Tightly-sealed gas inlet structure of waste gas incinerator
By introducing a sealing mechanism and a filtering self-cleaning system into the intake structure of the exhaust gas incinerator, the problem of exhaust gas leakage is solved, and the sealing and smoothness of the exhaust gas is achieved, ensuring that the exhaust gas enters the incinerator and burns smoothly.
Patent Information
- Application Number
- CN202422245596.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-12
AI Technical Summary
When the exhaust gas incinerator stops working, the exhaust gas is prone to overflow through the pumping air pipe, resulting in gas leakage.
A tightly sealed air intake structure is designed, including an intake box, an intake pipe and a sealing mechanism. The suction force of the second exhaust fan is used to control the opening and closing of the plug head, and combined with the filtration and self-cleaning functions of the first exhaust fan and the filtering shell to prevent exhaust gas leakage and keep the pipeline unobstructed.
Effectively prevent exhaust gas from being discharged from the intake pipe when the exhaust fan stops working, and at the same time, the gas flow is maintained through the filtration and self-cleaning functions to ensure that the exhaust gas is smoothly introduced into the incinerator for combustion.
Smart Images
Figure CN223121440U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste gas incinerators, in particular to an air inlet structure of a waste gas incinerator with tight sealing performance. Background Technique
[0002] With the development and production of industry, a large amount of harmful gases will be generated during the processing of many industrial products. These harmful gases discharged into the air will cause serious environmental pollution. With the development of technology, people begin to use waste gas incinerators to incinerate waste gas. The waste gas is introduced into the combustion chamber, mixed with fuel and then burned to remove harmful substances in the waste gas. Through the heat generated by fuel combustion, the temperature of the waste gas is raised to the reaction temperature, and the harmful substances in the waste gas are oxidized and decomposed. When the waste gas burns, an equal amount of air needs to be introduced to make the combustion more complete. However, when the exhaust fan for pumping air does not work, it is inevitable that waste gas will overflow outwards through the pipeline where air enters, resulting in gas leakage. Content of the Utility Model
[0003] The purpose of the utility model is to provide an air inlet structure of a waste gas incinerator with tight sealing performance, so as to solve the problem that waste gas will overflow outwards through the air intake pipeline when the exhaust fan stops working as mentioned in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical scheme: an air inlet structure of a waste gas incinerator with tight sealing performance, including an air inlet box. The side surface of the air inlet box is penetrated by a waste gas pipe, and one end of the waste gas pipe is located outside the air inlet box. A discharge pipe is penetrated through the end of the waste gas pipe close to the ground. A second exhaust fan is fixedly installed inside the air inlet box, and the outer surface of one side of the second exhaust fan is attached to the inner surface of the air inlet box. An air inlet pipe is penetrated through the outer surface of the air inlet box, and the air inlet pipe is designed with a bent opening. A sealing mechanism is arranged on the side of the air inlet pipe far from the waste gas pipe to prevent waste gas from running out of the air inlet box through the sealing mechanism.
[0005] Preferably, the sealing mechanism includes a control valve body. The control valve body is fixedly installed on the side of the air inlet pipe far from the discharge pipe. An inclined surface is arranged on the side of the air inlet pipe far from the second exhaust fan inside the air inlet pipe. An inner shell is threadedly installed inside the control valve body, and a plug is slidably installed inside the inner shell. One side of the plug located outside the inner shell is circularly designed. The circular shape on one side of the plug is inclined. One end of the plug is engaged with the control valve body. A spring is arranged between the plug and the inner shell. A baffle is slidably installed at the end of the control valve body far from the waste gas pipe.
[0006] Adopting the above technical scheme, when the second exhaust fan is not in use, waste gas cannot run out of the air inlet pipe. At the same time, the air flow during the air extraction of the second exhaust fan can be controlled through the baffle.
[0007] Preferably, a first exhaust fan is arranged inside the air inlet box, and the side surface of the first exhaust fan is penetrated by an exhaust pipe. One side of the first exhaust fan away from the exhaust pipe is penetrated and installed with an exhaust pipe.
[0008] By adopting the above technical solution, the exhaust gas in the exhaust pipe can be led out by the first exhaust fan and then discharged outward from the exhaust pipe.
[0009] Preferably, a filter housing is fixedly installed on one side of the air inlet box close to the first exhaust fan, and one end of the filter housing is connected to the exhaust pipe. An observation window is arranged at one end of the filter housing located outside the air inlet box, the observation window on the outer surface of the filter housing is strip-shaped, and an end cover is fixedly installed on the outer surface of one end of the filter housing located outside the air inlet box.
[0010] By adopting the above technical solution, impurities in the exhaust gas will fall below the filter housing after being filtered and washed. At the same time, the stored impurities and dust can be viewed through the observation window at the lower end of the filter housing. When a certain amount is reached, the end cover can be removed to take out the dust and impurities.
[0011] Preferably, a rotating mechanism is arranged inside the filter housing to filter and self-clean the dust and particles mixed in the exhaust gas through the rotating mechanism.
[0012] By adopting the above technical solution, the flow of the exhaust gas drives the fan blades to rotate, so that the brush body rotates accordingly to clean the filter screen and keep the pipeline unobstructed.
[0013] Preferably, the rotating mechanism includes a filter screen. The filter screen is snap-fitted inside the filter housing, and the filter screen is frustum-shaped. One end outer surface of the filter screen is attached to the outer surfaces of the filter housing and the exhaust pipe. A fan blade is rotatably installed inside the filter screen, and a brush body is arranged inside the filter screen. The brush body is fixedly installed on the outer surface of the fan blade, and the outer surfaces on both sides of the brush body are attached to the inner surface of the filter screen. The lower end of the filter screen is snap-fitted with the filter housing.
[0014] By adopting the above technical solution, the passing airflow will push the fan blades to rotate. The rotation of the fan blades drives the brush body to brush the filter screen, and the brushed dust will reach the bottom of the filter screen along the slope of the filter screen and then fall into the lower end of the filter housing, realizing automatic dust collection and cleaning.
[0015] Preferably, the outer surface of the air inlet box is penetrated by an air outlet pipe, and one end of the air outlet pipe is fixedly installed on the side surface of the filter housing. The side surface of the second exhaust fan is penetrated by an air exchange pipe, and one end of the air exchange pipe is connected to the air outlet pipe.
[0016] By adopting the above technical solution, air and exhaust gas are mixed through the air outlet pipe and then discharged into the incinerator.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The air intake structure of the waste gas incinerator with tight sealing:
[0018] 1. When the second exhaust fan works, the suction generated by the second exhaust fan will cause the external air to push the plug head open, allowing the air to enter the exhaust pipe and mix with the waste gas. When the second exhaust fan does not work, the spring will push the plug head back, causing the plug head to closely adhere to the control valve body, preventing the waste gas from being discharged from the intake pipe;
[0019] 2. When the first exhaust fan works, it will introduce the waste gas in the waste gas pipe into the intake box, and then enter the interior of the filter housing through the exhaust pipe. At this time, the filter screen in the filter housing will intercept the dust in the waste gas. Along with the airflow pushing the fan blades to rotate, the brush body will rotate to brush the filter screen, keeping the filter screen clean and ensuring the gas flow in the pipeline;
[0020] 3. Along with the gas passing through the filter screen, the fan blades rotate to drive the brush body to brush the filter screen. Along with the rotation of the brush body, the dust is brushed off. The dust will run along the slope of the filter screen to the bottom of the filter screen, and fall down along with the rotation of the brush body, entering the lower part of the filter housing. The dust amount stored in the filter housing can be judged by observing the observation window below the filter housing. When cleaning is required, the end cover can be removed to discharge the dust at the lower end of the filter housing. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic front sectional view structure diagram of the present utility model;
[0022] Figure 2 is a schematic partial sectional view structure diagram of the filter housing and the filter screen of the present utility model;
[0023] Figure 3 is a schematic side view structure diagram of the filter screen and the fan blades of the present utility model;
[0024] Figure 4 is the present utility model Figure 1 is a schematic enlarged structure diagram at position A in the present utility model;
[0025] Figure 5 is the present utility model Figure 2 is a schematic enlarged structure diagram at position B in the present utility model;
[0026] Figure 6 is a schematic three-dimensional sectional view structure diagram of the plug head and the inner housing of the present utility model.
[0027] In the figure: 1. Intake box; 2. First exhaust fan; 3. Waste gas pipe; 4. Discharge pipe; 5. Second exhaust fan; 6. Intake pipe; 7. Control valve body; 8. Inner housing; 9. Plug head; 10. Spring; 11. Baffle; 12. Filter housing; 13. End cover; 14. Filter screen; 15. Fan blades; 16. Brush body; 17. Vent pipe; 18. Exhaust pipe; 19. Exhaust pipe. Detailed implementation mode
[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0029] Please refer to Figures 1-6 , the present utility model provides a technical solution: an intake structure of an exhaust gas incinerator with tight sealing, including an intake box 1. The side surface of the intake box 1 is penetrated by an exhaust gas pipe 3, and one end of the exhaust gas pipe 3 is located outside the intake box 1. And a discharge pipe 4 is penetrated through the end of the exhaust gas pipe 3 close to the ground. An intake box 1 is fixedly installed inside the intake box 1, and the outer surface of one side of the second exhaust fan 5 is attached to the inner surface of the intake box 1. An intake pipe 6 is penetrated through the outer surface of the intake box 1, and the intake pipe 6 is designed with a bent opening.
[0030] Through the bent opening design of the intake pipe 6, liquid can be effectively prevented from entering the pipeline. At the same time, when the first exhaust fan 2 works, the gas in the exhaust gas pipe 3 will be drawn into the intake box 1 and discharged through the exhaust pipe 18. When the exhaust gas pipe 3 intakes gas, a small part of the dust will fall and enter the bottom of the exhaust gas pipe 3. Then, the dust in the exhaust gas pipe 3 can be discharged through the discharge pipe 4, reducing the filtration pressure on the subsequent filter screen 14.
[0031] A sealing mechanism is arranged on the side of the intake pipe 6 away from the exhaust gas pipe 3 to prevent exhaust gas from escaping from the intake box 1. The sealing mechanism includes a control valve body 7. The control valve body 7 is fixedly installed on the side of the intake pipe 6 away from the discharge pipe 4. And a slope is arranged on the side of the intake pipe 6 inside away from the second exhaust fan 5. An inner shell 8 is threadedly installed inside the control valve body 7, and a plug 9 is slidably installed inside the inner shell 8. And the side of the plug 9 located outside the inner shell 8 is circularly designed. The circular shape on one side of the plug 9 is inclined, and one end of the plug 9 is engaged with the control valve body 7. And a spring 10 is arranged between the plug 9 and the inner shell 8. A baffle 11 is slidably installed at one end of the control valve body 7 away from the exhaust gas pipe 3.
[0032] When the second exhaust fan 5 works, suction will be generated to draw external air into the intake box 1. The suction generated by the operation of the second exhaust fan 5 causes the plug 9 to retract into the inner shell 8, allowing air to enter and then be discharged through the air exchange pipe 17. At the same time, the intake air volume can be adjusted by adjusting the baffle 11. When the second exhaust fan 5 does not work, the spring 10 will push the plug 9 back, causing the plug 9 to closely adhere to the control valve body 7 to prevent the exhaust gas in the pipeline from being discharged through the intake pipe 6.
[0033] Inside the air inlet box 1, a first exhaust fan 2 is provided, and the side surface of the first exhaust fan 2 is penetrated by an exhaust pipe 3. On the side of the first exhaust fan 2 away from the exhaust pipe 3, an exhaust pipe 18 is installed through. On one side of the air inlet box 1 near the first exhaust fan 2, a filter housing 12 is fixedly installed, and one end of the filter housing 12 is connected to the exhaust pipe 18. At one end of the filter housing 12 located outside the air inlet box 1, an observation window is provided, and the observation window on the outer surface of the filter housing 12 is strip-shaped. And on the outer surface of the end of the filter housing 12 located outside the air inlet box 1, an end cover 13 is fixedly installed.
[0034] When the waste gas passes through the filter screen 14 and is filtered, along with the brushing of the filter screen 14 by the brush body 16, the dust brushed off will reach the bottom of the filter screen 14 along the slope of the filter screen 14, and fall into the lower end of the filter housing 12 along with the rotation of the brush body 16. The storage amount of dust can be judged by observing the observation window at the lower end of the filter housing 12. When cleaning is required, the end cover 13 can be removed to discharge the dust inside the end cover 13.
[0035] A rotating mechanism is provided inside the filter housing 12 to filter and self-clean the dust and particles mixed in the waste gas. The rotating mechanism includes a filter screen 14. The filter screen 14 is snap-fitted inside the filter housing 12, and the filter screen 14 is frustum-shaped. And the outer surface of one end of the filter screen 14 is attached to the outer surfaces of the filter housing 12 and the exhaust pipe 18. Inside the filter screen 14, a fan blade 15 is rotatably installed, and inside the filter screen 14, a brush body 16 is provided. The brush body 16 is fixedly installed on the outer surface of the fan blade 15, and the outer surfaces on both sides of the brush body 16 are attached to the inner surface of the filter screen 14. The lower end of the filter screen 14 is snap-fitted with the filter housing 12.
[0036] When the waste gas passes through the filter screen 14, the airflow will push the fan blade 15 to rotate. The rotation of the fan blade 15 drives the brush body 16 to rotate, so that the brush body 16 brushes the filter screen 14 to ensure the cleanliness of the filter screen 14 and keep the pipeline unobstructed.
[0037] The outer surface of the air inlet box 1 is penetrated by an air outlet pipe 19, and one end of the air outlet pipe 19 is fixedly installed on the side surface of the filter housing 12. The side surface of the second exhaust fan 5 is penetrated by an air exchange pipe 17, and one end of the air exchange pipe 17 is connected to the air outlet pipe 19.
[0038] When the first exhaust fan 2 and the second exhaust fan 5 are working, the gas will enter the air outlet pipe 19 for mixing, and then be discharged from the air inlet box 1 and enter the combustion furnace for combustion.
[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An intake structure for an exhaust gas incinerator with tight sealing, including an intake box (1). The side surface of the intake box (1) is penetrated by an exhaust gas pipe (3). One end of the exhaust gas pipe (3) is located outside the intake box (1), and a discharge pipe (4) is penetrated through the end of the exhaust gas pipe (3) close to the ground. A second exhaust fan (5) is fixedly installed inside the intake box (1), and one side outer surface of the second exhaust fan (5) is attached to the inner surface of the intake box (1). An intake pipe (6) is penetrated through the outer surface of the intake box (1), and the intake pipe (6) is designed with a bent opening. It is characterized in that: A sealing mechanism is provided on the side of the intake pipe (6) away from the exhaust pipe (3) to prevent exhaust gas from escaping from the intake box (1) through the sealing mechanism.
2. The intake structure of an exhaust gas incinerator with tight sealing according to claim 1, characterized in that: The sealing mechanism includes a control valve body (7). The control valve body (7) is fixedly installed on the side of the intake pipe (6) away from the discharge pipe (4). A slope is provided on the side of the intake pipe (6) away from the second exhaust fan (5). An inner shell (8) is threadedly installed inside the control valve body (7). A plug (9) is slidably installed inside the inner shell (8). The side of the plug (9) outside the inner shell (8) is circularly designed. The circular side of the plug (9) is inclined. One end of the plug (9) is engaged with the control valve body (7). A spring (10) is provided between the plug (9) and the inner shell (8). A baffle (11) is slidably installed at the end of the control valve body (7) away from the exhaust pipe (3).
3. The air inlet structure of an exhaust gas incinerator with tight sealing according to claim 1, characterized in that: A first exhaust fan (2) is provided inside the intake box (1). The side surface of the first exhaust fan (2) is penetrated by the exhaust pipe (3). An exhaust pipe (18) is installed through the side of the first exhaust fan (2) away from the exhaust pipe (3).
4. The intake structure of an exhaust gas incinerator with tight sealing according to claim 1, characterized in that: A filter housing (12) is fixedly installed on the side of the intake box (1) near the first exhaust fan (2). One end of the filter housing (12) is connected to the exhaust pipe (18). An observation window is provided at the end of the filter housing (12) outside the intake box (1). The observation window on the outer surface of the filter housing (12) is strip-shaped. An end cover (13) is fixedly installed on the outer surface of the end of the filter housing (12) outside the intake box (1).
5. The intake structure of an exhaust gas incinerator with tight sealing according to claim 4, characterized in that: A rotating mechanism is provided inside the filter housing (12) to filter and self-clean the dust and particles mixed in the exhaust gas through the rotating mechanism.
6. The intake structure of an exhaust gas incinerator with tight sealing according to claim 5, characterized in that: The rotating mechanism includes a filter screen (14). The filter screen (14) is snap-fitted inside the filter housing (12). The filter screen (14) is frustum-shaped. One end outer surface of the filter screen (14) is fitted with the outer surfaces of the filter housing (12) and the exhaust pipe (18). A fan blade (15) is rotatably installed inside the filter screen (14). A brush body (16) is provided inside the filter screen (14). The brush body (16) is fixedly installed on the outer surface of the fan blade (15). The outer surfaces on both sides of the brush body (16) are fitted with the inner surface of the filter screen (14). The lower end of the filter screen (14) is snap-fitted with the filter housing (12).
7. The air intake structure of an exhaust gas incinerator with tight sealing according to claim 1, characterized in that: The outer surface of the intake box (1) is penetrated by an outlet pipe (19). One end of the outlet pipe (19) is fixedly installed on the side surface of the filter housing (12). An air exchange pipe (17) is provided through the side surface of the second exhaust fan (5). One end of the air exchange pipe (17) is connected to the outlet pipe (19).