CN107807209A - A kind of micro- water density monitoring device of gas - Google Patents
A kind of micro- water density monitoring device of gas Download PDFInfo
- Publication number
- CN107807209A CN107807209A CN201711156177.0A CN201711156177A CN107807209A CN 107807209 A CN107807209 A CN 107807209A CN 201711156177 A CN201711156177 A CN 201711156177A CN 107807209 A CN107807209 A CN 107807209A
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- Prior art keywords
- sampler
- micro
- water density
- gas
- vavuum pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 238000012806 monitoring device Methods 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 90
- 238000009434 installation Methods 0.000 claims abstract description 28
- 238000010586 diagram Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Gas-Insulated Switchgears (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application embodiment discloses a kind of micro- water density monitoring device of gas, including：First sampler, the second sampler, the first vavuum pump, the second vavuum pump, pipeline and micro- water density sensor；Wherein, the first adpting flange of first sampler is connected with the Single port of the air chamber of gases at high pressure insulated switching installation；First adpting flange of second sampler is connected with the another port of the air chamber of gases at high pressure insulated switching installation；One end of the pipeline is connected with the second adpting flange of first sampler, and the other end of the pipeline is connected with the second adpting flange of second sampler；First vavuum pump is arranged in the second adpting flange of first sampler, and second vavuum pump is arranged in the second adpting flange of second sampler；Wherein, first vavuum pump and the second vavuum pump installation direction are opposite；Micro- water density sensor, for obtaining micro- water density information of gas in sampler in real time.
Description
Technical field
The application is related to micro- water density technical field of gas, micro- water density monitoring device of more particularly to a kind of gas.
Background technology
SF6Gas has excellent insulating properties and arc extinction performance, is widely used in gases at high pressure insulation at this stage and opens
Equipment (GIS) is closed, is ideal insulation and arc-extinguishing medium in normal conditions.The height of its operating pressure and micro-water content
The low safe and reliable work on equipment has directly influence, if SF6Gas leakage causes micro- water in density decline or gas
Content overproof, high voltage electric equipment will have potential safety hazard and even result in accident.Therefore, to SF in GIS6Gas it is close
Degree and micro-water content be monitored for reduce accident generation and hazard to person have a very important role.
, be to the SF of its inside because GIS is totally enclosed combined electrical apparatus6Gas, which is monitored, need to use sampler, adopt
Sample device cavity is connected with GIS cavitys, SF in sampler6Micro- water density information can reflect SF inside GIS substantially6The situation of gas.
As shown in figure 1, it is traditional gas small water density monitoring device schematic diagram.Sampler is using aluminium bar through technique systems such as cutting drillings
Make.The adpting flange of sampler is connected with GIS bodies, in the presence of pressure difference, SF in GIS6Gas will automatically flow into sampling
Device cavity, micro- water density sensor connects with sampling cavity, so micro- water density sensor can detect sampler cavity
The micro- water and density information of interior gas, these information are through sensor cable teletransmission to transformer station's background computer, transformer station's O＆M
Personnel can recognize SF in GIS in real time6Micro- water density situation of gas.
From above-mentioned technical proposal monitoring process, sampler cavity volume it is smaller and installation post-sampling device in gas with
Gas can not form convection current in GIS cavitys.So SF in sampler6Micro- water density information of gas can not really reflect
SF in GIS cavitys6Micro- water density situation of gas.It is assumed that GIS in the position away from sampler because of the reason SF such as reveal or make moist6
Gas micro water content is changed, SF in sampler6Gas micro water content can't change at once.This has resulted in micro-
Water density monitoring is not real-time but relatively lags behind.
The content of the invention
The purpose of the application embodiment is to provide a kind of micro- water density monitoring device of gas, by increase vavuum pump and
Pipeline, gas in sampler is set to form flowing with gas in the cavity of gases at high pressure insulated switching installation.Make what sensor measured
Real-time micro- water density situation of the authentic and valid reflection gases at high pressure insulated switching installation internal gas of micro- water density information energy.
To achieve the above object, the application embodiment provides a kind of micro- water density monitoring device of gas, including：
First sampler, the second sampler, the first vavuum pump, the second vavuum pump, pipeline and micro- water density sensor；Its
In,
First adpting flange of first sampler is connected with the Single port of the air chamber of gases at high pressure insulated switching installation；
First adpting flange of second sampler is connected with the another port of the air chamber of gases at high pressure insulated switching installation；
One end of the pipeline is connected with the second adpting flange of first sampler, the other end of the pipeline and institute
The second adpting flange for stating the second sampler is connected；First vavuum pump is arranged on the second connection method of first sampler
In orchid, second vavuum pump is arranged in the second adpting flange of second sampler；Wherein, first vavuum pump and
The second vavuum pump installation direction is opposite；
Micro- water density sensor, for obtaining micro- water density information of gas in sampler in real time.
Preferably, first vavuum pump causes the gas in first sampler to flow into the pipe for providing power
In road；Second vavuum pump is used to provide in gas inflow second sampler that power causes in the pipeline.
Preferably, second vavuum pump causes the gas in second sampler to flow into the pipe for providing power
In road；First vavuum pump is used to provide in gas inflow first sampler that power causes in the pipeline.
Preferably, micro- water density sensor includes：First micro- water density sensor and second micro- water density sensor；
Wherein, described first micro- water density sensor is used for the micro- water density information for obtaining gas in the first sampler in real time；Described
Two micro- water density sensors are used for the micro- water density information for obtaining gas in the second sampler in real time.
Preferably, micro- water density sensor is connected by sensor cable with transformer station background computer.
Therefore compared with prior art, the technical program makes gas in sampler by increasing vavuum pump and pipeline
Body is formed with gas in the cavity of gases at high pressure insulated switching installation to be flowed.It ensure that gas micro water content and high pressure in sampler
Micro-water content is identical in the air chamber of gas-insulated switchgear so that micro- water information that sensor measures is gases at high pressure insulation
The real micro-water content information of gas indoor gas of switchgear.If gas is SF6, then it is discovery SF in time6The micro- water of gas contains
Measure it is exceeded provide reliable guarantee, avoid the security incident thus triggered.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the application embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments described in the application, for those of ordinary skill in the art, is not paying creative labor
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is traditional gas small water density monitoring device schematic diagram；
Fig. 2 is a kind of micro- water density monitoring device schematic diagram for gas that the embodiment of the present application proposes.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in mode is applied, the technical scheme in the application embodiment is clearly and completely described, it is clear that described
Embodiment is only a part of embodiment of the application, rather than whole embodiments.Based on the embodiment party in the application
Formula, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all should
When the scope for belonging to the application protection.
A kind of as shown in Fig. 2 micro- water density monitoring device schematic diagram of the gas proposed for the embodiment of the present application.Including：
First sampler 201, the second sampler 202, the first vavuum pump 203, the second vavuum pump 204, pipeline 205 and Wei Shui
Density sensor；Wherein,
First adpting flange of first sampler 201 and the Single port phase of the air chamber of gases at high pressure insulated switching installation
Even；First adpting flange of second sampler 202 is connected with the another port of the air chamber of gases at high pressure insulated switching installation.
One end of the pipeline 205 is connected with the second adpting flange of first sampler 201, the pipeline 205
The other end is connected with the second adpting flange of second sampler 202；First vavuum pump 203 is arranged on described first and adopted
In second adpting flange of sample device 201, second vavuum pump 204 is arranged on the second adpting flange of second sampler
It is interior；Wherein, first vavuum pump 203 is opposite with the installation direction of the second vavuum pump 204.
Micro- water density sensor, for obtaining micro- water density information of gas in sampler in real time.
In fig. 2, the first adpting flange of the first sampler 201 is located at the lower left of shown sampler cavity, at this
Adpting flange is connected with a port of gases at high pressure insulated switching installation, passes through pressure difference gases at high pressure insulated switching installation
Interior gas is flowed into the cavity of the first sampler 201 by the first adpting flange.Gases at high pressure insulated switching installation at this
Port as sampled point 1.
Second adpting flange of the first sampler 201 is located at the upper right side of shown sampler cavity, second adpting flange
One end for connecting line 205.When the first vavuum pump 203 is set in the second adpting flange of the first sampler, the vacuum
The entrance of pump 203 is in lower outlet in upper, the such offer of first vavuum pump 203 power so that the gas of the intracavitary of the first sampler
In feed line 205.The other end of pipeline 205 is connected with the second adpting flange of the second sampler 202.Second sampler 202
The second adpting flange be located at the upper right side of shown sampler cavity, set in the second adpting flange of the second sampler 202
During the second vavuum pump 204, for the entrance of the vavuum pump 204 in upper outlet under, such second vavuum pump 204 provides power so that
Gas in pipeline 205 is flowed into the cavity of the second sampler 202.The first adpting flange and high pressure gas of second sampler 202
The another port of body insulated switching installation is connected.The port of gases at high pressure insulated switching installation at this is as sampled point 2.
After installation, the first vavuum pump and the second vavuum pump are run simultaneously, the cavity of gases at high pressure insulated switching installation
Interior SF6Gas will be flowed in the presence of pump by sampled point 1 through the first sampler 201, pipeline 205, the second sampler 202
To sampled point 2.Sampled point 1 and sampled point 2 are in the air chamber of same gases at high pressure insulated switching installation, are connected respectively to high pressure gas
The diverse location of the same air chamber of body insulated switching installation.Gas in so whole air chamber is just constantly in circulation status.Ensure
Gas micro water content is with micro-water content in the air chamber of gases at high pressure insulated switching installation suitable in sampler.
For the technical program, vavuum pump and pipe-line system are added on the basis of legacy sampler, and sample
The always paired use of device.Also, from the present embodiment, first vavuum pump 203, which is used to providing power, causes described the
Gas in one sampler 201 is flowed into the pipeline 205；Second vavuum pump 204 causes the pipe for providing power
Gas in road 205 is flowed into second sampler 202.The effect of two vavuum pumps can exchange in fact, that is,：Described
Two vavuum pumps 204 are used to provide in the gas inflow pipeline that power causes in second sampler 202；Described first is true
Empty pump 203 is used to provide in gas inflow first sampler 201 that power causes in the pipeline.As long as two vavuum pumps
Installation direction on the contrary, the air chamber of gases at high pressure insulated switching installation communicates with two samplers and pipeline, and in vacuum
Gas has been at flow regime in the presence of pump.
As shown in Figure 2, micro- water density sensor includes：First micro- 206 and second micro- water density of water density sensor
Sensor 206 '；Wherein, described first micro- water density sensor 206 be used in real time obtain the first sampler 201 in gas it is micro-
Water density information；Second micro- water density sensor 206 ' is used for the micro- watertight for obtaining gas in the second sampler 202 in real time
Spend information.First micro- 206 and second micro- water density sensor 206 ' of water density sensor passes through sensor cable and power transformation respectively
Background computer of standing is connected.Micro- water density information that two sensors detect in real time is uploaded to background computer, realizes power transformation
Stand to SF6The real micro-water content information of gas, to find SF in time6Gas micro water content is exceeded to provide reliable guarantee, keeps away
The security incident thus triggered is exempted from.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application has many deformations
With change without departing from spirit herein, it is desirable to which appended claim includes these deformations and changed without departing from the application
Spirit.
Claims (5)
- A kind of 1. micro- water density monitoring device of gas, it is characterised in that including：First sampler, the second sampler, the first vavuum pump, the second vavuum pump, pipeline and micro- water density sensor；Wherein,First adpting flange of first sampler is connected with the Single port of the air chamber of gases at high pressure insulated switching installation；It is described First adpting flange of the second sampler is connected with the another port of the air chamber of gases at high pressure insulated switching installation；One end of the pipeline is connected with the second adpting flange of first sampler, the other end of the pipeline and described the Second adpting flange of two samplers is connected；First vavuum pump is arranged on the second adpting flange of first sampler Interior, second vavuum pump is arranged in the second adpting flange of second sampler；Wherein, first vavuum pump and institute It is opposite to state the second vavuum pump installation direction；Micro- water density sensor, for obtaining micro- water density information of gas in sampler in real time.
- 2. micro- water density monitoring device as claimed in claim 1, it is characterised in that first vavuum pump is used to provide power So that the gas in first sampler is flowed into the pipeline；Second vavuum pump causes the pipe for providing power Gas in road is flowed into second sampler.
- 3. micro- water density monitoring device as claimed in claim 1, it is characterised in that second vavuum pump is used to provide power So that the gas in second sampler is flowed into the pipeline；First vavuum pump causes the pipe for providing power Gas in road is flowed into first sampler.
- 4. micro- water density monitoring device as claimed in claim 1, it is characterised in that micro- water density sensor includes：The One micro- water density sensor and second micro- water density sensor；Wherein, described first micro- water density sensor is used to obtain in real time Micro- water density information of gas in first sampler；Second micro- water density sensor is used to obtain in the second sampler in real time Micro- water density information of gas.
- 5. micro- water density monitoring device as claimed in claim 1, it is characterised in that micro- water density sensor passes through sensing Device cable is connected with transformer station background computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711156177.0A CN107807209B (en) | 2017-11-20 | 2017-11-20 | Micro-water density monitoring device for gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711156177.0A CN107807209B (en) | 2017-11-20 | 2017-11-20 | Micro-water density monitoring device for gas |
Publications (2)
| Publication Number | Publication Date |
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| CN107807209A true CN107807209A (en) | 2018-03-16 |
| CN107807209B CN107807209B (en) | 2024-05-14 |
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| CN201711156177.0A Active CN107807209B (en) | 2017-11-20 | 2017-11-20 | Micro-water density monitoring device for gas |
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050092109A1 (en) * | 2002-10-03 | 2005-05-05 | Albro Thomas G. | Method and apparatus for the collection of samples |
| CN2704841Y (en) * | 2004-06-18 | 2005-06-15 | 长沙三德实业有限公司 | Volume fixing and closed loop cyclic gas analyzer of sulfur determiner |
| CN201277937Y (en) * | 2008-10-28 | 2009-07-22 | 山东泰开自动化有限公司 | SF6 gas small water density synthetic on-line monitoring system |
| CN201867326U (en) * | 2010-11-17 | 2011-06-15 | 郑州光力科技股份有限公司 | Sulfur hexafluoride (SF6) gas sampling detection device |
| CN102401834A (en) * | 2011-04-26 | 2012-04-04 | 中南大学 | Multi-channel on-line sampling and sample introducing method for high-temperature high-thickness liquid material |
| CN102507649A (en) * | 2011-12-29 | 2012-06-20 | 沈阳仪表科学研究院 | SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device |
| CN203101118U (en) * | 2013-03-15 | 2013-07-31 | 太仓创造电子有限公司 | Novel non-pressure sampling system |
| CN203216523U (en) * | 2013-03-22 | 2013-09-25 | 朗松珂利(上海)仪器仪表有限公司 | Displacement type gas chamber for online monitoring of moisture content and density of SF6 gas |
| CN103512921A (en) * | 2013-08-01 | 2014-01-15 | 浙江工商大学 | Intelligent electronic nose system based device and method for analyzing freshness of pear |
| CN204269439U (en) * | 2014-12-12 | 2015-04-15 | 广西电网有限责任公司河池供电局 | Detect the online harmless sampling apparatus of sulfur hexafluoride decomposition gas |
| CN105628456A (en) * | 2015-12-18 | 2016-06-01 | 杭州同孚环保科技有限公司 | Field air sampling device with air current circulation |
| CN106123502A (en) * | 2016-06-16 | 2016-11-16 | 国网新疆电力公司检修公司 | 750 kilovolts of GIS excessive water content processing methods |
| CN205691995U (en) * | 2016-06-16 | 2016-11-16 | 国网新疆电力公司检修公司 | The composite control apparatus administered for 750 kilovolts of GIS air chamber excessive water content |
| CN206004206U (en) * | 2016-08-30 | 2017-03-08 | 山东惠工电气股份有限公司 | SF in a kind of GIS device6On-line period device |
| CN106501447A (en) * | 2016-10-14 | 2017-03-15 | 国网江西省电力公司电力科学研究院 | A kind of method that sulfur hexafluoride gas humidity is accurately measured online in GIS transformer stations |
| CN206192402U (en) * | 2016-11-14 | 2017-05-24 | 三峡大学 | Gaseous little water of SF6, density on -line monitoring system |
| CN207472852U (en) * | 2017-11-20 | 2018-06-08 | 北京国网富达科技发展有限责任公司 | A kind of micro- water density monitoring device of gas |
-
2017
- 2017-11-20 CN CN201711156177.0A patent/CN107807209B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050092109A1 (en) * | 2002-10-03 | 2005-05-05 | Albro Thomas G. | Method and apparatus for the collection of samples |
| CN2704841Y (en) * | 2004-06-18 | 2005-06-15 | 长沙三德实业有限公司 | Volume fixing and closed loop cyclic gas analyzer of sulfur determiner |
| CN201277937Y (en) * | 2008-10-28 | 2009-07-22 | 山东泰开自动化有限公司 | SF6 gas small water density synthetic on-line monitoring system |
| CN201867326U (en) * | 2010-11-17 | 2011-06-15 | 郑州光力科技股份有限公司 | Sulfur hexafluoride (SF6) gas sampling detection device |
| CN102401834A (en) * | 2011-04-26 | 2012-04-04 | 中南大学 | Multi-channel on-line sampling and sample introducing method for high-temperature high-thickness liquid material |
| CN102507649A (en) * | 2011-12-29 | 2012-06-20 | 沈阳仪表科学研究院 | SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device |
| CN203101118U (en) * | 2013-03-15 | 2013-07-31 | 太仓创造电子有限公司 | Novel non-pressure sampling system |
| CN203216523U (en) * | 2013-03-22 | 2013-09-25 | 朗松珂利(上海)仪器仪表有限公司 | Displacement type gas chamber for online monitoring of moisture content and density of SF6 gas |
| CN103512921A (en) * | 2013-08-01 | 2014-01-15 | 浙江工商大学 | Intelligent electronic nose system based device and method for analyzing freshness of pear |
| CN204269439U (en) * | 2014-12-12 | 2015-04-15 | 广西电网有限责任公司河池供电局 | Detect the online harmless sampling apparatus of sulfur hexafluoride decomposition gas |
| CN105628456A (en) * | 2015-12-18 | 2016-06-01 | 杭州同孚环保科技有限公司 | Field air sampling device with air current circulation |
| CN106123502A (en) * | 2016-06-16 | 2016-11-16 | 国网新疆电力公司检修公司 | 750 kilovolts of GIS excessive water content processing methods |
| CN205691995U (en) * | 2016-06-16 | 2016-11-16 | 国网新疆电力公司检修公司 | The composite control apparatus administered for 750 kilovolts of GIS air chamber excessive water content |
| CN206004206U (en) * | 2016-08-30 | 2017-03-08 | 山东惠工电气股份有限公司 | SF in a kind of GIS device6On-line period device |
| CN106501447A (en) * | 2016-10-14 | 2017-03-15 | 国网江西省电力公司电力科学研究院 | A kind of method that sulfur hexafluoride gas humidity is accurately measured online in GIS transformer stations |
| CN206192402U (en) * | 2016-11-14 | 2017-05-24 | 三峡大学 | Gaseous little water of SF6, density on -line monitoring system |
| CN207472852U (en) * | 2017-11-20 | 2018-06-08 | 北京国网富达科技发展有限责任公司 | A kind of micro- water density monitoring device of gas |
Non-Patent Citations (1)
| Title |
|---|
| 张欣 等: "SF6 电气设备中水分控制标准的研究", 《高电压技术》, vol. 43, no. 1, pages 240 * |
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| CN107807209B (en) | 2024-05-14 |
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