Anti-backflow exhaust device
By designing the shunt pipe and multiple groups of waste gas treatment devices, combining catalytic and filtration components, the secondary pollution problem caused by the differences in waste gas composition in the existing technology is solved, stable emissions and efficient purification of waste gas are achieved, and the safety of the working environment is ensured. and reliability.
Patent Information
- Application Number
- CN202421065665.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-16
AI Technical Summary
When facing the waste gas generated by different types of hazardous waste, the existing anti-counter-current exhaust devices have large components, which leads to secondary pollution easily after exhaust gas is discharged. The device is not reliable enough, making it difficult to ensure the smooth emission of waste gas and environmental protection.
A countercurrent exhaust device is designed, including exhaust pipe, shunt pipe and two sets of exhaust gas treatment devices. Each set of devices includes catalytic components and filter components. The air flow is accelerated through a one-way ventilation plate and exhaust fan, combined with a valve and an air monitoring device. and alarms ensure one-way emission and purification of exhaust gases and adapt to different exhaust gas components through replaceable catalyst and filtration components.
Effectively prevent the return of exhaust gas, ensure the stability of air in the storage area, reduce the accumulation of waste gas, improve the efficiency of exhaust gas purification, reduce negative environmental impacts, and quickly respond to abnormal situations through monitoring and alarm systems to ensure the stability and safety of exhaust emissions.
Smart Images
Figure CN222286931U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of exhaust devices, in particular to an anti-backflow exhaust device. Background Art
[0002] With the development of industrialization, a large amount of hazardous waste will be generated in the chemical, pharmaceutical, electroplating and other industries. Hazardous waste is often toxic, corrosive, flammable and other characteristics, and needs to be subsequently treated. However, waste gas will be generated during the storage or treatment of hazardous waste, and it is necessary to discharge the generated waste gas to prevent the harmful gas generated by the hazardous waste from flowing back into the storage area, causing the concentration of harmful gas to rise, and posing potential dangers to both the staff and the working environment. In the process of emitting harmful gases, it is necessary to ensure that the waste gas can be discharged smoothly to avoid accumulation in the working environment or reverse flow and re-entry. Therefore, an anti-backflow exhaust device is required in the process of emitting harmful gases.
[0003] The current anti-backflow exhaust device generally has a structure as described in the exhaust pipe for preventing airflow backflow disclosed in the patent application number "CN201020653243.2", including an exhaust pipe, a filter, and a blower. The air outlet of the exhaust pipe is provided with a filter, and a blower is provided below the air outlet. By adding a blower, the exhaust is smoother, and at the same time, it can prevent the airflow from backflowing, causing the equipment to run unsmoothly. The filter prevents debris from entering the equipment from the outdoors. However, this utility model is single in actual application. The exhaust gas components generated by different types of hazardous wastes vary greatly. The high temperature, high humidity and corrosion of the exhaust gas make the reliability of the device cannot be guaranteed, and secondary pollution is easily generated after the exhaust gas is discharged.
[0004] Therefore, the utility model proposes an anti-backflow exhaust device to solve the above-mentioned problem. Utility Model Content
[0005] The utility model aims to provide an anti-backflow exhaust device, which is used to solve the problem in the prior art that different exhaust gas components are quite different and a single exhaust device makes it easy to cause secondary pollution after exhaust gas is discharged.
[0006] The technical solution adopted by the utility model to solve its technical problems is:
[0007] A backflow prevention exhaust device comprises an exhaust pipe, wherein a first branch pipe and a second branch pipe are connected to the end of the exhaust pipe, a first support rod is arranged in the first branch pipe, a first ventilation plate is unidirectionally rotatably connected to the first support rod, a first exhaust gas treatment device is connected to the end of the first branch pipe, the first exhaust gas treatment device comprises a first shell, a first catalytic component and a first filter component are arranged in sequence in the first shell, and a first exhaust fan is connected to the end of the first shell; a second support rod is arranged in the second branch pipe, a second ventilation plate is unidirectionally rotatably connected to the second support rod, a second exhaust gas treatment device is connected to the end of the second branch pipe, the second exhaust gas treatment device comprises a second shell, a second catalytic component and a first filter component are arranged in sequence in the second shell, and a second exhaust fan is connected to the end of the second shell.
[0008] By adopting the above technical solution, it is possible to prevent the gas from flowing back during the discharge process, thereby ensuring the stability of the air in the waste storage area, preventing the waste gas from accumulating indoors, and reducing the occurrence of accidents.
[0009] Furthermore, the first branch pipe is connected to a first valve, and the second branch pipe is connected to a second valve.
[0010] By adopting the above technical solution, the first valve and the second valve can be opened or closed according to work requirements.
[0011] Furthermore, the exhaust pipe is connected to the first branch pipe and the second branch pipe via a third connecting flange.
[0012] Furthermore, the first branch pipe is connected to the first exhaust gas treatment device via a first connecting flange, and the end of the second branch pipe is connected to the second exhaust gas treatment device via a second connecting flange.
[0013] By adopting the above technical solution, the first exhaust gas treatment device and the second exhaust gas treatment device can be replaced through the first connecting flange and the second connecting flange, and the first branch pipe, the second branch pipe and the exhaust pipe can be replaced through the third connecting flange, thereby ensuring the smooth progress of exhaust gas emission work.
[0014] Furthermore, a first air monitoring device and a first alarm are connected to the end of the first exhaust gas treatment device, and the first air monitoring device is electrically connected to the first alarm; a second air monitoring device and a second alarm are connected to the end of the second exhaust gas treatment device, and the second air monitoring device is electrically connected to the second alarm.
[0015] By adopting the above technical solution, the position of the abnormal operation can be quickly locked, and then repair or replacement can be carried out, thereby ensuring the stability of exhaust gas emissions.
[0016] Furthermore, a first cover door is rotatably connected to the first shell, and a first sealing strip is provided on the first cover door; and a second cover door is rotatably connected to the second shell, and a second sealing strip is provided on the second cover door.
[0017] By adopting the above technical solution, it is possible.
[0018] Furthermore, the first catalytic component and the first filter component are both slidably connected to the first shell; the second catalytic component and the second filter component are both slidably connected to the second shell.
[0019] By adopting the above technical solution, the first sealing strip and the second sealing strip ensure the sealing of the first shell and the second shell, and ensure the reliability of exhaust gas discharge.
[0020] Further, the first catalytic component includes a first catalytic box, the two ends of the first catalytic box are staggered with first through holes, the first catalyst is placed in the first catalytic box, and the first catalyst corresponds to the first through hole at any one end; the second catalytic component includes a second catalytic box, the two ends of the second catalytic box are staggered with second through holes, the second catalyst is placed in the second catalytic box, and the second catalyst corresponds to the second through hole at any one end.
[0021] By adopting the above technical solution, harmful substances in the exhaust gas can be catalyzed and converted into harmless substances, which are then discharged through the first through hole and the second through hole, ensuring that the exhaust gas is fully catalyzed, improving the purification efficiency of the exhaust gas, and reducing the negative impact of the exhaust gas on the environment.
[0022] In summary, compared with the prior art, the utility model has the following beneficial effects:
[0023] 1. The first exhaust gas treatment device and the second exhaust gas treatment device of the utility model can catalyze the exhaust gas and filter impurities, reducing the impact of the exhaust gas on the environment. The airflow generated by the first exhaust fan and the second exhaust fan accelerates the exhaust of the exhaust gas. There is an angle between the first branch pipe and the second branch pipe and the exhaust pipe, which can prevent the gas from flowing back during the discharge process, ensure the stability of the air in the waste storage area, prevent the accumulation of exhaust gas indoors, and reduce the occurrence of accidents.
[0024] 2. The utility model can catalyze harmful substances in the exhaust gas and convert them into harmless substances, which are then discharged through the first through hole and the second through hole, thereby ensuring that the exhaust gas is fully catalyzed, improving the purification efficiency of the exhaust gas, and reducing the negative impact of the exhaust gas on the environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 The vertical schematic diagram of the utility model Figure 1 ;
[0026] Figure 2 The vertical schematic diagram of the utility model Figure 2 ;
[0027] Figure 3 It is the front view of the utility model;
[0028] Figure 4 It is a partial cross-sectional schematic diagram of the utility model;
[0029] Figure 5 for Figure 3 AA cross-sectional diagram of ;
[0030] In the figure: 1, exhaust duct; 2, first branch pipe; 3, second branch pipe; 4, third connecting flange; 5, first support rod; 6, first ventilation plate; 7, first shell; 8, first catalytic box; 9, first through hole; 10, first catalyst; 11, first filter assembly; 12, first exhaust fan; 15, second support rod; 16, second ventilation plate; 17, second shell; 18, second catalytic box; 19, second through hole; 20, second catalyst; 21, second filter assembly; 22, second exhaust fan; 23, first valve; 24, second valve; 25, first connecting flange; 26, second connecting flange; 27, first air monitoring device; 28, first alarm; 29, second air monitoring device; 30, second alarm; 31, first cover door; 32, first sealing strip; 33, second cover door; 34, second sealing strip. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] In this application, the directions or positional relationships indicated by the terms "upper", "inner", "outer", "middle", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.
[0033] like Figure 1-4As shown, an anti-backflow exhaust device includes an exhaust pipe 1, the end of the exhaust pipe 1 is connected to a first branch pipe 2 and a second branch pipe 3, a first support rod 5 is arranged in the first branch pipe, a first ventilation plate 6 is unidirectionally connected to the first support rod 5, the end of the first branch pipe 2 is connected to a first exhaust gas treatment device, the first exhaust gas treatment device includes a first shell 7, a first catalytic component and a first filter component 11 are arranged in sequence in the first shell 7, and a first exhaust fan 12 is connected to the end of the first shell 7;
[0034] A second support rod 15 is arranged in the second bronchial pipe, and a second ventilation plate 16 is unidirectionally connected to the second support rod 15. The end of the second branch pipe 3 is connected to a second exhaust gas treatment device, and the second exhaust gas treatment device includes a second shell 17. A second catalytic component and a second filter component 21 are arranged in the second shell 17 in sequence, and a second exhaust fan 22 is connected to the end of the second shell 17. Then the exhaust gas enters the exhaust pipe 1, is diverted to the first branch pipe 2 and the second branch pipe 3, and then the first ventilation plate 6 and the second ventilation plate 16 are used to realize the one-way discharge of the exhaust gas, and then enter the first exhaust gas treatment device and the second exhaust gas treatment device respectively, catalyze the exhaust gas and filter impurities, thereby reducing the impact of the discharged gas on the environment. Then the airflow generated by the first exhaust fan 12 and the second exhaust fan 22 accelerates the discharge of the exhaust gas. There is a corner between the first branch pipe 2 and the second branch pipe 3 and the exhaust pipe 1, which can prevent the gas from flowing back during the discharge process. Then the stability of the air in the waste storage area is ensured, the accumulation of exhaust gas in the room is prevented, and the occurrence of accidents is reduced.
[0035] like Figure 2 and Figure 3 As shown, the first branch pipe 2 is connected to a first valve 23, and the second branch pipe 3 is connected to a second valve 24. The first valve 23 and the second valve 24 can be opened or closed according to work requirements. The exhaust pipe 1 is connected to the first branch pipe 2 and the second branch pipe 3 through the third connecting flange 4. The first branch pipe 2 is connected to the first exhaust gas treatment device through the first connecting flange 25, and the end of the second branch pipe 3 is connected to the second exhaust gas treatment device through the second connecting flange 26. The high temperature, high humidity and corrosion of the exhaust gas make the reliability of the entire device unable to be guaranteed, and the first exhaust gas treatment device and the second exhaust gas treatment device can be replaced through the first connecting flange 25 and the second connecting flange 26, and the first branch pipe 2, the second branch pipe 3 and the exhaust pipe 1 can be replaced through the third connecting flange 4, which ensures the smooth progress of the exhaust gas discharge work.
[0036] like Figure 3 and Figure 4As shown, the end of the first exhaust gas treatment device is connected to the first air monitoring device 27 and the first alarm 28, and the first air monitoring device 27 is electrically connected to the first alarm 28; the end of the second exhaust gas treatment device is connected to the second air monitoring device 29 and the second alarm 30, and the second air monitoring device 29 is electrically connected to the second alarm 30. When the exhaust gas is abnormal, the first air monitoring device 27 drives the first alarm 28 to work, and the second air monitoring device 29 drives the second alarm 30 to work, so that the position of the abnormal operation can be quickly locked, and then repaired or replaced, ensuring the stability of exhaust gas emissions.
[0037] The first catalytic component includes a first catalytic box 8, and first through holes 9 are staggered at both ends of the first catalytic box 8. A first catalyst 10 is placed in the first catalytic box 8, and the first catalyst 10 corresponds to the first through hole 9 at any end; the second catalytic component includes a second catalytic box 18, and second through holes 19 are staggered at both ends of the second catalytic box 18. A second catalyst 20 is placed in the second catalytic box 18, and the second catalyst 20 corresponds to the second through hole 19 at any end. Then, the exhaust gas enters the first catalytic box 8 and the second catalytic box 18 through the first through hole 9 and the second through hole 19 respectively, and then the first catalyst 10 and the second catalyst 20 can catalyze the harmful substances in the exhaust gas and convert them into harmless substances, and then discharge them through the first through hole 9 and the second through hole 19, which ensures that the exhaust gas is fully catalyzed, improves the purification efficiency of the exhaust gas, and reduces the negative impact of the exhaust gas on the environment.
[0038] like Figure 5 As shown, the first housing 7 is rotatably connected with a first cover door 31, and the first cover door 31 is provided with a first sealing strip 32; the second housing 17 is rotatably connected with a second cover door 33, and the second cover door 33 is provided with a second sealing strip 34. The first cover door 31 can open and close the first housing 7, and the second cover door 33 can open and close the second housing 17, and the first sealing strip 32 and the second sealing strip 34 ensure the sealing of the first housing 7 and the second housing 17, and ensure the reliability of exhaust gas discharge. The first catalytic component and the first filter component 11 are both slidably connected to the first housing 7; the second catalytic component and the second filter component 21 are both slidably connected to the second housing 17. Since the exhaust gas components generated by different types of hazardous wastes are quite different, the corresponding catalysts required are also different, and the first catalytic component and the second catalytic component can be replaced by a sliding connection, and the first filter component 11 and the second filter component 21 can be replaced according to the use conditions corresponding to the exhaust gas generated by different hazardous wastes, ensuring the smoothness of the airflow and the efficiency of filtering.
[0039] The working process of the utility model is:
[0040] First, the exhaust gas enters the exhaust pipe 1, and is diverted to the first branch pipe 2 and the second branch pipe 3, and then the exhaust gas is discharged in one direction through the first ventilation plate 6 and the second ventilation plate 16, and then enters the first exhaust gas treatment device and the second exhaust gas treatment device respectively, catalyzing the exhaust gas and filtering impurities, reducing the impact of the exhaust gas on the environment. Then, the airflow generated by the first exhaust fan 12 and the second exhaust fan 22 accelerates the exhaust gas discharge. The exhaust gas enters the first catalytic box 8 and the second catalytic box 18 through the first through hole 9 and the second through hole 19 in the first exhaust gas treatment device and the second exhaust gas treatment device respectively, and then the first catalyst 10 and the second catalyst 20 can catalyze the harmful substances in the exhaust gas and convert them into harmless substances, and then discharge them through the first through hole 9 and the second through hole 19, ensuring that the exhaust gas is fully catalyzed. And the first catalytic component and the second catalytic component can be replaced by a sliding connection, so that it can correspond to the exhaust gas generated by different hazardous wastes, and the first filter component 11 and the second filter component 21 can be replaced according to the usage.
Claims
1. An anti-backflow exhaust device, comprising an exhaust pipe (1), characterized in that: The end of the exhaust pipe (1) is connected to a first branch pipe (2) and a second branch pipe (3); a first support rod (5) is arranged in the first branch pipe, and a first ventilation plate (6) is unidirectionally rotatably connected to the first support rod (5); the end of the first branch pipe (2) is connected to a first exhaust gas treatment device, and the first exhaust gas treatment device comprises a first shell (7), and a first catalytic component and a first filter component (11) are arranged in sequence in the first shell (7); and a first exhaust fan (12) is connected to the end of the first shell (7); a second support rod (15) is arranged in the second branch pipe, and a second ventilation plate (16) is unidirectionally rotatably connected to the second support rod (15); the end of the second branch pipe (3) is connected to a second exhaust gas treatment device, and the second exhaust gas treatment device comprises a second shell (17), and a second catalytic component and a second filter component (21) are arranged in sequence in the second shell (17); and a second exhaust fan (22) is connected to the end of the second shell (17).
2. The anti-backflow exhaust device according to claim 1, characterized in that: The first branch pipe (2) is connected to a first valve (23), and the second branch pipe (3) is connected to a second valve (24).
3. The anti-backflow exhaust device according to claim 1, characterized in that: The exhaust pipe (1) is connected to the first branch pipe (2) and the second branch pipe (3) via a third connecting flange (4).
4. The anti-backflow exhaust device according to claim 1, characterized in that: The first branch pipe (2) is connected to the first exhaust gas treatment device via a first connecting flange (25), and the end of the second branch pipe (3) is connected to the second exhaust gas treatment device via a second connecting flange (26).
5. The anti-backflow exhaust device according to claim 1, characterized in that: A first air monitoring device (27) and a first alarm (28) are connected to the end of the first exhaust gas treatment device, and the first air monitoring device (27) is electrically connected to the first alarm (28); a second air monitoring device (29) and a second alarm (30) are connected to the end of the second exhaust gas treatment device, and the second air monitoring device (29) is electrically connected to the second alarm (30).
6. The anti-backflow exhaust device according to claim 1, characterized in that: A first cover door (31) is rotatably connected to the first shell (7), and a first sealing strip (32) is provided on the first cover door (31); a second cover door (33) is rotatably connected to the second shell (17), and a second sealing strip (34) is provided on the second cover door (33).
7. The anti-backflow exhaust device according to claim 1, characterized in that: The first catalytic component and the first filter component (11) are both slidably connected to the first shell (7); the second catalytic component and the second filter component (21) are both slidably connected to the second shell (17).
8. The anti-backflow exhaust device according to claim 1, characterized in that: The first catalytic component comprises a first catalytic box (8), first through holes (9) are staggered at both ends of the first catalytic box (8), a first catalyst (10) is placed in the first catalytic box (8), and the first catalyst (10) corresponds to the first through hole (9) at any one end; the second catalytic component comprises a second catalytic box (18), second through holes (19) are staggered at both ends of the second catalytic box (18), a second catalyst (20) is placed in the second catalytic box (18), and the second catalyst (20) corresponds to the second through hole (19) at any one end.