CN108731880A - SF in a kind of high-voltage isulation equipment6Gas detection method and system - Google Patents
SF in a kind of high-voltage isulation equipment6Gas detection method and system Download PDFInfo
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- CN108731880A CN108731880A CN201810416830.0A CN201810416830A CN108731880A CN 108731880 A CN108731880 A CN 108731880A CN 201810416830 A CN201810416830 A CN 201810416830A CN 108731880 A CN108731880 A CN 108731880A
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- detection case
- gas
- test paper
- equipment
- voltage isulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
Abstract
The present invention relates to electrical equipment malfunction gas detection technology fields, more specifically, it relates to SF in a kind of high-voltage isulation equipment6Gas detection method and system；Its drip irrigation device includes S1：Aqueous solution is added in the first detection case, while pH test paper being fixedly mounted in the first detection case, pH test paper soaks in aqueous solution；S2：First detection case is communicated at the sealed connection mouth of high-voltage isulation equipment, and in sealed connection between pipeline and high-voltage isulation equipment；S3：Camera is installed in the first detection case, is taken pictures to pH test paper, and photo is transferred to display terminal.S4：PH test paper in photo is subjected to color contrast with standard color comparison card.Gas flows into the first detection case, SF6Gas and its decomposition product are partially dissolved in aqueous solution, and the acid-base value of aqueous solution is made to change, and pH test paper are compared with standard color comparison card, to judge SF6Whether gas leaks.
Description
Technical field
The present invention relates to electrical equipment malfunction gas detection technology fields, more specifically, it relates to a kind of high-voltage isulation
SF in equipment6Gas detection method and system.
Background technology
Sulfur hexafluoride (SF6) it is used as the exhausted of high-voltage switch gear, big variable quantity and pressure device, high-tension cable and gas in electrical industry
Edge material.These equipment during the work time, the SF in equipment6Gas can decompose under high-temperature electric arc effect, decompose
Including sulfur-containing compound and other compounds etc., such as SF4(sulfur tetrafluoride), S2F2(sulfur fluoride), SOF2Gas such as (fluorination thionyl)
Body, so quantitatively detecting SF6Gas and its decomposition product can be used for diagnosing the failure and defect of electrical equipment.
Such as the Chinese patent of Publication No. CN105865556A discloses SF in a kind of GIS device6Quantity of gas leakage
Detection method, the method are that air flow measuring apparatus is mounted on close to flange or is had at seal nipple, and can be incited somebody to action
Leakage flow velocity is transmitted back to industrial personal computer and carries out remote monitoring；By measuring the SF in GIS pipelines6Gas flow rate, then pass through industrial personal computer
Special-purpose software is converted into SF according to equipment internal diameter, environment temperature, leak time6Quantity of gas leakage.
The detection method can be to the SF in GIS6Quantity of gas leakage is monitored in real time, and to letting out since putting equipment in service
Leakage total amount is calculated, and the system energy and alarm simultaneously prompt operations staff to handle, and gas leakage is avoided to cause equipment
It stops transport, ensures the safe and reliable operation of equipment, while being also beneficial to carry out environmentally friendly supervision, control the discharge of greenhouse gases.
But the equipment that the detection method needs in detection process is more, as gas flow rate detector, environment temperature meter,
SF6Gas gauge and data processor and the equipment such as industrial personal computer that gas flow conversion is carried out according to flow velocity, testing cost
It is higher, and then need to work out one kind and can detect SF in high-voltage isulation equipment6The easy detection method whether gas leaks,
And then reduce SF6The testing cost of gas leakage.
Invention content
In view of the deficienciess of the prior art, the first object of the present invention is to provide SF in a kind of high-voltage isulation equipment6
Gas detection method, this method have and can carry out SF to high-voltage isulation equipment6Gas leakage be detected, and testing cost compared with
Low advantage.
To achieve the above object, the present invention provides following technical solutions：SF in a kind of high-voltage isulation equipment6Gas detection
Method includes the following steps:
S1：Aqueous solution is added in the first detection case, while pH test paper being fixedly mounted in the first detection case, pH test paper soaks
In aqueous solution；
S2：First detection case is communicated to by pipeline at the sealed connection mouth of high-voltage isulation equipment, and pipeline and high-voltage isulation
In sealed connection setting between equipment；
S3：Camera is installed in the first detection case, is timed and is taken pictures by the pH test paper in the first detection case of camera pair,
And photo is transferred to display terminal；
S4：PH test paper in photo is subjected to color contrast with standard color comparison card, judges SF in high-voltage isulation equipment6Whether gas
Leakage.
Using above-mentioned technical proposal, the SF in high-voltage isulation equipment6Gases did escape, leaked gas are exhausted from high pressure
It is flowed into the first detection case at the sealed connection mouth of edge equipment, SF6Gas and its decomposition product such as SF4、S2F2、SOF2Equal gases
It is partially dissolved in aqueous solution so that the acid-base value of aqueous solution changes, and then pH test paper colors can be made to change, camera shooting
Head can be timed shooting to the pH test paper in the first detection case, facilitate staff by collected photo and standard colorimetric
Card carries out color contrast, to judge the SF in high-voltage isulation equipment6Whether gas leaks.
The second object of the present invention is to provide SF in a kind of high-voltage isulation equipment6Gas detecting system, which can
SF is carried out to high-voltage isulation equipment6Gas leakage is detected to handle.
To achieve the above object, the present invention provides following technical solutions：SF6 gas detections in a kind of high-voltage isulation equipment
System, including it is communicated in the first detection case of high-voltage isulation equipment being tightly connected at mouth, the gas outlet of first detection case
It is sequentially communicated several respiratory boxes that alkaline absorption solution is housed.
Using above-mentioned technical proposal, the SF of leakage6Gas and its decomposition product are flowed to from the first detection case in respiratory box,
Alkaline absorption solution can be to SF6The gas that gas and its decomposition generate carries out initial absorption processing, net convenient for the gas in later stage
Change processing work.
The present invention is further arranged, the second detection of connection in the gas outlet for the last one respiratory box that gas flows through
Case, second detection case are equipped with observation panel；Aqueous solution is added in second detection case, and fixed in second detection case
PH test paper is installed, the pH test paper soaks in aqueous solution.
Using above-mentioned technical proposal, residual gas flows into the second detection case, and is partially soluble in aqueous solution, makes the acid of aqueous solution
Basicity changes, and then pH test paper colors is made to change, and the pH test paper colors in the second detection case are observed by observation panel
Variation, and pH test paper and standard color comparison card are subjected to color contrast, and then judge alkaline absorption solution to SF6Gas and its decomposition
Product assimilation effect.
The present invention is further arranged, first detection case and the transparent setting of the second detection case.
Using above-mentioned technical proposal, transparent detection case facilitates staff to observe the inner case of detection case.
The present invention is further arranged, be equipped in second detection case for the pH test paper in second detection case into
The camera of row timed shooting.
Using above-mentioned technical proposal, the pH test paper timed shooting that camera can be in the second detection case, staff will adopt
The photo collected carries out color contrast with standard color comparison card, and then judges that alkaline absorption solution generates SF6 gases and its decomposition
Gas carry out assimilation effect, improve the intelligence of device.
The present invention is further arranged, and the gas outlet of second detection case is communicated with exhaust collection case.
Using above-mentioned technical proposal, exhaust collection case is for collecting residual exhaust, convenient for staff's later stage to remaining tail
Gas is handled, and residual exhaust is avoided to be directly discharged to the external world, is caused damages to external environment.
The present invention is further arranged, and alkaline absorption solution is potassium hydroxide solution, and the potassium hydroxide solution of equivalent is right respectively
It should be added in several described respiratory boxes.
Using above-mentioned technical proposal, SF6Gas and SF6Gas decomposition product chemical property is relatively stable, with other alkalinity
Needed when solution such as sodium hydroxide, calcium hydroxide etc. reacts it is outer increase temperature, a series of reaction condition such as catalyst, hydrogen-oxygen
Change potassium solution to SF6Gas and SF6The portion of product assimilation effect that gas decomposes is preferable, and reaction condition is simpler.
In conclusion the present invention mainly has the advantages that：
1, as the SF in high-voltage isulation equipment6Gases did escape, sealed connection mouth of the leaked gas from high-voltage isulation equipment
Place flows into the first detection case, SF6Gas and its decomposition product such as SF4、S2F2、SOF2Equal gases are partially dissolved in aqueous solution,
So that the acid-base value of aqueous solution changes, and then can make pH test paper colors change, camera can be detected to first
PH test paper in case is timed shooting, facilitates staff that collected photo and standard color comparison card are carried out color contrast,
To judge the SF in high-voltage isulation equipment6Whether gas leaks；
2, the SF leaked6Gas and its decomposition product are flowed to from the first detection case in respiratory box, and alkaline absorption solution can be to SF6
The gas that gas and its decomposition generate carries out initial absorption processing, works convenient for the purified treatment in later stage.
Description of the drawings
Fig. 1 is the attachment structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the phantom of the first detection case of the embodiment of the present invention and the second detection case；
Fig. 3 is the assembly relation schematic diagram of pH test paper and mounting plate in the embodiment of the present invention.
Reference numeral：1, high-voltage isulation equipment；2, detection case；21, the first detection case；22, the second detection case；3, it absorbs
Case；4, observation panel；5, exhaust collection case；6, camera；7, shaft；8, turntable；9, mounting plate；10, pH test paper；11, damp-proof layer.
Specific implementation mode
It elaborates below in conjunction with the accompanying drawings to technical scheme of the present invention.
SF in a kind of high-voltage isulation equipment6Gas detection method and system, referring to Fig.1, including detection case 2, detection case 2 have
Two, respectively the first detection case 21 and the second detection case 22, the first detection case 21 and the second detection case 22 are added with etc. respectively
The aqueous solution of amount.First detection case 21 passes through pipeline（It is not marked in figure）It is connected at the sealed connection mouth of high-voltage isulation equipment 1, and
Pipeline is integrally formed with high-voltage isulation equipment 1 to be arranged so that and it is in be tightly connected setting between pipeline and high-voltage isulation equipment 1, when
SF occurs for high-voltage isulation equipment 16When gases did escape, SF6Gas and SF6The decomposition product of gas enters the first detection
Case 212.
Electric arc reaction can occur in practical work process for high-voltage isulation equipment 1, what SF6 gases decomposed under arcing
Primary product has SF4, S2F2, SF2, SOF2, SO2F2, SOF4Deng.
Specifically, SF under arcing6The relevant nature of the decomposition product of gas is as follows:
1) SF4 (sulfur tetrafluoride)
SF4 is colourless gas under room temperature, there is similar SO2Sharp aroma, can be generated smoke in air with moisture, generate
SOF2And HF.SF4Gas can use lye or activated alumina (A12O3) absorb.SF4Gas has disoperation to lung, influences to breathe
System, toxicity are suitable with phosgene.
2)S2F2(sulfur fluoride)
It is colourless gas under room temperature, it is toxic, there is sharp aroma, meets moisture energy complete hydrolysis and form S, SO2And HF.S2F2To breathing
System has the destruction of similar phosgene.
3)SF2(bifluoride sulphur)
The chemical property of SF2 is extremely unstable, and performance is more active after being heated, and facile hydrolysis is at S, SO2And HF.SF2 gases can use alkali
Liquid or activated alumina absorb.
4)SOF2(fluorination thionyl)
SOF2 is colourless gas, there is rotten-egg odour, stable chemical performance.It delays with reaction of moisture promotees, and can be rapidly activity
Aluminium oxide or activated carbon adsorption.SOF2For hypertoxic gas, serious pulmonary edema can be caused, makes animal death by suffocation.
5)SO2F2(bifluoride sulfonyl)
SO2F2For no color or smell gas, chemical property is extremely stablized, will not be with water and metal reaction when being heated to 150 °C.
SO2F2It is not easy to be absorbed by activated alumina.SO2F2It is a kind of toxic gas that can lead to spasm.
6)SOF4(tetrafluoro thionyl)
SOF4For colourless gas, there is pungent smell, can be absorbed by lye, SO can be generated by being reacted with water2F2。SOF4It is harmful gas
Body has disoperation to lung.
With reference to Fig. 2 and Fig. 3, the inner cavity of detection case 2 is rotatably connected to shaft 7, and the both ends difference of shaft 7 in the horizontal direction
Rotation is carried on two opposite inner walls of detection case 2.Turntable 8 in the form of annular discs is installed in shaft 7, turntable 8 is with shaft 7
Centered on axis rotate；Meanwhile there are six the mounting plates 9 of rectangle tabular for the outer peripheral surface welding of turntable 8, and six are installed
Circumferentially uniform array is distributed plate 9.One side surface of mounting plate 9 is fitted with pH test paper 10, and in the present embodiment, pH test paper 10 selects
0.1 accurate pH test paper 10 is accurate to precision.During turntable 8 rotates, it is in the pH test paper 10 of 8 lowest position of turntable
Always it soaks in the aqueous solution in detection case 2, and then makes pH test paper 10 to SF6Gas and its product decomposed are dissolved in water
Ingredient carries out the detection of pH value.
In addition, pH test paper 10 is coated with damp-proof layer 11, damp-proof layer 11 plays moisture-proof role, reduces turntable 8
On pH test paper 10 the case where making moist.
With reference to Fig. 2 and Fig. 3, the upper surface of the second detection case 22 is provided with observation window, and staff can pass through observation window
Situation in case is observed.First detection case 21 and the transparent setting of the second detection case 22, transparent detection case 2 into one
Step facilitates staff and observes the situation in case.In addition, the side of the first detection case 21 and the second detection case 22
Camera 6 is installed on inner wall, corresponding camera 6 is respectively to the pH in the first detection case 21 and the second detection case 22
Test paper 10 is timed shooting, in addition, camera 6 is electrically connected with display terminal（It is not marked in figure）So that the photograph that camera 6 is shot
Piece can be transferred to display terminal in time by signal transmission.
Camera 6 can be to 10 timed shooting of pH test paper in the first detection case 21 and the second detection case 22, staff
By analyzing collected photo, to judge the SF in high-voltage isulation equipment 16Gas and SF6Gas, which decomposes, to be generated
Gas whether leak, while detecting alkaline absorption solution to SF6The assimilation effect of gas and its partially decomposed product, just
In processing of the later stage to residual gas.
Meanwhile first is equipped with the motor rotated for drive shaft 7 in detection case 21（It is not marked in figure）, in detection case 2
Controller is installed（It is not marked in figure）, controller is electrically connected with motor, controller can timing controlled electric motor starting, to drive
Shaft 7 rotates, and then turntable 8 rotates.
Fig. 1 and Fig. 2 are reviewed, gas outlet, the first inspection are offered in the first side of the detection case 21 far from high-voltage isulation equipment 1
The gas outlet of measuring tank 21 is sequentially communicated two respiratory boxes 3 that alkaline absorption solution is housed, and the last one respiratory box 3 and second detects
Case 22 is connected, the SF of leakage6Gas and its decomposition product are flowed to from the first detection case 21 in respiratory box 3, alkaline absorption solution
It can be to SF6The portion gas that gas and its decomposition generate carries out initial absorption processing, is convenient for the purification of later stage residual gas
Processing work.
In the present embodiment, alkaline absorption solution is preferably potassium hydroxide solution, due to SF6Gas and SF6 gases point
It is relatively stable to solve product chemistry property, reacting with other such as sodium hydroxides, calcium hydroxide alkaline solution, needs are outer to be increased
The a series of reaction condition such as temperature, catalyst；And potassium hydroxide solution is to SF6Gas and SF6The portion of product that gas decomposes is inhaled
Fruit of producing effects is preferable, and reaction condition is simpler.Specific detecting step is as follows：
Step 1：Gas, which is tightly connected from high-voltage isulation equipment 1 from mouth to leak, flows into the first detection case 21, in the first detection case 21
Turntable 8 periodically rotate under the action of motor and controller, pH test paper 10 is contacted with aqueous solution；Meanwhile camera 6 is right
PH test paper 10 in first detection case 21 carries out captured in real-time, and the pH test paper 10 taken and standard color comparison card are carried out color pair
Than, and then judge SF6Whether gas leaks；
Step 2：SF6After gases did escape, SF6Gas and its decomposition product are to be dissolved in the part of water to enter equipped with hydrogen
Initial absorption processing is carried out in potassium oxide solution；
Step 3：SF6Gas and its decomposition product do not continue towards the second detection case by the gas that potassium hydroxide solution absorbs
22, the pH test paper 10 in the second detection case 22 is contacted with aqueous solution, meanwhile, camera 6 is to the pH test paper in the second detection case 22
10 carry out captured in real-time, and when 10 color of pH test paper that camera 6 is shot changes, pH test paper 10 and standard color comparison card are carried out
Comparison, and then judge effect of the potassium hydroxide solution to SF6 gases and its decomposition product initial absorption.
Step 4：The SF not reacted with potassium hydroxide solution6Gas and its decomposition product enter exhaust collection case 5,
And then the processing in later stage is carried out, it prevents gas to be directly discharged to the external world, causes damages to external environment.
Above example is only explanation of the invention, is not limitation of the present invention, those skilled in the art
The modification that not creative contribution can be made to the present embodiment as needed after reading this specification, but as long as in this hair
It is all protected by Patent Law in bright right.
Claims (7)
1. SF in a kind of high-voltage isulation equipment6Gas detection method, it is characterised in that：Include the following steps:
S1：Aqueous solution is added in the first detection case (21), while pH test paper has been fixedly mounted in the first detection case (21)
(10), pH test paper (10) soaks in aqueous solution；
S2：First detection case (21) is communicated to by pipeline at the sealed connection mouth of high-voltage isulation equipment (1), and pipeline and height
In sealed connection setting between pressure insulator arrangement (1)；
S3：The installation camera (6) in the first detection case (21) tries the pH in the first detection case (21) by camera (6)
Paper (10), which is timed, takes pictures, and photo is transferred to display terminal；
S4：PH test paper (10) in photo is subjected to color contrast with standard color comparison card, judges SF in high-voltage isulation equipment (1)6Gas
Whether body is revealed.
2. SF in a kind of high-voltage isulation equipment6Gas detecting system, it is characterised in that：Including being communicated in high-voltage isulation equipment (1)
The gas outlet of the first detection case (21) being tightly connected at mouth, first detection case (21) is sequentially communicated several equipped with alkalinity
The respiratory box (3) of absorbing liquid.
3. SF in a kind of high-voltage isulation equipment according to claim 26Gas detecting system, it is characterised in that：In gas stream
The gas outlet of the last one respiratory box (3) of warp is connected to the second detection case (22), and second detection case (22), which is equipped with, to be seen
Cha Kou (4)；Aqueous solution is added in second detection case (22), and pH test paper is installed in second detection case (22)
(10), the pH test paper (10) is soaked in aqueous solution.
4. SF in a kind of high-voltage isulation equipment according to claim 36Gas detecting system, it is characterised in that：Described first
Detection case (21) and the transparent setting of the second detection case (22).
5. SF in a kind of high-voltage isulation equipment according to claim 36Gas detecting system, it is characterised in that：Described second
The camera for being timed shooting to the pH test paper (10) in second detection case (22) is equipped in detection case (22)
(6)。
6. SF in a kind of high-voltage isulation equipment according to claim 56Gas detecting system, it is characterised in that：Described second
The gas outlet of detection case (22) is communicated with exhaust collection case (5).
7. SF in a kind of high-voltage isulation equipment according to claim 26Gas detecting system, it is characterised in that：Alkalinity absorbs
Liquid is potassium hydroxide solution, will be in the potassium hydroxide solution of equivalent respectively corresponding several described respiratory boxes (3) of addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810416830.0A CN108731880B (en) | 2018-05-03 | 2018-05-03 | SF in high-voltage insulation equipment6Gas detection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810416830.0A CN108731880B (en) | 2018-05-03 | 2018-05-03 | SF in high-voltage insulation equipment6Gas detection method and system |
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| Publication Number | Publication Date |
|---|---|
| CN108731880A true CN108731880A (en) | 2018-11-02 |
| CN108731880B CN108731880B (en) | 2021-01-19 |
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ID=63936973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810416830.0A Active CN108731880B (en) | 2018-05-03 | 2018-05-03 | SF in high-voltage insulation equipment6Gas detection method and system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926716A (en) * | 2019-12-28 | 2020-03-27 | 南通科源电力设备有限公司 | SF6 gas high-voltage electrical apparatus safety monitoring device |
| CN110927340A (en) * | 2019-12-06 | 2020-03-27 | 西安锐驰电器有限公司 | Method for detecting concentration of gas decomposition product in high-voltage power equipment |
| CN112131993A (en) * | 2020-09-16 | 2020-12-25 | 因士(上海)科技有限公司 | Gas leakage visual detection system and method based on image recognition technology |
| CN112834693A (en) * | 2019-11-22 | 2021-05-25 | 北方工业大学 | Multifunctional gas component dynamic change and dynamic detection device |
| CN112834686A (en) * | 2019-11-22 | 2021-05-25 | 北方工业大学 | Multifunctional gas component circulation change and circulation detection device |
| CN113097916A (en) * | 2021-04-30 | 2021-07-09 | 炬光电力集团有限公司 | Environment-friendly gas insulation ring main unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112834693A (en) * | 2019-11-22 | 2021-05-25 | 北方工业大学 | Multifunctional gas component dynamic change and dynamic detection device |
| CN112834686A (en) * | 2019-11-22 | 2021-05-25 | 北方工业大学 | Multifunctional gas component circulation change and circulation detection device |
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| CN113097916A (en) * | 2021-04-30 | 2021-07-09 | 炬光电力集团有限公司 | Environment-friendly gas insulation ring main unit |
| CN113097916B (en) * | 2021-04-30 | 2022-11-15 | 炬光电力集团有限公司 | Environment-friendly gas insulation ring main unit |
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|---|---|
| CN108731880B (en) | 2021-01-19 |
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