On-line capacity checking, liquid supplementing and cooling device for lead-acid battery of parallel direct-current power supply

Abstract

The invention discloses an on-line capacity checking liquid supplementing and cooling device for a parallel direct-current power supply lead-acid battery in the technical field of lead-acid batteries, which comprises a sliding frame, a plurality of side-by-side battery frames are connected to the sliding frame in a sliding manner, a water inlet pipe penetrates through the top of each battery frame, and a breather pipe penetrates through the side wall of each water inlet pipe; the inner wall of the water inlet pipe is fixedly connected with the outer wall of the ventilation pipe through a plurality of fixing plates, the inner wall of the ventilation pipe is fixedly connected with a supporting frame, a rotating shaft penetrates through the interior of the supporting frame, and a plurality of rotating blades are arranged in the circumferential direction of the rotating shaft. After butt joint is completed, pure water is poured into the water inlet pipe, cold air is poured into the ventilation pipe, and at the moment, the cold air entering the ventilation pipe drives the stirring assembly to rotate, so that the electrolyte in the battery frame is continuously stirred, and meanwhile, the pure water is added into the electrolyte along with the cold air; therefore, heat is automatically and uniformly dispersed, and instability caused by heat concentration is prevented.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to an on-line core capacity rehydration cooling device for lead-acid batteries connected in parallel direct current power supply. Background technique [0002] The substation is the hub of the power system, and its safe and stable operation is the key to ensuring reliable power supply. The general components of a DC power supply system include: battery packs, charging equipment, DC screens and other parts. The main functions of the substation DC system include: on the one hand, during the normal operation of the substation, it provides the closing DC power supply for the relay protection device and circuit breakers at all levels; on the other hand, when the substation AC power cannot be supplied, the substation DC system can provide relay Electric protection and automatic devices, circuit breaker tripping and closing, carrier communication, etc. provide backup DC power ...

AI Technical Summary

Problems solved by technology

The DC power supplies used in substations are all valve-regulated sealed lead-acid batteries. This type of battery has a low probability of thermal runaway and high safety, but its energy storage density is low, and frequent undercharging and overcharging will make the lead-acid battery greatly reduced activity

[0005] When the DC power supply used in the substation uses a lead-acid battery, due to the long-term charging and discharging operation, the concentration of pure water in the interior increases due to heat, resulting in a decrease in free ions in the pure water and a decrease in the storage capacity. Therefore, the substation For the core capacity and repair of lead-acid batteries, it is necessary to manually add pure water or pure water to the interior of the battery, and the interior will release heat during the addition process. Due to the fixed-point input of the pipeline, the local heat will increase, which will affect the addition. Security, while manual monitoring results in very low efficiency

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