CN213144576U

CN213144576U - Novel leading exhaust system of danger article transport vechicle tail pipe

Info

Publication number: CN213144576U
Application number: CN202020493604.5U
Authority: CN
Inventors: 关键; 李海忠; 毕明昕; 刘振方; 王也; 张庆辉; 韦礼宝; 腾鹏坤; 彭罡; 张龙飞
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-05-07
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a tail pipe preposed exhaust system of a novel hazardous chemical transport vehicle, which comprises a U-shaped postprocessor assembly, a silencer assembly, an exhaust spark extinguisher, a composite corrugated pipe with a new sealing structure, an air inlet pipe, a tail pipe and a tail gas guiding device, u type aftertreatment assembly side hang on left longeron, built-in DOC, DPF, SCR reaction zone and tail gas hybrid chamber satisfy six emission standards in the country, the exhaust pipe adopts new seal structure composite bellows, can realize zero revealing, the tail pipe adopts the syllogic, lean on frame right longeron to extend forward until vehicle front end and preceding protection crossbeam parallel arrangement down, the muffler assembly, exhaust spark extinguisher and tail gas kuppe are connected gradually to the gas outlet, effectively reduce the vehicle risk of catching a fire, the utility model discloses a dangerization article transport vechicle provides a neotype exhaust system solution who satisfies six emission standards in the country.

Description

Novel leading exhaust system of danger article transport vechicle tail pipe

Technical Field

The utility model belongs to the technical field of vehicle exhaust system, concretely relates to novel leading exhaust system of danger article transport vechicle tail pipe.

Background

The exhaust system is an important component of an automobile, and the main function is to discharge exhaust gas in a cylinder into the atmosphere after the exhaust gas is treated by an after-treatment device and reaches the emission standard. With the release of the national six standards of heavy vehicles, the exhaust system of heavy vehicles is developed into the most urgent task of each large host factory, especially the requirement of hazardous chemical transport vehicles on the exhaust system is more severe, GB 20300-.

At present, the following problems mainly exist in dangerous chemical transport vehicles in the market:

1) present dangerization article transport vechicle, most arrange aftertreatment device in driver's cabin below front beam position, for satisfying six emission regulations aftertreatment volume grow in state, can't adopt the current scheme of arranging, the current mode spark arrester ground clearance of arranging in addition is too little, influences the vehicle trafficability characteristic, and customer experience is poor.

2) At present, a host factory attempts to develop a side-hung type postprocessor to develop an exhaust system for transporting hazardous chemicals, but the square postprocessor is huge in size, large in arrangement difficulty and too long in exhaust pipeline, so that the upper installation arrangement of oil tanks and the like is seriously influenced, and great potential safety hazards exist.

Therefore, a new exhaust system solution meeting the national six-emission standard and suitable for dangerous chemical transport vehicles is urgently needed.

Disclosure of Invention

An object of the utility model is to provide a novel leading exhaust system of danger article transport vechicle tail pipe to overcome among the prior art aftertreatment and arrange the degree of difficulty greatly, pipeline design shortcoming such as unreasonable, the utility model discloses a U type aftertreatment ware assembly, tail pipe adopt the syllogic, lean on frame right longeron to extend forward until vehicle front end and preceding lower protection crossbeam parallel arrangement, increase the liftoff clearance, the flexible coupling adopts new seal structure composite bellow, and the gas outlet connects gradually muffler assembly, exhaust spark extinguisher and tail gas kuppe, effectively reduces the vehicle risk of getting on fire.

The utility model aims at realizing through the following technical scheme:

a tail pipe preposed exhaust system of a novel hazardous chemical transport vehicle comprises a U-shaped postprocessor assembly, a silencer assembly, an exhaust spark extinguisher, a composite corrugated pipe with a new sealing structure, an air inlet pipe, a tail pipe and a tail gas guide sleeve;

the U-shaped postprocessor assembly is hung on the left longitudinal beam in a side mode, the air inlet pipe is sequentially connected with the composite corrugated pipe with the new sealing structure and communicated with an air inlet of the U-shaped postprocessor assembly, an exhaust outlet of the U-shaped postprocessor assembly is connected with the expansion joint through an annular clamp, the tail pipe is in a three-section mode and extends forwards until the front end of the vehicle and the front lower protective cross beam are arranged in parallel by means of the right longitudinal beam of the frame, the ground clearance of an exhaust pipeline is improved, the vehicle trafficability is enhanced, and the air outlet is sequentially connected with the silencer assembly, the exhaust spark extinguisher and the.

Furthermore, the U-shaped postprocessor assembly is internally provided with a DOC, a DPF, an SCR reaction zone and a tail gas mixing cavity, and the tail gas passes through the postprocessor and undergoes a series of oxidation-reduction reactions, so that the content of pollutants such as NOx, PM and the like in the tail gas is reduced, and the emission standard of the national six standards is reached.

Further, the bellows adopts novel seal structure, and sub-sealing mouth seat, female sealing mouth seat are welded respectively at its both ends, also welds the cooperation of primary and secondary mouth seat respectively with its intake pipe of being connected simultaneously and uses, the primary and secondary sealing mouth seat between the installation gasket and use sealed clamp fastening, can realize zero and reveal.

Furthermore, the tail pipe is in a three-section type, the tail pipe extends forwards by means of the right longitudinal beam of the frame, the tail pipes are connected through flanges, the first tail pipe is connected with the expansion joint and fixed on the right longitudinal beam of the frame through a support, the third tail pipe is arranged in parallel with the front lower protective cross beam, and the tail pipes are fixed on the front lower protective cross beam through two groups of tail pipe supports.

Further, a tail gas guide sleeve is installed at the outlet of the exhaust spark extinguisher and is fastened through a clamping band.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a novel leading exhaust system of danger article transport vechicle tail pipe adopts a novel U type aftertreatment ware assembly, has solved danger article transport vechicle exhaust system under six emission standards in state and has arranged difficult scheduling problem, can effectually shorten tail pipe length, and the normal pipeline moves towards, has increased the blast pipe leakproofness simultaneously, reduces danger article transport vechicle risk of catching fire, and tail pipe and vehicle protect parallel arrangement down in the front have increased the liftoff clearance, and the vehicle trafficability characteristic obtains effectively promoting.

Drawings

Fig. 1-2 are installation layout diagrams of a tail pipe preposed exhaust system of a novel hazardous chemical transport vehicle according to the present invention;

FIG. 3 is a schematic view of a tail pipe exhaust outlet of a tail pipe preposed exhaust system of a novel hazardous chemical transport vehicle according to the utility model;

fig. 4 is a schematic view of a pipeline sealing structure of a tail pipe preposed exhaust system of a novel hazardous chemical transport vehicle according to the utility model;

FIG. 5 is a U-shaped post-processor assembly schematic diagram of a tail pipe preposed exhaust system of a novel hazardous chemical substance transport vehicle.

In the figure: 1. the novel exhaust gas purifying device comprises an air inlet pipe I2, an air inlet pipe support 3, a sealing hoop 4, a new sealing structure composite corrugated pipe 5, an air inlet pipe II 6, a U-shaped aftertreatment unit assembly 7, an expansion joint 8, a tail pipe support I9, a tail pipe I10, a tail pipe support II 11, a tail pipe II 12, a tail pipe support III 13, a tail pipe III 14, a front lower protective cross beam 15, a silencer assembly 16, an exhaust spark arrester 17, an exhaust gas guide cover 18, a strap 19, a right longitudinal beam 20, a left longitudinal beam 41, a secondary sealing opening seat 42, a primary sealing opening seat 43, a gasket 61.DOC 62, a DPF 63 and an exhaust gas mixing cavity 64 and SCR.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, the utility model discloses leading exhaust system of danger article transport vechicle tail pipe, including U type aftertreatment assembly 6, muffler assembly 15, exhaust spark extinguisher 16, new seal structure composite corrugated pipe 4, intake pipe I1, intake pipe II 5, tail pipe I9, tail pipe II 11, tail pipe III 13, tail gas kuppe 17.

The U-shaped post-processor assembly 6 is hung on a left longitudinal beam, an air inlet pipe I1, a new sealing structure composite corrugated pipe 4 and an air inlet pipe II 5 are sequentially connected and communicated with an air inlet of the U-shaped post-processor assembly 6, the air inlet pipe I1 and an air inlet pipe support 2 are fixed on an engine body through U-shaped bolts, an expansion joint 7 is connected with an air outlet of the U-shaped post-processor assembly 6, tail gas is discharged from an engine exhaust main pipe and enters the U-shaped post-processor assembly 6 through the front section of the air inlet pipe, the tail gas is processed through the U-shaped post-processor assembly and is discharged into a tail pipe from the outlet of the post-processor assembly, the tail pipe is in a three-section type, the tail pipe extends forwards until the front end of a vehicle is parallel to a front lower protective cross beam 14 by a frame right longitudinal beam 19, and.

U type aftertreatment ware assembly 6 built-in DOC61, DPF62, SCR64 reaction zone and tail gas hybrid 63, satisfy six discharge standards of state, tail gas gets into the aftertreatment ware and passes through particle oxidation catalyst (DOC) earlier, converts NO into NO₂Oxidation of C to CO after passing through a particulate Filter (DPF)₂PM and PN values are reduced, and finally, the content of pollutants such as NO compounds is reduced through a catalytic reduction postprocessor (SCR), so that the national emission requirement is met.

The tail pipe adopts the syllogic, tail pipe I9 leans on the frame right side longeron to extend forward, adopts flange joint with tail pipe II 11, wherein tail pipe I9 head and the tail adopts tail pipe support I8, tail pipe support II 10 respectively fixed frame left and right sides longeron, tail pipe III 13 and preceding lower protection crossbeam 14 parallel arrangement, adopts two sets of tail pipe supports III 12 to fix tail pipe III 13 on preceding lower protection crossbeam 14, and this arrangement form is favorable to improving exhaust pipe ground clearance, strengthens the vehicle trafficability characteristic.

As shown in figure 4, exhaust spark arrester 16 exit installation tail gas kuppe 17 to fasten through strap 18, exhaust spark arrester 16 exit is located vehicle pedal board below towards the vehicle left side, makes things convenient for the driver to operate, and installation tail gas kuppe 17 can change the exhaust emission angle simultaneously, reduces the influence of exhaust emission to vehicle driving, further reduces the danger of dangerous chemicals transport vechicle on fire.

As shown in fig. 4, the exhaust pipe sealing structure, the new sealing structure composite corrugated pipe 4 adopts a new sealing structure, the two ends of the new sealing structure composite corrugated pipe are respectively welded with a sub sealing opening seat 41 and a main sealing opening seat 42, the air inlet pipe I1 and the air inlet pipe II 5 connected with the new sealing structure composite corrugated pipe are respectively welded with a sub sealing opening seat and a main sealing opening seat for cooperation, a sealing sheet 43 is arranged between the sub sealing opening seat 41 and the main sealing opening seat 42 and is connected by a sealing clamp 3, and zero leakage is basically realized.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a leading exhaust system of novel danger chemicals transport vechicle tail pipe which characterized in that: the device comprises a U-shaped postprocessor assembly (6), a silencer assembly (15), an exhaust spark extinguisher (16), a new sealing structure composite corrugated pipe (4), an air inlet pipe I (1), an air inlet pipe II (5), a tail pipe I (9), a tail pipe II (11), a tail pipe III (13) and a tail gas guide sleeve (17);

u type aftertreatment ware assembly (6) side is hung on left longeron (20), intake pipe I (1), new seal structure composite corrugated pipe (4), intake pipe II (5) link to each other in proper order and U type aftertreatment ware assembly (6) air inlet intercommunication, telescopic joint (7) link to each other with U type aftertreatment ware assembly (6) gas vent, the tail pipe adopts the syllogic, lean on frame right longeron (19) to extend forward until vehicle front end and preceding lower protection crossbeam (14) parallel arrangement, the gas outlet connects gradually muffler assembly (15), exhaust spark extinguisher (16) and tail gas kuppe (17).

2. The tail pipe preposed exhaust system of the novel hazardous chemical substance transport vehicle according to claim 1, characterized in that: the U-shaped postprocessor assembly (6) is internally provided with a DOC (61), a DPF (62), an SCR (64) reaction zone and an exhaust mixing cavity (63).

3. The tail pipe preposed exhaust system of the novel hazardous chemical substance transport vehicle according to claim 1, characterized in that: the novel sealing structure composite corrugated pipe (4) adopts a novel sealing structure, the two ends of the novel sealing structure composite corrugated pipe are respectively welded with a sub sealing opening seat (41) and a main sealing opening seat (42), and meanwhile, an air inlet pipe I (1) and an air inlet pipe II (5) which are connected with the novel sealing structure composite corrugated pipe are also respectively welded with a sub sealing opening seat for matching use, and a gasket (43) is arranged between the sub sealing opening seat (41) and the main sealing opening seat (42) and is connected by a sealing hoop (3).

4. The tail pipe preposed exhaust system of the novel hazardous chemical substance transport vehicle according to claim 1, characterized in that: the tail pipe adopts the syllogic, and tail pipe I (9) lean on the frame right side longeron to extend forward, adopts flange joint with tail pipe II (11), and tail pipe III (13) and preceding lower protection crossbeam parallel arrangement adopt two sets of tail pipe supports III (12) to fix tail pipe III (13) on preceding lower protection crossbeam (14).

5. The tail pipe preposed exhaust system of the novel hazardous chemical substance transport vehicle according to claim 4, characterized in that: and a tail gas guide sleeve (17) is arranged at the outlet of the exhaust spark extinguisher (16) and is fastened through a strap (18).