CN215572799U - GIS equipment telescopic joint displacement alarm device - Google Patents
GIS equipment telescopic joint displacement alarm device Download PDFInfo
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- CN215572799U CN215572799U CN202121863743.3U CN202121863743U CN215572799U CN 215572799 U CN215572799 U CN 215572799U CN 202121863743 U CN202121863743 U CN 202121863743U CN 215572799 U CN215572799 U CN 215572799U
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 55
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000012423 maintenance Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
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- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a GIS equipment telescopic joint displacement alarm device, which comprises a pair of GIS equipment bodies, wherein a telescopic joint is arranged between the pair of GIS equipment bodies; a displacement sensor is arranged between the equipment flanges; a displacement scale measuring mechanism is arranged between the equipment flanges; the lower end of the GIS equipment body is provided with an equipment base; the displacement monitoring alarm host is connected with the operation and maintenance system through an electric signal; the displacement scale measuring mechanism comprises a steel ruler and a groove box, and a pointer is arranged on the groove box. Through the vertical length according to GIS equipment telescopic joint, the scale scope and the length of scale are confirmed to the annual flexible volume, when GIS equipment telescopic joint takes place the displacement along with temperature variation, measure the scale and also take place the displacement change thereupon, the change situation through the scale can monitor GIS equipment telescopic joint behavior at any time, the fortune dimension monitoring ability of GIS equipment telescopic joint has been strengthened, let fortune dimension personnel master the displacement condition of GIS telescopic joint more accurately, also can provide reliable operation information for the state of equipment is overhauld simultaneously, prevent the occurence of failure of GIS equipment.
Description
Technical Field
The utility model relates to the technical field of transformer substation monitoring, in particular to a GIS equipment telescopic joint displacement alarm device.
Background
With the development of science and technology, GIS equipment relies on its area of occupation little in the selection of transformer substation equipment, and advantages such as maintenance cycle length, easy operation, reliability height, antifouling performance number replace conventional AIS equipment gradually and become the mainstream of transformer substation development. In the operation process, due to thermal barrier shrinkage caused by environmental temperature change, equipment thermal effect and the like, in order to relieve the GIS equipment displacement problem caused by thermal barrier shrinkage stress, an expansion joint is arranged at the corresponding position of the GIS equipment. The GIS telescopic joint changes in displacement in the operation process, and reflects the working conditions and the operation conditions of GIS equipment. At present, the operation and maintenance monitoring work of a GIS expansion joint cannot keep pace with the updating of equipment, and in recent years, a national grid company system has faults and abnormity caused by the change of environmental temperature of a plurality of outdoor GIS equipment, so that the safe and reliable operation of a power grid and the equipment is seriously threatened.
The following description takes a soothing transformer substation as an example (the annual temperature difference in the Liaoning area where the soothing transformer substation is located exceeds 85 degrees, and the annual maximum daily temperature difference is about 28 degrees):
firstly, relevant parameters of GIS operation of a power station: the temperature range is-25 to 30 ℃; the installation temperature is-5-20 ℃; the maximum daily temperature difference is 25K; the temperature rise of sunlight is 15K; the temperature rise of the through flow is 20K; the linear expansion coefficient a1 of the bus tube is 23.9X 10-6 (aluminum tube).
And calculating the temperature change range. According to the parameters, the annual temperature variation is calculated to be (30+273.15) ° C- (273.15-5) ° C +15 ℃ +20 ℃ + 70 ℃, and T2 is (273.15-25) ° C- (273.15+20) ° C-45 ℃; the daily temperature change T3 is 25 ℃ +15 ℃ +25 ℃ + 65 ℃.
And thirdly, calculating the expansion amount of the corrugated pipe. When the bus length L is 30m, the annual stretch amount S1 ═ L × a1 × (T1-T2) ═ 82.5mm, and the daily stretch amount S2 ═ L × a1 × T3 ═ 46.6 mm. By taking the size as a reference, whether the size change meets the operation requirement or not is judged in the GIS equipment telescopic operation and maintenance monitoring, so that reliable operation information is provided for the equipment state maintenance.
Therefore, the monitoring of the GIS equipment expansion joint becomes an urgent problem to be solved in operation and maintenance work, and the safe and stable operation of the equipment can be ensured only by accurately and timely mastering the change condition of the GIS equipment expansion joint.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a GIS equipment telescopic joint displacement alarm device to prevent accidents of GIS equipment.
In order to achieve the purpose, the utility model provides the following technical scheme: a GIS equipment telescopic joint displacement alarm device comprises a pair of GIS equipment bodies, a telescopic joint is arranged between the pair of GIS equipment bodies, an equipment flange is arranged between the GIS equipment bodies and the telescopic joint, and an equipment telescopic joint pull rod is arranged between the equipment flanges; a displacement sensor is arranged between the equipment flanges, and the displacement sensor is connected with a displacement monitoring alarm host through an electric signal; a displacement scale measuring mechanism is arranged between the equipment flanges; and an equipment base is arranged at the lower end of the GIS equipment body.
Preferably, the displacement monitoring alarm host is connected with the operation and maintenance system through an electric signal.
Preferably, the displacement scale measuring mechanism comprises a steel ruler and a groove box, the steel ruler is installed on a flange of equipment on one side, the groove box is installed on a flange of equipment on the other side, and the steel ruler is inserted in the groove box; and a pointer is arranged on the groove box.
Preferably, the number of the telescopic joint pull rods of the equipment is 3-6.
Preferably, the number of the device telescopic joint pull rods is 4, and the 4 device telescopic joint pull rods are distributed at four corners of the device flange.
Preferably, expansion joint side nuts are arranged on two sides of the equipment flange and are in threaded connection with an equipment expansion joint pull rod; and a locking nut gasket is arranged between the equipment flange and the expansion joint side nut.
Compared with the prior art, the utility model has the beneficial effects that:
the scale range and the length of the scale are determined according to the vertical length and the annual expansion amount of the GIS equipment expansion joint, when the GIS equipment expansion joint displaces along with the temperature change, the measurement scale also displaces along with the displacement change, and the running condition of the GIS equipment expansion joint can be monitored at any time through the change condition of the scale of the scale, so that the operation and maintenance monitoring capability of the GIS equipment expansion joint is enhanced, operation and maintenance personnel can more accurately master the displacement condition of the GIS expansion joint, reliable running information can be provided for the state maintenance of the equipment, and the occurrence of accidents of the GIS equipment is prevented.
Drawings
Fig. 1 is a schematic structural diagram of a GIS equipment telescopic joint displacement alarm device of the utility model.
1. A GIS device body; 2. an equipment flange; 3. an expansion joint; 4. a device telescopic link pull rod; 5. an equipment base; 6. a displacement sensor; 7. a displacement scale measuring mechanism; 8. a displacement monitoring alarm host; 9. and (5) an operation and maintenance system.
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.
Referring to fig. 1, the present invention provides a technical solution: a GIS equipment telescopic joint displacement alarm device comprises a pair of GIS equipment bodies 1, a telescopic joint 3 is arranged between the pair of GIS equipment bodies 1, an equipment flange 2 is arranged between the GIS equipment bodies 1 and the telescopic joint 3, and an equipment telescopic joint pull rod 4 is arranged between the two equipment flanges 2; be equipped with displacement sensor 6 between two equipment flanges 2, and the 6 signal connection displacement monitoring alarm host 8 of displacement sensor, 8 signal connection fortune dimension system 9 of displacement monitoring alarm host, the convenient fortune dimension personnel of reminding in time of inspection handle.
A displacement scale measuring mechanism 7 is arranged between the two equipment flanges 2, so that maintenance personnel can conveniently and visually observe the displacement condition between the equipment flanges 2; the lower extreme of GIS equipment body 1 is equipped with equipment base 5, supports GIS equipment body 1.
The displacement scale measuring mechanism 7 comprises a steel ruler and a groove box, the steel ruler is installed on the equipment flange 2 on one side, the groove box is installed on the equipment flange 2 on the other side, and the steel ruler is inserted in the groove box; the groove box is provided with a pointer. The pointer indicates corresponding scales on the steel ruler according to the GIS deformation curve, and the displacement graduated scale 7 serves as an auxiliary reference position of the GIS telescopic joint displacement monitoring alarm device and provides visual telescopic amount data for operation and maintenance patrol.
The number of the equipment telescopic joint pull rods is 3-6, the preferred number is 4, and the 4 equipment telescopic joint pull rods 4 are distributed at four corners of the equipment flange 2. Expansion joint side nuts are arranged on two sides of the equipment flange 2 and are in threaded connection with an equipment expansion joint pull rod 4; a nut gasket for locking is arranged between the equipment flange 2 and the telescopic joint side nut, so that the installation stability of the telescopic joint pull rod 4 of the equipment is ensured.
The working principle is as follows: adopt displacement sensor 6 to carry out distance measurement to equipment flange 2, do not receive external electromagnetic signal interference under the complicated electromagnetic environment of transformer substation, the interference killing feature is strong, and measurement accuracy is high, reach 1/10 millimeter level, it is often more accurate with the degree of accuracy of millimeter measurement than the mechanical ruler to telescopic joint variation, simultaneously with personnel at any time or regularly observe the record displacement situation of change, the real-time is good, all displacement variation are whole to be recorded, store in displacement monitoring alarm host computer 8, can look over the displacement change numerical value at any time, operating personnel's intensity of labour has greatly been alleviateed. The displacement monitoring alarm host 8 has an alarm function, and when the expansion amount of the GIS equipment expansion joint exceeds a specified value, the host sends an alarm signal to the operation and maintenance system 9 to remind operation and maintenance personnel to check and process in time.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a GIS equipment telescopic joint displacement alarm device which characterized in that: the GIS equipment comprises a pair of GIS equipment bodies (1), wherein an expansion joint (3) is arranged between the pair of GIS equipment bodies (1), an equipment flange (2) is arranged between the GIS equipment bodies (1) and the expansion joint (3), and an equipment expansion joint pull rod (4) is arranged between the equipment flanges (2); a displacement sensor (6) is arranged between the equipment flanges (2), and the displacement sensor (6) is connected with a displacement monitoring alarm host (8) through an electric signal; a displacement scale measuring mechanism (7) is arranged between the equipment flanges (2); the lower extreme of GIS equipment body (1) is equipped with equipment base (5).
2. The GIS device telescopic joint displacement alarm device of claim 1, characterized in that: and the displacement monitoring alarm host (8) is connected with the operation and maintenance system (9) through an electric signal.
3. The GIS device telescopic joint displacement alarm device of claim 1, characterized in that: the displacement scale measuring mechanism (7) comprises a steel ruler and a groove box, the steel ruler is installed on the equipment flange (2) on one side, the groove box is installed on the equipment flange (2) on the other side, and the steel ruler is inserted in the groove box; and a pointer is arranged on the groove box.
4. The GIS device telescopic joint displacement alarm device of claim 1, characterized in that: the number of the telescopic joint pull rods (4) of the equipment is 3-6.
5. The GIS device telescopic joint displacement alarm device of claim 4, characterized in that: the number of the equipment telescopic joint pull rods (4) is 4, and the 4 equipment telescopic joint pull rods (4) are distributed at four corners of the equipment flange (2).
6. The GIS device telescopic joint displacement alarm device of claim 1, characterized in that: expansion joint side nuts are arranged on two sides of the equipment flange (2) and are in threaded connection with an equipment expansion joint pull rod (4); and a locking nut gasket is arranged between the equipment flange (2) and the expansion joint side nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863743.3U CN215572799U (en) | 2021-08-11 | 2021-08-11 | GIS equipment telescopic joint displacement alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863743.3U CN215572799U (en) | 2021-08-11 | 2021-08-11 | GIS equipment telescopic joint displacement alarm device |
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| Publication Number | Publication Date |
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| CN215572799U true CN215572799U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121863743.3U Active CN215572799U (en) | 2021-08-11 | 2021-08-11 | GIS equipment telescopic joint displacement alarm device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117333675A (en) * | 2023-10-09 | 2024-01-02 | 国网吉林省电力有限公司 | Monitoring and early warning method and system for GIS expansion joint |
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2021
- 2021-08-11 CN CN202121863743.3U patent/CN215572799U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117333675A (en) * | 2023-10-09 | 2024-01-02 | 国网吉林省电力有限公司 | Monitoring and early warning method and system for GIS expansion joint |
| CN117333675B (en) * | 2023-10-09 | 2024-04-09 | 国网吉林省电力有限公司 | Monitoring and early warning method and system for GIS expansion joint |
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