High radiation level ducted arc shield

Abstract

The utility model relates to the technical field of ionizing radiation shielding, specifically relates to a high radiation level pipeline arc shielding device, and the device comprises shielding support unit, vertical shielding material and arc shielding material, the top of shielding support unit is arc, shielding support unit is erected above the pipeline, arc shielding material is equipped on the top of shielding support unit, arc shielding material covers the top and one side of shielding support unit, and the other side of shielding support unit is equipped with vertical shielding material. The device is combined through multiple shielding support unit groups, realizes pipeline shielding erection in small range space, effectively reduces the radiation level of workplace after shielding, non-operation personnel do not need to wear lead clothes, improves the maintenance work efficiency, and reduces the exposure dose of maintenance personnel.

Description

Technical Field

[0001] This invention relates to the field of ionizing radiation shielding technology, specifically to a high-radiation horizontal pipeline arc shielding device. Background Technology

[0002] Nuclear power plants have a large number of radioactive pipes at their sites, and the installation locations and sizes of the spaces in which they are located vary considerably. Some primary loop pipes have high radiation levels due to radioactive nuclides carried or deposited by the coolant. The main sources of radiation are the core activation products. Most of these radioactive nuclides have long half-lives and cannot effectively reduce radiation levels through decay in a short period of time, which affects the maintenance of radioactive systems.

[0003] In current technology, high-radiation pipelines primarily use lead sheeting for radiation shielding. However, lead sheeting is heavy and cannot be directly installed on the pipeline. Before shielding, a shielding support structure must be erected, followed by the installation of lead sheeting or other shielding materials. Temporary supports are typically used to secure the lead sheeting and other shielding materials. However, this method involves complex temporary support construction, is difficult to operate due to space constraints, resulting in low shielding efficiency and higher radiation doses for workers. This does not conform to the principle of keeping radiation levels as low as possible, and for pipelines in confined spaces, close to the ground, or against walls, scaffolding or other supports cannot be erected, making shielding measures impossible. Utility Model Content

[0004] This invention proposes a high-radiation horizontal pipeline arc-shaped shielding device to solve the problems of complex pipeline shielding support processes and difficult operation due to space limitations in the prior art.

[0005] The technical solution of this utility model:

[0006] This utility model proposes a high-radiation horizontal pipeline arc shielding device, which includes a shielding support unit, a vertical shielding material and an arc shielding material. The top of the shielding support unit is arc-shaped and is erected above the pipeline. The top of the shielding support unit is provided with arc shielding material, which covers the top and one side of the shielding support unit. The other side of the shielding support unit is provided with vertical shielding material.

[0007] In some embodiments, the shielding bracket unit includes two shielding brackets, which are fixedly connected in parallel by a crossbar.

[0008] In some embodiments, the shielding bracket has an "n" shaped structure. The shielding bracket includes a straight bracket, an arc-shaped bracket, a fixing pin, and a bracket height adjustment inner sleeve. The top end of the arc-shaped bracket is fixedly connected to the straight bracket. The straight bracket and the arc-shaped bracket are hollow structures. The bracket height adjustment inner sleeve is provided at the end of the straight bracket and the arc-shaped bracket. The bracket height adjustment inner sleeve is connected to the straight bracket and the arc-shaped bracket by a fixing pin.

[0009] In some embodiments, the inner sleeve of the bracket height adjustment is provided with a plurality of pin holes in the vertical direction, and the straight bracket and the arc-shaped bracket are provided with pin holes at their ends. The positional relationship between the pin holes of the inner sleeve and the pin holes at the ends of the straight bracket and the arc-shaped bracket is adjusted by adjusting the bracket height, and the height of the shielding bracket is adjusted by fixing the pins.

[0010] In some embodiments, the top of the straight support of the shielding bracket is provided with a detachable hook, which includes two semi-circular buckles. The semi-circular buckles are fixed to the upper part of the shielding bracket by bolt fastening. The semi-circular buckles are provided with a vertical hook for fixing the shielding material.

[0011] In some embodiments, the upper part of the vertical shielding material is provided with a fixing hole A, the upper part of the arc-shaped shielding material is provided with a fixing hole B, and the detachable hook passes through the fixing hole A and the fixing hole B.

[0012] In some embodiments, multiple devices are sequentially spliced ​​along the pipe to be shielded to shield the pipe.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model proposes a high-radiation horizontal pipeline arc shielding device. The device uses an "n"-shaped shielding bracket. Shielding materials can be hung on both sides of the arc-shaped and vertical surfaces to achieve pipeline shielding close to the ground. When placed horizontally, the opening faces the wall and the arc-shaped surface faces upward. Hanging shielding materials on the arc-shaped surface can achieve pipeline shielding close to the wall, meeting the needs of various scenarios. By combining multiple shielding bracket units, pipeline shielding can be erected in a small space. After shielding, the radiation level in the workplace is effectively reduced. Non-working personnel do not need to wear lead aprons, improving maintenance efficiency and reducing the radiation dose to maintenance personnel.

[0015] 2. This utility model proposes a high-radiation horizontal pipeline arc shielding device. The device uses a bracket designed to match the size of the shielding material and detachable hooks on the bracket to quickly fix the shielding material, thereby achieving rapid pipeline shielding and effectively improving the efficiency of shielding construction and reducing the radiation dose to shielding personnel. Furthermore, the detachable hooks allow the shielding material to be pre-attached and then quickly placed at the corresponding position on the pipeline to be shielded, achieving rapid assembly and modular shielding, which greatly improves shielding efficiency.

[0016] 3. This utility model proposes a high-radiation horizontal pipeline arc shielding device. By setting an adjustable inner sleeve at the end of the support unit, the height of the shielding support can be adjusted, which can be applied to the radiation shielding of pipelines of different heights.

[0017] 4. This utility model is in the shape of an "n". When placed vertically, shielding materials can be hung on both sides of the curved surface and the vertical surface to achieve pipe shielding close to the ground. When placed horizontally, the opening faces the wall and the curved surface faces upward. Shielding materials can be hung on the curved surface to achieve pipe shielding close to the wall, meeting the needs of various scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a shielding bracket for a high-radiation horizontal pipeline arc-shaped shielding device according to the present invention;

[0019] Figure 2 This is a schematic diagram of the double-sided shielding of a high-radiation horizontal pipeline arc shielding device according to the present invention;

[0020] Figure 3 This is a schematic diagram of a single-sided shielding of a high-radiation horizontal pipeline arc shielding device according to the present invention;

[0021] Figure 4 This is a schematic diagram of a detachable hook for a high-radiation horizontal pipeline arc shielding device according to the present invention.

[0022] Figure descriptions: 1. Straight bracket; 2. Arc-shaped bracket; 3. Inner sleeve for bracket height adjustment; 4. Fixing pin; 5. Detachable hook; 6. Shielding bracket unit; 7. Vertical shielding material; 8. Fixing hole A; 9. Fixing hole B; 10. Arc-shaped shielding material. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 4 As shown, this utility model proposes a high-radiation horizontal pipeline arc shielding device. The device includes a shielding support unit 6, a vertical shielding material and an arc shielding material 10. The top of the shielding support unit 6 is arc-shaped. The shielding support unit 6 is erected above the pipeline. The top of the shielding support unit 6 is provided with the arc shielding material 10, which covers the top and one side of the shielding support unit 6. The other side of the shielding support unit 6 is provided with vertical shielding material.

[0025] The shielding support unit 6 includes two shielding supports, which are fixedly connected by a crossbar. The shielding support is generally "n"-shaped and includes a straight support 1, an arc-shaped support 2, a fixing pin 4, and a height-adjustable inner sleeve 3. The top of the arc-shaped support 2 is fixedly connected to the straight support 1. Both the straight support 1 and the arc-shaped support 2 are hollow structures. The height-adjustable inner sleeve 3 is located at the ends of the straight support 1 and the arc-shaped support 2, and is connected to the straight support 1 and the arc-shaped support 2 by fixing pins. The height-adjustable inner sleeve 3 has several pin holes in the vertical direction, and the ends of the straight support 1 and the arc-shaped support 2 also have pin holes. By adjusting the positional relationship between the pin holes in the height-adjustable inner sleeve 3 and the pin holes at the ends of the straight support 1 and the arc-shaped support 2, the height of the height-adjustable inner sleeve 3 can be adjusted, enabling shielding of pipelines at different heights from the ground. Two identical "n"-shaped shielding supports are connected in parallel by a crossbar to form a structurally stable shielding support unit 6.

[0026] The top of the straight support 1 of the shielding bracket is equipped with a detachable hook 4, which is fixed to the upper part of the shielding bracket by two semi-circular snap-fit ​​bolts. One side of the semi-circular snap-fit ​​of the detachable hook 4 has a vertical hook for quickly fixing the shielding material; two semi-circular snap-fit ​​bolts with hooks can be combined to form a double-sided hook for fixing the shielding material on both sides of the bracket. The upper part of the vertical shielding material has a fixing hole A8, and the upper part of the arc-shaped shielding material 10 has a fixing hole B9. The detachable hook 4 passes through fixing holes A8 and B9.

[0027] This utility model proposes a high-radiation horizontal pipeline arc-shaped shielding device, the specific implementation of which is as follows: Figure 2 As shown, the double-sided shielding method of this device specifically includes: adjusting the height of the shielding bracket unit 6 according to the height of the pipe to be shielded from the ground, placing the shielding bracket unit 6 vertically, and installing a detachable hook 4 on the top of the straight bracket 1 of the shielding bracket unit 6. The detachable hook 4 is connected to the fixing hole A8 on the vertical shielding material 8 and the fixing hole B9 on the arc-shaped shielding material 10 respectively, so that the shielding material can be quickly hung on the arc-shaped surface and the vertical surface of the bracket unit to form a shielding module. The assembled shielding module is placed directly above the pipe to be shielded, so that the radiation on both sides of the pipe can be quickly shielded.

[0028] like Figure 3As shown, the single-sided shielding method of this device specifically includes: adjusting the size of the shielding bracket unit 6 according to the distance between the pipe to be shielded and the wall, placing the shielding bracket unit 6 horizontally, and installing a detachable hook 4 on the top of the arc-shaped bracket 2 of the shielding bracket unit 6. The detachable hook 4 is connected to the fixing hole B9 on the arc-shaped shielding material 10, so that the shielding material can be quickly hung on the arc-shaped surface of the bracket unit to form a shielding module. The assembled shielding module is placed horizontally above the pipe that is close to the ground and has one side against the wall, with the opening facing the wall, so that the radiation on the outside of the pipe can be quickly shielded.

[0029] Multiple shielding bracket units 6 can be spliced ​​together along the pipe to be shielded to form an adjustable large shielding bracket, enabling the erection of shielding brackets for long and curved pipes in complex environments; by pre-installing hooks and shielding materials on the shielding bracket units 6 to form a shielding module, and by placing the shielding modules tightly along the pipe to be shielded, a complete large shielding body can be formed to achieve rapid shielding for high radiation level control.

[0030] The embodiments of this utility model have been described in detail above. This utility model is not limited to the above examples. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model.

Claims

1. A high-radiation horizontal pipeline arc-shaped shielding device, characterized in that, The device includes a shielding support unit (6), a vertical shielding material, and an arc-shaped shielding material (10). The top of the shielding support unit (6) is arc-shaped. The shielding support unit (6) is erected above the pipe. The top of the shielding support unit (6) is provided with the arc-shaped shielding material (10). The arc-shaped shielding material (10) covers the top and one side of the shielding support unit (6). The other side of the shielding support unit (6) is provided with vertical shielding material.

2. The high-radiation horizontal pipeline arc shielding device according to claim 1, characterized in that, The shielding bracket unit (6) includes two shielding brackets, which are fixedly connected by a crossbar.

3. The high-radiation horizontal pipeline arc shielding device according to claim 2, characterized in that, The shielding bracket has an "n" shaped structure. The shielding bracket includes a straight bracket (1), an arc-shaped bracket (2), a fixing pin, and a bracket height adjustment inner sleeve (3). The top end of the arc-shaped bracket (2) is fixedly connected to the straight bracket (1). The straight bracket (1) and the arc-shaped bracket (2) are hollow structures. The bracket height adjustment inner sleeve (3) is provided at the end of the straight bracket (1) and the arc-shaped bracket (2). The bracket height adjustment inner sleeve (3) is connected to the straight bracket (1) and the arc-shaped bracket (2) by a fixing pin.

4. The high-radiation horizontal pipeline arc shielding device according to claim 3, characterized in that, The height adjustment inner sleeve (3) of the bracket is provided with several pin holes in the vertical direction. The straight bracket (1) and the arc bracket (2) are provided with pin holes at their ends. By adjusting the positional relationship between the pin holes of the height adjustment inner sleeve (3) and the pin holes at the ends of the straight bracket (1) and the arc bracket (2), the fixed pin realizes the height adjustment of the shielding bracket.

5. A high-radiation horizontal pipeline arc shielding device according to claim 4, characterized in that, The top of the straight bracket (1) of the shielding bracket is provided with a detachable hook (4). The detachable hook (4) includes two semi-circular buckles. The semi-circular buckles are fixed to the upper part of the shielding bracket by bolt fastening. The semi-circular buckles are provided with vertical hooks, which are used to fix the shielding material.

6. The high-radiation horizontal pipeline arc shielding device according to claim 5, characterized in that, The vertical shielding material has a fixing hole A (8) on its upper part, and the arc-shaped shielding material (10) has a fixing hole B (9) on its upper part. The detachable hook (4) passes through the fixing hole A (8) and the fixing hole B (9).

7. A high-radiation horizontal pipeline arc shielding device according to claim 6, characterized in that, Multiple of the aforementioned devices are sequentially spliced ​​along the pipe to be shielded to shield the pipe.

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