A regenerative combustion furnace

Abstract

The application relates to the technical field of waste gas treatment equipment, and provides a regenerative combustion furnace. The regenerative combustion furnace can solve the problem that the operation of personnel access and carrying is inconvenient during overhauling of the regenerative combustion furnace. The regenerative combustion furnace comprises a furnace body, a gas path system and a combustion chamber, wherein the furnace body is internally provided with a cavity, the top of the furnace body is provided with a first overhauling opening; the gas path system is communicated with the furnace body and comprises a waste gas pipeline; the combustion chamber is arranged in the furnace body and is communicated with the gas path system, the combustion chamber is internally provided with a regenerative body, and the combustion chamber is used for burning waste gas entering the combustion chamber through the waste gas pipeline; wherein the inner contour of the first overhauling opening is larger than the sectional outer contour of the regenerative body.

Description

Technical Field

[0001] This application relates to the field of waste gas treatment equipment technology, and in particular to a regenerative combustion furnace. Background Technology

[0002] A regenerative thermal oxidizer (RTO) is an organic waste gas treatment device that combines high-temperature oxidation with thermal storage technology. This equipment effectively reduces heat loss and energy consumption, while significantly lowering the temperature of the purified gas exiting the system.

[0003] Because the combustion exhaust gas contains organic silicon, it is easy to generate silicon dioxide crystal powder during combustion, which can cause blockage of the heat storage medium. Therefore, the heat storage medium needs to be cleaned, replaced and repaired regularly. The current regenerative combustion furnace has the problem of inconvenient operation for maintenance and component handling. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a regenerative combustion furnace that facilitates maintenance and component handling.

[0005] This application provides a regenerative combustion furnace, including a furnace body, a gas passage system, and a combustion chamber. The furnace body has an internal cavity, and a first inspection port is provided at the top of the furnace body. The gas passage system is connected to the furnace body and includes an exhaust gas pipe. The combustion chamber is disposed in the furnace body and connected to the gas passage system. A heat storage body is provided in the combustion chamber, which is used to burn the exhaust gas entering it through the exhaust gas pipe. The inner contour of the first inspection port is larger than the outer contour of the heat storage body.

[0006] The regenerative thermal oxidizer provided in this application introduces waste gas into the combustion chamber via a gas path system for combustion, decomposing the waste gas into environmentally friendly gases such as carbon dioxide and water. The heat generated by combustion is absorbed by a heat storage medium, which can be used to preheat subsequent waste gas, reducing energy consumption. Because a first inspection port is located at the top of the furnace body, and the inner contour of the first inspection port is larger than the outer contour of the heat storage medium's cross-section, the heat storage medium can be easily hoisted out through this first inspection port when maintenance or repair is required, making operation very convenient. Compared to solutions with inspection ports on the side walls, the first inspection port at the top allows for hoisting, providing more convenient tool support for operations, reducing manual intervention, and facilitating operation and installation. Furthermore, since the first inspection port is located at the top of the furnace body, it provides strong ventilation when personnel enter the furnace, preventing injury from high temperatures or insufficient oxygen, and improving work efficiency.

[0007] In some embodiments of this application, the geometric center of the first inspection port is offset from the geometric center of the combustion chamber along the vertical direction.

[0008] Here, the first access port is staggered from the combustion chamber, allowing tooling or components hoisted from the first access port to be placed directly on the side plate of the combustion chamber under their own weight, without pressing on top of the combustion chamber, for example, without pressing on the heat accumulator. This facilitates the removal or installation of the heat accumulator and allows for easy switching between the heat accumulator within the combustion chamber and the tooling.

[0009] In some embodiments of this application, there are at least two combustion chambers, and the projection of the geometric center of the first access port falls within the gap between the two combustion chambers in the vertical direction.

[0010] Here, when there are multiple combustion chambers, to facilitate layout and make better use of internal space, the vertical position of the first inspection port is between two adjacent combustion chambers. In this way, two combustion chambers can be easily inspected from both sides of one inspection port, improving space utilization.

[0011] In some embodiments of this application, there are three combustion chambers, which are spaced apart along a first direction, and there are two first inspection ports, the geometric centers of which are respectively located in two gaps between the three combustion chambers.

[0012] Here, when there are three combustion chambers, the first inspection port can be set between two adjacent combustion chambers. That is, setting two first inspection ports can meet the maintenance needs of all three combustion chambers.

[0013] In some embodiments of this application, the regenerative combustion furnace further includes a first operating platform, which is located on the top of the furnace body and near the first inspection port.

[0014] Here, a first operating platform is set on the top of the furnace body, which makes it convenient for staff to carry out operations near the first inspection port and improves the safety of the staff.

[0015] In some embodiments of this application, the regenerative combustion furnace further includes a first stepped structure, which is disposed on the side wall of the furnace body and is connected to the first operating platform at the upper end and connected to the ground at the lower end.

[0016] Here, the first-tier structure allows staff to easily access the first operating platform, further improving the convenience of equipment maintenance and repair.

[0017] In some embodiments of this application, a second inspection port is provided on the side wall of the furnace body. The regenerative combustion furnace also includes a second operating platform and a second stepped structure. The second operating platform is located outside the side wall of the furnace body where the second inspection port is located. The second stepped structure connects the second operating platform to the ground. The lower end of the first stepped structure is connected to the second operating platform.

[0018] Here, a second maintenance opening is provided on the side wall of the furnace body, facilitating horizontal operation and maintenance. Workers can also easily enter and exit the furnace body through this opening. The second operating platform provides support for work outside the second maintenance opening, and the second stepped structure allows workers to easily access the second operating platform from the ground. Furthermore, by utilizing the second operating platform and the second stepped structure, the first stepped structure only needs to connect the first and second operating platforms, and then the second stepped structure connects to the ground. This reduces the overall structure of the equipment, lowers costs, and creates a compact design that facilitates layout within the factory.

[0019] In some embodiments of this application, the upper surface of the furnace body includes a platform, and the first operating table includes a fence surrounding the platform.

[0020] Here, a platform is provided on the upper surface of the furnace body, serving as the bearing surface for the primary operating platform. This facilitates setup and eliminates the need for an additional platform, reducing costs. Furthermore, a fence is installed around this platform to enhance safety.

[0021] In some embodiments of this application, the regenerative combustion furnace further includes a first cover plate, which covers the first inspection port and is used to open or close the first inspection port.

[0022] Here, when not under maintenance, the first access port is closed using the first cover plate to maintain a relatively enclosed internal space for combustion. When maintenance is required or air circulation needs to be improved, the first access port can be opened by operating the first cover plate.

[0023] In some embodiments of this application, the regenerative combustion furnace further includes a transport fixture, wherein the inner contour of the first inspection port is larger than the outer contour of the cross-section of the transport fixture, and the transport fixture is used to carry and transport the regenerator.

[0024] This includes a matching transport fixture that can pass smoothly through the first inspection port, facilitating the transport and handling of components inside the furnace, such as heat storage elements. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1This is a schematic diagram of the regenerative combustion furnace according to an embodiment of this application; Figure 2 This is a front structural diagram of the regenerative combustion furnace according to an embodiment of this application; Figure 3 This is a top view of the regenerative combustion furnace according to an embodiment of this application; Figure 4 This is a schematic diagram of the furnace body of the regenerative combustion furnace according to an embodiment of this application; Figure 5 This is a schematic diagram of the transport fixture for the regenerative combustion furnace according to an embodiment of this application during transportation. Figure 6 This is one of the flowcharts illustrating the maintenance method for a regenerative combustion furnace according to an embodiment of this application. Figure 7 This is a second schematic flowchart illustrating the maintenance method for a regenerative combustion furnace according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures: 1-Furnace body; 11-First inspection port; 12-Second inspection port; 2-Gas system; 3-Combustion chamber; 31-Heat regenerator; 4-First operating platform; 41-Platform; 42-Enclosure; 5-First stepped structure; 6-Second operating platform; 7-Second stepped structure; 8-Transport tooling; X-First horizontal direction; Y-Second horizontal direction; Z-Vertical direction. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0032] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0035] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0036] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0037] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0038] The following is a detailed description of this application.

[0039] Regenerative thermal oxidizers can treat low-to-medium concentration organic waste gas using thermal oxidation, and recover heat using a regenerative oxidation bed heat exchanger. In other words, the heat generated by burning organic waste gas can be recovered by the regenerative oxidation bed heat exchanger, which can also serve as a preheating device for subsequent organic waste gas. Therefore, regenerative thermal oxidizers can effectively reduce heat loss and energy consumption, while significantly lowering the exhaust temperature of the purified gas.

[0040] Generally, a regenerative thermal oxidizer may include a ceramic regenerative oxidation chamber, a heating chamber, automatic control valves, and an electrical control system. The working process can be as follows: the automatic control valves at the bottom of the regenerative oxidation bed are connected to the main inlet pipe and the main exhaust pipe, respectively. The regenerative oxidation bed uses a reversing valve to alternately redirect the flow, retaining the heat from the high-temperature gas exiting the oxidation chamber and preheating the organic waste gas entering the regenerative oxidation bed. A heat storage body 31 made of ceramic heat storage material can be used in the regenerative oxidation chamber to absorb and release heat. The organic waste gas, preheated to a certain temperature (e.g., 850℃), undergoes an oxidation reaction in the oxidation chamber, producing carbon dioxide and water, thus achieving purification.

[0041] Since organic waste gas often contains organosilicon, it easily generates silica crystalline powder after combustion in the furnace, which can clog the heat storage body 31, reduce its heat storage capacity, and weaken the ventilation effect. Therefore, the heat storage body 31 in the regenerative combustion furnace needs to be cleaned, replaced, and repaired regularly.

[0042] In related technologies, a regenerative combustion furnace has an inspection port on the outer side of the furnace body 1 for personnel to enter and exit when the regenerator 31 is cleaned or replaced, such as for moving the regenerator 31 inside the furnace body 1.

[0043] However, since the furnace body 1 of the regenerative combustion furnace is a closed space filled with regenerator 31, it is difficult to ensure effective ventilation when cleaning and replacing the regenerator 31. In addition, due to the good insulation performance inside the furnace body 1, the internal temperature of the furnace body 1 is high. As a result, when the staff moves the regenerator inside, there is a risk of danger due to high temperature or insufficient ventilation. Moreover, it can only be operated manually, and the efficiency of moving the regenerator inside the furnace body 1 is relatively low.

[0044] To address the aforementioned problems, this application provides a regenerative combustion furnace, referring to... Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the regenerative combustion furnace according to an embodiment of this application; Figure 2 This is a front structural diagram of the regenerative combustion furnace according to an embodiment of this application; Figure 3This is a top view of the regenerative combustion furnace according to an embodiment of this application. Furthermore, for ease of description, the accompanying drawings of this application indicate two mutually perpendicular first horizontal directions X and second horizontal directions Y, as well as a vertical direction Z that is perpendicular to both the first horizontal direction X and the second horizontal direction Y.

[0045] This application provides a regenerative combustion furnace, including a furnace body 1, a gas passage system 2, and a combustion chamber 3. The furnace body 1 has an internal cavity, and a first inspection port 11 is provided on the top of the furnace body 1. The gas passage system 2 is connected to the furnace body 1 and includes an exhaust gas pipe. The combustion chamber 3 is disposed inside the furnace body 1 and is connected to the gas passage system 2. A heat storage body 31 is provided inside the combustion chamber 3, and the combustion chamber 3 is used to burn the exhaust gas entering it through the exhaust gas pipe. The inner contour of the first inspection port 11 is larger than the outer contour of the cross-section of the heat storage body 31.

[0046] Furnace body 1 refers to the outer shell of the regenerative combustion furnace, which forms an internal cavity for combustion and placement of the regenerator 31, etc. Furnace body 1 can be a steel structure shell, providing a sealed space inside to ensure the stable conduct of the high-temperature oxidation reaction. The high-temperature oxidation reaction inside the furnace can be stable at 760~850℃.

[0047] The gas path system 2 is connected to the furnace body 1 and includes exhaust gas pipes; it refers to the equipment, pipes, valves, etc., that handle the airflow in the regenerative combustion furnace. It may include exhaust gas pipes to supply exhaust gas for combustion in the combustion chamber 3. Examples include switching valves (such as rotary valves) and regulating valves, driven by compressed air to achieve rapid switching and flow control of the exhaust gas path; it may also include a backflow fan to inject clean air into the regenerative chamber, remove residual exhaust gas to avoid cross-contamination, and ensure purification efficiency in the next cycle.

[0048] Combustion chamber 3 refers to the core oxidation area for burning exhaust gas located inside the furnace body 1. It ensures that the exhaust gas residence time inside is 1-2 seconds and the internal temperature is maintained above 800℃, thereby improving the efficiency of exhaust gas purification.

[0049] The furnace body 1 has a cavity inside, which means that there are corresponding chambers inside the furnace body 1, such as combustion chamber 3, heat storage chamber, etc. Of course, the combustion chamber and the heat storage chamber can be one chamber or two chambers. This application does not limit this.

[0050] The furnace body 1 has a first inspection port 11 at its top; this means that the first inspection port 11 is located at the top of the furnace body 1 along the vertical direction Z. The first inspection port 11 is an opening that connects the interior of the furnace body 1 to the outside, and tools or items can be placed through the first inspection port 11. For example, maintenance personnel can move the honeycomb ceramic heat storage element 31 through the first inspection port 11. It can have an openable door panel structure to facilitate the replacement and maintenance of the heat storage element 31.

[0051] The heat storage element 31 refers to a component that can store and recover the heat generated during the oxidation and combustion of waste gas, reducing energy waste. It is an energy exchange medium that periodically stores or releases heat. The heat storage element 31 can be made of ceramic material, and its structure can be a honeycomb porous structure.

[0052] The inner contour of the first inspection port 11 is larger than the outer contour of the cross-section of the heat storage body 31; this means that the first inspection port 11 can at least allow the heat storage body 31 to pass through, thereby facilitating the transportation of the heat storage body 31. As long as the first inspection port 11 is larger than the heat storage body 31, it includes the possibility that the first inspection port 11 can be larger than an object larger than the heat storage body 31, such as tooling for transporting the heat storage body 31. Furthermore, the size of the first inspection port 11 can be sufficient for personnel to enter and exit.

[0053] The regenerative combustion furnace provided in this application introduces waste gas into the combustion chamber 3 via a gas path system 2 for combustion. This decomposes the waste gas into environmentally friendly gases, such as carbon dioxide and water. The heat generated by combustion is absorbed by a heat storage body 31, which can be used to preheat subsequent waste gas, reducing energy consumption. A first inspection port 11 is located at the top of the furnace body 1, and the inner contour of the first inspection port 11 is larger than the outer contour of the heat storage body 31. When maintenance or repair of the heat storage body 31 is required, it can be hoisted out through the first inspection port 11 at the top of the furnace body 1, making operation very convenient. Compared to solutions with inspection ports on the side walls, the first inspection port 11 at the top allows for hoisting, providing more convenient tool support for operations, reducing manual intervention, and facilitating operation and installation. Moreover, since the first inspection port 11 is located at the top of the furnace body 1, when workers enter the furnace body 1, the first inspection port 11 can provide strong ventilation, preventing harm to workers due to high temperature or insufficient oxygen, and also helping to improve work efficiency.

[0054] It should be noted that, as is understood, the regenerative combustion furnace provided in this application may also have other structures required for a regenerative combustion furnace, such as an explosion vent. The explosion vent may be equipped with an explosion relief plate, which will automatically rupture and release pressure when there is abnormal overpressure inside the furnace body 1, preventing damage to the structure of the furnace body 1.

[0055] In some embodiments of this application, the geometric center of the first inspection port 11 is offset from the geometric center of the combustion chamber 3 along the vertical direction Z.

[0056] The geometric center refers to the central position of an object with a certain degree of symmetry, based on its outline shape, such as the center of a circle, the center of a sphere, or the intersection of the two diagonals of a parallelogram. The geometric center determines the core location of an object. In this embodiment, the first inspection port 11 can be a rectangular structure, with its geometric center being the intersection of its two diagonals. The combustion chamber 3 can be a cylinder, cuboid, or similar structure, with its geometric center being the very center.

[0057] The staggered arrangement along the vertical direction Z means that when the geometric center of the first inspection port 11 and the geometric center of the combustion chamber 3 are projected onto the other along the vertical direction Z, the two geometric center chambers do not coincide and are staggered.

[0058] Here, the first access port 11 is offset from the combustion chamber 3, so that the tooling or components hoisted from the first access port 11 can be placed directly on the side plate of the combustion chamber 3 under gravity, without pressing on the combustion chamber 3, for example, without pressing on the heat storage body 31. In this way, the heat storage body 31 can be easily removed or installed, and the heat storage body 31 can be easily switched between the combustion chamber 3 and the tooling.

[0059] In some embodiments of this application, there are at least two combustion chambers 3, and the projection of the geometric center of the first inspection port 11 along the vertical direction Z falls within the gap between the two combustion chambers 3.

[0060] The projection falling within the gap between the two combustion chambers 3 means that the access port is positioned corresponding to the gap between the two combustion chambers 3. With the geometric center of the first access port 11 corresponding to the gap between the two combustion chambers 3, the coverage area of ​​the first access port 11 can be entirely within this gap, or it can partially overlap with a portion of the combustion chamber 3. Specifically, if the coverage area of ​​the first access port 11 is entirely within this gap, that is, the first access port 11 is completely offset from the combustion chamber 3, this ensures that tooling entering through the access port will not obstruct the combustion chamber 3. If the first access port 11 partially overlaps with a portion of the combustion chamber 3, this can improve the ventilation effect of the first access port 11 on the combustion chamber 3 and facilitate the setting of the size of the first access port 11 to ensure sufficient width for the corresponding tooling to pass through.

[0061] Here, when there are multiple combustion chambers 3, in order to facilitate layout and make better use of internal space, the corresponding position of the first inspection port 11 along the vertical direction Z is between two adjacent combustion chambers 3. In this way, two combustion chambers 3 can be easily inspected from both sides of one inspection port, improving space utilization.

[0062] In some embodiments of this application, reference is made to Figure 3There are three combustion chambers 3, which are arranged at intervals along the first direction. There are two first inspection ports 11, and the geometric centers of the two first inspection ports 11 are located in the two gaps between the three combustion chambers 3 respectively.

[0063] "Arranged at intervals along a first direction" means that, in the possible directions in which the combustion chambers 3 can be arranged, there is at least a first direction. In this embodiment, three combustion chambers 3 are arranged along this first direction. For example, the first direction can be any direction extending along a horizontal plane.

[0064] The geometric centers of the two first access ports 11 are located in the two gaps between the three combustion chambers 3, respectively. This means that the combustion chambers 3 and the first access ports 11 are arranged alternately along the first direction. For example, along the first direction, they are arranged in the following order: first combustion chamber 3, first first access port 11, second combustion chamber 3, second first access port 11, and third combustion chamber 3.

[0065] Here, when there are three combustion chambers 3, the first inspection port 11 can be set between two adjacent combustion chambers 3, that is, setting two inspection ports can meet the maintenance needs of three combustion chambers 3.

[0066] In other words, the regenerative combustion furnace in this embodiment can be a three-bed type, and its main equipment can consist of a reaction chamber, three ceramic packing beds, pipelines, nine airflow switching valves, and one heat release (furnace pressure relief) valve. By switching the flow path of the exhaust gas through the switching valves, the three ceramic packing beds can be used alternately, and the internal heat storage body 31 can alternately store heat and preheat lamps, so that the heat energy can be recovered to the maximum extent.

[0067] In the embodiment of the regenerative combustion furnace in this application, which is a three-bed type, the number, location and size of the second maintenance port 12 are determined not only by consideration of convenience and the ability to use necessary tooling, but also by consideration of strength requirements. This application embodiment has determined a scheme of three combustion chambers 3 and two first maintenance ports 11 through simulation and experimental testing of the physical structure, which can meet the strength requirements of the regenerative combustion furnace itself.

[0068] In some embodiments of this application, reference is made to Figure 1 and Figure 2 The regenerative combustion furnace also includes a first operating platform 4, which is located on the top of the furnace body 1 and near the first inspection port 11.

[0069] The first operating table 4 refers to a platform 41 with a certain area, which is a structure for staff to stand on or perform some operations.

[0070] "Close to the first inspection port 11" means that the first operating platform 4 is relatively close to the first inspection port 11, which makes it convenient for staff to perform some operations at the first inspection port 11.

[0071] Here, the first operating platform 4 is set on the top of the furnace body 1, which makes it convenient for staff to carry out operations near the first inspection port 11, thus improving the safety of the staff.

[0072] To facilitate staff access to the first operating platform 4 from the ground, in some embodiments of this application, reference is made to... Figure 2 The regenerative combustion furnace also includes a first stepped structure 5, which is set on the side wall of the furnace body 1, with its upper end connected to the first operating platform 4 and its lower end connected to the ground.

[0073] The lower end of the first step structure 5 can be connected to the ground, meaning that the first step structure 5 can be directly or indirectly connected to the ground so that workers can reach the first operating platform 41 from the ground.

[0074] Because of the first step structure 5, staff can easily reach the first operating platform 4, further improving the convenience of equipment maintenance and repair.

[0075] In some embodiments of this application, reference is made to Figure 2 The furnace body 1 has a second inspection port 12 on its side wall. The regenerative combustion furnace also includes a second operating platform 6 and a second stepped structure 7. The second operating platform 6 is located outside the side wall of the furnace body 1 where the second inspection port 12 is located. The second stepped structure 7 connects the second operating platform 6 to the ground. The lower end of the first stepped structure 5 is connected to the second operating platform 6.

[0076] The second inspection port 12 can be located on the side wall of the furnace body 1 and can be used as a regular inspection port. The size of its opening can also be set according to actual needs. For example, the size of the second inspection port 12 can allow personnel to enter the furnace body 1 to perform maintenance operations.

[0077] The second operating platform 6 is located outside the side wall of the furnace body 1 where the second inspection port 12 is located. This means that various operations on the second inspection port 12 can be conveniently performed on the second operating platform 6. For example, the second operating platform 6 can be located at least on the side wall of the furnace body 1 where the second inspection port 12 is located, or the second operating platform 6 can be located around the outside of the side wall of the furnace body 1.

[0078] The lower end of the first step structure 5 is connected to the second operating platform 6, meaning that the lower end of the first step structure 5 can be connected to the ground through the second operating platform 6 and the second step structure 7.

[0079] Here, a second inspection port 12 is provided on the side wall of the furnace body 1, facilitating horizontal operation and maintenance. Workers can also easily enter and exit the furnace body 1 through the second inspection port 12. The second operating platform 6 provides support when working outside the second inspection port 12. Simultaneously, the second stepped structure 7 allows workers to easily access the second operating platform 41 from the ground. Based on this, the second operating platform 41 and the second stepped structure 7 can be used to connect the first stepped structure 5 only to the first and second operating platforms 41, and then the second stepped structure 7 can connect it to the ground. This reduces the overall structure of the equipment, lowers costs, and creates a compact structure that is easy to arrange within the factory.

[0080] It should be noted that the first step structure 5 and the second step structure 7 can be various structures that allow workers to ascend and descend, such as stairs, ladders, etc. (Refer to...) Figure 2 The first step structure 5 can be a ladder, and the second step structure 7 can be a staircase.

[0081] To protect the case of the staff at the first operating console 4, refer to Figure 2 The upper surface of the furnace body 1 includes a platform 41, and the first operating table 4 includes a fence 42 surrounding the platform 41.

[0082] The upper surface of furnace body 1 includes platform 41, which refers to... Figure 4 The upper surface of the furnace body 1 has a platform 41. This platform 41 can occupy a part of the upper surface of the furnace body 1 or the entire upper surface of the furnace body 1. The specific size and position can be set according to actual needs. Moreover, the platform 41 belongs to the upper surface of the furnace body 1 and is not an additional platform 41 set outside the furnace body 1.

[0083] The fence 42 can be either openwork or solid. To reduce costs, ensure convenience, facilitate installation, meet safety and strength requirements, and provide good visibility, the fence 42 can be constructed from a metal frame structure.

[0084] In this embodiment, a platform 41 is provided on the upper surface of the furnace body 1 as the bearing surface of the first operating platform 41, which facilitates installation and eliminates the need for an additional platform 41, thus reducing costs. Furthermore, a fence 42 is installed around this platform 41 to enhance safety.

[0085] It should be noted that, in order to improve safety, a fence 42 can also be installed around the second operating platform 6.

[0086] When the regenerative combustion furnace is working, the internal temperature is very high and a relatively sealed environment needs to be maintained. Therefore, in some embodiments of this application, the regenerative combustion furnace also includes a first cover plate, which is disposed over the first inspection port 11 and is used to open or close the first inspection port 11.

[0087] The first cover plate is used to open or close the first inspection port 11. This means that the structure of the first cover plate can be various, as long as it can open or close the first inspection port 11. For example, the first cover plate and the furnace body 1 are hinged by a hinge structure, and the first cover plate opens or closes the first inspection port 11 by rotating on one side; or, the first cover plate switches between the first inspection port 11 and the outside of the first inspection port 11 by sliding, moving, rotating or other actions on the plane, so as to open or close the first inspection port 11.

[0088] In this embodiment, due to the presence of a first cover plate, the first inspection port 11 is closed when not under maintenance, maintaining a relatively enclosed internal space for combustion within the furnace body 1. When maintenance is required or air circulation needs to be improved, the first cover plate can be operated to open the first inspection port 11.

[0089] It should be noted that a second cover plate can also be installed at the corresponding position of the second inspection port 12 to open or close the second inspection port 12.

[0090] When maintenance is required on internal components of the regenerative combustion furnace, such as the regenerator 31, it can be handled by personnel or assisted by supporting tools and fixtures to improve efficiency. In some embodiments of this application, the regenerative combustion furnace also includes a transport fixture 8, the inner contour of the first inspection port 11 being larger than the outer contour of the cross-section of the transport fixture 8, and the transport fixture 8 being used to support and transport the regenerator 31.

[0091] The transport fixture 8 may include various fixtures for transporting components of the regenerative combustion furnace. This fixture is designed and used in conjunction with the regenerative combustion furnace, or it may be a dedicated fixture.

[0092] The inner contour of the first inspection port 11 is larger than the outer contour of the transport fixture 8, which means that the transport fixture 8 can smoothly enter the furnace body 1 or exit the furnace body 1 through the first inspection port 11. This facilitates the transport of components inside the furnace body 1, such as the heat storage body 31.

[0093] Because it includes the matching transport fixture 8, the transport fixture 8 can pass smoothly through the first inspection port 11, which can facilitate the transport and handling of components inside the furnace body 1, such as the heat storage body 31.

[0094] It should be noted that the transport equipment 8 can be a special basket with a space inside to accommodate the heat storage body 31. The volume can be 0.5 cubic meters, and it can accommodate a large number of heat storage bodies 31 at a time. For example, the rated load can be 1000 kg.

[0095] Based on the regenerative combustion furnace of the present application embodiment, a maintenance method can be provided for maintaining the regenerative combustion furnace. The regenerative combustion furnace further includes a transport fixture 8. Based on this, referring to... Figure 6 The maintenance method includes: S1: Lower the transport fixture 8 into the regenerative combustion furnace from the first maintenance port 11; S2: Remove the heat storage body 31 and load it into the transport fixture 8; S3: Lift the transport equipment 8 through the first inspection port 11.

[0096] Lowering the transport fixture 8 from the first inspection port 11 refers to using gravity or other means to allow the transport fixture 8 to pass through the first inspection port 11 and move into the regenerative combustion furnace. This operation can be performed using hoisting equipment, which can be a mobile hoisting vehicle or a hoisting mechanism installed on top of the regenerative combustion furnace inside the plant.

[0097] Since the first inspection port 11 is located at the top of the furnace body 1, when maintenance of the regenerator 31 is required, a hoisting device can be used to lift the transport fixture 8, which is then lowered through the first inspection port 11 into the regenerable combustion furnace. Next, the dismantled regenerator 31 can be loaded into the transport fixture 8, and the hoisting device can then lift the transport fixture 8 from the regenerable combustion furnace to remove the regenerator 31. This allows for cleaning and maintenance operations on the regenerator 31. After cleaning and maintenance, the transport fixture 8 can still be lifted using the hoisting device to transport the regenerator 31 back into the regenerable combustion furnace for installation. The operation is simple and convenient for maintenance and component handling.

[0098] It should be noted that, to improve safety when lowering or lifting the transport fixture 8, anti-sway positioning ropes can be installed in addition to the lifting ropes to prevent the transport fixture 8 from swaying during the lifting process. The anti-sway positioning rope can be a nylon rope with a diameter greater than 8 mm.

[0099] In addition, before or after lowering the transport fixture 8, workers can enter the regenerative combustion furnace to facilitate the dismantling and handling of the heat storage body 31. Entering the furnace before lowering the transport fixture 8 allows workers to observe and assist in the process, ensuring more accurate placement. Entering after lowering the transport fixture 8 avoids the safety hazard of workers being struck by it and also reduces the duration of work time inside the furnace, minimizing the possibility of injury.

[0100] Reference Figure 7 The lowering of the transport fixture 8 from the first inspection port 11 into the regenerative combustion furnace may include: S11: The transport fixture 8 is lowered into the regenerative combustion furnace through the first inspection port 11, and the transport fixture 8 is placed staggered from the regenerator 31.

[0101] When the transport fixture 8 is lowered into the regenerative combustion furnace, it is staggered from the heat storage body 31, so that the transport fixture 8 does not press on top of the heat storage body 31, which will not affect the disassembly and loading of the heat storage body 31 into the transport fixture 8, thus improving work efficiency.

[0102] It should be noted that steps S1, S2, and S3 in the above maintenance method involve removing and transporting the heat storage body 31 from the regenerative combustion furnace. Based on this, the maintenance method may also include: The heat storage body 31 is cleaned, repaired, or replaced outside the regenerative combustion furnace; The heat storage body 31 is moved into the transport fixture 8; The transport equipment 8 is lowered into the regenerative combustion furnace from the first maintenance port 11; Remove the heat storage body 31 from the transport fixture 8 and install it in the corresponding position; The unloaded transport tool 8 is lifted and passes through the first inspection port 11, thus completing the entire inspection process.

[0103] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A regenerative combustion furnace, characterized in that, include: The furnace body has an internal cavity, and a first inspection port is provided on the top of the furnace body; A gas supply system, connected to the furnace body, includes an exhaust gas duct; A combustion chamber is disposed inside the furnace body and connected to the gas passage system. A heat storage body is provided inside the combustion chamber. The combustion chamber is used to burn the waste gas that enters it through the waste gas pipe. The inner contour of the first inspection port is larger than the outer contour of the heat storage body.

2. The regenerative combustion furnace according to claim 1, characterized in that, In the vertical direction, the geometric center of the first inspection port is offset from the geometric center of the combustion chamber.

3. The regenerative combustion furnace according to claim 2, characterized in that, The combustion chambers are at least two, and in the vertical direction, the projection of the geometric center of the first inspection port falls within the gap between the two combustion chambers.

4. The regenerative combustion furnace according to claim 3, characterized in that, There are three combustion chambers, which are spaced apart along a first direction. There are two first inspection ports, and the geometric centers of the two first inspection ports are located in two gaps between the three combustion chambers.

5. The regenerative combustion furnace according to claim 1, characterized in that, The regenerative combustion furnace also includes a first operating platform, which is located on the top of the furnace body and near the first inspection port.

6. The regenerative combustion furnace according to claim 5, characterized in that, The regenerative combustion furnace also includes a first stepped structure, which is disposed on the side wall of the furnace body, with its upper end connected to the first operating platform and its lower end connected to the ground.

7. The regenerative combustion furnace according to claim 6, characterized in that, The furnace body has a second maintenance opening on its side wall. The regenerative combustion furnace also includes a second operating platform and a second stepped structure. The second operating platform is located outside the side wall of the furnace body where the second maintenance opening is located. The second stepped structure connects the second operating platform to the ground. The lower end of the first stepped structure is connected to the second operating platform.

8. The regenerative combustion furnace according to claim 5, characterized in that, The upper surface of the furnace body includes a platform, and the first operating table includes a fence surrounding the platform.

9. The regenerative combustion furnace according to any one of claims 1 to 8, characterized in that, The regenerative combustion furnace also includes a first cover plate, which is placed over the first inspection port and is used to open or close the first inspection port.

10. The regenerative combustion furnace according to any one of claims 1 to 8, characterized in that, The regenerative combustion furnace also includes a transport fixture, the inner contour of the first inspection port being larger than the outer contour of the cross-section of the transport fixture, and the transport fixture being used to carry and transport the regenerator.

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