CN101852747A - Design method of constant-frequency gas-insulated X-ray flaw detector - Google Patents
Design method of constant-frequency gas-insulated X-ray flaw detector Download PDFInfo
- Publication number
- CN101852747A CN101852747A CN201010172311A CN201010172311A CN101852747A CN 101852747 A CN101852747 A CN 101852747A CN 201010172311 A CN201010172311 A CN 201010172311A CN 201010172311 A CN201010172311 A CN 201010172311A CN 101852747 A CN101852747 A CN 101852747A
- Authority
- CN
- China
- Prior art keywords
- ray
- frequency
- flaw detector
- constant
- filament
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000013461 design Methods 0.000 title abstract description 5
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000010355 oscillation Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical group [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 230000035515 penetration Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Landscapes
- X-Ray Techniques (AREA)
Abstract
The invention discloses a design method of a constant-frequency gas-insulated X-ray flaw detector. The design method comprises the following steps of: (a) designing a high-voltage wire package of the X-ray flaw detector and a filament wire package of an X-ray tube to share one iron core to reduce the turns of a filament wire package; (b) forming a oscillation circuit by using distributed capacitors and distributed inductors existing because a X-ray generator is formed by connecting a high-pressure transformer (comprising a filament transformer) and the X-ray tube in parallel, wherein the oscillation circuit has an optimal resonance point so that the output voltage frequency of a control part is adjusted and fixed on the resonance point while the X-ray generator is transformed into a purely resistive load; and (c) stabilizing a ray tube current by adjusting the pulse width of the output voltage frequency of the control part because of the reduction of the filament turns. The invention changes the design idea of the X-ray flaw detector of the modern variable-frequency industry, overcomes all defects of the variable-frequency flaw detector so that the constant-frequency flaw detector can save electricity over 40 percent and has great through thickness, high sensitivity, little dispersion and environmental protection.
Description
Technical field
The present invention relates to the industrial flaw detection machine, especially relate to the method for designing of constant-frequency gas-insulated X-ray flaw detector.
Background technology
X-ray flaw detector will be adjusted the X-ray tube both end voltage according to the thickness of detected steel plate in the industrial nondestructive testing process.In order to satisfy little, in light weight, the portable needs of volume, x-ray flaw detector all is designed to a shared iron core with the filament transformer of high-tension transformer and ray tube at present, for when adjusting voltage, filament voltage is constant, and it has adopted the way of frequency modulation to realize.Because x ray generator is inductive load, therefore have the following disadvantages, mainly show as: one, voltage adjusting range are narrower, film making penetration thickness scope narrows down; Two, electric current is big, power consumption is high, and causes hi-line bag and ray tube thermal value fragile greatly; Three, because the diffusing dosage that shines of the variation X ray of frequency conversion is bigger, sensitivity is lower, and environmental pollution simultaneously is comparatively serious.
Summary of the invention
The invention reside in provides a kind of energy-conserving and environment-protective, the big method for designing that detects sensitive high constant-frequency gas-insulated X-ray flaw detector of penetration thickness.
For achieving the above object, the present invention takes following technical proposals:
The method for designing of constant-frequency gas-insulated X-ray flaw detector of the present invention, undertaken by following step:
A, the hi-line bag of x-ray flaw detector and the filament wire bag of X-ray tube are designed to totally one iron core, the filament wire bag number of turn reduces;
B, because x ray generator is to be formed in parallel by high-tension transformer (containing filament transformer) and X-ray tube, also just have distributed capacitance and distributed inductance, and form oscillation circuit, an optimum resonance point is arranged in the oscillation circuit.If the frequency of the output voltage of control section is transferred on the tuning-points is fixed up, this moment, x ray generator became pure resistive load (voltage and current waveform size, phase place identical);
C, because the minimizing of the filament number of turn can realize constant ray tube current by the pulsewidth of adjusting the control section output voltage frequency.
The invention has the advantages that the design concept that has changed existing frequency conversion industrial X-ray diagnostic machine, overcome all deficiencies of frequency conversion defectoscope, make the constant frequency defectoscope to economize on electricity more than 40%.And penetration thickness is big, and is highly sensitive, the few environmental protection of scattering.Owing to take existing x ray generator is become resistive load by original inductive load, reduce the filament transformer number of turn, therefore can be by increasing the interference that pulse width reduces higher hamonic wave.In order to further specify the marked improvement of institute of the present invention tool, the present invention is with rated capacity 250KV, and 5MA provides constant frequency and frequency conversion x-ray flaw detector main performance contrast table (supply voltage 220V/50HZ).
Contrast table:
Constant frequency x-ray flaw detector frequency conversion x-ray flaw detector
| Voltage is adjusted 85kV-250kV voltage and is adjusted 150kV-250kV pulse-width adjustment 2.4ms-1.2ms frequency adjustment 250Hz-160Hz constant frequency 110Hz ± constant pulsewidth 1ms ± power output 250kV * 5mA=1250W power output 250kV * 5mA=1250W input power 220V * 6.6A=1452W input power 220V * 12A=2640W power attenuation 1452W-1250W=202W power attenuation 2640W-1250W=1390W detection sensitivity≤1% detection sensitivity 〉=1.8% |
As can be seen from the above table, with the x-ray flaw detector of power, the reactive loss of constant frequency x-ray flaw detector has reduced more than 1,000 watt, and sensitivity improves nearly one times, has therefore improved accuracy of detection (anti-flase drop) greatly, the little and environmental protection of scattered quantum simultaneously.
Description of drawings
Fig. 1 is the constant-frequency gas-insulated X-ray flaw detector schematic block circuit diagram of making according to method for designing of the present invention.
Embodiment
The method for designing of constant-frequency gas-insulated X-ray flaw detector of the present invention, undertaken by following step:
A, the high-tension transformer of X ray industrial flaw detection machine and the filament transformer of X-ray tube are designed to a shared iron core;
B, because x ray generator is an inductive load, there is the resonant tank of being made up of distributed inductance and distributed capacitance in its, therefore, the frequency of impressed voltage is adjusted into the resonance frequency of described resonant tank, makes x ray generator become pure resistive load;
C, realize stablizing the tube current of X-ray tube by the pulse width of adjusting impressed voltage.
As shown in Figure 1, following is the constant-frequency gas-insulated X-ray flaw detector of making according to method for designing of the present invention:
1, high-voltage rectifying part
Adopt serial connection controllable silicon (SCR) single-phase half-controlled bridge-type rectifier system, controllable silicon is subjected to the triggering with current synchronous signal, and the input pulsating current is filtered into smooth direct current through LC then, and voltage is feedback input controllable silicon controller after resistance R 2 samplings.Controllable silicon controller adopts the light-coupled isolation technology, high pressure forceful electric power and low pressure weak current part kept apart, thereby in the safety that guarantees to have guaranteed under the linear condition use and maintenance personal.This controllable silicon controller adopts the reliable triggering of proportional and integral controller (PI) and integrated circuit TL494, thereby has guaranteed control voltage output accuracy.
2, electric current (mA) copped wave part
Adopt advanced high power switch tube module (IGBT), under the control of impulse regulator (PI) and integrated circuit TL494, carry out the constant frequency pulse width modulation, stable with the tube current that guarantees x ray generator.Electric current (mA) sampling is obtained by resistance R 20, R34, by the voltage follower that integrated circuit LM324 (ICI) forms itself and regulator is isolated, to guarantee the precision of control.
3, control and display part
This part most of is done unified control by microcontroller 89C51 to above-mentioned two, in time makes the control and the protection instruction of various requirement and shows on light-emitting diode display, thereby make the staff can in time understand the work at present state.This machine detects six kinds of common faults automatically and shows on display pannel.Its implication is as follows: daily x ray generator training and operation, carry out fully automatically with microcomputerized control, and need not manual intervention; machine is equipped with from shutting down one day to one month with interior automatic instruction machine program; do not establish the instruction switch, and when start automatically according to carrying out the instruction machine stop time, simplified operation.
Claims (1)
1. the method for designing of a constant-frequency gas-insulated X-ray flaw detector is characterized in that: undertaken by following step:
A, the high-tension transformer of X ray industrial flaw detection machine and the filament transformer of X-ray tube are designed to a shared iron core;
B, because x ray generator is an inductive load, there is the resonant tank of being made up of distributed inductance and distributed capacitance in its, therefore, the frequency of impressed voltage is adjusted into the resonance frequency of described resonant tank, makes x ray generator become pure resistive load;
C, realize stablizing the tube current of X-ray tube by the pulse width of adjusting impressed voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010172311A CN101852747A (en) | 2010-05-14 | 2010-05-14 | Design method of constant-frequency gas-insulated X-ray flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010172311A CN101852747A (en) | 2010-05-14 | 2010-05-14 | Design method of constant-frequency gas-insulated X-ray flaw detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101852747A true CN101852747A (en) | 2010-10-06 |
Family
ID=42804333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010172311A Pending CN101852747A (en) | 2010-05-14 | 2010-05-14 | Design method of constant-frequency gas-insulated X-ray flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101852747A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2655233Y (en) * | 2003-12-02 | 2004-11-10 | 吴城南 | Portable constant frequency gas insulation X ray industrial flaw detector |
| CN101309529A (en) * | 2008-06-27 | 2008-11-19 | 武汉理工大学 | An intelligent control device and method for a high-power energy-saving electromagnetic cooker |
-
2010
- 2010-05-14 CN CN201010172311A patent/CN101852747A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2655233Y (en) * | 2003-12-02 | 2004-11-10 | 吴城南 | Portable constant frequency gas insulation X ray industrial flaw detector |
| CN101309529A (en) * | 2008-06-27 | 2008-11-19 | 武汉理工大学 | An intelligent control device and method for a high-power energy-saving electromagnetic cooker |
Non-Patent Citations (1)
| Title |
|---|
| 吴成南等: "XCF-3205A型携带式两用恒频气绝缘X射线探伤机", 《2002年晋冀鲁豫鄂蒙川沪云贵甘十一省市区机械工程学会学术年会论文集（河南分册）》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103969527B (en) | A kind of discharge and recharge life detecting device of high voltage ceramic capacitor | |
| CN201260080Y (en) | Device for reactive compensation and harmonic suppression of intelligent power system | |
| CN203069734U (en) | 300kW transformer partial discharge and induced over voltage withstand test system | |
| CN201509085U (en) | A fast switching low-voltage intelligent reactive power compensation device | |
| CN102570474B (en) | Triggering and conducting method used for switching of capacitor of thyristor AC non-contact switch | |
| CN201328101Y (en) | Safe and reliable outer exciting magnetic control electric reactor device | |
| CN103595289A (en) | Multi-pulse high-voltage triggering device of rotary switch | |
| CN202471899U (en) | Integral alternating-current withstand voltage test device | |
| CN201374562Y (en) | Dynamic electric power filtering compensation device | |
| CN203026945U (en) | Energy-saving device for absorbing harmonic waves in power grid | |
| CN203025313U (en) | High-voltage variable-frequency series resonance test power supply | |
| CN208754063U (en) | A kind of harmonic energy recycling circuit | |
| CN106933290A (en) | The intelligent high-precision voltage stabilizing device of self adaptation dynamic power wide | |
| CN202334012U (en) | Power control system for wireless power transmission device based on adjustable frequency | |
| CN101852747A (en) | Design method of constant-frequency gas-insulated X-ray flaw detector | |
| CN1979185A (en) | Novel high-pressure frequency variator low energy-consumption load testing method | |
| CN207746524U (en) | Percussion welder control system | |
| CN201297840Y (en) | A medium frequency induction furnace | |
| CN201290007Y (en) | Energy-saving purification device for digital power grid | |
| CN108127222A (en) | Percussion welder control system | |
| CN102969900A (en) | Portable frequency-conversion high-voltage DC (Direct Current) power supply | |
| CN201733234U (en) | Special-purpose inverter power supply for skin effect cable | |
| CN209120077U (en) | A kind of uninterruptible power supply inverter output circuit of resistance to load shock | |
| CN101667736A (en) | Three-stage brushless micro gas turbine electricity generation grid-connecting device and grid connecting method | |
| CN204089207U (en) | A kind of low pressure static reacance generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20101006 |
|
| CI01 | Publication of corrected invention patent application |
Correction item: Rejection of patent application Correct: Dismiss False: Reject Number: 33 Volume: 28 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENT APPLICATION REJECTION OF AFTER PUBLICATION; FROM: REJECTION TO: REVOCATION REJECTED |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101006 |