CN102522126B - Mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island - Google Patents
Mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island Download PDFInfo
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- CN102522126B CN102522126B CN201110456967.7A CN201110456967A CN102522126B CN 102522126 B CN102522126 B CN 102522126B CN 201110456967 A CN201110456967 A CN 201110456967A CN 102522126 B CN102522126 B CN 102522126B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The invention aims to provide mounting process for a metal reflective heat-insulation layer of a pressure vessel of a nuclear island. By the aid of the mounting process, an integral hoisting process of heat-insulation layers can be omitted, difficulty in engineering quality control is reduced, heat-insulation layer mounting operation on the periphery of the pressure vessel when the pressure vessel is hung can be avoided, and safety risks of mounting of the heat-insulation layers are reduced. In order to realize the purposes, the mounting process for the metal reflective heat-insulation layers of the pressure vessel of the nuclear island is characterized in that the metal reflective heat-insulation layers are sequentially hoisted into a reactor cavity in a layering and blocking manner so as to be mounted on a wall of the reactor cavity of a reactor step by step, and the pressure vessel of the reactor is mounted on the wall; and after the pressure vessel of the reactor is mounted, the metal reflective heat-insulation layers of a nozzle and a bottom head are sequentially hoisted into the reactor cavity in a layering and blocking manner so as to be mounted on the peripheries of the nozzle and the bottom head of the pressure vessel of the reactor step by step.
Description
Technical field
The technique that the present invention relates to Nuclear Power Station, relates in particular to nuclear island primary device---reactor pressure vessel heat-insulation layer mounting process.
Background technology
Existing nuclear island of nuclear power station reactor pressure vessel cylindrical shell heat-insulation layer is installed the following two kinds of modes that mainly contain.
One, after pressure vessel just installs into, first use crane that reactor pressure vessel is sling, then on reactor pressure vessel outer wall, in accordance with the order from top to bottom, Piecemeal erection heat-insulation layer.Heat-insulation layer must be installed after reactor pressure vessel arrival, and the shortcoming such as pressure vessel, for a long time in lifting stress, exists long construction period while installing, and work progress exists larger potential safety hazard, and Engineering Quality Control is more complicated.
Two, first make one for the channel-section steel circle of assembled heat-insulation layer, then utilize channel-section steel circle to assemble heat-insulation layer abutment ring, then be lifted on a stand, then warming plate is successively installed, thereby is precast heat-insulation layer.Then before pressure vessel hoisted in position, the heat-insulation layer precasting is lifted up into reactor chamber, and be placed in pressure vessel support.During pressure vessel hoisted in position, pressure container cylinder is inserted in prefabricated heat-insulation layer, and heat-insulation layer support ring is connected with pressure vessel.Compare the first technology, the second technology has shortened the later construction period of pressure vessel arrival effectively, has reduced under the state being lifted at pressure vessel the workload of installing on pressure vessel.But the second technology still has certain shortcoming, heat-insulation layer diameter large (4464mm) first, highly higher (7650mm), and the channel-section steel circle that supports heat-insulation layer is bolt connection, warming plate is self-plugging rivet riveted joint, easily causes heat-insulation layer distortion during lifting; Secondly at heat-insulation layer, to the distance of reactor cavity, only have 100mm, during heat-insulation layer integral hoisting, be easy to cause heat-insulation layer to touch surface, heap chamber, cause heat-insulation layer damage; In addition, heat-insulation layer be operated in heap being connected of pressure container cylinder and carry out in chamber, working space is narrow and small, difficulty of construction is larger, and has potential safety hazard.
Summary of the invention
The object of the present invention is to provide a kind of mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, the integral hoisting of its desirable XBWC, reduce the difficulty of Engineering Quality Control, under the state that also can avoid being hung at pressure vessel, at it, carry out heat-insulation layer installation exercise around, reduce the security risk that heat-insulation layer is installed.
For realizing described object mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, be characterized in, comprise step 1), before reactor pressure vessel is installed, the layering of metallic reflection formula heat-insulation layer, the piecemeal at the cylindrical shell position of pressure vessel are successively hung in to heap chamber, with substep, be arranged on the reactor cavity body of wall at reactor pressure vessel place; Step 2), after reactor pressure vessel is installed, the layering of metallic reflection formula heat-insulation layer, the piecemeal at the ozzle of pressure vessel and bottom (head) position are successively hung in to heap chamber, with substep, be arranged on ozzle and the bottom (head) surrounding of reactor pressure vessel.
Described mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, its further feature is, step 1) comprising: composite steel bracket is installed to reactor cavity body of wall in A, cylindrical shell position, every layer of steel corbel, along an annular substep, then installed respectively ring-shaped steel bracket on corresponding composite steel bracket; And B, installation warming plate are to the firm support of annular, then at the internal layer of warming plate, water conservancy diversion liner plate are installed, water conservancy diversion liner plate is fixed on ring-shaped steel bracket; Step 2) comprise C, bottom neutron shield thing steel bracket be installed (before reactor pressure vessel is in place or afterwards) and the support of bottom (head) steel, bottom neutron shield thing steel bracket is mounted on body of wall steel corbel, and bottom (head) steel supports and is mounted on the pre-embedded bolt or expansion bolt on ground; D, installation bottom neutron shield thing are to neutron shield thing steel bracket; Water conservancy diversion liner plate or warming plate to bottom (head) steel is installed and is supported above, every layer of water conservancy diversion liner plate or warming plate, along an annular substep, will be installed warming plate respectively at corresponding water conservancy diversion liner plate skin; And E, mounting pipe mouth portion insulation construction, comprise upper neutron shielding thing support, upper neutron shielding thing, ozzle warming plate and top warming plate are installed.
Described mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, its further feature is, in steps A, first spot welding fixedly steel corbel, to reactor cavity body of wall precalculated position, confirms that after the passed examination of installation site, pre-installation ring-shaped steel bracket is to steel corbel, after ring-shaped steel bracket pre-installation, whether the vertical outer edge of inspection ring-shaped steel bracket to the distance of pressure vessel center line can meet design requirement in adjustable extent, if can meet, by steel corbel is carried out to full weld operation; If ring-shaped steel bracket can not meet in adjustable extent, to steel corbel base plate jump a queue backing plate, repair a die, ring-shaped steel bracket carried out to reaming, in order to revise ring-shaped steel bracket, ring-shaped steel bracket is met design requirement in adjustable extent, and then steel corbel is carried out to full weld operation; Until all steel corbels, after all full weld finishes, formally ring-shaped steel bracket is adjusted, the vertical outer edge that makes ring-shaped steel bracket to the distance of pressure vessel center line meets design requirement, and then with bolt, ring-shaped steel bracket is fixed on steel corbel.
Described mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, its further feature is, in step B, adopt the measuring method in heat insulating block gap: first all heat insulating blocks are mounted on ring-shaped steel bracket, then on warming plate, select two points, by these two points, measure the spacing between every adjacent two warming plates, according to the maximal clearance between every adjacent two warming plates, be no more than designing requirement adjustment, after adjustment, again according to the spacing between every adjacent two warming plates of described two point measurements, this spacing is met design requirement.
Described mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, its further feature is, in step B; after warming plate installation; carry out the installation of water conservancy diversion liner plate, water conservancy diversion liner plate is fixedly connected on ring-shaped steel bracket with bolt, and is used for protecting warming plate.
Described mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, its further feature is, in step C, bottom neutron shield thing support is first installed to body of wall steel corbel, suitably adjusts and makes it to meet design requirement, and then uses bolt tightening; Bottom (head) steel is installed to be supported on pre-embedded bolt or expansion bolt, the support ring that adjustment bottom (head) steel supports, apart from the absolute altitude on ground, if meet design requirement, tights a bolt, if can not meet design requirement, under the supporting leg that need to support at bottom (head) steel, add backing plate and make it to meet design requirement.
Described mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, its further feature is, in step D, neutron shield thing in bottom is installed to bottom neutron shield thing steel bracket, according to on-site actual situations, neutron shield things all except corner part can move inward, the neutron shield thing at first mount angle position during installation, but the gap between He Dui chamber, the upper strata body of wall of the bottom neutron shield thing that necessary assurance is all, lower floor's the first section of all bottom neutron shield things and the gap between the part of back meet design requirement, if can not meet the demands, need to carry out reaming to the bolt hole of bottom neutron shield thing steel bracket, make it to meet the demands, water conservancy diversion liner plate or warming plate are installed upper to the support of bottom (head) steel, are first installed into mouth of a river warming plate to bottom (head) steel and support above, then bottom (head) fair water fin to bottom (head) steel is installed and is supported above, then at corresponding water conservancy diversion liner plate skin, bottom (head) warming plate is installed respectively.
Described mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, its further feature is, in step e, upper neutron shielding thing support is first installed to the steel corbel on reactor cavity body of wall, upper neutron shielding thing is installed again, guarantee gap between all upper neutron shielding things and heap chamber body of wall and and pressure vessel between gap all meet design requirement; Then ozzle root warming plate is installed, is guaranteed that all warming plates install according to design attitude, then mounting pipe mouth position steel supports, ozzle and top warming plate are finally installed.
The present invention adopted before pressure vessel is installed, by bracket, heat-insulation layer is fixed on to method on reactor cavity body of wall, after reactor pressure vessel is installed, the layering of metallic reflection formula heat-insulation layer, the piecemeal at ozzle and bottom (head) position are successively hung in to heap chamber, the ozzle and the bottom (head) surrounding that with substep, are arranged on reactor pressure vessel, solved previously described prior art shortcoming like this.First, heat-insulation layer is directly installed on reactor cavity body of wall, and without being directly connected with pressure vessel barrel, all reactor pressure vessel cylindrical shell heat-insulation layer installment works were all carried out before pressure vessel is installed, and did not take the main line progress of Nuclear Power Station; Secondly heat-insulation layer layering, piecemeal successively hang in heap chamber, pile cavity wall and can collide the destroyed risk of heat-insulation layer that heat-insulation layer causes while having avoided the risk of the lifting deformation effect installation accuracy that heat-insulation layer integral hoisting exists and lifting; In addition, be also very important safety problem, heat-insulation layer field engineering of the present invention has been avoided carrying out construction operation around at the pressure vessel being played, thereby greatly reduces the security risk of heat-insulation layer installation exercise.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of nuclear island pressure container cylinder metallic reflection formula heat-insulation layer mounting process.
Fig. 2 is according to the outside drawing of the profile of the metallic reflection formula heat-insulation layer of nuclear island pressure container cylinder metallic reflection formula heat-insulation layer mounting process of the present invention.
Embodiment
Below by an embodiment, mounting process of the present invention is described, it should be noted in the discussion above that the following examples are only of the present invention illustrating, but not limitation of the present invention.
Shown in Fig. 2 is that nuclear island pressure vessel metallic reflection formula heat-insulation layer installs, and the diagrammatic cross-section that also installs of reactor pressure vessel and reactor core wherein 100.Heat-insulation layer 102 is arranged in reactor cavity 103, and the internal layer of heat-insulation layer 102 is comprised of stainless steel diversion liner plate, and skin is stainless steel warming plate.Heat-insulation layer 102 around whole pressure vessel 101 and pressure vessel (RV) pipe arrangement ozzle 110 around forming.It is cylinder-shaped that heat-insulation layer is, and is antidetonation 2 kind equipments, non-nuclear safety relevant device.Heat-insulation layer 102 is metallic reflection formula heat-insulation layer.What in Fig. 2, Reference numeral 112 indicated is pore.
As shown in Figure 1, in step 1, in reactor cavity (the CA04 module of AP1000 system) inside, set up suitable framing scaffold, utilize the absolute altitude line of reactor cavity metope and metope perpendicular line to emit steel corbel mounting wheel profile.
In step 2, steel corbel and ring-shaped steel bracket are installed, steel corbel has multilayer, ringwise step by step, ring-shaped steel bracket is bolted on corresponding one deck steel corbel, in one embodiment of this invention each layer of steel corbel, totally 8 layers of steel corbel and 6 layers of steel bracket, in other embodiments of the invention, can carry out number of plies adjustment according to actual conditions, be not limited only to this.
Utilize framing scaffold, with tightrope, steel corbel is pulled to corresponding absolute altitude position, adjust steel corbel position and make it to overlap with the outline line of reactor cavity metope, first spot welding is fixed, then checks with tape measure, after the passed examination of installation site, and pre-installation ring-shaped steel bracket.
After ring-shaped steel bracket pre-installation, whether the vertical outer edge of inspection ring-shaped steel bracket to the distance of pressure vessel center line can meet design requirement in adjustable extent.If can meet, by welding requirements, steel corbel be carried out to full weld operation.If ring-shaped steel bracket can not meet in adjustable extent, must to steel corbel base plate jump a queue backing plate, repair a die, ring-shaped steel bracket carried out to reaming etc. in order to revise ring-shaped steel bracket, ring-shaped steel bracket is met the demands in adjustable extent, then by welding requirements, steel corbel is carried out to full weld operation.Until all steel corbels, after all full weld finishes, formally ring-shaped steel bracket is carried out to adjustment in place, the vertical outer edge that makes steel bracket to the distance of pressure vessel center line meets design requirement, and then tights a bolt, and fixes ring-shaped steel bracket.The nose situation occurring for ring-shaped steel bracket can utilize the additive methods such as jack, lifting jack to carry out cold sizing to it, to meet installation requirement.
In step 3, cylindrical shell warming plate (warming plate of corresponding pressure shell part) and water conservancy diversion liner plate are installed.
Before warming plate and water conservancy diversion liner plate are installed, to once cleaning thoroughly in reactor cavity chamber, set up clear area.According to actual installation requirements, warming plate is transported to reactor cavity chamber interior.
Warming plate is transported to corresponding absolute altitude position, is linked in sequence together, determine the concrete measuring method in adjacent two heat insulating block gaps: the measuring method in heat insulating block gap: the gap that substitutes rear end warming plate by surveying warming plate front end spacing.First all heat insulating blocks are mounted on ring-shaped steel bracket, then on warming plate, select two points, by these two points, measure the spacing between every adjacent two warming plates, according to the maximal clearance between every adjacent two warming plates, be no more than designing requirement adjustment, after adjustment again according to the spacing between every adjacent two warming plates of described two point measurements, this spacing is met design requirement, and all warming plates that utilize spring shackle to connect do not need measurement clearance.
After warming plate installation, carry out the installation of water conservancy diversion liner plate, water conservancy diversion liner plate is fixedly connected with bolt, at every wall direction with steel tape inspection and regulate water conservancy diversion liner plate to the distance of pressure vessel center line to make it reach design load.After meeting tolerance, tighten all bolts.
In step 4, bottom neutron shield thing steel bracket is installed
16 neutron screen steel bracket MKLNS2-B (MKLNS2-B is product type) are connected on 8 groups of neutron shield thing steel bracket MKLNS2-A (MKLNS2-A is product type) with bolt.After assembling, one group of neutron shield thing assembly is wherein winched to steel corbel (installing in step 2) absolute altitude in place with two groups of tightropes, regulate tightrope, make each bolt hole of neutron shield thing assembly and the bolt hole of steel corbel corresponding one by one, with bolt, tighten in advance, connect into integral body.
In step 5, with tightrope, by bottom (head) water conservancy diversion liner plate MK310, (MK310 is product type to the additive method such as artificial in order, the water conservancy diversion liner plate of corresponding pressure container bottom end socket) be transported to corresponding position, then with bolt, water conservancy diversion liner plate MK310 is connected to the lower bolt hole on cylindrical shell orlop water conservancy diversion liner plate (being aforementioned mounted water conservancy diversion liner plate orlop), on the bolt hole of orlop steel corbel front end, recycling bolt is fixed.
In step 6, after reactor pressure vessel is in place, the gap between pressure vessel and water conservancy diversion liner plate is tested, such as using other speciality tools such as logical ball (Go Gage).
In step 7, neutron shield thing in bottom is installed to bottom neutron shield thing steel bracket (being fixed on reactor cavity 103 bottoms), according to on-site actual situations, all neutron shield things can move inward (note: the neutron shield thing of corner part can not move), the neutron shield thing at first mount angle position when every face wall body is installed, but the gap between He Dui chamber, the upper strata body of wall of the bottom neutron shield thing that necessary assurance is all, gap between lower floor's the first section of all bottom neutron shield things (near pressure vessel position) and back part (near heap body of wall position, chamber) meets design requirement, if can not meet the demands, need to carry out reaming to the bolt hole of bottom neutron shield thing steel bracket, make it to meet the demands.
Water conservancy diversion liner plate or warming plate to bottom (head) steel is installed to be supported on (being fixed on reactor cavity 103 bottoms).First be installed into mouth of a river warming plate to bottom (head) steel and support above, in installation process, will guarantee that the hook of spring shackle all connects, and will guarantee that the hinged door installation of water delivering orifice is suitable, and can freely open.Bottom (head) fair water fin to bottom (head) steel is installed and is supported above, guarantee that gap meets design requirement, then at corresponding water conservancy diversion liner plate skin, bottom (head) warming plate is installed respectively, must guarantee that the hook of all spring shackles all connects.
In step 8, upper neutron shielding thing support is first installed (to be installed to steel corbel in step 2, be positioned at the top of reactor cavity 103) on, upper neutron shielding thing is installed again, is guaranteed that gap between all upper neutron shielding things and heap chamber body of wall and the gap between reactor pressure vessel all meet design requirement.Then ozzle root warming plate is installed and to steel bracket, (is fixed on the body of wall respective tube mouth position of reactor cavity 103), guarantee that all warming plates install according to design attitude, mounting pipe mouth position steel supports to reactor cavity 103 bodies of wall again, guarantee the spacing uniformity between all steel brackets, the supporting ozzle of last setting pressure container and installation top warming plate are to the steel bracket on the body of wall top of reactor cavity 103.
In step 9, after all installment works finish, should remove in time construction rubbish, chamber interior clean room is thoroughly swept, to reach the requirement of C level cleanliness.
Claims (7)
1. mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island, is characterized in that, comprises
Step 1), before reactor pressure vessel is installed, successively hangs in heap chamber by the layering of metallic reflection formula heat-insulation layer, the piecemeal at the cylindrical shell position of pressure vessel, with substep, is arranged on the reactor cavity body of wall at reactor pressure vessel place;
Step 2), after reactor pressure vessel is installed, the layering of metallic reflection formula heat-insulation layer, the piecemeal at the ozzle of pressure vessel and bottom (head) position are successively hung in to heap chamber, with substep, be arranged on ozzle and the bottom (head) surrounding of reactor pressure vessel; Wherein, step 1) comprises:
Composite steel bracket is installed to reactor cavity body of wall in A, cylindrical shell position, and every layer of steel corbel, along an annular substep, then installed respectively ring-shaped steel bracket on corresponding composite steel bracket; And
B, installation warming plate, to ring-shaped steel bracket, are then installed water conservancy diversion liner plate at the internal layer of warming plate, and water conservancy diversion liner plate is fixed on ring-shaped steel bracket;
In step 1) and step 2) between also comprise: before reactor pressure vessel is in place or bottom neutron shield thing steel bracket is installed afterwards;
Step 2) comprise
C, installation bottom (head) steel support, and bottom neutron shield thing steel bracket is mounted on body of wall steel corbel, and bottom (head) steel supports and is mounted on the pre-embedded bolt or expansion bolt on ground;
D, installation bottom neutron shield thing are to neutron shield thing steel bracket; Water conservancy diversion liner plate or warming plate to bottom (head) steel is installed and is supported above, every layer of water conservancy diversion liner plate or warming plate, along an annular substep, will be installed warming plate respectively at corresponding water conservancy diversion liner plate skin; And
E, mounting pipe mouth portion insulation construction, comprise upper neutron shielding thing support, upper neutron shielding thing and top warming plate be installed.
2. mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island as claimed in claim 1, it is characterized in that, in steps A, first spot welding fixedly steel corbel to reactor cavity body of wall precalculated position, confirm after the passed examination of installation site, pre-installation ring-shaped steel bracket is to steel corbel, after ring-shaped steel bracket pre-installation, whether the vertical outer edge of inspection ring-shaped steel bracket to the distance of pressure vessel center line can meet design requirement in adjustable extent, if can meet, steel corbel is carried out to full weld operation; If ring-shaped steel bracket can not meet in adjustable extent, to steel corbel base plate jump a queue backing plate, repair a die, ring-shaped steel bracket carried out to reaming, in order to revise ring-shaped steel bracket, ring-shaped steel bracket is met design requirement in adjustable extent, and then steel corbel is carried out to full weld operation; Until all steel corbels, after all full weld finishes, formally ring-shaped steel bracket is adjusted, the vertical outer edge that makes ring-shaped steel bracket to the distance of pressure vessel center line meets design requirement, and then with bolt, ring-shaped steel bracket is fixed on steel corbel.
3. mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island as claimed in claim 1, it is characterized in that, in step B, adopt the measuring method in heat insulating block gap: first all heat insulating blocks are mounted on ring-shaped steel bracket, then on warming plate, select two points, by these two points, measure the spacing between every adjacent two warming plates, according to the maximal clearance between every adjacent two warming plates, be no more than designing requirement adjustment, after adjustment, again according to the spacing between every adjacent two warming plates of described two point measurements, this spacing is met design requirement.
4. mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island as claimed in claim 1, is characterized in that, in step B; after warming plate installation; carry out the installation of water conservancy diversion liner plate, water conservancy diversion liner plate is fixedly connected on ring-shaped steel bracket with bolt, and is used for protecting warming plate.
5. mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island as claimed in claim 1, is characterized in that, in step C, bottom neutron shield thing support is first installed to body of wall steel corbel, suitably adjusts and makes it to meet design requirement, and then uses bolt tightening; Bottom (head) steel is installed to be supported on pre-embedded bolt or expansion bolt, the support ring that adjustment bottom (head) steel supports, apart from the absolute altitude on ground, if meet design requirement, tights a bolt, if can not meet design requirement, under the supporting leg that need to support at bottom (head) steel, add backing plate and make it to meet design requirement.
6. mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island as claimed in claim 1, it is characterized in that, in step D, neutron shield thing in bottom is installed to bottom neutron shield thing steel bracket, according to on-site actual situations, neutron shield things all except corner part can move inward, the neutron shield thing at first mount angle position during installation, but the gap between He Dui chamber, the upper strata body of wall of the bottom neutron shield thing that necessary assurance is all, lower floor's the first section of all bottom neutron shield things and the gap between the part of back meet design requirement, if can not meet the demands, need to carry out reaming to the bolt hole on bottom neutron shield thing steel bracket, make it to meet the demands,
Water conservancy diversion liner plate or warming plate are installed upper to the support of bottom (head) steel, are first installed into mouth of a river warming plate to bottom (head) steel and support above, then bottom (head) fair water fin to bottom (head) steel is installed and is supported above, then at corresponding water conservancy diversion liner plate skin, bottom (head) warming plate is installed respectively.
7. mounting process for metal reflective heat-insulation layers of pressure vessel of nuclear island as claimed in claim 1, it is characterized in that, in step e, upper neutron shielding thing support is first installed to the steel corbel on reactor cavity body of wall, upper neutron shielding thing is installed again, guarantee gap between all upper neutron shielding things and heap chamber body of wall and and pressure vessel between gap all meet design requirement; Then ozzle root warming plate is installed, is guaranteed that all warming plates install according to design attitude, then mounting pipe mouth position steel supports, ozzle warming plate and top warming plate are finally installed.
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| CN104141373B (en) * | 2013-05-07 | 2016-12-28 | 中国核工业二四建设有限公司 | A kind of adjusting apparatus being applied to nuclear island Leak-tight liner |
| CN105427902B (en) * | 2015-11-05 | 2019-12-13 | 中国核电工程有限公司 | Direct evaporation type passive self-cooling guide plate |
| CN107093472B (en) * | 2017-05-03 | 2019-03-01 | 中国核工业第五建设有限公司 | The assemble method of steel containment vessel and its end socket in AP1000 nuclear power station |
| CN107919174B (en) * | 2017-11-17 | 2019-07-23 | 中国核工业第五建设有限公司 | Insulating layer installation method in the middle part of AP1000 reactor pressure vessel |
| CN112037955B (en) * | 2020-08-20 | 2023-03-10 | 中国核工业第五建设有限公司 | Method for installing metal heat-insulating layer of reactor pressure vessel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3928133A (en) * | 1972-04-26 | 1975-12-23 | Siemens Ag | Biological shield for a nuclear reactor |
| GB1458730A (en) * | 1973-07-27 | 1976-12-15 | Siemens Ag | Nuclear reactor installation |
| CN101577145A (en) * | 2008-05-07 | 2009-11-11 | 中广核工程有限公司 | Mounting method for insulating layer of nuclear reactor pressure vessel |
-
2011
- 2011-12-30 CN CN201110456967.7A patent/CN102522126B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3928133A (en) * | 1972-04-26 | 1975-12-23 | Siemens Ag | Biological shield for a nuclear reactor |
| GB1458730A (en) * | 1973-07-27 | 1976-12-15 | Siemens Ag | Nuclear reactor installation |
| CN101577145A (en) * | 2008-05-07 | 2009-11-11 | 中广核工程有限公司 | Mounting method for insulating layer of nuclear reactor pressure vessel |
Non-Patent Citations (4)
| Title |
|---|
| F.Bremer.Multi-layer (double-wall) prestressed concrete pressure vessel.《NUCLEAR ENGINEERING AND DESIGN》.1967,第5卷(第2期),183-190页. |
| Multi-layer (double-wall) prestressed concrete pressure vessel;F.Bremer;《NUCLEAR ENGINEERING AND DESIGN》;19670331;第5卷(第2期);183-190页 * |
| 基于非能动***功能可靠性的IVR-ERVC保温层几何优化与可靠性评估;谭国成 等;《原子能科学技术》;20110331;第45卷(第3期);307-313页 * |
| 谭国成 等.基于非能动***功能可靠性的IVR-ERVC保温层几何优化与可靠性评估.《原子能科学技术》.2011,第45卷(第3期),307-313页. |
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