CN206235291U - A kind of steam turbine low-lying area nest center measuring device - Google Patents
A kind of steam turbine low-lying area nest center measuring device Download PDFInfo
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- CN206235291U CN206235291U CN201621247133.XU CN201621247133U CN206235291U CN 206235291 U CN206235291 U CN 206235291U CN 201621247133 U CN201621247133 U CN 201621247133U CN 206235291 U CN206235291 U CN 206235291U
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- steam turbine
- lying area
- measuring device
- acquisition unit
- data acquisition
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Control Of Turbines (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a kind of steam turbine low-lying area nest center measuring device, including dummy shaft, and support coaxial sleeve is located at dummy shaft outside, telescoping tube one end is fixed on support, the telescoping tube other end is provided with position sensor, position sensor connection data acquisition unit, data acquisition unit connection central processing unit.When using, disk moves dummy shaft to different angles, position sensor real-time data collection is simultaneously sent to central processing unit by data acquisition unit, central processing unit receives gathered data, measured value according to each angle under same state calculates dividing plate low-lying area nest central value, and the measured value according to same angle under different conditions calculates hollow nest deflection.The device that the utility model is provided overcomes the deficiencies in the prior art, can be in the complete hollow nest data of reality cylinder measurement, and measurement result is accurate, the repair quality and overhaul efficiency of unit is improve, while alleviating the labour intensity of maintainer.
Description
Technical field
The utility model is related to a kind of device that can measure steam turbine Wa Wo centers and block distortion, it is adaptable to which steam turbine is examined
Engineering is repaiied, belongs to repair apparatus technical field.
Background technology
In steam turbine maintenance engineering, the nest alignment of partition board of steam turbine low-lying area, is an important procedure.
At present, when major overhaul looks for steam turbine Wa Wo centers, the measurement at partition board of steam turbine Wa Wo centers, generally using dummy shaft
Coordinate traditional mechanical dial gauge, because dial gauge installs not firm incorrect with installation site, dial gauge bar can usually occur
Loosen, reading is produced error.
Further, since cylinder dividing plate deforms, can also there is error between measurement data and real low-lying area nest data.By space
Limitation, personnel cannot be introduced into measurement under full cylinder state, so being typically only capable to half cylinder data come instead of full cylinder data, full reality cylinder
The hollow nest data of measurement are extremely difficult.
Utility model content
The technical problems to be solved in the utility model is to provide one kind can be in the complete hollow nest data of reality cylinder measurement and measurement result
Accurate device.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of steam turbine Wa Wo centers measurement
Device, it is characterised in that：Including dummy shaft, support coaxial sleeve is fixed on support located at dummy shaft outside, telescoping tube one end, telescoping tube
The other end is provided with position sensor, position sensor connection data acquisition unit, data acquisition unit connection central processing unit.
Preferably, the dummy shaft is concentric with turbine rotor on turbine bearing pad.
Preferably, the position sensor connects data acquisition unit by data wire.
Preferably, the data acquisition unit connects central processing unit by data wire.
Preferably, the position sensor is eddy current displacement sensor.
When using, the dynamic dummy shaft of disk is transmitted to different angles, position sensor real-time data collection and by data acquisition unit
To central processing unit, central processing unit receives gathered data, and the measured value according to each angle under same state calculates dividing plate
Hollow nest central value, the measured value according to same angle under different conditions calculates hollow nest deflection.
The device that the utility model is provided overcomes the deficiencies in the prior art, in the complete hollow nest data of reality cylinder measurement, and can survey
Amount result is accurate, the repair quality and overhaul efficiency of unit is improve, while alleviating the labour intensity of maintainer.
Brief description of the drawings
The steam turbine low-lying area nest center measuring device schematic diagram that Fig. 1 is provided for the present embodiment.
Specific embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation scope of the present utility model.In addition, it is to be understood that reading the content of the utility model instruction
Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen
Please appended claims limited range.
The steam turbine low-lying area nest center measuring device schematic diagram that Fig. 1 is provided for the present embodiment, described steam turbine Wa Wo centers
Measurement apparatus are made up of dummy shaft 1, support 2, telescoping tube 3, position sensor 4, data acquisition unit, central processing unit etc..
Dummy shaft 1 is positioned on turbine bearing pad, concentric with turbine rotor.The coaxial sleeve of support 2 stretches in the outside of dummy shaft 1
The one end of pipe 3 is fixed on support 2, and the other end of telescoping tube 3 is equipped with position sensor 4, and position sensor 4 connects number by data wire
According to collector, data acquisition unit connects central processing unit by data wire.
Position sensor uses eddy current displacement sensor.
Telescoping tube 3 can adjustment length as needed, adapt to the steam turbine of different-diameter.
Built-in ten eddy current displacement sensors of data acquisition unit, combine embedded system platform, ten channel sensors
Probe is quickly accessed, independent operating, is not interfere with each other.20 tunnels analogies are exported, and have all filtered output.Possess USB, RS485 number
Word interface is exported, convenient connection computer, checks data.Integral type is powered, and only need to access 220VAC civil powers, you can use.It is provided with
Digital output switch, can reduce influence of the digital circuit to simulation output.
The specification of sensor probe is as follows：Special-the 10-02 of model ZA-211103-00-；Diameter of phi 11；Range 4mm；Frequently
Ring DC-10KHz；Non-threaded length 0mm；5 meters of cable length；Fore-lying device model ZA-211101-90-06-02-1, power supply ± 15-
±18Vdc；Output ± 10V；- 30-100 DEG C of temperature, 9 meters of systems.
Host work power supply is alternating current 220V AC ± 10%, 50Hz, power consumption≤20W.Two groups of power switchs and indicator lamp,
Rear portion is general supply, and front portion is digital power.Built-in 10 fore-lying devices, unified power supply.10 probe high frequency fast interfaces of input；
Output passes through USB interface, RS485 interfaces.Serial ports form：9600bps-8bit-1stop none.Working environment：Temperature 0~55
DEG C, relative humidity≤85%.
When using, the dynamic dummy shaft 1 of disk is passed to different angles, the real-time data collection of position sensor 4 and by data acquisition unit
Deliver to central processing unit, central processing unit receives gathered data, the measured value according to each angle under same state calculate every
Plate low-lying area nest central value, the measured value according to same angle under different conditions calculates hollow nest deflection.
When the steam turbine low-lying area nest center measuring device that the present embodiment is provided is used, maintainer only needs viewing, Operational Note
This computer, routinely metering system just can obtain each group measurement data in computer, and obtain the upper and lower of each measurement position low-lying area nest
Left-right deviation amount.Measurement is simple, reproducible, certainty of measurement 0.01mm, resolution ratio 0.01mm.
The steam turbine low-lying area nest center measuring device that the present embodiment is provided can provide reliable measurement data, to improve unit
Repair quality and accelerate repair schedule, mitigate maintainer labour intensity.
Claims (5)
1. a kind of steam turbine low-lying area nest center measuring device, it is characterised in that：Including dummy shaft (1), support (2) coaxial sleeve is located at dummy shaft
(1) outside, telescoping tube (3) one end is fixed on support (2), and telescoping tube (3) other end is provided with position sensor (4), and position passes
Sensor (4) connects data acquisition unit, data acquisition unit connection central processing unit.
2. a kind of steam turbine low-lying area nest center measuring device as claimed in claim 1, it is characterised in that：The dummy shaft (1) is located at
It is concentric with turbine rotor on turbine bearing pad.
3. a kind of steam turbine low-lying area nest center measuring device as claimed in claim 1, it is characterised in that：The position sensor
(4) data acquisition unit is connected by data wire.
4. a kind of steam turbine low-lying area nest center measuring device as claimed in claim 1, it is characterised in that：The data acquisition unit leads to
Cross data wire connection central processing unit.
5. a kind of steam turbine low-lying area nest center measuring device as claimed in claim 1, it is characterised in that：The position sensor
(4) it is eddy current displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247133.XU CN206235291U (en) | 2016-11-21 | 2016-11-21 | A kind of steam turbine low-lying area nest center measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247133.XU CN206235291U (en) | 2016-11-21 | 2016-11-21 | A kind of steam turbine low-lying area nest center measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206235291U true CN206235291U (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621247133.XU Active CN206235291U (en) | 2016-11-21 | 2016-11-21 | A kind of steam turbine low-lying area nest center measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588714A (en) * | 2017-08-23 | 2018-01-16 | 华电电力科学研究院 | A kind of novel steam turbine cylinder groove measurement apparatus and its measuring method |
-
2016
- 2016-11-21 CN CN201621247133.XU patent/CN206235291U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588714A (en) * | 2017-08-23 | 2018-01-16 | 华电电力科学研究院 | A kind of novel steam turbine cylinder groove measurement apparatus and its measuring method |
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