CN208203480U - Generator centering monitors system - Google Patents
Generator centering monitors system Download PDFInfo
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- CN208203480U CN208203480U CN201820438044.6U CN201820438044U CN208203480U CN 208203480 U CN208203480 U CN 208203480U CN 201820438044 U CN201820438044 U CN 201820438044U CN 208203480 U CN208203480 U CN 208203480U
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Abstract
The utility model relates to a kind of generator centerings to monitor system, which includes: displacement sensor, acquisition device and the main control device being arranged in inside fan engine room；Wherein, displacement sensor is electrically connected with acquisition device, and acquisition device is electrically connected by interchanger with main control device；The shaking for the generator that displacement sensor will test is displaced corresponding voltage output to acquisition device, acquisition device exports after converting voltages into shaking displacement to main control device, so that main control device determines whether generator is currently in Shaft alignment state according to the size for shaking displacement and preset alarm displacement threshold value, and warning message is exported when generator is in non-Shaft alignment state.The system substantially increases the overhaul efficiency of blower；The monitoring system of the generator centering simultaneously is that whether therefore the monitoring in substantially increases the working efficiency of blower to completion generator under fan operation state.
Description
Technical field
The utility model relates to wind-power electricity generations to monitor field, monitor system more particularly to generator centering.
Background technique
With the development of the global economy, people are favored and are generated electricity in using renewable resource very much, wherein wind is one kind
Clean renewable resource is converted into mechanical kinetic energy in the kinetic energy that wind power plant is kept watch, then mechanical kinetic energy is converted into electric power
Kinetic energy, to realize wind-power electricity generation.Device needed for wind-power electricity generation is blower, and the kinetic energy kept watch in blower is converted to mechanical energy
The revolving speed of wind wheel is relatively low, and since the size and Orientation of wind-force often changes, so that the wind speed round in blower is unstable, because
This, before wind wheel drives electrical power generators, it is also necessary to increase by one and the revolving speed of wind wheel is increased to generator rated speed
Step-up gear.In blower work, the armature spindle of generator and the shaft of step-up gear need to be in error range
Shaft alignment state, otherwise, blower will break down.
In traditional technology, whether it is in Shaft alignment state in the armature spindle of detection generator and the shaft of step-up gear, is
Detected when blower remains static, specifically: generator armature spindle or step-up gear shaft its
In an axis on fix a laser light source, fixed on another axis one reception laser light source device, when receive swash
When the device of radiant can receive laser light source (including the laser light source that receives in the error range of permission), then illustrate
The armature spindle of generator and the shaft of step-up gear are in Shaft alignment state, otherwise, illustrate the armature spindle and speedup tooth of generator
The shaft of roller box is in non-Shaft alignment state.
But whether the armature spindle of this detection generator and the shaft of step-up gear are in centering shape in traditional technology
The mode efficiency of state is lower, and the working efficiency for also resulting in blower reduces.
Utility model content
Based on this, it is necessary to whether locate for the shaft of the armature spindle and step-up gear that detect generator in traditional technology
It is lower in the mode efficiency of Shaft alignment state, and the ineffective problem of blower is also resulted in, a kind of generator pair is provided
Middle monitoring system.
A kind of generator centering monitors system, comprising: be arranged in displacement sensor inside fan engine room, acquisition device and
Main control device；Wherein, displacement sensor is electrically connected with acquisition device, and acquisition device is electrically connected by interchanger with main control device；
The shaking for the generator that displacement sensor will test is displaced corresponding voltage output to acquisition device, acquisition device
Output is to main control device after converting voltages into shaking displacement, so that main control device is displaced according to shaking displacement and preset alarm
The size of threshold value determines whether generator is currently in Shaft alignment state, and exports alarm signal when generator is in non-Shaft alignment state
Breath.
Main control device includes: the Master Control Room clothes for storing the shaking displacement of acquisition device output in one of the embodiments,
Business device, user equipment；
Acquisition device is electrically connected by interchanger with Master Control Room server, and Master Control Room server is electrically connected with user equipment.
Generator centering monitoring system includes multiple displacement sensors, multiple displacement sensings in one of the embodiments,
Device includes: the first displacement sensor that the bottom of generator is arranged in a non-contact manner and the side that is positioned close to generator
The second displacement sensor of first predetermined position of wall；
Radial vertical shake that first displacement sensor detects generator is displaced corresponding voltage, the inspection of second displacement sensor
The radial level for surveying generator, which shakes, is displaced corresponding voltage.
The first displacement sensor is two in one of the embodiments, is separately positioned on generator along axial level side
To both ends；
Second displacement sensor is two, is separately positioned on generator along the both ends of axial horizontal direction.
Multiple displacement sensors in one of the embodiments, further include: third displacement sensor, third displacement sensor
It is positioned close to the second predetermined position of the armature spindle of generator；
The axial horizontal jitter that third displacement sensor detects generator is displaced corresponding voltage.
Multiple displacement sensors in one of the embodiments, further include: the 4th displacement sensor, the 4th displacement sensor
It is positioned close to the third predetermined position of the gear-box shaft of blower；
Acquisition device is by the generator determined according to the temperature drift voltage of voltage and the detection of the 4th displacement sensor in not Tongfang
Upward practical shaking displacement output to Master Control Room server so that user equipment according to generator different directions practical rolling
Whether dynamic displacement and alarm displacement threshold value determine generator currently in Shaft alignment state.
Generator centering monitors system in one of the embodiments, further include: fan operation data server, blower fortune
Row data server is electrically connected with Master Control Room server；
Master Control Room server by the fan operation data at the current time obtained from fan operation data server and
History fan operation data are exported to user equipment, so that user equipment determines alarm displacement threshold value；Fan operation data include:
At least one of extraneous wind speed, the revolving speed of generator rotor shaft when power, the blower of generator work.
User equipment includes display screen in one of the embodiments, and display screen shows user equipment according to radial vertical
The axle center for shaking the displacement generator determining with radial level shaking displacement is displaced accumulation graph.
Acquisition device includes: to be communicated by ICP/IP protocol with Master Control Room server in one of the embodiments,
Data acquisition and monitoring station.
Data acquisition and monitoring station passes through interchanger and optical fiber ring network and Master Control Room server electricity in one of the embodiments,
Connection.
Generator centering provided by above-mentioned monitors system, due to being provided with displacement sensing around generator in cabin
Device, then under fan operation state, the shaking that displacement sensor can still be accurately detected generator is displaced corresponding voltage
Value, that is, the shaking of armature spindle of generator are displaced corresponding voltage value, and the armature spindle for the generator that will test
It shakes the corresponding voltage value of displacement to export to acquisition device, which can will receive the shaking position of the armature spindle of generator
Corresponding voltage is moved, and the shaking that the voltage value received is converted to the armature spindle of generator is displaced, and defeated by displacement is shaken
Out to main control device, i.e., the shaking displacement of the armature spindle of generator, and main control device can be intuitively shown on main control device
It can determine to generate electricity according to the shaking displacement of the armature spindle of the generator received and the size of preset alarm displacement threshold value
Whether machine is currently in Shaft alignment state, if generator is in non-Shaft alignment state, main control device will export warning message, thus
It reminds maintenance personal to carry out the maintenance of blower, has saved the repair time of service personnel, made the maintenance it greatly improves blower
The accuracy of efficiency and repair time avoids the waste of manpower, and reduces fan trouble, to reduce production cost；
Also there is no and security hidden trouble；The monitoring system of the generator centering simultaneously is to complete generator under fan operation state
Whether the monitoring of centering, therefore, substantially increase the working efficiency of blower.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram of wind power plant；
Fig. 2 is the structural schematic diagram that the generator centering that one embodiment provides monitors system；
Displacement sensor position opposite with generator in the generator centering monitoring system that Fig. 3 a provides for another embodiment
The main view set；
Displacement sensor position opposite with generator in the generator centering monitoring system that Fig. 3 b provides for another embodiment
The left view set；
Displacement sensor and generator relative position in the generator centering monitoring system that Fig. 4 provides for another embodiment
With the relational graph of three-dimensional system of coordinate；
Fig. 5 is the structural schematic diagram that the generator centering that another embodiment provides monitors system；
Fig. 6 a is that the one of axle center of generator is displaced accumulation graph；
Fig. 6 b is that another axle center of generator is displaced accumulation graph；
Fig. 6 c is shaking displacement diagram corresponding to each displacement sensor；
Fig. 6 d is that the shaking of generator is displaced tendency chart；
Fig. 6 e is that shaking corresponding to one of displacement sensor is displaced tendency chart；
Fig. 6 f is the overview diagram of blower.
Appended drawing reference:
10: blower；101: pylon；102: generator；
103: gear-box；104: cabin；105: wind wheel；
11: fan operation data server；12: fan operation data collector；
21: displacement sensor；211: the first displacement sensors；212: second displacement sensor；
213: third displacement sensor；214: the four displacement sensors；22: acquisition device；
23: main control device；231: Master Control Room server；232: user equipment.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
With the continuous development of economic technology, people wind power plant using renewable resource wind carry out wind-power electricity generation by
Gradually by the favor of power field.The content of the utility model in order to better understand, now in conjunction with attached drawing 1 to above-mentioned wind-power electricity generation
The device of field is simply introduced.
As shown in Figure 1, wind power plant generally includes at least one blower 10 and fan operation data server 11, each
Blower 10 includes pylon 101, generator 102, gear-box 103 (usual situation is step-up gear), cabin 104, wind wheel 105.
Wherein, cabin 104 is arranged in the top of pylon 101, and wind wheel 105 is arranged in the side of the outside of cabin 104, and generator 102
The inside of cabin 104 is set with gear-box 103, it is flexible between the armature spindle of generator 102 and the shaft of gear-box 103 to connect
It connects, for example, the armature spindle of generator 102 can be connect with the shaft of gear-box 103 by shaft coupling.In addition, cabin 104 is outer
Portion is provided with fan operation data collector 12, to acquire fan operation data.A wind-powered electricity generation is included with wind power plant in Fig. 1
Unit is shown.
It should be noted that the shaft of the armature spindle and gear-box 103 that need generator 102 exists when blower 10 is run
Shaft alignment state is in error range, otherwise blower 10 will appear failure.But since gear-box 103 is to be fixed on cabin 104
Interior, i.e., with the rotation of the shaft of gear-box 103, gear-box 103 will not generate shaking displacement, and generator 102 can be with
The rotation of the armature spindle of generator 102 and generate shaking displacement, in this way, with the growth of time, the armature spindle of generator 102
It will likely can be in non-Shaft alignment state in error range with the shaft of gear-box 103.
In traditional technology, only when blower 10 is in static state, the armature spindle and gear-box of generator 102 could be detected
Whether 103 shaft is in Shaft alignment state, and this detection mode efficiency is lower, and also results in the working efficiency drop of blower
It is low.Generator centering monitoring system provided by the utility model aims to solve the problem that the technical problem as above of traditional technology.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, it by following embodiments and ties
Attached drawing is closed, the technical scheme in the embodiment of the utility model is described in further details.It should be appreciated that tool described herein
Body embodiment only to explain the utility model, is not used to limit the utility model.
Fig. 2 is the structural schematic diagram that the generator centering that one embodiment provides monitors system.As shown in Fig. 2, the power generation
It includes: displacement sensor 21, acquisition device 22 and the main control device being arranged in inside fan engine room 104 that machine centering, which monitors system,
23；Wherein, displacement sensor 21 is electrically connected with acquisition device 22, and acquisition device 22 is electrically connected by interchanger with main control device 23
It connects；The corresponding voltage output of shaking displacement for the generator 102 that displacement sensor 21 will test is described to adopt to acquisition device 22
Output is to the main control device 23 after the voltage is converted to the shaking displacement by acquisition means 22, so that the main control device 23
Determine that the generator 102 is current whether in centering shape according to the size for shaking displacement and preset alarm displacement threshold value
State, and warning message is exported when the generator 102 is in non-Shaft alignment state.It should be noted that being not drawn into Fig. 1 in Fig. 2
In fan operation data server 11, generator 102, gear-box 103 and fan operation data collector 12.
Specifically, upper displacement sensors 21 can be passed using current vortex sensor or Hall sensor or differential transformer
Sensor etc., which is non-contact displacement transducer, for various measurands to be converted to electricity, example
Such as, in the present embodiment, the shaking displacement that generator 102 generates when fan operation is converted to voltage output by displacement sensor 21.
Since the shaking that the displacement sensor 21 is the generator 102 when running for detection blower fan is displaced corresponding voltage, position
Displacement sensor 21 is arranged in around generator 102, and with the non-contact setting of generator 102.Optionally, generator 102 and position
The distance between displacement sensor 21 can be 2.5mm, referring to shown in following Fig. 3 a and Fig. 3 b.
The voltage that generator 102 exports can be converted to the shaking displacement of generator 102 by above-mentioned acquisition device 22, and will
The shaking displacement transmission is to main control device.The shaking of voltage and generator 102 that above-mentioned conversion is exported using displacement sensor 21
The corresponding relationship of displacement is converted, that is, the range for the voltage that such as displacement sensor 21 exports is 1~5V, corresponding hair
The range of the shaking displacement of motor 102 is -2mm~2mm (it should be noted that one of direction that generator 102 is shaken
Displacement be set as positive value, then, displacement when generator 102 shakes round about is then negative value), then, work as displacement sensor
When the voltage of 21 outputs is 1V, the shaking displacement of generator 102 is -2mm, and when the voltage that displacement sensor 21 exports is 3V
When, the shaking displacement of generator 102 is 0mm, and so on.In addition, the acquisition device can be also used for the hair to the present embodiment
Motor centering monitors 21 state of network communication status, serial communication state and displacement sensor of system etc. and carries out self-test, if from
Abnormal with the presence of any one state when inspection, then the exception that will test is sent to main control device 23, and on main control device 23
It is particularly shown the position for abnormality occur, when convenient for abnormality occur, maintenance personal is quickly found out abnormal position.
Above-mentioned main control device 23 is used to receive the shaking displacement of the output of acquisition device 22, and main control device 23 is according to reception
To shaking displacement and the size of preset alarm displacement threshold value determine that generator 102 is current whether in Shaft alignment state, and
Generator 102 exports warning message when being in non-Shaft alignment state.Optionally, above-mentioned main control device 23 can be for data storage
With the computer equipment of data processing function, and main control device 23 be can be set in master control computer room in order to multiple groups blower
10 are managed collectively.
Optionally, it can be electrically connected by connecting line between displacement sensor 21 and acquisition device 22, for example, the connecting line
It can be using the twisted pair with shielded layer.Optionally, acquisition device 22 can be electrically connected by interchanger with main control device 23,
Certainly, when it is that fan engine room 104 is higher from the ground that the pylon 101 of blower 10 is higher, acquisition device 22 can also pass through two
Interchanger is connect with main control device 23, as in Fig. 2 with two interchangers be exemplify, one of switch configuration is in cabin
Inside 104, and be electrically connected with acquisition device 22, and another switch configuration 101 bottom end of pylon (i.e. 101 pedestal of pylon) with
It acquires equipment 23 to be electrically connected, is also equally electrical connection, certainly, acquisition device 22, interchanger, main control device between two interchangers
Electrical connection between 23 can be attached using the twisted pair with shielded layer.
Seen from the above description, in traditional technology detection generator 102 armature spindle and gear-box 103 shaft whether
When in Shaft alignment state, only detection just can be carried out when blower 10 is in static, no matter the armature spindle and gear of i.e. generator
Whether the shaft of case is in Shaft alignment state, controls blower as long as reaching the preset repair time and stops working, if detection hair
The armature spindle of existing generator and the shaft of gear-box are in Shaft alignment state, fan operation are reopened, since each blower is adopted
With this detection mode, therefore cause detection efficiency lower, while the working efficiency of blower also being caused to reduce；Without
Reach the preset repair time, and the shaft of the armature spindle of generator and gear-box is in non-Shaft alignment state, and service personnel does not have
There is timely discovery, it will have very big security risk, and may also therefore cause fan trouble, be produced into increase
This.But in the present embodiment, it by fixed displacement sensor non-contact around generator, may be implemented to transport in blower
When row, main control device can be displaced by the shaking of the generator got, by shaking displacement and the preset report of generator
Alert displacement threshold value is compared, so that it may accurately determine whether generator is in Shaft alignment state, it greatly improves determine to send out
Whether motor is in the accuracy of Shaft alignment state, to substantially increase the overhaul efficiency of blower, and that there is no safety is hidden
Suffer from.
Generator centering provided in this embodiment monitors system, due to being provided with displacement sensing around generator in cabin
Device, then under fan operation state, the shaking that displacement sensor can still be accurately detected generator is displaced corresponding voltage,
Namely the shaking of the armature spindle of generator is displaced corresponding voltage, and acquisition device can receive the shaking of the armature spindle of generator
It is displaced corresponding voltage, and the shaking that the voltage received is converted to the armature spindle of generator is displaced, and defeated by displacement is shaken
Out to main control device, main control device can be displaced according to the shaking of the armature spindle of the generator received and preset alarm is displaced
The size of threshold value determines generator currently whether in Shaft alignment state, if generator is in non-Shaft alignment state, master control is set
It is standby to export warning message, so that maintenance personal be reminded to carry out the maintenance of blower, the repair time of service personnel is saved, it is made
The overhaul efficiency of blower and the accuracy of repair time are substantially increased, avoids the waste of manpower, and reduce fan trouble,
To reduce production cost and security risk；The monitoring system of the generator centering simultaneously is that hair is completed under fan operation state
Motor whether the monitoring of centering, therefore, substantially increase the working efficiency of blower.
System is monitored with continued reference to generator centering shown in Fig. 2, optionally, above-mentioned main control device 23 includes: that storage is adopted
Master Control Room server 231, the user equipment 232 for the shaking displacement that acquisition means 22 export；Acquisition device 22 is by interchanger and always
It controls room server 231 to be electrically connected, Master Control Room server 231 is electrically connected with user equipment 232.
Optionally, Master Control Room server 231 can use the server of the either multiple server compositions of independent server
Cluster is realized, if Master Control Room server 231 is the server cluster of multiple servers composition, each server with use
Family equipment 232 is electrically connected, and each server can be electrically connected multiple acquisition devices 22.Optionally, user equipment 232 can with but
It is not limited to various personal computers, laptop, tablet computer, smart phone.Above-mentioned acquisition device 22 can pass through friendship
It changes planes and is electrically connected with Master Control Room server 231, Master Control Room server 231 is electrically connected with user equipment 232, which can adopt
It is attached with the twisted pair with shielded layer, also, optional, acquisition device 22 can also pass through interchanger and optical fiber ring network
It is attached with Master Control Room server 231.And between Master Control Room server 231 and user equipment can also using cable,
The modes such as optical fiber or wireless communication.
As a kind of optional embodiment, acquisition device 22 include: by ICP/IP protocol and Master Control Room server 231 into
The data acquisition and monitoring station of row communication.Certainly, data acquisition and monitoring station can be taken by interchanger and light looped network and Master Control Room
Business device 231 is electrically connected.It should be noted that passing through two interchangers and light looped network and Master Control Room in Fig. 2 with acquisition device 22
Server 231 electrically connects as exemplifying.
It should be noted that in the present embodiment, the shaking displacement of generator 102 by year, month, day, when, minute, second format
Be stored in Master Control Room server 231, after this storage mode is stored, staff check a certain year or certain January or
When the historical data of person some day, same sets of data is used, without according to each year or per January or every day
Format is stored respectively, thus greatly reduces the amount of storage of Master Control Room server 231.
Generator centering provided in this embodiment monitors system, and main control device includes the shaking for storing acquisition device output
The Master Control Room server and user equipment of displacement, by Master Control Room server by using year, month, day, hour, min, the format of second
Displacement is shaken in storage, is greatly reduced the amount of storage of data, has been saved memory space.In addition, storage and place that displacement will be shaken
Reason is separated and is carried out on Master Control Room server and user equipment, is improved storage and is shaken the safety of displacement, and is reduced total
Control the processing expense of room server.
Displacement sensor and generator relative position in the generator centering monitoring system that Fig. 3 a provides for one embodiment
Schematic diagram, Fig. 3 b is displacement sensor position opposite with generator in the generator centering monitoring system that provides of another embodiment
The schematic diagram set, wherein Fig. 3 a is the main view of displacement sensor and generator relative position, and Fig. 3 b is displacement sensor and hair
The left view of motor relative position.Optionally, as shown in Figure 3a, 3b, the monitoring of generator centering provided by the present embodiment system
System can also include multiple displacement sensors 21, and multiple displacement sensors 21 include: that generator is arranged in a non-contact manner
Bottom the first displacement sensor 211 and be positioned close to the second displacement of the first predetermined position of side wall of generator and pass
Sensor 212；Radial vertical shake that first displacement sensor 211 detects generator 102 is displaced corresponding voltage, and second displacement passes
The radial level that sensor 212 detects generator 102, which shakes, is displaced corresponding voltage.
Specifically, as described above, displacement sensor 21 is used to detect electricity corresponding to the shaking displacement of generator 102
Pressure, and the shaking of generator 102 includes the shaking of the top to bottom, left and right, front and rear of generator 102, by teetertottering for generator 102
It is defined as the radial vertical shaking of generator 102, i.e., referring to the Y direction in three-dimensional system of coordinate shown in Fig. 4, works as generator
When 102 upward shaking, the forward direction of corresponding Y-axis.In addition, swaying forwards and backwards for generator 102 is defined as the radial water of generator 102
Flat to shake, i.e., referring to the Z-direction in three-dimensional system of coordinate shown in Fig. 4, when generator 102 shakes forward, corresponding Z axis is just
To.The double swerve of generator 102 is defined as the axial of generator 102 to shake, i.e., referring in three-dimensional system of coordinate shown in Fig. 4
X-direction, when generator 102 shakes to the right, the forward direction of corresponding X-axis.
It should be noted that the double swerve of generator 102 is side of the generator 102 along the armature spindle of generator 102
To the shaking of progress, the direction of generator 102 swayed forwards and backwards for generator 102 perpendicular to the armature spindle of generator 102 is carried out
Horizontal jitter, generator 102 teetertotter for generator 102 perpendicular to the armature spindle of generator 102 direction carry out
It is vertical to shake.
Specifically, being displaced corresponding voltage to detect radial vertical shake of generator 102, then in generator 102
The first displacement sensor 211 is arranged in bottom, since displacement sensor 21 is noncontacting proximity sensor, the first displacement sensing
Device 211 is fixed on the bottom of generator 102 in a non-contact manner, wherein general first displacement sensor 211 is arranged in distance
At the 2.5mm of 102 bottom of generator, certainly, generator can also be arranged in the first displacement sensor 211 in a non-contact manner
102 top, equally, general first displacement sensor 211 are arranged at the 2.5mm apart from 102 top of generator.And in order to examine
The radial level for surveying generator 102, which shakes, is displaced corresponding voltage, then sets second displacement sensor 212 in a non-contact manner
Set the first predetermined position in the side wall close to generator 102, wherein the first predeterminated position can be for apart from generator 102
Side wall pre-determined distance position, which is generally 2.5mm.It should be noted that the first displacement sensor 211 can be with
It is one, is also possible to multiple, second displacement sensor 212 can be one, be also possible to multiple, and above-mentioned Fig. 3 a and Fig. 3 b are only
As an example.
With continued reference to Fig. 3 a, Fig. 3 b, as a kind of optional embodiment of above-described embodiment, above-mentioned first displacement sensor
211 be two, is separately positioned on generator 102 along the both ends of axial horizontal direction；Second displacement sensor 212 is two, point
Generator 102 is not set along the both ends of axial horizontal direction.
Specifically, since the armature spindle of generator 102 is longer, the rotor for detecting generator 102 in order to be more accurate
Radial vertical shake of the axis close to gear-box 103 and far from gear-box 103 is displaced corresponding voltage, can be in generator
102 bottom and first displacement sensor 211 is respectively provided with along the both ends of axial horizontal direction；And in order to be more accurate
Detect that the armature spindle of generator 102 shakes displacement and respectively correspond close to gear-box 103 with the radial level far from gear-box 103
Voltage, second displacement sensing can be respectively provided in the side wall close to generator 102 and along the both ends of axial horizontal direction
Device 212.
Generator centering provided in this embodiment monitors system, perpendicular in the radial direction of the bottom of generator setting detection generator
It is straight to shake the first displacement sensor for being displaced corresponding voltage, in the first predetermined position of the side wall close to generator, inspection is set
The radial level for surveying generator shakes the second displacement sensor for being displaced corresponding voltage, i.e., when generator is in non-Shaft alignment state
When, it can accurately judge which direction the position after the armature spindle of generator shakes is biased into, it can quickly adjustment
The armature spindle of generator is at Shaft alignment state.In addition, by the way that two the first displacement sensors and second displacement is respectively set
Sensor, judge generator armature spindle shake after position be biased to which direction after, can also accurately judge,
It is that the armature spindle of generator is in non-centering far from one end of gear-box close to one end of gear-box or the armature spindle of generator
The position of non-centering is accurately positioned in state, according to the position of determining non-centering can high-precision adjustment generator make it
In Shaft alignment state.Meanwhile when judging whether the radial level direction of generator and radial vertical direction are in Shaft alignment state,
It can accurately be judged in operation state of generator, to substantially increase the working efficiency of blower.
It is optional with continued reference to the schematic diagram of displacement sensor 21 shown in Fig. 3 a, Fig. 3 b and 102 relative position of generator
, multiple displacement sensors 21 further include: third displacement sensor 213, third displacement sensor 213 are positioned close to generator
Second predetermined position of 102 armature spindle；Third displacement sensor 213 detects the axial horizontal jitter displacement of generator 102
Corresponding voltage.
Specifically, as described above, the shaking of generator 102 includes the shaking of the top to bottom, left and right, front and rear of generator 102,
Above-mentioned first displacement sensor 211 is used to detect the corresponding voltage of displacement that generator 102 teetertotters, and (radial direction i.e. above-mentioned is perpendicular
Directly it is displaced corresponding voltage), and above-mentioned second displacement sensor 212 is used to detect the displacement that generator 102 sways forwards and backwards and corresponds to
Voltage (i.e. radial level above-mentioned is displaced corresponding voltage).In order to detect left and right (the i.e. generator 102 of generator 102
It is axial horizontal) it shakes and is displaced corresponding voltage, the can be fixed in the second predetermined position of the armature spindle close to generator 102
Triple motion sensor 213, wherein the second predeterminated position close to the armature spindle of generator 102 is generator 102 close to gear-box
103 one end, and usually apart from generator 102 close to one end of gear-box 103 be 2.5mm.It is, of course, also possible in generator
The fixed third displacement sensor 213 in 103 one end far from gear-box 103.Only with third displacement sensor 213 in Fig. 3 a and Fig. 3 b
The second predetermined position for being fixed on the armature spindle close to generator 102 is to exemplify.
Generator centering provided in this embodiment monitors system, in the second predetermined position of the armature spindle close to generator
Provided with third displacement sensor, the axial horizontal jitter for detecting generator is displaced corresponding voltage, i.e., when generator by
When the displacement of axial horizontal jitter is greater than preset alarm threshold value, the position after the armature spindle of generator shakes can be accurately judged
Also to be proximate to gear-box far from gear-box, so as to quickly adjusted according to judging result generator armature spindle position
It is at Shaft alignment state；And generator can also accurately judge that the axial horizontal direction of generator is when being kept in motion
It is no to be in Shaft alignment state, substantially increase the working efficiency of generator.
It is optionally, multiple with continued reference to the schematic diagram of displacement sensor 21 shown in Fig. 3 a and 102 relative position of generator
Displacement sensor 21 further include: the 4th displacement sensor 214, the 4th displacement sensor 214 are positioned close to the gear-box of blower
The third predetermined position of 103 shafts；The temperature drift voltage that acquisition device 22 will be detected according to voltage and the 4th displacement sensor 214
The practical shaking displacement output of determining generator in different directions is to Master Control Room server 231, so that user equipment 232
According to generator 102 different directions practical shaking displacement and alarm displacement threshold value, determine generator 102 it is current whether in pair
Middle state.
Specifically, being easy to cause displacement sensor 21 to generate error, to influence to be displaced due to the variation of ambient temperature etc.
The shaking that sensor 21 measures generator 102 is displaced corresponding voltage value, that is, there may be errors for the voltage value measured.In order to keep away
Exempt to lead to the error of the voltage value measured due to the temperature drift error of displacement sensor 21 itself generation, in the gear-box close to blower
The 4th displacement sensor 214 is arranged in the third predetermined position of 103 shaft.4th displacement sensor 214 is a benchmark position
Displacement sensor, the voltage that the 4th displacement sensor 214 exports under normal condition are benchmark voltage, can be other displacement sensings
Device provides voltage reference.When each displacement sensor 21 belongs to normal condition, all displacement sensors 21 measure one correctly
Voltage value, still, after the reference voltage value of 214 script of the 4th displacement sensor changes, then with initial voltage base
Voltage value after quasi- value and change makees difference and obtains the temperature drift voltage of other displacement sensors, the practical shaking of other displacement sensors
The shaking that being displaced corresponding accurate voltage should measure for other displacement sensors is displaced corresponding voltage value and add deduct temperature drift electricity
Pressure, wherein when reference voltage value is greater than the voltage value after changing, the practical shaking of other displacement sensors is displaced corresponding standard
True voltage should be displaced corresponding voltage value desuperheat for the shaking that other displacement sensors measure and float voltage, otherwise similarly.For example,
Each displacement sensor 21 exports 3V voltage and belongs to normal condition, still, as time goes by, when the 4th displacement sensor
The voltage of 214 outputs is 2.8V, i.e., occurs the error of 0.2V, the i.e. temperature of the 4th displacement sensor detection compared with normal condition
Drift voltage is 0.2V, then other displacement sensors 21 will need to subtract 0.2V on the basis of the voltage measured, is only other displacements and passes
The practical shaking of sensor 21 is displaced corresponding accurate voltage.
When the shaking measured according to the first displacement sensor 211, second displacement sensor 212, third displacement sensor 213
Being displaced the temperature drift voltage that corresponding voltage and the 4th displacement sensor 214 measure determines generator 102 in different directions (before i.e.
State the direction of the top to bottom, left and right, front and rear of generator 102) practical shaking voltage after, then acquisition device 22 is according to generator
102 practical shaking voltage in different directions determines the practical shaking displacement of generator 102 in different directions, and will determine
Generator 102 all directions on practical shaking displacement transmission to Master Control Room server 231, user equipment 232 is read always
The practical shaking displacement in room server 231 in all directions of generator 102 is controlled, and by the practical rolling on the different directions
Dynamic displacement is compared with alarm displacement threshold value, determines that generator 102 is current whether in Shaft alignment state.
Generator centering provided in this embodiment monitors system, by the way that basis displacement sensor i.e. the 4th displacement sensing is arranged
Device avoids other displacement sensors since environment influences the defect for making the voltage itself measured have error, so that monitoring power generation
Whether machine is in that Shaft alignment state is more accurate, and the erroneous judgement for whether being in Shaft alignment state to generator effectively avoided, that is, works as hair
Motor is in Shaft alignment state, is not in the case where being mistaken in non-Shaft alignment state, it is, when generator is in pair
When middle state, be not in remind maintenance personal to repair generator, so, generator centering provided in this embodiment prison
Examining system can save the time of maintenance personal, improve the maintenance efficiency of blower；Also, it will not be due to erroneous judgement midway pause blower
Work, to substantially increase the working efficiency of blower.
Fig. 5 is the structural schematic diagram that the generator centering that another embodiment provides monitors system.Optionally, such as Fig. 5 institute
Show, it can also include: fan operation data server 11, fan operation that generator centering provided by the present embodiment, which monitors system,
Data server 11 is electrically connected with Master Control Room server 231；Master Control Room server 231 will be from fan operation data server 11
The fan operation data and history fan operation data at the current time of acquisition are exported to user equipment 232, so that user sets
Standby 232 determine displacement threshold value of alarming；Extraneous wind speed, power generation when fan operation data include: the power of generator, blower work
At least one of the revolving speed of machine rotor axis.It should be noted that being not drawn into fan operation data collector 12 and wind in Fig. 5
Connecting line between machine operation data server 11 and fan operation data collector 12.
Specifically, fan operation data server 11 can use the clothes of the either multiple server compositions of independent server
Device cluster be engaged in realize, each server can be electrically connected multiple fan operation data collectors 12.Fan operation data clothes
Business device 11 is used to store the fan operation data and history fan operation data and different history fan operation number at current time
According to when corresponding alarm displacement threshold value.Fan operation data server 11 can be connected with Master Control Room server 231 by cable
It connects, mode can also connect by wireless communication.
Wherein, fan operation data server 11 is obtained by the fan operation data collector 12 outside cabin 104
The fan operation data for taking current time, it is outer when the fan operation data got include the power of generator, blower work
At least one of boundary's wind speed, revolving speed of generator rotor shaft, extraneous wind speed when blower works is bigger, correspondingly, generator
The revolving speed of armature spindle is bigger, so that the power of generator is bigger, that is to say, that the function of the generator in fan operation data
The directly proportional relationship of the revolving speed three of extraneous wind speed, generator rotor shaft when rate, blower work.Due in fan operation data
Three it is directly proportional, therefore, determine alarm displacement threshold value when only with one of them.
Rule of thumb, the alarm displacement threshold value of generator 102 axially and radially is different, and their method of determination is not yet
Together.Optionally, the axial alarm displacement threshold value of generator 102 can pass through alarm bit corresponding to third displacement sensor 213
Threshold value is moved to be reacted, wherein alarm displacement threshold value corresponding to third displacement sensor 213 can by the model of generator and
Fan operation data are determined, in general, the alarm displacement threshold value of third displacement sensor 213 is 5mm.And generator 102
Radial alarm displacement threshold value can pass through alarm bit corresponding to the first displacement sensor 211 and second displacement sensor 212
Threshold value is moved to be reacted.
Optionally, determine that alarm displacement threshold value corresponding to the first displacement sensor 211 and second displacement sensor 212 can
To pass through: user equipment 232 receives the current time that Master Control Room server 231 is obtained from fan operation data server 11
Fan operation data and history fan operation data, by the fan operation data at current time and history fan operation data into
Row compares, and judges the fan operation data at current time are in which section of history fan operation data, determines accordingly
The corresponding alarm displacement threshold value of the fan operation data at current time.Later, user equipment 232 is displaced according to the shaking received
And whether alarm displacement threshold decision generator is in Shaft alignment state.
Optionally, alarm displacement threshold value corresponding to the first displacement sensor 211 and second displacement sensor 212 is determined also
It can pass through: extraneous wind speed when current blower works be got according to fan operation data server 11, from fan operation
Alarm displacement corresponding to historical wind speed section corresponding to extraneous wind speed when obtaining blower work in data server 11
Threshold value, Master Control Room server 231 obtain corresponding alarm displacement threshold value from fan operation data server 11, and by the alarm
Displacement threshold value is sent to user equipment 232, and user equipment 232 is displaced according to the shaking received and alarm displacement threshold decision is sent out
Whether motor is in Shaft alignment state.In general, the alarm displacement threshold value of the first displacement sensor 211 and second displacement sensor 212
For 1.16mm.
Generator centering provided in this embodiment monitors system, provides current time by fan operation data server
Fan operation data and history fan operation data determine the alarm displacement threshold value of generator axially and radially, then will shake
Displacement is compared to judge whether generator is in Shaft alignment state with alarm displacement threshold value, due to the determination for displacement threshold value of alarming
Mode is more accurate so that judge generator whether centering accuracy it is higher.
Optionally, above-mentioned user equipment 232 includes display screen, and display screen shows user equipment 232 according to radial vertical rolling
The axle center that dynamic displacement and radial level shake the determining generator 102 of displacement is displaced accumulation graph.
As described above, to shake displacement be that generator 102 teetertotters the shaking position of generation for generator 102 radial vertical
It moves, i.e., the vertical shaking for shaking generation that generator 102 is carried out perpendicular to the direction of the armature spindle of generator 102 is displaced, and is sent out
It is the shaking displacement that generator 102 sways forwards and backwards generation that the radial level of motor 102, which shakes displacement, i.e., generator 102 perpendicular to
The shaking displacement that the horizontal jitter that the direction of the armature spindle of generator 102 carries out generates.As shown in Fig. 6 a, 6b, by generator 102
Radial level shake displacement and be used as horizontal axis, radial vertical by generator 102 shakes displacement and is used as the longitudinal axis, constitutes generator
102 axle center is displaced accumulation graph.The axle center displacement accumulation graph constituted is shown on a display screen, is carried out convenient for staff
Real time inspection.
It should be noted that the setting acquired respectively in Fig. 6 a for acquisition device 22 is in generator 102 close to gear-box 103
The corresponding radial direction of the first displacement sensor 211 (being shown in Fig. 6 a with CH1, same in following figures) of one end shake displacement vertically,
And second displacement sensor 212 of the generator 102 close to 103 one end of gear-box is set and (is shown in Fig. 6 a with CH2, Xia Shutu
In it is same) corresponding radial level shakes displacement.Then, Fig. 6 b is that the setting that acquisition device 22 acquires respectively is separate in generator 102
First displacement sensor 211 (being shown in Fig. 6 b with CH3, same in following figures) corresponding radial direction of one end of gear-box 103 is vertical
Displacement is shaken, and second displacement sensor 212 of the generator 102 far from 103 one end of gear-box is set and (is shown in Fig. 6 b with CH4
Out, in following figures together) corresponding radial level shakes displacement.
It is assumed that the transverse and longitudinal coordinate in the axle center displacement accumulation graph of generator 102 is (0,0) when generator static state centering, when
When generator 102 is inclined upwards, the abscissa in the axle center displacement accumulation graph of generator 102 is positive value, when generator 102 is inclined forward
When, it is positive value that the axle center of generator 102, which is displaced the ordinate in accumulation graph,.By the distribution of the coordinate points in the accumulation graph of the axle center Fig. 6 a
As can be seen that coordinate points are mainly distributed on abscissa and when ordinate are positive value, that is, illustrate in time period generator 102 to
Above, it shakes forward.
The distribution of coordinate points is substantially presented " oval it can be seen from the distribution of coordinate points in the accumulation graph of the axle center Fig. 6 b
Shape ", in Shaft alignment state when illustrating 102 dynamic of generator at this time, but what the distribution of the coordinate points in Fig. 6 b was constituted
The origin of " ellipse " is not the center of circle, then illustrates that generator 102 is alignment when deviateing static in static state, in generator
It carries out needing to consider compensation shift value and Centering compensation direction when centering adjustment when static, which is Fig. 6 b axis
Abscissa value corresponding to the center of circle of " ellipse " that is presented in accumulation graph and ordinate value, above-mentioned Centering compensation direction are as follows:
Abscissa value corresponding to the center of circle of above-mentioned " ellipse " and ordinate value are negated, direction corresponding to negated value is
The direction of generator adjustment when static state adjustment, that is, the Centering compensation direction of generator.For example, the elliptical center of circle is sat in Fig. 6 b
(177.5,75) are designated as, which is positive value, accordingly, it is determined that when Centering compensation direction, by abscissa value and ordinate value
Negate as negative value, when abscissa is negative value, correspondence adjusts downwards generator, when ordinate is negative value, it is corresponding will power generation
Machine adjusts backward, i.e., when the axle center accumulation graph according to above-mentioned Fig. 6 b carries out static adjustment to generator, is in when by static state
The adjustment 177.5 downwards of the generator 102 of Shaft alignment state, and 75 are adjusted backward.
In addition, as fig. 6 c, display screen can be displaced with shaking corresponding to each displacement sensor 21 of real-time display,
Wherein, CH5 is third displacement sensor 213.As shown in fig 6d, display screen can also show history to shake composed by displacement and shake
Dynamic displacement tendency chart, from shake in displacement tendency chart it can be concluded that the generator 102 detected of each displacement sensor 21 not
With the Long-term change trend that the shaking displacement at position increases at any time, to facilitate staff according to shaking displacement with the time
The Long-term change trend of growth finds that generator 102 can timely will carry out generator 102 in non-Shaft alignment state etc. in time
Position adjustment.
Certainly, staff can also only check the Long-term change trend of shaking displacement corresponding to single displacement sensor, such as
Fig. 6 e show the Long-term change trend figure of shaking displacement corresponding to CH1, optionally, if only seen corresponding to single displacement sensor
Shaking displacement Long-term change trend when, the Long-term change trend curve that displacement is shaken corresponding to other displacement sensors is hidden.
In addition, as shown in Figure 6 f, display screen can be also used for showing the overview diagram of all blowers, wherein overview diagram is used for
Check the working condition of different blowers for staff, including blower total quantity, normal shape blower quantity, early warning blower quantity,
Offline blower quantity, the blower of different conditions are indicated with different colours, correspondingly, indicating that the icon of different working condition is different
Color indicates, i.e., when some blower is in certain working condition, the color of the blower also icon with its current corresponding working state
Using same color, the working condition of blowing machine can be differentiated rapidly convenient for staff.It should be noted that in different works
Make on the icon of state while display is in the quantity of the blower of the working condition, and, blower total quantity=normal condition blower
Quantity+early warning blower quantity+offline blower quantity.For example, being indicated in Fig. 6 f: blower total quantity totally 9, normal shape blower quantity
Be 9, that is, the Shaft alignment state of the generator in the blower monitored in error range, then early warning blower quantity and from
Line blower quantity is 0.By showing that overview diagram is convenient for the working condition of the prompt each blower of staff on a display screen, when
When having blower early warning (i.e. the shaking displacement of blower is more than alarm displacement threshold value) or offline (i.e. blower does not work) occur, work people
Member can intuitively see early warning or offline blower position very much, handle in time for maintenance personal, improve staff
Working efficiency, while improving the working efficiency of blower.
Generator centering provided in this embodiment monitors system, by showing that the axle center of generator is displaced heap on a display screen
Product figure, and further include that can show to shake shaking change in displacement trend corresponding to displacement, different displacement sensors in real time
The overview diagram of figure, blower meets the monitoring to generator Shaft alignment state of staff's different demands, and very intuitive, side
Just.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of generator centering monitors system characterized by comprising be arranged in displacement sensor inside fan engine room,
Acquisition device and main control device；Wherein, institute's displacement sensors are electrically connected with the acquisition device, and the acquisition device passes through friendship
It changes planes and is electrically connected with the main control device；
The shaking of the generator that institute's displacement sensors will test is displaced corresponding voltage output to the acquisition device,
Output is to the main control device after the voltage is converted to the shaking displacement by the acquisition device, so that the main control device
Determine whether the generator is currently in Shaft alignment state according to the size for shaking displacement and preset alarm displacement threshold value,
And warning message is exported when the generator is in non-Shaft alignment state.
2. system according to claim 1, which is characterized in that the main control device includes: that the storage acquisition device is defeated
Master Control Room server, the user equipment of shaking displacement out；
The acquisition device is electrically connected by the interchanger with the Master Control Room server, the Master Control Room server with it is described
User equipment electrical connection.
3. system according to claim 2, which is characterized in that the multiple the system comprises multiple displacement sensors
Displacement sensor includes: that the first displacement sensor that the bottom of the generator is arranged in a non-contact manner and setting are being leaned on
The second displacement sensor of first predetermined position of the side wall of the nearly generator；
Radial vertical shake that first displacement sensor detects the generator is displaced corresponding voltage, the second displacement
The radial level that sensor detects the generator, which shakes, is displaced corresponding voltage.
4. system according to claim 3, which is characterized in that first displacement sensor is two, is separately positioned on
The generator is along the both ends of axial horizontal direction；
The second displacement sensor is two, is separately positioned on the generator along the both ends of axial horizontal direction.
5. system according to claim 3, which is characterized in that the multiple displacement sensor further include: third displacement passes
Sensor, the third displacement sensor are positioned close to the second predetermined position of the armature spindle of the generator；
The axial horizontal jitter that the third displacement sensor detects the generator is displaced corresponding voltage.
6. system according to claim 3, which is characterized in that the multiple displacement sensor further include: the 4th displacement passes
Sensor, the 4th displacement sensor are positioned close to the third predetermined position of the gear-box shaft of the blower；
The hair that the acquisition device will be determined according to the temperature drift voltage of the voltage and the 4th displacement sensor detection
The practical shaking displacement output of motor in different directions is to the Master Control Room server, so that the user equipment is according to
Whether generator determines the generator currently in centering shape in the practical shaking displacement and alarm displacement threshold value of different directions
State.
7. according to the described in any item systems of claim 2-6, which is characterized in that the system also includes: fan operation data
Server, the fan operation data server are electrically connected with the Master Control Room server；
The Master Control Room server is by the fan operation data at the current time obtained from the fan operation data server
And history fan operation data are exported to the user equipment, so that the user equipment determines alarm displacement threshold value；It is described
Extraneous wind speed, the generator rotor shaft when fan operation data include: the power of the generator, blower work
At least one of revolving speed.
8. system according to claim 3, which is characterized in that the user equipment includes display screen, the display screen display
Show that the user equipment shakes displacement according to the radial direction vertically and the radial level shakes the determining generator of displacement
Axle center be displaced accumulation graph.
9. system according to claim 2, which is characterized in that the acquisition device includes: by ICP/IP protocol and institute
State the data acquisition and monitoring station that Master Control Room server is communicated.
10. system according to claim 9, which is characterized in that the data acquisition and monitoring station by the interchanger and
Optical fiber ring network is electrically connected with the Master Control Room server.
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| CN201820438044.6U CN208203480U (en) | 2018-03-29 | 2018-03-29 | Generator centering monitors system |
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| CN201820438044.6U CN208203480U (en) | 2018-03-29 | 2018-03-29 | Generator centering monitors system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108240305A (en) * | 2018-03-29 | 2018-07-03 | 珠海市鑫世达测控技术有限公司 | Generator centering monitors system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240305A (en) * | 2018-03-29 | 2018-07-03 | 珠海市鑫世达测控技术有限公司 | Generator centering monitors system and method |
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