CN110132601A - A kind of turbine spindle vibration monitor system - Google Patents
A kind of turbine spindle vibration monitor system Download PDFInfo
- Publication number
- CN110132601A CN110132601A CN201910483335.6A CN201910483335A CN110132601A CN 110132601 A CN110132601 A CN 110132601A CN 201910483335 A CN201910483335 A CN 201910483335A CN 110132601 A CN110132601 A CN 110132601A
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- China
- Prior art keywords
- sensor
- turbine
- monitor system
- turbine spindle
- bearing housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
Abstract
The present invention relates to Turbine Safety operation monitoring technical fields, a kind of turbine spindle vibration monitor system is provided, it include for detecting the first sensor of turbine spindle axial float, the second sensor for detecting turbine spindle radial-play and steam turbine remote monitoring device；First sensor, second sensor are respectively provided at the side of the main shaft in bearing box of steam turbine；Bent penetration pipe is housed on the side wall of bearing housing；First sensor and the signal wire of second sensor are drawn from penetration pipe, and are connected with steam turbine remote monitoring device；The present invention passes through design bent penetration pipe, effective isolating and protecting is carried out to the signal wire of first sensor, second sensor, the lubricating oil sprayed in bearing housing is prevented to flow out along the lead-out wire of each sensor, and thus cause bearing box oil leakage the phenomenon that, it is ensured that the long-range monitoring to turbine spindle play both axially and radially.
Description
Technical field
The present invention relates to Turbine Safety operation monitoring technical field more particularly to a kind of turbine spindle vibration monitoring systems
System.
Background technique
The main shaft operating condition of steam turbine is the key index for reacting Turbine Safety stable operation.Currently, usually in vapour
Multiple sensors are used in the bearing housing of turbine, are referred to parameters such as the revolving speed, bias, shaft vibration and the swollen differences that detect turbine spindle
Mark, after the signal wire of these sensors is drawn in the bearing housing from steam turbine, by being connected with remote supervision system, by remote
Journey prison examining system reads and stores in real time coherent detection data, and carries out real-time online display, so that staff can be intuitive
Ground observes the safe operation state of steam turbine.
It is equipped with bearing block in the bearing housing of steam turbine, ring flange is equipped in bearing block, the main shaft of steam turbine stretches to
In bearing block, and matched with the ring flange.In order to ensure steam turbine is run steadily in the long term, need continually to spray to bearing housing
Lubricating oil is penetrated, processing is lubricated with the main shaft to steam turbine.
However, in actual operation, the signal wire of above-mentioned various kinds of sensors is directly to be drawn by reserved on bearing housing
String holes is pierced by bearing housing, since the signal wire of various kinds of sensors lacks protection, and arranges at fairlead without sealing accordingly
It applies, this causes each sensor to frequently occur the failure of signal transmission, this is largely effected on supervises steam turbine operation state in real time
The reliability of control, and during the work time, lubricating oil can go out with the signal lead-out wire of each sensor from threading hole overflow, lead
Bearing housing is caused the phenomenon that long-term oil leak occur, there is great security risks.
Summary of the invention
(1) technical problems to be solved
The purpose of the present invention is to solve be used to detect all kinds of of main shaft operating condition in the bearing housing of current steam turbine
The signal wire of sensor lacks protection, to be difficult to the problem of implementing reliably monitoring to steam turbine operation state, provides one thus
Kind turbine spindle vibration monitor system.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides a kind of turbine spindle vibration monitor systems, including are used for
The first sensor of detection turbine spindle axial float, second sensor and vapour for detecting turbine spindle radial-play
Turbine remote monitoring device；
The first sensor and the second sensor are respectively provided at the side of the main shaft in bearing box of steam turbine；
The side wall of the bearing housing is equipped with aperture, and bent penetration pipe is housed in the aperture；
The first sensor and the signal wire of the second sensor are drawn from the penetration pipe, and with the steamer
Machine remote monitoring device is connected.
Preferably, heretofore described penetration pipe includes straightway and bending segment；
The straightway passes through the aperture, and the bending segment stretches in the bearing housing；
The straightway is fastened on the side wall of the bearing housing by thread locking structure.
Preferably, the port on heretofore described straightway far from the bending segment side is filled with sealant.
Preferably, L-shaped structure is arranged in heretofore described straightway and bending segment；The sealant is AB glue.
Preferably, first support is equipped in heretofore described bearing housing, the first support includes crossbeam and carrier；
One end of the crossbeam connects the inner sidewall of the bearing housing, and the other end connects the carrier；It is equipped on the carrier
At least one described first sensor, the first sensor along the main shaft axial direction arrange, the first sensor
Test side and the ring flange being equipped on the main shaft are perpendicular positioned opposite.
Preferably, heretofore described carrier is a circular-arc structure, and the carrier is with the main shaft in coaxially arranged；
At least one mounting hole is offered on the carrier, and the first sensor is installed in the mounting hole.
Preferably, it is equipped at least one second support in heretofore described bearing housing, institute is installed in the second support
Second sensor is stated, the second sensor is arranged along the radial direction of the main shaft, the test side of the second sensor and institute
The side wall for stating main shaft is corresponding.
Preferably, the second sensor phase there are two heretofore described second support is set, in two second supports
In 90 ° of central angle arrangements between mutually.
Preferably, one fore-lying device of heretofore described first sensor configuration corresponding with the second sensor, it is described
First sensor and the second sensor are separately connected the signal input part of the fore-lying device, the signal output of the fore-lying device
End connects the steam turbine remote monitoring device；The fore-lying device to the first sensor or the second sensor for mentioning
It is carried out at power amplification and filtering for working power, and to the signal that the first sensor or the second sensor detect
Reason, wherein the first sensor, the second sensor are all made of eddy current displacement sensor.
Preferably, heretofore described steam turbine remote monitoring device includes TSI controller, industrial personal computer and display；Institute
The signal output end for stating fore-lying device connects the signal input port of the TSI controller, described in the TSI controller communication connection
Industrial personal computer, the industrial computer communication connect the display.
(3) technical effect
Turbine spindle vibration monitor system provided by the invention detects steamer owner by configuring in bearing housing respectively
The first sensor of axis axial float and radial-play, second sensor, and by bent penetration pipe to first sensor, second
The signal wire of sensor carries out effective isolating and protecting, it is ensured that first sensor, second sensor and steam turbine remotely monitor
The stability that signal transmits between device, in order to which related technical personnel remotely monitor the axial float of main shaft and radial-play refers to
Mark；At the same time, the blocking by bent penetration pipe to the lubricating oil sprayed in bearing housing, effectively prevent lubricating oil along
The lead-out wire of each sensor flows out, and the phenomenon that oil leak occurs in the bearing housing thus caused.
Detailed description of the invention
In order to illustrate more clearly of the embodiment of the present invention or technical solution in the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of turbine spindle vibration monitor system shown in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of penetration pipe shown in the embodiment of the present invention.
In figure: 1- first sensor, 2- second sensor, 3- bearing housing, 4- main shaft, 5- penetration pipe, 51- straightway, 52-
Bending segment, 53- external screw thread, 54- locking nut, 6- first support, 61- crossbeam, 62- carrier, 63- mounting hole, 7- second
Frame, 8- ring flange, 9- fore-lying device, 10-TSI controller, 11- industrial personal computer, 12- display, 13- bearing block.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Referring to Fig. 1-2, a kind of turbine spindle vibration monitor system is present embodiments provided, including for detecting steam turbine
The first sensor 1 of main shaft axial float, the second sensor 2 for detecting turbine spindle radial-play and steam turbine are long-range
Monitoring device；
First sensor 1 and second sensor 2 are respectively provided at the side of the main shaft 4 in bearing box of steam turbine 3；In bearing housing
3 side wall is equipped with aperture, and bent penetration pipe 5 is housed in the aperture；
First sensor 1 and the signal wire of second sensor 2 are drawn from penetration pipe 5, and are remotely monitored with steam turbine
Device is connected.
Structure as shown in Figure 1 is it is found that the turbine spindle vibration monitor system in the present embodiment includes first sensor
1, second sensor 2 and steam turbine remote monitoring device, it convenient for related technical personnel remotely monitor main shaft axial float and
Radial-play index；In order to realize that it is preferable that first sensor 1, second sensor 2 are realized with steam turbine remote monitoring device respectively
Signal transmission, devise bent penetration pipe 5 in the present embodiment, the penetration pipe 5 is real to first sensor 1, second sensor 2
It has applied preferable blocking protection, has effectively prevented the lubricating oil sprayed in bearing housing 3 to first sensor 1, second sensor 2
Signal wire impacts；At the same time, bent penetration pipe 5 also effectively prevents lubricating oil along the lead-out wire of each sensor
Flowing, avoids bearing housing and the phenomenon that oil leak occurs.
Further, referring to fig. 2, the present embodiment is by the design of penetration pipe 5 in the group being made of straightway 51 and bending segment 52
Close structure；Wherein, straightway 51 passes through the aperture, and bending segment 52 stretches in bearing housing 3；Straightway 51 passes through screw-threaded coupling
For fastening structure on the side wall of bearing housing 3, the thread locking structure includes the external screw thread being arranged on the side wall of straightway 51
53 and locking nut 54 matched with external screw thread 53, and be fitted on straightway 51 corresponding with the inside and outside side wall of bearing housing 3
Locking nut 54.
It is practical that when installing and using, the side wall for the bearing housing 3 that straightway 51 fastens penetration pipe 5 is being passed through to penetration pipe 5
On, and bending segment 52 implements preferable isolating and protecting to the signal wire of first sensor 1, second sensor 2, when in bearing housing 3
When the lubricating oil of injection, the lubricating oil for avoiding injection causes directly to rush to the signal wire of first sensor 1, second sensor 2
It hits, the lubricating oil for also preventing injection is spilled over to the outside of bearing housing 3 along the aperture.
Further, in order to further prevent bearing housing 3 that oil leakage phenomenon occurs, the present embodiment is on straightway 51 far from curved
The port of 52 side of trisection is filled with sealant, wherein sealant selects AB glue.
Specifically, its straightway 51 and the setting of bending segment 52 are in by the present embodiment when carrying out structure design to penetration pipe 5
L shape structure thus prevents lubrication oil spurts into penetration pipe 5, correspondingly also just to first sensor to the maximum extent
1, the signal wire of second sensor 2 implements preferable protection.
Further, in order to realize detection turbine spindle along axial play, the present embodiment devises in bearing housing 3
First support 6, first support 6 include crossbeam 61 and carrier 62；The inner sidewall of one end connection bearing housing 3 of crossbeam 61, it is another
End connection carrier 62；There are two first sensor 1, axis of two first sensors 1 each along main shaft 4 for installation on carrier 62
To arrangement, the test side of first sensor 1 and the ring flange 8 being equipped on main shaft 4 are perpendicular positioned opposite.Since ring flange 8 is pacified
On main shaft 4, when axial float occurs for main shaft 4, is monitored by first sensor 1 and hung down between its test side and ring flange 8
The variation of straight distance can correspondingly detect main shaft 4 along the axial play situation occurred.
Further, in order to save installation space, and in the installation first sensors 1 more as much as possible of carrier 62, to mention
To main shaft 4 along the detection accuracy of axial float, the design of carrier 62 is a circular-arc structure height by the present embodiment, carrier 62 and master
Axis 4 is in coaxially arranged；At least one mounting hole 63 is offered on carrier 62, wherein there are four mounting hole 63 specifically opens up,
Mountable first sensor 1 in each mounting hole 63.
Further, in order to realize the play of detection turbine spindle radially, the present embodiment is in bearing housing 3 equipped with extremely
A few second support 7, wherein second support 7 is mounted on the bearing block 13 in bearing housing 3, and bearing block 13 is upper and lower symmetrical
Two parts of arrangement correspond to assembled, and above-mentioned ring flange 8 is installed in bearing block 13.
Second sensor 2 is installed in second support 7, second sensor 2 is arranged along the radial direction of main shaft 4, the second sensing
The test side of device 2 is corresponding with the side wall of main shaft 4.Since the side of main shaft 4 is directly radially directed toward in the test side of second sensor 2
Wall, then when radial-play occurs for main shaft, by monitoring distance between the test side of second sensor 2 and the side wall of main shaft 4
Variation, can correspondingly detect the play situation that main shaft 4 is radially occurred.
Specifically, second sensor phase of the present embodiment actual design there are two second support 7, in two second supports 7
It can be in so orthogonal radial orientation real-time monitoring main shaft 4 radially institute along two in 90 ° of central angle arrangements between mutually
The play situation of generation, further improves the precision of detection.
Further, in order to accurately obtain the detection data of first sensor 1 Yu second sensor 2, the present embodiment exists
One fore-lying device 9 of configuration corresponding with second sensor 2 of first sensor 1, wherein it is preposition that Bentley can be used in preposition implement body
Device, selected model 330180-50-00.
First sensor 1 and second sensor 2 are separately connected the signal input part of fore-lying device 9, the signal output of fore-lying device 9
End connection steam turbine remote monitoring device；Fore-lying device 9 is used to provide working power to first sensor 1 or second sensor 2, and
Power amplification and filtering processing are carried out to the signal that first sensor 1 or second sensor 2 detect；In addition, first sensor
1, second sensor 2 is all made of eddy current displacement sensor, and using the production of Lantian of Xi'an perseverance far water electric equipment Co., Ltd
The eddy current displacement sensor of model JZH2-DWQZ.
Further, steam turbine remote monitoring device described in the present embodiment includes TSI controller 10, industrial personal computer 11 and shows
Show device 12, wherein the PLC controller of the selection of TSI controller 10 Bentley model TSI3500；The signal output end of fore-lying device 9
The input end of analog signal mouth of TSI controller 10 is connected, TSI controller 10 passes through RS485 Serial Port Line communication connection industrial personal computer 11,
Industrial personal computer 11 passes through RS485 Serial Port Line communication connection display 12.Related technical personnel can lead in long-range monitoring room as a result,
Cross the main shaft of 12 real-time monitoring steam turbine of display along axis play and radially play the case where, be so long-range monitoring steamer
Machine runs provide reliable foundation with security and stability.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of turbine spindle vibration monitor system, which is characterized in that
Including the first sensor for detecting turbine spindle axial float, for detecting turbine spindle radial-play
Two sensors and steam turbine remote monitoring device；
The first sensor and the second sensor are respectively provided at the side of the main shaft in bearing box of steam turbine；
The side wall of the bearing housing is equipped with aperture, and bent penetration pipe is housed in the aperture；
The first sensor and the signal wire of the second sensor are drawn from the penetration pipe.
2. turbine spindle vibration monitor system according to claim 1, which is characterized in that the penetration pipe includes straight line
Section and bending segment；
The straightway passes through the aperture, and the bending segment stretches in the bearing housing；
The straightway is fastened on the side wall of the bearing housing by thread locking structure.
3. turbine spindle vibration monitor system according to claim 2, which is characterized in that far from institute on the straightway
The port of bending segment side is stated filled with sealant.
4. turbine spindle vibration monitor system according to claim 3, which is characterized in that the straightway and bending segment
L-shaped structure is set.
5. turbine spindle vibration monitor system according to claim 1, which is characterized in that be equipped with the in the bearing housing
One bracket, the first support include crossbeam and carrier；One end of the crossbeam connects the inner sidewall of the bearing housing, another
End connects the carrier；At least one described first sensor is installed on the carrier, the first sensor along
The axial arrangement of the main shaft, the test side of the first sensor and the perpendicular opposite cloth of the ring flange being equipped on the main shaft
It sets.
6. turbine spindle vibration monitor system according to claim 5, which is characterized in that the carrier is arc-shaped
Structure, the carrier is with the main shaft in coaxially arranged；At least one mounting hole, the installation are offered on the carrier
The first sensor is installed in hole.
7. turbine spindle vibration monitor system according to claim 1, which is characterized in that be equipped with extremely in the bearing housing
Lack a second support, the second sensor is installed in the second support, the second sensor is along the main shaft
Radial arrangement, the test side of the second sensor are corresponding with the side wall of the main shaft.
8. turbine spindle vibration monitor system according to claim 7, which is characterized in that the second support is equipped with two
A, the second sensor in two second supports is in 90 ° of central angle arrangements each other.
9. turbine spindle vibration monitor system described in any one of -8 according to claim 1, which is characterized in that described
One sensor, one fore-lying device of configuration corresponding with the second sensor, the first sensor and the second sensor are distinguished
The signal input part of the fore-lying device is connected, the signal output end of the fore-lying device connects the steam turbine remote monitoring device；
The fore-lying device is used to provide working power to the first sensor or the second sensor, and to the first sensor
Or the signal that detects of the second sensor carries out power amplification and filtering processing, wherein the first sensor, described the
Two sensors are all made of eddy current displacement sensor.
10. turbine spindle vibration monitor system according to claim 9, which is characterized in that the steam turbine is remotely supervised
Surveying device includes TSI controller, industrial personal computer and display；The signal output end of the fore-lying device connects the TSI controller
Signal input port, the TSI controller communication connect the industrial personal computer, and the industrial computer communication connects the display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483335.6A CN110132601A (en) | 2019-06-04 | 2019-06-04 | A kind of turbine spindle vibration monitor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483335.6A CN110132601A (en) | 2019-06-04 | 2019-06-04 | A kind of turbine spindle vibration monitor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110132601A true CN110132601A (en) | 2019-08-16 |
Family
ID=67580150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910483335.6A Pending CN110132601A (en) | 2019-06-04 | 2019-06-04 | A kind of turbine spindle vibration monitor system |
Country Status (1)
| Country | Link |
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| CN (1) | CN110132601A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120015A (en) * | 2019-12-27 | 2020-05-08 | 浙江浙能技术研究院有限公司 | Real-time monitoring system and monitoring method for eccentric swing of 50MW steam turbine cylinder body |
| CN113640005A (en) * | 2021-08-18 | 2021-11-12 | 济宁华源热电有限公司 | Steam turbine vibration monitoring system and monitoring method thereof |
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|---|---|---|---|---|
| CN1039482A (en) * | 1988-07-11 | 1990-02-07 | 西屋电气公司 | The detection system of turbine blade vibration |
| EP1533479A2 (en) * | 2003-11-24 | 2005-05-25 | General Electric Company | Method and apparatus for detecting rub in a turbomachine |
| CN2795491Y (en) * | 2005-05-18 | 2006-07-12 | 山东铝业股份有限公司 | On-line monitor of screw compressor unit |
| WO2008012153A1 (en) * | 2006-07-25 | 2008-01-31 | Siemens Aktiengesellschaft | Method for testing rotors |
| CN204459486U (en) * | 2015-01-19 | 2015-07-08 | 大唐耒阳发电厂 | The Matheson and Dresser joint of thermal technology's perforation on bearing housing |
| CN205135730U (en) * | 2015-12-02 | 2016-04-06 | 广东大唐国际潮州发电有限责任公司 | Steam turbine seepage anti -overflow goes out device |
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2019
- 2019-06-04 CN CN201910483335.6A patent/CN110132601A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039482A (en) * | 1988-07-11 | 1990-02-07 | 西屋电气公司 | The detection system of turbine blade vibration |
| EP1533479A2 (en) * | 2003-11-24 | 2005-05-25 | General Electric Company | Method and apparatus for detecting rub in a turbomachine |
| CN2795491Y (en) * | 2005-05-18 | 2006-07-12 | 山东铝业股份有限公司 | On-line monitor of screw compressor unit |
| WO2008012153A1 (en) * | 2006-07-25 | 2008-01-31 | Siemens Aktiengesellschaft | Method for testing rotors |
| CN204459486U (en) * | 2015-01-19 | 2015-07-08 | 大唐耒阳发电厂 | The Matheson and Dresser joint of thermal technology's perforation on bearing housing |
| CN205135730U (en) * | 2015-12-02 | 2016-04-06 | 广东大唐国际潮州发电有限责任公司 | Steam turbine seepage anti -overflow goes out device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120015A (en) * | 2019-12-27 | 2020-05-08 | 浙江浙能技术研究院有限公司 | Real-time monitoring system and monitoring method for eccentric swing of 50MW steam turbine cylinder body |
| CN111120015B (en) * | 2019-12-27 | 2022-04-29 | 浙江浙能技术研究院有限公司 | Real-time monitoring system and monitoring method for eccentric swing of 50MW steam turbine cylinder body |
| CN113640005A (en) * | 2021-08-18 | 2021-11-12 | 济宁华源热电有限公司 | Steam turbine vibration monitoring system and monitoring method thereof |
| CN113640005B (en) * | 2021-08-18 | 2024-04-02 | 济宁华源热电有限公司 | Steam turbine vibration monitoring system and monitoring method thereof |
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Application publication date: 20190816 |