CN213684270U

CN213684270U - Wall-flow type particle trap flexible connecting device

Info

Publication number: CN213684270U
Application number: CN202022656781.3U
Authority: CN
Inventors: 彭红; 李仁鹏; 姚强
Original assignee: Wuxi Yiju Environmental Protection Technology Development Co ltd
Current assignee: Wuxi Yiju Environmental Protection Technology Development Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-13
Anticipated expiration: 2030-11-17

Abstract

The utility model relates to a wall flow formula particle trap flexible connection device, including carrier portion, connecting portion, transition portion, flange I and flange II. The carrier part is arranged in a cylindrical shape, the inner wall and the outer wall of the connecting part are arranged in a corrugated shape, the transition part is arranged in a radial shape, the connecting part is fixedly connected with one end of the transition part, and one end of the carrier part is arranged opposite to the other end of the transition part and matched with the other end of the transition part. The inside and outside wall of connecting portion sets up to the corrugate, and DPF passes through bellows and engine flexonics, effectively cuts off the vibrations of engine, avoids causing the influence and then reduce DPF's life to the ceramic carrier in the DPF. The problem of deformation caused by the fact that the DPF is rigidly connected with an engine and generates vibration to affect a ceramic carrier is solved through the specific structure, and meanwhile, a welded connection mode is adopted.

Description

Wall-flow type particle trap flexible connecting device

Technical Field

The utility model relates to a barrel field of connecting especially relates to a wall flow formula particle trap flexible connection device.

Background

DPF (particulate trap) is the most effective technology for reducing diesel exhaust Particulate Matter (PM). The DPF is installed in an exhaust system of a diesel vehicle and reduces Particulate Matter (PM) in exhaust gas by filtering. The DPF is capable of effectively purifying 70% to 90% of the particulates in the exhaust gas, and is one of the most effective and direct methods for purifying diesel particulate matter.

The internal structure of the DPF is a ceramic structure, a layer of precious metal structure is added on the surface of the DPF, so that the method for adsorbing particles can be met, the ceramic structure of the DPF is of a wall-through type, namely, gas passing through the DPF is much like an air filter element, and the passing gas has the same reason of passing through filter paper to filter Particulate Matters (PM) in exhaust gas.

The wall flow type particle trap (DPF) usually adopts rigid connection at present, so the requirement on welding is higher, and simultaneously the vibration of an engine is directly transmitted to an equipment body to drive the vibration of a ceramic carrier, so that the service life of the ceramic carrier is damaged, and the stability of the DPF is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wall flow formula particle trap flexible connection device.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a wall flow formula particle trap flexible connection device, it includes:

a carrier portion provided in a cylindrical shape;

the inner wall and the outer wall of the connecting part are arranged in a corrugated shape;

the transition part is arranged in a radial shape, the connecting part is fixedly connected with one end of the transition part, and one end of the carrier part is opposite to and matched with the other end of the transition part.

Further, the device also comprises a flange I, and the flange I is connected with one end of the carrier part.

Further, it still includes flange II, flange II with keep away from on the transition portion the one end of connecting portion is connected, flange II with flange I sets up relatively and cooperatees.

Further, the flange structure further comprises a sealing gasket, and the sealing gasket is arranged between the flange I and the flange II.

Further, it still includes the clamp, the clamp sets up to cyclic annularly, the clamp sets up flange I with the periphery of flange II.

Further, be provided with sunken on the inner wall of clamp, sunken with flange I with the protruding cooperation that the flange II formed.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses an inside and outside wall of connecting portion sets up to the corrugate, and DPF passes through bellows and engine flexible connection, effectively cuts off the vibrations of engine, avoids causing the influence and then reduce DPF's life to the ceramic carrier in the DPF.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic view of the overall structure of the flexible connection device of the wall-flow type particle trap of the present invention;

FIG. 2 is a schematic cross-sectional view of the connection of FIG. 1;

fig. 3 is a schematic view at a in fig. 1.

Wherein the reference numerals are as follows:

1. a carrier part; 2. a connecting portion; 3. a transition section; 4. a flange I; 5. a flange II; 6. a gasket; 7. clamping a hoop; 71. and (4) sinking.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in FIG. 1, the flexible connection device of the wall-flow type particle trap comprises a carrier part 1, a connection part 2, a transition part 3, a flange I4, a flange II 5, a sealing gasket 6, a clamping hoop 7 and a recess 71.

The carrier part 1 is set to be cylindrical, and the thickness of the cylinder can be set according to actual environmental requirements. The flange I4 is sleeved at one end of the cylindrical carrier part 1. The flange I4 is fixedly connected with the carrier part 1 through welding and glue connection, and the sealing performance of connection is guaranteed.

As shown in fig. 1 and 2, the connecting portion 2 is disposed on the opposite side of the carrier portion 1, the connecting portion 2 is in a bellows shape, the inner and outer walls of the connecting portion 2 are both in a bellows shape, and the bellows-shaped flexible connecting pipe can effectively isolate the vibration of the engine. Because carrier portion 1 and connecting portion 2 all are cylindricly and two diameters are different, transition portion 3 sets up between carrier portion 1 and connecting portion 2, and the one end that is close to carrier portion 1 on transition portion 3 and the connecting portion 2 is connected, adopts welding, gluey connection to link firmly mutually usually, and the leakproofness of guaranteeing to connect can. In other embodiments, the inner and outer diameters of the connecting portion 2, the transition portion 3 and the carrier portion 1 may be kept the same according to actual circumstances.

The periphery of keeping away from the one end of connecting portion 2 on transition portion 3 is provided with flange II 5, and the one end of keeping away from connecting portion 2 on transition portion 3 is established to II 5 covers of flange, adopts welding, gluey connection to link firmly mutually usually, and the leakproofness of guaranteeing to connect can.

As shown in fig. 3, the packing 6 is provided between the flange i 4 and the flange ii 5, the packing 6 is provided in a ring shape, and the inner diameter of the ring-shaped packing 6 is larger than the inner diameter of the carrier part 1 while the outer diameter is smaller than the outer diameters of the flange i 4 and the flange ii 5. Flange I4 and flange II 5 cooperation are in the same place and be provided with sealed pad 6 between the two, and clamp 7 cover is established in flange I4 and flange II 5's periphery, closely fixes flange I4 and flange II 5. Sunken 71 has been seted up on the inner wall of clamp 7, sunken 71 with by flange I4 and the protruding cooperation that II 5 formed of flange compress tightly, the leakproofness of connecting between both is guaranteed in the setting of sealed pad 6 between flange I4 and flange II 5 simultaneously.

The carrier part 1 is provided with a DPF, and the inside of the DPF is of a wall-through ceramic structure. The connecting part 2 is connected with a flexible corrugated hose, so that the vibration of an engine is effectively cut off, and the damage to a ceramic structure in the carrier 1 is avoided. Flange I4 and flange II 5 set up on carrier portion 1 and transition portion 3, and two flanges cooperate and cross the fastening through clamp 7, avoid carrier portion 1 and transition portion 3 to weld mutually and lead to warping.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A wall-flow particulate trap flexible coupling device, comprising:

a carrier part (1), wherein the carrier part (1) is provided in a cylindrical shape;

the connecting part (2), the inner and outer walls of the connecting part (2) are corrugated;

transition portion (3), transition portion (3) set up to radially, connecting portion (2) with the one end of transition portion (3) links firmly mutually, the one end of carrier portion (1) with the other end of transition portion (3) sets up relatively and cooperatees.

2. A wall-flow particulate trap flexible connection means according to claim 1, further comprising a flange i (4), wherein the flange i (4) is connected to one end of the carrier portion (1).

3. A wall-flow particle trap flexible connecting device according to claim 2, further comprising a flange ii (5), wherein the flange ii (5) is connected to an end of the transition portion (3) away from the connecting portion (2), and the flange ii (5) is opposite to and engaged with the flange i (4).

4. A wall-flow particulate trap flexible connection means according to claim 3, further comprising a gasket (6), wherein the gasket (6) is disposed between the flange i (4) and the flange ii (5).

5. A wall-flow particle trap flexible connection means according to claim 4, further comprising a clip (7), wherein the clip (7) is provided in a ring shape, and the clip (7) is provided at the outer periphery of the flange I (4) and the flange II (5).

6. A wall-flow particle trap flexible connecting device according to claim 5, wherein the inner wall of the clamp (7) is provided with a recess (71), and the recess (71) is matched with a protrusion formed by the flange I (4) and the flange II (5).