CN203037284U - Integrated SF6 gas density, micro-water and temperature transmitter - Google Patents
Integrated SF6 gas density, micro-water and temperature transmitter Download PDFInfo
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- CN203037284U CN203037284U CN 201220576484 CN201220576484U CN203037284U CN 203037284 U CN203037284 U CN 203037284U CN 201220576484 CN201220576484 CN 201220576484 CN 201220576484 U CN201220576484 U CN 201220576484U CN 203037284 U CN203037284 U CN 203037284U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000013022 venting Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses an integrated SF6 gas density, micro-water and temperature transmitter. An inner cavity of a casing is provided with a gas cavity and a hollow cavity which is used for accommodating sensors, wherein the gas cavity and the hollow cavity are isolated from each other; the sensors include a density sensor, a micro-water sensor and a temperature sensor, are arranged in the hollow cavity which is used for accommodating the sensors and are communicated with the gas cavity; an interface communicated with the gas cavity is arranged on the casing, and a female joint with self-sealing function is arranged at the interface; a wire threading hole used for wiring is also arranged on the casing; the micro-water sensor and the density sensor are connected with the temperature sensor; current signals are output through a voltage and current amplifier connected with the temperature sensor; and wiring terminals are also arranged on the casing. With the transmitter of an integrated structure, online monitoring is realized, and meanwhile, the number of leak points of an SF6 high-voltage switchgear is not increased. An SF6 gas pressure value output by the transmitter is a current signal of a density value and is converted to a pressure value at 20 degrees by software, and the transmitter is less affected by the environment and is high in precision.
Description
Technical field
The utility model relates to a kind of realization SF
6The device of gas density, Wei Shui, on-line temperature monitoring, particularly a kind of integral type SF
6Gas density, Wei Shui, temperature transmitter.
Background technology
At present, most SF
6High-tension apparatus is not all realized state on_line monitoring and data acquisition and teletransmission, to SF
6The little water of gas and density are carried out on-line monitoring, can not only carry out effectively control to the insulating gas of high-tension apparatus in service, also can provide favourable foundation for the repair based on condition of component of high-tension apparatus simultaneously.Therefore to SF
6The real-time monitoring of the little water of gas and density has become the problem of electric system common concern.The SF of present domestic most manufacturers design exploitations
6Gas density and little water on-line monitoring system adopt pressure, temperature, 3 standalone sensors of little water to realize SF
6The measurement of density and little water, these 3 sensors are not that design is in the cavity of integral type.Therefore based on the on-line monitoring system of this structural design, can increase SF
6The gas leakage point, what the pressure transducer that adopts was exported simultaneously is a pressure signal, is subjected to the influence of environment bigger, so use the SF of this sensor
6On-line monitoring system ubiquity measuring error is big, phenomenons such as frequent false alarm.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and provide a kind of adopt integral structure, that impermeability is high, measuring accuracy is high, little integral type SF affected by environment
6Gas density, Wei Shui, temperature transmitter.
A kind of integral type SF
6Gas density, little water, temperature transmitter, include housing, be provided with the air cavity of mutual isolation and hold the cavity of sensor at the inner chamber of housing, described sensor includes density sensor, little water sensor, temperature sensor, sensor is arranged in the cavity that holds sensor, and each sensor all passes to the relevant information of obtaining air cavity gas mutually with air cavity, housing is provided with the interface of a ditch venting cavity, be provided with female joint with self-styled function at interface, on housing, also be provided with the through wires hole for wiring, little water sensor, density sensor links to each other with temperature sensor respectively, by the electric current and voltage amplifier output current signal that links to each other with temperature sensor, the connection terminal that the current signal with the output of electric current and voltage amplifier that also is provided with multichannel on housing communicates.
Integral type SF of the present utility model
6Gas density, Wei Shui, on-line temperature monitoring transmitter in use, insert SF with interface
6The air chamber of high voltage electric equipment is by integral type SF
6The signal of gas density, Wei Shui, the output of on-line temperature monitoring transmitter, value when conversion is modified to 20 ℃ after acquisition process, compare with the data of measuring with portable dew point hygrometer with the density monitor at scene, force value is the same, little water volume ratio is basically identical also, meets GB and industry standard.The design of integral structure and self-sealing joint has simultaneously reduced because of at SF
6Install on-Line Monitor Device additional on the high voltage electric equipment and increase the possibility of gas leakage risk, simultaneously because of SF
6High voltage electric equipment has been realized the on-line monitoring of density and little water, corresponding SF
6Gaseous tension be the current signal of a density value, affected by environment little, precision height, at present corresponding SF in the industry
6What gaseous tension was exported is a pressure signal, is subjected to the influence of environment bigger.
On housing, also be provided with the interface of another ditch venting cavity, be provided with male joint with self-styled function at interface.
Set up an interface at housing, can be used for the standby of the scene of testing.
The current signal of described electric current and voltage amplifier output is the current signal of 4-20mA signal, and described connection terminal is 4-20mA signal terminal.
In sum, the utility model following advantage compared to existing technology:
When 1, the transmitter of integral structure design has been realized on-line monitoring, can not increase SF again
6The leak point of high-tension switch gear.
2, the SF of transmitter output
6Gas pressure value is a density value current signal, is converted into 20 ℃ force value through software, and is affected by environment little, the precision height.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model embodiment.
Fig. 2 is the inner structure synoptic diagram of embodiment.
Fig. 3 is integral type SF
6The schematic diagram of gas density, Wei Shui, temperature transmitter.
Embodiment
Be described in more detail below in conjunction with the utility model of embodiment.
A kind of integral type SF
6Gas density, little water, temperature transmitter, include housing 1, be provided with the air cavity 2 of mutual isolation and hold the cavity 3 of sensor at the inner chamber of housing, described sensor includes density sensor 4, little water sensor 5, temperature sensor 6, sensor is arranged in the cavity that holds sensor, and each sensor all passes to the relevant information of obtaining air cavity gas mutually with air cavity, housing is provided with the interface of a ditch venting cavity, be provided with female joint 7 with self-styled function at interface, on housing, also be provided with the through wires hole 8 for wiring, little water sensor, density sensor links to each other with temperature sensor respectively, by the electric current and voltage amplifier that links to each other with temperature sensor 11 output 4-20mA current signals, on housing, also be provided with 4-20mA signal terminal 9 that the current signal with the output of electric current and voltage amplifier of multichannel communicates.On housing, also be provided with the interface of another ditch venting cavity, be provided with male joint 10 with self-styled function at interface.
Described female joint is the self-styled interface of I.S.S DN20, and male joint is: the self-styled interface of external thread DN20.Transmitter always has 7 connection terminals, and wherein 6 terminals are 3 road 4-20mA signal output terminals, and 1 terminal is the signal ground terminal.
Little water sensor in the present embodiment: adopt the little water sensor of Vailsla OY
Temperature sensor: adopt the PT100 thermal resistance, model is T19.10 1P01
WIKA Alexander Wiegand SE ﹠Co.KG company produces.
Density sensor: adopt German WIKA density sensor
It is same as the prior art that present embodiment is not stated part.
Claims (3)
1. integral type SF
6Gas density, little water, temperature transmitter, it is characterized in that: include housing, be provided with the air cavity of mutual isolation and hold the cavity of sensor at the inner chamber of housing, described sensor includes density sensor, little water sensor, temperature sensor, sensor is arranged in the cavity that holds sensor, and each sensor all passes to the relevant information of obtaining air cavity gas mutually with air cavity, housing is provided with the interface of a ditch venting cavity, be provided with female joint with self-styled function at interface, on housing, also be provided with the through wires hole for wiring, little water sensor, density sensor links to each other with temperature sensor respectively, by the electric current and voltage amplifier output current signal that links to each other with temperature sensor, the connection terminal that the current signal with the output of electric current and voltage amplifier that also is provided with multichannel on housing communicates.
2. integral type SF according to claim 1
6Gas density, Wei Shui, temperature transmitter is characterized in that: also be provided with the interface of another ditch venting cavity on housing, be provided with male joint with self-styled function at interface.
3. integral type SF according to claim 2
6Gas density, Wei Shui, temperature transmitter is characterized in that: the current signal of described electric current and voltage amplifier output is the current signal of 4-20mA signal, and described connection terminal is 4-20mA signal terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220576484 CN203037284U (en) | 2012-11-02 | 2012-11-02 | Integrated SF6 gas density, micro-water and temperature transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220576484 CN203037284U (en) | 2012-11-02 | 2012-11-02 | Integrated SF6 gas density, micro-water and temperature transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037284U true CN203037284U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220576484 Expired - Fee Related CN203037284U (en) | 2012-11-02 | 2012-11-02 | Integrated SF6 gas density, micro-water and temperature transmitter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535456A (en) * | 2014-09-30 | 2015-04-22 | 国家电网公司 | Novel sulfur hexafluoride gas density micro-water transmitter |
| CN105510821A (en) * | 2016-01-06 | 2016-04-20 | 江苏峰工电气科技有限公司 | High tension switchgear multifunctional monitoring device capable of on-line disassembly and assembly |
| CN105510820A (en) * | 2016-01-06 | 2016-04-20 | 江苏峰工电气科技有限公司 | Integrated monitoring device used for high tension switchgear |
| CN106932304A (en) * | 2017-05-15 | 2017-07-07 | 上海欧秒电力监测设备有限公司 | A kind of micro- water monitoring apparatus of density |
| CN110987286A (en) * | 2019-12-18 | 2020-04-10 | 吉林大学 | Ultrasonic air pressure detection device, method and system for low oxygen chamber |
| CN113125300A (en) * | 2021-04-12 | 2021-07-16 | 国网河北省电力有限公司衡水供电分公司 | Sulfur hexafluoride density quality transmission device and system with wireless transmission and transmitter |
-
2012
- 2012-11-02 CN CN 201220576484 patent/CN203037284U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535456A (en) * | 2014-09-30 | 2015-04-22 | 国家电网公司 | Novel sulfur hexafluoride gas density micro-water transmitter |
| CN105510821A (en) * | 2016-01-06 | 2016-04-20 | 江苏峰工电气科技有限公司 | High tension switchgear multifunctional monitoring device capable of on-line disassembly and assembly |
| CN105510820A (en) * | 2016-01-06 | 2016-04-20 | 江苏峰工电气科技有限公司 | Integrated monitoring device used for high tension switchgear |
| CN106932304A (en) * | 2017-05-15 | 2017-07-07 | 上海欧秒电力监测设备有限公司 | A kind of micro- water monitoring apparatus of density |
| CN110987286A (en) * | 2019-12-18 | 2020-04-10 | 吉林大学 | Ultrasonic air pressure detection device, method and system for low oxygen chamber |
| CN110987286B (en) * | 2019-12-18 | 2023-03-28 | 吉林大学 | Ultrasonic air pressure detection device, method and system for low oxygen chamber |
| CN113125300A (en) * | 2021-04-12 | 2021-07-16 | 国网河北省电力有限公司衡水供电分公司 | Sulfur hexafluoride density quality transmission device and system with wireless transmission and transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20181102 |