CN105628225A - Temperature measuring device and GIL using same - Google Patents
Temperature measuring device and GIL using same Download PDFInfo
- Publication number
- CN105628225A CN105628225A CN201610117228.8A CN201610117228A CN105628225A CN 105628225 A CN105628225 A CN 105628225A CN 201610117228 A CN201610117228 A CN 201610117228A CN 105628225 A CN105628225 A CN 105628225A
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- temperature
- gil
- cylinder
- metal
- plate
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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 invention relates to a temperature measuring device and a GIL using the same. The GIL comprises a GIL cylinder and a temperature measuring device. Places, corresponding to inner contacts, on the GIL cylinder are provided with pulling mouths communicated with the inner part of the GIL cylinder; the temperature measuring device comprises a metal heat transfer block in sealing match with a corresponding pulling mouth on the GIL cylinder; the front end surface of the metal heat transfer block is used for being directly contacted with a gas inside the GIL cylinder; and the outer part of the metal heat transfer block is provided with a temperature sensor for detecting the temperature of the metal heat transfer block. In comparison with an optical fiber temperature measuring method in the prior art, the temperature measuring device is only arranged at the inner contact position on the GIL cylinder, temperature monitoring does not need to be carried out on the whole length of the GIL cylinder, auxiliary devices such as a laser source and a photoelectric structure device are saved, and the production cost is greatly reduced.
Description
Technical field
The present invention relates to a kind of internal air temperature for on-line monitoring closed power transmission line, the temperature measuring equipment being particularly useful in GIL.
Background technology
The advantages such as gas-insulated metal closed power transmission line (GIL) is big with its transmission capacity, naked problem of aging, loss is low, electromagnetic radiation is low substitute the preferred option of overhead transmission line under becoming particular surroundings, and are solve the optional scheme that urban district, big city load constantly increases and cause the nervous problem of line corridor. when the contact of GIL inside is bad, owing to contact resistance becomes big, superheating phenomenon can be produced load current flow is out-of-date, and the overheated meeting of contact, bus causes aging of insulation, distortion even to puncture, thus cause open circuit, form Serious Accident, cause huge financial loss. , it is achieved to the temperature monitoring of GIL device interior, therefore find in advance and eliminate hot potential faults, the safe and reliable operation of GIL is had very important significance. at present GIL equipment is carried out temperature monitoring and mostly adopts method same with monitoring gas-insulated enclosed switch (GIS), employing manual observation contact surface color or periodic measurement loop resistance, this type of method can not on-line monitoring, can not the hot failure problems of Timeliness coverage. application publication number be CN101819072A Chinese invention patent application in disclose a kind of temperature monitoring method for ultrahigh-voltage gas insulated metal closed transmission line, comprise the gas-insulated metal closed power transmission line GIL equipment of arrangement in the vertical vertical shaft borehole wall, GIL shell external application optical fiber form is adopted to be laid with distributed temperature measuring optical fiber on the outer wall of GIL cylinder, pass through temperature detected by optical fiber, obtain GIL temperature distribution history in the vertical vertical shaft of high drop, owing to the heat conductivility of GIL cylinder is not good, this kind of temperature monitoring method can not the true temperature of on-line monitoring GIL inner barrel insulating gas. in actual, GIL transmitting line is all long, the total length along GIL transmitting line is just needed to lay temperature-measuring optical fiber, monitor the temperature distribution of whole GIL transmitting line, also need the utility appliance of laser source supporting with it, photoelectricity receptor, lock-in amplifier and micro-processing unit etc., heat generating spot is found out according to temperature distribution history, cause cost higher, and be usually all that the joint location place of each contact in GIL cylinder comes in contact bad and superheating phenomenon, whole GIL circuit is carried out temperature monitoring and further increases cost.
Summary of the invention
It is an object of the invention to overcome problems of the prior art, and the on-line monitoring temperature measuring equipment providing a kind of cost lower, meanwhile, the present invention also aims to provide a kind of GIL using this temperature measuring equipment.
A kind of temperature measuring equipment of the present invention adopts following technical scheme: a kind of temperature measuring equipment, comprise for GIL cylinder pulls out the metal temperature transfer block that mouth is sealed and matched, the front end face of metal temperature transfer block is for directly contacting with GIL inner barrel gas, and the outer setting of metal temperature transfer block has the temperature sensor for detecting metal temperature transfer block temperature.
The thermal conductivity of described metal temperature transfer block is greater than the thermal conductivity of GIL cylinder.
Described temperature measuring equipment also comprises and is connected to metal and passes on temperature plate and cover at the insulation plate preventing metal temperature transfer block heat losses too fast of temperature sensor periphery, and insulation plate is provided with the cable outlet hole for passing for wiring cable.
Described insulation plate comprises cylinder that axis extends along the longitudinal direction and is covered on the right side of cylinder and the cover plate that is sealed and matched with cylinder, and the front end face of cylinder and the aft end face of metal temperature transfer block are sealed and matched.
Described cable outlet hole is arranged on cylinder, and described cylinder is provided with the cable outlet plate being sealed and matched with cylinder body outer wall and the cable seal head being sealed and matched with cable outlet plate in cable outlet hole place.
Described metal pass temperature plate is provided with plate thick extend along the longitudinal direction and and the outstanding of distance that pass to metal between the aft end face of temperature plate of the distance that passes between the aft end face of temperature plate of the metal rear end that is greater than temperature sensor stretch plate, hang and stretch the connection terminal being respectively used to when being provided with use on plate with temperature sensor and wiring cable are electrically connected.
A kind of GIL of the present invention adopts following technical scheme: a kind of GIL, comprise GIL cylinder, also comprise temperature measuring equipment, what be provided with connection GIL inner barrel on described GIL cylinder in inside contact corresponding position pulls out mouth, temperature measuring equipment comprises for corresponding on the GIL cylinder metal temperature transfer block pulling out mouth and being sealed and matched, the front end face of metal temperature transfer block is for directly contacting with GIL inner barrel gas, and the outer setting of metal temperature transfer block has the temperature sensor for detecting metal temperature transfer block temperature.
The thermal conductivity of described metal temperature transfer block is greater than the thermal conductivity of GIL cylinder.
Described temperature measuring equipment also comprises and is connected to metal and passes on temperature plate and cover at the insulation plate preventing metal temperature transfer block heat losses too fast of temperature sensor periphery, and insulation plate is provided with the cable outlet hole for passing for wiring cable.
Described insulation plate comprises cylinder that axis extends along the longitudinal direction and is covered on the right side of cylinder and the cover plate that is sealed and matched with cylinder, and the front end face of cylinder and the aft end face of metal temperature transfer block are sealed and matched.
The useful effect of the present invention is: what be provided with connection GIL inner barrel on GIL cylinder in inside contact corresponding position pulls out mouth, mouth is sealed and matched the front end face of metal temperature transfer block with pulling out, and the front end face of metal temperature transfer block is by pulling out, and mouth directly contacts with the gas of GIL inner barrel, temperature sensor can be real-time the temperature of on-line monitoring metal temperature transfer block, compared with optical fiber temperature-measurement method of the prior art, only need inside contact position on GIL cylinder that temperature measuring equipment is set, the total length to GIL cylinder is not needed to carry out temperature monitoring, and eliminate laser source, the utility appliance such as photoconductive structure device, greatly reduce production cost.
Further, metal temperature transfer block thermal conductivity be greater than the thermal conductivity of GIL cylinder, can ensure that the temperature of metal temperature transfer block is equal to the temperature of the insulating gas of GIL inner barrel, make monitoring more accurate, owing to the cost of the high metal temperature transfer block of thermal conductivity is far away higher than the cost of GIL cylinder, only need metal passes the high material of temperature plate employing thermal conductivity, provide cost savings further.
Further, the use of insulation plate, it is possible to prevent the too fast problem causing survey temperature inaccurate of metal temperature transfer block heat losses.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of a kind of GIL of the present invention;
Fig. 2 is the structural representation of temperature measuring equipment.
Embodiment
A kind of GIL, as described in Figure 1, comprises on GIL cylinder 15 and temperature measuring equipment 17, GIL cylinder 15 the corresponding position of the contact in inside and is provided with and pulls out mouth 16, respectively pulls out mouth 16 place and all coordinates and be provided with temperature measuring equipment 17. temperature measuring equipment 17, as shown in Figure 2, comprise for pull out metal temperature transfer block that is that mouth 16 is sealed and matched and that directly contact with GIL internal gas, the metal that metal temperature transfer block is the thick circle extended along the longitudinal direction of plate passes temperature plate 18, the thermal conductivity of metal biography temperature plate 18 is greater than the thermal conductivity of GIL cylinder 15, metal pass temperature plate 18 on circumference be arranged at intervals with for the bolt penetration hole 2 pulling out mouth 16 releasable connection, metal passes and is provided with metal biography temperature plate projection 19 on the front end face of temperature plate 18, the diameter that metal passes temperature plate projection 19 is identical with the diameter pulling out mouth 16, metal pass temperature plate projection 19 temperature measuring equipment 17 with pull out mouth 16 be sealed and matched install time, play the effect of pre-determined bit, metal passes and is provided with temperature sensor on the aft end face of temperature plate 18, temperature sensor is the thermocouple temperature sensor 7 of the paster shape being closely set on the aft end face of metal biography temperature plate 18 and is directly connected by bolt, there is good heat conductivility and the insulating gas with GIL cylinder 15 inside directly contacts because metal passes temperature plate 18, thermocouple temperature sensor 7 observed temperature can regard as the temperature of GIL cylinder 15 built-in electrical insulation gas, metal pass the aft end face of temperature plate 18 is also provided with plate thick extend along the longitudinal direction and and the outstanding of distance that pass to metal between the aft end face of warm plate 18 of the distance that passes between the aft end face of temperature plate 18 of the metal rear end that is greater than temperature sensor stretch plate, hang and stretch the connection terminal 8 being respectively used to when being provided with use on plate with temperature sensor and wiring cable 14 are electrically connected, outstanding Shen plate is divided by the overhang being arranged at metal and passing the Z-shaped web plate 9 on the aft end face of temperature plate 18 and forms, Z-shaped web plate comprises the connection portion being connected with metal biography temperature plate 18 and the overhang upwards extended is divided, one end of connection terminal 8 is electrically connected on thermocouple temperature sensor 7 by metal wire, the other end of connection terminal 8 is electrically connected on cable 14 by metal wire, cable 14 is connected with monitoring backstage, metal passes and is provided with sealing protection annex on the aft end face of temperature plate 18, sealing protection annex comprises the insulation plate covering at thermocouple temperature sensor 7 periphery, insulation plate comprises the aft end face passing temperature plate 18 with metal and is sealed and matched the cylinder 3 that the axis being connected extends along the longitudinal direction and the cover plate 4 being covered on the aft end face of cylinder 3, cover plate 4 is connected with cylinder 3 bolt, it is provided with cover plate for sealing circle 6 between the front end face of cover plate 4 and the end face of cylinder of cylinder 3, cylinder 3 and cover plate 4 form enclosed space by thermocouple temperature sensor 7, connection terminal 8, in metal wire and cable 14 are covered in, while dustproof and waterproof, heat losses too fast the causing that also can prevent metal from passing temperature plate 18 surveys warm being forbidden. the front end of cylinder 3 is provided with the annular protrusion extended radially inwardly, it is provided with drum closure circle 11 between the aft end face of the front end face of annular protrusion and metal biography temperature plate 18, annular protrusion and metal pass temperature plate 18 and are bolted to connection, the circular side wall of cylinder 3 is arranged at for the cable punching hole that cable 14 passes, circular side wall is provided with the heavy hole that diameter is greater than cable punching hole diameter in cable punching hole place, heavy hole is provided with for the cable outlet plate 12 that cable 14 passes, cable outlet plate 12 is provided with cable sealed joint 13 and is sealed and matched with it, cable outlet plate sealing-ring 10 it is provided with between cable outlet plate 12 and circular side wall, between cable outlet plate 12 and circular side wall with bolts.The aft end face of cover plate 5 is provided with nameplate 5. The present invention can be used for the temperature of Real-Time Monitoring GIL internal gas, the contact condition of display GIL inside contact indirectly, avoiding producing GIL inside contact loose contact causes superheating phenomenon to cause open circuit formation Serious Accident, owing to the present invention measures airtight space, good weatherability, is not only applicable to the indoor outdoor that is yet applicable to and the temperature of the insulating gas of GIL inside is carried out on-line monitoring temperature.
In other embodiments of the invention, cylinder and cover plate can also be structure as a whole formation insulation plate; Temperature sensor can also pass on temperature plate for being attached at metal or be embedded at metal and pass the thermistor temperature sensor on temperature plate; Connection terminal can not also be set, directly thermocouple temperature sensor is electrically connected with cable by wire; Can not also arrange to hang and stretch plate, and connection terminal is arranged on metal temperature transfer block or on cylinder or on cover plate.
The embodiment of a kind of temperature measuring equipment is identical with the embodiment of the temperature measuring equipment in each embodiment of above-mentioned a kind of GIL, repeats no more herein.
Claims (10)
1. a temperature measuring equipment, it is characterized in that: comprise for GIL cylinder pulls out the metal temperature transfer block that mouth is sealed and matched, the front end face of metal temperature transfer block is for directly contacting with GIL inner barrel gas, and the outer setting of metal temperature transfer block has the temperature sensor for detecting 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 described metal temperature transfer block is greater than the thermal conductivity of GIL cylinder.
3. a kind of temperature measuring equipment according to claim 1 and 2, it is characterized in that: described temperature measuring equipment also comprises and is connected to metal and passes on temperature plate and cover at the insulation plate preventing metal temperature transfer block heat losses too fast of temperature sensor periphery, and insulation plate is provided with the cable outlet hole for passing for wiring cable.
4. a kind of temperature measuring equipment according to claim 3, it is characterized in that: described insulation plate comprises cylinder that axis extends along the longitudinal direction and is covered on the right side of cylinder and the cover plate that is sealed and matched with cylinder, and the front end face of cylinder and the aft end face of metal temperature transfer block are sealed and matched.
5. a kind of temperature measuring equipment according to claim 4, it is characterized in that: described cable outlet hole is arranged on cylinder, described cylinder is provided with in cable outlet hole place the cable outlet plate being sealed and matched with cylinder body outer wall and the cable seal head being sealed and matched with cable outlet plate.
6. a kind of temperature measuring equipment according to claim 1, it is characterized in that: described metal pass temperature plate is provided with plate thick extend along the longitudinal direction and and the outstanding of distance that pass to metal between the aft end face of temperature plate of the distance that passes between the aft end face of temperature plate of the metal rear end that is greater than temperature sensor stretch plate, hang and stretch the connection terminal being respectively used to when being provided with use on plate with temperature sensor and wiring cable are electrically connected.
7. a GIL, comprise GIL cylinder, it is characterized in that: also comprise temperature measuring equipment, what be provided with connection GIL inner barrel on described GIL cylinder in inside contact corresponding position pulls out mouth, temperature measuring equipment comprises for corresponding on the GIL cylinder metal temperature transfer block pulling out mouth and being sealed and matched, the front end face of metal temperature transfer block is for directly contacting with GIL inner barrel gas, and the outer setting of metal temperature transfer block has 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 described metal temperature transfer block is greater than the thermal conductivity of GIL cylinder.
9. a kind of GIL according to claim 7 or 8, it is characterized in that: described temperature measuring equipment also comprises and is connected to metal and passes on temperature plate and cover at the insulation plate preventing metal temperature transfer block heat losses too fast of temperature sensor periphery, and insulation plate is provided with the cable outlet hole for passing for wiring cable.
10. a kind of GIL according to claim 9, it is characterized in that: described insulation plate comprises cylinder that axis extends along the longitudinal direction and is covered on the right side of cylinder and the cover plate that is sealed and matched with cylinder, and the front end face of cylinder and the aft end face of metal temperature transfer block are sealed and matched.
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 true CN105628225A (en) | 2016-06-01 |
| CN105628225B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441620A (en) * | 2016-11-07 | 2017-02-22 | 国网山东省电力公司青州市供电公司 | Plying-up type main transformer thermometer |
| CN110967133A (en) * | 2018-09-29 | 2020-04-07 | 平高集团有限公司 | GIL mechanical property testing device and GIL mechanical property testing system |
Citations (6)
| 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 |
| 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 |
-
2016
- 2016-03-02 CN CN201610117228.8A patent/CN105628225B/en active Active
Patent Citations (6)
| 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 |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441620A (en) * | 2016-11-07 | 2017-02-22 | 国网山东省电力公司青州市供电公司 | Plying-up type main transformer thermometer |
| 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 |
| CN110967133A (en) * | 2018-09-29 | 2020-04-07 | 平高集团有限公司 | GIL mechanical property testing device and GIL mechanical property testing system |
| 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 | Publication date |
|---|---|
| CN105628225B (en) | 2018-12-25 |
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