CN201262622Y - Mobile high-frequency X ray fault detector - Google Patents
Mobile high-frequency X ray fault detector Download PDFInfo
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- CN201262622Y CN201262622Y CNU2008202180070U CN200820218007U CN201262622Y CN 201262622 Y CN201262622 Y CN 201262622Y CN U2008202180070 U CNU2008202180070 U CN U2008202180070U CN 200820218007 U CN200820218007 U CN 200820218007U CN 201262622 Y CN201262622 Y CN 201262622Y
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Abstract
A mobile high-frequency X-ray detecting machine consists of a drive (1), a high-voltage generator (2), a controller (3), an X-ray tube (4) and a cooler (6). The utility model adopts power electronics technology, combines digital-analog hybrid control technology, and uses high-power electronic devices for carrying out a plurality of times of transformation on a power-frequency power supply so as to eventually obtain DC high-voltage electricity with very high accuracy and stability. The mobile high-frequency X-ray detecting machine has the advantages of high stability, strong penetration capability and high system resolving power. The high-voltage multiplying rectifier uses a ladder-shaped dumbbell structure and is a modular design, thus leading the installation and maintenance to be convenient. The whole high-voltage generator has the advantages of compact structure, small volume, light weight and high reliability.
Description
Technical field
The utility model relates to a kind of non-destructive detecting device, relates to a kind of x-ray flaw detector specifically.
Background technology
The power frequency mobile X-ray detection apparatus is the x-ray flaw detector that generally uses at home at present.Its high-pressure section adopts oil-insulation, and output power is big, is furnished with forced cooling device, can continuous working, thereby be of wide application.But because high pressure generator adopts Industrial Frequency Transformer, mechanical pressure regulator is adopted in control, so control accuracy is low, the high pressure ripple is big, and the ray penetration power of generation is poor, and degree of stability is low, can not satisfy growing commercial production needs.
Summary of the invention
Defective according to existing x-ray flaw detector exists the utility model proposes a kind of degree of stability height, and penetration capacity is strong, the x-ray flaw detector that systemic resolution is high.
Finishing the concrete technical measures that the foregoing invention purpose taked is: a kind of portable high frequency x-ray flaw detector, comprise driver, high pressure generator, X-ray tube and refrigeratory, and it is characterized in that:
Portable high frequency x-ray flaw detector is made up of controller, driver, high pressure generator, X-ray tube and refrigeratory, driver places the high pressure generator top, driver is made up of pipe pressure-controlled circuit and pipe flow control circuit, the pipe pressure-controlled circuit of driver connects the high pressure generator input circuit, pipe flow control circuit output in the driver connects the filament isolating transformer in the high pressure generator, the output circuit of high pressure generator connects X-ray tube, and the single-chip microcomputer in the controller connects pipe pressure-controlled circuit and the pipe flow control circuit in the driver; Controller cooling control signal connects the controller on the refrigeratory, and the refrigeratory cooling water pipe connects the X-ray tube cooling device.
High pressure produces and filament drive is to be finished by actuator tube pressure-controlled circuit and pipe flow control circuit:
The high pressure producing method: the AC220V AC power connects rectifier bridge (FB1), driving circuit is pressed in the rectification bridge output end adapting pipe, pipe presses driving circuit to connect step-up transformer (T1) elementary of high pressure generator, the many voltage doubling rectifing circuits of secondary connection of step-up transformer (T1), many voltage doubling rectifing circuits connect X-ray tube, controller output end connects the kV control PWM of driver, and high pressure kV feedback connects kV control PWM, and driving circuit is pressed in kV control PWM adapting pipe.
Filament drive mode: rectification bridge output end adapting pipe stream driving circuit, it is elementary that pipe stream driving circuit output terminal connects filament transformer (T2), the secondary connection X-ray tube of filament transformer filament, controller output end connects the mA control PWM of driver, high pressure mA feedback connects mA control PWM, mA control PWM adapting pipe stream driving circuit.
Controller is made up of power supply and single-chip microcomputer, the circuit connecting relation of controller is: the power supply input connects the pin 9 of 8051 chips, chip U1 pin 39 connects the pin 1 of integrated package 74LS14, the pin 2 of 74LS14 connects through 1 pin that resistance R 3 is connected to optocoupler TLP521, chip pin 21 connects the pin 3 of integrated package 74LS14, the pin 4 of 74LS14 is the given pin of kV of driver through the pin 3.TLP521 pin 11 that resistance R 4 is connected to optocoupler TLP521, TLP521 pin 9 is the given pin of mA of driver, TLP521 pin 6 is a refrigeratory signal pin, and the pin 8 of TLP521 connects 8051 chip pin 27.
The beneficial effects of the utility model: the utility model adopts Power Electronic Technique, and mixes control technology in conjunction with digital-to-analogue, utilizes high-power electronic device that power frequency supply is carried out repeatedly conversion and finally obtains precision and all very high dc high-voltage of degree of stability.Portable high frequency x-ray flaw detector has the degree of stability height, and penetration capacity is strong, the advantage that systemic resolution is high.The high pressure voltage multiplying rectifier adopts scalariform dumbbell structure, and for modular design, makes convenient for installation and maintenance.Whole high pressure generator compact conformation, volume is little, and is in light weight, the reliability height.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model
Fig. 2 is circuit theory diagrams of the present utility model
Fig. 3 is a pipe current control schematic diagram
Fig. 4 is a pipe pressure-controlled schematic diagram
Fig. 5 is controller control principle figure
1 driver, 2 high pressure generators, 3 controllers, 4 X-ray tubes, 5 high-tension cables, 6 refrigeratorys among the figure
Embodiment
Be described with reference to the accompanying drawings structure of the present utility model and principle of work.
The circuit that driver 1, high pressure generator 2, X-ray tube 4, controller are 3 connects the circuit component that is adopted:
Electric capacity all adopts Korea S three and HE series electric capacity.
C1?3300UF/450V，C2，C3?3300UF/400V，C4?10UF/450V，C5?470UF/450VC6?100nF/2000V，C7，C8?220UF/450V，C9?0.1UF/630V。
Q1, Q2, Q3, Q4, Q5, D1, D2 all adopt German IXYS company power device.
Q1, Q2, Q3, Q4, Q5 600V35A IGBT, model IXDH35N60B.
D1 800V 23A rectifier bridge, model VBO36-08NO8.
D2 600V 17A fast recovery diode, model DSS17-06CR.
D3 IN4007 commutation diode.
Elementary 34 circles of T1, the step-up transformer of the inferior utmost point 6800 circles.
Elementary 120 circles of T2, the step-down transformer of the inferior utmost point 6 circles.
The L1 frequency inductance, inductance value 5mH, winding 200 circles.
The L2 high-frequency inductor, inductance value 4mH, winding 150 circles.
Many voltage doubling rectifing circuits are made up of the high-voltage diode of 20kV50mA and the high-voltage capacitance of 40kV20000pF.
R1, R2, accurate high-tension resistive, resistance 300M.R3, R4 are 1K precision metallic film resistances.
Single-chip microcomputer adopts 8051 of U.S. AD company.
Ray tube adopts Switzerland COMET company metallic ceramics ray tube.
Portable high frequency x-ray flaw detector is made up of controller, driver, high pressure generator, X-ray tube and refrigeratory, as shown in Figure 1.
The high pressure producing method: the AC220V AC power is through rectifier bridge FB1, and L1, C1 rectifying and wave-filtering are the 300V direct current.C5, C6 are filament input power filter.C2, C3, L2, Q1 and D1 form chopper circuit, and driver is pressed according to the conducting width control tube of feedback adjusting Q1.C2, C3, C4, Q2, Q3 has constituted high-voltage driving circuit.Q3, Q2 take turns switch with the frequency of 40kHz, produce the high-frequency alternating current of 40kHz, are transported to the elementary of step-up transformer T1.The inferior utmost point of T1 produces the High Level AC Voltage of same frequency amplitude up to 10kV, is transported to the many voltage doubling rectifing circuits that are made of high-voltage capacitance and high-voltage diode.Voltage doubling rectifing circuit is carried out 28 voltage multiplying rectifiers to High Level AC Voltage, produces the high voltage direct current that reaches as high as 250kV then, drives X-ray tube.
The filament drive mode: electrochemical capacitor C7, C8, C9 and Q4, Q5 constitutes filament driving circuit.Q3, Q4 produce the 40kHz high-frequency alternating current in turn with the copped wave of 40kHz frequency, deliver to the elementary of filament transformer.The inferior utmost point of filament transformer produces the alternating current of real effective between 4～8V, heat filament.Filament heating back produces the electronics of free state, because there is very high voltage in X-ray tube two ends.The free state electronics can discharge and with very high speed impinge anode target from negative electrode, and plate target is subjected to the high-velocity electrons bump will produce X ray.Driver is according to the conducting width control tube stream of feedback adjusting Q6.Because Q6 conducting width can change the input voltage of filament transformer, and then the output voltage of change filament transformer, the filament current, the change pipe that change X-ray tube flow.
Pipe pressure-controlled circuit in the driver is to the alternating current process AC/DC of input, and the DC/DC circuit is the high-frequency alternating current of 40kHz with direct current copped wave, is transported to step-up transformer, becomes the High Level AC Voltage of 40kHz.Become the higher high voltage direct current of voltage through too much voltage doubling rectifing circuit again, drive X-ray tube.The DC voltage copped wave of pipe flow control circuit after with rectification is the alternating current of 40kHz, passes through filament isolating transformer in the high pressure generator again, and output AC electrical heating filament is realized the control of pipe stream by the dutycycle that changes chopper.Pipe flow control circuit output in the driver connects the filament isolating transformer in the high pressure generator, the output circuit of high pressure generator 2 connects X-ray tube 4 with high-tension cable 5, and the single-chip microcomputer in the controller 3 connects pipe pressure-controlled circuit and the pipe flow control circuit in the driver 1.
The pipe current control is: be connected to high pressure generator mA feedback as shown in Figure 3 and constitute error amplifier with the given pin 2 of receiving integrated LM358 simultaneously of the mA that is connected to controller 3.3 outputs of error amplifier LM358 pin are connected to integrated 3842 pin 2, constitute pwm control circuit, and its output pin 6 drives triode N1.Triode N1 drives isolating transformer T1.The secondary output of transformer T1 drives the power tube Q4 of filament driving circuit.Integrated NE555 forms its output pin 3 of oscillator and drives triode N2, N3.N2, N3 drives isolating transformer T2, and the secondary output of transformer T2 drives the power tube Q5 of filament driving circuit, Q6.
The pipe pressure-controlled is: be connected to high pressure generator kV feedback as shown in Figure 4 and constitute error amplifier with the given pin 2 of receiving integrated LM358 simultaneously of the kV that is connected to controller 3.Amplifier U1B (LM358) forms pwm control circuit with NE555.3 outputs of error amplifier LM358 pin are connected to the pin 5 of amplifier LM358, and NE555 output pin 6 drives triode N1.Triode N1 drives isolating transformer T1.The secondary output driving tube of transformer T1 is pressed the power tube Q1 of driving circuit.Integrated NE555 forms its output pin 3 of oscillator and drives triode N2, N3.N2, N3 drives isolating transformer T2, and the secondary output driving tube of transformer T2 is pressed the power tube Q2 of driving circuit, Q3.
Refrigeratory 6 cooling water pipes connect X-ray tube 4 cooling devices.
The portable high frequency x-ray flaw detector of the utility model, 1610 maximum peneration power 35mm and the power frequency machine is 24mm.22510 maximum peneration power 53mm and the power frequency machine is 45mm.The adjusting step-length of this machine is respectively 0.1kV and 0.1mA and the power frequency machine is respectively 1kV and 0.5mA, and technical indicator shows that portable high frequency x-ray flaw detector obviously is better than the power frequency machine.
Claims (3)
1, a kind of portable high frequency x-ray flaw detector comprises driver, high pressure generator, X-ray tube and refrigeratory, it is characterized in that:
Portable high frequency x-ray flaw detector is made up of controller, driver, high pressure generator, X-ray tube and refrigeratory, driver places the high pressure generator top, driver is made up of pipe pressure-controlled circuit and pipe flow control circuit, the pipe of driver presses driving circuit to connect the high pressure generator input circuit, pipe stream driving circuit output in the driver connects the filament isolating transformer in the high pressure generator, the output circuit of high pressure generator connects X-ray tube, and the single-chip microcomputer in the controller connects pipe pressure-controlled circuit and the pipe flow control circuit in the driver; Controller cooling control signal connects the controller on the refrigeratory, and the refrigeratory cooling water pipe connects the X-ray tube cooling device.
2, according to claim 1 portable high frequency x-ray flaw detector, it is characterized in that: said actuator tube pressure-controlled circuit and pipe flow control circuit:
The high pressure producing method: the AC220V AC power connects rectifier bridge (FB1), driving circuit is pressed in the rectification bridge output end adapting pipe, pipe presses driving circuit to connect step-up transformer (T1) elementary of high pressure generator, the many voltage doubling rectifing circuits of secondary connection of step-up transformer (T1), many voltage doubling rectifing circuits connect X-ray tube, controller output end connects the kV control PWM of driver, and high pressure kV feedback connects kV control PWM, and driving circuit is pressed in kV control PWM adapting pipe;
Filament drive mode: rectification bridge output end adapting pipe stream driving circuit, it is elementary that pipe stream driving circuit output terminal connects filament transformer (T2), the secondary connection X-ray tube of filament transformer filament, controller output end connects the mA control PWM of driver, high pressure mA feedback connects mA control PWM, mA control PWM adapting pipe stream driving circuit.
3, according to claim 1 portable high frequency x-ray flaw detector, it is characterized in that: said controller, form by power supply and single-chip microcomputer, the circuit connecting relation of controller is: the power supply input connects the pin 9 of 8051 chips, chip 8051 pin 39 connect the pin 1 of integrated package 74LS14, the pin 2 of 74LS14 connects through 1 pin that resistance R 3 is connected to optocoupler TLP521,8051 chip pin 21 connect the pin 3 of integrated package 74LS14, the pin 4 of 74LS14 is connected to the pin 3 of optocoupler TLP521 through resistance R 4, TLP521 pin 11 is the given pin of kV of driver, TLP521 pin 9 is the given pin of mA of driver, TLP521 pin 6 is a refrigeratory signal pin, and the pin 8 of TLP521 connects 8051 chip pin 27.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202180070U CN201262622Y (en) | 2008-09-17 | 2008-09-17 | Mobile high-frequency X ray fault detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202180070U CN201262622Y (en) | 2008-09-17 | 2008-09-17 | Mobile high-frequency X ray fault detector |
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| CN201262622Y true CN201262622Y (en) | 2009-06-24 |
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| CNU2008202180070U Expired - Fee Related CN201262622Y (en) | 2008-09-17 | 2008-09-17 | Mobile high-frequency X ray fault detector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975785A (en) * | 2010-12-03 | 2011-02-16 | 丹东奥龙射线仪器有限公司 | Portable high-frequency X-ray inspection machine |
| CN102543244A (en) * | 2010-12-08 | 2012-07-04 | 王全兴 | Biological irradiation device of high energy X-rays |
| CN103208924A (en) * | 2013-04-18 | 2013-07-17 | 东软飞利浦医疗设备***有限责任公司 | Kilovolt (KV) control method and system adopting digital technique |
| CN104836440A (en) * | 2015-05-11 | 2015-08-12 | 常熟市东神电子器件有限公司 | Step type high-voltage power supply device |
| CN105101597A (en) * | 2015-08-20 | 2015-11-25 | 丹东市中讯科技有限公司 | High-frequency portable X-ray machine |
| CN109060848A (en) * | 2018-09-05 | 2018-12-21 | 杭州惠威无损探伤设备有限公司 | A kind of portable high frequency direct-current X-ray defectoscope and its control method |
| CN111787676A (en) * | 2020-07-27 | 2020-10-16 | 辽宁道特凯力科技有限公司 | Frequency conversion KV control system of medical diagnosis X-ray high-voltage generator |
-
2008
- 2008-09-17 CN CNU2008202180070U patent/CN201262622Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975785A (en) * | 2010-12-03 | 2011-02-16 | 丹东奥龙射线仪器有限公司 | Portable high-frequency X-ray inspection machine |
| CN102543244A (en) * | 2010-12-08 | 2012-07-04 | 王全兴 | Biological irradiation device of high energy X-rays |
| CN103208924A (en) * | 2013-04-18 | 2013-07-17 | 东软飞利浦医疗设备***有限责任公司 | Kilovolt (KV) control method and system adopting digital technique |
| CN104836440A (en) * | 2015-05-11 | 2015-08-12 | 常熟市东神电子器件有限公司 | Step type high-voltage power supply device |
| CN105101597A (en) * | 2015-08-20 | 2015-11-25 | 丹东市中讯科技有限公司 | High-frequency portable X-ray machine |
| CN109060848A (en) * | 2018-09-05 | 2018-12-21 | 杭州惠威无损探伤设备有限公司 | A kind of portable high frequency direct-current X-ray defectoscope and its control method |
| CN111787676A (en) * | 2020-07-27 | 2020-10-16 | 辽宁道特凯力科技有限公司 | Frequency conversion KV control system of medical diagnosis X-ray high-voltage generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HRE COMPANY Free format text: FORMER NAME: HUARI PHYSICAL AND ELECTRIC CO., LTD., DANDONG |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 118001 No. 139, Dongping Avenue, Dandong, Liaoning Patentee after: DANDONG HUARI SCIENCE ELECTRIC CO., LTD. Address before: 118001 No. 139, Dongping Avenue, Dandong, Liaoning Patentee before: Dandong Huari Electric Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20160917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |