Most of the marine power storage is a lead-acid battery, that is, the battery working principle of the first paragraph. It can be divided into rich liquid-rich and valve-controlled lead-acid batteries, and the rich liquid storage battery needs to fill the standard electrolyte in daily maintenance, and the valve control does not need to fill the electrolyte, that is, what we often say Maintain the battery. This battery is in the control box, which must be employed in the UPS power box. From the structure, it can be divided into monomer and combined. The general monomer is 2V lead-acid battery in the ship to provide an emergency charge and discharge plate to provide an automation system and emergency lighting. This monomer battery has a long life and a large capacity, but the cost is high.Battery parameters that need to be understood in daily maintenance: A lot of parameters related to the battery, just here to introduce our daily management.
(1) Capacity of the battery: Usually the device capacity will be represented by kw or kw.h. But the battery is not like this. In most countries, they are represented by AH-. His meaning is; the standard is based on ten hour discharge rate. For example, a 90AH capacity battery is based on 10 hours. It is theoretically to provide load current 9 amps for 10 hours, which is only theoretically numerous value, and he and ambient temperature, battery performance and other factors have a big relationship.
(2) Discharge Termination Voltage: During battery discharge, the termination voltage will change in different discharge rates and temperatures, and the discharge current can allow the lower value of discharge termination voltage, small current discharge, and termination voltage requirements. Numerical value. The temperature drop, the battery capacity is lowered, and the termination voltage should be improved accordingly. In actual management, the rated discharge voltage is terminated at 85% of the battery. If you continue to over-discharge, battery temperature, and battery blocks are significantly increased, and severely shorten battery life.
(3) Life: The battery is charged once, discharges once, called a charge and discharge cycle, and the battery is used in the case of maintaining a certain capacity, called the battery life. The ship motor operator is actually often used to determine whether the battery life is ending, which is incorrect. The battery should be confirmed from the battery capacity to terminate the voltage and other factors. Even if it is not a battery, the battery is not properly maintained and the correct use is also scrapped.
(4) Floating charge and balance charging (also called strong charging): Floating charge is the battery pack and the charger output and the load is connected in parallel. As the spare power supply, the 24V battery pack can be used simultaneously, the series-connected 24V battery pack floating charge charging voltage Usually adjust between 26.4V-26.8V. For example; charge and discharge plate battery pack, emergency generator battery pack. Some ship reactions emergency generator battery discharge is fast, the voltage opportunity in two or three days fell to 22V or even 20V. The battery pack is required. If the inquiry is verified, the charger is turned off after the battery is fully charged so that the control box power supply of the emergency generator can only be provided by the battery, which means that the user does not understand the necessary, correct charging method. Balance charging (also called strong charging), the multi-line 24V battery pack equilibrium charging voltage is generally 28.2V: the so-called equalization of balance is charging of the balanced battery characteristics, refers to the battery of the battery because the individual is different, temperature Difference, etc., cause the battery-end voltage unbalance, in order to avoid deterioration of this imbalance, it is necessary to increase the charging voltage of the battery pack, activate charging the battery. The concept of equalization charging is proposed in the use of rich liquid-based lead-acid batteries. The current large number of valve-controlled batteries are clearly proposed. "The battery does not form an acid layer, no equalization charging, equalization charging will be counter-valve-controlled battery Damage. For the rich liquid-based lead-acid battery, the specific gravity of the electrolyte during equalization is measured and the necessary adjustment of the electrolyte liquid surface will be made, and the balance charging is generally dedicated, the charging time is controlled to prevent overcharge.
Marine battery management points, the precautions in the following management are from the summary of the actual management of ships.
1. Requirements between the battery: For the rich liquid storage battery, the lighting should be controlled outdoors and posted a ban on smoking sign. There should be a good ventilation device in the room. For emergency generators without a single battery chamber, the rich liquid-rich battery should be stored in a closed battery box, and the battery case has a separate ventilation tube throughout the room, and the battery electrolyte should be formulated. It should be reminded that there is an ordinary flashlight in the battery toolbox, which does not have explosion-proof function, which is the practice of the snake. The valve-controlled battery pack is no longer column. Exterigator should be stored in the battery. Protective aprons, glasses, rubber gloves, measuring tools, specific gravity, eye drops. Keep other items that are not related to maintenance.
2, the battery should be checked, the battery should be checked, and the battery is cleaned. The inspection of the battery should also be included in the battery record book. When replacing the battery, the model, capacity, replacement date is recorded in "battery charging and maintenance record". "
3. Regularly carry out the necessary receipt, clean, and Cafertilin oil to prevent corrosion. The battery chamber remains tidy and does not stacked irrelevant.
4, before charging, check that there should be no video homework near the battery chamber, the upper air cylinder holds the open state, so that the battery chamber maintains a good ventilation. ,
5, battery should be discharged, charging, if there are two sets of batteries to perform their numbers, exchange for charging, discharging, preventing another set of long hours from being damaged, but cut off, overchalting to avoid damaging the battery. The battery of the battery should be recorded in detail before charging, the start and end time of charging.
6. The battery is immediately charged immediately after running the discharge. If the battery is put on holder after discharge, the capacity can be recovered less than the original capacity when charging.
7, the battery should often check the charging equipment frequently, and the battery should not be used for a long time to be overcharged or incarnate. Both states reduce battery life and capacity.
8. When sailing in a cold sea or temperature is below the zero degrees Celsius, the battery should be charged daily, maintain the normal temperature of the battery, or appropriately improve the specific gravity of the electrolyte to avoid freeze.
9. Maintenance-free battery (lead-acid battery) maintenance is carried out according to the requirements of the product specification. The battery operating conditions can be judged by a charging current and a voltage meter (multimeter). Such batteries generally have color-changing power indications, and there are more indicative ball cards in actual use, and the storage battery can return to normal.
10. Pay attention to balance charging time control to prevent overcharge.
11. In the charging process, the respective voltages of the two batteries in series are checked. If there is more difference, one of the cells have been aging or the polar short circuit is displayed. Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery
