CN112432502A - DPF regeneration furnace and circulating system - Google Patents
DPF regeneration furnace and circulating system Download PDFInfo
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- CN112432502A CN112432502A CN202011250134.0A CN202011250134A CN112432502A CN 112432502 A CN112432502 A CN 112432502A CN 202011250134 A CN202011250134 A CN 202011250134A CN 112432502 A CN112432502 A CN 112432502A
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- Prior art keywords
- dpf
- hearth
- furnace
- heating
- regeneration furnace
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- 230000008929 regeneration Effects 0.000 title claims abstract description 39
- 238000011069 regeneration method Methods 0.000 title claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 239000000779 smoke Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000005422 blasting Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 19
- 239000007789 gas Substances 0.000 description 8
- 101100224419 Caenorhabditis elegans dpf-2 gene Proteins 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/02—Ohmic resistance heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/04—Circulating atmospheres by mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The application discloses DPF regenerator and circulation system. This DPF regeneration furnace includes: the DPF is arranged in the hearth; a heating assembly disposed around the DPF; and a circulator arranged on the top of the DPF and used for guiding the air heated by the heating component into the DPF for regeneration, and circularly guiding the gas generated by DPF regeneration into the DPF after being heated by the heating component. The technical problem of because DPF is heated easy blasting that inhomogeneous caused has been solved to this application.
Description
Technical Field
The application relates to the field of DPF regeneration, in particular to a DPF regeneration furnace and a circulation system.
Background
Currently, methods of DPF regeneration can be divided into three categories.
One method is a water washing method, but the liquid medicine in water has a corrosion effect on the DPF to influence the service life of the DPF, and after the water washing, the DPF can be used only by controlling the dry moisture, and the process of controlling the dry moisture is time-consuming, so that the efficiency is very low.
The second method is an air blowing method, the method uses strong airflow to blow the DPF, and part of soot particles are tightly adhered to the wall of the DPF hole and cannot be blown off at all, namely, the regeneration is not thorough; and strong airflow can easily puncture the hole wall of the DPF to cause scrapping.
The third method is a high-temperature oxidation method, which is the most common method at present, but because the DPF is a ceramic product, the heat conductivity is poor, if the temperature rise is too fast, the temperature difference between the inside and the outside of the DPF is too large, and the DPF is easy to crack; in addition, fresh air is not supplemented in the furnace, or sufficient oxygen does not reach the central position of the DPF, so that the regeneration is insufficient; in addition, when the DPF is cooled after regeneration, the cooling cannot be too fast, otherwise the DPF is easy to break due to uneven cooling and heating.
Aiming at the problem that the DPF is easy to crack due to uneven heating in the prior art, an effective solution is not provided at present.
Disclosure of Invention
The main objective of this application provides a DPF regenerator and circulation system to solve the easy problem of exploding that DPF was heated inhomogeneous and is caused.
In order to achieve the above object, according to one aspect of the present application, there is provided a DPF regeneration furnace.
The DPF regeneration furnace according to the application includes: the DPF is arranged in the hearth; a heating assembly disposed around the DPF; and a circulator arranged on the top of the DPF and used for guiding the air heated by the heating component into the DPF for regeneration, and circularly guiding the gas generated by DPF regeneration into the DPF after being heated by the heating component.
Further, the heating assemblies are three heating devices arranged on the left, right and lower sides of the DPF.
Further, the circulator is a circulating fan electrically connected with the power supply.
Further, the heating device is a resistance wire.
Further, the furnace includes: the DPF is arranged in the inner wall of the hearth, and the heating component is arranged between the inner wall of the hearth and the outer wall of the hearth.
Furthermore, the DPF is made of ceramic materials.
Further, the circulating fans are two arranged leftwards and rightwards respectively.
Further, the method also comprises the following steps: the air inlet pipeline is arranged in the hearth and communicated with the outside, and the air inlet valve is arranged on the air inlet pipeline.
Further, the method also comprises the following steps: and the smoke outlet is arranged in the hearth and is communicated with the outside.
In order to achieve the above object, according to another aspect of the present application, a circulation system is provided.
The circulation system according to the present application includes: the DPF regeneration furnace.
In the embodiment of the application, the air is recycled, and the air passes through the hearth and the DPF and is arranged in the hearth; a heating assembly disposed around the DPF; a circulator arranged on the top of the DPF for introducing the air heated by the heating assembly into the DPF for regeneration, and circularly introducing the gas generated by DPF regeneration into the DPF after being heated by the heating assembly; the purpose of enabling the DPF to be heated uniformly is achieved, the technical effect of avoiding the damage condition of the DPF due to explosion is achieved, and the technical problem that the DPF is prone to explosion caused by nonuniform heating is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural diagram of a DPF regeneration furnace according to an embodiment of the present application.
Reference numerals
1. A hearth; 2. a DPF; 3. a heating assembly; 4. a circulator; 5. the inner wall of the hearth; 6. the outer wall of the hearth; 7. an air intake duct; 8. an intake valve; 9. and a smoke outlet.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the present application relates to a DPF2 regenerator, the DPF2 regenerator comprising: the DPF2 is arranged in the hearth 1; a heating assembly 3 disposed about the DPF 2; and a circulator 4 disposed on the top of the DPF2, for introducing the air heated by the heating module 3 into the DPF2 for regeneration, and circularly introducing the gas generated by the regeneration of the DPF2 into the DPF2 after being heated by the heating module 3.
Specifically, the hearth 1 has the function of preventing heat dissipation; preferably, in this embodiment, the furnace 1 includes: the DPF2 is arranged in the inner furnace wall 5, and the heating assembly 3 is arranged between the inner furnace wall 5 and the outer furnace wall 6; an air channel is formed between the inner and outer furnace walls 5, 6 for accommodating the heating assembly 3 and allowing air to flow therein. The DPF2 is arranged in the hearth 1 and has the function of filtering diesel particles; in this embodiment, the DPF2 is preferably made of ceramic and has a good filtering ability. The heating component 3 has the function of heating air; the oxygen in the heated air can react with diesel particles (soot particles) in the DPF2 to generate carbon dioxide under the action of high temperature, so that the aim of regenerating the DPF2 is fulfilled; as is preferable in the present embodiment, the heating assemblies 3 are three heating devices disposed on the left, right, and lower sides of the DPF 2; preferably, in this embodiment, the heating device is a resistance wire. Therefore, the air entering from the top is heated by resistance wires arranged at the left, right and lower parts, enters the DPF2 from the bottom thereof for regeneration, and then is output from the top to generate gas after regeneration; the heating of air can be realized, and the regeneration of the DPF2 is guaranteed. The circulator 4 has a function of repeatedly circulating and introducing the heated air in the furnace 1 into the DPF 2; as is preferable in the present embodiment, the circulator 4 is a circulation fan electrically connected to a power supply; as is preferable in the present embodiment, the circulating fans are two that are respectively disposed leftward and rightward. If the furnace 1 is large, the air can be conveyed to the bottom of the DPF2 leftwards and rightwards respectively along the air channel by the circulating fan arranged leftwards and rightwards, then enters from the opening at the bottom upwards and passes through the DPF2 for regeneration, and finally the generated gas is output from the top of the DPF 2. The gas is then recycled through the circulator 4 in the same manner as described above. As an alternative, if the furnace 1 is smaller, only one circulation fan may be provided, and the air supply on the left and right sides is also realized. Therefore, high-temperature air can enter each position of the DPF2 (a diesel particulate filter), so that the whole DPF2 is heated uniformly, local overheating and even low-temperature conditions cannot occur, and the condition of explosion and damage caused by nonuniform heating cannot occur.
In practical use, when the circulating fans arranged leftwards and rightwards work, air is blown leftwards and rightwards, the air is respectively conveyed to the bottom from the left side and the right side along the air channel, and in the process, the air is heated by the heating devices arranged in the air channel; the heated air enters the DPF2 through the bottom port, and is regenerated by the DPF2 to generate a gas consisting of carbon dioxide and excess air, which is then circulated by the circulation fan.
From the above description, it can be seen that the following technical effects are achieved by the present application:
in the embodiment of the application, the air is recycled and is arranged in the hearth 1 through the hearth 1 and the DPF 2; a heating assembly 3 disposed about the DPF 2; a circulator 4 disposed on the top of the DPF2, for introducing the air heated by the heating module 3 into the DPF2 for regeneration, and circularly introducing the gas generated by the regeneration of the DPF2 into the DPF2 after being heated by the heating module 3; the purpose of enabling the DPF2 to be heated uniformly is achieved, the technical effect of avoiding the explosion damage condition is achieved, and the technical problem that the DPF2 is heated unevenly to cause easy explosion is solved.
Preferably, in this embodiment, the method further includes: the furnace comprises an air inlet pipeline 7 which is arranged in the furnace 1 and communicated with the outside, and an air inlet valve 8 which is arranged on the air inlet pipeline 7. The air inlet valve 8 has the function of adjusting the size of the inlet air, so that the size of the fresh air to be supplemented can be adjusted by adjusting the air inlet valve 8; the fresh air enters the DPF2 after being heated and mixed along the air flow circulation direction, so that sufficient oxygen is ensured in hot air entering the DPF2, and the DPF2 is ensured to be thoroughly and cleanly regenerated.
Preferably, in this embodiment, the method further includes: and the smoke outlet 9 is arranged on the hearth 1 and is communicated with the outside. The smoke outlet 9 can discharge waste gas such as carbon dioxide generated after high-temperature combustion.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A DPF regeneration furnace, comprising: the DPF is arranged in the hearth; a heating assembly disposed around the DPF; and a circulator arranged on the top of the DPF and used for guiding the air heated by the heating component into the DPF for regeneration, and circularly guiding the gas generated by DPF regeneration into the DPF after being heated by the heating component.
2. The DPF regeneration furnace of claim 1, wherein the heating assembly is three heating devices disposed at left, right, and lower sides of the DPF.
3. The DPF regeneration furnace of claim 1, wherein the circulator is a circulation fan electrically connected to a power source.
4. The DPF regeneration furnace of claim 2, wherein the heating device is a resistance wire.
5. The DPF regeneration furnace of claim 1, wherein the furnace includes: the DPF is arranged in the inner wall of the hearth, and the heating component is arranged between the inner wall of the hearth and the outer wall of the hearth.
6. The DPF regeneration furnace of claim 1, wherein the DPF is made of ceramic.
7. The DPF regeneration furnace of claim 3, wherein the circulating fan is two disposed respectively to the left and the right.
8. The DPF regeneration furnace of claim 1, further comprising: the air inlet pipeline is arranged in the hearth and communicated with the outside, and the air inlet valve is arranged on the air inlet pipeline.
9. The DPF regeneration furnace of claim 1, further comprising: and the smoke outlet is arranged in the hearth and is communicated with the outside.
10. A circulation system, comprising: a DPF regeneration furnace as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011250134.0A CN112432502A (en) | 2020-11-10 | 2020-11-10 | DPF regeneration furnace and circulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011250134.0A CN112432502A (en) | 2020-11-10 | 2020-11-10 | DPF regeneration furnace and circulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112432502A true CN112432502A (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011250134.0A Pending CN112432502A (en) | 2020-11-10 | 2020-11-10 | DPF regeneration furnace and circulating system |
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| CN (1) | CN112432502A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006046865A (en) * | 2004-08-06 | 2006-02-16 | Ibiden Co Ltd | Kiln, and method for firing ceramic |
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| US20100307339A1 (en) * | 2009-06-08 | 2010-12-09 | Tadrous Ted N | Apparatus and method for regenerating a carbon filter |
| JP2013177863A (en) * | 2012-02-28 | 2013-09-09 | Comotec Corp | Filter regeneration device |
| CN205119803U (en) * | 2015-10-13 | 2016-03-30 | 天津市盛通达实验设备有限公司 | Box fibre stove of energy -saving high temperature |
| JP2018021720A (en) * | 2016-08-04 | 2018-02-08 | パナソニックＩｐマネジメント株式会社 | Hot blast circulation type heating device and process of manufacture of separation film structure using the hot blast circulation type heating device |
| CN207348935U (en) * | 2017-06-05 | 2018-05-11 | 贵州黄帝车辆净化器有限公司 | For purging the cleaning plant of vehicle-mounted particle trapper offline |
| CN210399963U (en) * | 2019-06-09 | 2020-04-24 | 江苏苏能工业炉有限公司 | High-temperature electric furnace |
| CN111298644A (en) * | 2020-03-11 | 2020-06-19 | 安徽艾可蓝环保股份有限公司 | DPF high-temperature regeneration furnace and DPF high-temperature regeneration furnace exhaust purification method |
| CN211120635U (en) * | 2019-11-22 | 2020-07-28 | 上海创怡环境技术有限公司 | DPF baking maintenance equipment |
| CN211503690U (en) * | 2019-12-26 | 2020-09-15 | 江苏大华电子有限公司 | Magnetic core thermal forming heating furnace with monitoring function |
| CN213687841U (en) * | 2020-11-10 | 2021-07-13 | 杨昌忠 | DPF regeneration furnace and circulating system |
-
2020
- 2020-11-10 CN CN202011250134.0A patent/CN112432502A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006046865A (en) * | 2004-08-06 | 2006-02-16 | Ibiden Co Ltd | Kiln, and method for firing ceramic |
| US20090044523A1 (en) * | 2005-03-04 | 2009-02-19 | Donaldson Company, Inc. | Apparatus for combusting collected diesel exhaust material from aftertreatment devices and method |
| US20100307339A1 (en) * | 2009-06-08 | 2010-12-09 | Tadrous Ted N | Apparatus and method for regenerating a carbon filter |
| JP2013177863A (en) * | 2012-02-28 | 2013-09-09 | Comotec Corp | Filter regeneration device |
| CN205119803U (en) * | 2015-10-13 | 2016-03-30 | 天津市盛通达实验设备有限公司 | Box fibre stove of energy -saving high temperature |
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Application publication date: 20210302 |
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