CN112834537B - X-ray live detection method based on ground potential power transmission line - Google Patents
X-ray live detection method based on ground potential power transmission line Download PDFInfo
- Publication number
- CN112834537B CN112834537B CN202110129050.XA CN202110129050A CN112834537B CN 112834537 B CN112834537 B CN 112834537B CN 202110129050 A CN202110129050 A CN 202110129050A CN 112834537 B CN112834537 B CN 112834537B
- Authority
- CN
- China
- Prior art keywords
- transmission line
- detection device
- power transmission
- detection
- tower
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 165
- 230000005540 biological transmission Effects 0.000 title claims abstract description 98
- 230000007547 defect Effects 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 230000000007 visual effect Effects 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000003384 imaging method Methods 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000002788 crimping Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- G01N23/083—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 the radiation being X-rays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
- H04N7/185—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source from a mobile camera, e.g. for remote control
Abstract
An X-ray live detection method based on a ground potential power transmission line comprises the following steps: step ST100, personnel are in place; step ST200, installing accessories; step ST300, hanging the device; step ST400, defect detection: starting a detection device to shoot a region to be detected to obtain the defect condition of the power transmission line in the designated region; step ST500, line changing operation: lifting the detection device to separate from the currently detected power transmission line, adjusting the posture of the detection device by using a special insulation deflector rod by personnel on the tower, so that the power transmission line after line replacement which needs to be detected is subjected to repeating the step ST400 until the detection task is completed; step ST600, the apparatus is lowered down the tower. The detection device provided by the invention can be suitable for electrified visual detection of the multi-split transmission line, can ensure the definition and accuracy of imaging through the X-ray machine and the detector which are relatively fixedly arranged, does not need on-site debugging, and can obtain ideal imaging effect no matter what gesture.
Description
Technical Field
The invention relates to the technical field of transmission line detection, in particular to equipotential detection of a multi-split transmission line, and particularly relates to an X-ray live detection method of a transmission line based on ground potential.
Background
The overhead transmission line is the most important power equipment for realizing long-distance electric energy transmission and has the characteristics of high voltage and large current. In the running process of overhead transmission lines in China, the crimping type electric power fitting is not only required to bear all tension of a wire or a ground wire, but also has the effect of overcurrent, and the fitting is not dismounted once being mounted. But the phenomena of disconnection and the like often occur in the overhead transmission line to cause line accidents, and the operation safety of the transmission line is seriously affected. Most of post-processing analysis results in that the crimping operation of the strain clamp and the continuous pipe is not in accordance with relevant regulations, and moreover, when the circuit is in a heavy load operation condition, the strain clamp and the continuous pipe which are not in accordance with the crimping requirement easily cause the local heating temperature to be too high so as to damage the lead. Therefore, the crimping quality of the strain clamp seriously affects the safe operation of the transmission line.
In recent years, the X-ray digital imaging detection technology plays an important role in detecting defects of power transmission line hardware fittings, can rapidly and accurately detect various structural defects of the hardware fittings such as strain clamps, splicing sleeves, drainage plates, wires and the like, and is an important technical method for guaranteeing operation safety of power transmission networks. However, because the live working has high requirements on equipment and personnel, no mature X-ray live detection device and relevant working guidance exist in China at present. The X-ray detection of strain clamps is also commonly carried out on the level of power failure operation or equipotential operation of shielding clothes carried out by operators. The multi-split transmission wires are difficult to realize live detection all the time because the wire spacing is small, the drainage wire interference shooting is not complete, even the traditional detection device cannot be placed due to the influence of the multi-split wire spacing, the detection device cannot be compatible with the wires with the multi-specification spacing, and the like.
Thus, a strain clamp for multi-split transmission lines is developed: the detection device is visual in detection process, high in compatibility, good in avoidance, strong in operability, free of personnel online equipotential operation, and capable of achieving live detection, improving live working safety, improving detection efficiency, reducing power failure times, and has remarkable economic benefit and social value.
Disclosure of Invention
In order to solve the problems that the prior art is difficult to place, inconvenient to detect, incapable of being compatible with transmission lines of different specifications and the like in the defect detection process of the multi-split transmission line, the application provides a brand-new detection device which is used for replacing the existing multi-split transmission line fault detection, and particularly relates to an X-ray live detection method based on a ground potential transmission line based on the detection device. The invention can realize live operation without the need of operators to go on line to perform equipotential operation, reduces equipotential devices required by detection, and simultaneously avoids potential safety hazards caused by high-altitude operation of detection staff. Meanwhile, the state on the power transmission line is obtained through real-time communication of the background control terminal provided with the camera shooting unit and the ground, the detection angle can be adjusted according to actual needs, and personalized detection requirements can be met. Moreover, the invention is not limited by the specification of the transmission line through suspension type detection, can meet the defect detection of the multi-split and multi-type transmission line, and has good practicability and high compatibility.
In order to achieve the above purpose, the technical scheme adopted in the application is as follows:
an X-ray live detection method based on a ground potential power transmission line comprises the following steps:
step ST100, personnel are in place: the equipment installer gets on the tower and hangs the detection device on the tower;
step ST200, accessory installation: a lifting ring 16 which is used for lifting the detection device and slides along the ground wire 17 is buckled on the ground wire 17 by a tower installer, a lifting rope penetrates through the lifting ring 16 and one end of the lifting rope is firmly bound with the detection device, so that the detection device is in a horizontal state when the detection device is lifted by the lifting rope;
step ST300, device hanging wire: the ground personnel pulls the other free end of the lifting rope to lift the detection device, and the personnel on the tower adjust the posture of the detection device through a special insulation deflector rod, so that the power transmission line 18 to be detected is hung in the hook 9 of the detection device;
step ST400, defect detection: the personnel on the tower go out of the tower or exit the effective radiation range of the detection device, the ground operator controls the detection device to slide along the power transmission line 18 through the lifting rope until the detection device reaches a preset area to be detected, the detection device is communicated with the detection device through a ground control terminal, the detection device is started to shoot the area to be detected to obtain the defect condition of the power transmission line in the designated area until all the areas to be detected of the power transmission line are detected;
step ST500, line changing operation: the ground personnel lift the detection device off the currently detected power transmission line 18 by pulling the lifting rope, then the personnel on the tower adjust the posture of the detection device by using the special insulation deflector rod, so that the power transmission line 18 after line replacement which needs to be detected is subjected to repeating the step ST400 until the detection task is completed;
step ST600, the device is down in the tower: after stopping detecting, ground personnel suspend the detection device to the ground wire height, personnel on the tower retrieve detection device through special insulation driving lever, and the rethread lifting rope descends the tower, and finally personnel descend the tower, accomplishes whole detection.
In order to better realize the detection method and realize the expected technical effect, the detection device which is particularly suitable for the detection method comprises a U-shaped frame formed by bending double-layer aluminum pipes which are fixedly connected with each other, wherein an X-ray machine and a detector for receiving X-rays emitted by the X-ray machine and imaging are respectively and fixedly arranged at two ends of the U-shaped frame; the U-shaped frame is detachably and fixedly provided with two hooks at one end close to the detector, and the two hooks are symmetrically arranged at two sides of the detector respectively; the camera also comprises a camera unit with a visual field covering the detector, and the camera unit is electrically connected with a wireless communication module which is in communication connection with the background control terminal. The U-shaped frame plays a supporting role and is a stressed main body of the whole detection device, wherein the X-ray machine and the detector which are respectively arranged at two ends are oppositely arranged, so that the detector can well receive rays from the X-ray machine, and a power transmission line or an X-ray absorbed by a power transmission line fitting between the X-ray machine and the detector is well imaged on the detector to obtain an X-ray film of a detected power transmission line for analyzing defect conditions. During actual detection, the hooks are hung on a power transmission line to be detected, the hanging rings which are hung on the ground line at the top end of the iron tower in advance are matched with ropes which are bound on the U-shaped frame, and a ground operator exerts pulling force to flexibly adjust the position and the posture of the detection device, so that an X-ray film can be better obtained. The camera shooting unit can feed back the camera shooting picture to the background control terminal in real time so that ground operators can adaptively adjust the shooting posture, the communication mode of the camera shooting unit and the background control terminal adopts conventional wireless communication in the prior art, and the camera shooting unit is only used for assisting the ground operators in adjusting the detection device so as to solve the defect that the high altitude cannot be visually operated. Because the detection objects of the power transmission lines are relatively uniform, the U-shaped frame can be matched with the size of the U-shaped frame according to the output power of the X-ray machine so as to obtain the optimal interval matching between the X-ray machine and the detector, and the distance between the X-ray machine and the detector is always kept unchanged no matter what shooting gesture is, so that the preset optimal effect can be obtained. On the other hand, because the couple exists sufficient space that is used for holding many split lines with the top of U type frame, consequently, adopt the detection device that this application provided can satisfy the detection of current many split lines, do not receive the limitation of many split lines's arrangement mode and power transmission line model, detect the compatibility height.
Preferably, the U-shaped frame is provided with a first bending part close to the X-ray machine and a second bending part close to the detector, and a crescent plate for sliding contact with the power transmission line is fixedly arranged on the inner side of the second bending part. The crescent plate is used for protecting the U-shaped frame so as to prevent the strength from being reduced due to long-term sliding friction damage of the transmission line; meanwhile, the sliding range of the non-detection power transmission line can be effectively limited, and the stability of the detection device is further ensured.
In order to further improve convenience of ground operators for adjusting the posture and the position of the detection device, preferably, the crescent plate is provided with a plurality of universal ball units for reducing sliding friction with the power transmission line, and the distance between any two adjacent universal ball units is smaller than the minimum outer diameter of the power transmission line. The clearance between two adjacent universal ball units is less than the minimum external diameter of power transmission line and can effectually avoid detection device to appear the phenomenon of jamming to take place in the slip in-process on the power transmission line, guarantees all the time that the power transmission line only contacts with universal ball unit upper surface to improve detection device's flexibility.
Further preferably, the universal ball unit includes a ball seat detachably and fixedly installed inside the crescent through the crescent, and a ball rollably installed inside the ball seat. Any ball can freely rotate in the ball seat, so that the transmission line can only contact with the ball all the time, the effective contact area is greatly reduced, and meanwhile, the friction resistance can be further reduced by the free rotation of the ball, and the smooth sliding of the detection device on the transmission line is realized.
Further, the inner side wall of the hook is also provided with a plurality of universal ball units.
In order to prevent the X-ray machine from being disturbed as much as possible, preferably, the free end of the U-shaped frame, which is close to one side of the first bending part, is bent outwards perpendicularly and extends along the plane where the U-shaped frame is located to form a supporting structure for installing the X-ray machine, an installing table is detachably and fixedly installed on the supporting structure, a shielding protection frame is installed on the installing table, and a space formed between the shielding protection frame and the installing table is used for installing the X-ray machine.
Preferably, the free end of one side of the U-shaped frame, which is close to the second bending part, is vertically bent and extends along the vertical direction of the plane where the U-shaped frame is located to form two symmetrically arranged mounting parts, and the free end of the mounting part is provided with a mounting seat for connecting and fixing the hook.
Further preferable structure sets up, the detector overcoat is equipped with shielding protective housing, shielding protective housing is close to one side of U type frame is fixed to be provided with two at least and is used for the joint the mounting groove of installation department. The double-layer aluminum pipe that U type frame adopted is through many connecting rods fixed connection, the length of connecting rod with the width of X ray machine suits.
Advantageous effects
The detection device provided by the invention can be suitable for electrified visual detection of the multi-split transmission line, can ensure the definition and accuracy of imaging through the X-ray machine and the detector which are relatively fixedly arranged, does not need on-site debugging, and can obtain ideal imaging effect no matter what gesture.
The invention adopts hook type detection, can control the position and the gesture to be detected through the ground, and can know the detection condition in real time through the camera unit, thereby achieving the effect of ground operation and visual detection; arc injury and falling hidden trouble caused by equipotential high-altitude operation are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is an isometric view of the structure of the present invention;
FIG. 2 is an enlarged view of the structure of area A in FIG. 1;
FIG. 3 is another visual isometric view of FIG. 1;
fig. 4 is a front view of fig. 1;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic view of the present invention in use;
FIG. 7 is a schematic diagram of an adjustment detection device employing dual lifting ropes;
FIG. 8 is a schematic illustration of a single hoist rope adjustment detection device performing a wire change;
FIG. 9 is a schematic diagram of an adjustment detection device;
fig. 10 is a schematic diagram of the hoist rope tying operation mode use in example 2.
In the figure: 1-X-ray machine; 2-a mounting table; 3-shielding protective frame; 4-U-shaped frames; 5-a crescent plate; 6-a universal ball unit; 7-shielding protective shell; 8-a detector; 9, hooking; 10-mounting grooves; 11-a mounting base; 12-a mounting part; 13-connecting rods; 14-a first bend; 15-a second bend; 16-hanging rings; 17-ground wire; 18-power transmission lines; 61-ball seat; 62-balls.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, if the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship that a product of the application conventionally puts in use, it is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.
Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Example 1:
the method for detecting the X-ray electrification of the transmission line based on the ground potential is shown in the accompanying figures 6-9 in combination with the specification, and comprises the following steps:
step ST100, personnel are in place: the equipment installer gets on the tower and hangs the detection device on the tower;
step ST200, accessory installation: a lifting ring 16 which is used for lifting the detection device and slides along the ground wire 17 is buckled on the ground wire 17 by a tower installer, a lifting rope penetrates through the lifting ring 16 and one end of the lifting rope is firmly bound with the detection device, so that the detection device is in a horizontal state when the detection device is lifted by the lifting rope;
step ST300, device hanging wire: the ground personnel pulls the other free end of the lifting rope to lift the detection device, and the personnel on the tower adjust the posture of the detection device through a special insulation deflector rod, so that the power transmission line 18 to be detected is hung in the hook 9 of the detection device;
step ST400, defect detection: the personnel on the tower go out of the tower or exit the effective radiation range of the detection device, the ground operator controls the detection device to slide along the power transmission line 18 through the lifting rope until the detection device reaches a preset area to be detected, the detection device is communicated with the detection device through a ground control terminal, the detection device is started to shoot the area to be detected to obtain the defect condition of the power transmission line in the designated area until all the areas to be detected of the power transmission line are detected;
step ST500, line changing operation: the ground personnel lift the detection device off the currently detected power transmission line 18 by pulling the lifting rope, then the personnel on the tower adjust the posture of the detection device by using the special insulation deflector rod, so that the power transmission line 18 after line replacement which needs to be detected is subjected to repeating the step ST400 until the detection task is completed;
step ST600, the device is down in the tower: after stopping detecting, ground personnel suspend the detection device to the ground wire height, personnel on the tower retrieve detection device through special insulation driving lever, and the rethread lifting rope descends the tower, and finally personnel descend the tower, accomplishes whole detection.
The beneficial effects are that:
the detection method provided by the embodiment is suitable for detecting the multi-split power transmission line, and is not limited by the type and layout mode of the power transmission line. Ground potential is adopted for ground detection, so that a complex equipotential protection device required by equipotential detection is avoided, equipment arrangement work before and after detection is greatly reduced, and potential safety hazards to personnel in the detection process are greatly reduced.
Example 2:
the X-ray live detection method based on the ground potential transmission line is mainly realized by a unique detection device, and the detection device specifically comprises a U-shaped frame 4 formed by bending double-layer aluminum pipes fixedly connected with each other, wherein an X-ray machine 1 and a detector 8 for receiving X-rays emitted by the X-ray machine 1 and imaging are respectively and fixedly arranged at two ends of the U-shaped frame 4; the U-shaped frame 4 is detachably and fixedly provided with two hooks 9 at one end close to the detector 8, and the two hooks 9 are symmetrically arranged at two sides of the detector 8 respectively; the camera also comprises an image pick-up unit with a visual field covering the detector 8, and the image pick-up unit is electrically connected with a wireless communication module which is in communication connection with the background control terminal. The U-shaped frame 4 plays a supporting role and is a stressed main body of the whole detection device, wherein the X-ray machine 1 and the detector 8 which are respectively arranged at two ends are oppositely arranged, so that the detector 8 can well receive rays from the X-ray machine 1, and a power transmission line or an X-ray absorbed by a power transmission line fitting between the X-ray machine 1 and the detector 8 is well imaged on the detector 8 to obtain an X-ray film of a detected power transmission line for analyzing defect conditions. During actual detection, the hanging hooks 9 are hung on a power transmission line to be detected, the hanging rings which are hung on the ground line at the top end of the iron tower in advance are matched with ropes bound on the U-shaped frame 4, and a ground operator applies tension to flexibly adjust the position and the posture of the detection device, so that an X-ray film can be better obtained. The camera shooting unit can feed back the camera shooting picture to the background control terminal in real time so that ground operators can adaptively adjust the shooting posture, the communication mode of the camera shooting unit and the background control terminal adopts conventional wireless communication in the prior art, and the camera shooting unit is only used for assisting the ground operators in adjusting the detection device so as to solve the defect that the high altitude cannot be visually operated. Because the detection objects of the power transmission lines are relatively uniform, the U-shaped frame 4 can be matched with the size of the U-shaped frame 4 according to the output power of the X-ray machine 1 so as to obtain the optimal interval matching between the X-ray machine 1 and the detector 8, and the distance between the X-ray machine 1 and the detector 8 is always unchanged no matter what shooting gesture is, so that the preset optimal effect can be obtained. On the other hand, based on the couple 9 and the top of U type frame 4 exist sufficient space that is used for holding many split lines, consequently, adopt the detection device that this application provided can satisfy the detection of current many split lines, do not receive the limitation of many split lines's arrangement mode and power transmission line model, detect the compatibility height.
The operation method comprises the following steps:
step one: firstly, the detection device is manually conveyed to the iron tower through a lifting rope;
step two: the device is used for assisting in adjusting the position of the detection device, is convenient for ground operators to use hanging rings operated by hanging ropes or can realize that the device similar to a fixed pulley is hung on the ground wire at the top end of the iron tower in advance. And the function is to provide tension support to facilitate the subsequent adjustment of the position and posture of the detection device.
Step three: passing at least one lifting rope through the lifting ring or other fixed pulley-like devices by personnel on the tower and tightly tying one end at the balance point of the U-shaped frame 4 of the detection device; the other point freely falls on the ground for the ground operator to pull. In this embodiment, two independent lifting ropes are adopted, one free end of the two independent lifting ropes tightens one side of the U-shaped frame 4 close to the detector 8, the other free end of the two independent lifting ropes tightens one side of the U-shaped frame 4 close to the X-ray machine 1, the two lifting ropes penetrate through the lifting rings, and two independent operators or one operator can respectively control the two hands, so that posture adjustment of the detection device in detection operation is realized.
Step four: the personnel on the tower utilize specialized tool to hang detection device's couple 9 on the transmission line that is detected, then slide detection device to appointed detection area along the transmission line through ground lifting rope control personnel, reach visual operation effect through the camera unit, according to actual conditions, carry out X ray detection through ground control terminal. It should be noted that the communication control established between the ground control terminal and the X-ray machine 1 belongs to the prior art, and of course, the wired control matched with the X-ray machine 1 can also be adopted, and the control line can be fixed with the lifting rope, but the wired mode is relatively complicated, and the wireless control mode is preferably adopted. The present embodiment is mainly improved in the structure of the detecting device itself, and involves the control portion all adopting the existing technology.
After the detection of one transmission line is finished, the detection device is lifted through the lifting rope and separated from the original transmission line, and then the personnel on the tower can not change the position of the transmission line through the lifting rope by utilizing a special deflector rod tool and stripping the transmission line, so that the hook 9 is hung on the transmission line to be detected to perform the action, and the detection is repeated until the detection work is completely cut off.
In this embodiment, further referring to fig. 10 of the specification, on the basis of the above description, the present embodiment further provides another operation mode, and uses a single short lifting rope to reliably bind two ends of the C-shaped frame 4, and then uses a lifting rope penetrating through the lifting ring to bind at a balance point of the short lifting rope for lifting the C-shaped frame 4; meanwhile, the third lifting rope is directly bound on the C-shaped frame 4 on the premise of not penetrating through the lifting ring, and the operation of wire collision, winding and the like is avoided through the operation of ground personnel. As particularly shown in fig. 10. The difference in the scheme is that the binding forms and parts are different, and the personnel and modes required to operate are different, so that the equivalent technical effect can be achieved.
Example 3:
in order to further refine the structure of the detection device of the present application, on the basis of embodiment 1, as further combined with fig. 1-5 of the specification, the U-shaped frame 4 has a first bending portion 14 near the X-ray machine 1 and a second bending portion 15 near the detector 8, and a crescent plate 5 for sliding contact with the power line is fixedly installed on the inner side of the second bending portion 15. The crescent 5 is used for protecting the U-shaped frame 4 so as to prevent the strength from being reduced due to long-term sliding friction damage of the transmission line; meanwhile, the sliding range of the non-detection power transmission line can be effectively limited, and the stability of the detection device is further ensured.
In order to further improve the convenience of the ground operator for adjusting the posture and the position of the detection device, preferably, the crescent plate 5 is provided with a plurality of universal ball units 6 for reducing sliding friction with the power transmission line, and the distance between any two adjacent universal ball units 6 is smaller than the minimum outer diameter of the power transmission line. The clearance between two adjacent universal ball units 6 is less than the minimum external diameter of power transmission line and can effectually avoid detection device to appear the phenomenon of jamming to take place in the slip in-process on the power transmission line, guarantees all the time that the power transmission line only contacts with universal ball unit 6 upper surface to improve detection device's flexibility.
In this embodiment, the universal ball unit 6 includes a ball seat 61 detachably and fixedly installed on the inner side of the crescent 5 through the crescent 5, and a ball 62 rollably installed in the ball seat 61. Any ball 62 can freely rotate in the ball seat 61, so that the power transmission line can only contact with the ball 62 all the time, the effective contact area is greatly reduced, and meanwhile, the friction resistance can be further reduced by the free rotation of the ball 62, so that the smooth sliding of the detection device on the power transmission line is realized. The inner side wall of the hook 9 is also provided with a plurality of the universal ball units 6.
In order to prevent the X-ray machine 1 from being disturbed as much as possible, preferably, the free end of the side of the U-shaped frame 4, which is close to the first bending portion 14, is bent perpendicularly and outwards, and extends along the plane where the U-shaped frame 4 is located to form a supporting structure for mounting the X-ray machine 1, the mounting table 2 is detachably and fixedly mounted on the supporting structure, the shielding protection frame 3 is mounted on the mounting table 2, and a space formed between the shielding protection frame 3 and the mounting table 2 is used for mounting the X-ray machine 2.
In this embodiment, the free end of the side of the U-shaped frame 4 near the second bending portion 15 is vertically bent and extends along the vertical direction of the plane where the U-shaped frame 4 is located to form two symmetrically arranged mounting portions 12, and the free end of the mounting portion 12 is provided with a mounting seat 11 for connecting and fixing the hook 9.
Further preferable structure arrangement, the detector 8 overcoat is equipped with shielding protective housing 7, shielding protective housing 7 is close to the fixed two at least installation slot 10 that are used for the joint of one side of U type frame 4 are provided with of installation department 12. The double-layer aluminum pipe adopted by the U-shaped frame 4 is fixedly connected through a plurality of connecting rods 13, and the length of each connecting rod 13 is matched with the width of the X-ray machine 1.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (5)
1. The X-ray live detection method based on the ground potential power transmission line is characterized by comprising the following steps of: the method comprises the following steps:
step ST100, personnel are in place: the equipment installer gets on the tower and hangs the detection device on the tower;
step ST200, accessory installation: a lifting ring (16) used for lifting the detection device and sliding along the ground wire (17) is buckled on the ground wire (17) by a tower installer, a lifting rope penetrates through the lifting ring (16) and one end of the lifting rope is firmly bound with the detection device, and when the detection device is lifted by the lifting rope, the detection device is in a horizontal state;
step ST300, device hanging wire: the ground personnel pulls the other free end of the lifting rope to lift the detection device, and the personnel on the tower adjust the posture of the detection device through a special insulation deflector rod, so that a power transmission line (18) to be detected is hung in a hook (9) of the detection device;
step ST400, defect detection: a person on the tower goes down the tower or exits from the effective radiation range of the detection device, a ground operator controls the detection device to slide along the power transmission line (18) through a lifting rope until the detection device reaches a preset area to be detected, communicates with the detection device through a ground control terminal, and starts the detection device to shoot the area to be detected to obtain the defect condition of the power transmission line in the designated area until all the areas to be detected of the power transmission line are detected;
step ST500, line changing operation: the ground personnel lift the detection device off the currently detected power transmission line (18) by pulling the lifting rope, then the personnel on the tower adjust the posture of the detection device by utilizing the special insulation deflector rod, so that the power transmission line (18) after line replacement which needs to be detected is subjected to the detection, and the step ST400 is repeated until the detection task is completed;
step ST600, the device is down in the tower: after stopping detection, suspending the detection device to the ground level by ground personnel, recovering the detection device by personnel on the tower through a special insulation deflector rod, then lowering the tower through a lifting rope, and finally lowering the tower by personnel to finish the whole detection; the detection device in the steps ST 100-ST 600 comprises a U-shaped frame (4) formed by bending double-layer aluminum pipes fixedly connected with each other, wherein an X-ray machine (1) and a detector (8) for receiving X-rays emitted by the X-ray machine (1) and forming images are respectively and fixedly arranged at two ends of the U-shaped frame (4); one end of the U-shaped frame (4) close to the detector (8) is also detachably and fixedly provided with two hooks (9), and the two hooks (9) are symmetrically arranged on two sides of the detector (8) respectively; the camera also comprises a camera unit with a visual field covering the detector (8), and the camera unit is electrically connected with a wireless communication module which is in communication connection with the background control terminal; the U-shaped frame (4) is provided with a first bending part (14) close to the X-ray machine (1) and a second bending part (15) close to the detector (8), and a crescent plate (5) used for sliding contact with a power transmission line is fixedly arranged on the inner side of the second bending part (15); the crescent plate (5) is provided with a plurality of universal ball units (6) for reducing sliding friction with the power transmission line, and the distance between any two adjacent universal ball units (6) is smaller than the minimum outer diameter of the power transmission line.
2. The ground potential transmission line-based X-ray live detection method as claimed in claim 1, wherein the method comprises the following steps of: the universal ball unit (6) comprises a ball seat (61) penetrating through the crescent plate (5) and detachably and fixedly arranged on the inner side of the crescent plate (5), and a ball (62) arranged in the ball seat (61) in a rolling manner; the inner side wall of the hook (9) is also provided with a plurality of universal ball units (6).
3. The ground potential transmission line-based X-ray live detection method as claimed in claim 2, wherein: the free end of U type frame (4) is close to first kink (14) one side is outwards buckled perpendicularly and is extended along the plane that U type frame (4) is located and form and be used for installing bearing structure of X ray machine (1), bearing structure is last to dismantle fixed mounting has mount table (2), install shielding fender bracket (3) on mount table (2), the space that forms between shielding fender bracket (3) and mount table (2) is used for installing X ray machine (2).
4. A ground potential transmission line-based X-ray live detection method according to claim 3, wherein: the free end of one side of the U-shaped frame (4) close to the second bending part (15) is vertically bent and extends along the vertical direction of the plane where the U-shaped frame (4) is located to form two symmetrically arranged mounting parts (12), and the free end of the mounting part (12) is provided with a mounting seat (11) for connecting and fixing the hook (9).
5. The ground potential transmission line-based X-ray live detection method as claimed in claim 4, wherein the method comprises the following steps: the detector (8) is sleeved with a shielding protective shell (7), and one side, close to the U-shaped frame (4), of the shielding protective shell (7) is fixedly provided with at least two mounting grooves (10) for clamping the mounting parts (12); the double-layer aluminum pipe adopted by the U-shaped frame (4) is fixedly connected through a plurality of connecting rods (13), and the length of each connecting rod (13) is matched with the width of the X-ray machine (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110129050.XA CN112834537B (en) | 2021-01-29 | 2021-01-29 | X-ray live detection method based on ground potential power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110129050.XA CN112834537B (en) | 2021-01-29 | 2021-01-29 | X-ray live detection method based on ground potential power transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112834537A CN112834537A (en) | 2021-05-25 |
| CN112834537B true CN112834537B (en) | 2024-03-22 |
Family
ID=75931103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110129050.XA Active CN112834537B (en) | 2021-01-29 | 2021-01-29 | X-ray live detection method based on ground potential power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112834537B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1017277A (en) * | 1996-06-28 | 1998-01-20 | Hitachi Constr Mach Co Ltd | Safety device of tower crane |
| JP2000133491A (en) * | 1998-10-30 | 2000-05-12 | Shimadzu Corp | X-ray photo-timer detector |
| CN1633606A (en) * | 2000-09-20 | 2005-06-29 | 爱克斯康特公司 | Adaptable energy-resolved detection of ionizing radiation |
| JP2008241313A (en) * | 2007-03-26 | 2008-10-09 | Fujitsu Ltd | X-ray absorbing analyzing detector |
| CN201134645Y (en) * | 2007-11-09 | 2008-10-15 | 湖州电力局 | Foreign matter treatment device for conductive and ground wire of high-voltage line |
| CN101290352A (en) * | 2008-06-13 | 2008-10-22 | 清华大学 | Counting type linear array imaging detector based on gas electron multiplier |
| KR101131604B1 (en) * | 2010-10-12 | 2012-03-30 | 지에스건설 주식회사 | Power transmission line inspection system and inspection method |
| KR101167081B1 (en) * | 2012-02-27 | 2012-07-20 | (주) 주암전기통신 | Apparatus for detecting cable damages of power transmission line |
| CN103500964A (en) * | 2013-09-26 | 2014-01-08 | 国家电网公司 | Method of live-wire replacement of overhead ground wire |
| JP2014193078A (en) * | 2013-03-28 | 2014-10-06 | Kanden Engineering Corp | Sheave device and overhead ground wire rebuilding method |
| CN104638565A (en) * | 2015-01-30 | 2015-05-20 | 国家电网公司 | Method for performing equipotential live line work by putting +/-800kV tangent tower electric transmission line into electric field |
| CN107425475A (en) * | 2017-09-13 | 2017-12-01 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of overhead earth wire lifter and its lifting installation method |
| CN107607983A (en) * | 2017-09-18 | 2018-01-19 | 中国科学院电子学研究所 | Radiation ray detector and preparation method thereof |
| CN108321720A (en) * | 2018-01-30 | 2018-07-24 | 中国电力科学研究院有限公司 | A kind of device and method for preventing earth lead from burning |
| CN110412059A (en) * | 2019-08-30 | 2019-11-05 | 国网湖南省电力有限公司 | A kind of transmission line hardware electrification radiation detection device and its application method |
| CN211528251U (en) * | 2020-01-19 | 2020-09-18 | 四川赛康智能科技股份有限公司 | Equipotential charged X-ray detection device of overhead line hardware fitting |
-
2021
- 2021-01-29 CN CN202110129050.XA patent/CN112834537B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1017277A (en) * | 1996-06-28 | 1998-01-20 | Hitachi Constr Mach Co Ltd | Safety device of tower crane |
| JP2000133491A (en) * | 1998-10-30 | 2000-05-12 | Shimadzu Corp | X-ray photo-timer detector |
| CN1633606A (en) * | 2000-09-20 | 2005-06-29 | 爱克斯康特公司 | Adaptable energy-resolved detection of ionizing radiation |
| JP2008241313A (en) * | 2007-03-26 | 2008-10-09 | Fujitsu Ltd | X-ray absorbing analyzing detector |
| CN201134645Y (en) * | 2007-11-09 | 2008-10-15 | 湖州电力局 | Foreign matter treatment device for conductive and ground wire of high-voltage line |
| CN101290352A (en) * | 2008-06-13 | 2008-10-22 | 清华大学 | Counting type linear array imaging detector based on gas electron multiplier |
| KR101131604B1 (en) * | 2010-10-12 | 2012-03-30 | 지에스건설 주식회사 | Power transmission line inspection system and inspection method |
| KR101167081B1 (en) * | 2012-02-27 | 2012-07-20 | (주) 주암전기통신 | Apparatus for detecting cable damages of power transmission line |
| JP2014193078A (en) * | 2013-03-28 | 2014-10-06 | Kanden Engineering Corp | Sheave device and overhead ground wire rebuilding method |
| CN103500964A (en) * | 2013-09-26 | 2014-01-08 | 国家电网公司 | Method of live-wire replacement of overhead ground wire |
| CN104638565A (en) * | 2015-01-30 | 2015-05-20 | 国家电网公司 | Method for performing equipotential live line work by putting +/-800kV tangent tower electric transmission line into electric field |
| CN107425475A (en) * | 2017-09-13 | 2017-12-01 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of overhead earth wire lifter and its lifting installation method |
| CN107607983A (en) * | 2017-09-18 | 2018-01-19 | 中国科学院电子学研究所 | Radiation ray detector and preparation method thereof |
| CN108321720A (en) * | 2018-01-30 | 2018-07-24 | 中国电力科学研究院有限公司 | A kind of device and method for preventing earth lead from burning |
| CN110412059A (en) * | 2019-08-30 | 2019-11-05 | 国网湖南省电力有限公司 | A kind of transmission line hardware electrification radiation detection device and its application method |
| CN211528251U (en) * | 2020-01-19 | 2020-09-18 | 四川赛康智能科技股份有限公司 | Equipotential charged X-ray detection device of overhead line hardware fitting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112834537A (en) | 2021-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112285132B (en) | Live-line online detection system for power transmission line hardware | |
| CN112945990B (en) | Electrified visual X-ray detection device for multi-split transmission line | |
| CN210271919U (en) | Low-smoke halogen-free flame-retardant control cable processing and fixing device | |
| CN112834537B (en) | X-ray live detection method based on ground potential power transmission line | |
| CN101745191A (en) | Movable type falling protection device for cement pole operation | |
| CN207765888U (en) | A kind of power equipment cord holder | |
| CN201717173U (en) | 220KV vertically-opened disconnecting switch shunt device | |
| CN106129895A (en) | Portable power electrical network overhead line construction overhaul protective device | |
| CN210487647U (en) | A device for crimping type strain clamp X-ray detection | |
| CN209259357U (en) | A kind of power construction cable mobile fixture | |
| CN217334857U (en) | Threading construction device for building electrical engineering | |
| CN207740706U (en) | A kind of mounting bracket for portable CR detection devices | |
| CN110137872A (en) | A kind of building monitoring wiring unit | |
| CN113884743B (en) | Current detection clamp for current detection of overhead high-voltage cable line | |
| CN217766157U (en) | X-ray detection device for extra-high voltage line helicopter live-line detection | |
| CN111193120A (en) | Device for hanging detachable head of grounding wire to high-altitude cable | |
| JPH11355928A (en) | Drawing method for electric wire | |
| CN110844717A (en) | Cable winding and unwinding devices that protecting effect is good | |
| CN113824048B (en) | Insulating cross arm device and using method | |
| CN215768323U (en) | Portable digital ray DR strain resistance wire clamp detects frock | |
| CN216085382U (en) | Telescopic grounding wire rod with visual image retransmission function | |
| CN220585897U (en) | Perpendicular pole setting convenient to solar energy system circuit installation | |
| CN114252464A (en) | Equipotential charged X-ray detection method for overhead line hardware | |
| CN218037669U (en) | Projection display equipment protection device | |
| CN217879481U (en) | Ultrahigh voltage power transmission fault maintenance device with sectional type detection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |