An electrically heated regenerative thermal oxidizer with dynamic control of thermal balance

By adopting thermal equilibrium dynamic control technology in an electric heating thermal storage oxidation furnace, multiple temperature sensors and heating components are used to achieve accurate temperature control in different areas of the reaction layer, the thermal field imbalance caused by uneven flow of VOCs is solved, and the oxidation reaction efficiency and equipment safety and reliability are improved.

CN119617437BActive Publication Date: 2025-06-17SHANGHAI YACHE ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202510147279.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-06-17
Estimated Expiration
2045-02-11

AI Technical Summary

Technical Problem

In the electric heating thermal storage oxidation furnace, due to the uneven flow of VOCs exhaust gas, the thermal field of the reaction layer is unbalanced, resulting in a decrease in oxidation reaction efficiency and risk of equipment damage.

Method used

Thermal equilibrium dynamic control technology is adopted to monitor the temperature of each area of ​​the heat storage layer in real time through multiple temperature sensors, and accurately heat the corresponding areas of the reaction layer through heating components to ensure that each area obtains appropriate heating volume and achieve accurate temperature control in different areas in the reaction layer.

Benefits of technology

It effectively improves local heat loss or overheating problems caused by uneven exhaust gas flow in traditional equipment, improves the heat utilization efficiency of the entire equipment and the stability of the oxidation reaction, extends the service life of the equipment, and reduces safety hazards, such as blown electric heating wires.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application provides an electrically heated regenerative oxidation furnace with dynamic control of thermal balance, which includes a furnace body, a lift valve, a regenerative layer, a reaction layer, a heating component and a temperature sensor; the reaction layer and the regenerative layer are both installed in the furnace body, there are two groups of regenerative layers, and the two groups of regenerative layers are respectively located on both sides of the reaction layer, and the waste gas sequentially passes through one of the groups of regenerative layers, the reaction layer and the other group of regenerative layers; the lift valve is connected to the furnace body, and the lift valve is used to switch the flow path of the waste gas so that the waste gas alternately enters the reaction layer from the two groups of regenerative layers; there are multiple temperature sensors and heating components, and the multiple temperature sensors are used to detect the temperatures of different regions of the regenerative layer; the heating components are connected to the reaction layer, and the multiple heating components heat different regions of the reaction layer, and the heating components and the temperature sensors are electrically connected. The present application can make the thermal field in the reaction layer reach equilibrium.
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Description

Technical Field

[0001] This application relates to the technical field of regenerative thermal oxidizers, and in particular to an electrically heated regenerative thermal oxidizer with dynamic control of thermal balance. Background Art

[0002] The ROT furnace, namely the regenerative thermal oxidizer, also known as the regenerative thermal incinerator, is an efficient waste gas treatment device for treating volatile organic compounds (VOCs). The electrically heated regenerative thermal oxidizer (RTO-E) is a special regenerative thermal oxidizer that uses electric heating to treat VOCs waste gas. Its principle is to heat the VOCs waste gas so that the organic matter in the VOCs waste gas is oxidized and decomposed into carbon dioxide and water, thereby achieving the purpose of purifying the VOCs waste gas.

[0003] In the related art, the electrically heated regenerative thermal oxidizer generally includes a furnace body, a lift valve, a regenerative layer, and a reaction layer. The furnace body is provided with an air inlet and an exhaust outlet. The regenerative layer and the reaction layer are both installed in the furnace body. The reaction layer is located in the middle of the furnace body. There are two groups of regenerative layers, and the two groups of regenerative layers are respectively located on the top side and the bottom side of the reaction layer. Electric heating wires are installed in the reaction layer. The VOCs waste gas enters the furnace body from the air inlet, and the lift valve can switch the flow path of the VOCs waste gas. In the first stage, the lift valve makes the VOCs waste gas pass through the regenerative layer on the top side first. The regenerative layer on the top side preheats the VOCs waste gas. The preheated VOCs waste gas enters the reaction layer, and the electric heating wires heat the reaction layer, so that the VOCs waste gas undergoes an oxidation reaction in the reaction layer. Subsequently, the VOCs waste gas passes through the regenerative layer on the bottom side and is discharged from the exhaust outlet. The VOCs waste gas makes the regenerative layer on the bottom side heat up and store heat. In the second stage, the lift valve makes the VOCs waste gas pass through the regenerative layer on the bottom side first. The regenerative layer on the bottom side preheats the VOCs waste gas. The preheated VOCs waste gas undergoes an oxidation reaction in the reaction layer. Subsequently, the VOCs waste gas passes through the regenerative layer on the top side and is discharged from the exhaust outlet. The VOCs waste gas makes the regenerative layer on the top side heat up and store heat. The first stage and the second stage form a complete working cycle, which can continuously treat the VOCs waste gas.

[0004] The electric heating wires in the reaction layer of the electric heating regenerative oxidation furnace adopt an overall heating control scheme. During operation, the VOCs waste gas passes through the regenerative layer for preheating and then enters the reaction layer for oxidation reaction. However, when the VOCs waste gas passes through the regenerative layer, there are different flow rates in different regions, that is, the VOCs waste gas does not pass through the regenerative layer evenly. This will cause the heat loss of the regenerative layer in the region with a large flow rate of the VOCs waste gas to be too fast, and it is unable to preheat the subsequent VOCs waste gas. The part of the VOCs waste gas that cannot be preheated in advance reaches the reaction layer. With the oxidation reaction time unchanged, the VOCs waste gas is discharged from the reaction layer before all of it is completely reacted, resulting in a decrease in the oxidation reaction efficiency of the equipment. For the region with a small flow rate of the VOCs waste gas in the regenerative layer, the temperature of the VOCs waste gas will exceed the preheating temperature and enter the reaction layer. When the electric heating wires uniformly supply heat to the reaction layer, the heat consumption of the reaction layer in this region decreases. Over time, the temperature of the reaction layer in this region will gradually increase, and the electric heating wires in this region will be at risk of melting. Since the uneven fluid field of the VOCs waste gas will cause the balance of the thermal field in the reaction layer to be broken, this will lead to a decrease in the oxidation reaction efficiency of the equipment and even equipment damage. Summary of the Invention

[0005] In order to improve the situation where the balance of the thermal field in the reaction layer is broken, the present application provides an electric heating regenerative oxidizer with dynamic thermal balance control.

[0006] The present application provides an electric heating regenerative oxidizer with dynamic thermal balance control, adopting the following technical solutions:

[0007] An electric heating regenerative oxidizer with dynamic thermal balance control includes a furnace body, a lift valve, a regenerative layer, a reaction layer, a heating assembly, and a temperature sensor; the reaction layer and the regenerative layer are both installed in the furnace body, there are two groups of the regenerative layers, and the two groups of the regenerative layers are respectively located on both sides of the reaction layer. The waste gas sequentially passes through one group of the regenerative layers, the reaction layer, and the other group of the regenerative layers; the lift valve is connected to the furnace body, and the lift valve is used to switch the flow path of the waste gas so that the waste gas alternately enters the reaction layer from the two groups of the regenerative layers;

[0008] There are multiple temperature sensors and multiple heating assemblies. The multiple temperature sensors are used to detect the temperatures of different regions of the regenerative layer; the heating assembly is connected to the reaction layer, and the multiple heating assemblies heat different regions of the reaction layer, and the heating assembly and the temperature sensor are electrically connected.

[0009] By adopting the above technical solution, multiple temperature sensors can monitor the temperature of each area of the heat storage layer in real time, and then precisely heat the corresponding area of the reaction layer through the heating component, ensuring that each area of the reaction layer can obtain an appropriate heating amount, and enabling precise temperature control of different areas within the reaction layer. This dynamic adjustment mechanism effectively improves the problems of local heat loss or overheating caused by uneven exhaust gas flow in traditional equipment, enhances the heat utilization efficiency of the entire equipment and the stability of the oxidation reaction, and extends the service life of the equipment. At the same time, by independently regulating the temperature of different areas, potential safety hazards caused by excessive temperature in some areas, such as the fusing of electric heating wires, are reduced, improving the safety and reliability of the equipment.

[0010] Optionally, the heating component includes a heating wire and a power modulator. The heating wire is connected inside the reaction layer, and the power modulator is electrically connected to the heating wire. The power modulator is used to control the power of the heating wire.

[0011] By adopting the above technical solution, the power modulator can adjust the power of the heating wire according to the temperature information fed back by the temperature sensor, ensuring that the heating amount of each area of the reaction layer matches the corresponding exhaust gas flow rate, and reducing problems such as local overheating or insufficient preheating caused by uneven flow. This not only improves the thermal energy utilization efficiency of the entire equipment but also ensures the complete oxidation of the exhaust gas within the reaction layer, enhancing the overall processing capacity and operating stability of the equipment.

[0012] Optionally, there are three groups of the heating components, and the three groups of heating components are evenly distributed inside the reaction layer.

[0013] By adopting the above technical solution, the three groups of heating components are evenly distributed inside the reaction layer, which is convenient for installation and debugging, can reduce problems such as local overheating or insufficient heating, improve the temperature uniformity of the entire reaction layer, maintain the balance of the thermal field in the reaction layer, and thus enhance the oxidation reaction efficiency of the exhaust gas and the overall performance of the equipment.

[0014] Optionally, the lifting valve includes a lifting drive source, a connecting rod, a sealing plate, and a flow channel plate; the lifting drive source is connected to the furnace body, the connecting rod is respectively connected to the lifting drive source and the sealing plate, the flow channel plate is connected inside the furnace body, and the exhaust gas passes through the flow channel plate and enters the heat storage layer; one sealing plate corresponds to two flow channel plates, and the lifting drive source drives the sealing plate to move through the connecting rod, so that the sealing plate alternately blocks the two flow channel plates.

[0015] By adopting the above technical solution, when the driving source drives the sealing plate to move through the connecting rod, the sealing plate can alternately block the two flow channel plates, thereby changing the flow path of the waste gas. When the heat storage layer on one side of the reaction layer reaches the predetermined heat storage temperature, the lifting valve switches the flow path of the waste gas, so that the waste gas enters the reaction layer from the heat storage layer on the other side of the reaction layer, enabling the two groups of heat storage layers to alternately store heat and release heat.

[0016] Optionally, a bearing plate is connected inside the furnace body, and both the heat storage layer and the reaction layer are connected to the bearing plate.

[0017] By adopting the above technical solution, the positions of the heat storage layer and the reaction layer can be stably fixed inside the furnace body, improving the structural strength of the entire device, and thus ensuring the stability during the operation of the device.

[0018] Optionally, the heat storage layer includes a bearing grid frame and heat storage bodies. The bearing grid frame is connected to the bearing plate, and a plurality of heat storage bodies are provided and installed inside the bearing grid frame.

[0019] By adopting the above technical solution, when installing the heat storage layer, first fixedly connect the bearing grid frame to the bearing plate, and then install the heat storage bodies in the grids of the corresponding bearing grid frames, which is beneficial to the installation and later maintenance and repair of individual heat storage bodies.

[0020] Optionally, the reaction layer includes a support grid frame and reaction blocks. The support grid frame is connected to the bearing plate, and a plurality of reaction blocks are provided and installed inside the support grid frame.

[0021] By adopting the above technical solution, when installing the reaction layer, first fixedly connect the support grid frame to the bearing plate, and then install the reaction blocks in the grids of the corresponding support grid frames, which is beneficial to independent replacement and repair, improving the maintainability and flexibility of the device.

[0022] Optionally, a plurality of the temperature sensors correspond one by one to a plurality of the heat storage bodies in the same plane, and the temperature sensors are used to detect the temperature of each heat storage body in the same plane.

[0023] By adopting the above technical solution, the temperature of each heat storage body in the same plane can be accurately detected, ensuring that the temperature data of each heat storage body is accurate and reliable. The heating power of the corresponding area of the reaction layer can be adjusted in a timely manner, so that the reaction blocks in different areas have heating amounts matching the waste gas flow rate, thereby maintaining the thermal field balance in the reaction layer, improving the oxidation reaction efficiency of the device, and reducing the risk of device performance degradation and damage caused by local overheating or overcooling.

[0024] Optionally, multiple said heating wires correspond one-to-one with multiple said reaction blocks, the heating wires are connected inside the reaction blocks, and the heating wires heat the corresponding reaction blocks.

[0025] By adopting the above technical solution, the one-to-one connection between the heating wires and the reaction blocks is realized, ensuring that each reaction block can obtain precise heat supply, reducing the problems of local overheating or insufficient heating caused by uneven exhaust gas flow in the traditional overall heating method, improving the temperature uniformity and stability of the entire reaction layer, thereby enhancing the oxidation reaction efficiency and the safety performance of the equipment.

[0026] In summary, the present application includes at least one of the following beneficial effects:

[0027] 1. By using temperature sensors to monitor the temperature changes in each area of the heat storage layer in real time and precisely adjusting the power of the heating wires in the corresponding areas of the reaction layer according to the specific temperature data, ensuring that the thermal field in each area of the reaction layer remains balanced, and improving the oxidation reaction efficiency of the exhaust gas;

[0028] 2. The design of the lift valve enables the exhaust gas to flow alternately in two directions, allowing the exhaust gas to be preheated by different heat storage layers each time, making full use of the waste heat resources in the exhaust gas, further optimizing the energy utilization efficiency, and enhancing the overall treatment effect;

[0029] 3. Multiple heat storage bodies correspond one-to-one with multiple reaction blocks, and temperature sensors detect the temperature of the heat storage bodies, thereby controlling the heating amount of the corresponding reaction blocks, enabling the thermal field in the reaction layer to reach balance, improving the problems of local overheating or too low temperature caused by uneven exhaust gas flow in the traditional electric heating regenerative oxidizer, and enhancing the service life and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a front view structural schematic diagram of the first stage of the electric heating regenerative oxidizer according to Embodiment 1 of the present application;

[0031] Figure 2 is a front view structural schematic diagram of the second stage of the electric heating regenerative oxidizer according to Embodiment 1 of the present application;

[0032] Figure 3 is a top view structural schematic diagram of the heating assembly and the reaction layer according to Embodiment 1 of the present application;

[0033] Figure 4 is a top view structural schematic diagram of the furnace body, the heat storage layer, the bearing plate and the temperature sensors according to Embodiment 1 of the present application;

[0034] Figure 5 is a front view structural schematic diagram of the electric heating regenerative oxidizer according to Embodiment 2 of the present application;

[0035] Figure 6 It is a top view structural schematic diagram of the furnace body, regenerative layer, bearing plate and temperature sensor in Embodiment 2 of the present application.

[0036] Explanation of reference numerals: 1. Furnace body; 2. Lift valve; 21. Lift drive source; 22. Connecting rod; 23. Sealing plate; 24. Flow channel plate; 3. Bearing plate; 4. Regenerative layer; 41. Bearing grid frame; 42. Regenerative body; 5. Reaction layer; 51. Support grid frame; 52. Reaction block; 6. Heating assembly; 61. Heating wire; 62. Power modulator; 7. Temperature sensor. Detailed implementation manners

[0037] The following Figures 1 to 6 is to further elaborate on the present application in detail.

[0038] Embodiment 1:

[0039] Embodiment 1 of the present application provides an electrically heated regenerative oxidation furnace with dynamic control of thermal balance.

[0040] Referring to Figure 1 and Figure 2 , the electrically heated regenerative oxidation furnace with dynamic control of thermal balance includes a furnace body 1, a lift valve 2, a bearing plate 3, a regenerative layer 4, a reaction layer 5, a heating assembly 6 and a temperature sensor 7. There are two bearing plates 3, and both of the two bearing plates 3 are fixedly connected inside the furnace body 1. The two bearing plates 3 are arranged at intervals, and both the regenerative layer 4 and the reaction layer 5 are fixedly connected between the two bearing plates 3. There are two groups of regenerative layers 4, and the two groups of regenerative layers 4 are respectively located on the top side and the bottom side of the reaction layer 5.

[0041] Referring to Figure 1 and Figure 2 , the lift valve 2 includes a lift drive source 21, a connecting rod 22, a sealing plate 23 and a flow channel plate 24. In this embodiment, the lift drive source 21 specifically uses a cylinder. The body of the lift drive source 21 is fixedly connected to the outside of the furnace body 1, the connecting rod 22 is fixedly connected to the moving end of the lift drive source 21, the sealing plate 23 is located inside the furnace body 1, and the connecting rod 22 passes through the furnace body 1 and is fixedly connected to the sealing plate 23. An air inlet is provided at one end of the furnace body 1, and an exhaust outlet is provided at the other end of the furnace body 1. There are two lift valves 2, and the two lift valves 2 respectively correspond to the air inlet and the exhaust outlet. For one lift valve 2, there are two flow channel plates 24, the two flow channel plates 24 are arranged at intervals, the flow channel plates 24 are respectively fixedly connected to the furnace body 1 and the bearing plate 3, and the flow channel plates 24 are provided with openings. After the waste gas enters the furnace body 1 from the air inlet, it can sequentially pass through the flow channel plates 24 and the regenerative layer 4 and then enter the reaction layer 5. The lift drive source 21 can drive the sealing plate 23 to move through the connecting rod 22, so that the sealing plate 23 can alternately block the two flow channel plates 24, so that the waste gas can alternately enter the reaction layer 5 from the two groups of regenerative layers 4.

[0042] Reference Figure 2 and Figure 3 As shown in FIGS. 1 and 2, the heating assembly 6 includes a heating wire 61 and a power modulator 62. The heating wire 61 is fixedly connected within the reaction layer 5, and the power modulator 62 is located outside the furnace body 1. The power modulator 62 is electrically connected to the heating wire 61. The power modulator 62 can control the heating power of the heating wire 61, and the heating wire 61 can heat the reaction layer 5 to provide the heat required for the oxidation reaction of the waste gas within the reaction layer 5. Multiple groups of heating assemblies 6 are provided. In this embodiment, specifically three groups of heating assemblies 6 are provided, dividing the reaction layer 5 into three regions. The three regions of the reaction layer 5 respectively correspond to the three groups of heating assemblies 6 one by one, and the three groups of heating assemblies 6 can independently heat the corresponding regions of the reaction layer 5. Each group of heating assemblies 6 is provided with three heating wires 61 and one power modulator 62, and one power modulator 62 synchronously controls the heating powers of the three heating wires 61.

[0043] Reference Figure 3 and Figure 4 As shown in FIGS. 1 and 2, in this embodiment, six temperature sensors 7 are provided. Each heat storage layer 4 corresponds to three temperature sensors 7. The probes of the temperature sensors 7 extend into the furnace body 1 and contact the heat storage layer 4. The temperature sensors 7 are electrically connected to the heating assembly 6. The heat storage layer 4 is divided into three regions. The three regions of the heat storage layer 4 correspond to the three regions of the reaction layer 5 one by one, and the three regions of the heat storage layer 4 respectively correspond to the three temperature sensors 7 one by one. The three temperature sensors 7 can respectively detect the temperatures of the three regions of the heat storage layer 4.

[0044] Reference Figure 3 and Figure 4 As shown in FIGS. 1 and 2, when the waste gas passes through the heat storage layer 4, there are situations where the flow rates in different regions are different. For the region of the heat storage layer 4 through which the waste gas flow rate is large, the temperature sensor 7 detects that the temperature of the heat storage layer 4 in this region drops rapidly, then the corresponding heating assembly 6 increases the heating quantity, so that the temperature of the corresponding region of the reaction layer 5 rises, which is beneficial to the more complete oxidation reaction of the waste gas within the reaction layer 5 in this region. For the region of the heat storage layer 4 through which the waste gas flow rate is small, the temperature sensor 7 detects that the temperature of the heat storage layer 4 in this region drops slowly, then the corresponding heating assembly 6 reduces the heating quantity, so that the temperature of the corresponding region of the reaction layer 5 decreases accordingly, reducing the situation of overheating in the reaction layer 5 in this region. According to the temperature change conditions of each region of the heat storage layer 4 detected by the temperature sensor 7, the heating quantity of the corresponding heating assembly 6 is adjusted accordingly, so as to make the thermal field of the reaction layer 5 reach equilibrium.

[0045] Reference Figure 1, the treatment of waste gas in this application has two stages. In the first stage, for the side close to the air inlet of the furnace body 1, the lifting drive source 21 drives the sealing plate 23 to block the flow channel plate 24 at the bottom side inside the furnace body 1; for the side close to the exhaust port of the furnace body 1, the lifting drive source 21 drives the sealing plate 23 to block the flow channel plate 24 at the top side inside the furnace body 1. The waste gas enters from the air inlet, and then the waste gas passes through the heat storage layer 4 at the top side and enters the reaction layer 5. The heat storage layer 4 at the top side preheats the waste gas, and the preheated waste gas undergoes an oxidation reaction in the reaction layer 5. Finally, the waste gas passes through the heat storage layer 4 at the bottom side and is discharged from the exhaust port. The waste gas heats the heat storage layer 4 at the bottom side, and the heat storage layer 4 at the bottom side accumulates heat.

[0046] Reference Figure 2 , in the second stage, for the side close to the air inlet of the furnace body 1, the lifting drive source 21 drives the sealing plate 23 to block the flow channel plate 24 at the top side inside the furnace body 1; for the side close to the exhaust port of the furnace body 1, the lifting drive source 21 drives the sealing plate 23 to block the flow channel plate 24 at the bottom side inside the furnace body 1. The waste gas enters from the air inlet, and then the waste gas passes through the heat storage layer 4 at the bottom side and enters the reaction layer 5. The heat storage layer 4 at the bottom side preheats the waste gas, and the preheated waste gas undergoes an oxidation reaction in the reaction layer 5. Finally, the waste gas passes through the heat storage layer 4 at the top side and is discharged from the exhaust port. The waste gas heats the heat storage layer 4 at the top side, and the heat storage layer 4 at the top side accumulates heat.

[0047] The implementation principle of Embodiment 1 of this application, a heat balance dynamically controlled electric heating regenerative oxidation furnace, is as follows: The lifting valve 2 can switch the flow path of the waste gas, enabling the waste gas to alternately enter the reaction layer 5 from the two heat storage layers 4, so that the two heat storage layers 4 can alternately preheat the waste gas and can alternately accumulate heat. The temperature sensor 7 detects the temperature of each region of the heat storage layer 4, thereby judging the flow rate of the waste gas in each region of the heat storage layer 4, and controlling the heating component 6 to provide an appropriate heating amount to the corresponding region of the reaction layer 5, so that the thermal field of the reaction layer 5 reaches equilibrium.

[0048] Embodiment 2:

[0049] Embodiment 2 of this application provides a heat balance dynamically controlled electric heating regenerative oxidation furnace. The difference between Embodiment 2 and Embodiment 1 of this application lies in:

[0050] Reference Figure 5 And Figure 6 , in this embodiment, the heat storage layer 4 includes a bearing grid frame 41 and a heat storage body 42. The bearing grid frame 41 is fixedly connected between two bearing plates 3. The bearing grid frame 41 is in a grid shape, and the heat storage body 42 is fixedly connected inside the bearing grid frame 41. The heat storage body 42 is specifically a ceramic heat storage body. The number of temperature sensors 7 corresponds one-to-one with the number of heat storage bodies 42 in the same horizontal plane.

[0051] ReferenceFigure 5 and Figure 6 , the reaction layer 5 includes a support grid 51 and reaction blocks 52. The support grid 51 is fixedly connected between two bearing plates 3. The support grid 51 is grid-shaped. The reaction blocks 52 are fixedly connected within the bearing grid 41. The projections of a single regenerator 42 and a single reaction block 52 can overlap. The number of heating wires 61 corresponds one-to-one to the reaction blocks 52, and the heating wires 61 are fixedly connected within the reaction blocks 52.

[0052] Reference Figure 5 and Figure 6 , in this embodiment, the bearing grid 41 divides the regenerative layer 4 into multiple regions. The temperature sensors 7 detect the temperatures of the regenerators 42 in each region, and can judge the magnitude of the gas flow rate in the regenerators 42 in each region. The support grid 51 divides the reaction layer 5 into multiple regions. According to the temperature data of the regenerators 42 detected by the temperature sensors 7, the heating wires 61 provide heat to the corresponding reaction blocks 52, making the temperature control of each region of the reaction layer 5 more precise, and facilitating the thermal field of the reaction layer 5 to reach equilibrium.

[0053] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An electrically heated thermal storage oxidation furnace with dynamic thermal balance control, characterized in that: The invention comprises a furnace body (1), a lifting valve (2), a heat storage layer (4), a reaction layer (5), a heating component (6) and a temperature sensor (7); the reaction layer (5) and the heat storage layer (4) are both installed in the furnace body (1); two groups of the heat storage layer (4) are provided, and the two groups of the heat storage layer (4) are respectively located on both sides of the reaction layer (5); the exhaust gas passes through one group of the heat storage layer (4), the reaction layer (5) and the other group of the heat storage layer (4) in sequence; the lifting valve (2) is connected to the furnace body (1); the lifting valve (2) is used to switch the flow path of the exhaust gas, so that the exhaust gas enters the reaction layer (5) alternately from the two groups of the heat storage layers (4); The temperature sensor (7) and the heating component (6) are both provided in plurality, and the plurality of temperature sensors (7) are used to detect the temperature of different regions of the heat storage layer (4); the heating component (6) is connected to the reaction layer (5), and the plurality of heating components (6) heat different regions of the reaction layer (5); the heating component (6) and the temperature sensor (7) are electrically connected; The heat storage layer (4) comprises a bearing grid frame (41) and a heat storage body (42); a bearing plate (3) is connected to the furnace body (1); the bearing grid frame (41) is connected to the bearing plate (3); a plurality of heat storage bodies (42) are provided; and the heat storage bodies (42) are installed in the bearing grid frame (41); The reaction layer (5) comprises a supporting grid frame (51) and a reaction block (52); the supporting grid frame (51) is connected to the carrying plate (3); a plurality of reaction blocks (52) are provided, and the reaction blocks (52) are installed in the supporting grid frame (51); a single heat storage body (42) and a projection of a single reaction block (52) overlap; The plurality of temperature sensors (7) correspond one-to-one to the plurality of heat storage bodies (42) located in the same plane, and the temperature sensor (7) is used to detect the temperature of each of the heat storage bodies (42) located in the same plane; The heating component (6) comprises a heating wire (61), a plurality of the heating wires (61) corresponding one-to-one to a plurality of the reaction blocks (52), the heating wire (61) being connected inside the reaction block (52), and the heating wire (61) heating each of the reaction blocks (52).

2. The electrically heated thermal storage oxidation furnace with dynamic heat balance control according to claim 1, characterized in that: The heating component (6) further comprises a power modulator (62), the heating wire (61) is connected to the reaction layer (5), the power modulator (62) is electrically connected to the heating wire (61), and the power modulator (62) is used to control the power of the heating wire (61).

3. The electrically heated thermal storage oxidation furnace with dynamic heat balance control according to claim 1, characterized in that: The heating components (6) are provided in three groups, and the three groups of heating components (6) are evenly distributed in the reaction layer (5).

4. The electrically heated thermal storage oxidation furnace with dynamic heat balance control according to claim 1, characterized in that: The lifting valve (2) comprises a lifting drive source (21), a connecting rod (22), a sealing plate (23) and a flow channel plate (24); the lifting drive source (21) is connected to the furnace body (1), the connecting rod (22) is respectively connected to the lifting drive source (21) and the sealing plate (23), the flow channel plate (24) is connected to the furnace body (1), and the exhaust gas passes through the flow channel plate (24) and enters the heat storage layer (4); one sealing plate (23) corresponds to two flow channel plates (24), and the lifting drive source (21) drives the sealing plate (23) to move through the connecting rod (22), so that the sealing plate (23) alternately blocks the two flow channel plates (24).

5. The electrically heated thermal storage oxidation furnace with dynamic heat balance control according to claim 2, characterized in that: The heat storage layer (4) and the reaction layer (5) are both connected to the supporting plate (3).

Citation Information

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