A rotary thermal storage oxidation system

Abstract

The embodiment of the present application relates to a rotary thermal storage oxidation system, including a main body, which is respectively provided with an airflow area, a heat exchange area and a combustion area from bottom to top; an air intake and exhaust module, which is located in the airflow area; a heat exchange module, which is located in the heat exchange area; a burner, which is arranged on the main body and located in the combustion area; a first sealed air nozzle, which is arranged on the main body, and the jet end faces the side wall of the heat exchange module; a second sealed air nozzle, which is arranged on the main body, and the jet end faces the side wall of the heat exchange module; a third sealed air nozzle, which is arranged on the main body, and the jet end faces the side wall of the air intake and exhaust module; a first air supply unit, whose input end is connected to the air intake part of the air intake and exhaust module, and whose output end is connected to the first sealed air nozzle; and a second air supply unit, whose input end is connected to the exhaust part of the air intake and exhaust module, and whose output end is connected to the second sealed air nozzle and the third sealed air nozzle. The rotary thermal storage oxidation system disclosed in the embodiment of the present application uses air sealing to improve the sealing between the various parts.

Description

Technical Field

[0001] The present application relates to the technical field of gas pollution control, and in particular to a rotary thermal storage oxidation system. Background Art

[0002] The rotary thermal storage oxidation system has the advantages of small footprint and small gas impact, but is limited by unfavorable factors such as high temperature and rotation. How to ensure the sealing between the various parts becomes a problem that needs to be solved urgently. Summary of the invention

[0003] The embodiment of the present application provides a rotary thermal storage oxidation system, which uses an air seal to improve the sealing between various parts.

[0004] The above-mentioned purpose of the embodiment of the present application is achieved through the following technical solutions:

[0005] The present application embodiment provides a rotary thermal storage oxidation system, comprising:

[0006] The main body is provided with an airflow zone, a heat exchange zone and a combustion zone from bottom to top;

[0007] The intake and exhaust modules are located in the airflow area;

[0008] The heat exchange module is located in the heat exchange area;

[0009] a burner, disposed on the main body and located in the combustion zone;

[0010] A first sealing air nozzle is provided on the main body, and an air jet end of the first sealing air nozzle faces the side wall of the heat exchange module;

[0011] A second sealing air nozzle is provided on the main body, and an air jet end of the second sealing air nozzle faces the side wall of the heat exchange module;

[0012] A third sealing air nozzle is arranged on the main body, and an air jet end of the third sealing air nozzle faces the side wall of the air inlet and exhaust module;

[0013] A first air supply unit, the input end of which is connected to the air intake part of the air intake and exhaust module, and the output end of which is connected to the first sealing air nozzle; and

[0014] A second air supply unit, the input end of which is connected to the exhaust part of the air intake and exhaust module, and the output end of which is connected to the second sealing air nozzle and the third sealing air nozzle;

[0015] The first sealing air nozzle, the second sealing air nozzle and the third sealing air nozzle are evenly arranged on the main body around the axis of the main body.

[0016] In a possible implementation of the embodiment of the present application, the air intake and exhaust module includes:

[0017] an air inlet chamber, located in the air flow area;

[0018] An air intake duct, one end of which enters the main body and is connected to the air intake chamber;

[0019] an exhaust chamber located within the airflow region; and

[0020] The exhaust pipe has one end entering the main body and connected to the exhaust chamber.

[0021] In a possible implementation of the embodiment of the present application, the heat exchange module includes:

[0022] A heat exchange device, located in the heat exchange zone;

[0023] The driving device is located outside the main body, one end of which extends into the main body and is connected to the heat exchange device, and is configured to drive the heat exchange device to rotate.

[0024] In a possible implementation of the embodiment of the present application, the first sealing gas nozzle includes:

[0025] a main body portion, fixed to the main body; and

[0026] an airway having a first end extending through the main body portion;

[0027] wherein a first end of the airway is located inside the body and a second end of the airway is located outside the body;

[0028] In the direction of the gas flow rate in the airway, the flow area of ​​the airway tends to increase;

[0029] The structures of the second sealing air nozzle and the third sealing air nozzle are the same as that of the first sealing air nozzle.

[0030] In a possible implementation of the embodiment of the present application, two sides of the first sealing gas nozzle abut against adjacent first sealing gas nozzles;

[0031] Two sides of the second sealing gas nozzle abut against the adjacent second sealing gas nozzle;

[0032] Two sides of the third sealing gas nozzle abut against adjacent third sealing gas nozzles.

[0033] In a possible implementation of the embodiment of the present application, it is characterized in that the air injection end of the first sealing air nozzle is inclined toward a direction close to the combustion zone.

[0034] In a possible implementation of the embodiment of the present application, it is characterized in that the air injection end of the second sealing air nozzle is inclined in a direction away from the combustion zone.

[0035] In a possible implementation of the embodiment of the present application, it is characterized in that the air injection end of the third sealing air nozzle is inclined toward a direction close to the combustion zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of a rotary thermal storage oxidation system provided in an embodiment of the present application, and the arrows in the figure indicate the direction of airflow.

[0037] Figure 2 It is a structural schematic diagram of an intake and exhaust module provided in an embodiment of the present application.

[0038] Figure 3 It is a structural schematic diagram of a first sealing gas nozzle provided in an embodiment of the present application.

[0039] In the figure, 1. main body, 2. air intake and exhaust module, 3. heat exchange module, 11. air flow zone, 12. heat exchange zone, 13. combustion zone, 21. air intake chamber, 22. air intake pipe, 23. exhaust chamber, 24. exhaust pipe, 31. heat exchange device, 32. driving device, 41. burner, 51. first sealing air nozzle, 52. second sealing air nozzle, 53. third sealing air nozzle, 54. first air supply unit, 55. second air supply unit, 61. air guide ring, 62. guide pipe, 511. main body, 512. air duct. DETAILED DESCRIPTION

[0040] The technical solution in this application is further described in detail below in conjunction with the accompanying drawings.

[0041] In order to more clearly understand the technical solution in this application, the working principle of the rotary thermal storage oxidation system is briefly introduced first. The original thermal storage oxidation system uses multiple sets of pipes and valves to realize the alternating use of multiple heat exchange chambers. The rotary thermal storage oxidation system installs multiple heat exchange chambers on a rotating disc. During the working process, the multiple heat exchange chambers are always in a moving state, and the switching of heat exchange, heat storage and heat preservation is realized by changing the position.

[0042] See also Figure 1 , is a rotary thermal storage oxidation system disclosed in the embodiment of the present application. The system mainly consists of a main body 1, an air intake and exhaust module 2, a heat exchange module 3, a first sealed air nozzle 51, a second sealed air nozzle 52, a third sealed air nozzle 53, a first air supply unit 54 and a second air supply unit 55, etc. The main body 1 can be regarded as a shell, and air intake and exhaust, heat storage, heat exchange and combustion are all completed in the main body 1.

[0043] The space inside the main body 1 is divided into three zones from bottom to top, namely, an airflow zone 11, a heat exchange zone 12 and a combustion zone 13. The airflow zone 11 is used for the inflow of external gas and the discharge of burnt gas; the heat exchange zone 12 is used for the recovery of heat in the burnt gas and the pre-heating of the inflowing gas; and the combustion zone 13 is used for the full combustion of the pre-heated gas.

[0044] The air intake and exhaust module 2 is located in the airflow area 11, the heat exchange module 3 is located in the heat exchange area 12, and the burner 41 is fixedly mounted on the main body 1 and located in the combustion area 13. The specific structure will be further introduced below.

[0045] See also Figure 2 The air intake and exhaust module 2 is mainly composed of an air intake chamber 21, an air intake pipe 22, an exhaust chamber 23 and an exhaust pipe 24. The air intake chamber 21 and the exhaust chamber 23 are both located in the air flow area 11. One end of the air intake pipe 22 enters the main body 1 and is connected to the air intake chamber 21, and is responsible for introducing the gas to be processed into the air intake chamber 21. One end of the exhaust pipe 24 enters the main body 1 and is connected to the exhaust chamber 23, and is responsible for guiding the burned gas in the exhaust chamber 23 out of the main body 1.

[0046] See also Figure 1 The heat exchange module 3 mainly consists of two parts: a heat exchange device 31 and a driving device 32. The driving device 32 is located outside the main body 1, one end of which extends into the main body 1 and is connected to the heat exchange device 31, and is configured to drive the heat exchange device 31 to rotate. The heat exchange device 31 is fixedly mounted on one end of the driving device 32 extending into the main body 1 or is rotatably connected to the inner wall of the main body 1, and can rotate under the drive of the driving device 32.

[0047] In some possible implementations, the driving device 32 is composed of a rotating shaft, a motor, a reducer, etc. One end of the rotating shaft extends into the main body 1, and the motor and the reducer are located below the main body. Their function is to drive the rotating shaft to rotate. The output end of the motor is connected to the input end of the reducer, and the output end of the reducer transmits the power output by the motor to the rotating shaft through a coupling or gear transmission.

[0048] In some possible implementations, the heat exchange device 31 may be composed of a bracket and a heat storage body, wherein the bracket is fixedly mounted on a rotating shaft, and the heat storage body is placed on the bracket. When the rotating shaft rotates, the bracket and the heat storage body can be driven to rotate together.

[0049] See also Figure 1 The first sealing air nozzle 51, the second sealing air nozzle 52 and the third sealing air nozzle 53 are all fixedly installed on the main body 1. The jet ends of the three sealing air nozzles are all located in the main body 1. Their function is to form three gas barriers for sealing. The following introduces the three sealing air nozzles in combination with their actual structures and functions.

[0050] There are multiple first sealing gas nozzles 51 , which are arranged in a circular array on the main body 1 around the axis of the main body 1 , and function to form a first gas seal, forming a gas barrier between the heat exchange zone 12 and the combustion zone 13 .

[0051] It should be understood that the combustion zone 13 carries out an oxidation reaction, which releases a large amount of heat during the reaction, while the heat exchange zone 12 mainly carries out heat storage and heating. These two zones cannot interfere with each other. The heat generated during the combustion process should be concentrated in the heat storage zone, and then the heat exchange device 31 transfers this part of heat to the heat exchange zone.

[0052] The gas source required by the first sealing gas nozzle 51 is provided by the first gas supply unit 54. The first gas supply unit 54 is fixedly installed on the main body 1. Its input end is connected to the air intake part of the air intake and exhaust module 2, and its output end is connected to the first sealing gas nozzle 51. Its function is to provide the gas that needs to be burned to the first sealing gas nozzle 51 so that the first sealing gas nozzle 51 forms a first gas barrier.

[0053] Because most of the gas sprayed from the first sealing gas nozzle 51 will enter the combustion zone 13, it is necessary to use gas that has not been subjected to combustion treatment. If burned gas is used, it may cause flameout due to the reduction of the concentration of volatile organic compounds in the combustion zone 13.

[0054] There are multiple second sealing gas nozzles 52 , which are arranged in a circular array on the main body 1 around the axis of the main body 1 , and function to form a second gas seal, forming a gas barrier between the first gas seal and the heat exchange area 12 .

[0055] It should be understood that part of the gas ejected from the first sealing gas nozzle 51 may enter the heat exchange area 12. Obviously, this is not allowed because it will cause the exhaust gas to fail to meet the standard. The purpose of using the second sealing gas nozzle 52 to form a gas barrier is to prevent the gas ejected from the first sealing gas nozzle 51 from entering the heat exchange area 12.

[0056] There are multiple third sealing air nozzles 53 , which are arranged in a circular array on the main body 1 around the axis of the main body 1 , and function to form a third air seal, forming a gas barrier between the second air seal and the air intake and exhaust module 2 .

[0057] The gas used by the second sealing air nozzle 52 and the third sealing air nozzle 53 is provided by the second air supply unit 55 , the input end of the second air supply unit 55 is connected to the exhaust part of the air intake and exhaust module 2 , and the output end is connected to the second sealing air nozzle 52 and the third sealing air nozzle 53 .

[0058] It should be understood that the gas ejected from the second sealing gas nozzle 52 and the third sealing gas nozzle 53 will not enter the combustion zone 13 for combustion, and therefore combustion-treated gas should be used.

[0059] See also Figure 3As a specific embodiment of the rotary thermal storage oxidation system provided in the application, the first sealing air nozzle 51 is composed of a main body 511 and an air channel 512 located in the main body 511. The first end of the air channel 512 is located in the main body 1, and the second end of the air channel 512 is located outside the main body 1.

[0060] In the direction of the gas flow rate in the air channel 512 , the flow area of ​​the air channel 512 tends to increase, that is, the coverage of the gas sprayed from the first sealing gas nozzles 51 tends to expand, which helps to reduce the blank area between adjacent first sealing gas nozzles 51 .

[0061] The structures of the second sealing air nozzle 52 and the third sealing air nozzle 53 are the same as that of the first sealing air nozzle 51 , and are not described in detail herein.

[0062] Furthermore, both sides of the first sealing gas nozzle 51 abut against the adjacent first sealing gas nozzle 51 , that is, for the first sealing gas nozzle 51 distributed on the main body 1 , the first sealing gas nozzle 51 will first form a physical seal and then form a gas barrier with the help of the ejected gas.

[0063] Furthermore, both sides of the second sealing gas nozzle 52 abut against the adjacent second sealing gas nozzle 52, that is, for the second sealing gas nozzle 52 distributed on the main body 1, the second sealing gas nozzle 52 will first form a physical seal, and then form a gas barrier with the help of the ejected gas.

[0064] Furthermore, two sides of the third sealing gas nozzle 53 abut against the adjacent third sealing gas nozzle 53, that is, for the third sealing gas nozzle 53 distributed on the main body 1, the third sealing gas nozzle 53 will first form a physical seal, and then form a gas barrier with the help of the ejected gas.

[0065] As a specific embodiment of the rotary thermal storage oxidation system provided in the application, the jet end of the first sealed gas nozzle 51 is inclined toward the direction close to the combustion zone 13, so that the gas ejected from the first sealed gas nozzle 51 can enter the combustion zone 13 for combustion, thereby achieving full utilization of the gas.

[0066] As a specific embodiment of the rotary thermal storage oxidation system provided in the application, the jet end of the second sealed gas nozzle 52 is inclined away from the combustion zone 13. At this time, the gas ejected from the second sealed gas nozzle 52 will not affect the gas barrier formed by the first sealed gas nozzle 51.

[0067] As a specific embodiment of the rotary thermal storage oxidation system provided in the application, the jet end of the third sealing gas nozzle 53 is inclined toward the direction close to the combustion zone 13, and its function is to form a third gas seal to intercept the gas that may escape between the intake and exhaust module 2 and the heat exchange module 3.

[0068] It should be understood that as the gas between the intake and exhaust module 2 and the heat exchange module 3 escapes, the air pressure between the second gas seal and the third gas seal will gradually increase. When the air pressure is level, no more gas will escape between the intake and exhaust module 2 and the heat exchange module 3.

[0069] See also Figure 1 The gas ejected from the second sealing gas nozzle 52 and the third sealing gas nozzle 53 is discharged from the main body 1 through the pipeline and then sent into the exhaust pipeline 24.

[0070] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotary thermal storage oxidation system, characterized in that: include: The main body (1) is provided with an airflow area (11), a heat exchange area (12) and a combustion area (13) from bottom to top; An air intake and exhaust module (2) located in the airflow area (11); A heat exchange module (3) located in the heat exchange area (12); A burner (41) is disposed on the main body (1) and is located in the combustion zone (13); A first sealing air nozzle (51) is provided on the main body (1), and an air jet end of the first sealing air nozzle (51) faces the side wall of the heat exchange module (3); A second sealing air nozzle (52) is provided on the main body (1), and an air jet end of the second sealing air nozzle (52) faces the side wall of the heat exchange module (3); A third sealing air nozzle (53) is arranged on the main body (1), and an air jet end of the third sealing air nozzle (53) faces the side wall of the air intake and exhaust module (2); A first air supply unit (54), the input end of which is connected to the air intake part of the air intake and exhaust module (2), and the output end of which is connected to the first sealing air nozzle (51); as well as A second air supply unit (55), the input end of which is connected to the exhaust part of the air intake and exhaust module (2), and the output end of which is connected to the second sealing air nozzle (52) and the third sealing air nozzle (53); The first sealing air nozzle (51), the second sealing air nozzle (52) and the third sealing air nozzle (53) are uniformly arranged on the main body (1) around the axis of the main body (1); The jet end of the first sealing air nozzle (51) is inclined toward the combustion zone (13); The jet end of the second sealing air nozzle (52) is inclined in a direction away from the combustion zone (13); The jetting end of the third sealing air nozzle (53) is inclined in a direction close to the combustion zone (13); In a direction from top to bottom, a first sealing air nozzle (51), a second sealing air nozzle (52) and a third sealing air nozzle (53) are sequentially arranged on the main body (1).

2. A rotary thermal storage oxidation system according to claim 1, characterized in that: The air intake and exhaust module (2) comprises: An air inlet chamber (21) located in the air flow area (11); An air intake pipe (22), one end of which enters the main body (1) and is connected to the air intake chamber (21); an exhaust chamber (23) located in the air flow region (11); and An exhaust pipe (24) has one end entering the main body (1) and connected to the exhaust chamber (23).

3. A rotary thermal storage oxidation system according to claim 1, characterized in that: The heat exchange module (3) comprises: A heat exchange device (31) is located in the heat exchange area (12); The driving device (32) is located outside the main body (1), one end of which extends into the main body (1) and is connected to the heat exchange device (31), and is configured to drive the heat exchange device (31) to rotate.

4. A rotary thermal storage oxidation system according to claim 1, characterized in that: The first sealing gas nozzle (51) comprises: A main body portion (511) fixed to the main body (1); and An airway (512), a first end of which passes through the main body portion (511); Wherein, the first end of the airway (512) is located inside the main body (1), and the second end of the airway (512) is located outside the main body (1); In the direction of the gas flow rate in the air channel (512), the flow area of ​​the air channel (512) tends to increase; The structures of the second sealing air nozzle (52) and the third sealing air nozzle (53) are the same as the structure of the first sealing air nozzle (51).

5. A rotary thermal storage oxidation system according to claim 4, characterized in that: Two sides of the first sealing gas nozzle (51) abut against adjacent first sealing gas nozzles (51); Two sides of the second sealing gas nozzle (52) abut against adjacent second sealing gas nozzles (52); Two sides of the third sealing air nozzle (53) abut against adjacent third sealing air nozzles (53).

Images