract

The utility model relates to the technical field of automatic spray booth air supply and exhaust design, in particular to an automatic spray booth circulating air system which comprises a main body mechanism, the main body mechanism comprises a spray booth main chamber and a drying main chamber, a waste air processing mechanism is arranged at the top of the drying main chamber, and a circulating mechanism is arranged at the top of the spray booth main chamber. The circulating mechanism comprises a circulating fan, and an air outlet of the circulating fan fixedly communicates with a circular pipe. By arranging the circulating mechanism, the device can reduce the air volume of a traditional exhaust fan, so that the system power consumption is reduced, the circulating fan is used as an exhaust fan and an air feeder at the same time, air in the paint spraying main chamber and the drying main chamber can be recycled, and the energy consumption is reduced. And exhausted air of the paint spraying main chamber is filtered and then returns to the top to supplement air for the paint spraying chamber, so that the energy consumption of the system is greatly reduced, meanwhile, the paint spraying requirement for workpieces which are not particularly high in surface cleanliness and small in size is met, and the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic spray painting room air supply and exhaust design, in particular to an automatic spray painting room circulating air system. Background Art

[0002] For paint spraying rooms, full-section air supply and exhaust are generally used, and then all exhaust air is treated by exhaust gas treatment equipment before reaching emission standards. Since the paint spraying room must ensure a balance between supply and exhaust air volume, and the VOC concentration in the paint spraying room must be lower than the explosion limit of 25%, the supply and exhaust air must be consistent, and the exhaust gas treatment must also be designed according to the maximum exhaust air volume. This type of treatment method has high costs and operating power consumption. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides an automatic paint room circulating air system, which has the advantages of low system power consumption and can meet the painting needs of workpieces with relatively high surface cleanliness and small size, and solves the problem that exhaust gas treatment must be designed according to the maximum exhaust volume, and such treatment methods have high costs and operating power consumption.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A circulating air system for an automatic paint spraying room comprises a main body mechanism, wherein the main body mechanism comprises a paint spraying main room and a drying main room, a waste air treatment mechanism is arranged on the top of the drying main room, a circulating mechanism is arranged on the top of the paint spraying main room, the circulating mechanism comprises a circulating fan, an air outlet of the circulating fan is fixedly connected with a circular tube, one end of the circular tube is fixedly connected with an L-shaped connecting tube, one end of the L-shaped connecting tube is connected with the paint spraying main room, one side of the L-shaped connecting tube is fixedly connected with a connecting tube a, an air inlet of the circulating fan is fixedly connected with a connecting tube b, one side of the connecting tube b is fixedly connected with an air inlet pipe, and one side of the L-shaped connecting tube is provided with a filter component for filtering air.

[0006] Preferably, one end of the connecting pipe b is connected to the main drying chamber, an air valve a is installed at one end of the L-shaped connecting pipe close to the main painting chamber, an air valve b is installed at the connection between the connecting pipe a and the L-shaped connecting pipe, an air valve c is installed at the connection between the connecting pipe b and the main drying chamber, an air valve d is installed at the connection between the connecting pipe b and the air inlet pipe, and one end of the air inlet pipe is connected to the external fresh air.

[0007] Preferably, the filter assembly includes a connecting hole opened on the L-shaped connecting tube, two fixed plates are clamped in the connecting hole, an adsorption box is movably installed between the two fixed plates, a pull plate is fixedly connected to one side of the two fixed plates, a square frame is movably installed on the top of the two fixed plates, and a plurality of heating wires are installed in the square frame.

[0008] Preferably, the waste air treatment mechanism comprises an exhaust gas fan, the air inlet of the exhaust gas fan is fixedly connected to a connecting pipe c, and the air outlet of the exhaust gas fan is fixedly connected to an outlet pipe.

[0009] Preferably, one end of the connecting pipe c is connected to the interior of the drying main chamber, and one end of the air outlet pipe is connected to an external exhaust gas treatment device.

[0010] Preferably, a sealing strip is installed at the connection gap between the pull plate and the L-shaped connecting pipe.

[0011] By means of the above technical solution, the utility model provides an automatic spray booth circulating air system, which has at least the following beneficial effects:

[0012] 1. The utility model sets a circulation mechanism so that the device can reduce the air volume of the traditional exhaust fan, thereby reducing the power consumption of the system. By using the circulation fan as an exhaust fan and a supply fan at the same time, the air in the main painting room and the main drying room can be recycled. The exhaust air in the main painting room is filtered and then returned to the top to replenish the air in the painting room, which greatly reduces the energy consumption of the system. At the same time, it is suitable for painting workpieces with small size and low surface cleanliness requirements, thereby improving the applicability of the device.

[0013] 2. The utility model sets a filter assembly so that the device can filter and heat the exhausted air. The two fixed plates and the pull plate can drive the adsorption box and the L-shaped connecting pipe to be easily separated through the connecting hole, so as to facilitate the timely replacement of the activated carbon in the adsorption box, thereby ensuring the filtering effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the waste air treatment mechanism of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the circulation mechanism of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the filter assembly of the utility model.

[0019] Reference numerals:

[0020] 1. Main body; 101. Main painting chamber; 102. Main drying chamber; 2. Waste air treatment mechanism; 201. Connecting pipe c; 202. Exhaust fan; 203. Exhaust pipe; 3. Circulation mechanism; 301. L-shaped connecting pipe; 302. Connecting pipe a; 303. Air valve a; 304. Air valve b; 305. Filter assembly; 3051. Fixed plate; 3052. Pull plate; 3053. Adsorption box; 3054. Heating wire; 306. Circulation fan; 307. Connecting pipe b; 308. Air inlet pipe; 309. Air valve c; 310. Air valve d. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Since the paint spraying room must ensure a balance between the supply and exhaust air volumes, and the VOC concentration in the paint spraying room must be lower than the explosion limit of 25%, the supply and exhaust air volumes must be consistent. The waste gas treatment process in the prior art is usually designed according to the maximum exhaust air volume, which greatly increases the supply and exhaust air volumes, resulting in a large cost and operating power consumption of the system. The following describes an automatic paint spraying room circulating air system provided by some embodiments of the utility model in conjunction with the accompanying drawings.

[0023] Embodiment 1:

[0024] In order to solve the problem that the air supply and exhaust must be consistent in the prior art, the exhaust gas treatment must also be designed according to the maximum exhaust volume, resulting in high cost and operating power consumption of such treatment methods, combined with Figure 1 and Figure 2 as well as Figure 3 As shown, this embodiment proposes an automatic paint spray booth circulating air system, which has the advantage of reducing system power consumption. The automatic paint spray booth circulating air system uses a main mechanism 1 to separate the paint spraying main chamber 101 and the drying main chamber 102 of the workpiece, and is provided with a waste air treatment mechanism 2 on the drying main chamber 102, which has an air volume far less than that of a traditional exhaust fan and reduces consumption. In addition, a circulation mechanism 3 is provided on the top of the paint spraying main chamber 101, which allows the exhaust air of the automatic paint spray booth to return to the top after filtering to replenish the air for the paint spray booth, so that the air can be filtered and recycled inside the system, thereby greatly reducing the energy consumption of the system.

[0025] Since the spray booth in the prior art needs to ensure that the air supply volume and exhaust volume are consistent, the exhaust gas treatment is also set according to the maximum exhaust volume, which results in a large treatment cost and operating power consumption of the device. In order to reduce the overall power consumption of the system, a circulation mechanism 3 that can effectively reduce energy consumption is proposed. The circulation mechanism 3 includes a circulation fan 306. The air outlet of the circulation fan 306 is fixedly connected to a circular pipe. One end of the circular pipe is fixedly connected to an L-shaped connecting pipe 301. One end of the L-shaped connecting pipe 301 is connected to the main spray painting chamber 101. One side of the L-shaped connecting pipe 301 is fixedly connected to a connecting pipe a302. The air inlet of the circulation fan 306 is fixedly connected to a connecting pipe b307. The connecting pipe b307 One side is fixedly connected with an air inlet pipe 308, and one side of the L-shaped connecting pipe 301 is provided with a filter assembly 305 for filtering air. One end of the air inlet pipe 308 is connected to the external fresh air, and the air outlet of the circulating fan 306 can be connected to the L-shaped connecting pipe 301 and one end of the connecting pipe a302 through the circular pipe, so that the circulating fan 306 can supply air to the main painting chamber 101 and the main drying chamber 102. The air inlet pipe 308 allows the device to first be connected to the external fresh air source, and the connecting pipe b307 allows the waste air in the main drying chamber 102 to be filtered and heated, so that the circulating fan 306 can be used as an exhaust fan and a supply fan at the same time, which greatly reduces the energy loss of the system.

[0026] One end of the connecting pipe b307 is connected with the main drying chamber 102, and an air valve a303 is installed at one end of the L-shaped connecting pipe 301 close to the main paint spraying chamber 101, an air valve b304 is installed at the connection between the connecting pipe a302 and the L-shaped connecting pipe 301, an air valve c309 is installed at the connection between the connecting pipe b307 and the main drying chamber 102, and an air valve d310 is installed at the connection between the connecting pipe b307 and the air inlet pipe 308. When the system needs to perform paint spraying operation, the air valve a303 and the air valve d310 are opened, and the air valve b304 and the air valve c309 are kept closed, so that fresh air enters the paint spraying room after filtering and heating. When the system needs to perform drying operation, the air valve b304 and the air valve c309 are opened, and the air valve a303 and the air valve d310 are kept closed, so that the air in the drying chamber is circulated and filtered, saving space and reducing equipment investment.

[0027] Embodiment 2:

[0028] On the basis of Example 1, the technical solution proposed in Example 1 is used to solve the problem that the waste gas treatment in the prior art must be designed according to the maximum exhaust volume, and the cost and operating power consumption of such treatment method are relatively high. However, when filtering the drying room and the external air source, the activated carbon will lose its adsorption effect after long-term use. If it cannot be easily dismantled and replaced, it will affect the working efficiency of the system.

[0029] Since the activated carbon will lose its activity after long-term use, it is unable to filter the exhaust air. In order to replace the activated carbon in the device in time, a filter assembly 305 that can be easily disassembled is provided. Figure 1 and Figure 4 As shown, the filter assembly 305 includes a connecting hole opened on the L-shaped connecting pipe 301, two fixed plates 3051 are clamped in the connecting hole, an adsorption box 3053 is movably installed between the two fixed plates 3051, a pull plate 3052 is fixedly connected to one side of the two fixed plates 3051, a square frame is movably installed on the top of the two fixed plates 3051, a plurality of heating wires 3054 are installed in the square frame, and a sealing strip is installed at the connecting gap between the pull plate 3052 and the L-shaped connecting pipe 301. The heating wire 3054 can improve the drying efficiency, and the adsorption box 3053 can be easily separated from the L-shaped connecting pipe 301 through the two fixed plates 3051 and the pull plate 3052. When the activated carbon is inactivated, the adsorption box 3053 can be disassembled and replaced by pulling the pull plate 3052, thereby ensuring the working efficiency of the device.

[0030] Since traditional exhaust gas treatment is set according to the maximum exhaust volume, it causes unnecessary losses in the system. Therefore, a waste gas treatment mechanism 2 that can effectively reduce the internal air volume is needed. The waste air treatment mechanism 2 includes an exhaust gas fan 202. The air inlet of the exhaust gas fan 202 is fixedly connected to a connecting pipe c201, and the air outlet of the exhaust gas fan 202 is fixedly connected to an outlet pipe 203. One end of the connecting pipe c201 is connected to the interior of the drying main chamber 102, and one end of the outlet pipe 203 is connected to an external exhaust gas treatment device. The exhaust gas fan 202 makes the internal air volume of the system much smaller than that of the traditional exhaust fan, and the exhaust gas can be promptly processed by the external exhaust gas treatment device through the outlet pipe 203.

[0031] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic spray painting room circulating air system, comprising a main body mechanism (1), wherein the main body mechanism (1) comprises a spray painting main chamber (101) and a drying main chamber (102), characterized in that: The top of the main drying chamber (102) is provided with a waste air treatment mechanism (2), and the top of the main painting chamber (101) is provided with a circulation mechanism (3); The circulation mechanism (3) comprises a circulation fan (306); an air outlet of the circulation fan (306) is fixedly connected to a circular tube; one end of the circular tube is fixedly connected to an L-shaped connecting tube (301); one end of the L-shaped connecting tube (301) is connected to a main spray painting chamber (101); one side of the L-shaped connecting tube (301) is fixedly connected to a connecting tube a (302); an air inlet of the circulation fan (306) is fixedly connected to a connecting tube b (307); one side of the connecting tube b (307) is fixedly connected to an air inlet pipe (308); and a filter assembly (305) for filtering air is provided on one side of the L-shaped connecting tube (301).

2. The automatic spray booth circulating air system according to claim 1, characterized in that: One end of the connecting pipe b (307) is connected to the drying main chamber (102); an air valve a (303) is installed at one end of the L-shaped connecting pipe (301) close to the painting main chamber (101); an air valve b (304) is installed at the connection between the connecting pipe a (302) and the L-shaped connecting pipe (301); an air valve c (309) is installed at the connection between the connecting pipe b (307) and the drying main chamber (102); an air valve d (310) is installed at the connection between the connecting pipe b and the air inlet pipe (308); and one end of the air inlet pipe (308) is connected to external fresh air.

3. The automatic spray booth circulating air system according to claim 2 is characterized in that: The filter assembly (305) comprises a connection hole provided on an L-shaped connecting pipe (301), two fixed plates (3051) being clamped in the connection hole, an adsorption box (3053) being movably installed between the two fixed plates (3051), a pull plate (3052) being fixedly connected to one side of the two fixed plates (3051), a square frame being movably installed on the top of the two fixed plates (3051), and a plurality of electric heating wires (3054) being installed in the square frame.

4. The automatic spray booth circulating air system according to claim 3 is characterized by: The waste air treatment mechanism (2) comprises an exhaust gas fan (202), the air inlet of the exhaust gas fan (202) is fixedly connected to a connecting pipe c (201), and the air outlet of the exhaust gas fan (202) is fixedly connected to an outlet pipe (203).

5. The automatic spray booth circulating air system according to claim 4 is characterized in that: One end of the connecting pipe c (201) is connected to the interior of the drying main chamber (102), and one end of the air outlet pipe (203) is connected to an external waste gas treatment device.

6. The automatic spray booth circulating air system according to claim 3 is characterized by: A sealing strip is installed at the connection gap between the pull plate (3052) and the L-shaped connecting pipe (301).

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