CN209495646U - A kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement - Google Patents
A kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement Download PDFInfo
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- CN209495646U CN209495646U CN201920196997.0U CN201920196997U CN209495646U CN 209495646 U CN209495646 U CN 209495646U CN 201920196997 U CN201920196997 U CN 201920196997U CN 209495646 U CN209495646 U CN 209495646U
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Abstract
The utility model provides a kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement, including GIS ontology, multi-turn bellows is wound on the GIS ontology, the two sides of the multi-turn bellows are respectively equipped with the first metal flange and the second metal flange, first metal flange is connected by GIS ontology fastening bolt with one end of the first fastening folder, second metal flange is connected by GIS ontology fastening bolt with one end of the second fastening folder, the other end of the first fastening folder is connected by fastening bolt with one end of accurate ruler, the other end of the second fastening folder is connected by fastening bolt with one end of measurement meter connecting rod, the other end of the measurement meter connecting rod is fixedly installed with measurement meter, the other end of the precision ruler passes through the measurement meter, the technical program Strong support is provided for the quantization monitoring of GIS bellows temperature movement.
Description
Technical field
The utility model relates to substation's GIS Condition Monitoring Technology field more particularly to a kind of substation GIS bus bar canisters
The monitoring device of bellows telescopic displacement.
Background technique
In under outdoor GIS device, especially complexity weather and geological environment, bus bar canister is inevitably run
The influence of the factors such as what temperature change generated expand with heat and contract with cold, basic differential settlement, it is inevitable that GIS device, which generates displacement,
's.Therefore metal corrugated expension joint need to be installed on bus bar canister in order to compensate for being displaced and adjusting in-site installation size in engineering
For compensating displacement caused by stroke to expand with heat and contract with cold etc. in the relative displacement between mounting and adjusting, compensated foundation, and operation.
Theoretically, it is constructed by correct reasonable disposition bellows and the in-site installation of high quality, warm change can be effectively eliminated
The harm of displacement stress, but engineering is practical shows: with the running time increases or since the cooperation of bellows and support does not conform to
Reason or product design or in-site installation construction quality cause bellows bit shift compensation disabler to happen occasionally, practical maintenance work
In its change in size situation can not be monitored by effective means, when telescopic joint displacement it is larger when cannot find in time, to bury
Lower hidden danger.Outdoor GIS device carrys out the change in displacement situation of real-time monitoring telescopic joint due to lacking dedicated measuring tool, it has also become
One of the principal element for causing GIS device gas to leak, seriously threatens GIS device operational reliability and safety.It can be seen that reality
The online observation of existing GIS bellows displacement has important engineering value to the safety in operation for promoting GIS device.
Utility model content
The purpose of this utility model is that in view of the above shortcomings of the prior art, providing a kind of substation GIS bus bar canister
The monitoring device of bellows telescopic displacement, by bellows stretch variable (shrinkage, heat expansion) be reflected as slide rheostat resistance value become
Change, by the variation of the end voltage of detection measurement resistance, measures the telescopic displacement value of bellow indirectly.
To achieve the above object, the utility model adopts the technical scheme that
The utility model provides a kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement, including GIS sheet
Body winds multi-turn bellows on the GIS ontology, and the two sides of the multi-turn bellows are respectively equipped with the first metal flange and second
Metal flange, first metal flange is connected by GIS ontology fastening bolt with one end of the first fastening folder, described
Second metal flange is connected by GIS ontology fastening bolt with one end of the second fastening folder, the first fastening folder
The other end is connected by fastening bolt with one end of accurate ruler, the other end of the second fastening folder by fastening bolt with
One end of measurement meter connecting rod is connected, and the other end of the measurement meter connecting rod is fixedly installed with measurement meter, the precision
The other end of ruler passes through the measurement meter.
Further, the measurement meter includes high precision DC power supply, and the high precision DC power supply and temperature coefficient are steady
Fixed measurement resistance and the high-precision slide rheostat series connection with connecting rod；The stable measurement resistance of the temperature coefficient and voltage are believed
Number acquisition be displaced computing unit it is in parallel.
Further, the voltage signal acquisition and displacement computing unit include that voltage signal adjusts circuit, A/D modulus turns
Change the mold block；
The voltage signal adjusts the voltage at the stable measurement resistance both ends of temperature coefficient described in circuit measuring；
The voltage signal is adjusted electric signal measured by circuit and is changed into digital letter by the A/D analog-to-digital conversion module
Number；
The central processing unit receives the digital signal of the A/D analog-to-digital conversion module transmission；
The liquid crystal display will come out as the result is shown handled by the central processing unit.
Further, the multi-turn bellows shrinkage or heat expansion drive the accurate ruler movement.
Further, the first fastening folder and the second fastening folder are hollow tube.
The utility model has the following beneficial effects: driving high-accuracy cunning by the connecting rod of the stable material production of temperature system
Dynamic digitlization ohmer screw rod realizes the digitlization precise measurement of the flexible horizontal displacement of bellows, and visual by liquid crystal display realization
Change display.The technical program provides strong support for the quantization monitoring of GIS bellows temperature movement.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the monitoring device of substation GIS bus bar canister bellows telescopic displacement of the utility model
Figure；
Fig. 2 is one of the mounting structure schematic diagram for measuring meter；
Fig. 3 is the two of the mounting structure schematic diagram of measurement meter；
Fig. 4 is the circuit diagram for measuring meter；
Fig. 5 is voltage signal acquisition and the schematic diagram for being displaced computing unit；
Fig. 6 is the circuit diagram that voltage signal adjusts circuit；
Fig. 7 is the circuit diagram of liquid crystal display.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to the accompanying drawing, to this reality
It is further elaborated with novel.It should be appreciated that specific embodiment described herein is only to explain the utility model,
It is not used to limit the utility model.
It please refers to Fig.1 to Fig.3, a kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement, including GIS sheet
Body 1 winds multi-turn bellows 2 on the GIS ontology 1, and the two sides of the multi-turn bellows 2 are respectively equipped with the first metal flange
101 and second metal flange 102, first metal flange 101 folder 301 is fastened with first by GIS ontology fastening bolt 4
One end be connected, second metal flange 102 by GIS ontology fastening bolt 4 with second fasten folder 302 one end phase
The other end of connection, the first fastening folder 301 is connected by fastening bolt 4 with one end of accurate ruler 6, and described second is tight
Gu the other end of folder 302 is connected by fastening bolt 4 with one end of measurement meter connecting rod 8, the measurement meter connecting rod 8
The other end is fixedly installed with measurement meter 7, and the other end of the precision ruler 6 passes through the measurement meter 7.
Accurate ruler 6 is made of special material, and temperature-coefficient of electrical resistance, coefficient of thermal expansion and contraction are minimum (for example, by using nickel
Evanohm), it as the resistor main body of slide rheostat, while being also the track of measurement meter sliding.Meter is measured in accurate ruler
The resistance of upper sliding, series connection access circuit changes.
Wherein, one end of the first fastening folder 301 and the second fastening folder 302 is vertically arranged with GIS ontology, the first fastening
The other end and GIS ontology of folder 301 and the second fastening folder 302 are horizontally disposed.
Accurate ruler 6 and measurement meter connecting rod 8 are horizontally disposed with multi-turn bellows 2.
When 2 shrinkage of multi-turn bellows or heat expansion, the first fastening folder 301 and the second fastening folder 302 it is opposite or mutually from
Movement, to detect the variation of the end voltage of measurement resistance, is surveyed indirectly to drive movement of the accurate ruler 6 in measurement meter 7
Measure the telescopic displacement value of bellows.
Furthermore: 703 liang of end links of high-precision slide rheostat with connecting rod are separately fixed at the gold at 2 both ends of multi-turn bellows
Belong on flange, after multi-turn bellows 2 is expanded with heat and contract with cold power by temperature, when horizontal displacement occurs, 2 liang of multi-turn bellows can be caused
The distance between first metal flange 101 and the second metal flange 102 at end become larger or become smaller, to drive rod slide, draw
The variation of slide rheostat resistance value is played, is realized between first metal flange 101 and the second metal flange 102 at bellows both ends
The sensing of distance.
Fig. 4 and Fig. 5 are please referred to, the measurement meter 7 includes high precision DC power supply 701, the high precision DC power supply
The 701 measurement resistance 702 stable with temperature coefficient and the high-precision slide rheostat 703 with connecting rod are connected；The temperature coefficient
Stable measurement resistance 702 is in parallel with displacement computing unit 9 with voltage signal acquisition.
The voltage signal acquisition and displacement computing unit 9 include that voltage signal adjusts circuit 901, A/D analog-to-digital conversion mould
Block 902；
Wherein, voltage signal is adjusted circuit 901 and is realized using instrument amplifier AD623, and voltage signal adjusts circuit diagram as schemed
6,
A/D analog-to-digital conversion module 902 is realized using 12 A/D that SMT32F103 is integrated；
The voltage signal adjusts the voltage that circuit 901 measures stable measurement 702 both ends of resistance of the temperature coefficient；
The voltage signal is adjusted electric signal measured by circuit 901 and is changed into number by the A/D analog-to-digital conversion module 902
Word signal；
The central processing unit 903 receives the digital signal that the A/D analog-to-digital conversion module 902 transmits；
Wherein, central processing unit SMT32F103.
The liquid crystal display 904 will come out as the result is shown handled by the central processing unit 903.
Wherein, the liquid crystal display that liquid crystal display 904 uses is 0.96 cun of PLED12864 module, with central processing unit
903 connection circuit diagram such as 7；
2 shrinkage of multi-turn bellows or heat expansion drive the accurate ruler 6 to move.
The first fastening folder 301 and the second fastening folder 302 are hollow tube.
Wherein, bellows temperature movement calculation method:
Telescopic displacement measurement model:
The full resistance for remembering slide rheostat is R0, the resistance of unit length is r0/mm.In measurement, enable slide rheostat sliding
For moving contact when medium position, being denoted as bellows telescopic displacement value is zero, and measurement resistance terminal voltage value is denoted as V0。
After temperature changes, the distance Lx that rheostat slider changes, measurement resistance terminal voltage value is denoted as Vx, then
Lx can be expressed as shown in formula (1):
Lx=3R0/2r0–K(2R1+R0)/2r0
K=Vx/V0
Lx is that positive value epoch meter corrugated pipe expands, and is the meter corrugated pipe shrinkage of negative value epoch.
That is: R is taken0=2R1, then formula (1) can simplify are as follows:
Lx=3R0/2r0-k3R0/2r0
=(1-k) 3R0/2r0 (2)
When temperature movement does not occur for bellows, i.e., slide rheostat slider has k=1 at initial position, substitutes into
Formula (2), can obtain:
Lx=0；
When temperature shrinkage displacement occurs for bellows, i.e. slide rheostat slider moves right, and slide rheostat connects
Entering circuitous resistance to become smaller, measurement resistance terminal voltage relative initial position becomes larger, i.e. K > 1, and substituting into formula (2) can obtain,
Lx<0；
When temperature expansion displacement occurs for bellows, i.e. slide rheostat slider is moved to the left, and slide rheostat connects
Entering circuitous resistance to become larger, measurement resistance terminal voltage relative initial position becomes smaller, i.e. K < 1, and substituting into formula (2) can obtain,
Lx>0；
It can be seen that the temperature movement and quantization of bellow can be reacted by calculating Lx algebraic value.
That is, voltage signal acquisition and displacement computing unit 9 pass through the stable measurement resistance 702 of acquisition measurement temperature coefficient
Voltage signal calculates displacement according to formula (1), is shown by liquid crystal display 904.
The above-mentioned embodiments merely express the embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (5)
1. a kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement, including GIS ontology (1), the GIS ontology
(1) multi-turn bellows (2) are wound on, it is characterised in that: the two sides of the multi-turn bellows (2) are respectively equipped with the first metal flange
(101) and the second metal flange (102), first metal flange (101) are tight with first by GIS ontology fastening bolt (4)
Gu one end of folder (301) is connected, second metal flange (102) passes through GIS ontology fastening bolt (4) and the second fastening
One end of folder (302) is connected, and the other end of first fastening folder (301) passes through fastening bolt (4) and accurate ruler (6)
One end be connected, the other end of second fastening folder (302) by fastening bolt (4) and measures meter connecting rod (8)
One end is connected, it is described measurement meter connecting rod (8) the other end be fixedly installed with measurement meter (7), it is described precision ruler (6) it is another
One end passes through the measurement meter (7).
2. a kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement according to claim 1, feature exist
In: the measurement meter (7) includes high precision DC power supply (701), and the high precision DC power supply (701) and temperature coefficient are steady
Fixed measurement resistance (702) and high-precision slide rheostat (703) series connection with connecting rod；The stable measurement electricity of the temperature coefficient
It is in parallel with displacement computing unit (9) with voltage signal acquisition to hinder (702).
3. a kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement according to claim 2, feature exist
In: the voltage signal acquisition includes that voltage signal adjusts circuit (901), A/D analog-to-digital conversion module with displacement computing unit (9)
(902)；
The voltage signal adjusts the voltage that circuit (901) measure stable measurement resistance (702) both ends of the temperature coefficient；
The voltage signal is adjusted electric signal measured by circuit (901) and is changed into number by the A/D analog-to-digital conversion module (902)
Word signal；
The central processing unit (903) receives the digital signal of A/D analog-to-digital conversion module (902) transmission；
Liquid crystal display (904) will come out as the result is shown handled by the central processing unit (903).
4. a kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement according to claim 1, feature exist
In: multi-turn bellows (2) shrinkage or heat expansion drive the accurate ruler (6) to move.
5. a kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement according to claim 1, feature exist
In: first fastening folder (301) and described second fastens folder (302) as hollow tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920196997.0U CN209495646U (en) | 2019-02-14 | 2019-02-14 | A kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement |
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| CN201920196997.0U CN209495646U (en) | 2019-02-14 | 2019-02-14 | A kind of monitoring device of substation GIS bus bar canister bellows telescopic displacement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368627A (en) * | 2021-07-20 | 2021-09-10 | 杭州依技设备成套工程有限公司 | Center suction exhaust emission sterilizer |
| WO2022039256A1 (en) * | 2020-08-21 | 2022-02-24 | 川崎重工業株式会社 | Liquefied gas carrying ship |
| CN115507795A (en) * | 2022-11-10 | 2022-12-23 | 江苏安靠智能输电工程科技股份有限公司 | Intelligent displacement monitoring bellows for GIL and GIS |
-
2019
- 2019-02-14 CN CN201920196997.0U patent/CN209495646U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022039256A1 (en) * | 2020-08-21 | 2022-02-24 | 川崎重工業株式会社 | Liquefied gas carrying ship |
| JP7538654B2 (en) | 2020-08-21 | 2024-08-22 | 川崎重工業株式会社 | Liquefied Gas Carrier |
| CN113368627A (en) * | 2021-07-20 | 2021-09-10 | 杭州依技设备成套工程有限公司 | Center suction exhaust emission sterilizer |
| CN115507795A (en) * | 2022-11-10 | 2022-12-23 | 江苏安靠智能输电工程科技股份有限公司 | Intelligent displacement monitoring bellows for GIL and GIS |
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