Automobile spray paint room

Abstract

The present invention discloses an automobile spray paint room, comprising a spray paint room, wherein the spray paint room has a sealed door, and at least one set of ventilation devices are arranged on inner walls around the spray paint room, the ventilation devices include an air outlet slot and an air inlet slot, the air outlet slot of each set of ventilation devices is opposite to the air inlet of the air inlet slot, the air inlet slot adopts a fresh air system, the air inlet slot presses the gas to flow in the direction of the air outlet slot of the adjacent ventilation device, so that the airflow can rotate in and out of the spray paint room in a circular shape, the top of the spray paint room is provided with a positive pressure air intake group which diffuses downward to the surroundings, and the bottom of the spray paint room is provided with a reverse pressure air intake group which diffuses upward to the surroundings, the airflow path in the spray paint room is pressure diffusion from top to bottom to the surroundings, and the airflow is circulated and replaced around, so that the airflow in the spray paint room is continuously renewed, and the exhaust gas is continuously discharged and purified, thereby greatly reducing the air pollution in the spray paint room, solving the exhaust gas emission problem at the same time, and promoting the green development of the economy.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile repair waste gas treatment, and in particular relates to an automobile spray paint room. Background Art

[0002] With the development of the economy and society, cars have become an indispensable means of transportation in daily life. With the increasing number of cars, the auto repair industry has flourished. However, due to the lack of awareness and technology of most auto repair companies, and insufficient research on pollution prevention and control in the auto repair industry, the auto repair industry has become a major producer of wastewater, waste gas, and solid waste. Under the increasingly stringent environmental protection situation, auto repair companies in many places have been forced to rectify or even shut down.

[0003] Guangdong Province has more than 20 million motor vehicles, accounting for 9% of the country's total, making it a major province for auto repair pollution. However, there is still a large gap between the province's auto repair pollution treatment capacity and demand, and the technology still has defects. The exhaust gas generated by the auto repair industry has not been effectively purified, causing environmental pollution and affecting the health of people in surrounding areas. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide an automobile spray paint booth that can properly solve the pollution of paint spray gas.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The present invention is an automobile spray paint room, comprising a spray paint room, wherein the spray paint room has a sealed door, and at least one set of ventilation devices are arranged on the inner walls around the spray paint room, the ventilation devices include an air outlet slot and an air inlet slot, the air outlet slot of each set of ventilation devices is opposite to the air inlet of the air inlet slot, the air inlet slot adopts a fresh air system, the air inlet slot presses the gas to flow in the direction of the air outlet slot of the adjacent ventilation device, so that the airflow can rotate in and out of the spray paint room in a circular shape, the top of the spray paint room is provided with a positive pressure air intake group that diffuses downward to the surroundings, and the bottom of the spray paint room is provided with a reverse pressure air intake group that diffuses upward to the surroundings, and the airflow path in the spray paint room is pressure diffusion from top to bottom to the surroundings, and the airflow is circulated and replaced all around.

[0007] The air inlet of the air inlet slot of the present invention compresses air toward the inner wall of the paint spraying room, the drainage direction of the air outlet slot is misaligned with the air compressing direction of the air inlet slot, and the air receiving surface of the air outlet slot is larger than the air outlet surface of the air inlet slot.

[0008] The bottom of the paint spraying room of the present invention has a first fan, each air outlet slot is connected to the first fan through an air pipe, and the first fan passes through a water curtain spray device below and enters a dissolution pool. The other end of the dissolution pool is connected to an exhaust channel upward and to a wastewater treatment pool downward.

[0009] The water curtain spraying device of the present invention comprises a plurality of spraying heads located on both sides below the first fan, and each spraying head sprays obliquely downward to form a water curtain.

[0010] The exhaust passage of the present invention is provided with an ionization adsorption layer and an odor filtering layer in sequence from bottom to top.

[0011] The ionization adsorption layer of the invention is composed of a plurality of positive electrode adsorption rods and negative electrode adsorption rods.

[0012] The positive pressure air intake group and the reverse pressure air intake group of the present invention are annular or rectangular, and the air outlets of both are inclined to the surroundings. The center of the paint spraying room is the car placement area, and the wind pressure of the positive pressure air intake group and the reverse pressure air intake group are diffused from the car placement area to the surroundings.

[0013] The bottom of the spray booth of the present invention is provided with a heating device inside the back-pressure air intake group, and the floor of the spray booth above the heating device is equipped with a grille.

[0014] The positive pressure air intake group of the present invention is supplied with air by the second fan, and the reverse pressure air intake group is supplied with air by the third fan.

[0015] A negative pressure fan is arranged above the heating device of the present invention, that is, in the middle of the positive pressure air intake group, to induce the hot air to rise vertically.

[0016] The present invention utilizes inlet and outlet airflows to quickly purify exhaust gas in the paint spraying room. The airflow flow path in the paint spraying room is pressure diffusion from top to bottom, and the airflow is circulated and replaced around, so that the airflow in the paint spraying room is continuously updated, and the exhaust gas is continuously discharged and purified, which greatly reduces the air pollution in the paint spraying room. The staff in the paint spraying room do not need to wear heavy oxygen cylinders or air purification equipment, and only need a mask to avoid being polluted by exhaust gas. In addition to forming an annular air flow path outside the car placement area, an ascending hot air flow is also formed in the car placement area. Combined with the annular wind pressure, the internal heat and external wind complement each other, and the paint on the car body is quickly dried, efficiency is improved, and economic green development is promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a top view of the wind flow path related to the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Reference Figure 1 , Figure 2As shown, an automobile spray paint room has a spray paint room 1, and the spray paint room 1 has a sealed door 11. When the sealed door 11 is closed, exhaust gas can be prevented from overflowing. At least one set of ventilation devices are arranged on the inner walls around the spray paint room 1. The ventilation devices include an air outlet groove 2 and an air inlet groove 3. The air outlets 2 and the air inlet grooves 3 of each set of ventilation devices are opposite in direction. The air inlet groove 3 adopts a fresh air system, that is, outdoor gas passes through a blower 31 and a filter layer to form fresh air and enter the room, so as to achieve the purpose of rapid ventilation.

[0021] Specifically, the air inlet groove 3 presses the gas to flow in the direction of the air outlet groove 2 of the adjacent ventilation device, roughly connecting the air inlet flow and the air outlet flow end to end, and enabling the airflow to rotate in and out of the paint spray booth 1 in a circular shape. The top of the paint spray booth 1 has a positive pressure air inlet group 4 that diffuses downward to the surroundings, and the bottom of the paint spray booth 1 has a negative pressure air inlet group 5 that diffuses upward to the surroundings. The airflow path in the paint spray booth 1 is pressure diffusion from top to bottom to the surroundings, and the airflow is replaced by a circular rotation around.

[0022] Since the front of the spray booth 1 has a sealed door 11 , a ventilation device needs to be provided on the inner wall of the front to avoid the sealed door 11 . Preferably, a set of ventilation devices is provided on both sides of the sealed door 11 .

[0023] The positive pressure air intake group 4 and the reverse pressure air intake group 5 are annular or rectangular, the positive pressure air intake group 4 is supplied with air by the second fan 41, and the reverse pressure air intake group 5 is supplied with air by the third fan 51, both of which need to be filtered by the fresh air system, and the air outlets of both are inclined to the surroundings, and the center of the paint spraying room 1 is the car placement area. The wind pressure of the positive pressure air intake group 4 and the reverse pressure air intake group 5 are diffused from the car placement area to the surroundings, and the wind flow of the positive pressure air intake group 4 and the reverse pressure air intake group 5 does not affect the painting work in the car placement area. It presents a lateral negative pressure wind, which only drains the paint mist scattered after painting. The scattered paint mist is quickly discharged after being drawn into the annular wind flow, which is also conducive to the rapid drying of the car body paint. At the same time, a small negative pressure vacuum zone is formed in the car placement area to prevent dust on the staff from contaminating the car body paint.

[0024] In order to maximize the squeezing and exhaust of exhaust gas, the air outlet of the air inlet slot 3 presses the air toward the inner wall of the paint spray booth 1, and the drainage direction of the air outlet of the air outlet slot 2 is offset from the air pressure direction of the air inlet slot 3. The air receiving surface of the air outlet of the air outlet slot 2 is larger than the air outlet surface of the air inlet slot 3, thereby forming the air inlet slot 3 pressing the air from the outside to the inside, and the air outlet slot 2 collecting the air from the inside to the outside, and the inlet and outlet air form a double annular airflow that is staggered inside and outside, which can quickly replace the indoor gas.

[0025] Furthermore, the air outlet slot 2 and the air inlet slot 3 are both in the shape of long strips, preferably covering the height of the entire cross section of the spray booth 1 .

[0026] As a gas discharge purification, the bottom of the spray booth 1 is provided with a first fan 21, each gas outlet slot 2 is connected to the first fan 21 through an air pipe, and the first fan 21 passes through a water curtain spray device below and enters the dissolution tank 6, and the other end of the dissolution tank 6 is connected to the exhaust channel 7 upward and to the wastewater treatment tank 8 downward. Each gas outlet slot 2 drives the airflow through the first fan 21, and the discharged waste gas passes through the water curtain spray device downward for spray purification, and then enters the dissolution tank 6 to dissolve harmful substances and then is discharged upward.

[0027] The water curtain spray device includes a plurality of spray heads 61 located on both sides below the first fan 21. Each spray head 61 sprays downward at an angle to form a water curtain. The water curtain spray device can add plant liquid for spraying, which can effectively remove paint residue and paint mist in the spraying waste gas and reduce the viscosity of the paint residue and paint mist. The dissolving tank 6 can be provided with a feeding port or a liquid inlet for adding a coagulant to condense the paint mist.

[0028] The exhaust passage 7 is provided with an ionization adsorption layer 71 and an odor filter layer 72 from bottom to top. The ionization adsorption layer 71 is composed of a plurality of positive adsorption rods and negative adsorption rods. The polluted ions are adsorbed by electrical neutralization, and then the odor is purified by the odor filter layer 72. The odor filter layer 72 can be an activated carbon filter layer, an asbestos layer, etc. The exhaust passage 7 can be provided with an auxiliary fan to assist the first fan 21 in inducing air.

[0029] The wastewater in the dissolution tank 6 flows downward into the wastewater treatment tank 8, which should be a relatively sealed tank body. The wastewater generated can be further treated by setting water inlets and outlets or feeding ports, using drugs or external wastewater filtering equipment.

[0030] In order to further assist the rapid drying of the paint surface of the vehicle body, a heating device 9 is provided at the bottom of the spray booth 1 inside the back pressure air intake group 5. The floor of the spray booth 1 above the heating device 9 is equipped with a grille. The heating device 9 can be an oil-filled heating tube or a steam heating tube. The hot air will rise upward through the grille and pass through the paint surface of the vehicle body to improve the drying efficiency of the paint surface. The heating device 9 can be controlled to open and close independently, and only needs to be opened after the painting is completed to avoid the rising hot air affecting the staff.

[0031] In order to prevent the rising hot air from being drawn into the annular airflow, a negative pressure fan 91 is provided above the heating device 9, i.e. in the middle of the positive pressure air intake group 4, to induce the hot air to rise vertically and directly act on the paint surface around the vehicle body.

[0032] The first fan 21, the second fan 41, and the third fan 51 are all high-pressure fans, while the negative-pressure fan 91 is used as an auxiliary fan for the hot air to rise, and an ordinary blower can be used.

[0033] It should be understood that the technical scope of the present invention is not limited to the contents of the specification. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. An automobile spray paint room, comprising a spray paint room (1), characterized in that: The spray booth (1) has a sealed door (11). At least one set of ventilation devices is provided on the inner walls around the spray booth (1). The ventilation devices include an air outlet slot (2) and an air inlet slot (3). The air outlet directions of the air outlet slot (2) and the air inlet slot (3) of each set of ventilation devices are opposite. The air inlet slot (3) uses a fresh air system to press the gas in the direction of the air outlet slot of the adjacent ventilation device, so that the air flow can rotate in and out of the spray booth (1) in a circular manner. The top of the spray booth (1) has a positive pressure air inlet group (4) that diffuses downward to the surroundings, and the bottom of the spray booth (1) has a negative pressure air inlet group (5) that diffuses upward to the surroundings. The air flow path in the spray booth (1) is pressure diffusion from top to bottom to the surroundings, and the air flow is circulated around and replaced.

2. The automotive spray paint booth according to claim 1, characterized in that: The air outlet direction of the air outlet of the air outlet groove (2) is misaligned with the air pressure direction of the air outlet of the air inlet groove (3), and the air receiving surface of the air outlet of the air outlet groove (2) is larger than the air outlet surface of the air inlet groove (3).

3. An automobile spray paint booth according to claim 1 or 2, characterized in that: The bottom of the spray booth (1) is provided with a first fan (21), each air outlet slot (2) is connected to the first fan (21) via an air pipe, the bottom of the first fan (21) is connected to one end of a dissolving pool (6) via a pipeline, the inner wall of the pipeline is provided with a water curtain spray device, the bottom of the first fan (21) passes through the water curtain spray device and enters the dissolving pool (6), the other end of the dissolving pool (6) is connected to an exhaust channel (7) upwards and to a wastewater treatment pool (8) downwards.

4. The automotive spray paint booth according to claim 3, characterized in that: The water curtain spraying device comprises a plurality of spray heads (61) located on both sides below the first fan (21), and each spray head (61) sprays obliquely downward to form a water curtain.

5. The automotive spray paint booth according to claim 3, characterized in that: An ionization adsorption layer (71) and an odor filtering layer (72) are sequentially arranged in the exhaust passage (7) from bottom to top.

6. The automotive spray paint booth according to claim 5, characterized in that: The ionization adsorption layer (71) is composed of a plurality of positive electrode adsorption rods and negative electrode adsorption rods.

7. An automobile spray paint booth according to claim 1 or 2, characterized in that: The positive pressure air intake group (4) and the reverse pressure air intake group (5) are in the shape of a ring or a rectangle, and the air outlets of both are inclined in all directions. The center of the spray painting room (1) is the automobile placement area, and the wind pressure of the positive pressure air intake group (4) and the reverse pressure air intake group (5) are both diffused from the automobile placement area to the surrounding areas.

8. The automotive spray paint booth according to claim 7, characterized in that: A heating device (9) is provided at the bottom of the spray booth (1) on the inner side of the back-pressure air intake group (5), and a grille is provided on the floor of the spray booth (1) above the heating device (9).

9. The automotive spray paint booth according to claim 7, characterized in that: The positive pressure air intake group (4) is supplied with air by a second fan (41), and the negative pressure air intake group (5) is supplied with air by a third fan (51).

10. The automobile spray painting booth according to claim 8, characterized in that: A negative pressure fan (91) is provided above the heating device (9), i.e. in the middle of the positive pressure air intake group (4), for driving the hot air to rise vertically.

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