Detachable nuclear radiation protection reinforced concrete partition

Abstract

The utility model discloses a detachable nuclear radiation protection reinforced concrete partition, including cuboid reinforced concrete main block (C40 radiation protection concrete pouring of incorporating heavy spar aggregate, built-in HRB400 grade reinforcing steel), its side surface preburied preburied spare of area connection hole is detachably connected through bolt and the metal frame assembly made of Q345 low alloy steel material, the metal frame assembly is constituted the rectangle structure by the transverse beam, the vertical connection of longitudinal beam, is equipped with the diagonal support beam in the inside, the symmetrical installation of bottom two ends contains wear -resisting alloy steel pulley's pulley assembly, and the adaptation is engaged on the parallel I -shaped rail. The device realizes accurate butt joint with the main block through the pulley along the track sliding, and the bolt fixed formation whole protection structure, solves the existing partition dismouting difficult, butt joint inaccuracy, easy to leak, the low reusability etc. problem, has the characteristics such as convenient dismouting, protection reliable, strong adaptability.

Description

Technical Field

[0001] This utility model provides a reinforced concrete partition, and particularly relates to a detachable nuclear radiation protection reinforced concrete partition. Background Technology

[0002] Nuclear radiation protection barriers are functional structures used in environments such as nuclear industrial facilities, radioactive laboratories, and medical radiation sites to limit the spread of radioactive rays. Their core function is to absorb or scatter rays by using high-density, high-atomic-number materials (such as lead, concrete, and steel), thereby ensuring the safe isolation between the operating area and the non-radiation area. They are an important component of the nuclear safety protection system.

[0003] There are two main types of existing nuclear radiation shielding barriers: one is a monolithic cast-in-place reinforced concrete barrier, whose basic structure consists of a pre-tied steel frame, followed by on-site casting of radiation-shielding concrete mixed with aggregates such as barite and borax, forming an integrated barrier that is fixedly connected to the ground and walls. Although this structure has stable shielding performance, it cannot be disassembled, moved, or reassembled according to usage requirements because it is integrally solidified. It requires destructive dismantling during facility renovation and equipment maintenance, and the material reuse rate is extremely low. The other type is a spliced ​​metal shielding barrier, which consists of multiple metal plates welded or bolted together to form a frame, filled with lead plates or radiation-shielding composite materials. Although this structure has a certain degree of disassembly, the metal frame is mostly directly anchored to the foundation, lacking a guiding and positioning structure. Precise manual alignment is required during splicing, resulting in low installation efficiency. Furthermore, the connection gaps between the frame and the concrete wall are prone to radiation leakage due to vibration or deformation. In addition, the rigid connection between the metal plates and the frame requires complete replacement when local damage occurs, resulting in high maintenance costs. Utility Model Content

[0004] In order to solve the above problems, this application provides a detachable nuclear radiation protection reinforced concrete partition, which solves the problems of existing partitions being non-removable or having inefficient disassembly and assembly, inaccurate connections, easy leakage, high maintenance costs, and low reuse rate.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a detachable nuclear radiation protection reinforced concrete partition, comprising a rectangular reinforced concrete main block, wherein a metal frame assembly is detachably connected to one side of the reinforced concrete main block.

[0006] The metal frame assembly consists of multiple transverse beams and longitudinal beams that are perpendicularly connected to each other to form a rectangular frame structure. Pulley assemblies are symmetrically installed at both ends of the bottom of the metal frame assembly, and the pulley assemblies are adapted to engage with two parallel tracks.

[0007] One end of the track extends to the lower side of the reinforced concrete main block, and the metal frame assembly slides along the track via a pulley assembly to achieve detachable docking with the reinforced concrete main block.

[0008] Preferably, the transverse beam and the longitudinal beam are detachably connected by welding or bolts.

[0009] Preferably, each pulley assembly includes two symmetrically arranged pulleys, the grooves of which are fitted into the top edge of the track.

[0010] Preferably, the track has an I-shaped cross-section, and the pulley is embedded in the central groove of the I-shaped track.

[0011] Preferably, the metal frame assembly is further provided with an inclined support beam, the two ends of which are respectively connected to a transverse beam and a longitudinal beam.

[0012] Preferably, the side of the reinforced concrete main block is pre-embedded with an embedded part, the embedded part is provided with a connection hole, and the metal frame assembly is detachably connected to the embedded part by bolts.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0014] This utility model discloses a detachable nuclear radiation protection reinforced concrete partition. A metal frame assembly is engaged with a parallel I-shaped track via symmetrically arranged pulley assemblies at the bottom. The pulleys are embedded in grooves in the middle of the track, and the grooves fit and engage with the top edge of the track, allowing the metal frame assembly to slide smoothly along the track. One end of the track extends to the lower side of a rectangular reinforced concrete main block. During installation, the metal frame assembly is pushed along the track to the side of the main block. Through connecting holes on the side of the main block, bolts are used to detachably connect the metal frame assembly, which consists of horizontal and vertical beams perpendicularly connected and internally has diagonal support beams, to the main block, forming a complete protective partition. During disassembly, the bolts are loosened, and the metal frame assembly slides in the opposite direction to detach from the main block. The sliding cooperation between the pulleys and the track, along with the modular design of the frame, enables rapid assembly and disassembly. Simultaneously, the diagonal support beams enhance the stability of the frame, and the fit between the I-shaped track and the pulleys ensures accurate and smooth sliding.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the installation of a detachable nuclear radiation protection reinforced concrete partition according to the present invention.

[0017] Figure 2 This is a cross-sectional view of a detachable reinforced concrete partition for nuclear radiation protection according to this utility model.

[0018] Figure 3 This is a partially enlarged view of the internal frame of a detachable nuclear radiation protection reinforced concrete partition according to this utility model.

[0019] As shown in the figure:

[0020] 1. Reinforced concrete main block;

[0021] 11. Embedded parts;

[0022] 2. Metal frame components;

[0023] 21. Horizontal beam; 22. Longitudinal beam; 23. Diagonal support beam;

[0024] 3. Pulley assembly; 31. Pulley;

[0025] 4. Track. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] like Figure 1 and Figure 2As shown, a detachable nuclear radiation protection reinforced concrete partition includes a rectangular reinforced concrete main block 1. One side of the reinforced concrete main block 1 has a pre-embedded part 11 with a connection hole. It is detachably connected to a rectangular metal frame assembly 2, which is composed of multiple transverse beams 21 and longitudinal beams 22 connected perpendicularly to each other, by bolts. Pulley assemblies 3 are symmetrically installed at both ends of the bottom of the metal frame assembly 2. The pulley assemblies 3 are adapted to engage with two parallel tracks 4, one end of which extends to the lower side of the reinforced concrete main block 1. The pulley assemblies 3 slide along the tracks 4 to achieve detachable docking with the reinforced concrete main block 1.

[0030] In this implementation scheme, the reinforced concrete main block 1 serves as the core load-bearing and shielding unit for nuclear radiation protection, constructing a basic protective barrier in the form of a cuboid. Embedded parts 11 on its sides integrate connection holes, providing a mechanical interface for detachable connection with the metal frame assembly 2. The metal frame assembly 2 is a rectangular frame formed by perpendicularly welding or bolting transverse beams 21 and longitudinal beams 22, with internally added diagonal support beams 23. A triangular stabilizing structure enhances the frame's resistance to torsion and deformation. Pulley assemblies 3 are symmetrically installed at both ends of the frame's bottom. These symmetrical pulleys 31 have grooves that fit and engage with the top edge of the track 4, and the wheel body is embedded in the central groove of the I-shaped track 4, achieving both sliding guidance and anti-derailment functions. The tracks 4 are arranged in parallel, with one end extending to the lower side of the reinforced concrete main block 1, providing a linear guiding path for the sliding docking of the metal frame assembly 2.

[0031] Based on the above implementation scheme, in this device:

[0032] Detachable connection system (embedded parts + bolts): Breaking the rigid limitations of the traditional "integrated casting" of protective partitions, it realizes modular assembly and disassembly of components, solves the problems of "difficult to modify and low reuse rate", and reduces operation and maintenance costs;

[0033] Sliding docking system (pulleys + I-beam track): Mechanical guidance replaces manual alignment, ensuring smooth frame sliding and constraining sliding deviation with a fitting structure, improving installation efficiency and docking accuracy, and avoiding weakening of nuclear radiation shielding effect due to assembly errors;

[0034] Frame reinforcement design (horizontal and longitudinal beams + diagonal bracing): It forms a "rigid-flexible synergy" protective structure with the reinforced concrete main body - the concrete blocks radiation, the metal frame distributes the load, and the diagonal bracing suppresses the deformation of the frame, which significantly enhances the overall resistance to radiation stress and fatigue damage, and is suitable for long-term service in nuclear environments.

[0035] like Figure 2 and Figure 3As shown, the transverse beam 21 and the longitudinal beam 22 are detachably connected by welding or bolts, and the metal frame assembly 2 is also provided with an inclined support beam 23. The two ends of the inclined support beam 23 are respectively connected to the transverse beam 21 and the longitudinal beam 22. Each pulley assembly 3 includes two symmetrically arranged pulleys 31. The groove of the pulley 31 is adapted to fit into the top edge of the track 4, and the cross section of the track 4 is I-shaped. The wheel body of the pulley 31 is embedded in the middle groove of the I-shaped track 4.

[0036] In this implementation plan, it is necessary to rely on the existing technical system for collaborative operation: the track 4 is fixed by the ground-preset anchor bolts and the base embedded parts, and the main reinforced concrete block 1, which is made of C40 radiation-proof concrete with barite aggregate (with HRB400 grade steel bars) is lifted by crane or forklift and transported, as well as the metal frame component 2 welded from Q345 low alloy steel. The pulley (31) is made of wear-resistant alloy steel to ensure sliding durability. After the metal frame and the main block are connected by bolts, the existing radiation protection sealing technology (such as laying lead plates or injecting radiation shielding sealant at the gaps) is used to seal the gaps on the contact surface to prevent radiation leakage, and the protection effectiveness is verified with the help of radiation dosimeter and other detection equipment. The above-mentioned existing technologies (anchoring, lifting and transportation, sealing and plugging, radiation detection) are deeply integrated with the modular structure of this device. The installation process is simplified by the track sliding and bolt connection mechanism, and the shielding reliability is strengthened by the selection of radiation-proof materials and the sealing details. The technical balance between "convenience of disassembly and assembly" and "radiation protection" is achieved.

[0037] During the implementation of this solution, the following existing technical means must be combined to complete the entire process: Before installation, the laying position of track 4 is marked out using a laser line projector and a steel tape measure to ensure that the parallelism error of the two tracks is controlled within ±2mm. Then, M12 expansion bolts are used to fix the bottom of the track to the concrete base, with the bolt spacing set at 500mm to ensure load-bearing stability. When pouring the reinforced concrete main block 1, a standardized steel formwork is used for support, and HRB400 grade steel mesh is tied inside at 200mm intervals. At the same time, the Q235 steel embedded parts 11 are fixed in the preset position by welding steel bars. During the pouring process, an immersion vibrator (vibration frequency 50Hz) is used to ensure the compactness of C40 radiation-proof concrete (containing 30% barite aggregate). When processing the metal frame component 2, the transverse beam 21 and the longitudinal beam 22 are welded using carbon dioxide gas shielded welding. After welding, the weld slag is removed by grinding with an angle grinder. The diagonal support beam 23 is welded using M16 high-strength steel. Bolts are used to connect the horizontal and vertical beams. When installing bolts, a torque wrench is used to tighten them to a preload of 350 N·m. When assembling pulley assembly 3, pulley 31, which is made of 45# steel and heat-treated, is connected to the bearing seat through a deep groove ball bearing. The bearing seat is fixed to the bottom of the metal frame by welding. After assembly, lithium-based grease (dropping point ≥180℃) is applied to ensure flexible rotation. During the overall installation stage, a forklift (rated lifting capacity 5t) is used to lift the metal frame assembly to the starting end of the track. When the frame is manually pushed to slide along the track, the verticality of the frame is monitored in real time using a level (deviation ≤1°). After the connection is completed, a radiation protection lead shim (thickness 2mm) is placed between the embedded part and the frame connection surface, and then tightened with M20 stainless steel bolts. Finally, a gamma ray detector (range 0-100mSv / h) is used to detect radiation leakage at the connection gap to ensure that the dose rate is ≤0.1mSv / h. The above-mentioned existing technical means are coordinated with the structure of this device to form a complete implementation system from processing, installation to acceptance.

[0038] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A detachable reinforced concrete partition for nuclear radiation protection, characterized in that: It includes a rectangular reinforced concrete main block (1), and a metal frame assembly (2) is detachably connected to one side of the reinforced concrete main block (1); The metal frame assembly (2) is a rectangular frame structure formed by multiple transverse beams (21) and longitudinal beams (22) connected perpendicularly to each other. Pulley assemblies (3) are symmetrically installed at both ends of the bottom of the metal frame assembly (2). The pulley assemblies (3) are adapted to engage with two parallel tracks (4). One end of the track (4) extends to the lower side of the reinforced concrete main block (1), and the metal frame assembly (2) slides along the track (4) via the pulley assembly (3) to achieve detachable docking with the reinforced concrete main block (1).

2. The detachable nuclear radiation protection reinforced concrete partition according to claim 1, characterized in that: The transverse beam (21) and the longitudinal beam (22) are detachably connected by welding or bolts.

3. A detachable reinforced concrete partition for nuclear radiation protection according to claim 1, characterized in that: Each of the pulley assemblies (3) includes two symmetrically arranged pulleys (31), the grooves of which fit into the top edge of the track (4).

4. A detachable reinforced concrete partition for nuclear radiation protection according to claim 1, characterized in that: The track (4) has an I-shaped cross section, and the pulley (31) is embedded in the groove in the middle of the I-shaped track (4).

5. A detachable reinforced concrete partition for nuclear radiation protection according to claim 1, characterized in that: The metal frame assembly (2) is also provided with an inclined support beam (23) inside, and the two ends of the inclined support beam (23) are respectively connected to the transverse beam (21) and the longitudinal beam (22).

6. A detachable reinforced concrete partition for nuclear radiation protection according to claim 1, characterized in that: The side of the reinforced concrete main block (1) is pre-embedded with an embedded part (11), and the embedded part (11) is provided with a connection hole. The metal frame assembly (2) is detachably connected to the embedded part (11) by bolts.

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