WO2010069143A1

WO2010069143A1 - Energy-saving emission-reduction type paint-spraying and -baking house

Info

Publication number: WO2010069143A1
Application number: PCT/CN2009/001482
Authority: WO
Inventors: 孙新艾
Original assignee: Sun xin ai
Priority date: 2008-12-19
Filing date: 2009-12-17
Publication date: 2010-06-24
Also published as: CN101433894A

Abstract

An energy-saving emission-reduction type paint-spraying and -baking house includes an air intake system (1), a clean room (2), and an air exhaust system (3). The air intake system (1) and the air exhaust system (3) are connected with the top and the bottom of the clean room (2) respectively. There is an exhaust fan (31) in the air exhaust system (3), and there are an air intake adjusting system (21) and an air exhaust adjusting system (22). The air intake adjusting system (21) comprises at least two combined air intake units (211), and the air exhaust adjusting system (22) comprises at least two independent combined air exhaust unit (221).

Description

Technical field

The invention relates to the application of spray paint and the structure design technology of the workshop, and particularly provides a spray paint booth. Background technique

With the development of society, the use of paint booths is growing. Especially in important industries such as automobiles, paint booths play a pivotal role.

However, the air inlet and exhaust systems of the traditional paint booths are usually designed according to the coating process requirements and the entire interior area of the paint booth. This design leads to the overall interior air intake of the paint booth during the painting and baking operation. The value of the exhaust air volume is large, so the selected fan power is also large, the unit operation energy consumption is high, and the investment is high; at the same time, due to the high power and large air volume operation of the fan, the noise in the room is large; The amount of wind is large, and the emission of harmful gases is inevitably significantly larger.

It is expected that a paint-and-paint room with energy-saving and noise-reducing paints with better technical effects will be obtained. SUMMARY OF THE INVENTION It is an object of the present invention to provide a paint spray booth that is more energy-efficient and noise-reducing.

The invention relates to an energy-saving and noise-reducing spray paint booth, comprising an air inlet system 1, a clean room 2, and an air exhaust system 3; wherein: the air inlet system 1 is connected to the top of the clean room 2, and the air exhaust system 3 and the clean room 2 The exhaust system 3 includes an exhaust fan 31 for active exhaust; the clean room 2 includes an air intake control system 21 and an exhaust air control system 22; wherein the air intake control system 21 is disposed at The upper part of the clean room 2 is connected with the air inlet system 1, and the exhaust air control system 22 is disposed at a joint between the lower part of the clean room 2 and the exhaust system 3;

The air intake control system 21 is specifically composed of a combination of at least two air intake units 211; and the air exhaust control system 22 is specifically composed of at least two mutually independent air exhaust units 221.

Specifically, the air inlet unit 211 has an opening and closing structure capable of changing the mutual communication relationship between the air inlet system 1 and the clean room 2; the air exhaust unit 221 has a relationship that can change the interconnection relationship between the air exhaust system 3 and the clean room 2 The opening and closing structure. The different air inlet units 211 are arranged independently of each other, and can independently open, close, and change the opening degree.

The different exhaust units 221 are arranged independently of each other, and can independently perform operations of opening, closing, and changing the opening degree. The energy-saving and noise-reducing paint booth adopts a common exhaust system 3 and a common intake system 1 . Preferably, the shared exhaust system 3 and the intake system 1 are determined by the unitized intake unit 211 and the exhaust unit 221 that are specifically involved in the operation to determine the effective working area and the airflow path. The energy-saving and noise-reducing spray paint booth of the present invention also requires protection of the following preferred contents: 11, it is mainly used to adjust the intake air temperature, humidity and other operations. The air inlet system 1 of the energy-saving and noise-reducing spray paint booth is also provided with an air inlet fan 12 for active air intake; in order to ensure high hurricane efficiency, the air flow is stable and does not hinder the paint paint operation effect. The exhaust system 3 or I and the exhaust control system 22 of the energy-saving and noise-reduction paint booth are also provided with structures for separating or I and collecting dust or I and liquid contaminants.

The structure for separating or/and collecting dust or/and liquid contaminants in the exhaust system 3 of the energy-saving and noise-reducing paint booth is specifically preferably: a sieve structure having pores capable of adsorbing dust and liquid droplets. The air inlet unit 211 has a structure capable of changing the opening cross-sectional area of the effective airflow of the air inlet system 1 and the clean room 2; the air exhaust unit 221 has the function of changing the air exhaust system 3 and the clean room 2 A structure in which the effective cross-sectional area of the communication passage is open. The air inlet unit 211 is a static pressure chamber composed of an independent opening and closing damper 2111 and an independent air inlet surface 2112. Each of the air inlet unit 211 and the air inlet system 2 is controlled by an opening and closing damper 2111. The independent air inlet surface 2112 of the air inlet unit 211 is combined to form an integral air inlet surface 2113;

The air exhaust unit 221 is composed of an independent opening and closing damper 2211 and an independent air venting surface 2212. The air exhausting unit 221 and the air exhausting system 3 are controlled by an opening and closing damper 2211, and the air exhausting units are independently exhausted. The faces 2212 are combined into an overall exhaust surface 2213. ' It is important to emphasize that the present invention sets the passages of the air intake system 1 and the exhaust system 3 corresponding to the clean room to at least two units, and each unit can operate independently. According to the actual needs, the target operation can be selected under the premise of ensuring the technical requirements, and the air intake and exhaust air volume are greatly reduced, thereby achieving energy saving and noise reduction.

The present invention sets the air intake control system 21 and the exhaust air control system 22 at the top and bottom of the clean room 2 in the paint booth. The invention realizes the air inlet and exhaust air related operations only on the actual working area of the operator through the flexible design of the air intake control system 21 and the air exhaust control system 22; the air intake unit 211 and the air inlet unit The opening and closing damper 2111 of the system 1 is designed, and the air venting unit 221 and the opening and closing damper 2211 of the air exhaust system 3 are designed. The opening and closing damper 2111 between the air inlet unit 211 and the air inlet system 1 can be realized manually or automatically. Control, to achieve the wind with the people, where the operator goes, the intelligent integration of the incoming air, truly achieve the ideal working state. The static pressure chamber of the air inlet unit 211 in the energy-saving and noise-reduction paint booth of the present invention is designed such that the wind flow provided by the air inlet system 1 passes through the air inlet unit 211 to form a steady, vertically downward, continuous wind flow. In order to achieve uniform paint spray paint.

The air inlet surface 2112 of the air inlet unit 211 can also be provided with an air high efficiency filter, which realizes the static pressure of the air flow through the air high efficiency filter, and provides a stable, vertical downward and continuous air flow, so as to ensure the uniformity of the paint baking paint. The energy-saving and noise-reducing spray paint booth of the invention is designed to reduce the occurrence of paint spraying process. For the emission of harmful gases, an air filter may be provided inside or outside the paint booth to filter the gas generated by the paint baking and then discharge it into the atmosphere. For example, the independent exhaust surface 2212 of the exhaust unit 221 may be a glass filament purifying plate, and the gas generated during the painting process is filtered by the glass purifying plate, and the harmful gas is greatly reduced, thereby reducing the emission of harmful gases in the atmosphere. Or at the end of the exhaust system 3, that is, an air filter or the like is installed outside the paint booth to achieve gas filtration. The emission-reducing paint booth of the invention can be provided with an air conditioner inside the air inlet system, and the paint booth can provide the best temperature for the paint painting work, regardless of the outside temperature, such as when the outside temperature is high. The air conditioner has the function of cooling, and when the outside air temperature is low, the air conditioner has a heating effect, so that the paint baking work is always performed at the optimal temperature, and the quality of the paint baking paint is improved.

When the air inlet fan 12 is disposed in the air inlet system of the emission-reducing paint booth of the present invention, the use of the air inlet fan 12 can significantly increase the wind pressure difference between the top and the bottom of the clean room 2, so that the clean room 2 The flow in the air is smoother and the quality of the paint is improved. The invention carries out secondary technical innovation on the basis of the traditional spray paint booth. The power of the inlet fan in the traditional paint booth is generally 15Kw, the air volume used in the work is generally more than 18000MVh, and the noise in the paint booth is 80. Above the decibel, the exhaust gas emission is above ISOOOMVh; and the power of the air inlet fan of the spray paint booth of the present invention is 4. 5Kw, the maximum air volume used in the work is 5800MVh, and the noise is only 60 decibels, which can be seen that the spray paint booth of the invention greatly saves Energy, reduced investment, reduced noise, and reduced emissions of harmful gases. The painting paint booth of the invention adopts the unit air inlet and exhaust air design to meet the requirements of the painting process, so that the air intake amount, the exhaust air volume, the selected fan power, the consumed energy, and the generated noise are adopted. The emission of harmful gases in the exhaust gas has been greatly reduced, and the amount of capital invested in the production process has been greatly reduced. BRIEF abstract

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments - FIG. 1 is a schematic diagram showing the structure of an energy-saving and noise-reducing paint booth;

2 is a schematic structural view of an independent air inlet unit 211;

3 is a schematic structural view of an independent exhaust unit 221;

Figure 4 is a schematic view showing the structure of the overall air inlet surface 2113 of the present invention;

Fig. 5 is a schematic view showing the configuration of the entire exhaust surface 2213 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1

Energy-saving and noise-reducing paint booth, used for painting paint on the basic model of the car (specification: 6920X 3900 X 2650): The specific design is as follows (as shown in Figure 1-5) - There is air intake on the clean room 2 The control system 21, the air intake control system 21 is composed of 12 independent air inlet units 211, and the upper end of each independent air inlet unit 211 is provided with an opening and closing damper 2111, and one end of the opening and closing damper 2111 is connected with the damper automatic actuator. 2114 (Model QGSY- 6~10Ν ·Μ), The bottom of each independent air inlet unit 211 is provided with a separate air inlet surface 2112, the independent air inlet surface 2112 is an air high efficiency filter panel, and 12 independent air inlet surfaces 2112 are combined into an integral air inlet surface 2113, the clean room 2 One side is provided with an air inlet fan 12, the air inlet fan 12 is connected to the air conditioner 11, the air conditioner 11 is connected to the air inlet line 13, and the air inlet fan 12 is connected to the air inlet line 14, and the air inlet line 14 is connected. A pipeline damper adjustment plate 15 is arranged therein, and an air exhaust control system 22 is arranged at the bottom of the clean room 2, and the exhaust air control system 22 is composed of 14 independent exhaust units 221, and the top end of each independent exhaust unit 221 is provided. There is a separate exhaust surface 2212, the independent exhaust surface 2212 is a glass wool purification board, 14 independent exhaust surfaces 2212 constitute an integral exhaust surface 2213, and the independent exhaust unit 221 is provided with an opening and closing damper 2211 on the side thereof. One end of the closing damper 2211 is connected to the damper automatic actuator 2214 (model number QGSY-6-10N · M), the air vent 2215 is connected with the exhaust duct 2216, and the exhaust duct 23 is connected with the total exhaust unit 34, the total row The air unit 34 is connected to the exhaust fan 31, and the exhaust fan 31 is connected to the exhaust duct 35.

(1) Fan power consumption: Fan power consumption refers to the power required to send and exhaust fans. The air volume of the incoming air is designed according to the unit working area of the workers in the spray paint room to determine the air supply area and the coating process requirements. Therefore, the air intake of the unit is Q=SV, and S is the air intake unit. The area of the wind surface, V is the wind speed of the wind surface. According to the actual operation measurement, the unit-type air outlet surface area of the spray paint integrated room is determined as S=2400 X 2500 X 1=6 (m2), Q 2 6 X 0. 35=2. 1 cubic meter/second= 5 kW~2 2 kW, the wind speed of the inlet fan is usually 1. 5 kW ~ 2. 2 kW, according to the unit air intake of 7560 cubic meters / hour, the wind speed of the air outlet in the room is not less than 0. 35 m / sec, the inlet fan power is usually 1. 5 kW ~ 2. 2 kW, The matching induced draft fan power is 3 kW ~ 5. 5 kW (dry treatment with exhaust gas, wind pressure of 1300 ~ 1500 Pa). The power consumption of the entire spray booth is at least 4.5 kW ~ 7. 7 kW (see Figure for the structure of the unit for air blasting paint booth). (2) Noise: The noise of the unit type basic spray paint one room is tested according to the industrial noise level, and is generally not more than 65dB (A).

(3) Energy consumption of low temperature season heating paint: Due to the unit type of air supply, if the temperature is below 10 °C in winter, according to the coating process requirements, the temperature of the inlet air in the room needs to be above 25 才能 to meet Painting process requirements in painting operations. Therefore, it is necessary to heat the low temperature air. According to the actual calculation, the basic spray paint room is heated to zero at minus 10 ° C. When painting at 25 ° C, the amount of diesel fuel used for each hour is only 5 kg, equivalent to about 34 yuan.

(4) Pollutant Discharge: Due to the unit-type air supply and exhaust, the concentration of organic solvent per unit volume of air is higher when the paint is sprayed, which makes the adsorption efficiency of the organic device to more than 90%, which is beneficial to the environment. The desorption and recycling of the adsorbed organic matter not only reduces air pollution, but also improves economic benefits. Comparative example 1

Use the traditional spray and paint booth to paint the basic type 6920 X 3900 X 2650; the details are as follows:

(1) Fan power consumption: Fan power consumption refers to the power required to send and exhaust fans. The air volume of the incoming air is designed according to the entire air inlet surface and the coating process requirements in the spray paint room. The wind speed in the room is not less than 0.35 m / s, so the overall air intake in the room is Q 2 SV, S is the area of the wind surface, and V is the wind speed of the wind surface. Through actual measurement, the basic type of wind surface area is S=3000 X 1600 X 4=19. 2 square meters, Q: 19. 2 X0. 35=6. 72 cubic meters I seconds = 24192 cubic meters I hour, according to The inlet air volume is 24,192 cubic meters per hour, the wind pressure is generally 650 to 850 kPa, and the inlet air power of the air inlet fan is usually 7.5 kW to 8 kW, and the matching exhaust fan power is 11 kW to 15 kW. Tile, (dry treatment with exhaust gas, wind pressure of 1300~1500 Pa). The power consumption of the entire spray booth is at least 18. 5 kW~ 23. 0 kW (see the attached drawing for the traditional spray booth).

(2) Noise: The noise of the basic spray paint room is tested according to the industrial noise level, generally not less than 75dB (A);

(3) Energy consumption of low temperature season heating paint: Due to the integrated air supply and exhaust, if the temperature is below minus 10 in winter, according to the coating process requirements, the temperature of the inlet air in the room needs to be above 25 °C to meet the requirements. Painting process requirements in painting operations. Therefore, it is necessary to heat the low temperature air. According to the actual calculation, the basic spray paint room will heat up to zero when it is below 10 °C. When painting at 25 °C, it will consume 16 kg of diesel oil per hour, equivalent to about 110 yuan.

(4) Contaminant discharge Due to the use of integral air supply and exhaust, the concentration of organic solvent per unit volume of air becomes lower when the paint is sprayed, so that the adsorption efficiency of organic devices by environmental protection devices is less than 30%, and the rest of the organic matter is directly discharged to the atmosphere. Go in. Example 2

An energy-saving and noise-reducing paint painting room (according to FIG. 1-5) includes an air inlet system 1, a clean room 2, and an air exhaust system 3; wherein: the air inlet system 1 is connected to the top of the clean room 2, and the air is exhausted The system 3 is connected to the bottom of the clean room 2; the exhaust system 3 includes an exhaust fan 31 for active exhaust;

The clean room 2 includes an air intake control system 21 and an air exhaust control system 22; wherein the air intake control system 21 is disposed at a junction of an upper portion of the clean room 2 and the air intake system 1, and the air exhaust control system 22 is disposed at a lower portion of the clean room 2 Exhaust system 3 connection;

The air intake control system 21 is specifically composed of a combination of at least two air intake units 211; The control system 22 is specifically formed by a combination of at least two mutually independent exhaust units 221 .

Specifically, the air inlet unit 211 has an opening and closing structure capable of changing the mutual communication relationship between the air inlet system 1 and the clean room 2; the air exhaust unit 221 has a relationship that can change the interconnection relationship between the air exhaust system 3 and the clean room 2 The opening and closing structure. The energy-saving and noise-reducing spray paint booth of the embodiment further includes the following contents:

The different air intake units 211 are arranged independently of each other, and can independently perform operations of opening, closing, and changing the opening degree; the different air exhausting units 221 are independently arranged with each other, and can independently open, close, and change. Opening size operation.

The air inlet unit 211 has a structure capable of changing the effective airflow cross-sectional area opening degree of the air inlet system 1 and the clean room 2; the air exhaust unit 221 has the function of changing the air exhaust system 3 and the clean room 2 A structure in which the effective cross-sectional area of the communication passage is open.

The energy-saving and noise-reduction paint booth adopts a common exhaust system 3 and a common intake air system 1 . The shared exhaust system 3 and the intake air system 1 determine the effective working area and the airflow path through the unitized intake unit 211 and the exhaust unit 221 that are specifically involved in the work. The air inlet system 1 of the energy-saving and noise-reducing paint booth can also be provided with an air conditioner 11, which is mainly used for adjusting the intake air temperature and humidity.

The air inlet system 1 of the energy-saving and noise-reducing paint booth is also provided with an air inlet fan 12 for active air intake; in order to ensure high air intake efficiency, the airflow is stable and does not hinder the paint baking operation effect.

The exhaust system 3 or I and the exhaust control system 22 of the energy-saving and noise-reduction paint booth are also A structure for separating or I and collecting dust or I and liquid contaminants is provided, the structure being specifically: a sieve-like structure having small pores capable of adsorbing dust and liquid droplets. The air inlet unit 211 is a static pressure chamber composed of an independent opening and closing damper 2111 and an independent air inlet surface 2112. Each of the air inlet unit 211 and the air inlet system 2 is controlled by an opening and closing damper 2111. The independent air inlet surface 2112 of the air inlet unit 211 is combined to form an integral air inlet surface 2113;

The air exhaust unit 221 is composed of an independent opening and closing damper 2211 and an independent air venting surface 2212. The air exhausting unit 221 and the air exhausting system 3 are controlled by an opening and closing damper 2211, and the air exhausting units are independently exhausted. The faces 2212 are combined into an overall exhaust surface 2213. It should be emphasized that the present embodiment sets the air intake system 1 and the exhaust system 3 corresponding to the clean room to at least two units, which can operate independently.

In this embodiment, the top and bottom portions of the clean room 2 in the paint booth are respectively provided with an air intake control system 21 and an exhaust air control system 22. Through the flexible design of the air intake control system 21 and the exhaust air control system 22, the air intake and exhaust air related operations are performed only on the actual working area of the operator; the air intake unit 211 and the air intake system 1 The opening and closing damper 2111 is designed, and the air venting unit 221 and the opening and closing damper 2211 of the air venting system 3 are designed. The opening and closing damper 2111 between the air inlet unit 211 and the air inlet system 1 can be controlled manually or automatically. When the wind moves with the people, where the operator goes, and the intelligent integration of the incoming air, the ideal working state is realized. The static pressure chamber design of the air inlet unit 211 in the energy-saving and noise-reducing paint booth is made into After the wind flow provided by the wind system 1 passes through the air intake unit 211, a steady, vertical downward, continuous wind flow is formed, thereby achieving the uniform effect of the paint baking paint.

The air inlet surface 2112 of the air inlet unit 211 can also be provided with an air high efficiency filter, which realizes the static pressure of the air flow through the air high efficiency filter, and provides a stable, vertical downward and continuous air flow, so as to ensure uniform paint spray paint. In order to reduce the amount of harmful gas emissions generated during the painting process, the energy-saving and noise-reducing paint-painting room may be provided with an air filter inside or outside the paint-painting room, and the gas generated by the paint-painting process is filtered and then discharged to the atmosphere. in. For example, the independent exhaust surface 2212 of the exhaust unit 221 may be a glass filament purifying plate, and the gas generated during the painting process is filtered by the glass purifying plate, and the harmful gas is greatly reduced, thereby reducing the emission of harmful gases in the atmosphere. Or at the end of the exhaust system 3, that is, an air filter or the like is installed outside the paint booth to achieve gas filtration. The emission-reducing paint booth can be equipped with an air conditioner inside the air inlet system. Regardless of the outside air temperature, the paint booth can provide the best temperature for the paint painting work, such as when the outside air temperature is high, the air conditioning The device has the function of cooling, and when the outside air temperature is low, the air conditioner has a heating effect, so that the paint baking work is always performed at the optimum temperature, and the quality of the paint baking paint is improved.

When the air inlet fan 12 is disposed inside the air inlet system of the emission reduction paint booth, the use of the air inlet fan 12 can significantly increase the wind pressure difference between the top and bottom of the clean room 2, so that the air flow in the clean room 2 It is smoother and improves the quality of paint baking varnish. In this embodiment, the second technical innovation is carried out on the basis of the traditional paint-painting room. The power of the inlet fan in the traditional paint-painting room is generally 15Kw, and the air volume used in the work is generally above 18000M Vh. The noise in the paint booth is sprayed. For more than 80 decibels, the exhaust gas emission is ISOOOMVh or more; and the power of the air inlet fan of the spray paint booth of the present invention is 4. 5Kw, the maximum air volume used during operation is δδΟΟΜ ³ /!!, and the noise is only 60 decibels, the invention can be seen The paint booth saves energy, reduces investment, reduces noise and reduces harmful emissions.

In the spray painting booth of the embodiment, in the case of meeting the requirements of the coating process, the unit inlet air and exhaust air are adopted, so that the air intake amount, the exhaust air volume, the selected fan power, the consumed energy, and the generated The noise and harmful gas emissions in the exhaust gas are greatly reduced, and the capital investment in the production process is also greatly reduced. Example 3

This embodiment is basically the same as the content of Embodiment 2, and the main differences are as follows:

1) in the energy-saving and noise-reduction paint booth, the air inlet system 1 is not provided with a fan for air intake; in the energy-saving and noise-reduction paint booth, the different air exhaust units 221 are arranged independently of each other. , can independently open, close, change the opening size operation.

2) In the energy-saving and noise-reduction paint booth, all of the air inlet unit 211 and the air exhaust unit 221 do not use a common set of exhaust systems 3 and a common intake system 1 . Instead, several sets of exhaust systems 3 and intake systems 1 that can operate relatively independently are used according to the requirements of the actual application.

3) The air conditioner U is not provided in the air intake system 1 of the energy-saving and noise-reduction paint booth. 4) The exhaust system 3 or/and the exhaust control system 22 of the energy-saving and noise-reduction paint booth is provided with a structure for separating or/and collecting dust or/and liquid contaminants, the structure being specifically: A sieve-like structure having small pores capable of adsorbing dust and liquid droplets, and a structure provided in the piping of the exhaust system 3 for adsorbing or collecting dust and liquid dirt by other physical or chemical action. This can be clearly understood in conjunction with the prior art.

5) The air inlet unit 211 is not provided with a structure capable of changing the effective airflow cross-sectional area opening degree of the air inlet system 1 and the clean room 2; the air exhaust unit 221 is also not provided to change the air exhaust system. 3 A structure in which the effective cross-sectional area of the effective gas flow is communicated with the clean room 2 to each other.

6) The air inlet unit 211 is a sliding door structure that is controlled electronically or mechanically.

Claims

Rights request

1. An energy-saving and noise-reducing paint booth, comprising an air inlet system (1), a clean room (2), and an air exhaust system (3); wherein: the air inlet system (1) is connected to the top of the clean room (2) The exhaust system (3) is connected to the bottom of the clean room (2); the exhaust system (3) includes an exhaust fan (31) for active exhaust;

The clean room (2) comprises an air intake control system (21) and an air exhaust control system (22); wherein the air intake control system (21) is disposed at a junction of the upper portion of the clean room (2) and the air intake system (1), The exhaust control system (22) is disposed at the junction of the lower part of the clean room (2) and the exhaust system (3);

The air intake control system (21) is specifically composed of a combination of at least two air intake units (211); and the air exhaust control system (22) is specifically composed of at least two mutually independent air exhaust units (221).

2. The energy-saving and noise-reducing paint spray booth according to claim 1, characterized in that: the air-conditioning system (11) is further provided in the air inlet system (1) of the energy-saving noise-reducing paint booth.

The energy-saving and noise-reducing paint spray booth according to claim 1 or 2, characterized in that: the air inlet system (1) of the energy-saving and noise-reducing spray paint booth is further provided with an air inlet fan for active air intake (12).

4. The energy-saving and noise-reduction paint booth according to claim 3, characterized in that: the exhaust system (3) or/and the exhaust control system (22) of the energy-saving and noise-reduction paint booth is also provided with useful The structure for separating or/and collecting dust or I and liquid contaminants.

5. The energy-saving and noise-reducing paint spray booth according to claim 4, characterized in that: the air exhaust system (3) of the energy-saving and noise-reducing spray paint booth is used for separating or/and collecting dust or/and liquid dirt. The structure of the object is specifically: a sieve-like structure with small pores capable of adsorbing dust and liquid droplets.

6. The energy-saving and noise-reduction paint spray booth according to claim 3, wherein: In addition to the operation of turning on or off the air inlet unit (211) and the air exhaust unit (221), the air inlet unit (211) is further provided with a function of changing the air inlet system (1) and the clean room (2) a structure of an effective gas flow cross-sectional area opening of the communication passage;

The exhaust unit (221) is also provided with a structure capable of changing the opening cross-sectional area of the effective air flow of the exhaust passage (3) and the clean room (2).

7. The energy-saving and noise-reduction paint booth according to claim 4, characterized in that: in addition to being able to open or close the air inlet unit (211) and the air exhaust unit (221),

The air inlet unit (211) is further provided with a structure capable of changing the effective airflow cross-sectional area of the air inlet system (1) and the clean room (2);

The exhaust unit (221) is also provided with a structure capable of changing the effective airflow cross-sectional area opening of the exhaust passage (3) and the clean room (2).

8. The energy-saving and noise-reduction paint booth according to claim 3, wherein: the air inlet unit (211) is composed of an independent opening and closing damper (2111) and an independent air inlet surface (2112). The static pressure chamber, each air inlet unit (211) and the air inlet system (2) are controlled by an opening and closing damper (2111), and the independent air inlet surfaces (2112) of each air inlet unit (211) are combined to form an integral Wind surface (2113);

The exhaust unit (221) is composed of an independent opening and closing damper (2211) and a separate exhausting surface (2212), and an opening and closing damper is arranged between each exhaust unit (221) and the exhaust system (3). (2211) Control, the independent exhaust surfaces (2212) of each exhaust unit are combined into an overall exhaust surface (2213).

9. The energy-saving and noise-reduction paint booth according to claim 4, wherein: the air inlet unit (211) is composed of an independent opening and closing damper (2111) and an independent air inlet surface (2112). Static pressure chamber, between each air inlet unit (211) and the air inlet system (2) Opening and closing damper (2111) control, the independent air inlet surface (2112) of each air inlet unit (211) is combined to form an integral air inlet surface (2113);

10. The energy-saving and noise-reduction paint booth according to claim 6, wherein: the air inlet unit (211) is composed of an independent opening and closing damper (2111) and a separate air inlet surface (2112). The static pressure chamber, each air inlet unit (211) and the air inlet system (2) are controlled by an opening and closing damper (2111), and the independent air inlet surfaces (2112) of each air inlet unit (211) are combined to form an integral Wind surface (2113);

The exhaust unit (221) is composed of an independent opening and closing damper (2211) and a separate exhausting surface (2212), and an opening and closing damper is provided between each exhaust unit (221) and the exhaust system (3). (2211) Control, the independent exhaust surfaces (2212) of each exhaust unit are combined into an overall exhaust surface (2213).