CN111347143A - High-power super battery energy storage and power supply flash welding machine - Google Patents
High-power super battery energy storage and power supply flash welding machine Download PDFInfo
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- CN111347143A CN111347143A CN202010264207.5A CN202010264207A CN111347143A CN 111347143 A CN111347143 A CN 111347143A CN 202010264207 A CN202010264207 A CN 202010264207A CN 111347143 A CN111347143 A CN 111347143A
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- energy storage
- battery
- welding machine
- power supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/241—Electric supplies
- B23K11/243—Multiple welding installations fed by one source
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/04—Flash butt welding
- B23K11/046—Apparatus therefor
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A high-power super battery energy storage and power supply flash welding machine comprises a battery energy storage and power supply system (1) and a flash welding machine set (2), wherein an energy storage battery pack (11), a confluence cabinet (12), an energy storage converter (13) and an isolation transformer (14) are arranged in the battery energy storage and power supply system (1); a movable alternating current welding machine (22), a movable direct current welding machine (23) and a welding machine auxiliary equipment load (21) are arranged in the flash welding unit (2). This kind of flash welding machine system assembles with the container form, can fix on rail vehicle, and convenient transportation adopts super energy storage battery power supply in the job site, has eliminated dense smoke, noise and the harmful gas pollution that configuration diesel generating set's traditional flash welding machine during operation brought completely, and green has improved the construction environment, is favorable to the rail welding construction in subway, tunnel extremely.
Description
Technical Field
The invention belongs to the technical field of railway operation, and particularly relates to a high-power super-battery energy-storage power supply flash welding machine.
Background
The flash welder for steel rail is based on the principle that the heat generated by passing current through resistor is used to weld welded parts and then upset-forged to reach the purpose of welding. The general mobile rail flash welding machine can be divided into two types according to the types of power supplies, wherein one type is an alternating current power supply, and the other type is a direct current power supply. At present, the mobile steel rail flash welding machine generally adopts an alternating current power supply and uses a diesel generating set to generate electricity.
The steel rail flash welding machine is special high-power welding equipment and has the characteristics of low energy consumption, high welding efficiency, good welding quality and the like. The power supply of the steel rail flash welding machine directly influences the welding quality and the production efficiency, and the welding machine power supply can stably and reliably output required electric energy under the conditions of severe power factor change and large harmonic wave because the steel rail flash welding needs severe changes of low voltage, heavy current and heavy load during welding so as to meet the technological requirements of steel rail flash welding. The representative models of the current domestic and foreign welder research institutions comprise Holland company K355; k900 from Paton Welding Instituted; YHG-1200TH, UN200 type, etc. of iron institute group Co; the machine type is generally used for field mobile flash welding.
At present, the existing mobile AC steel rail flash welding machines at home and abroad adopt a three-phase diesel generator set to supply power, and a main circuit generally adopts three phases or two phases as a single power supply to supply power to the main circuit of the AC flash welding machine. Resulting in an imbalance of the three-phase load on the low-voltage side. In the preflash and upset forging stages, the diesel generator set is in the short-time overload working condition, the power supply transition process directly influences the flash welding stability and the upset forging speed, and further influences the joint quality, because the diesel engine is overloaded for a short time, the cylinder body, the piston ring and the crankshaft are excessively worn, the gap of the cylinder body is increased, the compression ratio is reduced, fuel oil is insufficiently combusted, and the diesel engine has many problems of black smoke emission, noise increase, service life shortening, carbon monoxide and other toxic gas emission increase and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-power super-battery energy storage and power supply flash welding machine, which comprises a battery energy storage and power supply system and a flash welding unit, wherein an energy storage battery pack, a confluence cabinet, an energy storage converter and an isolation transformer are arranged in the battery energy storage and power supply system; the flash welding machine set is provided with a movable alternating current welding machine, a movable direct current welding machine and a welding machine auxiliary equipment load.
The battery pack is communicated with the energy storage converter through the confluence cabinet, and the energy storage converter is respectively communicated with the movable alternating current welding machine, the movable direct current welding machine and the welding machine auxiliary equipment load through the isolation transformer.
The battery energy storage and power supply system is arranged in the first container; the flash welding unit is arranged in the second container.
In the battery pack, battery monomers are connected in series to form a battery pack, the battery pack is further connected in series to form a battery cluster, direct current is converged in a convergence cabinet after the battery clusters are connected in parallel, a high-voltage box is configured in the convergence cabinet, and the high-voltage box is a battery cluster high-voltage control unit;
a main positive relay and a main negative relay of the cost cluster are integrated in the high-voltage box, wherein a pre-charging loop is a control unit for grid connection and disconnection of the cluster battery pack;
the high-voltage box is integrated with a secondary main control unit of the battery management system, monitors the real-time state of the battery cluster, displays battery information on a display screen and welding machine upper computer software, and performs information interaction with the energy storage converter.
The battery unit of the battery pack adopts a lithium battery, a ternary battery, a lead-acid battery and a lithium-sulfur chemical energy storage battery.
The battery energy storage and power supply system further comprises a battery cabinet, a battery management system, an air conditioning system and a fire fighting system.
Wherein, a hydraulic station, a water cooler, an autotransformer and an electric control cabinet are arranged in the welding machine auxiliary equipment load.
The technical scheme provided by the invention mainly depends on the super battery pack for discharging, so that compared with the whole welding construction process of the traditional diesel generator set, the invention has the advantages of zero tail gas emission, no noise pollution, environmental protection, good effect on energy conservation and emission reduction and contribution to protecting the health of constructors;
the super battery has very strong instant discharge capacity, and can instantly emit thousands of amperes of current according to the current demand of the welded rail at the instant of welding the rail, thereby greatly improving the efficiency and quality of welding the rail;
the welding machine is directly powered by the super energy storage battery pack after confluence and voltage regulation, and different power output controls can be performed on the output power according to different steel rails, so that the adaptability of the flash welding machine is improved.
Drawings
FIG. 1 is a schematic diagram of a high power super battery energy storage powered flash welder.
FIG. 2 is an electrical schematic diagram of a flash welder based on super battery energy storage and used as a main discharge device.
Detailed Description
The invention provides a high-power super battery energy storage power supply flash welding machine which is described in detail below with reference to the accompanying drawings and specific embodiments.
The high-power super battery energy storage power supply flash welding machine comprises a battery energy storage power supply system 1 and a flash welding unit 2, wherein an energy storage battery pack 11, a confluence cabinet 12, an energy storage converter 13 and an isolation transformer 14 are arranged in the battery energy storage power supply system 1; the flash welding unit 2 is provided with a movable alternating current welding machine 22, a movable direct current welding machine 23 and a welding machine auxiliary equipment load 21. The energy storage converter 13 is capable of outputting a constant voltage and frequency.
The battery pack 11 is communicated with an energy storage converter 13 through a bus cabinet 12, and the energy storage converter 13 is respectively communicated with a movable alternating current welding machine 22, a movable direct current welding machine 23 and a welding machine auxiliary equipment load 21 through an isolation transformer 14. The battery pack 11 inputs direct current into the energy storage converter 13 through the bus cabinet 12, the energy storage converter 13 converts the direct current into alternating current with certain frequency and voltage, and the energy storage converter 3 supplies the alternating current to auxiliary equipment of the welding machine and the welding machine through the isolation transformer 14.
The battery energy storage power supply system 1 is arranged in the first container; the flash welding unit 2 is arranged in the second container. When welding operation is carried out, the battery energy storage power supply system supplies power to the welding machine and auxiliary equipment of the welding machine through cables, and the battery energy storage system supplies power to the welding machine after a welding program is started.
In the battery pack 11, battery monomers are connected in series to form a battery pack, the battery pack is further connected in series to form a battery cluster, direct current is converged in a convergence cabinet 12 after the battery clusters are connected in parallel, a high-voltage box 121 is configured in the convergence cabinet 12, and the high-voltage box is a battery cluster high-voltage control unit;
a main positive relay and a main negative relay 122 of the battery pack are integrated in the high-voltage box 121, wherein a pre-charging loop is a control unit for grid connection and disconnection of the battery pack;
the high-voltage box 121 integrates a secondary main control unit of the battery management system 123, monitors the real-time state of the battery cluster, displays battery information on a display screen 124 and welding machine upper computer software, and performs information interaction with the energy storage converter 13.
When the battery pack is charged, three-phase alternating current is input into the energy storage converter 13 through the isolation transformer 14 by the grid power or the small generator, the three-phase alternating current is converted into direct current by the energy storage converter 3, the battery pack 11 is charged through the confluence cabinet 12, and after the battery pack 11 is fully charged, the battery management system gives a prompt to cut off a charging power supply, so that the charging process of the battery pack is finished.
The battery unit of the battery pack 11 is a lithium battery, a ternary battery, a lead-acid battery or a lithium-sulfur chemical energy storage battery.
The battery energy storage and power supply system 1 further comprises a battery cabinet 15, a battery management system 123, an air conditioning system and a fire fighting system. The charging mode of the battery energy storage system can adopt three-phase network power or a low-power diesel generator for charging.
A hydraulic station, a water cooler, an autotransformer and an electric control cabinet are arranged in the welding machine auxiliary equipment load 21.
The specific working mode of the alternating-current flash welding machine is as follows: in a battery pack discharging mode, the battery pack converges direct current through the converging cabinet and transmits the converged direct current to the energy storage converter, the energy storage converter converts the direct current into three-phase alternating current, and the three-phase alternating current is supplied to loads of an alternating current mobile flash welding machine and auxiliary equipment of the welding machine through an isolation transformer, wherein the loads comprise a water cooler and a hydraulic station motor. And in the power supply process, the energy storage converter controls the output voltage to be stabilized between 350 and 480V in real time. In the battery pack charging mode, three-phase alternating current enters an energy storage converter through an isolation transformer by using a three-phase grid power or a small generator, the energy storage converter converts the alternating current into direct current, and the direct current charges the battery pack through a confluence cabinet.
The specific working mode of the direct current flash welding machine is as follows: in a battery pack discharging mode, the battery pack converges direct current through the converging cabinet and transmits the converged direct current to the energy storage converter, and the energy storage converter supplies the direct current to the direct current mobile flash welding machine and auxiliary equipment loads of the welding machine through the isolation transformer, wherein the auxiliary equipment loads comprise a water cooling machine and a hydraulic station motor. And in the power supply process, the energy storage converter controls the output voltage to be stabilized between 350 and 480V in real time. In the battery pack charging mode, three-phase alternating current enters an energy storage converter through an isolation transformer by using a three-phase grid power or a small generator, the energy storage converter converts the alternating current into direct current, and the direct current charges the battery pack through a confluence cabinet.
In one embodiment, a lithium iron phosphate battery pack is used to power the mobile ac flash welder.
The power supply system mainly comprises an energy storage battery pack, a battery management system, an energy storage converter, a transformer, an air conditioning system, a fire fighting system, a battery cabinet and a confluence cabinet. The battery pack is composed of 2.8-6.2V lithium iron phosphate batteries of single batteries, a battery pack is formed by connecting the batteries in parallel and then connecting the batteries in series, the battery pack is connected in series to form a cluster, and the system is 2-8 clusters. Capacity of each battery pack: 3-12 KWH; battery capacity: 50-200 KWH; system capacity: 200 to 1000 KWH. The battery cluster converges direct current to the confluence cabinet through a cable, the confluence cabinet converges the direct current and inputs the direct current into the energy storage converter, the energy storage converter inverts the direct current into alternating current to be output to the transformer, and the transformer supplies power to the flash welding machine through the master control switch 16. The power supply system equipment is fixed by adopting a ground foot and is in an upper-inlet and upper-outlet mode. The mobile flash welding machine adopts an alternating current welding machine.
In another embodiment, the mobile direct current flash welding machine is powered by a lithium iron phosphate battery pack.
The power supply system mainly comprises an energy storage battery pack, a battery management system, a transformer, an air conditioning system, a fire fighting system, a battery cabinet, a confluence cabinet and the like. The battery pack is composed of 2.8-6.2V lithium iron phosphate batteries of single batteries, a battery pack is formed by connecting the batteries in parallel and then connecting the batteries in series, the battery pack is connected in series to form a cluster, and the system is 2-8 clusters. Capacity of each battery pack: 3-12 KWH; battery capacity: 50-200 KWH; system capacity: 200 to 1000 KWH. The battery cluster converges the direct current to the confluence cabinet through a cable, the confluence cabinet converges the direct current and outputs the direct current to the transformer, and the transformer supplies power to the flash welding machine through the master control switch 16. The system equipment is fixed by adopting a ground foot fixing mode and an upper inlet and upper outlet mode. The mobile flash welding machine adopts a direct current welding machine.
Compared with the welding curve of the traditional diesel generator set flash welding machine based on the welding curve of the actual welding joint of the flash welding machine which stores energy by the super battery and serves as main discharging equipment, the voltage and the current of the flash welding machine storing energy by the super battery are more stable, the current and the voltage have important influence on the quality of the welding joint of the steel rail for the flash welding process, a power supply system of the flash welding machine storing energy by the super battery can provide more stable voltage and current, and the welding process is more stable and the quality of the welding joint is better.
Finally, it should be noted that the above examples are only intended to describe the technical solutions of the present invention and not to limit the technical methods, the present invention can be extended in application to other modifications, variations, applications and embodiments, and therefore all such modifications, variations, applications, embodiments are considered to be within the spirit and teaching scope of the present invention.
Claims (9)
1. A high-power super battery energy storage and power supply flash welding machine is characterized by comprising a battery energy storage and power supply system (1) and a flash welding machine set (2), wherein an energy storage battery pack (11), a confluence cabinet (12), an energy storage converter (13) and an isolation transformer (14) are arranged in the battery energy storage and power supply system (1); a movable alternating current welding machine (22), a movable direct current welding machine (23) and a welding machine auxiliary equipment load (21) are arranged in the flash welding unit (2).
2. A high power super battery energy storage powered flash welder according to claim 1 characterized in that said battery pack (11) is connected to the energy storage converter (13) through the combiner box (12), and the energy storage converter (13) is connected to the mobile AC welder (22), the mobile DC welder (23) and the welder auxiliary equipment load (21) through the isolation transformer (14).
3. The high-power super battery energy-storage power supply flash welding machine according to claim 1, characterized in that in the battery pack (11), the battery cells are connected in series to form a battery pack, the battery pack is further connected in series to form a battery cluster, the battery cluster is connected in parallel to converge direct current into a confluence cabinet (12), a high-voltage box (121) is configured in the confluence cabinet (12), and the high-voltage box is a battery cluster high-voltage control unit;
a main positive relay and a main negative relay (122) of the battery cluster are integrated in the high-voltage box (121), wherein a pre-charging loop is a control unit for the battery pack of the cluster and is off-grid;
the high-voltage box (121) is integrated with a secondary main control unit of the battery management system (123), monitors the real-time state of the battery cluster, displays battery information on a display screen (124) and welding machine upper computer software, and performs information interaction with the energy storage converter (13).
4. A high power super battery energy storage powered flash welder according to claim 1 characterized in that said battery energy storage power supply system (1) is placed in a first container; the flash welding unit (2) is arranged in the second container.
5. A high-power super-battery energy-storage power supply flash welding machine according to claim 1, characterized in that the battery unit of the battery pack (11) adopts lithium batteries, ternary batteries, lead-acid batteries and lithium-sulfur chemical energy storage batteries.
6. A high power super battery energy storage powered flash welder according to claim 1 characterized in that said battery energy storage power supply system (1) further comprises a battery cabinet (15), an air conditioning system and a fire fighting system.
7. A high power super battery energy storage powered flash welder according to claim 1 characterized in that said welder auxiliary equipment load (21) is provided with hydraulic station, water cooler, autotransformer and electric control cabinet.
8. A high power super battery energy storage powered flash welder according to claim 1 characterized in that said energy storage converter (13) comprises a dc filter (131), a converter unit (133) and a dc filter (132).
9. The working method of the high-power super battery energy storage power supply flash welding machine according to the claim 1 or 3,
the software of the upper computer of the welding machine transmits the instruction to a secondary main control unit of the battery management system;
the secondary main control unit transmits instructions to the battery cluster and the energy storage converter, the main positive relay is closed, and the battery cluster is in an off-grid state;
high-voltage direct current output by the high-voltage box enters the energy storage converter through the direct current switch, the direct current is inverted into sine wave voltage through the direct current filter and the three-phase half-bridge converter of the converter unit, the three-phase sine wave voltage supplies power to the welding machine and the auxiliary load through the isolation transformer, and the welding machine is started to perform welding operation;
after welding is finished, the upper computer software of the welding machine transmits a charging instruction to a secondary main control unit of the battery management system, a pre-charging loop relay is closed, and the battery cluster is in a grid-connected state;
the three-phase alternating current is rectified by the power grid through the energy storage inverter conversion unit, filtered by the direct current filter and then enters the pre-charging loop, and then the battery pack is charged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010264207.5A CN111347143A (en) | 2020-04-07 | 2020-04-07 | High-power super battery energy storage and power supply flash welding machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010264207.5A CN111347143A (en) | 2020-04-07 | 2020-04-07 | High-power super battery energy storage and power supply flash welding machine |
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| CN111347143A true CN111347143A (en) | 2020-06-30 |
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| CN202010264207.5A Pending CN111347143A (en) | 2020-04-07 | 2020-04-07 | High-power super battery energy storage and power supply flash welding machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872567A (en) * | 2020-12-18 | 2021-06-01 | 中车永济电机有限公司 | Hybrid power supply device of mobile flash rail welding machine |
| CN113162203A (en) * | 2021-03-19 | 2021-07-23 | 常州市瑞泰工程机械有限公司 | Power supply method for rail flash welding |
| CN117013394A (en) * | 2023-07-04 | 2023-11-07 | 南通国轩新能源科技有限公司 | Comprehensive control cabinet for energy storage electrical system |
-
2020
- 2020-04-07 CN CN202010264207.5A patent/CN111347143A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872567A (en) * | 2020-12-18 | 2021-06-01 | 中车永济电机有限公司 | Hybrid power supply device of mobile flash rail welding machine |
| CN113162203A (en) * | 2021-03-19 | 2021-07-23 | 常州市瑞泰工程机械有限公司 | Power supply method for rail flash welding |
| CN113162203B (en) * | 2021-03-19 | 2023-12-01 | 常州中车瑞泰装备科技有限公司 | Power supply method for track flash welding |
| CN117013394A (en) * | 2023-07-04 | 2023-11-07 | 南通国轩新能源科技有限公司 | Comprehensive control cabinet for energy storage electrical system |
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