Platform-based multifunctional purifier

Abstract

The utility model provides a platform multifunctional purifier which comprises a barrel assembly, the air inlet end of the barrel assembly is connected with an air inlet clamshell assembly, the air inlet end of the air inlet clamshell assembly is provided with an air inlet flange, and the air outlet end of the barrel assembly is sequentially connected with an air outlet end cone and an air outlet bent pipe. An air outlet flange is arranged at the air outlet end of the air outlet bent pipe; the barrel assembly comprises a spoiler and an outer barrel, the outer barrel is provided with a built-in heat insulation cover, and a catalyst is arranged in the built-in heat insulation cover; the spoiler covers the air inlet end of the built-in heat insulation cover and is fixedly connected with the air inlet end of the outer cylinder, and the air inlet end and the air outlet end of the outer cylinder are both fixedly connected to the built-in heat insulation cover in a hole diameter shrinking mode. The purifier disclosed by the utility model is suitable for extreme conditions that the boundary space of a hybrid power vehicle model is extremely small and the vehicle model has very high requirements on working conditions, and can solve the three problems of flow field index, reliability index and platform production at one time.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile exhaust systems, and in particular relates to a platform-based multifunctional purifier. Background Art

[0002] With the improvement of the rationality of space layout of hybrid passenger cars, the layout space of the car not only needs to arrange some necessary parts and systems such as the engine and fuel tank required by traditional fuel vehicles, but also needs to add related modules such as batteries and motors. Therefore, the layout space left for the exhaust system is extremely compact; due to the promulgation of relevant policies of National VI, the improvement of exhaust emission requirements has also correspondingly increased the overall reliability standards of the exhaust system. Therefore, the current exhaust system design faces two major problems: the reduction of the space available for layout and the need to improve reliability.

[0003] Currently, most automobile exhaust system purifiers are produced in the form of a heat shield wrapped around the outside of the cylinder; due to the small space of hybrid vehicles, there is not enough space for many brackets, so the purifier cylinder is generally equipped with some brackets connected to the cylinder body and brackets supporting the pressure difference pipeline. Since the bracket needs to be welded to the cylinder, a large hole is dug in the heat shield to avoid interference with the bracket and its weld. Once the number of brackets on the cylinder exceeds two, some problems will arise, such as: 1. Too much heat shield digging affects the thermal insulation performance; 2. Too much and too complicated heat shield avoidance increases the mold cost and design difficulty. Once the new standard is promulgated, the space will be more compact, resulting in the heat shield being useless. There is currently a lack of relevant research in this area. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a platform-based multifunctional purifier. The purifier of the utility model can be mass-produced and platform-based, can meet the heat insulation effect, and can improve the flow field. It is suitable for extreme situations where the hybrid vehicle has very little boundary space and the vehicle has very high requirements for working conditions. It can solve the three major problems of flow field index, reliability index and platform-based production at one time.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the embodiment of the utility model is:

[0006] A platform-based multifunctional purifier comprises a cylinder assembly, the air inlet end of the cylinder assembly is connected to an air inlet clam shell assembly, the air inlet end of the air inlet clam shell assembly is provided with an air inlet flange, the air outlet end of the cylinder assembly is connected to an air outlet end cone and an air outlet elbow in sequence, and the air outlet end of the air outlet elbow is provided with an air outlet flange;

[0007] The cylinder assembly comprises a spoiler and an outer cylinder, the outer cylinder is provided with a built-in heat insulation cover, and a catalyst is arranged inside the built-in heat insulation cover;

[0008] The spoiler covers the air inlet end of the built-in heat shield and is fixedly connected to the air inlet end of the outer cylinder. The air inlet end and the air outlet end of the outer cylinder are both fixedly connected to the built-in heat shield with their apertures shrunk.

[0009] Furthermore, heat insulation cotton is filled between the outer cylinder and the built-in heat insulation cover, and a shock-absorbing pad is arranged between the built-in heat insulation cover and the catalyst.

[0010] Furthermore, the spoiler is provided with spiral air inlet holes, counter-punch holes and spoiler holes. The spiral air inlet holes and counter-punch holes are arranged at intervals on the outer circle of the spoiler, and the spoiler holes are distributed on the inner circle and the outer circle of the spoiler.

[0011] Furthermore, the spiral air inlet hole is punched out by the spoiler plate, and forms an angle of 20-40° with the spoiler plate; the punching hole and the spoiler hole are through holes.

[0012] Furthermore, the outer cylinder and the built-in heat insulation cover are both made of stainless steel with a thickness of more than 1 mm.

[0013] Furthermore, the distances between the two ends of the catalyst and the two ends of the shock-absorbing pad and the built-in heat insulation cover are equal.

[0014] Furthermore, the thermal insulation cotton is ceramic fiber cotton with a thickness of 1-3 mm.

[0015] The beneficial effects of the technical solution provided by the embodiment of the utility model are:

[0016] 1. The setting of the built-in heat insulation cover in the purifier of the utility model makes it unnecessary to wrap the outside of the cylinder with an additional heat insulation cover; and because the heat insulation cover of the purifier is built-in, the outer surface of the cylinder can be arranged with brackets of any size and number and shape without interfering with the weld, and there is no need to consider the problem of poor insulation effect caused by insufficient wrapping rate of the heat insulation cover, and at the same time, it can reduce the space occupied by the purifier in the whole vehicle.

[0017] 2. The platform-based multifunctional purifier of the utility model has a spoiler and a built-in heat insulation cover, realizing the two functions of built-in heat insulation and spoiler. If spoiler is not needed, the spoiler can be removed and a welding process can be reduced. If spoiler function is needed, the spoiler can be welded.

[0018] 3. In terms of technology, the barrel assembly of the purifier of the utility model meets the conditions of platform-based mass production. If different spoiler effects are required, different spoiler plates can be replaced; if different heat insulation effects are required, different heat insulation covers and heat insulation cottons can be replaced.

[0019] 4. The purifier of the utility model is suitable for extreme situations where the boundary space of hybrid vehicles is very small and the vehicle has very high requirements for working conditions. When the space is small and the reliability requirements are high, the cylinder heat shield can be directly removed, so that the bracket can be arranged more reasonably; at the same time, due to the presence of the spoiler, the eccentricity and uniformity of the intake end cone airflow can also be improved. Because under the compact space and increasingly stringent exhaust standards, the optimized shape of the intake end cone is limited, and it is difficult to adjust the eccentricity and uniformity to the qualified line. Therefore, the purifier solves the three major problems of flow field indicators, reliability indicators and platform production at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an assembly diagram of the platform-based multifunctional purifier of the utility model.

[0021] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the cartridge assembly in a platform-based multifunctional purifier.

[0022] Figure 3 yes Figure 2 Cross-sectional view of the mid-barrel assembly.

[0023] Figure 4 yes Figure 2 Left side view of the middle cylinder assembly.

[0024] Figure 5 yes Figure 2 Exploded view of the mid-barrel assembly.

[0025] Figure 6 yes Figure 2 Schematic diagram of the structure of the spoiler in the barrel assembly.

[0026] Explanation of the reference numerals: a-inlet flange; b-inlet clamshell assembly; c-cylinder assembly; d-outlet cone; e-outlet elbow; f-outlet flange; 1-spoiler; 2-outer cylinder; 3-insulation cotton; 4-built-in insulation cover; 5-shock-absorbing pad; 6-catalyst; 11-spiral inlet hole; 12-counter-punch hole; 13-spoiler hole. DETAILED DESCRIPTION

[0027] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "inside, outside", "up, down", "left, right", etc. are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] Example 1

[0030] like Figure 1-5 As shown, a platform-based multifunctional purifier includes a cylinder assembly c, the air inlet end of the cylinder assembly c is connected to the air inlet clam shell assembly b, the air inlet end of the air inlet clam shell assembly b is provided with an air inlet flange a, the air outlet end of the cylinder assembly c is connected to the air outlet end cone d and the air outlet elbow e in sequence, and the air outlet end of the air outlet elbow e is provided with an air outlet flange f;

[0031] The cylinder assembly c comprises a spoiler 1 and an outer cylinder 2, the outer cylinder 2 is provided with a built-in heat insulation cover 4, and a catalyst 6 is arranged inside the built-in heat insulation cover 4;

[0032] The spoiler 1 covers the air inlet end of the built-in heat insulation cover 4 and is fixedly connected to the air inlet end of the outer cylinder 2. The air inlet end and the air outlet end of the outer cylinder 2 are both fixedly connected to the built-in heat insulation cover 4 with their apertures shrunk.

[0033] The space between the outer cylinder 2 and the built-in heat insulation cover 4 is filled with heat insulation cotton 3 , and the space between the built-in heat insulation cover 4 and the catalyst 6 is provided with a shock absorbing pad 5 .

[0034] like Figure 6 As shown, the spoiler 1 is provided with spiral air inlet holes 11, counter holes 12 and spoiler holes 13. The spiral air inlet holes 11 and counter holes 12 are arranged at intervals on the outer circle of the spoiler 1, and the spoiler holes 13 are distributed on the inner circle and the outer circle of the spoiler 1.

[0035] The spiral air inlet 11 is punched out of the spoiler 1, and forms an angle of 20-40° with the spoiler 1; the punching hole 12 and the spoiler hole 13 are through holes. As a preferred embodiment, the angle between the spiral air inlet 11 and the spoiler 1 is 30°.

[0036] The outer cylinder 2 and the built-in heat insulation cover 4 are both made of stainless steel with a thickness of more than 1 mm.

[0037] The two ends of the catalyst 6 are equidistant from the two ends of the shock absorbing pad 5 and the two ends of the built-in heat insulation cover 4 .

[0038] The heat insulation cotton 3 is made of ceramic fiber cotton with a thickness of 1-3 mm.

[0039] Among them, the air inlet flange a is made of 3 series, 4 series stainless steel or Q235B, and the air inlet clam shell assembly b, the air outlet cone d and the air outlet elbow e are made of 3 series or 4 series stainless steel.

[0040] The thickness of the built-in heat insulation cover 4 in the cylinder assembly c is 0.5-1.5 mm thicker than that of the traditional heat insulation cover. The traditional external heat insulation cover plays a role of heat insulation; the heat insulation cover of the utility model also plays a role of heat insulation and reserves space for installing a spoiler.

[0041] The spoiler 1 is made of 3 series or 4 series stainless steel, and its shape and structure can be used Figure 6 The spoiler structure shown, other types of spoilers can also be used;

[0042] The outer cylinder 2 is made of 3 series or 4 series stainless steel. The outer cylinder 2 is a cylinder with openings at both ends and is provided with shrinkage openings at both ends.

[0043] The thickness of the heat insulating cotton 3 is 1-3 mm, and ceramic fiber cotton with a temperature resistance of 1000° C. is used.

[0044] The built-in heat shield 4 is made of 3 series or 4 series stainless steel.

[0045] When assembling the purifier, first insert the shock-absorbing pad 5 into the catalyst 6, ensuring that the distance between the two ends of the shock-absorbing pad 5 and the two ends of the catalyst 6 is equal, and then insert the shock-absorbing pad 5 and the catalyst 6 into the built-in heat insulation cover 4, also ensuring that the distance between the two ends of the catalyst 6 and the built-in heat insulation cover 4 is equal.

[0046] The heat insulation cotton 3 is pasted on the inner wall of the outer cylinder 2 and the two ends are spun and closed. Next, the outer cylinder with the heat insulation cotton pasted is inserted into the built-in heat insulation cover 4 installed with the catalyst 6 and the shock-absorbing pad 5. The insertion depth is determined by the actual situation. After the outer cylinder and the built-in heat insulation cover are installed, they are positioned. After the positioning is completed, the outlet end of the outer cylinder 2 is spun and closed and welded to the built-in heat insulation cover 4. After the welding is completed, the spoiler 1 covers the inlet end of the built-in heat insulation cover 4, and then the spoiler and the inlet end of the outer cylinder 2 are spun and closed and welded, so that the entire platform multifunctional cylinder assembly c is assembled.

[0047] The outlet end of the air inlet clam shell assembly b is welded to the air inlet end of the cylinder assembly c, the air inlet flange a is welded to the air inlet end of the air inlet clam shell assembly b, the air inlet end of the air outlet cone d is welded to the air outlet end of the cylinder assembly c, the air inlet end of the air outlet elbow e is welded to the air outlet end of the air outlet cone d, and the air outlet flange f is welded to the air outlet end of the air outlet elbow e.

[0048] Working principle: The working mode of the platform-based multifunctional purifier of the utility model is as follows: in terms of flow field, after the entire purifier is loaded on the vehicle, the exhaust gas from the engine enters the purifier from the air intake end, and part of the airflow passing through the air intake clam shell component b enters the cylinder component c through the spiral air intake hole 11 with an angle of 20°-40°, and the other part enters the cylinder component c through the counter-hole 12 and the spoiler hole 13. After the two airflows collide, the intake airflow can be dispersed to a certain extent, greatly improving the eccentricity and uniformity, and then passing through the purifier cylinder with a built-in heat insulation cover. Since the built-in heat insulation cover does not have the problem of insufficient insulation cotton coverage due to avoiding the bracket or other objects, most of the heat will not diffuse to the external area, and it has a better and more uniform insulation effect.

[0049] In terms of reliability, since the outside of the cylinder assembly does not need to be wrapped with a heat insulation cover, the cost can be reduced to a certain extent. At the same time, since there is no external heat insulation cover, in order to meet reliability, the bracket can be arranged in any shape and quantity on the surface of the cylinder, which can greatly compress the space occupied by the entire purifier assembly in the vehicle.

[0050] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A platform-based multifunctional purifier, characterized in that: It comprises a cylinder assembly (c), the air inlet end of the cylinder assembly (c) is connected to an air inlet clam shell assembly (b), the air inlet end of the air inlet clam shell assembly (b) is provided with an air inlet flange (a), the air outlet end of the cylinder assembly (c) is connected to an air outlet end cone (d) and an air outlet elbow (e) in sequence, and the air outlet end of the air outlet elbow (e) is provided with an air outlet flange (f); The cylinder assembly (c) comprises a spoiler (1) and an outer cylinder (2), the outer cylinder (2) being provided with a built-in heat insulation cover (4), and a catalyst (6) being provided inside the built-in heat insulation cover (4); The spoiler (1) covers the air inlet end of the built-in heat insulation cover (4) and is fixedly connected to the air inlet end of the outer cylinder (2); the air inlet end and the air outlet end of the outer cylinder (2) are both fixedly connected to the built-in heat insulation cover (4) with their apertures shrunk.

2. The platform-based multifunctional purifier according to claim 1, characterized in that: Heat insulation cotton (3) is filled between the outer cylinder (2) and the built-in heat insulation cover (4), and a shock-absorbing pad (5) is provided between the built-in heat insulation cover (4) and the catalyst (6).

3. The platform-based multifunctional purifier according to claim 1, characterized in that: The spoiler (1) is provided with spiral air inlet holes (11), counter-punch holes (12) and spoiler holes (13); the spiral air inlet holes (11) and counter-punch holes (12) are arranged at intervals on the outer ring of the spoiler (1); and the spoiler holes (13) are distributed on the inner ring and the outer ring of the spoiler (1).

4. The platform-based multifunctional purifier according to claim 3, characterized in that: The spiral air inlet hole (11) is punched out of the spoiler (1) and forms an angle of 20-40° with the spoiler (1); the counter-punching hole (12) and the spoiler hole (13) are through holes.

5. The platform-based multifunctional purifier according to claim 1, characterized in that: The outer cylinder (2) and the built-in heat insulation cover (4) are both made of stainless steel and have a thickness of more than 1 mm.

6. The platform-based multifunctional purifier according to claim 2, characterized in that: The two ends of the catalyst (6) are equidistant from the two ends of the shock-absorbing pad (5) and the built-in heat-insulating cover (4).

7. The platform-based multifunctional purifier according to claim 2, characterized in that: The thermal insulation cotton (3) is made of ceramic fiber cotton and has a thickness of 1-3 mm.

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