A nuclear power plant steel lining module assembly platform

Abstract

The present application provides a kind of nuclear power plant steel lining module assembling platform, belong to building steel structure construction facilities, including pier (1), annular support platform (2), inner ring wall (4) and outer ring wall (5), the pier (1) is fixed on ground, the annular support platform (2) is placed on pier (1), the inner ring wall (4) and outer ring wall (5) are respectively arranged in the inside and outside of annular support platform (2) top;The top of the annular support platform (2) is equipped with several adjusting supports (3), the adjusting support (3) is located between inner ring wall (4) and outer ring wall (5), adjusting support (3) both sides are equipped with operation platform (8);Steel lining board (10) is placed on adjusting support (3);The upper portion between the inner ring wall (4) and outer ring wall (5) is equipped with annular crane (7);The present application construction is not limited by site, and is not influenced by external environment, platform can also be repeatedly used, transportation process is safe and reliable, economic and environmental protection.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of construction steel structure construction facilities, and particularly relates to a nuclear power plant steel lining module assembling platform. BACKGROUND

[0002] In nuclear power construction, the containment steel lining is a sealing inner lining metal structure of the reactor building, and its main function is to prevent radioactive material from leaking in an accident state, which is a third barrier and a nuclear quality protection first-class and nuclear safety second-class device related to the pressure boundary, and the construction quality requirement is high. The containment steel lining is in the key line of nuclear power construction, and is directly related to the construction period of the nuclear power plant. At present, the modular construction technology is widely used, and the steel lining module construction is also the trend of future nuclear power steel lining construction.

[0003] The modular construction of the steel lining requires a module assembling site, a hoisting tool storage site and a crane station site, which need to be arranged around the reactor building, and the required area is large and the occupied time is long. The site problem has become the main factor restricting the popularization and application of the modular construction of the steel lining. Many nuclear power plants have to give up the modular construction of the steel lining due to the lack of site; in order to meet the demand of the steel lining module construction site, some nuclear power plants provide the module assembling site by excavating and backfilling the plant or corridor; due to the limitation of the site, the steel lining module hoisting of some nuclear power plants needs a large crawler crane to walk on the load, and the safety risk is high.

[0004] The steel lining module construction period is long, the steel lining module is assembled outdoors, and the influence of environmental factors such as rain and snow cannot be constructed, so the construction period is difficult to guarantee, and the construction measure cost is high. Due to the lack of windproof measures, environmental factors such as humid weather cause most of the welding quality defects, and the welding windproof has not been effectively solved.

[0005] When the steel lining module is assembled, a large number of hoisting operations are required for installing items such as sleeves and anchoring pieces, and the efficiency of the truck crane is low. The operation platform for assembling the steel lining is repeatedly assembled and disassembled.

[0006] The on-site steel lining assembly and welding amount is large, and the smoke and dust generated by welding cannot be effectively recycled. SUMMARY

[0007] The purpose of the application is to solve the problems mentioned in the background art, provide a nuclear power plant steel lining module assembling platform, which is not limited by the site and is not affected by the external environment, and can be repeatedly used, the transportation process is safe and reliable, the smoke and dust can be recycled, and it is economic and environmentally friendly.

[0008] To achieve the above technical purposes, the technical scheme adopted by the application is:

[0009] The utility model provides a kind of nuclear power plant steel lining module assembling platform, including pier, annular support platform, inner ring wall and outer ring wall, the pier is fixed on ground, the annular support platform is placed on pier, the inner ring wall and outer ring wall are respectively arranged in the inside and outside of annular support platform top;Annular support platform top is equipped with several adjusting supports, the adjusting support is between inner ring wall and outer ring wall, adjusting support both sides are equipped with operating platform;Steel lining board is placed on adjusting support;Ring crane is equipped between the upper portion of inner ring wall and outer ring wall.

[0010] As preferred, the annular support platform is a lattice annular structure, and the annular support platform comprises a plurality of annular platform segments connected to each other by first pin shafts.

[0011] As preferred, the adjusting support comprises support steel, a plurality of bolts and a steel plate, the support steel is connected to the annular support platform, the bolts are connected to the support steel, and the steel plate has threaded holes at four corners matched with the bolts.

[0012] As preferred, the inner ring wall and the outer ring wall are lattice structures, and each of the inner ring wall and the outer ring wall is divided into multiple segments and detachably connected.

[0013] As preferred, the top of the inner ring wall and the outer ring wall is installed with an openable and closable roof.

[0014] As preferred, the outer ring wall is provided with a plurality of support columns outside the roof, the support columns are rotatably connected with pulleys, the outer ring wall is provided with a driving device, the driving device is a winch, the winch is wound with a hinge, the hinge passes through the pulleys and is connected to the roof, and each of the rainproof plates and the lighting plates is provided with a connecting point matched with the hinge at the top.

[0015] As preferred, the upper portion of the inner ring wall and the outer ring wall is provided with a ring crane beam, the top of the ring crane beam is provided with a crane track, and the ring crane is installed on the crane track.

[0016] As preferred, the outer ring wall is provided with a plurality of first telescopic rods, the first telescopic rods are connected with annular angle steels at the top of the steel lining boards, and each steel lining board is connected with at least two first telescopic rods.

[0017] As preferred, the operation platform is provided with several layers, the bottom of the operation platform is provided with a rolling wheel, and the operation platform is connected to the inner ring wall or the outer ring wall through a second telescopic rod; the inner ring wall and the outer ring wall are provided with up and down passages on the inner and outer sides.

[0018] As preferred, the inner ring wall or the outer ring wall is provided with several smoke dust recovery devices, the smoke dust recovery device comprises a pipeline, an exhaust fan and a collection device, the pipeline is communicated with the internal space surrounded by the inner ring wall and the outer ring wall, and the exhaust fan is connected with the pipeline for extracting the smoke dust in the pipeline and discharging the smoke dust into the collection device.

[0019] The present application has the following advantages:

[0020] 1. The present application is a steel lining plate assembling platform, which can be placed outside the nuclear power plant construction site, and the steel lining module is assembled in the platform. After the assembly is completed, the steel lining module is transported together with the entire platform to the nuclear power plant construction site, and the assembled steel lining plate is hoisted to the designated position. This not only avoids site restrictions, but also improves the safety of transportation together with the entire platform, avoiding damage to the steel lining plate during transportation. Moreover, the platform can be repeatedly used, avoiding repeated disassembly and assembly of the platform each time, improving the construction efficiency and saving costs.

[0021] 2. The inner and outer ring walls are connected to the roof and the annular support platform to form a relatively closed annular space, and the assembly of the steel lining plate is carried out in the space, avoiding the influence of the external environment on the construction. Rainy, windy or humid days can also be normal construction work, not only avoiding welding quality defects caused by weather, but also avoiding weather delays in construction, shortening the construction period.

[0022] 3. Since the assembly of the steel lining plate is carried out in the relatively closed space of the platform, the smoke dust recovery device is arranged inside, which can effectively recover and treat the smoke dust generated during construction. Compared with the open-air operation of the prior art, the present application is more environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a three-dimensional schematic view of the present application (roof closed);

[0024] Figure 2 is a three-dimensional schematic view of the present application (roof open);

[0025] Figure 3 is a partial side sectional view of the present application Figure 1 ;

[0026] Figure 4 is a partial side sectional view of the present application Figure 2 ;

[0027] Figure 5is a partial side view of the operating platform, adjusting support and steel lining plate of the present application;

[0028] Figure 6 is a side view of the roof opening of the present application;

[0029] Figure 7 is a structural schematic view of the adjusting support;

[0030] Figure 8 is a structural schematic view of the ring-shaped platform segment;

[0031] Figure 9 is Figure 3 is a partial enlarged schematic view at A in FIG. 4;

[0032] Figure 10 is Figure 5 is a partial enlarged schematic view at B in FIG. 4.

[0033] Marked names in the figure:

[0034] 1, support pier;

[0035] 2, ring-shaped support platform, 21, ring-shaped platform segment, 22, first pin shaft, 23, support plate;

[0036] 3, adjusting support, 31, steel plate, 32, bolt, 33, radial limiting plate, 34, wedge;

[0037] 4, inner ring wall, 41, second pin shaft, 42, windproof plate, 43, ring-shaped crane beam, 44, crane track;

[0038] 5, outer ring wall, 51, pulley, 52, winch;

[0039] 6, roof, 61, hinge, 62, connection point, 63, rainproof plate, 64, light plate;

[0040] 7, ring-shaped crane;

[0041] 8, operating platform, 81, first telescopic rod, 82, roller, 83, second telescopic rod;

[0042] 9, smoke dust recovery device;

[0043] 10, steel lining plate. DETAILED DESCRIPTION

[0044] The embodiments of the present application are further described in detail below with reference to the accompanying drawings.

[0045] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back" and the like cited in the invention are only for the convenience of clear description, and are not used to limit the scope of the invention, and the change or adjustment of the relative relationship is also considered as the implementable scope of the invention without substantial change of the technical content.

[0046] As shown in Figures 1-10 The present application provides a nuclear power plant steel lining module assembly platform, comprising a pier 1, a ring-shaped support platform 2, an inner ring wall 4 and an outer ring wall 5.

[0047] A suitable site is found around the nuclear island, and then the pier 1 is fixed to the ground. The pier 1 has multiple piers, which together form a ring shape and can be fixed to the ground at equal intervals. The ring-shaped support platform 2 is placed on the pier 1, and the pier 1 is used to support the ring-shaped support platform 2. The ring-shaped support platform 2 is a lattice ring structure, and the ring-shaped support platform 2 comprises a plurality of ring-shaped platform segments 21 connected to each other by first pin shafts 22. The top of the ring-shaped support platform 2 is paved with a support plate 23, and each ring-shaped platform segment 21 has at least two piers 1 below. The pier 1 has a certain height, which facilitates the transportation of the plate car to the bottom of the ring-shaped support platform 2 to lift the entire platform and transport it.

[0048] The inner ring wall 4 and the outer ring wall 5 are respectively arranged on the inner and outer sides of the top of the ring-shaped support platform 2, and a ring-shaped space is left between the inner ring wall 4 and the outer ring wall 5 for assembling the steel lining plate. The inner ring wall 4 and the outer ring wall 5 are lattice structures, and the inner ring wall 4 and the outer ring wall 5 are each divided into multiple segments, which can be connected by pins for easy disassembly. The inner ring wall 4 and the outer ring wall 5 are connected to the ring-shaped support platform 2 by second pin shafts 41, which are also convenient for disassembly. The inner side of the inner ring wall 4 and the outer side of the outer ring wall 5 are provided with windproof plates 42, which can prevent wind and rain and avoid the influence of external weather factors on construction.

[0049] The top of the annular support platform 2 is provided with a plurality of adjusting supports 3, which are located between the inner ring wall 4 and the outer ring wall 5, and the adjusting support 3 comprises a support steel, a plurality of bolts 32 and a steel plate 31, the support steel adopts an I-shaped steel, the I-shaped steel is connected to the annular support platform 2 (can be bolted), the bolts 32 are connected to the flange plates at the top of the I-shaped steel, and the four corners of the steel plate 31 are provided with threaded holes matched with the bolts 32, the horizontal degree of the steel plate 31 is adjusted through the bolts 32, and it is ensured that the steel plate 31 is horizontal; the steel plate 31 is provided with a radial limiting plate 33 perpendicular to the steel plate 31, the radial limiting plate 33 is provided with an open slot matched with the steel lining plate 10 in the middle, the open slot divides the radial limiting plate 33 into left and right plates, and the lower opening (bottom) of the steel lining plate 10 is clamped in the open slot; after the steel lining plate 10 is clamped into the open slot, a wedge 34 can also be inserted into the open slot for reinforcement and to prevent the steel lining plate 10 from sliding in the open slot; the steel lining plate 10 is fixed through the adjusting support 3, the lower opening roundness of the steel lining plate 10 is controlled, and the radius of the steel lining plate 10 is adjusted (the steel lining plate 10 is relatively thin and has a certain degree of bendability, and the radius of all the steel lining plates 10 is adjusted uniformly through the adjusting support 3).

[0050] Both sides of the adjusting support 3 are provided with an operation platform 8, that is, the operation platform 8 is arranged on both sides of the steel lining plate 10; the operation platform 8 is provided with a plurality of layers, so that the construction personnel can assemble and operate the steel lining plate 10 at different heights; the bottom of the operation platform 8 is provided with a roller 82, so that the operation platform 8 can be moved conveniently;

[0051] The operation platform 8 is connected to the inner ring wall 4 or the outer ring wall 5 through a second telescopic rod 83, that is, the operation platform 8 on the outer side is connected to the outer ring wall 5 through the second telescopic rod 83, and the operation platform 8 on the inner side is connected to the inner ring wall 4 through the second telescopic rod 83 (in the drawing, the second telescopic rod 83 connected to the inner ring wall 4 is omitted for the sake of simplifying the structure), the inner and outer ring walls are pulled closer or the steel lining plate 10 is pushed forward through the second telescopic rod 83; the inner and outer sides of the inner ring wall 4 and the outer ring wall 5 are provided with up and down passages (similarly, in order to better display the main structure, only the up and down passages (stairs) on the outer side of the outer ring wall are displayed in Figure 1 the drawing, and in fact, the up and down passages are also arranged on the inner sides of the inner and outer ring walls, that is, in the space for assembling the steel lining plate 10, so as to facilitate the construction personnel to operate the layers of the operation platform 8).

[0052] The top of the inner ring wall 4 and the outer ring wall 5 is provided with a ring-shaped crane 7; the top of the inner ring wall 4 and the outer ring wall 5 is provided with a ring-shaped crane beam 43, which can be a ring-shaped section steel contained in the lattice structure of the inner and outer ring walls; the top of the ring-shaped crane beam 43 is provided with a crane track 44, which is a steel rail, and the ring-shaped crane 7 is installed on the crane track 44; due to the inconsistency of the inner and outer radii, the ring-shaped crane 7 adjusts the inconsistent moving distance on the two tracks through frequency conversion and speed regulation.

[0053] The top of the inner ring wall 4 and the outer ring wall 5 is provided with a ring-shaped crane 7; the top of the inner ring wall 4 and the outer ring wall 5 is provided with a ring-shaped crane beam 43, which can be a ring-shaped section steel contained in the lattice structure of the inner and outer ring walls; the top of the ring-shaped crane beam 43 is provided with a crane track 44, which is a steel rail, and the ring-shaped crane 7 is installed on the crane track 44; due to the inconsistency of the inner and outer radii, the ring-shaped crane 7 adjusts the inconsistent moving distance on the two tracks through frequency conversion and speed regulation.

[0054] The outer ring wall 5 is provided with a plurality of support columns outside the roof 6, and the support columns are rotatably connected with pulleys 51, and the outer ring wall 5 is provided with a driving device, which is a winch 52, and the winch 52 is wound with a hinge 61, and the hinge 61 is connected to the roof 6 by passing through the pulley 51; each rainproof plate 63 and daylighting plate 64 is provided with a connecting point 62 matched with the hinge 61 at the top, which can be a connecting ring, or a connecting column, or other devices for connecting the hinge 61.

[0055] The outer ring wall 5 is provided with a plurality of first telescopic rods 81, and the first telescopic rods 81 are connected with the ring-shaped angle steels at the top of the steel lining plate 10; each steel lining plate 10 is connected with at least two first telescopic rods 81, and the verticality of the steel lining plate 10 is adjusted by the first telescopic rods 81.

[0056] The first telescopic rod 81 and the second telescopic rod 83 can adopt electric telescopic rods or hydraulic rods.

[0057] The inner ring wall 4 or the outer ring wall 5 is provided with a plurality of smoke dust recovery devices 9 (as this belongs to the prior art, the drawings only show a section of the pipeline of the smoke dust recovery device 9 for the purpose of simplifying the structure, and the rest are omitted and not shown), the smoke dust recovery device 9 comprises a pipeline, an exhaust fan and a collection device, the pipeline is in communication with the internal space surrounded by the inner ring wall 4 and the outer ring wall 5, the exhaust fan is connected with the pipeline for extracting the smoke dust in the pipeline (as the pipeline is in communication with the space in the inner and outer ring walls, it actually extracts the smoke dust generated in the space) and discharging it into the collection device, which can be various existing smoke dust treatment devices for further environmental protection treatment of the smoke dust.

[0058] The working principle of the nuclear power plant steel lining module assembly platform provided by the application is as follows:

[0059] First, adjust the support according to the construction requirements on the support plate of the annular support platform, the construction personnel climb to the corresponding position of the top of the inner and outer ring walls and the operation platform through the up and down channel, push the operation platform to the steel lining plate through the second electric telescopic rod, hoist the steel lining plate to the adjust support through the annular crane, connect the circumferential angle steel at the top of the steel lining plate to the first telescopic rod, and then assemble the steel lining plate, the through sleeve, anchor and other items that need to be hoisted in the assembly process can be hoisted through the annular crane.

[0060] After the assembly of the steel lining plate is completed, according to the use condition or hoisting activity arrangement of the site, a plurality of flat cars (large transport vehicles) are arranged under the annular support platform, the entire operation platform and the steel lining module are transported to the designated position, and then the assembled steel lining plate is hoisted to the designated position through the large caterpillar truck.

[0061] The above is only the preferred embodiment of the application, and the protection scope of the application is not limited to the above-mentioned embodiments, and any technical solution belonging to the idea of the application falls within the protection scope of the application. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the application should be regarded as the protection scope of the application.

Claims

1. A modular assembly platform for steel lining in nuclear power plants, characterized in that: The system includes a support pier (1), a ring-shaped support platform (2), an inner ring wall (4), and an outer ring wall (5). The support pier (1) is fixed to the ground, and the ring-shaped support platform (2) is placed on the support pier (1). The inner ring wall (4) and the outer ring wall (5) are respectively located on the inner and outer sides of the top of the ring-shaped support platform (2). The top of the ring-shaped support platform (2) is provided with several adjustable supports (3). The adjustable supports (3) are located between the inner ring wall (4) and the outer ring wall (5). Operating platforms (8) are provided on both sides of the adjustable supports (3). A steel lining plate (10) is placed on the adjustable supports (3). A ring crane (7) is provided between the upper parts of the inner ring wall (4) and the outer ring wall (5). The inner ring wall (4) The outer ring wall (5) is a lattice structure. Both the inner ring wall (4) and the outer ring wall (5) are divided into multiple sections, which are detachably connected. The inner ring wall (4) and the outer ring wall (5) are connected to the ring support platform (2) through the second pin (41). Windproof plates (42) are provided on the inner side of the inner ring wall (4) and the outer side of the outer ring wall (5). An openable roof (6) is installed across the top of the inner ring wall (4) and the outer ring wall (5). The roof (6) is divided into several sections, each of which consists of alternating rainproof plates (63) and light-transmitting plates (64). One end of each rainproof plate (63) and light-transmitting plate (64) is hinged to the outer ring wall (5) and is equipped with a driving device for flipping the rainproof plate (63) and light-transmitting plate (64).

2. The nuclear power plant steel liner module assembly platform according to claim 1, characterized in that: The ring support platform (2) is a lattice ring structure. The ring support platform (2) includes several ring platform segments (21), which are connected to each other by a first pin (22). The top of the ring support platform (2) is covered with a support plate (23).

3. The nuclear power plant steel liner module assembly platform according to claim 1, characterized in that: The adjusting support (3) includes a supporting steel, several bolts (32) and a steel plate (31). The supporting steel is connected to the annular support platform (2), and the bolts (32) are connected to the supporting steel. The four corners of the steel plate (31) are provided with threaded holes that match the bolts (32). The steel plate (31) is provided with a radial limiting plate (33), which is perpendicular to the steel plate (31). The radial limiting plate (33) has an opening groove in the middle that matches the steel lining plate (10).

4. The nuclear power plant steel liner module assembly platform according to claim 1, characterized in that: The outer ring wall (5) is provided with several support columns on the outside of the roof (6). The support columns are rotatably connected to pulleys (51). The outer ring wall (5) is provided with a driving device, which is a winch (52). A hinge (61) is wound on the winch (52). The hinge (61) passes around the pulley (51) and is connected to the roof (6). Each rainproof panel (63) and light-transmitting panel (64) has a connection point (62) at the top that matches the hinge (61).

5. The nuclear power plant steel liner module assembly platform according to claim 1, characterized in that: The inner ring wall (4) and the outer ring wall (5) are both provided with annular crane beams (43) at their upper parts. The top of the annular crane beams (43) is provided with crane rails (44), and the annular crane (7) is installed on the crane rails (44).

6. The nuclear power plant steel liner module assembly platform according to claim 1, characterized in that: The outer ring wall (5) is provided with a number of first telescopic rods (81), and the first telescopic rods (81) are connected to the circumferential angle steel at the top of the steel lining plate (10); each steel lining plate (10) is connected to at least two first telescopic rods (81).

7. The nuclear power plant steel liner module assembly platform according to claim 1, characterized in that: The operating platform (8) has several layers, and the bottom of the operating platform (8) is provided with rollers (82). The operating platform (8) is connected to the inner ring wall (4) or the outer ring wall (5) through the second telescopic rod (83). The inner ring wall (4) and the outer ring wall (5) are provided with upper and lower passages on both the inner and outer sides.

8. The nuclear power plant steel liner module assembly platform according to claim 1, characterized in that: The inner ring wall (4) or outer ring wall (5) is provided with a number of dust collection devices (9). The dust collection device (9) includes a pipe, an exhaust fan and a collection device. The pipe is connected to the internal space enclosed by the inner ring wall (4) and the outer ring wall (5). The exhaust fan is connected to the pipe to extract the dust in the pipe and discharge it into the collection device.

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