CN202614478U - Portable SF6 gas leakage detection system - Google Patents
Portable SF6 gas leakage detection system Download PDFInfo
- Publication number
- CN202614478U CN202614478U CN 201220202908 CN201220202908U CN202614478U CN 202614478 U CN202614478 U CN 202614478U CN 201220202908 CN201220202908 CN 201220202908 CN 201220202908 U CN201220202908 U CN 201220202908U CN 202614478 U CN202614478 U CN 202614478U
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- infrared sensor
- gas
- detection system
- circuit module
- telemetry circuit
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Abstract
The utility model discloses a portable SF6 gas leakage detection system comprising an infrared sensor integrated with a drift control circuit and a temperature compensation circuit, and a measurement and control circuit module provided with a UART interface and transmitting digital signals with the infrared sensor through a Modbus digital communication protocol. The portable SF6 gas leakage detection system disclosed by the utility model utilizes advanced technology to optimize the detection circuit and the detection technique and utilizes the infrared sensor integrated with the drift control circuit and the temperature compensation circuit and the Modbus digital communication protocol of the advanced UART interface to solve the signal interference problem in the transmission process of the traditional mode of utilizing analog signals, greatly improve the data transmission reliability and stability and better facilitate the application on industrial sites. The portable SF6 gas leakage detection system disclosed by the utility model has high detection sensitivity and stability, good repeatability and the capability of truly realizing the qualitative and quantitative detection of the SF6 gas.
Description
Technical field
The utility model relates to a kind of gas detection equipment, particularly a kind of pocket SF
6The gas leak detection system.
Background technology
Along with the progressively raising of domestic transformer substation voltage grade, present power department SF
6The use amount of primary cut-out is approximately with 15% annual speed increment, at high pressure, UHV (ultra-high voltage) and extra-high voltage field of switches, SF
6Gas almost becomes unique insulation and arc-extinguishing medium, but SF
6High-voltage switch gear is mounted in indoor mostly, and air flow is comparatively slow, in case SF
6Gas is revealed, and causes local anoxic easily, causes the staff because of anoxia asphyxia, and personnel's life security is caused great potential safety hazard.Simultaneously, breaker body is caused damage also to the reduction of the very big degree of arc quenching effect of primary cut-out.Therefore in case find SF
6Gas is revealed, and just must take appropriate measures, and accurately searches out leakage point, and leakage point is repaired, and in time eliminates the potential safety hazard of primary cut-out.
At present, SF
6Traditional Leak Detection mode adopt inversion boosting discharge examination mode, or qualitative approach sensor detects, these detection modes can only play SF
6The effect that gas qualitatively judges, and can't realize quantitative measurment accurately, therefore can not play SF
6Accurately estimating of equipment running status is unfavorable for formulating turnaround plan accurately.
Summary of the invention
In order to solve the problems of the technologies described above, the purpose of the utility model provide a kind of measurement reliable and stable, realize SF
6The pocket SF of the qualitative and detection by quantitative of gas
6The gas leak detection system.
The technical scheme that the utility model adopted is:
A kind of pocket SF
6The gas leak detection system comprises:
Be used for collecting the gas sampling assembly of scene gas;
Be used for the gas that the detected gas sample unit is collected, and the simulating signal that detects is converted into the infrared sensor of digital signal; Integrated drift control circuit and the temperature-compensation circuit that is used to eliminate the detection error in the said infrared sensor;
Be used to obtain, handle the telemetry circuit module of infrared sensor digital signal; Said telemetry circuit module is provided with the UART interface, and this UART interface is connected with data line with infrared sensor, and through Modbus digital communication protocol transmission digital signal;
Be used to receive, show telemetry circuit module observing and controlling result's display unit;
The power supply module that is used for telemetry circuit module for power supply and power supply control.
As the further improvement of the utility model, said telemetry circuit module comprises:
Be used to handle the single-chip microcomputer of infrared sensor digital signal;
Be used for detecting the EEPROM of data at single-chip microcomputer internal reservoir infrared sensor;
The A/D control circuit that is used for power supply module input and management;
Be used to control the I/O mouth control circuit of telemetry circuit module start and stop.
As the further improvement of the utility model, said telemetry circuit module comprises:
Be used at the outside FLASH pin-saving chip that stores some infrared sensors detection data of single-chip microcomputer;
Be used for being uploaded to the storage data of FLASH pin-saving chip the USB communication module of host computer.
As the further improvement of the utility model, said gas sampling assembly comprises the PVC draft tube, and PVC draft tube one end is communicated with on-the-spot, and the other end is connected with the rotation sampling pump, and rotation sampling delivery side of pump is connected with infrared sensor through pipeline.
As the further improvement of the utility model, said power supply module comprises that the chargeable lithium cell group protects and the technical grade power management chip of state-detection discharging and recharging of telemetry circuit module with being used for.
The beneficial effect of the utility model is: the utility model sophistication; Optimize and detect loop and characterization processes; Adopt the infrared sensor of inner integrated drift control circuit and temperature-compensation circuit, use advanced UART interface Modbus digital communication agreement simultaneously, solved traditional approach and adopted the signal interference problem in the analog signal transmission process; Increase reliability of data transmission and stability greatly, more helped the application of industry spot.The utility model detection sensitivity is with stability height, good reproducibility, really realize SF
6Qualitative and the detection by quantitative of gas.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1, a kind of pocket SF
6The gas leak detection system comprises gas sampling assembly 1, infrared sensor 2, telemetry circuit module 3, display unit 4 and power supply module 5.
Gas sampling assembly 1 is used for collection scene gas, comprises PVC draft tube 11, and the PVC draft tube is inserted in the snakelike protection tube of stainless steel; The one of which end is communicated with on-the-spot; Carry out the detected gas sample introduction, the other end connects rotation sampling pump 12, and the outlet of rotation sampling pump 12 is connected with infrared sensor 2 through pipeline; With the mode that gas on-site is inhaled with active efflux, bring in the infrared sensor 2.It is 1L/min that rotation sampling pump 12 pumps in the present embodiment are inhaled flow, guarantees the stability of sample introduction.
Infrared sensor 2 is used for the gas that detected gas sampling apparatus 1 is collected, and the simulating signal that detects is converted into digital signal.In the present embodiment, infrared sensor 2 is a single beam dual wavelength infrared sensor, and sensor exports direct emptying, and the pressure effect through prime rotation sampling pump 12 makes at the uniform velocity flows through sensor of detected gas.Infrared sensor 2 inner integrated drift control circuit 21 and temperature-compensation circuits 22; Be used for eliminating and detect error, not only solved site environment and changed the detection error that to bring, equipment can be detected under round-the-clock state; Also improved accuracy of detection, the real leakage SF that realizes
6Qualitative, the quantitative detection of gas for accurately estimating the field apparatus running status, is carried out SF
6Overhaul of the equipments brings very big facility.Infrared sensor 2 inside also are provided with the aluminium alloy air chamber in addition, have strengthened the structural strength of whole sensor.
Telemetry circuit module 3 is used to obtain, handle infrared sensor 2 digital signals.Telemetry circuit module 3 is provided with UART interface 31; This UART interface 31 is connected with infrared sensor 2 usefulness data lines; And employing Modbus digital communication agreement; Duplex mode obtains the digital signal of transmission sensor, has solved traditional approach and has adopted the signal interference problem in the analog signal transmission process, has strengthened reliability of data transmission and stability greatly.
Telemetry circuit module 3 comprises:
Be used to handle the single-chip microcomputer 32 of the digital signal of infrared sensor 2; Be used for detecting the EEPROM33 (EEPROM) of data at single-chip microcomputer 32 internal reservoir infrared sensors; The A/D control circuit 34 that is used for power supply module 5 input and management; Be used to control the I/O mouth control circuit 35 of telemetry circuit module 3 start and stop.
Telemetry circuit module 3 also comprises: be used at the single-chip microcomputer 32 outside FLASH pin-saving chips 36 that store some infrared sensors detection data; Be used for being uploaded to the storage data of FLASH pin-saving chip 36 the USB communication module 37 of host computer.In this enforcement, the capacity of FLASH pin-saving chip 36 is 128M, 100 data of maximum storage.When needs, the user can directly will detect data upload to host computer through the USB interface in the USB communication module 37, and the application data analysis software carries out the corresponding data analysis, handle, and print.
Telemetry circuit module 3 can also be in testing process be set through corresponding, carry out the circuit alarm setting to equipment, and when detected value during greater than setting value, equipment carries out corresponding sound and light alarm, thereby confirms the particular location that primary equipment is revealed.
Power supply module 5 is used for the power supply and the power supply control of telemetry circuit module 3.Power supply module 5 comprises chargeable lithium cell group 51 and technical grade power management chip 52, and chargeable lithium cell group 51 adopts 7.4V 5200mAh chargeable lithium cell group, but makes the equipment continuous working greater than 5 hours.Technical grade power management chip 52 is used for the discharging and recharging of telemetry circuit module 3 protected and state-detection.
Display unit 4 is used for receiving, shows telemetry circuit module 3 observing and controlling results.In the present embodiment; Display unit 4 is a LCD; With functions such as the automatic result of calculation that detects global function state-detection, dynamic waveform tracing analysis figure, low alarm limit equipment under test amount of leakage and leakage rate such as outrange in data, battery electric quantity state, sensor states, the testing process in real time, self-calibration function state, perpetual calendars; Show intuitively, be convenient to user real time and detect.
The above is merely the preferential embodiment of the utility model, as long as realize that with basic identical means the technical scheme of the utility model purpose all belongs within the protection domain of the utility model.
Claims (5)
1. pocket SF
6The gas leak detection system is characterized in that: comprising:
Be used for collecting the gas sampling assembly (1) of scene gas;
Be used for the gas that the detected gas sample unit is collected, and the simulating signal that detects is converted into the infrared sensor (2) of digital signal; Integrated drift control circuit (21) and the temperature-compensation circuit (22) that is used to eliminate the detection error in the said infrared sensor (2);
Be used to obtain, handle the telemetry circuit module (3) of infrared sensor (2) digital signal; Said telemetry circuit module (3) is provided with UART interface (31), and this UART interface (31) is connected with data line with infrared sensor (2), and through Modbus digital communication protocol transmission digital signal;
Be used for receiving, showing telemetry circuit module (3) observing and controlling result's display unit (4);
The power supply module (5) that is used for telemetry circuit module (3) power supply and power supply control.
2. a kind of pocket SF according to claim 1
6The gas leak detection system is characterized in that: said telemetry circuit module (3) comprising:
Be used to handle the single-chip microcomputer (32) of infrared sensor (2) digital signal;
Be used for detecting the EEPROM (33) of data at single-chip microcomputer (32) internal reservoir infrared sensor;
The A/D control circuit (34) that is used for power supply module (5) input and management;
Be used to control the I/O mouth control circuit (35) of telemetry circuit module (3) start and stop.
3. a kind of pocket SF according to claim 2
6The gas leak detection system is characterized in that: said telemetry circuit module (3) comprising:
Be used at the outside FLASH pin-saving chip (36) that stores some infrared sensors detection data of single-chip microcomputer (32);
Be used for being uploaded to the storage data of FLASH pin-saving chip (36) the USB communication module (37) of host computer.
4. a kind of pocket SF according to claim 1
6The gas leak detection system; It is characterized in that: said gas sampling assembly (1) comprises PVC draft tube (11); PVC draft tube (11) one ends are communicated with on-the-spot, and the other end is connected with rotation sampling pump (12), and the outlet of rotation sampling pump (12) is connected with infrared sensor (2) through pipeline.
5. a kind of pocket SF according to claim 1
6The gas leak detection system is characterized in that: said power supply module (5) comprises chargeable lithium cell group (51) and is used for discharging and recharging of telemetry circuit module (3) protected and the technical grade power management chip (52) of state-detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220202908 CN202614478U (en) | 2012-05-08 | 2012-05-08 | Portable SF6 gas leakage detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220202908 CN202614478U (en) | 2012-05-08 | 2012-05-08 | Portable SF6 gas leakage detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614478U true CN202614478U (en) | 2012-12-19 |
Family
ID=47348167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220202908 Expired - Fee Related CN202614478U (en) | 2012-05-08 | 2012-05-08 | Portable SF6 gas leakage detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321704A (en) * | 2021-12-27 | 2022-04-12 | 国网山东省电力公司潍坊供电公司 | Intelligent SF6Gas leakage detection aerating device |
-
2012
- 2012-05-08 CN CN 201220202908 patent/CN202614478U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321704A (en) * | 2021-12-27 | 2022-04-12 | 国网山东省电力公司潍坊供电公司 | Intelligent SF6Gas leakage detection aerating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XU QUAN Free format text: FORMER OWNER: ZHUHAI YUANMING POWER EQUIPMENT CO., LTD. Effective date: 20140312 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 519080 ZHUHAI, GUANGDONG PROVINCE TO: 519000 ZHUHAI, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140312 Address after: 519000, five, 1 and 3 units, No. 2, production and processing center, 1 Software Road, Zhuhai, Guangdong Patentee after: Xu Quan Address before: 519080, five, 1 and 3 units, No. 2, production and processing center, 1 Software Road, Zhuhai, Guangdong Patentee before: Zhuhai Yuanming Power Equipment Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHUHAI YUANMING POWER EQUIPMENT CO., LTD. Free format text: FORMER OWNER: XU QUAN Effective date: 20140618 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140618 Address after: 519000, five, 1 and 3 units, No. 2, production and processing center, 1 Software Road, Zhuhai, Guangdong Patentee after: Zhuhai Yuanming Power Equipment Co., Ltd. Address before: 519000, five, 1 and 3 units, No. 2, production and processing center, 1 Software Road, Zhuhai, Guangdong Patentee before: Xu Quan |
|
| 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: 20121219 Termination date: 20180508 |