CN2076715U - Explosion-proof dehydrogenation cap for overcharge-resistant accumulator - Google Patents

Abstract

Disclosed is an explosion-proof dehydrogenation cap for overcharge-resistant accumulator which is the structural improvement over the dehydrogenation cap of a conventional lead accumulator, wherein, an acid filtration and explosion suppression mechanism is arranged in the dehydrogenation cap of a conventional lead accumulator, which makes null the possibility of unhealthy consequences caused by over charging a lead accumulator. The utility model is mainly composed of a reacting bed container, an acid filtration and explosion suppression cap and a water backing ring. The acid filtration and explosion suppression mechanism is arranged below the reacting bed container and supported by a base. The hydrogen and oxygen liberated from the inside of an accumulator when over charged can be combined to water quickly and back into the accumulator, while the whole dehydrogenation cap and the accumulator, when over charged, can be used safely for long.

Description

Explosion-proof dehydrogenation cap for overcharge-resistant accumulator

The utility model is the explosion-proof hydrogen-eliminator of a kind of lead accumulator of overcharging resisting.It is the improvement of the hydrogen-eliminator of conventional lead accumulator being carried out structure, and the sour flame proof of filter mechanism promptly is set in the inside of conventional lead accumulator hydrogen-eliminator, thereby makes that institute causes that the possibility of adverse consequences reduces to zero because lead accumulator overcharges.It mainly is made up of reaction bed container (3), filter sour flame proof cover (5) and backwater circle (6) etc.

In the use of fixing lead accumulator, all adopt the technology of hydrogen-eliminator (or being the catalysis bolt) to replace acid-proof flame proof cover technology at present both at home and abroad in succession, so that it is adapted to forbid the underground works, chemical engineering of hydrogen and acid mist and other special engineered.The principle of hydrogen-eliminator is exactly that a large amount of acid mists with charge in batteries latter stage stop in battery, and hydrogen, the oxygen of separating out are entered in the catalytic bed, under the effect of catalyst, make it become water vapour again by overflowing in the corundum reaction bed, being condensed into the globule on the cooling outer cover returns in the electrolyte of battery, thereby prevented the effusion of acid mist, again hydrogen has been eliminated entering the battery chamber simultaneously.Like this, can play explosion-proof effect, can keep the height of battery liquid level again for a long time, prolong the maintenance period of storage battery.Yet, owing to selecting improper to the material of cooling outer cover or not offering escape vents, the excess air of failing in time to drain is overstock in storage battery, be easy to cause the accident of the quick-fried battery of drum to take place; If the reactor of hydrogen-eliminator is designed to opening, can makes condensed water drop onto again to cause catalyst to make moist in the reaction zone and cause actively reducing or losing efficacy from the top.

The purpose of this utility model just is to avoid above-mentioned the deficiencies in the prior art place, and a kind of whole hydrogen-eliminator and storage battery long-term safely and reliably explosion-proof hydrogen-eliminator of overcharging resisting that uses under the situation of overcharging that the rapid synthetic water of hydrogen, oxygen of separating out in the storage battery returned can ensure in the battery chamber is provided.

In order to reach the said above-mentioned purpose of the utility model, this hydrogen-eliminator portion within it is provided with the sour flame proof of filter mechanism, and its reaction bed container (3) then is fastened on the top of the sour flame proof of filter mechanism by pottery or asbestos support (4).Filtering sour flame proof mechanism then is to be snapped onto on the backwater circle (6) by the sour flame proof cover of filter (5), and its interface can be bonding with inorganic bond or heat-resisting silicon rubber.In order to make the water in the condensation of cooling outer cover (2) return the battery chamber, its backwater circle (6) is to be made by the corundum of handling without hydrophobic.

In order to make effect of the present utility model desirable more, this hydrogen-eliminator has adopted the metallic aluminium or the glass of good heat conduction effect to cooling outer cover (2), is condensed into aqueous water as early as possible so that react the water vapour that generates; Because the granularity of corundum spare and thickness have determined the relation of aperture, porosity and flame, gassing, also its whether flame proof decided in rhymed formula.Therefore, the granularity of the corundum spare that the utility model adopted is generally 60(or 36～46), thickness is 5mm(or 10～13mm).Like this, temperature is raised to the hydrogen and oxygen gas mixture detonation both making excessive charging current make reaction bed inner catalyst overload, its flame can not be discharged to yet the outside cause it around bigger hydrogen and the oxygen of concentration fire.So, be absolute safety of sympathetic initiation.

The drawing of accompanying drawing is described as follows:

1--ease gas hood 2--cooling outer cover 3--reaction bed container 4--support

5--filters sour flame proof cover 6--backwater circle 7--pallet 8--base

After hydrogen-eliminator has adopted special construction of the present utility model, the hydrogen and oxygen gas mixture effusion that has acid mist at storage battery enters in the filter acid flame proof cover (5) of hydrogen-eliminator, because the corundum material of this flame proof cover is handled through hydrophobic, so it can stop sour and passing through of steam and only allow hydrogen and oxygen to pass through; Hydrogen and oxygen then the corundum shell by reaction bed container (3) enter heat and should carry out combination reaction in the bed, the water vapour of its generation then is condensed into the globule by reaction bed container (3) shell on the cooling outer cover, and flow in the pallet (7) along outer cover (2), flow back in the battery chamber through backwater circle (6) again.Hydrogen that overcharging has little time to disappear falls and oxygen and few partly steam then are disposed in the atmosphere by ease gas hood (1) and go.

Claims (4)

1, the explosion-proof hydrogen-eliminator of overcharging resisting lead accumulator, this hydrogen-eliminator is improved the structure in the conventional lead accumulator hydrogen-eliminator to form, it is characterized in that in conventional lead accumulator hydrogen-eliminator, being provided with the sour flame proof of filter mechanism, this filters the below that sour flame proof mechanism is arranged on reaction bed container (3), and is held up by base (8).

2, according to the explosion-proof hydrogen-eliminator of the said overcharging resisting lead accumulator of claim 1, it is characterized in that filtering sour flame proof mechanism is to be snapped onto on the backwater circle (6) by the sour flame proof cover of filter (5).

3, according to claim 1 or the explosion-proof hydrogen-eliminator of 2 said overcharging resisting lead accumulators, it is characterized in that filtering sour flame proof cover (5) is to make through the corundum material that hydrophobic is handled, and backwater circle (6) is to make without the corundum material that hydrophobic is handled; Cooling outer cover (2) and pallet (7) then can be metallic aluminium or glass.

4,, it is characterized in that reaction bed container (3) and the sour explosion-proof mechanism of filter tighten up by pottery or asbestos support (4) to combine as a whole according to the explosion-proof hydrogen-eliminator of the said overcharging resisting lead accumulator of claim 1.