CN202256370U - Rotating speed monitoring protector - Google Patents
Rotating speed monitoring protector Download PDFInfo
- Publication number
- CN202256370U CN202256370U CN2011202891939U CN201120289193U CN202256370U CN 202256370 U CN202256370 U CN 202256370U CN 2011202891939 U CN2011202891939 U CN 2011202891939U CN 201120289193 U CN201120289193 U CN 201120289193U CN 202256370 U CN202256370 U CN 202256370U
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- circuit
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- control unit
- photoelectric isolating
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Abstract
The utility model relates to a rotating speed monitoring protector for measuring rotating speed of a rotary machine. The protector consists of a signal collecting circuit (1), a main control unit (2) and an executive circuit (3) which are connected in sequence; the signal collecting circuit (1) comprises a rotating speed sensor (1.1), a voltage clamp circuit (1.2), a filtering amplifying circuit (1.3), a photoelectric isolating circuit (1.4) and a BUF output circuit; the rotating speed sensor (1.1), the voltage clamp circuit (1.2), the filtering amplifying circuit (1.3) and the photoelectric isolating circuit (1.4) are connected in series and in sequence; and the output end of the photoelectric isolating circuit (1.4) is connected with the main control unit (2). The rotating speed monitoring protector in the utility model is easy and intuitive in operation and is capable of carrying out high-precision on-line data measurement, storage and analysis.
Description
Technical field
The utility model relates to a kind of rotation speed monitoring protection appearance, is used to measure the rotating speed of rotating machinery.
Background technology
At present, in the steam turbine operation process, need to use the monitoring and protecting appearance that it is carried out monitoring and protecting; Like rotation speed monitoring protection appearance, conventional rotation speed monitoring protection appearance reliability, long-time stability are not high, and integrated level is low; Can't high-precisionly carry out online data measures; Adopt pilot lamp to carry out the situation indication in the rotation speed monitoring protection 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 the rotation speed monitoring protection appearance that high-precision online data is measured, stored and analyzes.
The purpose of the utility model is achieved in that a kind of rotation speed monitoring protection appearance; Said protection appearance is made up of the signal acquisition circuit, main control unit and the executive circuit that link to each other successively; Said signal acquisition circuit includes speed probe, voltage clamp circuit, filter amplification circuit and photoelectric isolating circuit; Said speed probe, voltage clamp circuit, filter amplification circuit and photoelectric isolating circuit are connected successively, and the output terminal of said photoelectric isolating circuit links to each other with main control unit.
The utility model rotation speed monitoring protection appearance, the output terminal of said photoelectric isolating circuit is through the external registering instrument of BUF output circuit.
The utility model rotation speed monitoring protection 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, and 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 measurement 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 measurement range of user; The rotating machinery toothed disc number of teeth can be provided with through the keyboard of people's machine circuit on the spot, to adapt to distinct device, greatly facilitates user installation debugging and use.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model rotation speed monitoring protection appearance.
Wherein:
Signal acquisition circuit 1, main control unit 2, executive circuit 3;
Speed probe 1.1, voltage clamp circuit 1.2, filter amplification circuit 1.3, photoelectric isolating circuit 1.4, BUF output circuit 1.5;
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 rotation speed monitoring protection appearance that the utility model relates to, said protection appearance is made up of the signal acquisition circuit 1, main control unit 2 and the executive circuit 3 that link to each other successively,
Said signal acquisition circuit 1 includes speed probe 1.1, voltage clamp circuit 1.2, filter amplification circuit 1.3, photoelectric isolating circuit 1.4 and BUF output circuit 1.5; Said speed probe 1.1, voltage clamp circuit 1.2, filter amplification circuit 1.3 and photoelectric isolating circuit 1.4 are connected successively; The output terminal of said photoelectric isolating circuit 1.4 links to each other with main control unit 2, and the output terminal of said photoelectric isolating circuit 1.4 is through BUF output circuit 1.5 external registering instruments;
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 host computers 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; The signal of speed probe 1.1 via voltage clamp circuit 1.2, filter amplification circuit 1.3 and photoelectric isolating circuit 1.4 after; Convert the impulse level signal into; Signal frequency or pulsewidth and rotating speed are linear, and this level signal is carried out record via BUF output circuit 1.5 external registering instruments simultaneously.
Photoelectric isolating circuit 1.4 converts tach signal into impulse level signal input main control unit 2; Main control unit 2 is through computing; Data parameters is carried out the parameter setting via display driver circuit 3.1 input people machine circuits 3.2; This data parameters with after the digital simulationization, is seen 4-20mA electric current through current output circuit 3.6 via D/A module 3.5 simultaneously, sends into the DCS master system and realizes 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 backs, and hazard lamp is bright on the interface of people's machine circuit 3.2 at this moment, and communication module 3.7 carries out data transmission simultaneously.
Claims (3)
1. a rotation speed monitoring is protected appearance; It is characterized in that: said protection appearance is made up of the signal acquisition circuit (1) that links to each other successively, main control unit (2) and executive circuit (3); Said signal acquisition circuit (1) includes speed probe (1.1), voltage clamp circuit (1.2), filter amplification circuit (1.3) and photoelectric isolating circuit (1.4); Said speed probe (1.1), voltage clamp circuit (1.2), filter amplification circuit (1.3) and photoelectric isolating circuit (1.4) are connected successively, and the output terminal of said photoelectric isolating circuit (1.4) links to each other with main control unit (2).
2. a kind of according to claim 1 rotation speed monitoring protection appearance, it is characterized in that: the output terminal of said photoelectric isolating circuit (1.4) is through the external registering instrument of BUF output circuit (1.5).
3. a kind of according to claim 1 or claim 2 rotation speed monitoring protection 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 |
|---|---|---|---|
| CN2011202891939U CN202256370U (en) | 2011-08-10 | 2011-08-10 | Rotating speed monitoring protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202891939U CN202256370U (en) | 2011-08-10 | 2011-08-10 | Rotating speed monitoring protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256370U true CN202256370U (en) | 2012-05-30 |
Family
ID=46117589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202891939U Expired - Fee Related CN202256370U (en) | 2011-08-10 | 2011-08-10 | Rotating speed monitoring protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007282A (en) * | 2014-06-13 | 2014-08-27 | 四川亚美动力技术有限公司 | Engine gasifier turbine rotating-speed and/or free turbine rotating-speed detection circuit |
| CN111913001A (en) * | 2019-05-07 | 2020-11-10 | 上海宝信软件股份有限公司 | Rotating speed measuring device and method suitable for bell-type furnace fan |
-
2011
- 2011-08-10 CN CN2011202891939U patent/CN202256370U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007282A (en) * | 2014-06-13 | 2014-08-27 | 四川亚美动力技术有限公司 | Engine gasifier turbine rotating-speed and/or free turbine rotating-speed detection circuit |
| CN111913001A (en) * | 2019-05-07 | 2020-11-10 | 上海宝信软件股份有限公司 | Rotating speed measuring device and method suitable for bell-type furnace fan |
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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: 20120530 Termination date: 20140810 |
|
| EXPY | Termination of patent right or utility model |