Square rotary valve type RTO

Abstract

The square rotary valve type RTO comprises a combustion chamber, a heat storage chamber, an external rotary distribution valve, an air outlet cavity and a supporting frame which are sequentially arranged from top to bottom, the appearance of the combustion chamber and the appearance of the heat storage chamber tend to be square, a plurality of partition plates are arranged in the heat storage chamber, the partition plates are arranged in a criss-cross mode, and the partition plates are connected with the external rotary distribution valve. The external rotary distribution valve comprises a gas distribution chamber, a valve element and a gas communicating pipe, the heat storage chamber is communicated with the external rotary distribution valve through the gas communicating pipe, the gas distribution chamber wraps the outer side of the valve element, the heat storage chamber is evenly divided into n square heat storage areas by the partition plates, heat storage bodies are arranged in the square heat storage areas, and the heat storage bodies are arranged in the square heat storage areas. And an air outlet cavity is arranged below the external rotary distribution valve, and the air outlet cavity is communicated with the external rotary distribution valve. The square rotary valve type RTO solves the problems that an existing rotary RTO device is limited in site, the utilization rate of the internal space of the RTO is low, and transportation, installation and maintenance are inconvenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of organic waste gas oxidation and incineration devices, specifically relating to a square rotary valve RTO. Background Technology

[0002] Regenerative thermal oxidizers, also known as regenerative thermal incinerators or simply "RTO", are generally divided into two types: rotary RTO and bed RTO. Rotary RTO is a new type of RTO that has been developed based on the structure of bed RTO through technological iteration.

[0003] Compared to bed-type RTOs, rotary RTOs not only have higher thermal efficiency and purification rates, but also feature stable operation and no airflow impact. Most rotary RTOs on the market are circular, but circular rotary RTOs have the following disadvantages:

[0004] 1) The RTO is circular in shape, making it difficult to utilize the surrounding space and unsuitable for situations where equipment space is limited;

[0005] 2) Most circular RTOs have a central cylinder in the center of the internal space, resulting in low utilization of the internal space of the RTO.

[0006] 3) The rotary distribution valve is built into the heat storage chamber, which makes transportation, installation and maintenance inconvenient. Utility Model Content

[0007] The purpose of this invention is to provide a square rotary valve RTO, which solves the problems of limited space, low utilization of internal space, and inconvenience in transportation, installation and maintenance of existing rotary RTO equipment.

[0008] The technical solution adopted in this utility model is a square rotary valve RTO, comprising a combustion chamber, a heat storage chamber, an external rotary distribution valve, an air outlet chamber, and a support frame arranged sequentially from top to bottom. Both the combustion chamber and the heat storage chamber are approximately square in shape. The heat storage chamber contains multiple partition plates arranged in a crisscross pattern. The external rotary distribution valve includes a gas distribution chamber, a valve core, and a gas connecting pipe. The heat storage chamber and the external rotary distribution valve are connected via the gas connecting pipe, with the gas distribution chamber enclosing the outside of the valve core. The heat storage chamber is evenly divided into n square heat storage zones by the partition plates. Heat storage bodies are arranged in a grid pattern within each square heat storage zone. An air outlet chamber is located below the external rotary distribution valve, and the two are connected.

[0009] The present invention is further characterized in that:

[0010] Furthermore, the gas distribution chamber is divided into two unconnected areas, upper and lower. The upper area is evenly divided into n regions by a partition, and the n regions are connected to n square heat storage areas through gas connecting pipes. The lower area is an air inlet chamber with an air inlet. The upper and lower areas are connected by a window on the valve core inside the gas distribution chamber. A window is also provided on the bottom surface of the valve core, and the air outlet chamber is connected to an external rotary distribution valve through this window.

[0011] Furthermore, the air outlet is located at the bottom of the external rotary distribution valve, and a purge pipe and an air outlet are provided on the side wall or bottom surface of the air outlet.

[0012] Furthermore, among the n square heat storage areas, one is a purging area, one is an isolation area, and the remaining n-2 areas are evenly divided into two major functional areas, namely the air intake area and the air outlet area. The purging area and the isolation area are located between the air intake area and the air outlet area.

[0013] Furthermore, n can take the values ​​6, 8, 10, or 12.

[0014] Furthermore, insulation material is provided on the inner walls of the combustion chamber and the heat storage chamber shells, and insulation material is also provided in the gap between the partition plate and the heat storage body.

[0015] Furthermore, the combustion chamber and the heat storage chamber are equipped with burners, temperature sensors, inspection doors, and high-temperature air outlets on their side walls or top surfaces.

[0016] Furthermore, the support frame is located on the outer periphery of the external rotary distribution valve and the air outlet cavity, and is connected to support the heat storage chamber.

[0017] The beneficial effects of this utility model are:

[0018] 1) The square rotary valve RTO of this utility model is square in shape, with high utilization of surrounding space, and is suitable for situations where equipment space is limited.

[0019] 2) The central cylinder is eliminated inside the heat storage chamber. The partition plates are connected in a crisscross pattern, which divides the heat storage chamber into n square heat storage areas. Heat storage bodies are set in the square heat storage areas. The heat storage bodies are arranged in a grid pattern, which is dense and has a high space utilization rate.

[0020] 3) The external rotary distribution valve is independent of the heat storage room and is only connected to the heat storage room through a gas connecting pipe, which makes transportation, installation and maintenance convenient and highly flexible. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the square rotary valve RTO of this utility model;

[0022] Figure 2This is a schematic diagram of the partition plate and heat storage zone of Embodiment 1 of the square rotary valve RTO of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the square rotary valve RTO of this utility model;

[0024] Figure 4 This is an elevation sectional view of Embodiment 2 of the square rotary valve RTO of this utility model;

[0025] Figure 5 This is an elevation sectional view of Embodiment 3 of the square rotary valve RTO of this utility model;

[0026] Figure 6 This is a schematic diagram of the partition plate and heat storage area of ​​Embodiment 3 of the square rotary valve RTO of this utility model;

[0027] Figure 7 This is an elevation sectional view of Embodiment 4 of the square rotary valve RTO of this utility model;

[0028] Figure 8 This is a schematic diagram of the partition plate and heat storage area of ​​Embodiment 4 of the square rotary valve RTO of this utility model;

[0029] Figure 9 This is an elevation sectional view of Embodiment 1 of the square rotary valve RTO of this utility model.

[0030] In the diagram, 1. Combustion chamber, 2. Heat storage chamber, 3. External rotary distribution valve, 4. Air outlet chamber, 5. Support frame, 6. Gas distribution chamber, 7. Valve core, 8. Gas connecting pipe, 9. Divider plate, 10. Heat storage body, 11. Air inlet chamber, 12. Air inlet, 13. Purge pipe, 14. Air outlet, 15. Purge area, 16. Isolation area, 17. Air inlet area, 18. Air outlet area, 19. Insulation material, 20. Burner, 21. Temperature sensor, 22. Inspection door, 23. High-temperature air outlet. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0032] The square rotary valve RTO includes, from top to bottom, a combustion chamber 1, a heat storage chamber 2, an external rotary distribution valve 3, an air outlet chamber 4, and a support frame 5. The inner walls of the combustion chamber 1 and the heat storage chamber 2 are provided with heat insulation material 19, and the gap between the partition plate 9 and the heat storage body 10 is also provided with heat insulation material 19. The side walls or top surfaces of the combustion chamber 1 and the heat storage chamber 2 are provided with a burner 20, a temperature sensor 21, an inspection door 22, and a high-temperature air outlet 23. The support frame 5 is located on the outer periphery of the external rotary distribution valve 3 and the air outlet chamber 4, and is connected to support the heat storage chamber 2.

[0033] The external rotary distribution valve 3 includes a gas distribution chamber 6, a valve core 7, and a gas connecting pipe 8. The gas distribution chamber 6 is wrapped around the outside of the valve core 7. The heat storage chamber 2 is connected to the external rotary distribution valve 3 through the gas connecting pipe 8. The combustion chamber 1 and the heat storage chamber 2 are roughly square in shape. Multiple partition plates 9 are provided inside the heat storage chamber 2. The partition plates 9 are arranged in a crisscross pattern. The heat storage chamber 2 is evenly divided into n square heat storage areas by the partition plates 9. Heat storage bodies 10 are provided in the square heat storage areas. The heat storage bodies 10 are arranged in a grid pattern.

[0034] The gas distribution chamber 6 is divided into two non-communicating areas, upper and lower. The upper area is evenly divided into n regions by a partition, and the n regions are connected to n square heat storage areas through gas connecting pipes 8. The lower area is the air inlet chamber 11, which is equipped with an air inlet 12. The upper and lower areas are connected by a window on the valve core 7 inside the gas distribution chamber 6. The bottom surface of the valve core 7 is also equipped with a window, and the air outlet chamber 4 is connected to the external rotary distribution valve 3 through this window. The air outlet chamber 4 is located at the bottom of the external rotary distribution valve 3, and the side wall or bottom surface of the air outlet chamber 4 is equipped with a purge pipe 13 and an air outlet 14.

[0035] Of the n square heat storage areas, one is a purging area 15, one is an isolation area 16, and the remaining n-2 areas are evenly divided into two major functional areas, namely an air intake area 17 and an air outlet area 18. The purging area 15 and the isolation area 16 are located between the air intake area 17 and the air outlet area 18. The value of n can be 6, 8, 10 or 12.

[0036] Example 1

[0037] A square rotary valve RTO includes, from top to bottom, a combustion chamber 1, a heat storage chamber 2, an external rotary distribution valve 3, an air outlet chamber 4, and a support frame 5. The external rotary distribution valve 3 includes a gas distribution chamber 6, a valve core 7, and a gas connecting pipe 8. The gas distribution chamber 6 is wrapped around the outside of the valve core 7. The heat storage chamber 2 is connected to the external rotary distribution valve 3 through the gas connecting pipe 8. The combustion chamber 1 and the heat storage chamber 2 are approximately square in shape. The heat storage chamber 2 is provided with multiple partition plates 9 arranged in a crisscross pattern. The heat storage chamber 2 is evenly divided into 8 square heat storage areas by the partition plates 9. Heat storage bodies 10 are provided in the square heat storage areas. The heat storage bodies 10 are arranged in a grid pattern and supported at the bottom by a heat storage body support structure.

[0038] The gas distribution chamber 6 is divided into two non-communicating areas. The upper area is further divided into eight sections by a partition, and these eight sections are connected to eight square heat storage zones via gas connecting pipes 8. The lower area is the air inlet chamber 11, which has an air inlet 12. The upper and lower areas are connected by a window on the valve core 7 inside the gas distribution chamber 6. The bottom surface of the valve core 7 also has a window, through which the air outlet chamber 4 is connected to the external rotary distribution valve 3.

[0039] The air outlet chamber 4 is located at the bottom of the external rotary distribution valve 3, and a purge pipe 13 and an air outlet 14 are provided on the side wall or bottom surface of the air outlet chamber 4. Figure 1 and Figure 9 As shown, the purging pipe 13 can be used to connect the positive pressure of the purging air to the external rotary distribution valve 3 for gas distribution, or it can be used to extract the untreated waste gas in the purging zone 15 under negative pressure and send it to the air inlet 12 for secondary treatment. The purging method is flexible and can be selected.

[0040] like Figure 2 As shown, among the eight square heat storage zones, one is the purging zone 15, one is the isolation zone 16, and the remaining six zones are evenly divided into two major functional areas: the air intake zone 17 and the air outlet zone 18. The purging zone 15 and the isolation zone 16 are located between the air intake zone 17 and the air outlet zone 18. The purging zone 15, the isolation zone 16, the air intake zone 17, and the air outlet zone 18 are not fixed. Each heat storage zone goes through the "heat storage-heat release-purging" process in sequence, repeating continuously.

[0041] Insulation material 19 is provided on the inner wall of the combustion chamber 1 and the heat storage chamber 2, and insulation material 19 is also provided in the gap between the partition plate 9 and the heat storage body 10.

[0042] The combustion chamber 1 and the heat storage chamber 2 are equipped with a burner 20, a temperature sensor 21, an inspection door 22, and a high-temperature air outlet 23 on the side walls or top surface.

[0043] Working principle: The exhaust gas first enters the gas distribution chamber 6 of the external rotary distribution valve 3 through the air inlet. Under the guidance of the rotary distribution valve, it enters the intake zone 17 of the heat storage chamber 2 through the gas connecting pipe 8 connected to the upper area of ​​the gas distribution chamber 6. The heat released by the heat storage body 10 in the intake zone 17 preheats the exhaust gas. The preheated exhaust gas is then completely oxidized and decomposed in the combustion chamber 1. The energy required for oxidation and decomposition is provided by the burner 20. The purified gas after oxidation and decomposition enters the outlet zone 18 in the heat storage chamber. The heat storage body 10 in the outlet zone 18 absorbs the energy released by the purified gas to prepare for the next preheating. At the same time, the purified gas is cooled. Finally, the cooled purified gas re-enters the external rotary distribution valve 3 and enters the air outlet chamber 4 through the window on the bottom surface of the valve core 7. Finally, it is discharged from the air outlet 14 on the air outlet chamber 4. On this basis, when the temperature sensor 21 detects that the internal temperature of the RTO has reached the set danger value, the purified gas after oxidation and decomposition in the combustion chamber 1 is urgently discharged through the high-temperature air outlet 23.

[0044] Example 2

[0045] This utility model discloses a square rotary valve type RTO, the structure of which is as follows: Figure 3 , Figure 4As shown, it includes a combustion chamber 1, a heat storage chamber 2, an external rotary distribution valve 3, an air outlet chamber 4, and a support frame 5. The difference from Embodiment 1 above is that the RTO has 6 square heat storage zones and 6 upper regions in the gas distribution chamber.

[0046] Example 3

[0047] This utility model discloses a square rotary valve type RTO, the structure of which is as follows: Figure 5 , Figure 6 As shown, it includes a combustion chamber 1, a heat storage chamber 2, an external rotary distribution valve 3, an air outlet chamber 4, and a support frame 5. The difference from the above embodiment is that the RTO has 10 square heat storage zones and 10 upper areas in the gas distribution chamber.

[0048] Example 4

[0049] This utility model discloses a square rotary valve type RTO, the structure of which is as follows: Figure 7 , Figure 8 As shown, it includes a combustion chamber 1, a heat storage chamber 2, an external rotary distribution valve 3, an air outlet chamber 4, and a support frame 5. The difference from the above embodiment is that the RTO has 12 square heat storage zones and 12 upper areas in the gas distribution chamber.

[0050] Example 5

[0051] A square rotary valve RTO includes, from top to bottom, a combustion chamber 1, a heat storage chamber 2, an external rotary distribution valve 3, an air outlet chamber 4, and a support frame 5. The external rotary distribution valve 3 includes a gas distribution chamber 6, a valve core 7, and a gas connecting pipe 8. The gas distribution chamber 6 is wrapped around the outside of the valve core 7. The heat storage chamber 2 is connected to the external rotary distribution valve 3 through the gas connecting pipe 8. The combustion chamber 1 and the heat storage chamber 2 are approximately square in shape. The heat storage chamber 2 is provided with multiple partition plates 9 arranged in a crisscross pattern. The heat storage chamber 2 is evenly divided into 8 square heat storage areas by the partition plates 9. Heat storage bodies 10 are provided in the square heat storage areas. The heat storage bodies 10 are arranged in a grid pattern and supported at the bottom by a heat storage body support structure.

[0052] The gas distribution chamber 6 is divided into two non-communicating areas. The upper area is further divided into eight sections by a partition, and these eight sections are connected to eight square heat storage zones via gas connecting pipes 8. The lower area is the air inlet chamber 11, which has an air inlet 12. The upper and lower areas are connected by a window on the valve core 7 inside the gas distribution chamber 6. The bottom surface of the valve core 7 also has a window, through which the air outlet chamber 4 is connected to the external rotary distribution valve 3.

[0053] The air outlet chamber 4 is located at the bottom of the external rotary distribution valve 3. The side wall or bottom surface of the air outlet chamber 4 is provided with a purge pipe 13 and an air outlet 14. The purge pipe 13 can be used to connect the positive pressure of the purge air to the external rotary distribution valve 3 for gas distribution, or it can be used to extract the untreated waste gas in the purge zone 15 under negative pressure and send it to the air inlet 12 for secondary treatment. The purge method is flexible and can be selected.

[0054] Of the eight square heat storage zones, one is the purge zone 15, one is the isolation zone 16, and the remaining six zones are evenly divided into two major functional areas: the air intake zone 17 and the air outlet zone 18. The purge zone 15 and the isolation zone 16 are located between the air intake zone 17 and the air outlet zone 18. The purge zone 15, the isolation zone 16, the air intake zone 17, and the air outlet zone 18 are not fixed. Each heat storage zone goes through the "heat storage-heat release-purge" process in sequence, repeating continuously.

[0055] Insulation material 19 is provided on the inner wall of the combustion chamber 1 and the heat storage chamber 2, and insulation material 19 is also provided in the gap between the partition plate 9 and the heat storage body 10.

[0056] The combustion chamber 1 and the heat storage chamber 2 are equipped with a burner 20, a temperature sensor 21, an inspection door 22, and a high-temperature air outlet 23 on the side walls or top surface.

[0057] The support frame 5 is located on the outer periphery of the external rotary distribution valve 3 and the air outlet chamber 4, and is connected to support the heat storage chamber 2.

[0058] Example 6

[0059] A square rotary valve RTO includes, from top to bottom, a combustion chamber 1, a heat storage chamber 2, an external rotary distribution valve 3, an air outlet chamber 4, and a support frame 5. The external rotary distribution valve 3 includes a gas distribution chamber 6, a valve core 7, and a gas connecting pipe 8. The gas distribution chamber 6 is wrapped around the outside of the valve core 7. The heat storage chamber 2 is connected to the external rotary distribution valve 3 through the gas connecting pipe 8. The combustion chamber 1 and the heat storage chamber 2 are approximately square in shape. The heat storage chamber 2 is provided with multiple partition plates 9 arranged in a crisscross pattern. The heat storage chamber 2 is evenly divided into 12 square heat storage areas by the partition plates 9. Heat storage bodies 10 are provided in the square heat storage areas. The heat storage bodies 10 are arranged in a grid pattern and supported at the bottom by a heat storage body support structure.

[0060] The gas distribution chamber 6 is divided into two separate, upper and lower areas. The upper area is further divided into 12 smaller sections by a partition, each section connected to a square heat storage zone via a gas connecting pipe 8. The lower area is the air inlet chamber 11, which has an air inlet 12. The upper and lower areas are connected by a window on the valve core 7 inside the gas distribution chamber 6. A window is also provided on the bottom surface of the valve core 7, through which the air outlet chamber 4 connects to the external rotary distribution valve 3.

[0061] The air outlet chamber 4 is located at the bottom of the external rotary distribution valve 3. The side wall or bottom surface of the air outlet chamber 4 is provided with a purge pipe 13 and an air outlet 14. The purge pipe 13 can be used to connect the positive pressure of the purge air to the external rotary distribution valve 3 for gas distribution, or it can be used to extract the untreated waste gas in the purge zone 15 under negative pressure and send it to the air inlet 12 for secondary treatment. The purge method is flexible and can be selected.

[0062] Of the 12 square heat storage zones, one is the purge zone 15, one is the isolation zone 16, and the remaining 10 zones are evenly divided into two major functional areas: the air intake zone 17 and the air outlet zone 18. The purge zone 15 and the isolation zone 16 are located between the air intake zone 17 and the air outlet zone 18. The purge zone 15, the isolation zone 16, the air intake zone 17, and the air outlet zone 18 are not fixed. Each heat storage zone goes through the "heat storage-heat release-purge" process in sequence, repeating continuously.

[0063] Insulation material 19 is provided on the inner wall of the combustion chamber 1 and the heat storage chamber 2, and insulation material 19 is also provided in the gap between the partition plate 9 and the heat storage body 10.

[0064] The combustion chamber 1 and the heat storage chamber 2 are equipped with a burner 20, a temperature sensor 21, an inspection door 22, and a high-temperature air outlet 23 on the side walls or top surface.

[0065] The support frame 5 is located on the outer periphery of the external rotary distribution valve 3 and the air outlet chamber 4, and is connected to support the heat storage chamber 2.

[0066] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A square rotary valve type RTO, characterized in that, The device includes a combustion chamber (1), a heat storage chamber (2), an external rotary distribution valve (3), an air outlet chamber (4), and a support frame (5) arranged sequentially from top to bottom. Both the combustion chamber (1) and the heat storage chamber (2) are square in shape. The heat storage chamber (2) is equipped with multiple partition plates (9) arranged in a crisscross pattern. The external rotary distribution valve (3) includes a gas distribution chamber (6), a valve core (7), and a gas connecting pipe (8). The heat storage chamber (2) and the external rotary distribution valve (3) are connected through the gas connecting pipe (8). The gas distribution chamber (6) is wrapped around the valve core (7). The heat storage chamber (2) is evenly divided into n square heat storage areas by the partition plates (9). Heat storage bodies (10) are arranged in a grid pattern in the square heat storage areas. An air outlet chamber (4) is provided below the external rotary distribution valve (3), and the two are connected.

2. The square rotary valve type RTO according to claim 1, characterized in that, The gas distribution chamber (6) is divided into two non-connected areas. The upper area is divided into n areas by a partition. The n areas are connected to n square heat storage areas through gas connecting pipes (8). The lower area is an air inlet chamber (11). An air inlet (12) is provided on the air inlet chamber. The upper and lower areas are connected through a window on the valve core (7) inside the gas distribution chamber (6). A window is also provided on the bottom surface of the valve core (7). The air outlet chamber (4) is connected to the external rotary distribution valve (3) through this window.

3. The square rotary valve type RTO according to claim 2, characterized in that, The air outlet chamber (4) is located at the bottom of the external rotary distribution valve (3), and a purge pipe (13) and an air outlet (14) are provided on the side wall or bottom surface of the air outlet chamber (4).

4. The square rotary valve type RTO according to claim 1, characterized in that, Of the n square heat storage areas, one is a purging area (15), one is an isolation area (16), and the remaining n-2 areas are evenly divided into two major functional areas, namely an air intake area (17) and an air outlet area (18). The purging area (15) and the isolation area (16) are located between the air intake area (17) and the air outlet area (18).

5. The square rotary valve type RTO according to claim 4, characterized in that, The value of n can be 6, 8, 10 or 12.

6. The square rotary valve type RTO according to claim 1, characterized in that, The inner walls of the combustion chamber (1) and the heat storage chamber (2) are provided with heat insulation material (19), and the gap between the partition plate (9) and the heat storage body (10) is also provided with heat insulation material (19).

7. The square rotary valve type RTO according to claim 1, characterized in that, The combustion chamber (1) and the heat storage chamber (2) are provided with a burner (20), a temperature sensor (21), an inspection door (22), and a high-temperature air outlet (23) on the side walls or top surface.

8. The square rotary valve type RTO according to claim 1, characterized in that, The support frame (5) is located on the outer periphery of the external rotary distribution valve (3) and the air outlet cavity (4), and is connected to support the heat storage chamber (2).

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