CN112432960A - X-ray detection device and method for strain clamp of overhead line - Google Patents
X-ray detection device and method for strain clamp of overhead line Download PDFInfo
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- CN112432960A CN112432960A CN202011117459.1A CN202011117459A CN112432960A CN 112432960 A CN112432960 A CN 112432960A CN 202011117459 A CN202011117459 A CN 202011117459A CN 112432960 A CN112432960 A CN 112432960A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
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Abstract
The invention provides an X-ray detection device for a strain clamp of an overhead line, which comprises an X-ray source, a detector and a bracket, wherein the X-ray source and the detector are respectively arranged at two ends of the bracket, the X-ray source irradiates X-rays onto the detector, the strain clamp to be detected is positioned in an X-ray irradiation area on the surface of the detector, and pulleys for the detection device to slide on the line are arranged at two sides of the detector. The X-ray detection device has the advantage that the X-ray detection device can slide on a line. In addition, the invention also discloses a detection method of the strain clamp of the overhead line.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to an X-ray detection device and method for an overhead line strain clamp, and belongs to the technical field of electric power detection equipment.
[ background of the invention ]
The overhead line is the most important power equipment for realizing long-distance transmission of electric energy at present, and has the characteristics of high voltage level, large current and the like. The connection hardware fitting is an important component of the overhead line, and the quality of the connection hardware fitting directly influences whether the power transmission line can work normally and whether a power grid can run safely and reliably. The strain clamp fixes a wire, bears the tension of the wire, and hangs the wire to a strain insulator-string group or a hardware fitting on a tower, so that once an accident occurs, the wire can be directly disconnected, a line is stopped, great economic loss is caused to a power grid company, and serious social influence can be caused. Therefore, the crimping quality detection of the strain clamp is very important.
At present, overhead line strain clamp's crimping quality detects through the X ray, but because transmission line strain clamp is located the iron tower top, it is higher apart from ground height, and electrified line voltage is higher, if need normally carry out X ray detection, generally need carry out the outage of certain time, can influence the electric energy of circuit and carry, cause the long-time power failure of whole circuit, bring inconvenience for a large amount of users, secondly, 110KV, 220 KV's transmission tower compact structure, the combination clearance is less, X ray detection device's volume is great relatively, can make the operation degree of difficulty when electrified detection improves.
[ summary of the invention ]
The invention aims to provide an X-ray detection device for an overhead line strain clamp, which can slide on a line.
The technical scheme adopted by the invention is as follows:
the utility model provides an X ray detection device of overhead line strain clamp, includes X ray source, detector and support, X ray source and detector are established respectively at the support both ends, X ray source shines X ray on the detector, the strain clamp is in detector surface X ray irradiation region, the detector both sides are equipped with and supply detection device gliding pulley on the line.
Preferably, the X-ray source comprises an X-ray machine, a base fixed on the support and a shielding frame for shielding an external electric field, wherein the X-ray machine is mounted on the base, and the shielding frame is arranged outside the X-ray machine in a surrounding manner.
Preferably, the probe comprises a probe body and a shielding shell wrapped on the outer layer of the probe body, and the shielding shell is used for shielding an electric field outside the probe body.
Preferably, the X-ray source comprises an X-ray machine, the X-ray machine is provided with an emitting end, the strain clamp is located at the center of the detector, and the emitting end, the strain clamp and the center of the detector are located in the same plane.
Preferably, the X-ray source is provided with a wireless remote control switch, the wireless remote control switch is provided with a wireless remote controller, and the wireless remote controller is used for turning on or off the X-ray source.
The beneficial effects of the invention are as follows:
the invention relates to a strain clamp detector, which comprises a detector, pulleys, a detection device and a detection device, wherein the detection device is arranged on a line, the detection device is arranged on the line, and the detection device can slide on the line.
In addition, the X-ray detection device comprises a detector and an X-ray source, wherein the X-ray source irradiates X-rays on the surface of the detector, the detector comprises a detector body and a shielding shell wrapped on the outer layer of the detector body, the shielding shell shields the electric field outside the detector body, so that the detector body is not influenced by the external electric field, the X-ray source comprises an X-ray machine, a base and a shielding frame, wherein the shielding frame is used for shielding an external electric field of the X-ray machine, so that the X-ray machine is not influenced by the external electric field, the strain clamp can be detected under a strong electric field without power failure treatment, economic loss caused by power failure can be reduced, and the detection difficulty of the strain clamp is also reduced.
The X-ray source is also provided with a wireless remote control switch, the wireless remote control switch is provided with a wireless remote controller, when an operator places the X-ray detection device on a strain clamp to be detected, the operator withdraws to a safe position, and a ground worker controls the X-ray source to emit X-rays through the wireless remote controller for detection.
The invention also provides a detection method of the tension-resistant wire clamp of the overhead line, the required tools comprise an X-ray detection device, a lifting device, an insulating rope and an insulating rope ladder, the X-ray detection device adopts any one of the X-ray detection devices, the X-ray detection device is provided with a wireless remote controller, and the detection method sequentially comprises the following steps:
s1, an operator on the tower wears a shielding garment to carry an insulating rope ladder, climbs the tower to a phase line to be detected, fixes the insulating rope ladder on a conducting wire and releases the insulating rope ladder to the ground, and the equipotential operator carries a lifting device to climb the insulating rope ladder to reach a strain clamp;
s2, binding the insulating rope on the X-ray detection device by a ground operator, lifting the X-ray detection device by an equipotential operator through a lifting device, and fixing the X-ray detection device at the strain clamp;
s3, evacuating the on-tower operating personnel and the equipotential operating personnel to a safe position, controlling the X-ray detection device to emit X-ray radiation by the ground operating personnel through the wireless remote controller, irradiating the X-ray radiation to the strain clamp and mapping the strain clamp on a detector, and acquiring detection information by the detector;
and S4, after the detection is finished, firstly placing the X-ray detection device on the ground to realize grounding, removing the insulating rope ladder and the lifting device by the equipotential operating personnel, and finally, taking the insulating rope ladder and the lifting device down to complete the operation.
The detection method has the advantages that:
in the invention, the detection method utilizes an X-ray detection device to detect the strain clamp, the X-ray detection device comprises a detector and an X-ray source, wherein the detector comprises a detector body and a shielding shell wrapped on the outer layer of the detector body, the shielding shell wraps the detector body in the detector body, at the moment, the whole shielding shell becomes a Faraday cage, so that the potential difference in the shielding shell is zero, the electric field intensity is zero, namely, the detector body in the shielding shell cannot be influenced by an external electric field, and similarly, the X-ray source comprises an X-ray machine, a base and a shielding frame, the principle of the shielding frame is similar to that of the shielding shell, the X-ray machine can be protected from the external electric field, so the detection method can be implemented in a strong electric field without power failure treatment, and the economic loss caused by power failure can be reduced, the detection difficulty of the strain clamp is also reduced.
In addition, because the detection method is carried out in a strong voltage environment, in order to protect the operators from the influence of an external electric field, the operators need to wear a shielding clothes and form an equipotential to enter the electric field, because the X-ray machine in the X-ray detection device is a pulse X-ray machine which has strong radiation in the working process, if the X-ray machine approaches to the shielding clothes, the operators can be damaged, therefore, before starting the X-ray detection device, all the operators need to remotely power the X-ray detection device, after the operators leave the safe position, the ground operators control the X-ray machine to start through a wireless remote controller, the X-ray detection device needs to be closed to approach after the detection is finished, and then, in order to protect the X-ray detection device and the operators, the X-ray detection device needs to be grounded before being placed on the ground, the leakage current and static charge which are possibly generated on the X-ray detection device are introduced into the ground, so that the electric shock of human bodies and possible accidents such as fire, explosion and the like are avoided.
Preferably, in step S2, the equipotential operator fixes a pulley of the X-ray detection device on the line, the pulley allows the X-ray detection device to slide on the line, and the equipotential operator adjusts the X-ray detection device until the strain clamp is in the X-ray irradiation area on the surface of the detector.
Preferably, in step S3, the equipotential operator moves down the insulating ladder to exit the equipotential, and the upper-tower operator moves down the tower.
Preferably, the X-ray detection device is provided with a receiver for receiving the information acquired by the detector, and the receiver receives and stores the image acquired by the detector.
Preferably, when the voltage level is greater than 500KV, the equipotential operator in S1 enters the strong electric field along the strain insulator string by using a two-short-three-law spanning method.
Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.
[ description of the drawings ]
The invention is further described below with reference to the accompanying drawings:
fig. 1 is a first schematic structural diagram of an embodiment 1 of the present invention;
FIG. 2 is a second schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a probe in embodiment 1 of the present invention;
FIG. 4 is a schematic structural diagram of an X-ray source in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a pulley in embodiment 1 of the present invention.
[ detailed description ] embodiments
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1:
as shown in fig. 1 to 5, this embodiment shows an X-ray detection device of overhead line strain clamp, including X-ray source 2, detector 3 and support 1, X-ray source 2 and detector 3 establish respectively at support 1 both ends, X-ray source 2 shines X-ray on detector 3, strain clamp 5 is in 3 surperficial X-ray irradiation regions of detector, 3 both sides of detector are equipped with and supply detection device gliding pulley 4 on the line.
In this embodiment, detector 3 both sides are equipped with and are used for fixing detection device's pulley 4, pulley 4 can supply detection device slides on the circuit, and the operation personnel installs pulley 4 on the circuit, makes detection device remove along the circuit through adopting other appurtenance such as insulating rope, makes detection device can be accurate the arrival wait to detect strain clamp 5 department, and this embodiment can make the operation personnel operate detection device at a distance through pulley 4, makes it reach the assigned position, and in addition, when dismantling detection device, the operation personnel only need just can bring this detection device back to the side through appurtenance such as insulating rope, be convenient for retrieve, make the installation or the dismantlement of this embodiment become more simple and convenient, also can reduce operation degree of difficulty of operation personnel simultaneously.
In order to protect the X-ray source 2 and the detector 3 from the external electric field, in this embodiment, the X-ray source 2 includes an X-ray machine 21, a base 23 fixed on the support 1, and a shielding frame 22 for shielding the external electric field, the X-ray machine 21 is installed on the base 23, the shielding frame 22 surrounds the outside of the X-ray machine 21, the X-ray machine 21 is wrapped between the base 23 and the shielding frame 22, in addition, the detector 3 includes a detector body 31 and a shielding shell 32, and the detector body 31 is wrapped inside the shielding shell 32.
In this embodiment, the shielding shell 32 is made of a metal plate or a metal mesh or a combination of a metal plate and a metal mesh on the 6 surfaces, the shielding shell 32 wraps the detector body 31 inside, at this time, the whole shielding shell 32 becomes a faraday cage, so that the potential difference inside the shielding shell 32 is zero, and the electric field strength is zero, that is, the detector body 31 inside the shielding shell 32 will not be affected by the external electric field, in addition, the principle of the shielding frame 22 is similar to that of the shielding shell 32, and the faraday cage principle is also applied to form an equipotential inside the shielding frame 22, so as to protect the X-ray machine 21 from the external electric field, so that the detector body 31 and the X-ray machine 21 in this embodiment can both normally operate in the presence of the external electric field, can realize the detection of the strain clamp 5 in the presence of electricity, and can greatly reduce the detection difficulty of the strain clamp 5, and secondly, power failure treatment is not needed in the detection process, so that the inconvenience in life brought to a large number of clients due to power failure can be avoided, and a large amount of economic loss caused by power failure can be reduced.
In order to enable the operator to operate remotely, the X-ray source 2 of the present embodiment is further provided with a wireless remote control switch, the wireless remote control switch is provided with a wireless remote controller, when the operator places the embodiment on the strain clamp 5 to be detected, the operator withdraws to a safe position, the ground operator controls the X-ray source 2 to emit X-rays through the wireless remote controller for detection, in addition, the present embodiment is further provided with a receiver, which is used for receiving the information collected by the detector 3, since the X-ray source 2 in the present embodiment is a pulse X-ray machine 21, which has the radiation to cause a certain degree of damage to human body, the present embodiment controls the opening and closing of the X-ray source 2 by adopting the wireless remote controller, the X-ray source 2 can be remotely controlled by an operator, so that the damage of radiation to the operator is reduced, and the safety of the operator is improved.
In order to improve the accuracy of the detection result of this embodiment, in this embodiment, the X-ray machine 21 is provided with an emitting end, the position of the emitting end, which is mapped on the detector 3, coincides with the central point of the detector 3, the strain clamp 5 to be detected is located at the central position of the detector 3, and the centers of the emitting end, the strain clamp 5 to be detected and the detector 3 are all located in the same plane, so that the effective irradiation area of the X-ray machine 21 on the detector 3 is large, and meanwhile, the area of the strain clamp 5 to be detected entering the irradiation area is also large, so that the X-ray can completely irradiate the area to be detected, more complete detection information can be collected, and the detection result is more accurate.
Example 2:
this embodiment has demonstrated the detection method of an overhead line strain clamp 5, and required instrument includes X ray detection device, elevating gear, insulating rope and insulating rope ladder, X ray detection device adopts the X ray detection device of any one of claims 1 to 4, X ray detection device is furnished with wireless remote controller, the step of detection method is as follows:
firstly, an operator on a platform wears a shielding clothes to carry an insulating rope ladder, climbs to a forehead phase line to be detected, fixes one end of the insulating rope ladder on a line, releases the other end of the insulating rope ladder to the ground, carries a lifting device by an equipotential operator, reaches a position of a strain clamp 5 to be detected by climbing the insulating rope ladder, fixes the lifting device on a lead close to the strain clamp 5, wherein the lifting device consists of an insulating pulley and an insulating rope, the insulating pulley is used for bearing and fixing on the lead, the insulating rope is lowered to the ground, the ground operator ties the insulating rope on an X-ray detection device, the equipotential operator lifts the X-ray detection device to the position close to the lead by the lifting device, and hangs a pulley 4 on the X-ray detection device on the lead to enable the X-ray detection device to move on the lead, the equipotential operating personnel controls the X-ray detection device to move to the strain clamp 5, so that the strain clamp 5 to be detected is positioned in the X-ray irradiation area on the surface of the detector 3, and the X-ray can irradiate the position to be detected.
After the installation of the X-ray detection device is completed, equipotential operators move downwards along the insulating ladder until exiting from the equipotential, operators on the tower move downwards along the tower, after all the operators evacuate to the safe position, ground operators start the X-ray detection device through the wireless remote controller, an X-ray source 2 in the X-ray detection device emits X-rays, the X-rays irradiate the strain clamp 5 and are mapped on a detector 3, the detector 3 collects detection information and sends the collected information to a receiver on the ground, the ground operators check the relevant information of the strain clamp 5 through the receiver, and judge whether the strain clamp 5 has potential safety hazards.
After the detection is finished, the ground operating personnel close the X-ray detection device through the wireless remote controller, the equipotential operating personnel return to the position of the lead to remove the X-ray detection device, the X-ray detection device is placed on the ground through the lifting device to realize grounding, the X-ray detection device is recovered by the ground operating personnel, then the equipotential operating personnel move downwards along the insulating rope ladder to withdraw from the equipotential, and the operating personnel on the tower remove the insulating rope ladder and the lifting device and move downwards along the tower to the ground.
Example 3:
the main difference between this embodiment and embodiment 2 is that the voltage level of the strain clamp 5 in this embodiment is greater than 500KV, in this embodiment, the equipotential operator enters a strong electric field along the strain insulator string by using a "two-short-three" method, and the equipotential operator steps on the adjacent steel caps of one string of insulators with both hands holding on the adjacent steel caps of the other string of insulators, and moves the insulators one by one on the insulator string.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (10)
1. The utility model provides an X ray detection device of overhead line strain clamp which characterized in that: including X ray source, detector and support, X ray source and detector are established respectively at the support both ends, X ray source shines X ray on the detector, and the strain clamp is located detector surface X ray and shines the region, the detector both sides are equipped with the gliding pulley of confession X ray detection device on the circuit.
2. The X-ray detection device for the overhead line strain clamp of claim 1, wherein: the X-ray source comprises an X-ray machine, a base fixed on the support and a shielding frame used for shielding an external electric field, wherein the X-ray machine is installed on the base, and the shielding frame is arranged outside the X-ray machine in a surrounding mode.
3. The X-ray detection device for the overhead line strain clamp of claim 1, wherein: the detector comprises a detector body and a shielding shell wrapped on the outer layer of the detector body, wherein the shielding shell is used for shielding an electric field outside the detector body.
4. The X-ray detection device for the overhead line strain clamp of claim 1, wherein: the X-ray source comprises an X-ray machine, the X-ray machine is provided with an emitting end, the strain clamp is located at the center of the detector, and the emitting end, the strain clamp and the center of the detector are located in the same plane.
5. The X-ray detection device for the overhead line strain clamp of claim 1, wherein: the X-ray source is provided with a wireless remote control switch, the wireless remote control switch is provided with a wireless remote controller, and the wireless remote controller is used for turning on or turning off the X-ray source.
6. The utility model provides a detection method of overhead line strain clamp, required instrument includes X ray detection device, elevating gear, insulating rope and insulating rope ladder, its characterized in that: the X-ray detection device adopts the X-ray detection device as claimed in any one of claims 1 to 5, the X-ray detection device is provided with a wireless remote controller, and the detection method sequentially comprises the following steps:
s1, an operator on the tower wears a shielding garment to carry an insulating rope ladder, climbs the tower to a phase line to be detected, fixes the insulating rope ladder on a conducting wire and releases the insulating rope ladder to the ground, and the equipotential operator carries a lifting device to climb the insulating rope ladder to reach a strain clamp;
s2, binding the insulating rope on the X-ray detection device by a ground operator, lifting the X-ray detection device by an equipotential operator through a lifting device, and fixing the X-ray detection device at the strain clamp;
s3, evacuating the on-tower operating personnel and the equipotential operating personnel to a safe position, controlling the X-ray detection device to emit X-rays by the ground operating personnel through the wireless remote controller, irradiating the X-rays to the strain clamp and mapping the strain clamp on the detector, and acquiring detection information by the detector;
and S4, after the detection is finished, firstly placing the X-ray detection device on the ground to realize grounding, removing the insulating rope ladder and the lifting device by the equipotential operating personnel, and finally, taking the insulating rope ladder and the lifting device down to complete the operation.
7. The method for detecting the strain clamp of the overhead line according to claim 6, wherein: and S2, fixing a pulley of the X-ray detection device on a line by the equipotential operator, wherein the pulley is used for the X-ray detection device to slide on the line, and the equipotential operator adjusts the X-ray detection device until the strain clamp is positioned in the X-ray irradiation area on the surface of the detector.
8. The method for detecting the strain clamp of the overhead line according to claim 6, wherein: in step S3, the equipotential operator moves down along the insulating ladder to exit the equipotential, and the operator on the tower moves down along the tower.
9. The method for detecting the strain clamp of the overhead line according to claim 6, wherein: the X-ray detection device is provided with a receiver for receiving the acquired information of the detector, and the receiver receives and stores the image acquired by the detector.
10. The method for detecting the strain clamp of the overhead line according to claim 6, wherein: and when the voltage grade is greater than 500KV, the equipotential operator in the S1 enters a strong electric field along the tension insulator string by adopting a two-short-three-way crossing method.
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| CN113866190A (en) * | 2021-08-30 | 2021-12-31 | 广西电网有限责任公司百色供电局 | Ray detection device for crimping quality inside circuit |
| CN113916909A (en) * | 2021-10-29 | 2022-01-11 | 贵州贵飞飞机设计研究院有限公司 | Nondestructive testing system and method for moving type aerial high-voltage cable |
| CN113960410A (en) * | 2021-10-15 | 2022-01-21 | 国网辽宁省电力有限公司营口供电公司 | Be suitable for overhead conductor gold utensil crimping on-line measuring device |
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