Automobile spraying waste gas emission pretreatment device

Abstract

The utility model relates to the technical field of automobile spraying waste gas pretreatment devices, in particular to an automobile spraying waste gas emission pretreatment device which comprises a treatment box, and communication openings are formed in the two sides of the treatment box. By arranging the electric sliding rail, the multi-point pressure sensor, the movable opening and the stress piston, the detection block can be driven by the electric sliding rail to move in the corresponding direction, so that the detection block is attached to the atomizing nozzle on the hollow plate, and the atomizing nozzle is started to spray water; when the atomization nozzle is blocked, the sprayed water extrudes the stress piston in the movable opening, the pressure extrudes the multi-point pressure sensor through the trigger rod, and if the atomization nozzle is blocked, the position of the corresponding trigger rod is not pressed, so that the atomization nozzle can be detected, and the problem that the atomization nozzle is blocked and is difficult to find is solved. Therefore, the treatment effect of the device is improved.

Description

Technical Field

[0001] This application relates to the technical field of automotive paint exhaust gas pretreatment devices, and in particular to an automotive paint exhaust gas pretreatment device. Background Technology

[0002] Automotive painting exhaust is a complex gaseous mixture containing various organic compounds such as benzene, toluene, xylene, ethyl acetate, and methyl ethyl ketone (MEK). These compounds are produced during the painting process due to the volatilization of organic solvents in the paint. Benzene is a highly toxic substance, and long-term exposure can seriously damage the human hematopoietic system, potentially leading to diseases such as leukemia. Therefore, treatment devices are usually required to treat the exhaust to reduce environmental pollution.

[0003] A search revealed Chinese patent application CN202321170647.X, which discloses a pretreatment filter box for spray painting exhaust gas. The box includes a water tank with an inlet pipe and an outlet pipe horizontally connected to its two sides. A partition is fixedly connected inside the water tank, dividing the bottom into a wastewater zone and a clean water zone. A U-shaped plate is suspended and fixedly connected to the inner wall of the water tank, located within the clean water zone. A filter plate is fixed to the inner side of the U-shaped plate. A through groove communicating with the U-shaped plate extends through the side of the partition. A brush is fixedly connected to the top surface of the U-shaped plate. This invention, by using a brush consisting of a cam, push plate, push rod, spring, and sponge block, automatically cleans the filter plate without disassembling the device, thus improving the convenience of filter plate cleaning.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: In the existing technology, water is delivered into the hollow plate through the first water pipe, and the water entering the hollow plate is sprayed out by the nozzle. During long-term use, the nozzle is prone to clogging. Even if a few nozzles are clogged or have slight cracks, the nozzle can still continue to work, but the working efficiency is reduced. However, this is not easily noticed by personnel. Furthermore, the coverage and uniformity of the water mist are affected after clogging, and some particles cannot fully contact the water mist, thereby reducing the quality and efficiency of pretreatment. Utility Model Content

[0005] In order to solve the problems mentioned in the background art, this application provides a pretreatment device for automobile painting exhaust gas.

[0006] This application provides a pretreatment device for automobile painting exhaust gas, which adopts the following technical solution: it includes a treatment box, both sides of the treatment box are provided with connecting ports, the inner walls of the connecting ports are fixedly connected with exhaust gas pipes, the inner walls of the treatment box are fixedly connected with two water pumps, the output ends of the two water pumps are fixedly connected with conduits, the output ends of the conduits are fixedly connected with hollow plates, and the lower sides of the multiple hollow plates are provided with atomizing nozzles.

[0007] An electric slide rail is fixedly connected to one side of the inner wall of the processing box. A detection block is slidably fitted on the electric slide rail. A detection cavity is opened in the inner wall of the detection block. A multi-point pressure sensor is fixedly connected to the lower side of the inner wall of the detection cavity. Multiple movable ports that cooperate with the atomizing nozzle are opened in the upper side of the inner wall of the detection cavity. A force-receiving piston is slidably fitted in the inner wall of each movable port. A trigger rod that cooperates with the multi-point pressure sensor is set in the lower side of the force-receiving piston. A maintenance port is opened in the upper side of the processing box. A sealing block is set in the inner wall of the maintenance port. A clamping mechanism is set between the sealing block and the processing box.

[0008] Optionally, the clamping mechanism includes two movable grooves formed on the upper side of the sealing block, a plug-in block that slides into the inner wall of the two movable grooves, a force-bearing frame that is fixedly connected to the upper side of the processing box and cooperates with the two plug-in blocks, and a top pressure spring that is fixedly connected between the movable grooves and the plug-in blocks.

[0009] Optionally, two filter frames are fixedly connected inside the treatment tank, and the two filter frames are located outside the two water pumps.

[0010] Optionally, a liquid observation port is provided on one side of the processing box, and a transparent plate is fixedly connected to the inner wall of the liquid observation port.

[0011] Optionally, a drain port is provided on one side of the processing box, and a drain valve is fixedly connected to the inner wall of the drain port.

[0012] Optionally, a liquid injection port is provided on one side of the processing box, and a sealing plug is provided on the inner wall of the liquid injection port.

[0013] Optionally, the upper side of the detection block is fixedly connected with multiple sealing rings, which cooperate with multiple atomizing nozzles.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. This utility model, by setting up an electric slide rail, multi-point pressure sensors, a movable port, and a force-receiving piston, enables the electric slide rail to drive the detection block to move in the corresponding direction, so that the detection block is in contact with the atomizing nozzle on the hollow plate. When the atomizing nozzle is activated to spray water, the sprayed water will compress the force-receiving piston in the movable port. The pressure will then compress the multi-point pressure sensors through a trigger rod. If the atomizing nozzle is blocked, the corresponding trigger rod position will not be subjected to pressure, thereby enabling the detection of the atomizing nozzle. This avoids the problem of the atomizing nozzle being difficult to detect, which would lead to a decrease in processing quality and thus improve the processing effect of this device.

[0016] 2. By setting up a maintenance port, a sealing block, and a clamping mechanism, when the atomizing nozzle becomes clogged, it can be directly separated from the corresponding force-bearing frame by holding the two plug-in blocks by hand, thereby releasing the restriction on the sealing block and allowing the sealing block to detach from the maintenance port for internal inspection. This improves the convenience of subsequent inspection and disassembly, and thus improves the efficiency of subsequent maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the overall three-dimensional cross-section of the embodiments of this application;

[0019] Figure 3 This is an embodiment of the present application. Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a three-dimensional structural diagram of the sealing block in an embodiment of this application.

[0021] Reference numerals: 1. Processing box; 2. Connection port; 3. Exhaust gas pipe; 4. Water pump; 5. Conduit; 6. Hollow plate; 7. Atomizing nozzle; 8. Electric slide rail; 9. Detection block; 10. Detection chamber; 11. Multi-point pressure sensor; 12. Movable port; 13. Force-bearing piston; 14. Trigger rod; 15. Maintenance port; 16. Sealing block; 17. Clamping mechanism; 171. Movable groove; 172. Insertion block; 173. Force-bearing frame; 174. Top pressure spring; 18. Filter frame; 19. Observation port; 20. Transparent plate; 21. Drain port; 22. Drain valve; 23. Injection port; 24. Sealing plug; 25. Sealing ring. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 —4. This application will be described in further detail.

[0023] This application discloses a pretreatment device for exhaust gas from automobile painting. For example... Figure 1As shown, the treatment box 1 is provided. Both sides of the treatment box 1 are provided with connecting ports 2. The inner walls of the connecting ports 2 are fixedly connected with exhaust pipes 3. The inner walls of the treatment box 1 are fixedly connected with two water pumps 4. The output ends of the two water pumps 4 are fixedly connected with conduits 5. The output ends of the conduits 5 are fixedly connected with hollow plates 6. Atomizing nozzles 7 are provided on the lower side of the multiple hollow plates 6.

[0024] An electric slide rail 8 is fixedly connected to one side of the inner wall of the processing box 1. A detection block 9 is slidably fitted on the electric slide rail 8. A detection cavity 10 is opened on the inner wall of the detection block 9. A multi-point pressure sensor 11 is fixedly connected to the lower side of the inner wall of the detection cavity 10. A plurality of movable ports 12 that cooperate with the atomizing nozzle 7 are opened on the upper side of the inner wall of the detection cavity 10. A force-receiving piston 13 is slidably fitted on the inner wall of each movable port 12. A trigger rod 14 that cooperates with the multi-point pressure sensor 11 is provided on the lower side of the force-receiving piston 13. A maintenance port 15 is opened on the upper side of the processing box 1. A sealing block 16 is provided on the inner wall of the maintenance port 15. A clamping mechanism 17 is provided between the sealing block 16 and the processing box 1.

[0025] Please see Figure 1 The clamping mechanism 17 includes two movable grooves 171 on the upper side of the sealing block 16, a plug-in block 172 that slides in the inner wall of the two movable grooves 171, a force-bearing frame 173 that is fixedly connected to the upper side of the processing box 1 and cooperates with the two plug-in blocks 172, and a top-pressure spring 174 that is fixedly connected between the movable grooves 171 and the plug-in blocks 172. When the sealing block 16 is installed inside the maintenance port 15, its plug-in block 172 is inserted into the force-bearing frame 173 under the pressure of the top-pressure spring 174, thereby restricting the sealing block 16 by the force-bearing frame 173. When disassembly is required, the sealing block 16 can be disassembled by swinging the plug-in block 172 to release the restriction.

[0026] Please see Figure 2 The treatment box 1 has two filter frames 18 fixedly connected inside. The two filter frames 18 are located outside the two water pumps 4. The filter frames 18 are located outside the water pumps 4 to filter the impurities in the clean water after cleaning, so as to avoid the impurities from affecting the water pumps 4.

[0027] Please see Figure 2 A liquid observation port 19 is provided on one side of the treatment box 1. A transparent plate 20 is fixedly connected to the inner wall of the liquid observation port 19. Through the liquid observation port 19, personnel can easily observe the liquid inside the treatment box 1 through the transparent plate 20, so as to replenish the liquid in time when it is insufficient.

[0028] Please see Figure 1 and Figure 2 The treatment tank 1 has a drain port 21 on one side. A drain valve 22 is fixedly connected to the inner wall of the drain port 21. The drain port 21 can discharge the cleaned wastewater to replace the water source.

[0029] Please see Figure 2 A liquid injection port 23 is provided on one side of the treatment tank 1. A sealing plug 24 is provided on the inner wall of the liquid injection port 23. Water can be easily injected into the treatment tank 1 through the liquid injection port 23. The sealing plug 24 can seal the liquid injection port 23 to prevent air leakage during pretreatment.

[0030] Please see Figure 3 Multiple sealing rings 25 are fixedly connected to the upper side of the detection block 9. The multiple sealing rings 25 cooperate with multiple atomizing nozzles 7. When the detection block 9 moves and comes into contact with the hollow plate 6, the sealing rings 25 can seal the outer side of the corresponding atomizing nozzle 7 to a certain degree that can withstand a certain pressure, so as to facilitate subsequent pressure testing.

[0031] The implementation principle of the automobile painting exhaust gas pretreatment device in this application embodiment is as follows: When in use, firstly, the exhaust gas pipe 3 is connected to the corresponding odor painting exhaust gas discharge pipe, then appropriate clean water is injected into the treatment box 1, and the clean water is extracted by starting the water pump 4 and injected into the hollow plate 6 through the conduit 5, and then sprayed out through the corresponding multiple atomizing nozzles 7 to achieve pretreatment of the flowing exhaust gas. The cleaned gas is discharged from another exhaust gas pipe 3, which can be connected to the corresponding treatment equipment for subsequent treatment.

[0032] Before each use, the detection block 9 can be moved in the corresponding direction by controlling the electric slide rail 8, so that the detection block 9 and the atomizing nozzle 7 on the hollow plate 6 are in contact. Then, by starting the water pump 4, the corresponding atomizing nozzle 7 sprays water. The sprayed water will squeeze the force piston 13 in the movable port 12. The pressure will squeeze the multi-point pressure sensor 11 through the trigger rod 14. If the atomizing nozzle 7 is blocked, the corresponding trigger rod 14 will not be pressured, thus realizing the detection of the atomizing nozzle 7. This avoids the difficulty in detecting the blockage of the atomizing nozzle 7, which will lead to a decrease in processing quality and improve the processing effect of the device. All internal driving components are waterproof and the parts in contact with water are treated with corrosion resistance.

[0033] When the atomizing nozzle 7 becomes clogged, it can be directly separated from the corresponding force-bearing frame 173 by holding the two plug-in blocks 172, thereby releasing the restriction on the sealing block 16 and allowing the sealing block 16 to be detached from the maintenance port 15 for internal inspection. This improves the convenience of subsequent inspection and disassembly, and thus improves the efficiency of subsequent maintenance.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An exhaust gas emission pre-treatment device for automotive painting, comprising a treatment tank (1), characterized in that: Both sides of the processing box (1) are provided with a communication port (2), the inner wall of the communication port (2) is fixedly connected with a waste gas pipe (3), the inner wall of the processing box (1) is fixedly connected with two water pumps (4), the output end of the two water pumps (4) is fixedly connected with a conduit (5), the output end of the conduit (5) is fixedly connected with a hollow plate (6), the lower side of the plurality of hollow plates (6) is provided with an atomizing nozzle (7). One side of the inner wall of the processing box (1) is fixedly connected with an electric sliding rail (8), the electric sliding rail (8) is slidably connected with a detection block (9), the inner wall of the detection block (9) is provided with a detection cavity (10), the lower side of the inner wall of the detection cavity (10) is fixedly connected with a multi-point pressure sensor (11), the upper side of the inner wall of the detection cavity (10) is provided with a plurality of movable openings (12) matched with the atomizing nozzles (7), the inner wall of the movable opening (12) is slidably connected with a force piston (13), the lower side of the force piston (13) is provided with a trigger rod (14) matched with the multi-point pressure sensor (11), the upper side of the processing box (1) is provided with a maintenance opening (15), the inner wall of the maintenance opening (15) is provided with a sealing block (16), and the sealing block (16) and the processing box (1) are provided with a clamping mechanism (17).

2. An automotive exhaust emission pre-treatment device for spray painting according to claim 1, characterized in that: The clamping mechanism (17) comprises two movable grooves (171) formed on the upper side of the sealing block (16), an insertion block (172) slidably connected with the inner wall of the two movable grooves (171), a force frame (173) fixedly connected with the upper side of the processing box (1) and matched with the two insertion blocks (172), and a pressing spring (174) fixedly connected between the movable groove (171) and the insertion block (172).

3. An automotive exhaust emission pre-treatment device for spray painting according to claim 1, characterized in that: The processing box (1) is fixedly connected with two filter frames (18), and the two filter frames (18) are located outside the two water pumps (4).

4. An automotive exhaust emission pre-treatment device for spray painting according to claim 1, characterized in that: One side of the processing box (1) is provided with a liquid observation port (19), and the inner wall of the liquid observation port (19) is fixedly connected with a transparent plate (20).

5. An automotive exhaust emission pre-treatment device for spray painting according to claim 1, characterized in that: One side of the processing box (1) is provided with a liquid discharge port (21), and the inner wall of the liquid discharge port (21) is fixedly connected with a liquid discharge valve (22).

6. An automotive paint overspray exhaust emission pretreatment device as set forth in claim 1, characterized by: One side of the processing box (1) is provided with a liquid injection port (23), and the inner wall of the liquid injection port (23) is provided with a sealing plug (24).

7. An automotive exhaust emission pre-treatment device for spray painting according to claim 1, characterized in that: The upper side of the detection block (9) is fixedly connected with a plurality of sealing rings (25), and the plurality of sealing rings (25) are matched with the plurality of atomizing nozzles (7).

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