Railway network phase separating section characteristic-based self-starting power supply method for train pressure swing adsorption (PSA) oxygen preparation system
A technology of oxygen production system and phase separation, which is applied to electrical components, circuit devices, emergency power supply arrangements, etc., can solve the problems of inability to complete self-start, oxygen production system shutdown, etc., to increase automatic control functions and overcome complete shutdown. , the effect of large-scale promotion of application prospects
Inactive Publication Date: 2015-04-22
THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
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Problems solved by technology
[0006] The present invention aims at the defect that the oxygen production system shuts down and cannot complete self-starting in the state of no power supply in the phase-separation area of the railway network existing in the above-mentioned prior art, and proposes a train PSA oxygen production system based on the characteristics of the phase-separation area of the railway network. System self-starting power supply method
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[0017] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:
[0018] Such as figure 1 Shown is the main control circuit of the existing train PSA oxygen generation system. The AC380V power supply is sent to the pins 16, 18 and 20 of the microcontroller 15 of the air compressor through the switch 1, and at the same time sent to the relay contact terminal 5 of the air compressor motor 2, the relay contact terminal 7 of the fan motor 3 and the cooling On the relay contact terminal 8 of the dryer. AC220V power is obtained from the V line of the three-phase power line, after the JT switch and FU1 are insured, it is sent to the pin 29 of the microcontroller 15, and supplied to the water inlet and outlet solenoid valves 16 and 17 to work; at the same time, the AC220V power is sent to the power adapter Terminal 18 converts AC220V into the working power required by the PLC logic controller 19 and provides th...
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The invention belongs to the technical field of onboard oxygen preparation systems, and particularly relates to a railway network phase separating section characteristic-based self-starting power supply method for a train pressure swing adsorption (PSA) oxygen preparation system. An uninterruptible power supply (UPS) is connected to a connecting line of a power adapter of an oxygen preparation host control circuit module of the oxygen preparation system, a main power switch and a refrigeration dryer. A railway network phase separating section detection time relay is added to a connecting line of a microcontroller of a control circuit module of an air compressor and the main power switch, and a contact of the detection time relay is connected between a fuse of the refrigeration dryer and a power switch of the oxygen preparation host control circuit module, and a control program of a master control circuit is modified, so that the UPS supplies power to an oxygen preparation host of the train PSA oxygen preparation system after a train enters a phase separating section, and the whole oxygen preparation system is self-started after the train leaves from the phase separating section. The problem of temporal uncertainty of manual secondary starting is solved, and the full-flow work of oxygen preparation during the running of the train can be finished.
Description
technical field [0001] The invention belongs to the field of vehicle-mounted oxygen production systems, and in particular relates to a self-starting power supply method for a train PSA oxygen production system based on the characteristics of phase separation zones of a railway road network. Background technique [0002] At present, my country's electrified road network adopts a three-phase phase-splitting and segmented power supply mode for electric locomotives, and a power-off phase-splitting area of about 30m is set every 20km to 30km. This kind of power outage occurs every 15 minutes or so. This kind of power outage in the phase-splitting area of the road network seriously affects the normal use of the on-board oxygen generation system. [0003] The existing oxygen generation system usually adopts PSA oxygen generation technology and PLC control technology. The oxygen generation system is composed of air compressor, air storage tank, filter, oxygen generator, booster p...
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IPC IPC(8): H02J9/04
Inventor 陈渝孙汉军向逾石梅生王济虎
Owner THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV