Internal supporting device for nuclear industry water tank

Abstract

The invention discloses a nuclear industry water tank internal supporting device. The nuclear industry water tank internal supporting device comprises a telescopic supporting framework, inner and outer cambered surface supporting modules used for supporting and installing the telescopic supporting framework, side face supporting modules and a bottom supporting module. The telescopic supporting framework is composed of a bottom supporting framework, a middle supporting framework and a top supporting framework in a telescopic matching mode, and the whole telescopic supporting framework can stretch out and draw back in the dimension of at least one of the height, the length and the width. The inner side and the outer side of the telescopic supporting framework are cambered surfaces; an inner cambered surface supporting module and an outer cambered surface supporting module are mounted on the inner side and the outer side of the telescopic supporting framework respectively; side face supporting modules are installed on the left side and the right side of the telescopic supporting framework respectively. A bottom supporting module is installed at the bottom of the telescopic supporting framework. The nuclear industry water tank internal supporting device has the advantages of being efficient and rapid in supporting, good in stability performance and convenient and fast to transport and install.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear industry, and specifically relates to an internal support device for a nuclear industry water tank. Background Art

[0002] In nuclear power projects, during the welding and pouring processes of stainless steel water tanks, the support inside the water tank is very important. Currently, the commonly used method is to build temporary scaffolding for construction. Although the scaffolding can provide stable support, there are also many limitations: First, a large amount of time, manpower, and material resources are required for the erection and maintenance of the scaffolding, and a large number of auxiliary materials are needed, resulting in low efficiency and high comprehensive costs; Second, the scaffolding components are relatively single, and the splicing methods are also relatively single. When dealing with complex construction site conditions, corresponding adjustments cannot be made; At the same time, the installation and disassembly processes of the scaffolding also require a large amount of time and labor costs, including safety issues, which also need to be considered.

[0003] Therefore, there is an urgent need to invent a retractable internal support device to achieve fast, efficient, and low-cost support for the water tank, making the welding operation of the nuclear industry water tank more convenient and safe. Summary of the Invention

[0004] The purpose of the present invention is to provide an internal support device for a nuclear industry water tank.

[0005] To achieve the above purpose, the technical solution provided by the present invention is:

[0006] An internal support device for a nuclear industry water tank includes a retractable support skeleton and inner and outer arc surface support modules, side support modules, and bottom support modules for supporting and installing the retractable support skeleton.

[0007] The retractable support skeleton is composed of a bottom support skeleton, an intermediate support skeleton, and a top support skeleton that are retractably fitted together, so that the overall retractable support skeleton can be retracted in at least one dimension of height, length, and width; both the inner and outer sides of the retractable support skeleton are arc surfaces.

[0008] Inner and outer arc surface support modules are respectively installed on the inner and outer sides of the retractable support skeleton; side support modules are respectively installed on the left and right sides of the retractable support skeleton; a bottom support module is installed at the bottom of the retractable support skeleton.

[0009] To optimize the above technical solution, the specific measures taken also include:

[0010] The inner and outer arc surface support modules described above include an inner arc surface support module installed across the inner sides of the bottom support skeleton, the middle support skeleton, and the top support skeleton, whose support direction points to the center of the inner arc surface of the telescopic support skeleton, and an outer arc surface support module installed across the outer sides of the bottom support skeleton, the middle support skeleton, and the top support skeleton, whose support direction points to the center of the outer arc surface of the telescopic support skeleton.

[0011] Further, the bottom support skeleton includes an inner arc surface bottom skeleton and an outer arc surface bottom skeleton, as well as a detachable middle support rod and a detachable first skeleton fixing and strengthening plate connecting the inner arc surface bottom skeleton and the outer arc surface bottom skeleton. The direction of contraction between the inner arc surface bottom skeleton and the outer arc surface bottom skeleton is defined as lateral contraction, and a first telescopic rod and a detachable fixing and strengthening rod are installed on the inner arc surface bottom skeleton and the outer arc surface bottom skeleton. The direction of contraction between the bottom support skeleton and the middle support skeleton is defined as longitudinal contraction; bottom circular tube support leg guide sleeves are provided on the inner arc surface bottom skeleton and the outer arc surface bottom skeleton.

[0012] Further, the middle support skeleton includes an inner arc surface middle skeleton and an outer arc surface middle skeleton, as well as a detachable middle support rod, a detachable second skeleton fixing and strengthening plate, and a telescopic middle guide rod connecting the inner arc surface middle skeleton and the outer arc surface middle skeleton. The direction of contraction between the inner arc surface middle skeleton and the outer arc surface middle skeleton is defined as lateral contraction, and a detachable first fixing and strengthening rod and a fixing support rod are installed on the inner arc surface middle skeleton and the outer arc surface middle skeleton. The fixing support rod is a hollow rod, which can cooperate with the corresponding first telescopic rod in the bottom support skeleton so that the first telescopic rod contracts into the fixing support rod.

[0013] Further, the top support skeleton includes an inner arc surface top skeleton and an outer arc surface top skeleton, as well as a detachable middle support rod, a detachable skeleton fixing and strengthening plate, and a telescopic middle guide rod connecting the inner arc surface top skeleton and the outer arc surface top skeleton. The direction of contraction between the inner arc surface top skeleton and the outer arc surface top skeleton is defined as lateral contraction, and a detachable second fixing and strengthening rod and a second telescopic rod are installed on the inner arc surface top skeleton and the outer arc surface top skeleton. The position of the second telescopic rod is staggered from the position of the first telescopic rod.

[0014] The inner and outer arc surface support module described above includes arc surface support rods and arc surface support plates. At both ends of the arc surface support rods, arc surface support rod mounting seats are detachably connected, and the arc surface support rod mounting seats are used for mounting on the bottom support skeleton, the middle support skeleton, and the top support skeleton; in the middle between the arc surface support rod and the arc surface support plate, a first support plate fine adjustment screw rod is provided, and the first support plate fine adjustment screw rod is detachably connected to the arc surface support plate through an arc surface support plate mounting rod; at both ends between the arc surface support rod and the arc surface support plate, first two-end push rods are respectively installed, and the first two-end push rods are detachably connected to the arc surface support plate through first two-side support plate fine adjustment push rods.

[0015] The side support module is composed of a side support module and a corner support module.

[0016] Further, the side support module includes side support rods, side support plates, and side support telescopic rods. At both ends of the side support rods, side support telescopic rods are detachably connected, and the side support telescopic rods are used for mounting on the bottom support skeleton, the middle support skeleton, and the top support skeleton; in the middle between the side support rod and the side support plate, a second support plate fine adjustment screw rod is provided, and the second support plate fine adjustment screw rod is detachably connected to the side support plate through a side support plate mounting rod; at both ends between the side support rod and the side support plate, second two-end push rods are respectively installed, and the second two-end push rods are detachably connected to the side support plate through second two-side support plate fine adjustment push rods.

[0017] Further, the corner support module includes an outer arc surface corner strengthening support rod, a corner side support telescopic rod, an outer arc surface corner rotating support rod, an outer arc surface corner adjustment rod, and a corner strengthening fixed support rod; the outer arc surface corner rotating support rod is used for mounting on the bottom support skeleton, the middle support skeleton, and the top support skeleton; the corner strengthening fixed support rod is detachably connected to the side support telescopic rod; the corner side support telescopic rod and the outer arc surface corner strengthening support rod are respectively detachably connected to the outer arc surface corner rotating support rod, and the corner side support telescopic rod is detachably connected to the side support rod; one end of the outer arc surface corner adjustment rod is detachably connected to the outer arc surface corner strengthening support rod, and the other end is detachably connected to the corner strengthening fixed support rod.

[0018] Further, the bottom support module includes bottom round tube support legs, support leg transverse strengthening rods, and support leg longitudinal strengthening rods. A support leg strengthening frame sliding sleeve is detachably connected to the bottom round tube support legs, and the support leg transverse strengthening rods and the support leg longitudinal strengthening rods are respectively detachably installed on the support leg strengthening frame sliding sleeve; a support leg adjustment rod is installed below the bottom round tube support legs, and a bull's-eye bearing is provided below the support leg adjustment rod. The bottom round tube support legs correspond to the bottom round tube support leg guide sleeves on the bottom support skeleton, so that the bottom round tube support legs can slide into the bottom round tube support leg guide sleeves.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] During the use of the device of the present invention, rapid support for the water tank structure can be achieved. The key lies in that the device has a certain telescopic ability, and the telescopic rods between the skeletons enable the retractable internal support device to be contracted into a certain volume for convenient transportation and installation. The inner and outer sides of the retractable support skeleton of the present invention are both designed as arc surfaces, which are built with the matching assembly structure to form a force-bearing system. Compared with the traditional straight-bar support structure, it has better force-bearing stability and expandable applicability.

[0021] When the present invention is put into use, the operation is simple. Only need to set up the support modules on the inner and outer arc surfaces, the left and right side surfaces and the bottom, expand each layer of the skeleton along the horizontal axis and the vertical axis in turn, install and connect the support modules on the inner and outer arc surfaces, the left and right side surfaces and the bottom, and hoist them above the welded bottom plate of the water tank. Then, the remaining surfaces of the water tank can be covered. Subsequently, each support module is finely adjusted to realize the support for the water tank structure; after the water tank is welded and the pouring is completed, loosen each support module, then hoist the retractable internal support device out of the water tank, remove the corresponding support module, and further contract the retractable internal support device and hoist it for transportation to the next place for supporting the welding and pouring of the water tank.

[0022] The arc surface structure of the present invention can convert the vertical load into the lateral pressure distributed along the curved surface, make more full use of the compressive performance of the material structure, reduce the local stress concentration through mechanical conduction, and enhance the overall load-bearing stability. It has significant advantages in terms of bending resistance and anti-deformation ability for the system that needs to be frequently adjusted in terms of telescoping.

[0023] The present invention is provided with movable support modules. For example, when installing, inserting the pin can carry out the support. In this way, for the welding blind spots, under the condition of ensuring the stability of other supports, the movable support modules at the blind spots can be removed to conveniently complete the welding at the blind spots.

[0024] The corner support module of the present invention is set as a rotatable and retractable structure. When welding the corner of the outer arc surface, the corner support module of the corresponding part can be rotated and retracted to give enough welding space for the welders.

[0025] A number of uniformly arranged support modules in the present invention provide sufficient support capacity for the welding and pouring of the water tank. At the same time, the fine adjustment function of each part of the support ensures that it can be completely fitted with the inner surface of the water tank.

[0026] The retractable internal support device of the present invention has the characteristics of high and rapid support efficiency, good stability performance, and convenient transportation and installation, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Overall schematic diagram of a retractable internal support device of the present invention;

[0028] Figure 2 Schematic diagram of the retractable support framework in the present invention;

[0029] Figure 3 Schematic diagram of the bottom support framework in the present invention;

[0030] Figure 4 Schematic diagram of the middle support framework in the present invention;

[0031] Figure 5 Schematic diagram of the top support framework in the present invention;

[0032] Figure 6 Cross-sectional view of the inner and outer arc surface support module in the present invention;

[0033] Figure 7 Cross-sectional view of the side support module in the present invention;

[0034] Figure 8 Front cross-sectional view of the corner support module in the present invention;

[0035] Figure 9 Top cross-sectional view of the corner support module in the present invention;

[0036] Figure 10 Schematic diagram of the bottom support module in the present invention;

[0037] Figure 11 Schematic diagram of the deployed state of the present invention;

[0038] Figure 12 Schematic diagram of the retracted state of the present invention;

[0039] Wherein:

[0040] 1 - Telescopic support framework: 11 - Bottom support framework, 111 - Inner arc surface bottom framework, 112 - Outer arc surface bottom framework, 113 - Intermediate support rod, 114 - First framework fixing and strengthening plate, 115 - First telescopic rod, 116 - Telescopic rod mounting seat, 117 - Fixing and strengthening rod, 118 - Bottom circular tube support leg guide sleeve, 12 - Intermediate support framework, 121 - Inner arc surface intermediate framework, 122 - Outer arc surface intermediate framework, 123 - Intermediate support rod, 124 - Second framework fixing and strengthening plate, 125 - Intermediate guide rod, 126 - Guide rod hinge mounting seat, 127 - Fixing and strengthening rod, 128 - Fixed support rod, 129 - Telescopic rod guide sleeve, 13 - Top support framework, 131 - Inner arc surface top framework, 132 - Outer arc surface top framework, 133 - Intermediate support rod, 134 - Framework fixing and strengthening plate, 135 - Intermediate guide rod, 136 - Guide rod hinge mounting seat, 137 - Fixing and strengthening rod, 138 - Second telescopic rod, 139 - Telescopic rod mounting seat;

[0041] 2 - Inner and outer arc surface support module: 21 - Arc surface support rod, 22 - Arc surface support plate, 23 - Arc surface support rod mounting seat, 24 - Arc surface support plate mounting rod, 25 - First two - side support plate fine - tuning jack, 26 - First support plate fine - tuning screw, 27 - First two - end jack;

[0042] 3 - Side support module: 31 - Side support module, 311 - Side support rod, 312 - Side support plate, 313 - Side support telescopic rod, 314 - Side support plate mounting rod, 315 - Second two - side support plate fine - tuning jack, 316 - Second support plate fine - tuning screw, 317 - Second two - end jack, 32 - Corner support module, 321 - Outer arc surface corner strengthening support rod, 322 - Corner side support telescopic rod, 323 - Outer arc surface corner rotating support rod, 324 - Outer arc surface corner adjustment rod, 325 - Corner strengthening and fixing support rod;

[0043] 4 - Bottom support module: 41 - Bottom circular tube support leg, 42 - Support leg transverse strengthening rod, 43 - Support leg longitudinal strengthening rod, 44 - Support leg strengthening frame sliding sleeve, 45 - Support leg adjustment rod, 46 - Bull - eye bearing, 47 - Circlip positioning pin. Detailed implementation mode

[0044] The above - mentioned content of the present invention will be further described in detail in the form of specific implementation modes below. However, it should not be understood that the scope of the above - mentioned subject matter of the present invention is limited to the following embodiments. All technologies implemented based on the above - mentioned content of the present invention belong to the scope of the present invention.

[0045] Such as Figure 1As shown in the figure, the present invention provides a telescopic internal support device, including: a telescopic support skeleton 1, an inner and outer arc surface support module 2, a side support module 3, and a bottom support module 4; as Figure 2 As shown, the telescopic support skeleton 1 is composed of a bottom support skeleton 11, a middle support skeleton 12, and a top support skeleton 13; the bottom support skeleton 11 is located at the bottom layer of the telescopic support skeleton 1, the middle support skeleton 12 is located at the middle layer of the telescopic support skeleton 1, and the top support skeleton 13 is located at the top layer of the telescopic support skeleton 1; several inner and outer arc surface support modules 2 are installed between the bottom support skeleton 11, the middle support skeleton 12, and the top support skeleton 13; the side support module 3 is composed of a side support module 31 and a corner support module 32, and is installed on both sides of the bottom support skeleton 11, the middle support skeleton 12, and the top support skeleton 13.

[0046] The bottom support skeleton 11, the middle support skeleton 12, and the top support skeleton 13 of the three-layer support skeleton cooperate with each other to slide, so that the telescopic support skeleton 1 can be telescoped. There are 20 inner and outer arc surface support modules 2, which are evenly and symmetrically installed between the skeletons of the bottom support skeleton 11, the middle support skeleton 12, and the top support skeleton 13 through screws. The support directions of the inner and outer arc surface support modules 2 point to the centers of the inner and outer arc surfaces. Among them, the inner and outer arc surface support modules 2 installed on the middle support skeleton 12 are used as fixed supports between the skeletons and do not need to be disassembled during contraction. There are 18 side support modules 3, which are evenly distributed and installed on the sides between the bottom support skeleton 11, the middle support skeleton 12, and the top support skeleton 13 of the three-layer support skeleton in the telescopic support skeleton 1. There are 8 bottom support modules 4, which are evenly distributed and installed on the bottom surface of the telescopic support skeleton 1. The reasonable design and distribution of the support structure of the present invention provide more reliable support for the water tank.

[0047] As Figure 3As shown in the figure, the bottom support framework 11 is composed of an inner arc surface bottom framework 111, an outer arc surface bottom framework 112, an intermediate support rod 113, a first framework fixing and strengthening plate 114, a first telescopic rod 115, a telescopic rod mounting seat 116, a fixing and strengthening rod 117, and a bottom circular tube support leg guide sleeve 118; there are 3 intermediate support rods 113 connected by pins between the inner arc surface bottom framework 111 and the outer arc surface bottom framework 112, and there are 2 first framework fixing and strengthening plates 114 connected by pins on both sides of the 3 intermediate support rods 113; the direction of contraction between the inner arc surface bottom framework 111 and the outer arc surface bottom framework 112 is the transverse contraction; when contracting, the pins used for connection need to be removed from the intermediate support rod 113 and the first framework fixing and strengthening plate 114; there are 12 telescopic rod mounting seats 116 fixedly installed in the corresponding holes of the inner arc surface bottom framework 111 and the outer arc surface bottom framework 112 through screws, 12 first telescopic rods 115 are inserted into the corresponding telescopic rod mounting seats 116, one end of each first telescopic rod 115 is fixed on the telescopic rod mounting seat 116 by a pin, there are 10 fixing and strengthening rods 117, which are fixed on the corresponding holes of the inner arc surface bottom framework 111 and the outer arc surface bottom framework 112 by pins, and the direction of contraction between the bottom support framework 11 and the intermediate support framework 12 is the longitudinal contraction; when contracting, the pins used for connection need to be removed from the fixing and strengthening rod 117; there are 32 bottom circular tube support leg guide sleeves 118 fixed in the corresponding holes of the inner arc surface bottom framework 111 and the outer arc surface bottom framework 112.

[0048] As Figure 4As shown in the figure, the middle support skeleton 12 is composed of an inner arc surface middle skeleton 121, an outer arc surface middle skeleton 122, middle support rods 123, second skeleton fixing and strengthening plates 124, middle guide rods 125, guide rod hinge mounting seats 126, first fixing and strengthening rods 127, fixing support rods 128, and telescopic rod guide sleeves 129; similar to the bottom support skeleton 11, there are 3 middle support rods 123 connected by pins between the inner arc surface middle skeleton 121 and the outer arc surface middle skeleton 122, and there are 2 second skeleton fixing and strengthening plates 124 connected by pins on both sides of the 3 middle support rods 123; there are 4 guide rod hinge mounting seats 126, two of which are symmetrically fixed on the inner arc surface middle skeleton 121 with screws, and the other two are symmetrically fixed on the outer arc surface middle skeleton 122 with screws. There are 2 middle guide rods 125, which are symmetrically installed on the inner arc surface middle skeleton 121 and the outer arc surface middle skeleton 122, and both ends of the middle guide rod 125 are connected to the guide rod hinge mounting seat 126 with screws; when shrinking horizontally, the pins used for connection need to be removed from the middle support rods 123 and the second skeleton fixing and strengthening plates 124. Further, the inner arc surface middle skeleton 121 and the outer arc surface middle skeleton 122 can shrink along the middle guide rod 125; there are 10 first fixing and strengthening rods 127 fixed in the corresponding holes of the inner arc surface middle skeleton 121 and the outer arc surface middle skeleton 122 by pins, and there are 14 fixing support rods 128 fixed in the corresponding holes of the inner arc surface middle skeleton 121 and the outer arc surface middle skeleton 122 by screws. The fixing support rods 128 are hollow rods, which can cooperate with the corresponding first telescopic rods 115 in the bottom support skeleton 11, so that the bottom support skeleton 11 can be shrunk into the middle support skeleton 12 at the bottom layer; there are 12 telescopic rod guide sleeves 129 fixed in the corresponding holes of the inner arc surface middle skeleton 121 and the outer arc surface middle skeleton 122 by screws.

[0049] As Figure 5As shown in the figure, the top support framework 13 is composed of an inner arc surface top framework 131, an outer arc surface top framework 132, intermediate support rods 133, framework fixing and strengthening plates 134, intermediate guide rods 135, guide rod hinge mounting seats 136, second fixing and strengthening rods 137, second telescopic rods 138, and telescopic rod mounting seats 139; similar to the intermediate support framework 12, three intermediate support rods 133 are connected by pins between the inner arc surface top framework 131 and the outer arc surface top framework 132, and two framework fixing and strengthening plates 134 connected by pins are arranged on both sides of the three intermediate support rods 133; there are four guide rod hinge mounting seats 136, two of which are symmetrically fixed on the inner arc surface top framework 131 with screws, and the other two are symmetrically fixed on the outer arc surface top framework 132 with screws. Two intermediate guide rods 135 are symmetrically installed on the inner arc surface top framework 131 and the outer arc surface top framework 132, and both ends of the intermediate guide rods 135 are connected to the guide rod hinge mounting seats 136 with screws. When contracting horizontally, the pins used for connection need to be removed from the intermediate support rods 133 and the framework fixing and strengthening plates 134. Further, the inner arc surface top framework 131 and the outer arc surface top framework 132 can contract along the intermediate guide rods 135; ten second fixing and strengthening rods 137 are fixed on the corresponding holes of the inner arc surface top framework 131 and the outer arc surface top framework 132 by inserting pins. Twelve second telescopic rods 138 are inserted into the corresponding telescopic rod mounting seats 139, and one end of each second telescopic rod 138 is fixed to the telescopic rod mounting seat 139 by a pin. When contracting longitudinally, the pins used for connection need to be removed from the second fixing and strengthening rods 137, so that the second telescopic rods 138 in the top support framework 13 can cooperate with the corresponding telescopic rod guide sleeves 129 in the intermediate support framework 12, enabling the top support framework 13 to contract into the intermediate support framework 12 at the top layer; among them, the positions of the first telescopic rods 115 of the bottom support framework 11 and the second telescopic rods 138 of the top support framework 13 are staggered from each other, which can avoid interference during contraction.

[0050] As Figure 6As shown in the figure, the inner and outer arc surface support module 2 is composed of an arc surface support rod 21, an arc surface support plate 22, an arc surface support rod mounting seat 23, an arc surface support plate mounting rod 24, a first two-side support plate fine-tuning ejector rod 25, a first support plate fine-tuning screw 26, and a first two-end ejector rod 27. Both ends of the arc surface support rod 21 are connected with the arc surface support rod mounting seat 23 through pins. The arc surface support rod mounting seat 23 is installed at the corresponding positions on the inner arc surface skeleton and the outer arc surface skeleton of each part of the skeleton through screws. The first support plate fine-tuning screw 26 is installed in the middle position of the arc surface support rod 21. The arc surface support plate mounting rod 24 is connected to the first support plate fine-tuning screw 26. The first two-end ejector rod 27 is installed at both ends of the arc surface support rod 21, one at each end. The first two-side support plate fine-tuning ejector rod 25 is connected to the first two-end ejector rod 27 by a set screw. Further, the arc surface support plate 22 is fixed to the arc surface support plate mounting rod 24 and the two first two-side support plate fine-tuning ejector rods 25 through pins to finely adjust the inner and outer arc surface support module 2 to achieve complete support of the water tank.

[0051] As Figure 7 shown, the side support module 31 is composed of a side support rod 311, a side support plate 312, a side support telescopic rod 313, a side support plate mounting rod 314, a second two-side support plate fine-tuning ejector rod 315, a second support plate fine-tuning screw 316, and a second two-end ejector rod 317. Both ends of the side support rod 311 are connected with the side support telescopic rod 313 through pins. The side support telescopic rod 313 is installed on the left and right side pipe orifices of the inner arc surface bottom skeleton 111, the inner arc surface middle skeleton 121, the inner arc surface top skeleton 131, the outer arc surface bottom skeleton 112, the outer arc surface middle skeleton 122, and the outer arc surface top skeleton 132 through pins. There are pin slots at different positions on the side support telescopic rod 313. After removing the pin, it can be contracted in the side pipe orifice. The second support plate fine-tuning screw 316 is installed in the middle position of the side support rod 311. The side support plate mounting rod 314 is connected to the second support plate fine-tuning screw 316. The second two-end ejector rod 317 is installed at both ends of the side support rod 311, one at each end. The second two-side support plate fine-tuning ejector rod 315 is connected to the second two-end ejector rod 317 by a set screw. The side support plate 312 is fixed to the arc surface support plate mounting rod 24 and the two second two-side support plate fine-tuning ejector rods 315 through pins. The above side support plate 312, side support plate mounting rod 314, second two-side support plate fine-tuning ejector rod 315, second support plate fine-tuning screw 316, and second two-end ejector rod 317 form a side support unit.

[0052] As Figure 8 、 9As shown in the figure, the corner support module 32 is composed of an outer arc surface corner strengthening support rod 321, a corner side support telescopic rod 322, an outer arc surface corner rotating support rod 323, an outer arc surface corner adjusting rod 324, and a corner strengthening and fixing support rod 325. The connection between the corner support module 32 and the telescopic support skeleton 1 is borne by the outer arc surface corner rotating support rod 323 and the corner strengthening and fixing support rod 325. Among them, the outer arc surface corner rotating support rod 323 is installed on the corner position fixing and strengthening rods 117, the first fixing and strengthening rod 127, and the second fixing and strengthening rod 137 on the outer arc surface bottom skeleton 112, the outer arc surface middle skeleton 122, and the outer arc surface top skeleton 132. The corner strengthening and fixing support rod 325 is fixed at the position of the side support telescopic rod 313 above the position of the corner support module 32 through a pin. The corner side support telescopic rod 322 is fixed on the outer arc surface corner rotating support rod 323 through a pin, and the outer arc surface corner strengthening support rod 321 is also fixed on the outer arc surface corner rotating support rod 323 through a pin. A side support rod 311 is fixed on the corner side support telescopic rod 322 through a pin. Both the outer arc surface corner strengthening support rod 321 and the side support rod 311 are connected with a side support unit composed of a side support plate 312, a side support plate mounting rod 314, a second two-side support plate fine-tuning jack 315, a second support plate fine-tuning screw 316, and a second two-end jack 317. One end of the outer arc surface corner adjusting rod 324 is installed at the hinge position on the outer arc surface corner strengthening support rod 321 through a screw, and the other end is installed at the hinge position on the corner strengthening and fixing support rod 325 through a screw.

[0053] As Figure 10 shown, the bottom support module 4 is composed of a bottom round tube support leg 41, a support leg transverse strengthening rod 42, a support leg longitudinal strengthening rod 43, a support leg strengthening frame sliding sleeve 44, a support leg adjusting rod 45, and a bull's-eye bearing 46. There are 4 support leg strengthening frame sliding sleeves 44, which are arranged on 4 bottom round tube support legs 41 through positioning pins. There are 2 support leg transverse strengthening rods 42 and 2 support leg longitudinal strengthening rods 43, which are respectively connected to the support leg strengthening frame sliding sleeves 44 in the horizontal and vertical directions through positioning pins. There are 4 support leg adjusting rods 45, which are connected to the lower parts of 4 bottom round tube support legs 41, and 4 bull's-eye bearings 46 are connected to the lower parts of 4 support leg adjusting rods 45. In order to make the bottom round tube support legs 41 on each bottom support module 4 correspond one by one with the bottom round tube support leg guide sleeves 118 on the bottom support skeleton 11, 8 bottom support modules 4 are required. The bottom round tube support legs 41 can slide on the bottom round tube support leg guide sleeves 118, so that the bottom support module 4 can be telescoped.

[0054] As Figure 11 and Figure 12As shown, the retractable internal support device of the present invention can achieve rapid support for the water tank structure during use. The specific working process is as follows: Before being put into use, for the convenience of transportation and installation, the retractable internal support device is in a contracted state. When in use, first place the retractable internal support device flat, and several workers will expand it horizontally and vertically on both sides of the device, and install the support modules for the inner and outer arc surfaces, sides, and bottom of each part. Subsequently, turn the bottom of the expanded retractable internal support device downward and vertically hoist it onto the bottom plate of the un-welded water tank. Finally, cover the other surfaces of the water tank. After the surface joints of the water tank are in close contact, start to fine-tune the support modules for the inner and outer arc surfaces, sides, and bottom. Finally, achieve the support for the water tank structure to provide subsequent workers with welding and pouring inside the water tank. In addition, considering that there will be blind spots during the welding inside the water tank, for this, the present invention is provided with movable support modules, and pins can be inserted for support during installation. For the blind spot positions, under the condition of ensuring the stability of other supports, the movable support modules at the blind spot positions can be detached, and the welding at the blind spot positions can be completed. In addition, the welding space inside the water tank is limited, so the present invention needs to ensure the free welding space for welders. The welding space left at the corner positions of the outer arc surface in the present invention is very limited. Therefore, the corner support modules are set to be rotatable and retractable structures. When welding the corner of the outer arc surface, the corresponding part of the corner support module can be rotated and retracted to give welders enough welding space. The fine-tuning function of each part of the support in the present invention ensures that it can be completely fitted with the inner surface of the water tank, avoiding the occurrence of suspended support and resulting in accidents, and greatly improving the stability and safety of the support. A retractable internal support device of the present invention has the characteristics of high and rapid support efficiency, good stability performance, and convenient transportation and installation, and has broad application prospects.

[0055] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the relevant art, without departing from the scope of the technical solution of the present invention, based on the technical essence of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An internal support device for a nuclear industry water tank, characterized in that: It includes a telescopic support framework and inner and outer arc surface support modules, side support modules, and bottom support modules for supporting and installing the telescopic support framework. The telescopic support framework is composed of a bottom support framework, a middle support framework, and a top support framework that are telescopically fitted together, enabling the overall telescopic support framework to be telescopic in at least one dimension of height, length, and width; the inner and outer sides of the telescopic support framework are both arc surfaces. Inner and outer arc surface support modules are respectively installed on the inner and outer sides of the telescopic support framework; side support modules are respectively installed on the left and right sides of the telescopic support framework; and a bottom support module is installed at the bottom of the telescopic support framework.

2. The internal support device for a nuclear industry water tank according to claim 1, wherein: The inner and outer arc surface support modules include an inner arc surface support module installed across the inner sides of the bottom support framework, the middle support framework, and the top support framework, whose support direction points to the center of the inner arc surface of the telescopic support framework, and an outer arc surface support module installed across the outer sides of the bottom support framework, the middle support framework, and the top support framework, whose support direction points to the center of the outer arc surface of the telescopic support framework.

3. The internal support device for a nuclear industry water tank according to claim 1, characterized in that: The bottom support framework includes an inner arc surface bottom framework and an outer arc surface bottom framework, as well as a detachable middle support rod and a detachable first framework fixing and strengthening plate connecting the inner arc surface bottom framework and the outer arc surface bottom framework. The direction of contraction between the inner arc surface bottom framework and the outer arc surface bottom framework is defined as horizontal contraction, and first telescopic rods and detachable fixing and strengthening rods are installed on the inner arc surface bottom framework and the outer arc surface bottom framework. The direction of contraction between the bottom support framework and the middle support framework is defined as longitudinal contraction; bottom circular tube support leg guide sleeves are provided on the inner arc surface bottom framework and the outer arc surface bottom framework.

4. The internal support device for a nuclear industry water tank according to claim 3, characterized in that: The middle support framework includes an inner arc surface middle framework and an outer arc surface middle framework, as well as a detachable middle support rod, a detachable second framework fixing and strengthening plate, and a telescopic middle guide rod connecting the inner arc surface middle framework and the outer arc surface middle framework. The direction of contraction between the inner arc surface middle framework and the outer arc surface middle framework is defined as horizontal contraction, and detachable first fixing and strengthening rods and fixing support rods are installed on the inner arc surface middle framework and the outer arc surface middle framework. The fixing support rod is a hollow rod that can cooperate with the corresponding first telescopic rod in the bottom support framework, enabling the first telescopic rod to contract into the fixing support rod.

5. The internal support device for a nuclear industry water tank according to claim 4, characterized in that: The top support framework includes an inner arc surface top framework and an outer arc surface top framework, as well as a detachable middle support rod, a detachable framework fixing and strengthening plate, and a telescopic middle guide rod connecting the inner arc surface top framework and the outer arc surface top framework. The direction of contraction between the inner arc surface top framework and the outer arc surface top framework is defined as horizontal contraction, and detachable second fixing and strengthening rods and second telescopic rods are installed on the inner arc surface top framework and the outer arc surface top framework. The positions of the second telescopic rods are staggered from the positions of the first telescopic rods.

6. The internal support device for a nuclear industry water tank according to claim 3, characterized in that: The inner and outer arc surface support module includes an arc surface support rod and an arc surface support plate. The two ends of the arc surface support rod are detachably connected with arc surface support rod mounting seats, and the arc surface support rod mounting seats are used for mounting on the bottom support framework, the middle support framework and the top support framework. A first support plate fine adjustment screw is arranged in the middle between the arc surface support rod and the arc surface support plate, and the first support plate fine adjustment screw is detachably connected with the arc surface support plate through an arc surface support plate mounting rod. First two-end ejector rods are respectively installed at both ends between the arc surface support rod and the arc surface support plate, and the first two-end ejector rods are detachably connected with the arc surface support plate through first two-side support plate fine adjustment ejector rods.

7. The internal support device for a nuclear industry water tank according to claim 3, characterized in that: The side support module is composed of a side support module and a corner support module.

8. The internal support device for a nuclear industry water tank according to claim 7, characterized in that: The side support module includes a side support rod, a side support plate and a side support telescopic rod. The two ends of the side support rod are detachably connected with side support telescopic rods, and the side support telescopic rods are used for mounting on the bottom support framework, the middle support framework and the top support framework. A second support plate fine adjustment screw is arranged in the middle between the side support rod and the side support plate, and the second support plate fine adjustment screw is detachably connected with the side support plate through a side support plate mounting rod. Second two-end ejector rods are respectively installed at both ends between the side support rod and the side support plate, and the second two-end ejector rods are detachably connected with the side support plate through second two-side support plate fine adjustment ejector rods.

9. The internal support device for the nuclear industry water tank according to claim 8, characterized in that: The corner support module includes an outer arc surface corner strengthening support rod, a corner side support telescopic rod, an outer arc surface corner rotating support rod, an outer arc surface corner adjusting rod and a corner strengthening fixing support rod. The outer arc surface corner rotating support rod is used for mounting on the bottom support framework, the middle support framework and the top support framework. The corner strengthening fixing support rod is detachably connected to the side support telescopic rod. The corner side support telescopic rod and the outer arc surface corner strengthening support rod are respectively detachably connected to the outer arc surface corner rotating support rod, and the corner side support telescopic rod is detachably connected to the side support rod. One end of the outer arc surface corner adjusting rod is detachably connected to the outer arc surface corner strengthening support rod, and the other end is detachably connected to the corner strengthening fixing support rod.

10. The internal support device for the nuclear industry water tank according to claim 2, wherein: The bottom support module includes bottom round tube support legs, support leg transverse strengthening rods and support leg longitudinal strengthening rods. A support leg strengthening frame sliding sleeve is detachably connected to the bottom round tube support legs, and the support leg transverse strengthening rods and the support leg longitudinal strengthening rods are respectively detachably installed on the support leg strengthening frame sliding sleeves. A support leg adjusting rod is installed below the bottom round tube support legs, and a bull's eye bearing is arranged below the support leg adjusting rod. The bottom round tube support legs correspond to the bottom round tube support leg guide sleeves on the bottom support framework one by one, so that the bottom round tube support legs can slide into the bottom round tube support leg guide sleeves.

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