CN105628225B - A kind of temperature measuring equipment and the GIL using the temperature measuring equipment - Google Patents
A kind of temperature measuring equipment and the GIL using the temperature measuring equipment Download PDFInfo
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- CN105628225B CN105628225B CN201610117228.8A CN201610117228A CN105628225B CN 105628225 B CN105628225 B CN 105628225B CN 201610117228 A CN201610117228 A CN 201610117228A CN 105628225 B CN105628225 B CN 105628225B
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- gil
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- transfer block
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
- G01K1/18—Special arrangements for conducting heat from the object to the sensitive element for reducing thermal inertia
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention relates to a kind of temperature measuring equipment and use the GIL of the temperature measuring equipment, a kind of GIL, including GIL cylinder and temperature measuring equipment, connection GIL inner barrel, which is provided with, in inside contact corresponding position on GIL cylinder pulls out mouth, temperature measuring equipment includes for the metal temperature transfer block for pulling out mouth sealing cooperation corresponding on GIL cylinder, the front end face of metal temperature transfer block with GIL inner barrel gas for directly contacting, the outside of metal temperature transfer block is provided with the temperature sensor for detecting metal temperature transfer block temperature, compared with optical fiber temperature-measurement method in the prior art, it only needs that temperature measuring equipment is arranged inside contact position on GIL cylinder, it does not need to carry out temperature monitoring to the overall length of GIL cylinder, and eliminate laser source, the ancillary equipments such as photoconductive structure device, greatly reduce production cost.
Description
Technical field
The present invention relates to a kind of for monitoring the internal air temperature of closed power transmission line on-line, is particularly suitable for GIL
In temperature measuring equipment.
Background technique
Big, naked problem of aging, loss are low, electric with its transmission capacity for gas-insulated metal closed power transmission line (GIL)
The advantages such as magnetic radiation is low become the preferred option that overhead transmission line is substituted under particular surroundings, and are also to solve big city urban district
Load constantly increases and causes the optinal plan of line corridor anxiety problem.When contact inside GIL is bad, due to connecing
Resistive of getting an electric shock is big, can generate superheating phenomenon when load current flows through, and the overheat of contact, bus can cause insulation ag(e)ing, abnormal
Become and even puncture, to cause open circuit, forms major accident, cause huge economic loss.Therefore, it realizes in GIL equipment
The temperature monitoring in portion finds in advance and eliminates thermal fault hidden danger, has very important significance to the safe and reliable operation of GIL.
GIL equipment progress temperature monitoring is mostly used and monitors gas-insulated enclosed switch (GIS) same method at present, using artificial
Observation contact surface color or periodic measurement loop resistance, such method cannot be monitored on-line, cannot find that in time thermal fault is asked
Topic.A kind of ultrahigh-voltage gas insulated metal is disclosed in the Chinese invention patent application that application publication number is 101819072 A of CN
Closed power transmission line temperature monitoring method, including the gas-insulated metal closed power transmission line GIL arranged in the vertical shaft borehole wall
Equipment is applied with fiber form using GIL shell and is laid with distributed temperature measuring optical fiber on the outer wall of GIL cylinder, passes through optical fiber sense
Temperature obtains GIL temperature distribution history in high drop vertical shaft, heating conduction and bad, such temperature prison due to GIL cylinder
Survey method cannot monitor the true temperature of GIL inner barrel insulating gas on-line.GIL transmission line of electricity is all long in practice, just
It needs the overall length along GIL transmission line of electricity to be laid with temperature-measuring optical fiber, monitors the Temperature Distribution of entire GIL transmission line of electricity, it is also necessary to therewith
The ancillary equipment of matched laser source, photelectric receiver, lock-in amplifier and microprocessing unit etc., according to Temperature Distribution song
Line finds out heat generating spot, leads to higher cost, and is usually in contact not at the joint location of each contact in GIL cylinder
Good and superheating phenomenon carries out temperature monitoring to entire GIL route and further increases cost.
Summary of the invention
It is an object of the invention to overcome problems of the prior art, and provide a kind of lower-cost on-line monitoring
Temperature measuring equipment, meanwhile, the object of the invention is also to provide a kind of GIL using the temperature measuring equipment.
A kind of temperature measuring equipment of the invention adopts the following technical scheme that a kind of temperature measuring equipment, including is used for and GIL cylinder
The metal temperature transfer block for pulling out mouth sealing cooperation, the front end face of metal temperature transfer block with GIL inner barrel gas for directly contacting, gold
The outside for belonging to temperature transfer block is provided with the temperature sensor for detecting metal temperature transfer block temperature.
The thermal conductivity of the metal temperature transfer block is greater than the thermal conductivity of GIL cylinder.
The temperature measuring equipment further includes being connected to metal to pass that on warm plate and cover at temperature sensor periphery prevents gold
Belong to the too fast heat shield of temperature transfer block heat losses, the cable outlet hole for being pierced by for connection cable is provided on heat shield.
The heat shield include the cylinder that axis extends along the longitudinal direction and be covered on the right side of cylinder and and cylinder
The cover board of cooperation is sealed, the front end face of cylinder and the rear end face of metal temperature transfer block seal and cooperate.
The cable outlet hole is set on cylinder, is provided at cable outlet hole on the cylinder close with cylinder body outer wall
Seal the cable outlet plate of cooperation and the cable seal head with the sealing cooperation of cable outlet plate.
The metal pass be provided on warm plate it is that plate thickness extends along the longitudinal direction and with metal pass warm plate rear end face it
Between distance be greater than temperature sensor rear end passed to metal temperature plate the distance between rear end face overhanging plate, set on overhanging plate
It is equipped with the connecting terminal for being respectively used to be electrically connected with temperature sensor and connection cable when use.
A kind of GIL of the invention adopts the following technical scheme that a kind of GIL, including GIL cylinder, further includes temperature measuring equipment, institute
It states and is provided with the mouth that pulls out of connection GIL inner barrel in inside contact corresponding position on GIL cylinder, temperature measuring equipment includes being used for
The metal temperature transfer block for pulling out mouth sealing cooperation corresponding on GIL cylinder, the front end face of metal temperature transfer block be used for in GIL cylinder
Portion's gas directly contacts, and the outside of metal temperature transfer block is provided with the temperature sensor for detecting metal temperature transfer block temperature.
The thermal conductivity of the metal temperature transfer block is greater than the thermal conductivity of GIL cylinder.
The temperature measuring equipment further includes being connected to metal to pass that on warm plate and cover at temperature sensor periphery prevents gold
Belong to the too fast heat shield of temperature transfer block heat losses, the cable outlet hole for being pierced by for connection cable is provided on heat shield.
The heat shield include the cylinder that axis extends along the longitudinal direction and be covered on the right side of cylinder and and cylinder
The cover board of cooperation is sealed, the front end face of cylinder and the rear end face of metal temperature transfer block seal and cooperate.
The invention has the benefit that being provided in connection GIL cylinder on GIL cylinder in inside contact corresponding position
Mouth is pulled out in portion, and the front end face of metal temperature transfer block cooperates with mouth sealing is pulled out, and the front end face of metal temperature transfer block is by pulling out mouth and GIL
The gas of inner barrel directly contacts, and temperature sensor can monitor the temperature of metal temperature transfer block on-line in real time, with existing skill
Optical fiber temperature-measurement method in art is compared, it is only necessary to temperature measuring equipment be arranged inside contact position on GIL cylinder, do not need
Temperature monitoring is carried out to the overall length of GIL cylinder, and eliminates the ancillary equipments such as laser source, photoconductive structure device, is greatly reduced
Production cost.
Further, the thermal conductivity of metal temperature transfer block is greater than the thermal conductivity of GIL cylinder, it is ensured that metal temperature transfer block
Temperature is equal to the temperature of the insulating gas of GIL inner barrel, keeps monitoring more accurate, due to the high metal temperature transfer block of thermal conductivity
Cost be significantly larger than the cost of GIL cylinder, it is only necessary to metal is passed into the warm plate material high using thermal conductivity, is further saved
Cost is saved.
Further, the use of heat shield, can prevent that metal temperature transfer block heat losses are too fast to cause thermometric inaccurate
The problem of.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of one embodiment of GIL of the invention；
Fig. 2 is the structural schematic diagram of temperature measuring equipment.
Specific embodiment
A kind of GIL, as described in Figure 1, including GIL cylinder 15 and temperature measuring equipment 17, in internal contact phase on GIL cylinder 15
It is provided at corresponding position and pulls out mouth 16, respectively pulled out and be fitted with temperature measuring equipment 17 at mouth 16.Temperature measuring equipment 17, such as Fig. 2
It is shown, including for pull out the sealing cooperation of the mouth 16 and metal temperature transfer block that is directly contacted with GIL internal gas, metal temperature transfer block
Warm plate 18 is passed for the circular metal that plate thickness extends along the longitudinal direction, the thermal conductivity that metal passes warm plate 18 is greater than GIL cylinder 15
Thermal conductivity, metal pass circumferentially be arranged at intervals on warm plate 18 for the bolt penetration hole 2 of pulling out 16 for releasable connection of mouth, metal passes warm plate
It is provided with metal on 18 front end face and passes warm plate protrusion 19, the diameter that metal passes warm plate protrusion 19 is identical as the diameter for pulling out mouth 16,
Metal passes warm plate protrusion 19 in temperature measuring equipment 17 and when pulling out the sealing of mouth 16 and being coupled, and plays the role of pre-determined bit, metal passes temperature
Temperature sensor is provided on the rear end face of plate 18, temperature sensor is to be closely set in metal to pass on the rear end face of warm plate 18
The thermocouple temperature sensor 7 of patch shape is simultaneously directly connected by bolt, has good heating conduction because metal passes warm plate 18
And directly contacted with the insulating gas inside GIL cylinder 15,7 observed temperature of thermocouple temperature sensor can regard as GIL cylinder
The temperature of 15 built-in electrical insulation gases, metal pass be additionally provided on the rear end face of warm plate 18 it is that a plate thickness extends along the longitudinal direction and
And the distance between rear end face that warm plate 18 is passed with metal passes the rear end face of warm plate 18 greater than the rear end of temperature sensor to metal
The distance between overhanging plate, be respectively used to be electrically connected with temperature sensor and connection cable 14 when being provided with use on overhanging plate
Connecting terminal 8, the overhanging part that overhanging plate passes the Z-shaped connecting plate 9 on the rear end face of warm plate 18 by being set to metal constitutes, Z
Shape connecting plate includes the overhanging part for passing the connected coupling part of warm plate 18 with metal and upwardly extending, one end of connecting terminal 8
It is electrically connected to thermocouple temperature sensor 7 by metal wire, the other end of connecting terminal 8 is electrically connected to cable by metal wire
14, cable 14 is connect with monitoring backstage, is provided with sealing protection attachment, sealing protection attachment on the rear end face of the warm plate 18 of metal biography
Heat shield including covering at 7 periphery of thermocouple temperature sensor, heat shield include the rear end face sealing that warm plate 18 is passed with metal
The cylinder 3 and the cover board 4 being covered on the rear end face of cylinder 3, cover board 4 and cylinder that the axis of mating connection extends along the longitudinal direction
3 are bolted, and cover plate for sealing circle 6, cylinder 3 and 4 shape of cover board are provided between the front end face of cover board 4 and the end face of cylinder of cylinder 3
In being covered in thermocouple temperature sensor 7, connecting terminal 8, metal wire and cable 14 at confined space, in dustproof and waterproof
Meanwhile it can also prevent the heat losses of the warm plate 18 of metal biography are too fast to cause thermometric inaccurate.The front end of cylinder 3 is provided with radially-inwardly
The annular protrusion of extension, the front end face and metal of annular protrusion pass and are provided with drum closure circle 11 between the rear end face of warm plate 18,
Annular protrusion passes warm plate 18 with metal and is bolted to connection, and is set to what current supply cable 14 was pierced by the circular side wall of cylinder 3
Cable punching hole is provided with the counterbore that diameter is greater than cable punching hole diameter in circular side wall at cable punching hole, is equipped in counterbore
The cable outlet plate 12 that current supply cable 14 passes through is provided with cable sealed joint 13 and therewith sealing cooperation on cable outlet plate 12,
Cable outlet plate sealing ring 10 is provided between cable outlet plate 12 and circular side wall, between cable outlet plate 12 and circular side wall
It is connected by screw bolts.Nameplate 5 is provided on the rear end face of cover board 4.The present invention can be used for the temperature of real-time monitoring GIL internal gas
Degree shows the contact condition of GIL inside contact indirectly, avoids generation GIL inside contact poor contact that superheating phenomenon is caused to cause
Open circuit forms major accident, since the present invention measures airtight space, good weatherability, be applicable not only to interior be also applied for it is outdoor right
The temperature of insulating gas inside GIL carries out on-line monitoring temperature.
In other embodiments of the invention, cylinder and cover board may be that integral structure forms heat shield；Temperature sensing
Device may be the thermistor temperature sensor for being attached on the warm plate of metal biography or being embedded on the warm plate of metal biography；It can not also
Connecting terminal is set, is directly electrically connected thermocouple temperature sensor with cable by wire；It can also be not provided with overhanging plate,
And connecting terminal is set on metal temperature transfer block or on cylinder or on cover board.
A kind of embodiment of temperature measuring equipment is identical as the embodiment of temperature measuring equipment in a kind of above-mentioned each embodiment of GIL,
Details are not described herein again.
Claims (10)
1. a kind of temperature measuring equipment, it is characterised in that: including for on GIL cylinder pull out mouth sealing cooperation metal temperature transfer block,
For directly contacting with GIL inner barrel gas, the outside of metal temperature transfer block is provided with for examining the front end face of metal temperature transfer block
Survey the temperature sensor of metal temperature transfer block temperature.
2. a kind of temperature measuring equipment according to claim 1, it is characterised in that: the thermal conductivity of the metal temperature transfer block is greater than
The thermal conductivity of GIL cylinder.
3. a kind of temperature measuring equipment according to claim 1 or 2, it is characterised in that: the temperature measuring equipment further includes being connected to
The heat shield for preventing metal temperature transfer block heat losses too fast that is on metal temperature transfer block and covering at temperature sensor periphery, it is heat-insulated
The cable outlet hole for being pierced by for connection cable is provided on cover.
4. a kind of temperature measuring equipment according to claim 3, it is characterised in that: the heat shield include axis along the longitudinal direction
The cylinder of extension and the cover board for being covered on the right side of cylinder and cooperating with cylinder sealing, the front end face and metal of cylinder pass temperature
The rear end face of block seals cooperation.
5. a kind of temperature measuring equipment according to claim 4, it is characterised in that: the cable outlet hole is set on cylinder,
Be provided at cable outlet hole on the cylinder with cylinder body outer wall sealing cooperation cable outlet plate and with cable outlet plate it is close
Seal the cable seal head of cooperation.
6. a kind of temperature measuring equipment according to claim 1, it is characterised in that: be provided with plate thickness edge on the metal temperature transfer block
It is that front-rear direction extends and be greater than the rear end of temperature sensor to metal biography with the distance between the rear end face of metal temperature transfer block
The overhanging plate of the distance between the rear end face of warm block is respectively used to and temperature sensor and wiring when being provided with use on overhanging plate
The connecting terminal of cable electrical connection.
7. a kind of GIL, including GIL cylinder, it is characterised in that: further include temperature measuring equipment, in inside contact pair on the GIL cylinder
It answers and is provided with connection GIL inner barrel at position and pulls out mouth, temperature measuring equipment includes pulling out mouth for corresponding on GIL cylinder
The metal temperature transfer block of cooperation is sealed, for the front end face of metal temperature transfer block for directly contacting with GIL inner barrel gas, metal passes temperature
The outside of block is provided with the temperature sensor for detecting metal temperature transfer block temperature.
8. a kind of GIL according to claim 7, it is characterised in that: the thermal conductivity of the metal temperature transfer block is greater than GIL cylinder
Thermal conductivity.
9. a kind of GIL according to claim 7 or 8, it is characterised in that: the temperature measuring equipment further includes being connected to metal biography
The heat shield for preventing metal temperature transfer block heat losses too fast that is on warm block and covering at temperature sensor periphery is set on heat shield
It is equipped with the cable outlet hole for being pierced by for connection cable.
10. a kind of GIL according to claim 9, it is characterised in that: the heat shield includes that axis extends along the longitudinal direction
Cylinder and be covered on the right side of cylinder and the cover board with cylinder sealing cooperation, the front end face of cylinder and metal temperature transfer block
Rear end face sealing cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117228.8A CN105628225B (en) | 2016-03-02 | 2016-03-02 | A kind of temperature measuring equipment and the GIL using the temperature measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117228.8A CN105628225B (en) | 2016-03-02 | 2016-03-02 | A kind of temperature measuring equipment and the GIL using the temperature measuring equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105628225A CN105628225A (en) | 2016-06-01 |
| CN105628225B true CN105628225B (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610117228.8A Active CN105628225B (en) | 2016-03-02 | 2016-03-02 | A kind of temperature measuring equipment and the GIL using the temperature measuring equipment |
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| CN (1) | CN105628225B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441620B (en) * | 2016-11-07 | 2018-11-16 | 国网山东省电力公司青州市供电公司 | Attaching type main transformer temperature meter |
| CN110967133B (en) * | 2018-09-29 | 2021-08-06 | 平高集团有限公司 | GIL mechanical property testing device and GIL mechanical property testing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101484786A (en) * | 2006-07-06 | 2009-07-15 | 埃普科斯股份有限公司 | Temperature measuring device |
| CN201397203Y (en) * | 2009-05-12 | 2010-02-03 | 中国水电顾问集团西北勘测设计研究院 | Temperature monitoring mechanism of ultrahigh voltage gas insulated metal-enclosed transmission line |
| CN102980679A (en) * | 2012-11-29 | 2013-03-20 | 中国电力科学研究院 | Device and method for measuring interior temperature of GIS equipment by surface acoustic wave sensor |
| CN203349934U (en) * | 2013-06-18 | 2013-12-18 | 国家电网公司 | GIS equipment contact temperature monitoring test apparatus |
| CN104458053A (en) * | 2014-12-10 | 2015-03-25 | 广东电网有限责任公司电力科学研究院 | GIS internal bus operating temperature online monitoring system and method based on acoustic surface wave technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1048333A1 (en) * | 1982-05-06 | 1983-10-15 | Всесоюзный научно-исследовательский и проектно-конструкторский институт по разработке газопромыслового оборудования | Device for introducing thermometer into gas flow |
-
2016
- 2016-03-02 CN CN201610117228.8A patent/CN105628225B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101484786A (en) * | 2006-07-06 | 2009-07-15 | 埃普科斯股份有限公司 | Temperature measuring device |
| CN201397203Y (en) * | 2009-05-12 | 2010-02-03 | 中国水电顾问集团西北勘测设计研究院 | Temperature monitoring mechanism of ultrahigh voltage gas insulated metal-enclosed transmission line |
| CN102980679A (en) * | 2012-11-29 | 2013-03-20 | 中国电力科学研究院 | Device and method for measuring interior temperature of GIS equipment by surface acoustic wave sensor |
| CN203349934U (en) * | 2013-06-18 | 2013-12-18 | 国家电网公司 | GIS equipment contact temperature monitoring test apparatus |
| CN104458053A (en) * | 2014-12-10 | 2015-03-25 | 广东电网有限责任公司电力科学研究院 | GIS internal bus operating temperature online monitoring system and method based on acoustic surface wave technology |
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