Acid preparation system for storage battery

Abstract

The invention discloses an acid preparation system for a storage battery, which belongs to an acid dilution system in the field of the manufacture of the storage battery. The acid preparation system comprises an acid preparation storage tank and a cooling device, wherein a water inlet and an acid inlet are arranged at the upper end of the acid preparation storage tank; a liquid outlet is arranged at the lower end of the acid preparation storage tank and is connected with an acid preparation pump through a conveying pipeline; the acid preparation pump is connected with the cooling device through the conveying pipeline; the cooling device is connected with a liquid inlet at the upper end of the acid preparation storage tank through the conveying pipeline, so that a circulating conveying pipeline is formed; a density detection device is arranged on the conveying pipeline between the acid preparation storage tank and the cooling device; and a box body is divided into a plurality of chambers through a flow guide buffer device in the density detection device. Therefore, the flow speed of flowing water is kept stable when the flowing water flows through the chambers, the acid preparation precision is improved and the chemical burn accidents caused by labor measurement are effectively reduced.

Description

technical field [0001] The invention relates to an acid solution dilution system in the field of battery manufacturing, in particular to a battery acid mixing system. Background technique [0002] The original conventional acid dispensing system in the domestic battery industry has a low safety factor, high labor intensity, poor acid quality, high acid dispensing temperature and very harsh acid dispensing environment, causing irreparable defects to the quality of the battery. Moreover, sulfuric acid is a highly corrosive liquid. Traditional density sensors are divided into capacitive, tuning fork, and vibrating tube types, etc., which need to be in direct contact with the liquid. Therefore, the sensor has high requirements for corrosion resistance and is expensive. The cost is increased, the service life is short, and the maintenance cost is high. The existing acid distribution system includes acid storage tanks, acid distribution pumps and cooling devices. When performing d...

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Problems solved by technology

[0002] The original conventional acid dispensing system in the domestic battery industry has a low safety factor, high labor intensity, poor acid quality, high acid dispensing temperature and very harsh acid dispensing environment, causing irreparable defects to the quality of the battery

Moreover, sulfuric acid is a highly corrosive liquid. Traditional density sensors are divided into capacitive, tuning fork, and vibrating tube types, etc., which need to be in direct contact with the liquid. Therefore, the sensor has high requirements for corrosion resistance and is expensive. The cost is increased, the service life is short, and the maintenance cost is high. The existing acid distribution system includes acid storage tanks, acid distribution pumps and cooling devices. When performing density detection, manual comparison table calibration is generally used. The emotional changes and the differences in ambient temperature cause a large error in the accuracy of acid preparation (artificial acid preparation is at 25°C, and the set density is 1.345g / cm 3 , the deviation range is ±0.005g / cm 3 ), and because the detection is the liquid density in the acid storage tank, the liquid flow is difficult to control, the flow rate is fast and slow, and the detection accuracy is difficult to guarantee, and because sulfuric acid is a strong corrosive liquid, during the artificial acid It is prone to industrial accidents such as chemical burns and needs to be improved

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