CN104992738A - Nuclear island main equipment installation process based on three-dimensional high-precision measurement - Google Patents
Nuclear island main equipment installation process based on three-dimensional high-precision measurement Download PDFInfo
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- CN104992738A CN104992738A CN201410364812.4A CN201410364812A CN104992738A CN 104992738 A CN104992738 A CN 104992738A CN 201410364812 A CN201410364812 A CN 201410364812A CN 104992738 A CN104992738 A CN 104992738A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
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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
Abstract
The present invention discloses a nuclear island main equipment installation process based on three-dimensional high-precision measurement. The nuclear Island main equipment installation process comprises: placing a pressure vessel in place, wherein the processing thickness of a pad block is calculated by using a three-dimensional high-precision measurement device, the processed pad block is placed on a support ring, the pressure vessel is lifted onto the support ring, and position adjusting is performed between the pressure vessel and the support ring by using the pad block; respectively placing a cold section pipeline and a thermal section pipeline in place, wherein the cold pressure vessel port of the cold section pipeline and the thermal pressure vessel port of the thermal section pipeline are respectively subjected to pipe opening pairing with the pressure vessel; placing a main pump in place, wherein the main pump and the cold main pump port of the cold section pipeline are subjected to pipe opening pairing; placing a transition section pipeline in place, wherein the transition main pump port of the transition section pipeline and the main pump are subjected to pipe opening pairing; and placing a steam generator in place, wherein the center positions of the transition evaporator port of the transition pipeline and the thermal evaporator port of the thermal section pipeline are respectively measured by using the three-dimensional high-precision measurement device, and the steam generator is respectively subjected to pipe opening pairing with the transition evaporator port and the thermal evaporator port.
Description
Technical field
The application relates to the technique of Nuclear Power Station, is specifically related to a kind of nuclear island primary device mounting process measured based on three-dimensional high-precision.
Background technology
Example is installed as with CPR1000 nuclear island primary device, CPR1000 nuclear island agent structure is made up of reactor and 3 closed circuits in parallel, these loops make radial layout centered by reactor pressure vessel, every bar loop is all made up of a main coolant pump (abbreviation main pump), a steam generator and corresponding pipeline and instrument, and CPR1000 nuclear island primary device comprises pressure vessel, main pump, steam generator and corresponding pipeline.
Each closed circuit is divided into cold section, hot arc and transition section three parts, usual each part be divided into 2 pipeline section manufactures and the supply of material to on-the-spot, then by in-site measurement, group to and be welded to connect with the main equipment such as pressure vessel, steam generator after cutting away some steps such as unnecessary pipeline section, the installation process of pressure vessel and steam generator is also more loaded down with trivial details, as pressure vessel install time, because pressure vessel is installed on pressure vessel support ring, in order to ensure that pressure vessel rear absolute altitude in place and levelness meet design requirement, adjustment cushion block to be added at the surface of contact of pressure vessel and support ring, and adjust cushion block needs according to pressure vessel on-site hoisting survey calculation, then result of calculation is fed back to producer, producer is according to this result processing adjustment cushion block, between adjustment cushion block processing period, pressure vessel just cannot be installed, follow-up related work is made also to need to postpone, claim for eot, the mounting process more complicated of existing CPR1000 nuclear island primary device, and in work progress, need time and the manpower of at substantial.
Summary of the invention
Owing to needing to carry out follow-up construction according to the situ measurements of main equipment in the installation process of nuclear island primary device, make the installation process more complicated of main device and installation period long, the application provides a kind of nuclear island primary device mounting process measured based on three-dimensional high-precision, comprises the steps:
The pressure vessel of nuclear island is in place: adopt three-dimensional high-precision measurement mechanism to carry out acceptance survey and the rear measurement of support ring grouting of pressure vessel, calculate the processing thickness of cushion block, according to processing thickness processing cushion block, cushion block is positioned on support ring, pressure vessel is lifted on support ring, adopts cushion block to carry out position adjustment therebetween;
The cold segment pipe of nuclear island and hot arc pipeline are distinguished in place: the cold pressure container port of cold segment pipe and pressure vessel are carried out mouth of pipe group pair, and the thermal pressure container port of hot arc pipeline and pressure vessel carry out mouth of pipe group pair;
The main pump of nuclear island is in place: the cold main pump port of main pump and cold segment pipe is carried out mouth of pipe group pair;
The transition section pipeline of nuclear island is in place: the transition main pump port of transition section pipeline and main pump are carried out mouth of pipe group pair;
The steam generator of nuclear island is in place: adopt three-dimensional high-precision measurement mechanism to measure the center of the transition evaporator port of transition section pipeline and the hot vaporizer port of hot arc pipeline respectively, steam generator is carried out mouth of pipe group pair with transition evaporator port and hot vaporizer port respectively.
The beneficial effect of the application is: before the nuclear island primary device mounting process employing main equipment based on three-dimensional accuracy measurement that the application provides is in place, three-dimensional high-precision measurement mechanism is first utilized to carry out surveying and calculating to the cushion block that main equipment carries out needing in acceptance survey and installation process, according to three-dimensional high-precision measurement mechanism feedback measurement result place main equipment or and processing cushion block, avoid in manual site's measuring process the complicated processes of the main equipment that moves around, and the follow-up work of postponing because of processing cushion block, the mounting process that the application provides shortens the set-up time of main equipment effectively, shorten nuclear power construction duration, human cost and construction costs are saved.
Accompanying drawing explanation
Fig. 1 is nuclear island agent structure schematic diagram;
Fig. 2 is nuclear island primary device perspective view;
Fig. 3 is this routine nuclear island primary device flow of installation figure;
Fig. 4 is the cushion block processing thickness measure schematic diagram of this example;
Fig. 5 is main pump and the Pipe installing technological process figure of this example.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
Nuclear island primary device comprises pressure vessel 1, steam generator 2, main pump 3 and corresponding pipeline 4, as depicted in figs. 1 and 2, CPR1000 nuclear island agent structure is made up of reactor and 3 closed circuits in parallel, these loops make radial layout centered by reactor pressure vessel 1, and every bar loop is all made up of a main pump 3, steam generator 2, corresponding pipeline 4 and instrument; In each loop, the pipeline exported between steam generator 2 entrance at reactor pressure vessel 1 is called hot arc pipeline 41, pipeline between main pump 3 and pressure vessel 1 entrance is called cold segment pipe 43, and the pipeline between steam generator 2 and main pump 3 is called transition section pipeline 42.
At present, the installation process of nuclear island primary device adopts traditional measurement method to calculate data required in installation process usually, typical measuring arrangements makes installation process more complicated, and the construction time limit is long, is described for the installation process of pressure vessel and main pipeline.
1) installation process of pressure vessel 1.
Pressure vessel 1 is arranged on pressure vessel support ring 5, in order to ensure that pressure vessel 1 installs rear absolute altitude and levelness meets design requirement, will add cushion block 6 at pressure vessel 1 and the surface of contact of support ring 5.
On-the-spot concrete operations are: hang with ring and hang on support ring 5 by pressure vessel 1, keep lifting state, fill in simulation cushion block on the contact surface.By measuring absolute altitude and the levelness of pressure vessel hanging basket supporting surface, constantly adjusting pad thickness, until meet the demands, then processing final cushion block 6 according to the final simulation pad thickness obtained.
Because pressure vessel 1 weighs more than 300 ton, on-the-spot adjustment needs to take a large amount of time and manpower, need expend about 5 days time altogether to complete surveying and calculating.In addition, because formal cushion block 6 need be processed in producer according to survey calculation result, about 15 days are needed altogether.Because between cushion block 6 processing period, pressure vessel 1 cannot finally be installed on support ring 5, just can carry out after follow-up related work is also just postponed 15 days.
2) installation process of pipeline 4.
Pipeline 4 is divided into cold section 43, hot arc 41 and transition section 42 3 parts, usual each part be divided into 2 pipeline section manufactures and the supply of material to on-the-spot, then by in-site measurement, group to and be welded to connect with the main equipment such as pressure vessel 1, steam generator 2 after cutting away some steps such as unnecessary pipeline section.
In order to obtain the size of each pipeline section surplus cutting, the time of at substantial and manpower is wanted to carry out surplus cutting pre-test to each pipeline section of main pipeline at the construction field (site).Meanwhile, there is distortion due to welding and shrink, after each pipeline 4 first paragraph has welded, also will measure a pipeline 4 again according to the physical location after welding, thus the cutting quantity of adjustment residue one section and cutting angle.Due to the restriction of measuring accuracy, scene also needs repeatedly moving steam generator 2 and main pump 3 to coordinate the surveying work of pipeline 4.The associated work time of a loop needs about 10 days, and three loops need 30 days altogether.
Added up can be drawn by above measuring process and related work required time: pressure vessel 1 and pipeline 4 traditional measurement method install its duration need about 50 days.
In order to simplify above-mentioned installation process, and shorten the above-mentioned installation time limit, this example provides a kind of nuclear island primary device mounting process measured based on three-dimensional high-precision, wherein, three-dimensional high-precision measurement mechanism comprises close-range photogrammetry instrument, high-precision laser total powerstation and precision level, the software adopted is three-dimensional adjustment process software and close-range photogrammetry data processing software, wherein, close-range photogrammetry instrument is INCA3+V-STARS, high-precision laser total powerstation is TDRA6000, and precision level is NA2+GPM3.Utilize high-precision laser total powerstation to set up high accuracy three-dimensional SURVEYING CONTROL NETWORK at the construction field (site), accurately the installation site of location main equipment, as shown in Figure 3, technological process comprises the steps the process flow diagram of the nuclear island primary device mounting process of this example.
S1: the pressure vessel 1 of nuclear island is in place.
Three-dimensional high-precision measurement mechanism is adopted to carry out acceptance survey and the rear measurement of support ring grouting of pressure vessel, calculate the processing thickness of cushion block 6, according to processing thickness processing cushion block 6, cushion block 6 is positioned on support ring 5, pressure vessel 1 is lifted on support ring 5, adopts cushion block 6 to carry out position adjustment therebetween.
Concrete, as shown in Figure 4, use close-range photogrammetry instrument to obtain the acceptance survey data of pressure vessel 1, according to the distance A of acceptance survey data calculating pressure container 1 in-pile component hanging basket supporting surface to mouth of pipe lower support platform; Use high-precision laser total powerstation to record the position of support ring 5, employing precision level records absolute altitude H and the levelness of the support ring 5 after grouting; According to computing formula D=7050.7mm-A-H+ α, in formula, α is sedimentation empirical constant, and general α gets 0.3mm, calculates cushion block 6 thickness.
It is just achievable before pressure vessel 1 is transported to scene for processing calculating due to cushion block 6, does not need to take separately 15 days at the scene and completes related work, realizes pressure vessel 1 and once lifts and namely complete installation process.Therefore, pressure vessel 1 is transported to on-the-spot rear measurement of correlation work only needs 2 days, and the installation period that old way " on-site hoisting Adjustable calculation cushion block " shortens about 18 days is compared in this part work.
S2: the cold segment pipe 43 of nuclear island and hot arc pipeline 41 are distinguished in place.
Cold segment pipe 43 is provided with cold pressure container port and cold main pump port, hot arc pipeline 41 is provided with thermal pressure container port and hot vaporizer port, transition section pipeline 42 is provided with transition main pump port and transition evaporator port, the cold pressure container port of cold segment pipe 43 and pressure vessel 1 are carried out mouth of pipe group pair, thermal pressure container port and the pressure vessel 1 of hot arc pipeline 41 carry out mouth of pipe group pair, concrete, the S2 step of this example comprises the following steps again.
1) cold segment pipe 43 of nuclear island is measured in place.
Concrete, set up high-precision laser total powerstation in the loop, utilize target prismosphere to coordinate specific purpose tool (screwed measurement pedestal), measure the central point of vertical support; Utilize precision level to measure absolute altitude and the levelness of hydraulic part supporting surface, guarantee main pump pump case can reach hot condition under theoretical position.
By staff, cold pressure container port is carried out mouth of pipe group to after completing with pressure vessel 1, survey crew evenly measures 8 points by high-precision laser total powerstation and cold section of mouth of pipe center survey instrument to cold main pump port, calculate its center, meet cold main pump port misalignment of axe ± 1mm, the accuracy requirement of absolute altitude deviation ± 1mm.
2) the hot arc pipeline 41 of nuclear island is measured in place.
Concrete, by staff, thermal pressure container port is carried out mouth of pipe group to after completing with pressure vessel 1, survey crew evenly measures 8 points by high-precision laser total powerstation and specific purpose tool to hot vaporizer port, calculate center, meet hot steam generator port misalignment of axe ± 1mm, the accuracy requirement of absolute altitude deviation ± 1mm, and then the mouth of pipe right for thermal pressure container port and pressure vessel 1 group is welded.
S3: the main pump 3 of nuclear island is measured in place.
Main pump 3 and the cold main pump port of cold segment pipe 43 are carried out mouth of pipe group pair, concrete, main pump and cold main pump port are carried out mouth of pipe group to rear by staff, survey crew is measured main pump place-centric and levelness again, by high-precision laser total powerstation and specific purpose tool, the some meter to main pump surface calculates center, meet the mouth of pipe group of cold main pump port and main pump 3 to gap deviation 0 ~ 1mm, group is to the accuracy requirement of unfitness of butt joint 0 ~ 1.5mm, guarantee that it meets the accuracy requirement of position theoretical position, and then the mouth of pipe right for cold pressure container port and pressure vessel 1 group is welded, and the cold main pump port mouth of pipe right with main pump 3 groups welds.
S4: the transition section pipeline 42 of nuclear island is measured in place.
The transition main pump port of transition section pipeline 42 and main pump 3 are carried out mouth of pipe group pair, concrete, by staff, transition main pump port is carried out mouth of pipe group to after completing with main pump 3, survey crew evenly measures 8 points by high-precision laser total powerstation and specific purpose tool to transition evaporator port, calculate center, meet the mouth of pipe group of transition main pump port and main pump 3 to gap deviation 0 ~ 1mm, the mouth of pipe right for transition main pump port and main pump 3 groups to the accuracy requirement of unfitness of butt joint 0 ~ 1.5mm, and then welds by group.
S5: the steam generator 2 of nuclear island is in place.
Before placement steam generator 2, adopt three-dimensional high-precision measurement mechanism to measure the center of the transition evaporator port of transition section pipeline and the hot vaporizer port of hot arc pipeline respectively, then described steam generator is carried out mouth of pipe group pair with transition evaporator port and hot vaporizer port respectively.
In this example, mouth of pipe group is carried out to comprising before with transition evaporator port and hot vaporizer port respectively: the displacement calculating transition evaporator end mouth at steam generator 2, transition evaporator port is shifted, measure the beveling and cutting amount of hot vaporizer port and transition evaporator port, according to beveling and cutting amount, hot vaporizer port and transition evaporator port are cut into groove, and polishing finished edge, detailed process is as follows, and its process flow diagram is as shown in Figure 5.
S51: the displacement calculating transition evaporator end mouth.
This step measures the center of hot vaporizer port and transition evaporator port, calculates the displacement of transition evaporator port.
Concrete, by the transition main pump port be connected with main pump 3, after the thermal pressure container port be connected with pressure vessel 1 has welded respectively, need to measure transition evaporator port and hot vaporizer port, high-precision laser total powerstation is used to coordinate the central three-dimensional coordinate of special measurement instrument measurement port, whether the center absolute altitude of checking transition evaporator end mouth and hot vaporizer port meets design requirement on the one hand, the displacement determining transition evaporator port on the other hand, because there is welding during pipeline welding to shrink, certain welding contracted quantity must be reserved on pipeline and offset this effect, so need mobile transition evaporator port can make the smooth dropping place group pair of steam generator.Set up high-precision laser total powerstation in position, using Three dimensions control point as resection benchmark, on the mouth of pipe, gather 8 points by special measurement instrument and prismosphere, calculate the three-dimensional coordinate of transition evaporator port and hot vaporizer port.Usage data software for calculation for benchmark, obtains the displacement of transition evaporator port with the acceptance survey data of steam generator two mouths of pipe.In transition section shifting process, use above-mentioned measuring method to monitor transition evaporator port center position, the range deviation of the center position after ensureing to be shifted and calculating position is within 1.0mm.
S52: the beveling and cutting amount measuring hot vaporizer port and transition evaporator port.
Three-dimensional high-precision measurement mechanism is adopted to measure mouth of pipe centre coordinate and the termination coordinate of hot vaporizer port and described transition evaporator port, the mouth of pipe completion size of mouth of pipe centre coordinate and termination coordinate and described steam generator is carried out Optimum Matching calculating, obtain the beveling and cutting amount of hot vaporizer port and transition evaporator port, concrete, adopt close-range photogrammetry instrument hot vaporizer port and the measurement of transition evaporator port to be obtained to the coordinate of accurate mouth of pipe center and termination, it is for the calculating of retaining wall on slope amount.Install special photogrammetric mark at the groove place of hot vaporizer port and transition evaporator port, each collection 8 points calculate the coordinate at the mouth of pipe and center, termination.By the conduit axis that the mouth of pipe and termination central point construct, under software, carry out Optimum Matching calculating with the mouth of pipe completion size of steam generator, obtain the amount that the mouth of pipe needs cutting.
S53: polishing finished edge.
Because the accuracy requirement of retaining wall on slope is very high, so be generally divided into processing of polishing successively for 4 times in process.In close-range photogrammetry, reflecting piece is pasted onto inwall and the surrounding of hot arc pipeline and transition section pipeline, and pastes 8 points along groove face inner circle, after completing, start shooting, collecting photo, calculate groove residue processing capacity.
Utilize V-STARS software to carry out process to photograph to resolve, calculate 8 distances of 8 points to theoretical position of stickup respectively, judge that whether 8 distances are equal, if unequal, represent that current groove face tilts, the attitude of on-the-spot adjustment beveling machine, and according to groove residue processing capacity polishing finished edge.
V-STARS software is the outstanding representative of current digital close view photogrammetric system, it measures relative accuracy can reach 120,000/and, and it is fast to have measuring speed, and automaticity is high, and the advantage such as can work under severe conditions.
After the retaining wall on slope of hot vaporizer port and transition evaporator port is qualified, vertical support cushion block (being placed on the cushion block between steam generator vertical support and steam generator) is processed in advance according to the position of steam generator 2 of analog computation before and the elevation data of vertical support upper surface, and steam generator 2 can be introduced smoothly.
The mounting process that this example provides, if make rational use of resources with the time shared by welding not considering between pipeline and equipment, only introduce with regard to equipment and measure and install, the duration that single loop takies is: cold segment pipe 43 is measured and main pump 3 surveying work needs 1 day, hot arc pipeline 41 is measured to install and adjust and is taken 0.5 day duration, transition section pipeline 42 is measured to install and adjust and is taken 0.5 day duration, the measurements and calculations of transition evaporator port and hot vaporizer port take 1 day duration, the groove of transition evaporator port and hot vaporizer port is measured and polishing processing takies 1 day duration, take 4 days durations altogether.
In the mounting process of this example, single loop only takies 4 days durations, 3 loops totally 12 days, and the single loop of traditional installation process takies 10 days durations, 3 loops need 30 days, it can thus be appreciated that the mounting process of this example obviously optimizes the installation process of nuclear island primary device, under the prerequisite ensureing installation quality, effectively have compressed main equipment and be arranged on time in critical path, shorten the duration that nuclear power is built, this routine time used loop construction time is only 25% of the former loop construction time, has saved the cost of engineering.Because the three-dimensional high-precision measurement mechanism mentioned in this example is all proven technique, there is the value of very large popularization, the multi-field engineerings such as conventional power plant construction, auto industry, aircraft industry, railway can be applied to.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (9)
1., based on the nuclear island primary device mounting process that three-dimensional high-precision is measured, it is characterized in that, comprise the steps:
The pressure vessel of nuclear island is in place: adopt three-dimensional high-precision measurement mechanism to carry out acceptance survey and the rear measurement of support ring grouting of pressure vessel, calculate the processing thickness of cushion block, described cushion block is processed according to described processing thickness, described cushion block is positioned on support ring, described pressure vessel is lifted on described support ring, adopts described cushion block to carry out position adjustment therebetween;
The cold segment pipe of nuclear island and hot arc pipeline are distinguished in place: the cold pressure container port of described cold segment pipe and described pressure vessel are carried out mouth of pipe group pair, and thermal pressure container port and the described pressure vessel of described hot arc pipeline carry out mouth of pipe group pair;
The main pump of nuclear island is in place: the cold main pump port of described main pump and described cold segment pipe is carried out mouth of pipe group pair;
The transition section pipeline of nuclear island is in place: the transition main pump port of described transition section pipeline and described main pump are carried out mouth of pipe group pair;
The steam generator of nuclear island is in place: adopt three-dimensional high-precision measurement mechanism to calculate the center of the transition evaporator port of described transition section pipeline and the hot vaporizer port of described hot arc pipeline respectively, described steam generator is carried out mouth of pipe group pair with described transition evaporator port and hot vaporizer port respectively.
2. mounting process as claimed in claim 1, is characterized in that, described employing three-dimensional high-precision measurement mechanism calculates and regulates the processing thickness of cushion block to comprise:
Three-dimensional high-precision measurement mechanism is adopted to carry out the acceptance survey of described pressure vessel, and measure the physical size A of in-pile component hanging basket supporting surface to mouth of pipe lower support table top, and measure the absolute altitude value H of the support ring after grouting, adopt computing formula D=7050.7mm-A-H+a to calculate described processing thickness, described a is sedimentation empirical constant.
3. mounting process as claimed in claim 2, it is characterized in that, described a is 0.3mm.
4. mounting process as claimed in claim 1, it is characterized in that, described steam generator carries out mouth of pipe group to before with described transition evaporator port and hot vaporizer port respectively, comprise step: the displacement calculating described transition evaporator port according to the described center of transition evaporator port and the center of hot vaporizer port, according to described displacement, described transition evaporator port is shifted.
5. mounting process as claimed in claim 4, it is characterized in that, after described transition evaporator port displacement, described steam generator carries out mouth of pipe group to before with described transition evaporator port and hot vaporizer port respectively, also comprise step: the beveling and cutting amount calculating described hot vaporizer port and described transition evaporator port, according to described beveling and cutting amount, described hot vaporizer port and described transition evaporator port are cut into groove, and the described groove of polishing processing.
6. mounting process as claimed in claim 5, it is characterized in that, the detailed process of the beveling and cutting amount of described measuring and calculating hot vaporizer port and described transition evaporator port comprises:
Three-dimensional high-precision measurement mechanism is adopted to measure mouth of pipe centre coordinate and the termination coordinate of described hot vaporizer port and described transition evaporator port, the mouth of pipe completion size of described mouth of pipe centre coordinate and termination coordinate and described steam generator is carried out Optimum Matching calculating, obtains the beveling and cutting amount of described hot vaporizer port and described transition evaporator port.
7. mounting process as claimed in claim 5, it is characterized in that, the detailed process of described polishing finished edge comprises:
Reflecting piece is pasted onto inwall and the surrounding of described hot arc pipeline and described transition section pipeline, and pastes 8 points along described groove face inner circle, calculate groove residue processing capacity;
Calculated 8 distances of described 8 points and theoretical position by three-dimensional high-precision measurement mechanism respectively, judge that whether described 8 distances are equal, if unequal, then according to the described groove of described groove residue processing capacity polishing processing.
8. the mounting process as described in any one of claim 1-7, is characterized in that, described three-dimensional high-precision measurement mechanism comprises close-range photogrammetry instrument, high-precision laser total powerstation and precision level.
9. mounting process as claimed in claim 8, it is characterized in that, described high-precision laser total powerstation is TDRA6000.
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| CN105976877A (en) * | 2016-07-05 | 2016-09-28 | 上海核工程研究设计院 | Double-loop nuclear energy system |
| CN106340328A (en) * | 2016-09-09 | 2017-01-18 | 中国核工业二三建设有限公司 | Method for aligning and leveling pressure vessel cylinder and steam generator in nuclear power plant |
| CN106340328B (en) * | 2016-09-09 | 2022-05-20 | 中国核工业二三建设有限公司 | Alignment and leveling method for nuclear power station pressure vessel cylinder and steam generator |
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| CN107274942B (en) * | 2017-06-01 | 2019-03-01 | 中国核工业第五建设有限公司 | The installation method of AP1000 nuclear power station middle and lower part in-pile component |
| CN108278997A (en) * | 2017-12-29 | 2018-07-13 | 中国核工业二三建设有限公司 | A kind of nuclear power station main equipment control net and its method for building up |
| CN108278997B (en) * | 2017-12-29 | 2021-10-19 | 中国核工业二三建设有限公司 | Main equipment control network of nuclear power station and establishment method thereof |
| CN109826445A (en) * | 2019-01-24 | 2019-05-31 | 中广核工程有限公司 | A kind of nuclear power station ring beam-and-rail adjustment pad measurement processing method |
| CN112037952A (en) * | 2020-05-18 | 2020-12-04 | 中国核工业第五建设有限公司 | Method for installing and dismantling in-reactor component current limiter of AP1000 reactor type nuclear power station |
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Application publication date: 20151021 |