CN105741892A - Nuclear power plant main pump case completion dimension measurement method - Google Patents
Nuclear power plant main pump case completion dimension measurement method Download PDFInfo
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- CN105741892A CN105741892A CN201410767683.3A CN201410767683A CN105741892A CN 105741892 A CN105741892 A CN 105741892A CN 201410767683 A CN201410767683 A CN 201410767683A CN 105741892 A CN105741892 A CN 105741892A
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- main pump
- nuclear power
- pump shell
- power station
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Monitoring And Testing Of Nuclear Reactors (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a nuclear power plant main pump case completion dimension measurement method including the steps of: 1) arranging three public points surrounding a nuclear power plant main pump case to allow people to be capable of observing all public points from any measurement point position; 2) uniformly selecting not less than eight points from a hydraulic part fitting surface for measurement, and performing fitting to obtain the hydraulic part fitting surface, wherein the normal direction is the forward direction of a Z axis of the body of the nuclear power plant main pump case; 3) uniformly selecting at least eight measuring points from the edge of an inner surface of periphery of the port of a cold section tube and the edge of the outer periphery of a sucking inlet ring, and performing fitting to obtain the periphery of the port of the tube and key points including centers, normal direction points, and tube port plane, projecting the two central point to the hydraulic part fitting surface, and establishing a coordination system of the body of the nuclear power plant main pump case with the central point of the periphery of the port of a cold section tube as an original point and the central point of the outer periphery of a sucking inlet ring as an X axis; and 4) uniformly selecting at least five measurement positions on every vertical supporting surface and performing fitting to obtain the supporting surface of the port of the tube and the normal direction thereof.
Description
Technical field
The invention belongs to nuclear power engineering field, it is more particularly related to a kind of safe and efficient nuclear power station main pump shell completion dimension measurement method.
Background technology
After nuclear power station main pump shell is completed, in order to meet final acceptance of construction and in-site installation requirement, need to obtain the physical dimension data that main pump shell is relevant, such as, vertical support face to the distance H of hydraulic part mating surface, cold section of mouth of pipe center to the distance h of hydraulic part mating surface, cold section of mouth of pipe center to the distance D of main pump columella line, main pump shell body axis position, cold section of mouth of pipe center and body axis angle, and the internal diameter of cold section of mouth of pipe circle.
At present, nuclear power station main pump shell completion dimensional measurement, relying on the precision basis of lathe self, carries out two-dimensional measurement for part data, thus drawing relativeness between any two.But, existing nuclear power station main pump shell completion dimension measurement method has the disadvantage that
1) spatial relation between reflection multi-group data it is difficult to；
2) need the different locus of main pump shell conversion (as upright, couch), inefficiency, security risk is big.
In view of this, a kind of safe and efficient nuclear power station main pump shell completion dimension measurement method of necessary offer.
Summary of the invention
It is an object of the invention to: overcome prior art not enough, it is provided that a kind of safe and efficient nuclear power station main pump shell completion dimension measurement method.
In order to realize foregoing invention purpose, the invention provides a kind of nuclear power station main pump shell completion dimension measurement method, it comprises the following steps:
1) arranging no less than 3 common points around nuclear power station main pump shell, people can observe all common points in any survey station position；
2) uniformly choose no less than 8 somes measurements at the hydraulic part mating surface of nuclear power station main pump shell, choose hydraulic part mating surface and measure point set fit Plane, taking matching tolerance according to the distribution situation of measurement data points, fit Plane is hydraulic part mating surface plane；
3) at the inner surface edge place of cold section of mouth of pipe circumference of nuclear power station main pump shell, suck choma outer circular edge place uniformly choose at least 8 measuring points, measuring point is carried out circumference matching, take matching tolerance according to the distribution situation of measurement data points, obtain the cold section of mouth of pipe, suck choma cylindrical circumference and key point thereof: center, normal direction point, orifice plane；
4) by the cold section of mouth of pipe of nuclear power station main pump shell, the projection of choma cylindrical central point is sucked to hydraulic part mating surface plane, with Leng Duan mouth of pipe circle center spot projection point for initial point, to suck choma cylindrical central point subpoint for X-axis forward, with hydraulic part mating surface plane for X/Y plane, it is that Z axis forward sets up nuclear power station main pump shell body coordinate system away from main pump shell body；
5) uniformly choosing at least 5 on each vertical support face of nuclear power station main pump shell and measure position, take matching tolerance according to the distribution situation of measurement data points, matching obtains vertical support facial plane and its normal.
As a kind of improvement of nuclear power station main pump shell completion dimension measurement method of the present invention, carrying out step 1) before, confirming that nuclear power station main pump shell reaches its finished state, the protection enclosure cover of each mouth of pipe is opened, and main pump shell is vertically placed on a support arrangement.
As a kind of improvement of nuclear power station main pump shell completion dimension measurement method of the present invention, in step 1) in, arrange more than 3 common points around nuclear power station main pump shell, and warrantor can with the naked eye observe all common points in any survey station position.
As a kind of improvement of nuclear power station main pump shell completion dimension measurement method of the present invention, in step 2) in, adopt plane survey seat to coordinate laser target ball to measure no less than 8 points.
As a kind of improvement of nuclear power station main pump shell completion dimension measurement method of the present invention, in step 2) in, matching tolerance is not more than 0.2mm.
As a kind of improvement of nuclear power station main pump shell completion dimension measurement method of the present invention, in step 3) in, adopt straight pin to measure seat and coordinate laser target ball to measure position measurement at least 8.
As a kind of improvement of nuclear power station main pump shell completion dimension measurement method of the present invention, in step 3) in, matching tolerance is not more than 0.2mm.
As a kind of improvement of nuclear power station main pump shell completion dimension measurement method of the present invention, in step 5) in, adopt at least 5 to uniformly choosing on vertical support face of laser target ball to measure position measurement.
As a kind of improvement of nuclear power station main pump shell completion dimension measurement method of the present invention, in step 5) in, matching tolerance is not more than 0.2mm.
As a kind of improvement of nuclear power station main pump shell completion dimension measurement method of the present invention, utilize API laser tracker that data point is acquired.
Relative to prior art, nuclear power station main pump shell completion dimension measurement method of the present invention has the advantage that
1. can reflect the spatial three-dimensional position relation between nuclear power station main pump shell multi-group data simultaneously, for instance: central axis, azimuth axis, hydraulic part mating surface plane, cold section of mouth of pipe disc, suck choma periphery and 5 vertical support facial planes.
2. nuclear power station main pump shell only needs vertical fixed position, it is not necessary to transformation space position in measurement process, significantly improves efficiency of construction, reduces security risk.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, nuclear power station main pump shell completion dimension measurement method of the present invention is described in detail, in accompanying drawing:
Schematic diagram arranged by the survey station that Fig. 1 is nuclear power station main pump shell completion dimension measurement method of the present invention.
Detailed description of the invention
In order to make the goal of the invention of the present invention, technical scheme and technique effect become apparent from, below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.It should be appreciated that the detailed description of the invention described in this specification is merely to explain the present invention, it is not intended to limit the present invention.
Refer to shown in Fig. 1, nuclear power station main pump shell completion dimension measurement method of the present invention comprises the following steps:
1) field condition confirms: confirming that main reactor pump shell reaches its finished state, the protection enclosure cover of each mouth of pipe is opened, and main reactor pump shell is vertically placed on a support arrangement.
2) around main reactor pump shell surrounding according to survey station location arrangements no less than 3 common points, it is ensured that people can with the naked eye observe all common points in any survey station position.Other embodiments according to the present invention, it is also possible to arrange 5 or more than 5 common points around main reactor pump shell according to actual needs, as long as can guarantee that people can with the naked eye observe all common points in any survey station position.
3) 8 points are uniformly chosen at the hydraulic part mating surface of main reactor pump shell, the measurement of laser target ball is coordinated with plane survey seat, choose hydraulic part mating surface and measure point set fit Plane, rational matching tolerance is taken (such as according to the distribution situation of measurement data points, matching tolerance is not more than 0.2mm), fit Plane is hydraulic part mating surface plane.Other embodiments according to the present invention, it is also possible to uniformly choose the some measurement of more than 8 at hydraulic part mating surface.
4) at the inner surface edge place of cold section of mouth of pipe circumference of main reactor pump shell, suck choma outer circular edge place uniformly choose 8 measure positions, and measure seat cooperation laser target ball measurement with straight pin, 8 measuring points are carried out circumference matching, rational matching tolerance is taken (such as according to the distribution situation of measurement data points, matching tolerance is not more than 0.2mm), obtain corresponding mouth of pipe circumference and key point thereof: center, normal direction point, orifice plane；Other embodiments according to the present invention, it is also possible to main reactor pump shell cold section of mouth of pipe circumference inner surface edge place, suck choma outer circular edge place uniformly choose more than 8 point measure.
5) the cold section of mouth of pipe and suction choma cylindrical central point are projected to hydraulic part mating surface plane, with Leng Duan mouth of pipe circle center spot projection point for initial point, to suck choma cylindrical central point subpoint for X-axis forward, with hydraulic part mating surface plane for X/Y plane, it is that Z axis forward sets up main pump shell body coordinate system away from main pump shell body.
6) on each vertical support face of main reactor pump shell, uniformly choose 5 measure position, measure with laser target ball, rational matching tolerance is taken (such as according to the distribution situation of measurement data points, matching tolerance is not more than 0.2mm), obtain vertical support facial plane and normal direction thereof；Other embodiments according to the present invention, it is also possible to uniformly choose more than 5 on each vertical support face of main reactor pump shell and measure position measurement.
In nuclear power station main pump shell completion dimension measurement method of the present invention, utilize API laser tracker that above-mentioned data point is acquired.
After activating main pump shell body coordinate system, the geometric element that coordinate system comprises has: the central axis of nuclear power station main pump shell, azimuth axis, hanging basket supporting plane, 3 effluent pipe mouth end face circles, 3 water inlet pipe mouth end face circles and 6 mouth of pipe supporting bable tops, and specify that relative tertiary location relation each other.
In conjunction with discussed in detail above it can be seen that relative to prior art, nuclear power station main pump shell completion dimension measurement method of the present invention has the advantage that
1. the existing measuring method based on lathe, measures only for the two-dimentional relation of 2 groups of data, it is impossible to the related data of main reactor pump shell is analyzed comprehensively every time.Nuclear power station main pump shell completion dimension measurement method of the present invention, it is possible to the spatial three-dimensional position relation between reflection multi-group data such as: central axis, azimuth axis, hydraulic part mating surface plane, cold section of mouth of pipe disc, the spatial three-dimensional position relation that sucks between choma periphery and 5 vertical support facial planes simultaneously.
2. the existing measuring method based on the lathe difference according to measured data position, it is necessary to constantly convert the locus of nuclear power station main pump shell.For this large volume of nuclear power station main pump shell, heavy weight equipment, transformation space position means increase security risk and reduce efficiency of construction.Nuclear power station main pump shell completion dimension measurement method of the present invention, nuclear power station main pump shell only needs vertical fixed position, it is not necessary to transformation space position, significantly improves efficiency of construction, reduces security risk.
The announcement of book and instruction according to the above description, above-mentioned embodiment can also be carried out suitable change and amendment by those skilled in the art in the invention.Therefore, the invention is not limited in detailed description of the invention disclosed and described above, should also be as some modifications and changes of the present invention falling in the scope of the claims of the present invention.Although additionally, employ some specific terms in this specification, but these terms are intended merely to convenient explanation, and the present invention does not constitute any restriction.
Claims (10)
1. a nuclear power station main pump shell completion dimension measurement method, it is characterised in that comprise the following steps:
1) arranging no less than 3 common points around nuclear power station main pump shell, people can observe all common points in any survey station position；
2) uniformly choose no less than 8 somes measurements at the hydraulic part mating surface of nuclear power station main pump shell, choose hydraulic part mating surface and measure point set fit Plane, taking matching tolerance according to the distribution situation of measurement data points, fit Plane is hydraulic part mating surface plane；
3) at the inner surface edge place of cold section of mouth of pipe circumference of nuclear power station main pump shell, suck choma outer circular edge place uniformly choose at least 8 measure positions, measuring point is carried out circumference matching, take matching tolerance according to the distribution situation of measurement data points, obtain the cold section of mouth of pipe, suck choma cylindrical circumference and key point thereof: center, normal direction point, orifice plane；
4) central point of the cold section of mouth of pipe of nuclear power station main pump shell, suction choma cylindrical is projected to hydraulic part mating surface plane, with Leng Duan mouth of pipe circle center spot projection point for initial point, to suck choma cylindrical central point subpoint for X-axis forward, with hydraulic part mating surface plane for X/Y plane, it is that Z axis forward sets up nuclear power station main pump shell body coordinate system away from main pump shell body；
5) uniformly choosing at least 5 on each vertical support face of nuclear power station main pump shell and measure position, take matching tolerance according to the distribution situation of measurement data points, matching obtains vertical support facial plane and its normal.
2. nuclear power station main pump shell completion dimension measurement method according to claim 1; it is characterized in that, carrying out step 1) before, confirm that nuclear power station main pump shell reaches its finished state; the protection enclosure cover of each mouth of pipe is opened, and nuclear power station main pump shell is uprightly placed on a support arrangement.
3. nuclear power station main pump shell completion dimension measurement method according to claim 1, it is characterised in that in step 1) in, arrange more than 3 common points around nuclear power station main pump shell, and people can observe all common points in any survey station position.
4. nuclear power station main pump shell completion dimension measurement method according to claim 1, it is characterised in that in step 2) in, adopt plane survey seat to coordinate laser target ball to measure no less than 8 points.
5. nuclear power station main pump shell completion dimension measurement method according to claim 1, it is characterised in that in step 2) in, matching tolerance is not more than 0.2mm.
6. nuclear power station main pump shell completion dimension measurement method according to claim 1, it is characterised in that in step 3) in, adopt straight pin to measure seat and coordinate laser target ball to measure position measurement at least 8.
7. nuclear power station main pump shell completion dimension measurement method according to claim 1, it is characterised in that in step 3) in, matching tolerance is not more than 0.2mm.
8. nuclear power station main pump shell completion dimension measurement method according to claim 1, it is characterised in that in step 5) in, adopt at least 5 to uniformly choosing on vertical support face of laser target ball to measure position measurement.
9. nuclear power station main pump shell completion dimension measurement method according to claim 1, it is characterised in that in step 5) in, matching tolerance is not more than 0.2mm.
10. the nuclear power station main pump shell completion dimension measurement method according to any one of claim 1 to 9, it is characterised in that utilize API laser tracker that data point is acquired.
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Citations (3)
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| US20100312370A1 (en) * | 2007-12-05 | 2010-12-09 | Lind William H | Method and apparatus to improve design, manufacture, performance and/or use of well tools |
| CN102637463A (en) * | 2012-04-11 | 2012-08-15 | 中国核工业二三建设有限公司 | Method for installing main loop system in nuclear island of nuclear power plant |
| CN103839599A (en) * | 2013-12-15 | 2014-06-04 | 中广核工程有限公司 | Measurement method for as-built size of nuclear power station pressure vessel |
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2014
- 2014-12-12 CN CN201410767683.3A patent/CN105741892A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100312370A1 (en) * | 2007-12-05 | 2010-12-09 | Lind William H | Method and apparatus to improve design, manufacture, performance and/or use of well tools |
| CN102637463A (en) * | 2012-04-11 | 2012-08-15 | 中国核工业二三建设有限公司 | Method for installing main loop system in nuclear island of nuclear power plant |
| CN103839599A (en) * | 2013-12-15 | 2014-06-04 | 中广核工程有限公司 | Measurement method for as-built size of nuclear power station pressure vessel |
Non-Patent Citations (3)
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| 李佳斌 等: "核电站主管道自动焊三维测量与组对技术的研究", 《科技创新导报》 * |
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Application publication date: 20160706 |