CN208718765U - It can be used for electrically heated metallic carrier - Google Patents
It can be used for electrically heated metallic carrier Download PDFInfo
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- CN208718765U CN208718765U CN201820685828.9U CN201820685828U CN208718765U CN 208718765 U CN208718765 U CN 208718765U CN 201820685828 U CN201820685828 U CN 201820685828U CN 208718765 U CN208718765 U CN 208718765U
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- corrugated plate
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Abstract
The utility model discloses one kind can be used for electrically heated metallic carrier, it include: metallic carrier inner core, it includes at least one set of carrier-pellet, every group of carrier-pellet includes can electrically heated plain film and corrugated plate, the metallic carrier inner core is that sequentially winding fixation forms in the way of a piece of corrugated plate of a piece of plain film for the plain film and the corrugated plate, wherein, the circumferential direction of at least one of which sheet body is covered with insulating layer in arbitrary neighborhood plain film and corrugated plate.The utility model is firm with overall structure, and space utilization is sufficient, quickly improves delivery temperature, synchronous to improve catalyst temperature, shortens catalyst and originates the working time, improves the beneficial effect of emission effect.
Description
Technical field
The utility model relates to electric heating metallic carrier technical fields.More specifically, the utility model relates to one kind can
For electrically heated metallic carrier and preparation method thereof.
Background technique
Catalytic convention design is the effect using catalyst, by CO, HC and NO in exhaustxIt is converted to harmless
Gas a kind of emission-control equipment, three-way catalytic converter does not have catalytic capability under room temperature, and catalyst must heat
Just there is the ability of oxidation or reduction to certain temperature, the initiation temperature of usual catalytic converter is worked normally at 250-350 DEG C
For temperature generally at 350 DEG C or more, cold-start phase delivery temperature, which fails to reach catalyst light-off temperature, makes catalytic converter
Transformation efficiency is very low, while the starting discharge amount started is high, causes have a large amount of pollutant emissions when cold start-up, studies have shown that should
HC discharge amount will account for (60%-80%) of entire test loop total release in test phase, but individually adjustment catalysis
The problem that delivery temperature is low when agent prescription not can solve cold start-up, vehicular emission amount is big, catalysis when how to adjust cold start-up
The temperature of converter is the key that emission control technique.
Similarly, the optimal means of control of global the 5th stage of diesel vehicle and the 6th stage emission are using SCR at present
System sprays into reducing agent ammonia or urea, the NO in tail gas under the effect of the catalystxIt is reduced into N2And H2O, SCR system
Key is the fast pyrogenation of urea.For urea after urea nozzle, it is higher that urea is sprayed ambient temperature, and urea pyrolysis reaction is got over
Fastly, conversely, temperature is lower, the slower the pyrolytic reaction of urea the more insufficient, will form crystallization, shadow once urea pyrolysis is insufficient
The normal work of entire exhaust after treatment system is rung, therefore, SCR technology application must solve the problems, such as urea crystals.Work as engine
In cold start-up and running on the lower load, engine exhaust temperature is lower, although needing SCR less for work；But too low exhaust
It is insufficient that temperature is still easy to cause urea to decompose, and is easy to appear urea crystals problem.Although the burn incompletely for passing through fuel oil
Means can promote delivery temperature to a certain extent, but waste fuel oil to the heating of whole gas exhaust piping and promote temperature
It spends slower, and is easy to make discharge to deteriorate, how to improve the temperature of SCR carrier to avoid urea crystals be emission of diesel engine control skill
The key of art.
Further, with the use of new-energy automobile, if hybrid vehicle and liquefied gas, methanol, ethyl alcohol are as power
Automobile gradually popularize, also encounter since delivery temperature is low, how the undesirable problem of catalytic conversion effect adjusts cold start-up
When catalyst temperature be equally emission control technique, emphasis is stressed that the shape of hybrid electric vehicle here
Condition, when electronic-gasoline mode conversion, tail-gas catalyst the case where being in lower than initiation temperature for a long time, gasoline starting
Afterwards, the time of the heatable catalyst of a few minutes is needed, exhaust emissions is in therefore how the state not handled improves rapidly
The temperature of catalyst, the pollution for reducing exhaust emissions is equally current urgent problem.
Currently, the mode of common catalytic converter heating is to improve exhaust temperature using resistance wire or electrothermal tube heating to reach
Degree, but the surface area of resistance wire or electrothermal tube is smaller, and enough heats cannot be quickly provided, Authorization Notice No. CN
206987930U, entitled one kind can preheating catalyst converter metallic carrier, metallic carrier catalysis inner core front end be arranged
There is electric heating inner core, electric heating inner core is powered in the engine cold-start stage can quickly improve the temperature of electric heating inner core, into
And the temperature of the vehicle exhaust by electric heating inner core is improved, to improve the catalytic efficiency of subsequent catalyst inner core, but substantially
Similar to the electrothermal tube of contact area is increased, although surface area increases, indirect heating, the instantaneity of heating are still fallen within
It has certain problems；Authorization Notice No. is CN105464766B, entitled one kind can electric heating metallic carrier production method,
The patent uses in metallic carrier that there are the modes in one group of gap to solve the problems, such as metal insulation between plates, if gap mistake
It is insufficient to will cause emission heating greatly, the reduction of post-processing efficiency, if gap is too small, metallic carrier is prolonged high
The problem of will appear gap closure under the action of mild vibration, causes carrier inside short-circuit, loses heating function, while it is still
Belong to indirect heating, set on the front end of catalytic converter, the instantaneity of heating is had certain problems；
For this purpose, increasingly strict with emission regulation, provide a kind of stable structure, reliable performance can electric heating carrier,
It is current urgent problem.
Utility model content
One purpose of the utility model is to solve at least the above problems, and provide the advantages of at least will be described later.
The utility model, which is to provide one kind there are one purpose, can be used for electrically heated metallic carrier, and overall structure is steady
Gu space utilization is sufficient, the vent gas treatment amount in certain time is effectively ensured, and improve treatment effect.
In order to realize these purposes and other advantages according to the present utility model, providing one kind can be used for electrically heated gold
Belong to carrier, comprising: metallic carrier inner core comprising at least one set of carrier-pellet, every group of carrier-pellet includes can electrically heated plain film
And corrugated plate, the metallic carrier inner core are that the plain film and the corrugated plate are suitable in the way of a piece of corrugated plate of a piece of plain film
Secondary winding fixation forms, wherein the circumferential direction of at least one of which sheet body is covered with insulating layer in arbitrary neighborhood plain film and corrugated plate.
Preferably, the plain film and the corrugated plate are suppressed by siderochrome aluminium foil strip, wherein the plain film and institute
The thickness for stating corrugated plate is 0.03-0.1mm.
Preferably, the insulating layer is one of ceramic coating, oxide skin(coating) or aln layer or successively coats
It is several, wherein the ceramic coating with a thickness of 0.005-0.1mm, the oxide skin(coating), described or aln layer the thickness
It is 0.0002-0.005mm.
Preferably, described to can be used for electrically heated metallic carrier, further includes: central electrode, the plain film and described
One end of corrugated plate is electrically connected and is fixedly arranged on the central electrode, and is wound by axis of central electrode；
At least one external electrode, the number of the external electrode are equal to the group number of the carrier-pellet, the plain film of one group of carrier-pellet
And the free end of corrugated plate is fixedly arranged on an external electrode, and is electrically connected with the external electrode.
Preferably, the central electrode is one of hollow tube or solid tube body.
Preferably, described to can be used for electrically heated metallic carrier, further includes: shell, the metallic carrier inner core cover
Loaded in the shell.
Preferably, it is suppressed at least on the plain film side and corrugated plate side along blade width direction interval
One groove, the groove are arranged along pellet length direction, and metallic carrier inner core winds for plain film and corrugated plate, and adjacent plain film
It is engaged fixation with the groove of corrugated plate to form, wherein the longitudinal cross-section of the groove is nearly trapezoidal or rectangle.
Preferably, the length of the shell be slightly larger than or equal to the metallic carrier inner core length, the shell
Both ends are installed with fixed frame, to fix metallic carrier inner core.
Preferably, the plain film and the circumferentially deposited of the corrugated plate have catalyst.
The utility model is include at least the following beneficial effects:
The first, firstly, sequentially winding forms cellular metallic carrier in the way of a piece of plain film and a piece of corrugated plate
Inner core, overall structure is firm, effectively avoids caused malformation problem under the action of prolonged high temperature and vibration；Its
Secondary, its entire inner space even partition and sufficiently full utilization are not present space waste, increased by Beehive metal carrier inner core
Contact area between tailing gas and Beehive metal carrier inner core, and be heated evenly, the tail gas in certain time is effectively ensured
Treating capacity, and improve treatment effect；
The second, often containing conductive carbon particle in tail gas, inevitably the tail gas containing carbon particle passes through metallic carrier
Inner core, and be attached on the metallic carrier inner core, as the aggregation of carbon particle causes adjacent plain film and corrugated plate to pass through carbon
Particle shape is at connection, but the circumferential direction of at least one of which sheet body is covered with insulation in arbitrary neighborhood plain film and corrugated plate in the application
Layer, so even if all sheet bodies, which are powered to assembling in the hollow air duct of metallic carrier inner core, not will lead to adjacent flat
It is electrically connected between piece and corrugated plate, and covers the metallic carrier inner core of insulating layer, due to the week of the plain film and the corrugated plate
To insulating layer is covered with, even so aggregation not will lead to adjacent flat piece and corrugated plate equally in the end of metallic carrier inner core
Between be electrically connected, it is close and the resistance value of metallic carrier inner core is caused to change, reduce the heating effect of entire metallic carrier inner core, or
It is preferred that being covered with the energization of insulating layer and not being covered with the no power of insulating layer, equally there is no ends is electrically connected by carbon particle
Logical problem, the end of adjacent two panels because interval one is covered with the sheet body of insulating layer equally there is no being electrically connected,
(it is different from the simple sandwiched insulating layer between adjacent plain film and corrugated plate；Or air is used as disclosed in CN105464766B
Layer can have the possibility that resistance changes as insulating layer)；For the mode of whole insulating layers covering, due to making metal
The plain film of carrier inner core and the circumferential direction of corrugated plate are covered with insulating layer, so the entire outer peripheral surface of metallic carrier inner core is equivalent to
The problem of one insulated outer surface, there is no when plain film and corrugated plate conduction, the contact of metallic carrier inner core is charged, safety
It is greatly improved, meanwhile, relative to existing metallic carrier, it can be set with without using insulation crust.
Third, the insulating layer are one of ceramic coating, oxide skin(coating) or aln layer or successively coat several
Kind, wherein ceramic coating with a thickness of 0.005-0.1mm, oxide skin(coating) or aln layer with a thickness of 0.0002-
0.005mm while capable of guaranteeing coating insulation, avoids the heating of metallic carrier inner core caused by the coating due to coating
The excessive descent of speed reduces influence of the ceramic coating addition for metallic carrier inner core heating properties；
4th, central electrode is set as tubulose, but heated more uniform, and the central electrode of hollow tube setting can
Be effectively reduced the thermal capacity of central electrode itself, improve heating rate, fastened by nearly ladder or rectangular recess, structure it is simple and
Stability is good, and the metallic carrier inner core after being fastened by groove further passes through cross or rice cabinet frame is fixed in shell,
Shell is tubular compatible with metallic carrier inner core at this time.
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is that can be used for when electrically heated metallic carrier is not wound described in the utility model one of which technical solution
Structural schematic diagram；
Fig. 2 is that can be used for when electrically heated metallic carrier is not wound described in the utility model one of which technical solution
Structural schematic diagram；
Fig. 3 is the knot that can be used for when electrically heated metallic carrier is not wound described in the utility model one of which technical solution
Structure schematic diagram；
Fig. 4 is the structural schematic diagram after the utility model one of which technical solution winding corresponding with Fig. 1；
Fig. 5 is the structural schematic diagram after the utility model one of which technical solution winding corresponding with Fig. 2；
Fig. 6 is the structural schematic diagram after the utility model one of which technical solution winding corresponding with Fig. 3；
Fig. 7 is the structural schematic diagram of shell described in the utility model one of which technical solution；
Fig. 8 is that the structural schematic diagram for intersecting cylinder is shunk described in the utility model one of which technical solution.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, to enable those skilled in the art's reference say
Bright book text can be implemented accordingly.
As shown in figures 1-8, the utility model, which provides one kind, can be used for electrically heated metallic carrier, comprising:
Metallic carrier inner core comprising at least one set of carrier-pellet, every group of carrier-pellet includes can electrically heated 10 He of plain film
Corrugated plate 11, the metallic carrier inner core are the plain film 10 and the corrugated plate 11 according to a piece of corrugated plate of a piece of plain film 10
11 mode sequentially winds fixation and forms, wherein the week of at least one of which sheet body in arbitrary neighborhood plain film 10 and corrugated plate 11
To being covered with insulating layer.
In the above-mentioned technical solutions, a plain film 10 or a corrugated plate 11 are collectively termed as " sheet body ", and metal carries
The coverage mode of internal core insulation layer includes following four major class mode, and first, cover on whole corrugated plate 11 and plain film 10
There is insulating layer；The second, it is covered with insulating layer on whole corrugated plates 11, does not cover insulating layer on whole plain films 10；It is third, complete
It is covered with insulating layer on portion's plain film 10, does not cover insulating layer on whole corrugated plates 11；4th, corrugated plate 11 and plain film 10 select
The covering of selecting property, but guarantee that the circumferential direction of at least one of which sheet body in arbitrary neighborhood plain film 10 and corrugated plate 11 is covered with insulation
Layer.Plain film 10 and corrugated plate 11 be can electrically heated sheet body, so electrically heated mode include at least it is following several: first:
Equal electrified regulation on whole corrugated plates 11 and plain film 10；The second, whole 11 electrified regulation of corrugated plate, and plain film 10 is not added
Heat；Third, whole 10 electrified regulations of plain film and the obstructed electric heating of corrugated plate 11；4th, it is selected according to design and work requirements
Property make certain need the sheet body electrified regulations that heat；In use process, be powered the sheet body galvanization heating for making to need to heat, into
And the hot gas to be added (if being installed on the escape pipe 81 of vehicle exhaust, hot gas to be added is vehicle exhaust) that needs heat is added
Heat.Using this technical solution, firstly, sequentially winding forms honeycomb in the way of a piece of plain film 10 and a piece of corrugated plate 11
Metallic carrier inner core, overall structure is firm, and caused structure under the action of prolonged high temperature and vibration is effectively avoided to become
Shape problem；Secondly, Beehive metal carrier inner core is by its entire inner space even partition and sufficiently full utilization, there is no skies
Between waste, increase the contact area between tail gas and Beehive metal carrier inner core, and be heated evenly, certain time be effectively ensured
Interior vent gas treatment amount, and improve treatment effect；Further, inevitably contain in tail gas often containing conductive carbon particle
The tail gas of carbon particle is attached on the metallic carrier inner core by metallic carrier inner core, as the aggregation of carbon particle causes
Adjacent plain film 10 and corrugated plate 11 are formed by carbon particle to be connected, but in the application in arbitrary neighborhood plain film 10 and corrugated plate 11
The circumferential direction of at least one of which sheet body is covered with insulating layer, so even if all sheet bodies are powered in the hollow of metallic carrier inner core
Air duct in assemble not will lead to and be electrically connected between adjacent flat piece 10 and corrugated plate 11, and for covering insulating layer
Metallic carrier inner core, since the circumferential direction of the plain film 10 and the corrugated plate 11 is covered with insulating layer, even so in metal
The end aggregation of carrier inner core not will lead to equally to be electrically connected between adjacent flat piece 10 and corrugated plate 11, closely causes in metallic carrier
The resistance value of core changes, and reduces the heating effect of entire metallic carrier inner core, or be preferably covered with insulating layer energization and not
It is covered with the no power of insulating layer, is powered even if equally there is no ends by the sheet body that carbon particle does not cover insulating layer, phase
The end of adjacent two panels (is different from simple because interval one is covered with the sheet body of insulating layer equally there is no being electrically connected
The sandwiched insulating layer between adjacent plain film 10 and corrugated plate 11；Or use air layer as absolutely as disclosed in CN105464766B
Edge layer can have the possibility that resistance changes)；Finally, for the coverage mode of the third metallic carrier inner core insulating layer,
Since the plain film 10 of production metallic carrier inner core and the circumferential direction of corrugated plate 11 are covered with insulating layer, so metallic carrier inner core
Entire outer peripheral surface is equivalent to an insulated outer surface, is not present when plain film 10 and conductive corrugated plate 11, metallic carrier inner core
The problem of contact electrification, safety is greatly improved, meanwhile, relative to existing metallic carrier, it can be without using insulation
Shell 4 is set with.
In another technical solution, the plain film 10 and the corrugated plate 11 are suppressed by siderochrome aluminium foil strip,
In, the thickness of the plain film 10 and the corrugated plate 11 is 0.03-0.1mm.Using this technical solution, siderochrome aluminium foil strip is
Heat-resisting material, thickness control is in 0.03-0.1mm, made from the plain film 10 and corrugated plate 11 of relatively thin siderochrome aluminium foil strip compacting
Metallic carrier inner core, under identical heating condition, heating speed is faster.
The thickness of the preferred plain film 10 and the corrugated plate 11 is 0.04-0.06mm.
In another technical solution, the insulating layer be one of ceramic coating, oxide skin(coating) or aln layer,
Or successively coat several, wherein the ceramic coating with a thickness of 0.005-0.1mm, the oxide skin(coating), described or nitridation
The thickness of aluminium layer is 0.0002-0.005mm.Using this technical solution, the insulating layer be ceramic coating, oxide skin(coating),
Or one of aln layer or any two or three set-up mode successively coated, if it is the insulating layer of single material
When, first, the thermal coefficient of conventional siderochrome aluminium foil strip be about 63W/mK, specific heat capacity is about 490J/kg DEG C, and ceramic coating
Thermal coefficient is lower than the thermal coefficient of siderochrome aluminium foil strip, and the specific heat capacity of ceramic coating is approximately 850J/kg DEG C, is greater than siderochrome aluminium foil
The specific heat capacity of band, so the heat transfer effect of plain film 10 and corrugated plate 11 with ceramic coating, which is lower than, does not cover ceramic coating
Plain film 10 and corrugated plate 11, heating properties have certain decline, control ceramic coating with a thickness of 0.005-0.1mm, can
While guaranteeing ceramic coating insulating properties, the heating speed of metallic carrier inner core caused by the coating due to ceramic coating is avoided
Excessive descent, reduce ceramic coating and add influence for metallic carrier inner core heating properties；The second, oxide skin(coating) can be
Using oxide skin(coating) made from high temperature oxidation process, since the high characteristic of the surface aluminium content of siderochrome aluminium foil strip material is (if iron
The aluminium content of chromium aluminium foil strip basis material is about 5.5%, and surface aluminium content can achieve 20% or so after measured), utilize the spy
Property, using high temperature oxidation process, make one layer of oxide skin(coating) of formation on 11 surface of plain film 10 and corrugated plate, the main component of oxide
It is aluminium oxide, chromium oxide and the iron oxide being electrically insulated, the oxide coating close structure and siderochrome aluminium foil strip substrate combinating strength
Height, not easily to fall off, fine and close oxide skin(coating) can effectively prevent siderochrome aluminium foil strip from further aoxidizing, and can play well absolutely
Edge effect, and the thin heat-transfer rate of coating is fast, very small for the electric heating performance influence of metallic carrier inner core, production cost is low, applies
Thickness degree is easy to control, production method cleanliness without any pollution, and if needing catalyst layer on later period insulating layer, can be in oxide
Catalyst transition zone is directly coated on layer, has no effect on the coating of catalyst layer；Third, oxide skin(coating) can be to utilize chemical oxygen
Oxide skin(coating) made from agent, chemical oxidizing agent can be nitric acid, hydrofluoric acid and oxalic acid etc., chemical oxidizing agent formation oxide skin(coating)
Anodic oxidation can also be cooperated to be used together, form the more efficient of oxide layer, preferably utilize oxygen made from chemical oxidizing agent
Compound layer with a thickness of 0.0005-0.005mm, formed the oxide of oxide skin(coating) main component be the aluminium oxide of electrical isolation,
Chromium oxide and iron oxide have the similar characteristic using oxide skin(coating) made from high temperature oxidation process；4th, aln layer can
Think and formed using pyroreaction technology on siderochrome aluminium foil strip surface, aln layer has good insulation performance, with matrix knot
It closes securely, and the thin heat-transfer rate of coating is fast, it is very small for the electric heating performance influence of metallic carrier inner core, and aln layer is being made
Surface will form micron-sized sheet and needle-shaped protrusion in standby process, if subsequent coated catalyst layer, after being conducive to raising
The firmness of continuous catalyst coat；The set-up mode successively coated if it is any two or three can effectively combine two
The insulation advantage of kind or three kinds of insulating layers, comprehensive regulation insulating layer performance, in summary, the electrically heated pass of metallic carrier inner core
Key index is to guarantee to ensure heating speed while insulation effect, and ceramic coating, oxide skin(coating) or aln layer insulating layer are set
Above-mentioned requirements can be met well by setting.
In another technical solution, described can be used for electrically heated metallic carrier, further includes: central electrode 2, it is described
One end of plain film 10 and the corrugated plate 11 is electrically connected and is fixedly arranged on the central electrode 2, and is axis progress with central electrode 2
Winding；
At least one external electrode 3, the number of the external electrode 3 are equal to the group number of the carrier-pellet, one group of carrier-pellet it is flat
The free end of piece 10 and corrugated plate 11 is fixedly arranged on an external electrode 3, and with the dispatch from foreign news agency electrical communication.Using this technical side
One end of case, the plain film 10 and the corrugated plate 11, which is electrically connected, to be fixedly arranged on the central electrode 2, and affixed mode can be with
For welding, in order to make the plain film being soldered on central electrode 2 10 and corrugated plate 11 be electrically connected with the central electrode 2, Ke Yixian
Plain film 10 and corrugated plate 11 to be welded with central electrode 2, the later period re-forms insulating layer, it can also be initially formed insulating layer, then
The insulating layer of weld is removed and carries out welding electric connection again, if metallic carrier inner core includes at least two groups of carrier-pellets, two groups of loads
Preferably it is arranged at equal intervals between body piece, setting can make the length of at least two groups carrier-pellets approximately uniform at equal intervals, and then make plain film
10 is close with the resistance of corrugated plate 11, and calorific value is close, makes to heat more uniform.In another technical solution, the center
Electrode 2 is one of hollow tube or solid tube body.Using this technical solution, central electrode 2 is set as tubulose, but
Heated more uniformly the central electrode 2 that hollow tube is arranged can be effectively reduced the thermal capacity of central electrode 2 itself, improve
Heating rate.
In another technical solution, described can be used for electrically heated metallic carrier, further includes: shell 4, the metal
Carrier inner core cover is loaded in the shell 4.Using this technical solution, shell 4 is played fixed and is protected for metallic carrier inner core
The side wall of the effect of shield, the shell 4 can be equipped with the hole body passed through for external electrode 3, convenient for the installation of whole device, the shell
4 circumferential direction can cover insulating layer, further increase the insulation effect of entire metallic carrier itself.
It is wide along sheet body on 10 lateral surface of plain film and on 11 lateral surface of the corrugated plate in another technical solution
It spends direction interval and suppresses at least one groove, the groove is arranged along pellet length direction, and metallic carrier inner core is 10 He of plain film
Corrugated plate 11 is wound, and the groove of adjacent plain film 10 and corrugated plate 11 is engaged fixation and forms, wherein the longitudinal cross-section of the groove
For nearly trapezoidal or rectangle；Using this technical solution, fastened by nearly ladder or rectangular recess, structure is simple and stability is good.
In another technical solution, the length of the shell 4 be slightly larger than or equal to the metallic carrier inner core length
Degree, 4 both ends of shell are installed with fixed frame, and the fixed frame can be the frame of cross, M shape or other patterns such as netted
Body, to fix metallic carrier inner core, fixed frame is for gas to pass through while being mainly used for fixed.Using this technical solution, gold
Belonging to carrier inner core can be effectively fixed in shell 4 by cross or rice cabinet frame, and shell 4 is and metallic carrier inner core at this time
Compatible tubular.
In another preferred technical solution, as Figure 7-8, the shell 4 includes:
Outer cylinder 5 has internal thread cylindrical barrel for one end, and the other end is along the direction coaxial communication far from outer cylinder 5
It is installed with round table-like horn mouth 50, the one end of the horn mouth 50 far from outer cylinder 5 is connected to discarded gas outlet to be processed；
Inner cylinder 6, coaxial fixing sleeve are set in the outer cylinder 5, to form circulate for exhaust gas first between the outer cylinder 5
Channel 60, the inner cylinder 6 close to the horn mouth 50 one end sealed set, close into the one of horn mouth 50 in the inner cylinder 6
End is circumferential to be arranged with the first baffle frame 61, and the inner cylinder 6 is provided at circumferentially spaced a plurality of sliding slot along it, and a plurality of sliding slot is along the inner cylinder
6 length sides are arranged and are respectively positioned on the first baffle frame 61 between the one end of the inner cylinder 6 far from the horn mouth 50, described
Four support bases are set along its length in inner cylinder 6, and four support bases are equally circumferentially spaced along inner cylinder 6；
It shrinks and intersects cylinder 7 comprising the parcel 70 of rectangle, wherein a long side edge interval is fixed along the parcel 70
The first cross bar 71, along the second fixed cross bar 72 of another long side edge interval of the parcel 70, wherein described first
Cross bar 71 and the second strip cross bar are adjacent one by one (according to one first along the extended line of 70 width direction of parcel
The extended line of cross bar 71 and second cross bar 72 is disposed adjacent) parcel 70 described in equal part, first cross bar 71
It is arranged in a crossed manner with second cross bar 72, and the end for passing through multiple first cross bars 71 of the second cross bar 72 is fixed
First sliding block 73, second sliding block 74 fixed across the end of multiple second cross bars 72 of the first cross bar 71, after winding
Metallic carrier inner core is placed in contraction and intersects in cylinder 7, and pullling the first sliding block 73 and the second sliding block 74 keeps the tightening of metallic carrier inner core solid
It is fixed, the first sliding block 73 and the second sliding block 74 are set in corresponding sliding slot, intersection cylinder 7 will be shunk and metallic carrier inner core is same
Axle sleeve is set in the supporting and space that 6 four support bases of inner cylinder are formed, and the contraction intersects cylinder 7 close to the horn mouth 50
One end abutted with the first baffle frame 61, it is described to shrink second for intersecting and being formed between cylinder 7 and the inner cylinder 6 for discarded circulation
Channel 75；
Connection component 8 comprising one end has the externally threaded tubular coupling tube to match with 5 internal screw thread of outer cylinder
80, the other end coaxial sleeve of the coupling tube 80 sets out tracheae 81, and the escape pipe 81 is externally threaded close to the coupling tube 80
One end is equipped with the second baffle frame 82, when the coupling tube 80 is spirally connected with the outer cylinder 5 sealing, the second baffle frame 82 with
The other end of the end abutment of the metallic carrier heart, the escape pipe 81 is located at outside the coupling tube 80, is passed through with discharge
The gas of metallic carrier inner core；
Wherein, the area of metallic carrier inner core longitudinal cross-section, the area of 6 longitudinal cross-section of the inner cylinder, the outer cylinder 5
The diameter ratio of the area of 81 longitudinal cross-section of the area of longitudinal cross-section and the escape pipe is 1:2:3:1, the inner cylinder 6 and described
Intersection cylinder 7 is shunk to be made of heat-barrier material.Using this technical solution, inner cylinder 6 be can choose through support rod or support frame
The mode of supporting welding is fixed in outer cylinder 5, one end opening-like setting of the outer cylinder 5 far from the horn mouth 50, and inner cylinder 6 is separate
One end of the horn mouth 50 is openning shape, the shell 4 is set as multilayered cylindrical, and first, the first access alternate path sets
It sets in the case where avoiding exhaust gas circulation unsmooth, it is effective to extend discarded circulation path, abundance is provided for metallic carrier inner core
Working time, to improve the heating effect of metallic carrier inner core；Secondly, discarded to pass through the flowing in the first access and alternate path
Sufficient preheating has been carried out in the process, and while avoiding energy waste, the further exhaust gas that shortens is heated to predetermined temperature
Time improves the heating effect of metallic carrier inner core；Further, the inner cylinder 6 and the contraction intersect cylinder 7 by heat-barrier material system
At the heat source and heat aggregation, increase for effectively saving metallic carrier inner core heat dynamics to exhaust gas；Intersect cylinder finally, shrinking
7 setting can effectively tighten metallic carrier inner core on the basis of not influencing metallic carrier this body structure of inner core
It is fixed.
In another preferred technical solution, the escape pipe 81 one end and the coupling tube equipped with second shelves frame
80, with setting to form annular accommodating chamber 9 by ring network envelope between externally threaded one end, fill high temperature resistant stone in annular accommodating chamber 9
Ying Mian enters second channel 75 by accommodating chamber 9 by the exhaust gas of first passage 60, by holding using this technical solution
Receive chamber 9 when, the setting of silica wool can effectively shut off impurity, wherein predominantly carbon particle, further avoid carbon particle for
The influence of metallic carrier inner core extends the service life of metallic carrier inner core, meanwhile, connection component 8 uses the side being readily disassembled
Formula, silica wool are equally conveniently replaceable, and effectively save cost.
In another technical solution, the plain film 10 and the circumferentially deposited of the corrugated plate 11 for being laid with insulating layer have
Catalyst.Using this technical solution, as the application of motor-vehicle tail-gas catalytic converter, if catalysis is not covered outside insulating layer
Agent, whole device can cooperate catalytic converter to work, preheat to tail gas, and then the tail gas after heating is transitted to catalysis
Converter improves the working efficiency of catalytic converter, but it exists since catalyst reaction needs catalyst itself to have one
Fixed initiation temperature, this just needs the tail gas after heating to carry out the effect that a heat is transmitted again to catalyst, and directly exhausted
Edge layer circumferentially covers catalyst, and the heating of metallic carrier inner core, while heating tail gas, heatable catalytic is connect, and catalyst can be direct
Be rapidly achieved initiation temperature, convert indirect heating to and directly heat, effectively shorten motor vehicle cold start when keep catalyst quick
The time of ignition.Catalyst can work as metallic carrier as the cracker application of cracking and catalyzing for methanol cracking catalyst simultaneously
When electrified regulation, metal inside is brought rapidly up, while heating methanol catalyst for cracking, can reach cracking first within a very short time
The temperature of alcohol solves to need the requirement in short time dissociated methanol.
Wherein, when metallic carrier inner core includes one group of carrier-pellet, such as Fig. 1, shown in Fig. 4, wherein corrugated plate 11 is not in Fig. 4
It shows, one end of a plain film 10 and a corrugated plate 11 is weldingly fixed on central electrode 2, starts to roll up with central electrode 2
Around, it is fixed at the end of winding, the end of plain film 10 and corrugated plate 11 is welded and fixed jointly onto one piece of external electrode 3, will be wound
Good metallic carrier inner core, central electrode 2 and external electrode 3 is fitted into shell 4 jointly, and external electrode 3 is drawn outside shell 4,
?.
When metallic carrier inner core includes two groups of carrier-pellets, such as Fig. 2, shown in Fig. 5, two groups of carrier-pellet intervals are arranged, and preferably
The fixed point line of two groups of carrier-pellets crosses the central axes of central electrode 2, and two plain films 10 and two corrugated plates 11 are welded and fixed
On central electrode 2, winding is started with central electrode 2 and is fixed, at the end of winding, by the plain film 10 and ripple of one group of carrier-pellet
The end of piece 11 is welded and fixed jointly onto one piece of external electrode 3, and the plain film 10 of another group of carrier-pellet and the end of corrugated plate 11 are total
With being welded and fixed on another piece of external electrode 3, the metallic carrier inner core, central electrode 2 and external electrode 3 of winding are filled jointly
Enter in shell 4, electrode is drawn outside carrier.
When if metallic carrier inner core includes three groups and the above carrier-pellet, preferably three groups and the above carrier-pellet interval are arranged, and
It is preferred that three groups and the above carrier-pellet are arranged at equal intervals, when for three groups, such as Fig. 3, shown in Fig. 6, wherein whole corrugated plates in Fig. 6
11 are not shown, by all plain films 10 and all corrugated plates 11 according to being weldingly fixed on central electrode 2 a group by a group, with center
Electrode 2, which starts winding, to be fixed, and at the end of winding, the end of the plain film 10 of one group of carrier-pellet and corrugated plate 11 is corresponded common
It is welded and fixed onto one piece of external electrode 3, the metallic carrier inner core, central electrode 2 and external electrode 3 of winding is packed into jointly outer
In shell 4, electrode is drawn outside carrier；
No matter metallic carrier inner core includes several groups of carrier-pellets, the positive and negative anodes of central electrode 2 and external electrode are not wanted
It asks, can be central electrode 2 and connect anode, all external electrodes 3 are connected to a cathode, and it is also possible to central electrode 2 and connects cathode,
All external electrodes 3 are connected to an anode and belong between plain film 10 and corrugated plate 11 in this way for same metallic carrier inner core
Parallel relationship, the metallic carrier inner core of same size, the resistance for the metallic carrier inner core being made of two groups of carrier-pellets are by one group
0.25 times of the metallic carrier inner core resistance of carrier-pellet composition, the metallic carrier inner core being made of one group of carrier-pellet is relative to by two
The metallic carrier inner core of group carrier-pellet composition is conducive to high voltage heating, and the metallic carrier inner core being made of two groups of carrier-pellets is conducive to
Low-voltage heating, wherein same size metallic carrier inner core is except carrier-pellet group number difference, remaining qualifications is equivalent, and
The equal length of the corrugated plate 11 and plain film 10 that use, the metallic carrier inner core by three groups of carrier-pellets and composition described above is similar, together
Reason conversion；
Wherein, need in addition illustrate, metallic carrier inner core includes that there is also positive and negative anodes to be connected to two for two groups of carrier-pellets
On external electrode 3, such resistance and heating efficiency are equivalent to single group winding-structure, i.e., different electrode connection mode resistance is different only
It will affect the difference of resistance, in this way by different electrode connection modes, can quickly adjust metallic carrier according to actual needs
Resistance, increase the applicability of metallic carrier.
<embodiment 1>
Central electrode 2 is hollow tube, is wound using one group of corrugated plate 11 and flat plate, and it is 70mm that diameter, which is made,
Metallic carrier inner core is directly set in shell 4 after winding, wherein shell 4 is cylindric and covers insulating layer, and shell 4 is straight
Diameter is 72mm, and the length of shell 4 and central electrode 2, metallic carrier inner core is 60mm, and plain film 10 and corrugated plate 11 are by siderochrome
Aluminium foil strip is suppressed, and siderochrome aluminium foil strip is respectively provided with insulating layer on corrugated plate 11 and flat plate, insulating layer is with a thickness of 0.04mm
Using oxide skin(coating) made from high temperature oxidation process, thickness of insulating layer 0.0025mm, central electrode 2 connects anode, external electrode 3
Connect cathode.
<embodiment 2>
Central electrode 2 is solid tube body, is wound using one group of corrugated plate 11 and flat plate, and it is 70mm that diameter, which is made,
Metallic carrier inner core is directly set in shell 4 after winding, wherein shell 4 is cylindric and covers insulating layer, and shell 4 is straight
Diameter is 72mm, and the length of shell 4 and central electrode 2, metallic carrier inner core is 60mm, and plain film 10 and corrugated plate 11 are by siderochrome
Aluminium foil strip is suppressed, and siderochrome aluminium foil strip is respectively provided with insulating layer on corrugated plate 11 and flat plate, insulating layer is with a thickness of 0.04mm
Using oxide skin(coating) made from high temperature oxidation process, thickness of insulating layer 0.0031mm, central electrode 2 connects anode, external electrode 3
Connect cathode.
<embodiment 3>
Central electrode 2 is hollow tube, is wound using two groups of corrugated plates 11 and flat plate, and it is 70mm that diameter, which is made,
Metallic carrier inner core is directly set in shell 4 after winding, wherein shell 4 is cylindric and covers insulating layer, and shell 4 is straight
Diameter is 72mm, and the length of shell 4 and central electrode 2, metallic carrier inner core is 60mm, and plain film 10 and corrugated plate 11 are by siderochrome
Aluminium foil strip is suppressed, and siderochrome aluminium foil strip is respectively provided with insulating layer on corrugated plate 11 and flat plate, insulating layer is with a thickness of 0.04mm
Using oxide skin(coating) made from high temperature oxidation process, thickness of insulating layer 0.0023mm, central electrode 2 connects anode, external electrode 3
Connect cathode.
<embodiment 4>
Central electrode 2 is hollow tube, is wound using one group of corrugated plate 11 and flat plate, and it is 40mm that diameter, which is made,
Metallic carrier inner core is directly set in shell 4 after winding, wherein shell 4 is cylindric and covers insulating layer, and shell 4 is straight
Diameter is 42mm, and the length of shell 4 and central electrode 2, metallic carrier inner core is 60mm, and plain film 10 and corrugated plate 11 are by siderochrome
Aluminium foil strip is suppressed, and siderochrome aluminium foil strip is respectively provided with insulating layer on corrugated plate 11 and flat plate, insulating layer is with a thickness of 0.04mm
Using oxide skin(coating) made from high temperature oxidation process, thickness of insulating layer 0.0019mm, central electrode 2 connects anode, external electrode 3
Connect cathode.
<embodiment 5>
Central electrode 2 is hollow tube, is wound using two groups of corrugated plates 11 and flat plate, and it is 118mm that diameter, which is made,
Metallic carrier inner core is directly set in shell 4 after winding, wherein shell 4 is cylindric and covers insulating layer, and shell 4 is straight
Diameter is 120mm, and the length of shell 4 and central electrode 2, metallic carrier inner core is 60mm, and plain film 10 and corrugated plate 11 are by siderochrome
Aluminium foil strip is suppressed, and siderochrome aluminium foil strip is respectively provided with insulating layer on corrugated plate 11 and flat plate, insulating layer is with a thickness of 0.04mm
Using oxide skin(coating) made from high temperature oxidation process, thickness of insulating layer 0.0036mm, central electrode 2 connects anode, external electrode 3
Connect cathode.
<embodiment 6>
Central electrode 2 is hollow tube, is wound using two groups of corrugated plates 11 and flat plate, and it is 118mm that diameter, which is made,
Metallic carrier inner core is directly set in shell 4 after winding, wherein shell 4 is cylindric and covers insulating layer, and shell 4 is straight
Diameter is 120mm, and the length of shell 4 and central electrode 2, metallic carrier inner core is 60mm, and plain film 10 and corrugated plate 11 are by siderochrome
Aluminium foil strip is suppressed, and siderochrome aluminium foil strip is respectively provided with insulating layer on corrugated plate 11 and flat plate, insulating layer is with a thickness of 0.04mm
Using oxide skin(coating) made from high temperature oxidation process, thickness of insulating layer 0.0033mm, central electrode 2 connects anode, external electrode 3
Connect cathode.
<result test experience>
1, insulating layer is aln layer, measures the plain film 10 of one group of carrier-pellet and the resistance value of corrugated plate 11, and use one
This group of plain film and corrugated plate are wound the resistance value of measurement metallic carrier inner core, test discovery by the mode of group carrier-pellet winding
The resistance value of the metallic carrier inner core resistance value resistance difference in parallel with plain film 10 before winding and corrugated plate 11 is formed after winding
Absolute value is smaller, in the error range of measuring and calculation, illustrates that insulating layer coats, can play good insulation effect.
2, embodiment 1-6 is prepared for the carrier of three kinds of diameters respectively, and the purpose of different-diameter is to be applied to different dresses
It sets, wherein 4 diameter of shell is that the metallic carrier of 42mm is mainly used on motorcycle, and the metal that 4 diameter of shell is 72mm carries
Body is mainly used on cracker, and 4 diameter of shell is that the metallic carrier of 120mm is mainly used on gasoline car or diesel vehicle, point
Not Jian Ce the method for embodiment 4-9 prepare the electric heating performance of metallic carrier, the data specifically such as table 2 can be obtained:
Table 2
As seen from table, the heating used time of embodiment 5 is longer than the heating used time of embodiment 4, is primarily due to embodiment 4
Central electrode 2 is hollow tube body, and hollow tube has smaller thermal capacity for solid tube body；Embodiment 6 is opposite
For embodiment 4, the heating used time is obviously shortened, and it is lower illustrate that metallic carrier that two groups or multichip carrier piece are wound can be used
Voltage reach faster heating speed；Embodiment 7 is for embodiment 4, embodiment 6 is equal for embodiment 8
With faster heating speed, illustrate that diameter is smaller, identical voltage heats, and the heating speed of metallic carrier is faster；Embodiment 9
The used time is shorter for embodiment 8, illustrates that metallic carrier heating speed can effectively be accelerated by increasing voltage.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (9)
1. can be used for electrically heated metallic carrier characterized by comprising
Metallic carrier inner core comprising at least one set of carrier-pellet, every group of carrier-pellet include can electrically heated plain film and corrugated plate,
The metallic carrier inner core is that sequentially winding is solid in the way of a piece of corrugated plate of a piece of plain film for the plain film and the corrugated plate
Surely it forms, wherein the circumferential direction of at least one of which sheet body is covered with insulating layer in arbitrary neighborhood plain film and corrugated plate.
2. can be used for electrically heated metallic carrier as described in claim 1, which is characterized in that the plain film and the corrugated plate
It is suppressed by siderochrome aluminium foil strip, wherein the thickness of the plain film and the corrugated plate is 0.03-0.1mm.
3. can be used for electrically heated metallic carrier as claimed in claim 2, which is characterized in that the insulating layer is that ceramics apply
One of layer, oxide skin(coating) or aln layer successively coat several, wherein the ceramic coating with a thickness of
0.005-0.1mm, the oxide skin(coating), the aln layer thickness be 0.0002-0.005mm.
4. can be used for electrically heated metallic carrier as described in claim 1, which is characterized in that further include: central electrode, it is described
One end of plain film and the corrugated plate is electrically connected and is fixedly arranged on the central electrode, and is wound by axis of central electrode；
At least one external electrode, the number of the external electrode are equal to the group number of the carrier-pellet, the plain film and wave of one group of carrier-pellet
The free end of line piece is fixedly arranged on an external electrode, and is electrically connected with the external electrode.
5. can be used for electrically heated metallic carrier as claimed in claim 4, which is characterized in that the central electrode is hollow tube
One of body or solid tube body.
6. can be used for electrically heated metallic carrier as described in claim 1, which is characterized in that further include: shell, the metal
Carrier inner core cover is loaded in the shell.
7. can be used for electrically heated metallic carrier as claimed in claim 6, which is characterized in that on the plain film side and institute
It states and suppresses at least one groove along blade width direction interval on corrugated plate side, the groove is arranged along pellet length direction,
Metallic carrier inner core is that plain film and corrugated plate are wound, and the groove of adjacent plain film and corrugated plate is engaged fixation and forms, wherein described
The longitudinal cross-section of groove is nearly trapezoidal or rectangle.
8. can be used for electrically heated metallic carrier as claimed in claim 6, which is characterized in that the length of the shell is slightly larger than
Or the length equal to the metallic carrier inner core, the shell both ends are installed with fixed frame, to fix metallic carrier inner core.
9. can be used for electrically heated metallic carrier as described in claim 1, which is characterized in that the plain film and the corrugated plate
Circumferentially deposited have catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820685828.9U CN208718765U (en) | 2018-05-09 | 2018-05-09 | It can be used for electrically heated metallic carrier |
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|---|---|---|---|
| CN201820685828.9U CN208718765U (en) | 2018-05-09 | 2018-05-09 | It can be used for electrically heated metallic carrier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661762A (en) * | 2018-05-09 | 2018-10-16 | 单利 | It can be used for electrically heated metallic carrier and preparation method thereof |
| CN110206622A (en) * | 2019-06-04 | 2019-09-06 | 亿达天地环保技术股份有限公司 | Double-layer sleeve structure electric heating emission-control equipment |
-
2018
- 2018-05-09 CN CN201820685828.9U patent/CN208718765U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661762A (en) * | 2018-05-09 | 2018-10-16 | 单利 | It can be used for electrically heated metallic carrier and preparation method thereof |
| CN108661762B (en) * | 2018-05-09 | 2021-04-09 | 单利 | Metal carrier capable of being used for electric heating and manufacturing method thereof |
| CN110206622A (en) * | 2019-06-04 | 2019-09-06 | 亿达天地环保技术股份有限公司 | Double-layer sleeve structure electric heating emission-control equipment |
| CN110206622B (en) * | 2019-06-04 | 2021-07-27 | 亿达天地环保技术股份有限公司 | Electric heating waste gas treatment device with double-layer sleeve structure |
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