CN112834537A - 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
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Abstract
An X-ray live detection method based on a ground potential power transmission line comprises the following steps: step ST100, the personnel are in place; step ST200, installing accessories; step ST300, hanging the device; step ST400, defect detection: starting a detection device to shoot the area to be detected to obtain the defect condition of the power transmission line in the designated area; step ST500, a line change operation: hoisting the detection device to separate from the currently detected power transmission line, adjusting the posture of the detection device by using a special insulating deflector rod by personnel on the tower to enable the power transmission line to be detected after line replacement, and repeating the step ST400 until the detection task is completed; and step ST600, descending the device. The detection device provided by the invention can adapt to the electrified visual detection of the multi-split power transmission line, the imaging definition and accuracy can be ensured through the X-ray machine and the detector which are relatively fixedly arranged, the field debugging is not needed, and an ideal imaging effect can be obtained no matter what posture is.
Description
Technical Field
The invention relates to the technical field of power transmission line detection, in particular to equipotential detection of a multi-split power transmission line, and particularly relates to an X-ray live detection method based on a ground potential power transmission line.
Background
The overhead transmission line is the most important power equipment for realizing the long-distance transmission of electric energy and has the characteristics of high voltage and large current. In the operation process of overhead transmission lines in China, the crimping type electric power fitting bears all tension of a conducting wire or a ground wire, and meanwhile, the conductor plays an overcurrent role, and the fitting is not detached any more once being installed. However, 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 influenced. Most of the post-processing analysis results are caused by the fact that the operation of crimping the strain clamp and the continuous tube is not in accordance with relevant regulations, and moreover, when the line is in a heavy-load operation condition, the strain clamp and the continuous tube which are not in accordance with the crimping are easy to cause over-high local heating temperature to damage the lead. Therefore, the crimping quality of the strain clamp seriously affects the safe operation of the power transmission line.
In recent years, an X-ray digital imaging detection technology plays an important role in detecting defects of electric transmission line hardware, can quickly and accurately detect various structural defects of hardware such as a strain clamp, a splicing sleeve, a drainage plate, a lead and the like, and is an important technical method for guaranteeing the operation safety of a power transmission network. However, due to the high requirements of live working on equipment and personnel, no mature X-ray live detection device and relevant operation guidance exist in China at present. The X-ray detection of the strain clamp is also commonly stopped on the layer of the equipotential operation of power failure operation or operation personnel carrying a shielding clothes. The multi-bundle power transmission conductor is difficult to realize live detection due to the technical difficulties that the distance between the conductors is small, the interference of a drainage wire on shooting is incomplete, even the influence of the distance between the multi-bundle conductors received by a traditional detection device cannot be placed, the detection device cannot be compatible with the multi-specification distance conductors and the like.
Therefore, the method for developing the X-ray of the strain clamp of the multi-split power transmission line comprises the following steps: the visual detection device has the advantages of visual detection process, high compatibility of the detection device, good avoidance, strong operability and no need of on-line equipotential operation of personnel, is used for realizing live detection, can improve the safety of live operation, improve the detection efficiency, reduce the power failure times and has obvious economic benefit and social value.
Disclosure of Invention
In order to solve the problems of difficult placement, inconvenient detection, incapability of being compatible with power transmission lines of different specifications and the like in the multi-split power transmission line defect detection process in the prior art, the application provides a brand-new detection device for replacing the existing multi-split power transmission line fault detection, and particularly provides an X-ray live detection method based on a ground potential power transmission line based on the detection device. The invention can realize live operation, does not need operators to carry out equipotential operation on line, reduces equipotential devices required by detection and simultaneously avoids potential safety hazards caused by high-altitude operation of the detectors. Meanwhile, the state on the power transmission line is obtained through real-time communication between the camera unit and the ground background control terminal, the detection angle can be adjusted according to actual needs, and personalized detection requirements can be met. Moreover, the invention is free from the limitation of the specification of the power transmission line through suspension type detection, can meet the defect detection of multi-split and multi-model power transmission lines, and has good practicability and high compatibility.
In order to achieve the purpose, the technical scheme adopted by 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 in place: the equipment installer goes up the tower and hoists the detection device to the tower;
step ST200, accessory installation: an installer on the tower buckles the lifting ring 16 which is used for lifting the detection device and slides along the ground wire 17 on the ground wire 17, penetrates the lifting rope through the lifting ring 16 and firmly binds one end of the lifting rope 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, the device hangs up: ground personnel lift the detection device by pulling the other free end of the lifting rope, and installation personnel on the tower adjust the posture of the detection device through a special insulating 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: when a person on the tower gets off the tower or leaves 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 detection area, communicates with the detection device through a ground control terminal, starts the detection device to shoot the detection area to obtain the defect condition of the power transmission line in the specified area until all detection areas of the power transmission line are detected;
step ST500, a line change operation: the ground personnel lift the detection device to be separated from the currently detected power transmission line 18 by pulling the lifting rope, then utilize the special insulating deflector rod to adjust the posture of the detection device by the personnel on the tower, so that the power transmission line 18 which needs to be detected and is subjected to line replacement is subjected to the detection, and the step ST400 is repeated until the detection task is completed;
step ST600, the apparatus is set up as follows: after the detection is stopped, ground personnel suspend the detection device to the height of the ground wire in a hanging mode, personnel on the tower recover the detection device through the special insulating deflector rod, then go down the tower through the lifting rope, and finally go down the tower to complete the 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 is provided, and specifically 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 fixedly arranged at two ends of the U-shaped frame respectively; one end of the U-shaped frame, which is close to the detector, can also be detachably and fixedly provided with two hooks, and the two hooks are respectively and symmetrically arranged on two sides of the detector; the camera shooting device is characterized by further comprising a camera shooting unit, wherein the camera shooting unit covers the detector in a visual field, and is electrically connected with a wireless communication module 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 X-rays absorbed by a power transmission line or a power transmission line fitting between the X-ray machine and the detector are well imaged on the detector, so that an X-ray film of the detected power transmission line is obtained and is used for analyzing the defect condition. During actual detection, the hook is hung on a power transmission line to be detected, a hanging ring hung on a ground wire at the top end of an iron tower in advance is matched with a rope bound on the U-shaped frame, and a ground operator applies 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 shooting unit can feed back a shooting picture to the background control terminal in real time so that ground operators can adjust shooting postures adaptively, the communication mode of the shooting unit and the background control terminal is conventional wireless communication in the prior art, and the shooting unit and the background control terminal are only used for assisting the ground operators in adjusting the detection device so as to overcome the defect that the ground operators cannot operate visually at high altitude. 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 distance matching between the X-ray machine and the detector, the distance between the X-ray machine and the detector is always kept unchanged no matter what shooting posture is, and the preset optimal effect can be obtained. On the other hand, there is sufficient space that is used for holding many split lines based on the top of couple and U type frame, consequently, adopts the detection device that this application provided to can satisfy the detection of current many split lines, does not receive the limitation of the arrangement of many split lines and power transmission line model, detects the compatibility height.
Preferably, the U-shaped frame has 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 mounted on the inner side of the second bending part. The crescent plate is used for protecting the U-shaped frame so as to avoid the reduction of strength caused by long-term sliding friction damage of the power 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 ground operating personnel to detection device gesture and position adjustment, preferably, install a plurality of universal ball units that are used for reducing with the power transmission line sliding friction on the crescent moon board, the distance between any two adjacent said universal ball units is less than the minimum external diameter of 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 slide the phenomenon emergence of the in-process jamming that appears on the power transmission line, guarantees the power transmission line all the time only with universal ball unit upper surface contact to improve detection device's flexibility.
Further preferably, the universal ball unit comprises a ball seat penetrating through the crescent plate and detachably and fixedly installed on the inner side of the crescent plate, and a ball arranged in the ball seat in a rolling mode. Any ball can both freely rotate in the ball seat to make the power transmission line can only contact with the ball all the time, effective area of contact reduces greatly, and the free rotation of ball can further reduce frictional resistance simultaneously, thereby realizes that detection device slides smoothly on the power transmission line.
Further, a plurality of the ball transfer units are also installed on the inner side wall of the hook.
In order to enable the X-ray machine not to be interfered as far as possible, preferably, the U-shaped frame is close to the free end on one side of the first bending part and is perpendicularly outwards bent and extends along the plane where the U-shaped frame is located to form a supporting structure for installing the X-ray machine, an installation table is detachably and fixedly installed on the supporting structure, a shielding protection frame is installed on the installation table, and a space formed between the shielding protection frame and the installation table is used for installing the X-ray machine.
Preferably, the free end of the U-shaped frame close to one side of 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 installation parts, and the free end of each installation part is provided with an installation seat for connecting and fixing the hook.
Further preferred structure sets up, the detector overcoat is equipped with the shielding protective housing, the shielding protective housing is close to one side of U type frame is fixed to be provided with two at least joints that are used for the mounting groove of installation department. The double-layer aluminum pipe adopted by the U-shaped frame is fixedly connected through a plurality of connecting rods, and the length of each connecting rod is matched with the width of the X-ray machine.
Advantageous effects
The detection device provided by the invention can adapt to the electrified visual detection of the multi-split power transmission line, the imaging definition and accuracy can be ensured through the X-ray machine and the detector which are relatively fixedly arranged, the field debugging is not needed, and an ideal imaging effect can be obtained no matter what posture is.
According to the invention, by adopting hook type detection, the position and the posture to be detected can be controlled through the ground, and the detection condition can be known in real time through the camera shooting unit, so that the effects of ground operation and visual detection are achieved; the electric arc injury and the hidden danger of falling caused by equipotential overhead work 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 needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is an isometric view of the structure of the present invention;
FIG. 2 is an enlarged view of the structure of region 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 view of a detection device adjusted using dual lifting cords;
FIG. 8 is a schematic view of a single hoist rope adjustment detection device for line changes;
FIG. 9 is a schematic view of the attitude of the alignment detection device;
FIG. 10 is a schematic view showing the manner of a sling binding operation in example 2.
In the figure: 1-an X-ray machine; 2-mounting a platform; 3-shielding protection frame; 4-U-shaped frame; 5-a crescent moon plate; 6-ball transfer unit; 7-shielding protective shell; 8-a detector; 9-hanging hooks; 10-mounting grooves; 11-a mounting seat; 12-a mounting portion; 13-a connecting rod; 14-a first bend; 15-a second bend; 16-a hoisting ring; 17-ground line; 18-a transmission line; 61-ball seat; 62-ball.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in 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 obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent 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", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the 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 otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example 1:
the method for detecting the X-ray live line of the power transmission line based on the ground potential is shown in the attached figures 6-9 of the specification and comprises the following steps:
step ST100, personnel in place: the equipment installer goes up the tower and hoists the detection device to the tower;
step ST200, accessory installation: an installer on the tower buckles the lifting ring 16 which is used for lifting the detection device and slides along the ground wire 17 on the ground wire 17, penetrates the lifting rope through the lifting ring 16 and firmly binds one end of the lifting rope 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, the device hangs up: ground personnel lift the detection device by pulling the other free end of the lifting rope, and installation personnel on the tower adjust the posture of the detection device through a special insulating 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: when a person on the tower gets off the tower or leaves 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 detection area, communicates with the detection device through a ground control terminal, starts the detection device to shoot the detection area to obtain the defect condition of the power transmission line in the specified area until all detection areas of the power transmission line are detected;
step ST500, a line change operation: the ground personnel lift the detection device to be separated from the currently detected power transmission line 18 by pulling the lifting rope, then utilize the special insulating deflector rod to adjust the posture of the detection device by the personnel on the tower, so that the power transmission line 18 which needs to be detected and is subjected to line replacement is subjected to the detection, and the step ST400 is repeated until the detection task is completed;
step ST600, the apparatus is set up as follows: after the detection is stopped, ground personnel suspend the detection device to the height of the ground wire in a hanging mode, personnel on the tower recover the detection device through the special insulating deflector rod, then go down the tower through the lifting rope, and finally go down the tower to complete the whole detection.
Has the advantages 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, 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:
an X-ray live detection method based on a ground potential transmission line is mainly realized by a unique detection device as shown in attached figures 1 and 3 of the specification, the detection device specifically comprises a U-shaped frame 4 formed by bending double-layer aluminum pipes which are fixedly connected with each other, and an X-ray machine 1 and a detector 8 for receiving X-rays emitted by the X-ray machine 1 and imaging are fixedly mounted at two ends of the U-shaped frame 4 respectively; one end of the U-shaped frame 4, which is close to the detector 8, can also be detachably and fixedly provided with two hooks 9, and the two hooks 9 are respectively and symmetrically arranged on two sides of the detector 8; the device further comprises a camera unit with a view field covering the detector 8, and the camera unit is electrically connected with a wireless communication module 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 X-rays absorbed by a power transmission line or a power transmission line hardware fitting between the X-ray machine 1 and the detector 8 are well imaged on the detector 8, so that an X-ray film of the detected power transmission line is obtained, and the X-ray film is used for analyzing the defect condition. During actual detection, the hook 9 is hung on a power transmission line to be detected, a lifting ring hung on a ground wire at the top end of an iron tower in advance is matched with a rope bound on the U-shaped frame 4, and a ground operator applies 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 shooting unit can feed back a shooting picture to the background control terminal in real time so that ground operators can adjust shooting postures adaptively, the communication mode of the shooting unit and the background control terminal is conventional wireless communication in the prior art, and the shooting unit and the background control terminal are only used for assisting the ground operators in adjusting the detection device so as to overcome the defect that the ground operators cannot operate visually at high altitude. 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 distance matching between the X-ray machine 1 and the detector 8, the distance between the X-ray machine 1 and the detector 8 is always kept unchanged no matter what shooting posture, and the preset optimal effect can be obtained. On the other hand, there is sufficient space that is used for holding the multi-split line based on the top of couple 9 and U type frame 4, consequently, adopts the detection device that this application provided to can satisfy the detection of current multi-split line, does not receive the limitation of the arrangement mode and the power transmission line model of multi-split line, detects the compatibility height.
The operation method comprises the following steps:
the method comprises the following steps: firstly, the detection device is manually conveyed to an iron tower through a lifting rope;
step two: the hanging ring or the device which can realize the similar fixed pulley is hung on the ground line at the top end of the iron tower in advance. The function is to provide tension support so as to adjust the position and the posture of the detection device in the follow-up process.
Step three: at least one lifting rope is passed through the lifting ring or other devices similar to the fixed pulley by the personnel on the tower, and one end of the lifting rope is tightly tied to 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, wherein one free end fastens one side of the U-shaped frame 4 close to the detector 8, the other free end fastens one side of the U-shaped frame 4 close to the X-ray machine 1, the two lifting ropes penetrate through the lifting ring, and the two independent operators or one operator controls the lifting ring with both hands respectively, so that the posture of the detection device in the detection operation is adjusted.
Step four: personnel on the tower utilize specialized tool to hang detection device's couple 9 on being detected the transmission line, then through ground lifting rope control personnel with detection device along the transmission line slip to appointed detection area, reach visual operation effect through the unit of making a video recording, according to actual conditions, carry out X ray detection through ground control terminal. It should be noted that the establishment of communication control with the X-ray machine 1 through the ground control terminal belongs to the prior art, and of course, wired control matched with the X-ray machine 1 itself may be adopted, and the control line may be fixed together with the lifting rope, but the wired control is relatively complicated, and preferably, the wireless control is adopted. The embodiment is mainly improved on the structure of the detection device, and the related control part adopts the prior art.
After the detection of one power transmission line is finished, the detection device is hoisted by the lifting rope to be separated from the original power transmission line, and then the personnel on the tower can adjust the position of the power transmission line which cannot be changed by the lifting rope by using a special lifting lever tool to peel the power transmission line, so that the hook 9 is hung on the power transmission line to be detected to perform the actions, and the detection is repeated until the detection work is completely finished.
In this embodiment, further referring to fig. 10 in the specification, on the basis of the above description, the present embodiment further provides another operation mode, in which a single short lifting rope is used to reliably bind two ends of the C-shaped frame 4, and then a lifting rope penetrating through the lifting ring is used to bind to a balance point of the short lifting rope for lifting the C-shaped frame 4; meanwhile, the third lifting rope is directly tied to the C-shaped frame 4 on the premise of not penetrating through the lifting ring, and the operation is carried out by ground personnel so as to avoid the occurrence of wire collision, winding and other operations. As shown in particular in fig. 10. The difference lies in the form and the position difference of ligature in above-mentioned scheme, and the personnel and the mode that need carry out the operation are different, all can reach equal technological effect.
Example 3:
in order to further refine the structure of the detection device according to the present application, in embodiment 1, with reference to fig. 1 to 5 of the specification, the U-shaped frame 4 has a first bent portion 14 close to the X-ray machine 1 and a second bent portion 15 close to the detector 8, and a crescent plate 5 for sliding contact with the power transmission line is fixedly mounted on an inner side of the second bent portion 15. The crescent plate 5 is used for protecting the U-shaped frame 4 so as to avoid the reduction of strength caused by long-term sliding friction damage of the power 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, a plurality of universal ball units 6 for reducing the sliding friction with the power transmission line are mounted on the crescent moon plate 5, 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 slide the phenomenon emergence of the in-process jamming that appears on the power transmission line, guarantees throughout that the power transmission line only with universal ball unit 6 upper surface contact to improve detection device's flexibility.
In this embodiment, the ball transfer unit 6 includes a ball seat 61 penetrating the crescent plate 5 and detachably and fixedly installed inside the crescent plate 5, and a ball 62 rolling-installed inside the ball seat 61. Any ball 62 can both be in ball seat 61 free rotation to make the power transmission line can only contact with ball 62 all the time, effective area of contact reduces greatly, and ball 62's free rotation can further reduce frictional resistance simultaneously, thereby realizes the smooth-going slip of detection device on the power transmission line. The inside wall of the hook 9 is also provided with a plurality of the ball transfer units 6.
In order to enable the X-ray machine 1 not to be interfered as far as possible, preferably, the free end of the U-shaped frame 4 close to one side of the first bending part 14 is perpendicularly bent outwards and extends along the plane where the U-shaped frame 4 is located to form a supporting structure for installing the X-ray machine 1, the supporting structure is detachably and fixedly provided with an installation table 2, the installation table 2 is provided with a shielding protection frame 3, and a space formed between the shielding protection frame 3 and the installation table 2 is used for installing the X-ray machine 2.
In this embodiment, the free end of the U-shaped frame 4 near the second bending portion 15 is vertically bent and extends along the vertical direction of the plane of the U-shaped frame 4 to form two symmetrically arranged mounting portions 12, and the free end of the mounting portion 12 is mounted with a mounting seat 11 for connecting and fixing the hook 9.
Further preferred structure sets up, detector 8 overcoat is equipped with shielding protective housing 7, shielding protective housing 7 is close to one side of U type frame 4 is fixed to be provided with two at least mounting grooves 10 that are used for the joint 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 adapted to the width of the X-ray machine 1.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. An X-ray live detection method based on a ground potential transmission line is characterized by comprising the following steps: the method comprises the following steps:
step ST100, personnel in place: the equipment installer goes up the tower and hoists the detection device to the tower;
step ST200, accessory installation: an installer on the tower buckles a hanging ring (16) which is used for hanging the detection device and slides along the ground wire (17) on the ground wire (17), and a lifting rope penetrates through the hanging ring (16) and firmly binds one end of the lifting rope with the detection device, so that the detection device is in a horizontal state when the lifting rope lifts the detection device;
step ST300, the device hangs up: ground personnel lift the detection device by pulling the other free end of the lifting rope, and installation personnel on the tower adjust the posture of the detection device through a special insulating deflector rod, so that the power transmission line (18) to be detected is hung in a hook (9) of the detection device;
step ST400, defect detection: personnel on the tower get off the tower or quit outside the effective radiation range of the detection device, ground operators control the detection device to slide along the power transmission line (18) through a lifting rope until the detection device reaches a preset to-be-detected area, the detection device is communicated with the detection device through a ground control terminal, the detection device is started to shoot the to-be-detected area to obtain the defect condition of the power transmission line in the specified area until all the to-be-detected areas of the power transmission line are detected;
step ST500, a line change operation: the ground personnel lift the detection device to be separated from 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 insulating deflector rod to enable the power transmission line (18) which needs to be detected and is subjected to line replacement, and the ST400 is repeated until the detection task is completed;
step ST600, the apparatus is set up as follows: after the detection is stopped, ground personnel suspend the detection device to the height of the ground wire in a hanging mode, personnel on the tower recover the detection device through the special insulating deflector rod, then go down the tower through the lifting rope, and finally go down the tower to complete the whole detection.
2. The ground potential transmission line-based X-ray live detection method according to claim 1, characterized in that: the detection device comprises a U-shaped frame (4) formed by bending double-layer aluminum pipes which are fixedly connected with each other, wherein an X-ray machine (1) and a detector (8) used for receiving X-rays emitted by the X-ray machine (1) and imaging are fixedly mounted at two ends of the U-shaped frame (4) respectively; one end of the U-shaped frame (4) close to the detector (8) can be also detachably and fixedly provided with two hooks (9), and the two hooks (9) are respectively and symmetrically arranged on two sides of the detector (8); the camera shooting device is characterized by further comprising a camera shooting unit, wherein the view field covers the detector (8), and the camera shooting unit is electrically connected with a wireless communication module in communication connection with the background control terminal.
3. The ground potential transmission line-based X-ray live detection method according to claim 2, characterized in that: the U-shaped frame (4) is provided with a first bent part (14) close to the X-ray machine (1) and a second bent part (15) close to the detector (8), and a crescent plate (5) in sliding contact with a power transmission line is fixedly mounted on the inner side of the second bent part (15); a plurality of universal ball units (6) used for reducing sliding friction with the power transmission line are mounted on the crescent plate (5), and the distance between any two adjacent universal ball units (6) is smaller than the minimum outer diameter of the power transmission line.
4. The ground potential transmission line-based X-ray live detection method according to claim 3, characterized in that: 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 balls (62) arranged in the ball seat (61) in a rolling manner; the inside wall of couple (9) is also installed a plurality ofly universal ball unit (6).
5. The ground potential transmission line-based X-ray live detection method according to claim 4, characterized in that: u type frame (4) are close to the free end of first kink (14) one side is outwards buckled perpendicularly and is extended the formation and be used for the installation along U type frame (4) place plane the bearing structure of X-ray production apparatus (1), last detachable fixed mounting of bearing structure 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 the installation X-ray production apparatus (2).
6. The ground potential transmission line-based X-ray live detection method according to claim 5, characterized in that: the U-shaped frame (4) is close to the free end of one side of the second bending part (15) and is vertically bent and extends in the vertical direction of the plane where the U-shaped frame (4) is located to form two symmetrically-arranged installation parts (12), and the free end of each installation part (12) is provided with an installation seat (11) used for connecting and fixing the hook (9).
7. The ground potential transmission line-based X-ray live detection method according to claim 6, characterized in that: a shielding protective shell (7) is sleeved outside the detector (8), and at least two mounting grooves (10) used for clamping the mounting part (12) are fixedly arranged on one side, close to the U-shaped frame (4), of the shielding protective shell (7); 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 adapted to the width of the X-ray machine (1).
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| CN112834537B (en) | 2024-03-22 |
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Denomination of invention: A method for X-ray live detection of transmission lines based on ground potential Granted publication date: 20240322 Pledgee: Bank of Chengdu science and technology branch of Limited by Share Ltd. Pledgor: SICHUAN SCOM INTELLIGENT TECHNOLOGY CO.,LTD. Registration number: Y2024980023895 |