Heat exchange device for treating organic waste gas by rotating wheel
By diverting the high-temperature gas after catalytic oxidation into two heat exchangers, the problem of low heat exchange efficiency in existing technologies is solved, achieving more efficient and economical waste gas treatment, especially significantly reducing operating costs when treating medium-concentration waste gas.
Patent Information
- Application Number
- CN202520422519.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-11
AI Technical Summary
In existing rotary turbine + catalytic oxidation technology, the temperature of high-temperature gas decreases after passing through the first-stage heat exchanger, resulting in limited heat exchange efficiency. An electric heater is required to assist, which increases the system's energy consumption.
By adopting a split-flow method, the high-temperature gas after catalytic oxidation is fed into two heat exchangers respectively to heat the desorbed gas and preheat the desorbed waste gas, thereby increasing the heat exchange temperature difference and reducing equipment costs and operating energy consumption.
It improves the heat exchange efficiency of the system and reduces operating energy consumption and equipment costs, especially in the treatment of medium-concentration waste gas, making it more energy-efficient and economical.
Smart Images
Figure CN223815017U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to waste gas environmental protection treatment technical field, concretely relates to a heat exchange device of organic waste gas is handled with the adoption of runner. BACKGROUND
[0002] The existing runner+ catalytic oxidation technology mostly adopts the series secondary heat exchange mode, which is to heat the gas for the desorption of the runner by the high-temperature gas after the catalytic oxidation through the primary heat exchanger first, and then preheat the gas after the desorption and before the catalytic oxidation by the high-temperature gas after the temperature reduction through the secondary heat exchanger.
[0003] Using this heat exchange mode, the temperature of the hot side gas entering the secondary heat exchanger is low after the high-temperature gas is reduced in temperature after the primary heat exchange, and the heat exchange efficiency of the heat exchanger is limited, so when the heat exchange temperature difference is lower than 60 DEG C, the plate heat exchanger is difficult to achieve, and an electric heater needs to be started again to ensure that the gas entering the catalytic oxidation reaches the ignition temperature. Greatly reduce the heat exchange efficiency of the system and increase the operating energy consumption of the system. The problem needs to be solved urgently. UTILITY MODEL CONTENT
[0004] In view of the problems existing in the prior art, the utility model provides a heat exchange device for treating organic waste gas with the adoption of a runner, which greatly improves the heat exchange efficiency of the system, reduces the operating energy consumption of the system, and is more energy-saving, more economical and lower in operating cost when the concentration of the waste gas before treatment is low and the concentration of the waste gas after the concentration of the runner is 3-5 g / m 3 .
[0005] To achieve the above-mentioned purpose, the utility model can adopt the following technical solutions:
[0006] The utility model provides a heat exchange device for treating organic waste gas with the adoption of a runner, which is characterized by comprising a runner, a first heat exchanger, a second heat exchanger, a catalytic oxidation reactor and an exhaust device, the runner is provided with an adsorption zone and a desorption zone, the gas outlet of the catalytic oxidation reactor is connected with a high-temperature gas inlet pipeline, the high-temperature gas inlet pipeline is divided into two paths, which are a first high-temperature gas inlet pipeline and a second high-temperature gas inlet pipeline respectively, a part of the gas after the reaction of the catalytic oxidation reactor enters the first heat exchanger through the first high-temperature gas inlet pipeline and exchanges heat with the desorbed low-temperature gas, the heated gas is used for the desorption of the runner, is discharged through the first low-temperature gas outlet pipeline of the first heat exchanger, another part enters the second heat exchanger through the second high-temperature gas inlet pipeline and exchanges heat with the low-temperature gas after the desorption, preheats the waste gas after the desorption, is discharged through the second low-temperature gas outlet pipeline of the second heat exchanger, the first low-temperature gas outlet pipeline and the second low-temperature gas outlet pipeline are connected with one end of the second exhaust pipeline, the other end of the second exhaust pipeline is connected with the gas inlet of the exhaust device, and the gas discharged through the first low-temperature gas outlet pipeline and the second low-temperature gas outlet pipeline is conveyed to the exhaust device through the second exhaust pipeline.
[0007] Preferably, the first exhaust gas inlet pipeline is connected to one side of the adsorption zone, the other side of the adsorption zone is connected to one end of the first exhaust pipeline, the other end of the first exhaust pipeline is connected to the gas inlet of the exhaust device, the organic exhaust gas is adsorbed and treated through the adsorption zone via the first exhaust gas inlet pipeline, and the gas after the adsorption treatment is transported to the exhaust device via the first exhaust pipeline. The first exhaust pipeline is also provided with a branch pipeline, the branch pipeline is connected to the first low-temperature gas inlet pipeline of the first heat exchanger, the first high-temperature gas outlet pipeline of the first heat exchanger is connected to one side of the desorption zone, the other side of the desorption zone is connected to the second low-temperature gas inlet pipeline of the second heat exchanger, and the second high-temperature gas outlet pipeline of the second heat exchanger is connected to the gas inlet of the catalytic oxidation reactor.
[0008] Preferably, the temperature of the gas in the first high-temperature gas outlet pipeline is 200-250℃.
[0009] For the runner without cold blowing design, the heat exchange working process of the runner for treating organic exhaust gas is as follows: the organic exhaust gas in the first exhaust gas inlet pipeline is transported to the exhaust device via the first exhaust pipeline after being adsorbed and purified by the adsorption zone, the gas in the branch pipeline enters the first heat exchanger through the first low-temperature gas inlet pipeline to exchange heat with the high-temperature gas, is discharged through the first high-temperature gas outlet pipeline to enter the desorption zone for desorption treatment, and the gas after the desorption enters the second heat exchanger through the second low-temperature gas inlet pipeline to exchange heat to increase the temperature of the gas; the gas after the temperature increase enters the catalytic oxidation reactor through the gas inlet via the second high-temperature gas outlet pipeline to react, and the gas after the reaction is output via the high-temperature gas inlet pipeline, which is divided into two paths, i.e., the first high-temperature gas inlet pipeline and the second high-temperature gas inlet pipeline. Part of the gas after the reaction enters the first heat exchanger via the first high-temperature gas inlet pipeline, is discharged via the first low-temperature gas outlet pipeline, and the other part enters the second heat exchanger via the second high-temperature gas inlet pipeline, is discharged via the second low-temperature gas outlet pipeline, and the gases discharged via the first low-temperature gas outlet pipeline and the second low-temperature gas outlet pipeline are transported to the exhaust device via the second exhaust pipeline.
[0010] Preferably, the runner is also provided with a cooling zone, the organic exhaust gas is divided into two paths after passing through the gas feeding pipeline, i.e., the first exhaust gas inlet pipeline and the second exhaust gas inlet pipeline, the first exhaust gas inlet pipeline is connected to one side of the adsorption zone, the other side of the adsorption zone is connected to one end of the first exhaust pipeline, the other end of the first exhaust pipeline is connected to the gas inlet of the exhaust device, the second exhaust gas inlet pipeline is connected to one side of the cooling zone, the other side of the cooling zone is connected to the first low-temperature gas inlet pipeline of the first heat exchanger, the first high-temperature gas outlet pipeline of the first heat exchanger is connected to one side of the desorption zone, the other side of the desorption zone is connected to the second low-temperature gas inlet pipeline of the second heat exchanger, and the second high-temperature gas outlet pipeline of the second heat exchanger is connected to the gas inlet of the catalytic oxidation reactor.
[0011] The heat exchange working procedure of the rotating wheel for treating the organic waste gas is as follows: the organic waste gas is divided into two paths after the gas pipe, and the two paths are respectively a first waste gas inlet pipe and a second waste gas inlet pipe; the organic waste gas of the first waste gas inlet pipe is conveyed to the exhaust device through the first exhaust pipe after being purified by the adsorption area; the organic waste gas of the second waste gas inlet pipe is cooled in the cooling area; the organic waste gas passing through the cooling area enters the first heat exchanger after being heated, and then is discharged through the first high-temperature gas outlet pipe to enter the desorption area for desorption treatment; the gas after desorption enters the second heat exchanger through the second low-temperature gas inlet pipe to increase the temperature of the gas; the gas after the temperature is increased enters the catalytic oxidation reactor through the gas inlet of the second high-temperature gas outlet pipe for reaction; the gas after the reaction is output through the high-temperature gas inlet pipe; the high-temperature gas inlet pipe is divided into two paths, and the two paths are respectively a first high-temperature gas inlet pipe and a second high-temperature gas inlet pipe; part of the gas after the reaction enters the first heat exchanger through the first high-temperature gas inlet pipe and is discharged through the first low-temperature gas outlet pipe; the other part of the gas after the reaction enters the second heat exchanger through the second high-temperature gas inlet pipe and is discharged through the second low-temperature gas outlet pipe; the gas discharged through the first low-temperature gas outlet pipe and the second low-temperature gas outlet pipe is conveyed to the exhaust device through the second exhaust pipe and is discharged.
[0012] The high-temperature gas after catalytic oxidation enters the first heat exchanger and the second heat exchanger through the shunt mode, heats the gas after desorption and preheats the waste gas after desorption, so that the heat exchange temperature difference is improved, and therefore the cost and operation energy consumption of the equipment can be greatly reduced.
[0013] Preferably, the area ratio of the adsorption area to the desorption area is 10:1.
[0014] Preferably, the first heat exchanger and the second heat exchanger are the same in structure and are both plate heat exchangers.
[0015] Preferably, the catalytic oxidation reactor is internally provided with a catalyst packing bed, and the catalyst packing bed is filled with a catalyst.
[0016] Further preferably, the catalyst is a honeycomb ceramic catalyst.
[0017] Preferably, the temperature of the gas at the gas outlet of the catalytic oxidation reactor is 450-500 DEG C.
[0018] Preferably, the temperature of the gas in the first high-temperature gas outlet pipeline is 200-250 DEG C. Further preferably, the temperature of the gas in the first high-temperature gas outlet pipeline is 220 DEG C.
[0019] Preferably, the exhaust device is an exhaust cylinder, and the gas purified by adsorption in the adsorption zone is transported to the exhaust cylinder through the first exhaust pipeline for high-altitude emission, and the gas discharged from the first low-temperature gas outlet pipeline and the second low-temperature gas outlet pipeline is transported to the exhaust cylinder through the second exhaust pipeline for high-altitude emission.
[0020] Compared with the prior art, the heat exchange device provided by the utility model has the advantages of being more energy-saving, more economical and lower in operation cost. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.
[0022] Figure 1 Fig. 1 is a structural schematic view of the heat exchange device for treating organic waste gas by using a rotating wheel in the embodiment of the utility model;
[0023] Figure 2 Fig. 2 is a structural schematic view of the heat exchange device for treating organic waste gas by using a rotating wheel in the embodiment of the utility model;
[0024] Figure 3 Fig. 3 is a structural schematic view of the heat exchange device for treating organic waste gas by using a rotating wheel in the embodiment of the utility model;
[0025] Figure 4 Fig. 4 is a structural schematic view of the heat exchange device for treating organic waste gas by using a rotating wheel in the embodiment of the utility model;
[0026] 10, gas feeding pipe; 11, first waste gas inlet pipeline; 12, second waste gas inlet pipeline; 20, rotating wheel; 21, adsorption zone; 22, desorption zone; 23, cooling zone; 30, first heat exchanger; 31, first low-temperature gas inlet pipeline; 32, first high-temperature gas outlet pipeline; 33, first high-temperature gas inlet pipeline; 34, first low-temperature gas outlet pipeline; 40, second heat exchanger; 41, second low-temperature gas inlet pipeline; 42, second high-temperature gas outlet pipeline; 43, second high-temperature gas inlet pipeline; 44, second low-temperature gas outlet pipeline; 50, catalytic oxidation reactor; 60, exhaust device; 61, first exhaust pipeline; 62, second exhaust pipeline. DETAILED DESCRIPTION
[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0028] Embodiment:
[0029] It should be noted that the terms "first", "second", "one side", "the other side" and the like in the description, claims and above drawings of the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0030] Specifically, referring to Figure 1 A heat exchange device for treating organic waste gas by using a rotating wheel, comprising a rotating wheel 20, a first heat exchanger 30, a second heat exchanger 40, a catalytic oxidation reactor 50 and an exhaust device 60, the rotating wheel 20 is provided with an adsorption zone 21 and a desorption zone 22, the gas outlet of the catalytic oxidation reactor 50 is connected with a high-temperature gas inlet pipeline, the high-temperature gas inlet pipeline is divided into two paths, which are a first high-temperature gas inlet pipeline 33 and a second high-temperature gas inlet pipeline 43, a part of the gas after the catalytic oxidation reactor reaction enters the first heat exchanger 30 to exchange heat with the desorbed low-temperature gas through the first high-temperature gas inlet pipeline 33, and is discharged through a first low-temperature gas outlet pipeline 34 of the first heat exchanger 30, another part enters the second heat exchanger 40 to exchange heat with the desorbed low-temperature gas through the second high-temperature gas inlet pipeline 43, preheats the desorbed waste gas, and is discharged through a second low-temperature gas outlet pipeline 44 of the second heat exchanger 40, the first low-temperature gas outlet pipeline 34 and the second low-temperature gas outlet pipeline 44 are connected with one end of a second exhaust pipeline 62, the other end of the second exhaust pipeline 62 is connected with a gas inlet of the exhaust device 60, and the gas discharged from the first low-temperature gas outlet pipeline 34 and the second low-temperature gas outlet pipeline 44 is transported to the exhaust device 60 through the second exhaust pipeline 62.
[0031] As Figure 1As shown, the first exhaust gas inlet pipeline 11 is connected with one side of the adsorption zone 21, the other side of the adsorption zone 21 is connected with one end of the first exhaust gas pipeline 61, the other end of the first exhaust gas pipeline 61 is connected with the gas inlet of the exhaust device 60, the organic exhaust gas is adsorbed and treated through the adsorption zone 21 via the first exhaust gas inlet pipeline 11, the gas after the adsorption treatment is transported to the exhaust device 60 via the first exhaust gas pipeline 61, the first exhaust gas pipeline 61 is further provided with a branch gas pipeline, the branch gas pipeline is connected with the first low-temperature gas inlet pipeline 31 of the first heat exchanger 30, the first high-temperature gas outlet pipeline 32 of the first heat exchanger 30 is connected with one side of the desorption zone 22, the other side of the desorption zone 22 is connected with the second low-temperature gas inlet pipeline 41 of the second heat exchanger 40, and the second high-temperature gas outlet pipeline 42 of the second heat exchanger 40 is connected with the gas inlet of the catalytic oxidation reactor 50.
[0032] For the runner without the cold-blowing design, the heat exchange working process of the runner for treating the organic exhaust gas is as follows: the organic exhaust gas of the first exhaust gas inlet pipeline 11 is transported to the exhaust device 60 via the first exhaust gas pipeline 61 after being adsorbed and purified by the adsorption zone 21, the gas in the branch gas pipeline enters the first heat exchanger 30 via the first low-temperature gas inlet pipeline 31 to exchange heat with the high-temperature gas, is discharged via the first high-temperature gas outlet pipeline 32 to enter the desorption zone 22 for desorption treatment, the gas after the desorption enters the second heat exchanger 40 via the second low-temperature gas inlet pipeline 41 to exchange heat so as to increase the temperature of the gas; the gas after the temperature increase enters the catalytic oxidation reactor 50 via the gas inlet via the second high-temperature gas outlet pipeline 42 to react, the gas after the reaction is output via the high-temperature gas inlet pipeline, the high-temperature gas inlet pipeline is divided into two paths, which are the first high-temperature gas inlet pipeline 33 and the second high-temperature gas inlet pipeline 43, part of the gas after the reaction enters the first heat exchanger 30 via the first high-temperature gas inlet pipeline 33, is discharged via the first low-temperature gas outlet pipeline 34, and the other part of the gas after the reaction enters the second heat exchanger 40 via the second high-temperature gas inlet pipeline 43, is discharged via the second low-temperature gas outlet pipeline 44, and the gas discharged via the first low-temperature gas outlet pipeline 34 and the second low-temperature gas outlet pipeline 44 is transported to the exhaust device 60 via the second exhaust gas pipeline 62 for discharge.
[0033] Further, referring to Figure 2The rotating wheel is further provided with a cooling zone, the organic waste gas is divided into two paths after the gas feeding pipe 10, and the two paths are a first waste gas feeding pipe 11 and a second waste gas feeding pipe 12 respectively, the first waste gas feeding pipe 11 is connected with one side of the adsorption zone 21, the other side of the adsorption zone 21 is connected with one end of a first exhaust pipe 61, the other end of the first exhaust pipe 61 is connected with a gas inlet of an exhaust device 60, the second waste gas feeding pipe 12 is connected with one side of the cooling zone 23, the other side of the cooling zone 23 is connected with a first low-temperature gas feeding pipe 31 of a first heat exchanger 30, a first high-temperature gas outlet pipe 32 of the first heat exchanger 30 is connected with one side of a desorption zone 22, the other side of the desorption zone 22 is connected with a second low-temperature gas feeding pipe 41 of a second heat exchanger 40, and a second high-temperature gas outlet pipe 42 of the second heat exchanger 40 is connected with a gas inlet of a catalytic oxidation reactor 50.
[0034] The working process of heat exchange of the rotating wheel for treating the organic waste gas is that the organic waste gas is divided into two paths after the gas feeding pipe 10, and the two paths are a first waste gas feeding pipe 11 and a second waste gas feeding pipe 12 respectively, the organic waste gas of the first waste gas feeding pipe 11 is conveyed to the exhaust device 60 through the first exhaust pipe 61 after being purified by the adsorption zone 21, the organic waste gas of the second waste gas feeding pipe 12 is cooled in the cooling zone 23, the organic waste gas passing through the cooling zone 23 enters the first heat exchanger 30 through the first low-temperature gas feeding pipe 31 and is heated, and then is discharged through the first high-temperature gas outlet pipe 32 and enters the desorption zone 22 for desorption treatment, the gas after desorption enters the second heat exchanger 40 through the second low-temperature gas feeding pipe 41 and is heated, the gas after heating enters the catalytic oxidation reactor 50 through the second high-temperature gas outlet pipe 42, the gas after reaction is output through the high-temperature gas feeding pipe, the high-temperature gas feeding pipe is divided into two paths, and the two paths are a first high-temperature gas feeding pipe 33 and a second high-temperature gas feeding pipe 43 respectively, part of the gas after reaction enters the first heat exchanger 30 through the first high-temperature gas feeding pipe 33 and is discharged through the first low-temperature gas outlet pipe 34, and the other part of the gas after reaction enters the second heat exchanger 40 through the second high-temperature gas feeding pipe 43 and is discharged through the second low-temperature gas outlet pipe 44, and the gas discharged through the first low-temperature gas outlet pipe 34 and the second low-temperature gas outlet pipe 44 is conveyed to the exhaust device 60 through the second exhaust pipe 62 and is discharged.
[0035] The high-temperature gas after catalytic oxidation is divided into two paths and enters the first heat exchanger and the second heat exchanger respectively, the gas after desorption is heated and the waste gas after desorption is preheated, and therefore the heat exchange temperature difference is improved, so that the cost and operation energy consumption of the equipment can be greatly reduced.
[0036] The areas of the adsorption zone, desorption zone, and cooling zone in the rotor are selected according to the actual situation. In this embodiment, the area ratio of the adsorption zone to the desorption zone is preferably 10:1. Those skilled in the art can choose to also provide a cooling zone in the rotor according to actual needs. The area ratio of the adsorption zone:desorption zone:cooling zone is approximately 10:1:1.
[0037] For medium or low concentration exhaust gases, zeolite rotors are generally selected. The structure of the rotor is existing technology. Those skilled in the art can purchase or design zeolite rotors according to actual needs, as long as they can meet the functions of this utility model.
[0038] The first heat exchanger 30 and the second heat exchanger 40 have the same structure and can be selected according to the actual use to meet the requirements of gas-to-gas heat exchange. In this embodiment, the heat exchanger is preferably a plate heat exchanger. Both the first heat exchanger and the second heat exchanger are gas-to-gas plate heat exchangers.
[0039] The catalytic oxidation reactor 50 is equipped with a catalyst packed bed, which is filled with catalyst. The amount of catalyst is determined according to actual needs. The catalyst is a honeycomb ceramic catalyst.
[0040] The temperature of the gas at the outlet of the catalytic oxidation reactor is 450℃-500℃. Preferably, the gas temperature at the outlet of the catalytic oxidation reactor is 470℃. The temperature of the gas in the first high-temperature outlet pipe is 200℃-250℃. Preferably, the gas temperature in the first high-temperature outlet pipe is 220℃.
[0041] The exhaust device can be selected according to the actual use, as long as it can discharge the purified gas. The preferred exhaust device of this utility model is an exhaust stack. The gas purified by adsorption in the adsorption zone 21 is transported to the exhaust stack for high-altitude discharge through the first exhaust pipe 61. The gas discharged from the first low-temperature gas outlet pipe 34 and the second low-temperature gas outlet pipe 44 is transported to the exhaust stack for high-altitude discharge through the second exhaust pipe 62.
[0042] Experimental Example 1:
[0043] Compare heat exchange devices without air cooling, such as Figure 3 As shown, the adsorbed gas (temperature approximately 45°C) is directly heated to 160°C for desorption, and the desorbed gas (temperature approximately 70°C) is then used for catalytic oxidation. Similarly, if the desorption air volume is 6000 Nm³... 3 / h, catalytic oxidation ignition temperature 300℃, post-catalytic oxidation temperature 450℃. A comparison between the series-connected two-stage heat exchange method and the current split-flow method of this invention shows that the split-flow method achieves a total heat exchange area of 405m². 2 This achieves equilibrium; a traditional two-stage heat exchanger in series is used, with a total heat exchange area of 500m². 2It also needs to additionally supplement 55.5kW energy to reach balance. The heat exchange in the shunt mode of the utility model has less equipment cost and operation cost.
[0044] Experimental example 2:
[0045] Comparing the heat exchange device with the cold blowing mode, as shown in the figure, the gas (about 100℃) after cold blowing is used to heat to 220℃ for desorption, and the gas (about 60℃) after desorption is used for catalytic oxidation. Figure 4 If the desorption air volume is 6000Nm 3 / h, the catalytic oxidation ignition temperature is 300℃, and the temperature after catalytic oxidation is 470℃, the two-stage heat exchange mode in series and the shunt mode of the utility model are compared through calculation, and it can be seen that, in the shunt mode, the total heat exchange area is 500m 2 , and balance can be reached; in the traditional two-stage heat exchange mode in series, the total heat exchange area is 555m 2 , and additional 22.2kW energy is needed to reach balance. The heat exchange in the shunt mode of the utility model has less equipment cost and operation cost.
[0046] The above examples are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable the ordinary skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent changes or modifications according to the essence of the utility model should be covered in the protection scope of the utility model.
Claims
1. A heat exchange device for treating organic waste gas using a rotary wheel, characterized in that, The device includes a rotor, a first heat exchanger, a second heat exchanger, a catalytic oxidation reactor, and an exhaust system. The rotor is equipped with an adsorption zone and a desorption zone. The gas outlet of the catalytic oxidation reactor is connected to a high-temperature gas inlet pipe, which is divided into two lines: a first high-temperature gas inlet pipe and a second high-temperature gas inlet pipe. Part of the gas produced after the reaction in the catalytic oxidation reactor enters the first heat exchanger through the first high-temperature gas inlet pipe to exchange heat with the desorbed low-temperature gas. The heated gas is used for desorption by the rotor and is discharged through the first low-temperature gas outlet pipe of the first heat exchanger. The other part enters the second heat exchanger through the second high-temperature gas inlet pipe to exchange heat with the desorbed low-temperature gas, preheating the desorbed waste gas. It is then discharged through the second low-temperature gas outlet pipe of the second heat exchanger. One end of the first low-temperature gas outlet pipe and the second low-temperature gas outlet pipe are connected to a second exhaust pipe, and the other end of the second exhaust pipe is connected to the gas inlet of the exhaust system. The gas discharged from the first low-temperature gas outlet pipe and the second low-temperature gas outlet pipe is transported to the exhaust system through the second exhaust pipe.
2. The heat exchange device for treating organic waste gas using a rotary wheel according to claim 1, characterized in that, The first waste gas inlet pipe is connected to one side of the adsorption zone, and the other side of the adsorption zone is connected to one end of the first exhaust pipe. The other end of the first exhaust pipe is connected to the gas inlet of the exhaust device. The organic waste gas is adsorbed and treated in the adsorption zone through the first waste gas inlet pipe. The gas after adsorption treatment is transported to the exhaust device through the first exhaust pipe. A branch pipe is also provided on the first exhaust pipe. The branch pipe is connected to the first low-temperature inlet pipe of the first heat exchanger. The first high-temperature outlet pipe of the first heat exchanger is connected to one side of the desorption zone. The other side of the desorption zone is connected to the second low-temperature inlet pipe of the second heat exchanger. The second high-temperature outlet pipe of the second heat exchanger is connected to the gas inlet of the catalytic oxidation reactor.
3. The heat exchange device for treating organic waste gas using a rotary wheel according to claim 2, characterized in that, The temperature of the gas in the first high-temperature outlet pipe is 200℃-250℃.
4. The heat exchange device for treating organic waste gas using a rotary wheel according to claim 1, characterized in that, The rotor is also equipped with a cooling zone. The organic waste gas is divided into two paths after passing through the gas supply pipe: a first waste gas inlet pipe and a second waste gas inlet pipe. The first waste gas inlet pipe is connected to one side of the adsorption zone, and the other side of the adsorption zone is connected to one end of the first exhaust pipe. The other end of the first exhaust pipe is connected to the gas inlet of the exhaust device. The second waste gas inlet pipe is connected to one side of the cooling zone, and the other side of the cooling zone is connected to the first low-temperature inlet pipe of the first heat exchanger. The first high-temperature outlet pipe of the first heat exchanger is connected to one side of the desorption zone, and the other side of the desorption zone is connected to the second low-temperature inlet pipe of the second heat exchanger. The second high-temperature outlet pipe of the second heat exchanger is connected to the gas inlet of the catalytic oxidation reactor.
5. The heat exchange device for treating organic waste gas using a rotary wheel according to claim 1, characterized in that, The area ratio of the adsorption region to the desorption region is 10:
1.
6. The heat exchange device for treating organic waste gas using a rotary wheel according to claim 1, characterized in that, The catalytic oxidation reactor is equipped with a catalyst packing bed, which is filled with catalyst.
7. The heat exchange device for treating organic waste gas using a rotary wheel according to claim 6, characterized in that, The catalyst is a honeycomb ceramic catalyst.
8. The heat exchange device for treating organic waste gas using a rotary wheel according to claim 1, characterized in that, The temperature of the gas at the outlet of the catalytic oxidation reactor is 450℃-500℃.
9. The heat exchange device for treating organic waste gas using a rotary wheel according to claim 1, characterized in that, The exhaust device is an exhaust stack. The organic waste gas is purified by adsorption in the adsorption zone and then transported to the exhaust stack for high-altitude discharge through the first exhaust pipe. The gas discharged from the first low-temperature exhaust pipe and the second low-temperature exhaust pipe is transported to the exhaust stack for high-altitude discharge through the second exhaust pipe.