CN207424259U - Digitize three direction displacement measuring device - Google Patents
Digitize three direction displacement measuring device Download PDFInfo
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- CN207424259U CN207424259U CN201721482985.1U CN201721482985U CN207424259U CN 207424259 U CN207424259 U CN 207424259U CN 201721482985 U CN201721482985 U CN 201721482985U CN 207424259 U CN207424259 U CN 207424259U
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- Prior art keywords
- dimensional
- laser
- digitlization
- measuring device
- direction displacement
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Abstract
The utility model provides a kind of digitlization three direction displacement measuring device for heat power equipment expansion monitoring, the three-dimensional reflector being made of orthogonal three tablets being fixed on monitored object, the three-dimensional laser range sensor, the soft dust cover that are fixed on opposing stationary point form, digitlization, the precision of detection process are realized, is easy to control error during in-site installation.Detection process is substantially from the influence of environmental factor variation, high certainty of measurement and data stabilization is reliable, longtime running inferred-zero drift problem.
Description
Technical field
The utility model is related to three direction displacement measurement technologies, are specifically a kind of number available for heat power equipment dilatometry
Change three direction displacement measuring device.
Background technology
Since swell-shrinking deformation phenomenon can occur for the variation of temperature, pressure, the concrete numerical value of deformation can reflect heat power equipment
Whether equipment there is exception, it is therefore desirable to which the concrete numerical value of expansion is monitored.However, the operations staff in power station is main at present
It is monitored using inspection manual measurement and by the way of recording, it is not only time-consuming and laborious, and can not accomplish to monitor in time, more inconvenient record
Show the expansion variation tendency of one section of long period.
Patent application 201521101932.1 discloses what is be made of pedestal, guide rail, center slide, encoder and rack etc.
Three-dimensional localization mechanism, monitors automatically for boiler expansion；201510338893 .5 of patent application discloses a kind of with online
The expansion indicator of monitoring function, including level tray, is fixedly mounted with four litter on tray edge, and X/Y is fixedly mounted with for one jiao in pallet
Direction displacement sensor is set with X/Y axis expansion indicating arm, Z-direction litter top installation Z-direction displacement sensor on litter；
201621057765 .X of patent application discloses a kind of power station heat power equipment expansion indicator, including：Motor, rod piece and position
It moves and perceives panel；The motor is fixedly connected with the outer wall of the heat power equipment, for the rod piece to be driven to do axially extending fortune
It is dynamic；And the displacement perception panel is configured to the rod piece and the displacement can be touched in axially extending motion process
It perceives panel and the displacement perceives the touch position that panel is used to perceive the rod piece.This three patented technologies all use
There is the monitoring element of mechanical movement, easily occur moving component bite problem in actual field working environment.
201620448254 .4 of patent application discloses a kind of three direction displacement sensor and is fixed on monitored component
Trihedral composition monitoring and data conversion system, three direction displacement sensor therein use inductive displacement transducer, nothing
Mechanical transmission component.At the scene in installation process, there is also difficulties for the calibration that is accurately positioned of inductance sensor.Due to using tradition
The detection technique of analog quantity form under the conditions of long time continuous working, field environmental condition are changeable etc., is inevitably present
The problem of zero drift, poor anti jamming capability.
The content of the invention
The purpose of this utility model is to provide a kind of digitlization three direction displacement for heat power equipment expansion monitoring and measures dress
It puts.
To achieve these goals, the utility model provides a kind of digitlization three-dimensional position for heat power equipment expansion monitoring
Measuring system, the three-dimensional reflector 2 being made of orthogonal three tablets being fixed on monitored object are fixed on phase
The three-dimensional Laser Measuring formed to three orthogonal digitalized laser distance measuring sensors 4 on rest point and three-dimensional fixator 3
It is formed away from sensor, soft dust cover.
The three-dimensional laser range sensor is by three digitlization laser range sensors 4 and a three-dimensional fixator
One entirety of 3 compositions, should generally pass through calibration laser direction could practical application.The survey of the three-dimensional laser range sensor
Three reflectings surface of amount light beam and the three-dimensional reflector 2 are mutually perpendicular to, and illuminated laser spot is located at the appropriate position of Reflector Panel
It puts, can be worked normally with all stage laser range sensors for ensureing expansion process.If monitored object vibration very little,
Three-dimensional laser range sensor can also be fixed on monitored object, three-dimensional reflector 2 is fixed on rest point.
Soft dust cover is made of the good plastic film of endurance quality or closely knit cloth, ensures three dust-proof while
Relative motion between laser range sensor and three-dimensional reflector 2 is unaffected.
Preferably, the laser range sensor 4 uses the visible laser of human eye, and such as common is red laser, just
Adjustment verifies the accuracy of its three-dimensional and the degree of being mutually perpendicular to three-dimensional reflector when installing at the scene.
Preferably, when fixing as three mutually orthogonal directions, reply swashs three laser range sensors 4
Light project direction calibrated, ensure that laser direction is mutually perpendicular to, and make laser project direction intersect at a point or its reversely
Extended line intersects at a point, this intersection point is referred to herein as laser crossing point.Calibration process is usually completed in factory or laboratory.
Preferably, the reflecting surface of the three-dimensional reflector 2 is with the grid scale as graph paper, to install
The relative position of field calibration three-dimensional laser beam detecting sensor and three-dimensional reflector reduces installation error.
Preferentially, the level board of the specular reflector may be provided at top rather than bottom shown in FIG. 1, correspondingly
The laser of adjustment vertical direction projects upwards, can simplify the processing and manufacturing difficulty of soft dust-proof cover.
The utility model proposes digitlization three direction displacement measuring device, realize detection process digitlization, precision,
It is easy to control error during in-site installation.Laser range sensor is totally digitilized measurement technology, and advantage is strong antijamming capability,
Detection process is substantially from the influence of environmental factor variation, and high certainty of measurement and data stabilization is reliable, longtime running inferred-zero floats
Shifting problem.
The measurement result of three direction displacement measuring device can be transmitted to industrial control computer by data transmission unit.Data
Transmission unit refers to data transmission network, is usually wired or wireless network, including data receiver and transmitter, cable and network
Exchanger etc., effect are that the result of the measurement of multiple measuring points is transmitted to data storage and automatically analyzes diagnosis unit.
Data storage is typically industrial control computer with automatically analyzing diagnosis unit, and industrial control computer generally accesses
To the control network system of factory.Industrial control computer is by that data storage and analysis, can detect that expansion is abnormal
When send alarm in time, operation operating personnel is reminded to be handled in time；By the comparative analysis to historical data, can observe
The trend of variation is expanded, finds potential abnormal problem as early as possible.
The utility model is convenient for carrying out the principle of control errors when mounted, in three-dimensional reflector 2, three-dimensional laser distance
Sensor is all by the case of previously described calibration, if laser is mutually perpendicular to and has laser crossing point, it is anti-to be radiated at three-dimensional
(a, b), (b, c), (a, c) of the mesh coordinate of the luminous point in three faces of emitter respectively as shown in Figure 1, that is, coordinate
Numerical value is equal two-by-two, then illustrates that the angle of laser irradiation is vertical with the reflecting surface of three-dimensional reflector.So can easily it adjust
The relative position of whole good three-dimensional reflector and three-dimensional distance-measuring device, is easy to control field erected error.
Description of the drawings
Attached drawing 1 is the major part for the digitlization three direction displacement measuring device that the utility model is implemented.In Fig. 1, a, b, c
Respectively laser crossing point to three reflectings surface distance,（A, b）(b, c)（A, c）It is illuminated laser spot in the plane of reflection
Coordinate.
Accompanying drawing number description of symbols：
The mounting part of 1 three-dimensional reflector point
2 carry the three-dimensional reflector of grid scale
3 three-dimensional fixators
4 laser range sensors
The mounting part of 5 laser range sensors point
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.
Fig. 1 shows the major part of digitlization three direction displacement measuring device provided by the utility model, and soft dust-proof cover exists
It is not drawn into figure.
Three-dimensional reflector 2 therein is fixed together by three pieces of square Reflector Panels with grid scale, by three-dimensional
The mounting part of reflector 2 point 1 is fixed on the measured object for needing to detect expansion displacement, and traditionally three-dimensional reflector 2 is flat
Face is usually parallel with the direction all around of workshop, and other direction is vertical direction.It needs to detect expansion displacement on heat power equipment
Measured object usually have cold wall header, down-comer, high temperature superheater entrance header, high temperature superheater outlet header, shielded entrance
Header shielded outlet header, low temperature superheater entrance header, low temperature superheater outlet header, attemperator header, economizer entrance
The positions such as header, economizer entrance header.Three digitlization laser range sensors 4 are fixed on laser range sensor three-dimensional and consolidate
Determine on device 3, by calibration the direction of measurement laser is made to be mutually perpendicular on three directions in space, and three laser measuring apparatus are penetrated
The laser gone out intersects at a point or its reverse extending line intersects at a point.Then play connection in laser range sensor installation section 5
Fixed effect, its one end connection three-dimensional fixator 3, the other end is firmly attached the rest point of expansion measuring point.Rest point is usual
For firm factory building foundation or pillar, hardened ground.The power cord of laser range finder and data cable, the net of data acquisition and transmission
Network communication module is usually also secured at laser range sensor installation section 5 above or near it.
During in-site installation, laser point can be adjusted easily in the grid position of three-dimensional reflector 2 when observing laser measurement
The position of whole laser range sensor and angle, the light for making laser range sensor is vertical with the reflecting surface of three-dimensional reflector 2,
Eliminate installation error.
The effect of soft dust-proof cover is to prevent dust from being deposited in the reflecting surface of laser range sensor 4, three-dimensional reflector 2, is done
Disturb measurement work.Soft dust-proof cover is made of skeleton and soft cloth or soft plastic cloth, while dust seal, does not block Laser interferometers
Measurement, and the relative movement of three-dimensional reflector 2 is not influenced.For the ease of the fabrication and installation of soft dust-proof cover, three-dimensional can be reflected
The reflecting plate of the horizontal direction of device is arranged on top, and downwards, the digitalized laser distance measuring sensor 4 of vertical direction is upward for reflection
Transmitting laser measures.
To ensure 4 reliably working of digitalized laser distance measuring sensor, the camera lens of digitalized laser distance measuring sensor 4 can add
Fill compressed air purging dust-extraction unit.
The digital monitoring equipment of complete heat power equipment expansion further includes digital measuring data transmission unit, data storage
Diagnosis unit is deposited and automatically analyzed, measurement result technology is made to be passed to industrial control network system, is stored, analyzed, diagnosed, from
And it realizes and finds expansion issues and alert process in time.
Case is embodied
The detailed protocol implemented is described in detail below in conjunction with specific embodiment.
Since the plane of three-dimensional reflector needs high flatness to ensure the accuracy of measurement result, using glass steel mesh
Lattice reinforcement material makes, to ensure that reflecting surface is smooth and is unlikely to deform.Grid scale is sharp in order to correct in reflecting surface printing
The installation site of ligh-ranging sensor.The size of three-dimensional reflector is selected according to the size of expansion displacement amount, is usually the length of side
For the square of 20cm ~ 60cm.
Certain type figure laser range sensor with RS485 signal outputs is selected, optical maser wavelength 650nm is surveyed
Accuracy of measurement：± 1mm, range 0.05-2m, resolution ratio：0.1mm, supply voltage：5V, power consumption：< 1W.Degree of protection：
IP65, service life：≥ 50000h.
Three digitlization laser range sensors need to pass through calibration, make three after preliminary be fixed on three-dimensional fixator
The laser that digitalized laser distance measuring sensor projects is mutually perpendicular to, and is intersected at a point or its reverse extending line intersects at a point.
During in-site installation, the digitalized laser distance measuring sensor of multiple expansion measuring points is powered with a regulated power supply, and about ten
The RS485 data line groups of a measuring point are linked into industrial control computer into a RS485 communication network.Every Industry Control calculates
Machine can be connected with multiple RS485 communication networks, realize the expansion monitoring to one or more large-scale heat power equipment.Industry Control
Computer and the information network system of factory connect, and measurement result and warning message can be uploaded.
Measurement data can be stored in industrial control computer, data analysis, zero point, alarming value can be set,
Play the role of monitoring in real time and alarm.
Three direction displacement measuring device in the implementation case can realize heat power equipment swell increment in high precision, for a long time
Continuous detection, and data are uploaded and realize monitoring and the alert process of full automation.
Claims (4)
1. a kind of digitlization three direction displacement measuring device, it is characterized in that the digitlization three direction displacement measuring device is by being fixed on
The three-dimensional reflector of orthogonal three reflectings surface composition on monitored object, the three-dimensional being fixed on opposing stationary point swash
Ligh-ranging sensor, soft dust cover composition, the measurement laser direction of the laser range sensor and the three-dimensional reflector
Three reflectings surface be mutually perpendicular to.
2. digitlization three direction displacement measuring device as described in claim 1, it is characterized in that three of the three-dimensional reflector
Reflecting surface has grid scale.
3. digitlization three direction displacement measuring device as described in claim 1, it is characterized in that the three-dimensional laser ranging sensing
Device is measured using the laser of visible light wave range.
4. digitlization three direction displacement measuring device as claimed in claim 3, it is characterized in that the three-dimensional laser ranging sensing
The measurement laser that device is sent is mutually perpendicular in direction in space, and is intersected at a point or its reverse extending line intersects at a point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482985.1U CN207424259U (en) | 2017-11-09 | 2017-11-09 | Digitize three direction displacement measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482985.1U CN207424259U (en) | 2017-11-09 | 2017-11-09 | Digitize three direction displacement measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424259U true CN207424259U (en) | 2018-05-29 |
Family
ID=62308231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721482985.1U Expired - Fee Related CN207424259U (en) | 2017-11-09 | 2017-11-09 | Digitize three direction displacement measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207424259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341506A (en) * | 2018-11-16 | 2019-02-15 | 武汉理工大学 | Three direction displacement measuring device |
-
2017
- 2017-11-09 CN CN201721482985.1U patent/CN207424259U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341506A (en) * | 2018-11-16 | 2019-02-15 | 武汉理工大学 | Three direction displacement measuring device |
| CN109341506B (en) * | 2018-11-16 | 2020-01-14 | 武汉理工大学 | Three-dimensional displacement measuring device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20181109 |