CN113432860B - Ground wire insulator electrode performance simulation test device and method - Google Patents
Ground wire insulator electrode performance simulation test device and method Download PDFInfo
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- CN113432860B CN113432860B CN202110832461.5A CN202110832461A CN113432860B CN 113432860 B CN113432860 B CN 113432860B CN 202110832461 A CN202110832461 A CN 202110832461A CN 113432860 B CN113432860 B CN 113432860B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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Abstract
The application discloses ground wire insulator electrode performance simulation test device and method, the device includes: insulator main body, tensioner and tension simulator; the insulator body includes: iron caps, iron cap electrodes and steel foot electrodes; the iron cap electrode and the steel foot electrode are both arranged on the iron cap, and a gap is formed between the iron cap electrode and the steel foot electrode; the tensioner comprises a wire and a tightness adjuster; one end of the wire is connected with the bottom of the iron cap, and the other end of the wire is fixedly arranged; the tightness adjuster is arranged on the wire and used for adjusting the tightness of the wire; the tension simulator comprises an elastic piece and an elastic regulator; one end of the elastic piece is connected with the iron cap electrode, and the other end of the elastic piece is connected with the first end of the elastic regulator; the second end of the elastic regulator is fixedly arranged and used for controlling the elastic piece to stretch according to a preset stretching period. The whole device is simple and convenient to operate, has high automation degree, and can be used for simulating the test degradation condition of the iron cap electrode after being installed to obtain the mechanical property of the ground wire insulator.
Description
Technical Field
The application relates to the technical field of insulator performance simulation, in particular to a device and a method for simulating the performance of an electrode of a ground wire insulator.
Background
The ground wire insulator consists of a common insulator and a discharge electrode and is used for connecting an overhead ground wire and an iron tower to play roles of mechanical support and electrical isolation. The existing standard for specifying the ground wire insulator is JB/T9680-2012 insulator for high-voltage overhead transmission line ground wire. In this standard, since the shape and size parameters of the discharge electrode are specified, there is no simulation experiment for judging whether the performance of the discharge electrode meets the standard in an experiment for detecting whether the ground wire insulator meets the standard, and only the insulator main body and only the bolt torque for fixing the discharge electrode are often judged in a sampling experiment.
Disclosure of Invention
In view of this, the purpose of the present application is to provide a device and a method for simulating the performance of an electrode of a ground wire insulator, which are used for solving the problem that in the existing ground wire insulator detection standard, there is no simulation experiment for judging whether the performance of a discharge electrode meets the standard.
To achieve the above technical object, a first aspect of the present application provides a ground wire insulator electrode performance simulation test device, including: insulator main body, tensioner and tension simulator;
the insulator body includes: iron caps, iron cap electrodes and steel foot electrodes;
the iron cap is horizontally and fixedly arranged;
the iron cap electrode and the steel foot electrode are both arranged on the iron cap, and a gap is formed between the iron cap electrode and the steel foot electrode;
the tensioner comprises a wire and a tightness adjuster;
one end of the wire is connected with the bottom of the iron cap, and the other end of the wire is fixedly arranged;
the tightness regulator is arranged on the wire and used for regulating tightness of the wire;
the tension simulator comprises an elastic piece and an elastic regulator;
the elastic piece is horizontally arranged, one end of the elastic piece is connected with the iron cap electrode, and the other end of the elastic piece is connected with the first end of the elastic regulator;
the second end of the elastic regulator is fixedly arranged and used for controlling the elastic piece to stretch and retract according to a preset stretching period.
Further, a humidifier is also included;
the wetting device is fixedly arranged, the nozzle faces to the joint of the iron cap and the iron cap electrode and is used for storing the reagent and spraying the reagent according to a preset spraying period.
Further, the reagent is a sodium chloride solution.
Further, the tensioner further comprises a tension meter;
the tension meter is arranged on the wire and used for displaying the tension of the wire.
Further, the spring force regulator is an electric turntable;
the other end of the elastic piece is arranged on the end face of the electric rotating disc;
the electric turntable is used for driving the elastic piece to stretch out and draw back.
Further, the iron cap is hung on the bracket.
The second aspect of the application provides a ground wire insulator electrode performance simulation test method, which is applied to the ground wire insulator electrode performance simulation test device;
the method comprises the following adjustment steps and a testing step after the adjustment step is completed:
the adjusting step comprises the following steps:
the tension of the wire is adjusted to a preset tension value through the tension adjuster;
the elastic piece is controlled by the elastic regulator to stretch according to a preset stretching period;
the testing steps comprise:
and measuring the gap length value between the iron cap electrode and the steel foot electrode according to a preset time period, and generating a change curve of the gap length value.
Further, the ground wire insulator electrode performance simulation test device further comprises: a moistener;
the adjusting step further includes:
and spraying a reagent to the joint of the iron cap electrode and the iron cap according to a preset spraying period through the humidifier.
Further, the preset tension value is in the range of 8kN to 10 kN.
Further, in the preset expansion cycle, the maximum tension of the elastic element is 5N, and the minimum tension is 0N.
According to the technical scheme, the device and the method for simulating the performance of the electrode of the ground wire insulator can simulate the connection of the insulator main body and the ground wire by arranging the tensioner; the elastic piece in the tension simulator is connected with the iron cap electrode, so that the influence of wind force on the iron cap electrode can be simulated; the whole device is simple and convenient to operate, the degree of automation is high, the mechanical performance of the device is obtained by simulating the degradation degree of the test after the installation of the iron cap electrode, and the problem that a simulation experiment for judging whether the performance of the discharge electrode accords with the standard is solved in the existing ground wire insulator detection standard.
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 a schematic diagram of the overall structure of a ground wire insulator electrode performance simulation test device according to an embodiment of the present application;
fig. 2 is a diagram showing a tension change of an elastic member rotating along with a spring force adjuster in a ground wire insulator electrode performance simulation test device according to an embodiment of the present application;
fig. 3 is a variation curve of gap length values along with test time in a ground wire insulator electrode performance simulation test method provided in an embodiment of the present application;
in the figure: 1. an insulator body; 11. an iron cap; 12. an iron cap electrode; 13. a steel foot electrode; 2. a tensioner; 21. a wire; 22. a slack adjuster; 23. a tension meter; 3. a tension simulator; 31. an elastic member; 32. a spring force regulator; 4. a moistener; 5. and (3) a bracket.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the embodiments of the present application, are within the scope of the claimed invention.
In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, interchangeably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the terms in the embodiments of the present application will be understood by those of ordinary skill in the art in a specific context.
The embodiment of the application discloses a ground wire insulator electrode performance simulation test device and a ground wire insulator electrode performance simulation test method.
Referring to fig. 1, an embodiment of the present application provides a ground wire insulator electrode performance simulation test device, including: insulator main part 1, tensioner 2 and pulling force simulator 3.
Wherein the insulator main body 1 includes: a iron cap 11, an iron cap electrode 12 and a steel foot electrode 13; the iron cap 11 is horizontally and fixedly arranged; the iron cap electrode 12 and the steel foot electrode 13 are both arranged on the iron cap 11, and a gap is formed between the iron cap electrode 12 and the steel foot electrode 13.
The tensioner 2 comprises a wire 21 and a slack adjuster 22; one end of the lead 21 is connected with the bottom of the iron cap 11, and the other end is fixedly arranged; a slack adjuster 22 is provided on the wire 21 for adjusting the slack of the wire 21.
Specifically, the tensioner 2 is used for simulating the connection condition of the iron cap 11 and the ground wire; one end of the wire 21 is connected to the bottom of the iron cap 11, for example, the wire can be connected to the steel foot electrode 13, the other end of the wire 21 is fixedly arranged, for example, the wire can be connected to the ground or a weight, and then the tightness of the wire 21 is adjusted by the tightness adjuster 22 until the actual connection condition of the insulator main body 1 is met.
The tension simulator 3 comprises an elastic piece 31 and an elastic regulator 32; the elastic piece 31 is horizontally arranged, one end of the elastic piece is connected with the iron cap electrode 12, and the other end of the elastic piece is connected with the first end of the elastic regulator 32; the second end of the elastic regulator 32 is fixedly arranged for controlling the elastic member 31 to stretch according to a preset stretch cycle. The elastic member 31 may be a spring, a rope having elasticity, or the like, without limitation.
Specifically, the tension simulator 3 is used for simulating the deterioration condition of the insulator main body 1 when the insulator main body is subjected to wind power; in practical applications, the iron cap 11 is generally horizontally installed, and the elastic member 31 is also horizontally arranged for more accurate simulation data. The elastic regulator 32 is used for driving the elastic piece 31 to periodically stretch and retract so as to simulate the periodic change of wind power under actual conditions; the spring force adjuster 32 may be an electric telescopic rod or the like.
It should be noted that, the actual wind condition of the installation site of the insulator main body 1 may be collected in advance, and the elastic force adjustment period of the elastic force adjuster 32 may be adaptively adjusted.
Further, a humidifier 4 is included; the wetting device 4 is fixedly arranged, and the nozzle faces the joint of the iron cap 11 and the iron cap electrode 12 and is used for storing the reagent and spraying the reagent according to a preset spraying period.
Specifically, the humidifier 4 is provided for simulating deterioration after corrosion of the junction of the iron cap 11 and the iron cap electrode 12, and the reagent in the humidifier 4 and the concentration of the reagent can be adjusted according to the actual place where the insulator main body 1 is installed.
Further, in this embodiment, the reagent is a sodium chloride solution.
Further, the tensioner 2 further comprises a tension meter 23; a tension meter 23 is provided on the wire 21 for displaying the tension of the wire 21.
Specifically, the tension value of the current wire 21 can be more conveniently determined by the tension meter 23.
Further, the spring force adjuster 32 is an electric turntable; the other end of the elastic piece 31 is arranged on the end face of the electric turntable; the electric turntable is used for driving the elastic piece 31 to stretch and retract. Wherein, the elastic piece 31 is connected with the electric turntable on one side, so that the rotation of the electric turntable can not interfere with the end part of the elastic piece 31.
Specifically, the rotation cycle and tension change of the spring force regulator 32 can be seen in fig. 2. The other end of the elastic piece 31 is connected to the end face of the electric turntable, so that when the electric turntable rotates circumferentially, the other end of the elastic piece 31 moves circumferentially along with the electric turntable, and the elastic piece 31 is made to perform periodic telescopic operation and up-down swinging movement, so that the wind force condition in the actual situation can be better simulated.
Further, the iron cap 11 is hung on the bracket 5, and is attached to the practical application condition that the iron cap 11 is installed on the bracket 5.
The first embodiment provided in the embodiments of the present application is the first embodiment provided in the present application, and the second embodiment provided in the present application is the following.
An embodiment II of the present application provides a ground wire insulator electrode performance simulation test method, which is applied to the ground wire insulator electrode performance simulation test device according to any one of the above embodiments, and the ground wire insulator electrode performance simulation test device includes: an insulator main body 1, a tensioner 2 and a tension simulator 3; the insulator main body 1 includes: a iron cap 11, an iron cap electrode 12 and a steel foot electrode 13; the tensioner 2 comprises a wire 21 and a slack adjuster 22; the tension simulator 3 includes an elastic member 31 and an elastic force adjuster 32.
The method comprises the following adjustment steps and a testing step after the adjustment step is completed:
the adjusting step comprises the following steps:
s11, adjusting the tension of the wire 21 to a preset tension value through a tension adjuster 22;
specifically, the preset tension value may be in the range of 8kN to 10kN according to the actual installation situation.
S12, controlling the elastic piece 31 to stretch according to a preset stretch cycle through the elastic regulator 32;
specifically, according to the actual installation situation, the maximum tension of the elastic member 31 may be 5N and the minimum tension may be 0N during the telescopic cycle.
In the case of including the humidifier 4, the adjusting step further includes:
and S13, spraying a reagent to the joint of the iron cap electrode 12 and the iron cap 11 through the humidifier 4 according to a preset spraying period.
The testing steps comprise:
s21, measuring a gap length value between the iron cap electrode and the steel foot electrode according to a preset time period, and generating a change curve of the gap length value.
The applicant found that the ground insulator body is less problematic in practical applications, with the problematic points being primarily on the cap electrode. The iron cap electrode fixed by the bolt can deviate, and the electrode gap after deviation is increased or reduced, so that the electrode is difficult to discharge under the action of lightning current or the electrode is continuously discharged under the power frequency induction voltage respectively. The deflection of the iron cap electrode is often caused by the combined action of wind force, electromagnetic force and the corrosion of a galvanized layer at the joint of the electrode and the iron cap when the electrode is subjected to the ground wire tension and the insulator. The influence on the mechanical properties of the ground wire insulator, especially the mechanical properties of the insulator iron cap electrode, under the combined action of multiple factors is not verified by a test method and a test device in the prior art.
Therefore, in the present application, by adjusting steps S11, S12 and S13, under the installation condition of the actual insulator, the situation of corrosion and degradation under the action of wind force between the iron cap 11 and the iron cap electrode 12 can be simulated, and by step S21, a change curve of the gap length value is drawn, as shown in fig. 3, the situation of mechanical performance degradation of the ground wire insulator under the actions of wind force, ground wire tension and corrosion can be effectively diagnosed.
While the present invention has been described in detail with reference to the examples, it will be apparent to those skilled in the art that the foregoing examples can be modified or equivalents substituted for some of the features thereof, and any modifications, equivalents, improvements and substitutions made therein are intended to be within the spirit and principles of the present invention.
Claims (10)
1. The ground wire insulator electrode performance simulation test device is characterized by comprising: insulator main body, tensioner and tension simulator;
the insulator body includes: iron caps, iron cap electrodes and steel foot electrodes;
the iron cap is horizontally and fixedly arranged;
the iron cap electrode and the steel foot electrode are both arranged on the iron cap, and a gap is formed between the iron cap electrode and the steel foot electrode;
the tensioner comprises a wire and a tightness adjuster;
one end of the wire is connected with the bottom of the iron cap, and the other end of the wire is fixedly arranged;
the tightness regulator is arranged on the wire and used for regulating tightness of the wire;
the tension simulator comprises an elastic piece and an elastic regulator;
the elastic piece is horizontally arranged, one end of the elastic piece is connected with the iron cap electrode, and the other end of the elastic piece is connected with the first end of the elastic regulator;
the second end of the elastic regulator is fixedly arranged and used for controlling the elastic piece to stretch and retract according to a preset stretching period.
2. The ground wire insulator electrode performance simulation test apparatus of claim 1, further comprising a humidifier;
the wetting device is fixedly arranged, the nozzle faces to the joint of the iron cap and the iron cap electrode and is used for storing the reagent and spraying the reagent according to a preset spraying period.
3. The ground wire insulator electrode performance simulation test device of claim 2, wherein the reagent is a sodium chloride solution.
4. The ground wire insulator electrode performance simulation test device of claim 1, wherein the tensioner further comprises a tension meter;
the tension meter is arranged on the wire and used for displaying the tension of the wire.
5. The ground wire insulator electrode performance simulation test device according to claim 1, wherein the spring force regulator is an electric turntable;
the other end of the elastic piece is arranged on the end face of the electric rotating disc;
the electric turntable is used for driving the elastic piece to stretch out and draw back.
6. The ground wire insulator electrode performance simulation test device of claim 1, wherein the iron cap is suspended on a bracket.
7. A ground wire insulator electrode performance simulation test method, characterized by being applied to the ground wire insulator electrode performance simulation test device according to any one of claims 1 to 6;
the method comprises the following adjustment steps and a testing step after the adjustment step is completed:
the adjusting step comprises the following steps:
the tension of the wire is regulated to a preset tension value through a tension regulator;
the elastic piece is controlled by the elastic regulator to stretch according to a preset stretching period;
the testing steps comprise:
and measuring the gap length value between the iron cap electrode and the steel foot electrode according to a preset time period, and generating a change curve of the gap length value.
8. The ground wire insulator electrode performance simulation test method of claim 7, further comprising: a moistener;
the adjusting step further includes:
and spraying a reagent to the joint of the iron cap electrode and the iron cap according to a preset spraying period through the humidifier.
9. The ground insulator electrode performance simulation test method of claim 7, wherein the preset tension value is in a range of 8kN to 10 kN.
10. The ground wire insulator electrode performance simulation test method of claim 7, wherein the maximum tensile force of the elastic member is 5N and the minimum tensile force is 0N in the preset telescopic period.
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| CN202110832461.5A CN113432860B (en) | 2021-07-22 | 2021-07-22 | Ground wire insulator electrode performance simulation test device and method |
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| CN202110832461.5A CN113432860B (en) | 2021-07-22 | 2021-07-22 | Ground wire insulator electrode performance simulation test device and method |
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| CN113432860B true CN113432860B (en) | 2023-05-16 |
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| JPH06215655A (en) * | 1993-01-13 | 1994-08-05 | Ngk Insulators Ltd | Gap adjustment in lightning arresting insulator device and gap gauge used in it |
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| CN212059669U (en) * | 2020-05-28 | 2020-12-01 | 大莲电瓷（福建）有限公司 | Iron cap tensile test device |
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2021
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| JPH06215655A (en) * | 1993-01-13 | 1994-08-05 | Ngk Insulators Ltd | Gap adjustment in lightning arresting insulator device and gap gauge used in it |
| CN203587740U (en) * | 2013-09-18 | 2014-05-07 | 国家电网公司 | Insulator chain testing device |
| CN207396184U (en) * | 2017-09-20 | 2018-05-22 | 醴陵市高力特电瓷电器有限公司 | Insulator tension testing machine |
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| CN212059669U (en) * | 2020-05-28 | 2020-12-01 | 大莲电瓷（福建）有限公司 | Iron cap tensile test device |
| CN112485619A (en) * | 2020-12-09 | 2021-03-12 | 国网辽宁省电力有限公司丹东供电公司 | Hierarchical multifunctional line insulator testing device and method |
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