Waste gas temperature raising filtering device

Abstract

The utility model discloses a waste gas temperature raising filtering device which comprises a frame body, a ceramic temperature raising cavity is arranged in the frame body, and a gas inlet pipeline assembly and a gas outlet pipeline assembly are arranged at the gas inlet end and the gas outlet end of the ceramic temperature raising cavity respectively. The burner is simple in structure and reasonable in design, VOCs and air can be fully mixed through the spoiler blade arranged at the outlet of the end for shunting the VOCs and the air, extra energy input needed by a system in the combustion process can be reduced through the preheating bent pipe arranged at the end of the spoiler blade, the combustion efficiency is improved, meanwhile, the operation cost is reduced, and in addition, the service life of the burner is prolonged. The water and the carbon dioxide can be effectively separated by separately arranging the discharge pipe and the flow guide pipe, so that the final products can be discharged under control, and the influence on the surrounding environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to a waste gas temperature raising and filtering device. Background Art

[0002] Waste gas treatment technology is one of the key research directions in the field of environmental protection, especially the treatment technology of volatile organic compounds (VOCs), which is of great significance for improving air quality and protecting the environment. VOCs are widely present in the production processes of chemical, coating, printing, petrochemical and other industries. Their emissions not only pollute the atmospheric environment, but also may generate ozone and fine particulate matter through photochemical reactions, posing a serious threat to human health. Therefore, the development of efficient VOCs treatment technology has become an important task in environmental protection. At present, the treatment methods of VOCs mainly include physical adsorption, chemical absorption, biological methods, photocatalysis, thermal oxidation, etc. Among them, thermal oxidation technology has been widely studied and applied due to its high treatment efficiency and wide range of applications. Thermal oxidation technology mainly achieves the purpose of purifying waste gas by fully burning VOCs at high temperatures and converting them into harmless carbon dioxide and water vapor.

[0003] Specifically for the thermal oxidation process of VOCs, sufficient combustion is the key to achieving efficient exhaust gas treatment. This process depends on the full mixing of VOCs and air and appropriate preheating conditions. In practical applications, the degree of mixing of VOCs and air directly affects the integrity and efficiency of combustion. In order to improve the mixing effect, it is usually necessary to set up a turbulent device in the system or use a specific mixing technology, but these methods often increase the complexity and operating costs of the system. In addition, preheating is another key factor, which accelerates the chemical reaction rate by increasing the temperature of the inlet gas, thereby promoting the complete oxidation of VOCs. However, traditional preheating technologies such as the use of external burners or electric heating elements, although they can achieve preheating effects, also have the problems of high energy consumption and inconvenient equipment maintenance. Therefore, how to simplify the equipment structure and reduce operating costs while ensuring combustion efficiency is a technical problem that needs to be solved in the current development of VOCs thermal oxidation treatment technology. Utility Model Content

[0004] The purpose of the utility model is to provide an exhaust gas temperature raising and filtering device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: an exhaust gas temperature-raising filter device, comprising a frame, a ceramic temperature-raising chamber is arranged inside the frame, and an air inlet and an air outlet end of the ceramic temperature-raising chamber are respectively provided with an air inlet pipe assembly and an air outlet pipe assembly;

[0006] The air intake duct assembly comprises:

[0007] A preheating elbow, the preheating elbow is connected to the ceramic temperature raising chamber, and the outlet portion of the preheating elbow is located inside the ceramic temperature raising chamber;

[0008] A double-channel delivery pipe, the double-channel delivery pipe is connected to the preheating elbow, the interior of the double-channel delivery pipe is divided into a VOCs circulation part and an air circulation part by a partition, and the VOCs circulation part and the air circulation part are independent of each other;

[0009] The spoiler blade is arranged at the outlet end of the dual-channel delivery pipe, and the spoiler blade is used to improve the gas mixing effect.

[0010] Preferably, the air outlet pipe assembly comprises:

[0011] An external exhaust pipe, which is arranged at the gas outlet end of the ceramic temperature raising chamber;

[0012] The flow guide pipe is arranged at the lower end of the outer pipe and is communicated with the outer pipe.

[0013] Preferably, a drainage portion is provided at the connection between the ceramic temperature raising chamber and the external discharge pipe.

[0014] Preferably, a temperature insulating portion is provided on the outer side of the ceramic temperature raising chamber.

[0015] Preferably, the preheating bent pipe is made of a ceramic-based composite material.

[0016] Preferably, the outlet portion of the preheating elbow is provided with a drainage hood.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The exhaust gas temperature raising and filtering device is provided with an intake pipe assembly, including a preheating elbow, a dual-channel delivery pipe, a partition, a VOCs circulation part, an air circulation part, and a spoiler blade. The spoiler blade is provided at the end outlet of the VOCs and air diversion to ensure that the two are fully mixed. The preheating elbow is provided at the end of the spoiler blade to reduce the additional energy input required by the system during the combustion process, thereby improving the combustion efficiency and reducing the operating cost.

[0019] The exhaust gas temperature raising and filtering device is provided with an exhaust pipe assembly, wherein the exhaust pipe assembly includes an external exhaust pipe and a guide pipe. By separately providing the external exhaust pipe and the guide pipe, water and carbon dioxide can be effectively separated, thereby ensuring that these final products can be discharged under control and reducing the impact on the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 2 This is a large picture of prescription A of the utility model;

[0022] Figure 3 This is a diagram showing the internal structure of the dual-channel delivery pipe of the present utility model.

[0023] In the figure: 1. frame; 2. ceramic temperature raising chamber; 3. air inlet duct assembly; 301. preheating elbow; 302. dual-channel delivery pipe; 303. partition; 304. VOCs circulation part; 305. air circulation part; 306. spoiler blade; 4. air outlet duct assembly; 401. external exhaust pipe; 402. guide pipe; 5. drainage part; 6. thermal insulation part; 7. drainage hood. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integrated connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined. Example

[0028] See also Figure 1-3 As shown, the utility model provides a technical solution of an exhaust gas temperature-raising filter device: an exhaust gas temperature-raising filter device, comprising a frame 1, a ceramic temperature-raising chamber 2 is installed inside the frame 1, and an intake pipe assembly 3 and an outlet pipe assembly 4 are installed at the air inlet end and the air outlet end respectively;

[0029] The air intake duct assembly 3 includes a preheating elbow 301, a dual-channel delivery pipe 302, and a spoiler blade 306. The preheating elbow 301 is connected to the ceramic temperature raising chamber 2, and the outlet portion of the preheating elbow 301 is located inside the ceramic temperature raising chamber 2. The dual-channel delivery pipe 302 is connected to the preheating elbow 301. The interior of the dual-channel delivery pipe 302 is divided into a VOCs circulation part 304 and an air circulation part 305 by a partition 303. The VOCs circulation part 304 and the air circulation part 305 are independent of each other. The spoiler blade 306 is arranged at the outlet end of the dual-channel delivery pipe 302. The spoiler blade 306 is used to improve the gas mixing effect. In the specific implementation process, the VOCs circulation part 304 and the air circulation part 305 They are respectively connected to the VOCs exhaust equipment and the air introduction equipment. In the process of VOCs treatment, the ceramic temperature raising chamber 2 needs to be preheated first. At the same time, the temperature of the preheating elbow 301 will also be increased to a certain extent. Then VOCs and air pass through their respective circulation parts and the preheating elbow 301 to enter the interior of the ceramic temperature raising chamber 2. In this process, the spoiler blades 306 will change the flow direction of VOCs and air to play a role in spoiling and mixing, so as to improve the combustion efficiency. After the gas is delivered, the inlet and outlet valves of the ceramic temperature raising chamber 2 are closed, and the combustion is heated to make the VOCs oxidatively decompose. After complete decomposition, the valves at the ends of the inlet and outlet pipes are opened to discharge the decomposed water and carbon dioxide to complete the cleaning filtration.

[0030] The air outlet pipe assembly 4 includes an external exhaust pipe 401 and a guide pipe 402. The external exhaust pipe 401 is installed at the air outlet end of the ceramic temperature raising chamber 2, and the guide pipe 402 is installed at the lower end of the external exhaust pipe 401 and is connected to the external exhaust pipe 401. After the VOCs are completely oxidized and decomposed into water and carbon dioxide, the valves at the ends of the inlet and outlet pipes are opened, the VOCs circulation part 304 inside the dual-channel delivery pipe 302 remains closed, and the air circulation part 305 inside the dual-channel delivery pipe 302 is exhausted normally to guide and accelerate the discharge of water and carbon dioxide inside the ceramic temperature raising chamber 2. After flowing into the lower end of the external exhaust pipe 401, the water will flow into the guide pipe 402 and be discharged, and the carbon dioxide will be discharged from the external exhaust pipe 401 under the action of the external exhaust fan, thereby realizing the separation and collection of water and carbon dioxide.

[0031] A drainage portion 5 is provided at the connection between the ceramic temperature raising chamber 2 and the external discharge pipe 401. This design can guide the condensed water from the water vapor generated in the ceramic temperature raising chamber 2 to flow into the external discharge pipe 401 along the inner wall of the drainage portion 5, thereby preventing water accumulation.

[0032] An insulation part 6 is provided on the outside of the ceramic temperature raising chamber 2. This design can prevent high temperature from being transmitted from the ceramic temperature raising chamber 2 to the outside of the frame 1 and other components inside the frame 1. In the specific implementation process, the insulation part 6 can be ceramic fiber insulation cotton to achieve the effect of effectively blocking the transfer of heat energy.

[0033] The preheating bent pipe 301 is made of a ceramic-based composite material. This design can improve the overall toughness and impact resistance of the pipe. In the specific implementation process, the ceramic-based composite material usually contains carbon fiber or other reinforcing agents, which are evenly distributed in the ceramic matrix to improve the mechanical properties and thermal stability of the material.

[0034] The outlet part of the preheating bent pipe 301 is provided with a drainage hood 7. This design can prevent the water vapor inside the ceramic temperature raising chamber 2 from condensing after cooling and entering the preheating bent pipe 301 again. In the specific implementation process, it can be designed as a conical structure, which can effectively prevent the backflow of water and ensure the dry state of the preheating bent pipe 301 during operation.

[0035] The working principle of the utility model is as follows:

[0036] When an exhaust gas temperature-raising and filtering device of the present embodiment is used, the ceramic temperature-raising chamber 2 is first preheated. At this time, the preheating elbow 301 is also heated up. At this stage, VOCs and air enter the ceramic temperature-raising chamber 2 from their respective flow parts through the preheating elbow 301. The VOCs and air entering the ceramic temperature-raising chamber 2 are mixed under the action of the spoiler blades 306. The spoiler blades 306 optimize the gas flow path and increase the contact area between the gases, thereby improving the combustion efficiency. Subsequently, the inlet and outlet valves of the ceramic temperature-raising chamber 2 are closed for heating and combustion. Burning causes VOCs to be oxidized and decomposed at high temperature. After VOCs are completely decomposed into water and carbon dioxide, the valves at the ends of the inlet and outlet pipes are opened, and the water and carbon dioxide are discharged through the external exhaust pipe 401 and the guide pipe 402. During this process, the VOCs circulation part 304 remains closed and the air circulation part 305 continues to exhaust, which helps to accelerate the discharge of gas inside the ceramic temperature raising chamber 2. Water flows out through the guide pipe 402, and carbon dioxide is discharged from the external exhaust pipe 401 with the help of an external exhaust fan, thereby realizing the effective separation and collection of water and carbon dioxide 1.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An exhaust gas temperature raising and filtering device, comprising a frame (1), characterized in that: A ceramic temperature-raising chamber (2) is provided inside the frame (1), and an air inlet end and an air outlet end of the ceramic temperature-raising chamber (2) are provided with an air inlet duct assembly (3) and an air outlet duct assembly (4) respectively; The air intake duct assembly (3) comprises: A preheating bent pipe (301), the preheating bent pipe (301) being connected to the ceramic temperature raising chamber (2), and an outlet portion of the preheating bent pipe (301) being located inside the ceramic temperature raising chamber (2); A dual-channel delivery pipe (302), the dual-channel delivery pipe (302) being connected to the preheating bent pipe (301), the interior of the dual-channel delivery pipe (302) being divided into a VOCs circulation section (304) and an air circulation section (305) by a partition plate (303), the VOCs circulation section (304) and the air circulation section (305) being independent of each other; A spoiler blade (306) is provided at the outlet end of the dual-channel delivery pipe (302), and the spoiler blade (306) is used to enhance the gas mixing effect.

2. The exhaust gas temperature raising and filtering device according to claim 1, characterized in that: The air outlet pipe assembly (4) comprises: An external exhaust pipe (401), wherein the external exhaust pipe (401) is arranged at the gas outlet end of the ceramic temperature raising chamber (2); A flow guide pipe (402), wherein the flow guide pipe (402) is arranged at the lower end of the outer pipe (401) and is in communication with the outer pipe (401).

3. The exhaust gas temperature raising and filtering device according to claim 2, characterized in that: A drainage portion (5) is provided at the connection between the ceramic temperature raising chamber (2) and the external discharge pipe (401).

4. The exhaust gas temperature raising and filtering device according to claim 1, characterized in that: A temperature insulating portion (6) is provided on the outer side of the ceramic temperature raising chamber (2).

5. The exhaust gas temperature raising and filtering device according to claim 1, characterized in that: The preheating bent pipe (301) is made of a ceramic-based composite material.

6. The exhaust gas temperature raising and filtering device according to claim 1, characterized in that: The outlet portion of the preheating bent pipe (301) is provided with a flow guide hood (7).

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