CN110441005A - A kind of SF6 density monitor gas leakage device for fast detecting and method - Google Patents
A kind of SF6 density monitor gas leakage device for fast detecting and method Download PDFInfo
- Publication number
- CN110441005A CN110441005A CN201910690964.6A CN201910690964A CN110441005A CN 110441005 A CN110441005 A CN 110441005A CN 201910690964 A CN201910690964 A CN 201910690964A CN 110441005 A CN110441005 A CN 110441005A
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- China
- Prior art keywords
- hermetic bag
- density monitor
- gas
- control module
- baroceptor
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Classifications
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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
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
-
- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Abstract
The present invention relates to a kind of SF6 density monitor gas leakage device for fast detecting and methods, the device includes hermetic bag and the detection device that is provided thereon, hermetic bag is equipped with sealable opening, control module is equipped in detection device, vacuum pump, baroceptor and halogen gas sensor, it is offered in detection device towards the bleeding point on the inside of hermetic bag, first detection mouth, second detection mouth and towards the exhaust outlet on the outside of hermetic bag, vacuum pump into, exhaust pipe respectively with bleeding point, exhaust outlet connection, baroceptor, halogen gas sensor is respectively arranged on the first detection mouth, in second detection mouth, to detect the vacuum degree and SF6 gas leakage situation inside hermetic bag, the input terminal of control module respectively with baroceptor, the connection of halogen gas sensor, the output end of control module is connect with the vacuum pump, it is true to control Empty pump work.The device and method is conducive to the SF6 gas leakage situation for efficiently and accurately detecting SF6 density monitor.
Description
Technical field
The present invention relates to electrical equipment detection technique fields, and in particular to a kind of SF6 density monitor gas leakage quickly detects
Device and method.
Background technique
Substation plays the role of " energy source main artery " in socio-economic development, and importance is self-evident.SF6
As a kind of colourless, odorless, nontoxic, non-ignitable gas arc-extinguishing medium, it is widely applied in the electrical apparatus, instead of biography
The electrical equipment of system oil medium arc extinguishing, is widely applied in power grid.But SF6 electrical equipment is normal during day-to-day operation
SF6 gas leakage defect occurs, leakage point mainly appears on flange face or SF6 density monitor.Common leak hunting method now
It is to probe into using SF6 halogen gas detector or directly use foam after a certain period of time by being sealed after wrapping to leakage point
Detection method carries out the qualitative leak detection of SF6 gas.
Existing test method accuracy is lower, and sealing wrapping process is cumbersome.Sealing wrapping imprecision, quantity of gas leakage
Less, SF6 halogen gas detector precision not enough etc. can not all discover whether to be leaked.It is limited by current detection means,
The probability that SF6 gas detection fails to report, reports by mistake is higher.
Summary of the invention
The purpose of the present invention is to provide a kind of SF6 density monitor gas leakage device for fast detecting and method, the device and
Method is conducive to the SF6 gas leakage situation for efficiently and accurately detecting SF6 density monitor.
To achieve the above object, the technical scheme is that a kind of SF6 density monitor gas leakage device for fast detecting,
Detection device including hermetic bag and in hermetic bag, the hermetic bag is equipped with can for pick and place SF6 density monitor
Sealed opening, the detection device is interior to be equipped with control module, vacuum pump, baroceptor and halogen gas sensor, the inspection
Survey the bleeding point offered on device towards on the inside of hermetic bag, the first detection mouth, the second detection mouth and towards on the outside of hermetic bag
Exhaust outlet, the air inlet and exhaust piper of the vacuum pump is connected to the bleeding point, exhaust outlet respectively, the baroceptor, halogen
Gas sensor is respectively arranged on first detection mouth, in the second detection mouth, to detect the vacuum degree and SF6 gas inside hermetic bag
Body leakage situation, the input terminal of the control module are electrically connected with the baroceptor, halogen gas sensor respectively, institute
The output end and the vacuum pump for stating control module are electrically connected, to control vacuum pump work.
Further, the sealable opening includes the pressure-sealing zipper structure with sealing lock, the sealing lock
The slide fastener mouth of inside and pressure-sealing zipper is equipped with sealing material, and the pressure-sealing zipper is opened to be put into SF6 density monitor, and is allowed
The air pipe interface of SF6 density monitor is stretched out from sealing lock, is latched by closing seam zipper and sealing, is sealed salable open
Mouthful.
Further, wireless communication module, the control module and wireless communication module electricity are equipped in the detection device
Property connection, to upload detection information.
The present invention also provides a kind of SF6 density monitor gas leakage rapid detection methods, comprising the following steps:
S1, secondary line or aviation plug that SF6 density monitor connects are pulled up, SF6 density monitor is then put into sealing
In bag, the sealable opening of hermetic bag is sealed；
Vacuum pump in S2, control module starting detection device, extracts hermetic bag internal gas from bleeding point and arranges from exhaust outlet
Out, while by baroceptor the vacuum degree in hermetic bag is detected, when vacuum degree reaches given threshold, control module control
Vacuum pump stops working；
S3, control module judge the leakage feelings of SF6 gas according to the detection data of baroceptor and halogen gas sensor
Condition.
Further, it in step S2, if the vacuum degree in hermetic bag is unable to satisfy always the requirement of given threshold, returns
Step S1 is returned, the sealable opening of hermetic bag is resealed.
Further, in step S3, inspection that the control module is uploaded according to baroceptor and halogen gas sensor
Measured data is calculated, and judges whether that micro SF6 gas, which has occurred, to be leaked and calculate leakage rate.
Further, in step S3, the control module judges the leakage situation of SF6 gas as follows: working as halogen
When gas sensor detects SF6 gas, judge that SF6 gas leaks, and sealing in certain time is detected by baroceptor
Air pressure change amount in bag calculates the leakage rate and leakage rate of SF6 gas accordingly；When baroceptor detects that air pressure becomes
Change, and when SF6 gas is not detected in halogen gas sensor, judge hermetic bag gas leakage, at this time return step S1, reseals close
The sealable opening of envelope.
Compared to the prior art, the invention has the following advantages: to provide a kind of SF6 density monitor gas leakage quick
Detection device and method are overcome existing by the halogen gas and internal pressure progress double check to detected object
The problems such as test method is cumbersome, accuracy is low, when improving the reliability and accuracy of detection, while shortening detection
Between, there is very strong practicability and wide application prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the partial structural diagram of sealable opening in the embodiment of the present invention.
In figure, 1, hermetic bag, 2, detection device, 3, sealable opening, 31, sealing lock, 311, sealing lock ontology,
312, hermetic bag fixed ring, 313, sealing gel, 32, pressure-sealing zipper, 4, control module, 5, vacuum pump, 6, baroceptor, 7,
Halogen gas sensor, 8, bleeding point, the 9, first detection mouth, the 10, second detection mouth, 11, exhaust outlet, 12, wireless communication module,
13, SF6 density monitor.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is described in further details.
The present invention provides a kind of SF6 density monitor gas leakage device for fast detecting, as shown in Figure 1, including 1 He of hermetic bag
Detection device 2 in hermetic bag 1, hermetic bag 1 are equipped with the sealable opening 3 for picking and placing SF6 density monitor 13, inspection
Surveying in device 2 and being equipped with control module 4(the present embodiment is STM32F730 chip), vacuum pump 5, baroceptor 6 and halogen gas
Sensor 7, offer in detection device 2 bleeding point 8 towards 1 inside of hermetic bag, the first detection mouth 9, the second detection mouth 10 with
And the exhaust outlet 11 towards 1 outside of hermetic bag, the air inlet and exhaust piper of vacuum pump 5 are connected to bleeding point 8, exhaust outlet 11 respectively, air pressure
Sensor 6, halogen gas sensor 7 are respectively arranged on the first detection mouth 9, in the second detection mouth 10, to detect inside hermetic bag 1
Vacuum degree and SF6 gas leakage situation, the input terminal of control module 4 are electric with baroceptor 6, halogen gas sensor 7 respectively
Property connection, the output end of control module 4 and vacuum pump 5 are electrically connected, to control the work of vacuum pump 5.
Wireless communication module 12 is additionally provided in detection device 2, control module 4 and wireless communication module 12 are electrically connected, with
To mobile terminal or host computer uploading detection information.In the present embodiment, wireless communication module 12 is bluetooth module JDY-10M.
As shown in Fig. 2, in the present embodiment, sealable opening 3 includes 32 structure of pressure-sealing zipper with sealing lock 31,
The inside of sealing lock 31 and the slide fastener mouth of pressure-sealing zipper 32 are equipped with sealing material, and pressure-sealing zipper 32 is opened close to be put into SF6
Relay is spent, and the air pipe interface of SF6 density monitor is allowed to stretch out from sealing lock 31, passes through closing seam zipper 32 and sealing
Lock 31 seals sealable opening, realizes sealing.Specifically, sealing lock 31 is solid including sealing lock ontology 311, hermetic bag
Determine ring 312 and sealing gel (sealing material) 313.In sealing lock ontology 311 with hermetic bag fixed ring 312 by crimping mode
Hermetic bag is installed, sealing gel is equipped on the inside of hermetic bag fixed ring 312, it can be close with the air pipe interface of SF6 density monitor
Contact, sealing effect is effectively ensured.
The present invention also provides the corresponding SF6 density monitor gas leakage rapid detection methods of above-mentioned apparatus, including following step
It is rapid:
S1, secondary line or aviation plug that SF6 density monitor connects are pulled up, SF6 density monitor is independent, then will
SF6 density monitor is put into hermetic bag, seals the sealable opening of hermetic bag, sealing effect is effectively ensured.
Vacuum pump in S2, control module starting detection device, extracts hermetic bag internal gas from bleeding point and from exhaust
Mouth discharge, while passing through the vacuum degree in baroceptor detection hermetic bag, when vacuum degree reaches given threshold, control module
Control vacuum pump stops working.If the vacuum degree in hermetic bag is unable to satisfy always the requirement of given threshold, illustrate hermetic bag
Seal operation is bad, then return step S1, reseals the sealable opening of hermetic bag.
S3, control module judge inside hermetic bag according to the detection data of baroceptor and halogen gas sensor
The leakage situation of vacuum degree and SF6 gas.Specifically, the control module judges the leakage situation of SF6 gas as follows:
When halogen gas sensor detects SF6 gas, judge that SF6 gas leaks, and certain time is detected by baroceptor
Air pressure change amount in interior hermetic bag calculates the leakage rate and leakage rate of SF6 gas accordingly；When baroceptor detects gas
Buckling, and when SF6 gas is not detected in halogen gas sensor, judge hermetic bag gas leakage, at this time return step S1, it is again close
It is sealed the sealable opening of envelope.It is complementary with halogen gas sensor by baroceptor, improve the accuracy of detection.
S4, after detecting the leakage of SF6 gas, control module is uploaded to mobile terminal or upper by wireless communication module
Machine.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made
When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.
Claims (6)
1. a kind of SF6 density monitor gas leakage device for fast detecting, which is characterized in that including hermetic bag and in hermetic bag
Detection device, the hermetic bag are equipped with the sealable opening for picking and placing SF6 density monitor, are equipped in the detection device
Control module, vacuum pump, baroceptor and halogen gas sensor offer in the detection device towards on the inside of hermetic bag
Bleeding point, the first detection mouth, the second detection mouth and towards the exhaust outlet on the outside of hermetic bag, the inlet and outlet of the vacuum pump
Pipe is connected to the bleeding point, exhaust outlet respectively, and the baroceptor, halogen gas sensor are respectively arranged on first inspection
Survey mouth, in the second detection mouth, to detect the vacuum degree and SF6 gas leakage situation inside hermetic bag, the control module it is defeated
Enter end to be electrically connected with the baroceptor, halogen gas sensor respectively, the output end of the control module and described true
Sky pump is electrically connected, to control vacuum pump work.
2. a kind of SF6 density monitor gas leakage device for fast detecting according to claim 1, which is characterized in that it is described can
Sealed opening includes the pressure-sealing zipper structure with sealing lock, and the inside of the sealing lock and the slide fastener mouth of pressure-sealing zipper are equal
Equipped with sealing material, the pressure-sealing zipper is opened to be put into SF6 density monitor, and allows the air pipe interface of SF6 density monitor
It is stretched out from sealing lock, is latched by closing seam zipper and sealing, seal sealable opening.
3. a kind of SF6 density monitor gas leakage device for fast detecting according to claim 1, which is characterized in that the inspection
It surveys and is equipped with wireless communication module in device, the control module and wireless communication module are electrically connected, to upload detection information.
4. a kind of SF6 density monitor gas leakage rapid detection method, which comprises the following steps:
S1, secondary line or aviation plug that SF6 density monitor connects are pulled up, SF6 density monitor is then put into sealing
In bag, the sealable opening of hermetic bag is sealed；
Vacuum pump in S2, control module starting detection device, extracts hermetic bag internal gas from bleeding point and arranges from exhaust outlet
Out, while by baroceptor the vacuum degree in hermetic bag is detected, when vacuum degree reaches given threshold, control module control
Vacuum pump stops working；
S3, control module judge the leakage feelings of SF6 gas according to the detection data of baroceptor and halogen gas sensor
Condition.
5. a kind of SF6 density monitor gas leakage rapid detection method according to claim 4, which is characterized in that step S2
In, if the vacuum degree in hermetic bag is unable to satisfy always the requirement of given threshold, return step S1 reseals hermetic bag
Sealable opening.
6. a kind of SF6 density monitor gas leakage rapid detection method according to claim 4, which is characterized in that step S3
In, the control module judges the leakage situation of SF6 gas as follows: when halogen gas sensor detects SF6 gas
When, judge that SF6 gas leaks, and the air pressure change amount in certain time in hermetic bag is detected by baroceptor, counts accordingly
Calculate the leakage rate and leakage rate of SF6 gas；When baroceptor detects air pressure change, and halogen gas sensor does not detect
When to SF6 gas, judges hermetic bag gas leakage, at this time return step S1, reseal the sealable opening of hermetic bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690964.6A CN110441005B (en) | 2019-07-29 | 2019-07-29 | SF6 density relay air leakage rapid detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690964.6A CN110441005B (en) | 2019-07-29 | 2019-07-29 | SF6 density relay air leakage rapid detection device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110441005A true CN110441005A (en) | 2019-11-12 |
| CN110441005B CN110441005B (en) | 2021-08-31 |
Family
ID=68432103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910690964.6A Active CN110441005B (en) | 2019-07-29 | 2019-07-29 | SF6 density relay air leakage rapid detection device and method |
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