An RTO incineration device adaptable to various waste gas concentration compositions

Abstract

The present invention discloses an RTO incineration device adapted to various waste gas concentration compositions, which relates to the technical field of incineration devices and includes a split regenerator structure. The regenerator structure includes an upper regenerator block, a middle regenerator block, and a lower regenerator block that are nested and connected. The upper regenerator block is equipped with hexagonal channels, the middle regenerator block is configured with circular channels, and the lower regenerator block is configured with star-shaped channels. Different movements of the upper regenerator block and the lower regenerator block relative to the middle regenerator block can form a multi-layer regenerative structure or a thick-block circular hole channel regenerative structure. In the multi-layer regenerative structure, the waste gas undergoes sufficient heat exchange through the lower star-shaped channels, the middle circular channels, the upper hexagonal channels, and the layered gaps. The thick-block circular hole channel regenerative structure enables smooth air flow. After incineration, the high-temperature waste gas is absorbed separately by the regenerator structure and locked in heat when combined, improving the adaptability and treatment efficiency of the device, reducing energy consumption, and contributing to energy conservation and emission reduction in industrial waste gas treatment.

Description

Technical Field

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

[0002] A heat storage body is a material or device capable of storing and releasing thermal energy, mainly used for regulating temperature, realizing efficient utilization of energy and energy conservation. The heat storage body has high heat capacity, high thermal conductivity and good thermal stability, and can release the stored heat when needed, thereby regulating the temperature.

[0003] Chinese Patent with the authorization announcement number CN109297332B discloses a heat storage body structure, including a heat storage body main body. The heat storage body main body includes a skeleton layer and a heat storage layer alternately stacked at intervals along the height direction; the skeleton layer includes a plurality of skeleton bricks made of sensible heat storage materials, and the heat storage layer includes a plurality of heat storage bricks made of latent heat storage materials. By adopting the way of alternately stacking the skeleton layer and the heat storage layer at intervals, the heat storage bricks made of latent heat storage materials have the characteristics of large energy storage density and good heat storage performance; the skeleton bricks made of sensible heat storage materials have relatively high hardness and serve as the skeleton structure of the heat storage body structure, playing a supporting role, which can increase the stability of the heat storage body main body; and it can also enable the heat storage layer to absorb heat from both the upper and lower surfaces, making the overall heat storage capacity of the heat storage structure better.

[0004] Most traditional incineration devices adopt a heat storage body with a single structure and cannot flexibly adjust the heat exchange method according to the change of waste gas concentration, resulting in low thermal efficiency when treating waste gas with different concentrations. When the waste gas concentration is low, due to insufficient heat exchange between the heat storage body and the waste gas, a large amount of waste heat cannot be effectively recovered, causing energy waste; while when the waste gas concentration is high, problems such as local overheating and heat stress concentration may occur because the heat storage body cannot quickly absorb and store high heat, 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 potential safety hazards.

[0005] In addition, the waste 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 waste gas, so that the heat exchange mainly focuses on the surface contact part between the waste gas and the heat storage body, and the heat transfer efficiency inside is not high, further restricting the improvement of the heat energy recovery efficiency. Moreover, due to the limitations of the structural design, it is difficult to ensure the stability and continuity of the entire heat storage process under the condition of large fluctuations in waste gas temperature, and it cannot meet the strict requirements of modern industry for energy conservation, emission reduction, high efficiency and environmental protection.

[0006] Therefore, the present invention proposes an RTO incineration device adapted to various waste gas concentration compositions to solve the above problems. Summary of the Invention

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

[0008] To solve the above technical problems, the present invention provides the following technical solution: An RTO incineration device adapted to various waste gas concentration compositions, which includes a split heat storage body structure. The heat storage body structure includes 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 hexagonal channels, the middle heat storage block is configured with circular channels, and the lower heat storage block is configured with star-shaped channels. 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 a layered gap in a split manner, and the upper heat storage block and the lower heat storage block move towards the middle heat storage block to form a thick block-shaped circular hole channel heat storage structure in a combined manner.

[0009] As a preferred embodiment of the RTO incineration device adapted to various waste gas concentration compositions of the present invention, wherein: the hexagonal channels of the upper heat storage block, the circular channels of the middle heat storage block, and the star-shaped channels configured in the lower heat storage block are arranged in one-to-one correspondence;

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

[0011] As a preferred embodiment of the RTO incineration device adapted to various waste gas concentration compositions of the present invention, wherein: the length of the hexagonal extension cylinder is the same as the thickness of the upper heat storage block, and the length of the star-shaped extension cylinder is the same as the thickness of the lower heat storage block.

[0012] As a preferred embodiment of the RTO incineration device adapted to various waste gas concentration compositions of the present invention, wherein: an incineration cylinder is attached to the inner peripheral surface of the middle heat storage block, and a heat storage cylinder is attached to the outer peripheral surface. The heat storage cylinder is sleeved outside the incineration cylinder. 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;

[0013] Main purification gas pipes for connecting the chambers of the incineration cylinder and the heat storage cylinder are provided at both the upper and lower ends of the incineration cylinder. An exhaust gas inlet pipe and an exhaust gas inlet pipe for introducing and discharging exhaust gas are provided on the outer surface of the heat storage cylinder. And switching valves are configured for the main purification gas pipes, the exhaust gas inlet pipe, and the exhaust gas inlet pipe.

[0014] As a preferred embodiment of the RTO incineration device adapted to various waste gas concentration compositions of the present invention, wherein: the regenerative cylinder includes a middle housing, the upper end surface of the middle housing is flange-connected with an upper cover and a lower cover, openings are provided on the surfaces of the upper cover and the lower cover, and two groups of main purification gas pipes are connected to two openings on the surfaces of the upper cover and the lower cover;

[0015] The regenerative cylinder includes a regenerative chamber outer shell, the regenerative chamber outer shell is composed of three sheet-shaped shells 211, the three sheet-shaped shells are flange-connected to the middle housing, both sides of the sheet-shaped shell are attached to the middle housing 11, and the shell gap formed between the sheet-shaped shell 211 and the middle housing is the regenerative chamber, and the upper regenerative block, the middle regenerative block and the lower regenerative block are arranged in the shell gap between the regenerative cylinder and the incineration cylinder.

[0016] As a preferred embodiment of the RTO incineration device adapted to various waste gas concentration compositions of the present invention, wherein: the main purification gas pipe includes an integrated main pipe and shunt pipes, the number of shunt pipes is three groups, and the main pipe communicates with three regenerative chambers through the three shunt pipes respectively.

[0017] As a preferred embodiment of the RTO incineration device adapted to various waste gas concentration compositions of the present invention, wherein: a driving structure is connected between the upper regenerative block and the lower regenerative block, the driving structure includes two groups of elastic telescopic cylinders fixed on the middle housing, a first graphite fiber rope and a second graphite fiber rope slide in the two groups of elastic telescopic cylinders respectively, one end of the first graphite fiber rope passing through the elastic telescopic cylinder is connected to the surface of the upper regenerative block, and one end of the second graphite fiber rope passing through the elastic telescopic cylinder is connected to the surface of the lower regenerative block;

[0018] The other ends of the first graphite fiber rope and the second graphite fiber rope are fixed with a connecting plate, 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 first graphite fiber rope and the second graphite fiber rope, and pulls the upper regenerative block and the lower regenerative block to move away from each other.

[0019] As a preferred embodiment of the RTO incineration device adapted to various waste gas concentration compositions of the present invention, wherein: a baffle structure is further provided in the regenerative chamber, the baffle structure includes a plurality of support bodies fitted on the surface of the middle housing and two groups of blocking plates, the blocking plates are arranged at both ends of the support bodies, the plurality of support bodies are connected into one body through the blocking plates, and diversion holes are provided on the surfaces of the blocking plates;

[0020] Guide plates are fixed on the surfaces of the two groups of blocking plates facing the middle regenerative block, the guide plates are arranged along the axial direction of the middle housing, the number of the guide plates is multiple, and the multiple guide plates are inserted into the gaps between the diversion holes.

[0021] As a preferred embodiment of the RTO incineration device adapted to various waste gas concentration compositions of the present invention, the following is provided: A positioning pin is fixed on the support body, and a baffle plate is rotatably connected to the surface of the positioning pin. The baffle plate is deflected by the upper heat storage block or the lower heat storage block.

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

[0023] As a preferred embodiment of the RTO incineration device adapted to various waste gas concentration compositions of the present invention, the following is provided: The guiding plate has a cavity inside. A lower magnetic attracting plate is arranged at the bottom of the cavity. Two traction ropes extend from one end of the lower half plate body facing the guiding plate. The lower half plate body is connected to an upper magnetic attracting plate through the traction ropes. The upper magnetic attracting plate slides inside the guiding plate and has the opposite magnetism to the lower magnetic attracting plate.

[0024] Advantages 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 connected in a nested manner. The upper heat storage block is equipped with hexagonal channels, the middle heat storage block is configured with circular channels, and the lower heat storage block is configured with star-shaped channels. 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 circular hole channel heat storage structure can be respectively formed. Under the multi-layer heat storage structure, when the waste gas enters the star-shaped channels of the lower heat storage block, strong edge effects and turbulent flow reactions are generated due to its complex shape, enabling the waste gas to exchange heat more fully with the lower heat storage block, improving the heat response speed and recovery efficiency; the circular channels of the middle heat storage block allow the waste gas to pass through smoothly and can exchange heat evenly, playing a buffering and balancing role; the hexagonal channels of the upper heat storage block can store and release heat, and combined with the baffle of the layered gap, further strengthen the utilization of the waste gas heat; and when the thick-block circular hole channel heat storage structure is formed, the regular circular hole channels enable the air flow to flow smoothly, evenly, and quickly throughout the heat storage block; in addition, the high-temperature waste 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 heat, and then the combined heat storage body structure is used to lock the heat, thereby realizing efficient heat exchange and heat recovery, improving the adaptability and treatment efficiency of the entire RTO incineration device to various waste gas concentration compositions, reducing energy consumption and operating costs, and playing an important role in energy conservation and emission reduction of industrial waste gas treatment. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 Schematic diagram of the overall structure of the RTO incineration device adaptable to various waste gas concentration compositions in the present invention;

[0027] Figure 2 Partial structural detail diagram at the regenerator outer shell in the present invention;

[0028] Figure 3 In the present invention Figure 2 Enlarged view of the structure of part A;

[0029] Figure 4 Partial structural detail diagram at the regenerator structure in the present invention;

[0030] Figure 5 In the present invention Figure 4 Enlarged view of the structure of part B;

[0031] Figure 6 Schematic diagram of the overall structure of the baffle structure in the present invention;

[0032] Figure 7 Axonometric view of the overall structure of the baffle structure in the present invention;

[0033] Figure 8 Partial structural detail diagram at the baffle plate in the present invention;

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

[0035] Figure 10 Partial structural detail diagram at the middle regenerator block in the present invention.

[0036] Reference numerals in the drawings are: 11, middle housing; 12, upper housing cover; 13, lower housing cover; 21, regenerator outer shell; 211, sheet-shaped housing; 31, waste gas inlet pipe; 32, waste gas outlet pipe; 33, main purification gas pipe; 331, main through pipe; 332, shunt pipe; 41, baffle structure; 411, support body; 412, blocking plate; 413, guiding plate; 4131, lower magnetic attraction plate; 414, diversion hole; 415, baffle plate; 4151, upper half plate body; 4152, lower half plate body; 4153, traction rope; 4154, upper magnetic attraction plate; 416, positioning pin; 51, regenerator structure; 52, lower regenerator block; 521, star-shaped channel; 53, middle regenerator block; 531, hexagonal extension cylinder; 532, star-shaped extension cylinder; 54, upper regenerator block; 541, hexagonal channel; 61, driving structure; 611, first graphite fiber rope; 612, second graphite fiber rope; 613, connecting plate; 614, linear motor; 615, elastic telescopic cylinder; 71, switching valve. Detailed description of the invention

[0037] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific embodiments of the present invention will be provided in conjunction with the accompanying drawings of the specification.

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

[0039] Refer to Figures 1-10 As shown, this is the first embodiment of the present invention. This embodiment provides an RTO incineration device adapted to various waste 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 that are nested and connected. The upper heat storage block 54 is equipped with hexagonal channels 541, the middle heat storage block 53 is configured with circular channels, and the lower heat storage block 52 is configured with star-shaped channels 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 a layered gap in a split manner, and the upper heat storage block 54 and the lower heat storage block 52 move towards the middle heat storage block 53 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 form a multi-layer heat storage structure with a layered gap in a split state; the star-shaped channel 521 structure of the lower heat storage block 52 has a complex shape and many corners, and when the exhaust gas enters the star-shaped channel 521, strong edge effects and turbulent flow reactions are generated. 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 turbulent flow phenomenon can make the heat exchange between the exhaust gas and the lower heat storage block 52 more sufficient. By increasing the turbulence degree of the exhaust gas, heat can be quickly transferred from the lower heat storage block 52 to the exhaust gas, thereby improving the heat response speed and heat recovery efficiency of the entire heat storage system. The circular channel structure of the middle heat storage block 53 results in relatively small resistance when the exhaust gas passes through. In the split state, the circular channel structure of the middle heat storage block 53 enables a certain heat exchange efficiency between the exhaust gas and the middle heat storage block 53, 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, a relatively uniform temperature distribution can be formed when the body passes through, avoiding local overheating or overcooling phenomena. This uniform temperature distribution enables heat to be transferred more evenly between the heat storage body structure 51 and the fluid, reducing heat loss and heat stress concentration, and serving as a buffer and balance for the exhaust gas. The hexagonal channel 541 structure of the upper heat storage block 54 has stability. The hexagonal channel 541 can effectively store and release heat initially by virtue of 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 towards the middle heat storage block 53 to form a thick block-shaped round hole channel heat storage structure: both are used for one channel, that is, a round hole channel. The combined round hole channel forms a unified and stable channel structure, enabling the air flow to flow smoothly, evenly and quickly within the entire heat storage block.

[0043] Refer to Figure 10 As shown, the hexagonal channel 541 of the upper heat storage block 54, the circular channel of the middle heat storage block 53, and the star-shaped channel 521 configured in the lower heat storage block 52 are arranged in one-to-one correspondence.

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

[0045] Refer to Figure 10 As shown, the length of the hexagonal extension cylinder 531 is the same as the thickness of the upper heat storage block 54, and the length of the star-shaped extension cylinder 532 is the same as 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 towards the middle heat storage block 53 to combine, the hexagonal extension cylinder 531 just inserts 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. The star-shaped extension cylinder 532 inserts 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] Refer to Figures 1-4 As shown, an incineration cylinder is attached to the inner peripheral surface of the middle heat storage block 53, and a heat storage cylinder is attached to the outer peripheral surface. The heat storage cylinder is sleeved outside the incineration 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 incineration cylinder;

[0048] Main purification air pipes 33 for connecting the chambers of the incineration cylinder and the heat storage cylinder are provided at both the upper and lower ends of the incineration cylinder. An exhaust gas inlet pipe 31 and an exhaust gas outlet pipe 32 for introducing and discharging exhaust gas are provided on the outer surface of the heat storage cylinder. And switching valves 71 are arranged on the main purification air pipes 33, the exhaust gas inlet pipe 31, and the exhaust gas outlet pipe 32.

[0049] Refer to Figures 1-4 As shown, the heat storage cylinder includes a middle shell 11. The upper end face of the middle shell 11 is flange-connected with 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. 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;

[0050] As Figures 4-5 shown, the heat storage cylinder includes a heat storage outer shell 21. The heat storage outer shell 21 is composed of three sheet-shaped shells 211. The three sheet-shaped shells 211 are flange-connected to the middle shell 11. The two sides of the sheet-shaped shell 211 are attached to the middle shell 11. The shell gap formed between the sheet-shaped shell 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-shaped shells 211 and the middle shell 11. The three heat storage chambers are independent of each other and not connected. The number of the exhaust gas inlet pipes 31 and the exhaust gas outlet pipes 32 is three groups. 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 purification air pipe 33 includes an integral main through pipe 331 and shunt pipes 332. The number of the shunt pipes 332 is three groups. The main through pipe 331 is connected to the three heat storage chambers respectively through the three shunt pipes 332. The heat storage cylinder exchanges gas with the three heat storage chambers of the incineration cylinder through the main purification air pipe 33. And switching valves 71 are arranged on the three shunt pipes 332.

[0053] As shown Figures 6-9 in FIG., 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 housing 11. A first graphite fiber rope 611 and a second graphite fiber rope 612 are respectively slid in the two sets of elastic telescopic cylinders 615. One end of the first graphite fiber rope 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 second graphite fiber rope 612 passing through the elastic telescopic cylinder 615 is connected to the surface of the lower heat storage block 52;

[0054] The other ends of the first graphite fiber rope 611 and the second graphite fiber rope 612 are fixed with a connecting plate 613. 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 first graphite fiber rope 611 and the second graphite fiber rope 612, pulling the upper heat storage block 54 and the lower heat storage block 52 to move away from each other.

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

[0056] Exemplarily, the linear motor 614 is fixed on the lower housing cover 13. The second graphite fiber rope 612 passes through the middle housing 11 and the lower housing cover 13 and is connected to the connecting plate 613. The first graphite fiber rope 611 passes through the middle housing 11 and the upper housing cover 12, then bends and penetrates into the gap between two adjacent sheet-shaped housings 211, and finally passes through the middle housing 11 and the lower housing 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 housing 11, the connecting plate 613 synchronously moves away from the connecting plate 613, and the connecting plate 613 pulls the first graphite fiber rope 611 and the second graphite fiber rope 612, and the elastic telescopic cylinder 615 contracts to make the upper heat storage block 54 and the lower heat storage block 52 move away from each other.

[0058] When the linear motor 614 drives the connecting plate 613 to move towards the middle housing 11, the connecting plate 613 synchronously moves towards the connecting plate 613, the first graphite fiber rope 611 and the second graphite fiber rope 612 slide in the opposite direction, the elastic telescopic cylinder 615 extends relatively, and the upper heat storage block 54 and the lower heat storage block 52 move towards each other.

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

[0060] As Figures 6-9As shown, a baffle structure 41 is further provided in the heat storage chamber. The baffle structure 41 includes a plurality of support bodies 411 fitted on the surface of the middle housing 11 and two groups of sealing plates 412. The sealing plates 412 are arranged at both ends of the support bodies 411. The plurality of support bodies 411 are connected into one body by the sealing plates 412. Flow guiding holes 414 are formed on the surface of the sealing plates 412.

[0061] On the surfaces of the two groups of sealing plates 412 facing the middle heat storage block 53, guide plates 413 are fixed. The guide plates 413 are arranged along the axial direction of the middle housing 11. The number of the guide plates 413 is multiple. The multiple guide plates 413 are inserted into the gaps between the flow guiding holes 414.

[0062] Exemplarily, the baffle structure 41 is symmetrically arranged with respect to the horizontal center plane of the middle heat storage block 53.

[0063] Exemplarily, the guide plates 413 are clamped between the waste gas inlet pipe 31 and the waste gas outlet pipe 32, so that the waste gas entering from the waste gas inlet pipe 31 is introduced by the sealing plates 412 and the flow guiding holes 414 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 for preheating, and the waste gas discharged from the waste gas outlet pipe 32 is cooled through the areas 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 plates 412 is the same as the cross-sectional shape of the heat storage chamber. The waste gas introduced through the sealing plates 412 is divided into multiple airflows through the flow guiding 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] As Figures 6-9 shown, positioning pins 416 are fixed on the support bodies 411. A baffle 415 is rotatably connected to the surface of the positioning pins 416. The baffle 415 is deflected under the extrusion of the upper heat storage block 54 or the lower heat storage block 52.

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

[0067] Exemplarily, the top of the baffle 415 has a certain angle of deflection, and the purpose is to ensure that under the extrusion 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] As Figures 6-9As shown, the guide plate 413 has a cavity inside. At the bottom of the cavity, a lower magnetic attracting plate 4131 is arranged. At one end of the lower half plate body 4152 facing the guide plate 413, two traction ropes 4153 extend. The lower half plate body 4152 is connected with an upper magnetic attracting plate 4154 through the traction ropes 4153. The upper magnetic attracting plate 4154 slides inside the guide plate 413 and has the opposite magnetism to the lower magnetic attracting plate 4131.

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

[0070] Specifically, when the upper heat storage block 54 or the lower heat storage block approaches the baffle structure 41 for movement, the baffle plate 415 is squeezed and deflected. The lower half plate body 4152 and the lower half plate body 4152 are deflected. The lower half plate body 4152 drives the upper magnetic attracting plate 4154 to slide in the cavity of the guide plate 413 through the traction ropes 4153. Since the upper magnetic attracting plate 4154 and the lower magnetic attracting plate 4131 have opposite magnetisms, the magnetic force generated between the two will resist the pulling force of the traction ropes 4153, so that the baffle plate 415 can maintain a certain stability during the process of being squeezed and deflected, avoiding excessive swinging or disorderly flipping of the baffle plate 415 caused by the waste gas flow, thereby ensuring that the flow path of the waste gas can be deflected at a certain angle.

[0071] When the baffle plate 415 is not squeezed and deflected, the magnetic force generated between the upper magnetic attracting plate 4154 and the lower magnetic attracting plate 4131 will drive the upper magnetic attracting plate 4154 to move towards the lower magnetic attracting plate 4131, and the upper magnetic attracting plate 4154 drives the baffle plate 415 to reset through the traction ropes 4153.

[0072] Working principle: When the waste gas concentration is low, the linear motor 614 in the driving structure 61 starts, driving the connecting plate 613 to move away from the middle housing 11. The connecting plate 613 pulls the graphite fiber rope one 611 and the graphite fiber rope two 612, and then pulls the upper heat storage block 54 and the lower heat storage block 52 to move away from each other, 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 away from each other, the state of the baffle plate 415 being squeezed and deflected by the upper heat storage block 54 and the lower heat storage block 52 changes.

[0073] The waste gas enters from the waste gas inlet pipe 31 and is first guided and shunted by the blocking plate 412 and the diversion holes 414 of the baffle structure 41. Since the baffle plate 415 is deflected at a certain angle at this time, the shunted waste gas enters the star-shaped pore channels 521 of the lower heat storage block 52 at a certain angle under the guidance of the baffle plate 415. The shunted waste gas enters the star-shaped pore channels 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 inclined angle, it will first impact a specific corner area near the entrance inside 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 changes rapidly in this area, part of the kinetic energy is converted into heat energy, and at the same time, strong pressure fluctuations are generated, thereby inducing a relatively large vortex. This vortex will entrain 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, due to the star-shaped channel 521 having more corners, during the process of the exhaust gas flowing along the star-shaped channel 521, a similar energy conversion and vortex formation process will continuously occur at the corners of each star-shaped channel 521; the vortices and secondary flows formed at each corner interact with each other, greatly enhancing the degree of fluid mixing and the turbulent intensity. 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, significantly improving the heat exchange efficiency and the heat response speed, fully exploiting the waste heat in the exhaust gas, and laying a good foundation for the subsequent heat exchange process.

[0075] Subsequently, the exhaust gas that has undergone preliminary heat exchange enters the circular channels of the middle heat storage block 53. The regularity of the circular channels enables the exhaust gas to pass through relatively smoothly, and its symmetric structure makes the exhaust gas form a relatively uniform temperature distribution when passing through, avoiding the phenomenon of local overheating or overcooling, ensuring that heat can be stably transferred between the middle heat storage block 53 and the exhaust gas, and reducing heat loss and heat stress concentration. In addition, during the process of the exhaust gas transitioning from the star-shaped channel 521 to the circular channel, due to the difference in the structures of the two channels, a certain turbulent flow phenomenon will further occur, 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 utilizes its relatively large specific surface area and relatively regular shape to guide the uniform distribution of the exhaust gas, enabling the exhaust gas to form a relatively stable laminar flow state inside the channel.

[0077] In addition, in the split heat storage body structure 51, 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 zigzag flow of the waste gas in the layered gaps also enables it to come into full contact with the outer surface of the upper heat storage block 54, and the heat on the outer surface is continuously transferred to the waste gas, further enhancing the heating effect on the waste gas. This heat transfer method enables the waste gas to obtain more heat after passing through the upper heat storage block 54, maximizing the utilization of the heat of the heat storage body structure 51, improving the heat recovery efficiency of the entire heat storage system, ensuring efficient energy utilization even under low-concentration waste gas conditions, giving full play to the adaptability and heat exchange advantages of the split multi-layer heat storage structure for low-concentration waste gas, effectively reducing energy consumption and waste gas treatment costs, and providing strong support for energy conservation and emission reduction in industrial production.

[0078] When the waste gas concentration is high, the linear motor 614 in the driving structure 61 starts, driving the connecting plate 613 to move towards the middle housing 11, so that the elastic telescopic cylinder 615 pushes the upper heat storage block 54 and the lower heat storage block 52 to move towards each other, and the heat storage body structure 51 combines to form a thick-block circular hole channel heat storage structure. At this time, the hexagonal extension cylinder 531 just inserts into the hexagonal hole 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 inserts into the star-shaped hole 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] The high-concentration waste gas enters from the waste gas inlet pipe 31 and, under the guidance of the flow deflection structure 41, flows smoothly into the thick-block circular hole channel heat storage structure. Due to the regularity of the circular hole channel, the waste gas can flow straight through the channel quickly and smoothly, and the airflow flows evenly and rapidly throughout the heat storage block.

[0080] After the waste gas is burned, the high-temperature waste gas enters the heat storage chamber. In the initial stage, the driving structure 61 keeps the upper heat storage block 54, the middle heat storage block 53, and the lower heat storage block 52 in a split state, forming a multi-layer heat storage structure with layered gaps. After the waste gas enters, first in the star-shaped hole 521 area of the lower heat storage block 52, the waste gas comes into full contact with the complex structure of the star-shaped hole 521, generating strong heat exchange. A large amount of heat is transferred to the heat storage body structure 51, and at the same time, the zigzag flow in the layered gaps also enhances the heat exchange effect with the outer surface, enabling the heat of the waste gas to be quickly and fully absorbed.

[0081] Then, the waste gas enters the circular hole of the middle heat storage block 53. On the basis of ensuring a certain heat exchange efficiency, it further balances the temperature and energy distribution of the waste gas, and at the same time continues to absorb the heat in the waste gas to prepare for subsequent in-depth heat exchange.

[0082] When the waste gas reaches the hexagonal channels 541 of the upper heat storage block 54, by virtue of its large specific surface area and regular shape, the remaining heat in the waste gas is captured to the greatest extent, ensuring that the heat in the waste gas is fully recovered and utilized. At this time, the split structure enables the contact area between the heat storage body structure 51 and the waste gas to reach the maximum, and the heat exchange efficiency also reaches a relatively high level.

[0083] After the heat storage body structure 51 fully absorbs heat, the driving structure 61 prompts the upper heat storage block 54 and the lower heat storage block 52 to move towards the middle heat storage block 53, and they combine to form a thick-block circular-hole channel heat storage structure. This combined structure greatly reduces the heat dissipation path, enabling the heat storage body structure 51 to firmly lock the absorbed heat.

[0084] Of course, the above content is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples either. Equivalent changes and improvements made by those of ordinary skill in the art within the essence of the present invention shall fall within the scope covered by the patent of the present invention.

[0085] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or the communication inside two components. It can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;

[0086] Second: In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. Other structures can refer to the usual designs. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0087] Finally: The above is only a preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An RTO incineration device adapted to various waste gas concentration compositions, characterized in that: It includes a split heat storage body structure (51), and 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) that are nested and connected. The upper heat storage block (54) is equipped with hexagonal channels (541), the middle heat storage block (53) is configured with circular channels, and the lower heat storage block (52) is configured with star-shaped channels (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 a layered gap in a split manner, and the upper heat storage block (54) and the lower heat storage block (52) move towards the middle heat storage block (53) to form a thick block-shaped round hole channel heat storage structure when combined; 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) configured in the lower heat storage block (52) are arranged in one-to-one correspondence; A plurality of hexagonal extension cylinders (531) are fixed on one side of the middle heat storage block (53) facing the upper heat storage block (54), and a plurality of star-shaped extension cylinders (532) are fixed on one side of the middle heat storage block (53) facing away from the upper heat storage block (54). The plurality of hexagonal extension cylinders (531), the plurality of star-shaped extension cylinders (532), and the circular channels of the middle heat storage block (53) are arranged in one-to-one correspondence; 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 groups of elastic telescopic cylinders (615). A first graphite fiber rope (611) and a second graphite fiber rope (612) slide in the two groups of elastic telescopic cylinders (615) respectively. One end of the first graphite fiber rope (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 second graphite fiber rope (612) passing through the elastic telescopic cylinder (615) is connected to the surface of the lower heat storage block (52); The other ends of the first graphite fiber rope (611) and the second graphite fiber rope (612) are fixed with a connecting plate (613). 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 first graphite fiber rope (611) and the second graphite fiber rope (612), pulling the upper heat storage block (54) and the lower heat storage block (52) to move away from each other.

2. The RTO incineration device adapted to various waste gas concentration compositions according to claim 1, wherein: The length of the hexagonal extension cylinder (531) is the same as the thickness of the upper heat storage block (54), and the length of the star-shaped extension cylinder (532) is the same as the thickness of the lower heat storage block (52).

3. The RTO incineration device adapted to various waste gas concentration compositions according to claim 2, wherein: An incineration cylinder is attached to the inner peripheral surface of the middle heat storage block (53), and a heat storage cylinder is attached to the outer peripheral surface. The heat storage cylinder is sleeved outside the incineration 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 incineration cylinder; Both the upper and lower ends of the incineration cylinder are provided with main purification gas pipes (33) for connecting the incineration cylinder and the chambers of the heat storage cylinder, and an exhaust gas inlet pipe (31) and an exhaust gas outlet pipe (32) for introducing and discharging exhaust gas are arranged on the outer surface of the heat storage cylinder. Moreover, switching valves (71) are configured for the main purification gas pipes (33), the exhaust gas inlet pipe (31), and the exhaust gas outlet pipe (32).

4. The RTO incineration device adapted to various waste gas concentration compositions according to claim 3, wherein: The heat storage cylinder includes a middle shell (11). The upper end face of the middle shell (11) is flange-connected with 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). Two groups of the main purification gas 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 includes a heat storage outer shell (21). The heat storage outer shell (21) is composed of three sheet-shaped shells (211). The three sheet-shaped shells (211) are flange-connected to the middle shell (11). The two sides of the sheet-shaped shell (211) are attached to the middle shell (11). The shell gap formed between the sheet-shaped shell (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.

5. The RTO incineration device adapted to various exhaust gas concentration compositions according to claim 4, characterized in that: The main purification gas pipe (33) includes an integral main through pipe (331) and shunt pipes (332). The number of the shunt pipes (332) is three groups. The main through pipe (331) is respectively connected to three heat storage chambers through the three groups of shunt pipes (332).

6. The RTO incineration device adapted to various waste gas concentration compositions according to claim 5, characterized in that: A baffle structure (41) is further arranged in the heat storage chamber. The baffle structure (41) includes a plurality of support bodies (411) embedded on the surface of the middle shell (11) and two groups of blocking plates (412). The blocking plates (412) are arranged at both ends of the support bodies (411). The plurality of support bodies (411) are connected into one body through the blocking plates (412). Flow guiding holes (414) are formed on the surfaces of the blocking plates (412). Guiding plates (413) are fixed on the surfaces of the two groups of blocking plates (412) facing the middle heat storage block (53). The guiding plates (413) are arranged along the axial direction of the middle shell (11). The number of the guiding plates (413) is multiple. The multiple guiding plates (413) are inserted into the gaps between the flow guiding holes (414).

7. The RTO incineration device adapted to various waste gas concentration compositions according to claim 6, characterized in that: Positioning pins (416) are fixed on the support bodies (411). Baffle plates (415) are rotatably connected to the surfaces of the positioning pins (416). The baffle plates (415) are deflected by the extrusion of the upper heat storage block (54) or the lower heat storage block (52). The baffle plate (415) is composed of an upper half plate body (4151) and a lower half plate body (4152). The upper half plate body (4151) is fixed on the lower half plate body (4152), and an included angle is formed between the upper half plate body (4151) and the lower half plate body (4152).

8. The RTO incineration device adapted to various waste gas concentration compositions according to claim 7, characterized in that: The guide plate (413) has a cavity inside, and a lower magnetic attraction 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) towards the guide plate (413). The lower half plate body (4152) is connected to an upper magnetic attraction plate (4154) through the traction ropes (4153). The upper magnetic attraction plate (4154) slides inside the guide plate (413) and has a magnetic polarity opposite to that of the lower magnetic attraction plate (4131).

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