CN111776137A - Installation device and installation method for marine nuclear power platform equipment gate - Google Patents
Installation device and installation method for marine nuclear power platform equipment gate Download PDFInfo
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- CN111776137A CN111776137A CN202010621440.4A CN202010621440A CN111776137A CN 111776137 A CN111776137 A CN 111776137A CN 202010621440 A CN202010621440 A CN 202010621440A CN 111776137 A CN111776137 A CN 111776137A
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- sliding block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- Architecture (AREA)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention relates to a device and a method for installing a gate of an ocean nuclear power platform device, wherein the device comprises the following components: the guide rail is fixed on a ship body of the marine nuclear power platform; the lifting device comprises a portal for fixing an equipment gate above the reactor refueling port, a sliding block in sliding fit with the guide rail, and a jacking piece, one end of the jacking piece is fixed with the portal, the other end of the jacking piece is fixed with the sliding block, and the jacking piece is used for driving the portal to move up and down; and the traction device is connected with the sliding block and used for drawing the lifting device to slide along the guide rail to drive the equipment gate to move into or out of the region of the reactor material changing port. According to the installation device and the installation method of the marine nuclear power platform equipment gate, the equipment gate can be opened and installed under the swinging working condition of the marine nuclear power platform, the operation precision is high, and the collision risk is low.
Description
Technical Field
The invention relates to the field of offshore floating nuclear power stations, in particular to a device and a method for installing a gate of an offshore nuclear power platform device.
Background
At present, an ocean nuclear power platform is an energy supply ship/platform using nuclear energy as primary energy, and can operate in a designated place for a long time or move to another place as required, a nuclear fuel assembly needs to be replaced after a reactor runs for a period, and when the reactor is reloaded, an equipment gate needs to be accurately opened and closed.
In the related technology, a method for hoisting an ocean nuclear power platform equipment gate comprises the following steps: the lifting lugs are mounted on the top surface of the equipment gate, a steel wire rope connected through a crane acts on the lifting lugs to complete lifting and lowering of the equipment gate in place, an upper end connecting piece used for completing lifting and lowering of the equipment gate in place and a lower end power piece fixedly connected with the upper end connecting piece are further arranged on the equipment gate, and the lower end power piece provides power for downward mounting and upward dismounting for the equipment gate through the upper end connecting piece.
However, the marine nuclear power platform generally changes materials at sea, and can meet waves at any time, the marine nuclear power platform can swing along with the waves, and the equipment gate is hoisted through a steel wire rope connected with a crane under the condition of swinging, so that the equipment gate at the tail end of the steel wire rope is easy to shake and cannot be accurately positioned with a reactor material changing port, the installation precision is low, and meanwhile, the collision risk caused by swinging of the equipment along with a steel wire rope sling in the hoisting process is high.
Disclosure of Invention
The embodiment of the invention provides an installation device and an installation method of an ocean nuclear power platform equipment gate, and aims to solve the problems that in the related art, the installation precision is low and the collision risk is high when a crane is connected with a steel wire rope to hoist the equipment gate under the condition of swinging.
In a first aspect, a device for installing a gate of an ocean nuclear power platform equipment is provided, which comprises: the guide rail is fixed on a ship body of the marine nuclear power platform; the lifting device comprises a portal for fixing an equipment gate above the reactor refueling port, a sliding block in sliding fit with the guide rail, and a jacking piece, one end of the jacking piece is fixed with the portal, the other end of the jacking piece is fixed with the sliding block, and the jacking piece is used for driving the portal to move up and down; and the traction device is connected with the sliding block and used for drawing the lifting device to slide along the guide rail to drive the equipment gate to move into or out of the region of the reactor material changing port.
In some embodiments, a sleeve is fixed to one end of the gantry, the sleeve is sleeved on a guide post fixed to the slider, the diameter of the sleeve is larger than that of the guide post, and the sleeve can move up and down along the guide post.
In some embodiments, an upper baffle is fixedly arranged on the outer surface of the sleeve, the upper end of the jacking member is connected with the upper baffle, the sliding block is fixedly provided with a lower baffle, and the lower end of the jacking member is connected with the lower baffle.
In some embodiments, the jacking piece is a jacking hydraulic oil cylinder, and the gantry is driven to move up and down by extending or contracting the jacking hydraulic oil cylinder.
In some embodiments, the guide rail includes a circular rail matched with the sliding block, the circular rail is fixed on the ship body through a pillar, and two ends of the circular rail are respectively provided with a limiting block for limiting the displacement of the sliding block.
In some embodiments, the traction device comprises a winch and a fixed pulley at opposite ends of the guide rail, and a chain connecting the winch and the fixed pulley; the winch drives the chain to move around the fixed pulley, and the chain is connected with the sliding block to drive the sliding block to slide on the guide rail.
In a second aspect, a method for installing the installation device of the marine nuclear power platform equipment gate is provided, and the method comprises the following steps: fixing the equipment gate to the portal; operating the traction device to enable the sliding block to move along the guide rail, and driving the equipment gate to move right above the material changing area by the lifting device; operating the jacking piece to enable the portal to drive the equipment gate to move downwards to be tightly attached to a lower flange around the reactor refueling port; and installing a bolt between the equipment gate and the lower flange.
In some embodiments, the fixing the device gate to the portal specifically includes: and welding the equipment gate and the connecting plate on the portal into a whole.
In some embodiments, the operating the traction device to move the sliding block along the guide rail, and the lifting device drives the equipment gate to move right above the material changing area specifically includes: the traction device is provided with a chain connected with the sliding block, the chain is dragged to drive the sliding block to move towards the direction of a material changing area, and the sliding block drives the door frame to move towards the direction of the material changing area.
In some embodiments, a sleeve is fixed at the lower end of the gantry, a guide post is fixed at the upper end of the sliding block, the sleeve is sleeved on the guide post, and the diameter of the sleeve is larger than that of the guide post; when the portal drives the equipment gate to move downwards, the sleeve moves downwards along the guide post.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a device and a method for installing an equipment gate of an ocean nuclear power platform, wherein the equipment gate is fixed on a portal, the portal can be driven by a jacking piece to move up and down, and then the equipment gate is driven to move up and down, so that the equipment gate can be separated from or closed with a reactor refueling port, a slide block can move on a guide rail by the traction of a traction device, the slide block can drive the portal to move along the axis of the guide rail, so that the equipment gate can be moved into or out of a refueling area of a reactor, the guide rail is fixed on a hull of the ocean nuclear power platform, a lifting device is directly arranged on the guide rail, no rope is arranged in the middle, and when waves occur at sea, the guide rail and the lifting device are both relatively static with the ocean nuclear power platform, the portal can not receive the influence of wave and with the relative displacement takes place for ocean nuclear power platform, consequently, the equipment gate is installing extremely during the reactor reloads mouth, the equipment gate can not rock for the reactor reloads mouth, makes equipment gate installation accuracy is high, and the collision risk is low.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic front view of a device for installing a gate of an ocean nuclear power platform equipment according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a lifting device and a guide rail of a device for installing a gate of an ocean nuclear power platform equipment according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a device for installing a gate of an offshore nuclear power platform installation according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an installation apparatus for an equipment gate of an offshore nuclear power platform according to an embodiment of the present invention after the equipment gate is lifted;
FIG. 5 is a schematic structural diagram of the installation apparatus for installing the equipment gate of the marine nuclear power platform, which is provided by the embodiment of the present invention, for moving the equipment gate out of the refueling area;
FIG. 6 is a schematic front view of a guide rail of a device for installing a gate of an ocean nuclear power platform facility, according to an embodiment of the present invention;
FIG. 7 is a schematic front view of a towing arrangement of a device for installing a gate of an offshore nuclear power platform installation according to an embodiment of the invention.
In the figure: 1. a guide rail; 11. a circular rail; 12. a pillar; 13. a limiting block; 2. a lifting device; 21. a slider; 22. a jacking piece; 23. a sleeve; 24. a gantry; 25. an upper baffle plate; 26. a lower baffle plate; 27. a connecting plate; 28. a guide post; 3. a traction device; 31. a winch; 32. a fixed pulley; 33. a chain; 4. an equipment gate; 5. a reactor material changing port; 51. and a lower flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides an installation device and an installation method of an ocean nuclear power platform equipment gate, which can solve the problems that in the related art, the installation precision is low and the collision risk is high when a crane is connected with a steel wire rope to hoist the equipment gate under the condition of swinging.
Referring to fig. 1 and 2, an installation apparatus for a marine nuclear power platform equipment gate according to an embodiment of the present invention includes: the guide rail 1 is fixed on a ship body of the marine nuclear power platform; the lifting device 2 is used for lifting the equipment gate 4 above the reactor material changing port 5, and the lifting device 2 can slide on the guide rail 1; and a traction device 3 for drawing the lifting device 2 to slide on the guide rail 1.
Referring to fig. 2, in some alternative embodiments, the reactor refueling port 5 may be disposed on a deck surface of the marine nuclear power platform, and a ring of lower flange 51 is disposed around the reactor refueling port 5, and the lower flange 51 is used for fixing the equipment gate 4 when the equipment gate 4 needs to be closed with the reactor refueling port 5.
Referring to fig. 1 and 6, in some embodiments, the guide rail 1 may include a plurality of struts 12 vertically fixed on the surface of the ship body, the plurality of struts 12 are arranged in a row at intervals in parallel, a circular rail 11 may be fixed on the top of the strut 12, the circular rail 11 may connect the plurality of struts 12 along the arrangement direction of the struts 12, and the circular rail 11 is preferably cylindrical, in other embodiments, the circular rail 11 may also be set to any shape, and two ends of the circular rail 11 may be respectively provided with a limiting block 13, in this embodiment, one guide rail 1 is respectively disposed on two opposite sides of the reactor refueling port 5, and the two guide rails 1 are arranged in parallel, and both the guide rails 1 extend from the adjacent side position of the reactor refueling port 5 to the direction far away from the reactor refueling port 5.
Referring to fig. 1 and 2, in some alternative embodiments, the lifting device 2 may include a door frame 24, the door frame 24 may have an overall length larger than the diameter of the reactor refueling port 5, so that the door frame 24 may span over the reactor refueling port 5, the door frame 24 may extend downward to form two connecting plates 27, the equipment gate 4 may be welded to the connecting plates 27, so as to fix the equipment gate 4 to the door frame 24, opposite ends of the door frame 24 may be respectively sleeved with sleeves 23, the sleeves 23 may be hollow and may be welded to the surface of the door frame 24, the sleeves 23 extend downward to form an inner cavity beyond the lower end surface of the door frame 24, and the outer surface of the sleeves 23 may be welded with a horizontally arranged upper baffle 25.
Referring to fig. 1 and 2, in some embodiments, the lifting device 2 may further include a sliding block 21 mounted on each circular rail 11, the sliding block 21 is slidably engaged with the circular rail 11, and the sliding block 21 is preferably configured to be a circular arc shape matching the circular column of the circular rail 11, the circular column of the circular rail 11 has a circular cross section, the arc length of the sliding block 21 on the cross section exceeds half of the circular arc length, so that the sliding block 21 and the circular rail 11 have a large area of contact, the sliding block 21 is not easy to derail, the stoppers 13 at two ends of the circular rail 11 may limit the displacement of the sliding block 21 to prevent the sliding block 21 from sliding out of the circular rail 11, a guide post 28 may be welded to the top surface of the sliding block 21, the guide post 28 is disposed corresponding to the sleeve 23, and the guide post 28 extends into the inner cavity, the diameter of the sleeve 23 is slightly larger than that of the guide post 28, so that the sleeve 23 can move up and down along the axial direction of the guide post 28, a lower baffle 26 can be respectively and fixedly arranged on two opposite sides of the slide block 21, the lower baffle 26 is preferably welded on the surface of the slide block 21, each lower baffle 26 is respectively and correspondingly arranged with each upper baffle 25 up and down,
referring to fig. 1, 2 and 4, in some alternative embodiments, the lifting device 2 may further include a plurality of lifting members 22, each of the lifting members 22 is fixed between one of the upper and lower blocking plates 25 and 22 is preferably welded to the upper blocking plate 25, a lower end of each of the lifting members 22 is preferably welded to the lower blocking plate 26, the upper blocking plate 25 can be raised or lowered by extending or retracting the lifting member 22, the sleeve 23 is welded to the mast 24 due to the welding of the upper blocking plate 25 to the sleeve 23, so that the mast 24 can be moved up and down by extending or retracting the lifting member 22, thereby moving the equipment gate 4 up and down, and when the equipment gate 4 is lifted, the equipment gate 4 can be separated from the top surface of the lower flange 51, when the equipment gate 4 is lowered, the equipment gate 4 can be attached to the top surface of the lower flange 51, and in the embodiment of the present invention, the jacking member 22 is preferably a jacking hydraulic cylinder.
Referring to fig. 1, 3 and 7, in some embodiments, the traction device 3 may include a winch 31 and a fixed pulley 32 at opposite ends of the circular rail 11, the winch 31 and the fixed pulley 32 may both be fixed on the hull, and a chain 33 connecting the winch 31 and the fixed pulley 32, the chain 33 may be arranged in parallel with the circular rail 11, and the chain 33 may be fixed with the sliding block 21, in this embodiment, the sliding block 21 is preferably welded and fixed with the chain 33, one end of the chain 33 is arranged on the winch 31, the other end of the chain 33 is wound on the fixed pulley 32, the winch 31 is used to provide power for moving the chain 33 along the circular rail 11, the chain 33 may be moved around the fixed pulley 32 at the other end, so as to drive the sliding block 21 to slide left and right on the guide rail 1, when the nuclear reactor needs to be reloaded, after the equipment gate 4 is lifted by the lifting device 2, the winch 31 can be started, the lifting device 2 is moved to the direction away from the reactor reloading port 5 by the chain 33, so that the equipment gate 4 is moved out of the reloading port area, and the winch 31 has a locking function and can fix the lifting device 2 on the guide rail 1; after the material is changed, the winch 31 is started again, the lifting device 2 is moved towards the direction close to the reactor material changing port 5 through the chain 33, so that the equipment gate 4 is moved into the position right above the reactor material changing port 5, the equipment gate 4 is lowered to the preset position on the top surface of the lower flange 51 through the lifting device 2, and the equipment gate 4 and the lower flange 51 are fixed through bolts.
Referring to fig. 1, 2 and 5, an installation method of an installation apparatus for a marine nuclear power platform equipment gate according to an embodiment of the present invention includes the following steps:
step 1: the equipment gate 4 is fixed to the gantry 24.
In some embodiments, in step 1, the equipment gate 4 may be welded and fixed to the connection plate 27 of the gantry 24.
Step 2: the traction device 3 is operated to enable the sliding block 21 to move along the guide rail 1, and the lifting device 2 drives the equipment gate 4 to move right above the material changing area.
In some alternative embodiments, in step 2, the chain 33 and the slide 21 may be welded together, and the slide 21 is pulled by the chain 33 to move on the guide rail 1, so that the slide 21 moves to the material changing area, and the slide 21 drives the door frame 24 to move to the material changing area.
And step 3: the lifting piece 22 is operated to enable the portal frame 24 to drive the equipment gate 4 to move downwards to be tightly attached to the lower flange 51 around the reactor material changing port 5.
And 4, step 4: bolts are installed between the equipment gate 4 and the lower flange 51.
In some embodiments, after step 4, when a material change is required, the step of moving the equipment gate 4 out of the material change area is the reverse of the above step, i.e. the bolts between the equipment gate 4 and the lower flange 51 are loosened, then the gantry 24 together with the equipment gate 4 is moved a distance up by the jacking piece 22, and then the equipment gate 4 is moved out of the material change area by the traction device 3.
The installation device and the installation method of the marine nuclear power platform equipment gate provided by the embodiment of the invention have the following principles:
because the equipment gate 4 is fixed on the portal frame 24, the portal frame 24 can be driven to move up and down through the jacking piece 22, and then the equipment gate 4 is driven to move up and down, the equipment gate 4 and the reactor refueling port 5 can be separated or closed, because the slide block 21 can move on the guide rail 1 through the traction of the traction device 3, the slide block 21 can drive the portal frame 24 to move along the axis of the guide rail 1, so that the equipment gate 4 can be moved into or out of the refueling area of the reactor, the guide rail 1 is fixed on the hull of the marine nuclear power platform, the lifting device 2 is directly installed on the guide rail 1, no rope is arranged in the middle, the lifting device 2 and the guide rail 1 are directly assembled by matching with marine hardware, when waves occur, the guide rail 1 and the lifting device 2 are both relatively static with the marine nuclear power platform, the gantry 24 is also not affected by waves due to the support of the jacking member 22 and is not relatively displaced with the marine nuclear power platform, so that the equipment gate 4 is installed above the reactor refueling port 5, the equipment gate 4 cannot shake relative to the reactor refueling port 5, the installation accuracy of the equipment gate 4 is high, and the collision risk is low.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a installation device of ocean nuclear power platform equipment gate which characterized in that, it includes:
the guide rail (1) is fixed on a ship body of the ocean nuclear power platform;
the lifting device (2) comprises a door frame (24) used for fixing an equipment gate (4) above a reactor material changing port (5), a sliding block (21) in sliding fit with the guide rail (1), and a jacking piece (22) with one end fixed with the door frame (24) and the other end fixed with the sliding block (21), wherein the jacking piece (22) is used for driving the door frame (24) to move up and down;
and the traction device (3) is connected with the sliding block (21) and used for drawing the lifting device (2) to slide along the guide rail (1) to drive the equipment gate (4) to move into or out of the reactor material changing port (5) area.
2. The installation apparatus of a marine nuclear power platform plant gate of claim 1, wherein:
a sleeve (23) is fixed at one end of the portal frame (24), the sleeve (23) is sleeved on a guide post (28) fixed on the sliding block (21), the diameter of the sleeve (23) is larger than that of the guide post (28), and the sleeve (23) can move up and down along the guide post (28).
3. The installation apparatus of a marine nuclear power platform plant gate of claim 2, wherein:
the outer surface of the sleeve (23) is fixedly provided with an upper baffle (25), the upper end of the jacking piece (22) is connected with the upper baffle (25), the sliding block (21) is fixedly provided with a lower baffle (26), and the lower end of the jacking piece (22) is connected with the lower baffle (26).
4. The installation apparatus of a marine nuclear power platform plant gate of claim 1, wherein:
the jacking piece (22) is a jacking hydraulic oil cylinder, and the jacking hydraulic oil cylinder extends or contracts to drive the gantry (24) to move up and down.
5. The installation apparatus of a marine nuclear power platform plant gate of claim 1, wherein:
the guide rail (1) comprises a circular rail (11) matched with the sliding block (21), the circular rail (11) is fixed on the ship body through a support column (12), and two ends of the circular rail (11) are respectively provided with a limiting block (13) for limiting the displacement of the sliding block (21).
6. The installation apparatus of a marine nuclear power platform plant gate of claim 1, wherein:
the traction device (3) comprises a winch (31) and a fixed pulley (32) which are positioned at two opposite ends of the guide rail (1), and a chain (33) for connecting the winch (31) and the fixed pulley (32);
the winch (31) drives the chain (33) to move around the fixed pulley (32), and the chain (33) is connected with the sliding block (21) and drives the sliding block (21) to slide on the guide rail (1).
7. A method of installing a device for installing a marine nuclear power platform installation gate as claimed in claim 1, comprising the steps of:
-fixing the plant gate (4) to the portal (24);
operating the traction device (3) to enable the sliding block (21) to move along the guide rail (1), and driving the equipment gate (4) to move right above the material changing area by the lifting device (2);
operating the jacking piece (22) to enable the portal (24) to drive the equipment gate (4) to move downwards to be tightly attached to a lower flange (51) around the reactor material changing port (5);
and installing bolts between the equipment gate (4) and the lower flange (51).
8. The method according to claim 7, characterized in that said fixing of said equipment gate (4) to said portal (24) comprises in particular: and welding the equipment gate (4) and a connecting plate (27) on the portal (24) into a whole.
9. The method according to claim 7, wherein said operating said traction means (3) to move said slide (21) along said guide (1) and said lifting means (2) to move said machine shutter (4) directly above the reloading area comprises:
the traction device (3) is provided with a chain (33) connected with the sliding block (21), the chain (33) is dragged to drive the sliding block (21) to move towards the direction of a material changing area, and the sliding block (21) drives the door frame (24) to move towards the direction of the material changing area.
10. The method of claim 7, wherein:
a sleeve (23) is fixed at the lower end of the portal frame (24), a guide post (28) is fixed at the upper end of the sliding block (21), the guide post (28) is sleeved with the sleeve (23), and the diameter of the sleeve (23) is larger than that of the guide post (28);
when the portal (24) drives the equipment gate (4) to move downwards, the sleeve (23) moves downwards along the guide post (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621440.4A CN111776137A (en) | 2020-06-30 | 2020-06-30 | Installation device and installation method for marine nuclear power platform equipment gate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621440.4A CN111776137A (en) | 2020-06-30 | 2020-06-30 | Installation device and installation method for marine nuclear power platform equipment gate |
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| CN111776137A true CN111776137A (en) | 2020-10-16 |
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Application publication date: 20201016 |