High-turbulence and low-backpressure metal honeycomb carrier
By designing rectangular pores and staggered arrangements on the metal honeycomb carrier, the problems of poor turbulence effect and high back pressure are solved, efficient turbulence and low back pressure effects are achieved, and the performance of the catalytic reaction is improved.
Patent Information
- Application Number
- CN202422520867.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-16
AI Technical Summary
Existing metal honeycomb carriers have poor turbulence effect and high back pressure, which leads to increased fuel consumption.
A high turbulence and low back pressure metal honeycomb carrier is designed. By setting rectangular air holes on flat belts and corrugated belts and adopting staggered and welding methods, longitudinal and transverse turbulence effects are achieved while reducing back pressure.
A good turbulence effect is achieved and back pressure is reduced, which improves the efficiency of the catalytic reaction and reduces fuel consumption.
Smart Images
Figure CN223374494U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of motor vehicle metal carriers, in particular to a high-turbulence and low-back-pressure metal honeycomb carrier. Background Art
[0002] Currently, metal substrates are becoming the mainstream catalyst support for vehicle exhaust purification. The core component of a motor vehicle exhaust purification catalyst is a substrate coated with an active coating. When exhaust gas passes through the purifier, it comes into contact with the active coating, causing a catalytic reaction that converts harmful components in the vehicle exhaust into harmless ones. Therefore, the contact time and area between the exhaust gas and the active coating are important factors affecting the effectiveness of the catalytic reaction.
[0003] Although the existing metal honeycomb carrier has a certain turbulent effect, it is a wave band with holes punched on it, which can only allow the gas to flow horizontally through the wave band, but cannot flow longitudinally in the direction of the flat band, resulting in poor turbulent effect; at the same time, the reverse pressure of the wave band increases the back pressure of the carrier, resulting in increased fuel consumption, and ultimately causing the carrier to fail to work normally. Summary of the Invention
[0004] The purpose of the utility model is to provide a high-turbulence and low-back-pressure metal honeycomb carrier, which can achieve a good turbulence effect when gas passes through and reduce the back pressure at the same time.
[0005] The purpose of this utility model is achieved in this way:
[0006] A high-turbulence and low-back-pressure metal honeycomb carrier comprises a shell and a core arranged in the shell, the core comprising a flat belt and a corrugated belt, a plurality of first air holes evenly distributed on the surface of the flat belt, a plurality of second air holes evenly distributed on the corrugated belt, the corrugated belt being arranged on the surface of the flat belt, and the flat belt being arranged in the shell by rolling, the first air holes being arranged on the surface of the flat belt in the form of openings, the second air holes being openings with outer pore walls formed by pressing the surface of the corrugated belt outward, and when the corrugated belt cover is arranged on the surface of the flat belt, a plurality of second air holes are arranged between a plurality of first air holes at intervals.
[0007] The present invention is further configured such that the first air hole is rectangular, a pressing fold is formed on the outer hole wall of the second air hole, and the opening is rectangular.
[0008] The present invention is further configured such that the size of the first air hole is larger than the size of the opening.
[0009] The utility model is further configured such that the corrugated belt is arranged on the surface of the flat belt in a welding manner.
[0010] The present invention is further configured such that the upper and lower layers of the second air holes are staggered.
[0011] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:
[0012] The honeycomb carrier provided by the present invention can achieve a longitudinal turbulence effect through the first longitudinal pores while satisfying the existing lateral turbulence effect through the wave bands; the second pores with outer pore walls can reduce the back pressure during the gas turbulence process. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the expansion of the flat belt of the utility model;
[0014] Figure 2 This is a schematic diagram of the expansion of the corrugated belt of the utility model;
[0015] Figure 3 This is a schematic diagram of the expansion of the corrugated belt of the utility model being pressed onto a flat belt;
[0016] Figure 4 It is a structural schematic diagram of the airflow direction of the utility model;
[0017] Figure 5 1 is a cross-sectional schematic diagram of the present utility model;
[0018] Reference numerals:
[0019] 1- shell;
[0020] 2-flat belt; 20-first air hole;
[0021] 3-corrugated belt; 30-second air hole; 31-outer hole wall; 32-opening; 33-pressed crease. DETAILED DESCRIPTION
[0022] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1 — Figure 5 :
[0023] A high-turbulence and low-back-pressure metal honeycomb carrier comprises a shell 1 and a core arranged in the shell 1, the core comprising a flat belt 2 and a corrugated belt 3, a plurality of first air holes 20 evenly distributed on the surface of the flat belt 2, a plurality of second air holes 30 evenly distributed on the corrugated belt 3, the corrugated belt 3 being arranged on the surface of the flat belt 2, and the flat belt 2 being arranged in the shell 1 by rolling, the first air holes 20 being arranged on the surface of the flat belt 2 in the form of openings, the second air holes 30 being openings 32 with outer hole walls 31 formed by pressing the surface of the corrugated belt 3 outward, and when the corrugated belt 3 cover is arranged on the surface of the flat belt 2, the plurality of second air holes 30 are arranged at intervals between the plurality of first air holes 20.
[0024] During implementation, the air holes on the flat and corrugated belts are pre-fabricated, and the corrugated belts are positioned on the flat belt surface, allowing the second air holes on the upper corrugated belt to correspond with the first air holes. The first air holes are spaced uniformly across each row and column, while the vertical spacing between the second air holes is the same as the first, but the left-right spacing between the second air holes is twice the left-right spacing between the first, achieving a spaced arrangement.
[0025] like Figure 4 As shown, when the gas enters the first air hole and the second air hole, the interval setting allows the exhaust gas to fully contact the corrugated belt and the flat belt surface and undergo turbulent flow. During the turbulent flow, the gas collides at multiple angles, thereby reducing the distance from the flat belt surface and reducing the back pressure.
[0026] Preferably, the first air hole 20 is rectangular, a pressing fold 33 is formed on the outer hole wall of the second air hole 30, and the opening 32 is rectangular.
[0027] In the above structure, the rectangular design is adopted, which not only facilitates the clamping and limiting of the second air hole 30, but also reduces the large gap between the flat belt and the corrugated belt during the pressing process.
[0028] Preferably, the size of the first pore 20 is larger than that of the opening 32. In the implementation process, the size of the opening is smaller than that of the first pore 20, so when gas passes through, the first pore has a larger area, so the pressure generated is smaller, thereby reducing a certain amount of back pressure.
[0029] Preferably, the corrugated belt 3 is arranged on the surface of the flat belt 2 in a welding manner.
[0030] Preferably, the upper and lower layers of the second air holes 30 are staggered.
[0031] In the above structure, the two adjacent layers of second air holes are designed in a staggered manner, which can enhance the lateral and longitudinal turbulence effects when the exhaust gas enters, thereby reducing the back pressure.
[0032] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A high turbulence and low back pressure metal honeycomb carrier, comprising a shell (1) and a core arranged in the shell (1), characterized in that: The core comprises a flat belt (2) and a corrugated belt (3), wherein a plurality of first air holes (20) are uniformly distributed on the surface of the flat belt (2), and a plurality of second air holes (30) are uniformly distributed on the corrugated belt (3), wherein the corrugated belt (3) is arranged on the surface of the flat belt (2), and the flat belt (2) is arranged in the shell (1) by rolling, wherein the first air holes (20) are arranged on the surface of the flat belt (2) in the form of openings, and the second air holes (30) are openings (32) with outer hole walls (31) formed by pressing the surface of the corrugated belt (3) outwards, and when the corrugated belt (3) cover is arranged on the surface of the flat belt (2), the plurality of second air holes (30) are arranged between the plurality of first air holes (20) at intervals.
2. The high turbulence and low back pressure metal honeycomb matrix according to claim 1, characterized in that: The first air hole (20) is rectangular, a pressing fold (33) is formed on the outer hole wall of the second air hole (30), and the opening (32) is rectangular.
3. The high turbulence and low back pressure metal honeycomb matrix according to claim 2, characterized in that: The size of the first air hole (20) is larger than the size of the opening (32).
4. A high turbulence and low back pressure metal honeycomb matrix according to claim 1 or 2, characterized in that: The corrugated belt (3) is arranged on the surface of the flat belt (2) in a welding manner.
5. The high turbulence and low back pressure metal honeycomb matrix according to claim 1, characterized in that: The upper and lower layers of the second air holes (30) are arranged in a staggered manner.