CN209637934U - A kind of contactless wriggling measuring device - Google Patents

Abstract

A kind of contactless wriggling measuring device, including measuring unit, measuring unit are electrically connected by trim panel with PCC controller；Measuring unit includes wriggling measurement sensor, and wriggling measurement sensor is mounted on the fluted disc two sides of big axis；PCC controller is electrically connected with human-computer interaction interface, output module and input module respectively；Measuring unit is electrically connected with control switch, and control switch is electrically connected with input module；Input module is for receiving input instruction signal；Human-computer interaction interface is alarmed for realizing fault-signal, measurement data is shown and the function of device operation.The present apparatus realizes monitoring in such a way that light wriggling detection sensor captures pulse, and measurement accuracy is high, and high sensitivity is at low cost, and cost performance is high.

Description

A kind of contactless wriggling measuring device

Technical field

The utility model belongs to hydroelectric power plant's observation and control technology field, in particular to a kind of contactless wriggling measuring device.

Background technique

Unit is wriggled extremely big to the harm of turbine-generator units bearing.For the unit of vertical structure, unit is wriggled main Damage thrust bearing；For the unit of horizontal type structure, wriggling can all generate harm to guide bearing and thrust bearing.If unit exists Start to wriggle under shutdown status, wriggling measuring device alarms movement, and unit will automatically engage air lock device, starts high pressure oil system System.Big axis wriggling overlong time, is easy to cause dry friction burning accident.It is used for the high water head unit or rotation easily wriggled Lesser unit is measured, generally can all install wriggling measuring device additional, but is one very difficult to accurately measure unit wriggling Often there is situations such as vermiculator malfunction or wrong report failure, directly reduction unit wriggling monitoring efficiency and Automated water in thing It is flat.Currently, the device that measurement is wriggled has mechanical and pneumatic type peristalsis monitoring device, there is following lack in use Point:

1, the clutch state that mechanical peristalsis monitoring device relies primarily between the flexible and big axis of friction lever is opened by fine motion Close whether feedback unit generates wriggling.Such monitoring device needs individually add the equipment such as fluid pressure line and solenoid valve, and pipeline is set Count more complicated, control design case is comparatively laborious, and especially wriggling state feedback is easy to appear maloperation situation, and measurement accuracy compares Low, output node is unreliable.

2, pneumatic type peristalsis monitoring device is mainly the gas source for passing through roller operating mechanism and connecting electromagnetic valve coil, makes piston Bar releases rotary encoder and roller, contacts with the big axis of unit and carries out clutch.There are the gas leakage of gas source pipeline and electricity for such mode The problems such as magnet valve hair fastener, while the hardwire node of its device output is easy to appear output not in the environment of greasy dirt and big vibration Reliable situation.

Utility model content

In view of technical problem present in background technique, the contactless wriggling measurement dress of one kind provided by the utility model It sets, monitoring is realized in such a way that light wriggling detection sensor captures pulse, measurement accuracy is high, and high sensitivity is at low cost, system Cost performance is high.

In order to solve the above-mentioned technical problem, the utility model takes following technical solution to realize:

A kind of contactless wriggling measuring device, including measuring unit, measuring unit pass through trim panel and PCC controller electricity Connection；Measuring unit includes wriggling measurement sensor, and wriggling measurement sensor is mounted on the fluted disc two sides of big axis；PCC controller It is electrically connected respectively with human-computer interaction interface, output module and input module, control switch is electrically connected with input module；Measuring unit It is electrically connected with control switch；Input module is for receiving input instruction signal；Human-computer interaction interface is for realizing fault-signal report Alert, measurement data is shown and the function of device operation.

In preferred scheme, the input instruction signal include power-on command, halt command, vermiculator investment or The signals such as exit instruction.

In preferred scheme, the output module is electrically connected by the output of hard contact with indicator light, human-computer interaction interface By communication output for being electrically connected with monitoring system.

In preferred scheme, the instruction source of the input instruction signal is from monitoring system and human-computer interaction interface.

In preferred scheme, the wriggling measurement sensor quantity is two, and two wriggling measurement sensors are located at big The fluted disc two sides of axis, and with big axis center axis at horizontal 180 degree angle.

In preferred scheme, the data of the measuring unit measurement carry out data filtering and conversion process by trim panel The high speed counting module being transmitted in PCC controller afterwards.

In preferred scheme, independent power module power supply, PCC control is respectively adopted in human-computer interaction interface and measuring unit Device is powered using individual PLC power template.

In preferred scheme, the wriggling measurement sensor is that proximity wriggling detection sensor or photo-electric are wriggled and examined Survey sensor.

This patent can reach it is following the utility model has the advantages that

1, proximity wriggling detection sensor or photo-electric wriggling detection sensor probe induction provided by the utility model Apart from larger, measurement accuracy is high, effectively improves the accuracy of channel measurement, improves the reliability of the present apparatus；It avoids There is blocking gas leakage, acts the risks such as insensitive in mechanical vermiculator solenoid valve, avoids adjustment by wheeled operating mechanism The trouble of rotary encoder angle effectively increases the reliability for monitoring of wriggling；

2, the utility model is wriggled using conventional fluted disc induction type and is monitored, and passes through light wriggling detection sensor and captures pulse Mode realizes monitoring, and measurement accuracy is high, and high sensitivity is at low cost, and cost performance is high；

3, the utility model uses the PCC of import for controller, stability and reliability with higher；The measurement of offer Device has self-diagnostic function, and when wriggling measurement sensor breaks down, system can veto faulty channel, this mechanism automatically Use can effectively inhibit bursty interference, and reject fault-signal, greatly improve the fault-tolerant ability of measuring device, thus The reliability of progress system；

4, the utility model had both been able to achieve hand/automatic switching function, is also able to achieve now to throw with a distant place and moves back function, user Just, multiple functional；

5, there is wriggling measuring device provided by the utility model independent power of alterating and direct current to power simultaneously and form redundancy Power-supply system, two paths of signals while defeated people improve power supply reliability.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawings and examples:

Fig. 1 is the utility model module connection figure；

Fig. 2 is the utility model wriggling measurement sensor schematic view of the mounting position；

Fig. 3 is the utility model wriggling measurement sensor and fluted disc installation site partial enlarged view.

In figure: PCC controller 1, control switch 2, measuring unit 3, trim panel 4, input instruction signal 5, power module 6, Hard contact output 7, indicator light 9, output module 10, input module 11, big axis 12, fluted disc 13, is wriggled and is surveyed at human-computer interaction interface 8 Quantity sensor 14, communication output 15, monitoring system 16, PLC power template 17.

Specific embodiment

Preferred scheme is as shown in Figure 1 to Figure 3, a kind of contactless wriggling measuring device, including measuring unit 3, measurement Unit 3 is electrically connected by trim panel 4 with PCC controller 1；Measuring unit 3 includes wriggling measurement sensor 14, measurement sensing of wriggling Device 14 is mounted on 13 two sides of fluted disc of big axis 12；PCC controller 1 respectively with human-computer interaction interface 8, output module 10 and input mould Block 11 is electrically connected, and control switch 2 is electrically connected with input module 11；Measuring unit 3 is electrically connected with control switch 2；

Input module 11 is for receiving input instruction signal 5；

Human-computer interaction interface 8 is alarmed for realizing fault-signal, measurement data is shown and the function of device operation；

The control switch 2 is the contact switch of intermediate relay, for receiving unit booting and halt instruction, in turn The data controlled between measuring unit 3 and PCC controller 1 are transmitted；When the input module 11 of the present apparatus receives halt instruction, Control switch 2 acts, and connects the data-signal between measuring unit 3 and PCC controller 1, and vermiculator puts into operation carry out machine Group, which is wriggled, to be monitored；When input module 11 receives power-on instruction, 2 involution of control switch disconnects measuring unit 3 and PCC controller 1 High speed counting module between data exchange, avoid unit operate normally when vermiculator continue to run, prevent wriggle fill Malfunction is set, device reliability is effectively increased.

Preferred scheme is as shown in Figure 1, input instruction signal 5 includes power-on command, the investment of halt command, vermiculator Or the signals such as exit instruction.

Preferred scheme is as shown in Figure 1, the output module 10 is electrically connected by hard contact output 7 with indicator light 9, people Machine interactive interface 8 is by communication output 15 for being electrically connected with monitoring system 16；It is dynamic that wriggling can be set in human-computer interaction interface 8 Work value and resetting value can check the information such as wriggling measured value, peristaltic action and alarm record.

Preferred scheme as shown in Figure 1, the instruction source of input instruction signal 5 from monitoring system 16 and human-computer interaction circle Face 8.

Preferred scheme is as shown in Figures 2 and 3, and 14 quantity of wriggling measurement sensor is two, two wriggling measurement sensings Device 14 is located at 13 two sides of fluted disc of big axis 12, and with big 12 central axis of axis at horizontal 180 degree angle；To measure big 12 different direction of axis Wriggling situation, avoid occurring the case where malfunction simultaneously, wriggling measurement sensor 14 and 13 distance of fluted disc, which are maintained at probe, to be allowed Induction range in.

Preferred scheme is as shown in Figure 1, the data that measuring unit 3 measures carry out data filtering and transformation by trim panel 4 The high speed counting module being transmitted to after processing in PCC controller 1.

Preferred scheme is as shown in Figure 1, the independent confession of power module 6 is respectively adopted in human-computer interaction interface 8 and measuring unit 3 Electricity, PCC controller 1 is powered using individual PLC power template 17, to guarantee the power supply reliability of the present apparatus.

Preferred scheme is as shown in Figure 1, wriggling measurement sensor 14 is that proximity wriggling detection sensor or photo-electric are compacted Dynamic detection sensor；Wriggling measurement sensor 14 preferentially uses Yi Fumen brand aperture for M12, distance of reaction 7mm IFB3007-ANKG/M/V4A/US probe, uses output based version for the capacitive approach switch of the DC three-wire system of NPN；

When the big axis 12 of turbine-generator units is wriggled, incuded by the wriggling measurement sensor 14 of proximity or photo-electric Generate wriggling signal, the pulse signal that reflection unit is wriggled, by the filtering of trim panel 4, shaping and conversion process pulse signal Afterwards, through high speed counting module calculate unit generation wriggling value after on send to PCC controller 1, through PCC controller 1 processing after It will send in relevant data acquisition signal, wriggling state and fault alarm information to the human-computer interaction interface 8 with touch screen, and lead to Contact output 7 really up to the mark feeds back to indicator light 9 with warning note, connects monitoring system 16 by 15 ends of communication output and carries out to equipment Monitoring；

The indicator light 9 is used to refer to failure report preferentially using the XB2-BVB4LC of the red of Schneider and white model The signals such as alert and power monitoring；

The PCC controller 1 preferentially uses 0202 CPU module of CP of Bei Jialai X20 series, using with hot plug function The I/O module and high speed counting module, the high speed counting module of energy preferentially use Bei Jialai DM455 module；

Touch screen used by human-computer interaction interface preferentially uses 19 cun of high clear colorful LCD touches of Bei Jialai imported with original packaging Industrial personal computer, the electric supply system with independent PLC power template 17 power supply and backup battery；

The power module 6 preferentially uses Switzerland's imported with original packaging ABB redundant power, it is possible to provide AC220V and DC24V is different The power supply of grade.

The working principle of whole device is as follows:

Peristalsis monitoring device output signal malfunction in order to prevent controls peristalsis monitoring device under different unit operating conditions Throwing is moved back, and peristalsis monitoring device can realize that automatically and manually two ways throwing is moved back, when unit, which is in, shuts down state, monitoring system process A distant place automatically engages peristalsis monitoring device；When unit is in run mode, a monitoring system process distant place automatically exits from wriggling monitoring Device；

Peristalsis monitoring device now is put into and exited manually it is also possible to realize in human-computer interaction interface 8, is being monitored Operator, which can artificially throw, in system moves back throwing and moves back peristalsis monitoring device；

Wriggling measuring device itself can be controlled between wriggling measurement sensor 14 and PCC controller 1 by control switch 2 Data transmission, when vermiculator receives halt instruction, control switch 2 is acted, and connects measuring unit 3 and PCC controller 1 Between data-signal, vermiculator put into operation carries out unit wriggle monitoring；When vermiculator receives power-on instruction, control 2 involution of switch is made, the data exchange between measuring unit 3 and the high speed counting module of PCC controller 1 is disconnected, avoids in unit Vermiculator continues to run when normal operation, prevents vermiculator malfunction, effectively increases device reliability；

Meanwhile output wriggling is carried out by locking unit run mode or shutdown state in the control program of PCC controller 1 The analog quantity of device and the output switch parameter for alarm of wriggling can as the barring condition of wriggling sensor measurement data validity The reliability of 3 measurement data of measuring unit is further increased, and then improves the reliability of vermiculator output node；I.e. unit exists When shutting down state, the measurement data of wriggling sensor is effective, further participates in wriggling judgement and warning output, otherwise, unit is being transported Wriggling measurement sensor 14 is measured as invalid data when row state, is rejected, and acquisition data and judging result are not exported.

The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model System, the technical solution that the protection scope of the utility model should be recorded with claim, the technical solution recorded including claim The equivalents of middle technical characteristic are protection scope.Equivalent replacement i.e. within this range is improved, also in the utility model Protection scope within.

Claims (8)

1. a kind of contactless wriggling measuring device, it is characterised in that: including measuring unit (3), measuring unit (3) passes through shaping Plate (4) is electrically connected with PCC controller (1)；Measuring unit (3) includes wriggling measurement sensor (14), wriggling measurement sensor (14) fluted disc (13) two sides of big axis (12) are mounted on；PCC controller (1) respectively with human-computer interaction interface (8), output module (10) it is electrically connected with input module (11)；Measuring unit (3) is electrically connected with control switch (2), control switch (2) and input module (11) it is electrically connected；

Input module (11) is for receiving input instruction signal (5)；

Human-computer interaction interface (8) is alarmed for realizing fault-signal, measurement data is shown and the function of device operation.

2. a kind of contactless wriggling measuring device according to claim 1, it is characterised in that: input instruction signal (5) Including power-on command, halt command, the investment of vermiculator or exit instruction signal.

3. a kind of contactless wriggling measuring device according to claim 1, it is characterised in that: the output module (10) by hard contact output (7) be electrically connected with indicator light (9), human-computer interaction interface (8) by communication export (15) for Monitoring system (16) electrical connection.

4. a kind of contactless wriggling measuring device according to claim 2 or 3, it is characterised in that: input instruction signal (5) instruction source is from monitoring system (16) and human-computer interaction interface (8).

5. a kind of contactless wriggling measuring device according to claim 1, it is characterised in that: wriggling measurement sensor (14) quantity is two, and two wriggling measurement sensors (14) are located at fluted disc (13) two sides of big axis (12), and with big axis (12) Central axis is at horizontal 180 degree angle.

6. a kind of contactless wriggling measuring device according to claim 1, it is characterised in that: measuring unit (3) measurement Data the high-speed counting mould being transmitted to after data filtering and conversion process in PCC controller (1) is carried out by trim panel (4) Block.

7. a kind of contactless wriggling measuring device according to claim 1, it is characterised in that: human-computer interaction interface (8) Independent power module (6) power supply is respectively adopted with measuring unit (3), PCC controller (1) uses individual PLC power template (17) it powers.

8. a kind of contactless wriggling measuring device according to claim 1, it is characterised in that: wriggling measurement sensor It (14) is proximity wriggling detection sensor or photo-electric wriggling detection sensor.