CN113640687A - Charge-discharge test method for storage battery of overhaul vehicle - Google Patents
Charge-discharge test method for storage battery of overhaul vehicle Download PDFInfo
- Publication number
- CN113640687A CN113640687A CN202110798924.0A CN202110798924A CN113640687A CN 113640687 A CN113640687 A CN 113640687A CN 202110798924 A CN202110798924 A CN 202110798924A CN 113640687 A CN113640687 A CN 113640687A
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- storage battery
- charge
- charging
- discharge
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- 238000003860 storage Methods 0.000 title claims abstract description 63
- 238000010998 test method Methods 0.000 title claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 30
- 239000000178 monomer Substances 0.000 claims abstract description 26
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 238000007599 discharging Methods 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 8
- 229940099259 vaseline Drugs 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 208000032953 Device battery issue Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
Abstract
The invention discloses a charge-discharge test method for a storage battery of an overhaul vehicle, which comprises the steps of preparing before a charge-discharge test, performing a discharge test and a charge test, pressing a corrugated gasket on a connecting piece and fixing the corrugated gasket on storage battery monomers through bolts, placing a separation blade between the storage battery monomers, performing the discharge test and the charge test on the whole storage battery pack, comparing unqualified monomers by setting parameters and measuring record data, solving the problems of poor activity and insufficient capacity recovery of the storage battery near the end of the service life, and passing the storage battery in the emergency load test of the train storage battery in the follow-up overhaul. The resource waste of the whole storage battery replacement caused by unqualified test is avoided. The economic cost is saved by more than 200 ten thousand yuan for the overhaul of the No. 1 line.
Description
Technical Field
The invention relates to the technical field of storage batteries, in particular to a charge and discharge test method for a storage battery of an overhaul vehicle.
Background
The battery system of the Shenyang subway No. 1 line overhaul vehicle is poor in activity near the end of the service life of a product due to long delivery time, and the conditions that the specific gravity does not reach the standard and the capacity is not recovered sufficiently for many times appear in the overhaul process. The vehicle was verified to have this problem before and after major repair. The fundamental reasons for this are that the battery has a long service life and the previously used maintenance methods are too rough, so that the presence of unqualified monomers in the whole body always affects the whole body. If the storage battery is replaced as a whole, the cost of the whole overhaul vehicle is increased by at least 200 ten thousand yuan and the verification time is more than 6 months, and the whole overhaul plan is influenced.
In a conventional maintenance method, two groups of storage batteries (76 batteries in each group) of a train are directly charged and discharged in a unified manner, and charging and discharging operations are performed by using default parameter settings of a charging and discharging machine. It is not possible to distinguish whether there is an unacceptable battery cell. Unqualified storage battery monomers are mixed in other monomers to work on a vehicle, which easily causes storage battery failure, even causes serious problems such as liquid shortage, overheating and fire.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a charge-discharge test method for a storage battery of an overhaul vehicle, which comprises the steps of picking out unqualified monomers and replacing qualified products by an operation method in the process of overhaul of the vehicle. The capacity of the storage battery pack is recovered to the maximum extent, and the service life of the product is prolonged.
The technical scheme adopted by the invention is that the charge-discharge test method for the storage battery of the overhaul vehicle comprises the following steps:
Preferably, the corrugated gasket is a D8 butterfly gasket.
The invention has the beneficial effects that: after the operation method is practically applied, the problems of poor activity and insufficient capacity recovery of the storage battery near the end of the service life are solved, and the storage battery passes through the emergency load test of the train storage battery in the follow-up overhaul. The resource waste of the whole storage battery replacement caused by unqualified test is avoided. The economic cost is saved by more than 200 ten thousand yuan for the overhaul of the No. 1 line.
Drawings
FIG. 1 is a schematic view of the battery of the present invention ready for installation prior to charging and discharging.
The labels in the figure are: 1-bolt, 2-corrugated gasket, 3-connecting piece and 4-storage battery monomer.
Detailed Description
Referring now to fig. 1 of the drawings, the battery system of Shenyang subway line 1 overhaul vehicle has a long delivery time near the end of the product life. The charging and discharging operation must be fully ensured for safety. When charging a battery, when the battery is refurbished or charged with a small current in a vehicle operation, water in the battery is decomposed to form a mixed gas of hydrogen and oxygen (explosive gas), which may cause the gas to explode even if a low level of energy is given.
The charging and discharging process of the storage battery is far away from any ignition source, including open fire, smoke, embers with sparks, sparks splashed during grinding, hot surface higher than 300 ℃, electrostatic discharge and the like, and an insulating tool which cannot spark is used during operation.
Preparation before charge-discharge test: as shown in fig. 1, a connecting sheet 3 which is cleaned and dried in the sun, a new fastening bolt 1(M8 × 14 fixing bolt) and a new corrugated gasket 2 (updated D8 butterfly gasket) are installed, a separation blade needs to be placed between each two batteries during installation so as to facilitate charging and discharging and heat dissipation during operation, and during disassembly, a short circuit sparking phenomenon caused by mutual contact of a ratchet wheel or the connecting sheet 3 is prevented. 2. Respectively applying a torsion of 20N.m to the bolts 1 fastened by the ratchet wrench; meanwhile, Vaseline is required to be coated when the connecting piece 3 is connected, so as to protect the anode and cathode of the storage battery from oxidation and lubrication. 3. The placed storage battery pack is conveyed to a charging station, a storage battery ventilating cover is opened, and a rubber pipe is inserted to prevent the electrolyte of the storage battery from splashing. 4. And connecting the positive and negative electrodes of the storage battery charging and discharging machine with the positive and negative electrodes of the storage battery pack in a corresponding connection mode. 5. The negative electrode of the storage battery is connected with the output negative electrode of the charge and discharge machine; the storage battery packs are connected in a cross-connection mode; the positive pole of the storage battery is connected with the output positive pole of the charge and discharge machine. 6. Two ventilation devices are activated simultaneously.
And (3) discharge test: 1. in the first discharge test, parameters are set to discharge each monomer voltage to 1.0V, the total voltage of 76 batteries is 76V, the discharge time is set to 4 hours, the machine is automatically stopped when the discharge voltage reaches 76V or 4 hours, and corresponding data such as the discharge time are recorded. 2. And closing the battery charging and discharging machine and opening the QF 2. QF2 controls 3 parallel charging and discharging machines. 3. And respectively turning on the control switches of the two charge and discharge machines. 4. Setting discharge parameters: 1. selecting a discharge mode; 2. setting a discharge current 28A and a discharge termination voltage 76V; 3. the discharge time was 4.5 hours, and the discharge capacity was not changed by default. 5. And after the parameters are set, the charging and discharging machine formally starts to discharge, monomer voltages of 3h, 4h and 4.5h are respectively recorded, if part of the batteries in the second discharging time is less than 4.5 hours, namely less than 1V, a third charging and discharging cycle is needed, and if the discharging time of the storage battery still cannot be recovered in the third charging and discharging test is 4.5 hours, the unqualified monomers are replaced by replacing. Standing for 12h after completion.
And (3) charging test: 1. in the first charging test, the parameter is set to charge each monomer voltage to 1.9V, the total voltage of 76 batteries, namely 144.4V, is 144V, the charging time is set to 7 hours, the machine is automatically stopped when the charging voltage reaches 144.4V or 7 hours, and corresponding charging time and other data are recorded. 2. And closing the battery charging and discharging machine and opening the QF 2. QF2 controls 2 parallel charging and discharging machines. 3. And respectively turning on the control switches of the two charge and discharge machines. 4. Setting charging parameters: 1. selecting a charging mode; 2. the charging current 28A is set. The upper limit of the charging voltage is 144V; 3. the charging time is 7 hours, and the default discharge capacity is not changed; 4. and starting a charging program after the parameter setting is finished until the automatic shutdown is carried out. 5. And recording the charging time after the charging is finished, and standing the storage battery pack for 12 hours. At the second or third charge, the cell voltage was measured using a multimeter. And if the discharge time of the battery in the second discharge time part is less than 4.5 hours, namely the battery monomer is less than 1V, a third charge-discharge cycle is required, and if the discharge time of the battery still can not be recovered in the third charge-discharge test to reach 4.5 hours, the unqualified battery monomer is replaced.
Claims (2)
1. The charge-discharge test method for the storage battery of the overhaul vehicle is characterized by comprising the following steps of: the method comprises the following steps:
step 1, preparing before a charge and discharge test, 1) pressing a corrugated gasket on a connecting piece and fixing the corrugated gasket on storage battery monomers through bolts, placing separation blades between the storage battery monomers, 2) and respectively applying a torsion force of 20N.m to the bolts fastened by a ratchet wrench; coating vaseline when fixing the connecting sheet, 3), conveying the placed storage battery to a charging station, opening a storage battery ventilating cover, inserting a rubber pipe, 4), and connecting the negative electrode of the storage battery with the output negative electrode of a charge and discharge machine; the storage battery packs are connected in a cross-connection mode; the positive electrode of the storage battery is connected with the output positive electrode of the charge and discharge machine, and 5) two sets of ventilation equipment are started simultaneously;
step 2, discharge test, 1), discharge test for the first time, set up the parameter and discharge every monomer voltage to 1.0V, total voltage is 76V, and discharge time is 4h, when satisfying discharge voltage and reaching 76V or 4h after automatic shutdown, record charge time, 2), close the total idle opening of battery charge and discharge machine, 3), open two charge and discharge machine control switches respectively, 4), set up the discharge parameter: selecting a discharge mode; setting a discharge current 28A and a discharge termination voltage 76V; discharging time is 4.5h, the default discharging capacity is not set and changed, 5) monomer voltage of 3h, 4h and 4.5h is respectively recorded, if part of the batteries in the second discharging time does not reach 4.5h, namely less than 1V, third charging and discharging circulation is needed, if the discharging time of the storage battery still cannot be recovered to reach 4.5h in the third charging and discharging test, replacement is carried out to replace unqualified monomers, and standing is carried out for 12h after the completion;
step 3, charge test, 1), the first charge test, set up parameter every monomer voltage of charging to 1.9V, total voltage 144V, charge time sets up to 7h, when satisfying the charge voltage and reaching 144V or 7h after automatic shutdown, record charge time, 2), closed battery charge and discharge machine always empty and open, 3), open two charge and discharge machine control switches respectively, 4), set up the charging parameter: selecting a charging mode; setting a charging current 28A; the upper limit of the charging voltage is 144V; the charging time is 7h, and the discharging capacity is not set and changed by default; starting a charging program after the parameters are set, stopping the charging program automatically until the charging is finished, 5), recording the charging time after the charging is finished, standing the storage battery pack for 12 hours, and measuring the voltage of the single battery by using a universal meter when the storage battery pack is charged for the second time or the third time, wherein if part of the battery in the second discharging time is less than 4.5 hours, namely the storage battery single battery is less than 1V, the third charging and discharging cycle is required, and if the discharging time of the storage battery which cannot be recovered in the third charging and discharging test is less than 4.5 hours, the unqualified storage battery single battery is replaced.
2. The overhaul vehicle battery charge-discharge test method of claim 1, wherein: the corrugated gasket is a D8 butterfly gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110798924.0A CN113640687A (en) | 2021-07-15 | 2021-07-15 | Charge-discharge test method for storage battery of overhaul vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110798924.0A CN113640687A (en) | 2021-07-15 | 2021-07-15 | Charge-discharge test method for storage battery of overhaul vehicle |
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| CN113640687A true CN113640687A (en) | 2021-11-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029920A (en) * | 2006-09-07 | 2007-09-05 | 长安大学 | System for inspecting operation parameter of central/distributed electric vehicle battery set |
| CN101430368A (en) * | 2008-09-12 | 2009-05-13 | 张天任 | Full-automatic charge-discharge intelligent data acquisition system of accumulator |
| CN201656535U (en) * | 2010-04-09 | 2010-11-24 | 福州福光电子有限公司 | Full on-line accumulator battery charge and discharge test equipment |
| CN105629172A (en) * | 2014-10-27 | 2016-06-01 | 中国移动通信集团甘肃有限公司 | Fault detection method and fault detection device for hybrid battery |
| CN107064804A (en) * | 2016-12-21 | 2017-08-18 | 山东大学 | A kind of BMS data collecting systems for having high low side current detecting concurrently |
| CN206470376U (en) * | 2017-02-10 | 2017-09-05 | 陕西柯蓝电子有限公司 | Batteries charge-discharge test instrument |
-
2021
- 2021-07-15 CN CN202110798924.0A patent/CN113640687A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029920A (en) * | 2006-09-07 | 2007-09-05 | 长安大学 | System for inspecting operation parameter of central/distributed electric vehicle battery set |
| CN101430368A (en) * | 2008-09-12 | 2009-05-13 | 张天任 | Full-automatic charge-discharge intelligent data acquisition system of accumulator |
| CN201656535U (en) * | 2010-04-09 | 2010-11-24 | 福州福光电子有限公司 | Full on-line accumulator battery charge and discharge test equipment |
| CN105629172A (en) * | 2014-10-27 | 2016-06-01 | 中国移动通信集团甘肃有限公司 | Fault detection method and fault detection device for hybrid battery |
| CN107064804A (en) * | 2016-12-21 | 2017-08-18 | 山东大学 | A kind of BMS data collecting systems for having high low side current detecting concurrently |
| CN206470376U (en) * | 2017-02-10 | 2017-09-05 | 陕西柯蓝电子有限公司 | Batteries charge-discharge test instrument |
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