CN209166642U - Device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration - Google Patents
Device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration Download PDFInfo
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- CN209166642U CN209166642U CN201820898424.8U CN201820898424U CN209166642U CN 209166642 U CN209166642 U CN 209166642U CN 201820898424 U CN201820898424 U CN 201820898424U CN 209166642 U CN209166642 U CN 209166642U
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- line measurement
- measuring bar
- support frame
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Abstract
The utility model discloses a kind of devices for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, including the magnetic stand being arranged on turbine generator set bearing box, the mechanism for testing for measuring rotor of turbogenerator set diameter of axle absolute vibration is provided with above magnetic stand；The mechanism for testing is slidably arranged on rotor radial by support frame, and the bottom end of support frame is fixed on magnetic stand；The mechanism for testing includes vialog of the equipped vibration measuring bar and apical grafting on the support frame of sliding on vibration measuring bar top.The utility model is shaken using contact method come the axis of on-line measurement rotor of steam turbo generator, and not by the interference of the external environments such as electromagnetism, measurement data is accurate, and the accuracy for axis vibration data measured by verifying on-line vibration monitoring system provides foundation.
Description
Technical field
It is especially a kind of for measuring steam turbine hair the utility model relates to Turbo-generator Set testing techniques of equipment field
The method of motor group vibration-testing.
Background technique
In thermal power plant, the problem of being frequently encountered Abnormal Vibration of Turbine-Generator Set, in order to monitor machine in time
Group abnormal vibrations, it is ensured that unit safety stable operation, all Steam Turbines are assembled with on-line vibration monitoring system.Currently,
The on-line vibration monitoring system that the unit of 300MW or more is equipped with can monitor bearing shell vibration (referred to as " watt vibration ") and monitoring
The rotor diameter of axle vibrates (referred to as " axis vibration "), and the on-line vibration that 300MW and following unit are equipped with monitors system, some only monitorings watt
Vibration, some monitoring portion split axle vibrations and whole bearing shell vibrations.
Vibration-testing is being carried out to Turbo-generator Set and when fault diagnosis, encounter sometimes axis vibration exist it is abnormal but watt
It shakes normal situation, if this occurs, we just need to know the authenticity in spool vibration data, however due to measurement
The sensor of axis vibration is all mounted in bearing housing, and when not shutting down, it can only check the measurement circuit after fore-lying device, no
Sensor can be checked, therefore can not obtained in spool vibration data；And for only monitoring a watt unit for vibration, we go back sometimes
The size for needing to know axis vibration, equally in non-stop-machine situation, scene is that do not have the condition for installing axis vibration sensor additional, because
This can not also obtain the data in spool vibration.
Utility model content
The utility model technical issues that need to address, which are to provide one kind and can accurately measure rotor of turbogenerator set, to exist
The device of spool diameter absolute vibration data, so that the accuracy for axis vibration data measured by verifying on-line vibration monitoring system provides
Foundation.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
For the device of on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, including it is arranged in Turbo-generator Set
Magnetic stand on bearing housing, magnetic stand top are provided with the survey for measuring rotor of turbogenerator set diameter of axle absolute vibration
Test-run a machine structure；The mechanism for testing is slidably arranged on rotor radial by support frame, and the bottom end of support frame is fixed at magnetic force
On gauge stand.
The above-mentioned device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, the mechanism for testing include sliding
Vialog of the dynamic equipped vibration measuring bar and apical grafting on the support frame on vibration measuring bar top.
The above-mentioned device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, support frame as described above include vertical
Vertical beam above magnetic stand is set, and the top sliding of vertical beam is provided with the cross moved on vertical beam along rotor center axis direction
Beam is realized by adjusting knob between crossbeam and vertical beam and adjusts and position；The outer end of the crossbeam is provided with wears in rotor radial
The guide rail for crossing vibration measuring bar, is fastened by bolts between guide rail and crossbeam.
The above-mentioned device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration is arranged on the guide rail
There is the center slideway across vibration measuring bar；The vibration measuring bar includes the shell portion to move up and down in the slideway of center and is arranged in circle
The conical section contacted below column body segment with rotor of turbogenerator set, shell portion and conical section are structure as a whole.
The above-mentioned device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, the vibration measuring bar and guided way
Road is epoxy resin body.
The above-mentioned device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, the magnetic stand includes bottom
The magnetic support that end face and bearing housing attach is provided with the rotary switch that control magnetic support generates magnetic attraction on magnetic support.
Due to using above technical scheme, technological progress acquired by the utility model is as follows.
The utility model is shaken using contact method come the axis of on-line measurement rotor of steam turbo generator, not by external worlds such as electromagnetism
The interference of environment, measurement data is accurate, for verifying on-line vibration monitoring system measured by axis shake data accuracy provide according to
According to；In addition, the utility model can reduce start/stop machine time and expense in the on-line measurement of non-stop-machine situation progress axis vibration,
To guarantee that the positive production operation of Turbo-generator Set provides guarantee.The vibration measuring bar of the utility model uses epoxy resin material system
Make, the diameter of axle will not be caused to damage, ensure that the safety of steam turbine generator on-line checking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of magnetic stand described in the utility model；
Fig. 3 is the structural schematic diagram of guide rail described in the utility model.
Wherein: 1. bearing housings, 2. rotors, 3. magnetic stands, 31. magnetic supports, 32. rotary switches, 4. support frames, 41. is perpendicular
Beam, 43. crossbeams, 42. adjustment knobs, 44. mounting holes, 5. guide rails, 51. center slideways, 6. vibration measuring bars, 7. vialogs.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described in detail.
A kind of device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, structure such as figure to Fig. 3 institute
Show, including magnetic stand 3, support frame 4, guide rail 5 and mechanism for testing, wherein magnetic stand is arranged in Turbo-generator Set
On bearing housing 1, the bottom end of support frame is fixed on magnetic stand, and mechanism for testing is slidably arranged in rotor by support frame 4
Radially.
The structure of magnetic stand 3 is provided on magnetic support as shown in Fig. 2, including the magnetic support 31 that bottom face and bearing housing attach
Rotary switch 32 generates magnetic attraction for controlling magnetic support, can be for being firmly adsorbed on bearing housing when testing.
Mechanism for testing is used to measure the diameter of axle absolute vibration of rotor of turbogenerator set 2, and structure is as shown in Fig. 2, include
Vialog 7 of the equipped vibration measuring bar 6 and apical grafting on the support frame of sliding on vibration measuring bar top.It is sliding that vibration measuring bar 6 is included in center
In road move up and down shell portion and the conical section contacted below shell portion with rotor of turbogenerator set, cylinder are set
Body section and conical section are structure as a whole.Vibration measuring bar is made using epoxy resin in the utility model, the diameter of shell portion
For 30mm, the diameter of conical section bottom end is 5mm, length 800mm.
The structure of support frame 4 is as shown in Fig. 2, include vertical beam 41 and crossbeam 43, vertical beam 41 is vertically set on magnetic stand
Side, crossbeam 43 are slidably arranged in vertical beam top, and the moving direction of crossbeam is rotor center axis direction, is passed through between crossbeam and vertical beam
It adjusts knob 42 and realizes adjusting and positioning.
The outer end of crossbeam is provided with guide rail 5, and 51 He of center slideway of vibration measuring bar is provided through on guide rail 5
The mounting hole 44 assembled with crossbeam, as shown in figure 3, passing through the bolt fastening for passing through mounting hole between guide rail and crossbeam.It leads
It is arranged to the center slideway 51 of track along rotor radial, for passing through vibration measuring bar 6, in the detection process, vibration measuring in rotor radial
Bar can move up and down in the slideway of center with the axial vibration of rotor.In the utility model, guide rail also uses epoxy
Resin production, structure is cuboid, having a size of 60*60*100mm.
When the utility model is used to detect the rotor axial vibration of turbine LP rotors in operational process, first
Mounting hole is passed through using connection bolt, guide rail and crossbeam are fixed together, the rotary switch of magnetic stand is secondly opened,
Magnetic stand is fixed on bearing housing；Measurement guide rail is adjusted to suitable by the adjustment knob for then adjusting magnetic stand
Position, then vibration measuring bar and is allowed to contact with rotor by center slideway on measurement guide rail；Again, by hand-held vibration
Tester is placed on the recess on vibration measuring bar top after being adjusted to measurement vibration displacement mode, holds vibration measurement instrument at this time and shows
Numerical value be exactly rotor diameter of axle absolute vibration numerical value at measurement position.
Claims (6)
1. being used for the device of on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, it is characterised in that: including being arranged in vapour
Magnetic stand (3) on turbine generator group bearing housing (1), magnetic stand (3) top are provided with for measuring Turbo-generator Set
The mechanism for testing of rotor (2) diameter of axle absolute vibration；The mechanism for testing is slidably arranged on rotor radial by support frame (4),
The bottom end of support frame is fixed on magnetic stand.
2. the device according to claim 1 for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, special
Sign is: the mechanism for testing includes survey of the equipped vibration measuring bar (6) and apical grafting on the support frame of sliding on vibration measuring bar top
Vibration Meter (7).
3. the device according to claim 2 for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, special
Sign is: support frame as described above (4) includes the vertical beam (41) being vertically set on above magnetic stand, and the top sliding of vertical beam (41) is set
It is equipped with the crossbeam (43) moved on vertical beam along rotor center axis direction, by adjusting knob (42) realization between crossbeam and vertical beam
It adjusts and positions；The outer end of the crossbeam, which is provided with, passes through the guide rail (5) of vibration measuring bar (6), guide rail in rotor radial
It is fastened by bolts between crossbeam.
4. the device according to claim 3 for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, special
Sign is: the center slideway (51) of vibration measuring bar is provided through on the guide rail (5)；During the vibration measuring bar (6) is included in
The shell portion that moves up and down in heart slideway and the conical section contacted below shell portion with rotor of turbogenerator set is set,
Shell portion and conical section are structure as a whole.
5. the device according to claim 4 for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, special
Sign is: the vibration measuring bar and guide rail are epoxy resin body.
6. the device according to claim 1 for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration, special
Sign is: the magnetic stand (3) includes the magnetic support (31) that bottom face and bearing housing attach, and control magnetic support is provided on magnetic support and is produced
The rotary switch (32) of magnetisation suction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898424.8U CN209166642U (en) | 2018-06-11 | 2018-06-11 | Device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898424.8U CN209166642U (en) | 2018-06-11 | 2018-06-11 | Device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209166642U true CN209166642U (en) | 2019-07-26 |
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ID=67327031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820898424.8U Active CN209166642U (en) | 2018-06-11 | 2018-06-11 | Device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209166642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414080A (en) * | 2018-06-11 | 2018-08-17 | 河北冀研能源科学技术研究院有限公司 | Device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration |
-
2018
- 2018-06-11 CN CN201820898424.8U patent/CN209166642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414080A (en) * | 2018-06-11 | 2018-08-17 | 河北冀研能源科学技术研究院有限公司 | Device for on-line measurement rotor of turbogenerator set diameter of axle absolute vibration |
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Address after: 050000 2nd floor, Yingpan commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: Hebei Jiantou energy science and Technology Research Institute Co.,Ltd. Address before: 050000 2nd floor, Yingpan commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee before: HEBEI JI-YAN ENERGY SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |