CN204881775U - Ultrasonic wave conservator oil level detector for power transformer - Google Patents
Ultrasonic wave conservator oil level detector for power transformer Download PDFInfo
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- CN204881775U CN204881775U CN201520372405.8U CN201520372405U CN204881775U CN 204881775 U CN204881775 U CN 204881775U CN 201520372405 U CN201520372405 U CN 201520372405U CN 204881775 U CN204881775 U CN 204881775U
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- microprocessor
- oil level
- signal
- oil
- level detector
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Abstract
The utility model belongs to the technical field of transformer detection device technique and specifically relates to an ultrasonic wave conservator oil level detector for power transformer. It includes microprocessor, ultrasonic sensor, drive circuit, processing circuit, wireless communication device and power module, drive circuit and processing circuit connect respectively between ultrasonic sensor and microprocessor, and wireless communication device links to each other with microprocessor with the form of TTL serial ports. The utility model discloses following beneficial effect has: 1, the realization is measured the non -contact of transformer oil pillow oil level, 2, can realize the fixed point and survey, also can carry out the difference and survey in succession, 3, can fix a position fixed mounting and carry out remote control, also can carry out the interim detection of movable type, 4, compare with infrared, laser or other radioactivity detection modes, its influence that need not to protect, do not receive light and environmental medium, the cost is comparatively cheap in addition.
Description
Technical field
The utility model relates to transformer pick-up unit technical field, especially a kind of power transformer ultrasound wave oil pillow oil level detector.
Background technology
Conservator (also known as fuel reserve tank or oil conservater) is the important composition parts of transformer, and when the volume of transformer oil to expand along with the change of oil temperature or reduces, conservator plays oil storage and repairing effect; Meanwhile, conservator can also reduce the contact area of transformer and air, and the grease after the moisture absorbed from air, dust and oxidation can both be deposited in the depositor bottom conservator, greatly can slow down the degradation speed of transformer oil.
At present, detection for oil pillow oil level generally adopts level vial to indicate or metal float-ball type oil level gage two kinds of modes, the former principle is U-shaped liquid level gauge pressure balance principle, the latter's principle is that floating ball rod causes magnetic force change and the change of final initiation indicator, because both all belong to Purely mechanical structure, directly must contact and can detect with transformer oil, so, when capsules break in generation conservator, pressure anomaly or ball float break, connecting rod bending, during the faults such as indicator is stuck, mostly need to carry out the maintenance of disintegration formula to conservator, also need after maintenance to carry out sealing experiment to conservator, vacuumize, filling wet goods a series of cycle is long, restrict by weather, cost height waits operation.Therefore, proposing improvement project to existing oil pillow oil level sniffer, is technical matters urgently to be resolved hurrily in current industry.
Utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide that a kind of structure is simple, easy to use, with low cost, safe and reliable, oil-level measurement data power transformer ultrasound wave oil pillow oil level detector accurately.
To achieve these goals, the utility model adopts following technical scheme:
A kind of power transformer ultrasound wave oil pillow oil level detector, it comprise microprocessor, for detect oil pillow oil level height ultrasonic sensor, for driving the driving circuit of ultrasonic sensor action, for carrying out shaping amplifying signal treatment circuit to the oil level signal of ultrasonic sensor collection, for the signal after microprocessor processes being delivered to the radio communication device of terminal server and being provided the supply module of working power by microprocessor to ultrasonic sensor, driving circuit, signal processing circuit and radio communication device;
Described driving circuit and signal processing circuit are connected between ultrasonic sensor and microprocessor, and described radio communication device is connected with microprocessor with the form of TTL serial ports.
Preferably, described ultrasonic sensor comprises the ultrasonic probe for detecting oil pillow oil level height and the temperature sensor for gathering oil temperature, described ultrasonic probe is connected with signal processing circuit with driving circuit respectively, and described temperature sensor is connected with microprocessor by temperature collection circuit.
Preferably, described radio communication device comprises GPS module for the positioning signal of transformer being delivered to microprocessor, be used for the signal after by microprocessor processes is delivered to the GPRS module of terminal server and is used for the ANT antenna of the Signal transmissions realizing GPS module and GPRS module, is also provided with one for connecting the SIM card circuit of SIM card in described GPRS module.
Preferably, described microprocessor is also connected with one to carry out fault alarm output accident warning device for the signal exported according to microprocessor.
Preferably, described supply module comprises the DC/DC change-over circuit that power supply and the fixing direct current for being exported by power supply are converted to variable DC voltage, and described power supply is connected with microprocessor by DC/DC change-over circuit.
Preferably, described supply module also comprises one and is connected to voltage detection unit between power supply and microprocessor.
Preferably, described microprocessor is also connected to display screen for showing the signal after microprocessor processes, for the control button to microprocessor input control signal, for carrying out the clock circuit of time setting to microprocessor and the data for externally being exported by the signal data after microprocessor processes store and output module.
Preferably, described microprocessor is also connected with several status indicator lamps.
Owing to have employed such scheme, the utility model realizes following beneficial effect: 1, realize the non-contact measurement to installation for transformer oil level; 2, fixed point detection can be realized, also can carry out difference continuous probe; 3, can be fixed on the positioning and install and carry out remote pilot, also can carry out movable type detection temporarily; 4, compared with infrared, laser or other radioactivity prospecting modes, it is without the need to carrying out protecting, not by the impact of light and surrounding medium, and cost is comparatively cheap.
Accompanying drawing explanation
Fig. 1 is the system principle diagram of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, the power transformer ultrasound wave oil pillow oil level detector of the present embodiment, it comprises microprocessor 1, for detecting the ultrasonic sensor 2 of oil pillow oil level height, for driving the driving circuit 3 of ultrasonic sensor 2 action, oil level signal for gathering ultrasonic sensor 2 carries out shaping amplifying signal treatment circuit 4, terminal server (computing machine is delivered to for the signal after being processed by microprocessor 1, the terminal devices such as mobile phone) radio communication device 5 and by microprocessor 1 to ultrasonic sensor 2, driving circuit 3, signal processing circuit 4 and radio communication device 5 provide the supply module 6 of working power, wherein, driving circuit 3 and signal processing circuit 4 are connected between ultrasonic sensor 2 and microprocessor 1, and radio communication device 5 is then connected with microprocessor 1 with the form of TTL serial ports.
So, on the medium interphase that specific acoustic impedance is different, the characteristic of reflection is produced based on ultrasound wave, by ultrasonic sensor 2 send the ultrasound wave after modulation the interphase of liquid (transformer oil) and gas (or vacuum environment) or solid (capsule as conservator) occurs reflect the echo that produces received by ultrasonic sensor 2 again, microprocessor 1 then can according to ultrasonic sensor 2 from the oil level data or the oil mass signal that are issued to time that reception work experiences and draw conservator; What the oil mass signal after utilizing radio communication device 5 then microprocessor 1 can be processed was real-time is delivered to terminal server, to monitor in real time the conservator oil mass of transformer.Based on this, the detector of the present embodiment has the following advantages: 1, realize the non-contact measurement to installation for transformer oil level; 2, fixed point detection can be realized, also can carry out difference continuous probe; 3, can be fixed on the positioning and install and carry out remote pilot, also can carry out movable type detection temporarily; 4, compared with infrared, laser or other radioactivity prospecting modes, it is without the need to carrying out protecting, not by the impact of light and surrounding medium, and cost is comparatively cheap.
Further, the detecting function of horn of plenty detector, ensure the security of the use of conservator, the ultrasonic sensor 2 of the present embodiment comprises the ultrasonic probe 21 for detecting oil pillow oil level height and the temperature sensor 22 for gathering oil temperature; Wherein, ultrasonic probe 21 is connected with signal processing circuit 4 with driving circuit 3 respectively, and temperature sensor 22 is then connected with microprocessor 1 by temperature collection circuit 7; Thus after temperature collection circuit 7 can be utilized to be converted to by the temperature signal that temperature sensor 22 gathers signal that microprocessor 1 can accept, realize synchronism output and the monitoring of oil temperature signal and oil mass signal or oil level signal.
For ensureing the reliability of Signal transmissions and enriching the approach of Signal transmissions, the radio communication device 5 of the present embodiment comprises GPS module 51 for the positioning signal of transformer being delivered to microprocessor 1, be used for the signal after being processed by microprocessor 1 is delivered to the GPRS module 52 of terminal server and is used for the ANT antenna 53 of the Signal transmissions realizing GPS module 51 and GPRS module 52, meanwhile, in GPRS module 52, one is also provided with for connecting the SIM card circuit 54 of SIM card; So, by grafting SIM card in detector, so that oil level signal and oil temperature signal etc. are uploaded in real time.
Further, the microprocessor 1 of the present embodiment is also connected with one to carry out fault alarm output accident warning device 8 for the signal exported according to microprocessor 1, the accident warning device 8 of the present embodiment can adopt as audible-visual annunciator etc. as the case may be, with break down when conservator or detector itself or oil level and oil temperature occur abnormal time carry out scene or remote alarms.
For ensureing the Electrical Safety of each ingredient in whole detector, the supply module 6 of the present embodiment comprises the DC/DC change-over circuit 62 that power supply 61 (can adopt the direct supply of 12V accumulator, solar cell or direct input 9-36V as the case may be) and the fixing direct current for being exported by power supply 61 are converted to variable DC voltage, with the output utilizing DC/DC change-over circuit 62 to realize multiple different DC voltage, ensure the normal work of relevant components part, power supply 61 is connected with microprocessor 1 by DC/DC change-over circuit 62.For improving the electrical safety of whole detector further, the supply module 6 of the present embodiment also comprises one and is connected to voltage detection unit 63 between power supply 61 and microprocessor 1.
Simultaneously, based on said structure, for ensureing that whole detector has mobile, portable function, can by real-time the detecting different transformer oil levels of maintainer, the microprocessor 1 of the present embodiment be also connected to show for the signal after processing microprocessor 1 display screen 90, for the control button 91 to microprocessor 1 input control signal, for carrying out the clock circuit 92 of time setting to microprocessor 1 and storing and output module 93 for the data that the signal data after being processed by microprocessor 1 externally exports.With this, when carrying detector and carrying out in-site measurement, show, to enable maintainer judge intuitively by display screen 90 pairs of correlation detection signals; And to be stored by data and output module 93 can be real-time detection data is stored in the memory storage such as USB flash disk or SD card, be convenient to carry out analysis and the process in later stage to data or form data archival storehouse.
In addition, the microprocessor 1 of the present embodiment is also connected with several for showing the status indicator lamp 94 of detector work and malfunction.
Each circuit of the present embodiment or components and parts can adopt existing any circuit or components and parts with similar functions according to actual conditions, on the basis of the system architecture and function that realize whole detector, reduce the cost of whole detector and ensure security, the accuracy of detector.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (8)
1. a power transformer ultrasound wave oil pillow oil level detector, is characterized in that: it comprise microprocessor, for detect oil pillow oil level height ultrasonic sensor, for driving the driving circuit of ultrasonic sensor action, for carrying out shaping amplifying signal treatment circuit to the oil level signal of ultrasonic sensor collection, for the signal after microprocessor processes being delivered to the radio communication device of terminal server and being provided the supply module of working power by microprocessor to ultrasonic sensor, driving circuit, signal processing circuit and radio communication device;
Described driving circuit and signal processing circuit are connected between ultrasonic sensor and microprocessor, and described radio communication device is connected with microprocessor with the form of TTL serial ports.
2. a kind of power transformer ultrasound wave oil pillow oil level detector as claimed in claim 1, it is characterized in that: described ultrasonic sensor comprises the ultrasonic probe for detecting oil pillow oil level height and the temperature sensor for gathering oil temperature, described ultrasonic probe is connected with signal processing circuit with driving circuit respectively, and described temperature sensor is connected with microprocessor by temperature collection circuit.
3. a kind of power transformer ultrasound wave oil pillow oil level detector as claimed in claim 2, it is characterized in that: described radio communication device comprises GPS module for the positioning signal of transformer being delivered to microprocessor, be used for the signal after by microprocessor processes is delivered to the GPRS module of terminal server and is used for the ANT antenna of the Signal transmissions realizing GPS module and GPRS module, is also provided with one for connecting the SIM card circuit of SIM card in described GPRS module.
4. a kind of power transformer ultrasound wave oil pillow oil level detector as claimed in claim 3, is characterized in that: described microprocessor is also connected with one to carry out fault alarm output accident warning device for the signal exported according to microprocessor.
5. a kind of power transformer ultrasound wave oil pillow oil level detector as claimed in claim 4, it is characterized in that: described supply module comprises the DC/DC change-over circuit that power supply and the fixing direct current for being exported by power supply are converted to variable DC voltage, and described power supply is connected with microprocessor by DC/DC change-over circuit.
6. a kind of power transformer ultrasound wave oil pillow oil level detector as claimed in claim 5, is characterized in that: described supply module also comprises one and is connected to voltage detection unit between power supply and microprocessor.
7. a kind of power transformer ultrasound wave oil pillow oil level detector according to any one of claim 1-6, is characterized in that: described microprocessor is also connected to display screen for showing the signal after microprocessor processes, for the control button to microprocessor input control signal, for carrying out the clock circuit of time setting to microprocessor and the data for externally being exported by the signal data after microprocessor processes store and output module.
8. a kind of power transformer ultrasound wave oil pillow oil level detector as claimed in claim 7, is characterized in that: described microprocessor is also connected with several status indicator lamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520372405.8U CN204881775U (en) | 2015-06-02 | 2015-06-02 | Ultrasonic wave conservator oil level detector for power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520372405.8U CN204881775U (en) | 2015-06-02 | 2015-06-02 | Ultrasonic wave conservator oil level detector for power transformer |
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| Publication Number | Publication Date |
|---|---|
| CN204881775U true CN204881775U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520372405.8U Expired - Fee Related CN204881775U (en) | 2015-06-02 | 2015-06-02 | Ultrasonic wave conservator oil level detector for power transformer |
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| CN (1) | CN204881775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043506A (en) * | 2015-06-02 | 2015-11-11 | 林聪� | Ultrasonic oil conservator oil level detector for power transformer |
| CN106932055A (en) * | 2017-04-24 | 2017-07-07 | 深圳市电应普科技有限公司 | A kind of High Precision Automatic sampling calibration ultrasonic solution level monitoring system |
-
2015
- 2015-06-02 CN CN201520372405.8U patent/CN204881775U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043506A (en) * | 2015-06-02 | 2015-11-11 | 林聪� | Ultrasonic oil conservator oil level detector for power transformer |
| CN106932055A (en) * | 2017-04-24 | 2017-07-07 | 深圳市电应普科技有限公司 | A kind of High Precision Automatic sampling calibration ultrasonic solution level monitoring system |
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| 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: 20151216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |