Flexible and installable portable shielding space / passage for preventing radiation exposure.

Abstract

To provide a flexible and installable portable shielding space / passage for preventing radiation exposure. [Solution] An evacuation space or passage for preventing exposure to radiation, comprising a tube that expands with a compressed fluid and has a hollow section in the center. The tube has a diameter smaller than the predetermined large diameter circle on its circumference. Furthermore, a long, multiple annular small-diameter hoses that expand upon the introduction of fluid into them are arranged adjacent to each other so that their hollow sections coincide in the longitudinal direction, and the sides of these adjacent annular small-diameter hoses are tightly packed together with a predetermined width between them, and when compressed fluid is introduced into these annular small-diameter hoses, large-diameter openings and large-diameter hollow holes communicating therewith are formed at both ends. The tube has an inlet and outlet at at least one of the large-diameter openings at both ends, and the fluid injected into the annular small-diameter hose is stably held in either a foamed and hardened state or a liquid state, thereby forming a hollow section. .

Description

Technical Field

[0001] The present invention relates to a shielding structure for preventing exposure to radiation, and particularly to a portable radiation shielding space used as an evacuation space or passage and composed of a hollow structure having flexibility and portability.

Background Art

[0002] When a radiation disaster occurs, structures that can be quickly deployed and have shielding performance against radiation are required for emergency evacuation spaces and mobile passages. In particular, for radiation with high penetration power such as γ-rays, it is necessary to ensure a sufficient shielding thickness using lead, concrete, water, etc.

[0003] However, conventional shielding structures are heavy and difficult to install, and are unsuitable as mobile installation type exposure prevention structures. In contrast, there is a need for a structure that is flexible and extensible and can easily exhibit a shielding effect by injecting a fluid. ​​​​​​​​​​​​​​​​​​​​​

[0007] Furthermore, claim 2 is characterized by a structure in which, instead of a straight small-diameter hose, multiple annular small-diameter hoses are provided in close contact in the longitudinal direction, and a hollow section is similarly formed by fluid introduction.

[0008] Claim 3 adopts a configuration in which small-diameter hoses are connected by a flexible sheet, thereby improving ease of assembly and stability.

[0009] Claim 4 uses a sealed woven fabric or rubber as the inner material of the small-diameter hose to ensure durability and flexibility.

[0010] Claim 5 achieves a high-density shielding structure by making the contact width (the width of contact between one side) of adjacent small-diameter hoses 1 / 3 to 1 / 8 of the circumference. <Reference> In a water wall of about 10 cm, (1) Alpha rays and beta rays → Can be completely blocked. (2) Neutron radiation → Can be blocked to some extent, but not completely. (3) Gamma rays (medical use, nuclear power plant origin, etc.) → They are greatly weakened, but there is still a possibility that they will penetrate. (In water, about 10 cm corresponds to one halving, and 30 cm corresponds to 1 / 8 of the original strength.)

[0011] Claim 6 improves controllability and manageability by providing a fluid injection device, a flow meter, etc.

[0012] Claim 7 improves shape retention performance by using a fluid that foams and hardens inside a small-diameter hose.

[0013] Claim 8 achieves practical shielding performance against gamma rays and the like by using a high-shielding fluid such as water, water with iron powder, or water mixed with concrete. [Effects of the Invention]

[0014] According to the present invention, a lightweight and portable shielding structure can be quickly deployed and installed when needed, making it possible to easily construct an evacuation space or passage that prevents exposure to radiation.

[0015] Moreover, by injecting fluid into the hollow tube, a shielding effect is exerted. After use, the fluid can be drained, and it can be easily stored and reused, enabling a prompt response in case of disasters or emergencies.

Brief Description of the Drawings

[0016] [Figure 1] Schematic perspective view of an evacuation passage and a shielding space using the hollow tube according to Embodiment 1 of the present invention. [Figure 2] Schematic perspective view of a linear small-diameter hose type in an extended state according to Embodiment 1 of the present invention, and a cross-sectional view taken along line A1 - A2. [Figure 3] Cross-sectional view taken along line X1 - X2 of FIG. 2. [Figure 4] Cross-sectional view of the hollow tube according to Embodiment 1 having a multi-layer structure. [Figure 5] Cross-sectional view of a multi-layer structure provided with a large-diameter circular sheet on the outer periphery of the hollow tube. [Figure 6] Schematic perspective view of a shielding space using an annular hose according to Embodiment 2. [Figure 7] Schematic perspective view of an annular hose type evacuation space in an extended state according to Embodiment 2, and a cross-sectional view taken along line B1 - B2. [Figure 8] Cross-sectional view taken along line Y1 - Y2 of Embodiment 2. [Figure 9] Cross-sectional view of a multi-layer structure according to Embodiment 2.

Modes for Carrying Out the Invention

[0017] Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 9 with reference to the drawings. However, the embodiments shown below are examples of evacuation spaces and passages for embodying the technical idea of the present invention, and are not intended to specify the present invention thereto. The present invention can be equally applied to other embodiments included in the claims.

[0018] Figure 1 is a schematic perspective view of an evacuation space and passage according to Embodiment 1 of the present invention, showing a shielding space and passage main body (1) constituted by a hollow tube (2). The hollow tube (2) expands by compressed fluid injected therein to form a large-diameter hollow (5).

[0019] Figure 2 is a perspective view showing the overall structure when the hollow tube is extended and in a use state. Entrance / exit openings (12) are provided at both ends and can be sealed by a closing sheet (11) as required.

[0020] Figure 3 corresponds to the X1-X2 cross-section of Figure 2, where a plurality of linear small-diameter hoses (3) are closely wound in a spiral shape with a predetermined width, and a hollow space with a circular cross-section is formed by injecting compressed fluid.

[0021] Figure 4 is a cross-sectional view of the hollow tube with a multi-layer structure. By stacking a plurality of layers of small-diameter hoses (3) in the outer peripheral direction, the radiation shielding performance is enhanced.

[0022] Figure 5 shows an example in which a sheet body (8) is added on the outer circumference, indicating a configuration in which a further shielding layer can be formed by injecting fluid between the sheet and the tube.

[0023] Figure 6 is a configuration example according to Embodiment 2. A tube is formed by stacking a plurality of annular small-diameter hoses (4) to constitute a shielding space and passage (1).

[0024] Figure 7 is a perspective view of the annular hose structure in an extended state. The arrangement of the hoses is continuous in the vertical direction, and a large-diameter hollow (5) is formed inside the space.

[0025] Figure 8 is a cross-sectional view corresponding to Figure 7, showing a state in which a communicating hollow space is formed inside a structure formed by a collection of annular small-diameter hoses (4).

[0026] Figure 9 further multi-layers the structure of Figure 8 and is useful as an example for further enhancing the radiation shielding performance.

[0027] A fluid introduction device (15) and a suction device (16) are connected to the hollow tube (2), which are controlled via a switching valve (17) and a pipe fitting (18). Safe and stable operation can be ensured by installing flow meters and pressure gauges near the opening of the small-diameter hose as needed.

[0028] In addition to water, other highly shielding fluids such as water containing iron powder or concrete-mixed water can be used as the fluid introduced. Furthermore, by using foam-curing materials, it is possible to improve the shape retention performance after deployment. [Explanation of Symbols]

[0029] 1. Main body of shielded space / passage 2 Hollow tubes 3. Straight, small-diameter hose 4. Annular small diameter hose 5 Large diameter hollow 6. Large diameter opening 7. The sides of adjacent hoses are in close contact with each other. 8 sheets 10 fixing bands 11. Closure sheet 12 Entrance / exit 13 Fluid 15 Compressed fluid introduction device 16 Compressed fluid extraction device 17 Switching valve 18 Pipe fittings 19 Connecting pipe 20 Compressed fluid introduction pipe

Claims

1. An evacuation space or passageway for preventing exposure to radiation, The evacuation space or passage is composed of a tube that expands with compressed fluid and has a hollow section in the center. The tube consists of multiple elongated annular small-diameter hoses, each having a diameter smaller than the predetermined large-diameter circle, arranged adjacent to each other on the circumference of the circle, with their hollow sections aligned in the longitudinal direction, and the sides of these adjacent annular small-diameter hoses closely together with a predetermined width between them. When compressed fluid is introduced into these annular small-diameter hoses, large-diameter openings and large-diameter hollow holes communicating with them are formed at both ends. The tube is provided with an inlet and outlet at at least one of the large-diameter openings at both ends, A portable shielding space or passage for preventing radiation exposure, characterized in that the fluid injected under pressure into the annular small-diameter hose is stably held in either a foamed and hardened state or a liquid state, thereby maintaining the circumferential shape of the tube.

2. The portable shielding space or passage for preventing radiation exposure according to claim 1, characterized in that the annular small-diameter hoses are arranged to be in close contact with adjacent annular small-diameter hoses over a width of 1 / 3 to 1 / 8 of the circumference of each annular small-diameter hose, thereby maintaining a minimum thickness of the layer of fluid being injected.

3. The portable shielding space or passage for preventing radiation exposure according to claim 1 or 2, characterized in that the fluid injected under pressure into the annular small-diameter hose is a highly shielding fluid, and the highly shielding fluid is water, water containing iron powder, or concrete mixed water.

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