TWI787941B - Exhaust gas purification system - Google Patents

Abstract

A waste gas purification system is suitable for purifying waste gas and includes a purification device and a capture device. The purification equipment includes a purification container defining a purification space, at least one intake part that can be driven to actively inject the exhaust gas into the purification space, and at least one discharge the purified exhaust gas out of the purification space exhaust section. The capture device is installed in the purification container, and includes at least one capture piece arranged in the purification space and capable of sticking the suspended particles in the exhaust gas with glue. Wherein the at least one air intake part can be driven to move, or can inject air intermittently and the injection time is not more than 60 seconds, and the pause time is not more than 30 minutes. The exhaust gas purification system can have excellent exhaust gas by the above design. Purifying effect.

Description

Exhaust gas purification system

The invention relates to a waste gas treatment equipment, in particular to a waste gas purification system suitable for purifying waste gas.

With the development of industry, many factories will set up an exhaust gas generation equipment for burning fuel in the high temperature environment required for high temperature processing operations. The fuel used in this type of exhaust gas generation equipment is usually coal or fossil fuels, which will generate a large amount of Exhaust gas, this type of exhaust gas usually contains harmful substances such as particulate pollutants, sulfur oxides, hydroxides, etc. In addition, there are currently other exhaust gas generating equipment such as vehicles on the market. In order to avoid the operation of the exhaust gas generating equipment The exhaust gas (smoke) produced in the process is directly discharged to the outside and pollutes the atmospheric environment. Relevant environmental protection laws and regulations have stipulated the exhaust gas (smoke) emission standards generated by such exhaust gas generating equipment, so the industry usually installs an exhaust gas treatment on these exhaust gas generating equipment. Equipment, the exhaust gas treatment equipment has an exhaust gas purification system for purifying the exhaust gas, and currently the industry has developed a variety of exhaust gas purification systems.

As far as the gas purification device for removing PM2.5 disclosed in China Patent No. CN103212257 is concerned, it includes a hollow shell, and a mucus wall installed in the shell with mucus flowing on the surface. The casing has an air inlet and an exhaust port spaced apart, although the mucus on the mucus wall can adhere to suspended particles such as PM2.5 and PM10 in the gas to be purified entering from the air inlet, and Let the purified gas be discharged from the exhaust port, but because of the poor ability to capture the suspended particles due to the sticky mucus, the purification effect is limited, so the design still needs to be improved.

It is therefore an object of the present invention to provide an exhaust gas purification system which at least overcomes the disadvantages of the prior art.

Therefore, the waste gas purification system of the present invention is suitable for purifying waste gas, and includes a purification device and a capture device. The purification equipment includes a purification container defining a purification space, at least one intake part that can be driven to actively inject the exhaust gas into the purification space, and at least one discharge the purified exhaust gas out of the purification space exhaust section. The capture device is installed in the purification container, and includes at least one capture piece arranged in the purification space and capable of sticking the suspended particles in the exhaust gas with glue.

In addition, the waste gas purification system of the present invention is suitable for purifying waste gas, and includes a purification device and a capture device. The purification equipment includes a purification container defining a purification space, at least one air intake part capable of intermittently injecting the waste gas into the purification space, and at least one exhaust gas for discharging the purified waste gas out of the purification space part, the time of the at least one air intake part is not more than 60 seconds, and the time of pause is not more than 30 minutes. The capture device is installed in the purification container, and includes at least one capture piece arranged in the purification space and capable of sticking the suspended particles in the exhaust gas with glue.

The efficacy of the present invention lies in that the waste gas purification system can fully and properly purify the waste gas through the installation of the capture device, which helps to improve the efficiency of waste gas purification.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to Figures 1 and 2, a first embodiment of the waste gas purification system of the present invention is suitable for connecting with a waste gas generating device (not shown), and can be used to discharge the waste gas discharged from the waste gas generating device after purification treatment. The exhaust gas purification system includes a purification device 1 , a capture device 2 , and a control device 3 .

The purification equipment 1 comprises a purification container 12 delimiting a purification space 11, an air inlet 13 connected to the pipeline of the exhaust gas generation equipment and capable of injecting the exhaust gas discharged from the exhaust gas generation equipment into the purification space 11, and An exhaust part 14 for discharging the purified exhaust gas out of the purification space 11 . In addition, the purification device 1 may also include an exhaust fan 15 installed at the exhaust portion 14 to assist in removing the purified exhaust gas, but the exhaust fan 15 is not a necessary structure of the first embodiment.

The air inlet 13 is a nozzle arranged in the purification container 12, which can be controlled and actuated by the control device 3 (details will be described later), and the exhaust portion 14 is an outlet arranged on the purification container 12. In the first embodiment, the air intake part 13 is located above the capture device 2, and the exhaust part 14 is located below the capture device 2, but the design location and direction are not limited thereto. The air intake portion 13 and the exhaust portion 14 are provided with on-off valves, each of which can be controlled to open or close, and the number of the air intake portion 13 and the exhaust portion 14 is not limited to one, which can be selected according to actual needs. Is it two, three, four...etc.

The capture device 2 is installed in the purification container 12, and includes a capture piece 21 which is arranged in the clean space 11 and can stick the aerosol in the exhaust gas with glue, and a catcher 21 which can be used to drive the movement of the capture piece 21. A driving device 22, and a glue supply member 23 that sprays glue on the surface of the catcher 21. The catching part 21 of the present first embodiment is a belt body that can be driven to loop back and pass under the air inlet part 13. Of course, its design can also be changed. For example, the catching part 21 can also be replaced by a general adhesive tape, Tape with release paper, glue or other structures, if the catcher 21 itself is a viscous structure, the setting of the glue supply member 23 can even be omitted. The drive device 22 in the first embodiment has two rotating shafts 221 that can rotate synchronously to drive the catcher 21, but the structure of the drive device 22 can vary with the design of the catcher 21, and will not be repeated here. illustrate.

The glue supply part 23 can spray glue continuously or intermittently. The glue supply part 23 is fixed in design, and of course it can also be driven to reciprocate, circulate or rotate past the catcher 21, and can also be coated or otherwise The method of disposing the glue on the surface of the catcher 21 is not limited to the first embodiment. It should be noted that the number of the catching part 21 and the glue supplying part 23 is not limited to one, and may be two, three, four...etc. according to actual needs.

The control device 3 includes a detection module 31 installed in the clean space 11 , and a control module 32 for signal connection between the detection module 31 and the air inlet 13 . The detection module 31 can be used to detect the quality of exhaust gas in the clean space 11 and generate a detection signal correspondingly. The control module 32 will receive and analyze the detection signal, and thereby control and adjust the jet flow rate of the air intake part 13, which can be controlled for continuous jet or intermittent jet, and when it is set for intermittent jet, the jet time should not exceed 60 seconds , the pause time is not more than 30 minutes, during the pause, the suspended particles floating due to jet turbulence can have sufficient time to slowly settle down, and then can adhere to the surface of the catcher 21, effectively improving the purification effect .

The control device 3 also includes a driver 33 connected to the air inlet 13 and used to drive the air inlet 13 to move. In design, the control module 32 can also control the driver 33 to adjust the air inlet 13. action, so that the air intake part 13 can be driven to move along the direction that can change the distance from the surface of the catcher 21, that is, it can move upright, inclined or curved relative to the catcher 21 up and down, and can Pass above the catcher 21 in a reciprocating, circular or rotating manner. In the first embodiment, the drive member 33 is specifically a slide rail device arranged in the purification container 12. Of course, it can also be a linear actuator in practice. , Guide rod pneumatic cylinder...etc. Moreover, the control module 32 can also be connected to the driving device 22 by signal, and can send a signal to control the operating speed of the driving device 22 according to the information processing of the detection signal. In addition, the control module 32 can also control the actuation of the glue supply part 23 and the opening and closing of the exhaust part 14 , which will not be described here.

When in use, the glue supply part 23 will spray the glue on the surface of the catch part 21, so as to replenish and renew the stickiness of the catch part 21, and the air inlet part 13 will be driven to actively remove the glue that needs to be purified. When the waste gas is sprayed onto the surface of the capture part 21, the capture part 21 will stick to and capture the suspended particles in the waste gas, such as PM2.5 dust, to purify the waste gas. The detection module 31 will immediately Detecting the quality of exhaust gas in the clean space 11, that is, detecting the concentration of suspended particles in the exhaust gas, and correspondingly generating the detection signal, and the control module 32 will receive and analyze the detection signal, and correspondingly control the The purification device 1 and the capture device 2 are actuated: when the control module 32 judges that the quality of the exhaust gas is not good, it can shorten the time of the air injection of the air intake part 13, or reduce the air injection flow rate of the air intake part 13 or even stop the air injection , or drive the air intake portion 13 close to the surface of the catcher 21, or drive the driving device 22 to increase speed; and when the control module 32 judges that the quality of the exhaust gas is good, it can prolong the time for the air intake portion 13 to inject air , or increase the jet velocity of the air intake portion 13, or drive the air intake portion 13 away from the surface of the catcher 21, or drive the driving device 22 to slow down or even stop. In this way, the suspended particles can be sufficiently and efficiently captured, and the exhaust part 14 is controlled to open until the exhaust gas quality is judged to have reached a purification standard to discharge the purified exhaust gas.

It is worth mentioning that the control module 32 of the first embodiment will also compare and judge the quality of the exhaust gas before and after the exhaust gas enters and exits the purification space 11, and output an air pollution index or an air pollution index before and after the exhaust gas is purified. It is the comparison signal of exhaust gas purification rate. The control device 3 can also include a display (not shown) that is connected to the control module 32 and can display the comparison signal, so that users or consumers can know the improvement effect of the exhaust gas quality.

Referring to Fig. 3, the structure of a second embodiment of the exhaust gas purification system of the present invention is substantially the same as that of the first embodiment, the difference is that the exhaust gas purification system also includes an environmental control device 4, and the environmental control device 4 includes an available A temperature control device 41 to adjust the temperature of the exhaust gas injected into the air inlet 13 to a certain temperature value, and a humidity control device 42 that can be used to adjust the humidity of the exhaust gas injected into the air inlet 13 to a certain humidity value. When in use, it can be used to regulate the temperature and humidity of the injected exhaust gas to achieve the best viscosity of the glue, and can improve the purification efficiency of the suspended particles being stuck and captured. In other variations of the second embodiment, the temperature control device 41 and the humidity control device 42 can also be selected to be activated or set separately. Of course, the environmental control device 4 can also include other devices for regulating the environment. Since the setting position and structure and operation of the environmental control device 4 are not the focus of the present invention, no further description is given here.

Referring to Fig. 4, the structure of a third embodiment of the exhaust gas purification system of the present invention is substantially the same as that of the first embodiment, the difference being that the moving mode of the air inlet 13 is different, and the air inlet of the third embodiment 13 can be driven by the drive member 33 to move along the surface of the catcher 21, that is, it can move horizontally, inclined or curved relative to the catcher 21. Of course, the design of the movement of the air intake part 13 also It can be combined with the moving design of the first embodiment, that is, the air intake part 13 can move left and right, and can also move up and down.

Referring to Fig. 5, the structure of a fourth embodiment of the exhaust gas purification system of the present invention is substantially the same as that of the first embodiment, the difference being that the actuation mode of the air inlet 13 is different, and the air inlet of the fourth embodiment 13 can be driven by the driving part 33 to change the angle relative to the surface of the catching part 21. The driving part 33 in the fourth embodiment is specifically a rotating shaft. Of course, it can also be compared with the first embodiment in terms of design. And at least one of the moving designs of the third embodiment is combined, that is, the air intake part 13 can be rotated to adjust the angle, can move left and right, and can also move up and down.

Referring to Fig. 6, the structure of a fifth embodiment of the exhaust gas purification system of the present invention is substantially the same as that of the first embodiment, the difference being that the type of the air intake portion 13 is changed, and the air injection position and the air injection position can be increased corresponding to the catcher 21. Air injection area, the air intake portion 13 of the fifth embodiment has several injection holes 131 arranged along the surface of the catcher 21, so the purification efficiency can be improved.

Referring to Fig. 7, the structure of a sixth embodiment of the exhaust gas purification system of the present invention is substantially the same as that of the first embodiment, the difference being that the number of the air inlet 13 changes, and the air injection position and air injection can be increased corresponding to the catcher 21 Area, the purifying device 1 of the fifth embodiment includes several air inlets 13, the air inlets 13 are arranged along the surface of the catcher 21, and each air inlet 13 has a nozzle hole 131, so the purification efficiency can be improved. Of course, each air intake portion 13 of the sixth embodiment can also be designed to have a plurality of nozzle holes 131 , which will not be described here again.

Referring to Fig. 8, the structure of a seventh embodiment of the exhaust gas purification system of the present invention is substantially the same as that of the first embodiment, the difference being that the purification device 1 also includes a spray hole protruding from the air inlet 13 in a transverse direction The reflecting part 16 above 131 can prolong the time for the suspended particles to float between the capturing part 21 and the reflecting part 16, so as to increase the chance of the capturing part 21 sticking to the suspended particles. It should be noted that the number of the reflective part 16 is not limited to one, and may be two, three, four...etc. according to actual needs. The catcher 21 of the seventh embodiment is a belt fixedly arranged below the air intake portion 13, so the setting of the driving device 22 (see FIG. 1) can be omitted. Of course, it can also be replaced with a new one as needed. The catcher 21, it should be noted that the design of the catcher 21 can also be changed, such as the catcher 21 of the first embodiment or other configurations.

Referring to Fig. 9, the structure of an eighth embodiment of the exhaust gas purification system of the present invention is substantially the same as that of the seventh embodiment, the difference being that the reflector 16 has a viscose that sticks suspended particles in the exhaust gas. Next to the surface 161, the chances of catching aerosols can be increased.

Referring to Fig. 10, the structure of a ninth embodiment of the exhaust gas purification system of the present invention is substantially the same as that of the first embodiment, the difference is that the structure of the capture device 2 is different, and the driving device 22 also has a snare on the rotating shafts 221 peripheral and can be driven to move the conveying member 222, the capture device 2 includes several capture members 21 that are moved onto the conveying member 222 and driven by the conveying member 222 to pass below the air intake portion 13, each One of the catchers 21 is a plate with glue on the surface and can be used for sticking suspended particles. Of course, the design of the capturing device 2 can also be changed, for example, it can be changed to the capturing member 21 in FIG. 8 . However, the air intake portion 13 of the ninth embodiment can spray the exhaust gas on the surfaces of the catchers 21 intermittently and alternately. It should be noted that the exhaust gas purification system may also include a feeding device (not shown) that sends the capture member 21 to the conveying member 222, and a capture member 21 that is used to recover the suspended particles. recovery equipment (not shown), but because the feeding equipment and the recovery equipment are not the focus of the present invention, so no further description here.

To sum up, the exhaust gas purification system of the present invention can fully and properly purify the exhaust gas through the sticky capture design of the capture device 2, which helps to improve the efficiency of exhaust gas purification. It is a very innovative and practical creation. Therefore, the object of the present invention can indeed be achieved.

But the above-mentioned ones are only embodiments of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

1: Purification equipment 11: Purify the space 12: Purification container 13: Air intake 131: nozzle hole 14: exhaust part 15: Exhaust fan 16: Reflection Department 161: Next face 2: capture device 21: Capture pieces 22: Drive device 221: Shaft 222: Conveyor 23: Glue supply parts 3: Control equipment 31:Detection module 32: Control module 33: Driver 4: Environmental control equipment 41:Temperature control device 42: Humidity control device

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is an incomplete cross-sectional schematic diagram of a first embodiment of the exhaust gas purification system of the present invention; Fig. 2 is a functional block diagram of the first embodiment; Fig. 3 is a functional block diagram of a second embodiment of the exhaust gas purification system of the present invention; Fig. 4 is an incomplete cross-sectional schematic view of a third embodiment of the exhaust gas purification system of the present invention; Fig. 5 is an incomplete cross-sectional schematic view of a fourth embodiment of the exhaust gas purification system of the present invention; Fig. 6 is an incomplete cross-sectional schematic view of a fifth embodiment of the exhaust gas purification system of the present invention; Fig. 7 is an incomplete cross-sectional schematic diagram of a sixth embodiment of the exhaust gas purification system of the present invention; Fig. 8 is an incomplete cross-sectional schematic diagram of a seventh embodiment of the exhaust gas purification system of the present invention; Fig. 9 is an incomplete cross-sectional schematic view of an eighth embodiment of the exhaust gas purification system of the present invention; and Fig. 10 is an incomplete cross-sectional schematic diagram of a ninth embodiment of the exhaust gas purification system of the present invention.

1: Purification equipment

11: Purify the space

12: Purification container

13: Air intake

14: exhaust part

15: Exhaust fan

2: capture device

21: Capture pieces

22: Drive device

221: Shaft

23: Glue supply parts

3: Control equipment

33: Driver

Claims (13)

An exhaust gas purification system, which is suitable for purifying exhaust gas, and includes: a purification device, including a purification container defining a purification space, at least one inlet portion capable of intermittently injecting the exhaust gas into the purification space, and at least one The purified waste gas is discharged from the exhaust part of the purification space, the time of the at least one air intake part is not more than 60 seconds, and the time of pause is not more than 30 minutes; a capture device is installed in the purification container, and Comprising at least one catcher set in the clean space and capable of sticking the aerosols in the exhaust gas with glue; and a control device, including a detection module installed in the clean space, and a signal connection The detection module and the control module of the at least one air intake part, the detection module can be used to detect the exhaust gas quality and generate a detection signal correspondingly, the control module will receive and analyze the detection signal, and thereby Control and adjust the jet flow rate of the at least one air intake part, or the time of jet and pause. The exhaust gas purification system as claimed in claim 1, wherein the purification device further includes a driving member connected to the air intake part and used to drive the air intake part to move, the at least one air intake part can be driven along the Movement in a direction that changes the distance from the at least one catch surface. The exhaust gas purification system as claimed in claim 1, wherein the purification device further includes a driving member connected to the air intake part and used to drive the air intake part to move, and the at least one air intake part can be driven to move along the The surface of at least one catch moves past. The exhaust gas purification system as claimed in claim 1, wherein the purification device further includes a driving member connected to the air intake part and used to drive the air intake part to move, the at least one air intake part can be driven to change the relative The angle of the at least one catch surface. The exhaust gas purification system as claimed in claim 1, wherein the capture device includes several capture elements, and the at least one air intake part sprays the exhaust gas on the surfaces of the capture elements intermittently and in turns. The exhaust gas purification system as claimed in claim 1, wherein the purification device further includes an exhaust fan installed on the at least one exhaust part. The exhaust gas purification system as claimed in claim 1, wherein the purification device comprises an air intake portion having a plurality of spray holes arranged along the surface of the at least one capture member. The exhaust gas purification system as claimed in claim 1, wherein the purification device comprises a plurality of the air inlets arranged along the surface of the at least one catcher, and each of the air inlets has a spray hole. The exhaust gas purification system as claimed in claim 1, wherein the purification device further comprises a reflective part protruding laterally above one of the nozzle holes of the at least one air intake part. The exhaust gas purification system as claimed in claim 9, wherein the reflecting part has an adhesive surface capable of sticking the suspended particles in the exhaust gas with glue. The exhaust gas purification system as claimed in claim 1, wherein the capture device further includes a driving device for driving the at least one capture member to move continuously, the exhaust gas purification system also includes a control device, and the control device includes a The detection module in the clean room, and a signal connection The detection module is connected to the control module of the driving device, the detection module can be used to detect the quality of the exhaust gas in the purification space and correspondingly generate a detection signal, and the control module will receive and analyze the detection signal , and to control the actuation speed of the driving device by sending a signal. When the exhaust gas quality is not good, the driving device is driven to increase speed, and when the exhaust gas quality is good, the driving device is driven to decelerate. The exhaust gas purification system as described in Claim 1, wherein the exhaust gas purification system further includes an environmental control device, the environmental control device includes a thermostat that can be used to adjust the temperature of the exhaust gas injected into the at least one air intake part to a certain temperature value control device. The exhaust gas purification system as described in Claim 1, wherein the exhaust gas purification system further includes an environmental control device, the environmental control device includes a humidifier that can be used to adjust the humidity of the exhaust gas injected into the at least one air intake part to a certain humidity value control device.

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