Author ：Iflowpower – Portable Power Station Supplier
Battery drum causes 1, ventilation hole clogging, such as the vent hole clogging or unlessed, in the absence of too long or high charging time, which will gradually accumulate, resulting in the pressure of the battery shell The larger, finally cause the battery to bully. 2, the charging time is too long, when the battery charging current is too large or the charging time is too long, there will be a lot of gas. In addition, the current is too large or the charging time will also cause the electrolytic liquid temperature to increase rapidly, and this is easy to cause the battery to rise.
3, the battery polar plate is vulcanized, such as vulcanization of the polar plate of the battery, then in the charging process, the single voltage and the electrolyte temperature will rise rapidly, the appearance of the bubble is earlier, and the reaction is dramatic, it is easy to cause this time. Battery tumble. 4, the bundles of the battery inner plate and polar pillar and the bush discharge are not strong.
When the bundle of the battery internal plate is not firm, if the high current discharges, the welding is too fine or contacts the contact point. Inc. causes fire, ablation, this will appear sparks, ignite the hydrogen oxygen mixture of the battery, resulting in the battery explosion.
5, the electrolyte viscosity of the electrolyte is large, such as the viscosity of the electrolyte, which is likely to cause a slow speed of the penetrating plate pores, and the internal resistance is increased, so that the voltage drop in the inner block in the discharge increases. This will cause the electrolyte temperature rise rapidly, and there is a large amount of gas, so that the gas pressure inside the battery increases, resulting in the battery drums. 6, the amount of electrolyte is too small to believe everyone understands that the battery will cause the electrolyte or distilled water after using a period of time.
At this time, add electrolyte or distilled water. After the electrolyte is reduced, the charge over charge will occur, and it will even cause an explosion. 7, the charger is damaged when the charger is damaged or the generator on the engine is damaged, which is likely to cause a drastling reaction in the battery, so that a large amount of gas is caused to cause the battery to rise.
How to prevent battery drums 1, control the voltage, current. As mentioned above, excessive voltage or current is easily caused by battery drums, so controls voltage and current. 2, try to control the charging time, do not let the charging time too long, prevent over charge.
3, choose a better charger, once found problems, timely inspection or replacement, prevent the battery to rise. 4, during the charging process, to ensure that the points are firm, because the wiring point will make sparks, which causes hidden dangers for battery bulge. 5, ventilation hole guarantee timely smooth.
In normal maintenance, clean up the impurities around the battery in a timely manner. 6, check whether the battery housing has cracks, whether the electrolyte leaks. Because the electrolyte is leakage, it may penetrate into the cable or circuit, thereby causing connectivity, spark.
7. Timely exclude internal short circuit and electrode plate vulcanization in the battery. Spark in the internal short circuit in the battery, thereby detonating the hydrogen oxygen mixing gas, and the electrode plate vulcanization will cause a large amount of gas inside the battery.
Therefore, it should usually check whether the internal portion of the battery is shorted in time, whether there is a vulcanization. 8. It is forbidden to fire on the positive and negative pillars of the battery such as cables such as cables, which is easy to cause explosion of the aerobic hydroxide gas, and severe people will even harm personal safety.
9. When maintaining electric equipment, the flammable gas inside the battery should be excluded. 10.
Timely check the amount and density of electrolytic liquid. This will protect the battery to a large extent to prevent battery drums. Three reasons for exploding 1.
Introducing the battery shell explosion by the battery shell exploded by lead-acid battery, in particular, in particular, the charging end is overcharged, water is decomposed into hydrogen and oxygen, short circuit, severe vulcanization and charging When the electrolyte temperature rises sharply, it will evaporate the water, when the vent hole cover is plugged, because the gas is too late to overflow, the pressure inside the battery will rise, first cause the battery cell to deform, The pressure reaches a certain pressure will burst from the battery slot cover or other weaknesses, which is a physical process. When the internal pressure of the battery is higher than 0.25 MPa, the battery is burst, and the burst position is located at the angle of the trough hot air bonding or stress concentration.
2. Hydrogen is meticulous, and the explosive limit of the battery explosion H2 and O2 mixed gas formed by H2 is H2 4% -96%, H2 and air mixed gas of H2 and air is a 4% -74 of the mixed gas volume. %.
If 80% of the charge amount is used in electrolytic water, the H2 content inside the battery is greater than the explosion range. When the amount of hydrogen in the battery or the amount of hydrogen is accumulated to the explosion limit, it will form an explosion, which is an explosion. Chemical reaction.
Studies have found that the explosion of the battery belongs to the branched explosion reaction. There are too many such explosions that occur in the case of overcharge, if there is a spots in the internal column, wearing welding, etc. A qualified battery does not have a self-heating explosion in normal use conditions.
3. Due to the blockage of the battery exhaust hole, the battery is burst, burst causing the battery vibration, and the pole pillar is not in prison, thereby forming an explosion. Preventing the method of battery explosion 1, control charging, but charging to reduce gas precipitation.
The fire is strictly forbidden to open the fire, keep ventilation. 2, in charge, the terminals should be reliable, not because the spark appears. 3, use low pressure constant pressure charging in use, less departure.
4, prevent battery shell crack, electrolyte osmosis. 5, keep the battery cover dry, clean. 6, often check the exhaust hole of the battery hose, keep the exhaust hole smooth.
7, control the liquid level of the battery to ensure that the liquid surface is within the specified range, the electrolyte must not overflow. 8. The battery terminal connecting wire should have a lower contact resistance and a larger contact pressure, and apply Vaseline to the connection at the connection to prevent the emergence of sparks from entering the battery inside, and igniting combustible gas.
In the usual use of the battery, as long as the battery is often checked, the problem is found in time, the problem is tuned, and the battery bulge is not so easy to appear. Therefore, in daily maintenance, you must remember to check the battery! (Source: UPS application network).
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