Lifting and translation device, vertical construction method of large modules of nuclear power plant

Abstract

The present invention provides a lifting and translation device and a method for vertically constructing large modules of a nuclear power plant. The device includes a moving mechanism and a support platform. The moving mechanism includes a self-propelled vehicle, a climbing pole, and a climbing drive unit. The support platform is used to support the large module. The climbing pole passes through the support platform, its lower end is connected to the self-propelled vehicle, and its upper end extends out of the large module. The climbing drive unit is connected to the support platform and is used to drive the support platform to rise and fall relative to the climbing pole, or to drive the climbing pole to rise and fall relative to the support platform. Utilizing this device, it is possible to realize the vertical construction of large modules of a nuclear power plant, thereby significantly improving the scale and completion of the nuclear power plant modules, thereby improving the modular design and construction level of the nuclear power plant, significantly reducing the construction period of the nuclear power plant, and improving economic efficiency.

Description

Technical Field

[0001] The present invention particularly relates to a jacking and translation device and a method for vertically constructing large modules of a nuclear power plant. Background Art

[0002] Modularization is an advanced design and construction technology. Its application to the design and construction of nuclear power plants can significantly reduce on-site construction workload, mitigate safety hazards, shorten construction periods, and lower project costs, making it an effective means of improving nuclear power plant design and construction technology. Current nuclear power plant modularization technology suffers from limited scale and incompleteness—in other words, "not large, not complete." The primary constraint on the "larger and more complete" nuclear power modules is the hoisting and placement of large modules. This is because the crane hoisting method used in modular construction of nuclear power plants is significantly affected by factors such as the lifting capacity of large crawler cranes, the crane station location, and the clearance height. As a result, the curb weight of large nuclear power plant modules has reached the lifting capacity limit of heavy cranes. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art and provide a jacking and translation device, as well as a method for vertically constructing large modules of a nuclear power plant using the jacking and translation device. The device and method can significantly improve the scale and completion of the nuclear power plant modules, thereby improving the modular design and construction level of the nuclear power plant, significantly reducing the construction period of the nuclear power plant and improving economic efficiency.

[0004] The technical solution adopted to solve the technical problem of the present invention is:

[0005] The present invention provides a lifting and translation device, which includes: a moving mechanism and a supporting platform, wherein the moving mechanism includes: a self-propelled vehicle, a climbing pole and a climbing drive unit.

[0006] The supporting platform is used to support large modules.

[0007] The climbing pole passes through the supporting platform, with its lower end connected to the self-propelled vehicle and its upper end passing through the large module. The climbing drive unit is connected to the supporting platform and is used to drive the supporting platform to rise and fall relative to the climbing pole, or to drive the climbing pole to rise and fall relative to the supporting platform.

[0008] Optionally, the climbing drive unit includes a plurality of telescopic cylinders, which are distributed around the climbing pole in an annular manner. The telescopic cylinders are fixedly connected to the support platform and provide support power for the support platform.

[0009] The telescopic cylinder repeats the action sequence of one of its fixed part and telescopic part being connected to the climbing pole, the other being disconnected from the climbing pole - the telescopic cylinder being extended and retracted - one of its fixed part and telescopic part being disconnected from the climbing pole, the other being connected to the climbing pole - the telescopic cylinder being reset, so as to raise or lower the support platform relative to the climbing pole, or to raise or lower the climbing pole relative to the support platform.

[0010] Optionally, a placement hole is provided in the support platform, the climbing pole passes through the support platform through the placement hole, and the climbing drive unit is located in the placement hole.

[0011] The present invention also provides a method for vertically assembling large modules of a nuclear power plant using the above-mentioned jacking and translation device, comprising:

[0012] S1: The lifting and translation device transports the upper level large module to the next level large module.

[0013] S2: The climbing drive unit drives the support platform to climb upward on the climbing pole until the distance between the bottom surface of the support platform and the next large module is greater than or equal to the height of a self-propelled vehicle.

[0014] S3: Lift the first row of unraised climbing poles in the forward direction of the jacking and translation device until the bottom surface of the self-propelled vehicle connected to the row of climbing poles is flush with the top surface of the next large module. The jacking and translation device moves forward until the self-propelled vehicle connected to the row of climbing poles is supported on the top surface of the next large module.

[0015] S4: Repeat step S3 until all self-propelled vehicles are supported on the top surface of the next large module;

[0016] S5: A lifting mechanism is set between the next-level large module and the previous-level large module to lift the previous-level large module to detach it from the support platform, then the climbing rod is removed and the self-propelled vehicle is connected to the support platform;

[0017] S6: The lifting and translation device moves backward until the first row of self-driving vehicles that have not been lowered in the backward direction of the lifting and translation device is suspended in the air. The climbing rod is passed through the support platform and connected to the suspended self-driving vehicle. The connection between the suspended self-driving vehicle and the support platform is released. The climbing rod is lowered until the self-driving vehicle connected to it touches the ground.

[0018] S7: Repeat step S6 until all self-propelled vehicles are on the ground, and the lifting and translation device continues to move backward until the support platform is removed from between the upper and lower large modules.

[0019] S8: The lifting mechanism retracts into the next-level large module and / or the previous-level large module, so that the previous-level large module is supported on the next-level large module.

[0020] Optionally, before step S3, the following steps are further included:

[0021] The first connecting vehicle is installed on the bottom surface of the front edge of the supporting platform and is supported on the upper-level large module.

[0022] Optionally, the step of installing a first connecting vehicle on the bottom surface of the front edge of the supporting platform and supporting it on the next large module specifically includes:

[0023] The lifting and translation device moves forward until the front edge of the support platform extends into the upper space of the next large module, and the first connecting vehicle supported on the next large module and located below the front edge of the support platform is detachably connected to the support platform.

[0024] Optionally, between step S3 and step S4, the following steps are further included:

[0025] Remove the first lap car installed on the bottom surface of the front edge of the support platform.

[0026] Optionally, in step S4, before lifting the last row of climbing poles that have not been raised in the forward direction of the jacking and translation device, the method further includes:

[0027] A second connecting vehicle is installed on the bottom surface of the supporting platform between the last two rows of climbing poles, and is supported on the next large module.

[0028] Optionally, the second connecting vehicle is installed between the last two rows of climbing poles on the bottom surface of the supporting platform and supported on the next large module, specifically comprising:

[0029] The lifting and translation device moves forward to the position on the support platform where the second trolley is to be installed and enters the upper space of the next large module, and detachably connects the second trolley supported on the next large module and located below the position on the support platform where the second trolley is to be installed to the support platform.

[0030] Optionally, between step S6 and step S7, the following steps are further included:

[0031] Remove the second hitch car installed on the bottom surface of the support platform.

[0032] Optionally, in step S7, before lowering the last row of unraised climbing poles in the forward direction of the jacking and translation device, the method further includes:

[0033] The third connecting vehicle is installed on the bottom surface of the leading edge of the supporting platform and is supported on the next level large module.

[0034] Optionally, in step S7, after all the self-driving vehicles have landed,

[0035] include:

[0036] Remove the third connecting vehicle installed on the bottom surface of the support platform.

[0037] Optionally, the top surface of the next-level large module and / or the bottom surface of the previous-level large module has a receiving groove capable of accommodating the retracted lifting mechanism.

[0038] In step S5, the jacking mechanism is provided between the next large module and the previous large module, specifically including:

[0039] A lifting mechanism is provided in the accommodating tank;

[0040] In step S8, the lifting mechanism is retracted into the next large module and / or the previous large module, which specifically includes:

[0041] The lifting mechanism retracts into the accommodating groove.

[0042] Optionally, the top surface of the upper-level large module has a first channel connected to the accommodating tank, and the lifting mechanism can be sent into the accommodating tank through the first channel, or moved out of the accommodating tank through the first channel.

[0043] The jacking and translation device and method proposed in the present invention can transform the hoisting and positioning method of large modules of nuclear power plants into a jacking and translation positioning method, thereby breaking through the limitation of crane lifting capacity on module size and weight, significantly improving the scale and completion of nuclear power plant modules, and further improving the modular design and construction level of nuclear power plants, significantly reducing the construction period of nuclear power plants, and improving economic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic structural diagram of the lifting and translation device provided in Example 1 of the present invention;

[0045] Figure 2 This is a schematic diagram of the structure of the lifting and translation device for translationally transporting large modules;

[0046] Figure 3 This is a schematic diagram of a large module being lifted by a transfer device;

[0047] Figure 4 This is a schematic diagram of the first hitchhiking vehicle after installation;

[0048] Figure 5 Schematic diagram of the front climbing pole and self-propelled vehicle being lifted;

[0049] Figure 6 This is a schematic diagram of the second hitchhiking vehicle after installation;

[0050] Figure 7 This is a schematic diagram of the placement of large modules;

[0051] Figure 8 This is a schematic diagram of a lifting mechanism lifting a large module to detach it from the supporting platform;

[0052] Figure 9 This is a schematic diagram after the climbing pole is removed;

[0053] Figure 10 This is a schematic diagram of the device being retracted until the rear bicycle is suspended in the air;

[0054] Figure 11 This is a schematic diagram of the rear climbing pole after installation;

[0055] Figure 12 This is a schematic diagram of the rear climbing pole being lowered;

[0056] Figure 13 This is a schematic diagram of the second hitchhiking vehicle after it has been dismantled;

[0057] Figure 14 This is a schematic diagram of the third hitchhiking vehicle after installation;

[0058] Figure 15 This is a schematic diagram of the front row climbing pole after installation;

[0059] Figure 16 This is a schematic diagram of the jacking and translation device retreating to the next level track;

[0060] Figure 17 This is a schematic diagram of the lifting mechanism lowering the upper-level large module onto the lower-level large module;

[0061] Figure 18 This is a schematic diagram after the jacking mechanism is removed;

[0062] Figure 19 This is a schematic diagram of the jacking mechanism installation.

[0063] In the figure: 1. Lower-level large module; 2. Climbing mechanism; 3. Upper-level large module; 4. Support platform; 5. Self-propelled vehicle; 6. Frame structure of nuclear power plant turbine building; 7. Track; 8. First connecting vehicle; 9. Lifting mechanism; 10. Telescopic cylinder; 11. Gripping gear; 12. Climbing pole; 13. Second passage; 14. First passage; 15. Second connecting vehicle; 16. Third connecting vehicle; 17. Accommodation tank. DETAILED DESCRIPTION

[0064] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of the present invention.

[0065] In the description of the present invention, it should be noted that the directions or positional relationships indicated by “upper” and the like are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience and simplification of the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0066] In the description of the present invention, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0067] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connect," "dispose," "install," "fix," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0068] The present invention provides a lifting and translation device, which includes: a moving mechanism and a supporting platform, wherein the moving mechanism includes: a self-propelled vehicle, a climbing pole and a climbing drive unit.

[0069] The supporting platform is used to support large modules.

[0070] The climbing pole passes through the supporting platform, with its lower end connected to the self-propelled vehicle and its upper end passing through the large module. The climbing drive unit is connected to the supporting platform and is used to drive the supporting platform to rise and fall relative to the climbing pole, or to drive the climbing pole to rise and fall relative to the supporting platform.

[0071] The present invention also provides a method for vertically assembling large modules of a nuclear power plant using the above-mentioned jacking and translation device, comprising:

[0072] S1: The lifting and translation device transports the upper level large module to the next level large module.

[0073] S2: The climbing drive unit drives the support platform to climb upward on the climbing pole until the distance between the bottom surface of the support platform and the next large module is greater than or equal to the height of a self-propelled vehicle.

[0074] S3: Lift the first row of unraised climbing poles in the forward direction of the jacking and translation device until the bottom surface of the self-propelled vehicle connected to the row of climbing poles is flush with the top surface of the next large module. The jacking and translation device moves forward until the self-propelled vehicle connected to the row of climbing poles is supported on the top surface of the next large module.

[0075] S4: Repeat step S3 until all self-propelled vehicles are supported on the top surface of the next large module;

[0076] S5: A lifting mechanism is set between the next-level large module and the previous-level large module to lift the previous-level large module to detach it from the support platform, then the climbing rod is removed and the self-propelled vehicle is connected to the support platform;

[0077] S6: The lifting and translation device moves backward until the first row of self-driving vehicles that have not been lowered in the backward direction of the lifting and translation device is suspended in the air. The climbing rod is passed through the support platform and connected to the suspended self-driving vehicle. The connection between the suspended self-driving vehicle and the support platform is released. The climbing rod is lowered until the self-driving vehicle connected to it touches the ground.

[0078] S7: Repeat step S6 until all self-propelled vehicles are on the ground, and the lifting and translation device continues to move backward until the support platform is removed from between the upper and lower large modules.

[0079] S8: The lifting mechanism retracts into the next-level large module and / or the previous-level large module, so that the previous-level large module is supported on the next-level large module.

[0080] Example 1:

[0081] like Figure 1 As shown, this embodiment provides a lifting and translation device, including: a moving mechanism and a supporting platform 4, the moving mechanism includes: a self-propelled vehicle 5 and a climbing mechanism 2, the climbing mechanism 2 includes a climbing rod 12 and a climbing drive unit,

[0082] The support platform 4 is used to support large modules.

[0083] The climbing pole 12 passes through the supporting platform 4, its lower end is connected to the self-propelled vehicle 5, and its upper end passes through the large module. The climbing drive part is connected to the supporting platform 4, and is used to drive the supporting platform 4 to rise and fall relative to the climbing pole 12, or drive the climbing pole 12 to rise and fall relative to the supporting platform 4.

[0084] Therefore, the jacking and translation device can be used as a transportation tool for the vertical assembly and construction of the nuclear island plant, and can transport and lift the upper-level large-scale segmented modules to the lower-level large-scale modules.

[0085] In this embodiment, the climbing drive unit includes a plurality of telescopic cylinders 10, which are distributed around the climbing pole 12 in an annular manner. The telescopic cylinders 10 are fixedly connected to the support platform 4 and provide support power for the support platform 4.

[0086] The telescopic cylinder 10 repeats the action sequence of one of its fixed part and telescopic part being connected to the climbing pole 12, the other being disconnected from the climbing pole 12 - the telescopic cylinder 10 being extended and retracted - one of its fixed part and telescopic part being disconnected from the climbing pole 12, the other being connected to the climbing pole 12 - the telescopic cylinder 10 being reset, so as to make the support platform 4 rise and fall relative to the climbing pole 12, or to make the climbing pole 12 rise and fall relative to the support platform 4.

[0087] In this embodiment, the telescopic part of the telescopic cylinder 10 is located below its fixed part. The process of the above-mentioned climbing mechanism to realize the rising of the support platform 4 relative to the climbing pole 12 is as follows: the fixed part is connected to the climbing pole 12, the telescopic part is disconnected from the climbing pole 12 - the telescopic cylinder 10 retracts - the fixed part is disconnected from the climbing pole 12, the telescopic part is connected to the climbing pole 12 - the telescopic cylinder 10 extends, and so on, thereby realizing the rising of the support platform 4 relative to the climbing pole 12.

[0088] The process of the climbing mechanism achieving the descent of the support platform 4 relative to the climbing pole 12 is opposite to the above-mentioned ascending process, and will not be described in detail here.

[0089] The process of the climbing mechanism realizing the ascent or descent of a row of climbing poles 12 relative to the support platform 4 is the same as the process of realizing the ascent or descent of the support platform 4 relative to the climbing poles 12, and will not be repeated here.

[0090] In this embodiment, the fixed portion and the telescopic portion of the telescopic cylinder 10 are both connected to the climbing pole 12 through the biting teeth 11.

[0091] In this embodiment, a placement hole is provided in the support platform 4 , the climbing pole 12 passes through the support platform 4 through the placement hole, and the climbing drive unit is located in the placement hole.

[0092] Example 2:

[0093] This embodiment provides a method for vertically assembling a large module of a nuclear power plant using the jacking and translation device of Example 1, comprising:

[0094] S1: If Figure 2 As shown, the lifting and translation device carrying the upper-level large module 3 is translated along the track 7 from the relatively low-height frame structure 6 of the first-level nuclear power plant turbine building to the relatively high-height next-level large module 1. The upper-level large module 3 and the next-level large module 1 are both part of the nuclear island building structure of the nuclear power plant, and the upper-level large module 3 is a frame structure, while the next-level large module 1 has completed casting construction.

[0095] S2: If Figure 3 As shown, the climbing drive unit drives the support platform 4 and the upper-level large module 3 it carries to climb upward on the climbing pole 12 until the distance between the bottom surface of the support platform 4 and the lower-level large module 1 is greater than or equal to the height of a self-propelled vehicle 5;

[0096] S3: If Figure 4As shown, the lifting and translation device moves forward until the front edge of the support platform 4 extends into the upper space of the next-level large module 1, and the first connecting vehicle 8 supported on the next-level large module 1 and located below the front edge of the support platform 4 is detachably connected to the support platform 4. The purpose of the first connecting vehicle 8 is to bear part of the weight of the support platform 4 and the upper-level large module 3 to prevent the device from tipping over after the first row of moving mechanisms is lifted, thereby providing conditions for retracting the first row of moving mechanisms.

[0097] S4: As Figure 5 As shown, under the support of the first connecting vehicle 8, the first row of unraised climbing poles 12 in the forward direction of the jacking and translation device is lifted until the bottom surface of the self-propelled vehicle 5 connected to the row of climbing poles 12 is flush with the top surface of the next large module 1, and the jacking and translation device moves forward until the self-propelled vehicle 5 connected to the row of climbing poles 12 is supported on the top surface of the next large module 1;

[0098] S5: Remove the first connecting vehicle 8 installed on the bottom surface of the front edge of the support platform 4;

[0099] S6: As Figure 6 As shown, step S4 is repeated until all the self-propelled vehicles 5 except the last row are supported on the top surface of the next-level large module 1; the lifting and translation device moves forward to the position where the bottom surface of the support platform 4 is located between the two last rows of climbing rods 12, and enters the upper space of the next-level large module 1, and the second connecting vehicle 15 supported on the next-level large module 1 and located below the position where the bottom surface of the support platform 4 is located between the two last rows of climbing rods 12 is detachably connected to the support platform 4, so that it supports the tail of the device, providing conditions for retracting the last-level mobile mechanism;

[0100] S7: As Figure 7 As shown, the last row of climbing poles 12 that have not been raised in the forward direction of the jacking and translation device is lifted until the bottom surface of the self-driving vehicle 5 connected to the row of climbing poles 12 is flush with the top surface of the next large module 1, and the jacking and translation device moves forward until the self-driving vehicle 5 connected to the row of climbing poles 12 is supported on the top surface of the next large module 1 and the upper large module 3 is in place;

[0101] S8: Figure 8 As shown, a lifting mechanism 9 is provided between the next-level large module 1 and the upper-level large module 3 to lift the upper-level large module 3 to separate from the support platform 4, thereby providing conditions for the withdrawal of the device;

[0102] Specifically, if Figure 19 As shown, the bottom surface of the upper large module 3 has a receiving groove 17 capable of accommodating the retracted lifting mechanism 9, and the top surface of the upper large module 3 has a first channel 14 connected to the receiving groove 17.

[0103] The lifting mechanism 9 is manually sent from the first channel 14 into the accommodating groove 17 . After being lifted, the lifting mechanism 9 abuts between the next-level large module 1 and the previous-level large module 3 .

[0104] S9: As Figure 9 As shown, the climbing pole 12 is removed and the self-propelled vehicle 5 is connected to the supporting platform 4;

[0105] S10: Figure 10 As shown, the lifting and translation device moves backward until the first row of self-propelled vehicles 5 that have not been lowered in the backward direction of the lifting and translation device are suspended in the air, providing conditions for installing the climbing pole 12;

[0106] S11: If Figure 11 As shown, the climbing pole 12 passes through the supporting platform 4 and is connected to the suspended self-propelled vehicle 5, and the connection between the suspended self-propelled vehicle 5 and the supporting platform 4 is released;

[0107] S12: Figure 12 As shown, the climbing pole 12 is lowered until the self-propelled vehicle 5 connected thereto descends to a relatively low track and provides support for the support platform, thereby providing conditions for removing the second connecting vehicle 15;

[0108] S13: If Figure 13 As shown, the second pick-up vehicle 15 is removed;

[0109] S14: Figure 14 As shown, steps S10-S12 are repeated until all self-propelled vehicles 5 except the last row in the backward direction descend to the relatively low track, and then the third connecting vehicle 16 is installed on the bottom surface of the front edge of the support platform 4 and supported on the next large module 1;

[0110] S15: Figure 15 As shown, the lifting and translation device moves backward until the last row of self-propelled vehicles 5 in the backward direction of the lifting and translation device is suspended in the air, and a climbing pole 12 is installed therefor;

[0111] S16: Figure 16 As shown, the last row of climbing poles 12 is lowered until the self-propelled vehicle 5 connected thereto descends to a relatively low track, and then the third connecting vehicle 16 is removed, and the lifting and translation device continues to move backward to the support platform 4 and is removed from between the upper and lower large modules;

[0112] S17: Figure 17 As shown, the lifting mechanism 9 is retracted into the receiving groove 17 on the bottom surface of the upper large module 3, so that the upper large module 3 is supported on the lower large module 1;

[0113] S18: Figure 18As shown, the lifting mechanism 9 is manually recovered from the accommodating groove 17 through the first channel 14, and the connection construction of the upper-level large module 3 and the lower-level large module can be carried out.

[0114] Among them, the supporting platform 1 is a steel structure platform, and multiple climbing mechanisms connected to self-propelled vehicles 5 are set according to load requirements. The climbing mechanism consists of a hydraulic runner, a biting tooth 11, and a climbing pole 12. The hydraulic runner serves as a climbing drive part, and its fixed part and telescopic part are connected to the climbing pole 12 through the biting tooth 11.

[0115] The large segmented module has been adaptively designed. A second channel 13 corresponding to the climbing pole is provided inside the module for the climbing pole 12 to pass through. A first channel 14 is also provided to facilitate the jacking mechanism to be sent into or taken out from the accommodating tank. In addition, each connecting vehicle and the self-propelled vehicle 5 of the moving mechanism have the same structure, and are all walking-type jacking walkers.

[0116] Therefore, the present invention cleverly applies the jacking and translation technology to nuclear power design and construction, which can realize the truly super-modular design and construction of nuclear power plants, significantly shorten the construction period, and flexibly meet user needs.

[0117] Specifically, the inventors proposed a super-modular design and construction method for nuclear power plants, which is as follows: in terms of design, the nuclear island building on the critical path of the nuclear power plant construction is divided axially into multiple super-large segmented modules, and each super-large segmented module is constructed in the factory from standard sub-modules of similar size and processed and manufactured in the factory. During the assembly of large modules, the installation and commissioning of instruments, equipment, pipelines, and cables in the super-large segmented modules are carried out simultaneously, and the super-large segmented modules that have been completed and commissioned are transported to the construction site. In terms of construction, the traditional crane hoisting construction method is transformed into a "jacking-translation" construction method, breaking through the limitations of the crane's lifting capacity on the size and weight of the module. Among them, the "jacking-translation" method is the key to the success of the super-modular design and construction method for nuclear power plants.

[0118] According to the super modular approach, the large modular segments of the nuclear island of a nuclear power plant are generally huge in scale. For example, the reactor building segment module has a diameter of more than 40 meters, a height of more than 20 meters, and weighs more than 3,000 tons. How to lift and move such large modular segments to the installation position is the first problem that the super modular approach needs to solve.

[0119] In order to ensure the stability of the segmented lifting of large modules in a nuclear power plant, the inventors proposed dividing the nuclear island building into multiple segments and lifting them step by step (the longer the lifting stroke, the worse the support stability).

[0120] The reinforced turbine plant frame structure is used as a platform and transportation channel for the multi-stage lifting of super-large segmented modules. Combined with the "jacking-translation" method of the present invention (the present invention adopts the method of alternating jacking and translation to achieve the jacking and translation of large module segments into place), the vertical assembly and construction of the nuclear island plant is realized.

[0121] In addition, by adjusting the type and scale of the sub-modules that constitute the segmented module, the type of the segmented module can be adjusted. Combined with the adjustment of the type, quantity, capacity and axial height of the relevant equipment in the segmented module, the design of nuclear power plants with different power scales and safety system configurations can be flexibly realized according to user needs, making the nuclear power plant a truly modular system.

[0122] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A method for vertically erecting large modules of a nuclear power plant using a jacking and translation device, characterized in that: The lifting and translation device comprises: a moving mechanism and a supporting platform (4); the moving mechanism comprises: a self-propelled vehicle (5), a climbing pole (12) and a climbing drive unit. The support platform (4) is used to support large modules. The climbing rod (12) passes through the supporting platform (4), the lower end of which is connected to the self-propelled vehicle (5), and the upper end of which passes through the large module. The climbing drive unit is connected to the supporting platform (4) and is used to drive the supporting platform (4) to rise and fall relative to the climbing rod (12), or to drive the climbing rod (12) to rise and fall relative to the supporting platform (4); The method comprises: S1: The lifting and translation device transports the upper large module (3) to the lower large module (1). S2: The climbing drive unit drives the support platform (4) to climb upward on the climbing pole (12) until the distance between the bottom surface of the support platform (4) and the next large module (1) is greater than or equal to the height of a self-propelled vehicle (5). S3: Lift the first row of unraised climbing rods (12) in the forward direction of the jacking and translation device until the bottom surface of the self-propelled vehicle (5) connected to the row of climbing rods (12) is flush with the top surface of the next large module (1), and move the jacking and translation device forward until the self-propelled vehicle (5) connected to the row of climbing rods (12) is supported on the top surface of the next large module (1). S4: Repeat step S3 until all the self-propelled vehicles (5) are supported on the top surface of the next large module (1); S5: A lifting mechanism (9) is provided between the next-level large module (1) and the previous-level large module (3), so as to lift the previous-level large module (3) to detach it from the support platform (4), then the climbing rod (12) is removed, and the self-propelled vehicle (5) is connected to the support platform (4); S6: The lifting and translation device moves backward until the first row of self-propelled vehicles (5) that have not been lowered in the backward direction of the lifting and translation device is suspended in the air, and the climbing rod (12) is passed through the support platform (4) and connected to the suspended self-propelled vehicle (5), and the connection between the suspended self-propelled vehicle (5) and the support platform (4) is released, and the climbing rod (12) is lowered until the self-propelled vehicle (5) connected to it touches the ground. S7: Repeat step S6 until all the self-propelled vehicles (5) are on the ground, and the lifting and translation device continues to move backward to the support platform (4) and is removed from between the upper and lower large modules. S8: The lifting mechanism (9) retracts into the next-level large module (1) and / or the previous-level large module (3), so that the previous-level large module (3) is supported on the next-level large module (1).

2. The vertical construction method of a large-scale nuclear power plant module according to claim 1, characterized in that: The climbing drive unit comprises a plurality of telescopic cylinders (10), which are distributed around the climbing pole (12) at intervals in a circular direction. The telescopic cylinders (10) are fixedly connected to the support platform (4) and provide supporting power for the support platform (4). The telescopic cylinder (10) comprises a fixed portion and a telescopic portion, and the telescopic cylinder follows the sequence of one of the fixed portion and the telescopic portion being connected to the climbing pole (12), the other being disconnected from the climbing pole (12) - the telescopic cylinder (10) being telescoped - one of the fixed portion and the telescopic portion being disconnected from the climbing pole (12), the other being connected to the climbing pole (12) - the telescopic cylinder (10) being reset, so as to enable the support platform (4) to be raised or lowered relative to the climbing pole (12), or the climbing pole (12) to be raised or lowered relative to the support platform (4).

3. The vertical construction method of a large-scale nuclear power plant module according to claim 2, characterized in that: A placement hole is provided in the support platform (4), the climbing pole (12) passes through the support platform (4) through the placement hole, and the climbing drive unit is located in the placement hole.

4. The vertical construction method of a large-scale nuclear power plant module according to claim 1, characterized in that: Before step S3, the following steps are also included: A first connecting vehicle (8) is installed on the bottom surface of the front edge of the supporting platform (4) and is supported on the next-level large module (1).

5. The vertical construction method of a large-scale nuclear power plant module according to claim 4, characterized in that: A first connecting vehicle (8) is installed on the bottom surface of the front edge of the supporting platform (4), and is supported on the next-level large module (1), specifically comprising: The lifting and translation device moves forward until the front edge of the support platform (4) extends into the upper space of the next-level large module (1), and the first connecting vehicle (8) supported on the next-level large module (1) and located below the front edge of the support platform (4) is detachably connected to the support platform (4).

6. The vertical construction method of a large-scale nuclear power plant module according to claim 4 or 5, characterized in that: The steps between step S3 and step S4 also include: The first connecting vehicle (8) installed on the bottom surface of the front edge of the supporting platform (4) is removed.

7. The vertical construction method of a large-scale nuclear power plant module according to claim 1, characterized in that: In the step S4, before the last row of unraised climbing poles (12) in the forward direction of the lifting and translation device is lifted, the step further includes: A second connecting vehicle (15) is installed on the bottom surface of the supporting platform (4) between the last two rows of climbing poles (12), and is supported on the next large module (1).

8. The vertical construction method of a large-scale nuclear power plant module according to claim 7, characterized in that: The second connecting vehicle (15) is installed at a position between the last two rows of climbing poles (12) on the bottom surface of the supporting platform (4), and is supported on the next large module (1), specifically comprising: The lifting and translation device moves forward to the position of the support platform (4) where the second connecting vehicle (15) is to be installed, and enters the upper space of the next-level large module (1), and the second connecting vehicle (15) supported on the next-level large module (1) and located below the position of the support platform (4) where the second connecting vehicle (15) is to be installed is detachably connected to the support platform (4).

9. The vertical construction method of a large-scale nuclear power plant module according to claim 7 or 8, characterized in that: The steps between step S6 and step S7 also include: The second connecting vehicle (15) installed on the bottom surface of the supporting platform (4) is removed.

10. The vertical construction method of a large-scale nuclear power plant module according to any one of claims 1 to 3, characterized in that: In the step S7, before lowering the last row of unraised climbing poles (12) in the forward direction of the jacking and translation device, the step further includes: A third connecting vehicle (16) is installed on the bottom surface of the front edge of the supporting platform (4) and is supported on the next-level large module (1).

11. The vertical construction method of a large-scale nuclear power plant module according to claim 10, characterized in that: In the step S7, after all the self-propelled vehicles (5) have landed, the step further includes: The third connecting vehicle (16) installed on the bottom surface of the supporting platform (4) is removed.

12. The vertical construction method of a large-scale nuclear power plant module according to any one of claims 1 to 3, characterized in that: The top surface of the next-level large module (1) and / or the bottom surface of the previous-level large module (3) have a receiving groove (17) capable of accommodating the retracted lifting mechanism (9). In the step S5, the jacking mechanism (9) is provided between the next-level large module (1) and the previous-level large module (3), specifically comprising: A lifting mechanism (9) is provided in the accommodating groove (17); In step S8, the lifting mechanism (9) is retracted into the next-level large module (1) and / or the previous-level large module (3), specifically comprising: The lifting mechanism (9) retracts into the accommodating groove (17).

13. The vertical construction method of a large-scale nuclear power plant module according to claim 12, characterized in that: The top surface of the upper-level large module (3) has a first channel (14) connected to the accommodating groove (17), and the lifting mechanism (9) can be sent into the accommodating groove (17) through the first channel (14), or moved out of the accommodating groove (17) through the first channel (14).

Images