Automobile exhaust purifier with rapid heating function

Abstract

The utility model relates to a rapid heating automobile exhaust purifier which comprises an exhaust purifier body, the exhaust purifier body comprises a shell, an electric heating metal carrier, an exhaust adsorption carrier, a wire inlet pipe 5 and an electric heating connector, and a connecting hole is formed in the shell; a wire inlet pipe is fixedly arranged on the outer circumference of the shell; a connecting hole is formed in the wire inlet pipe, an electric heating metal carrier is fixedly arranged in the connecting hole, a tail gas adsorption carrier is arranged at one end of the electric heating metal carrier, the tail gas adsorption carrier and the outermost spiral surface of the electric heating metal carrier are axially and fixedly arranged in the connecting hole, and the electric heating connector penetrates into the wire inlet pipe from outside to inside to enter the connecting hole. And the inner end of the electric heating connector is electrically communicated with the electric heating metal carrier. The tail gas purifier has the advantages that the structure is compact, through the design of the electric heating metal carrier, rapid heating of the tail gas purifier is achieved, the reaction speed of the system is increased, the purifier can rapidly reach the working temperature, and therefore tail gas purification work can be started more rapidly.

Description

Technical Field

[0001] The present application relates to the field of automobile exhaust purification, and in particular to a fast-heating automobile exhaust purifier. Background Art

[0002] Due to the limitations of motor vehicle battery capacity and current, the power of producing electric heating metal carriers is limited to a certain extent. The total power that car batteries and generators can support is about 1000 watts to 1500 watts, which has basically reached the current of 0.5C, which is the limit of lead-acid batteries; the power of motorcycle electric heating metal carriers must be controlled within 300 watts, and the total electric heating power of diesel vehicles must be controlled within 2000 watts to 4000 watts; the overall power is limited, and the resistance of the electric heating metal carrier needs to be increased to a certain size before it can be used normally; the diameter of motorcycle metal carriers is generally less than 70mm, and the commonly used metal carriers have an inner diameter of 50mm. To achieve a resistance of 0.48Ω in this small area, this is the difficulty of motorcycle metal electric heating metal carriers.

[0003] With respect to the above-mentioned related technologies, the inventor of the utility model believes that there is a disadvantage that the electrically heated metal carrier is heated slowly. Utility Model Content

[0004] In order to improve the disadvantage that the power of the electrically heated metal carrier is limited, the present application provides a fast-heating automobile exhaust purifier.

[0005] The rapid heating automobile exhaust purifier provided in this application adopts the following technical solution:

[0006] A fast-heating automobile exhaust purifier comprises an exhaust purifier body, wherein the exhaust purifier body comprises a shell, an electrically heated metal carrier, an exhaust gas adsorption carrier, an inlet pipe 5 and an electrically heated joint;

[0007] A connecting hole is provided in the housing;

[0008] The outer circumference of the housing is fixed with a wire inlet pipe;

[0009] An electric heating metal carrier is fixed in the connecting hole, an exhaust gas adsorption carrier is arranged at one end of the electric heating metal carrier, and the exhaust gas adsorption carrier and the outermost spiral surface of the electric heating metal carrier are axially fixed in the connecting hole;

[0010] The electric heating joint passes through the inlet pipe from the outside to the inside and enters the connecting hole, and the inner end of the electric heating joint is electrically connected with the electric heating metal carrier.

[0011] By adopting the above technical scheme, the electrically heated metal carrier can heat up quickly, shortening the preheating time of the exhaust gas purifier. After preheating, it can quickly reach the working temperature, so that the harmful substances in the exhaust gas can be catalytically converted into harmless substances more quickly, significantly improving the exhaust gas purification efficiency. The electrically heated metal carrier is tightly combined with the exhaust gas adsorption carrier, occupies a small space and has high reliability. It has significant technical advantages in improving the exhaust gas purification effect, reducing pollutant emissions, saving energy and improving equipment reliability.

[0012] After the electric heating metal carrier is spirally coiled and bent into a cylindrical shape, a plurality of power connectors are fixedly arranged on the end surface of the electric heating metal carrier.

[0013] By adopting the above technical scheme, after the electric heating metal carrier is spirally coiled and bent to form a cylindrical shape, the surface area of ​​the electric heating metal carrier can be increased, the heat transfer is more uniform, thereby improving the heating efficiency, the heat distribution is more uniform, it is helpful to quickly reach the required working temperature, provide a longer airflow path, increase the contact time between the exhaust gas and the heating surface, so that the harmful substances in the exhaust gas can be more fully heated and catalytically converted, further improving the purification effect, and can withstand the thermal stress and vibration generated by the exhaust purifier during operation, and operate stably for a long time. The end face of the electric heating metal carrier is provided with a number of power connectors, which can realize multi-point power access, ensuring that the electric heating metal carrier can obtain sufficient power support in each part, improving the uniformity and reliability of heating, reducing heat loss, and improving thermal efficiency. The technical effects of high heating efficiency, good purification effect, high structural strength, high heat utilization rate, and convenient maintenance are achieved, and the overall performance and reliability of the automobile exhaust purifier are effectively improved.

[0014] The power connectors are arranged at intervals on the end surfaces of the coiled curved cylindrical electric heating metal carrier.

[0015] By adopting the above technical solution, all parts of the electrically heated metal carrier can be heated evenly, which improves the heating efficiency and uniformity, reduces the risk of single point failure, helps to optimize the current distribution, reduces resistance loss, converts electrical energy into thermal energy more efficiently, improves the heating effect, and makes the heating more uniform.

[0016] It helps to reduce electromagnetic interference, effectively suppress the electromagnetic noise caused by uneven current, and improve the electromagnetic compatibility of the system.

[0017] The power connector is electrically connected to the electrically heated metal carrier.

[0018] By adopting the above technical solution, the power connector is electrically connected to the electrically heated metal carrier, so that it can be quickly heated to the operating temperature, thereby accelerating the startup speed of the exhaust gas purifier, improving the purification efficiency, simplifying the circuit design and wiring, making the design of the entire system more compact and integrated, and reducing the complexity of installation and maintenance.

[0019] The unfolded electrically heated metal carrier is composed of a corrugated belt, a bottom flat belt and an upper flat belt combined into one body;

[0020] The corrugated belt is formed by bending a straight belt up and down to form a solid body with a plurality of triangular cross-sections. The triangular bottom of the corrugated belt is fixedly connected to the bottom flat belt 302, and the triangular top of the corrugated belt 301 is fixedly connected to the surface of the upper flat belt.

[0021] The triangular curved portion of the corrugated belt 301 forms a transition arc 1.

[0022] By adopting the above technical scheme, the combined structure of the corrugated belt, the bottom flat belt and the upper flat belt makes the electric heating metal carrier have higher mechanical strength and stability, can withstand the stress in high temperature and high pressure environment, and is not easy to deform and damage. The design of the corrugated belt increases the surface area of ​​the electric heating metal carrier, provides more heating and catalytic reaction surfaces, improves the heating efficiency and exhaust gas purification effect, and the triangular structure formed by the up and down reciprocating bending of the corrugated belt helps to evenly distribute heat, quickly convert electrical energy into thermal energy, and improve the heat conduction efficiency, so that the electric heating metal carrier can quickly reach the working temperature. The triangular structure and transition arc design of the corrugated belt form a complex airflow path, increase the contact time and contact area between the exhaust gas and the heating surface, improve the conversion efficiency of harmful substances in the exhaust gas, effectively disperse thermal stress, reduce stress concentration, extend the service life of the electric heating metal carrier, enhance the turbulent effect of the airflow, and improve the exhaust gas purification efficiency and overall thermal efficiency.

[0023] The tail gas adsorption carrier after unfolding is composed of a corrugated belt and a flat plate; the corrugated belt is formed by bending a straight belt up and down to form a solid body with a plurality of triangular cross-sections, and the triangular bottom of the corrugated belt is fixedly connected to the surface of the flat plate;

[0024] A triangular curved portion of the corrugated belt forms a transition arc three.

[0025] By adopting the above technical solution, the exhaust gas adsorption carrier is composed of a corrugated belt and a flat plate. The triangular structure of the corrugated belt increases the adsorption surface area, so that the harmful substances in the exhaust gas can more fully contact with the adsorption material, thereby improving the adsorption effect and purification efficiency. The transition arc design reduces the resistance of the airflow, optimizes the airflow path, reduces the pressure drop of the exhaust gas when passing through the adsorption carrier, and improves the overall efficiency of the exhaust gas purification system and the dispersion of thermal stress.

[0026] A wire hole is arranged in the wire inlet pipe, and the wire hole penetrates the connecting hole.

[0027] By adopting the above technical solution, the wire hole and the connecting hole are designed to be through-hole, so that the electric heating connector can directly enter the connecting hole from the inlet pipe through the wire hole, simplifying the wiring process, reducing the complexity of wiring, enhancing safety, neatness and beauty, facilitating maintenance and repair, and improving system reliability. The technical effect significantly improves the performance and service life of the automobile exhaust purifier.

[0028] The vertex angle A of the corrugated belt is between 52° and 62°.

[0029] By adopting the above technical solution, through the adjustment setting of the top angle A, the distance between the bottom plate and the upper plate can be adjusted synchronously, thereby achieving multiple technical effects such as optimizing the airflow path, enhancing heat conduction efficiency, reducing thermal stress, improving structural stability, optimizing the catalytic effect, and energy saving and environmental protection, which significantly improves the performance and utilization efficiency of the automobile exhaust purifier.

[0030] The material of the electrically heated metal carrier is an iron-chromium-aluminum electric heating alloy.

[0031] By adopting the above technical solution, iron-chromium-aluminum electrothermal alloy is used as the metal carrier material for electric heating. Through its technical advantages such as rapid heating capability, high temperature stability, corrosion resistance, energy saving and energy efficiency optimization, stable heating characteristics and environmental friendliness, it can significantly improve the performance and working efficiency of the exhaust gas purifier.

[0032] The material thickness of the corrugated belt is greater than or equal to the material thickness of the bottom flat belt and the material thickness of the upper flat belt.

[0033] By adopting the above technical solution, when the thickness of the corrugated belt is greater than or equal to the bottom flat belt and the upper flat belt, the heat conduction and heating performance between the corrugated belt, the bottom flat belt and the upper flat belt are more uniform, and the temperature distribution of the overall heating surface is consistent, thereby improving the overall performance and reliability of the exhaust gas purifier.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. The electrically heated metal carrier can heat up quickly, shortening the preheating time of the exhaust purifier. After preheating, it can quickly reach the working temperature, so that the harmful substances in the exhaust gas can be catalytically converted into harmless substances more quickly, significantly improving the exhaust gas purification efficiency. The electrically heated metal carrier is closely combined with the exhaust gas adsorption carrier, occupies a small space and has high reliability. It has significant technical advantages in improving the exhaust gas purification effect, reducing pollutant emissions, saving energy and improving equipment reliability.

[0036] 2. Rapid heating and efficient energy conversion: Using iron-chromium-aluminum electric heating alloy as the material of the electric heating metal carrier can quickly heat the exhaust purifier and efficiently convert electrical energy into thermal energy, which helps to reduce the startup time, quickly push the purifier to the operating temperature, and improve the overall energy efficiency ratio and energy saving effect.

[0037] 3. Stable structure and durability: The electric heating metal carrier is composed of a corrugated belt, a bottom flat belt and an upper flat belt, and the material thickness is the same, which achieves good structural stability and durability, reduces the risk of material fatigue and deformation, and prolongs the service life of the purifier.

[0038] 4. Optimized heat conduction and uniform heating: The design of the corrugated belt forms several triangular structures on its surface, which is conducive to enhancing the heat conduction efficiency and uniformly heating the exhaust gas adsorption carrier, optimizing and improving the uniform heating of the exhaust gas during the purification process and maximizing the purification efficiency.

[0039] 5. Compact design and simplified process: A wire hole is set inside the wire inlet pipe, which simplifies the circuit connection and wiring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of an embodiment of the rapid heating automobile exhaust purifier of the present application.

[0041] Figure 2 yes Figure 1 Left view of .

[0042] Figure 3 yes Figure 1 Right view of .

[0043] Figure 4 yes Figure 1 Expanded view of the CET heating metal carrier.

[0044] Figure 5 yes Figure 1 Expanded diagram of the tail gas adsorption carrier.

[0045] Explanation of the reference numerals: 1. exhaust gas purifier body; 2. outer shell; 201. connection hole; 3. electric heating metal carrier; 301. corrugated belt; 3011. transition arc one; 302. bottom flat belt; 303. upper flat belt; 304. power connector; 4. exhaust gas adsorption carrier; 401. corrugated belt one; 402. flat plate; 4011. transition arc three; 4012. transition arc four; 5. inlet pipe; 501. wire hole; 6. electric heating connector. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-5 This application is described in further detail.

[0047] The present application embodiment discloses a fast heating automobile exhaust purifier. Figure 1 , including an exhaust gas purifier body 1, the exhaust gas purifier body 1 includes an outer shell 2, an electric heating metal carrier 3, an exhaust gas adsorption carrier 4, an inlet pipe 5 and an electric heating connector 6; a connecting hole 201 is arranged in the outer shell 2, and an inlet pipe 5 is fixedly arranged on the outer circumference of the outer shell 2. The electric heating connector 6 penetrates the inlet pipe 5 from the outside to the inside and enters the connecting hole 201. The inner end of the electric heating connector 6 is electrically connected to the electric heating metal carrier 3. When the application is implemented, the other end of the electric heating connector 6 is electrically connected to the power supply of the motor vehicle. When a certain amount of electric energy is input into the exhaust gas purifier body 1, the electric energy passes through the inherent resistance of the electric heating metal carrier 3 to generate heat energy to heat up, and can quickly reach the working temperature. The connecting hole 2 01, an electric heating metal carrier 3 is fixedly arranged, an exhaust gas adsorption carrier 4 is arranged at one end of the electric heating metal carrier 3, a gap is left between the end face of the electric heating metal carrier 3 and the end face of the adjacent exhaust gas adsorption carrier 4, the exhaust gas adsorption carrier 4 and the outermost spiral surface of the electric heating metal carrier 3 are axially fixed in the connecting hole 201, so that the harmful substances in the exhaust gas can be catalytically converted into harmless substances more quickly, which significantly improves the exhaust gas purification efficiency. The electric heating metal carrier is tightly combined with the exhaust gas adsorption carrier, occupies a small space and has high reliability, and has significant technical advantages in improving the exhaust gas purification effect, reducing pollutant emissions, saving energy and improving equipment reliability.

[0048] Reference Figure 2 After the electric heating metal carrier 3 is spirally coiled and bent into a cylindrical shape, the surface area is increased, and the distribution and transfer efficiency of heat energy are improved. A plurality of power connectors 304 are fixedly arranged on the end surface of the electric heating metal carrier 3. The power connectors 304 are evenly spaced on the end surface of the coiled and bent cylindrical electric heating metal carrier 3. The power connectors 304 are electrically connected to the electric heating metal carrier 3, and are electrically connected to the surface of the electric heating metal carrier 3 by welding or other electrical connection methods, so as to convert electrical energy into thermal energy, thereby heating the electric heating metal carrier 3. The electric heating metal carrier 3 is processed to form the desired spirally coiled and bent cylindrical structure. At the designed position, a plurality of power connectors 304 are welded or installed on the end surface of the electric heating metal carrier 3, and the positions are evenly spaced. The electrical connection between the power connector 304 and the electrically heated metal carrier 3 is good, the current can be effectively transmitted and heat the carrier surface, the spiral winding design of the electrically heated metal carrier 3 and the arrangement of the power connector 304 can quickly heat the carrier surface, and convert electrical energy into thermal energy through the power connector, which effectively accelerates the exhaust gas purifier to reach the operating temperature and improves the purification efficiency. The heat energy is evenly distributed on the entire carrier surface to avoid local overheating or cooling, thereby improving the uniformity and stability of heating, with a compact structure and high space utilization: high temperature resistance and long life. Through the above technical characteristics, the performance and reliability of the exhaust gas purifier can be effectively improved, and a fast and uniform heating effect can be achieved, thereby more effectively purifying vehicle exhaust emissions.

[0049] Reference Figure 4 The unfolded electric heating metal carrier 3 is composed of a corrugated belt 301, a bottom flat belt 302 and an upper flat belt 303; the corrugated belt 301 increases the surface area of ​​the electric heating metal carrier, improves the heat conduction efficiency, provides efficient and rapid heating, and can quickly heat and maintain uniform temperature distribution. The corrugated belt 301 is formed by a straight belt that is bent up and down to form a solid with a plurality of triangular cross-sections. The triangular bottom of the corrugated belt 301 is fixedly connected to the bottom flat belt 302, and the triangular top of the corrugated belt 301 is fixedly connected to the surface of the upper flat belt 303. Through the triangular structure of the corrugated belt 301, the electric heating metal carrier 3 has good mechanical strength and stability, and can withstand high temperature and working pressure. The triangular bending part of the corrugated belt 301 constitutes a transition arc 3011, which helps to optimize the airflow channel and improve the heat exchange efficiency, thereby improving the exhaust gas purification effect.

[0050] Reference Figure 5 The unfolded tail gas adsorption carrier 4 is composed of a corrugated belt 401 and a flat plate 402; the corrugated belt 401 is formed by bending a straight belt up and down to form a solid body with a plurality of triangular cross-sections, which increases the surface area of ​​the tail gas adsorption carrier 4, increases the contact area between the tail gas and the adsorption material, thereby enhancing the adsorption efficiency, and optimizes the air flow channel, so that the tail gas can pass through the adsorption carrier more evenly, thereby improving the purification effect. The triangular bottom of the corrugated belt 401 is fixedly connected to the surface of the flat plate 402, which enhances the overall mechanical strength of the tail gas adsorption carrier 4, can better withstand working pressure and mechanical stress, and improves stability and durability;

[0051] In the specific implementation, the straight belt is processed into a corrugated belt 401, which is bent back and forth to form a number of triangular solid structures. The triangular bottom of the corrugated belt 401 is fixedly connected to the flat plate 402 to form a stable structure. The exhaust gas adsorption carrier 4 is installed at one end of the electrically heated metal carrier 3 so that it is axially fixed to the outermost spiral surface of the electrically heated metal carrier 3 in the connecting hole 201, so that the exhaust gas adsorption carrier 4 is tightly connected to the electrically heated metal carrier 3 to achieve effective conduction and treatment of heat energy and exhaust gas. When the exhaust gas flows through the exhaust gas adsorption carrier 4, an effective airflow channel is formed to improve the uniformity and purification effect of the airflow. The fast-heating automobile exhaust purifier can be applied to the exhaust emission systems of various motor vehicles, and is suitable for situations where fast heating and efficient purification of exhaust gas are required. By adopting the electrically heated metal carrier 3 and the exhaust gas adsorption carrier 4 designed with the corrugated belt 401, the purifier can reach the working temperature in a short time, quickly purify the harmful substances in the exhaust gas, meet strict emission standards, and have broad market application prospects.

[0052] Reference Figure 1A wire hole 501 is provided in the inlet pipe 5, and the wire hole 501 penetrates the connection hole 201. The wire hole 501 is provided so that the electric heating connector 6 can smoothly pass through the inlet pipe 5 and enter the connection hole 201 to achieve electrical connection with the electric heating metal carrier 3, thereby simplifying the electrical connection process and standardizing the wiring of the electric heating connector 6 to avoid damage to the electric heating connector 6 during the connection process, thereby improving the safety and reliability of the entire system, making the layout clearer and more orderly, facilitating maintenance and overhaul work, and reducing the difficulty and time cost of maintenance; the inlet pipe 5 is made of high temperature resistant and corrosion resistant metal material to ensure stability and durability in high temperature environments;

[0053] A through hole, namely, a wire hole 501, is provided on the side or bottom of the inlet pipe 5. The wire hole 501 is connected to the connection hole 201. The size design needs to ensure that the electric heating connector 6 can pass smoothly. In the automobile exhaust purification system, a fast heating exhaust purifier is used to effectively simplify the electrical connection process and improve the safety and reliability of the system. The electric heating metal carrier 3 can be heated quickly and stably to ensure that harmful substances in the exhaust gas are efficiently purified.

[0054] Reference Figure 3 , the vertex angle A of the corrugated belt 301 is between 52° and 62°, which effectively guides the flow of exhaust gas and reduces airflow resistance. The moderate vertex angle A increases the surface area of ​​the corrugated belt 301, making the contact area between the exhaust gas and the adsorption material larger, improving the adsorption efficiency and purification capacity and uniform heat distribution, preventing local overheating, improving the heating efficiency and safety of the electrically heated metal carrier 3, minimizing the pressure loss during the flow of exhaust gas, and improving the overall efficiency of the exhaust gas purification system.

[0055] In the application, the material of the electrically heated metal carrier 3 is an iron-chromium-aluminum electric heating alloy, and the material thickness of the corrugated belt 301 is the same as the material thickness of the bottom flat belt 302 and the material thickness of the upper flat belt 303.

[0056] Iron-chromium-aluminum electrothermal alloy is selected as the material of the electric heating metal carrier 3. It has good resistivity, high-temperature strength and oxidation resistance, and is suitable for electric heating elements in high-temperature environments. When the spacing distance between the bottom flat belt 302 and the upper flat belt 303 is adjusted, the folding angle of the corrugated belt 301 is synchronously adaptively changed, and the rhythm of rapid heating and ventilation effect of the electric heating metal carrier 3 are synchronously adjusted.

[0057] In the application implementation, when the thickness of the corrugated belt 301 is higher than the thickness of the bottom flat belt 302, according to the design of the corrugation of the corrugated belt 301, the material thickness of the bottom flat belt 302 is 0.44 times to 0.5 times that of the corrugated belt, the heat per unit area of ​​the flat belt is similar to that of the corrugated sheet;

[0058] When the thickness of the corrugated belt 301 is the same as that of the bottom flat belt 302, the heat generation per unit area of ​​the bottom flat belt 302 is 2.2 to 2.4 times that of the corrugated belt. Under the condition of limited power, the bottom flat belt 302 reaches the catalyst ignition temperature first, which is more conducive to the ignition of the three-way purifier, thereby increasing the heating rate of the carrier.

[0059] The implementation principle of the automobile exhaust purifier that heats rapidly in the present application embodiment is:

[0060] 1. The heat distribution inside the carrier can be adjusted by adjusting the thickness of the corrugated belt and the flat belt:

[0061] By using the combination of corrugated and flat plates, the power distribution of the corrugated and flat plates can be adjusted by adjusting the thickness of the flat plate. The resistance of the corrugated belt material is about 1.5 times that of the flat belt with the same thickness. The power of the flat belt can be 1.5 times that of the corrugated belt when the total power remains unchanged. At the same time, because the surface area of ​​the flat belt is lower than that of the corrugated belt, the surface heat of the flat belt can be more than twice that of the corrugated belt. It helps to solve the problem of whether the power of the motor vehicle battery is sufficient. Under the condition of equal power, concentrating the heat in a local position can make the place ignite quickly, and obtain additional heat source through the ignition of exhaust gas, so as to achieve the purpose of rapid ignition of the entire catalytic system.

[0062] Specifically, when the meter resistance of a 100-mesh corrugated belt with a thickness of 0.08 mm is about 2.75Ω, the resistance of a flat belt with the same thickness is 1.74Ω. In the production of electrically heated metal carriers, one method is to use a combination of 1 corrugated belt and 2 flat belts. When the length of the materials used is 0.4 meters, the resistance of the corrugated belt is 1.1Ω, and the resistance of the flat belt is 0.7Ω. When 12 motor vehicle batteries are added, the power of the flat belt is about 206 watts, and the power of the corrugated belt is about 131 watts. At the same time, according to measurements, the area of ​​the flat belt is 0.65 times that of the corrugated belt, and the power per unit area of ​​the flat belt is 2.4 times that of the corrugated belt, so the flat belt can heat up quickly.

[0063] 2. The electric heating metal carrier increases the overall resistance within the effective area

[0064] The materials used for electric heating metal carriers are all iron-chromium-aluminum electric heating alloy materials, which have stable performance, low cost, good high temperature resistance, are suitable for brazing, and suitable for surface coating with catalytic coating. Commonly used material grades are iron-chromium-aluminum 216, 205 and 255. The resistivity is 1.42×10-6Ω·m.

[0065] 3. In order to increase the resistance and further increase the local temperature of the electric heating device, the flat belt and the corrugated belt are made into a porous structure, and the point heating power per unit area of ​​the contact part between the holes is further increased to achieve the effect of rapid ignition.

[0066] The beneficial effects of the automobile exhaust purifier with rapid heating in the embodiment of the present application are:

[0067] 1. Rapid heating: Using iron-chromium-aluminum electric heating alloy material, the electrically heated metal carrier 3 can heat up quickly and quickly reach the working temperature, thereby shortening the preheating time of the exhaust purifier and reducing the emission of harmful substances in the exhaust gas.

[0068] 2. Uniform heat distribution: The same thickness design of the corrugated belt 301, the bottom flat belt 302 and the upper flat belt 303, and the top angle A of the corrugated belt 301 being between 52° and 62°, help to optimize the distribution of heat energy, prevent local overheating or cooling, and make the heat distribution of the entire electrically heated metal carrier 3 uniform, thereby improving the heating efficiency and safety.

[0069] 3. High-efficiency purification: The electric heating metal carrier 3 is closely combined with the exhaust gas adsorption carrier 4, which increases the contact area between the exhaust gas and the adsorption material and improves the purification efficiency of the exhaust gas. The triangular structure of the corrugated belt 401 and the transition arc 4011 design effectively optimize the airflow channel and further improve the purification effect.

[0070] 4. Stable structure: The electric heating metal carrier 3 adopts a combined structure of corrugated belt and flat belt, has good mechanical strength and stability, can withstand high temperature and working pressure, and the iron-chromium-aluminum electric heating alloy material has high temperature strength and anti-oxidation properties, ensuring the long-term stable operation of the equipment.

[0071] 5. Energy saving: By optimizing the power distribution of the corrugated belt and the flat belt, the surface heat of the flat belt is concentrated, which can quickly ignite the exhaust gas, obtain additional heat source, realize the rapid ignition of the entire catalytic system, reduce energy consumption, and improve fuel utilization.

[0072] 6. Simplified electrical connection: A wire hole 501 is provided in the inlet pipe 5, and the electric heating connector 6 can be smoothly inserted and electrically connected with the electric heating metal carrier 3, which simplifies the electrical connection process, improves the safety and reliability of the system, and has a clear layout for easy maintenance and repair.

[0073] The fast heating automobile exhaust purifier of the embodiment of the present application achieves the effects of fast heating and efficient purification by optimizing the design and material selection of the electrically heated metal carrier 3. The design of the corrugated belt 301, the bottom flat belt 302 and the upper flat belt 303 of the same thickness improves the uniform distribution of heat energy, the stable structure, and the performance and reliability of the exhaust purifier; at the same time, the simplified electrical connection process and efficient heat energy conduction further improve the safety and energy utilization of the system. This design has significant technical advantages in improving the exhaust purification effect, reducing pollutant emissions, saving energy and improving equipment reliability.

[0074] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fast-heating automobile exhaust purifier, comprising an exhaust purifier body (1), characterized in that: The exhaust gas purifier body (1) comprises a housing (2), an electrically heated metal carrier (3), an exhaust gas adsorption carrier (4), an inlet pipe (5) and an electrically heated joint (6); The housing (2) is provided with a connection hole (201); An inlet pipe (5) is fixedly arranged on the outer circumference of the housing (2); An electric heating metal carrier (3) is fixedly arranged in the connection hole (201), an exhaust gas adsorption carrier (4) is arranged at one end of the electric heating metal carrier (3), and the exhaust gas adsorption carrier (4) and the outermost spiral surface of the electric heating metal carrier (3) are axially fixed in the connection hole (201); The electric heating connector (6) is inserted from the outside to the inside into the inlet pipe (5) and enters the connection hole (201). The inner end of the electric heating connector (6) is electrically connected to the electric heating metal carrier (3). After the electric heating metal carrier (3) is spirally coiled and bent into a cylindrical shape, a plurality of power connectors (304) are fixedly arranged on the end surface of the electric heating metal carrier (3). The unfolded electrically heated metal carrier (3) is composed of a corrugated belt (301), a bottom flat belt (302) and an upper flat belt (303) combined into one body; The corrugated belt (301) is formed by bending a straight belt up and down to form a solid body with a plurality of triangular cross-sections, the triangular bottom of the corrugated belt (301) is fixedly connected to the bottom flat belt (302), and the triangular top of the corrugated belt (301) is fixedly connected to the surface of the upper flat belt (303); The triangular curved portion of the corrugated belt (301) forms a transition arc 1 (3011). The material thickness of the corrugated belt (301) is greater than or equal to the material thickness of the bottom flat belt (302) and the material thickness of the upper flat belt (303).

2. The rapid heating automobile exhaust purifier according to claim 1, characterized in that: The power connectors (304) are arranged at intervals on the end surface of the coiled curved cylindrical electric heating metal carrier (3).

3. The rapid heating automobile exhaust purifier according to claim 2 is characterized in that: The power connector (304) is electrically connected to the electrically heated metal carrier (3).

4. The rapid heating automobile exhaust purifier according to claim 1, characterized in that: The tail gas adsorption carrier (4) after unfolding is composed of a corrugated belt (401) and a flat plate (402) combined into one body; the corrugated belt (401) is formed by bending a straight belt up and down to form a solid body with a plurality of triangular cross-sections, and the triangular bottoms of the corrugated belt (401) are fixedly connected to the surface of the flat plate (402); The triangular curved portion of the corrugated belt one (401) forms a transition arc three (4011).

5. The rapid heating automobile exhaust purifier according to claim 1, characterized in that: The inlet pipe (5) is provided with a wire hole (501), and the wire hole (501) and the connection hole (201) are interpenetrating.

6. The rapid heating automobile exhaust purifier according to claim 1, characterized in that: The vertex angle A of the corrugated belt (301) is between 52° and 62°.

7. The rapid heating automobile exhaust purifier according to claim 1, characterized in that: The material of the electrically heated metal carrier (3) is an iron-chromium-aluminum electric heating alloy.

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