An internal circulation spray booth

Abstract

This utility model discloses an internal circulation spray booth, belonging to the technical field of spray booths. It includes an operating room with air vents on the top of both outer walls. A circulation mechanism includes an exhaust chamber located at the bottom of the operating room, with a duct connected to one side of the exhaust chamber. One end of the duct is connected to a corresponding air vent. Air is drawn in from the exhaust chamber and blown out from the air vent, completing the internal air circulation within the operating room. A cleaning mechanism includes a washing chamber and a deodorizing chamber located outside the operating room and connected to the duct. The washing chamber removes small paint droplets from the circulating air, and the deodorizing chamber removes odors from the circulating air. In this utility model, the internal air circulation is achieved through the circulation mechanism, while the cleaning mechanism continuously cleans the circulating air, preventing pollution of the external air while maintaining clean air inside the operating room.

Description

Technical Field

[0001] This utility model belongs to the field of spray booth technology, and in particular relates to an internal circulation spray booth. Background Technology

[0002] Spray painting involves atomizing liquid paint using spraying equipment and then uniformly adhering it to the surface of an object to form a paint film with protective and decorative functions. Spray painting is widely used in industrial manufacturing, furniture production, automobile repair and other fields. The core value of spray painting lies in achieving a balance between surface protection and aesthetics through different process parameters. It is relatively low in cost and highly adaptable.

[0003] Traditional spray booths either directly exhaust polluted air into the outdoor atmosphere using high-powered fans, releasing high concentrations of paint particles into the external environment and causing serious air pollution, or they simply filter the exhaust air and then send it back to the operating room. The unpurified air circulates inside the operating room, causing the concentration of harmful substances to accumulate and increase continuously in the enclosed space. This not only seriously pollutes the internal environment of the operating room but also affects the quality of the subsequent painted surfaces. Utility Model Content

[0004] The purpose of this invention is to solve the problems of air pollution caused by direct external discharge after painting and the inability of simple circulation to fully purify the air, and to propose an internal circulation type spray booth.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an internal circulation spray booth, including an operating room, with air inlets on the top of both outer walls of the operating room, and a circulation mechanism, which includes an exhaust chamber located at the bottom of the operating room. One side of the exhaust chamber is connected to an air duct, and one end of the air duct is connected to an air inlet at a corresponding position. Air is drawn in from the exhaust chamber and blown out from the air inlet, completing the internal air circulation of the operating room. A cleaning mechanism includes a washing chamber and a deodorizing chamber located outside the operating room and connected to the air duct. The washing chamber washes away small paint droplets in the circulating air, and the deodorizing chamber removes odors from the circulating air.

[0006] Preferably, the bottom of the operating room is provided with multiple ventilation slots, the exhaust chamber is connected to an installation frame, a first fan unit is installed on the top of the installation frame, and a second fan unit is fixedly installed at the bottom of the air duct by a rod. The positions of the first fan unit and the second fan unit are set to be perpendicular to each other.

[0007] Preferably, multiple air curtain machines are installed on the top of the inner walls on both sides of the operating room, and the installation area of ​​the air curtain machines is connected to the air supply outlet.

[0008] Preferably, the washing chamber is provided with filter plates at the top and bottom, the filter plates have multiple filter holes on their outer walls, and the washing chamber is provided with an atomizing tube, one end of which is connected to a water supply system.

[0009] Preferably, the deodorizing chamber is located above the washing chamber, and the deodorizing chamber contains two filter elements.

[0010] Preferably, the operating room has a main door at the opening, a side door on one side of the outer wall of the operating room, a controller on the side of the operating room with the side door, and a base at the bottom of the operating room.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by setting up a circulation mechanism, after the painting operation is completed, the air in the operating room is drawn into the exhaust chamber from the ventilation slot at the bottom of the operating room. The air is then pushed along the air duct to the air outlet at the top of the outer wall of the operating room. Finally, the air curtain blows the air into the operating room, realizing the internal circulation of air and preventing the emission of paint-containing air into the external environment, which would cause environmental pollution.

[0013] 2. In this utility model, by setting up a cleaning mechanism, when the air moves along the air duct, the small paint droplets mixed in the air are first washed away by atomized water, and then the odor molecules and residual moisture in the air are absorbed by activated carbon, so that the air is clean when it is circulated back to the operating room. This achieves the washing of the circulating air, ensures that the air in the operating room is continuously clean, and prevents the internal space of the operating room from being polluted by the circulating air. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of an internal circulation spray booth proposed in this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of an internal circulation spray booth proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the circulation mechanism structure of an internal circulation spray booth proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the cleaning mechanism of an internal circulation spray booth proposed in this utility model.

[0018] Legend: 1. Operating room; 2. Ventilation duct; 3. Air outlet; 4. Air duct; 5. Circulation mechanism; 501. Exhaust chamber; 502. Mounting frame; 503. First fan unit; 504. Second fan unit; 505. Air curtain machine; 6. Cleaning mechanism; 601. Washing chamber; 602. Filter plate; 603. Atomizing tube; 604. Water supply system; 605. Deodorizing chamber; 606. Filter element; 7. Base; 8. Front door; 9. Side door; 10. Controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 This utility model provides a technical solution: an internal circulation spray booth, including an operating room 1, with air inlets 3 on the top of both outer walls of the operating room 1, and a circulation mechanism 5. The circulation mechanism 5 includes an exhaust chamber 501 located at the bottom of the operating room 1, with an air duct 4 connected to one side of the exhaust chamber 501. One end of the air duct 4 is connected to the corresponding air inlet 3. Air is drawn in from the exhaust chamber 501 and blown out from the air inlet 3, completing the internal air circulation of the operating room 1. The cleaning mechanism 6 includes a washing chamber 601 located outside the operating room 1 and connected to the air duct 4, and an odor removal chamber 605. The washing chamber 601 washes away small paint droplets in the circulating air, and the odor removal chamber 605 removes odors from the circulating air.

[0021] The bottom of the operating room 1 has multiple ventilation slots 2. The exhaust chamber 501 is connected to the mounting frame 502. The top of the mounting frame 502 is equipped with a first fan unit 503. The bottom of the air duct 4 is fixedly installed with a second fan unit 504 by a rod. The positions of the first fan unit 503 and the second fan unit 504 are set to be perpendicular to each other.

[0022] Multiple air curtain machines 505 are installed on the top of the inner walls on both sides of the operating room 1. The installation area of ​​the air curtain machine 505 is connected to the air outlet 3.

[0023] Specifically, the first fan unit 503, the second fan unit 504, and the air curtain machine 505 are all controlled to open and close by the controller 10. The controller 10 opens the first fan unit 503, which draws the air inside the operating room 1 into the exhaust chamber 501. The controller 10 opens the second fan unit 504, which draws the air inside the exhaust chamber 501 into the air duct 4. The air moves along the direction of the air duct 4 and enters the air outlet 3 at the top of the outer wall of the operating room 1 from the top of the air duct 4, completing the internal circulation of the air. The air curtain machine 505 blows the air out of the air outlet 3 and forms an air curtain to prevent paint from floating upwards and contaminating the interior space of the operating room 1 during the painting process.

[0024] It should be noted that the controller 10 mentioned above is a PLC controller, which is a digital computing controller with a microprocessor for automation control. It can load control instructions into memory for storage and execution at any time. This part is well-known technology in the field and will not be described in detail here.

[0025] It should be noted that the air curtain machine 505 described above is an air purification device that uses a high-speed motor to drive a cross-flow or centrifugal impeller to generate a powerful airflow to form an air curtain. This part is well-known technology in the field and will not be elaborated here.

[0026] The washing chamber 601 is equipped with filter plates 602 at both the top and bottom. The outer wall of the filter plates 602 has multiple filter holes. The washing chamber 601 is equipped with an atomizing tube 603, one end of which is connected to a water supply system 604.

[0027] The deodorizing chamber 605 is located above the washing chamber 601, and two filter elements 606 are installed inside the deodorizing chamber 605.

[0028] The operating room 1 has a main door 8 at its opening, a side door 9 on one side of its outer wall, a controller 10 on the side of the operating room 1 with the side door 9, and a base 7 at the bottom of the operating room 1.

[0029] Specifically, the drawn air moves from the bottom of the air duct 4 to the top of the air duct 4. The air first passes through the filter plate 602 at the bottom of the washing chamber 601 and enters the washing chamber 601. The water supply system 604 pushes water into the atomizing tube 603. The water is sprayed out from the nozzle set on the outer wall of the atomizing tube 603. The atomized water droplets collect with the paint droplets suspended in the air, thereby washing away the paint droplets in the air. After the air is washed, it passes through the filter plate 602 at the top of the washing chamber 601 and enters the deodorizing chamber 605. The filter element 606 set in the deodorizing chamber 605 has a multi-stage filter plate 602 structure. Activated carbon is filled between the filter plates 602. The filter element 606 absorbs odor molecules and residual water in the air, completing the cleaning of the circulating air.

[0030] It should be noted that the activated carbon described above has a well-developed pore structure and captures air pollutants through physical and chemical adsorption. This part is a well-known technology in the field and will not be elaborated here.

[0031] Working principle: When in use, the staff opens the main door 8 and transports the items to be painted into the operating room 1. Then, the main door 8 is closed, and the staff leaves the operating room 1 through the side door 9 and operates the controller 10 to start the first fan unit 503, the second fan unit 504, and the air curtain machine 505. After the equipment has been running for a period of time, the operator enters the operating room 1 through the side door 9 to paint the items. After the painting is completed, the main door 8 is opened to transport the painted items out of the operating room 1.

[0032] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An internal circulation type paint spray booth, characterized by comprising: include: The operating room (1) has air outlets (3) on the top of the outer walls on both sides; The circulation mechanism (5) includes an exhaust chamber (501) located at the bottom of the operating room (1). One side of the exhaust chamber (501) is connected to an air duct (4). One end of the air duct (4) is connected to an air outlet (3) at a corresponding position. Air is drawn in from the exhaust chamber (501) and blown out from the air outlet (3) to complete the internal air circulation of the operating room (1). The cleaning mechanism (6) includes a washing chamber (601) and a deodorizing chamber (605) located outside the operating room (1) and connected to the air duct (4). The washing chamber (601) washes away small paint droplets in the circulating air, and the deodorizing chamber (605) removes odors from the circulating air.

2. The inside circulating type paint spray booth according to claim 1, wherein The operating room (1) has multiple ventilation slots (2) at the bottom. The exhaust chamber (501) is connected to a mounting frame (502). A first fan unit (503) is installed on the top of the mounting frame (502). A second fan unit (504) is fixedly installed at the bottom of the air duct (4) by a rod. The positions of the first fan unit (503) and the second fan unit (504) are set to be perpendicular to each other.

3. The inside circulating type paint spray booth according to claim 1, wherein Multiple air curtain machines (505) are installed on the top of the inner walls on both sides of the operating room (1), and the installation area of ​​the air curtain machine (505) is connected to the air outlet (3).

4. The inside circulating type paint spray booth according to claim 1, wherein The washing chamber (601) is provided with filter plates (602) at the top and bottom. The filter plates (602) have multiple filter holes on their outer walls. The washing chamber (601) is provided with an atomizing tube (603) inside. One end of the atomizing tube (603) is connected to a water supply system (604).

5. The inside circulating type paint spray booth according to claim 1, wherein The deodorizing chamber (605) is located above the washing chamber (601), and two filter elements (606) are installed inside the deodorizing chamber (605).

6. The inside circulating type paint spray booth according to claim 1, wherein The operating room (1) has a main door (8) at its opening, a side door (9) on one side of the outer wall of the operating room (1), a controller (10) on the side of the operating room (1) with the side door (9), and a base (7) at the bottom of the operating room (1).

Images