CN1161426A - Catalyst support member - Google Patents
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- CN1161426A CN1161426A CN 96121177 CN96121177A CN1161426A CN 1161426 A CN1161426 A CN 1161426A CN 96121177 CN96121177 CN 96121177 CN 96121177 A CN96121177 A CN 96121177A CN 1161426 A CN1161426 A CN 1161426A
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Abstract
A catalyst support member for a lighter and the like comprises a base made of heat-resistant material such as a nickel-chrome alloy wire or the like, and a mixed powder comprising a catalyst carrier and a strength maintaining material. The mixed powder is fusion bonded to the base with a vitreous powdered fusion bonding material. The catalyst carrier is essentially composed of metal oxide powder such as aluminum oxide powder, titanium oxide powder or the like. The strength maintaining material is essentially composed of a metal oxide powder, such as aluminum oxide powder, titanium oxide powder or the like, and has a diameter smaller than that of the catalyst carrier.
Description
The present invention relates to a kind of catalyst support member, it is used for lighting igniting once more and other purpose of the igniter of cigarette or analog and the employed mix flare burner of heating process, burner.
Above-mentioned igniter or mix flare burner are used widely.Particularly many such cigar lighters are the flame combustion pattern, make gasifying liquefied gas and enter atmosphere by nozzle, and burning when mixing with auxiliary air, thereby formation is as the flare of candle.In some cases, igniter can be gone out by wind when outdoor application.For addressing the above problem, catalyst ignitor has been proposed, in this igniter, used the combustion method of the burner that permission mixes with primary air, and will be arranged in the top of combustion tube as the catalytic component of platinum or analog.In this catalyst ignitor, primary air and combustion gas mixing make to produce internal-combustion in the combustion tube, and the mixture of a part of primary air and combustion gas carries out catalytic combustion, other part is mixed with air inside and outside the combustion tube, forms the burning that flame is finished burner like this.Even the flame of burner combustion is gone out by wind,, thereby produce the windproof igniter that can not gone out by wind and can not extinguish owing to the previous heated catalytic component of burning is lighted once more.
Therefore, the present invention relates to a catalyst converter support member, it can replace traditional platinum filament, and it to have a cost competitive and have higher mechanical strength, to be fit to support the catalytic component that is used for igniter or analog.
Publication number is that 60 (1985)-101419 Japanese unexamined patent discloses a kind of traditional catalyst ignitor, wherein the catalysis device is disposed near the flame export, when being gone out by wind, can light automatically flame, and not needing other ignition procedure again, this is because the temperature of employed catalyst converter has been elevated to ignition temperature at least.
Such structure makes the spirality platinum filament that temperature raise even still can contact with fuel gas after flame is gone out by wind, so that igniting once more.
But, using igniter or the mix flare burner price height of platinum filament as catalyst, this is that catalyst has just taken most of manufacturing cost, thereby has increased the totle drilling cost of igniter because platinum itself is relatively more expensive.Therefore, need replace platinum filament to make this catalyst ignitor and catalyst mix flare burner with the competitive catalyst spare of cost.
According to the present invention, be used to the basic structure of the catalyst spare that rekindles by use, contain the catalyst consumption of platinum with minimizing, wherein use heat proof material as constituting spiral helicine basic core as the nichrome wire.In addition, with as the metal oxide powder of aluminium oxide, titanium oxide or analog as catalyst carrier, the melting adhered material of glass powdery is joined in the catalyst carrier, to form a kind of mixture.Thereby this mixture at high temperature melted bond on the basic core.In addition, to contain catalytic component, platinum solution chlorate as platinum spreads upon on the surface of catalyst carrier, and catalyst carrier bonds on the basic core with the adhesives that melts, then at high temperature carry out drying and thermal decomposition, so that with catalytic component, as platinum powder or analog on the surface attached to catalyst carrier, thereby formed the catalyst spare that is installed on the igniter.
If make a catalyst spare with above-mentioned catalyst support member, its thermal vibration that may be subjected to causing so by igniting, in using the igniter process since fall generation vibration, cause by piezo-electric ignition from the mechanical oscillation of piezo-electric device and influence by the caused mechanical oscillation of lid switch is arranged at igniter under the situation of lid.Therefore, catalyst support member must be bonded on the basic core securely, comes off thereby the catalyst support member that contains catalyst component can not caused owing to above-mentioned various vibrations.
In catalyst support member, with melt and dissolved adhesives, as glass dust the burning powder is bonded on this support member simply, probably durability issues can appear, for example, because peeling off of adhesive strength difference and catalytic component, may cause the reduction of the catalyst function that can not light once more to aggravate.
Therefore, the object of the present invention is to provide a kind of catalyst support member, improve the adhesive strength of catalyst carrier and basic core with metal oxide powder, to improve its durability.
Catalyst support member of the present invention comprises:
One by heat proof material, the basic core of making as nichrome wire or analog; With
Mixed-powder, it comprises basically by metal oxide powder, catalyst carrier as alumina powder, titanium dioxide powder or analog composition, and basically by metal oxide powder, the intensity of forming as alumina powder, titanium dioxide powder or analog keeps material, wherein intensity keeps the diameter of the diameter of material powder less than described catalyst carrier
Wherein with the melting adhered material of glass dust powder with the mixed-powder fusion be bonded on the basic core.
Catalyst carrier can be made up of alumina powder basically, and intensity keeps material can be made up of titanium dioxide powder basically.In addition, alumina powder can either be used for catalyst carrier, also can be used in intensity and keeps material.
When using aluminium oxide as catalyst carrier, the diameter of alumina powder preferably drops in the 0.05-1 micrometer range, and surface coefficient is 8m
2/ g or bigger.When keeping material with titanium oxide as intensity, the diameter of titanium dioxide powder is preferably 0.8 micron or less than 0.8 micron, and is preferably in about 0.2 micron.When keeping material with aluminium oxide as intensity, the diameter of alumina powder is preferably 0.2 micron or less than 0.2 micron, is preferably in about 0.0 5 microns.
Catalyst support member is to constitute like this, so that oarse-grained catalyst carrier and short grained intensity are bonded on the basic core of catalyst support member with keeping the mixtures of material fusion, and with catalyst component, on the surface of platinum attached to catalyst carrier.Catalyst support member is arranged near the crater of igniter or analog.Attached to the lip-deep catalyst component of catalyst carrier exist with the platinum filament situation is arranged under identical catalytic reaction, even after flame is gone out by wind, can automatically igniter be lighted once more.
Good and support functions many catalyst components are provided on oarse-grained catalyst carrier surface, provide the needed function of lighting once more by the characteristic of catalyst.
Keep material to mix catalyst carrier and the intensity littler than catalyst carrier particle, the space that reaches between catalyst carrier and the catalyst carrier between basic core and the catalyst carrier is diminished, thereby increase contact area and adhesive strength, its result can prevent catalyst carrier because heat is repeatedly shaken and mechanical oscillation come off from basic core, and has the ability of lighting once more for a long time.
A large amount of supported catalyst components can make the catalysis of catalyst spare and catalytic capability more stable as platinum.But when supported catalyst component and the catalyst carrier of using are separated, and the catalyst carrier of support catalyst component is when coming off, and the life-span of catalyst spare just reduces.Therefore, in the practical application of igniter or analog, need, and want suitably attached to the lip-deep catalyst component quantity of catalyst carrier with catalyst carrier and basic core strong bond.
According to catalyst enabling capabilities and adhesive strength, mainly the particle diameter of the catalyst carrier that is made of aluminium oxide is preferably in the 0.05-1 micron, is preferably in about 0.3 micron.If its diameter is less than these numerical value, the catalyst support performance will reduce so, if its diameter greater than these numerical value, adhesive strength will descend so.And mainly the surface coefficient that is made of aluminium oxide is 8m
2/ g or above catalyst carrier can provide better catalyst support performance.
As mentioned above, with the melting adhered material of glass powdery that catalyst carrier is melting adhered to basic core.Keep material to mix by the intensity that will form by short grained metal oxide powder basically, adhesive strength is improved, and adhesive strength is subjected to the influence that mixed intensity keeps material actual diameter size with adhesives.Short grained intensity keeps material can obtain result preferably.For example, be that 0.2 micron the effect that titanium oxide obtained is better than the effect of titanium oxide that is the 0.6-0.8 micron with diameter with diameter.In addition, diameter is suitable at the titanium oxide below 0.8 or 0.8 micron.Better than the effect that aluminium oxide obtained that with diameter is 0.22 micron with diameter 0.05 micron the effect that aluminium oxide obtained.Yet diameter is suitable at the aluminium oxide below 0.2 or 0.2 micron.
According to the present invention, by melting adhered material with the glass powdery, keep the mixed-powder of material melting adhered to basic wicking surface the intensity of large diameter catalyst carrier and minor diameter, firmly fix catalyst carrier to guarantee good durability, and provide good catalyst support performance, catalyst support member can reach with use the platinum filament situation under identical catalytic combustion, even the good function of lighting once more also can be provided when flame is blown out, the use amount of expensive platinum is reduced to floor level, aspect cost and the efficient catalytic function aspects have advantage.
Fig. 1 is an amplification sectional view, and it represents the basic structure of the catalyst support member among one of them embodiment of the present invention;
Fig. 2 A and 2B are front view, and it represents the structure of basic core and catalyst spare;
Fig. 3 is the longitudinal cross-section view of igniter, and this igniter has the catalyst spare that comprises catalyst support member of the present invention;
The cross sectional view of Fig. 4 for amplifying, the major part of the igniter that its expression is shown in Figure 3;
Fig. 5 is the mould bases stereogram that is used to dropping shock test usefulness;
Fig. 6 A and 6B are the key diagram of adhesive strength test;
Fig. 7 A, 7B and 7C are for representing the result's that experimental example 5 is obtained curve map;
Fig. 8 A, 8B and 8C are for representing the result's that experimental example 6 is obtained curve map;
Fig. 9 is the curve map of an example of expression alumina powder particle size distribution.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the amplification cross sectional view of an embodiment of catalyst support member of the present invention.Catalyst support member 2 comprises by heat proof material, the basic core of making as nichrome wire (below be called as nichrome wire) 3 is by keeping material 5 to combine making the catalyst carrier made by the metal oxide of powdery 4 melting adhered and be fixed on the outer surface of basic core 3 less than the intensity of also being made up of mealy metallic oxide of catalyst carrier 4 particle diameters the melting adhered material of glass powdery (glass dust) and its particle diameter.It is by metal oxide basically that catalyst carrier 4 and intensity keep material 5, constitute as the aluminium oxide of powdery, titanium oxide etc., the diameter of the metal oxide particle of these two kinds of powderies is different, so with catalyst, be arranged on the surface of catalyst carrier as platinum or analog, thus described catalyst assembly 1 (catalysis silk) below having formed.
The catalyst composition that is maintained on the catalyst support member 2 can be the rhodium that replaces the more cheap palladium of platinum or have high catalytic action, or other analog.In this case, use catalyst solution, as the alkaline moisture solution of palladium, rhodium or analog.Also can use the catalyst that mixes.
The example more specifically of the catalyst support member of igniter being used by evaluation test is described.
In catalyst support member 2, used a basic core 3 of spiral linearity as shown in Figure 2.This linearity base core 3 comprises that diameter is the nichrome wire (nickel is 80: 20 with the composition ratio of chromium) of 0.15 millimeter (about 40 millimeters long), and it is made up of a spiral part 3a and standing part 3b.The internal diameter of described spiral part 3a is 2.7 millimeters, totally four encloses, and pitch is 1 millimeter.The length of described standing part 3b is 1 millimeter, is to stretch out from the relative two ends of spiral part.
Make the material of catalyst carrier with alumina powder, and select various alumina powders to experimentize, these powder are produced with diverse ways, and they are in different size, and formed surface state is also different.Also select various titanium oxide and alumina powder to keep material 5, dry securely to guarantee the catalyst carrier on the basic core 3 as intensity.
Keep material 5 to mix catalyst backing material 4 and intensity with different ratios.Then mixed mixture with different blending ratios is mixed with glass dust as melting adhered material with different blending ratios.This glass dust comprises SiO
2(80.9%), B
2O
3(12.7%), Na
2O (4.0%), Al
2O
3(2.3%), K
2O (0.04%) and Fe
2O
3(0.03%).
3% moisture poly-vinyl alcohol solution is joined in the powder of mixing, be modulated into sticking mixture, and 3 milligrams of this sticking mixtures are coated on the spiral part 3a of basic core 3, at room temperature after the drying, placed it under 300 ℃ the temperature heating 15 minutes.Then, polyvinyl alcohol is thermal decomposited and vapors away.Remaining mixture heated 10 minutes under 1240 ℃ temperature, thereby kept material 5 to bond together mutually catalyst carrier 4 and intensity with glass dust, formed the catalyst support member 2 shown in Fig. 2 B.
The various catalyst spares 1 of the different components made from different blending ratios are arranged near the upper end of combustion tube 18 of gas lighter 10, and are arranged in the flame of internal-combustion state.The mechanical strength and the catalytic effect that are used for the actual needed catalyst spare of igniter or mix flare burner are measured.
The mensuration test of catalyst spare 1 comprises that the catalytic reaction that dropping shock is tested, bending strength is tested, adhesive strength is tested, occurred is tested, igniting is tested and the testing fatigue of lighting a fire once more for 1000 times once more when catalyst spare actual installation is on igniter.The concrete grammar and the result of every kind of test will be described below.
The present invention shows a catalyst spare example of structure that is installed on the igniter.Just as described above, catalyst support member 2 is to obtain like this, will be as the alumina powder with 0.3 micron diameter (γ crystal) of catalyst carrier 4, keep the alumina powder with 0.05 micron diameter (γ crystal) of material 5 and glass dust to distinguish by weight percentage 64% as intensity, 32% and 4% blending ratio mixes, and by polyvinyl alcohol being joined in the mixture modulation to be coated to diameter into about 3 milligrams sticking mixture be that 0.15 millimeter nickel filament is rolled into spiral winding (this coil outer diameter is 2.7 millimeters, pitch is 1 millimeter, the number of turns is 4) on the basic core 3 that forms, make it carry out drying at normal temperatures, under 300 ℃ temperature, heated 15 minutes then, so that remove polyvinyl alcohol, and under 1240 ℃ temperature, heated again 10 minutes, so that reach the bonding of fusion.
Catalyst spare 1 is to obtain like this, earlier catalyst spare 2 is immersed in 0.1% the platinum chloride acid solution, and heating 10 minutes under 800 ℃ temperature afterwards, and carry out four thermal decompositions platinum is deposited on the surface of catalyst support member 2.
Making required catalytic site firearm is that each catalyst spare 1 is fixed on igniter 10 combustion tubes upper end, and the speed of gas is adjusted to 30cc/min.
Fig. 3 is a longitudinal cross-section view with igniter of catalyst 1, and Fig. 4 is the amplification sectional view of an expression combustion tube structure.
The bottom of gas ignitor is provided with the box main body 11 of a storage of fuels gas.This box main body 11 is made by synthetic resin, and its bottom has connected a bottom 11a, and the sidewall sections 11b on around the box main body is integrally formed, and box main body stores high pressure fuel gas, as isobutane gas.
In the upper end of described box main body 11, fix the valve operation mechanism 12 of a band nozzle 13, fuel gas sprays from nozzle 13, and valve operation mechanism 12 is positioned at valve chamber 32.On the part up of nozzle 13, be provided with the combustion barrel 18 of the fuel gas of described nozzle 13 ejections of burning.The fuel burning of gas is by carrying out with the primary air mixed burning method in the combustion barrel, and wherein primary air is introduced into and mixes.
In the side of described valve operation mechanism 12, be provided with piezo-electric device 14, an operating parts 15 is arranged in the upper end of this piezo-electric device, it is controlling valve operation mechanism 12, and fuel gas is ejected, and 14 igniting of control piezo-electric device.Piezo-electric device 14, operating parts 15 and combustion barrel 18 are all supported by interior cover 16, and are fixed on the inside of box main body 11.Be provided with and be used for plug-type (cpush-pull) lid 17 and operating parts 15 on opening and closing combustion barrel 18 tops.Support member 17a is fixed on covers on 17, and be connected with box main body 11 by pin 21.Be arranged in support member 17a position up with two faces of support member 17a contact by moving part 22, it is used to keep the position of support member 17a opening and closing.
Use valve operation mechanism 12, with the nozzle tip ejection of gas from the band gas passage, the part of this nozzle 13 is connected with L type drive link 19 by the nozzle 13 that moves up for it.The middle part of drive link 19 is supported, and the other end by this driving control lever 19 contacts with push rod 15a it is freely rotated, and push rod 15a is fixed on the operating parts 15, and its starts and stop to be sprayed by the gas of nozzle 13 controls.
Nozzle 20 (see figure 4)s that have special diameter (as 50 a microns) aperture are installed in the top of nozzle 13, and this nozzle is fixed and is encased in the bottom of combustion barrel 18, fuel gas can high velocity jet in combustion barrel 18.
In addition, valve operation mechanism 12 is provided with a gas flow modulation filter course 23, and it is used to regulate the amount of burner oil gas, and this amount is adjusted to steady state value relatively at various temperatures approx.By a nail type stator, gas flow modulation filter 23 is fixed on the bottom of valve operation mechanism 12 under compressive state.Liquid gas in the case passes the core of porous core 33 with radial direction inflow filter around the filter, and is gasified.
The microstructure of filter course 23 is to be formed by the microporous polymer expanded material, this material internal micropore is crisscross staggered, it is used as the gas passage that the Small Holes by the contact point place communicates with each other, by temperature variant expansion and contraction, blind bore is used for compression and expanding gas flow channel, therefore, air-flow can be automatically adjusted with respect to variation of temperature.
In addition, as shown in Figure 4, combustion barrel 18 comprises the main body 25 and a combustion tube 26 that directly is connected with upwardly extending main body 25 that are positioned on its home position.The center that gas passage passes main body 25 enters its lower end, and the top of nozzle 13 is fixed on this lower end.Primary air groove 25a is located at the both sides of nozzle and is penetrating in the radial direction towards the open main body of following nozzle end.A vortex board 27 and a wire netting 28 have been installed in the upper end of main body 25.Vortex board 27 punching becomes the metal ring plate, so that produce eddy current in air-flow, thereby helps mixing of fuel gas and primary air.Wire netting 28 is made up of an endless metal silk screen, and it is used for stoping the backflow of flame.
The annular upper portion of primary air groove 25a on the main body 25 in the combustion tube 18 and 16 engagements of interior cover, and support by interior cover with combustion tube 26, electrode 29 and electrode holder 30 are fixed on the described combustion tube 26, in the outside of combustion tube 26, be provided with a lid 31, and combustion barrel 18 is fixing, formed a sub-assembly like this, it comprises piezo-electric device 14 and by the operating parts 15 that inner casing cover is lived, do as a whole in cover be fixed on the box main body 11, thereby finished the simple assembling of igniter.
Near combustion tube 26 upper ends of combustion barrel 18, be provided with a catalyst spare 1.The extended standing part 3b in the two ends of the spiral part 3a of this catalyst spare 1 is fixed on the annular solid identical with combustion tube 26 shapes, and described standing part 3b is diametrically opposed.Annular solid 6 is installed in the upper end of combustion tube 26, is provided with a cover 34 at the annular solid peripheral part.Catalyst spare 1 is fixed in the hole of combustion tube 26 upper end burner portions.
Above-mentioned gas igniter 10 is such structures, and when push spare 15, its depression bar 15a drives drive link 19 and rotates, nozzle 13 is raise, thus the ejection fuel gas.Negative pressure from the gas flow rate and the flow rate of nozzle 13 ejection produced makes primary air be introduced into from the primary air hole 25a that drives on the side, and with the combustion gas mixing of being sprayed.By after being used to stop the net 28 that flame refluxes, last mixture carries out disturbance once more by vortex board 27 to be mixed, and upwards by combustion tube 26.
Push spare 15 once more, start piezo-electric device 14, the high-tension electricity that is provided for discharging to electrode 29, thus light mist, and a part of flame is gone out the upper end of combustion barrel 18.The high temperature position of flames F exiting is to determine according to the mixing ratio of primary air and fuel gas and the flow velocity of mist, and catalyst spare 1 also is in the high temperature position of flames F exiting.
Flames F exiting is passed catalyst spare 1.When the catalyst spare 1 of combustion barrel 18 upper ends contacted with the high temperature place of flames F exiting, catalyst component promptly is heated to can carry out the high temperature of catalytic reaction or higher temperature, and flame enters red-hot state.Even flame is gone out by wind, because the temperature after catalyst spare 1 is heated is equal to or higher than the catalytic reaction temperature (about 600 ℃) that makes mist generation oxidizing fire, so mist can be lighted once more by catalyst spare 1, and without any need for the formality of lighting a fire once more, and its burning is continuous.In the ordinary course of things and since in ignition process operating parts 15 are continued operations, so fuel gas always be blown on the catalyst 1, thereby form continuous flames F exiting.
And when unclamp operation part 15, when the injection end of fuel gas and flame were extinguished, because the heat energy on the catalyst spare 1 is not too big, so its temperature descended rapidly, and the fuel gas of some leakages will can not lighted.
Although show the basic core 3 of helical structure in the above-described embodiment, but can make change, for example, the clavate base core of any radical can be arranged in parallel, maybe can use contact with flame that part of is the basic core of waveform.
In order to obtain catalyst carrier 4 (Al
2O
3) and intensity maintenance material 5 (TiO
2) the particle diameter characteristic, and carry out an experiment.Table 1 has been represented its result.Test method is described below.
Select with particle diameter is the catalyst carrier 4 that is formed by alumina powder of 0.05 micron, 0.3 micron or 1.0 microns, with the intensity maintenance material that is formed by titanium oxide that with particle diameter is 0.2 micron and 0.6-0.8 micron, and the various combinations of these materials are used for this experiment.The percentage by weight of its mixing is respectively the glass dust that 64% catalyst carrier (aluminium oxide), 32% intensity keep material (titanium oxide) and 4%.The drying of chlorination platinic acid and thermal decomposition number of times are four times.
Best experimental result is to be the catalyst carrier 4 that forms of 0.3 micron aluminium oxide and to be to draw the embodiment of the intensity maintenance material 5 that forms of 0.2 micron titanium oxide by particle diameter from using by particle diameter.
Carrying out this experiment is in order to obtain catalyst carrier 4 (Al
2O
3) the surface coefficient characteristic.Table 2 has shown and intensity maintenance material 5 (TiO
2) the resulting result in mixing back.
In this experiment, use by surface coefficient to be 8.9m
2/ g or 15.3m
2/ g, particle diameter are that the catalyst carrier that 0.3 micron aluminium oxide forms compares.
The result who is obtained from the alumina catalyst carrier that big surface coefficient is arranged is better.
Carrying out this experiment is in order to obtain catalyst carrier 4 (Al
2O
3) and intensity maintenance material 5 (Al
2O
3) the particle diameter characteristic.Table 3 has shown this result of experiment.
It is the catalyst carrier 4 that the aluminium oxide of 0.05 micron, 0.3 micron or 1.0 microns is formed that this experiment has been used by particle diameter, and particle diameter is that the intensity of 0.05 micron or 0.22 micron keeps material 5.
From using by particle diameter is that the result that obtained the sample of the catalyst carrier 4 formed of 0.3 micron aluminium oxide is better, is that the result that obtained the sample of the intensity maintenance material formed of 0.0 5 microns aluminium oxide is best from using by particle diameter.
Carrying out this experiment is in order to obtain catalyst carrier 4 (Al
2O
3) the surface coefficient characteristic.Table 4 has shown and intensity maintenance material 5 (Al
2O
3) the resulting result in mixing back.
In this experiment, use by surface coefficient to be 8.9m
2/ g or 15.3m
2The catalyst carrier 4 that the aluminium oxide of/g forms is as the situation of experiment 2.In this example, employed material equally all is an aluminium oxide.
It is better to have the result who is obtained the sample of catalyst carrier 4 of aluminium oxide of big surface coefficient from use.
Carrying out this experiment is in order to obtain the various characteristics of sample, so that with catalyst carrier 4 (Al
2O
3) and intensity maintenance material 5 (TiO
2) the mixing ratio of mixture be the basis, measure the effect of the dry number of times of chlorination platinic acid.Fig. 7 shows this result of experiment.
The catalyst carrier 4 that use is formed by 0.3 micron the aluminium oxide that big surface coefficient is arranged and be the intensity maintenance material 5 that 0.2 micron titanium oxide forms by particle diameter.The blending ratio of the percentage by weight by changing the former 64% the percentage by weight and the latter 32% or the former 32% percentage by weight and the latter 64% percentage by weight mixes the former with the latter.The glass dust of the percentage by weight with 4% mixes with above-mentioned two kinds of materials.
From having under the bigger situation of aluminium oxide blending ratio, dry more than twice or twice; Or under the less situation of aluminium oxide blending ratio, in the sample of dry catalyst carrier 4 more than four times or four times; And when dry number of times is identical, have in the sample of big aluminium oxide blending ratio, can be in catalytic reaction, light a fire and obtain result preferably aspect the percentage and the life-span of lighting a fire again again.
Experiment 6
Carrying out this experiment is in order to obtain the various characteristics of sample, so that with catalyst carrier 4 (Al
2O
3) and intensity maintenance material 5 (Al
2O
3) the mixing ratio of mixture be the basis, measure the effect of the dry number of times of chlorination platinic acid.Fig. 8 shows this result of experiment.
With particle diameter be 0.05 micron replace titanium oxide to be used as intensity than the aluminium oxide of granule keeping material 5.The blending ratio that adopts identical with the blending ratio of experiment in 5.Resulting trend is identical with above-mentioned experiment, and wherein the result who is obtained in the sample that contains a large amount of catalyst carriers 4 is better.
Table 1
(A) dropping shock test (ten times fall the quantity of being peeled off) [mg]
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle diameter | ||
| ?0.05μm | ?0.3μm | ?1.0μm | |
| ?0.2μm | ?0.00 | ?0.00 | ?0.28 |
| ?0.6-0.8μm | ?0.00 | ?0.00 | ?0.90 |
(B) adhesive strength test (quantity that comes off) [mg]
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle diameter | ||
| ?0.05μm | ?0.3μm | ?1.0μm | |
| ?0.2μm | ?0.00 | ?0.00 | ?0.62 |
| ?0.6-0.8μm | ?0.08 | ?0.20 | ?1.48 |
(C) light service life (number of packages that in 20, does not refire) (part) once more
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle diameter | ||
| ?0.05μm | ?0.3μm | ?1.0μm | |
| ?0.2μm | ?3/20 | ?0/20 | Unignited |
| 0.6-0.8μm | ?0/20 | ?0/20 | Unignited |
(D) burning time (original value) (second) once more
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle diameter | ||
| ?0.05μm | ?0.3μm | ?1.0μm | |
| ?0.2μm | ?2.98 | ?2.76 | Unignited |
| 0.6-0.8μm | ?2.64 | ?2.43 | Unignited |
Table 2 (A) dropping shock test (ten times fall the quantity of being peeled off) [mg]
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Surface coefficient (0.3 μ M) | |
| ??8.9m 2/g | ??15.3m 2/g | |
| ??0.2μm | ??0.31 | ??0.00 |
| ??0.6-0.8μm | ??0.44 | ??0.65 |
(B) adhesive strength test (quantity that comes off) [mg]
(C) light service life (number of packages that in 20, does not refire) (part) once more
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Surface coefficient (0.3 μ M) | |
| ??8.9m 2/g | ??15.3m 2/g | |
| ?0.2μm | ??0.10 | ??0.00 |
| ?0.6-0.8μm | ??0.36 | ??0.20 |
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Surface coefficient (0.3 μ M) | |
| ??8.9m 2/g | ??15.3m 2/g | |
| ?0.2μm | ??0/20 | ??0/20 |
| ?0.6-0.8μm | ??3/20 | ??0/20 |
(D) burning time (original value) (second) once more
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle | |
| ??8.9m 2/g | ??15.3m 2/g | |
| 0.2μm | ??3.74 | ??2.76 |
| 0.6-0.8μm | ??3.86 | ??2.43 |
Table 3
(A) dropping shock test (ten times fall the quantity of being peeled off) [mg]
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle diameter | ||
| 0.05μm | ?0.3μm | ?1.0μm | |
| 0.05μm | 0.00 | ?0.00 | ?2.85 |
| 0.22μm | 0.11 | ?1.80 | ?2.65 |
(B) adhesive strength test (quantity that comes off) [mg]
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle diameter | ||
| ?0.05μm | ?0.3μm | ?1.0μm | |
| 0.05μm | ?0.00 | ?0.00 | ?2.64 |
| 0.22μm | ?0.06 | ?1.78 | ?2.74 |
(C) light service life (number of packages that in 20, does not refire) (part) once more
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle diameter | ||
| ?0.05μm | ?0.3μm | ?1.0μm | |
| 0.05μm | ?3/20 | ?0/20 | ?12/20 |
| 0.22μm | ?6/20 | ?3/20 | ?12/20 |
(D) burning time (original value) (second) once more
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle diameter | ||
| ?0.05μm | ?0.3μm | ?1.0μm | |
| 0.05μm | ?2.69 | ?2.10 | ?3.34 |
| 0.22μm | ?2.48 | ?2.57 | ?3.70 |
Table 4
(A) dropping shock test (ten times fall the quantity of being peeled off) [mg]
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Surface coefficient (0.3 μ M) | |
| ??8.9m 2/g | ??15.3m 2/g | |
| 0.05μm | ??0.73 | ??0.00 |
| 0.22μm | ??1.06 | ??1.80 |
(B) adhesive strength test (quantity that comes off) [mg]
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Surface coefficient (0.3 μ m) | |
| ??8.9m 2/g | ??15.3m 2/g | |
| 0.05μm | ??0.02 | ??0.00 |
| 0.22μm | ??0.28 | ??1.78 |
(C) light service life (number of packages that in 20, does not refire) (part) once more
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Surface coefficient (0.3 μ M) | |
| ??8.9m 2/g | ??15.3m 2/g | |
| 0.05μm | ??9/20 | ??0/20 |
| 0.22μm | ??15/20 | ??3/20 |
(D) burning time (original value) (second) once more
| Intensity keeps material TiO 2Particle diameter | Catalyst carrier Al 2O 3Particle (0.3 μ M) | |
| ??8.9m 2/g | ??15.3m 2/g | |
| 0.05μm | ??3.52 | ??2.10 |
| 0.22μm | ??4.06 | ??2.57 |
The dropping shock test
In order to carry out dropping shock experiment as shown in Figure 5, each sample in catalyst spare 1 sample that forms with said method (be fixed on obtain on the annular solid 6 catalyst 1) is fixed on the anchor clamps 50, end at anchor clamps 50 is provided with support section 51, and this sample (annular solid 6) is inserted and secured in the support section 51.In this drop test, anchor clamps 50 in the downward mode of its sample fixation side from 1.5 meters high falling on cement plate.In the time of also can falling sample is fixed on the igniter at every turn.Repeat for one second also can produce impact behind ten lighting up procedure to sample.The amount (mg) that the catalyst spare 1 after ten times is fallen down is fallen in measurement, and the amount that falls down the more, and is just more fragile after catalyst spare is hit.
The adhesive strength test
The same sample that in this experiment, also uses spirality catalyst spare 1.As shown in Figure 6, the spiral part of this sample is from 4 millimeters 16 millimeters of being elongated to shown in Fig. 6 B, and is determined at the weight (milligram) of the catalyst spare 1 that comes off in the elongation process.The amount that comes off the more, its adhesive strength is just lower.
Catalytic reaction and fire trial again
Light various igniters, after the second it is extinguished, only allow ejection gas, like this catalytic reaction can take place with different samples.Be divided into reacting and entering first group of red-hot state or react and produce by the reactive of observation catalytic reaction directly perceived and with reaction and obtain the catalytic reaction data than second group of half-light or three kinds of situations of the 3rd group that do not react.
Penalty firing is performed such, earlier igniter is lighted, after one second it is extinguished, and only allow ejection gas, and calculating forms the time cycle of flame up to fighting once more because the catalytic reaction heat that catalytic reaction and catalytic reaction produced takes place.
Calculate and to light percentage once more and it is divided into following a few class: if 3 seconds with interior formation flame, be confirmed as " by refiring " so.If in continuous ten recheckings, refired ten times, determine that it is " by refiring " so.If in continuous ten recheckings, once do not light once more at least, be confirmed as " being refired sometimes " so.If once all do not light or spend if desired 3 seconds or the time more than 3 seconds just can light, be confirmed as " not lighted once more " so.Refiring percentage will recently represent divided by 10 resulting percentages with the number of times of lighting once more.
Light the test in service life once more
With method same as described above, the igniter of the different samples of various uses is lighted, allow it burn and extinguish after 1 second.Repeat these steps 1000 time.In this process, whenever confirm for 50 times to have taken place to light once more or not taken place not light once more.Stop if lighting once more, just the number of times of lighting once more that will thitherto take place is noted.
Igniter fall-down test (impact test) according to the product for civilian use safety standard of product safety association regulation, when igniter bottom be in respectively up, during down with level, after 1.5 meters high local free-falling, igniter will can burn away less than the danger of breaking or by lighting.Use the igniter that the present invention produced to carry out this test.Its result shows, both do not had undesired on the function, and support member can not come off from catalyst spare yet, but and confirms catalyst spare operate as normal in the igniter.
The disposable gas igniter is being lighted after about 600 times usually, and gas just uses and is over.But, can not damage after being installed in the catalyst spare in the igniter even lighting 1000 times through experiment confirm is of the present invention yet, still keep its function.
The particle diameter numeric representation of the oxidized metal powder that uses among shown here the present invention be average particle diameter numerical value.The oxidized metal powder is not a kind of unified particle diameter usually.In fact, it is a kind of mixture by the powder constituent with various particle diameters.For example, if the average particulate diameter of alumina powder is 0.22 micron, the particle diameter that so just means alumina powder is between the 0.1-0.4 micron, as shown in the particle size distribution figure of Fig. 9.
Claims (8)
1, a kind of catalyst support member, it comprises:
One by heat proof material, the basic core of making as nickel chromium triangle metal alloy wires or analog; With
A kind of mixed-powder, it comprises basically by the oxidized metal powder, catalyst carrier as alumina powder, titanium dioxide powder or analog composition, keep material with a kind of intensity of forming by the oxidized metal powder, as alumina powder, titanium dioxide powder or analog basically, described intensity keeps the particle diameter of the particle diameter of material less than described catalyst carrier
With the melting adhered material of glass powdery with described mixed-powder fusion bond on the described basic core.
2, catalyst support member as claimed in claim 1 is characterized in that described catalyst carrier is an alumina powder, and it is titanium dioxide powder that described intensity keeps material.
3, catalyst support member as claimed in claim 1 is characterized in that described catalyst carrier is an alumina powder, and it is alumina powder that described intensity keeps material.
4, as claim 1,2 or 3 described catalyst support members, it is characterized in that using particle diameter to be the 0.05-1 micron, surface coefficient is at 8m
2/ g or above alumina powder are as described catalyst carrier.
5, catalyst support member as claimed in claim 1 or 2 is characterized in that using particle diameter to be no more than 0.8 micron and the titanium dioxide powder that is preferably in about 0.2 micron and keeps material as described intensity.
6, catalyst support member as claimed in claim 4 is characterized in that using particle diameter to be no more than 0.8 micron and the titanium dioxide powder that is preferably in about 0.2 micron and keeps material as described intensity.
7,, it is characterized in that using particle diameter to be no more than 0.2 micron and the alumina powder that is preferably in about 0.05 micron and keep material as described intensity as claim 1 or 3 described catalyst support members.
8, catalyst support member as claimed in claim 4 is characterized in that using particle diameter to be no more than 0.2 micron and the alumina powder that is preferably in about 0.05 micron and keeps material as described intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96121177 CN1161426A (en) | 1995-09-28 | 1996-09-28 | Catalyst support member |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP250333/95 | 1995-09-28 | ||
| CN 96121177 CN1161426A (en) | 1995-09-28 | 1996-09-28 | Catalyst support member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1161426A true CN1161426A (en) | 1997-10-08 |
Family
ID=5126779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96121177 Pending CN1161426A (en) | 1995-09-28 | 1996-09-28 | Catalyst support member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1161426A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111656086A (en) * | 2017-12-01 | 2020-09-11 | 新富士燃烧器株式会社 | Torch |
| CN112902222A (en) * | 2016-12-13 | 2021-06-04 | 毕克有限公司 | Ignition assembly and method for producing such an ignition assembly |
-
1996
- 1996-09-28 CN CN 96121177 patent/CN1161426A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902222A (en) * | 2016-12-13 | 2021-06-04 | 毕克有限公司 | Ignition assembly and method for producing such an ignition assembly |
| CN111656086A (en) * | 2017-12-01 | 2020-09-11 | 新富士燃烧器株式会社 | Torch |
| US11353297B2 (en) | 2017-12-01 | 2022-06-07 | Shinfuji Burner Co., Ltd. | Torch |
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