CN208330511U

CN208330511U - exhaust pipe

Info

Publication number: CN208330511U
Application number: CN201820931658.8U
Authority: CN
Inventors: 高强; 陈传杰
Original assignee: Gns Auto Parts Co Ltd
Current assignee: Gns Auto Parts Co Ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2019-01-04
Anticipated expiration: 2028-06-15

Abstract

The utility model provides exhaust pipe, belongs to auto-parts technical field comprising: socket, left and right ends are respectively equipped with air inlet, gas outlet, are equipped with expansion chamber between air inlet and air outlet, and expansion chamber both ends are hemispherical, cylindrical in the middle part of expansion chamber；Flow deflector is fixedly arranged on expansion chamber left end and covers air inlet, and circular arc protrusion, the flow deflector are equipped with equally distributed deflector hole to flow deflector to the right；Filter screen is close to flow deflector right lateral surface and covers deflector hole；Right baffle-plate is fixedly arranged in the middle part of expansion chamber and close to air inlet；Right shell body is fixedly arranged in the middle part of expansion chamber and spaced apart with right baffle-plate；The right baffle-plate, right shell body and expansion chamber are enclosed sealing chamber, and sealing chamber accommodates catalyst；Kong Guan, both ends extend through right baffle-plate, right shell body and are connected with right baffle-plate, right shell body, and hole tube wall is equipped with equally distributed stomata.The advantages of this exhaust pipe has treatment facilities reasonable, good muffling effect.

Description

Exhaust pipe

Technical field

The utility model belongs to auto-parts technical field, is related to exhaust pipe.

Background technique

Exhaust pipe is the component that automobile is used for emission, generally has the function of noise reduction, damping and purification, such as one Application No. is 201520011154.0 Chinese patents, and it discloses automobile exhaust gas sound-deadening energy devices, including intake interface, One silencing apparatus, the first disk, heating installation, the second disk, the second silencing apparatus and outlet interface, intake interface and first disappear Acoustic device connection, the first disk are arranged inside the first silencing apparatus, and the first silencing apparatus is connected with heating installation, heating installation It is connected with the second silencing apparatus, the second disk is arranged inside the second silencing apparatus, and the second silencing apparatus is connected with outlet interface.

The treatment facilities of existing automobile exhaust pipe is not reasonable, and catalysis is not enough, and the final drain position of tail gas is still Have biggish noise, there are certain rooms for improvement, it is therefore desirable to design a kind for the treatment of facilities rationally, the exhaust of good muffling effect Pipe.

Summary of the invention

The purpose of this utility model is the presence of the above problem in view of the prior art, propose a kind for the treatment of facilities rationally, The exhaust pipe of good muffling effect.

The purpose of this utility model can be realized by the following technical scheme: exhaust pipe, comprising:

Socket, left and right ends are respectively equipped with air inlet, gas outlet, and expansion chamber is equipped between air inlet and air outlet, swollen Swollen chamber both ends are hemispherical, cylindrical in the middle part of expansion chamber；

Flow deflector is fixedly arranged on expansion chamber left end and covers air inlet, and circular arc protrusion, the flow deflector are set flow deflector to the right There is equally distributed deflector hole；

Filter screen is close to flow deflector right lateral surface and covers deflector hole；

Right baffle-plate is fixedly arranged in the middle part of expansion chamber and close to air inlet；

Right shell body is fixedly arranged in the middle part of expansion chamber and spaced apart with right baffle-plate；

The right baffle-plate, right shell body and expansion chamber are enclosed sealing chamber, and sealing chamber accommodates catalyst；

Kong Guan, both ends extend through right baffle-plate, right shell body and are connected with right baffle-plate, right shell body, and hole tube wall is equipped with equal The stomata of even distribution.

The hole pipe includes the communicating pipe at left and right sides of intercommunicating pore pipe, Kong Guan as a further improvement of the utility model, Left side include transverse tube, vertical tube, be connected to transverse tube and vertical tube bend pipe, transverse tube, bend pipe quantity be two and two transverse tubes, two Bend pipe distinguishes setting symmetrical above and below, and transverse tube is fixedly arranged on right baffle-plate and stretches out to the left, and vertical tube is set in sealing chamber and in the middle part of it and even Siphunculus connection, hole pipe right side are symmetrical arranged on the left of the pipe of hole.

The catalyst is close to expansion cavity wall and is arranged in a ring as a further improvement of the utility model, is catalyzed It is close to right baffle-plate, right shell body in agent both ends.

The gas outlet is embedded with tubaeform air guiding sleeve as a further improvement of the utility model,.

Air detecting sensors are installed on the air guiding sleeve inner wall as a further improvement of the utility model,.

The quantity of the air detecting sensors is two and symmetrical above and below sets as a further improvement of the utility model, It sets.

Based on the above-mentioned technical proposal, the utility model embodiment at least can produce following technical effect:

1. by setting flow deflector, vehicle exhaust uniformly sprays along the setting direction of deflector hole and passes through filter screen, from And vehicle exhaust is enable uniformly to spread simultaneously primary filtration, then tail gas through hole pipe exists evenly into sealing chamber, noise Reflection, interference occur for sealing chamber, to reduce noise, since tail gas has carried out primary filtration and closing room temperature is higher, from And keeping the catalytic efficiency of catalyst higher, clean-up effect is more preferable.

2. being managed by setting symmetrical structure hole, keeps the interior a part of amplitude of formation of sealing chamber equal, be displaced opposite sound wave, it should Acoustic wave segment is interfered and is offset, and further reduced noise.

3. keeping the contact area of tail gas and catalyst bigger, clean-up effect is more preferable by the catalyst being circular layout.

4. improving the exclusion efficiency of air after purification by being embedded in tubaeform air guiding sleeve.

Detailed description of the invention

Fig. 1 is the cross-sectional view of one preferred embodiment of the utility model.

In figure, 1, socket；11, air inlet；12, gas outlet；13, expansion chamber；2, deflector；21, deflector hole；3, it filters Net；4, right baffle-plate；5, right shell body；6, sealing chamber；7, catalyst；8, Kong Guan；81, stomata；82, communicating pipe；83, transverse tube；84, it erects Pipe；85, bend pipe；9, air guiding sleeve；91, air detecting sensors.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Figure 1, this exhaust pipe, comprising:

Socket 1, left and right ends are respectively equipped with air inlet 11, gas outlet 12, are equipped between air inlet 11 and gas outlet 12 Expansion chamber 13,13 both ends of expansion chamber are hemispherical, and 13 middle part of expansion chamber is cylindrical；

Flow deflector 2 is fixedly arranged on 13 left end of expansion chamber and covers air inlet 11, and circular arc is raised to the right for flow deflector 2, described to lead Flow 2 is equipped with equally distributed deflector hole 21；

Filter screen 3 is close to 2 right lateral surface of flow deflector and covers deflector hole 21；

Right baffle-plate 4 is fixedly arranged on 13 middle part of expansion chamber and close to air inlet 11；

Right shell body 5 is fixedly arranged in the middle part of expansion chamber 13 and spaced apart with right baffle-plate 4；

The right baffle-plate 4, right shell body 5 and expansion chamber 13 are enclosed sealing chamber 6, and sealing chamber 6 accommodates catalyst 7；

Hole pipe 8, both ends extend through right baffle-plate 4, right shell body 5 and are connected with right baffle-plate 4, right shell body 5, on 8 wall of hole pipe Equipped with equally distributed stomata 81.

Vehicle exhaust uniformly spreads along the circular arc bulge-structure of flow deflector 2 after the entrance of air inlet 11 and passes through filter screen 3, then tail gas enters sealing chamber 6 from one end of hole pipe 8, and uniformly diffuses to sealing chamber 6 along stomata 81, and noise is in sealing chamber 6 occur reflection, interference, to reduce noise, in addition accommodate catalyst 7, the tail gas and catalyst 7 of diffusion in closed 6 It is discharged from the other end of hole pipe 8 after reacting, is discharged outside to finally along gas outlet 12 again.

Fall large particulate matter by 3 primary filtration of filter screen, contacts catalyst 7 with tail gas more abundant, catalysis effect Rate is higher, and whole clean-up effect is more preferable；The hemispherical dome structure of 13 one end of expansion chamber and the circular arc bulge-structure of flow deflector 2 are opposite It answers, keeps the diffusion effect of tail gas more preferable；The structure of sealing chamber 6 concentrates tail gas largely, so that temperature is improved, catalyst 7 Catalytic efficiency is higher, further increases clean-up effect.

The hole pipe 8 includes the communicating pipe 82 of the left and right sides of intercommunicating pore pipe 8, include on the left of hole pipe 8 transverse tube 83, vertical tube 84, Be connected to the bend pipe 85 of transverse tube and vertical tube, transverse tube 83, bend pipe 84 quantity be two and two transverse tubes, 83, two bend pipes 85 are distinguished Setting symmetrical above and below, transverse tube 83 are fixedly arranged on right baffle-plate 4 and stretch out to the left, vertical tube 84 be set to sealing chamber 6 in and its middle part be connected to Pipe 82 is connected to, and pipe 8 right side in hole is symmetrical arranged on the left of hole pipe 8.

The hole pipe 8 of symmetrical structure keeps the interior a part of amplitude of formation of sealing chamber 6 equal, is displaced opposite sound wave, the part sound Wave is interfered and is offset, and further reduced noise.

The catalyst 7 is close to 6 inner wall of expansion chamber and is arranged in a ring, and right baffle-plate 4, right shell body are close in 7 both ends of catalyst 5。

By the catalyst 7 that is circular layout, keep the contact area of tail gas and catalyst 7 bigger, clean-up effect is more preferable, catalyst Right baffle-plate 4, right shell body 5 are close in 7 both ends, and catalyst 7 is made to fix relatively reliable.

The gas outlet 12 is embedded with tubaeform air guiding sleeve 9, so that tail gas be guided quickly outwardly to spread, improves tail gas Expulsion efficiency, it is preferred that air guiding sleeve 9 is detachably connected with socket 1, be convenient for deashing.

Air detecting sensors 91 are installed, air detecting sensors can the row of monitoring at any time on 9 inner wall of air guiding sleeve Extraneous exhaust gas component out, guarantee reach environmental protection standard.

The quantity of the air detecting sensors 9 is two and setting symmetrical above and below, so that the data of two sides up and down are acquired, Keep testing result more accurate.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims

1. exhaust pipe characterized by comprising

Socket, left and right ends are respectively equipped with air inlet, gas outlet, are equipped with expansion chamber, expansion chamber between air inlet and air outlet Both ends are hemispherical, cylindrical in the middle part of expansion chamber；

Flow deflector is fixedly arranged on expansion chamber left end and covers air inlet, and circular arc protrusion, the flow deflector are equipped with equal flow deflector to the right The deflector hole of even distribution；

Kong Guan, both ends extend through right baffle-plate, right shell body and are connected with right baffle-plate, right shell body, and hole tube wall, which is equipped with, uniformly to be divided The stomata of cloth.

2. exhaust pipe according to claim 1, it is characterised in that: the hole pipe includes the connection at left and right sides of intercommunicating pore pipe Pipe, includes transverse tube, vertical tube, the bend pipe for being connected to transverse tube and vertical tube on the left of the pipe of hole, transverse tube, bend pipe quantity be two and two cross Pipe, two bend pipes distinguish settings symmetrical above and below, and transverse tube is fixedly arranged on right baffle-plate and stretches out to the left, and vertical tube is set in sealing chamber and wherein Portion is connected to communicating pipe, is symmetrical arranged on the right side of the pipe of hole on the left of the pipe of hole.

3. exhaust pipe according to claim 1, it is characterised in that: the catalyst is close to expansion cavity wall and in a ring cloth It sets, right baffle-plate, right shell body are close in catalyst both ends.

4. exhaust pipe according to claim 1, it is characterised in that: the gas outlet is embedded with tubaeform air guiding sleeve.

5. exhaust pipe according to claim 4, it is characterised in that: be equipped with air detection sensing on the air guiding sleeve inner wall Device.

6. exhaust pipe according to claim 5, it is characterised in that: the quantity of the air detecting sensors be two and on It is lower to be symmetrical arranged.