CN213598051U - Post-processor tail dewatering structure - Google Patents
Post-processor tail dewatering structure Download PDFInfo
- Publication number
- CN213598051U CN213598051U CN202022397272.3U CN202022397272U CN213598051U CN 213598051 U CN213598051 U CN 213598051U CN 202022397272 U CN202022397272 U CN 202022397272U CN 213598051 U CN213598051 U CN 213598051U
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- China
- Prior art keywords
- carrier
- aft
- dewatering structure
- partition plate
- aftertreatment ware
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000005192 partition Methods 0.000 claims abstract description 31
- 239000000523 sample Substances 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 11
- 238000005538 encapsulation Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 239000003054 catalyst Substances 0.000 abstract description 6
- 238000006555 catalytic reaction Methods 0.000 abstract description 5
- 230000009545 invasion Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 231100000572 poisoning Toxicity 0.000 abstract description 5
- 230000000607 poisoning effect Effects 0.000 abstract description 5
- 239000011247 coating layer Substances 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model discloses a tail dewatering structure of a post-processor, wherein a cylinder body, a gas outlet end cone and a gas outlet pipe are connected in sequence, a carrier is encapsulated in the cylinder body, a baffle is fixed in the gas outlet end cone, the baffle is positioned at the rear of the carrier and is away from the carrier by a certain distance, and a gas outlet is arranged on the baffle; a drain valve is arranged at the lower side of the air outlet end cone and behind the partition plate. The utility model discloses a baffle can stop the moisture from blast pipe water conservancy diversion or invasion in the cavity between baffle and the end awl of giving vent to anger, prevents that moisture water conservancy diversion aftertreatment ware is inside and invade the carrier, avoids moisture to arouse the catalyst poisoning, has also avoided moisture to stained, the corruption on carrier and metal coating layer surface, guarantees that the catalytic reaction of carrier is even, guarantees the conversion efficiency of aftertreatment ware, and then has guaranteed whole exhaust system's performance.
Description
Technical Field
The utility model belongs to the technical field of engine aftertreatment device's dewatering technique and specifically relates to a post processor afterbody dewatering structure.
Background
The post processor belongs to an engine exhaust system and is used for treating exhaust gas generated by an engine and then discharging the exhaust gas into the air so as to reduce the influence of automobile exhaust on air pollution. The front end of the post processor is connected with an engine through a pipeline, and the tail end of the post processor is communicated with the atmospheric environment through an exhaust pipe; under the environment of rainy days, particularly under the condition of rainstorm, moisture in the atmosphere possibly flows back from the exhaust pipe to enter the interior of the post processor, so that water poisoning of the catalyst is caused, the catalytic reaction of the carrier is uneven, and the conversion efficiency of the catalyst is reduced; the ingressing moisture can also foul and corrode the surfaces of the carrier and metal coatings, affecting the performance of the aftertreatment device, reducing the conversion efficiency of the aftertreatment device, and thus reducing the performance of the overall exhaust system.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects that moisture can possibly invade the interior of the post-processor and the conversion efficiency of the post-processor is reduced and the like of the existing post-processor in a rainwater environment, and provides a post-processor tail dewatering structure with a reasonable structure, so that the moisture is prevented from invading the interior of the post-processor, and the conversion efficiency of the post-processor is ensured.
The utility model discloses the technical scheme who adopts as follows:
a post-processor tail dewatering structure comprises a cylinder body, an air outlet end cone and an exhaust pipe which are sequentially connected, wherein a carrier is sealed in the cylinder body, a partition plate is fixed in the air outlet end cone and is positioned behind the carrier and is away from the carrier by a certain distance, and an exhaust port is formed in the partition plate; a drain valve is arranged at the lower side of the air outlet end cone and behind the partition plate.
The utility model discloses a baffle can stop the moisture from blast pipe water conservancy diversion or invasion in the cavity between baffle and the end awl of giving vent to anger, prevents that moisture water conservancy diversion aftertreatment ware is inside and invade the carrier, avoids moisture to arouse the catalyst poisoning, has also avoided moisture to stained, the corruption on carrier and metal coating layer surface, guarantees that the catalytic reaction of carrier is even, guarantees the conversion efficiency of aftertreatment ware, and then has guaranteed whole exhaust system's performance.
As a further improvement of the above technical solution:
the lower side arc of the exhaust port is higher than the lower side arc of the exhaust pipe by a certain height.
The maximum height of the arc at the lower side of the exhaust port higher than that of the arc at the lower side of the exhaust pipe is smaller than the radius of the exhaust pipe.
The utility model discloses a downside circular arc of gas vent exceeds the certain height of downside circular arc of blast pipe, and the medial part of manger plate face shelters from a part mouth of pipe area of blast pipe downside promptly, when guaranteeing to satisfy the exhaust pressure, the manger plate face can directly block from the moisture that the blast pipe got into, and the manger plate effect is better, more thorough.
The baffle plate is in a conical disc shape with asymmetric upper and lower parts, the small-diameter end part of the baffle plate is upwardly deviated for a certain distance, and the center of the small-diameter end is provided with an exhaust port; the exhaust port and the central shaft of the exhaust pipe are not coaxial and have a certain height difference h.
The height difference h is smaller than the radius of the exhaust pipe.
The upside of the end cone of giving vent to anger is equipped with a plurality of sensor probe, has seted up the sensor on the baffle, is located a plurality of sensor probe and gets the gas passageway directly after.
The air taking channel is a plurality of through holes formed in the conical surface on the partition plate and positioned on the upper side of the air exhaust port; or the air taking channel is a fan-shaped opening which is arranged on the clapboard and positioned at the upper side of the air outlet.
On the partition board, the hole areas or openings of the through holes are bilaterally symmetrical along a plumb line.
The central angle alpha of the opening area or the opening taking the center of the exhaust port as the center point is more than or equal to 100 degrees and less than or equal to 175 degrees.
The utility model discloses a trompil region or opening when guaranteeing the sufficient scope of getting gas of sensor probe, still guarantee that the manger plate face of baffle has as big as possible the area of sheltering from, play effectual manger plate effect to the moisture of invasion.
The joints of the cylinder body, the air outlet end cone, the exhaust pipe and the partition board are fixed in a full-circle welding mode.
The utility model discloses an it is fixed that each junction all adopts the full welding mode of all circles, and whole circle welding seam can carry out the shutoff to the gap of junction, prevents that moisture from invading from the gap of junction.
The utility model has the advantages as follows:
the utility model discloses a baffle can stop the moisture from blast pipe water conservancy diversion or invasion in the cavity between baffle and the end awl of giving vent to anger, prevents that moisture water conservancy diversion aftertreatment ware is inside and invade the carrier, avoids moisture to arouse the catalyst poisoning, has also avoided moisture to stained, the corruption on carrier and metal coating layer surface, guarantees that the catalytic reaction of carrier is even, guarantees the conversion efficiency of aftertreatment ware, and then has guaranteed whole exhaust system's performance.
The utility model discloses a downside circular arc of gas vent exceeds the certain height of downside circular arc of blast pipe, and the medial part of manger plate face shelters from a part mouth of pipe area of blast pipe downside promptly, when guaranteeing to satisfy the exhaust pressure, the manger plate face can directly block from the moisture that the blast pipe got into, and the manger plate effect is better, more thorough.
The utility model discloses a trompil region or opening when guaranteeing the sufficient scope of getting gas of sensor probe, still guarantee that the manger plate face of baffle has as big as possible the area of sheltering from, play effectual manger plate effect to the moisture of invasion.
The utility model discloses an it is fixed that each junction all adopts the full welding mode of all circles, and whole circle welding seam can carry out the shutoff to the gap of junction, prevents that moisture from invading from the gap of junction.
Drawings
Fig. 1 is a cross-sectional view of an aftertreatment device incorporating the invention.
Fig. 2 is a right side view of the present invention.
Fig. 3 is an exploded view of the tail structure of the post-processor.
Fig. 4 is a front view of the separator.
FIG. 5 is a perspective view of another embodiment of a baffle.
Fig. 6 is a front view of fig. 5.
In the figure: 1. a barrel; 2. a carrier; 3. an air outlet end cone; 4. an exhaust pipe; 5. a partition plate; 51. an exhaust port; 52. water retaining surface; 53. a through hole; 54. an opening area; 55. an opening; 6. a drain valve; 7. a sensor probe.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the utility model comprises a cylinder body 1, an air outlet end cone 3 and an exhaust pipe 4 which are connected in sequence from front to back, wherein all joints are fixed by adopting a full-circle welding mode, and the whole circle of welding line can plug the gap of the joint to prevent the water from invading from the gap of the joint; a carrier 2 is packaged in the cylinder 1; a plurality of sensor probes 7 penetrate through the upper conical surface of the gas outlet end cone 3, in the embodiment, two sensor probes 7 are arranged, and one is NOx(oxynitride) sensing probe for detecting NO in tail gasxThe other is a PM (inhalable particulate matter) sensing probe used for detecting the content of PM in the exhaust gas; as shown in fig. 1, a baffle 5 is fixedly welded at the front port of the air outlet end cone 3, the baffle 5 is positioned behind the carrier 2 and has a certain distance with the carrier 2, the baffle 5 and the air outlet end cone 3 are fixed by adopting a full-circle welding mode, and the whole circle of welding seam radially plugs the welding seam at the joint to prevent moisture from invading from the gap at the joint; a water outlet is formed in the lower side surface of the air outlet end cone 3 and behind the partition plate 5, and a drain valve 6 is arranged on the water outlet; the partition plate 5 can block the water guided or invaded from the exhaust pipe 4 in the cavity between the partition plate 5 and the air outlet end cone 3 to prevent the waterThe inside of the flow-guiding post-processor is invaded into the carrier 2, so that the poisoning of the catalyst caused by moisture is avoided, the fouling and corrosion of the moisture to the carrier 2 and the surface of the metal coating layer are also avoided, the uniform catalytic reaction of the carrier 2 is ensured, the conversion efficiency of the post-processor is ensured, and the performance of the whole exhaust system is further ensured; the water blocked by the partition plate 5 is accumulated at the bottom of the cavity, and when the water level of the accumulated water reaches a certain height, the drain valve 6 is triggered, the drain valve 6 is opened, and the accumulated water is discharged.
As shown in fig. 1, 2 and 3, the partition plate 5 is in the shape of a right-left symmetrical cone disk and an upper-lower asymmetrical cone disk, the small-diameter end part of the partition plate is upwardly offset by a certain distance, and the center of the small-diameter end is provided with an exhaust port 51; the conical surface of the partition board 5 positioned at the upper side of the exhaust port 51 is provided with a plurality of through holes 53, the opening areas 54 of the through holes 53 are fan-shaped conical surfaces which are bilaterally symmetrical along a plumb line, the opening areas 54 are correspondingly positioned right behind the sensor probes 7 and are used as gas taking channels of the sensors, and the remaining fan-shaped conical surfaces on the partition board 5 except the opening areas 54 are water retaining surfaces 52; referring to fig. 5 and 6, in another embodiment of the partition plate 5, the upper conical surface of the partition plate 5 located at the exhaust port 51 is directly cut off to form a fan-shaped opening 55, the opening 55 is bilaterally symmetric along the vertical line and is a sensor gas taking channel, and the remaining fan-shaped conical surface part except the opening 55 area is a water blocking surface 52; as shown in fig. 4 and 6, the central angle α of the opening area 54 or the opening 55 with the center of the exhaust port 51 as the center point is in the range of 100 ° to 175 °, so that the water blocking surface 52 of the partition plate 5 has a blocking area as large as possible while ensuring a sufficient air intake range of the sensor probe 7, and thus, the water blocking surface has an effective water blocking effect on the entering water. As shown in fig. 1 and fig. 2, the exhaust port 51 is upwards deviated by a certain distance along the exhaust pipe 4, the central axes of the exhaust port and the exhaust pipe are not coaxial, and the exhaust port and the exhaust pipe have certain height difference h, the height difference h is smaller than the radius of the exhaust pipe 4, as shown in fig. 2, the lower side arc of the exhaust port 51 is higher than the certain height of the lower side arc of the exhaust pipe 4, the raised maximum height is smaller than the radius of the exhaust pipe 4, namely, the inner side part of the water retaining surface 52 shields a part of pipe orifice area of the lower side of the exhaust pipe 4, and when the exhaust pressure is ensured to be satisfied, the water retaining surface 52 can directly block the.
When in actual use, the tail gas of the engine is input into the cylinder body 1, is subjected to catalytic reduction by the carrier 2, then passes through the partition plate 5 and the gas outlet end cone 3, and finally is discharged into the atmospheric environment through the exhaust pipe 4; when external moisture invades from the exhaust pipe 4, the partition plate 5 blocks the moisture in the cavity between the partition plate 5 and the air outlet end cone 3, and after the moisture is accumulated to a certain amount, the drain valve 6 is opened to discharge the accumulated moisture.
The utility model discloses a set up baffle 5 at postprocessor afterbody, 2 backs of carrier, will follow 4 water conservancy diversion of blast pipe or the moisture that invades and block in baffle 5 and the cavity between the end awl 3 of giving vent to anger, prevent that moisture water conservancy diversion postprocessor is inside and invade carrier 2, guarantee postprocessor's conversion efficiency.
The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides an aftertreatment ware afterbody dewatering structure, barrel (1), the end of giving vent to anger awl (3), blast pipe (4) connect gradually, and the encapsulation has carrier (2), its characterized in that in barrel (1): a partition plate (5) is fixed in the air outlet end cone (3), the partition plate (5) is positioned behind the carrier (2) and is away from the carrier (2) by a certain distance, and an air outlet (51) is formed in the partition plate (5); a drain valve (6) is arranged at the lower side of the air outlet end cone (3) and behind the partition plate (5).
2. The aftertreatment ware aft dewatering structure of claim 1, wherein: the lower arc of the exhaust port (51) is higher than the lower arc of the exhaust pipe (4) by a certain height.
3. The aftertreatment ware aft dewatering structure of claim 2, wherein: the maximum height of the arc at the lower side of the exhaust port (51) higher than the arc at the lower side of the exhaust pipe (4) is smaller than the radius of the exhaust pipe (4).
4. The aftertreatment ware aft dewatering structure of claim 1, wherein: the baffle plate (5) is in a conical disc shape which is asymmetric up and down, the small-diameter end part of the baffle plate is upwardly deviated for a certain distance, and the center of the small-diameter end is provided with an exhaust port (51); the exhaust port (51) is not coaxial with the central axis of the exhaust pipe (4) and has a certain height difference h.
5. The aftertreatment ware aft dewatering structure of claim 4, wherein: the height difference h is smaller than the radius of the exhaust pipe (4).
6. The aftertreatment ware aft dewatering structure of claim 1, wherein: the upside of the air outlet end cone (3) is provided with a plurality of sensor probes (7), and a sensor air taking channel is arranged on the partition board (5) and right behind the plurality of sensor probes (7).
7. The aftertreatment ware aft dewatering structure of claim 6, wherein: the air taking channel is a plurality of through holes (53) formed in the conical surface of the partition plate (5) and positioned on the upper side of the air outlet (51); or the air taking channel is a fan-shaped opening (55) which is arranged on the partition plate (5) and positioned at the upper side of the exhaust port (51).
8. The aftertreatment ware aft dewatering structure of claim 7, wherein: on the partition board (5), the opening areas (54) or the openings (55) of the plurality of through holes (53) are bilaterally symmetrical along a vertical line.
9. The aftertreatment ware aft dewatering structure of claim 7, wherein: the central angle alpha of the opening area (54) or the opening (55) with the center of the circle of the exhaust port (51) as the center point is more than or equal to 100 degrees and less than or equal to 175 degrees.
10. The aftertreatment ware aft dewatering structure of claim 1, wherein: the joints of the cylinder body (1), the air outlet end cone (3), the exhaust pipe (4) and the partition plate (5) are fixed in a full-circle welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022397272.3U CN213598051U (en) | 2020-10-26 | 2020-10-26 | Post-processor tail dewatering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022397272.3U CN213598051U (en) | 2020-10-26 | 2020-10-26 | Post-processor tail dewatering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213598051U true CN213598051U (en) | 2021-07-02 |
Family
ID=76592356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022397272.3U Expired - Fee Related CN213598051U (en) | 2020-10-26 | 2020-10-26 | Post-processor tail dewatering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213598051U (en) |
-
2020
- 2020-10-26 CN CN202022397272.3U patent/CN213598051U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210702 |