CN214499204U - Regenerative particle trap - Google Patents
Regenerative particle trap Download PDFInfo
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- CN214499204U CN214499204U CN202120576521.7U CN202120576521U CN214499204U CN 214499204 U CN214499204 U CN 214499204U CN 202120576521 U CN202120576521 U CN 202120576521U CN 214499204 U CN214499204 U CN 214499204U
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Abstract
The utility model provides a regenerative particle catcher, which comprises a catcher shell and a catalyst filter element; the catalyst filter element comprises an outer core and an inner core; one end of the outer core body, which is close to the inlet pipe, is provided with a conical groove, the other end of the outer core body is provided with an annular outer cavity and an annular inner cavity which extend inwards, the inner core body is inserted into the annular inner cavity of the outer core body, one end of the inner core body is abutted against the inner wall of the annular inner cavity of the outer core body, the other end of the inner core body is fixedly provided with a baffle, the inner side wall of the baffle is abutted against the end surface of the outer core body, and the baffle covers the annular inner cavity; the bottom of the conical groove of the outer core body is provided with a runner hole; the outlet pipe is a three-way pipe, one pipe orifice of the outlet pipe is coaxially arranged with the inner core body, and a blind plate is arranged at the pipe orifice; the outer side wall of the baffle plate is fixedly connected with the inner side wall of the blind plate through a connecting rod. The utility model discloses a only need dismantle the inlayer core during the particle trap deashing, inlayer core easy dismounting, work load is little, enables DPF and resumes the filter effect.
Description
Technical Field
The utility model belongs to the technical field of automobile exhaust treatment facility, concretely relates to regeneration type particle trap.
Background
A particulate trap (DPF) is a filter installed in the exhaust system of a diesel engine that traps particulate emissions before they enter the atmosphere. The DPF, in addition to collecting soot, collects oil, additives, and substances resulting from the combustion of diesel fuel, also known as ash. With the long-term use of DPF, soot and ash are accumulated on the inner wall of DPF, on one hand, the effective filtering area of DPF is reduced, thereby affecting the trapping efficiency of DPF, and on the other hand, the exhaust back pressure is increased, resulting in various failure phenomena of the vehicle.
When the DPF is blocked, the purification efficiency of the DPF on the automobile exhaust is reduced, and a new particle trap or a filter element needs to be replaced, so that the cost is high; the existing reproducible DPF mostly needs to be disassembled to clean the blocked soot and ash of the whole particulate trap, but the workload is large and the efficiency is low when the particulate trap is integrally assembled and disassembled.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a regeneration type particle trap, when this particle trap maintenance was maintained, only need dismantle the inlayer core and get off cleanly, get rid of soot and ash content, the reinstallation just can resume particle trap's filter effect, inlayer core easy dismounting, and the work load is little, and particle trap maintenance efficiency is high.
The utility model discloses a following technical scheme realizes:
the utility model provides a regenerative particle trap, includes the trap casing and installs in the inside catalyst filter core of trap casing, and the trap casing is connected by import pipe, expansion pipe, barrel, reducer and outlet pipe and is constituteed, specifically, import pipe, expansion pipe, barrel, reducer and outlet pipe connect gradually and weld into an organic whole, its characterized in that:
the catalyst filter element comprises an outer core and an inner core;
the outer-layer core body is arranged in the cylinder body, one end of the outer-layer core body, which is close to the inlet pipe, is provided with a conical groove, the other end of the outer-layer core body is provided with an annular outer cavity and an annular inner cavity which extend inwards,
the inner core body is cylindrical and is inserted into the annular inner cavity of the outer core body, one end of the inner core body abuts against the inner wall of the annular inner cavity of the outer core body, a baffle is fixedly arranged at the other end of the inner core body, the inner side wall of the baffle abuts against the end face of the outer core body, and the baffle covers the annular inner cavity;
a runner hole communicated with the annular inner cavity is formed in the bottom of the conical groove of the outer-layer core body and is communicated with the inner part of the inner-layer core body;
the inner side wall of the inner-layer core body is provided with a metal fiber felt which can adsorb and filter soot and ash;
the outlet pipe is a three-way pipe, one pipe orifice of the outlet pipe is coaxially arranged with the inner core body, a blind plate for plugging the pipe orifice is arranged at the pipe orifice, and the blind plate is detachably and hermetically connected with the outlet pipe; the outer side wall of the baffle and the inner side wall of the blind plate are fixedly connected through a connecting rod, and the baffle and the inner core body can be drawn out of the trap shell from the pipe orifice of the outlet pipe through the blind plate, so that carbon smoke and ash in the inner core body can be cleaned conveniently; specifically, the other of the inlet and outlet pipes is connected to the front and rear pipes of the engine exhaust system.
According to the above technical scheme, the utility model provides a pair of regenerative particle trap, beneficial effect lies in: when the particle catcher works, automobile exhaust enters a cylinder body of a catcher shell through an inlet pipe; automobile exhaust is filtered by the inner side wall of the conical groove of the outer core body, or flows into the inner core body from the runner hole, is filtered to the annular inner cavity by the inner side wall of the inner core body, and is filtered to the annular outer cavity by the annular inner cavity; when the automobile exhaust is filtered, soot and ash in the automobile exhaust are retained, and the soot and the ash on the inner side wall of the conical groove are gathered in the inner core under the action of airflow and are finally retained in the inner core; when the particle trap needs to clean ash, the blind plate is opened, the baffle and the inner core body are drawn out of the trap shell from the pipe orifice of the outlet pipe, and carbon smoke and ash in the inner core body are cleaned, so that the inner core body can recover the filtering efficiency; during the deashing, only need dismantle the inlayer core, this inlayer core easy dismounting, work load is little, and the inlayer core filter effect regeneration after the clearance, and particle trap maintenance is efficient.
Further limiting, the conical groove, the annular outer cavity, the annular inner cavity and the inner core body of the outer core body are coaxially arranged, automobile exhaust entering the cylinder body can be filtered through the inner wall of the conical groove of the outer core body, can also flow into the inner core body and is filtered to the annular inner cavity through the side wall of the inner core body, and then is filtered to the annular outer cavity through the annular inner cavity.
The inner wall of the annular inner cavity of the outer core body is provided with a conical guide cylinder, the outer part of the conical guide cylinder and the inner side wall of the baffle are provided with sealing gaskets, the structure can improve the connection stability of the inner core body and the outer core body, and the sealing gaskets can improve the propping tightness of the inner core body and the inner wall of the annular inner cavity of the outer core body and the propping tightness of the baffle and the end surface of the outer core body; specifically, the gasket is made of a high temperature resistant, corrosion resistant material.
Further defined, the outer core is made of aluminum titanate or cordierite and the inner core is made of silicon nitride, which is effective to improve DPF regeneration efficiency.
Further limiting, the outer side wall of the blind plate is provided with a pull handle, so that the inner core body can be conveniently pushed and pulled.
Further limiting, a blocking cylinder is arranged in the outlet pipe, the blocking cylinder is arranged outside the connecting rod, one end of the blocking cylinder is fixedly connected with the blind plate, the other end of the blocking cylinder is inclined, and the structure can guide the tail gas of the automobile to flow into the outlet end; specifically, a flange is arranged between the blind plate and the outlet pipe and is connected with the blind plate through bolts and nuts, or the blocking cylinder is in threaded connection with the outlet pipe.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view taken along the line a-a in fig. 1.
Fig. 3 is a cross-sectional view taken along the line B-B in fig. 1.
In the drawings: 11-inlet pipe, 12-expanding pipe, 13-cylinder, 14-reducing pipe, 15-outlet pipe, 2-outer core, 21-conical groove, 22-annular outer cavity, 23-annular inner cavity, 24-flow channel hole, 25-conical guide cylinder, 3-inner core, 4-baffle, 5-metal fiber felt, 6-blind plate, 7-connecting rod, 8-sealing gasket, 9-pull handle and 10-blocking cylinder.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "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 in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 3, a regenerative particle trap includes a trap shell and a catalyst filter element installed inside the trap shell, the trap shell is formed by connecting an inlet pipe 11, an expansion pipe 12, a cylinder 13, a reducer 14 and an outlet pipe 15, specifically, the inlet pipe 11, the expansion pipe 12, the cylinder 13, the reducer 14 and the outlet pipe 15 are connected in sequence and welded into a whole, and is characterized in that:
the catalyst filter element comprises an outer core body 2 and an inner core body 3; the outer core 2 is made of aluminum titanate, and the inner core 3 is made of silicon nitride, which is effective in improving DPF regeneration efficiency;
the outer core body 2 is arranged in the cylinder body 13, one end of the outer core body 2 close to the inlet pipe 11 is provided with a conical groove 21, the other end is provided with an annular outer cavity 22 and an annular inner cavity 23 which extend inwards,
the inner core body 3 is cylindrical, the inner core body 3 is inserted into the annular inner cavity 23 of the outer core body 2, one end of the inner core body 3 abuts against the inner wall of the annular inner cavity 23 of the outer core body 2, the other end of the inner core body is fixedly provided with a baffle 4, the inner side wall of the baffle 4 abuts against the end face of the outer core body 2, and the baffle 4 covers the annular inner cavity 23;
the conical groove 21, the annular outer cavity 22, the annular inner cavity 23 and the inner core body 3 of the outer core body 2 are coaxially arranged, automobile exhaust entering the cylinder body 13 can be filtered by the inner wall of the conical groove 21 of the outer core body 2, can also flow into the inner core body 3 and is filtered to the annular inner cavity 23 by the side wall of the inner core body 3, and then is filtered to the annular outer cavity 22 by the annular inner cavity 23; the bottom of the conical groove 21 of the outer core body 2 is provided with a runner hole 24 communicated with the annular inner cavity 23, and the runner hole 24 is communicated with the inside of the inner core body 3;
the inner side wall of the inner core body 3 is provided with a metal fiber felt 5, and the metal fiber felt 5 can adsorb and filter soot and ash;
the outlet pipe 15 is a three-way pipe, one pipe orifice of the outlet pipe 15 is coaxially arranged with the inner-layer core body 3, a blind plate 6 for plugging the pipe orifice is arranged at the pipe orifice, and the blind plate 6 is detachably connected with the outlet pipe 15 in a sealing manner; the outer side wall of the baffle 4 is fixedly connected with the inner side wall of the blind plate 6 through a connecting rod 7, and the baffle 4 and the inner core body 3 can be drawn out of the trap shell from the pipe orifice of the outlet pipe 15 through the blind plate 6, so that carbon smoke and ash in the inner core body 3 can be cleaned conveniently; specifically, the other of the orifices of the inlet pipe 11 and the outlet pipe 15 is connected to the front and rear pipes of the engine exhaust system.
In this embodiment, the inner wall of the annular inner cavity 23 of the outer core 2 is provided with the tapered guide cylinder 25, the outer part of the tapered guide cylinder 25 and the inner side wall of the baffle 4 are both provided with the sealing gasket 8, the structure can improve the stability of the connection between the inner core 3 and the outer core 2, and the sealing gasket 8 can improve the sealing performance of the inner core 3 against the inner wall of the annular inner cavity 23 of the outer core 2 and the sealing performance of the baffle 4 against the end surface of the outer core 2; specifically, the gasket 8 is made of a high-temperature resistant, corrosion resistant material.
In this embodiment, the outer side wall of the blind plate 6 is provided with a pull handle 9, which is convenient for pushing and pulling the inner core body 3.
In the embodiment, the outlet pipe 15 is internally provided with the blocking cylinder 10, the blocking cylinder 10 is arranged outside the connecting rod 7, one end of the blocking cylinder 10 is fixedly connected with the blind plate 6, and the other end of the blocking cylinder is inclined, so that the structure can guide the automobile exhaust to flow into the outlet end; specifically, a flange is arranged between the blind plate 6 and the outlet pipe 15 and is connected through bolts and nuts.
The working principle of the embodiment is as follows: when the particle catcher works, automobile exhaust enters a cylinder body 13 of a catcher shell through an inlet pipe 11; automobile exhaust is filtered by the inner side wall of the conical groove 21 of the outer core body 2, or flows into the inner core body 3 from the runner hole 24, is filtered to the annular inner cavity 23 by the inner side wall of the inner core body 3, and is filtered to the annular outer cavity 22 by the annular inner cavity 23; when the automobile exhaust is filtered, the soot and the ash in the automobile exhaust are retained, and the soot and the ash on the inner side wall of the conical groove 21 are gathered towards the inner core body 3 under the action of airflow and are finally retained in the inner core body 3; when the particle trap needs to clean ash, the blind plate 6 is opened, the baffle 4 and the inner core body 3 are drawn out of the trap shell from the pipe orifice of the outlet pipe 15, carbon smoke and ash in the inner core body 3 are cleaned, and the inner core body 3 can recover the filtering efficiency; during the deashing, only need dismantle inlayer core 3, this inlayer core 3 easy dismounting, work load is little, and the 3 filter effect regeneration of inlayer core after the clearance, particle trap maintenance efficiency is high.
Claims (6)
1. The utility model provides a regenerative particle trap, includes the trap casing and installs in the inside catalyst filter core of trap casing, and the trap casing is connected by import pipe, expansion pipe, barrel, reducer and outlet pipe and is formed its characterized in that:
the catalyst filter element comprises an outer core and an inner core;
the outer-layer core body is arranged in the cylinder body, one end of the outer-layer core body, which is close to the inlet pipe, is provided with a conical groove, the other end of the outer-layer core body is provided with an annular outer cavity and an annular inner cavity which extend inwards,
the inner core body is cylindrical and is inserted into the annular inner cavity of the outer core body, one end of the inner core body abuts against the inner wall of the annular inner cavity of the outer core body, a baffle is fixedly arranged at the other end of the inner core body, the inner side wall of the baffle abuts against the end face of the outer core body, and the baffle covers the annular inner cavity;
a runner hole communicated with the annular inner cavity is formed in the bottom of the conical groove of the outer-layer core body and is communicated with the inner part of the inner-layer core body;
the inner side wall of the inner-layer core body is provided with a metal fiber felt;
the outlet pipe is a three-way pipe, one pipe orifice of the outlet pipe is coaxially arranged with the inner core body, a blind plate for plugging the pipe orifice is arranged at the pipe orifice, and the blind plate is detachably and hermetically connected with the outlet pipe; the outer side wall of the baffle plate is fixedly connected with the inner side wall of the blind plate through a connecting rod.
2. The regenerative particulate trap of claim 1, wherein: the conical groove, the annular outer cavity, the annular inner cavity and the inner core body of the outer core body are coaxially arranged.
3. The regenerative particulate trap of claim 2, wherein: the inner wall of the annular inner cavity of the outer-layer core body is provided with a conical guide cylinder, and the outer part of the conical guide cylinder and the inner side wall of the baffle are both provided with sealing gaskets.
4. A regenerative particulate trap as claimed in any one of claims 1 to 3, characterized in that: the outer core body is made of aluminum titanate or cordierite, and the inner core body is made of silicon nitride.
5. The regenerative particulate trap of claim 1, wherein: the outer side wall of the blind plate is provided with a pull handle.
6. The regenerative particulate trap of claim 5, wherein: the inner part of the outlet pipe is provided with a blocking cylinder, the blocking cylinder is arranged outside the connecting rod, one end of the blocking cylinder is fixedly connected with the blind plate, and the other end of the blocking cylinder is inclined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120576521.7U CN214499204U (en) | 2021-03-22 | 2021-03-22 | Regenerative particle trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120576521.7U CN214499204U (en) | 2021-03-22 | 2021-03-22 | Regenerative particle trap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499204U true CN214499204U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120576521.7U Active CN214499204U (en) | 2021-03-22 | 2021-03-22 | Regenerative particle trap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499204U (en) |
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2021
- 2021-03-22 CN CN202120576521.7U patent/CN214499204U/en active Active
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