JP2803217B2 - Catalyst plug for storage battery - Google Patents
Catalyst plug for storage batteryInfo
- Publication number
- JP2803217B2 JP2803217B2 JP1237781A JP23778189A JP2803217B2 JP 2803217 B2 JP2803217 B2 JP 2803217B2 JP 1237781 A JP1237781 A JP 1237781A JP 23778189 A JP23778189 A JP 23778189A JP 2803217 B2 JP2803217 B2 JP 2803217B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- storage battery
- ceramic wool
- plug
- packing density
- 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 - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Catalysts (AREA)
- Secondary Cells (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、蓄電池に取付ける触媒栓の改良に関するも
のである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a catalyst plug attached to a storage battery.
従来の技術 蓄電池には、水の電気分解反応によって発生する酸素
・水素ガスを触媒反応によって水に再結合し、蓄電池内
に還流させて電解液の減少をなくすることを目的として
触媒栓が用いられている。2. Description of the Related Art A storage battery is provided with a catalyst plug for the purpose of recombining oxygen / hydrogen gas generated by the electrolysis reaction of water with water by a catalytic reaction and returning it to the inside of the storage battery so that the electrolyte does not decrease. Have been.
このような触媒栓は酸素・水素ガスに活性な白金系金
属を付着させたペレット状触媒を収納しており、この触
媒による触媒反応（H2＋1/202→H2O＋57.8kcal）が発熱
反応であることから、酸素・水素ガスが過剰なとき、あ
るいは触媒の局部のみが集中的に反応したとき、さらに
は振動等により触媒がこすれ合ったときなど、触媒が高
温となり触媒近くの酸素・水素ガスに着火し触媒栓およ
び蓄電池が爆発する危険がある。Such catalysts plugs are housed were deposited active platinum-based metal in an oxygen-hydrogen gas pellets catalyst, the catalyst according to the catalytic reaction (H 2 +1/20 2 → H 2 O + 57.8kcal) fever Since the reaction is a reaction, when the oxygen and hydrogen gas are excessive, when only the local part of the catalyst reacts intensively, and when the catalyst rubs due to vibration etc., the temperature of the catalyst becomes high and the oxygen and hydrogen near the catalyst become hot. There is a risk of explosion of the catalyst plug and storage battery due to ignition of hydrogen gas.
そのため狭隙防爆原理を利用して、触媒が着火源とな
っても火災等が蓄電池内部へ伝播しないよう、防爆性な
る多孔層を触媒と蓄電池内部との間に設けている。Therefore, an explosion-proof porous layer is provided between the catalyst and the inside of the storage battery using the principle of narrow gap explosion prevention so that even if the catalyst becomes an ignition source, a fire or the like does not propagate inside the storage battery.
この多孔層に要求される特性としては、耐熱性・耐薬
品性（耐酸・アルカリ）さらには、振動等により触媒が
こすれ合わずに固定できる弾力性が必要となる。The properties required for the porous layer include heat resistance, chemical resistance (acid / alkali resistance), and elasticity that enables the catalyst to be fixed without being rubbed by vibration or the like.
従来この多孔層としてアスベストが触媒を包んだ形で
使用されていた。アスベストは天然鉱物で耐熱性・耐薬
品性にすぐれ、繊維状であるため弾力性もある。Conventionally, asbestos has been used as the porous layer in a form wrapping the catalyst. Asbestos is a natural mineral with excellent heat and chemical resistance, and it is fibrous and therefore elastic.
又、繊維径が小さいため（0.024〜0.035μ）触媒を包
んだ場合、実質孔径が小さくなって、狭隙防爆性にすぐ
れている。In addition, since the fiber diameter is small (0.024 to 0.035 μm), when the catalyst is wrapped, the pore diameter is substantially reduced, and the narrow gap explosion-proof property is excellent.
発明が解決しようとする課題 しかし、アスベストでは以下のような課題があった。Problems to be Solved by the Invention However, asbestos has the following problems.
（１） 繊維径が小さいため、触媒を保持するために
は、充填密度を上げなくてはならない。しかし充填密度
を上げるとアスベストの通気性が悪くなり、特に酸素・
水素ガスの発生量が多い場合の反応効率が低くかった。(1) Since the fiber diameter is small, the packing density must be increased in order to hold the catalyst. However, if the packing density is increased, the air permeability of asbestos deteriorates,
The reaction efficiency was low when the amount of generated hydrogen gas was large.
（２） アスベストは天然鉱物であるため、多くの種類
の元素が不純物・添加物として含まれており、特に鉄分
等は触媒毒として、触媒作用を劣化させ、触媒栓の寿命
を短くするという問題があった。(2) Since asbestos is a natural mineral, many types of elements are contained as impurities and additives. Particularly, iron and the like serve as catalyst poisons, deteriorating the catalytic action and shortening the life of the catalyst plug. was there.
（３） さらにアスベストは近年発ガン性物質としてさ
まざまな規制を受け、触媒栓組立て作業等における安全
性が問題となってきた。(3) Furthermore, asbestos has been subject to various regulations as a carcinogenic substance in recent years, and safety in assembling a catalyst plug has become a problem.
本発明はこのような問題点を解決するもので、アスベ
ストを用いることなしに組立作業上安全でしかも諸特性
を向上させうる触媒栓を提供することを目的としたもの
である。An object of the present invention is to solve such a problem, and an object of the present invention is to provide a catalyst plug which is safe in assembling work without using asbestos and can improve various characteristics.
課題を解決するための手段 本発明は上記目的を解決するために、アルミナとシリ
カを主成分としたセラミックウールと白金系触媒とが充
填された触媒収納体と、この触媒収納体とは別に蓄電池
内部と外部とを連通する排気パイプとを備えた蓄電池用
触媒栓であって、前記セラミックウールの繊維径は1.0
〜5.0μｍであって、前記触媒容器内における前記セラ
ミックウールの充填密度は0.2〜1.3g/cm3としたもので
ある。Means for Solving the Problems In order to solve the above object, the present invention provides a catalyst container filled with ceramic wool containing alumina and silica as main components and a platinum-based catalyst, and a storage battery separately from the catalyst container. A catalyst plug for a storage battery comprising an exhaust pipe communicating the inside and the outside, wherein the fiber diameter of the ceramic wool is 1.0.
The packing density of the ceramic wool in the catalyst container is 0.2 to 1.3 g / cm 3 .
作用 繊維径が1.0〜5.0μｍのアルミナ・シリカからなるセ
ラミックウールは、繊維強度が増して、充填密度を小さ
くしても触媒を保持することができる。従って触媒を覆
った状態で通気性を上げ、反応効率を向上できる。しか
し充填密度が小さすぎると、狭隙防爆原理による防爆効
果に問題が生じるため、その充填密度は0.2g/cm3以上に
する必要がある。Action Ceramic wool made of alumina / silica having a fiber diameter of 1.0 to 5.0 μm can increase the fiber strength and retain the catalyst even when the packing density is reduced. Therefore, the air permeability can be increased while the catalyst is covered, and the reaction efficiency can be improved. However, if the packing density is too low, there is a problem in the explosion-proof effect by the narrow gap explosion-proof principle, so the packing density needs to be 0.2 g / cm 3 or more.
又、アルミナ・シリカからなるセラミックウールは、
人工鉱物であるため、不純物をほとんど含まず、触媒栓
の寿命を向上させることができる。Ceramic wool made of alumina and silica is
Since it is an artificial mineral, it contains almost no impurities and can improve the life of the catalyst plug.
さらに、粉塵等異物が人間の体内組織にとり込まれる
のは繊維径が１μｍ以下とされており、繊維径が1.0μ
ｍ以上のアルミナ・シリカからなるセラミックウールは
万が一体内に入っても排出され、安全である。Further, foreign matter such as dust is taken into human body tissue only when the fiber diameter is 1 μm or less, and the fiber diameter is 1.0 μm.
The ceramic wool comprising alumina and silica having a length of m or more is discharged even if it enters the whole body, and is safe.
しかも物性面から耐熱・耐薬品性にもすぐれ、諸特性
を向上した触媒栓が提供できる。In addition, a catalyst plug having excellent heat and chemical resistance in terms of physical properties and improved various properties can be provided.
実施例 以下、本発明の実施例について、第１図を参照して説
明する。第１図は本発明の触媒栓の縦断面図であり、こ
の触媒栓はその下方のねじ部で、蓄電池と連結される。Embodiment An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a longitudinal sectional view of a catalyst plug of the present invention, which is connected to a storage battery at a screw portion below the catalyst plug.
通常の充電状態において電池内で発生した酸素・水素
ガスは、白ぬきの矢印で示したとおり、排気パイプ６の
横を通り、多孔性の触媒収納体３を通ってその内部に入
り込みパラジウムを付着させた触媒ペレット４上で反応
し水又は水蒸気として触媒収納体３から出て蓄電池内部
へもどる。万が一過充電により過剰な酸素・水素ガスが
発生した場合は、排気パイプ６を通って外器２上部のア
ルミナを主成分とした多孔質防爆フィルター１をぬけて
外部へ排出される様安全構造をとっている。Oxygen / hydrogen gas generated in the battery in the normal charging state passes through the exhaust pipe 6, passes through the porous catalyst container 3, enters the inside thereof, and adheres palladium, as indicated by the white arrow. The reactant reacts on the catalyst pellets 4 and exits from the catalyst housing 3 as water or steam and returns to the inside of the storage battery. In the event that excessive oxygen / hydrogen gas is generated due to overcharging, a safety structure is provided so that the gas is discharged to the outside through the exhaust pipe 6 through the porous explosion-proof filter 1 mainly composed of alumina at the upper part of the outer unit 2. I am taking.
触媒ペレット４は、触媒収納体３内で前述した５のア
ルミナとシリカを主成分としたセラミックウールでくる
まれている。セラミックウール５は1.0〜5.0μｍの繊維
径をもっており、その充填密度は0.7g/cm3としている。
繊維径が1.0μｍよりも細くなると、吸引等で人間の体
内組織にとり込まれやすくなるので安全上問題である。
又逆に5.0μｍ以上では、繊維強度が増すため、触媒収
納体３内へ触媒ペレット４を包んで挿入する作業性が劣
ってくる。さらにその充填密度が0.2g/cm3以下では、防
爆性を付与するための孔径が大きくなり、防爆性に問題
が生じる。又、逆に1.3g/cm3以上では、防爆性は付与で
きるものの、充填密度が高すぎて、通気性が悪くなり、
触媒への酸素・水素の供給が低下し、又生成した水の外
部への放出能力もおちるため、触媒反応が低下する。The catalyst pellet 4 is wrapped in the catalyst container 3 with ceramic wool containing the above-mentioned 5 as a main component of alumina and silica. The ceramic wool 5 has a fiber diameter of 1.0 to 5.0 μm and a packing density of 0.7 g / cm 3 .
When the fiber diameter is smaller than 1.0 μm, it is easy to be taken into human body tissue by suction or the like, which is a safety problem.
On the other hand, if the thickness is 5.0 μm or more, the fiber strength increases, so that the workability of wrapping and inserting the catalyst pellets 4 into the catalyst housing 3 becomes poor. Further, when the packing density is 0.2 g / cm 3 or less, the pore size for imparting explosion-proof properties becomes large, and there is a problem in explosion-proof properties. Conversely, at 1.3 g / cm 3 or more, although explosion-proof properties can be imparted, the packing density is too high, and the air permeability becomes poor,
Since the supply of oxygen and hydrogen to the catalyst is reduced, and the ability to release generated water to the outside is also reduced, the catalytic reaction is reduced.
第２図は2cpタイプをもちいて前記繊維径1.0〜5.0μ
ｍ、充填密度0.7g/cm3のセラミックウールを使用した場
合と従来のアスベストを使用した場合の反応効率特性で
ある。横軸に水分解電流、縦軸に反応効率をとってい
る。酸素・水素ガス発生量は、ファラデーの法則にした
がい電流に比例する。アスベストを使用した場合は、通
気抵抗が大きいため電気分解電流が5A以上になると反応
効率が落ちてくる。ところがセラミックウールを使用し
た場合、通気抵抗が小さくなったため13Aまで100％の反
応効率を保っている。Figure 2 shows the fiber diameter of 1.0-5.0μ using 2cp type
m, reaction efficiency characteristics when using ceramic wool having a packing density of 0.7 g / cm 3 and when using conventional asbestos. The horizontal axis shows the water splitting current, and the vertical axis shows the reaction efficiency. The amount of generated oxygen / hydrogen gas is proportional to the current according to Faraday's law. In the case of using asbestos, the reaction efficiency decreases when the electrolysis current becomes 5 A or more because of the high ventilation resistance. However, when ceramic wool is used, 100% reaction efficiency is maintained up to 13A due to reduced ventilation resistance.
又、アスベストを使用した場合の触媒栓の寿命は約５
年であったが、セラミックウールの使用により６年以上
の寿命が期待できる。The life of the catalyst stopper when using asbestos is about 5
Although it was a year, a life of 6 years or more can be expected by using ceramic wool.
又、触媒をセラミックウールでつつむ場合、繊維長さ
は特に問題にならないが、3mm以下にすると触媒とセラ
ミックウールを混合して触媒収納体内に入れても、同様
な効果が得られる。When the catalyst is wrapped with ceramic wool, the fiber length does not matter in particular, but when the length is 3 mm or less, the same effect can be obtained even if the catalyst and ceramic wool are mixed and put in the catalyst container.
発明の効果 以上のように本発明によれば、セラミックウールの使
用により、安全で触媒反応効率及び寿命を向上させた蓄
電池用触媒栓が得られる。Effects of the Invention As described above, according to the present invention, a catalyst plug for a storage battery that is safe and has improved catalytic reaction efficiency and life can be obtained by using ceramic wool.
第１図は本発明の一実施例による蓄電池用触媒栓の縦断
面図、第２図は本発明による触媒栓と従来の技術による
触媒栓の反応効率の電流依存性を示す図である。 １……防爆フィルター、２……外器、３……触媒収納
体、４……触媒ペレット、５……セラミックウール、６
……排気パイプ。FIG. 1 is a longitudinal sectional view of a catalyst plug for a storage battery according to an embodiment of the present invention, and FIG. 2 is a diagram showing the current dependence of the reaction efficiency of the catalyst plug of the present invention and the conventional catalyst plug. DESCRIPTION OF SYMBOLS 1 ... Explosion-proof filter, 2 ... External device, 3 ... Catalyst container, 4 ... Catalyst pellet, 5 ... Ceramic wool, 6
…… exhaust pipe.
Claims (2)
クウールと白金系触媒とが充填された触媒収納体と、こ
の触媒収納体とは別に蓄電池内部と外部とを連通する排
気パイプとを備えた蓄電池用触媒栓であって、前記セラ
ミックウールの繊維径は1.0〜5.0μｍであって、前記触
媒容器内における前記セラミックウールの充填密度は0.
2〜1.3g/cm3であることを特徴とする蓄電池用触媒栓。1. A catalyst container filled with ceramic wool mainly composed of alumina and silica and a platinum-based catalyst, and an exhaust pipe separate from the catalyst container and communicating the inside and outside of the storage battery. A catalyst plug for a storage battery, wherein the fiber diameter of the ceramic wool is 1.0 to 5.0 μm, and the packing density of the ceramic wool in the catalyst container is 0.
A catalyst stopper for a storage battery, which has a weight of 2 to 1.3 g / cm 3 .
あり、このセラミックウールと触媒とを混合した特許請
求の範囲第１項記載の蓄電池用触媒栓。2. The catalyst plug for a storage battery according to claim 1, wherein the fiber length of the ceramic wool is 3 mm or less, and the ceramic wool and a catalyst are mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1237781A JP2803217B2 (en) | 1989-09-04 | 1989-09-13 | Catalyst plug for storage battery |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1228534A JPH0393171A (en) | 1989-09-04 | 1989-09-04 | Catalyzer stopper for battery |
| JP1237781A JP2803217B2 (en) | 1989-09-04 | 1989-09-13 | Catalyst plug for storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03101069A JPH03101069A (en) | 1991-04-25 |
| JP2803217B2 true JP2803217B2 (en) | 1998-09-24 |
Family
ID=26528310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1237781A Expired - Lifetime JP2803217B2 (en) | 1989-09-04 | 1989-09-13 | Catalyst plug for storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2803217B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840726U (en) * | 1971-09-17 | 1973-05-23 | ||
| JPS52113327U (en) * | 1976-02-25 | 1977-08-29 | ||
| JPS62201648A (en) * | 1986-03-03 | 1987-09-05 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for decomposing ozone |
-
1989
- 1989-09-13 JP JP1237781A patent/JP2803217B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03101069A (en) | 1991-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TR25214A (en) | CONSIDERING THESE MORTARS FOR SURFIRIC ACID TO PROVIDE SULFIRIC ACID | |
| ATE34638T1 (en) | METAL HALOGEN BATTERY. | |
| JPS58118984A (en) | Sintering and burnable absorbing pellet for nuclear fuel assembly | |
| JP3071439B2 (en) | Respiratory filtration device for removal of tritium-containing water | |
| JP2803217B2 (en) | Catalyst plug for storage battery | |
| WO1993017962A1 (en) | CHEMICAL OXYGEN GENERATING COMPOSITIONS CONTAINING Li2O¿2? | |
| JPH0393171A (en) | Catalyzer stopper for battery | |
| CA2286358C (en) | Protective coating to reduce stress corrosion cracking of zircaloy fuel sheathing | |
| CN212571199U (en) | Battery pack with automatic fire extinguishing function | |
| CN205050566U (en) | Active hydrogen recombiner of non - with wind -powered electricity generation, Thermoelectric conversion function | |
| ES286975U (en) | Chemical oxygen generator for breathing equipment. | |
| CN203915816U (en) | A kind of Self-rescuer | |
| CN114984743A (en) | Battery thermal runaway flue gas processing apparatus and battery | |
| CN108767146B (en) | Protective structure with fire extinguishing function for inhibiting thermal runaway of battery core | |
| JP2851729B2 (en) | Large-capacity colloid storage battery, colloid electrolyte used therefor, and method for producing them | |
| JPH0551202A (en) | Combustion start mixture for chemical oxygen generator | |
| CN109326803A (en) | A kind of hydrogen fuel cell and preparation method thereof | |
| EP0311006A1 (en) | Method for extinguishing chlorosilane fires | |
| GB1405980A (en) | Catalytic gas recombination device for a storage cell | |
| CN207384620U (en) | A kind of activated carbon breathing rescue mask for being conveniently replaceable filter core | |
| JPS57124866A (en) | Closed type lead storage battery | |
| CN207896427U (en) | A kind of aerosol fire-extinguishing electric power cabinet | |
| JPS6040890B2 (en) | A removal agent that removes hydrogen, carbon monoxide, oxygen, etc. from gas. | |
| JPS5678401A (en) | Utilization of metallic hydride and storage tank for hydrogen | |
| RU2107525C1 (en) | Carbon dioxide absorber for oxygen-breathing apparatuses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070717 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080717 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090717 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090717 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100717 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100717 Year of fee payment: 12 |