A special hoisting system and method for a nuclear power plant reactor steel reinforced full module

Abstract

The application discloses a special hoisting system and method for a nuclear power plant reactor steel bar full module, and relates to the technical field of nuclear power construction and construction, wherein the system comprises a steel mesh support assembly, a hoisting cable assembly, a cable force monitoring assembly, a hoisting internal force monitoring assembly, a deformation monitoring assembly and a leveling counterweight assembly; the hoisting cable assembly comprises a main hoisting cable component, a forked adjustable secondary hoisting cable component and a square hoisting device; the cable force monitoring assembly realizes real-time monitoring of the tension of the hoisting cable; the hoisting internal force monitoring assembly realizes real-time monitoring of the internal force of the hoisting cable assembly during hoisting; the deformation monitoring assembly comprises a photosensitive displacement signal monitor, a laser and a signal processing terminal; and the leveling counterweight assembly realizes adjustment of the levelness of the square hoisting device. The application also provides a hoisting method, which effectively controls construction precision, significantly improves construction efficiency and construction quality, simplifies the construction process, shortens the installation period and reduces safety risks.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear power construction, and in particular to a special hoisting system and method for a nuclear power plant reactor steel reinforcement full module. BACKGROUND

[0002] The VVER-1200 reactor type is the latest third-generation nuclear power technology, and developing the modular construction technology of VVER-1200 conforms to the current nuclear power technology innovation concept and research and development needs.

[0003] The VVER-1200 nuclear power plant reactor building is a special building for a million-kilowatt pressurized water reactor nuclear power plant type that fully meets the third-generation nuclear power technology indicators and is designed and developed using the highest international safety standards.

[0004] The steel reinforcement full module for building the building is designed with a steel mesh support system according to its geometric size and wall steel reinforcement distribution. Since the wall vertical reinforcement generally uses large-diameter steel reinforcement with a diameter of 32 mm and 40 mm, and the steel reinforcement is dense, it results in low steel reinforcement construction efficiency, great construction difficulty, long construction period, and high labor intensity and cost.

[0005] The traditional way of steel reinforcement engineering currently uses manual operation to bind steel reinforcement on site, which has the following shortcomings:

[0006] (1) The on-site operation amount is large, the efficiency of steel reinforcement binding is low, and the time occupied in the civil construction is long, which requires a large amount of investment in manpower and machinery and other resources, and does not conform to the current modernization, mechanization, and modular construction mode;

[0007] (2) The wall steel reinforcement has a large diameter, and the layer height, size, and weight are large, which makes the binding difficult and has high safety risks, especially when working at a high place;

[0008] (3) A large number of temporary storage yards need to be set up on the construction site to store steel reinforcement, and a large amount of construction waste is generated during the steel reinforcement binding process, which makes it difficult to control the safety and civilization of the construction site.

[0009] (4) Although some steel mesh construction methods have appeared in the industry, the method is mainly used for grouting piles or bridge piers, uses single-piece construction, has low efficiency, connects the steel meshes through lap joints or welding joints, is not suitable for large-diameter steel reinforcement mechanical connection construction, and needs to be reinforced by spot welding to prevent deformation; it can only be used in one wall at a time, and the effect of modular construction is not obvious. The steel reinforcement cage module produced by the existing method cannot guarantee the binding accuracy of the steel reinforcement, which easily leads to the failure to connect with the on-site reserved steel reinforcement, thereby affecting the construction progress. SUMMARY

[0010] The present application aims at the problems and deficiencies of the prior art, and provides a special hoisting system and method for a nuclear power plant reactor steel bar full module, which effectively controls construction precision, significantly improves construction efficiency and construction quality, simplifies construction procedures, shortens installation period, and reduces safety risks.

[0011] To solve the above problems, the present application adopts the following technical solutions:

[0012] The first object of the present application is to provide a special hoisting system for a nuclear power plant reactor steel bar full module, which comprises a steel mesh support assembly, a hoisting sling assembly, a cable force monitoring assembly, an internal force monitoring assembly, a deformation monitoring assembly and a leveling counterweight assembly, wherein:

[0013] The steel mesh support assembly comprises a profile steel column, a crossbeam, an inclined strut beam and a short beam, the crossbeam and the inclined strut beam are connected between two adjacent profile steel columns, and the short beam is connected to the profile steel column to bear the self-weight of the steel mesh;

[0014] The hoisting sling assembly comprises a main hoisting sling component, a forked adjustable secondary hoisting sling component and a square sling, the bottom of the square sling is uniformly connected with a first lifting lug plate;

[0015] The cable force monitoring assembly comprises a pin shaft type cable force sensor installed in a lifting lug hole, a signal amplifier, a wireless communication module and a terminal device, the terminal device is adapted to realize real-time monitoring of the hoisting sling tension in the form of a dynamic graph;

[0016] The internal force monitoring assembly comprises a vibrating wire displacement meter installed on the hoisting sling assembly and an intelligent signal reading instrument, the vibrating wire displacement meter is connected to the intelligent signal reading instrument through a lead wire, the vibrating wire displacement meter monitors the internal force of the hoisting sling assembly in real time during hoisting, and transmits the recorded test data to the intelligent signal reading instrument;

[0017] The deformation monitoring assembly comprises a photosensitive displacement signal monitor, a laser and a signal processing terminal installed on the steel mesh support assembly, the signal output end of the laser is opposite to the signal receiving end of the photosensitive displacement signal monitor; the signal processing terminal automatically analyzes the collected data, and when the deformation displacement value of the steel mesh support assembly reaches or exceeds the dangerous deformation value, the signal processing terminal sends an alarm signal through an alarm system;

[0018] The leveling counterweight assembly comprises a counterweight block installed on the square sling, and the square sling levelness is adjusted by adding or reducing the counterweight block according to the hoisting flatness.

[0019] Further, the profile steel column is welded by channel steel or I-beam, and a second lifting lug plate is welded on the top of the profile steel column.

[0020] Further, the square lifting tool comprises a horizontal lifting beam, a vertical connecting beam and a diagonal bracing beam, wherein:

[0021] The horizontal lifting beam comprises a first horizontal beam, a second horizontal beam, a third horizontal beam and a fourth horizontal beam arranged in parallel, and the lengths of the first horizontal beam, the third horizontal beam and the fourth horizontal beam increase in turn, and the length of the second horizontal beam is smaller than that of the first horizontal beam.

[0022] The vertical connecting beam comprises a first vertical beam, a second vertical beam, a third vertical beam, a fourth vertical beam, a fifth vertical beam, a sixth vertical beam, a seventh vertical beam, an eighth vertical beam, a ninth vertical beam and a tenth vertical beam arranged in parallel in turn, and the first vertical beam and the tenth vertical beam are vertically connected on the two sides of the third horizontal beam and the fourth horizontal beam respectively; the length of the second vertical beam is smaller than that of the fourth vertical beam.

[0023] The fourth vertical beam, the sixth vertical beam, the seventh vertical beam and the eighth vertical beam are evenly distributed and vertically connected between the first horizontal beam and the fourth horizontal beam, the seventh vertical beam and the eighth vertical beam extend outward by a certain length on the side close to the fourth horizontal beam, and the length of the eighth vertical beam is greater than that of the seventh vertical beam.

[0024] The diagonal bracing beam comprises a first diagonal bracing beam, a second diagonal bracing beam, a third diagonal bracing beam, a fourth diagonal bracing beam, a fifth diagonal bracing beam and a sixth diagonal bracing beam, one end of the first diagonal bracing beam is connected to the left side of the fourth horizontal beam, the other end is connected to the top side of the second vertical beam, and the middle part is connected to the first vertical beam and the third horizontal beam, the second diagonal bracing beam is connected to the top of the second vertical beam and the fourth vertical beam, and the third vertical beam is vertically connected between the second diagonal bracing beam and the third horizontal beam; the third diagonal bracing beam is connected to the left side of the first horizontal beam and the second horizontal beam, the fourth diagonal bracing beam is connected between the sixth vertical beam and the fourth horizontal beam, the fifth diagonal bracing beam is connected between the tenth vertical beam, the ninth vertical beam and the fourth horizontal beam, and the sixth diagonal bracing beam is connected between the fourth horizontal beam, the seventh vertical beam, the eighth vertical beam and the ninth vertical beam.

[0025] Further, the main sling component comprises a rotating boom connected with the crane double hook head, a first adjuster connected with the lower end of the rotating boom, a sling distributor connected with the lower end of the first adjuster, and a sling cluster connected with the lower end of the sling distributor.

[0026] Further, the sling distributor comprises an upper sling ear plate, a muscle plate, an upper cover plate, a circular arc plate, a lower sling ear long plate, and a hinged chain plate.

[0027] The bottom of the two upper sling ear plates is connected with the upper cover plate in parallel and vertically, the muscle plates are uniformly distributed and connected with the upper sling ear plates and the upper cover plate in vertical symmetry, the circular arc plate is connected with the center lower surface of the upper cover plate vertically, the lower sling ear long plates are uniformly distributed and connected with the outer circumferential profile surface of the circular arc plate vertically, the top of the lower sling ear long plates is connected with the lower surface of the upper cover plate, and the hinged chain plate is hinged on the lower sling ear long plates.

[0028] Further, the forked adjustable secondary sling component comprises an upper arc-shaped lock structure connected with the first sling ear plate, a pulley structure, and a lower arc-shaped lock structure connected with the second sling ear plate, the pulley structure comprises an upper pulley connected with the upper arc-shaped lock structure, a steel wire rope loop, and a lower pulley connected with the lower arc-shaped lock structure, and the steel wire rope loop is wound between the upper pulley and the lower pulley.

[0029] Further, the photosensitive displacement signal monitor is a PSD, a CCD, or a fiber panel.

[0030] Further, the number of the sling clusters is 16 groups.

[0031] The second object of the present application is to provide a hoisting method for a nuclear power plant reactor steel reinforcement full module, which adopts the special hoisting system for the nuclear power plant reactor steel reinforcement full module, and comprises the following steps:

[0032] S 100 : The top end of the main sling component is connected with the crane double hook head, the upper end of the sling cluster is connected with the sling distributor 213, and the levelness of the sling distributor is adjusted through the first adjuster.

[0033] S 200 : The lower end of the sling cluster is connected with the sling ear on the square lifting tool, and the levelness of the square lifting tool is adjusted through the pulley structure.

[0034] S 300: The counterweight is applied on the square lifting appliance, and the weight, position and application mode of the counterweight are calculated and analyzed by finite element modeling, so that the gravity center position of the square lifting appliance is adjusted;

[0035] S 400 : The cable force monitoring assembly and the lifting internal force monitoring assembly are pre-installed on each sling cluster, the stress of the sling cluster in the lifting process is detected, and the stress exceeding the rated load is prevented;

[0036] S 500 : The no-load trial lifting simulation is carried out, the pulley structure is used to control the autorotation of the steel bar full module during the trial lifting, the leveling counterweight assembly is installed on the square lifting appliance, and the total station instrument is used to detect the levelness of the lower opening of the steel bar full module;

[0037] S 600 : The deformation monitoring assembly is installed on the steel mesh support assembly, and is used for real-time monitoring of the deformation displacement value of the steel mesh support assembly;

[0038] S 700 : During the formal lifting, the hook of the crane is slowly lifted at a speed of ≤380mm / min, the steel bar full module is separated from the ground by 100mm, and is suspended and stationary for 6 minutes, and the deformation of the above-mentioned sling assembly, the lifting lug and the foundation settlement value of the crane chassis area are visually inspected;

[0039] S 800 : After the visual inspection is qualified, the hook of the crane is slowly lifted at a speed of ≤380mm / min, and the steel bar full module is separated from the ground to the target distance, and then the lifting is stopped and the steel bar full module is suspended;

[0040] S 900 : The crane moves forward along the paving direction of the roadbed box at a walking speed of ≤1.8m / min, and stops walking when reaching the lifting station point; the lifting arm is slightly adjusted and rotated, so that the center of the steel bar full module is centered with the positioning center;

[0041] S 1000 : The hook of the crane is slowly lowered at a speed of ≤380mm / min, so that the steel bar full module is positioned.

[0042] Further, in step S 500 , an observation point is arranged at each corner point position 1500mm above the lower edge of the steel bar full module, and the distance between the observation point and the supporting surface is measured by using a steel ruler.

[0043] Compared with the prior art, the present application has obvious advantages and beneficial effects, which are embodied in the following aspects:

[0044] According to the structural characteristics of the steel bar full module, a reasonable steel bar mesh support assembly, a sling assembly, a square lifting appliance and a connection scheme are designed, the sling assembly is connected with the steel bar mesh support assembly and the lifting lug on the steel bar full module respectively, the balance of the stress on the outer side and the inner side of the steel bar full module is ensured, and the relative deformation of the outer side and the inner side of the steel bar full module during hoisting is controlled; when the levelness of the square lifting appliance is adjusted, the counterweight mode of the counterweight block is used, the gravity center position of the square lifting appliance is coarsely adjusted by applying the counterweight, and the gravity center position of the steel bar full module is accurately adjusted through the pulley structure during trial hoisting, so that the gravity center of the module is consistent with the center, and the levelness of the lower opening of the steel bar full module during hoisting is ensured; the structure and shape of the square lifting appliance can be designed according to the structure and shape of the steel bar full module, so that the special lifting appliance can be applied to various hoists, the special sling assembly structure is simple, convenient to connect and easy to construct; during hoisting, the special sling assembly and the hoisting method are adopted, and combined with various technologies such as finite element modeling calculation and analysis technology, strain force measurement technology, total station detection technology and regulator, the deformation and stress of the steel bar full module can be effectively reduced, the hoisting requirements of the steel bar full module are met, and the risk coefficient of hoisting is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 It is a structural schematic view of a special hoisting system of a nuclear power plant reactor steel bar full module in the embodiment of the present application;

[0046] Figure 2 It is a front view structural schematic view of a sling assembly in the embodiment of the present application;

[0047] Figure 3 It is a three-dimensional structural schematic view of a steel bar mesh support assembly in the embodiment of the present application;

[0048] Figure 4 It is a front view structural schematic view of a main sling component in the embodiment of the present application;

[0049] Figure 5 It is a front view structural schematic view of a fork lug type adjustable secondary sling component in the embodiment of the present application.

[0050] Figure 6 It is a structural schematic view of a square lifting appliance in the embodiment of the present application;

[0051] Figure 7 It is a structural schematic view of a sling distributor in the embodiment of the present application;

[0052] Figure 8 It is a structural schematic view of a special hoisting system of a nuclear power plant reactor steel bar full module in the embodiment of the present application;

[0053] Figure 9 It is a structural schematic view of a cable force monitoring assembly in the embodiment of the present application;

[0054] Figure 10 Fig. 1 is a structural schematic diagram of a hoisting internal force monitoring assembly in an embodiment of the present application;

[0055] Figure 11 Fig. 2 is a structural schematic diagram of a deformation monitoring assembly in an embodiment of the present application.

[0056] Legend of reference signs:

[0057] 1 - steel mesh support assembly;

[0058] 11 - steel column; 111 - second lifting lug plate; 12 - cross beam; 13 - inclined bracing beam; 14 - short beam;

[0059] 2 - hoisting rigging assembly;

[0060] 21 - main hoisting cable component; 211 - rotating hoisting boom; 212 - first adjuster; 2121 - main hoisting cable; 213 - hoisting cable distributor; 2131 - upper lifting lug plate; 2132 - web plate; 2133 - upper cover plate; 2134 - circular arc plate; 2135 - lower lifting lug long plate; 2136 - hinged chain plate; 214 - hoisting cable cluster;

[0061] 22 - forked ear type adjustable secondary hoisting cable component; 221 - upper arc-shaped lock catch structure; 222 - pulley structure; 2221 - upper pulley; 2222 - wire rope loop; 2223 - lower pulley; 223 - lower arc-shaped lock catch structure;

[0062] 23 - square lifting appliance;

[0063] 231 - horizontal hoisting beam; 2311 - first horizontal beam; 2312 - second horizontal beam; 2313 - third horizontal beam; 2314 - fourth horizontal beam;

[0064] 232 - vertical connecting beam; 2321 - first vertical beam; 2322 - second vertical beam; 2323 - third vertical beam; 2324 - fourth vertical beam; 2325 - fifth vertical beam; 2326 - sixth vertical beam; 2327 - seventh vertical beam; 2328 - eighth vertical beam; 2329 - ninth vertical beam; 2320 - tenth vertical beam;

[0065] 233 - inclined bracing beam; 2331 - first inclined bracing beam; 2332 - second inclined bracing beam; 2333 - third inclined bracing beam; 2334 - fourth inclined bracing beam; 2335 - fifth inclined bracing beam; 2336 - sixth inclined bracing beam;

[0066] 234 - first lifting lug plate;

[0067] 3 - cable force monitoring assembly;

[0068] 31-pivot pin type cable force sensor; 32-signal amplifier; 33-wireless communication module; 34-terminal device;

[0069] 4-lifting internal force monitoring assembly;

[0070] 41-vibrating wire displacement meter; 42-intelligent signal reader;

[0071] 5-deformation monitoring assembly;

[0072] 51-photosensitive displacement signal monitor; 52-laser; 53-signal processing terminal;

[0073] 6-leveling counterweight assembly;

[0074] 100-crane; 200-special lifting system; 300-reinforcing steel full module. DETAILED DESCRIPTION

[0075] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0076] Please refer to Figures 1-11 The embodiment of the present application provides a special lifting system for a reinforcing steel full module of a nuclear power plant reactor, and the special lifting system 200 comprises a reinforcing mesh support assembly 1, a lifting sling assembly 2, a cable force monitoring assembly 3, a lifting internal force monitoring assembly 4, a deformation monitoring assembly 5 and a leveling counterweight assembly 6, wherein:

[0077] The reinforcing mesh support assembly 1 comprises a profile steel column 11, a cross beam 12, an inclined bracing beam 13 and a short beam 14, the cross beam 12 and the inclined bracing beam 13 are connected between adjacent two profile steel columns 11, and the short beam 14 is connected to the profile steel column 11 for bearing the self-weight of the reinforcing mesh.

[0078] The lifting sling assembly 2 comprises a main sling component 21, a forked ear type adjustable secondary sling component 22 and a square sling 23, and the bottom of the square sling 23 is uniformly distributed with the first lifting lug plate 234 connected thereto;

[0079] The cable force monitoring assembly 3 comprises a pivot pin type cable force sensor 31 installed in the lifting lug hole, a signal amplifier 32, a wireless communication module 33 and a terminal device 34, and the terminal device 34 is suitable for realizing real-time monitoring of the lifting sling force in the form of a dynamic diagram.

[0080] The lifting internal force monitoring assembly 4 comprises a vibrating wire displacement meter 41 and an intelligent signal reader 42 installed on the lifting sling assembly 2, the vibrating wire displacement meter 41 is connected to the intelligent signal reader 42 through a lead wire, the vibrating wire displacement meter 41 monitors the internal force of the structure of the lifting sling assembly 2 in real time during the lifting process, and transmits the recorded test data to the intelligent signal reader 42.

[0081] The deformation monitoring assembly 5 comprises a photosensitive displacement signal monitor 51, a laser 52 and a signal processing terminal 53, the signal output end of the laser 52 is opposite to the signal receiving end of the photosensitive displacement signal monitor 51, and the signal processing terminal 53 automatically analyzes the collected data, and when the deformation displacement value of the reinforcing mesh support assembly 1 reaches or exceeds the dangerous deformation value, the signal processing terminal 53 sends an alarm signal through an alarm system.

[0082] The leveling counterweight assembly 6 comprises counterweight blocks installed on the square lifting appliance 23, and the horizontal degree of the square lifting appliance 23 is adjusted by adding or reducing the counterweight blocks according to the lifting flatness.

[0083] The reinforcing mesh support assembly 1 in the embodiment is composed of a type steel column support system according to the geometric size of the internal structure wall and the reinforcing bar distribution form, the column is welded by channel steel or I-beam, small cross beams are welded on the column and used for bearing the self-weight of the reinforcing mesh, and the column and the column are welded with cross beams and inclined braces to increase the overall rigidity.

[0084] According to the complex geometric size form of the module, inclined braces between single wall bodies and wall bodies are added to increase the overall stability, and lug plates are welded on the module support columns and used as upper lifting lugs to realize hoisting.

[0085] Specifically, please refer to Figure 3 In the embodiment of the present application, the type steel column 11 is welded by channel steel or I-beam, and the second lug plate 111 is further welded on the top of the type steel column 11.

[0086] Specifically, in the embodiment, the reinforcing mesh support assembly 1 adopts type steel columns as supports, which is convenient to obtain materials and can ensure the structural strength.

[0087] Specifically, please refer to Figure 2 、 6 In the embodiment of the present application, the square lifting appliance 23 comprises a horizontal hoisting beam 231, a vertical connecting beam 232 and an inclined brace beam 233, wherein:

[0088] The horizontal hoisting beam 231 comprises a first horizontal beam 2311, a second horizontal beam 2312, a third horizontal beam 2313 and a fourth horizontal beam 2314 arranged in parallel with each other, and the lengths of the first horizontal beam 2311, the third horizontal beam 2313 and the fourth horizontal beam 2314 increase in turn, and the length of the second horizontal beam 2312 is less than that of the first horizontal beam 2311.

[0089] The vertical connecting beams 232 include the first vertical beam 2321, the second vertical beam 2322, the third vertical beam 2323, the fourth vertical beam 2324, the fifth vertical beam 2325, the sixth vertical beam 2326, the seventh vertical beam 2327, the eighth vertical beam 2328, the ninth vertical beam 2329 and the tenth vertical beam 2320 arranged in sequence and parallel to each other, the first vertical beam 2321 and the tenth vertical beam 2320 are vertically connected on both sides of the third horizontal beam 2313 and the fourth horizontal beam 2314 respectively, and the length of the second vertical beam 2322 is less than that of the fourth vertical beam 2324.

[0090] The fourth vertical beam 2324, the sixth vertical beam 2326, the seventh vertical beam 2327 and the eighth vertical beam 2328 are evenly distributed and vertically connected between the first horizontal beam 2311 and the fourth horizontal beam 2314, the seventh vertical beam 2327 and the eighth vertical beam 2328 extend outward by a certain length on the side close to the fourth horizontal beam 2314, and the length of the eighth vertical beam 2328 is greater than that of the seventh vertical beam 2327.

[0091] The inclined support beams 233 include the first inclined support beam 2331, the second inclined support beam 2332, the third inclined support beam 2333, the fourth inclined support beam 2334, the fifth inclined support beam 2335 and the sixth inclined support beam 2336, one end of the first inclined support beam 2331 is connected to the left side of the fourth horizontal beam 2314, the other end is connected to the top side of the second vertical beam 2322, and the middle part is cross-connected with the first vertical beam 2321 and the third horizontal beam 2313, the second inclined support beam 2332 is connected to the top of the second vertical beam 2322 and the fourth vertical beam 2324, and the third vertical beam 2323 is vertically connected between the second inclined support beam 2332 and the third horizontal beam 2313; the third inclined support beam 2333 is connected to the left side of the first horizontal beam 2311 and the second horizontal beam 2312, the fourth inclined support beam 2334 is connected between the sixth vertical beam 2326 and the fourth horizontal beam 2314, the fifth inclined support beam 2335 is connected between the tenth vertical beam 2320, the ninth vertical beam 2329 and the fourth horizontal beam 2314, and the sixth inclined support beam 2336 is connected between the fourth horizontal beam 2314, the seventh vertical beam 2327, the eighth vertical beam 2328 and the ninth vertical beam 2329.

[0092] The square lifting device 23 in the embodiment is designed in combination with simulation, based on the lifting balance of the reinforcement mesh support assembly 1, the square lifting device 23 is reasonably set to ensure that the balance of the square lifting device 23 is realized under the condition of meeting the structural strength.

[0093] Specifically, please refer to Figure 2 , 4As shown in the embodiment of the present application, the main sling component 21 comprises a rotating sling 211 connected with the crane double hook head, a first adjuster 212 connected with the lower end of the rotating sling 211, a sling distributor 213 connected below the first adjuster 212, and a sling cluster 214 connected below the sling distributor 213, and the main sling 2121 is wound on the first adjuster 212 and connected to the cable drum of the crane double hook head through the bottom end of the first adjuster 212 to adjust the levelness of the sling distributor 213.

[0094] Specifically, please refer to Figure 7 As shown in the embodiment of the present application, the sling distributor 213 comprises upper sling ear plates 2131, muscle plates 2132, upper cover plates 2133, circular arc plates 2134, lower sling ear long plates 2135, and hinged chain plates 2136.

[0095] The bottom of the two upper sling ear plates 2131 is connected with the upper cover plates 2133 in parallel and vertically, the muscle plates 2132 are evenly distributed and connected with the upper sling ear plates 2131 and the upper cover plates 2133 in vertical symmetry, the circular arc plates 2134 are connected with the center lower surface of the upper cover plates 2133 vertically, the lower sling ear long plates 2135 are evenly distributed and connected with the outer circumferential contour surface of the circular arc plates 2134 vertically, and the top of the lower sling ear long plates 2135 is connected with the lower surface of the upper cover plates 2133, and the hinged chain plates 2136 are hinged on the lower sling ear long plates 2135.

[0096] Specifically, please refer to Figure 5 As shown in the embodiment of the present application, the forked ear type adjustable secondary sling component 22 comprises upper arc-shaped lock catch structures 221 connected with the first sling ear plates 234, pulley structures 222, and lower arc-shaped lock catch structures 223 connected with the second sling ear plates 111, the pulley structures 222 comprise upper pulleys 2221 connected with the upper arc-shaped lock catch structures 221, steel wire rope loops 2222, and lower pulleys 2223 connected with the lower arc-shaped lock catch structures 223, and the steel wire rope loops 2222 are wound between the upper pulleys 2221 and the lower pulleys 2223.

[0097] Specifically, in the embodiment of the present application, the photosensitive displacement signal monitor 51 is a PSD, a CCD, or a fiber panel.

[0098] Specifically, in the embodiment of the present application, the number of the sling clusters 214 is 16 groups.

[0099] Another embodiment of the present application also provides a hoisting method of a nuclear power plant reactor steel bar full module, which adopts the special hoisting system of the nuclear power plant reactor steel bar full module.

[0100] S 100: The top end of the main sling component 21 is connected with the double hook head of the crane 100, the upper end of the sling cluster 214 is connected with the sling distributor 213, and the levelness of the sling distributor 213 is adjusted through the first adjuster 212;

[0101] S 200 : The lower end of the sling cluster 214 is connected with the lifting lug on the square spreader 23, and the levelness of the square spreader 23 is adjusted through the pulley structure 222;

[0102] S 300 : The counterweight is applied on the square spreader 23, and the weight, position and application mode of the counterweight are calculated and analyzed through finite element modeling, so that the position of the center of gravity of the square spreader 23 is adjusted;

[0103] S 400 : The cable force monitoring assembly 3 and the hoisting internal force monitoring assembly 4 are pre-installed on each sling cluster 214 to detect the stress of the sling cluster 214 during hoisting to prevent the stress from exceeding the rated load;

[0104] S 500 : The empty load test simulation is carried out, during the test hoisting, the pulley structure 222 is used to control the autorotation of the steel bar full module 300, and the leveling counterweight assembly 6 is installed on the square spreader 23, and the total station is used to detect the levelness of the lower opening of the steel bar full module 300;

[0105] S 600 : The deformation monitoring assembly 5 is installed on the steel mesh support assembly 1 to monitor the deformation displacement value of the steel mesh support assembly 1 in real time;

[0106] S 700 : During the formal hoisting, the crane 100 slowly hooks, the speed is ≤380mm / min, the steel bar full module 300 is 100mm away from the ground, and is suspended for 6 minutes, and the deformation of the above-mentioned sling assembly 2, lifting lug and the foundation settlement value of the chassis area of the crane 100 are visually inspected;

[0107] S 800 : After the visual inspection is qualified, the hook of the crane 100 is slowly hooked, the speed is ≤380mm / min, the steel bar full module 300 is away from the ground to the target distance, and the hooking is stopped and suspended;

[0108] S 900 : The crane 100 moves forward along the paving direction of the roadbed box, the walking speed is ≤1.8m / min, and the walking is stopped when the crane hoisting station point is reached; the hoisting arm is slightly adjusted and rotated, so that the center of the steel bar full module 300 is centered with the positioning center;

[0109] S 1000 : The crane 100 slowly falls the hook, the speed is ≤380mm / min, and the steel bar full module 300 is positioned.

[0110] Further, in step S 500 In the step S

[0111] According to the structural features of the steel bar full module 300, the reasonable steel mesh support assembly 1, the lifting sling assembly 2, the square lifting appliance 23 and the connection scheme are designed, the lifting sling assembly 2 is connected with the steel mesh support assembly and the lifting lug on the steel bar full module 300 respectively, the balance of the stress on the outer side and the inner side of the steel bar full module 300 is ensured, and the relative deformation of the outer side and the inner side of the steel bar full module 300 during lifting is controlled; when the levelness of the square lifting appliance 23 is adjusted, the counterweight mode of the counterweight block is used, the center of gravity of the square lifting appliance 23 is roughly adjusted by applying the counterweight, the center of gravity of the steel bar full module 300 is accurately adjusted through the pulley structure 222 during trial lifting, the center of gravity of the module is consistent with the center, the levelness of the lower opening of the steel bar full module 300 during lifting is ensured; the structure and shape of the square lifting appliance 23 can be designed according to the structure and shape of the steel bar full module 300, so that the special lifting appliance of the application can be applied to various cranes, the special lifting sling structure is simple, convenient to connect and easy to construct; during lifting, the special lifting sling and the lifting method are adopted, combined with the finite element modeling calculation analysis technology, the strain force measurement technology, the total station detection technology, the regulator and other technologies, the deformation and stress of the steel bar full module 300 can be effectively reduced, the lifting requirements of the steel bar full module 300 are met, and the risk coefficient of lifting is reduced.

[0112] Although the application is disclosed as above, the protection scope of the application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the application.

Claims

1. A dedicated hoisting system for a nuclear power plant reactor steel reinforcement full module, characterized in that, The steel mesh support assembly, the hoisting sling assembly, the cable force monitoring assembly, the hoisting internal force monitoring assembly, the deformation monitoring assembly and the leveling counterweight assembly are characterized in that: The steel mesh support assembly comprises profile steel columns, cross beams, diagonal bracing beams and short beams, the cross beams and the diagonal bracing beams are connected between two adjacent profile steel columns, and the short beams are connected to the profile steel columns to bear the self-weight of the steel mesh; The hoisting sling assembly comprises a main hoisting sling component, a forked adjustable secondary hoisting sling component and a square sling, the bottom of the square sling is uniformly connected with first lifting lug plates, and the top of the profile steel column is welded with second lifting lug plates; The square sling comprises horizontal hoisting beams, vertical connecting beams and diagonal bracing beams, wherein: The horizontal hoisting beams comprise first, second, third and fourth horizontal beams arranged in parallel, the lengths of the first, third and fourth horizontal beams increase in turn, and the length of the second horizontal beam is smaller than that of the first horizontal beam; The vertical connecting beams comprise first, second, third, fourth, fifth, sixth, seventh, eighth, ninth and tenth vertical beams arranged in parallel in turn, the first and tenth vertical beams are vertically connected to the left and right sides of the third and fourth horizontal beams respectively, and the length of the second vertical beam is smaller than that of the fourth vertical beam; The fourth, sixth, seventh and eighth vertical beams are uniformly and vertically connected between the first and fourth horizontal beams, the seventh and eighth vertical beams extend outward by a certain length near the side of the fourth horizontal beam, and the length of the eighth vertical beam is greater than that of the seventh vertical beam; The diagonal bracing beams comprise first, second, third, fourth, fifth and sixth diagonal bracing beams, one end of the first diagonal bracing beam is connected to the left side of the fourth horizontal beam, the other end is connected to the top side of the second vertical beam, and the middle part is connected to the first vertical beam and the third horizontal beam, the second diagonal bracing beam is connected to the top of the second and fourth vertical beams, the third vertical beam is vertically connected between the second diagonal bracing beam and the third horizontal beam, the third diagonal bracing beam is connected to the left sides of the first and second horizontal beams, the fourth diagonal bracing beam is connected between the sixth vertical beam and the fourth horizontal beam, the fifth diagonal bracing beam is connected between the tenth, ninth and fourth horizontal beams, and the sixth diagonal bracing beam is connected between the fourth, seventh, eighth and ninth vertical beams. The main sling component comprises a rotating boom connected with the crane double hook head, a first adjuster connected with the lower end of the rotating boom, a sling distributor connected below the first adjuster, and a sling cluster connected below the sling distributor, the main sling is wound on the first adjuster, and the main sling is connected to the cable drum of the crane double hook head through the bottom end of the first adjuster to adjust the levelness of the sling distributor; The forked adjustable secondary sling component comprises an upper arc-shaped lock structure connected with the first ear plate, a pulley structure, and a lower arc-shaped lock structure connected with the second ear plate, the pulley structure comprises an upper pulley connected with the upper arc-shaped lock structure, a wire rope loop, and a lower pulley connected with the lower arc-shaped lock structure, and the wire rope loop is wound between the upper pulley and the lower pulley; The cable force monitoring assembly comprises a pin shaft type cable force sensor, a signal amplifier, a wireless communication module, and a terminal device, and the terminal device is suitable for realizing real-time monitoring of the lifting cable force in the form of a dynamic diagram. The lifting internal force monitoring assembly comprises a vibrating wire displacement meter and an intelligent signal reading instrument, the vibrating wire displacement meter is connected with the intelligent signal reading instrument through a lead wire, the vibrating wire displacement meter monitors the internal force of the sling assembly in real time during lifting, and transmits the recorded test data to the intelligent signal reading instrument. The deformation monitoring assembly comprises a photosensitive displacement signal monitor, a laser, and a signal processing terminal, the signal output end of the laser is opposite to the signal receiving end of the photosensitive displacement signal monitor, and the signal processing terminal automatically analyzes the collected data; when the deformation displacement value of the reinforcement mesh support assembly reaches or exceeds a dangerous deformation value, the signal processing terminal sends an alarm signal through an alarm system. The leveling counterweight assembly comprises counterweight blocks mounted on the square lifting appliance, and the counterweight blocks are added or removed to adjust the levelness of the square lifting appliance according to the lifting flatness.

2. The dedicated hoisting system for nuclear power plant reactor reinforced full module according to claim 1, characterized in that, The profile steel stand is made of channel steel or I-beam by welding.

3. The dedicated hoisting system for nuclear power plant reactor reinforced full module according to claim 1, characterized in that, The sling distributor comprises upper ear plates, rib plates, an upper cover plate, a circular arc plate, lower ear long plates, and hinged chain plates. The bottoms of the two upper ear plates are connected with the upper cover plate in parallel and vertically, the rib plates are uniformly distributed and connected with the upper ear plates and the upper cover plate in vertical symmetry, the circular arc plate is connected with the center lower surface of the upper cover plate vertically, the lower ear long plates are uniformly distributed and connected with the outer circumferential contour surface of the circular arc plate vertically, the tops of the lower ear long plates are connected with the lower surface of the upper cover plate, and the hinged chain plates are hinged on the lower ear long plates.

4. The dedicated hoisting system for nuclear power plant reactor reinforced full-module according to claim 3, characterized in that, The photosensitive displacement signal monitor is a PSD, a CCD, or a fiber panel.

5. The dedicated hoisting system for nuclear power plant reactor reinforced full-module according to claim 4, characterized in that, The number of the sling clusters is 16 groups.

6. A method for hoisting a nuclear power plant reactor steel reinforcement full module using the special hoisting system for a nuclear power plant reactor steel reinforcement full module according to any one of claims 1-5, characterized in that, The method comprises the following steps: S 100 : The top end of the main sling component is connected with the double hook head of the crane, the upper end of the sling cluster is connected with the sling distributor, and the levelness of the sling distributor is adjusted through the first adjuster; S 200 : connecting the lower end of the cluster of slings with the lifting lug on the square spreader, and adjusting the levelness of the square spreader through the pulley structure; S 300 : Apply counterweight on the square spreader, the weight, position and application method of the counterweight are calculated and analyzed by finite element modeling to adjust the center of gravity of the square spreader; S 400 : Pre-installing the cable force monitoring assembly and the hoisting internal force monitoring assembly on each sling cluster to detect the force of the sling cluster during hoisting to prevent the force from exceeding the rated load; S 500 : The simulation of the empty load test is carried out. During the test, the rotation of the steel bar module is controlled by the pulley structure, and the leveling counterweight assembly is installed on the square lifting tool. The levelness of the lower opening of the steel bar module is detected by the total station. S 600 : installing a deformation monitoring assembly on the reinforcement mesh support assembly for real-time monitoring of the deformation displacement value of the reinforcement mesh support assembly; S 700 : During the formal lifting, the crane slowly hooks up, the speed is less than or equal to 380 mm / min, the steel reinforcement full module is 100 mm away from the ground, and it is suspended and static for 6 minutes. Through visual inspection of the deformation of the above hoisting assembly, lifting lug and the foundation settlement value of the crane chassis area; S 800 : After visual inspection, the lifting hook of the crane is slowly hooked up at a speed of ≤380 mm / min, and the steel reinforcement full module is lifted to the target distance from the ground, and then the hooking is stopped and kept suspended; S 900 : The crane moves forward along the direction of the roadbed box laying, the walking speed is less than or equal to 1.8 m / min, and the walking is stopped when the crane hoisting station point is reached; the boom is finely adjusted to rotate, so that the center of the steel bar full module is centered with the centering center. S 1000 : Crane slowly fall hook, speed ≤ 380 mm / min, so that the steel reinforcement module in place.

7. The method of hoisting a nuclear power plant reactor steel reinforced full module according to claim 6, characterized in that, In step S 500 Each corner point position 1500 mm above the lower edge of the full module of reinforcement is set as an observation point, and the distance between the observation point and the support surface is measured using a steel ruler.

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