CN204041174U

CN204041174U - Box-type postprocessor

Info

Publication number: CN204041174U
Application number: CN201420349328.XU
Authority: CN
Inventors: 沈贱民; 张仁新; 陆德福; 肖胜华; 陈谢; 曾金山; 刘刚
Original assignee: Dongfeng Trucks Co ltd
Current assignee: Dongfeng Trucks Co ltd
Priority date: 2014-06-27
Filing date: 2014-06-27
Publication date: 2014-12-24
Anticipated expiration: 2024-06-27

Abstract

The utility model provides a box postprocessor, which comprises a housin, the intake pipe, the blast pipe, the aftertreatment unit, the inside baffle that sets up of casing, No. two baffles divide into the cavity in proper order with the casing, No. two cavities, No. three cavities, the both ends of aftertreatment unit respectively with the upper portion of baffle, the upper portion fixed connection of No. two baffles, the intake pipe, blast pipe parallel arrangement is in baffle No. one, the lower part of No. two baffles, and the intake pipe is connected with No. two baffles after passing through the cavity in proper order by the casing outside, No. one baffle, No. two cavities, a plurality of exhaust through-holes that set up in the intake pipe loop through No. two cavities in proper order, a plurality of intercommunicating pores that set up in the baffle, the cavity, after the aftertreatment unit, communicate with each other end of blast pipe after passing through No. two cavities in proper order, a baffle, extend to the casing outside after the cavity. The design has wide application range, saves the arrangement space of the whole vehicle and is beneficial to installation and arrangement.

Description

A kind of box preprocessor

Technical field

The utility model relates to a kind of auto parts and components, particularly relates to a kind of box preprocessor, is specifically applicable to expand Applicable scope, save arrangement space.

Background technique

Since China came into effect from 1999 " automobile-used compression-ignited, gaseous fuel spark-ignition engine and automobile exhaust pollutant discharge limit and method of measurement ", state I stage, state II stage, state III stage are experienced by, and state IV, state's V emission standard are also formulated, therefore developing the after-treatment system meeting state IV or state V emission standard becomes main flow.

Chinese patent application publication No. is CN103133088A, Shen Qing Publication day is that the patent of invention on June 5th, 2013 discloses a kind of square post-processor assembly, clapboard assembly is fixedly pressed on shell, both sides end cap is connected by air inlet and exhaust piper with internal partition assembly, reprocessing encapsulation assembly is arranged symmetrically with left clapboard and right clapboard, suction tude and outlet pipe are welded on reprocessing encapsulation assembly two ends and form clapboard assembly, the mouth of pipe Flange joint of suction tude.Although this thaumatropy efficiency is high, noise reduction capability is strong, back pressure is little, but still there is following defect:

In this invention, air inlet and exhaust piper is arranged in the two ends of preprocessor; be heterodoxy entrance and exit type preprocessor; on the one hand, due to the restriction of overall width, such preprocessor cannot install tailpipe additional to reduce noise; on the other hand; for harmful influence car, because outlet pipe needs to be arranged into front side, such preprocessor can only be parallel to vehicle frame and arrange; need the utilized length taking vehicle frame in a large number, the vehicle of space characteristics of compact layout cannot be applicable to.

Summary of the invention

The purpose of this utility model is the problem that cannot install tailpipe additional, take larger arrangement space overcoming prior art existence, provides a kind of box preprocessor that can install tailpipe additional, effectively save arrangement space.

For realizing above object, the technical solution of the utility model is as follows:

A kind of box preprocessor, comprise housing, suction tude, outlet pipe, described housing is enclosed type hollow structure, its inside is provided with a dividing plate, No. two dividing plates, post-processing units, housing is divided into a chamber, No. two chambers, No. three chambers by a described dividing plate, No. two dividing plates successively, the two ends of post-processing unit are fixedly connected with the top of a dividing plate, the top of No. two dividing plates respectively, and suction tude, outlet pipe are set in parallel in the bottom of a dividing plate, No. two dividing plates;

Described suction tude is fixedly connected with No. two dividing plates successively by the outside of housing after a chamber, a dividing plate, No. two chambers, and position suction tude being positioned at No. two chambers offers multiple exhaust hole, this exhaust hole is successively by communicating with one end of outlet pipe after multiple intercommunicating pores that No. two chambers, a dividing plate are offered, chamber, post-processing unit, No. three chambers, and the other end of outlet pipe extends to the outside of housing successively after No. two chambers, a dividing plate, a chamber.

Described suction tude, distance between outlet pipe with housing bottom are equal.

The ingress of described suction tude is provided with urea nozzle seat.

The sidepiece of a described chamber is provided with front block temperature sensor, and the sidepiece of No. two chambers is provided with rear block temperature sensor, NOx sensor seat.

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

1, in a kind of box preprocessor of the utility model suction tude by the outside of housing successively through a chamber, a dividing plate, be fixedly connected with No. two dividing plates after No. two chambers, outlet pipe is successively through No. two chambers, a dividing plate, the outside of housing is extended to after a chamber, i.e. suction port, relief opening is all arranged on same one end of preprocessor, on the one hand, this design can not only realize by install additional tailpipe change exhaust towards mode reduce noise after there will not be the problem of car load ultra-wide, and for requiring that the vehicle that outlet pipe is arranged towards sky is also suitable for, on the other hand, for harmful influence car, preprocessor with end turnover can be arranged perpendicular to vehicle frame, from relief opening externally connected exhaust pipe to front side, effectively save arrangement space.Therefore, the utility model not only Applicable scope is comparatively wide, and saves arrangement space.

2, suction tude in a kind of box preprocessor of the utility model, distance between outlet pipe with housing bottom are equal, and namely air inlet and exhaust piper is arranged on sustained height, and this is designed with and is beneficial to air inlet and exhaust piper and passes in and out by below vehicle frame, is convenient to mounting arrangements.Therefore, the utility model is conducive to mounting arrangements.

3, in a kind of box preprocessor of the utility model, the ingress of tracheae is provided with urea nozzle seat, i.e. the integrated urea nozzle seat of preprocessor, the design reduces that the urea that, vibration poor by link sealing etc. cause is revealed, crystallization risk.Therefore, the utility model decreases the risk of urea leakage, crystallization.

4, in a kind of box preprocessor of the utility model, the sidepiece of a chamber is provided with front block temperature sensor, the sidepiece of No. two chambers is provided with rear block temperature sensor, in this design, front block temperature sensor, rear block temperature sensor are arranged closer to post-processing unit, ensure that the accuracy of temperature detection.Therefore, the utility model ensure that the accuracy of temperature detection.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is that the A-A of Fig. 1 is to sectional view.

Fig. 3 is the B direction view of Fig. 1.

In figure: housing 1, dividing plate 11, intercommunicating pore 111, No. two dividing plates 12, chamber 13, No. two chambers 14, No. three chambers 15, suction tude 2, exhaust hole 21, urea nozzle seat 22, outlet pipe 3, post-processing unit 4, front block temperature sensor 5, rear block temperature sensor 6, NOx sensor seats 7.

Embodiment

Illustrate below in conjunction with accompanying drawing and with embodiment, the utility model to be described in further detail.

See Fig. 1, a kind of box preprocessor, comprise housing 1, suction tude 2, outlet pipe 3, described housing 1 is enclosed type hollow structure, its inside is provided with a dividing plate 11, No. two dividing plates 12, post-processing units 4, housing 1 is divided into a chamber 13, No. two chambers 14, No. three chambers 15 by a described dividing plate 11, No. two dividing plates 12 successively, the two ends of post-processing unit 4 are fixedly connected with the top of a dividing plate 11, the top of No. two dividing plates 12 respectively, and suction tude 2, outlet pipe 3 are set in parallel in the bottom of a dividing plate 11, No. two dividing plates 12;

Described suction tude 2 is fixedly connected with No. two dividing plates 12 successively by the outside of housing 1 after a chamber 13, dividing plate 11, No. two chambers 14, and position suction tude 2 being positioned at No. two chambers 14 offers multiple exhaust hole 21, this exhaust hole 21 is successively by communicating with one end of outlet pipe 3 after multiple intercommunicating pores 111, chamber 13 that No. two chambers 14, dividing plate 11 is offered, post-processing unit 4, No. three chambers 15, and the other end of outlet pipe 3 extends to the outside of housing 1 successively after No. two chambers 14, dividing plate 11, chamber 13.

Described suction tude 2, outlet pipe 3 are equal with the distance between bottom housing 1.

The ingress of described suction tude 2 is provided with urea nozzle seat 22.

The sidepiece that the sidepiece of a described chamber 13 is provided with front block temperature sensor 5, No. two chambers 14 is provided with rear block temperature sensor 6, NOx sensor seat 7.

Principle of the present utility model is described as follows:

Urea is sprayed in suction tude 2 by urea nozzle and mixes with the waste gas entered wherein, then post-processing unit 4 is flowed into by after multiple intercommunicating pores 111, chamber 13 that exhaust hole 21, No. two chambers 14, dividing plate 11 that suction tude 2 is offered is offered successively, corresponding purification is completed under the effect of selective reduction catalyzer, waste gas after purification enters No. three chambers 15, discharges finally by outlet pipe 3.

Embodiment 1:

See Fig. 1, a kind of box preprocessor, comprises housing 1, suction tude 2, outlet pipe 3, described housing 1 is enclosed type hollow structure, and its inside is provided with a dividing plate 11, No. two dividing plates 12, post-processing unit 4, a described dividing plate 11, housing 1 is divided into a chamber 13 by No. two dividing plates 12 successively, No. two chambers 14, No. three chambers 15, the two ends of post-processing unit 4 respectively with the top of a dividing plate 11, the top of No. two dividing plates 12 is fixedly connected with, suction tude 2, outlet pipe 3 is set in parallel in a dividing plate 11, the bottom of No. two dividing plates 12, suction tude 2, outlet pipe 3 is equal with the distance between bottom housing 1, and suction tude 2 by the outside of housing 1 successively through a chamber 13, a dividing plate 11, be fixedly connected with No. two dividing plates 12 after No. two chambers 14, position suction tude 2 being positioned at No. two chambers 14 offers multiple exhaust hole 21, and this exhaust hole 21 is successively by No. two chambers 14, multiple intercommunicating pores 111 that a dividing plate 11 is offered, a chamber 13, post-processing unit 4, communicate with one end of outlet pipe 3 after No. three chambers 15, the other end of outlet pipe 3 is successively through No. two chambers 14, a dividing plate 11, extend to the outside of housing 1 after a chamber 13, the sidepiece that the sidepiece that the ingress of suction tude 2 is provided with urea nozzle seat 22, chamber 13 is provided with front block temperature sensor 5, No. two chambers 14 is provided with rear block temperature sensor 6, NOx sensor seat 7.

Claims

1. a box preprocessor, comprise housing (1), suction tude (2), outlet pipe (3), described housing (1) is enclosed type hollow structure, its inside is provided with a dividing plate (11), No. two dividing plates (12), post-processing unit (4), a described dividing plate (11), housing (1) is divided into a chamber (13) by No. two dividing plates (12) successively, No. two chambers (14), No. three chambers (15), the two ends of post-processing unit (4) respectively with the top of a dividing plate (11), the top of No. two dividing plates (12) is fixedly connected with, suction tude (2), outlet pipe (3) is set in parallel in a dividing plate (11), the bottom of No. two dividing plates (12), it is characterized in that:

Described suction tude (2) by the outside of housing (1) successively through a chamber (13), a dividing plate (11), No. two chambers (14) are fixedly connected with No. two dividing plates (12) afterwards, and position suction tude (2) being positioned at No. two chambers (14) offers multiple exhaust hole (21), this exhaust hole (21) is successively by No. two chambers (14), multiple intercommunicating pores (111) that a dividing plate (11) is offered, a chamber (13), post-processing unit (4), No. three chambers (15) communicate with one end of outlet pipe (3) afterwards, the other end of outlet pipe (3) is successively via No. two chambers (14), a dividing plate (11), the outside of housing (1) is extended to after a chamber (13).

2. the box preprocessor of one according to claim 1, is characterized in that: the distance between described suction tude (2), outlet pipe (3) with housing (1) bottom is equal.

3. the box preprocessor of one according to claim 1 and 2, is characterized in that: the ingress of described suction tude (2) is provided with urea nozzle seat (22).

4. the box preprocessor of one according to claim 1 and 2, it is characterized in that: the sidepiece of a described chamber (13) is provided with front block temperature sensor (5), the sidepiece of No. two chambers (14) is provided with rear block temperature sensor (6), NOx sensor seat (7).