JPS5910543B2 - Catalyst device for storage batteries - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a catalyst plug for a storage battery that includes a built-in catalyst that combines oxygen and hydrogen gas generated inside the storage battery.

Conventionally, as shown in FIG. 1, this type of catalyst plug has a catalyst container 3 containing a catalyst 2 placed inside a plug body 1, and the gas generated in the storage battery is passed through the gas inlet 4 through the plug body. Opposition 1
It flows into the storage battery and reacts with the catalyst 2, chemically combining oxygen and hydrogen gas and converting it into water vapor, which is further cooled and condensed to form water, which is then refluxed into the storage battery. Maintenance type storage batteries were provided.

However, when a large amount of gas flows into a large capacity storage battery, etc., in order to maintain the corresponding water supply efficiency, the amount of catalyst 2 must be increased, so it is necessary to store it. The catalyst container 3 and the opposing stopper 1 will also be made to correspond to this, but in cases where the area of the top surface of the lid of the storage battery is narrow or where there is a height restriction on the storage battery installation location. Since the stopper placement 1 will also be subject to restrictions, it should be adjusted according to the catalyst container.
It was not possible to increase the size of the opposing plug body 1 or make it taller, and it was difficult to meet the above-mentioned restrictions. Note that 5 is a support plate having some gas flow holes 6, and 7 is an exhaust wing 9 provided on the top cover 8 of the plug body, which is a screw portion for screwing into the storage battery. The present invention eliminates the above-mentioned drawbacks, reduces escape of unreacted gas, supplies water without leaking through an explosion-proof filter, improves gas reaction efficiency, and acts and reacts in accordance with the amount of incoming gas. The present invention provides a catalyst device for a storage battery that is capable of supplying water and has a structure that can also cope with restrictions on the installation location.

That is, a catalyst plug mounting socket having a plurality of opposing mounting ports for plugs is installed in the catalyst plug mounting port on the surface of the upper lid of the storage battery container, and a pointed catalyst is inserted into the catalyst plug external device mounting port of the socket. A catalyst plug main body having an exhaust hole at the opposite end of the plug body and an explosion-proof filter containing a catalyst body in the center is mounted laterally. An embodiment of the present invention will be described.

11 and 11' are opposed pointed catalyst plugs made of acid-resistant and heat-resistant ebonite or synthetic resin; 12;
12' is the catalyst plug body 11 that is mounted in a suitable manner such as by screwing.
, 11', the plug upper lids 13, 13' have some gas flow holes 14, 14', and are connected to the catalyst plugs 11, 1 opposite to each other.
a supporting plate 15, 15' fixed in a suitable manner to 1';
A porous explosion-proof filter A is made of a ceramic body made by sintering alumina or quartz powder, etc., and the oxygen and hydrogen gases flowing into the opposing catalyst plugs 11 and 11' are chemically combined inside. Catalyst bodies 16, 162 are housed in which platinum, palladium, or the like suitable for synthesizing water is adhered to an alumina carrier.

17, 17' are porous explosion-proof filters 15, 151 and the plug upper lid 12, 122, and vent pipes 18, 18' are interposed therebetween; B, 19, 192 are the plug upper lid 12; , 122 are bored to communicate with the holes of the ventilation pipes 18, 18'.

20 and 2' are the base portions of the catalyst plug outer containers 11 and 112, and are screwed into the mounting holes 22 and 2γ provided in the plug outer container mounting socket 21 with screws.

A plurality of mounting holes 22, 222 are suitably formed in the side circumferential wall of the plug external device mounting socket 21, and the catalyst plug external device 11 is used when used in a storage battery etc. with a small amount of inflow gas.
, 1V is small, for example, when there is only one, the installation ports other than the one concerned may be used by closing them with, for example, blind plugs or bolts. The plug external device mounting socket 21 is molded from the same material as the catalyst plug external device 11, 1'', and its lower end 23 has a socket for attaching the catalyst device on the top cover of the storage battery case, an adapter, etc. A screw for screwing is provided. 24 is a gas inlet.

Next, the gas generated in the storage battery rises from the gas inlet 24, enters the plug outer device mounting socket 21, and passes through the catalyst plug outer device 11, 11' along the path shown by the solid line arrow to the porous structure. The catalyst body 1 passes through the explosion-proof filter Al5, l5'.
6,162, becomes water vapor, is cooled and condensed, becomes water and flows back into the storage battery as shown by the dotted line arrow, and if the internal pressure inside the plug becomes positive with respect to atmospheric pressure, it will be generated. The water vapor is passed through the ventilation pipes 18 and 182 to the exhaust hole 1.
The catalytic reaction → water return action in which water is discharged from 9 and 19' into the outside air is exactly the same as in the conventional structure, but in the present invention, multiple pointed catalyst plug external containers are installed laterally. As a result, the escape of unreacted gas is small, and the water vapor condensed on the upper inner wall flows down along the inner wall without leaking through the explosion-proof filter, improving the gas reaction efficiency. Plug external device mounting socket 2 as required
One or more catalyst plugs can be screwed into the mounting ports 22, 222 opened in 1, depending on the amount of gas, and can be attached or removed depending on the amount of gas at that time. Since the cap is attached to the side peripheral wall of the external device mounting socket 21, it does not extend upwardly, but only in the horizontal direction parallel to the top cover of the storage battery case. It can be attached to the top cover of a rectangular battery case in the horizontal direction, such as when attaching a catalyst plug to a cell.

As mentioned above, the present invention improves the gas reaction efficiency because the escape of unreacted gas is small and water can be returned without leaking the explosion-proof filter, and it is also possible to improve the gas reaction efficiency and to solve This catalyst device has extremely great industrial value, as it can accommodate limitations such as the area of the top cover of the battery case.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional storage battery catalyst plug, and FIG. 2 is a sectional view of a storage battery catalyst device of the present invention. 21 is a socket for attaching a plug external device, and 22 and 2γ are attachment ports.

Claims (1)

[Claims] 1. A socket with multiple mounting holes on the peripheral wall is attached to the catalyst plug mounting port of the battery container lid, and an exhaust hole is provided at the tip of the pointed catalyst plug outer container in the mounting port of the socket. What is claimed is: 1. A catalyst device for a battery, characterized in that a catalyst plug body having an explosion-proof filter housing a catalyst body in the center is mounted laterally.