CN108051463B - Wireless integrated X-ray flaw detector - Google Patents
Wireless integrated X-ray flaw detector Download PDFInfo
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- CN108051463B CN108051463B CN201810135147.XA CN201810135147A CN108051463B CN 108051463 B CN108051463 B CN 108051463B CN 201810135147 A CN201810135147 A CN 201810135147A CN 108051463 B CN108051463 B CN 108051463B
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 33
- 238000004846 x-ray emission Methods 0.000 claims description 19
- 239000003990 capacitor Substances 0.000 claims description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 14
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 239000010703 silicon Substances 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 8
- 229910018503 SF6 Inorganic materials 0.000 claims description 6
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 6
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 101100343195 Hypocrea jecorina lga1 gene Proteins 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/18—Investigating the presence of flaws defects or foreign matter
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/03—Investigating materials by wave or particle radiation by transmission
- G01N2223/04—Investigating materials by wave or particle radiation by transmission and measuring absorption
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1016—X-ray
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/60—Specific applications or type of materials
- G01N2223/646—Specific applications or type of materials flaws, defects
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- X-Ray Techniques (AREA)
Abstract
The invention belongs to the technical field of industrial X-ray machines, and particularly relates to a wireless integrated X-ray flaw detector. The wireless integrated X-ray flaw detector comprises a controller and a generator, wherein the controller is a PDA, the generator is controlled by a touch screen through a PLC control system, and the generator comprises a shell body which is formed by a cover plate I, a pipe barrel I, a device plate, a pipe barrel II, a pipe barrel III, a pipe barrel IV and a cover plate II which are detachably connected in sequence; the upper part of the wall of the pipe barrel I is uniformly provided with through holes with uniform size for heat dissipation, and a circuit control board, a power supply and a wireless transceiver are detachably connected in the pipe barrel I respectively. The circuit control board is used for controlling the centrifugal fan and the primary of the high-voltage package, and detecting the currents of the pressure sensor, the temperature relay and the X-ray tube; the wireless transceiver is used for receiving and transmitting signals of the controller, and the wireless integrated X-ray flaw detector has the advantages of high working efficiency, high heat dissipation speed, difficult interference, adjustable parameters, portability and the like.
Description
Technical Field
The invention belongs to the technical field of industrial X-ray machines, and particularly relates to a wireless integrated X-ray flaw detector.
Background
The principle of X-ray flaw detector is a nondestructive flaw detection method for finding flaws in X-ray penetrating matter and the property of attenuation in the matter. The X-rays can inspect internal defects of metallic and non-metallic materials and their products. Such as porosity, slag inclusions, lack of penetration, etc. in the weld. Along with the development of science and technology, the X-ray flaw detector is rapidly applied to industries such as national defense, aerospace, ship petroleum and the like.
The X-ray flaw detector of the invention is initially invented by taking oil as an insulating medium, the weight is heavier, the controller is composed of scattered parts, the size is larger, the operation is complicated, then through several technical innovations, the invention of the gas-insulated X-ray flaw detector is realized, the oil-insulated X-ray flaw detector is replaced, and a semi-integrated controller is also developed immediately, so that the scattered part controller is replaced.
The current X-ray flaw detector is a portable industrial X-ray flaw detector, mainly comprising a controller, a link cable and a generator, wherein the controller adjusts time and kilovolts through a mechanical knob, and the controller displays: kilovolt fault, milliamp fault, over-temperature, exposure time, single chip microcomputer control and 220V power supply; the linking mode is as follows: 25 m 10 x 1.5 cable or 50 m 10 x 1.5 cable link; the generator consists of a high-pressure bag, an X-ray tube, a radiator and an axial flow fan. The portable industrial X-ray flaw detector has the following problems: (1) The controller has a certain voltage drop to the generator cable link, and the 25 meter length of the 10 x 1.5 cable can attenuate the voltage by 30V; (2) The cable used for linking the controller to the generator is heavy in weight, laborious to carry and limited in flaw detection distance by the cable; (3) 220V axial flow fan 220m per hour air quantity 3 Every hour, portable industrial X-ray flaw detector needs 1: 1, resting, low working efficiency, long heat dissipation time, poor heat dissipation effect and easy burning of an X-ray tube; (4) the controller is large in size and cannot adjust parameters; (5) The magnetic positioning of the single-chip microcomputer control system of the portable industrial X-ray flaw detector is easy to be interfered by the environment, and the single-chip microcomputer control system can be interfered and unstable when encountering strong magnetism, such as mobile phone signals.
Therefore, it is very important to develop a wireless portable flaw detector with high working efficiency, high heat dissipation speed, less interference, adjustable parameters and portability.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide a wireless integrated X-ray flaw detector. The wireless integrated X-ray flaw detector has the advantages of high working efficiency, high heat dissipation speed, difficult interference, adjustable parameters, portability and the like.
In order to solve the technical problems, the invention adopts the technical scheme that.
A wireless integrated X-ray flaw detector is characterized in that: the intelligent control system comprises a controller and a generator, wherein the controller adopts a PLC control system for a PDA to control the generator through a touch screen, and the control system comprises a PLC, a generator pressure detection module, a generator temperature detection module, a power supply module, a kilovolt control module, a kilovolt detection module, a silicon controlled drive module and a main loop module. The PLC is respectively connected with the generator pressure detection module, the generator temperature detection module, the power supply module, the kilovolt control module, the kilovolt detection module, the silicon controlled drive module and the main loop module, and the main loop module is respectively connected with the kilovolt control module, the kilovolt detection module and the silicon controlled drive module.
In a preferred mode of the invention, the generator comprises a shell body consisting of a cover plate I, a tube I, a device plate, a tube II, a tube III, a tube IV and a cover plate II which are sequentially and detachably connected; the upper part of the wall of the pipe barrel I is uniformly provided with through holes with uniform size for heat dissipation, and the circuit control board, the power supply and the wireless transceiver are detachably connected in the pipe barrel I respectively. The circuit control board is used for controlling the centrifugal fan and the primary of the high-voltage package, and detecting the currents of the pressure sensor, the temperature relay and the X-ray tube; the wireless transceiver is used for receiving and transmitting signals of the controller;
the lower end of the device board is detachably connected with a temperature relay and a high-voltage package through a clamping piece and is positioned in the tube II, and the high-voltage package is connected with an X-ray tube of an X-ray emission device through a U-shaped binding post;
the tube III is of a bowl-shaped structure and is used for accommodating and mounting an X-ray emitting device, a shielding cover II is detachably connected to the outer side of a cathode part of the X-ray emitting device, the upper end part of the shielding cover II is of an opening structure, the opening of the shielding cover II is provided with the shielding cover I relatively, and an anode part of the X-ray emitting device penetrates through the bowl bottom and is positioned in the tube IV; the bottom of the bowl wall is respectively and electrically connected with the temperature sensor and the centrifugal fan through the wiring disc; the outside of the anode part of the X-ray emission device is detachably connected with a radiator cover at the outside of the anode part.
The radiator structure comprises a cylinder, one side of the cylinder is integrally connected with an X-ray emission port, a temperature sensor is detachably connected to the outer wall of the cylinder, the temperature sensor is opposite to the X-ray emission port, air pages are uniformly distributed on two sides of the temperature sensor and the X-ray emission port and are integrally structured with the cylinder, the distance between the air pages is 8-12mm, the air pages are opposite to a plurality of groove groups on the cylinder III, through holes matched with the X-ray emission port of the radiator are formed in the upper part of the cylinder wall of the cylinder IV, a plurality of through holes are formed in the lower part of the cylinder wall of the cylinder IV and used for exhausting and radiating, a centrifugal fan is arranged below the cylinder IV, and the centrifugal fan is detachably mounted on the cover plate II; the fan blade of the centrifugal fan corresponds to the position of the through hole at the lower part of the tube IV.
According to another preferred scheme of the invention, the cover plate I and the cover plate II are round steel plates, the inner surfaces of the cover plate I and the cover plate II are of convex structures, and the outer sides of the cover plate I and the cover plate II are detachably connected with the end ring I and the end ring II respectively.
Further, the end ring I and the end ring II are integrally formed by rubber and are in a curved annular shape, and one side of a curved surface of the curved annular shape is in a concave triangle structure.
Furthermore, 3 cylindrical structures with through holes are equally distributed on the inner side of the curved annular shape, and the height of the cylinders is 1-2cm.
In a third preferred mode of the present invention, the device board is provided with a first through hole, a second through hole and a third through hole. The first through hole is detachably connected with a seven-core column wiring board, the upper electric wire of the seven-core column wiring board is respectively and electrically connected with a circuit control board, a power supply and a wireless transceiver, and the lower electric wire is respectively and electrically connected with a high-voltage package and a four-core column wiring board; the second through hole can be detachably connected with the charging connector through a screw to charge sulfur hexafluoride gas into the integral pipe barrel; the third through hole is detachably connected with a pressure sensor for measuring sulfur hexafluoride gas pressure in the integral pipe barrel.
Further, the lower end face of the device plate is detachably connected with 2 clamping pieces with opposite positions through screws and positioned in the pipe barrel II, and one clamping piece is detachably connected with a temperature relay through screws; the iron core is fixedly connected between the 2 clamping pieces, the iron core penetrates through the high-voltage package to fix the high-voltage package between the 2 clamping pieces, the secondary of the high-voltage package is connected with an X-ray tube of the X-ray emitting device through a U-shaped wiring terminal, the outer wall of the U-shaped wiring board is detachably connected with a shielding cover I through a screw, and the lower end of the shielding cover I is of an opening structure.
Further, a plurality of groove groups are uniformly arranged on the outer side of the bowl wall and used for heat dissipation, two structures are contained in the groove groups, the depth of each groove is 16mm, the width of each groove is 12mm, one groove is a closed type hidden groove, the other groove is an upper end open type groove, each groove group contains a closed type groove and two upper end open type grooves, and through holes matched with screws are formed in the upper end faces of the closed type grooves and used for reinforcing connection with the tube IV and heat dissipation; the upper end open type groove is used for air intake and ventilation.
The invention has the beneficial effects that:
(1) The invention relates to a wireless integrated X-ray flaw detector, which consists of a controller and a generator, wherein the current portable industrial X-ray flaw detector consists of the controller, a link cable and the generator, the link cable is generally 25 m 10X 1.5 cable or 50 m 10X 1.5 cable which are linked, and the weight is about 10 jin.
(2) The wireless integrated X-ray flaw detector of the invention loads the integrated circuit into the generator, adopts a radio transmission mode to replace a link cable, can reduce the voltage drop of 30V (25 m 10X 1.5 cable can attenuate the voltage by 30V) from the controller to the generator cable link, and effectively avoids the attenuation problem when the integrated circuit is loaded into the generator.
(3) Compared with the current portable industrial X-ray flaw detector controller which adopts a single-chip microcomputer control system and adopts a PLC control system to control a generator through a touch screen, the controller of the wireless integrated X-ray flaw detector of the invention adopts the single-chip microcomputer control system to control the controller through the single-chip microcomputer, the single-chip microcomputer control can be interfered by external interference signals when encountering strong magnetism (such as mobile phone signals) to control the controller through the single-chip microcomputer, the stability is poor, and the external interference signals can not influence the system operation when encountering strong magnetism (such as mobile phone signals), so that the reliability is high; the invention adopts 24V built-in battery, and the current portable industrial X-ray flaw detector controller supplies power for 220V, and compared with the invention, the invention saves electric energy.
(4) The controller of the wireless integrated X-ray flaw detector can display more than 10 parameters, and the kilovolt, the time and the milliamp are regulated through the touch screen, so that the parameters can be regulated at any time, and the wireless integrated X-ray flaw detector is convenient and quick; the current portable industrial X-ray flaw detector controller only displays 4 parameters of kilovolt faults, milliamp faults, over-temperature and exposure time, the time is regulated by a mechanical knob, kilovolt is regulated, and the regulation is limited and inconvenient.
(5) The X-ray working site is very complex and can cause damage to human bodies, the distance required for protection of a special site can reach more than 25 meters, and the lengthened connecting cable can attenuate the final penetrating power, so that the invention integrates part of circuits in the current portable industrial X-ray flaw detector generator controller and then is arranged in the generator, the transmission distance can reach 1.5 kilometers in open field by adopting wireless communication, the distance can reach 200 meters under the shielding condition, the requirement of the protection distance is met, the voltage of the X-ray machine is not attenuated, meanwhile, the lithium battery 24V12Ah is arranged in the controller, the built-in battery can be continuously used for 15 hours under the condition of no external power supply, the site requirement is met, 433MHZ frequency transmission is met, and the national civil frequency requirement is met.
(6) The X-ray tube of the flaw detector is 95% converted into heat when in operation, 5% converted into X-ray, the temperature of the target surface of the X-ray tube can reach hundreds of degrees, the X-ray tube is burnt out when the heat is not well dissipated through the radiator, the flaw detector generally adopts an air cooling system to pass through the air flow velocity, the surface temperature of the radiator is taken away when the flaw detector flows through the radiator, the heat dissipation purpose is achieved, the air flow velocity determines the heat dissipation quality, the heat dissipation condition determines the working efficiency of the flaw detector, the current portable industrial X-ray flaw detector adopts a 220V axial flow fan, and the air quantity of the 220m of the air flow is 3 The working efficiency is 1 minute, rest is 1 minute, and the wireless integrated X-ray flaw detector adopts a turbine fan (the air volume reaches 600 m) 3 And h), a smooth ventilation channel is formed by combining the groove design of the tube III, the fan blade spacing of the radiator and the through hole of the tube IV, so that external cool air can be rapidly extracted into the generator, and hot air can be rapidly discharged from the through hole of the tube IV, the heat dissipation capacity is increased as a whole, the heat dissipation system can continuously work for 10 minutes without rest, and the work efficiency is greatly improved.
Drawings
Fig. 1 is a front view of the external structure of the present invention.
Fig. 2 is a left side view of the external structure of the present invention.
Fig. 3 is a right side view of the external structure of the present invention.
Fig. 4 is a perspective view of the external structure of the present invention.
Fig. 5 is a top view of the external structure of the present invention.
Fig. 6 is a schematic view of the internal structure of the present invention.
Fig. 7 is a top view of the tube iii of the present invention.
Fig. 8 shows a C-direction anatomy of the tube iii according to the invention.
Fig. 9 is a top view of the heat sink of the present invention.
Fig. 10 is a bottom view of the heat sink of the present invention.
Fig. 11 is an a-direction anatomical view of the heat sink of the present invention.
Fig. 12 is a schematic structural view of a device board of the present invention.
Fig. 13 is a schematic block diagram of a detection control system.
Fig. 14 is a circuit diagram of a generator pressure detection module according to the present invention.
Fig. 15 is a circuit diagram of a generator temperature detection module according to the present invention.
Fig. 16 is a circuit diagram of a kv detection module according to the present invention.
Fig. 17 is a circuit diagram of a main loop module of the present invention.
Fig. 18 is a circuit diagram of a power module according to the present invention.
Fig. 19 is a circuit diagram of a kv control module of the present invention.
Fig. 20 is a circuit diagram of a scr driving module according to the present invention.
In the drawing, 1 is a tube I, 2 is a device plate, 2-1 is a first through hole, 2-2 is a second through hole, 2-3 is a third through hole, 3 is a tube II, 4 is a tube III, 4-1 is an upper end opening type groove, 4-2 is a closed type hidden groove, 4-3 is a part for connecting a 4-wire column wiring board, 5 is a tube IV, 5-1 is a window, 6 is a cover plate I, 7 is a cover plate II, 8 is an end ring I, 9 is an end ring II, 10 is a seven-wire column wiring board, 11 is a pressure sensor, 12 is a high-voltage package, 13 is a U-shaped wiring board, 14 is a clamping piece, 15 is a temperature relay, 16 is an iron core, 17 is a shielding cover I, 18 is a shielding cover II, 19 is an X-ray emission device, 20 is a 4-wire column wiring board, 21 is a temperature sensor, 22 is a centrifugal fan, 23 is a radiator, 23-1 is an X-ray emission port, and 23-2 is a fan.
Detailed Description
For a further understanding of the present invention, preferred embodiments of the invention are described below in conjunction with the examples, but it should be understood that these descriptions are merely intended to illustrate further features and advantages of the invention, and are not limiting of the claims of the invention.
The wireless integrated X-ray flaw detector comprises a controller and a generator. The controller is a PDA, a PLC control system is adopted to control the generator through a touch screen, kilovolts, time and milliamperes are regulated through the touch screen, and a 24V battery is built in the controller; the controller displays: the device comprises a power supply voltage, a generator pressure, a generator temperature, an exposure real-time, an exposure real-time voltage, an exposure real-time milliamp, a device starting-up total time, a device exposure total number of times, a device starting-up total number of times and a state (in preparation, in exposure, kilovolts are too high, kilovolts are too low, milliamp is too high, milliamp is too low, power supply voltage is too high, power supply voltage is too low, exposure rest pressure is too low, and a pressure gauge is damaged).
The generator of the invention comprises a tube I, a tube II, a device plate, a tube III, a tube IV, a cover plate I, a cover plate II, an end ring I, an end ring II, a seven-core column wiring board, a pressure sensor, a high-voltage package, a U-shaped wiring board, a clamping piece, a temperature relay, an iron core, a shielding case I, a shielding case II, an X-ray emitting device, a 4-wire column wiring board, a temperature detector, a centrifugal fan (turbo fan), a temperature sensor and a radiator as shown in figures 1 to 12.
The upper part of the wall of the pipe barrel I is uniformly provided with through holes with uniform size for heat dissipation; the utility model discloses a device, a pipe barrel I, a pipe barrel II, a pipe barrel III, a pipe barrel IV, a cover plate I and a cover plate II, which are respectively and detachably arranged on the outer sides of the pipe barrel I and the pipe barrel IV, are round steel plates, the inner surfaces of the cover plate I and the cover plate II are of convex structures, 6 through holes are uniformly formed in the parts, close to the edges, of the cover plate I and the cover plate II, the end ring I and the end ring II are integrally formed by rubber and are in a curved surface circular ring shape, one side of a curved surface of the curved surface circular ring is in a concave triangle structure, the X-ray generator is fixed on the circular pipe wall when a pipeline is subjected to external transillumination, and the concave triangle structure can be clamped on the outer wall, so that the X-ray generator is convenient to fix; when the boiler pressure vessel is irradiated, the inlet is generally circular, the common square end ring is difficult to enter the vessel for working, and the circular end ring is convenient to enter; the center of the concave triangle and the X-ray center are horizontal lines, so that the transparent workpiece can be easily aligned. 3 cylinder structures with through holes are equally distributed on the inner side of the curved surface ring, the height of the cylinder is 1-2cm, the cylinder structure has a damping effect, has a rubber damping function, saves damping columns, and shortens the length of the generator. The diameter of the upper part of the through hole is larger than that of the lower part of the through hole, the through hole is matched with a countersunk head screw, the end ring I and the end ring II can be detachably arranged on the outer sides of the cover plate I and the cover plate II, and the shell main body is formed.
The inside of the pipe barrel I is detachably connected with a circuit control board, a power supply and a wireless transceiver respectively through screws. The circuit control board is used for controlling the centrifugal fan and the primary of the high-voltage package, and detecting the currents of the pressure sensor, the temperature relay and the X-ray tube; the wireless transceiver is used for receiving and transmitting signals of the controller.
The device board is provided with a first through hole, a second through hole (an inflation inlet acts) and a third through hole. The first through hole is detachably connected with a seven-core column wiring board through screws, 7 wires are respectively arranged at the upper end and the lower end of the seven-core column wiring board, the upper end 7 wires are respectively electrically connected with a circuit control board, a power supply and a wireless transceiver which are positioned in the pipe barrel I for normal operation, 3 wires at the lower end are electrically connected with the primary of the high-voltage package, and 4 wires at the lower end are electrically connected with the four-core column wiring board; the second through hole can be detachably connected with the charging connector through a screw to charge sulfur hexafluoride gas into the integral pipe barrel; the third through hole is detachably connected with a pressure sensor through a screw and is used for measuring the sulfur hexafluoride gas pressure in the integral pipe barrel.
The lower end face of the device plate is detachably connected with 2 clamping pieces with opposite positions through screws and positioned in the pipe barrel II, and one clamping piece is detachably connected with a temperature relay through screws; the iron core is fixedly connected between the 2 clamping pieces, the iron core penetrates through the high-voltage package to fix the high-voltage package between the 2 clamping pieces, the secondary of the high-voltage package is connected with an X-ray tube of the X-ray emitting device through a U-shaped wiring terminal, the outer wall of the U-shaped wiring board is detachably connected with a shielding cover I through a screw, and the lower end of the shielding cover I is of an opening structure.
The tube III is of a bowl-shaped structure and is used for accommodating and mounting an X-ray emitting device, the X-ray emitting device comprises three parts, the first part is a cathode part, the outer side of the cathode part is detachably connected with a shielding cover II, the upper end part of the shielding cover II is of an opening structure, the shielding cover II and an opening of the shielding cover I are in relative cooperation and work and are not attached to each other, and the tube III is used for preventing high-voltage discharge and facilitating the normal work of the X-ray emitting device; the second part is a vacuum-tight ceramic tube, the third part is an anode part, the bowl bottom is a circular through hole for passing through the anode part, and the anode part is positioned in the tube IV; the bowl is characterized in that a plurality of groove groups are uniformly arranged on the outer side of the bowl wall and used for heat dissipation, two structures are contained in the groove groups, the depth of each groove is 16mm, the width of each groove is 12mm, one groove is a closed type hidden groove, the other groove is an upper end open type groove, the groove groups comprise a closed type groove and two upper end open type grooves, and through holes matched with screws are formed in the upper end faces of the closed type grooves and used for reinforcing connection with a pipe barrel IV and heat dissipation; the upper end open type groove is used for air intake and ventilation, one end of the bottom of the bowl wall is detachably connected with a 4-wire column wiring disc through a screw, 4 wires are arranged at the upper end and the lower end of the 4-wire column wiring disc, 2 wires at the lower end are electrically connected with a temperature sensor, and in addition, 2 wires at the lower end are electrically connected with a centrifugal fan; the outside of the anode part of the X-ray emission device is detachably connected with a radiator cover on the outside of the anode part through a screw.
The radiator structure comprises a cylinder, one side of the cylinder is integrally connected with an X-ray emission port, a temperature sensor is detachably connected to the outer wall of the cylinder through a screw, the temperature sensor is opposite to the X-ray emission port, air pages are uniformly distributed on two sides of the temperature sensor and the X-ray emission port, the air pages are integrally structured with the cylinder, the air page distance is 10mm (determined according to the air discharge amount of a fan), the air pages are convenient to ventilate, the position of the air pages corresponds to the through holes of a plurality of groove groups on the cylinder III, which are more convenient for ventilation, through holes matched with the X-ray emission port of the radiator are formed in the upper part of the cylinder wall of the cylinder IV, a plurality of through holes are formed in the lower part of the cylinder wall of the cylinder IV and are used for radiating, a centrifugal fan is placed below the cylinder IV, the centrifugal fan is detachably mounted on a cover plate II, the center part of the cover plate II is of a circular through hole structure, the periphery of the circular through hole structure is provided with 4 through holes, and the circular through holes are uniformly distributed on the periphery of the cover plate II through the circular through holes; the cover plate II is detachably arranged on the pipe barrel IV through screws, and the fan blades of the centrifugal fan correspond to the through holes at the lower part of the pipe barrel IV in position and are matched with each other to exhaust air and dissipate heat outside the whole pipe barrel.
The above connection modes through the screws are matched with the sealing rings.
As shown in fig. 13-20, the X-ray inspection machine further includes a detection control system, which includes a PLC, a generator pressure detection module, a generator temperature detection module, a power module, a kv control module, a kv detection module, a thyristor drive module, and a main loop module.
The PLC is respectively connected with the generator pressure detection module, the generator temperature detection module, the power supply module, the kilovolt control module, the kilovolt detection module, the silicon controlled drive module and the main loop module, and the main loop module is respectively connected with the kilovolt control module, the kilovolt detection module and the silicon controlled drive module.
The generator pressure detection module comprises a pressure sensor YL and a pressure-frequency conversion chip LM331, and the pressure sensor is arranged on the generator; the 8 pin of the voltage-frequency conversion chip LM331 is grounded after passing through a resistor R27 and a filter capacitor C22 in sequence, and the 5 pin of the LM331 is also grounded through the capacitor C22; the 7 feet of LM331 are split into two paths: one path is grounded through a capacitor C21, and the other path is connected with the negative electrode of the pressure sensor through a circuit R26; the 4 feet of the LM331 are grounded, after the 6 feet of the LM331 are connected with the 1 feet, the 6 feet are connected with one end of a resistor R23, the 1 feet are connected with one end of a capacitor C20, the other end of the resistor R23 is connected with the other end of the capacitor C20 and then is connected with one end of a resistor R25, and the other end of the resistor R25 is grounded; the 2 pin of the LM331 is connected with one end of a resistor R24 through an adjustable resistor W5, and the other end of the resistor R24 is grounded; the 3-pin of LM331 is connected to the PLC.
Specifically, the pressure sensor is a two-wire pressure sensor, 12V direct current voltage passes through the pressure sensor, the resistor R28 is grounded, the resistor R26 is sampled and then is sent into the pin 7 of the module, the internal current flowing through the pressure sensor is changed under different pressures, the voltage of the pin 7 of the module is changed, the pin 2 of the module forms module output frequency adjustment through the W5 adjustable potentiometer and the resistor R24, the pins 1 and 6 of the module fix output pulse width through the C20, the R23 and the R25, the pin 3 outputs frequency signals, and when the pressure changes, the frequency changes.
The generator temperature detection module comprises a temperature sensor PT100, which is connected with the PLC.
Specifically, the resistor R10 and the temperature sensor R11 form a voltage dividing circuit, and when the temperature of the generator changes, the voltage at two ends of the R11 changes and is sent to the PLC.
The power module comprises a rectifier bridge, AC220V is changed into direct-current voltage through the rectifier bridge, filtered by a filter circuit composed of R5 and C4 and enters the input end of the isolation transmitter, and the output end of the isolation transmitter supplies power for the PLC.
Specifically, the alternating current 220V power supply is changed into direct current after passing through the rectifier bridge DT, and is filtered by C4, and R5 and R6 partial pressures are sent into the isolation transmitter to be output to the PLC.
The kilovolt control module comprises a time base integrated chip NE555 and an operational amplifier chip LM358; the alternating current AC220V power supply is sent into isolation optocouplers U1 and U2 after being subjected to voltage reduction by R14 and R15, and the models of U1 and U2 are TLP221; after optocoupler, the synchronous pulse of the isolated output power supply is sent to 3 pins of the LM358, the 2 pins of the LM358 adjust the pulse output waveform amplitude through a capacitor C6 and an adjustable resistor W1, the 1 pin of the LM358 outputs the waveform to 4 pins of the NE555 through a diode D7, the PLC signal V+ is buffered by a buffer circuit formed by an amplifier LM318A, resistors R7, R8, R9 and R16, and then a buffer signal is output, and the buffer signal is input to 6 pins and 7 pins of the NE 555; the 3-pin output pulse waveform of NE555 amplifies the impulse transformer T3 through triode Q1, outputs 2 paths of pulse isolation signals KDG2 and KDG1.
Specifically, after the ac220V power supply is reduced by R14 and R15, the voltage is fed into U1 and U2, the isolated output power supply synchronization pulse is fed into 3 pins of LM358, the pulse output waveform amplitude is adjusted by 2 pins through C6 and W2, the 1 pin outputs the waveform to 4 pins of NE555 through D7 diode, the 6 pin 7 pin of NE555 inputs the PLC signal buffered by LM358 and R16, R7, R8 and R9, the 3 pins of NE555 outputs the pulse waveform, the pulse transformer T1 is pushed by Q1 amplification, and the 2 paths of pulse isolated signals are output.
The thyristor driving module includes: two paths of signals are output by the PLC: one path of voltage signal YX and one path of pulse signal YP; the pulse signal is output through an isolation optocoupler U3, the output high-level signal is reversed through a triode Q2, and the triode Q3 is controlled to drive a pulse transformer T1 to isolate and output a pulse signal KDG4; the voltage signal is output through the isolation optocoupler U4, a pulse switching circuit formed by the isolation optocoupler U4 and the chip CD4011 is controlled through the resistor R38, the triode Q4 is controlled to work, the pulse transformer T2 is pushed, and the pulse signal KDG3 is isolated and output.
Specifically, the PLC outputs a path of voltage signal YX, a path of pulse signal YP, the pulse signal is output in an isolated way through U3 and U4, the pulse signal is amplified by Q3 to push a pulse transformer T1 to output the pulse signal in an isolated way, the voltage signal is sent to 6 pins of a CD4011, the diode Q4 is controlled to work, the pulse transformer T2 is pushed, and the pulse signal is output in an isolated way.
The main loop comprises a generator high-voltage package HT and an X-ray tube connected with an HT secondary side; alternating current AC220V is changed into adjustable direct current voltage through a rectifying circuit consisting of a controllable silicon KD1, a controllable silicon KD2, a diode D1 and a diode D2; (the silicon controlled rectifiers KD1 and KD2 are selected from SCR 40), the KD1 is connected with the KDG2 of the kilovolt control module, and the KD2 is connected with the KDG1 of the kilovolt control module; the direct-current voltage is filtered through an inductor T1 and a capacitor C1, the positive electrode is sent into a primary pin of a generator high-voltage package HT, the negative electrode is connected with a chopper circuit formed by thyristors KD4 and KD3 through a reversing inductor T2, the thyristors KD3 are connected with a KDG3 end of a thyristor driving circuit, the thyristors KD4 are connected with a KDG4 end of the thyristor driving circuit, when the thyristors KD3 receive KDG3 signals, the negative electrode is conducted, the primary voltage of the high-voltage package HT in the high-voltage generator is obtained, meanwhile, the voltage is induced by a T2 coil, the capacitor C3 is charged through a diode D4, the KDG3 signals are turned on, and simultaneously, the capacitor C3 voltage is discharged through the KD4 to provide the voltage required by turning off the thyristors KD 3; the secondary induced voltage of the high-voltage package HT provides the X-ray tube to work, and the secondary loop of the high-voltage package HT is connected in series with a resistor R4 and sends out a current signal through a current limiting resistor R3.
Specifically, the alternating current 220V is changed into adjustable direct current voltage through a rectifying circuit formed by KD1, KD2, D1 and D2, filtering is carried out through an inductor T1 and a capacitor C1, the positive pole is sent into a primary pin of a high-voltage package of a generator, the negative pole is connected with a main silicon cathode through a reversing inductor, when a silicon controlled rectifier receives a KDG3 signal, the positive pole and the negative pole are conducted, the primary of the high-voltage package in the high-voltage generator obtains voltage, meanwhile, the voltage is induced by a T2 coil, the capacitor C3 is charged through a diode D4, the KDG3 signal is turned on, the capacitor C3 voltage is discharged through the KD4, and the voltage required by turning off the silicon controlled rectifier KD3 is provided. The secondary induced voltage of the high voltage package provides the X-ray tube to work, and the secondary loop string resistor R4 sends out a current signal through the current limiting resistor R3.
The kilovolt detection module comprises an isolation transmitter II, and the primary voltage KV of the high-voltage package is input to a voltage dividing circuit consisting of resistors R12 and R13; the voltage dividing circuit is formed by connecting R12 and R13 in series, wherein one end of the voltage dividing circuit is grounded, and the other end of the voltage dividing circuit is connected with primary voltage KV; the isolation transmitter is a two-in two-out signal isolation transmitter, when the primary voltage of a high-voltage packet in the generator changes, the voltages at two ends of the resistor R13 change, and the voltages are sent into the PLC through the isolation transmitter II.
It should be understood that the foregoing detailed description of the present invention is provided for illustration only and is not limited to the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention may be modified or substituted for the same technical effects; as long as the use requirement is met, the invention is within the protection scope of the invention.
Claims (8)
1. A wireless integrated X-ray flaw detector is characterized in that: the intelligent control system comprises a controller and a generator, wherein the controller is a PDA, a PLC control system is adopted to control the generator through a touch screen, and the control system comprises a PLC, a generator pressure detection module, a generator temperature detection module, a power supply module, a kilovolt control module, a kilovolt detection module, a silicon controlled rectifier driving module and a main loop module; the PLC is respectively connected with the generator pressure detection module, the generator temperature detection module, the power supply module, the kilovolt control module, the kilovolt detection module, the silicon controlled drive module and the main loop module, and the main loop module is respectively connected with the kilovolt control module, the kilovolt detection module and the silicon controlled drive module;
the generator comprises a shell body which is composed of a cover plate I, a tube I, a device plate, a tube II, a tube III, a tube IV and a cover plate II which are sequentially and detachably connected; the upper part of the wall of the pipe barrel I is uniformly provided with through holes with uniform size, the through holes are used for heat dissipation, and a circuit control board, a power supply and a wireless transceiver are detachably connected in the pipe barrel I respectively; the circuit control board is used for controlling the centrifugal fan, the primary high-voltage package, the detection pressure sensor, the temperature relay and the X-ray tube current; the wireless transceiver is used for receiving and transmitting signals of the controller;
the lower end of the device board is detachably connected with a temperature relay and a high-voltage package through a clamping piece, the temperature relay and the high-voltage package are positioned in the tube II, and the high-voltage package is connected with an X-ray tube of an X-ray emission device through a U-shaped binding post;
the tube III is of a bowl-shaped structure, the bowl-shaped structure is used for accommodating and mounting an X-ray emitting device, a shielding cover II is detachably connected to the outer side of a cathode part of the X-ray emitting device, the upper end part of the shielding cover II is of an opening structure, a shielding cover I is arranged on an opening of the shielding cover II relatively, an anode part of the X-ray emitting device penetrates through the bowl bottom, and the anode part of the X-ray emitting device is positioned in the tube IV; the bottom of the bowl wall is respectively and electrically connected with the temperature sensor and the centrifugal fan through the wiring plate; the radiator is detachably connected to the outer side of the anode part of the X-ray emission device, and the radiator is covered on the outer side of the anode part; a plurality of groove groups are uniformly arranged on the outer side of the bowl wall, and the groove groups are used for radiating heat;
the radiator structure comprises a cylinder, one side of the cylinder is integrally connected with an X-ray emission port, a temperature sensor is detachably connected to the outer wall of the cylinder, the temperature sensor is opposite to the X-ray emission port, air pages are uniformly distributed on two sides of the temperature sensor and the X-ray emission port, the air pages are integrally structured with the cylinder, the distance between the air pages is 8-12mm, the positions of the air pages are opposite to a plurality of groove groups on the cylinder III, through holes matched with the X-ray emission port of the radiator are formed in the upper part of the cylinder wall of the cylinder IV, a plurality of through holes are formed in the lower part of the cylinder wall of the cylinder IV, the through holes are used for exhausting and radiating, a centrifugal fan is arranged below the cylinder IV, and the centrifugal fan is detachably mounted on the cover plate II; the fan blade of the centrifugal fan corresponds to the position of the through hole at the lower part of the tube IV;
the generator pressure detection module comprises a pressure sensor YL and a pressure-frequency conversion chip LM331, and the pressure sensor YL is arranged on the generator; the 8 pin of the voltage-frequency conversion chip LM331 is grounded after passing through a resistor R27 and a filter capacitor C22 in sequence, and the 5 pin of the LM331 is also grounded through the capacitor C22; the 7 feet of LM331 are split into two paths: one path is grounded through a capacitor C21, and the other path is connected with the negative electrode of the pressure sensor through a circuit R26; the 4 feet of the LM331 are grounded, after the 6 feet of the LM331 are connected with the 1 feet, the 6 feet are connected with one end of a resistor R23, the 1 feet are connected with one end of a capacitor C20, the other end of the resistor R23 is connected with the other end of the capacitor C20 and then is connected with one end of a resistor R25, and the other end of the resistor R25 is grounded; the 2 pin of the LM331 is connected with one end of a resistor R24 through an adjustable resistor W5, and the other end of the resistor R24 is grounded; the 3-pin of LM331 is connected to the PLC.
2. The wireless integrated X-ray inspection machine according to claim 1, wherein: the cover plate I and the cover plate II are round steel plates, the inner surfaces of the cover plate I and the cover plate II are of convex structures, and the outer sides of the cover plate I and the cover plate II are respectively detachably connected with the end ring I and the end ring II.
3. The wireless integrated X-ray inspection machine according to claim 2, wherein: the end ring I and the end ring II are integrally formed by rubber, the end ring I and the end ring II are curved annular, and one side of a curved surface of the curved annular is of a concave triangle structure.
4. A line integrated X-ray inspection machine according to claim 3, characterized in that: the inner side of the curved ring is uniformly divided into 3 cylindrical structures with through holes, and the height of each cylindrical structure is 1-2cm.
5. The wireless integrated X-ray inspection machine according to claim 1, wherein: the device board is provided with a first through hole, a second through hole and a third through hole; the first through hole is detachably connected with a seven-core column wiring board, the upper electric wire of the seven-core column wiring board is respectively and electrically connected with a circuit control board, a power supply and a wireless transceiver, and the lower electric wire is respectively and electrically connected with a high-voltage package and a four-core column wiring board; the second through hole is detachably connected with an inflating nozzle through a screw, and the inflating nozzle is used for inflating sulfur hexafluoride gas into the integral pipe barrel; the third through hole is detachably connected with a pressure sensor, and the pressure sensor is used for measuring sulfur hexafluoride gas pressure in the integral pipe barrel.
6. The wireless integrated X-ray inspection machine according to claim 1, wherein: the lower end face of the device plate is detachably connected with 2 clamping pieces with opposite positions through screws, the clamping pieces are positioned in the pipe barrel II, and one clamping piece is detachably connected with a temperature relay through screws; the iron core is fixedly connected between the 2 clamping pieces, the iron core penetrates through the high-voltage package to fix the high-voltage package between the 2 clamping pieces, the secondary of the high-voltage package is connected with an X-ray tube of the X-ray emitting device through a U-shaped binding post, the outer wall of the U-shaped binding post is detachably connected with a shielding cover I through a screw, and the lower end of the shielding cover I is of an opening structure.
7. The wireless integrated X-ray inspection machine according to claim 1, wherein: the novel air conditioner is characterized in that the groove group comprises two structures, the depth of the groove is 16mm, the width of the groove is 12mm, one of the grooves is a closed type hidden groove, the other groove is an upper open type groove, the groove group comprises a closed type groove and two upper open type grooves, the upper end face of the closed type groove is provided with a through hole matched with a screw for use, and the upper open type groove is used for air intake and ventilation.
8. The wireless integrated X-ray inspection machine according to claim 1, wherein: the wind page spacing is 10mm.
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| CN2364459Y (en) * | 1999-04-20 | 2000-02-16 | 王存忠 | X-ray detector |
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