Cooling and reflux device of evaporated water for lead acid accumulator free of liquid feeding

Abstract

The invention relates to an evaporative water cooling and reflux device of a liquid-adding-free lead-acid storage battery, in particular to a device which leads the lead-acid storage battery to be free from liquid-adding, which comprises a battery case internally provided with an acid liquor trough, a case cover and a uni-directional safety valve arranged on the case cover, as well as a condensing reflux trough filled with coolant, wherein, the condensing reflux trough is fixed at the inner side of the case cover, the outer wall of the condensing reflux trough is compactly matched with the inner wall of the battery case; the condensing reflux trough is internally provided with a siphon pipe array group which is distributed all over the trough and an overflow pipe. Both the siphon pipe and the overflow pipe are S-shaped bent pipes, and a certain amount of coolant is pre-added into the siphon pipe and the overflow pipe. The device of the invention leads steam and evaporative water to rise and enter the siphon pipe when the battery is charged or used, then the steam and the evaporative water are cooled by the coolant in the pipe and the coolant in the condensing reflux trough outside the pipe, thus non-condensable gases are discharged by the uni-directional safety valve after filtration and separation from the water are realized; the condensed water enters the condensing reflux trough and reflows into the acid liquor trough through the overflow pipe so as to achieve the aim of avoiding the loss of volume after the loss of water.

Description

technical field [0001] The invention relates to an evaporation water cooling and returning device for a lead-acid storage battery, in particular to a device for exempting the lead-acid storage battery from adding liquid. Background technique [0002] Due to its low price, easy access to raw materials, and sufficient reliability in use, lead-acid batteries are used in many applications such as electric bicycles and electric vehicle batteries. Lead-acid batteries use the electrolysis of the positive and negative plates and the electrolyte to achieve the effect of charging and discharging. During the electrolysis process, a large amount of heat will be generated, which will reduce the electrolyte due to evaporation, and at the end of charging, the water will be decomposed into Hydrogen and oxygen gas are precipitated, which requires the user to perform maintenance such as adding liquid after using it for a period of time, causing inconvenience. The main reason that affects the...

AI Technical Summary

Problems solved by technology

Lead-acid batteries use the electrolysis of the positive and negative plates and the electrolyte to achieve the effect of charging and discharging. During the electrolysis process, a large amount of heat will be generated, which will reduce the electrolyte due to evaporation, and at the end of charging, the water will be decomposed into Hydrogen and oxygen gas are precipitated, which requires users to perform maintenance such as adding liquid after using for a period of time, causing inconvenience

The main reason that affects the life of lead-acid batteries is the vulcanization and water loss of the plates. Due to the lack of sealing technology, valve-regulated sealed lead-acid batteries still have gas leakage during normal use, and at the same time, water is inevitably discharged. Especially in the environment where the battery is often overcharged, the water loss in the battery is accelerated, which can easily cause the lead-acid battery to dry up, and then form a short circuit to make the capacity disappear and shorten the service life

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