CN115036052B - Nuclear power plant main container assembly device and method - Google Patents
Nuclear power plant main container assembly device and method Download PDFInfo
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- CN115036052B CN115036052B CN202210685921.0A CN202210685921A CN115036052B CN 115036052 B CN115036052 B CN 115036052B CN 202210685921 A CN202210685921 A CN 202210685921A CN 115036052 B CN115036052 B CN 115036052B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000003032 molecular docking Methods 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 17
- 229910002804 graphite Inorganic materials 0.000 description 15
- 239000010439 graphite Substances 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 210000001503 joint Anatomy 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000003758 nuclear fuel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 150000004673 fluoride salts Chemical class 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- G21C19/20—Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel
- G21C19/207—Assembling, maintenance or repair of reactor components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
-
- 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
- G21C19/02—Details of handling arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
提供一种用于组装核电站主容器的核电站主容器组装装置，该装置包括底座、稳固件、多个支撑件和调节件。底座用于承载主体；稳固件用于将主体与底座固定；多个支撑件用于支撑顶部；调节件用于调整部分支撑件的高度，进而调整顶部的高度和水平度，以使顶部与主体对齐。上述组装装置能够实现核电站主容器内部部件的安装、整体对接以及垂直状运输过程。还提供一种核电站主容器组装方法。
Provided is a nuclear power plant main container assembly device for assembling a nuclear power plant main container, the device comprising a base, a stabilizing member, a plurality of supporting members and an adjusting member. The base is used to carry a main body; the stabilizing member is used to fix the main body to the base; the plurality of supporting members are used to support the top; the adjusting member is used to adjust the height of some supporting members, and then adjust the height and level of the top so that the top is aligned with the main body. The above-mentioned assembly device can realize the installation, overall docking and vertical transportation process of the internal components of the nuclear power plant main container. Also provided is a nuclear power plant main container assembly method.
Description
Technical Field
The invention relates to the field of building technology, in particular to the field of assembling main containers of nuclear power stations.
Background
The nuclear power station main container belongs to the main equipment of the fourth generation reactor nuclear energy system. The diameter of a main container of a nuclear power station of a typical model is 2.37m, the appearance is of an upper-lower ellipsoidal seal head structure, the height is 3.8m, and the wall thickness of a cylinder body is 30mm. The internal equipment of the main container installed in the assembly stage mainly comprises graphite ceramic components, steel pressing components, lower metal supports, heat exchangers and the like.
The pressure vessel of the conventional pressurized water reactor nuclear island reactor does not need to be internally provided with an item, and the main vessel of the nuclear power station needs to be assembled with the internal equipment before entering the nuclear island, so that a set of matched special tools and matched processes are needed to meet the requirement of assembling the internal equipment of the main vessel in a vertical state, and the main vessel can be directly transported after the assembly is completed, so that the internal equipment cannot be damaged.
Disclosure of Invention
The invention aims to provide a main container assembling device of a nuclear power station, which can ensure the smooth assembly and transportation of a main container and improve the safety of the assembly and the transportation of the main container.
The nuclear power plant main container assembling device for achieving the purpose is used for assembling a nuclear power plant main container, and the nuclear power plant main container comprises a main body and a top. The device comprises a base, a stabilizing piece, a plurality of supporting pieces and an adjusting piece. The base is used for bearing the main body; the stabilizing piece is used for fixing the main body and the base; a plurality of supports for supporting the top; the adjusting member is used for adjusting the height of part of the supporting member, and then adjusting the height and levelness of the top part so as to align the top part with the main body.
In one or more embodiments, the stabilizing member includes a plurality of diagonal braces and a hoop for tightening the body, one end of the diagonal brace abutting the base and the other end supporting the body.
In one or more embodiments, the base includes an annular bracket for providing a cavity for receiving a bottom of the body, an annular bracket post for securing the annular bracket to the stand base, and a stand base.
In one or more embodiments, a buffer is disposed in an aperture between the annular bracket and the gantry base.
In one or more embodiments, the support member includes a vertical support column for supporting the top portion and a lateral support rod for connecting the vertical support column, and the adjustment member is connected with the vertical support column to adjust a height of the vertical support column.
In one or more embodiments, the support includes vertical support posts and lateral support bars for securing each of the vertical support posts and the anchor ear.
In one or more embodiments, the adjustment member is a hydraulic jack.
In one or more embodiments, the apparatus further comprises a lifting member for lifting the nuclear power plant main vessel.
In one or more embodiments, the body includes a flange for providing a first lifting point; the top comprises a lifting lug, and the lifting lug is used for providing a second lifting point; the nuclear power plant main container further comprises a support rod, wherein the support rod is used for connecting the top with the main body.
Another object of the present invention is to provide a method of assembling a primary container of a nuclear power plant, comprising the steps of: hoisting a main container of the nuclear power station, and embedding the bottom of the main body into the base; fixing the main body and the base by using a stabilizing piece, and installing a supporting piece; completing the installation of equipment in the main body; and hoisting the top of the main container of the nuclear power station, enabling the top to be supported by the supporting piece, adjusting the position of the top by using the adjusting piece, aligning the top with the main body, and completing the butt joint.
In one or more embodiments, the assembly device forms an integral structure with the nuclear power plant main vessel after the top is aligned with the main body for installation; and hoisting the integrated structure to finish the vertical transportation of the integrated structure.
The nuclear power station main container assembling device can realize preliminary fixation of the nuclear power station main container through the base, and can complete the assembly of internal equipment before the butt joint process is completed; in addition, the butt joint precision of the top and the main body is timely adjusted through the cooperation of the adjusting piece and the supporting piece, so that the assembly and the transportation under the vertical state are realized, the overturning is not needed, and the safety of the assembly and the transportation of the main container is improved.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description in conjunction with the accompanying drawings and embodiments, in which:
FIG. 1 is a schematic view of a nuclear power plant main vessel in place on a base.
FIG. 2 is a schematic structural view of a nuclear power plant main vessel assembly device.
Fig. 3 is a schematic view of the cooperation of the stabilizing member with the body.
Fig. 4 is a schematic view of the support member setting position.
FIG. 5 is a main vessel of a nuclear power plant schematic diagram of the assembly completion.
FIG. 6 is a flow diagram of a method of assembling a primary container of a nuclear power plant.
Sign mark description
10. Base seat
11. Annular bracket
12. Annular bracket upright post
13. Bench base
14. Buffer member
20. Main container of nuclear power station
21. Main body
22. Top part
23. Support bar
25. First hoisting point
26. Second hoisting point
30. Stabilizing piece
31. Diagonal bracing
32. Hoop
40. Support member
50. Hoisting piece
41. Vertical support column
42. Transverse support rod
131. Supporting point
217. Bottom part
218. Flange
221. Lifting lug
Detailed Description
The present invention will be further described with reference to specific embodiments and drawings, in which more details are set forth in the following description in order to provide a thorough understanding of the present invention, but it will be apparent that the present invention can be embodied in many other forms than described herein, and that those skilled in the art may make similar generalizations and deductions depending on the actual application without departing from the spirit of the present invention, and therefore should not be construed to limit the scope of the present invention in terms of the content of this specific embodiment.
It is noted that these and other figures are merely examples, which are not drawn to scale and should not be construed as limiting the scope of the invention as it is actually claimed.
The main container of nuclear power station belongs to the main equipment of the fourth generation reactor nuclear energy system, which uses new nuclear fuel, takes fluoride salt as coolant, melts natural nuclear fuel and convertible nuclear fuel in high temperature fluoride salt, and carries the nuclear fuel to circulate inside and outside the reactor. The nuclear power station main container needs to be assembled with internal equipment before entering a nuclear island, and comprises graphite ceramic components, steel pressing components, lower metal supporting pieces, heat exchangers and the like. The main container must be kept in a vertical state when assembled. The total weight of the main vessel after assembly is about 100 tons. Therefore, it is necessary to provide a special device and a matching process for the main container of the nuclear power station in the internal equipment assembly stage, so as to ensure the smooth assembly and safe transportation of the inside and the outside of the main container and improve the safety of the assembly and the transportation of the main container.
The nuclear power plant main container assembling device is used for solving the problems. Referring to fig. 5, the main vessel of the nuclear power plant includes a main body 21 and a top 22, and internal devices such as graphite ceramic parts are installed inside the main body 21 at an assembly stage.
The nuclear power plant main container assembling device is used for assembling the nuclear power plant main container 20, and as shown in fig. 1 and 2, the device comprises a base 10, a stabilizing piece 30, a plurality of supporting pieces 40 and adjusting pieces. The base 10 is used for carrying a main body 21; the stabilizer 30 is used for fixing the main body 21 and the base 10; a plurality of supports 40 for supporting the top 22; the adjustment member is used to adjust the height of the partial support member 40 and thus the height and levelness of the top 22 to align the top 22 with the main body 21.
Specifically, referring to the embodiment shown in fig. 2, the base 10 includes an annular bracket 11, an annular bracket post 12, and a gantry base 13, the annular bracket 11 being configured to provide a cavity for receiving the bottom 217 of the body, the annular bracket post 12 being configured to secure the annular bracket 11 to the gantry base 13. The ring carrier 11, ring carrier post 12, and gantry base 13 may be welded into the base 10 by means of welding before the main container is in place. After the base 10 is completed, a buffer member 14, such as a sand bag, is preferably disposed at the gap between the ring-shaped bracket 11 and the stand base 13 to provide buffer protection against damage caused by direct contact between the bottom 217 of the main container and the base 10.
The cavity is adapted to carry the bottom 217 of the body 21, preferably of ellipsoidal configuration, to fit the bottom profile of the main container. In one embodiment, the apparatus further comprises a lifting member 50 for lifting the main vessel 20 of the nuclear power plant, such as by placing the body 21 in a recess of the annular bracket 11. The body 21 comprises a flange 218, the flange 218 being adapted to provide a first lifting point 25, the first lifting point 25 being adapted to cooperate with the lifting member 50 for effecting movement of the body 21. In addition, the primary matching between the main body 21 and the base 10 can be ensured by adjusting the position of the annular bracket 11, the perpendicularity thereof and the like.
To further enhance the securement of the body 21 to the base 10, the provision of the stabilizing members 30 can enhance the securement of both. As shown in fig. 3, in one embodiment, the stabilizing member 30 includes a plurality of diagonal braces 31 and anchor ears 32, the anchor ears 32 are used to tighten the main body 21, one end of the diagonal brace 31 abuts against the base 10, and the other end supports the main body 21 to enhance the stability of the main body 21 and the base 10. Preferably, the support points of the diagonal braces 31 are located on the anchor ears 32, which can reduce additional connecting members. The number of diagonal braces 31 and hoops 32 is not limited to the number in the embodiment shown in fig. 3, as those skilled in the art will appreciate, the number of diagonal braces 31 and hoops 32 is determined by the particular support strength.
Furthermore, in some embodiments, the support 40 serves a stabilizing function in addition to supporting the weight of the top 22 and adjusting levelness. As in the embodiment shown in fig. 4, the support 40 comprises vertical support columns 41 and lateral support rods 42, the lateral support rods 42 being used to secure each vertical support column 41 and anchor ear 32. The main body 21 of the main container of the nuclear power station and the whole assembling device of the main container of the nuclear power station form a whole which can be transported through the connection of the transverse supporting rods 42.
In other embodiments, the support 40 includes vertical support columns 41 for supporting the top 22 and lateral support columns 42 for connecting each vertical support column 41. The adjusting member is coupled to the vertical support column 41 to adjust the height of the vertical support column 41. The adjusting member may be a hydraulic jack, or may be other structures capable of extending and retracting the length of the vertical support column 41.
When the plurality of vertical support columns 41 support the top 22, respectively, the heights of the plurality of vertical support columns 41 determine the levelness and height of the top 22, and thus, the levelness and height of the steel platform of the main vessel top 22 are simultaneously adjusted by adjusting the adjusting members, such as using hydraulic jacks. The lower ends of the top parts 22 are installed into the installation holes of the main body 21 one by one, so that the top parts 22 are connected and fastened with the main body 21, and the assembly of the main container of the nuclear power station is completed.
In one embodiment, the vertical support column 41 and the diagonal braces 31 are commonly connected at the same support point 131 on the gantry base 13, as shown in FIG. 2, to make the overall structure of the device simple and integral.
At this time, with the assembly device as a supporting platform, the top 22 may also be lifted by the lifting member 50 to implement the docking process. As shown in fig. 5, in one embodiment, the top 22 is a suspended component, including a lifting eye 221, the lifting eye 221 being configured to provide a second lifting point 26, the second lifting point 26 cooperating with the lifting member 50 to complete the movement of the top 22. At this time, the lower part of the top 22 is also supported by the vertical support column 41, and the vertical support column 41 and the hoisting member 50 simultaneously act on the top 22 to finish fine adjustment of the posture of the top 22. In addition, the nuclear power plant main container 20 further includes a support bar 23, and the support bar 23 is used to connect the top 22 with the main body 21. After the position of the top 22 is determined, the top 22 is connected with the main body 21 by using the supporting rod 23, and the external installation of the main container of the nuclear power station is completed.
Before the butt joint of the top 22 is completed, the constructor can use the assembly device with the main body 21 fixed as an operation platform to enter the main container for the assembly operation of the internal equipment. When the perpendicularity of the main container 20 of the nuclear power station is checked again, the installation of the internal equipment in the main container is started.
If the graphite component of the lower chamber is arranged at the bottom of the main container, the graphite component is screwed and fixed by bolts after being matched with the convex blocks on the inner wall; the lower pipeline of the heat exchanger is led into the main container in sections, sequentially passes through the graphite component of the lower chamber, is modeled by a laser measuring instrument, and the central positions of the two ends of the pipeline of the heat exchanger are adjusted; introducing core floor components the main container is fixedly installed; measuring the positions of an upper pipe orifice and a lower pipe orifice of the heat exchanger through laser modeling, calculating the machining allowance of a lower pipeline of the heat exchanger, and performing assembly welding with the heat exchanger after finishing groove machining on the lower pipe orifice of the heat exchanger; the core graphite part numbers are checked and sequentially introduced into the main vessel for installation. The reactor core graphite consists of a central polygonal graphite block and a plurality of sector graphite blocks, each layer of reactor core graphite is fixed through pins, keys and tensioning devices, and after each layer of reactor core graphite is installed, the reactor core graphite and a fixing block at the penetrating position of the heat exchanger are required to be installed and reduced; introducing the upper chamber metal part into the main container, matching with the convex blocks on the inner wall, and then introducing the upper chamber graphite part into the main container; finally, the graphite pressing device is installed and divided into an upper layer and a lower layer, the lower layer is divided into blocks, the upper layer is a whole plate, and after being matched with the convex blocks on the inner wall, the graphite pressing device is screwed and fixed by bolts and the like, so that the vertical state installation of all parts in the main body 21 is completed.
The nuclear power station main container assembling device can realize the on-site vertical state assembly of the nuclear power station main container and can also realize the installation of internal components; after the nuclear power station main container and the device integrally form an integrated structure, the main container can be transported in a vertical state without changing the state of equipment, and the internal equipment cannot be damaged, so that the safety of the assembly and transportation of the main container is improved. In addition, the device is simple and quick to integrally assemble and disassemble, can be repeatedly utilized, saves the manufacturing cost of the tool, improves the installation efficiency, and ensures no risk of equipment damage.
In combination with the above description of the main container assembly device of the nuclear power plant, it can also be understood that a method for assembling a main container of a nuclear power plant is assembled by using the main container assembly device of the nuclear power plant.
The method comprises the steps as shown in fig. 6. Firstly S1, hoisting a main container of a nuclear power station, and embedding the bottom 217 of the main body 21 into the base 10; step S2 is then carried out, using the stabilizing members 30 to fix the main body of the main vessel 20 of the nuclear power plant with the base 10 and to install the support members 40; subsequently, step S3 is performed to complete the installation of the devices in the main body 21, such as graphite ceramic parts, steel pressing parts, lower metal supports, heat exchangers, and the like; and then, step S4 is carried out, the top 22 of the main container of the nuclear power station is hoisted, the top 22 is supported by the supporting piece 40, the position of the top 22 is adjusted by using the adjusting piece, the top 22 is aligned with the main body 21, and the butt joint installation is completed.
After the top 22 is in butt joint with the main body 21, the main container of the nuclear power station and the main container assembling device of the nuclear power station form an integrated structure, at this time, step S5 can be continued, the integrated structure is hoisted, vertical transportation of the integrated structure is completed, for example, the assembled main containers are loaded and sealed together by using a special device for hoisting a crane, the assembled main containers can be unloaded at a set place by vertical transportation, finally, the lower supporting piece 40, the stabilizing piece 30 and the base 10 are dismounted, the device is dismounted, the final hoisting of the main containers can be completed in a matched manner without overturning, and the whole process of assembling, transporting and positioning and installing the main container of the nuclear power station is further realized.
The method is described below with reference to specific examples.
(1) And a cleaning area is established to control personnel, tools and equipment.
(2) Before the main container is in place, the annular bracket 11, the annular bracket upright post 12 and the rack base 13 are welded into the base 10, and a sand bag and other buffer protection is arranged on the prefabricated base 10 to prevent the main container from being in direct contact with the base 10.
(3) The main body 21 of the main container is positioned on the assembled base 10, the position of the main body and the perpendicularity thereof are adjusted by a crane, and the diagonal braces 31 and the anchor ears 32 are installed to fix the main body 21 and the base 10.
(4) The vertical support column 41 is fixed with the middle anchor ear 32 by using the transverse support rod 42, so that the whole nuclear power station main container assembling device and the main body form a whole.
(5) The constructor can use the special tool of the main container as an operation platform to enter the main container for the assembly operation of the internal equipment, and after the perpendicularity of the main container is checked, the installation of the internal equipment of the main container is started.
(6) The cover body of the main body 21 is hoisted to the main body 21 to realize the buckle closure, and then the buckle closure is welded.
(7) The steel platform of the top 22 is hoisted above the main body 21, the levelness of the steel platform of the top 22 is adjusted by adjusting a hydraulic jack on the vertical supporting column 41, and the steel platform is connected with the main body 21 by using the supporting rod 23.
(8) At this time, the assembling device and the assembled main container of the nuclear power station form an integrated structure, the integrated structure is loaded and sealed together by using the hoisting piece 50, and the main container can always maintain a vertical state in the transportation and hoisting processes. After the integrated structure is introduced into the installation area, the assembly device is dismantled, and the integrated structure can be hoisted into a nuclear island without overturning equipment, so that final installation of the main container of the nuclear power station is completed.
The nuclear power station main container assembling method can realize the assembly of the internal equipment, can directly keep the vertical transportation after the assembly is completed, does not need to change the state of the equipment, can not damage the internal equipment, and ensures the smooth assembly and safe transportation of the main container.
It should be noted that, in the foregoing description, the terms "first", "second", etc. are used to define the components, and are merely for convenience in distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and are not meant to represent primary or secondary aspects, so that the scope of the present application is not to be construed as being limited.
Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the application may be combined as suitable.
While the invention has been described in terms of preferred embodiments, it is not intended to be limiting, but rather to the invention, as will occur to those skilled in the art, without departing from the spirit and scope of the invention. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention fall within the protection scope defined by the claims of the present invention.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210685921.0A CN115036052B (en) | 2022-06-16 | 2022-06-16 | Nuclear power plant main container assembly device and method |
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| CN202210685921.0A CN115036052B (en) | 2022-06-16 | 2022-06-16 | Nuclear power plant main container assembly device and method |
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| CN116534706B (en) * | 2023-04-27 | 2025-09-02 | 中国能源建设集团浙江火电建设有限公司 | A device for supporting and disassembling nuclear power equipment without lifting points and its operation method |
| CN118701483A (en) * | 2024-07-31 | 2024-09-27 | 中国核工业二三建设有限公司 | Heavy equipment vertical transfer auxiliary device |
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| JP3679881B2 (en) * | 1997-02-17 | 2005-08-03 | 三菱重工業株式会社 | Stud bolt handling equipment |
| CN102169736B (en) * | 2011-01-19 | 2013-01-23 | 中国核工业第五建设有限公司 | Installing method for main pipeline of coolant system of nuclear power station |
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