CN208520746U - A kind of optical path pool of SF6 low humidity rapid survey - Google Patents
A kind of optical path pool of SF6 low humidity rapid survey Download PDFInfo
- Publication number
- CN208520746U CN208520746U CN201821192017.1U CN201821192017U CN208520746U CN 208520746 U CN208520746 U CN 208520746U CN 201821192017 U CN201821192017 U CN 201821192017U CN 208520746 U CN208520746 U CN 208520746U
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- China
- Prior art keywords
- laser
- gas chamber
- optical path
- low humidity
- rapid survey
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- 230000003287 optical effect Effects 0.000 title claims abstract description 18
- 239000013307 optical fiber Substances 0.000 claims abstract description 9
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- 238000012545 processing Methods 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 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 claims description 3
- 239000000523 sample Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 229910018503 SF6 Inorganic materials 0.000 description 22
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 22
- 229960000909 sulfur hexafluoride Drugs 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
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- 231100001010 corrosive Toxicity 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
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- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a kind of optical path pools of SF6 low humidity rapid survey, it include laser electrical box, closed gas chamber, plane mirror and concave mirror, inlet end and outlet side are provided on the gas chamber, the plenum interior is provided with opposite plane mirror and concave mirror, one end is arranged outside gas chamber in the laser electrical box, the laser electrical box is provided with laser light incident end and laser emitting end, and the laser light incident end and laser emitting end are connect by optical fiber with gas chamber.The beneficial effects of the utility model are can the information such as the concentration of moisture in quick probe gas SF6.
Description
Technical field
The utility model relates to field of gas detection, the optical path pool of specifically a kind of SF6 low humidity rapid survey.
Background technique
Sulfur hexafluoride (SF6) gas is widely used in sulfur hexafluoride as excellent dielectric and arc-extinguishing medium
In the various electrical equipments such as gas insulation breaker, GIS, transformer, mutual inductor, power cable.The defeated change of country's super-pressure at present
Breaker employed in electrical engineering is almost SF6 switchgear entirely, and still, the performance of this kind of equipment is insulated from medium SF6
The relationship between quality of gas is very big, is especially influenced with gas water content maximum.Therefore, the gas water content in SF6 electrical equipment is
Supervise an important indicator of equipment safety operation.Water content is excessively high in SF6 gas, can not only reduce the insulation energy of equipment
Power, and chemical attack can be generated to equipment.Simultaneously moisture content presence for equipment, through electric arc decompose and generate nuisance
Matter will increase, and therefore, trace water in SF6 gas must be strictly monitored and controlled.
Since water content is an important indicator for influencing equipment safety operation in SF6 gas, therefore, each state is all right
SF6 gas water content situation is especially paid attention to, and has formulated corresponding micro- water index, as judging that gaseous mass and equipment are normal
The foundation of in-service surveillance
But in traditional method, in medium moisture content measurement, either measuring principle is still from actual operation shape
In condition, all there is a problem of analyzing it interference of result and accuracy is poor, to cause measurement error.
Utility model content
Point against the above deficiency, the purpose of this utility model are just to provide a kind of optical path pool of SF6 low humidity rapid survey, can
The information such as the concentration of moisture in quick probe gas SF6.
The purpose of this utility model is that technical solution in this way is realized, a kind of light path of SF6 low humidity rapid survey
Pond, it includes laser electrical box, closed gas chamber, plane mirror and concave mirror, is provided with inlet end and outlet on the gas chamber
End, the plenum interior are provided with opposite plane mirror and concave mirror, and one end is arranged outside gas chamber in the laser electrical box, described
Laser electrical box is provided with laser light incident end and laser emitting end, and the laser light incident end and laser emitting end pass through optical fiber and gas
Room connection.
Further, the gas chamber is additionally provided with drier, and the upper surface of the gas chamber is consolidated by the first cover board and the second cover board
Composition is connect, first cover board is provided with installing port, and the drier is located at the installing port, and second cover board is provided with
For the opening of drier sliding, second cover board is located at opening and is additionally provided with several through-holes, the drier bottom end
Affixed sliding panel, the sliding panel are slidably matched with the opening, are provided on the sliding panel for being used cooperatively with through-hole
Dried hole.
Further, it is provided with the first sealing ring at the outer rim of the installing port, is provided with second at the outer rim of the through-hole
Sealing ring, the pedestal of the drier are provided with third sealing ring.
Further, the laser electrical box includes detector and laser, and the laser light incident end is provided with for gas
The laser of laser is injected in room, and the laser emitting end is provided with the detector for receiving processing laser.
Further, the light source of the laser is tunable semiconductor laser light source.
Further, the detector is also configured with signal amplifier, and the detector is electrically connected with the signal amplifier.
Further, the gas chamber is flat, and the plane mirror and concave mirror are located at the both ends of plenum interior, the plane
Mirror is located at one end of laser electrical box.
By adopting the above-described technical solution, the utility model has the advantage that by being provided with air inlet on gas chamber
End and outlet side, the plenum interior are provided with opposite plane mirror and concave mirror, and the laser electrical box is arranged outside gas chamber
One end, the laser electrical box are provided with laser light incident end and laser emitting end, and the laser light incident end and laser emitting end are logical
Optical fiber is crossed to connect with gas chamber.It is incident in gas chamber by laser, is passing through multiple reflections, according to semiconductor laser with tunable
Narrow linewidth and wavelength change with Injection Current characteristic realization the single Absorption Line of molecule is measured；With can be applied to
All kinds of strong corrosives measure environment；It can measure, not polluted by background gas, dust and optical window under high temperature, hyperbaric environment
Interference.
Other advantages, target and feature of the utility model will be explained in the following description to a certain extent
It states, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or
Person can be instructed from the practice of the utility model.The target of the utility model and other advantages can be said by following
Bright book and claims are achieved and obtained.
Detailed description of the invention
The Detailed description of the invention of the utility model is as follows.
Fig. 1 is the structural schematic diagram of the optical path pool of SF6 low humidity rapid survey.
Fig. 2 is the overlooking structure diagram of Fig. 1.
Fig. 3 is the left view structural representation of Fig. 1.
Fig. 4 is the partial enlargement structural representation at Figure 1A.
Fig. 5 is the schematic perspective view of the optical path pool of SF6 low humidity rapid survey.
Fig. 6 is the schematic cross-sectional view of the optical path pool of SF6 low humidity rapid survey.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figures 1 to 6, a kind of optical path pool of SF6 low humidity rapid survey includes laser electrical box 1, closed gas
Room 9, plane mirror 13 and concave mirror 7 are provided with inlet end 5 and outlet side 6 on the gas chamber, and the plenum interior is provided with relatively
Plane mirror 13 and concave mirror 7, the laser electrical box 1 is arranged in the outer one end of gas chamber 9, and the laser electrical box 1 is provided with sharp
Light incident side 12 and laser emitting end 11, the laser light incident end 12 and laser emitting end 11 are connect by optical fiber with gas chamber 9.Institute
State gas chamber 9 be it is flat, the plane mirror 13 and concave mirror 7 are located at the both ends inside gas chamber 9, and the plane mirror 13 is located at laser
One end of electrical box 1.The gas chamber 9 of the utility model is that the first cover board 401 and the second cover board 402 are added on opening box body, first
Cover board 401, the second cover board 402 and box body are aluminum alloy material.Laser acquisition optical routing laser light source, detector are constituted.Swash
Radiant uses tunable semiconductor laser light source.Laser light source is incident on closed air chamber by optical fiber, using 7 He of concave mirror
The multiple reflections of plane mirror 13, are reflected on the optical fiber of exit end, and detector will become electric signal to light signal, then signal
It is collected into signal and display system, the operation such as is handled, analyzed, stored and shown.Reflected light path is 7 peace of concave mirror
Face mirror 13 is constituted, the probing light for issuing laser light source by multiple reflections, thus increase detection light beam and under test gas it
Between the interaction distance, can be improved detection accuracy, and be connected on detector by the optical fiber of exit end
The gas chamber 9 is additionally provided with drier 3, and the upper surface of the gas chamber is consolidated by the first cover board 401 and the second cover board 402
Composition is connect, first cover board 401 is provided with installing port 2, and the drier 3 is located at the installing port 2, second cover board
402 are provided with the opening 10 slided for drier 3, and second cover board, which is located at opening 10, is additionally provided with several through-holes
14, the affixed sliding panel 15 in 3 bottom end of drier, the sliding panel 15 is slidably matched with the opening 10, the sliding panel 15
On be provided with dried hole 16 for being used cooperatively with through-hole 14.The utility model dry sealed gas chamber of drier, Er Qiegan
Dry device and sealed gas chamber, which can choose, opens and closes two states, and when off working state, dried hole 16 is connected to through-hole 14, does
Dry device 3 and sealed gas chamber 9 are opened, and drier 3 absorbs excessive moisture in gas chamber 9, and guarantees the clean state of gas chamber 9.To
Exclude extraneous and plenum interior moisture interference；When analysis state, dried hole 16 is staggered with through-hole 14, drier 3 and closed gas
Room 9 is closed state, and the moisture of such under test gas will not be impacted, is directly measured.
It is provided with the first sealing ring 801 at the outer rim of the installing port, is provided with the second sealing at the outer rim of the through-hole
Circle 802, the pedestal of the drier 3 is provided with third sealing ring 803.Play the role of sealed air chamber, guarantees that drier passes through
When slide handover working condition, guarantee that gas chamber is closed.
The laser electrical box 1 includes detector and laser, and the laser light incident end is provided with for injecting to gas chamber
The laser of laser, the laser emitting end are provided with the detector for receiving processing laser.The detector is also configured with
Signal amplifier, the detector are electrically connected with the signal amplifier.
Working principle and its application: being projected on concave mirror 7 by the light that laser issues by laser light incident end 12,
By the multiple reflections of plane mirror 13, and the sufficient contact action of gas with the SF6 for entering dry gas chamber 9, finally pass through
The optical fiber of laser emitting end face, light are reflected on detector, and detector becomes electric signal to light signal for what is received again,
It is handled again by signal amplifier, and after A/D conversion, carries out second harmonic processing, obtain in gas SF6 to be detected
The information such as the concentration of moisture, and these detection datas are shown on a display screen.The utility model mainly utilizes tunable half
The characteristic realization that the narrow linewidth and wavelength of conductor laser change with Injection Current measures the single Absorption Line of molecule, has
It can be applied to all kinds of strong corrosive measurement environment；It can be measured under high temperature, hyperbaric environment, not by background gas, dust and light
Learn form pollution interference.The data acquisition functions of good sensitivity, wider detection range and high speed can be achieved, and have simultaneously
Standby the features such as cross sensitivity degree is small, reliability and stability are high, long service life, it is suitble to the fields SF6 such as scientific research and electric system
The measurement of switchgear moisture has huge economic benefit and social benefit to realize the safe operation of power equipment.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, should all without departing from the objective and range of the technical program
Cover in the scope of the claims of the utility model.
Claims (7)
1. a kind of optical path pool of SF6 low humidity rapid survey, it is characterised in that: include laser electrical box, closed gas chamber, plane
Mirror and concave mirror, are provided with inlet end and outlet side on the gas chamber, and the plenum interior is provided with opposite plane mirror and recessed
Face mirror, the laser electrical box are arranged outside gas chamber one end, the laser electrical box and are provided with laser light incident end and laser emitting
End, the laser light incident end and laser emitting end are connect by optical fiber with gas chamber.
2. the optical path pool of SF6 low humidity rapid survey according to claim 1, it is characterised in that: the gas chamber is additionally provided with
Drier, the upper surface of the gas chamber is by the first cover board and the second cover board is affixed constitutes, and first cover board is provided with installing port,
The drier is located at the installing port, and second cover board is provided with the opening for drier sliding, second lid
Plate is located at opening and is additionally provided with several through-holes, the affixed sliding panel in drier bottom end, the sliding panel and the opening
It is slidably matched, the dried hole for being used cooperatively with through-hole is provided on the sliding panel.
3. the optical path pool of SF6 low humidity rapid survey according to claim 2, it is characterised in that: the outer rim of the installing port
Place is provided with the first sealing ring, and the second sealing ring is provided at the outer rim of the through-hole, and the pedestal of the drier is provided with
Three sealing rings.
4. the optical path pool of SF6 low humidity rapid survey according to claim 1, it is characterised in that: the laser electrical box packet
Detector and laser are included, the laser light incident end is provided with the laser for injecting laser to gas chamber, the laser emitting
End is provided with the detector for receiving processing laser.
5. the optical path pool of SF6 low humidity rapid survey according to claim 4, it is characterised in that: the light source of the laser
For tunable semiconductor laser light source.
6. the optical path pool of SF6 low humidity rapid survey according to claim 4, it is characterised in that: the detector also configures
There is signal amplifier, the detector is electrically connected with the signal amplifier.
7. the optical path pool of SF6 low humidity rapid survey according to claim 1, it is characterised in that: the gas chamber be it is flat,
The plane mirror and concave mirror are located at the both ends of plenum interior, and the plane mirror is located at one end of laser electrical box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192017.1U CN208520746U (en) | 2018-07-26 | 2018-07-26 | A kind of optical path pool of SF6 low humidity rapid survey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192017.1U CN208520746U (en) | 2018-07-26 | 2018-07-26 | A kind of optical path pool of SF6 low humidity rapid survey |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520746U true CN208520746U (en) | 2019-02-19 |
Family
ID=65333852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821192017.1U Expired - Fee Related CN208520746U (en) | 2018-07-26 | 2018-07-26 | A kind of optical path pool of SF6 low humidity rapid survey |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520746U (en) |
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2018
- 2018-07-26 CN CN201821192017.1U patent/CN208520746U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| 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: 20190219 Termination date: 20190726 |