RTO (Regenerative Thermal Oxidation) incineration device suitable for various exhaust gas concentrations

Abstract

The invention discloses an RTO (Regenerative Thermal Oxidation) incineration device adapting to various waste gas concentration compositions, and relates to the technical field of incineration devices, the RTO incineration device comprises a split type heat accumulator structure, the heat accumulator structure comprises an upper heat accumulation block, a middle heat accumulation block and a lower heat accumulation block which are connected in a nested manner, the upper heat accumulation block is provided with a hexagonal hole channel, the middle heat accumulation block is provided with a circular hole channel, and the lower heat accumulation block is provided with a circular hole channel; the lower heat storage body is provided with a star-shaped hole channel, and different motions of the upper heat storage block and the lower heat storage block relative to the middle heat storage block can form a multi-layer heat storage structure or a thick-block-shaped round hole channel heat storage structure. In the multi-layer heat storage structure, waste gas is baffled through a lower star-shaped pore channel, a middle circular pore channel, an upper hexagonal pore channel and a layered gap to realize sufficient heat exchange; the thick block-shaped circular hole channel heat storage structure enables air flow to flow smoothly. High-heat waste gas after incineration is absorbed in a split mode and locked in a combined mode through a heat accumulator structure, the adaptability and treatment efficiency of the device are improved, energy consumption is reduced, and energy conservation and emission reduction of industrial waste gas treatment are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of incineration devices, in particular to an RTO incineration device adapted to various waste gas concentration compositions. Background Art

[0002] Thermal storage is a material or device that can store and release thermal energy. It is mainly used to regulate temperature, achieve efficient use of energy and save energy. Thermal storage has high heat capacity, high thermal conductivity and good thermal stability. It can release the stored heat when needed to regulate temperature.

[0003] A Chinese patent with authorization announcement number CN109297332B discloses a heat storage body structure, including a heat storage body body, wherein the heat storage body body includes a skeleton layer and a heat storage layer alternately stacked in a height direction; the skeleton layer includes a plurality of skeleton bricks made of sensible heat storage material, and the heat storage layer includes a plurality of heat storage bricks made of latent heat storage material, and the skeleton layer and the heat storage layer are alternately stacked in an interval manner. The heat storage bricks made of latent heat storage material have the characteristics of high energy storage density and good heat storage performance; the skeleton bricks made of sensible heat storage material have a large hardness, and as the skeleton structure of the heat storage body structure, they play a supporting role and can increase the stability of the heat storage body body; and the heat storage layer can also absorb heat from above and below, so that the overall heat storage capacity of the heat storage structure is better.

[0004] Most traditional incineration devices use a single-structure heat storage body, which cannot flexibly adjust the heat exchange method according to the change of exhaust gas concentration, resulting in low thermal efficiency when treating exhaust gases of different concentrations. When the exhaust gas concentration is low, due to insufficient heat exchange between the heat storage body and the exhaust gas, a large amount of waste heat cannot be effectively recovered, resulting in energy waste; when the exhaust gas concentration is high, the heat storage body may not be able to quickly absorb and store high heat, resulting in local overheating, thermal stress concentration and other problems, which not only affects the service life of the heat storage body, but also may reduce the stability and reliability of the incineration device, and even cause safety hazards.

[0005] In addition, the exhaust gas flow path and heat exchange process of traditional incineration devices are relatively fixed, making it difficult to achieve sufficient turbulence and mixing of the exhaust gas, so that the heat exchange is mainly concentrated on the surface contact part between the exhaust gas and the heat storage body, and the internal heat transfer efficiency is not high, further limiting the improvement of heat recovery efficiency. Moreover, due to the limitations of structural design, it is difficult to ensure the stability and continuity of the entire heat storage process when the exhaust gas temperature fluctuates greatly, and it is impossible to meet the strict requirements of modern industry for energy conservation, emission reduction, high efficiency and environmental protection.

[0006] To this end, the present invention proposes an RTO incineration device that is adaptable to various waste gas concentration compositions to solve the above problems. Summary of the invention

[0007] In view of the above problems in the prior art, the present invention is proposed.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: an RTO incineration device that is adaptable to a variety of exhaust gas concentration compositions, comprising a split heat storage body structure, wherein the heat storage body structure comprises an upper heat storage block, a middle heat storage block and a lower heat storage block that are nested and connected, the upper heat storage block is equipped with a hexagonal channel, the middle heat storage block is equipped with a circular channel, and the lower heat storage body is equipped with a star-shaped channel. The upper heat storage block and the lower heat storage block move away from the middle heat storage block to form a multi-layer heat storage structure with layered gaps, and the upper heat storage block and the lower heat storage block move toward the middle heat storage block to combine to form a thick block-shaped circular hole channel heat storage structure.

[0009] As a preferred solution of the RTO incineration device adapted to various exhaust gas concentrations of the present invention, the hexagonal channels of the upper heat storage block, the circular channels of the middle heat storage block and the star-shaped channels of the lower heat storage body are arranged in a one-to-one correspondence;

[0010] A plurality of hexagonal extension tubes are fixed to a side of the middle heat storage block facing the upper heat storage block, and a plurality of star-shaped extension tubes are fixed to a side of the middle heat storage block facing away from the upper heat storage block. The plurality of hexagonal extension tubes, the plurality of star-shaped extension tubes and the circular channels of the middle heat storage block are arranged in one-to-one correspondence.

[0011] As a preferred solution of the RTO incineration device adapted to various exhaust gas concentrations described in the present invention, the length of the hexagonal extension tube is consistent with the thickness of the upper heat storage block, and the length of the star-shaped extension tube is consistent with the thickness of the lower heat storage block.

[0012] As a preferred solution of the RTO incineration device adapted to various exhaust gas concentrations of the present invention, the inner circumference of the middle heat storage block is attached to the incineration tube, and the outer circumference is attached to the heat storage tube, the heat storage tube is sleeved on the outside of the incineration tube, and the upper heat storage block, the middle heat storage block and the lower heat storage block are arranged in the shell gap between the heat storage tube and the incineration tube;

[0013] Main purified air pipes for connecting the incineration cylinder and the heat storage cylinder chamber are provided at both upper and lower ends of the incineration cylinder, and exhaust gas inlet pipes and exhaust gas inlet pipes for introducing and exporting exhaust gas are provided on the outer surface of the heat storage cylinder, and switching valves are arranged on the main purified air pipe, the exhaust gas inlet pipe and the exhaust gas inlet pipe.

[0014] As a preferred solution of the RTO incineration device adapted to various exhaust gas concentrations of the present invention, the heat storage cylinder comprises a middle shell, the upper end surface flange of the middle shell is connected with an upper shell cover and a lower shell cover, openings are provided on the surfaces of the upper shell cover and the lower shell cover, and the two groups of main purified gas pipes are connected to the two openings on the surfaces of the upper shell cover and the lower shell cover;

[0015] The heat storage cylinder includes a heat storage chamber shell, which is composed of three sheet shells 211, which are connected to the middle shell by flanges, and both sides of the sheet shells are in contact with the middle shell 11. The shell gap formed between the sheet shell 211 and the middle shell is the heat storage chamber, and the upper heat storage block, the middle heat storage block and the lower heat storage block are arranged in the shell gap between the heat storage cylinder and the incineration cylinder.

[0016] As a preferred solution of the RTO incineration device adapted to various exhaust gas concentrations described in the present invention, the main purified gas pipe includes an integrated main through pipe and a branch pipe, the number of the branch pipes is three groups, and the main through pipe is connected to three heat storage chambers respectively through three groups of branch pipes.

[0017] As a preferred solution of the RTO incineration device adapted to various exhaust gas concentrations of the present invention, a driving structure is connected between the upper heat storage block and the lower heat storage block, and the driving structure includes two sets of elastic telescopic cylinders fixed on the middle shell, and graphite fiber rope 1 and graphite fiber rope 2 are respectively slid in the two sets of elastic telescopic cylinders, and the graphite fiber rope 1 passes through one end of the elastic telescopic cylinder and is connected to the surface of the upper heat storage block, and the graphite fiber rope 2 passes through one end of the elastic telescopic cylinder and is connected to the lower heat storage block;

[0018] A connecting plate is fixed to the other end of the graphite fiber rope 1 and the graphite fiber rope 2, and a linear motor is connected to the surface of the connecting plate. The linear motor drives the connecting plate to move to act on the graphite fiber rope 1 and the graphite fiber rope 2, pulling the upper heat storage block and the lower heat storage block to move in opposite directions.

[0019] As a preferred solution of the RTO incineration device adapted to various exhaust gas concentrations of the present invention, the heat storage chamber is further provided with a baffle structure, the baffle structure comprises a plurality of bracket bodies and two sets of blocking plates embedded in the surface of the middle shell, the blocking plates are arranged at both ends of the bracket bodies, the plurality of bracket bodies are connected as a whole through the blocking plates, and the surface of the blocking plates is provided with guide holes;

[0020] Guide plates are fixed to the surfaces of the two groups of sealing plates facing the middle heat storage block. The guide plates are arranged along the axial direction of the middle shell. There are multiple guide plates, and the multiple guide plates are inserted in the gaps between the guide holes.

[0021] As a preferred solution of the RTO incineration device adapted to various exhaust gas concentrations of the present invention, a positioning pin is fixed on the bracket body, a baffle is rotatably connected to the surface of the positioning pin, and the baffle is squeezed and deflected by the upper heat storage block or the lower heat storage block;

[0022] The baffle is composed of an upper half plate body and a lower half plate body, wherein the upper half plate body is fixed on the lower half plate body, and the lower half plate body and the lower half plate body form an angle.

[0023] As a preferred solution of the RTO incineration device adapted to various exhaust gas concentrations described in the present invention, the guide plate has a cavity inside, a lower magnetic plate is arranged at the bottom of the cavity, two traction ropes extend from the lower half plate toward one end of the guide plate, the lower half plate is connected to the upper magnetic plate through the traction ropes, the upper magnetic plate slides inside the guide plate and has opposite magnetic properties to the lower magnetic plate.

[0024] Beneficial effects of the present invention: The present invention is composed of an upper heat storage block, a middle heat storage block and a lower heat storage block which are nested and connected. The upper heat storage block is equipped with a hexagonal channel, the middle heat storage block is equipped with a circular channel, and the lower heat storage body is equipped with a star-shaped channel. Through different movement modes of the upper heat storage block and the lower heat storage block relative to the middle heat storage block, a multi-layer heat storage structure with layered gaps and a thick block-shaped circular hole channel heat storage structure can be formed respectively. Under the multi-layer heat storage structure, when the exhaust gas enters the star-shaped channel of the lower heat storage block, due to its complex shape, a strong edge effect and turbulence reaction are generated, so that the exhaust gas and the lower heat storage block have a more complete heat exchange, and the thermal response speed and recovery efficiency are improved; the circular channel of the middle heat storage block allows the exhaust gas to pass smoothly and evenly exchange heat, playing a buffering and balancing role; the hexagonal channel of the upper heat storage block can store and release heat, and combined with the deflection of the layered gap, it further enhances the utilization of the exhaust gas heat; and when a thick block-shaped circular hole channel heat storage structure is formed, the regular circular hole channel allows the airflow to flow smoothly, evenly and quickly in the entire heat storage block; in addition, the high-temperature exhaust gas after incineration enters the heat storage chamber, and the different channel structures of the split heat storage body structure are used to fully absorb the heat, and then the heat storage body structure is used to lock the heat, so as to achieve efficient heat exchange and heat recovery, improve the adaptability and treatment efficiency of the entire RTO incineration device to various exhaust gas concentration compositions, reduce energy consumption and operating costs, and play an important role in energy conservation and emission reduction of industrial waste gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the RTO incineration device adapted to various waste gas concentrations in the present invention;

[0027] Figure 2 It is a detailed view of the local structure of the heat storage chamber shell in the present invention;

[0028] Figure 3 For the present invention Figure 2 A magnified view of the structure of part A;

[0029] Figure 4 It is a local structural detail diagram of the heat storage body structure in the present invention;

[0030] Figure 5 For the present invention Figure 4 A magnified view of the structure of part B;

[0031] Figure 6 It is a schematic diagram of the overall structure of the baffle structure in the present invention;

[0032] Figure 7 It is an axonometric diagram of the overall structure of the baffle structure in the present invention;

[0033] Figure 8 It is a local structural detail diagram of the baffle in the present invention;

[0034] Fig. 9 Schematic diagram of the internal structure of the lower magnetic plate in the present invention;

[0035] Fig.10 This is a detailed diagram of the local structure of the middle heat storage block in the present invention.

[0036] The reference numerals are: 11, middle shell; 12, upper shell cover; 13, lower shell cover; 21, heat storage chamber shell; 211, sheet shell; 31, exhaust gas inlet pipe; 32, exhaust gas outlet pipe; 33, main purification gas pipe; 331, main through pipe; 332, diverter pipe; 41, baffle structure; 411, bracket body; 412, blocking plate; 413, guide plate; 4131, lower magnetic plate; 414, guide hole; 415, baffle; 4151, upper half plate; 4152, lower half plate; 4153, traction rope; 4154, upper magnetic plate; 416, positioning pin; 51, heat storage body structure; 52, lower heat storage block; 521, star-shaped channel; 53, middle heat storage block; 531, hexagonal extension cylinder; 532, star-shaped extension cylinder; 54, upper heat storage block; 541, hexagonal channel; 61, driving structure; 611, graphite fiber rope 1; 612, graphite fiber rope 2; 613, connecting plate; 614, linear motor; 615, elastic telescopic cylinder; 71, switching valve. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Reference Figure 1-Figure 10 As shown, it is the first embodiment of the present invention, which provides an RTO incineration device adapted to various exhaust gas concentration compositions, including a split heat storage body structure 51;

[0040] The heat storage body structure 51 includes an upper heat storage block 54, a middle heat storage block 53 and a lower heat storage block 52 which are nested and connected. The upper heat storage block 54 is equipped with a hexagonal channel 541, the middle heat storage block 53 is equipped with a circular channel, and the lower heat storage body 52 is equipped with a star-shaped channel 521. The upper heat storage block 54 and the lower heat storage block 52 move away from the middle heat storage block 53 to form a multi-layer heat storage structure with layered gaps. The upper heat storage block 54 and the lower heat storage block 52 move toward the middle heat storage block 53 to combine to form a thick block-shaped circular hole channel heat storage structure.

[0041] Specifically, when the upper heat storage block 54 and the lower heat storage block 52 move away from the middle heat storage block 53 to separate and form a multi-layer heat storage structure with layered gaps; the star-shaped channel 521 structure of the lower heat storage block 52 has a complex shape and more corners, and the exhaust gas enters the star-shaped channel 521 to produce a strong edge effect and turbulence reaction. The star-shaped channel 521 structure of the lower heat storage block 52 causes vortices and secondary flows to be generated at each corner of the star-shaped channel 521 when the exhaust gas passes through. The strong turbulence phenomenon can make the heat exchange between the exhaust gas and the lower heat storage block 52 more sufficient. By increasing the turbulence of the exhaust gas, the heat can be quickly transferred from the lower heat storage block 52 to the exhaust gas, thereby improving the thermal response speed and heat recovery efficiency of the entire heat storage system. The circular channel structure of the middle heat storage block 53 makes the resistance of the exhaust gas passing through relatively small. In the split state, the circular channel structure of the middle heat storage block 53 enables the exhaust gas and the middle heat storage block 53 to have a certain heat exchange efficiency, and enables the exhaust gas to pass through the middle heat storage block 53 quickly and smoothly. Due to the symmetry of the circular channel structure of the middle heat storage block 53, the body can form a relatively uniform temperature distribution when passing through, avoiding the phenomenon of local overheating or overcooling. This uniform temperature distribution enables the heat to be more evenly transferred between the heat storage body and the fluid, reducing heat loss and thermal stress concentration, and playing a role in buffering and balancing the exhaust gas. The hexagonal channel 541 structure of the upper heat storage block 54 is stable. The hexagonal channel 541 can effectively perform preliminary storage and release of heat by utilizing its large specific surface area and relatively regular shape.

[0042] Specifically, when the upper heat storage block 54 and the lower heat storage block 52 move toward the middle heat storage block 53 to combine to form a thick block-shaped circular hole channel heat storage structure: they are both used for one channel, that is, the circular hole channel, and the combined circular hole channels form a unified and stable channel structure, allowing the airflow to flow smoothly, evenly and quickly in the entire heat storage block.

[0043] Reference Fig.10 As shown, the hexagonal channels 541 of the upper heat storage block 54, the circular channels of the middle heat storage block 53 and the star-shaped channels 521 of the lower heat storage body 52 are arranged in a one-to-one correspondence;

[0044] A plurality of hexagonal extension tubes 531 are fixed to one side of the middle heat storage block 53 facing the upper heat storage block 54, and a plurality of star-shaped extension tubes 532 are fixed to one side of the middle heat storage block 53 facing away from the upper heat storage block 54. The plurality of hexagonal extension tubes 531, the plurality of star-shaped extension tubes 532 and the circular channels of the middle heat storage block 53 are arranged in one-to-one correspondence.

[0045] Reference Fig.10 As shown, the length of the hexagonal extension tube 531 is consistent with the thickness of the upper heat storage block 54 , and the length of the star-shaped extension tube 532 is consistent with the thickness of the lower heat storage block 52 .

[0046] Specifically, when the upper heat storage block 54 and the lower heat storage block 52 move toward the middle heat storage block 53 to merge, the hexagonal extension cylinder 531 is just inserted into the hexagonal channel 541 of the upper heat storage block 54 and is flush with the top surface of the upper heat storage block 54, and the star-shaped extension cylinder 532 is inserted into the star-shaped channel 521 of the lower heat storage block 52 and is flush with the bottom surface of the lower heat storage block 52.

[0047] Reference Figure 1-Figure 4 As shown, the inner circumference of the middle heat storage block 53 is attached with a combustion cylinder, and the outer circumference is attached with a heat storage cylinder, the heat storage cylinder is sleeved on the outside of the combustion cylinder, and the upper heat storage block 54, the middle heat storage block 53 and the lower heat storage block 52 are arranged in the shell gap between the heat storage cylinder and the combustion cylinder;

[0048] Main purified air pipes 33 for connecting the incineration cylinder and the heat storage cylinder chamber are provided at both upper and lower ends of the incineration cylinder, and waste gas inlet pipes 31 and waste gas outlet pipes 32 for introducing and exporting waste gas are provided on the outer surface of the heat storage cylinder, and switching valves 71 are arranged on the main purified air pipe 33, the waste gas inlet pipe 31 and the waste gas outlet pipe 32.

[0049] Reference Figure 1-Figure 4 As shown, the heat storage cylinder includes a middle shell 11, the upper end surface flange of the middle shell 11 is connected to an upper shell cover 12 and a lower shell cover 13, the surfaces of the upper shell cover 12 and the lower shell cover 13 are provided with openings, and two sets of main purification air pipes 33 are connected to the two openings on the surfaces of the upper shell cover 12 and the lower shell cover 13;

[0050] like Figure 4-Figure 5 As shown, the heat storage cylinder includes a heat storage chamber shell 21, which is composed of three sheet shells 211. The three sheet shells 211 are connected to the middle shell 11 through flanges. Both sides of the sheet shells 211 are in contact with the middle shell 11. The shell gap formed between the sheet shells 211 and the middle shell 11 is the heat storage chamber. The upper heat storage block 54, the middle heat storage block 53 and the lower heat storage block 52 are arranged in the shell gap between the heat storage cylinder and the incineration cylinder.

[0051] Specifically, three heat storage chambers are formed between the three sheet shells 211 and the middle shell 11. The three heat storage chambers are independent of each other and are not connected to each other. There are three groups of exhaust gas inlet pipes 31 and exhaust gas outlet pipes 32. The three groups of exhaust gas inlet pipes 31 and exhaust gas outlet pipes 32 correspond to the three heat storage chambers respectively.

[0052] The main purified gas pipe 33 includes an integrated main through pipe 331 and a branch pipe 332. The number of the branch pipes 332 is three. The main through pipe 331 is connected to the three heat storage chambers through three groups of branch pipes 332. The heat storage cylinder exchanges gas with the three heat storage chambers of the incineration cylinder through the main purified gas pipe 33, and the three groups of branch pipes 332 are provided with switching valves 71.

[0053] like Figure 6-Figure 9 As shown, a set of driving structures 61 are connected between the upper heat storage block 54 and the lower heat storage block 52. The driving structure 61 includes two sets of elastic telescopic cylinders 615 fixed on the middle shell 11. Graphite fiber rope 1 611 and graphite fiber rope 2 612 slide in the two sets of elastic telescopic cylinders 615 respectively. The graphite fiber rope 1 611 passes through one end of the elastic telescopic cylinder 615 and is connected to the surface of the upper heat storage block 54. The graphite fiber rope 2 612 passes through one end of the elastic telescopic cylinder 615 and is connected to the lower heat storage block 52.

[0054] A connecting plate 613 is fixed to the other end of the graphite fiber rope 1 611 and the graphite fiber rope 2 612, and a linear motor 614 is connected to the surface of the connecting plate 613. The linear motor 614 drives the connecting plate 613 to move to act on the graphite fiber rope 1 611 and the graphite fiber rope 2 612, pulling the upper heat storage block 54 and the lower heat storage block 52 to move in opposite directions.

[0055] Exemplarily, the middle heat storage block 53 is assembled on the middle shell 11 , and the position of the middle heat storage block 53 relative to the middle shell 11 remains unchanged.

[0056] Exemplarily, the linear motor 614 is fixed on the lower shell cover 13, the graphite fiber rope 2 612 passes through the middle shell 11 and the lower shell cover 13 and is connected to the connecting plate 613, the graphite fiber rope 1 611 passes through the middle shell 11 and the upper shell cover 12, then bends and passes through the gap between the two adjacent groups of sheet shells 211, and finally passes through the middle shell 11 and the lower shell cover 13 and is connected to the connecting plate 613.

[0057] When the linear motor 614 drives the connecting plate 613 to move away from the middle shell 11, the connecting plate 613 moves away from the connecting plate 613 synchronously, and the connecting plate 613 pulls the graphite fiber rope 1 611 and the graphite fiber rope 2 612, and the elastic telescopic cylinder 615 contracts the upper heat storage block 54 and the lower heat storage block 52 to move in opposite directions.

[0058] When the linear motor 614 drives the connecting plate 613 to move toward the middle shell 11, the connecting plate 613 moves synchronously toward the connecting plate 613, the graphite fiber rope 1 611 and the graphite fiber rope 2 612 slide in opposite directions, the elastic telescopic cylinder 615 is relatively extended, and the upper heat storage block 54 and the lower heat storage block 52 move toward each other.

[0059] Specifically, during the process of the upper heat storage block 54 and the lower heat storage block 52 moving toward or away from each other, the elastic telescopic tube 615 is relatively extended and is always in a compressed state, and the difference lies in the degree of compression of the elastic telescopic tube 615.

[0060] like Figure 6-Figure 9As shown, a baffle structure 41 is further provided in the heat storage chamber, and the baffle structure 41 includes a plurality of bracket bodies 411 and two sets of blocking plates 412 embedded in the surface of the middle shell 11. The blocking plates 412 are arranged at both ends of the bracket bodies 411, and the plurality of bracket bodies 411 are connected as a whole through the blocking plates 412. A guide hole 414 is opened on the surface of the blocking plates 412;

[0061] Guide plates 413 are fixed to the surfaces of the two groups of sealing plates 412 facing the middle heat storage block 53 . The guide plates 413 are arranged along the axial direction of the middle shell 11 . There are multiple guide plates 413 , which are inserted into the gaps between the guide holes 414 .

[0062] Exemplarily, the baffle structures 41 are symmetrically arranged about the horizontal center plane of the middle heat storage block 53 .

[0063] Exemplarily, the guide plate 413 is clamped between the exhaust gas inlet pipe 31 and the exhaust gas outlet pipe 32, so that the exhaust gas entering from the exhaust gas inlet pipe 31 is introduced by the sealing plate 412 and the guide hole 414 to the area where the upper heat storage block 54, the middle heat storage block 53 and the lower heat storage block 52 are located for preheating, so that the exhaust gas discharged from the exhaust gas outlet pipe 32 is cooled through the area where the upper heat storage block 54, the middle heat storage block 53 and the lower heat storage block 52 are located.

[0064] Exemplarily, the shape of the sealing plate 412 is consistent with the cross-sectional shape of the heat storage chamber, and the exhaust gas introduced through the sealing plate 412 is divided into multiple airflows through the guide holes 414, and the multiple airflows are introduced into the areas where the upper heat storage block 54, the middle heat storage block 53 and the lower heat storage block 52 are located.

[0065] like Figure 6-Figure 9 As shown, a positioning pin 416 is fixed on the bracket body 411, and a baffle 415 is rotatably connected to the surface of the positioning pin 416. The baffle 415 is squeezed and deflected by the upper heat storage block 54 or the lower heat storage block 52;

[0066] The baffle 415 is composed of an upper plate body 4151 and a lower plate body 4152 . The upper plate body 4151 is fixed on the lower plate body 4152 , and the lower plate body 4152 forms an angle with the lower plate body 4152 .

[0067] Exemplarily, the top of the baffle 415 is deflected at a certain angle, the purpose of which is to ensure that under the pressure of the upper heat storage block 54 or the lower heat storage block 52, all the baffles 415 are deflected in the same direction.

[0068] like Figure 6-Figure 9As shown, the guide plate 413 has a cavity inside, and a lower magnetic plate 4131 is arranged at the bottom of the cavity. Two traction ropes 4153 extend from the lower half plate body 4152 toward one end of the guide plate 413. The lower half plate body 4152 is connected to the upper magnetic plate 4154 through the traction ropes 4153. The upper magnetic plate 4154 slides inside the guide plate 413 and has opposite magnetism to the lower magnetic plate 4131.

[0069] Exemplarily, the positioning pin 416 is disposed at an end of the baffle 415 .

[0070] Specifically, when the upper heat storage block or the lower heat storage block moves close to the baffle structure 41, the baffle is squeezed and deflected, the lower half plate body 4152 and the lower half plate body 4152 are deflected, and the lower half plate body drives the upper magnetic plate 4154 to slide in the cavity of the guide plate 413 through the traction rope. Since the upper magnetic plate 4154 and the lower magnetic plate 4131 have opposite magnetic properties, the magnetic force generated between the two will counteract the pulling force of the traction rope, so that the baffle can maintain a certain stability during the squeezing and deflection process, avoiding excessive swinging or disordered flipping of the baffle due to the flow of exhaust gas, thereby ensuring that the flow path of the exhaust gas can be deflected at a certain angle.

[0071] When the baffle plate is not squeezed and deflected, the magnetic force generated between the upper magnetic plate 4154 and the lower magnetic plate 4131 will drive the upper magnetic plate 4154 to move toward the lower magnetic plate 4131, and the upper magnetic plate 4154 will drive the baffle plate to reset through the traction rope.

[0072] Working principle: When the exhaust gas concentration is low, the linear motor 614 in the driving structure 61 is started, driving the connecting plate 613 to move away from the middle shell 11, and the connecting plate 613 pulls the graphite fiber rope 1 611 and the graphite fiber rope 2 612, and then pulls the upper heat storage block 54 and the lower heat storage block 52 to move in opposite directions, so that the heat storage body structure 51 forms a multi-layer heat storage structure with layered gaps. At the same time, as the upper heat storage block 54 and the lower heat storage block 52 move in opposite directions, the state of the baffle 415 being squeezed and deflected by the upper heat storage block 54 and the lower heat storage block 52 changes.

[0073] The exhaust gas enters from the exhaust gas inlet pipe 31, and is first diverted by the sealing plate 412 and the guide hole 414 of the baffle structure 41. Since the baffle plate 415 is deflected at a certain angle at this time, the diverted exhaust gas enters the star-shaped channel 521 of the lower heat storage block 52 at a certain angle under the guidance of the baffle plate 415. The diverted exhaust gas enters the star-shaped channel 521 of the lower heat storage block 52 at a certain angle under the guidance of the baffle plate 415.

[0074] When the exhaust gas enters the star-shaped channel 521 at this inclination angle, it will first impact a specific corner area near the entrance of the star-shaped channel 521. Since the airflow direction forms a certain angle with the tangent direction of the corner of the star-shaped channel 521, the flow velocity of the exhaust gas in this area changes rapidly, part of the kinetic energy is converted into thermal energy, and strong pressure fluctuations are generated, thereby inducing a larger vortex. This vortex will suck the exhaust gas to the vicinity of the star-shaped channel 521, greatly increasing the contact time and area between the exhaust gas and the star-shaped channel 521. Secondly, since the star-shaped channel 521 has more corners, the exhaust gas will continuously repeat similar energy conversion and vortex formation processes at the corners of each star-shaped channel 521 during the process of flowing along the star-shaped channel 521; the vortices formed by the exhaust gas at each corner interact with the secondary flow, greatly enhancing the mixing degree and turbulence intensity of the fluid. This high-intensity turbulence enables the exhaust gas molecules to more fully exchange heat with the inner wall of the star-shaped channel 521, and the heat can be quickly and efficiently transferred from the lower heat storage block 52 to the exhaust gas, which significantly improves the heat exchange efficiency and thermal response speed, fully taps the waste heat in the exhaust gas, and lays a good foundation for the subsequent heat exchange process.

[0075] Subsequently, the exhaust gas that has undergone preliminary heat exchange enters the circular channel of the middle heat storage block 53. The regularity of the circular channel allows the exhaust gas to pass through more smoothly, and its symmetrical structure allows the exhaust gas to form a more uniform temperature distribution when passing through, avoiding local overheating or overcooling, ensuring that heat can be stably transferred between the middle heat storage block 53 and the exhaust gas, reducing heat loss and thermal stress concentration. In addition, in the process of the exhaust gas transitioning from the star-shaped channel 521 to the circular channel, due to the difference in the two channel structures, a certain turbulence phenomenon will be further generated, thereby enhancing the heat exchange effect.

[0076] Finally, the exhaust gas reaches the hexagonal channel 541 of the upper heat storage block 54. The hexagonal channel 541 uses its large specific surface area and relatively regular shape to guide the exhaust gas to be evenly distributed, so that the exhaust gas forms a relatively stable laminar flow state in the channel.

[0077] In addition, in the split heat storage body structure, there are layered gaps between the upper heat storage block 54, the middle heat storage block 53 and the lower heat storage block 52. The deflection of the exhaust gas in the layered gap also makes it fully contact with the outer surface of the upper heat storage block 54, and the heat of the outer surface is continuously transferred to the exhaust gas, further enhancing the heating effect of the exhaust gas. This heat transfer method enables the exhaust gas to obtain more heat after passing through the upper heat storage block 54, maximizes the use of the heat of the heat storage body, improves the heat recovery efficiency of the entire heat storage system, and ensures efficient energy utilization under low-concentration exhaust gas conditions. It gives full play to the adaptability and heat exchange advantages of the split multi-layer heat storage structure for low-concentration exhaust gas, effectively reduces energy consumption and exhaust gas treatment costs, and provides strong support for energy conservation and emission reduction in industrial production.

[0078] When the exhaust gas concentration is high, the linear motor 614 in the driving structure 61 is started, driving the connecting plate 613 to move toward the middle shell 11, so that the elastic telescopic cylinder 615 pushes the upper heat storage block 54 and the lower heat storage block 52 to move toward each other, and the heat storage body structure 51 is combined to form a thick block-shaped circular hole channel heat storage structure. At this time, the hexagonal extension cylinder 531 is just inserted into the hexagonal channel 541 of the upper heat storage block 54, and is flush with the top surface of the upper heat storage block 54, and the star-shaped extension cylinder 532 is inserted into the star-shaped channel 521 of the lower heat storage block 52, and is flush with the bottom surface of the lower heat storage block 52, forming a unified and stable circular hole channel.

[0079] High-concentration exhaust gas enters from the exhaust gas inlet pipe 31, and flows downstream into the thick block-shaped circular hole channel heat storage structure under the guidance of the baffle structure 41. Due to the regularity of the circular hole channel, the exhaust gas can flow through the channel quickly and smoothly, and the airflow in the entire heat storage block flows evenly and quickly.

[0080] After the waste gas is incinerated, the high-temperature waste gas enters the heat storage chamber. In the initial stage, the driving structure 61 makes the upper heat storage block 54, the middle heat storage block 53 and the lower heat storage block 52 in a separated state, forming a multi-layer heat storage structure with layered gaps. After the waste gas enters, first in the star-shaped channel 521 area of ​​the lower heat storage block 52, the waste gas fully contacts the complex structure of the star-shaped channel 521, generating a strong heat exchange, and a large amount of heat is transferred to the heat storage body. At the same time, the deflection in the layered gap also enhances the heat exchange effect with the outer surface, so that the heat of the waste gas is quickly and fully absorbed.

[0081] Next, the exhaust gas enters the circular hole of the middle heat storage block 53, which further balances the temperature and energy distribution of the exhaust gas while ensuring a certain heat exchange efficiency. At the same time, it also continues to absorb heat in the exhaust gas to prepare for subsequent deep heat exchange.

[0082] When the exhaust gas reaches the hexagonal channel 541 of the upper heat storage block 54, its large specific surface area and regular shape are used to capture the residual heat in the exhaust gas to the maximum extent, ensuring that the heat in the exhaust gas is fully recovered and utilized. At this time, the split structure maximizes the contact area between the heat storage body and the exhaust gas, and the heat exchange efficiency also reaches a high level.

[0083] When the heat storage body fully absorbs heat, the driving structure 61 causes the upper heat storage block 54 and the lower heat storage block 52 to move toward the middle heat storage block 53, and the combined body forms a thick block-shaped circular hole channel heat storage structure. This combined structure greatly reduces the path for heat dissipation, allowing the heat storage body to firmly lock the absorbed heat.

[0084] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and equal changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention should all fall within the scope of the patent coverage of the present invention.

[0085] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0086] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0087] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An RTO incineration device adapted to various waste gas concentrations, characterized in that: The invention comprises a split heat storage body structure (51), wherein the heat storage body structure (51) comprises an upper heat storage block (54), a middle heat storage block (53) and a lower heat storage block (52) which are nested and connected, wherein the upper heat storage block (54) is provided with a hexagonal channel (541), the middle heat storage block (53) is provided with a circular channel, and the lower heat storage body (52) is provided with a star-shaped channel (521). The upper heat storage block (54) and the lower heat storage block (52) move away from the middle heat storage block (53) to form a multi-layer heat storage structure with layered gaps, and the upper heat storage block (54) and the lower heat storage block (52) move toward the middle heat storage block (53) to form a thick block-shaped circular hole channel heat storage structure.

2. The RTO incineration device adapted to various exhaust gas concentrations as claimed in claim 1, characterized in that: The hexagonal holes (541) of the upper heat storage block (54), the circular holes of the middle heat storage block (53), and the star-shaped holes (521) of the lower heat storage body (52) are arranged in a one-to-one correspondence; A plurality of hexagonal extension tubes (531) are fixed to a side of the middle heat storage block (53) facing the upper heat storage block (54), and a plurality of star-shaped extension tubes (532) are fixed to a side of the middle heat storage block (53) facing away from the upper heat storage block (54). The plurality of hexagonal extension tubes (531), the plurality of star-shaped extension tubes (532) and the circular channels of the middle heat storage block (53) are arranged in a one-to-one correspondence.

3. The RTO incineration device adapted to various exhaust gas concentrations as claimed in claim 2, characterized in that: The length of the hexagonal extension tube (531) is consistent with the thickness of the upper heat storage block (54), and the length of the star-shaped extension tube (532) is consistent with the thickness of the lower heat storage block (52).

4. The RTO incineration device adapted to various exhaust gas concentrations as claimed in claim 3, characterized in that: The inner circumference of the middle heat storage block (53) is attached to a combustion cylinder, and the outer circumference is attached to a heat storage cylinder. The heat storage cylinder is sleeved on the outside of the combustion cylinder. The upper heat storage block (54), the middle heat storage block (53) and the lower heat storage block (52) are arranged in the shell gap between the heat storage cylinder and the combustion cylinder. The upper and lower ends of the incineration cylinder are both provided with a main purified air pipe (33) for connecting the incineration cylinder and the heat storage cylinder chamber, and an exhaust gas inlet pipe (31) and an exhaust gas outlet pipe (32) for introducing and exporting exhaust gas are provided on the outer surface of the heat storage cylinder, and switching valves (71) are arranged on the main purified air pipe (33), the exhaust gas inlet pipe (31) and the exhaust gas outlet pipe (32).

5. The RTO incineration device adapted to various waste gas concentration compositions as claimed in claim 4, characterized in that: The heat storage cylinder comprises a middle shell (11), the upper end surface flange of the middle shell (11) is connected to an upper shell cover (12) and a lower shell cover (13), openings are provided on the surfaces of the upper shell cover (12) and the lower shell cover (13), and the two groups of main purification air pipes (33) are connected to the two openings on the surfaces of the upper shell cover (12) and the lower shell cover (13); The heat storage cylinder comprises a heat storage chamber shell (21), the heat storage chamber shell (21) is composed of three sheet shells 211, the three sheet shells (211) are connected to the middle shell (11) through flanges, two sides of the sheet shells (211) are in contact with the middle shell 11, the shell gap formed between the sheet shells 211 and the middle shell (11) is the heat storage chamber, and the upper heat storage block (54), the middle heat storage block (53) and the lower heat storage block (52) are arranged in the shell gap between the heat storage cylinder and the incineration cylinder.

6. The RTO incineration device adapted to various waste gas concentration compositions as claimed in claim 5, characterized in that: The main purified gas pipe (33) comprises an integrated main through pipe (331) and a diversion pipe (332). The number of the diversion pipes (332) is three groups. The main through pipe (331) is connected to three heat storage chambers respectively through three groups of diversion pipes (332).

7. The RTO incineration device adapted to various waste gas concentration compositions as claimed in claim 6, characterized in that: A driving structure (61) is connected between the upper heat storage block (54) and the lower heat storage block (52), the driving structure (61) comprising two groups of elastic telescopic cylinders (615) fixed on the middle shell (11), a graphite fiber rope 1 (611) and a graphite fiber rope 2 (612) slidingly arranged in the two groups of elastic telescopic cylinders (615), one end of the graphite fiber rope 1 (611) passing through the elastic telescopic cylinder (615) is connected to the surface of the upper heat storage block (54), and one end of the graphite fiber rope 2 (612) passing through the elastic telescopic cylinder (615) is connected to the lower heat storage block (52); A connecting plate (613) is fixed to the other end of the graphite fiber rope 1 (611) and the graphite fiber rope 2 (612); a linear motor (614) is connected to the surface of the connecting plate (613); the linear motor (614) drives the connecting plate (613) to move so as to act on the graphite fiber rope 1 (611) and the graphite fiber rope 2 (612), thereby pulling the upper heat storage block (54) and the lower heat storage block (52) to move in opposite directions.

8. The RTO incineration device adapted to various exhaust gas concentrations as claimed in claim 7, characterized in that: A baffle structure (41) is also provided in the heat storage chamber, the baffle structure (41) comprising a plurality of bracket bodies (411) embedded in the surface of the middle shell (11) and two groups of blocking plates (412), the blocking plates (412) being arranged at both ends of the bracket body (411), the plurality of bracket bodies (411) being connected as a whole via the blocking plates (412), and a flow guide hole (414) being provided on the surface of the blocking plates (412); Guide plates (413) are fixed to the surfaces of the two groups of sealing plates (412) facing the middle heat storage block (53); the guide plates (413) are arranged along the axial direction of the middle shell (11); there are a plurality of guide plates (413), and the plurality of guide plates (413) are inserted into the gaps between the guide holes (414).

9. The RTO incineration device adapted to various exhaust gas concentrations as claimed in claim 8, characterized in that: A positioning pin (416) is fixed on the bracket body (411), and a baffle (415) is rotatably connected to the surface of the positioning pin (416), and the baffle (415) is squeezed and deflected by the upper heat storage block (54) or the lower heat storage block (52); The deflector (415) is composed of an upper plate body (4151) and a lower plate body (4152), wherein the upper plate body (4151) is fixed on the lower plate body (4152), and the lower plate body (4152) and the lower plate body (4152) form an angle.

10. The RTO incineration device adapted to various waste gas concentration compositions as claimed in claim 9, characterized in that: The guide plate (413) has a cavity inside, and a lower magnetic plate (4131) is arranged at the bottom of the cavity. Two traction ropes (4153) extend from one end of the lower half plate body (4152) toward the guide plate (413). The lower half plate body (4152) is connected to an upper magnetic plate (4154) through the traction ropes (4153). The upper magnetic plate (4154) slides inside the guide plate (413) and has opposite magnetic properties to the lower magnetic plate (4131).

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