CN103533689B - A kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system - Google Patents
A kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system Download PDFInfo
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- CN103533689B CN103533689B CN201210232806.4A CN201210232806A CN103533689B CN 103533689 B CN103533689 B CN 103533689B CN 201210232806 A CN201210232806 A CN 201210232806A CN 103533689 B CN103533689 B CN 103533689B
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Abstract
The invention belongs to plasma heating field, be specifically related to the titanium pump power-supply system in microwave heating system needed for HIGH-POWERED MICROWAVES vacuum tube.A kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system, be applied in plasma heating system experiment operation, primarily of part compositions such as 220V AC voltage regulator, 5kV step-up transformer, high-voltage rectifying filter, control device, protective device, display unit, current sensing means, fiber-optic signal conversion equipment, remote computer and HIGH-POWERED MICROWAVES vacuum tubes; Titanium pump power acquisition 220V single-phase ac power supply, by 220V AC voltage regulator, delivers to 5kV step-up transformer by alternating voltage, transformer secondary output exports 0 ~ 5kV high direct voltage after the filtering of high-voltage rectifying filter voltage multiplying rectifier; Titanium pump power supply remote monitoring monitoring adopts Fiber isolation technology, is undertaken controlling and monitoring by giving remote computer after Digital and analog two kinds of signal isolation of power supply.
Description
Technical field
The invention belongs to plasma heating field, be specifically related to the titanium pump power-supply system in microwave heating system needed for HIGH-POWERED MICROWAVES vacuum tube.
Background technology
Microwave heating is heater means important in magnetic confinement fusion research.HL-2A device has the system such as Electron Cyclotron Resonance Heating and lower hybrid wave heating, and in such systems, main wave source needs to use long pulse HIGH-POWERED MICROWAVES vacuum tube.
HIGH-POWERED MICROWAVES vacuum tube works in high voltage situation, and tube interior need keep 10
-8the high vacuum of Pa.At vacuum tube under normal and non-normal working situation, because microwave is to the bombardment of the parts such as tube wall or tubular body sparking etc., tube interior will have gas releasing and cause vacuum to degenerate.In order to repair pipe vacuum condition, being provided with titanium getter pump, applying certain voltage by outside to ionic pump in production in HIGH-POWERED MICROWAVES vacuum tube, the work of ionic pump makes the inner high vacuum of vacuum tube be maintained.Microwave system long pulse HIGH-POWERED MICROWAVES used vacuum tube, single tube exports can reach megawatt magnitude, the pulse working time several seconds.In microwave heating system, the quantity of HIGH-POWERED MICROWAVES vacuum tube can reach tens, in work, needs to understand the vacuum of each pipe and the working condition of ionic pump in good time.This just needs to use high target, stable and reliable for performance and have the titanium pump power supply of remote monitoring function.In microwave system, HIGH-POWERED MICROWAVES vacuum tube is for the requirement of titanium pump power supply: conveniently can export 0-5kV adjustable DC high pressure, power supply peak power output 50W.Leakage current is little, measuring range is wide and antijamming capability is strong to require power supply to have.Possess the functions such as stationary singnal output, overcurrent protection, reset and high voltage startup.There is Long-distance Control and real time monitoring function.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high target, stable and reliable for performance and have the titanium pump power supply of remote monitoring function of meeting.
In order to realize this purpose, the technical scheme that the present invention takes is:
A kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system, be applied in plasma heating system experiment operation, primarily of part compositions such as 220V AC voltage regulator, 5kV step-up transformer, high-voltage rectifying filter, control device, protective device, display unit, current sensing means, fiber-optic signal conversion equipment, remote computer and HIGH-POWERED MICROWAVES vacuum tubes;
Titanium pump power acquisition 220V single-phase ac power supply, by 220V AC voltage regulator, delivers to 5kV step-up transformer by alternating voltage, transformer secondary output exports 0 ~ 5kV high direct voltage after the filtering of high-voltage rectifying filter voltage multiplying rectifier; High voltage output port selects coaxial connector, and this high pressure is sent to HIGH-POWERED MICROWAVES vacuum tube through coaxial high pressure cable, for titanium getter pump work in vacuum tube;
Power supply is set to low pressure and high pressure stepped starting, after high voltage startup, provides power work signal, for heating system miscellaneous equipment, does not control after this signal provides by the overcurrent protection of titanium pump power supply; Signal cancellation after powered-down low-voltage control switch;
Titanium pump power supply remote monitoring monitoring adopts Fiber isolation technology, undertaken controlling and monitoring by giving remote computer after Digital and analog two kinds of signal isolation of power supply: the current detecting analog passband signal exported by power detecting control device is crossed voltage-frequency converter and sent into optical fiber, again after the conversion of frequency pressure converter, together with the digital switch signal that power detecting control device exports, be sent to PLC control device and optical transmitter and receiver, by optical transmitter and receiver, all signals are delivered to remote computer, finally by monitoring terminal and monitor terminal, remote monitoring and monitoring are carried out to titanium pump power supply;
Current detecting is stepping display, arranges the current resolution of different shelves between 0 ~ 10mA; The local Display designing of power supply is gauge outfit form, and every grade of overcurrent protection value is corresponding with gauge outfit current values; Remote monitoring terminal is realized by stepping identification signal the monitoring of electric current: for the current resolution of different shelves, and stepping identification signal exports different voltage signals, thus on remote control, corresponding corresponding current resolution.
Further, in a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as above, during plasma heating system experiment runs, for the HIGH-POWERED MICROWAVES vacuum tube in the dissimilar heating system run simultaneously, between the titanium pump power supply and 220V Alternating Current Power Supply of different system, accessing isolation voltage is respectively the isolating transformer of 5000V, and make between power supply and each system mutually isolated, different systems is independently-powered.
Further, in a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as above, titanium pump operating supply voltage is 1kV ~ 4.5kV, and when normally running, operating voltage is between 3kV ~ 3.5kV; Titanium pump power supply high direct voltage exports and is designed to 0 ~ 5kV.
Further, in a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as above, Current Control and display adopt local and remote two kinds of modes.
Further, in a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as above, titanium pump power supply High voltage output port selects insulating material to be the coaxial connector of polytetrafluoroethylene, adopts coaxial high pressure cable to connect power supply and HIGH-POWERED MICROWAVES vacuum tube; The withstand voltage properties of coaxial high pressure cable is direct current 8kV ~ 10kV; The external diameter of coaxial high pressure cable is 7mm, and inner wire is the silver-plated solid copper heart yearn of the diameter 1mm supporting with coaxial connector, as High voltage output; Outer conductor is zinc-plated braiding copper mesh, connects high pressure ground; Intermediate insulating layer adopts silicon rubber, and thickness is 2mm.
Further, in a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as above, current detecting is specifically divided into 50uA, 250uA, 500uA, 5mA, 10mA totally 5 grades, the local Display designing of power supply is gauge outfit form, every grade of overcurrent protection value is corresponding with it, and the corresponding overcurrent protection value of each shelves is 50uA, 250uA, 500uA, 5mA and 10mA; Remote monitoring terminal is realized by stepping identification signal the monitoring of electric current: for each shelves of 50uA, 250uA, 500uA, 5mA, 10mA, stepping identification signal output valve is respectively 2V, 4V, 6V, 8V, 10V, on remote control, the corresponding corresponding current resolution of different gears.
HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system of the present invention, in PLASMA WAVE HEATING system, high vacuum maintenance is carried out to platinotrons such as long pulse high-power klystron, electron cyclotron masers, by its inner vacuum of Real-Time Monitoring, contribute to analyzing vacuum tube working condition, for HIGH-POWERED MICROWAVES vacuum tube selects correct working point to provide reference frame, make heating system work safer, stable.Power supply by the design of the selection of standard output socket and coaxial high pressure cable, by locally to control, remote computer controls the design of two kinds of modes and the utilization of titanium pump source current stepping Display designing and Fiber isolation technology etc., under can being supplied to varying environment, different situation easily, various HIGH-POWERED MICROWAVES vacuum tube uses, in order to maintain and to monitor its inner vacuum.
Accompanying drawing explanation
Fig. 1 is HIGH-POWERED MICROWAVES vacuum tube titanium pump power system structure schematic diagram;
Fig. 2 is that titanium pump power supply stationary singnal and high voltage startup control schematic diagram;
Fig. 3 is titanium pump power supply remote monitoring structural representation;
Fig. 4 is 10kV coaxial high pressure cable construction schematic diagram.
In figure: 1-220V AC voltage regulator; 2-5kV step-up transformer; 3-high-voltage rectifying filter; 4-control device; 5-protective device; 6-display unit; 7-HIGH-POWERED MICROWAVES vacuum tube; 8-current sensing means; 9-fiber-optic signal conversion equipment; 10-remote computer; 11-power detecting control device; 12-analog signal; 13-digital switch signal; 14-voltage-frequency converter; 15-PLC control device; 16-optical fiber; 17-optical transmitter and receiver; 18-is pressure converter frequently; 19-monitoring terminal; 20-monitor terminal; The real core copper cash of 21-; 22-pvc sheath; 23-weaves copper mesh; 24-silicone rubber insulation layer.
Embodiment
Below in conjunction with accompanying drawing, technical solution of the present invention is described in detail.
A kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system, be applied in plasma heating system experiment operation, as shown in Figure 1, primarily of part compositions such as 220V AC voltage regulator 1,5kV step-up transformer 2, high-voltage rectifying filter 3, control device 4, protective device 5, display unit 6, fiber-optic signal conversion equipment 9, current sensing means 8, remote computer 10 and HIGH-POWERED MICROWAVES vacuum tubes 7;
Titanium pump power acquisition 220V single-phase ac power supply, by 220V AC voltage regulator 1, delivers to 5kV step-up transformer 2 by alternating voltage, transformer secondary output exports 0 ~ 5kV high direct voltage after the filtering of high-voltage rectifying filter 3 voltage multiplying rectifier; High voltage output port selects coaxial connector, and this high pressure is sent to HIGH-POWERED MICROWAVES vacuum tube 7 through coaxial high pressure cable, for titanium getter pump work in vacuum tube;
Power supply is set to low pressure and high pressure stepped starting, after high voltage startup, provides power work signal, for heating system miscellaneous equipment, does not control after this signal provides by the overcurrent protection of titanium pump power supply; Signal cancellation after powered-down low-voltage control switch;
Titanium pump power supply remote monitoring monitoring adopts Fiber isolation technology, undertaken controlling and monitoring by giving remote computer 10 after Digital and analog two kinds of signal isolation of power supply: as shown in Figure 3, the current detecting analog signal 12 exported by power detecting control device sends into optical fiber 16 by voltage-frequency converter 14, again after frequency pressure converter 18 is changed, together with the digital switch signal 13 that power detecting control device 11 exports, be sent to PLC control device 15 and optical transmitter and receiver 17, by optical transmitter and receiver 17, all signals are delivered to remote computer 10, finally carry out remote monitoring and monitoring by monitoring terminal 19 and monitor terminal 20 pairs of titanium pump power supplys,
Current detecting is stepping display, arranges the current resolution of different shelves between 0 ~ 10mA; The local Display designing of power supply is gauge outfit form, and every grade of overcurrent protection value is corresponding with gauge outfit current values; Remote monitoring terminal is realized by stepping identification signal the monitoring of electric current: for the current resolution of different shelves, and stepping identification signal exports different voltage signals, thus on remote control, corresponding corresponding current resolution.
Further, a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as above, during plasma heating system experiment runs, for the HIGH-POWERED MICROWAVES vacuum tube in the dissimilar heating system run simultaneously, between the titanium pump power supply and 220V Alternating Current Power Supply of different system, accessing isolation voltage is respectively the isolating transformer of 5000V, and make between power supply and each system mutually isolated, different systems is independently-powered.Titanium pump operating supply voltage is 1kV ~ 4.5kV, and when normally running, operating voltage is between 3kV ~ 3.5kV; Titanium pump power supply high direct voltage exports and is designed to 0 ~ 5kV.Current Control and display adopt local and remote two kinds of modes.As shown in Figure 4, titanium pump power supply High voltage output port selects insulating material to be the coaxial connector of polytetrafluoroethylene, adopts coaxial high pressure cable to connect power supply and HIGH-POWERED MICROWAVES vacuum tube 7; The withstand voltage properties of coaxial high pressure cable is direct current 8kV ~ 10kV; The external diameter of coaxial high pressure cable is 7mm, and inner wire is the silver-plated solid copper heart yearn of the diameter 1mm supporting with coaxial connector, as High voltage output; Outer conductor is zinc-plated braiding copper mesh, connects high pressure ground; Intermediate insulating layer adopts silicon rubber, and thickness is 2mm.Current detecting is specifically divided into 50uA, 250uA, 500uA, 5mA, 10mA totally 5 grades, and the local Display designing of power supply is gauge outfit form, and every grade of overcurrent protection value is corresponding with it, and the corresponding overcurrent protection value of each shelves is 50uA, 250uA, 500uA, 5mA and 10mA; Remote monitoring terminal is realized by stepping identification signal the monitoring of electric current: for each shelves of 50uA, 250uA, 500uA, 5mA, 10mA, stepping identification signal output valve is respectively 2V, 4V, 6V, 8V, 10V, on remote control, the corresponding corresponding current resolution of different gears.
Fig. 2 is that titanium pump power supply stationary singnal and high voltage startup control schematic diagram.When K1 closes, after 220V voltage adds, J3 adhesive simultaneously.Now, high voltage startup K switch 2 is pressed, J0, J1 adhesive, and high tension loop out1 and stationary singnal out0 has output; When after power supply overcurrent protection, J3 disconnects and causes J1 to disconnect, and high tension loop does not export, but J still adhesive, stationary singnal out0 still has output, and the auxiliary equipment (as filament supply) now connecting out0 can work on; Like this, both avoid the impact to microwave tube filament, in turn save the time (heavily rise filament and need more than 20 minutes time) heavily rising filament supply.After the overcurrent protection of titanium pump power supply, according to remote computer terminal monitoring, remote reset and startup can be carried out immediately, to recover and to keep the inside high vacuum of microwave tube.
During HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system Long-distance Control, when in PLASMA WAVE HEATING system, each microwave tube runs titanium pump electric current observation interface figure in every bar curve represent the titanium pump source current trend of corresponding microwave tube.When discharging at every turn, its titanium pump electric current of the microwave tube of operation there will be a pulse, according to the known size of current of peak value, thus judgement and microwave tube inner vacuum situation, indirectly judge the working condition of microwave tube.The remote control of each microwave tube titanium pump power supply in system, can observe the working condition of each titanium pump power supply; Once there be titanium pump power protection, interface will provide alarm, now, can not continue electric discharge, only have after clicking titanium pump power reset, start button, could continue electric discharge.
Claims (6)
1. a HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system, be applied in plasma heating system experiment operation, it is characterized in that: form primarily of 220V AC voltage regulator (1), 5kV step-up transformer (2), high-voltage rectifying filter (3), control device (4), protective device (5), display unit (6), fiber-optic signal conversion equipment (9), current sensing means (8), remote computer (10) and HIGH-POWERED MICROWAVES vacuum tube (7);
Titanium pump power acquisition 220V single-phase ac power supply, by 220V AC voltage regulator (1), alternating voltage is delivered to 5kV step-up transformer (2), transformer secondary output exports 0 ~ 5kV high direct voltage after high-voltage rectifying filter (3) voltage multiplying rectifier filtering; High voltage output port selects coaxial connector, and this high pressure is sent to HIGH-POWERED MICROWAVES vacuum tube (7) through coaxial high pressure cable, for titanium getter pump work in vacuum tube;
Power supply is set to low pressure and high pressure stepped starting, after high voltage startup, provides power work signal, for heating system miscellaneous equipment, does not control after this signal provides by the overcurrent protection of titanium pump power supply; Signal cancellation after powered-down low-voltage control switch;
Titanium pump power supply remote monitoring monitoring adopts Fiber isolation technology, undertaken controlling and monitoring by giving remote computer (10) after Digital and analog two kinds of signal isolation of power supply: the current detecting analog signal (12) exported by power detecting control device sends into optical fiber (16) by voltage-frequency converter (14), again after frequency pressure converter (18) conversion, together with the digital switch signal (13) that power detecting control device (11) exports, be sent to PLC control device (15) and optical transmitter and receiver (17), by optical transmitter and receiver (17), all signals are delivered to remote computer (10), finally by monitoring terminal (19) and monitor terminal (20), remote monitoring and monitoring are carried out to titanium pump power supply,
Current detecting is stepping display, arranges the current resolution of different shelves between 0 ~ 10mA; The local Display designing of power supply is gauge outfit form, and every grade of overcurrent protection value is corresponding with gauge outfit current values; Remote monitoring terminal is realized by stepping identification signal the monitoring of electric current: for the current resolution of different shelves, and stepping identification signal exports different voltage signals, thus on remote control, corresponding corresponding current resolution.
2. a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as claimed in claim 1, it is characterized in that: during plasma heating system experiment runs, for the HIGH-POWERED MICROWAVES vacuum tube in the dissimilar heating system run simultaneously, between the titanium pump power supply and 220V Alternating Current Power Supply of different system, accessing isolation voltage is respectively the isolating transformer of 5000V, make between power supply and each system mutually isolated, different systems is independently-powered.
3. a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as claimed in claim 1, it is characterized in that: titanium pump operating supply voltage is 1kV ~ 4.5kV, when normally running, operating voltage is between 3kV ~ 3.5kV; Titanium pump power supply high direct voltage exports and is designed to 0 ~ 5kV.
4. a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as claimed in claim 1, is characterized in that: Current Control and display adopt local and remote two kinds of modes.
5. a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as claimed in claim 1, it is characterized in that: titanium pump power supply High voltage output port selects insulating material to be the coaxial connector of polytetrafluoroethylene, adopt coaxial high pressure cable to connect power supply and HIGH-POWERED MICROWAVES vacuum tube (7); The withstand voltage properties of coaxial high pressure cable is direct current 8kV ~ 10kV; The external diameter of coaxial high pressure cable is 7mm, and inner wire is the silver-plated solid copper heart yearn of the diameter 1mm supporting with coaxial connector, as High voltage output; Outer conductor is zinc-plated braiding copper mesh, connects high pressure ground; Intermediate insulating layer adopts silicon rubber, and thickness is 2mm.
6. a kind of HIGH-POWERED MICROWAVES vacuum tube titanium pump power-supply system as claimed in claim 1, it is characterized in that: current detecting is specifically divided into 50uA, 250uA, 500uA, 5mA, 10mA totally 5 grades, the local Display designing of power supply is gauge outfit form, every grade of overcurrent protection value is corresponding with it, and the corresponding overcurrent protection value of each shelves is 50uA, 250uA, 500uA, 5mA and 10mA; Remote monitoring terminal is realized by stepping identification signal the monitoring of electric current: for each shelves of 50uA, 250uA, 500uA, 5mA, 10mA, stepping identification signal output valve is respectively 2V, 4V, 6V, 8V, 10V, on remote control, the corresponding corresponding current resolution of different gears.
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| CN109460002B (en) * | 2018-09-27 | 2020-09-04 | 电子科技大学 | High-efficiency control protection system and method in high-power millimeter wave test process |
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| CN101442874A (en) * | 2007-11-23 | 2009-05-27 | 核工业西南物理研究院 | Main high-voltage power supply for high-power turnabout tube cathode |
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| US7569800B2 (en) * | 2004-11-15 | 2009-08-04 | Yonglai Tian | Method and apparatus for rapid thermal processing and bonding of materials using RF and microwaves |
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| CN101442874A (en) * | 2007-11-23 | 2009-05-27 | 核工业西南物理研究院 | Main high-voltage power supply for high-power turnabout tube cathode |
| CN101453824A (en) * | 2007-11-30 | 2009-06-10 | 核工业西南物理研究院 | Anode high voltage power for electronic cyclotron |
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