CN103822969B - A kind of post insulator vibration acoustic pick-up unit with sound and light alarm - Google Patents
A kind of post insulator vibration acoustic pick-up unit with sound and light alarm Download PDFInfo
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- CN103822969B CN103822969B CN201410017904.5A CN201410017904A CN103822969B CN 103822969 B CN103822969 B CN 103822969B CN 201410017904 A CN201410017904 A CN 201410017904A CN 103822969 B CN103822969 B CN 103822969B
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Abstract
A kind of post insulator vibration acoustic pick-up unit with sound and light alarm, comprise shell (2) and be positioned at the taper detection contact (1) at top, the insulating bar (18) of bottom, the acoustical signal launching and receiving module (3) being positioned at housing, data processing module (4), intensity judge module (5), resistance measuring module (13), data memory module (15), the power module (12) that are connected with detection contact (1), and be located at the normal pilot lamp of contact (11) on shell (2) and contact abnormal pilot lamp (10).The present invention is directed to the problem that post insulator vibration acoustic detects, namely can not visual display detecting result in time, can not the intuitive judgment contact whether problem such as good, provide one and can tell whether qualified testing staff's testing result is by sound and pilot lamp and contact the whether problem such as good.The device that this invention relates to is more directly perceived, intelligent, has and improves support insulator Site Detection accuracy and efficiency remarkable advantage.
Description
Technical field
The present invention relates to a kind of post insulator vibration acoustic pick-up unit, particularly a kind of post insulator vibration acoustic pick-up unit with sound and light alarm, and the post insulator vibration acoustic being applicable to each electric pressure detects.
Background technology
Support insulator in power equipment is as structural support, the impact be in operation due to environmental baseline and condition of work, constantly be subject to the effect of electric field, cyclic thermal stres, physical shock and environmental attack, its mechanical property can decline gradually with working time, occurs to lose efficacy to cause the risk of accident constantly to rise.The accident that support insulator mechanical failure causes all shows as paroxysmal damage of facilities, usually causes huge economic loss, and threatens the stable operation of electrical network.The decline of support insulator mechanical property is the process of a gradual change, and due to unevenness that is ceramic and mucilage binding cement structures self, between Different Individual, difference is obvious.If find the change of support insulator mechanical property not in time, often because mechanical failure causes equipment breakdown.
It is the key ensureing its safe operation that support insulator has enough physical strengths.Only there is the environment sensitive of crack defect for support insulator privileged site in support insulator detection means conventional at present, belong to the detection method towards specified defect, the defect that support insulator may occur can not be characterized comprehensively, more can not characterize the physical strength of support insulator.In traditional support insulator detection method, supersonic detection method is only effective at the particular case of flange position generation crack defect to detecting support insulator porcelain vase; The impact of UV detect climate is large, and only effective to the surface crack near the flange of high-pressure side; Infrared detection by weather and solar radiation larger while, also lack corresponding relation between support insulator defect and thermal effect.Above method all cannot detect the problems of mechanical strength because mucilage binding interfacial age gets loose, the aging factor such as to break of mucilage binding agent causes, and more can not reflect the overall mechanical strength situation of support insulator, the validity of its testing result is more weak.
Due to the fragility of pottery-cement structures itself, under the prerequisite not damaging support insulator, cannot directly test its physical strength.Therefore, characterizing its physical strength by detecting the physical quantity directly related with support insulator physical strength, is the unique feasible means of Non-Destructive Testing support insulator physical strength.This type of detection method ignores the material elements causing support insulator physical strength to decline, and directly reflects its Strength Changes situation, relative to the detection means of traditional facing defects, more directly can characterize the health status of support insulator.
At present, the domestic method developed for support insulator intensity detection, and develop post insulator vibration acoustic pick-up unit.Utilize this device to detect the post insulator period of the day from 11 p.m. to 1 a.m, detection contact be against bottom insulator flange, the acoustic signal that contact sends is at interior insulator through reflection, and reflected signal passes to computing machine and carries out software analysis process.Technician, according to reflected signal characteristic, analyzes intensity and the inherent vice of support insulator.
But there is the problem of two aspects in existing post insulator vibration acoustic pick-up unit: 1) testing staff cannot judge that whether the contact of detection contact and support insulator metal flange is good, and loose contact easily occurs noise waveform, and interference judges; 2) detecting the data obtained is stored in equipment, can not show in time and consult, and at Computer display, can only delay testing staff and judge testing result in time.
For above-mentioned two problems, need to invent and a kind ofly integrated can judge intuitively, rapidly whether detection contact and support insulator metal flange contact good and contacts the device of result whether exception, to improve efficiency and the accuracy of post insulator vibration acoustic detection.
Summary of the invention
This goal of the invention is: what exist for current post insulator vibration acoustic pick-up unit can not judge whether detection contact and metal flange contact well and cannot check the problem of testing result in time, invent and a kind ofly integrated can judge intuitively, rapidly whether detection contact and support insulator metal flange contact good and contacts the whether abnormal device of result, to improve efficiency and the accuracy of post insulator vibration acoustic detection.
The present invention is achieved through the following technical solutions:
A kind of post insulator vibration acoustic pick-up unit with sound and light alarm, feature of the present invention is, structure comprises the shell of rectangular parallelepiped, be located at a pair taper detection contact of cover top portion and the insulating bar of bottom, be positioned at the acoustical signal launching and receiving shift knob on insulating bar and resistance measurement shift knob; The acoustical signal launching and receiving module being positioned at housing be connected with detection contact and resistance measuring module, and the normal pilot lamp of the contact being positioned at outer casing bottom be connected with resistance measuring module with contact abnormal pilot lamp; With data memory module and the data processing module of acoustical signal launching and receiving model calling, the intensity judge module be connected with data processing module, and be connected with intensity judge module be positioned at the abnormal pilot lamp of the normal pilot lamp of outer casing bottom intensity and intensity; Be located at the loudspeaker of shell side data-interface and respective side; Be provided with power module respectively with acoustical signal launching and receiving module, data processing module, data memory module, resistance measuring module, intensity judge module, the normal pilot lamp of intensity, the abnormal pilot lamp of intensity, contact normal pilot lamp, the abnormal pilot lamp of contact, loudspeaker be connected.
Acoustical signal launching and receiving module, data processing module, data memory module, resistance measuring module, intensity judge module and power module that the present invention is arranged in order all are positioned at housing.
The present invention is provided with two jacks at outer casing bottom, and jack is contact resistance measurement module and acoustical signal launching and receiving module respectively.
Insulating bar of the present invention is connected with shell by screw thread; Insulating bar is hollow-core construction, and inside is provided with two wires, the attachment plug of wire one end, and the other end connects acoustical signal launching and receiving shift knob and resistance measurement shift knob respectively.
Acoustical signal launching and receiving shift knob of the present invention and resistance measurement shift knob are positioned at the far-end of insulating bar away from screw thread.
Detection contact of the present invention, shell are coated with insulating material, are also provided with layer of metal screen layer in the enclosure.With the electromagnetic interference (EMI) that shield electromagnetic interference produces enclosure interior module.
The key issue that the present invention solves: 1) whether reflection detection contact directly perceived contacts well with support insulator metal flange, improves the accuracy detected; 2) whether reflection testing result directly perceived is qualified, improves the efficiency of detection.
Mechanism of the present invention is mainly according to the shortcoming of current post insulator vibration acoustic checkout equipment, reasonable integrated acoustical signal launching and receiving module, data processing module, data memory module, resistance measuring module, intensity judge module and power module, form the checkout equipment with sound and photoelectric alarm.
Beneficial outcomes of the present invention: by sound and pilot lamp, design invention one can be told whether qualified testing staff's testing result is and contact the whether problem such as good.The device that this invention relates to is more directly perceived, intelligent, has the beneficial outcomes improving support insulator Site Detection accuracy and efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is apparatus function module and overhaul flow chart.
Fig. 3 is insulating bar schematic diagram.
Embodiment
See Fig. 1, Fig. 2, Fig. 3, a kind of post insulator vibration acoustic pick-up unit with sound and light alarm, feature of the present invention is, structure comprises the shell 2 of rectangular parallelepiped, is located at a pair taper detection contact 1 at shell 2 top and the insulating bar 18 of bottom, is positioned at the acoustical signal launching and receiving shift knob 16 on insulating bar and resistance measurement shift knob 17; The acoustical signal launching and receiving module 3 being positioned at housing be connected with detection contact 1 and resistance measuring module 13, and be connected with resistance measuring module 13 be positioned at the normal pilot lamp of contact 11 bottom shell 2 and contact abnormal pilot lamp 10; The data memory module 15 be connected with acoustical signal launching and receiving module 3 and data processing module 4, the intensity judge module 5 be connected with data processing module 4, and be connected with intensity judge module 5 be positioned at the abnormal pilot lamp 8 of the normal pilot lamp 9 of shell 2 bottom strength and intensity; Be located at the loudspeaker 6 of shell 2 side data-interface 14 and respective side; Be provided with power module 12 respectively with acoustical signal launching and receiving module 3, data processing module 4, data memory module 15, resistance measuring module 13, intensity judge module 5, the normal pilot lamp of intensity 9, the abnormal pilot lamp 8 of intensity, contact normal pilot lamp 11, contact abnormal pilot lamp 10, loudspeaker 6 is connected.
Acoustical signal launching and receiving module 3, data processing module 4, data memory module 15, resistance measuring module 13, intensity judge module 5 and power module 12 that the present invention is arranged in order all are positioned at housing.
The present invention is provided with two jacks bottom shell 2, and jack is contact resistance measurement module 13 and acoustical signal launching and receiving module 3 respectively.
Insulating bar 18 of the present invention is connected with shell 2 by screw thread; Insulating bar 18 is hollow-core construction, and inside is provided with two wires, the attachment plug of wire one end, and the other end connects acoustical signal launching and receiving shift knob 16 and resistance measurement shift knob 17 respectively.
Acoustical signal launching and receiving shift knob 16 of the present invention and resistance measurement shift knob 17 are positioned at the far-end of insulating bar 18 away from screw thread.
Detection contact 1 of the present invention, shell 2 are coated with insulating material, in shell 2, be also provided with layer of metal screen layer 19.With the electromagnetic interference (EMI) that shield electromagnetic interference produces enclosure interior module.
As shown in Figure 2, the concrete operations of apparatus of the present invention and function, step comprises:
1. insulating bar 18 is arranged on device housings 2 by screw thread.According to support insulator height to be detected, select the insulating bar of appropriate length;
2. power-on, power module 12 is started working, and power light 7 is lighted;
3. detection contact 1 is propped up post insulator metal flange, press resistance measurement shift knob 17;
4. resistance measuring module 13 is started working, if resistance is abnormal, then contacts abnormal pilot lamp 10 and lights, loudspeaker 6 ring;
5. resistance is normal, then contact abnormal pilot lamp 11 and light, and can start to measure;
6. press acoustical signal launching and receiving button 16, acoustical signal launching and receiving module 3 is started working;
7. data return data processing module 4, and be stored in data memory module 15;
8. intensity judge module 5 is started working, and judge that whether testing result insulator strength is normal, if intensity is abnormal, pilot lamp 8 is lighted, loudspeaker 6 ring;
9., if testing result is normal, the normal pilot lamp 9 of intensity is lighted;
10. this time detect end, can start to detect next time; All detections terminate, from data-interface 14 copy detection data.
Claims (6)
1. the post insulator vibration acoustic pick-up unit with sound and light alarm, it is characterized in that, structure comprises the shell (2) of rectangular parallelepiped, be located at a pair taper detection contact (1) at shell (2) top and the insulating bar (18) of bottom, be positioned at the acoustical signal launching and receiving shift knob (16) on insulating bar and resistance measurement shift knob (17); The acoustical signal launching and receiving module (3) being positioned at housing be connected with detection contact (1) and resistance measuring module (13), and be connected with resistance measuring module (13) be positioned at shell (2) bottom the normal pilot lamp of contact (11) with contact abnormal pilot lamp (10); The data memory module (15) be connected with acoustical signal launching and receiving module (3) and data processing module (4), the intensity judge module (5) be connected with data processing module (4), and be connected with intensity judge module (5) be positioned at the abnormal pilot lamp (8) of the normal pilot lamp of shell (2) bottom strength (9) and intensity; Be located at the loudspeaker (6) of shell (2) side data-interface (14) and respective side; Be provided with power module (12) respectively with acoustical signal launching and receiving module (3), data processing module (4), data memory module (15), resistance measuring module (13), intensity judge module (5), the normal pilot lamp of intensity (9), the abnormal pilot lamp (8) of intensity, contact normal pilot lamp (11), contact abnormal pilot lamp (10), loudspeaker (6) is connected.
2. a kind of post insulator vibration acoustic pick-up unit with sound and light alarm according to claim 1, it is characterized in that, the acoustical signal launching and receiving module (3) be arranged in order, data processing module (4), data memory module (15), resistance measuring module (13), intensity judge module (5) and power module (12) are all positioned at housing.
3. a kind of post insulator vibration acoustic pick-up unit with sound and light alarm according to claim 1, it is characterized in that, be provided with two jacks in shell (2) bottom, jack is contact resistance measurement module (13) and acoustical signal launching and receiving module (3) respectively.
4. a kind of post insulator vibration acoustic pick-up unit with sound and light alarm according to claim 1, it is characterized in that, insulating bar (18) is connected with shell (2) by screw thread; Insulating bar (18) is hollow-core construction, and inside is provided with two wires, the attachment plug of wire one end, and the other end connects acoustical signal launching and receiving shift knob (16) and resistance measurement shift knob (17) respectively.
5. a kind of post insulator vibration acoustic pick-up unit with sound and light alarm according to claim 4, it is characterized in that, acoustical signal launching and receiving shift knob (16) and resistance measurement shift knob (17) are positioned at the far-end of insulating bar (18) away from screw thread.
6. a kind of post insulator vibration acoustic pick-up unit with sound and light alarm according to claim 1, it is characterized in that, detection contact (1), shell (2) are coated with insulating material, are also provided with layer of metal screen layer (19) in shell (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410017904.5A CN103822969B (en) | 2014-01-15 | 2014-01-15 | A kind of post insulator vibration acoustic pick-up unit with sound and light alarm |
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| CN201410017904.5A CN103822969B (en) | 2014-01-15 | 2014-01-15 | A kind of post insulator vibration acoustic pick-up unit with sound and light alarm |
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| CN103822969B true CN103822969B (en) | 2016-04-20 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104502458A (en) * | 2015-01-12 | 2015-04-08 | 国家电网公司 | Support ceramic insulator defect detector |
| CN104897776A (en) * | 2015-06-16 | 2015-09-09 | 国网山东省电力公司聊城供电公司 | Vibration acoustic wave based charged flaw detection device and method for porcelain post insulator |
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| CN102955003A (en) * | 2012-11-15 | 2013-03-06 | 云南电力试验研究院（集团）有限公司电力研究院 | Novel post insulator vibration detection device |
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| JPH03272459A (en) * | 1990-03-22 | 1991-12-04 | Ngk Insulators Ltd | Deterioration detector of insulator |
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