CN106568389A - Method for monitoring deformation of air-cooled island frame - Google Patents
Method for monitoring deformation of air-cooled island frame Download PDFInfo
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- CN106568389A CN106568389A CN201510658642.5A CN201510658642A CN106568389A CN 106568389 A CN106568389 A CN 106568389A CN 201510658642 A CN201510658642 A CN 201510658642A CN 106568389 A CN106568389 A CN 106568389A
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Abstract
The invention discloses a method for monitoring the deformation of an air-cooled island frame. The method comprises: performing three-dimensional scanning on the overall frame or the local frame of an air-cooled island; comparing an acquired scanning result with a corresponding reference result, and determining whether or not there is frame deformation based on a comparison result. The method may improve operability, convenience and data accuracy.
Description
Technical field
The present invention relates to Air-Cooling Island technology, more particularly to a kind of Air-Cooling Island frame deformation monitoring method.
Background technology
Air-Cooling Island is the core component of Direct Air-Cooled Turbo-generator Set, is 2008 from the external new technique introduced, mesh
It is widely applied in the front levels of 300MW at home, 600MW levels and 1000MW level Turbo-generator Sets.
The technology uses air as cooling medium, instead of traditional recirculated water and cooling tower, so as to reduce circulation
Water vapor is lost, and has saved substantial amounts of water resource, particularly especially suitable in the deficienter the Northwest of water resource.
Air-Cooling Island generally by the way of high-order arrangement, by tens of air cooling blower fans cooling air is provided, will be by steam discharge
The turbine discharge that pipeline is sent in air cooling tubes condenser is condensed into water, and condensate sends back to steam turbine by condensate pump again
Heat regenerative system in.
Air cooling blower fan is generally laid on 40～50 meters of high frameworks, is made up of the part such as motor, reductor.Motor,
Reductor etc. adopts the upright parallel axle kind of drive, using variable-frequency control technique, cause to vibrate for a long time it is big, subtract
The defects such as fast machine well damage.
And the Long-term Vibration of air cooling blower fan can largely affect the rigidity of Air-Cooling Island framework so as to deform, enter
And dangerous, the irregular operation of Air-Cooling Island framework and auxiliary device are caused, therefore it is necessary to the change to Air-Cooling Island framework
Shape situation is monitored in time.
In prior art, mainly deformation monitoring is realized using limited element analysis technique, finite element analyses are using mathematical approach
Method is simulated to actual physical system, is replaced being solved again after challenge with better simply problem, will solve domain and sees
Into being made up of many little interconnection subdomains for being referred to as finite element, a suitable approximate solution is assumed to each unit, so
What afterwards this domain of Derivation was total meets condition, so as to obtain the solution of problem.Finite element analyses can be divided into three phases,
Preceding processing stages, calculating solution stage and postpositive disposal stage, wherein, preceding processing stages mainly set up limited
Meta-model, completes unit grid division, and the postpositive disposal stage is mainly acquisition process analysis result, enables users to simplicity
Extraction information, understands result of calculation.
But limited element analysis technique implementation steps are relatively complicated, and data processing be approximation, operability, convenience sum
It is poor according to accuracy etc..
The content of the invention
In view of this, the invention provides a kind of Air-Cooling Island frame deformation monitoring method, it is possible to increase operability, convenient
Property and data accuracy etc..
In order to achieve the above object, the technical scheme is that what is be achieved in that：
A kind of Air-Cooling Island frame deformation monitoring method, including：
3-D scanning is carried out to the general frame or Partial frame of the Air-Cooling Island；
The scanning result for getting is compared with corresponding benchmark result, frame is determined whether there is according to comparative result
Frame deformation.
It can be seen that, using scheme of the present invention, 3-D scanning is carried out to the general frame or Partial frame of Air-Cooling Island, so
Scanning result is compared with corresponding benchmark result afterwards, can know whether there is frame deformation according to comparative result
Situation, so as to improve operability and convenience, and, scanning result has high-resolution, high-precision feature,
So as to improve data accuracy etc., the security situation of Air-Cooling Island framework can be accurately grasped.
Description of the drawings
Fig. 1 is the flow chart of Air-Cooling Island frame deformation monitoring method embodiment of the present invention.
Fig. 2 is the scanning result schematic diagram that the general frame to Air-Cooling Island carries out being got after 3 D laser scanning.
Fig. 3 is the scanning result schematic diagram that the Partial frame to Air-Cooling Island carries out being got after 3 D laser scanning.
Specific embodiment
In order that technical scheme is clearer, clear, develop simultaneously referring to the drawings embodiment, to the present invention
The scheme is described in further detail.
Fig. 1 is the flow chart of Air-Cooling Island frame deformation monitoring method embodiment of the present invention, as shown in figure 1, including following
Step 11～12.
Step 11：3-D scanning is carried out to the general frame or Partial frame of Air-Cooling Island.
Step 12：The scanning result for getting is compared with corresponding benchmark result, being determined according to comparative result is
It is no to there is frame deformation situation.
Preferably, three-dimensional laser scanning technique can be adopted, three-dimensional is carried out to the general frame or Partial frame of Air-Cooling Island and is swept
Retouch.
Three-dimensional laser scanning technique is a new and high technology for starting middle nineteen nineties in last century to occur, and it is by a high speed
The method of laser scanning measurement, the three-dimensional coordinate data on large area high-resolution ground quick obtaining testee surface, can
With quick, substantial amounts of collection point position in space information, the 3-dimensional image model quickly to set up object provides a kind of brand-new
Technological means.
In actual applications, after the completion of Air-Cooling Island laying, can periodically i.e. at interval of scheduled duration, i.e., using three
Dimension laser scanner technique, 3-D scanning is carried out to the general frame or Partial frame of Air-Cooling Island, specifically to which/which office
Portion's framework is scanned can be decided according to the actual requirements, the concrete value of the scheduled duration also dependent on being actually needed and
It is fixed, such as one week or one month.
Fig. 2 is the scanning result schematic diagram that the general frame to Air-Cooling Island carries out being got after 3 D laser scanning, Fig. 3
It is scanning result schematic diagram that the Partial frame to Air-Cooling Island carries out being got after 3 D laser scanning.
After scanning result is got every time, the scanning result for getting can be compared with corresponding benchmark result,
If that is, the scanning result for getting for general frame scanning result, by the scanning result for getting with
The corresponding benchmark result of general frame is compared, if the scanning result for getting is the scanning result of Partial frame,
Then the scanning result for getting benchmark result corresponding with the Partial frame is compared, how to be compared as existing
Technology, by comparing, you can know whether there is frame deformation situation.
How to obtain benchmark result not to be restricted, such as, for general frame, general frame will can be swept first
The scanning result got when retouching as the corresponding benchmark result of general frame, for arbitrary Partial frame, can be by first
The scanning result got when being scanned to the Partial frame is used as the corresponding benchmark result of the Partial frame.
In a word, using scheme of the present invention, 3-D scanning is carried out to the general frame or Partial frame of Air-Cooling Island, so
Scanning result is compared with corresponding benchmark result afterwards, can know whether there is frame deformation according to comparative result
Situation, so as to improve operability and convenience, and, scanning result has high-resolution, high-precision feature,
So as to improve data accuracy etc., the security situation of Air-Cooling Island framework can be accurately grasped.
In sum, presently preferred embodiments of the present invention is these are only, is not intended to limit protection scope of the present invention.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in this
Within the protection domain of invention.
Claims (3)
1. a kind of Air-Cooling Island frame deformation monitoring method, it is characterised in that include：
3-D scanning is carried out to the general frame or Partial frame of the Air-Cooling Island；
The scanning result for getting is compared with corresponding benchmark result, frame is determined whether there is according to comparative result
Frame deformation.
2. method according to claim 1, it is characterised in that
The general frame or Partial frame to the Air-Cooling Island carries out 3-D scanning to be included：
Using three-dimensional laser scanning technique, 3-D scanning is carried out to the general frame or Partial frame of the Air-Cooling Island.
3. method according to claim 1 and 2, it is characterised in that
The general frame or Partial frame to the Air-Cooling Island carries out 3-D scanning to be included：
Periodically 3-D scanning is carried out to the general frame or Partial frame of the Air-Cooling Island.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658642.5A CN106568389A (en) | 2015-10-12 | 2015-10-12 | Method for monitoring deformation of air-cooled island frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658642.5A CN106568389A (en) | 2015-10-12 | 2015-10-12 | Method for monitoring deformation of air-cooled island frame |
Publications (1)
| Publication Number | Publication Date |
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| CN106568389A true CN106568389A (en) | 2017-04-19 |
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| CN201510658642.5A Pending CN106568389A (en) | 2015-10-12 | 2015-10-12 | Method for monitoring deformation of air-cooled island frame |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240997A (en) * | 2007-02-07 | 2008-08-13 | 中国钢铁股份有限公司 | Method for evaluating blast furnace gunite effect and method for measuring blast furnace furnace wall remaining thickness |
| CN202092478U (en) * | 2011-05-30 | 2011-12-28 | 内蒙古电力勘测设计院 | Close post supporting structure of direct air cooling device platform |
| CN202099871U (en) * | 2011-05-31 | 2012-01-04 | 内蒙古电力勘测设计院 | Reinforced concrete frame and steel beam combined air-cooling island platform |
| US20130235897A1 (en) * | 2010-09-28 | 2013-09-12 | Astrium Sas | Method and device for non-destructive testing of wind turbine blades |
| CN104034278A (en) * | 2014-06-05 | 2014-09-10 | 北京必可测科技股份有限公司 | Method and device for boiler detection |
-
2015
- 2015-10-12 CN CN201510658642.5A patent/CN106568389A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240997A (en) * | 2007-02-07 | 2008-08-13 | 中国钢铁股份有限公司 | Method for evaluating blast furnace gunite effect and method for measuring blast furnace furnace wall remaining thickness |
| US20130235897A1 (en) * | 2010-09-28 | 2013-09-12 | Astrium Sas | Method and device for non-destructive testing of wind turbine blades |
| CN202092478U (en) * | 2011-05-30 | 2011-12-28 | 内蒙古电力勘测设计院 | Close post supporting structure of direct air cooling device platform |
| CN202099871U (en) * | 2011-05-31 | 2012-01-04 | 内蒙古电力勘测设计院 | Reinforced concrete frame and steel beam combined air-cooling island platform |
| CN104034278A (en) * | 2014-06-05 | 2014-09-10 | 北京必可测科技股份有限公司 | Method and device for boiler detection |
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Application publication date: 20170419 |