Acid mixing system of lead-acid storage batteries

Abstract

The invention discloses an acid mixing system of lead-acid storage batteries. The acid mixing system comprises an acid preparing tank, a cooling device and an acid preparing pump. An acid injecting tube, an acid liquor outlet tube, an acid liquor return tube and a liquidometer are arranged on the acid preparing tank. A mixer is arranged close to the bottom in the acid preparing tank. An exhaust device is arranged on the acid injecting tube. A pressure emptying device is arranged on the liquidometer. An acid liquor concentration detecting device is arranged on the acid liquor return tube. By the arrangement of the mixer, the mixing can be uniform. By the adding of the exhaust device, air in the acid injecting tube is prevented from forming air block which blocks the smooth injection of concentrated acid. By the adding of the pressure emptying device, the accuracy of the measurement is ensured. By the arrangement of the concentration detecting device, redundant mixed cycle is avoided on the premise that the accuracy of the measurement is further ensured, and the production efficiency is ensured.

Description

technical field [0001] The invention relates to an acid mixing system for preparing acid solution for lead-acid batteries. Background technique [0002] The electrodes of lead-acid batteries are composed of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. Lead-acid batteries are widely used in various industries due to their stable voltage and low price. In the production process of lead-acid batteries, acid preparation is an extremely important step. [0003] Acid matching is usually done by an acid matching system. Such as figure 1 As shown, the current acid distribution system usually includes an acid distribution tank 1, a cooling device 2, an acid distribution pump 3, an acid injection pipe 4, a water injection pipe 5, a liquid level gauge 6, an acid output pipe 7, and an acid return pipe 8. The acid mixing tank 1 is a tank with a set volume, and pure water and concentrated acid are mixed in the acid mixing tank 1 during the acid mi...

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Problems solved by technology

[0010] In order to solve the problems of low acid dispensing efficiency and uneven acid concentration distribution in the lead-acid battery acid dispensing system of the above-mentioned prior art, the present invention provides a lead-acid battery acid dispensing system. , and introduce the acid injection pipe into the mixer, so that the concentrated acid and pure water are mixed in the mixer, which improves the acid mixing efficiency; ②By adding an exhaust device to the acid injection pipe, the concentrated acid enters the acid injection pipe Exhaust the air in the initial stage to avoid the stagnation of the contact surface between concentrated acid and pure water in the acid injection pipe due to air resistance, and avoid damage to the acid injection pipe due to the heat generated when the concentrated acid and pure water are mixed; ③ through the liquid level gauge Add a pressure evacuation device. Before measuring the liquid level in the acid distribution tank through the liquid level gauge each time, first press compressed air into the liquid level gauge through the pressure evacuation device to empty the liquid in it. Then measure to ensure the accuracy of the liquid level display

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