CN202166436U - Telemetering monitor for micro water content in SF6 gas - Google Patents
Telemetering monitor for micro water content in SF6 gas Download PDFInfo
- Publication number
- CN202166436U CN202166436U CN2011202888283U CN201120288828U CN202166436U CN 202166436 U CN202166436 U CN 202166436U CN 2011202888283 U CN2011202888283 U CN 2011202888283U CN 201120288828 U CN201120288828 U CN 201120288828U CN 202166436 U CN202166436 U CN 202166436U
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- gas
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- water content
- micro water
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Abstract
The utility model provides a telemetering monitor for micro water content in SF6 gas. The monitor includes a shell and a sensor pedestal. A closed empty cavity is arranged between the shell and the sensor pedestal. The sensor pedestal connects with a self-sealing joint on an SF6 breaker. A circuit board is disposed in the closed empty cavity between the shell and the sensor pedestal. A pressure sensor is installed on the sensor pedestal. A micro water content sensor is installed in the bottom of the sensor pedestal. The pressure sensor connects with a gas chamber of the self-sealing joint through a gas vent. An outgoing lead of the micro water content sensor connects with a circuit board through a lead hole. Signals collected by the sensor connect with the circuit board through a lead. SF6 gas density data, micro water content data and the like can be transferred remotely to a master control room after being processed. The telemetering monitor for micro water content in SF6 gas in the utility model detects and monitors the density of the SF6 gas, and at the same time, detects and monitors the micro water content in the SF6 gas, thereby making the running of the SF6 breaker safer and more reliable.
Description
Technical field:
The utility model relates to a kind of high-new detecting instrument metering device of high-voltage transforming system applies, and particularly a kind of high-voltage transforming system applies detects the instrument and meter device of SF6 gas moisture, pressure, the i.e. little water monitor of SF6 gas teletransmission.The utility model is intended to make the power transmission and transformation system detection level to create greater achievements, and makes that the operation of high voltage power transmission and transforming switchgear is safer, and is more reliable.
Background technology:
In high-voltage power power transformation system, generally use high-voltage electric switch unit SF6 isolating switch.And the high capacity make and break contact of SF6 isolating switch is relying on the protection of SF6 gaseous mediums constantly, and this SF6 gas is that every minute and second can not stop to escorting of isolating switch, and SF6 gas is being born patron saint's important duty to isolating switch.
Safe and reliable operation in order to ensure the SF6 isolating switch; The SF6 density monitor that tradition is used carries out continual detection to the SF6 gaseous state in the isolating switch; Paying close attention to the variation of SF6 gas density (20 ℃ time pressure); In case find the insufficient pressure of SF6 gas, the SF6 gas leakage has appearred, to replenish SF6 gas at any time.
In addition, to the quality of SF6 gas, particularly the micro-water content in the SF6 gas being detected, is one of measure that improves the breaker safe operation equally, is very necessary equally.
The utility model content:
The utility model purpose just is to provide a kind of, is used for detecting the instrument and meter device of the little water cut of SF6 gas, SF6 gas density pressure in the SF6 of the high-voltage transforming system isolating switch, i.e. the little water monitor of SF6 gas teletransmission.In the time of to the density pressure detection of SF6 gas and control; Little water cut to SF6 gas is kept watch on detection; In case the gas micro-water content that detects in the SF6 isolating switch exceeds standard (about 150ppmv), will take appropriate measures, guarantee safety and the reliability service of SF6 isolating switch.
For achieving the above object, the technical scheme that the utility model adopts is:
The little water monitor of a kind of SF6 gas teletransmission; It includes shell and sensor base, between shell and sensor base sealed hollow is arranged, and sensor base is joined with the self-enclosed joint that is arranged on the SF6 breaker body; Wherein, Between shell and sensor base, be provided with wiring board in the sealed hollow, on sensor base top pressure transducer be installed, the sensor base bottom is equipped with little water sensor; Pressure transducer joins through the self-enclosed joint air chamber of gas port and self-enclosed joint, and the extension line of little water sensor links to each other with wiring board through fairlead;
Further, on sensor base, be provided with elastic washer with self-enclosed joint joint.
The beneficial effect of the utility model:
1, the utility model is simple in structure, modern design, and it has filled up the blank of the little water monitor of no SF6 gas teletransmission.
2, the electrical principle of the utility model is, the measurement of occurring in nature relative humidity is fairly simple, but wants the many of difficulty relatively for the content detection of the little water in the SF6 gas.We adopt the high precision humidity sensor, in order to from SF6 gas, to gather moisture signal.Then, the faint humidity electric signal that collects is sent into the data processing wiring board of being made up of micro processor (MCU) and electron device thereof, therefrom carry out technique computes and handle.In the data processing wiring board of micro processor; The weak humidity information that at first will collect; Convert relative humidity into, and through micro processor data processing wiring board, with the temperature information that collects; Carry out accurate section's mathematical operations in the lump with the environmental pressure of SF6 gas, finally generate the micro-water content value in the SF6 gaseous environment.The digital data information of output is following:
1), the density value of SF6 gas (force value when being equivalent to 20 ℃, unit is MPa).
2), the micro-water content of SF6 gas (unit is ppmv).
3), the observed pressure value of SF6 gas (unit is MPa).
4), the temperature value under the actual motion environment (unit be ℃).
3, through the little water number digital signal after the micro processor processing; With other data message; With the canonical form of RS485 communications protocol, at a distance with the continual transmission output of the p.s. of cycle period once, 485 maximum communication distances can reach 1200 meters with paired cable.The utility model is host computer (central computer of supervisory control desk), and the information truly and reliably of reflection SF6 isolating switch running status is provided, and the supervisory control desk central computer is made keep watch on timely and control.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done further to specify.
In the accompanying drawing: 1, shell; 2, sensor base; 3, pressure transducer (it directly and wiring board 5 be connected; 4, little water sensor (extension line of little water sensor is delivered to wiring board 5 through fairlead 6); 5, wiring board; 6, fairlead; 7, self-enclosed joint (C type joint); 8, self-enclosed joint air chamber; 9, elastic washer.
As shown in Figure 1; During use; The utility model is positioned at the forefront of SF6 isolating switch, and it includes shell 1 and sensor base 2, between shell 1 and the sensor base 2 sealed hollow is arranged; Sensor base 2 is joined with the self-enclosed joint 7 that is arranged on the high-voltage power power transformation system ontology (SF6 isolating switch), on sensor base 2, is provided with elastic washer 9 with self-enclosed joint 7 joints; In shell 1 and 2 sealed hollow of sensor base, be provided with wiring board 5; Micro processor (MCU) and electron device thereof are installed on wiring board 5; On the top of sensor base 2 pressure transducer 3 is installed; Sensor base 2 bottoms are equipped with little water sensor 4; Pressure transducer 3 joins through the self-enclosed joint air chamber 8 of gas port and self-enclosed joint 7, and little water sensor 4 joins with the self-enclosed joint air chamber 8 of self-enclosed joint 7, and the extension line of little water sensor 4 links to each other with wiring board 5 through fairlead 6.
The utility model is through little water sensor 4, and pressure transducer 3 etc. with the humidity information of the gas in the SF6 isolating switch, pressure information etc., are sent into wiring board 5 with the form of electric signal, just microcomputer data processing circuitry plate.In microcomputer data processing circuitry plate; It is with electric pressure signal, little water power signal and the temperature signal of input; Carry out complicated section's mathematical operations and accurate data processing, last, the numerical data result that it will be after treatment is with the form of RS485; With paired cable long-distance transmissions to host computer (central supervisory control desk computer), make corresponding data monitoring and control by the host computer unification again.
Claims (2)
1. the little water monitor of SF6 gas teletransmission; Include shell (1) and sensor base (2); Between shell (1) and sensor base (2) sealed hollow is arranged; Sensor base (2) is joined with the self-enclosed joint (7) that is arranged on the SF6 breaker body; It is characterized in that: between shell (1) and sensor base (2), be provided with wiring board (5) in the sealed hollow, on sensor base (2) top pressure transducer (3) be installed, sensor base (2) bottom is equipped with little water sensor (4); Pressure transducer (3) joins through the self-enclosed joint air chamber (8) of gas port and self-enclosed joint (7), and the extension line of little water sensor (4) links to each other with wiring board (5) through fairlead (6).
2. the little water monitor of SF6 gas according to claim 1 teletransmission is characterized in that: go up with self-enclosed joint (7) joint in sensor base (2) and be provided with elastic washer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202888283U CN202166436U (en) | 2011-08-10 | 2011-08-10 | Telemetering monitor for micro water content in SF6 gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202888283U CN202166436U (en) | 2011-08-10 | 2011-08-10 | Telemetering monitor for micro water content in SF6 gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202166436U true CN202166436U (en) | 2012-03-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202888283U Expired - Fee Related CN202166436U (en) | 2011-08-10 | 2011-08-10 | Telemetering monitor for micro water content in SF6 gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202166436U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928021A (en) * | 2012-11-07 | 2013-02-13 | 沈阳汇博自动化仪表有限公司 | Bus-based high-voltage switch sulfur hexafluoride (SF6) compound sensor |
| CN104950085A (en) * | 2015-06-30 | 2015-09-30 | 中冶南方工程技术有限公司 | Rotary and flexibly-adjusted cylindrical gas sensor sealing device |
| CN106356246A (en) * | 2016-11-03 | 2017-01-25 | 韩润萍 | Online monitoring device for vacuum degree of arc extinguishing chamber of vacuum circuit breaker |
| CN113109518A (en) * | 2021-04-23 | 2021-07-13 | 浙江工业大学 | Gas water content detection device of sulfur hexafluoride circuit breaker |
-
2011
- 2011-08-10 CN CN2011202888283U patent/CN202166436U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928021A (en) * | 2012-11-07 | 2013-02-13 | 沈阳汇博自动化仪表有限公司 | Bus-based high-voltage switch sulfur hexafluoride (SF6) compound sensor |
| CN104950085A (en) * | 2015-06-30 | 2015-09-30 | 中冶南方工程技术有限公司 | Rotary and flexibly-adjusted cylindrical gas sensor sealing device |
| CN104950085B (en) * | 2015-06-30 | 2016-08-17 | 中冶南方工程技术有限公司 | A kind of cylindrical gas sensor seal of rotatable soft readjustment |
| CN106356246A (en) * | 2016-11-03 | 2017-01-25 | 韩润萍 | Online monitoring device for vacuum degree of arc extinguishing chamber of vacuum circuit breaker |
| CN113109518A (en) * | 2021-04-23 | 2021-07-13 | 浙江工业大学 | Gas water content detection device of sulfur hexafluoride circuit breaker |
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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 |
Granted publication date: 20120314 Termination date: 20160810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |