CN105954069B - SF in electrical equipment6Solid decomposition product sampler - Google Patents
SF in electrical equipment6Solid decomposition product sampler Download PDFInfo
- Publication number
- CN105954069B CN105954069B CN201610446720.XA CN201610446720A CN105954069B CN 105954069 B CN105954069 B CN 105954069B CN 201610446720 A CN201610446720 A CN 201610446720A CN 105954069 B CN105954069 B CN 105954069B
- Authority
- CN
- China
- Prior art keywords
- filter membrane
- upper cover
- lower bottom
- bottom base
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 14
- 239000012528 membrane Substances 0.000 claims abstract description 28
- 239000007787 solid Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 6
- 230000007547 defect Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- 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
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
Abstract
SF in a kind of electrical equipment of present invention offer6Solid decomposition product sampler, including hollow lower bottom base and upper cover, the two are threadedly coupled, and sealing ring is equipped at connecting end surface, and the bottom of lower bottom base is equipped with gas outlet, and upper lid is equipped with air inlet, it is characterised in that：Filter membrane and holder are added, wherein holder is supported on the boss of lower bottom base inner wall upper end, and filter membrane is placed on holder, and the sealed circle of the step boss on upper cover inner wall is pressed on filter membrane；The intracavity diameter that upper cover is docked with lower bottom base is d1, the height of the bottom surface of upper cover apart from filter membrane is h1, the bottom surface of the inner cavity of lower bottom base and holder constitutes funneling cavities, and the top half of the cavity is cylindrical, a diameter of d1, highly be h2, middle part is in a circular table shape, is highly h3, taper be 45 °, air inlet inner wall be equipped with screw thread, screw pitch 3mm, depth 2mm.The internal diameter of gas outlet and air inlet is d2, and h1=h2, 2h3=d1‑d2.The present invention, which need not disintegrate to equipment, can be realized the collection of solid particle, function admirable.
Description
Technical field
SF in a kind of electrical equipment of present invention offer6Solid decomposition product sampler, belongs to SF6Gas collection technical field.
Background technology
SF6Gas is widely used in electrical because of the chemical property of its stabilization and the advantages that excellent insulation arc extinction performance
Equipment.When defect failure occurs for equipment, SF6Gas will decompose, and reaction is participated in when having metal electrode or solid insulating material
When, it will produce solid decomposition product (such as metal fluoride, metal oxide), these solid particles or be distributed in SF6Gas
In, or it is scattered in equipment interior surface.In general, for SF in collecting device6Solid decomposition product, it is necessary to which equipment is solved
Body, this can only be in the case where equipment fault defect be extremely serious.For fault severity level be not up to disintegrate equipment, then without
Method is collected solid decomposition product and is analyzed.
Invention content
The object of the present invention is to provide it is a kind of can solve the above problems, need not be disintegrated to equipment can be to SF6
Solid decomposition product is collected, SF in the electrical equipment of excellent working performance6Solid decomposition product sampler.Its technical solution
For：
SF in a kind of electrical equipment6Solid decomposition product sampler, including hollow lower bottom base and upper cover, the two screw thread connect
It connects, sealing ring is equipped at connecting end surface, the bottom of lower bottom base is equipped with gas outlet, and upper lid is equipped with air inlet, it is characterised in that：Under
Pedestal and upper cover material selection polytetrafluoroethylene (PTFE)；Add filter membrane and holder, wherein filter membrane uses aperture to have for 0.45 μm
Machine film, holder are supported on the boss of lower bottom base inner wall upper end, and the stomata of a diameter of 2mm, filter membrane are evenly equipped on holder
It is placed on holder, the sealed circle of the step boss on upper cover inner wall is pressed on filter membrane；Upper cover is docked interior with lower bottom base
Chamber diameter is d1, the height of the bottom surface of upper cover apart from filter membrane is h1, the inner cavity of lower bottom base and the bottom surface of holder constitute funnel-form
The top half of cavity, the cavity is cylindrical, a diameter of d1, highly be h2, middle part is in a circular table shape, is highly h3, taper be
45 °, the internal diameter of gas outlet and air inlet is d2, and h1=h2, 2h3=d1-d2, the vapor permeation area of filter membraneInto
The inner wall of gas port is equipped with screw thread, screw pitch 3mm, depth 2mm.
SF in the electrical equipment6Solid decomposition product sampler, diameter d1For 20-30mm, internal diameter d2For 5-7mm,
Height h1It is highly h for 5-6mm2For 5-6mm, height h3For 8-10mm.
Compared with prior art, the present invention the advantage is that：
1, various pieces in the screw thread and cavity that the frustum cone structure of 45 ° of cone angles, air inlet inner wall are arranged below sampler
Organic cooperation of size so that after filtered air-flow enters sampler, vortex reaches optimum state above filter membrane 6,
Solid particle is set more uniformly to be attached on filter membrane.
2, filter membrane selects aperture for 0.45 μm of organic film, can utmostly intercept solid particle and be unlikely to cause
Particle blocks the micropore of organic film；Sampler material uses polytetrafluoroethylene (PTFE), as the SF of certain pressure6Gas by when, have
Certain tolerance intensity, and material will not interfere influence to sample composition analysis.
3, it need not disintegrate to equipment, work as SF6When gas passes through solid air-sampler, the solid that is suspended in gas
Grain is trapped on the filter membrane in sampler, is analyzed and researched by the solid particulate components to filter membrane surface, you can is understood
SF when equipment fault6Decompose the solid decomposition product generated, excellent working performance.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
In figure：1, lower bottom base 2, upper cover 3, sealing ring 4, air inlet 5, gas outlet 6, filter membrane 7, holder 8, gas
Hole
Specific implementation mode
In the embodiment shown in fig. 1：The lower bottom base 1 and upper cover 2 of polytetrafluoroethylene (PTFE) material, the two are threadedly coupled, connection
Endface is equipped with sealing ring 3, and the bottom of lower bottom base 1 is equipped with gas outlet 5, and upper cover 2 is equipped with air inlet 4, and the inner wall of air inlet 4 is set
There are screw thread, screw pitch 3mm, depth 2mm, holder 7 to be supported on the boss of 1 inner wall upper end of lower bottom base, is evenly equipped on holder 7 straight
Diameter is the stomata 8 of 2mm, and filter membrane 6 uses aperture for 0.45 μm of organic film, is placed on holder 7, the platform on 2 inner wall of upper cover
The sealed circle of stepwise boss 3 is pressed on filter membrane 6.
The intracavity diameter d that upper cover 2 is docked with lower bottom base 11For 25mm, the height h of the bottom surface of upper cover 2 apart from filter membrane 61For,
The inner cavity of lower bottom base 1 constitutes funneling cavities with the bottom surface of holder 7, and the top half of the cavity is cylindrical, diameter d1For
25mm, height h2For 5.5mm, middle part is in a circular table shape, height h3Be 45 ° for 9.5mm, taper, gas outlet 5 and air inlet 4 it is interior
Diameter d2It is 6mm, the vapor permeation area s of filter membrane 6 is 490.625mm2.The cooperation of the cavity body structure of sampler and each parameter, makes
After filtered air-flow enters sampler, be vortexed filter membrane 6 above and reach optimum state, make solid particle more uniformly
It is attached on filter membrane 6.
Claims (2)
1. SF in a kind of electrical equipment6Solid decomposition product sampler, including hollow lower bottom base (1) and upper cover (2), the two spiral shell
Line connects, and sealing ring (3) is equipped at connecting end surface, and the bottom of lower bottom base (1) is equipped with gas outlet (5), and upper cover (2) is equipped with air inlet
Mouth (4), it is characterised in that：Lower bottom base (1) and upper cover (2) material selection polytetrafluoroethylene (PTFE)；Filter membrane (6) and holder (7) are added,
Wherein filter membrane (6) uses aperture for 0.45 μm of organic film, and holder (7) is supported on positioned at the convex of lower bottom base (1) inner wall upper end
On platform, the stomata (8) of a diameter of 2mm is evenly equipped on holder (7), filter membrane (6) is placed on holder (7), on upper cover (2) inner wall
The sealed circle (3) of step boss be pressed on filter membrane (6)；The intracavity diameter that upper cover (2) is docked with lower bottom base (1) is d1,
Height of the bottom surface of upper cover (2) apart from filter membrane (6) is h1, the inner cavity of lower bottom base (1) constitutes funnel-form with the bottom surface of holder (7)
The top half of cavity, the cavity is cylindrical, a diameter of d1, highly be h2, middle part is in a circular table shape, is highly h3, taper be
45 °, the internal diameter of gas outlet (5) and air inlet (4) is d2, and h1=h2, 2h3=d1-d2, the vapor permeation area of filter membrane (6)The inner wall of air inlet (4) is equipped with screw thread, screw pitch 3mm, depth 2mm.
2. SF in electrical equipment according to claim 16Solid decomposition product sampler, it is characterised in that：Diameter d1For
20-30mm, internal diameter d2For 5-7mm, height h1It is highly h for 5-6mm2For 5-6mm, height h3For 8-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610446720.XA CN105954069B (en) | 2016-06-20 | 2016-06-20 | SF in electrical equipment6Solid decomposition product sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610446720.XA CN105954069B (en) | 2016-06-20 | 2016-06-20 | SF in electrical equipment6Solid decomposition product sampler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105954069A CN105954069A (en) | 2016-09-21 |
| CN105954069B true CN105954069B (en) | 2018-07-27 |
Family
ID=56905976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610446720.XA Active CN105954069B (en) | 2016-06-20 | 2016-06-20 | SF in electrical equipment6Solid decomposition product sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105954069B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1014075A1 (en) * | 1998-12-21 | 2000-06-28 | Air Products And Chemicals, Inc. | Apparatus and method for detecting particles in reactive and toxic gases |
| CN102721645A (en) * | 2012-06-27 | 2012-10-10 | 山东电力集团公司电力科学研究院 | Portable SF6 gas resolvent photoacoustic spectrum detecting device and method |
| CN103558066A (en) * | 2013-11-15 | 2014-02-05 | 国家电网公司 | On-line monitoring sampling system for sulfur hexafluoride gas |
| CN205785972U (en) * | 2016-06-20 | 2016-12-07 | 国家电网公司 | SF in electrical equipment6solid decomposition product sampler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11058984B2 (en) * | 2013-12-30 | 2021-07-13 | Korea Atomic Energy Research Institute | Method for treating sulfur hexafluoride using radiation and apparatus for collecting and treating by-products |
-
2016
- 2016-06-20 CN CN201610446720.XA patent/CN105954069B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1014075A1 (en) * | 1998-12-21 | 2000-06-28 | Air Products And Chemicals, Inc. | Apparatus and method for detecting particles in reactive and toxic gases |
| CN102721645A (en) * | 2012-06-27 | 2012-10-10 | 山东电力集团公司电力科学研究院 | Portable SF6 gas resolvent photoacoustic spectrum detecting device and method |
| CN103558066A (en) * | 2013-11-15 | 2014-02-05 | 国家电网公司 | On-line monitoring sampling system for sulfur hexafluoride gas |
| CN205785972U (en) * | 2016-06-20 | 2016-12-07 | 国家电网公司 | SF in electrical equipment6solid decomposition product sampler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105954069A (en) | 2016-09-21 |
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