CN204988642U - Gaseous handheld accurate quantitative leakage detector of SF6 - Google Patents
Gaseous handheld accurate quantitative leakage detector of SF6 Download PDFInfo
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- CN204988642U CN204988642U CN201520662203.7U CN201520662203U CN204988642U CN 204988642 U CN204988642 U CN 204988642U CN 201520662203 U CN201520662203 U CN 201520662203U CN 204988642 U CN204988642 U CN 204988642U
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- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 230000003321 amplification Effects 0.000 claims description 17
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 2
- 239000000284 extract Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract 4
- 238000000605 extraction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000700 radioactive tracer Substances 0.000 abstract 1
- 238000007726 management method Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000004148 unit process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a gaseous handheld accurate quantitative leakage detector of SF6, including air pump drive circuit, the sensor of central processing unit MCU, air pump, connection air pump, be used for for the sensor provide drive power sensor drive circuit, connect the filtering and amplifying circuit of sensor and be used for carrying out the LCD display screen that shows, air pump drive circuit, sensor drive circuit and filtering and amplifying circuit connection central processing unit MCU to monitoring gaseous testing result, air pump drive circuit provides power for being used for extracting the gaseous air pump of check point SF6, and the sensor is used for turning into the signal of telecommunication with the tracer gas of air pump extraction and feeds back to filtering and amplifying circuit, and filtering and amplifying circuit is used for carrying out filter amplifier with the signal of telecommunication of sensor feedback and feeds back central processing unit MCU and carry out analysis processes, and this ration leakage detector can carry out quantitative determination to the gas of check point, and detect the precision height, convenient operation is swift, the degree of safety is high.
Description
Technical field
The utility model belongs to SF6 gas leak detection technology field, especially relates to the hand-held precise quantitative leak locator of a kind of SF6 gas.
Background technology
In order to ensure that each electrical equipment has good insulating property and safety in current electric system, add SF6 gas in the electrical apparatus as insulating gas mostly, this insulating gas can cause security incident when excessive concentration, need to carry out security monitoring to electrical equipment, the mode of qualitative detection that what common watch-dog adopted is, there is the shortcoming that accuracy of detection is not high, error is larger in this detection mode; Also have the detector quantitatively detected, but this detector exists, and price is held high, the problem of instrument heaviness.
Utility model content
For solving the deficiencies in the prior art problem, the utility model provides a kind of SF6 gas hand-held precise quantitative leak locator, and this quantitative leak detector quantitatively can detect the gas of check point, and accuracy of detection is high, convenient to operation, degree of safety is high.
The hand-held precise quantitative leak locator of a kind of SF6 gas, comprise central processor MCU, air pump, connection air pump air pump driving circuit, sensor, for providing the sensor drive driving circuit of driving force, the filter amplification circuit of connecting sensor and the LCD display for showing the testing result of gas-monitoring for sensor, air pump driving circuit, sensor drive driving circuit are connected central processor MCU with filter amplification circuit; Air pump driving circuit provides power for the air pump for extracting check point SF6 gas, the detection gas that sensor is used for air pump extracts is converted into electric signal and feeds back to filter amplification circuit, and filter amplification circuit is used for the electric signal of sensor feedback to carry out filter and amplification and feeds back to central processor MCU and carry out analyzing and processing.
Preferably, this SF6 gas hand-held precise quantitative leak locator also comprises the state indication unit detecting gas real-time status for the manually operated operation push-button of staff and display.
Preferably, the hand-held precise quantitative leak locator of this SF6 gas also comprises the power management module for providing stable operating voltage, power management module comprises power supply unit, electric power management circuit, power protecting circuit and charging circuit, power supply unit is used for providing operating voltage to each modular unit, electric power management circuit is connected with central processor MCU and is used for carrying out management control to power supply unit, power protecting circuit and electric power management circuit communication connection and for carrying out safeguard protection to power supply, charging circuit connects Power Management Unit and charges to supplying cell for external power source.
Preferably, described power protecting circuit comprises battery temperature control protection circuit and battery short circuit protection circuit.
The hand-held precise quantitative leak locator of a kind of SF6 gas in the utility model is by arranging central processor MCU, air pump, air pump driving circuit, sensor, sensor drive driving circuit and filter amplification circuit, the gas of acquisition testing point, carry out sampling to the SF6 gas in gas to be converted into electric signal and to feed back to central processing unit process, after central processing unit analyzing and processing by result feedback to LCD display, the detection of this quantitative leak detector is accurate, error is little and cost is low; Operation push-button and state indication unit are convenient to the state that user operates in time to leak locator, real time inspection detects gas; This leak locator is also provided with and is exclusively used in this special detection environment power management module.
Accompanying drawing explanation
Fig. 1 is the principle of work block diagram of the hand-held precise quantitative leak locator of a kind of SF6 of the utility model gas.
Embodiment
Below in conjunction with accompanying drawing, the application's scheme is further described:
As shown in Figure 1, the hand-held precise quantitative leak locator of a kind of SF6 gas in the present embodiment, comprise central processor MCU 11, air pump 12, connect air pump 12 air pump driving circuit 13, sensor 14, for providing the sensor drive driving circuit 15 of driving force, the filter amplification circuit 16 of connecting sensor 14 and the LCD display 19 for showing the testing result of gas-monitoring for sensor 14, air pump driving circuit 13, sensor drive driving circuit 15, filter amplification circuit 16 are connected central processor MCU 11 with LCD display 19; Air pump driving circuit 13 provides power for the air pump 12 for extracting check point SF6 gas, sensor 14 is converted into electric signal for the detection gas extracted by air pump 12 and feeds back to filter amplification circuit 16, filter amplification circuit 16 is carried out filter and amplification for the electric signal fed back by sensor 14 and is fed back to central processor MCU 11 and carry out analyzing and processing, then result is presented in LCD display 19.
Further, detect the state of gas for the ease of testing staff's operation and observation, this SF6 gas hand-held precise quantitative leak locator also comprises the state indication unit 18 detecting gas real-time status for the manually operated operation push-button 17 of staff and display.
Further, the hand-held precise quantitative leak locator of this SF6 gas also comprises the power management module 20 for providing stable operating voltage, power management module comprises power supply unit 21, electric power management circuit 22, power protecting circuit 24 and charging circuit 23, power supply unit 21 provides operating voltage for giving each modular unit, electric power management circuit 22 is connected with central processor MCU 11 and is used for carrying out management control to power supply unit 21, power protecting circuit 24 and electric power management circuit 22 communicate to connect and for carrying out safeguard protection to power supply, charging circuit 23 connects Power Management Unit 22 and charges to supplying cell for external power source.
Further; in order to ensure that this leak locator normally can work in the hyperbaric environment also having SF6 gas; described power protecting circuit comprises battery temperature control protection circuit and battery short circuit protection circuit, and the temperature of regulating cell that can be true also prevents battery short circuit from causing security incident.
The hand-held precise quantitative leak locator of a kind of SF6 gas in the present embodiment is by arranging central processor MCU, air pump, air pump driving circuit, sensor, sensor drive driving circuit and filter amplification circuit, the gas of acquisition testing point, carry out sampling to the SF6 gas in gas to be converted into electric signal and to feed back to central processing unit process, after central processing unit analyzing and processing by result feedback to LCD display, the detection of this quantitative leak detector is accurate, error is little and cost is low; Operation push-button and state indication unit are convenient to the state that user operates in time to leak locator, real time inspection detects gas; This leak locator is also provided with and is exclusively used in this special detection environment power management module.
Above-mentioned preferred implementation should be considered as illustrating of the application's scheme implementation mode, allly to duplicate with the application's scheme, technology that is approximate or that make based on this is deduced, replaces, improvement etc., all should be considered as the protection domain of this patent.
Claims (4)
1. the hand-held precise quantitative leak locator of SF6 gas, comprise central processor MCU, air pump, connection air pump air pump driving circuit, sensor, for providing the sensor drive driving circuit of driving force, the filter amplification circuit of connecting sensor and the LCD display for showing the testing result of gas-monitoring for sensor, air pump driving circuit, sensor drive driving circuit are connected central processor MCU with filter amplification circuit; Air pump driving circuit provides power for the air pump for extracting check point SF6 gas, the detection gas that sensor is used for air pump extracts is converted into electric signal and feeds back to filter amplification circuit, and filter amplification circuit is used for the electric signal of sensor feedback to carry out filter and amplification and feeds back to central processor MCU and carry out analyzing and processing.
2. the hand-held precise quantitative leak locator of a kind of SF6 gas according to claim 1, is characterized in that: also comprise the state indication unit detecting gas real-time status for the manually operated operation push-button of staff and display.
3. the hand-held precise quantitative leak locator of a kind of SF6 gas according to claim 2, it is characterized in that: also comprise the power management module for providing stable operating voltage, power management module comprises power supply unit, electric power management circuit, power protecting circuit and charging circuit, power supply unit is used for providing operating voltage to each modular unit, electric power management circuit is connected with central processor MCU and is used for carrying out management control to power supply unit, power protecting circuit and electric power management circuit communication connection and for carrying out safeguard protection to power supply, charging circuit connects Power Management Unit and charges to supplying cell for external power source.
4. the hand-held precise quantitative leak locator of a kind of SF6 gas according to claim 3, is characterized in that: described power protecting circuit comprises battery temperature control protection circuit and battery short circuit protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662203.7U CN204988642U (en) | 2015-08-28 | 2015-08-28 | Gaseous handheld accurate quantitative leakage detector of SF6 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662203.7U CN204988642U (en) | 2015-08-28 | 2015-08-28 | Gaseous handheld accurate quantitative leakage detector of SF6 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204988642U true CN204988642U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520662203.7U Expired - Fee Related CN204988642U (en) | 2015-08-28 | 2015-08-28 | Gaseous handheld accurate quantitative leakage detector of SF6 |
Country Status (1)
| Country | Link |
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| CN (1) | CN204988642U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769977A (en) * | 2016-12-30 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of hand-held high-precision gas quantitative leak detector |
| CN107290109A (en) * | 2017-08-01 | 2017-10-24 | 上海科石科技发展有限公司 | Fluorine type gas quantitative leak method and quantitative leak detector based on ionization principle |
| CN113432803A (en) * | 2021-07-06 | 2021-09-24 | 厦门加华电力科技有限公司 | Qualitative and quantitative integrated leak detector |
-
2015
- 2015-08-28 CN CN201520662203.7U patent/CN204988642U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769977A (en) * | 2016-12-30 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of hand-held high-precision gas quantitative leak detector |
| CN107290109A (en) * | 2017-08-01 | 2017-10-24 | 上海科石科技发展有限公司 | Fluorine type gas quantitative leak method and quantitative leak detector based on ionization principle |
| CN113432803A (en) * | 2021-07-06 | 2021-09-24 | 厦门加华电力科技有限公司 | Qualitative and quantitative integrated leak detector |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |