CN104913825A - Breaker and quality monitoring device for gas leakage - Google Patents
Breaker and quality monitoring device for gas leakage Download PDFInfo
- Publication number
- CN104913825A CN104913825A CN201510372435.3A CN201510372435A CN104913825A CN 104913825 A CN104913825 A CN 104913825A CN 201510372435 A CN201510372435 A CN 201510372435A CN 104913825 A CN104913825 A CN 104913825A
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- gas
- monitoring device
- isolating switch
- value
- leakage
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 33
- 239000007789 gas Substances 0.000 description 112
- 229910018503 SF6 Inorganic materials 0.000 description 31
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 31
- 238000012544 monitoring process Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Abstract
The invention discloses a breaker and a quality monitoring device for gas leakage applied to the breaker. The quality monitoring device for gas leakage comprises a sensor used for acquisition of gas parameter value in the breaker, a first calculating processer used for calculating quality of gas leakage in the breaker based on the gas parameter value and gas volume, and a display connected with the first calculating processer. The first calculating processer is connected with the sensor. When the quality monitoring device for gas leakage is applied, the gas parameter value is acquired by the sensor. The quality of gas leakage is calculated by the gas parameter value and the gas volume. Therefore, determination can be made whether the breaker is leaked or not and quality of gas leakage can be accurately obtained. The invention further discloses the breaker.
Description
Technical field
The present invention relates to power maintenance technology field, in particular, relate to a kind of isolating switch and Leakage Gas quality monitoring device.
Background technology
Primary cut-out (or claim high-voltage switch gear) it not only can cut off or no-load current in closed high circuit and load current; and when system jam by the effect of relay protection; cut off overload electric current and short-circuit current; it has quite perfect arc extinguishing structure and enough cutout abilities, can be divided into: oil-break (bulk oil circuit, oil-minimum breaker), sulfur hexafluoride breaker (SF6 isolating switch), vacuum circuit breaker, compressed-air circuit breaker etc.Wherein, be that the primary cut-out of insulating medium is widely used in electric system with SF6, because SF6 is a kind of high stability greenhouse gases, bring to environment and have a strong impact on, when SF6 isolating switch occurs to leak, in an atmosphere, the SF6 Leakage Gas therefore in SF6 isolating switch is isolating switch common deficiency to inner SF6 gas discharging.
SF6 gas in SF6 isolating switch is sealed in a changeless container, under rated pressure 20 DEG C time, it has certain density value, within the scope of the various enabled conditions that isolating switch runs, although the pressure of SF6 gas changes along with the change of temperature, but the density value of SF6 gas is constant all the time.Because the insulation of SF6 isolating switch and arc extinction performance depend on purity and the density of SF6 gas to a great extent, so, the detection of SF6 gas purity and the supervision of density are seemed particular importance.If adopt ordinarily manometer to monitor the leakage of SF6 gas, that will be hard to tell and leak owing to really existing or cause due to variation of ambient temperature the pressure of SF6 gas to change.In order to reach the object often monitoring density, national Specification, SF6 isolating switch should install tensimeter or SF6 air density meter and density monitor.
For whether monitoring SF6 isolating switch exists leakage, density monitor is usually arranged on SF6 isolating switch and monitors whether airtight container leaks gas, but, if equipment leaks, density monitor can only monitor the pressure change of SF6 gas, namely can only reflect SF6 gases did escape, and SF6 quantity of gas leakage can not be monitored.
In sum, how effective to carry out precise monitoring to SF6 quantity of gas leakage be current those skilled in the art's urgent problem.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of Leakage Gas quality monitoring device, quality can be leaked by gas-monitoring.
For achieving the above object, the invention provides following technical scheme:
A kind of Leakage Gas quality monitoring device, is applied to isolating switch, comprises:
Gather the sensor of the gas parameter value in described isolating switch;
First computation processor of Leakage Gas quality in isolating switch according to described gas parameter value and gas volume computing, described first computation processor is connected with described sensor;
The display be connected with described first computation processor.
Preferably, in above-mentioned monitoring device, described sensor comprises pressure transducer and temperature sensor.
Preferably, in above-mentioned monitoring device, described gas parameter value comprises initial gas temperature value, initial gas pressure value, current gas temperatures value, current gas force value.
Preferably, in above-mentioned monitoring device, also comprise the second computation processor calculating initial gas quality in described isolating switch according to described initial gas temperature value, described initial gas pressure value and described gas volume.
Preferably, in above-mentioned monitoring device, also humidity sensor is comprised.
Preferably, in above-mentioned monitoring device, described display is the display for showing described initial gas temperature value, described initial gas pressure value, described current gas temperatures value, described current gas force value, described gas volume, gas humidity, described initial gas quality and described Leakage Gas quality.
Present invention also offers a kind of isolating switch, comprise the Leakage Gas quality monitoring device as described in above-mentioned any one, described Leakage Gas quality monitoring device is connected with the density monitor on described isolating switch.
As can be seen from technique scheme, a kind of Leakage Gas quality monitoring device provided by the present invention, is applied to isolating switch, comprises: the sensor gathering the gas parameter value in described isolating switch; First computation processor of Leakage Gas quality in isolating switch according to described gas parameter value and gas volume computing, described first computation processor is connected with described sensor; The display be connected with described first computation processor.
When applying a kind of Leakage Gas quality monitoring device provided by the invention, by sensor, gas parameter value is gathered, and according to gas parameter value and gas volume computing Leakage Gas quality, can not only judge whether isolating switch leaks, can also accurately obtain Leakage Gas quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
A kind of Leakage Gas quality monitoring device schematic diagram that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, a kind of Leakage Gas quality monitoring device schematic diagram that Fig. 1 provides for the embodiment of the present invention.
In a kind of embodiment, a kind of Leakage Gas quality monitoring device is provided, is applied to isolating switch, comprise sensor 101, first computation processor 103 and display 104.
Concrete, Leakage Gas quality monitoring device is measured the insulating gas in isolating switch, and the insulating gas in common isolating switch is SF
6.Sensor 101 is for gathering the gas parameter value in described isolating switch, and further, sensor 101 comprises temperature sensor and pressure transducer.In addition, Leakage Gas quality monitoring device also comprises humidity sensor.Described gas parameter value comprises initial gas temperature value, initial gas pressure value, current gas temperatures value, current gas force value.Leakage Gas quality monitoring device is connected with isolating switch, and concrete is connected with the density monitor 102 on isolating switch for sensor 101, and object is the monitoring carrying out in all directions to the gas of circuit breaker internal, improves the accuracy rate of monitoring.
First computation processor 103 of Leakage Gas quality in isolating switch according to described current gas parameter value and gas volume computing, described first computation processor 103 is connected with described sensor 101.Sensor 101 herein and the connected mode of the first computation processor 103 are electricity connected mode.Concrete, it is single-chip microcomputer that pressure and temperature two-way simulating signal are introduced the first computation processor 103, first computation processor 103 by two-way A/D by sensor 101.The current gas temperatures value that collects and current gas force value through the analytical calculation of program, are obtained Leakage Gas quality, send Leakage Gas quality to display afterwards and show by single-chip microcomputer.
In order to make staff conveniently compare initial gas parameters and current gas parameter, Leakage Gas quality monitoring device also comprises the storer of storing initial gas parameter value.
Further, for the ease of understanding the change of gas in isolating switch before and after gas leakage clearly, also comprise the second computation processor calculating initial gas quality in described isolating switch according to described initial gas temperature value, described initial gas pressure value and described gas volume.Initial gas quality and quantity of gas leakage all in known cases, can derive the quality of remaining insulating gas in the rear isolating switch of gas leakage.
It is pointed out that the first computation processor can, for identical computation processor, also can be different computation processors, all within protection domain with the second computation processor.
Further, carry out setting input for the ease of user to initial gas parameter, Leakage Gas quality monitoring device also comprises keyboard 105, facilitates staff to input the initial parameter of gas in isolating switch.
For the ease of showing various gas parameter and result of calculation, also comprise the display 104 be connected with described first computation processor.Display 104 can be LCD display, can be also OLED display or other display screens that can show numeral, all within protection domain.Further, observe the gas parameter in isolating switch for the ease of staff, described display is the display for showing described initial gas temperature value, described initial gas pressure value, described current gas temperatures value, described current gas force value, described gas volume, gas humidity, described initial gas quality and described Leakage Gas quality.
For strengthening SF6 gas restricted mechanism, realize the supervision and management of SF6 gas overall process, provided by the invention a kind of can the device of Real-Time Monitoring SF6 Leakage Gas quality, this device can Real-Time Monitoring SF6 Leakage Gas quality, SF6 humidity, gaseous tension and gas volume, slip can be shown, later stage by data upload to Control Room, for maintenance provides reliable basis, can realize the fine-grained management to SF6 gas.
Leakage Gas quality provided by the invention by the collection of sensor to gas parameter value, and calculates Leakage Gas quality according to gas parameter value, can not only judge whether isolating switch leaks, can also accurately obtain Leakage Gas quality.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a Leakage Gas quality monitoring device, is applied to isolating switch, it is characterized in that, comprising:
Gather the sensor of the gas parameter value in described isolating switch;
First computation processor of Leakage Gas quality in isolating switch according to described gas parameter value and gas volume computing, described first computation processor is connected with described sensor;
The display be connected with described first computation processor.
2. monitoring device as claimed in claim 1, it is characterized in that, described sensor comprises pressure transducer and temperature sensor.
3. monitoring device as claimed in claim 2, it is characterized in that, described gas parameter value comprises initial gas temperature value, initial gas pressure value, current gas temperatures value, current gas force value.
4. monitoring device as claimed in claim 3, is characterized in that, also comprise the second computation processor calculating initial gas quality in described isolating switch according to described initial gas temperature value, described initial gas pressure value and described gas volume.
5. the monitoring device as described in any one of Claims 1-4, is characterized in that, also comprises humidity sensor.
6. monitoring device as claimed in claim 5, it is characterized in that, described display is the display for showing described initial gas temperature value, described initial gas pressure value, described current gas temperatures value, described current gas force value, described gas volume, gas humidity, described initial gas quality and described Leakage Gas quality.
7. an isolating switch, is characterized in that, comprises the Leakage Gas quality monitoring device as described in any one of claim 1 to 6, and described Leakage Gas quality monitoring device is connected with the density monitor on described isolating switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510372435.3A CN104913825A (en) | 2015-06-30 | 2015-06-30 | Breaker and quality monitoring device for gas leakage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510372435.3A CN104913825A (en) | 2015-06-30 | 2015-06-30 | Breaker and quality monitoring device for gas leakage |
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| CN104913825A true CN104913825A (en) | 2015-09-16 |
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| CN201510372435.3A Pending CN104913825A (en) | 2015-06-30 | 2015-06-30 | Breaker and quality monitoring device for gas leakage |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105865556A (en) * | 2016-03-10 | 2016-08-17 | 国网江西省电力科学研究院 | A detection method for the quantity of sulfur hexafluoride gas leakage in a GIS |
| CN105932590A (en) * | 2016-06-08 | 2016-09-07 | 国网江苏省电力公司检修分公司 | Pressure and temperature-based SF6 gas online state evaluation method |
| CN108871490A (en) * | 2018-07-20 | 2018-11-23 | 国网江西省电力有限公司电力科学研究院 | Sulfur hexafluoride gas Calculational Methods on Leakage and monitoring device in a kind of substation |
| CN114341835A (en) * | 2019-09-04 | 2022-04-12 | 西门子能源环球有限责任两合公司 | Gas monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105865556A (en) * | 2016-03-10 | 2016-08-17 | 国网江西省电力科学研究院 | A detection method for the quantity of sulfur hexafluoride gas leakage in a GIS |
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| CN108871490A (en) * | 2018-07-20 | 2018-11-23 | 国网江西省电力有限公司电力科学研究院 | Sulfur hexafluoride gas Calculational Methods on Leakage and monitoring device in a kind of substation |
| CN114341835A (en) * | 2019-09-04 | 2022-04-12 | 西门子能源环球有限责任两合公司 | Gas monitoring system |
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Application publication date: 20150916 |