CN202220626U - Monitoring protector for oil level of oil tank, thermal expansion and oil servo-motor - Google Patents
Monitoring protector for oil level of oil tank, thermal expansion and oil servo-motor Download PDFInfo
- Publication number
- CN202220626U CN202220626U CN2011202891515U CN201120289151U CN202220626U CN 202220626 U CN202220626 U CN 202220626U CN 2011202891515 U CN2011202891515 U CN 2011202891515U CN 201120289151 U CN201120289151 U CN 201120289151U CN 202220626 U CN202220626 U CN 202220626U
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Abstract
The utility model relates to a monitoring protector for the oil level of an oil tank, thermal expansion and an oil servo-motor, which is used for measuring the expansion stroke of a bearing cap, the opening stroke of a valve and the like and comprises a signal acquisition circuit (1), a master control unit (2) and an execution circuit (3). The signal acquisition circuit (1), the master control unit (2) and the execution circuit (3) are sequentially serially connected, a stroke sensor (1.1), a pulse variable-voltage circuit (1.2), a linear detecting circuit (1.3), a filtering circuit (1.4), a linear amplifying circuit (1.5) and an A/D (analog/digital) module (1.6) are sequentially serially connected to form the signal acquisition circuit (1), and an output end of the A/D module (1.6) is connected with the master control unit (2). The monitoring protector for the oil level of the oil tank, thermal expansion and the oil servo-motor is simple and visible in operation, and can be used for realizing high-precision online data measurement, storage and analysis.
Description
Technical field
The utility model relates to a kind of monitoring and protecting appearance, is used for the opening travel of MEASUREMENT OF STEAM turbine fuel level in tank, thermal expansion, oil engine stroke, valve etc.
Background technique
At present, in the steam turbine operation process, need to use the monitoring and protecting appearance that it is carried out monitoring and protecting; As fuel level in tank, thermal expansion, oil engine are carried out the monitoring and protecting appearance, conventional monitoring and protecting appearance reliability, long time stability are not high, and level of integration is low; Can't high-precisionly carry out online data measures; Adopt tutorial light to carry out the situation indication in the monitoring and protecting appearance of routine, directly perceived inadequately, and setting operation is very inconvenient.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, a kind of simple and direct-viewing operation is provided and can carries out fuel level in tank, thermal expansion, the oil engine monitoring and protecting appearance that high-precision online data is measured, stored and analyze.
The purpose of the utility model is achieved in that a kind of fuel level in tank, thermal expansion, oil engine monitoring and protecting appearance; Said protection appearance includes signal acquisition circuit, main control unit and executive circuit; Said signal acquisition circuit, main control unit and executive circuit are connected successively; Said signal acquisition circuit is followed in series to form by stroke sensor, pulse transforming circuit, linear detection circuit, eliminator, linear amplifier circuit and A/D module, and the output terminal of said A/D module links to each other with main control unit.
The utility model fuel level in tank, thermal expansion, oil engine monitoring and protecting appearance; Said executive circuit includes display driver circuit, people's machine circuit, photoelectric isolating circuit, the dangerous output circuit of warning, D/A module, current output circuit and communication module; Said main control unit links to each other with people's machine circuit through display driver circuit; Said main control unit links to each other with the dangerous output circuit of reporting to the police through photoelectric isolating circuit; Said main control unit links to each other with current output circuit through the D/A module, and said communication module links to each other with main control unit.
Compared with prior art, the beneficial effect of the utility model is:
The utility model can react online survey data intuitively, exactly, has that intelligent precision is high, visual and workable, alarming value, dangerous values can set, use characteristics such as correct easy arbitrarily.The utility model effectively controlled static or dynamically after zero drift, can be according to the on-the-spot required arbitrarily selected measuring range of user, but and communication module and system communication cartoon news, greatly facilitate user installation debugging and use.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model fuel level in tank, thermal expansion, oil engine monitoring and protecting appearance.
Wherein:
Stroke sensor 1.1, pulse transforming circuit 1.2, linear detection circuit 1.3, eliminator 1.4, linear amplifier circuit 1.5, A/D module 1.6;
Display driver circuit 3.1, people's machine circuit 3.2, photoelectric isolating circuit 3.3, report to the police dangerous output circuit 3.4, D/A module 3.5, current output circuit 3.6, communication module 3.7.
Embodiment
Referring to Fig. 1; A kind of fuel level in tank that the utility model relates to, thermal expansion, oil engine monitoring and protecting appearance; Said protection appearance includes signal acquisition circuit 1, main control unit 2 and executive circuit 3; Said signal acquisition circuit 1, main control unit 2 and executive circuit 3 are connected successively; Said signal acquisition circuit 1 is followed in series to form by stroke sensor 1.1, pulse transforming circuit 1.2, linear detection circuit 1.3, eliminator 1.4, linear amplifier circuit 1.5 and A/D module 1.6, and the output terminal of said A/D module 1.6 links to each other with main control unit 2;
Said executive circuit 3 includes display driver circuit 3.1, people's machine circuit 3.2, photoelectric isolating circuit 3.3, report to the police dangerous output circuit 3.4, D/A module 3.5, current output circuit 3.6 and communication module 3.7; Said main control unit 2 links to each other with people's machine circuit 3.2 through display driver circuit 3.1; Said main control unit 2 links to each other with the dangerous output circuit 3.4 of reporting to the police through photoelectric isolating circuit 3.3; The dangerous output circuit 3.4 of said warning can external system protection device; Said main control unit 2 links to each other with current output circuit 3.6 through D/A module 3.5, and said current output circuit 3.6 external DCS upper-position units are realized the collection of online signal; Said communication module 3.7 links to each other with main control unit 2, realizes being connected with extraneous communication.
During use; Stroke sensor 1.1 links to each other with linear detection circuit 1.3, eliminator 1.4 through pulse transforming circuit 1.2; Through linear amplifier circuit 1.5 the stroke analog data being sent into A/D module 1.6 changes; Through main control unit 2 with run-length data through D/A module 3.5, current output circuit 3.6, report to the police dangerous output circuit 3.4, people's machine circuit 3.2, communication module 3.7, data are sent into DCS upper-position unit, online signal sampler and other system protection device.
Linear detection circuit 1.3 half-wave detections adopt the anti-phase input to amplify, owing to add degree of depth reverse feedback; Gain stability is high, has improved antijamming capability greatly, amplifies back input filter circuit 1.4; The filtering high frequency ac signal converts the voltage model linear with run-length data into through linear amplifier circuit 1.5, and input A/D module 1.6 is carried out the A/D conversion; By the digital signal input main control unit 2 after the conversion of A/D change-over circuit; Main control unit 2 carries out parameter setting with data parameters through the interface of display driver circuit 3.1 input people machine circuits 3.2 through computings, simultaneously these data through D/A module 3.5 with digital simulationization; See the 4-20mA electric current off through current output circuit 3.6, send into the DCS master system and realize remote monitoring.When measured value surpassed dangerous setting value, main control unit 2 sent distress signal through the dangerous output circuit 3.4 of reporting to the police via photoelectric isolating circuit 3.3, and the man-machine interface hazard lamp of people's machine circuit 3.2 is bright simultaneously, and carried out data transmission through communication module 3.7.
Claims (2)
1. a fuel level in tank, thermal expansion, oil engine monitoring and protecting appearance; It is characterized in that: said protection appearance includes signal acquisition circuit (1), main control unit (2) and executive circuit (3); Said signal acquisition circuit (1), main control unit (2) and executive circuit (3) are connected successively; Said signal acquisition circuit (1) is followed in series to form by stroke sensor (1.1), pulse transforming circuit (1.2), linear detection circuit (1.3), eliminator (1.4), linear amplifier circuit (1.5) and A/D module (1.6), and the output terminal of said A/D module (1.6) links to each other with main control unit (2).
2. a kind of according to claim 1 fuel level in tank, thermal expansion, oil engine monitoring and protecting appearance; It is characterized in that: said executive circuit (3) includes display driver circuit (3.1), people's machine circuit (3.2), photoelectric isolating circuit (3.3), the dangerous output circuit (3.4) of reporting to the police, D/A module (3.5), current output circuit (3.6) and communication module (3.7); Said main control unit (2) links to each other with people's machine circuit (3.2) through display driver circuit (3.1); Said main control unit (2) links to each other with the dangerous output circuit (3.4) of reporting to the police through photoelectric isolating circuit (3.3); Said main control unit (2) links to each other with current output circuit (3.6) through D/A module (3.5), and said communication module (3.7) links to each other with main control unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202891515U CN202220626U (en) | 2011-08-10 | 2011-08-10 | Monitoring protector for oil level of oil tank, thermal expansion and oil servo-motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202891515U CN202220626U (en) | 2011-08-10 | 2011-08-10 | Monitoring protector for oil level of oil tank, thermal expansion and oil servo-motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220626U true CN202220626U (en) | 2012-05-16 |
Family
ID=46042653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202891515U Expired - Fee Related CN202220626U (en) | 2011-08-10 | 2011-08-10 | Monitoring protector for oil level of oil tank, thermal expansion and oil servo-motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202220626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596945A (en) * | 2015-02-02 | 2015-05-06 | 北京航空航天大学 | Radio frequency (RF) fuel hazard detection device |
| CN109594608A (en) * | 2018-12-30 | 2019-04-09 | 上海三重机股份有限公司 | Excavate oil level display control method and control system |
-
2011
- 2011-08-10 CN CN2011202891515U patent/CN202220626U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596945A (en) * | 2015-02-02 | 2015-05-06 | 北京航空航天大学 | Radio frequency (RF) fuel hazard detection device |
| CN104596945B (en) * | 2015-02-02 | 2017-04-05 | 北京航空航天大学 | Radio frequency fuel oil hazard detection device |
| CN109594608A (en) * | 2018-12-30 | 2019-04-09 | 上海三重机股份有限公司 | Excavate oil level display control method and control system |
| CN109594608B (en) * | 2018-12-30 | 2021-04-09 | 上海三一重机股份有限公司 | Excavator oil amount display control method and control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120516 Termination date: 20140810 |
|
| EXPY | Termination of patent right or utility model |