CN203990109U - The gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration - Google Patents
The gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration Download PDFInfo
- Publication number
- CN203990109U CN203990109U CN201420282630.8U CN201420282630U CN203990109U CN 203990109 U CN203990109 U CN 203990109U CN 201420282630 U CN201420282630 U CN 201420282630U CN 203990109 U CN203990109 U CN 203990109U
- Authority
- CN
- China
- Prior art keywords
- porous
- gas
- hole
- center
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 78
- 230000000694 effects Effects 0.000 title claims abstract description 61
- 238000004140 cleaning Methods 0.000 title claims abstract description 52
- 238000011069 regeneration method Methods 0.000 title claims abstract description 44
- 230000008929 regeneration Effects 0.000 title claims abstract description 43
- 239000000919 ceramic Substances 0.000 claims abstract description 122
- 229910052751 metal Inorganic materials 0.000 claims abstract description 79
- 239000002184 metal Substances 0.000 claims abstract description 79
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 74
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 66
- 239000010935 stainless steel Substances 0.000 claims abstract description 59
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 59
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 47
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 45
- 230000003197 catalytic effect Effects 0.000 claims abstract description 36
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 30
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims description 32
- 229910045601 alloy Inorganic materials 0.000 claims description 22
- 239000000956 alloy Substances 0.000 claims description 22
- 238000010926 purge Methods 0.000 claims description 20
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 14
- 239000004809 Teflon Substances 0.000 claims description 12
- 229920006362 Teflon® Polymers 0.000 claims description 12
- 239000011258 core-shell material Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 150000004706 metal oxides Chemical class 0.000 claims description 8
- 230000008595 infiltration Effects 0.000 claims description 7
- 238000001764 infiltration Methods 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 257
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 35
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 238000001914 filtration Methods 0.000 abstract description 21
- 239000000428 dust Substances 0.000 abstract description 18
- 238000007084 catalytic combustion reaction Methods 0.000 abstract description 10
- 239000008358 core component Substances 0.000 abstract description 4
- 239000000523 sample Substances 0.000 description 41
- 239000000463 material Substances 0.000 description 33
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 24
- 238000000034 method Methods 0.000 description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 20
- 230000035945 sensitivity Effects 0.000 description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 17
- 229910052802 copper Inorganic materials 0.000 description 17
- 239000010949 copper Substances 0.000 description 17
- 239000004575 stone Substances 0.000 description 16
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 14
- 239000000843 powder Substances 0.000 description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 12
- 229910002091 carbon monoxide Inorganic materials 0.000 description 12
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 150000001335 aliphatic alkanes Chemical class 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 239000002341 toxic gas Substances 0.000 description 9
- 229910000881 Cu alloy Inorganic materials 0.000 description 8
- 229960004643 cupric oxide Drugs 0.000 description 8
- 230000008021 deposition Effects 0.000 description 8
- 238000006477 desulfuration reaction Methods 0.000 description 8
- 230000023556 desulfurization Effects 0.000 description 8
- 239000012634 fragment Substances 0.000 description 8
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 7
- 150000002431 hydrogen Chemical class 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 150000001450 anions Chemical class 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 230000008676 import Effects 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 230000009257 reactivity Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000003009 desulfurizing effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 231100000572 poisoning Toxicity 0.000 description 4
- 230000000607 poisoning effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052613 tourmaline Inorganic materials 0.000 description 4
- 229940070527 tourmaline Drugs 0.000 description 4
- 239000011032 tourmaline Substances 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 235000012736 patent blue V Nutrition 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000005751 Copper oxide Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 235000013847 iso-butane Nutrition 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
The gas alarm filter of energy self-cleaning, catalyst activity regeneration belongs to a safety protection field, is quite applicable to catalytic combustion type, semiconductor-type, electrochemical gas sensor use.Have center hole and voided polytetrafluoroethylene film porous stainless steel upper cover, have center through hole the catalysis of porous type far infrared-metal sulfate---electrostriction ceramics-metal oxide filter element is its core component.And the porous of filter element inside far infrared-metal sulfate catalytic ceramics ball and porous electrostriction ceramics--metal oxide spheres is basis of the present utility model and key.This filter not only can be scolded water droplet, filtering dust, keeps out expeditiously, suppresses, absorbs and filter the interference gas such as hydrogen sulfide, but also can be efficiently, long-life ground work.Its filter capacity can not be subject to the impact of humidity, and very little to the absorptivity of tested gas.
Description
Technical field
The utility model relates to the gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration, particularly a kind of energy self-cleaning of porous type far infrared, multiphase catalyst alloy gas, anion, piezoelectric ceramics catalyst, gas alarm filter of catalyst activity regeneration of adopting.Its quite suitable catalytic combustion type, potentiostatic deposition formula electric chemical formula and semiconductor-type gas alarm, as the filter of filtering sulfide interference gas, belong to safety protection technique field.Described energy self-cleaning, the reproducible gas alarm filter of catalyst activity are obvious to the filter effect of interference gas, and it is very little to the absorptivity of tested gas, in addition, its filter capacity is not subject to the impact of ambient humidity, cost is low, stable performance, scold water droplet, reliability is high, the life-span is long.
Background technology
Current commercial catalytic combustion type, potentiostatic deposition formula electric chemical formula and semiconductor-type gas alarm are resisted the ability fragility of the interference gas such as hydrogen sulfide, sulfur dioxide, and resistance to damp atmosphere and the water droplet ability on gas detection probe of being attached to are not good.Described interference gas, damp atmosphere and the water droplet being attached on gas detection probe can bring huge injury to gas alarm.
According to authoritative department statistics such as Britain, Japan, Korea S, common gases detection probe and gas alarm will be reported phenomenon by mistake in common 3～5 months at present.Its main cause is that the interference gas such as hydrogen sulfide, sulfur dioxide and damp atmosphere and the water droplet that is attached on gas detection probe are doing mischief.Our experiment shows, when containing 1ppm(10 in environment
-6) when the interference gas such as hydrogen sulfide, sulfur dioxide of above concentration, catalytic combustion method gas sensor, potentiostatic deposition formula electrochemical gas sensor, semiconductive ceramic formula gas sensor all will produce significantly " poisoning " aging phenomenon:
In tested gas, exist hydrogen sulfide, sulfur dioxide to make the core component of gas alarm---will there is following variation in accuracy in detection, sensitivity and the long-term stability of gas sensor:
For semiconductor-type gas sensor, above-mentioned interference gas declines its corresponding sensitivity that detects gas, and increase on the contrary for the sensitivity of gas interference gas such as () hydrogen sulfide, sulfur dioxide, chlorine that does not need to detect, so-called " sensitizing effect ", thereby the probability of false alarm increases widely.For example: tin oxide semiconductor ceramic-type gas sensor is in the time using as methane sensor, due to adhering to of above-mentioned interference gas, making its gas to needs detection---the sensitivity of methane declines, and for do not need detect gas---the sensitivity of ethanol increases, sometimes even for the sensitivity of ethanol but higher than the sensitivity to methane, a presumptuous guest usurps the role of the host, resolution loss.
For catalytic combustion method gas sensor, above-mentioned interference gas makes it, and to alkanes, sensitivity sharply declines, and sometimes even loses the sensitiveness to alkanes, i.e. so-called " poisoning " phenomenon.It has seriously affected the reliability that gas alarm is applied." poisoning " phenomenon also shows in the drift of detection signal: although gas alarm is popped one's head in, the signal level that provides and combustable gas concentration indicated value are also well below LEL value, and in fact combustable gas concentration has has met or exceeded flammable gas explosion least concentration value.How fearful this wrong report phenomenon is!
While utilizing the detection of potentiostatic deposition formula electrochemical gas sensor, monitoring carbon monoxide, sulfur dioxide concentration, if hydrogen sulfide interference gas is higher than 5ppm, potentiostatic deposition formula electrochemical gas sensor simply just cannot detect the gas such as carbon monoxide, sulfur dioxide so.
In addition, the water droplet on damp atmosphere and gas sensor etc. all will reduce resolution ratio, stability, reliability and the service life of catalytic combustion method gas sensor, semiconductive ceramic formula gas sensor.Because gas alarm is mostly placed near workshop, oil, feed channel, gas station, oil depot, air accumulator, and gas detection probe all needs exposed installation, therefore inevitably will suffer wind and weather.Although some gas alarm probes have been installed shading rain cap, the invasion that is subject to dust storm and water droplet can not be avoided.In addition, gas detection probe is responsive flammable or toxic gas adopts the one in nature diffusion or Smoking regime conventionally, make flammable or toxic gas gas enter gas detection probe, by gas sensor sensitivity, so dust is easily piled up on traditional pneumatic filter surface, spatters water droplet, its filtering holes is very easily stopped up by greasy dirt, dust, cause filter failure, the filter of having to change frequently.Obviously, traditional interference gas filter not only the life-span short, filter effect is not good, operating cost is high, and maintenance, maintenance work amount are large, need to change continually filter, causes the on-line continuous of alarm to detect, monitoring function can not really implement.
Gas alarm theory is told us, no matter catalytic combustion method gas sensor, semiconductive ceramic formula gas sensor, the globule, high humility gas enter gas detection probe and all will detect to gas, and become and send, report to the police and bring larger interference, introduce unacceptable error.Therefore people are urgently desirable to provide a kind of gas alarm with scolding water droplet, resistance to high humidity, self-cleaning, the active reproducible sulfide interference gas filter of catalysts.Also there is no at present regrettably gas alarm with scolding water droplet, resistance to high humidity, self-cleaning, the active reproducible sulfide interference gas filter of catalysts.According to investigations, the producer that has at present adopts metallic filter that the powder metallurgy of filtering dust makes or the active carbon filter as gas detection probe filtering material with active carbon.
Active carbon is a kind of filtering material of routine, regrettably it has following 4 shortcomings: the filtration non-selectivity of (1) active carbon to gas: it is in leaching hydrogen sulfide, sulfur dioxide, hexamethyl silane and so on the assorted gas such as organosilicon, also the corresponding gas detecting (for example, methane, iso-butane, carbon monoxide, hydrogen etc.) carry out " filtering " to a certain degree and decay, thereby, not only reduce widely the warning sensitivity of gas detection probe, and increase the response time of gas detection probe, sometimes even increased by 4～6 times nearly.In other words, taking sacrifice warning sensitivity and response time exchange filtering function for as cost.(2) effective pore size filter of active carbon depends on and the temperature and humidity of environment, and therefore its filtering feature is to be function of many variables curve, and the uncertainty of filtration is larger.In other words, region, season and operating mode that gas alarm uses have been limited.(3) absorption mechanism of active carbon molecule is reversible physical type, and therefore its filter capacity is easily saturated.After saturated, occur separating suction phenomenon, lose adsorption capacity, filter life is of short duration, needs regeneration in time to process or change fresh active carbon.(4) more than the contact angle of active carbon and water reaches 165 degree, good to the wellability of water, thus the globule that adheres to of gas detection probe outer surface very easily to enter probe inner, affect the normal work of gas sensor.Obviously, the filtering material using active carbon as gas detection probe is unsatisfactory.
In imflammable gas that naphtha conveying, storage, the processing enterprise of incinerator, garbage power plant, Oilfield Natural Gas Plant exploitation, conveying, storage and processing enterprise, oil field and the petroleum chemical enterprise of China used, liquid, all contain the hydrogen sulfide gas of high concentration.We measure and show, for example, in imflammable gas that domestic some naphtha conveying, storage, processing enterprise used, liquid (: natural gas, naphtha), concentration of hydrogen sulfide has up to more than 1000ppm.They will bring very large error to flammable or toxic gas detection probe and gas alarm.Require emphasis especially, while utilizing the detection of potentiostatic deposition formula electrochemical gas sensor, monitoring carbon monoxide, sulfur dioxide concentration, if hydrogen sulfide interference gas is higher than 5ppm, potentiostatic deposition formula electrochemical gas sensor simply just cannot detect carbon monoxide, sulfur dioxide so.
The situation of China's gas alarm industry pessimistic at present: most manufacturer flammable or toxic gas detection probe and gas alarm directly packs commercial gas sensor in gas detection probe, be present in and separately do not add to eliminate the filter that brings dysgenic interference gas (for example, hydrogen sulfide interference gas) in tested gas to gas sensor.
Obviously, development and exploitation gas alarm are with scolding water droplet, resistance to high humidity, self-cleaning, the reproducible sulfide interference gas filter technology of catalysts activity extremely urgent.
Summary of the invention
The purpose of this utility model is to overcome defect or the deficiency that interference gas filter flammable or toxic gas exists at present, the gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration is provided, it adopts porous type far infrared, multiphase catalyst alloy gas, anion, piezoelectric ceramics catalyst, can self-cleaning, catalyst activity is renewable, quite suitable catalytic combustion type, potentiostatic deposition formula electric chemical formula and semiconductor-type gas alarm use as the filter of filtering sulfide interference gas.Described can self-cleaning, the gas alarm filter of catalyst activity regeneration is obvious to the filter effect of interference gas, not only the absorption to hydrogen sulfide, dust etc. and filter capacity are strong, and very little to the absorption of tested gas.It can filtering hydrogen sulfide etc. interference gas, good filtration effect, fast response time, its filter capacity is not affected by the globule on ambient humidity and filter housing, cost is low, stable performance, reliability is high and the mechanical strength high life is long.
Above-mentioned purpose of the present utility model is achieved in that and is shown in Fig. 1, Fig. 2, one energy self-cleaning in Fig. 3 and Fig. 6, the gas alarm filter 1 of catalyst activity regeneration is by the porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22, there is center through hole 1, porous type far infrared-metal sulfate catalysis---electrostriction ceramics-metal oxide filter element 3 of through hole 3 27, there is good repellency and " O " shape porous Teflon cylinder 4 to most liquid non-infiltration, there is the porous stainless steel bottom 5 of center through hole 2 24 and voided polytetrafluoroethylene film 25, calibrating gas input and purge of gas stainless steel anti-blowpipe 6, fastening nut 7, clamp nut 8 forms,
Wherein, there is center through hole 1, through hole 3 27 the catalysis of porous type far infrared-metal sulfate---electrostriction ceramics-metal oxide filter element 3 as shown in Figure 3, comprise following four assemblies: A bottom center has the porous far-infrared ceramic hollow circuit cylinder core shell 17 of through hole 3 27, B, porous electrostriction ceramics-metal oxide spheres 20, C, hydrogen sulfide gas is possessed to very strong irreversible adsorptivity and higher reactivity, and to hydrogen, alkanes gas and the carbon monoxide etc. such as natural gas but do not possess reactivity and adsorptivity, also can realize porous far infrared-metal sulfate catalytic ceramics ball 19 of desulfurizing agent circulation active regeneration function, D, central authorities have the porous far-infrared ceramic disk 18 of through hole 1.It is characterized in that,
Inside in bottom center has the porous far-infrared ceramic hollow circuit cylinder core shell 17 of through hole 3 27 includes even mixing, porous far infrared-metal sulfate catalytic ceramics the ball 19 and the porous electrostriction ceramics-metal oxide spheres 20 that distribute, and the porous far-infrared ceramic disk 18 that central authorities have a through hole 1 is placed in bottom center and has on the porous far-infrared ceramic hollow circuit cylinder core shell 17 of through hole 3 27, and porous far-infrared ceramic hollow circuit cylinder core shell 17 and porous far-infrared ceramic disk 18 utilize binder to be stained with between the two, thereby form and there is center through hole 1, porous type far infrared-metal sulfate catalysis---electrostriction ceramics-metal oxide filter element 3 of through hole 3 27.
Thering is porous type far infrared-metal sulfate catalysis of center through hole 1, through hole 3 27---electrostriction ceramics-metal oxide filter element 3 is positioned at the inside of " O " shape porous Teflon annulus 4, the porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22 is positioned on " O " shape porous Teflon annulus 4, and the porous stainless steel bottom 5 with center through hole 2 24 and voided polytetrafluoroethylene film 25 is positioned under " O " shape porous Teflon cylinder 4.
Fastening nut 7 is positioned at the top of calibrating gas input and purge of gas stainless steel anti-blowpipe 6, clamp nut 8 is positioned on the porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22, and calibrating gas input and purge of gas are passed in clamp nut 8 central authorities with stainless steel anti-blowpipe 6, and both are to be threaded.Calibrating gas input and purge of gas at least will be able to ensure that by the length of stainless steel anti-blowpipe 6 its bottom 26 can pass porous type far infrared-metal sulfate catalysis with center through hole 1, through hole 3 27---electrostriction ceramics-metal oxide filter element 3, there is the porous stainless steel bottom 5 of center through hole 2 24 and voided polytetrafluoroethylene film 25.Note, should ensure that calibrating gas input and purge of gas stainless steel anti-blowpipe 5 and porous stainless steel upper cover 2, the catalysis of porous type far infrared-metal sulfate---electrostriction ceramics-metal oxide filter element 3, porous stainless steel bottom 5 are installed firmly.
The lower end open-ended of calibrating gas detection and purge gas anti-blowpipe 6, communicate with gas sensor 55 spaces, place 60, and its upper end open place, with fastening nut 7 screwing hermetics, is shown in a kind of energy self-cleaning of Fig. 2 and Fig. 3, the gas alarm filter 1 of catalyst activity regeneration thereby formed.
Fig. 6 provided of the present utility model a kind of can self-cleaning, the gas alarm filter of the catalyst activity regeneration installation diagram in gas alarm probe.In Fig. 6, the gas alarm filter 1 of energy self-cleaning, catalyst activity regeneration is placed in stainless steel gas alarm probe 50.Gas alarm probe 50 be stainless steel cloth 51 foremost, what be close to stainless steel cloth 51 is metal protuberance step 52, can self-cleaning, the gas alarm filter 1 of catalyst activity regeneration is placed on metal protuberance step 52.Supported 53 of the gas alarm filter 1 of energy self-cleaning, catalyst activity regeneration is fixing.What be connected with support member 53 is porous ceramic filter 54.54 one-tenth disc-shapeds of porous ceramic filter, utilize binder to make porous ceramic filter 54 glued together with the stainless steel tube of gas alarm probe 50.Gas sensor 55 is placed on porous ceramic filter 54.With the stainless steel tube 59 of gas alarm probe 50 within, gas sensor 55, support member 53 and there is porous type far infrared-metal sulfate catalysis---the Existential Space 60 between electrostriction ceramics-metal oxide filter element 3 of center through hole 1, through hole 3 27.57 and 58 is pins of gas alarm, can be connected with external circuit by lead-in wire.
The material of porous ceramic filter 54 can be identical with material and the structure of the gas alarm filter 1 of energy self-cleaning, catalyst activity regeneration with structure, also can adopt other porous ceramic film material and structure.The object that adopts porous ceramic filter 54 is in order to coordinate with the gas alarm filter 1 of energy self-cleaning, catalyst activity regeneration, to improve the mobility of monitored gas in space 60, improving the accuracy detecting.
The demarcation of gas alarm filter and the implementation method of self-cleaning function of a kind of energy of the present utility model self-cleaning, catalyst activity regeneration are as follows: as shown in Fig. 2, Fig. 3 and Fig. 6, in the time of calibration gas sensor 55, the fastening nut 7 of can outwarding winding, import calibrating gas, gas sensor is carried out to characteristic demarcation; In addition when have center hole 21 and voided polytetrafluoroethylene film 22 porous stainless steel upper cover 2 through hole or there is porous type far infrared-metal sulfate catalysis of center through hole 1, through hole 3 27---when dust or pollutant are adhered in the hole of electrostriction ceramics-metal oxide filter element 3, the fastening cap 7 of can outwarding winding, import high pressure dry air and carry out blowback cleaning, the dust or the pollutant that are adsorbed on their surfaces are blown off, thereby keep overall porous, guarantee good aeration flammable to tested hydrogen, alkanes etc. and to toxic gas.
Described porous type far infrared-metal sulfate catalysis with center through hole 1, through hole 3 27---porous far infrared-metal sulfate catalytic ceramics ball 19 and the porous electrostriction ceramics--metal oxide spheres 20 of electrostriction ceramics-metal oxide filter element 3 inside are core components of the present utility model.For porous far infrared-metal sulfate catalytic ceramics ball 19 of the present utility model and porous electrostriction ceramics-metal oxide spheres 20, the porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22 is the first line of defences that suppress hydrogen sulfide, sulfur dioxide, hexamethyl silane and so on the interference gas such as organosilicon.
The outer surface of the described porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22 is polytetrafluoroethylmaterial materials of porous, its upper surface opens wide, and with have center through hole 1, through hole 3 27 the catalysis of porous type far infrared-metal sulfate---electrostriction ceramics-metal oxide filter element 3 is used in conjunction with, play filtering dust, sulfide interference gas, and the palingenesis of catalyst activity.
Described porous type far infrared-metal sulfate catalysis with center through hole 1, through hole 3 27---the aperture of electrostriction ceramics-metal oxide filter element 3 is 10 ~ 100 μ m.The voided polytetrafluoroethylene film 22 of porous stainless steel upper cover 2 has good repellency and the non-infiltration to most liquid (including the organic solvent of many types).Thereby the free globule that is attached to energy self-cleaning, reproducible gas alarm filter 1 outer surface of catalyst activity is difficult to enter its inside; In addition, it is also quite difficult that steam wants to enter the inside of filter 1.Even so, in the time of the humidity very high (reaching 96%RH) of test environment, even if water or the steam of trace can enter filter 1,, only just entering near porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics--metal oxide spheres 20th district, be just eliminated it.This is because catalytic combustion method gas sensor, semiconductive ceramic formula gas sensor all will be heated to 300～500 DEG C while work, under the heat radiation of high-temperature baking and porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics--metal oxide spheres 20 far infrared fields of line, there are two kinds of variations in this water or steam:
make H2 O and CuSO4 be combined into CuSO4.5H2 O, becomes sky blue anorthic crystal, and H2 O has become the crystallization water, non-free water, and remove.
physical evaporation, becomes steam and spreads out, thereby can keep the drying regime of pneumatic filter 1 inside rapidly.In addition, because polytetrafluoroethylmaterial material has good non-infiltration to most liquid (including the organic solvent of many types), so organic solvent, organosilicon etc. are also difficult for the outer surface of the voided polytetrafluoroethylene film 22 that adheres to porous stainless steel upper cover 2.
Being positioned at described porous type far infrared-metal sulfate catalysis with center through hole 1, through hole 3 27---porous far infrared-metal sulfate catalytic ceramics ball 19 and the porous electrostriction ceramics--metal oxide spheres 20 of electrostriction ceramics-metal oxide filter element 3 inside are second defence lines that the utility model suppresses the interference gas such as hydrogen sulfide, are also the most critical parts of the interference gas such as the utility model opposing hydrogen sulfide.
Fig. 4 is the generalized section of porous far infrared-metal sulfate catalytic ceramics ball of the present utility model 19 structures.
Fig. 5 is the generalized section (for convenience of explanation, the dimension scale of structure sheaf figure being exaggerated) of porous electrostriction ceramics--metal oxide spheres 20 structures.After in the utility model, porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics-metal oxide spheres 20 evenly mix, be placed in there is center through hole 1, porous type far infrared-metal sulfate catalysis of through hole 3 27---electrostriction ceramics-metal oxide filter element 3 inside, and the latter's diameter is 1～3 times of the former diameter.
Porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics--metal oxide spheres 20 structures are as follows:
Porous far infrared-metal sulfate catalytic ceramics ball 19 is for example, to be made up of far infrared core body 105, rare earth anion layer 104, multiphase catalyst alloy gas layer 102, surface metal sulfate catalytic reaction layer (: copper sulphate) 101.Core body 105 is positioned at the central authorities of this spheroid, and it is to be that more than 10 material such as metallic copper or copper alloy filament forms by the ratio of medical stone porous ceramic, copper mesh fragment, length over diameter, adopts ceramic technoloigcal process.Rare earth anion layers 104 in Ceramic Balls core body 105 outsides, it is to be more than 10 formations such as metallic copper or copper alloy filament material, Low Temperature Far Infrared wire material (for example: tourmaline powder, zeolite powder, medical stone powder) by the ratio of rare earth anion body material, medical stone porous ceramic, copper mesh fragment, length over diameter, adopts ceramic thick film technique to make.Make again multiphase catalyst alloy gas layer 102 in its outside, the outside of multiphase catalyst alloy gas layer 102 is surface metal sulfate catalytic reaction layers (for example: copper sulphate) 101, it is to be made up of medical stone porous ceramic and copper sulphate material etc., is also to adopt ceramic thick film technique to make.
Porous electrostriction ceramics--metal oxide spheres 20 for example remains, by far infrared core body 105b, rare earth anion layer 104b, multiphase catalyst alloy gas layer 102b, surface metal oxide catalytic reaction layer (: cupric oxide) 101b and forms.Core body 105b is positioned at the central authorities of this spheroid, and it is to be that more than 10 material such as metallic copper or copper alloy filament forms by the ratio of medical stone porous ceramic, copper mesh fragment, length over diameter, adopts ceramic technoloigcal process.Rare earth anion layer 104b in Ceramic Balls core body 105b outside, it is to be more than 10 formations such as metallic copper or copper alloy filament material, Low Temperature Far Infrared wire material (for example: tourmaline powder, zeolite powder, medical stone powder) by the ratio of anion body material, medical stone porous ceramic, copper mesh fragment, length over diameter, adopts ceramic thick film technique to make.Make again multiphase catalyst alloy gas layer 102b in its outside, the outside of multiphase catalyst alloy gas layer 102b be surface metal oxide catalytic reaction layer 101b(for example: cupric oxide), it is to be made up of medical stone porous ceramic, electrostriction ceramics and copper oxide material etc., is also to adopt ceramic thick film technique to make.
Adopt the object of above-mentioned layer structure spheroid to be to provide Low Temperature Far Infrared line, anion body, heterogeneous alloy catalyst function play catalytic reaction and desiccation, and utilize surface metal sulfate catalytic reaction layer (for example: copper sulphate) to realize desulfurization (hydrogen sulfide), utilize cupric oxide and electrostriction ceramics in surface metal oxide catalytic reaction layer to realize desulfurizing agent circulation active regeneration function.Wherein electrostriction ceramics can also utilize vibration or collision mutually, and mechanical friction occurs.Therefore not only can improve catalytic reaction vigor, and because friction, mutual collision come off the dust, the desulfurization intermediate product that cause its adsorption, the contamination resistance of spherical catalysts will be improved, improve service life, play the effect of catalysts active regeneration, thereby promoted catalysts activity.
For spherome surface catalytic reaction dosage is maximized, in order to make specific area maximization that it contacts with hydrogen sulfide, its porosity should be, in order to make its good filtration effect, and fast response time, and also mechanical strength is high.The diameter of porous far infrared-metal sulfate catalytic ceramics ball 19 is 2mm left and right, and the diameter of porous electrostriction ceramics--metal oxide spheres 20 is 2～6mm, and their porosity should be more than 30%, and hole diameter is 10 ~ 100 μ m.
The working mechanism of porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics--metal oxide spheres 20 filtering hydrogen sulfide principles and desulphurization circulating active regeneration is as follows:
Contain H
2there is following reaction at porous far infrared-metal sulfate catalytic ceramics ball 19 in the tested fuel gas of S or toxic gas:
H
2S＋CuSO
4＝CuS ＋H
2SO
4 (1)
SO
3 ＋H
2O＝H
2SO
4 （2）
Obviously, at porous far infrared-metal sulfate catalytic ceramics Qiu19 district, H
2s separates from tested fuel gas, has become CuS and H
2sO
4(sulfuric acid).Obviously in desulfurization, produced H
2sO
4(sulfuric acid) byproduct, this byproduct must be removed.In porous electrostriction ceramics--metal oxide spheres 20 regions, there is following reaction:
H
2SO
4＋Cu O＝CuSO
4＋H
2O （3）
Produce CuSO
4and H
2o, H
2sO
4(sulfuric acid) disappears, and therefore ill effect can not occur.In other words, the H in tested fuel gas
2s is eliminated.In addition, porous far infrared-metal sulfate catalytic ceramics ball 19 and the porous electrostriction ceramics-far-infrared ray ceramic particle of-metal oxide spheres 20 have absorbed the energy of the heater of sensing element, give off far infrared, the fuel factor of this far infrared makes CuSO
4with H
2o is combined into CuSO
4.5H
2o, becomes the sky blue anorthic crystal that contains the crystallization water.In other words H
2o has become the crystallization water, is not steam, therefore not only can not affect the measure error of sensor, but also makes desulfurizing agent CuSO
4regeneration.In addition, the cordierite in pottery with and lip-deep copper film all there is desulfurization (H
2s) effect.Their comprehensive function has improved desulfurization (interference gas such as hydrogen sulfide) effect widely.Above-mentioned porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics--metal oxide spheres 20 are to tested gas, and alkanes, hydrogen, the carbon monoxide such as such as methane absorb hardly.Therefore, tested gas can be smoothly through it, enters gas sensor 18, by its detection.
When needs carry out timing signal to gas sensor 18, calibrating gas directly can be inputted to calibrating gas and detect and purge gas blowback interface 5.Now calibrating gas can, without ceramic filter, directly enter gas sensor 18, realizes the degree of accuracy inspection of sensor.In addition,, due to the long-term work of gas detection probe, inevitably on ceramic filter outer wall, deposit some precipitate in dust, gas, thereby stopped up ceramic filter.Now high pressure pure air input calibrating gas can be detected and purge gas blowback interface 5, ceramic filter is carried out to blowback cleaning, make ceramic filter regeneration.
Obviously its working mechanism utilizes porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics--metal oxide spheres 20 to possess very strong irreversible adsorptivity and higher reactivity to hydrogen sulfide gas, and the alkanes such as hydrogen, natural gas gas and carbon monoxide etc. are not had to reactivity, possess hardly adsorptivity.Thereby, can keep out expeditiously, suppress, absorb and filter the interference gas such as hydrogen sulfide.
beneficial effect
For check of the present utility model a kind of can self-cleaning, the effect of the gas alarm filter of catalyst activity regeneration, successively to conventional gas alarm, using can self-cleaning, the gas alarm of the gas alarm filter of catalyst activity regeneration carries out sampling Detection.Every kind of gas alarm is extracted respectively to 2 samples, carry out successively attribute inspection, test, and then 4 above-mentioned samples are divided into 2 groups, every group of 2 samples, wherein, 1 sample is the gas alarm of the routine of the metallic filter (making with powder metallurgic method) of the anti-dust function that has, another 1 sample is the gas alarm (note: in order to contrast justice that uses the gas alarm filter of energy self-cleaning, catalyst activity regeneration, every group of sample is except filter classification difference, and other condition is identical).Now, 2 groups of samples are put into 2 successively and detect chamber (No. 1 chamber and No. 2 chambers), one group of sample carries out the anti-poisoning degradation (No. 1 chamber) of resistance to hydrogen sulfide gas, and another group sample carries out resistance to high wet test (No. 2 chambers).
In this anti-poisoning degradation, first in airtight detection chamber, (No. 1 chamber and No. 2 chambers) utilizes respectively syringe to inject CO gas, make the carbon monoxide gas concentration in each chamber be all 200ppm left and right, then start the blower fan in chamber, its inside carbon monoxide gas concentration is everywhere kept evenly, now, record the CO gas sensitivity of every kind of gas detection probe sample.After record, recycling syringe is the hydrogen sulfide about 5ppm toward No. 1 chamber implantation concentration.Toward No. 2 chamber injected water steam, making its relative humidity is 98%RH left and right, then starts the blower fan in chamber, and its inside carbon monoxide gas concentration and relative humidity is everywhere kept evenly.For airtight 2 gas alarms that detect every conventional gas detection probe in chamber and use the gas alarm filter of energy self-cleaning, catalyst activity regeneration, within every 1 hour, measure the sensitivity of 1 probe, check the ability of the poisoning aging and resistance to high humidity of their anti-ization hydrogen.
Anti-poisoning aging test and detection show, be placed in hydrogen sulfide atmosphere of the present utility model can self-cleaning, the gas alarm of the gas alarm filter of catalyst activity regeneration, its sensitivity also kept former sensitivity constant in 40 days; And conventional gas detection probe only passes through 1h, its sensitivity has just declined 10%.Resistance to high humidity test shows, uses the gas alarm of energy self-cleaning, the reproducible gas alarm filter of catalyst activity, and its sensitivity also kept former sensitivity constant in 60 days; And conventional gas detection probe is only through 3 days, its sensitivity has just declined 10%, and wrong report 1 time occurs.
In addition, calibrating gas input and the purge of gas of this structure are cleaned and are brought very large convenience to gas sensor calibration with to blowback with stainless steel anti-blowpipe parts, and for extending, its service life is also quite helpful:
In the time of calibration gas sensor 55, the fastening nut 7 of can outwarding winding, imports calibrating gas, and gas sensor is carried out to characteristic demarcation; In addition when have center hole 21 and voided polytetrafluoroethylene film 22 porous stainless steel upper cover 2 through hole or there is porous type far infrared-metal sulfate catalysis of center through hole 1, through hole 3 27---when dust or pollutant are adhered in the hole of electrostriction ceramics-metal oxide filter element 3, the fastening cap 7 of can outwarding winding, import high pressure dry air and carry out blowback cleaning, the dust or the pollutant that are adsorbed on their surfaces are blown off, thereby keep overall porous, guarantee good aeration flammable to tested hydrogen, alkanes etc. and to toxic gas.
After testing, the diameter of porous desulfurization (hydrogen sulfide) catalytic ceramics ball 19 is 1.0mm left and right, and the diameter of porous electrostriction ceramics ball 20 is 1～3mm, and their porosity is 30% left and right, and hole diameter is 10 ~ 100 μ m.This maximizes spherome surface catalytic reaction dosage, and the specific area contacting with hydrogen sulfide maximizes, therefore good filtration effect, and fast response time, and also mechanical strength is high.
brief description of the drawings
The STRUCTURE DECOMPOSITION schematic diagram of the gas alarm filter of the self-cleaning of a kind of energy of Fig. 1, catalyst activity regeneration.
The general structure schematic diagram of the gas alarm filter of the self-cleaning of a kind of energy of Fig. 2, catalyst activity regeneration.
The vertical section schematic diagram of the gas alarm filter of the self-cleaning of a kind of energy of Fig. 3, catalyst activity regeneration.
The generalized section of Fig. 4 porous far infrared-metal sulfate catalytic ceramics ball 19 structures.
The generalized section of Fig. 5 porous electrostriction ceramics--metal oxide spheres 20 structures.
The scheme of installation of the gas alarm filter of the self-cleaning of a kind of energy of Fig. 6, catalyst activity regeneration in gas alarm probe 50.
detailed description of the invention
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 6, the self-cleaning of a kind of energy, the gas alarm filter 1 of catalyst activity regeneration is by the porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22, there is center through hole 1, porous type far infrared-metal sulfate catalysis---electrostriction ceramics-metal oxide filter element 3 of through hole 3 27, there is good repellency and " O " shape porous Teflon cylinder 4 to most liquid non-infiltration, there is the porous stainless steel bottom 5 of center through hole 2 24 and voided polytetrafluoroethylene film 25, calibrating gas input and purge of gas stainless steel anti-blowpipe 6, fastening nut 7, clamp nut 8 forms.And wherein, there is center through hole 1, through hole 3 27 the catalysis of porous type far infrared-metal sulfate---electrostriction ceramics-metal oxide filter element 3 as shown in Figure 3, it comprises: bottom center has the porous far-infrared ceramic hollow circuit cylinder core shell 17 of through hole 3 27, porous electrostriction ceramics-metal oxide spheres 20, hydrogen sulfide gas is possessed to very strong irreversible adsorptivity and higher reactivity, and to hydrogen, alkanes gas and the carbon monoxide etc. such as natural gas but do not possess reactivity and adsorptivity, also can realize porous far infrared-metal sulfate catalytic ceramics ball 19 of desulfurizing agent circulation active regeneration function, central authorities have the porous far-infrared ceramic disk 18 of through hole 1.It is characterized in that,
Inside in bottom center has the porous far-infrared ceramic hollow circuit cylinder core shell 17 of through hole 3 27 includes even mixing, porous far infrared-metal sulfate catalytic ceramics the ball 19 and the porous electrostriction ceramics-metal oxide spheres 20 that distribute, and the porous far-infrared ceramic disk 18 that central authorities have a through hole 23 is placed in bottom center and has on the porous far-infrared ceramic hollow circuit cylinder core shell 17 of through hole 3 27, and porous far-infrared ceramic hollow circuit cylinder core shell 17 and porous far-infrared ceramic disk 18 utilize binder to be stained with between the two, thereby form and there is center through hole 1, porous type far infrared-metal sulfate catalysis---electrostriction ceramics-metal oxide filter element 3 of through hole 3 27.
Thering is porous type far infrared-metal sulfate catalysis of center through hole 1, through hole 3 27---electrostriction ceramics-metal oxide filter element 3 is positioned at the inside of " O " shape porous Teflon annulus 4, the porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22 is positioned on " O " shape porous Teflon annulus 4, and the porous stainless steel bottom 5 with center through hole 2 24 and voided polytetrafluoroethylene film 25 is positioned under " O " shape porous Teflon cylinder 4.
Fastening nut 7 is positioned at the top of calibrating gas input and purge of gas stainless steel anti-blowpipe 6, clamp nut 8 is positioned on the porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22, and calibrating gas input and purge of gas are passed in clamp nut 8 central authorities with stainless steel anti-blowpipe 6, and both connect with rib-loop.Calibrating gas input and purge of gas at least will be able to ensure that by the length of stainless steel anti-blowpipe 6 its bottom 26 can pass porous type far infrared-metal sulfate catalysis with center through hole 1, through hole 3 27---electrostriction ceramics-metal oxide filter element 3, there is the porous stainless steel bottom 5 of center through hole 2 24 and voided polytetrafluoroethylene film 25.Note, should ensure that calibrating gas input and purge of gas stainless steel anti-blowpipe 5 and porous stainless steel upper cover 2, the catalysis of porous type far infrared-metal sulfate---electrostriction ceramics-metal oxide filter element 3, porous stainless steel bottom 5 are installed firmly.
The lower end open-ended of calibrating gas detection and purge gas anti-blowpipe 6, communicate with gas sensor 55 spaces, place 60, and its upper end open place, with fastening nut 7 screwing hermetics, thereby form the reproducible gas alarm filter 1 of the self-cleaning of one energy, catalyst activity that is shown in Fig. 2 and Fig. 3.
Fig. 6 provided of the present utility model a kind of can self-cleaning, the gas alarm filter of the catalyst activity regeneration installation diagram in gas alarm probe.In Fig. 6, energy self-cleaning, the reproducible gas alarm filter 1 of catalyst activity are placed in stainless steel gas alarm probe 50.Gas alarm probe 50 be stainless steel cloth 51 foremost, what be close to stainless steel cloth 51 is metal protuberance step 52, can self-cleaning, the gas alarm filter 1 of catalyst activity regeneration is placed on metal protuberance step 52.Energy self-cleaning, supported 53 of the reproducible gas alarm filter 1 of catalyst activity are fixed.What be connected with support member 53 is porous ceramic filter 54.54 one-tenth disc-shapeds of porous ceramic filter, utilize binder to make porous ceramic filter 54 glued together with the stainless steel tube of gas alarm probe 50.Gas sensor 55 is placed on porous ceramic filter 54.With the stainless steel tube 59 of gas alarm probe 50 within, gas sensor 55, support member 53 and there is porous type far infrared-metal sulfate catalysis---the Existential Space 60 between electrostriction ceramics-metal oxide filter element 3 of center through hole 1, through hole 3 27.57 and 58 is pins of gas alarm, can be connected with external circuit by lead-in wire.
The material of porous ceramic filter 54 can be identical with material and the structure of the gas alarm filter 1 of energy self-cleaning, catalyst activity regeneration with structure, also can adopt other porous ceramic film material and structure.The object that adopts porous ceramic filter 54 is in order to coordinate with energy self-cleaning, the reproducible gas alarm filter 1 of catalyst activity, to improve the mobility of monitored gas in space 60, improving the accuracy detecting.
The demarcation of gas alarm filter and the implementation method of self-cleaning function of a kind of energy of the present utility model self-cleaning, catalyst activity regeneration are as follows: as shown in Fig. 2, Fig. 3 and Fig. 6, in the time of calibration gas sensor 55, the fastening nut 7 of can outwarding winding, import calibrating gas, gas sensor is carried out to characteristic demarcation; In addition when have center hole 21 and voided polytetrafluoroethylene film 22 porous stainless steel upper cover 2 through hole or there is porous type far infrared-metal sulfate catalysis of center through hole 1, through hole 3 27---when dust or pollutant are adhered in the hole of electrostriction ceramics-metal oxide filter element 3, the fastening cap 7 of can outwarding winding, import high pressure dry air and carry out blowback cleaning, the dust or the pollutant that are adsorbed on their surfaces are blown off, thereby keep overall porous, guarantee good aeration flammable to tested hydrogen, alkanes etc. and to toxic gas.
Described porous type far infrared-metal sulfate catalysis with center through hole 1, through hole 3 27---porous far infrared-metal sulfate catalytic ceramics ball 19 and the porous electrostriction ceramics--metal oxide spheres 20 of electrostriction ceramics-metal oxide filter element 3 inside are core components of the present utility model.For porous far infrared-metal sulfate catalytic ceramics ball 19 of the present utility model and porous electrostriction ceramics-metal oxide spheres 20, the porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22 is the first line of defences that suppress hydrogen sulfide, sulfur dioxide, hexamethyl silane and so on the interference gas such as organosilicon.
The outer surface of the described porous stainless steel upper cover 2 with center hole 21 and voided polytetrafluoroethylene film 22 is polytetrafluoroethylmaterial materials of porous, its upper surface opens wide, and with have center through hole 1, through hole 3 27 the catalysis of porous type far infrared-metal sulfate---electrostriction ceramics-metal oxide filter element 3 is used in conjunction with, play filtering dust, sulfide interference gas, and the palingenesis of catalyst activity.
Described porous type far infrared-metal sulfate catalysis with center through hole 1, through hole 3 27---the aperture of electrostriction ceramics-metal oxide filter element 3 is 10 ~ 100 μ m.The voided polytetrafluoroethylene film 22 of porous stainless steel upper cover 2 has good repellency and the non-infiltration to most liquid (including the organic solvent of many types).Thereby the free globule that is attached to energy self-cleaning, reproducible gas alarm filter 1 outer surface of catalyst activity is difficult to enter its inside; In addition, it is also quite difficult that steam wants to enter the inside of filter 1.Even so, in the time of the humidity very high (reaching 96%RH) of test environment, even if water or the steam of trace can enter filter 1,, only just entering near porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics--metal oxide spheres 20th district, be just eliminated it.This is because catalytic combustion method gas sensor, semiconductive ceramic formula gas sensor all will be heated to 300～500 DEG C while work, under the heat radiation of high-temperature baking and porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics--metal oxide spheres 20 far infrared fields of line, there are two kinds of variations in this water or steam:
make H2 O and CuSO4 be combined into CuSO4.5H2 O, becomes sky blue anorthic crystal, and H2 O has become the crystallization water, non-free water, and remove.
physical evaporation, becomes steam and spreads out, thereby can keep the drying regime of pneumatic filter 1 inside rapidly.In addition, because polytetrafluoroethylmaterial material has good non-infiltration to most liquid (including the organic solvent of many types), so organic solvent, organosilicon etc. are also difficult for the outer surface of the voided polytetrafluoroethylene film 22 that adheres to porous stainless steel upper cover 2.
Being positioned at described porous type far infrared-metal sulfate catalysis with center through hole 1, through hole 3 27---porous far infrared-metal sulfate catalytic ceramics ball 19 and the porous electrostriction ceramics--metal oxide spheres 20 of electrostriction ceramics-metal oxide filter element 3 inside are second defence lines that the utility model suppresses the interference gas such as hydrogen sulfide, are also the most critical parts of the interference gas such as the utility model opposing hydrogen sulfide.
Fig. 4 is the generalized section of porous far infrared-metal sulfate catalytic ceramics ball of the present utility model 19 structures.
Fig. 5 is the generalized section (for convenience of explanation, the dimension scale of structure sheaf figure being exaggerated) of porous electrostriction ceramics--metal oxide spheres 20 structures.After in the utility model, porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics-metal oxide spheres 20 evenly mix, be placed in there is center through hole 1, porous type far infrared-metal sulfate catalysis of through hole 3 27---electrostriction ceramics-metal oxide filter element 3 inside, and the latter's diameter is 1～3 times of the former diameter.
Porous far infrared-metal sulfate catalytic ceramics ball 19 and porous electrostriction ceramics--metal oxide spheres 20 structures are as follows:
Porous far infrared-metal sulfate catalytic ceramics ball 19 is for example, to be made up of far infrared core body 105, rare earth anion layer 104, multiphase catalyst alloy gas layer 102, surface metal sulfate catalytic reaction layer (: copper sulphate) 101.Core body 105 is positioned at the central authorities of this spheroid, and it is to be that more than 10 material such as metallic copper or copper alloy filament forms by the ratio of medical stone porous ceramic, copper mesh fragment, length over diameter, adopts ceramic technoloigcal process.Rare earth anion layers 104 in Ceramic Balls core body 105 outsides, it is to be more than 10 formations such as metallic copper or copper alloy filament material, Low Temperature Far Infrared wire material (for example: tourmaline powder, zeolite powder, medical stone powder) by the ratio of rare earth anion body material, medical stone porous ceramic, copper mesh fragment, length over diameter, adopts ceramic thick film technique to make.Make again multiphase catalyst alloy gas layer 102 in its outside, the outside of multiphase catalyst alloy gas layer 102 is surface metal sulfate catalytic reaction layers (for example: copper sulphate) 101, it is to be made up of medical stone porous ceramic and copper sulphate material etc., is also to adopt ceramic thick film technique to make.
Porous electrostriction ceramics--metal oxide spheres 20 for example remains, by far infrared core body 105b, rare earth anion layer 104b, multiphase catalyst alloy gas layer 102b, surface metal oxide catalytic reaction layer (: cupric oxide) 101b and forms.Core body 105b is positioned at the central authorities of this spheroid, and it is to be that more than 10 material such as metallic copper or copper alloy filament forms by the ratio of medical stone porous ceramic, copper mesh fragment, length over diameter, adopts ceramic technoloigcal process.Rare earth anion layer 104b in Ceramic Balls core body 105b outside, it is to be more than 10 formations such as metallic copper or copper alloy filament material, Low Temperature Far Infrared wire material (for example: tourmaline powder, zeolite powder, medical stone powder) by the ratio of anion body material, medical stone porous ceramic, copper mesh fragment, length over diameter, adopts ceramic thick film technique to make.Make again multiphase catalyst alloy gas layer 102b in its outside, the outside of multiphase catalyst alloy gas layer 102b be surface metal oxide catalytic reaction layer 101b(for example: cupric oxide), it is to be made up of medical stone porous ceramic, electrostriction ceramics and copper oxide material etc., is also to adopt ceramic thick film technique to make.
Adopt the object of above-mentioned layer structure spheroid to be to provide Low Temperature Far Infrared line, anion body, heterogeneous alloy catalyst function play catalytic reaction and desiccation, and utilize surface metal sulfate catalytic reaction layer (for example: copper sulphate) to realize desulfurization (hydrogen sulfide), utilize cupric oxide and electrostriction ceramics in surface metal oxide catalytic reaction layer to realize desulfurizing agent circulation active regeneration function.Wherein electrostriction ceramics can also utilize vibration or collision mutually, and mechanical friction occurs.Therefore not only can improve catalytic reaction vigor, and because friction, mutual collision come off the dust, the desulfurization intermediate product that cause its adsorption, the contamination resistance of spherical catalysts will be improved, improve service life, play the effect of catalysts active regeneration, thereby promoted catalysts activity.
For spherome surface catalytic reaction dosage is maximized, in order to make specific area maximization that it contacts with hydrogen sulfide, its porosity should be, in order to make its good filtration effect, and fast response time, and also mechanical strength is high.The diameter of porous far infrared-metal sulfate catalytic ceramics ball 19 is 2mm left and right, and the diameter of porous electrostriction ceramics--metal oxide spheres 20 is 2～6mm, and their porosity should be more than 30%, and hole diameter is 10 ~ 100 μ m.
Claims (4)
1. an energy self-cleaning, the gas alarm filter (1) of catalyst activity regeneration, comprise the porous stainless steel upper cover (2) of there is center hole (21) and voided polytetrafluoroethylene film (22), there is center through hole one (23), porous type far infrared-metal sulfate catalysis---electrostriction ceramics-metal oxide filter element (3) of through hole three (27), there is good repellency and " O " shape porous Teflon cylinder (4) to most liquid non-infiltration, there is the porous stainless steel bottom (5) of center through hole two (24) and voided polytetrafluoroethylene film (25), calibrating gas input and purge of gas stainless steel anti-blowpipe (6), fastening nut (7), clamp nut (8), it is characterized in that,
There is center through hole one (23), through hole three (27) the catalysis of porous type far infrared-metal sulfate---electrostriction ceramics-metal oxide filter element (3) is positioned at the inside of " O " shape porous Teflon cylinder (4), the porous stainless steel upper cover (2) with center hole (21) and voided polytetrafluoroethylene film (22) is positioned on " O " shape porous Teflon annulus (4), and the porous stainless steel bottom (5) with center through hole two (24) and voided polytetrafluoroethylene film (25) is positioned under " O " shape porous Teflon cylinder (4), fastening nut (7) is positioned at the top of calibrating gas input and purge of gas stainless steel anti-blowpipe (6), clamp nut (8) is positioned on the porous stainless steel upper cover (2) of have center hole (21) and voided polytetrafluoroethylene film (22), and calibrating gas input and for purge of gas stainless steel anti-blowpipe (6) pass in clamp nut (8) central authorities, both are to be threaded, calibrating gas input and purge of gas for the length of stainless steel anti-blowpipe (6) at least to be able to ensure that its bottom (26) can pass and have center through hole one (23), porous type far infrared-metal sulfate catalysis---electrostriction ceramics-metal oxide filter element (3) of through hole three (27), there is the porous stainless steel bottom (5) of center through hole two (24) and voided polytetrafluoroethylene film (25), the lower end open-ended of calibrating gas detection and purge gas anti-blowpipe (6), communicate with gas sensor (55) space, place (60), and its upper end open place, with fastening nut (8) screwing hermetic.
2. a kind of energy according to claim 1 self-cleaning, the gas alarm filter (1) of catalyst activity regeneration, there is center through hole one (23), through hole three (27) the catalysis of porous type far infrared-metal sulfate---electrostriction ceramics-metal oxide filter element (3) comprising: bottom center has the porous far-infrared ceramic hollow circuit cylinder core shell (17) of through hole three (27), porous electrostriction ceramics-metal oxide spheres (20), porous far infrared-metal sulfate catalytic ceramics ball (19), central authorities have the porous far-infrared ceramic disk (18) of through hole one (23), it is characterized in that,
There is the inside of the porous far-infrared ceramic hollow circuit cylinder core shell (17) of through hole three (27) to be provided with mixed uniformly porous far infrared-metal sulfate catalytic ceramics ball (19) and porous electrostriction ceramics-metal oxide spheres (20) in bottom center, be placed in bottom center and have on the porous far-infrared ceramic hollow circuit cylinder core shell (17) of through hole three (27) and central authorities have the porous far-infrared ceramic disk (18) of through hole one (23), and porous far-infrared ceramic hollow circuit cylinder core shell (17) and porous far-infrared ceramic disk (18) utilize binder to be stained with between the two.
3. a kind of energy according to claim 1 self-cleaning, the gas alarm filter (1) of catalyst activity regeneration, it is characterized in that: described porous far infrared-metal sulfate catalytic ceramics ball (19) is by far infrared core body (105), rare earth anion layer (104), multiphase catalyst alloy gas layer (102), surface metal sulfate catalytic reaction layer (101) forms, it is characterized in that, Ceramic Balls core body (105) is positioned at the central authorities of this spheroid, rare earth anion layer (104) in Ceramic Balls core body (105) outside, multiphase catalyst alloy gas layer (102) in its outside, the outside of multiphase catalyst alloy gas layer (102) is surface metal sulfate catalytic reaction layer (101).
4. the gas alarm filter (1) of a kind of energy according to claim 1 self-cleaning, catalyst activity regeneration, porous electrostriction ceramics--metal oxide spheres (20) is to be made up of far infrared core body (105b), rare earth anion layer (104b), multiphase catalyst alloy gas layer (102b), surface metal oxide catalytic reaction layer (101b), it is characterized in that
Core body (105b) is positioned at the central authorities of this spheroid, rare earth anion layer (104b) in Ceramic Balls core body (105b) outside, be multiphase catalyst alloy gas layer (102b) in its outside, the outside of multiphase catalyst alloy gas layer (102b) is surface metal oxide catalytic reaction layer (101b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282630.8U CN203990109U (en) | 2014-05-29 | 2014-05-29 | The gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282630.8U CN203990109U (en) | 2014-05-29 | 2014-05-29 | The gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203990109U true CN203990109U (en) | 2014-12-10 |
Family
ID=52030184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420282630.8U Expired - Fee Related CN203990109U (en) | 2014-05-29 | 2014-05-29 | The gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203990109U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582295A (en) * | 2016-11-28 | 2017-04-26 | 昆明理工大学 | Piezoelectric ceramic filter membrane and device using same |
| CN111151133A (en) * | 2020-04-08 | 2020-05-15 | 珠海格力电器股份有限公司 | Air purifying device |
| CN113933357A (en) * | 2021-11-18 | 2022-01-14 | 北京化工大学 | Application of polytetrafluoroethylene film in gas sensor, metal pipe cap for gas sensor and nitrogen dioxide sensor |
-
2014
- 2014-05-29 CN CN201420282630.8U patent/CN203990109U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582295A (en) * | 2016-11-28 | 2017-04-26 | 昆明理工大学 | Piezoelectric ceramic filter membrane and device using same |
| CN111151133A (en) * | 2020-04-08 | 2020-05-15 | 珠海格力电器股份有限公司 | Air purifying device |
| CN113933357A (en) * | 2021-11-18 | 2022-01-14 | 北京化工大学 | Application of polytetrafluoroethylene film in gas sensor, metal pipe cap for gas sensor and nitrogen dioxide sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4347732A (en) | Gas monitoring apparatus | |
| US6474138B1 (en) | Adsorption based carbon monoxide sensor and method | |
| CN203990109U (en) | The gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration | |
| JP2008525823A (en) | Method and sensor for detecting ammonia concentration in gas | |
| Levin et al. | Diffusive air sampling of reactive compounds. A review | |
| Matthews et al. | Solid sorbent methodology for formaldehyde monitoring | |
| US20100065442A9 (en) | Flue gas analyser | |
| CN106546637B (en) | A kind of ethyl acetate gas sensor and preparation method thereof | |
| CN212134548U (en) | Catalytic combustion sensor with filtering layer | |
| CN113030221B (en) | Hydrogen sensor and application thereof | |
| CN112595818A (en) | Enhanced gas detection sensor | |
| WO2011055298A1 (en) | Device for the selective detection of benzene gas, method of obtaining it and detection of the gas therewith | |
| CN112557642A (en) | Gas sensor for detecting expired methane | |
| JP2019007796A (en) | Gas sensor and gas alarm | |
| Bethea et al. | Gas chromatographic analysis of reactive gases in air | |
| CN105277591B (en) | Using multiphase catalyst alloy gas, far infrared and negative ion ceramic porcelain filter can blowback cleaning and Fast Calibration gas detection probe | |
| Moseley et al. | Semiconductor gas sensors | |
| CN109991292B (en) | Preparation method of cross gas interference resistant electrochemical ammonia gas sensor catalytic electrode | |
| JP6303211B2 (en) | Gas detector | |
| WO2020138591A1 (en) | Electrochemical gas sensor having double sensing electrode structure | |
| WO2020175994A1 (en) | Capacitive hydrogen sensor | |
| JPS61172045A (en) | Gas detection element with filter | |
| CN216537450U (en) | Refrigerant sensor | |
| Sarif et al. | MOBILE GAS SENSING FOR LABORATORY INFRASTRUCTURE | |
| CN112142093B (en) | Pd-loaded prismatic zinc oxide and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 |