CN114624532A - Stray current corrosion resistant power grid detection device - Google Patents
Stray current corrosion resistant power grid detection device Download PDFInfo
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- CN114624532A CN114624532A CN202210247392.6A CN202210247392A CN114624532A CN 114624532 A CN114624532 A CN 114624532A CN 202210247392 A CN202210247392 A CN 202210247392A CN 114624532 A CN114624532 A CN 114624532A
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- power grid
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- 238000001514 detection method Methods 0.000 title claims abstract description 65
- 230000007797 corrosion Effects 0.000 title claims abstract description 21
- 238000005260 corrosion Methods 0.000 title claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 38
- 230000003313 weakening effect Effects 0.000 claims abstract description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- General Physics & Mathematics (AREA)
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Abstract
The invention relates to the technical field of electric power detection, in particular to a stray current corrosion resistant power grid detection device. The device specifically comprises a detection box and a detector in the detection box; wherein still include: the detection box is fixedly arranged inside the protection base; the connecting device is used for weakening the influence of stray current when the cable is connected with the detector in the detection box and is arranged on the protective base; the collecting device is used for collecting stray current on the detection box, is arranged on one side of the outer wall of the detection box and is electrically connected with the controller; the controller is arranged in the detection box and used for judging whether stray current collected by the collecting device exceeds a preset threshold value or not, judging whether the monitored stray current leakage condition seriously exceeds the standard or not through the overflow time difference of the stray current, and if the stray current on the surface of the detection equipment exceeds the standard, drainage needs to be carried out on the stray current in time to ensure normal operation of the equipment.
Description
Technical Field
The invention relates to the technical field of electric power detection, in particular to a stray current corrosion resistant power grid detection device.
Background
The subway adopts direct current to pull the power supply mode, can produce stray current's influence between the rail ground, stray current can produce stronger corrosion to metal object along the line, bring huge security threat for the grounded metal especially metal pipeline along the line, so need to restrain the stray current along the subway line urgently, and want the distribution law of analysis subway stray current along the subway line, just detect after need overcoming the stray current along the subway line, the analysis stray current is to the corrosion mechanism of near metal object, in order to guarantee the normal of electric wire netting data, current electric wire netting detection device all is the connecting cable usually to detect, it receives stray current's environmental impact factor great, corrode check out test set easily, this can lead to check out test set detection error big in the past, the security is lower.
Disclosure of Invention
Technical problem to be solved
The invention aims to overcome the defects of the prior art, and provides a power grid detection device resistant to stray current corrosion, which solves the problems.
(II) technical scheme
The technical scheme of the invention is as follows: a stray current corrosion resistant power grid detection device comprises a detection box and a detector in the detection box; wherein still include:
a protective upper shell;
the protective base is spirally connected with the protective upper shell, and the detection box is fixedly arranged in the protective base;
the connecting device is used for weakening the influence of stray current when the cable is connected with the detector in the detection box and is arranged on the protective base;
the collecting device is used for collecting stray current on the detection box, is arranged on one side of the outer wall of the detection box and is electrically connected with the controller;
the controller is arranged in the detection box and used for judging whether the stray current collected by the collecting device exceeds a preset threshold value or not, and if the stray current exceeds the preset threshold value, the controller is linked with the warning device to act so as to early warn inspectors;
and the warning device is used for warning the patrol personnel after the stray current exceeds a threshold value.
As a further improvement of the technical scheme, the connecting device comprises a cable pressing inlet, a clamping disc, a grounding ring and a connecting column, the cable pressing inlet and the clamping disc are arranged in the protective base, the grounding ring led into the ground is arranged on the inner wall of the cable pressing inlet, so that partial current can be conveniently led into the ground through the grounding ring after the cable is connected, the direct influence on the detection equipment is avoided, the connecting column is arranged in the protective base and used for connecting the cable penetrating into the protective base, and the other end of the connecting column is connected to a collector in the detection box.
As a further improvement of the technical scheme of the invention, the connecting column is electrically connected with the collector through the conducting wire slot and the wire end, wherein the conducting wire slot is arranged in the protective base and penetrates through the bottom of the detection box to be connected to the wire end of the detection box, and the wire end is electrically connected with the collector.
As a further improvement of the technical scheme of the invention, the acquisition device is preferably a charge sensor, the charge sensor is electrically connected with the level input end of the controller, and the charge sensor can be used in combination with a voltage sensor.
As a further improvement of the technical scheme of the invention, a display screen for information lookup is arranged at the top of the detection box, the display screen is electrically connected with the detector, and the display screen is arranged right below the PMMA circular plate.
As a further improvement of the technical scheme of the invention, the warning device comprises an indicator, the indicator is fixedly arranged at the top of one side of the detection box through a spiral binding post, the top of the indicator is hermetically sleeved with a transparent protective cover, and the transparent protective cover is preferably made of a high-light-transmittance material.
As a further improvement of the technical scheme of the invention, the controller can preferably adopt an STM32 singlechip.
As a further improvement of the technical scheme of the invention, a visual PMMA circular plate is arranged at the top of the protective upper shell; a light outlet cover for leading out light of the indicator is arranged on one side of the protective upper shell, so that abnormal reminding of stray current is facilitated.
As a further improvement of the technical scheme of the invention, the protective base is provided with a plurality of preset locking holes for locking and fixing.
As a further improvement of the technical scheme of the invention, the side wall of the protective base is provided with a plurality of layers of reflective sleeves, so that the protective base is convenient to identify and warn at night.
As a further improvement of the technical scheme of the invention, in particular, the invention can also be connected with a drainage cabinet, so that the collected stray current can be conveniently discharged through the drainage cabinet, and the corrosion influence of the stray current on equipment is reduced.
The invention not only can directly avoid the detection equipment from being influenced by the corrosion of the subway stray current and weaken the metal corrosion of the stray current to the equipment, but also can provide a stray current monitoring system for monitoring the surface of the protected detection equipment on line.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic diagram of the stray current trend of the present invention;
reference numerals are as follows: the device comprises a protective upper shell 1, a PMMA circular plate 101, a light-emitting cover 102, a light-reflecting sleeve 103, a protective base 2, a preset locking hole 201, a cable pressure inlet 202, a clamping disc 203, a grounding ring 204, a connecting column 3, a conducting wire slot 301, a wire end 302, a collector 303, a detection box 4, a charge sensor 401, a display screen 402, an indicator 403, a transparent protective cover 4031, a spiral binding post 4032, a controller 404 and a detector 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
In this embodiment, the protection base 2 is provided with a plurality of preset locking holes 201 for locking and fixing the invention; the lateral wall of the protective base 2 is provided with a plurality of layers of reflective sleeves 103, so that the reflective sleeves can be recognized and warned at night conveniently.
In this embodiment, connecting device includes that cable pressure inlet 202, clamping disk 203, ground ring 204 and spliced pole 3 are equipped with cable pressure inlet 202 and clamping disk 203 in the protection base 2, cable pressure inlet 202 inner wall is equipped with leading-in to secret ground ring 204, makes things convenient for the cable to pass through the leading-in underground of ground ring with partial current after inserting, avoids direct influence check out test set, and spliced pole 3 sets up in protection base 2 for connect and penetrate to the cable in the protection base 2, the 3 other ends of spliced pole are connected to the collector 303 in the detection case 4, furtherly, wherein spliced pole 3 is connected with collector 303 through switching on wire casing 301 and line end 302 electricity, and wherein switching on wire casing 301 and locate inside the protection base 2, run through the line end 302 that detection case 4 bottom is connected to detection case 4, and line end 302 is connected with collector 303 electricity.
In this embodiment, a display screen 402 for information review is disposed on the top of the detection box 4, the display screen 402 is electrically connected to the detector 5, and the display screen 402 is disposed right below the PMMA circular plate 101.
In this embodiment, the collecting device is preferably a charge sensor 401, the charge sensor 401 is electrically connected to the level input terminal of the controller 404, and the charge sensor 401 can be used in combination with a voltage sensor.
In this embodiment, the warning device includes an indicator 403, the indicator 403 is fixedly mounted on the top of one side of the detection box 4 through a screw terminal 4032, a transparent protective cover 4031 is hermetically sealed on the top of the indicator 403, and the transparent protective cover 4031 is preferably made of a high-light-transmittance material.
When in engineering installation, the device is locked on an earth surface installation seat through a preset locking hole 201, a cable penetrates into the protection chassis 2 through the cable pressure inlet 202, the diameter of the cable pressure inlet 202 is a passage which is gradually reduced, at the moment, the grounding ring 204 is in contact with the surface of the cable, most of stray current is conveniently led into the ground, part of tiny stray current can be collected by the charge sensor 401 of the detection box, when enough charges are accumulated to form potential difference, a level signal is transmitted to the controller 404, the controller 404 is linked with the indicator 3 to work, an early warning signal is sent out and linked with a central control room connected with the controller 404, when an inspector arrives and checks and releases the accumulated stray current (as shown in figure 3), the corrosion influence of the stray current on power grid detection equipment is reduced, as a further improvement of the invention, the invention can also be connected with a drainage cabinet, and the collected stray current can be conveniently discharged through the drainage cabinet, reduce the corrosive influence of the stray current on the equipment.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A stray current corrosion resistant power grid detection device comprises a detection box (4) and a detector (5) in the detection box (4); it is characterized by also comprising:
a protective upper shell (1);
the protective base (2) is in spiral connection with the protective upper shell (1), and the detection box (4) is fixedly arranged in the protective base (2);
the connecting device is used for weakening the influence of stray current when a cable is connected with the detector (5) in the detection box (4), and is arranged on the protective base (2);
the collecting device is used for collecting stray current on the detection box (4), is arranged on one side of the outer wall of the detection box (4), and is electrically connected with the controller (404);
the controller (404) is arranged in the detection box (4) and used for judging whether the stray current collected by the collecting device exceeds a preset threshold value or not, and if the stray current exceeds the preset threshold value, the controller is linked with the warning device to act so as to early warn inspectors;
and the warning device is used for warning the patrol personnel after the stray current exceeds a threshold value.
2. A stray current corrosion resistant power grid test apparatus as claimed in claim 1, wherein: connecting device includes that the cable presses entry (202), presss from both sides tight dish (203), ground ring (204) and spliced pole (3), is equipped with cable pressure entry (202) and presss from both sides tight dish (203) in protection base (2), cable pressure entry (202) inner wall is equipped with leading-in to underground ground ring (204), and spliced pole (3) set up in protection base (2), spliced pole (3) other end is connected to collector (303) in detection case (4).
3. A stray current corrosion resistant power grid test apparatus as claimed in claim 1, wherein: the connecting column (3) is electrically connected with the collector (303) through a conducting wire groove (301) and a wire end (302), wherein the conducting wire groove (301) is arranged inside the protective base (2), the wire end (302) penetrating through the bottom of the detection box (4) and connected to the detection box (4) is electrically connected with the collector (303).
4. A stray current corrosion resistant power grid test apparatus as claimed in claim 1, wherein: the acquisition device is preferably a charge sensor (401), and the charge sensor (401) is electrically connected with a level input end of a controller (404).
5. A stray current corrosion resistant power grid detection device according to claim 1, wherein: the top of the detection box (4) is provided with a display screen (402), the display screen (402) is electrically connected with the detector (5), and the display screen (402) is arranged under the PMMA round plate (101).
6. A stray current corrosion resistant power grid test apparatus as claimed in claim 1, wherein: the warning device comprises an indicator (403), and the indicator (403) is fixedly installed on the top of one side of the detection box (4) through a screw terminal (4032).
7. A stray current corrosion resistant power grid detection device according to claim 6, wherein: the top of the indicator (403) is hermetically sleeved with a transparent protective cover (4031).
8. A stray current corrosion resistant power grid detection device according to claim 7, wherein: the transparent protective cover (4031) is preferably made of high-light-transmission material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247392.6A CN114624532A (en) | 2022-03-14 | 2022-03-14 | Stray current corrosion resistant power grid detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247392.6A CN114624532A (en) | 2022-03-14 | 2022-03-14 | Stray current corrosion resistant power grid detection device |
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| CN114624532A true CN114624532A (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210247392.6A Pending CN114624532A (en) | 2022-03-14 | 2022-03-14 | Stray current corrosion resistant power grid detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115982914A (en) * | 2023-02-16 | 2023-04-18 | 华东交通大学 | Grounding grid corrosion assessment method and system based on elastic grid theory |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115982914A (en) * | 2023-02-16 | 2023-04-18 | 华东交通大学 | Grounding grid corrosion assessment method and system based on elastic grid theory |
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