Adjustable RTO combustion chamber oxygen supply valve group structure
By introducing a rotating scraper structure into the adjustable RTO combustion chamber oxygen supply valve group, the problem of impurity blockage is solved, enabling convenient cleaning and stable airflow, and extending the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional adjustable RTO combustion chamber oxygen supply valve assembly structures are prone to clogging during the filtration of impurities and particulate matter in the air, leading to inconvenient cleaning, restricted airflow, and impact on combustion efficiency and equipment lifespan.
A structure including an oxygen inlet pipe, a filter cylinder, an oxygen delivery pipe, a filter screen, a material guide seat, and a scraper is designed. By rotating the outer cylinder, the scraper is made to fit with the filter screen, thereby automatically scraping away impurities and avoiding blockage. The counterweight plate maintains airflow.
It enables convenient cleaning of impurities without removing the filter cartridge, ensuring normal airflow, preventing leaks, and extending equipment life.
Smart Images

Figure CN224080212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oxygen supply valve assembly technology, specifically to the structure of an adjustable RTO combustion chamber oxygen supply valve assembly. Background Technology
[0002] An adjustable RTO combustor is a highly efficient waste gas treatment device, primarily used for treating organic waste gas and volatile organic compounds. The working principle of an adjustable RTO combustor includes: Waste gas preheating: The low-temperature organic waste gas to be treated is introduced into the ceramic accumulator in the regenerator by an induced draft fan for preheating. Combustion process: The preheated waste gas enters the combustion chamber, where, under the supplementary combustion heating effect of the burner, the waste gas temperature rises to the set oxidation temperature. At this temperature, the organic waste gas rapidly decomposes into carbon dioxide and water. Heat recovery: The high-temperature gas after combustion leaves the oxidation chamber and enters the cooling zone, transferring heat to the accumulator. In the adjustable RTO combustor, the oxygen supply valve assembly structure can regulate the amount of air entering the combustion chamber, ensuring a stable combustion process.
[0003] Traditional adjustable RTO combustion chamber oxygen supply valve assemblies typically consist of pipes and valves. The pipes deliver air to the adjustable RTO combustion chamber for combustion, while the valves control the oxygen flow and shut-off. Since air contains impurities and particulate matter, this not only reduces combustion efficiency but also damages the equipment. To address these issues, some adjustable RTO combustion chamber oxygen supply valve assemblies incorporate a filter structure, such as a filter screen, within the pipes. As air passes through the filter, impurities and particulate matter are separated, ensuring combustion efficiency and preventing equipment damage. However, because the filter structure is located inside the pipes, impurities and particulate matter can clog it, making cleaning difficult and restricting airflow. Therefore, an adjustable RTO combustion chamber oxygen supply valve assembly structure is proposed. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an adjustable RTO combustion chamber oxygen supply valve assembly structure to solve the aforementioned technical problems that not only make cleaning inconvenient but also restrict air circulation.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable RTO combustion chamber oxygen supply valve assembly structure, comprising:
[0008] An oxygen inlet pipe and a valve installed on the surface of the oxygen inlet pipe, wherein the outlet end of the oxygen inlet pipe is connected to a filter cylinder, and an oxygen delivery pipe is connected to the outlet end of the filter cylinder, and a flow meter is installed on the surface of the oxygen delivery pipe.
[0009] A filter screen is set in the inner cavity of the filter cylinder, and the lower part of the inner cavity of the filter screen is evenly provided with arc-shaped through holes, and an outer cylinder is rotatably connected to the surface of the filter cylinder.
[0010] The material guide seat is located on the upper surface of the outer cylinder, and its position corresponds to the arc-shaped through hole. A discharge hole is formed on the upper surface of the material guide seat, and a scraper is slidably connected to the inner cavity of the discharge hole. A counterweight plate is installed on the lower surface of the outer cylinder. By connecting the air inlet end of the oxygen inlet pipe to the air outlet end of the external fan, and then connecting the air outlet end of the oxygen guide pipe to the air inlet end of the adjustable RTO combustion chamber, the valve is first opened, allowing the fan to deliver outside air along the oxygen inlet pipe into the interior of the filter cylinder. The filter screen intercepts impurities in the flowing air, allowing the filtered air to enter the adjustable RTO combustion chamber along the oxygen guide pipe to maintain combustion. When impurities accumulate to a certain level on the filter screen, the outer cylinder is rotated on the filter cylinder to align the material guide seat with the arc-shaped through hole, and a counterweight plate is installed on the material guide seat. The scraper moves upward along the discharge hole and the arc-shaped through hole to fit against the surface of the filter screen. The scraper moves on the surface of the filter screen to scrape off impurities. The impurities roll into the guide seat along the arc-shaped through hole and are then discharged to the outside of the guide seat through the discharge hole. On the one hand, the impurities on the filter screen can be cleaned and discharged without removing the filter cylinder, which is not only convenient for cleaning but also ensures normal air flow. On the other hand, the outer cylinder, under the action of the counterweight plate, positions the guide seat above the filter cylinder, thereby preventing air leakage during air flow.
[0011] Preferably, the oxygen inlet pipe has a first connecting flange installed at its inlet end, and the oxygen delivery pipe has a second connecting flange at its outlet end. The inlet end of the oxygen inlet pipe is connected to the outlet end of the external fan through the first connecting flange, and the outlet end of the oxygen delivery pipe is connected to the inlet end of the adjustable RTO combustion chamber through the second connecting flange, thereby ensuring the connection stability of the oxygen inlet pipe and the oxygen delivery pipe.
[0012] Preferably, the surfaces of the first and second connecting flanges are evenly provided with connecting screw holes, and connecting bolts are evenly connected to the inner cavities of the connecting screw holes. The first and second connecting flanges are connected to the corresponding structures through the connecting screw holes and connecting bolts.
[0013] Preferably, a receiving box is installed directly below the filter cylinder, and a side connecting rod connects the receiving box to the filter cylinder. The receiving box is fixed directly below the filter cylinder by the side connecting rod, thereby receiving impurities discharged from inside the filter cylinder and preventing impurities from spreading to the outside and causing further pollution.
[0014] Preferably, the receiving box and the discharge hole are positioned in a corresponding manner, and a guide plate is installed inside the receiving box. When impurities enter the receiving box and fall onto the upper part of the guide plate, the impurities roll along the upper part of the guide plate from the upper end to the lower end.
[0015] Preferably, the receiving box has a discharge transverse hole on its front side, and the discharge transverse hole corresponds to the bottom end of the upper surface of the guide plate. When impurities roll along the bottom end of the guide plate, they can be discharged outward through the discharge transverse hole for collection, making it easier to discharge and centrally process the impurities.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides an adjustable RTO combustion chamber oxygen supply valve assembly structure, which has the following beneficial effects:
[0018] This adjustable RTO combustion chamber oxygen supply valve assembly structure, by rotating the outer cylinder on the filter cylinder, aligns the guide seat with the arc-shaped through hole. The scraper on the guide seat moves upwards along the discharge hole and arc-shaped through hole to adhere to the filter screen surface. The scraper moves on the filter screen surface to scrape away impurities, which then roll into the guide seat along the arc-shaped through hole and are discharged through the discharge hole. This allows for cleaning and removal of impurities from the filter screen without removing the filter cylinder, facilitating cleaning and ensuring normal airflow. Furthermore, the outer cylinder, under the action of the counterweight plate, positions the guide seat above the filter cylinder, thus preventing air leakage during airflow. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall right-side view of the present invention;
[0021] Figure 3 This is a schematic diagram of the left side of the cross-sectional structure of the filter cylinder and the outer cylinder of this utility model;
[0022] Figure 4 This is a schematic diagram of the receiving box of this utility model from the right side.
[0023] In the diagram: 1. Oxygen inlet pipe; 2. Valve; 3. Filter cylinder; 4. Filter screen; 5. Arc-shaped through hole; 6. Outer cylinder; 7. Material guide seat; 8. Discharge hole; 9. Scraper; 10. Counterweight plate; 11. Oxygen inlet pipe; 12. Flow meter; 13. First connecting flange; 14. Connecting bolt; 15. Second connecting flange; 16. Connecting bolt hole; 17. Receiving box; 18. Side connecting rod; 19. Material guide plate; 20. Discharge horizontal hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] This utility model provides a technical solution: an adjustable RTO combustion chamber oxygen supply valve assembly structure, including: (See details) Figure 1 , Figure 2 The oxygen inlet pipe 1 and the valve 2 installed on the surface of the oxygen inlet pipe 1 are connected to the outlet end of the oxygen inlet pipe 1 and the outlet end of the filter cylinder 3 is connected to the outlet end of the filter cylinder 3 and the oxygen delivery pipe 11 is connected to the outlet end of the filter cylinder 3 and the flow meter 12 is installed on the surface of the oxygen delivery pipe 11.
[0026] Please see Figure 3 The filter screen plate 4 is set in the inner cavity of the filter cylinder 3, and the lower part of the inner cavity of the filter screen plate 4 is evenly provided with arc-shaped through holes 5, and an outer cylinder 6 is rotatably connected to the surface of the filter cylinder 3.
[0027] A guide seat 7 is located on the upper surface of the outer cylinder 6, and the guide seat 7 corresponds to the position of the arc-shaped through hole 5. A discharge hole 8 is opened on the upper surface of the guide seat 7, and a scraper 9 is slidably connected to the inner cavity of the discharge hole 8. A counterweight plate 10 is installed on the lower surface of the outer cylinder 6. By connecting the air inlet end of the oxygen inlet pipe 1 to the air outlet end of the external fan, and then connecting the air outlet end of the oxygen guide pipe 11 to the air inlet end of the adjustable RTO combustion chamber, the valve 2 is first opened, so that the fan delivers the outside air along the oxygen inlet pipe 1 to the inside of the filter cylinder 3. The filter screen 4 intercepts impurities in the flowing air, so that the filtered air enters the adjustable RTO combustion chamber along the oxygen guide pipe 11 to maintain combustion. When the impurities on the filter screen 4 accumulate to a certain extent, the outer cylinder 6 is rotated on the filter cylinder 3 so that the guide seat 7 corresponds to the position of the arc-shaped through hole 5, and the material guide seat 7 is then used to... The scraper 9 moves upward along the discharge hole 8 and the arc-shaped through hole 5 to fit against the surface of the filter screen plate 4, so that the scraper 9 moves on the surface of the filter screen plate 4 and performs the scraping operation of impurities. The impurities enter the guide seat 7 along the arc-shaped through hole 5 and roll, and then are discharged to the outside of the guide seat 7 through the discharge hole 8. On the one hand, the impurities on the filter screen plate 4 can be cleaned and discharged without removing the filter cylinder 3, which not only facilitates cleaning, but also ensures normal air flow. On the other hand, under the action of the counterweight plate 10, the outer cylinder 6 makes the guide seat 7 located above the filter cylinder 3, thereby avoiding air leakage during air flow.
[0028] Please see Figure 1The oxygen inlet pipe 1 has a first connecting flange 13 installed at its inlet end, and the oxygen delivery pipe 11 has a second connecting flange 15 installed at its outlet end. The inlet end of the oxygen inlet pipe 1 is connected to the outlet end of the external fan through the first connecting flange 13, and the outlet end of the oxygen delivery pipe 11 is connected to the inlet end of the adjustable RTO combustion chamber through the second connecting flange 15, thereby ensuring the connection stability of the oxygen inlet pipe 1 and the oxygen delivery pipe 11. Connecting screw holes 16 are evenly provided on the surfaces of the first connecting flange 13 and the second connecting flange 15, and connecting bolts 14 are evenly connected to the inner cavities of the connecting screw holes 16. The first connecting flange 13 and the second connecting flange 15 are connected to their respective structures through the connecting screw holes 16 and the connecting bolts 14.
[0029] Please see Figure 4 A receiving box 17 is installed directly below the filter cylinder 3, and a side connecting rod 18 connects the receiving box 17 to the filter cylinder 3. The receiving box 17 is fixed directly below the filter cylinder 3 by the side connecting rod 18, thereby receiving impurities discharged from inside the filter cylinder 3 and preventing impurities from spreading to the outside and causing pollution. The receiving box 17 corresponds to the discharge hole 8, and a guide plate 19 is installed inside the receiving box 17. When impurities enter the receiving box 17 and fall onto the upper part of the guide plate 19, they roll from the upper end of the guide plate 19 to the lower end. A discharge horizontal hole 20 is opened on the front of the receiving box 17, and the discharge horizontal hole 20 corresponds to the lower end of the upper surface of the guide plate 19. When impurities roll along the lower end of the guide plate 19, they can be discharged and collected through the discharge horizontal hole 20, making it easy to discharge and centrally process the impurities.
[0030] This scheme involves connecting the air inlet of the oxygen inlet pipe 1 to the air outlet of an external fan, and then connecting the air outlet of the oxygen guide pipe 11 to the air inlet of the adjustable RTO combustion chamber. First, valve 2 is opened, allowing the fan to deliver outside air along the oxygen inlet pipe 1 into the interior of the filter cylinder 3. The filter screen 4 intercepts impurities in the flowing air, allowing the filtered air to enter the adjustable RTO combustion chamber along the oxygen guide pipe 11 to maintain combustion. When impurities accumulate to a certain level on the filter screen 4, the outer cylinder 6 is rotated on the filter cylinder 3 to align the guide seat 7 with the arc-shaped through hole 5. Then, the scraper 9 is moved upwards along the discharge hole 8 and the arc-shaped through hole 5 on the guide seat 7, aligning with the filter screen. The plate 4 is attached to the surface, so that the scraper 9 moves on the surface of the filter plate 4 and performs the scraping operation of impurities. The impurities enter the guide seat 7 along the arc-shaped through hole 5 and roll, and then are discharged to the outside of the guide seat 7 through the discharge hole 8. The air inlet end of the oxygen inlet pipe 1 is connected to the air outlet end of the external fan through the first connecting flange 13. The air outlet end of the oxygen guide pipe 11 is connected to the air inlet end of the adjustable RTO combustion chamber through the second connecting flange 15. The receiving box 17 is fixed directly below the filter cylinder 3 by the side connecting rod 18. When the impurities enter the receiving box 17 and fall to the upper part of the guide plate 19, the impurities roll along the bottom end of the guide plate 19, so that the impurities can be discharged to the outside through the discharge horizontal hole 20 for collection.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An adjustable RTO combustion chamber oxygen supply valve group structure, characterized in that, Including: The oxygen pipe (1) and the valve (2) are arranged on the surface of the oxygen pipe (1), and the outlet end of the oxygen pipe (1) is communicated with the filter cylinder (3), and the outlet end of the filter cylinder (3) is communicated with the oxygen guide pipe (11), and the surface of the oxygen guide pipe (11) is additionally provided with the flow meter (12); The filter screen plate (4) is arranged in the inner cavity of the filter cylinder (3), and the inner cavity of the filter screen plate (4) is uniformly provided with arc-shaped through holes (5) in the lower part, and the outer cylinder (6) is rotatably connected to the surface of the filter cylinder (3); The material guide seat (7) is arranged on the upper surface of the outer cylinder (6), and the material guide seat (7) corresponds to the position of the arc-shaped through hole (5), and the upper surface of the material guide seat (7) is provided with a discharge hole (8), and the inner cavity of the discharge hole (8) is slidably connected with a scraper (9), and the lower surface of the outer cylinder (6) is provided with a counterweight plate (10).
2. The adjustable RTO combustion chamber oxygen supply valve group structure according to claim 1, characterized in that: The first connecting flange (13) is arranged on the inlet end of the oxygen pipe (1), and the second connecting flange (15) is additionally arranged on the outlet end of the oxygen guide pipe (11).
3. The adjustable RTO combustion chamber oxygen supply valve group structure according to claim 2, characterized in that: The surface of the first connecting flange (13) and the second connecting flange (15) is uniformly provided with connecting screw holes (16), and the inner cavity of the connecting screw holes (16) is uniformly connected with connecting bolts (14).
4. The adjustable RTO combustion chamber oxygen supply valve group structure according to claim 1, characterized in that: The filter cylinder (3) is additionally provided with a receiving box (17) below, and the receiving box (17) and the filter cylinder (3) are connected with a side connecting rod (18).
5. The adjustable RTO combustion chamber oxygen supply valve group structure according to claim 4, characterized in that: The receiving box (17) corresponds to the position relationship of the discharge hole (8), and the inner cavity of the receiving box (17) is provided with a material guide plate (19).
6. The adjustable RTO combustion chamber oxygen supply valve group structure according to claim 5, characterized in that: The front surface of the receiving box (17) is provided with a discharge horizontal hole (20), and the discharge horizontal hole (20) corresponds to the position relationship of the bottom end of the upper surface of the material guide plate (19).