High-frequency induction heating waste gas combustion device

Abstract

The utility model discloses a high-frequency induction heating waste gas combustion device which is provided with a combustion furnace, one side of the combustion furnace is communicated with a water-cooling heat exchanger, the water-cooling heat exchanger is connected with a connecting pipeline, the connecting pipeline is connected with a high-altitude discharge pipe, and the high-altitude discharge pipe is connected with an off-wind core machine. A high-frequency induction heating unit and a high-temperature ceramic heat accumulator are arranged in the burning furnace; according to the utility model, VOCs can be heated to 2500 DEG C in a short time through a high-frequency induction heating technology, so that organic pollutants can be thoroughly cracked and decomposed into water vapor and carbon dioxide, and the treatment efficiency is high. Due to the design of the high-temperature ceramic heat accumulator 22, the contact area of gas and the heat accumulator is increased, the heat exchange efficiency is improved, the heat loss is reduced, and the energy consumption is reduced. Meanwhile, hot water recovered by the water-cooling heat exchanger can be reused, and energy is further saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas combustion, and particularly relates to a high-frequency induction heating waste gas combustion device. Background Art

[0002] With the development of industry, volatile organic compounds (VOCs) generated in various production activities have caused serious pollution to the environment. Therefore, how to treat these harmful gases efficiently and environmentally friendly has become an urgent problem to be solved. Although traditional RCO, RTO and TO waste gas treatment equipment have solved the problem of VOCs treatment to a certain extent, they have the problems of large footprint, complex system, easy failure, many consumables, high maintenance costs, and inability to effectively treat industrial waste gas containing moisture, solid substances or oily substances. In addition, traditional equipment uses natural gas as the combustion medium, and there is a safety hazard of explosion or fire caused by natural gas leakage. Therefore, it is particularly important to develop a more efficient, safe and economical VOCs treatment device. Utility Model Content

[0003] The main purpose of the utility model is to provide a high-frequency induction heating exhaust gas combustion device, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A high-frequency induction heating exhaust gas combustion device is provided with a combustion furnace, one side of the combustion furnace is connected to a water-cooled heat exchanger, the water-cooled heat exchanger is connected to a connecting pipe, the connecting pipe is connected to a high-altitude discharge pipe, and the high-altitude discharge pipe is connected to a centrifugal fan;

[0006] The combustion furnace is equipped with a high-frequency induction heating unit and a high-temperature ceramic heat storage body.

[0007] Furthermore, the high-frequency induction heating unit is an induction furnace.

[0008] Furthermore, a temperature sensing probe 1 is also provided in the combustion furnace.

[0009] Furthermore, a cooling valve is provided on the connecting pipe, and a temperature sensing probe II is also provided in the connecting pipe.

[0010] Furthermore, the outer layer of the combustion furnace is provided with a carbon steel shell, and the inner layer of the combustion furnace is provided with an asbestos insulation liner.

[0011] Furthermore, a hot water exchange pipe is provided in the water-cooled heat exchanger, a water inlet is provided at one end of the hot water exchange pipe, and a water outlet is provided at the other end, and the hot water exchange pipe is a continuous U-shaped pipe.

[0012] Beneficial effects:

[0013] 1. This utility model utilizes high-frequency induction heating technology to heat VOCs to 2500°C in a short period of time, ensuring complete decomposition of organic pollutants into water vapor and carbon dioxide with high treatment efficiency. The high-temperature ceramic heat storage element increases the contact area between the gas and the heat storage element, improving heat exchange efficiency, minimizing heat loss, and reducing energy consumption. Furthermore, hot water recovered by the water-cooled heat exchanger can be reused, further conserving energy.

[0014] 2. The device of this utility model has a compact structure and small footprint, making it suitable for installation and use in limited spaces. Compared with traditional exhaust gas treatment equipment such as RCO, RTO, and TO, the system of this utility model has a simple structure, no consumables, low maintenance costs, and more convenient daily operation and maintenance.

[0015] 3. This utility model utilizes high-frequency induction heating technology, eliminating the need for flammable and explosive fuels such as natural gas, eliminating the potential for explosion and fire hazards caused by natural gas leaks and improving system safety. Furthermore, the device is capable of treating high-concentration, complex, flammable and explosive industrial waste gases containing moisture, solids, and oils. It is particularly suitable for treating low-volume, high-concentration VOCs and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-frequency induction heating exhaust gas combustion device according to an embodiment of the present utility model;

[0017] Figure 2 This is a partial schematic diagram of a high-frequency induction heating exhaust gas combustion device according to an embodiment of the present invention.

[0018] Figure 3 This is the second partial schematic diagram of a high-frequency induction heating exhaust gas combustion device according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example

[0021] like Figure 1-3 As shown, a high-frequency induction heating exhaust gas combustion device is provided with a combustion furnace 1, one side of the combustion furnace 1 is connected to a water-cooled heat exchanger 2, the water-cooled heat exchanger 2 is connected to a connecting pipe 3, the connecting pipe 3 is connected to a high-altitude discharge pipe 4, and the high-altitude discharge pipe 4 is connected to a centrifugal fan 5;

[0022] The combustion furnace 1 is provided with a high-frequency induction heating unit 21 and a high-temperature ceramic heat storage body 22; the high-frequency induction heating unit 21 is an induction furnace; the combustion furnace 1 is also provided with a temperature sensing probe I13

[0023] A cooling valve 31 is provided on the connecting pipe 3, and a temperature sensing probe II 32 is also provided in the connecting pipe 3; the outer layer of the combustion furnace 1 is provided with a carbon steel shell 11, and the inner layer of the combustion furnace 1 is provided with an asbestos insulation liner 12.

[0024] A hot water exchange pipe 20 is provided in the water-cooled heat exchanger 2. A water inlet 21 is provided at one end of the hot water exchange pipe 20, and a water outlet 22 is provided at the other end. The hot water exchange pipe 20 is a continuous U-shaped pipe, and the water outlet 22 is connected to the factory's living dormitory area.

[0025] Working principle:

[0026] VOCs enter the combustion furnace

[0027] Volatile organic compounds (VOCs) generated during the production process of the enterprise enter the combustion furnace 1 through a pipeline. The combustion furnace 1 is equipped with an induction furnace and a high-temperature ceramic heat storage body 22.

[0028] High-frequency induction heating

[0029] The induction furnace uses the principle of electromagnetic induction to heat VOCs to a high temperature of 2500°C in a short period of time (2-3 seconds). In this high temperature environment, the organic pollutants in the VOCs are completely cracked and decomposed into water vapor and carbon dioxide.

[0030] High temperature ceramic heat storage body assisted combustion

[0031] The decomposed VOCs enter the high-temperature ceramic heat accumulator 22. This high-temperature ceramic heat accumulator 22 utilizes existing technology and features a honeycomb-like pattern of small holes running through the body. Irregular micropores are distributed along the sidewalls between the holes, interconnecting each other and each other. The rows and columns of holes are arranged at right angles. This structural design increases the contact area between the gas and the heat accumulator, improving heat exchange efficiency while reducing heat loss, ensuring the complete combustion of the high-temperature gas and the efficient use of heat.

[0032] Water-cooled heat exchanger cooling

[0033] After high-temperature treatment, the gas reaches a temperature of 1000-800°C and cannot be discharged directly. These high-temperature gases enter the water-cooled heat exchanger 2 through a pipeline. A continuous U-shaped water exchange pipe 20 within the water-cooled heat exchanger 2 exchanges heat with the high-temperature gas, reducing the gas temperature to 60-80°C. The water inlet 21 of the water exchange pipe 20 introduces cold water, and the water outlet 22 discharges hot water. This hot water can be recycled, for example, for use in the factory's living quarters.

[0034] Rapid cooling of cold supply valve

[0035] If the gas temperature after passing through the water-cooled heat exchanger 2 is still higher than 80°C, the cooling valve 31 on the connecting pipe 3 will automatically open, introducing room temperature air for rapid cooling, ensuring that the gas temperature drops below 80°C. A temperature sensing probe II 32 is provided in the connecting pipe 3 to monitor the gas temperature in real time and ensure that the cooling valve 31 responds promptly.

[0036] Centrifugal fan discharge

[0037] The cooled gas enters the high altitude discharge pipe 4 through the connecting pipe 3, and is finally discharged from the high altitude discharge pipe 4 under air pressure through the centrifugal fan 5. The centrifugal fan 5 ensures the negative pressure operation of the entire system to prevent the leakage of untreated VOCs.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A high-frequency induction heating exhaust gas combustion device, characterized in that: A combustion furnace (1) is provided, one side of the combustion furnace (1) is connected to a water-cooled heat exchanger (2), the water-cooled heat exchanger (2) is connected to a connecting pipe (3), the connecting pipe (3) is connected to a high-altitude discharge pipe (4), and the high-altitude discharge pipe (4) is connected to a centrifugal fan (5); A high-frequency induction heating unit (21) and a high-temperature ceramic heat storage body (22) are provided in the combustion furnace (1).

2. The high-frequency induction heating exhaust gas combustion device according to claim 1, characterized in that: The high-frequency induction heating unit (21) is an induction furnace.

3. The high-frequency induction heating exhaust gas combustion device according to claim 2, characterized in that: A temperature sensing probe I (13) is also provided in the combustion furnace (1).

4. The high-frequency induction heating exhaust gas combustion device according to claim 3, characterized in that: The connecting pipe (3) is provided with a cooling valve (31), and a temperature sensing probe II (32) is also provided in the connecting pipe (3).

5. The high-frequency induction heating exhaust gas combustion device according to claim 4, characterized in that: The outer layer of the combustion furnace (1) is provided with a carbon steel shell (11), and the inner layer of the combustion furnace (1) is provided with an asbestos heat-insulating liner (12).

6. The high-frequency induction heating exhaust gas combustion device according to claim 5, characterized in that: A hot water exchange pipe (20) is provided in the water-cooled heat exchanger (2). A water inlet (21) is provided at one end of the hot water exchange pipe (20), and a water outlet (22) is provided at the other end. The hot water exchange pipe (20) is a continuous U-shaped pipe.

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