A kind of accumulator adding acidification method without extracting acid

Abstract

The invention discloses a storage battery acidification method without acid pumping, comprising the following steps: (1) pouring acid into the storage battery quantitatively; (2) assembling safety valves on each acid injection hole column after the acid filling is completed; (3) ) Rotate the cover on the inner cover of the cover slot to press the safety valve; (4) Put the storage battery in a water bath for internal formation, after the internal formation is completed, it will be graded and grouped. The acid-free storage battery acidification method of the present invention can effectively improve the consistency of the acid content of each cell inside the battery after the battery is formed, that is, the consistency of battery performance is guaranteed; the invention is beneficial to greatly reducing the acid mist in the formation process Discharge; the present invention avoids too many links and related supporting facilities in the traditional chemical formation (installation of acid adding pot + acid pipe insertion + acid extraction pipe + acid extraction pot + acid pumping), and the acid is rarely discharged during chemical formation, improving production and surrounding environment issues.

Description

technical field [0001] The invention relates to the technical field of lead storage battery production, in particular to a storage battery acidification method without extracting acid. Background technique [0002] In the current battery acid addition process, an acid addition pot is generally installed on the battery to ensure that there is enough acid solution to react with the active material during the formation and charging of the battery. Insert an acid pipe into the acid pot to facilitate the discharge of gas inside the battery, and at the same time, the acid solution flows down the acid pipe and penetrates into the battery. At present, the method of manual insertion and extraction is adopted in production: before adding liquid, the one-piece acid adding pot is aligned with the acid injection hole of the battery and inserted, and the acid adding positioning device of the acid adding machine is adjusted so that the acid injection nozzle of the acid adding machine is al...

AI Technical Summary

Problems solved by technology

During the formation process, the acid-adding kettle used for acid assistance is in an open state, and the acid liquid is in direct contact with the air, which leads to different water loss during the formation process due to the different heat of each cell, and the battery is formed inside each cell. performance inconsistencies

[0007] 2) During the formation process, the acid-adding kettle used for acid auxiliary is placed open in the air, and the acid liquid will generate bubbles in the acid-adding kettle, the mouth of the acid-adding kettle and the top surface of the acid-inducing pipe, and the bubbles will be crushed by external pressure , the acid will splash on the acid pot, the outer surface of the battery and the water bath, forming external pollution and due to the serious discharge of acid mist, it is necessary to install acid mist treatment equipment in the formation process

[0011] 5) In the traditional chemical formation process, acid extraction needs to be carried out before the completion of the formation process. Due to the influence of factors such as inconsistent acid extraction actions, differences in acid extraction positions, and acid extraction time differences in this method, it is impossible to guarantee uniform acid extraction in each cell, resulting in The amount of acid in each cell in a battery is more or less, that is, the acid amount of each cell is different, and the acid saturation is different, which will affect the internal oxygen cycle of the battery, resulting in inconsistent battery performance and affecting the acceptance of battery charging. Performance, when multiple batteries are used in series, it will also cause the single cell of the battery to fall behind and cause a single battery in the battery pack to fall behind, which will affect the service life of the battery pack

[0012] 6) The current method of pumping acid is to insert the straw into the liquid injection hole of the battery and suck it with negative pressure. After the suction, the excess acid cannot be recycled directly because it contains many impurities, and it will either be scrapped and pollute the environment or need to be further purified. Re-entry environmental equipment and disposal fees required

At the same time, the negative pressure acid pumping device is not equipped with effective protective measures. The negative pressure acid pumping device sucks sulfuric acid into the vacuum equipment during the suction process, causing corrosion damage to the equipment.

[0013] 7) When pumping acid in lead-acid batteries, if the acid pumping pipe is inserted too deep, it will damage the relatively soft separator in the battery, which will affect the performance of the battery

Such repeated intubation and extubation requires a lot of labor, and the current battery acid pumping operation is completed by workers holding one or more straws to repeatedly pump acid on a battery, which consumes a lot of manpower and production The efficiency is extremely low, so that the production efficiency cannot be improved

At the same time, every time the acid pumping tube is pulled out, the acid solution will be taken out, and the acid solution will splash on the battery, in the water bath and the ground, etc., resulting in acid corrosion on the terminals, dirt on the outer surface of the battery, and excessive pH of the circulating water in the water bath. , workshop environmental protection exceeds the standard, environmental pollution and equipment corrosion, etc.

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