Tungsten-nickel-based shielding body component of radioactive pipeline

Abstract

The utility model relates to a tungsten-nickel-based shielding body component of a radioactive pipeline, which comprises a tungsten-nickel-based shielding body and a flexible rubber layer, the tungsten-nickel-based shielding body and the flexible rubber layer are cylindrical and are formed after cuboids are jointed, and the flexible rubber layer is arranged on the inner wall of the cylindrical tungsten-nickel-based shielding body; and the radioactive pipeline is coated and mounted in the flexible rubber layer on the inner wall of the tungsten-nickel-based shielding body. The utility model has the beneficial effects that the cylindrical tungsten-nickel-based shielding body is compact and has few pores, and the flexible rubber layer is arranged in the cylindrical tungsten-nickel-based shielding body, so that contact damage can be avoided, and the service life of the tungsten-nickel-based shielding body component of the radioactive pipeline is prolonged; step-shaped side plates are fixedly connected to two sides of a horizontal plate and two sides of a vertical plate of the right-angle-shaped bracket, and the step-shaped side plates are used for being vertically connected with the horizontal plate and the vertical plate of the right-angle-shaped bracket, so that a reinforcing effect is achieved; the tungsten-nickel-based shielding body component has better mechanical property; the nickel-based shielding body component has excellent gamma shielding performance and certain neutron shielding performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of nuclear-powered ships and nuclear power, and in particular relates to a tungsten-nickel-based shielding component for a radioactive pipeline. Background Art

[0002] Nuclear-powered vessels and nuclear power plants are plagued by numerous radioactive pipelines, severely impacting the health of operators and maintenance personnel. Currently, lead is the primary shielding material for these pipes. However, this shielding requires a large amount of lead and is also bulky, occupying considerable space and carrying capacity within nuclear-powered vessels and nuclear power plants.

[0003] In addition, lead has poor mechanical properties and corrosion resistance, making it unsuitable for places such as nuclear-powered ships that need to withstand high sea conditions; lead also has considerable biological toxicity and is in the process of being gradually eliminated.

[0004] Tungsten, a high-atomic-number, high-density metallic element, offers excellent shielding against gamma rays, making it a promising new shielding material. Existing processes for processing tungsten include sintering and silicone flexible bonding. However, sintering tungsten-based powders can easily create voids, impacting shielding performance. The amount of tungsten-based powder added to flexible materials is limited, and the adhesive is susceptible to aging, resulting in a short lifespan. Furthermore, existing technologies lack the use of tungsten shielding materials in pipelines; shielding is primarily achieved by forming a single tungsten material. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a tungsten-nickel based shielding component for a radioactive pipeline.

[0006] A tungsten-nickel-based shielding component for a radioactive pipeline comprises: a tungsten-nickel-based shielding body and a flexible rubber layer, wherein both the tungsten-nickel-based shielding body and the flexible rubber layer are cylindrically formed by joining rectangular parallelepipeds, and a flexible rubber layer is provided on the inner wall of the cylindrical tungsten-nickel-based shielding body;

[0007] The wall thickness of the tungsten-nickel based shield is 15mm to 25mm, and the wall thickness of the flexible rubber layer is 1mm to 2mm;

[0008] The radioactive pipe is covered and installed in a flexible rubber layer on the inner wall of the tungsten-nickel based shielding body.

[0009] Preferably, the device further comprises a stepped side plate, a right-angle bracket and screws; the rectangular tungsten-nickel-based shield and the flexible rubber layer are respectively spliced ​​into a cylindrical shape by screws, and then the cylindrical flexible rubber layer is fixed to the inside of the cylindrical tungsten-nickel-based shield by screws;

[0010] The right-angle bracket includes a horizontal plate and a vertical plate with vertically fixed ends. The horizontal plate has a circular hole slightly larger than the cylindrical tungsten-nickel-based shield. The cylindrical tungsten-nickel-based shield with a flexible rubber layer is nested in the circular hole of the horizontal plate. The vertical plate of the right-angle bracket has multiple screw holes, through which screws are passed to fix the right-angle bracket to the wall.

[0011] The horizontal and vertical plates of the right-angle bracket are fixedly connected with stepped side plates on both sides. The stepped side plates on both sides are perpendicular to the horizontal and vertical plates. The stepped side plates are used to be vertically connected to the horizontal and vertical plates of the right-angle bracket to play a reinforcing role.

[0012] As a preference: the density of the tungsten-nickel based shielding member is 17.5 g / cm 3 , hardness is 340HV, and it has good mechanical properties.

[0013] As a preference, the neutron shielding coefficient of the tungsten-nickel based shielding component is 0.91, and the γ shielding coefficient is 0.26, indicating that the tungsten-nickel based shielding component has excellent γ shielding performance and certain neutron shielding performance.

[0014] Preferably, the outer diameter of the tungsten-nickel based shielding member is 340 mm, the inner diameter is 320 mm, the wall thickness is 20 mm, and the height is 145 mm; the inner diameter of the circular hole provided on the horizontal plate of the right-angle bracket is 335 mm.

[0015] The beneficial effects of the utility model are as follows: the cylindrical tungsten-nickel-based shield is dense and has few pores; a flexible rubber layer is provided inside the cylindrical tungsten-nickel-based shield, which can avoid contact damage and improve the service life of the tungsten-nickel-based shield component of the radioactive pipeline; both sides of the horizontal plate and the vertical plate of the right-angle bracket are fixedly connected with stepped side plates, and the stepped side plates are used to be vertically connected to the horizontal plate and the vertical plate of the right-angle bracket to play a reinforcing role; the tungsten-nickel-based shield component has good mechanical properties; the nickel-based shield component has excellent γ shielding performance and certain neutron shielding performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the tungsten-nickel based shielding component of the radioactive pipeline.

[0017] Description of the accompanying drawings: stepped side plate 1, right-angle bracket 2, tungsten-nickel based shielding body 3, flexible rubber layer 4, screw 5. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the following embodiments. The following embodiments are provided solely to facilitate understanding of the present invention. It should be noted that, within the scope of the present invention, modifications may be made by a person skilled in the art without departing from the principles of the present invention. Such improvements and modifications are also within the scope of the claims of the present invention.

[0019] As an example, Figure 1 As shown, a tungsten-nickel-based shielding component for a radioactive pipeline includes: a tungsten-nickel-based shielding body 3, a flexible rubber layer 4, a stepped side plate 1, a right-angle bracket 2 and a screw 5. The tungsten-nickel-based shielding body 3 and the flexible rubber layer 4 are both cylindrically formed by joining rectangular parallelepipeds, and a flexible rubber layer 4 is provided on the inner wall of the cylindrical tungsten-nickel-based shielding body 3; the rectangular tungsten-nickel-based shielding body 3 and the flexible rubber layer 4 are each spliced ​​into a cylindrical shape by screws 5, and then the cylindrical flexible rubber layer 4 is fixed to the inside of the cylindrical tungsten-nickel-based shielding body 3 by screws 5; the right-angle bracket 2 includes a horizontal plate and a vertical plate with vertically fixed ends. The horizontal plate is provided with a circular hole with an inner diameter of 335 mm, which is slightly larger than the size of the cylindrical tungsten-nickel-based shielding body 3. The cylindrical tungsten-nickel-based shielding body 3 with the flexible rubber layer 4 is nested in the circular hole on the horizontal plate; the vertical plate of the right-angle bracket 2 is provided with a plurality of screw holes, and the screws 5 pass through the screw holes to fix the right-angle bracket 2 to the wall;

[0020] The horizontal and vertical plates of the right-angle bracket 2 are fixedly connected with stepped side plates 1 on both sides. The stepped side plates 1 on both sides are perpendicular to the horizontal and vertical plates. The stepped side plates are used to be vertically connected to the horizontal and vertical plates of the right-angle bracket to play a reinforcing role.

[0021] The outer diameter of the tungsten-nickel based shielding member is 340 mm, the inner diameter is 320 mm, and the height is 145 mm. The wall thickness of the tungsten-nickel based shielding member 3 is 20 mm, and the wall thickness of the flexible rubber layer 4 is 2 mm.

[0022] The radioactive pipe is covered and installed in the flexible rubber layer 4 on the inner wall of the tungsten-nickel based shielding body 3 .

[0023] The density of the tungsten-nickel based shielding member of this embodiment is 17.5 g / cm 3 , hardness is 340HV, and it has good mechanical properties; the neutron shielding coefficient of the tungsten-nickel based shielding component is 0.91, and the γ shielding coefficient is 0.26, indicating that the tungsten-nickel based shielding component has excellent γ shielding performance and certain neutron shielding performance.

Claims

1. A tungsten-nickel based shielding component for a radioactive pipeline, characterized in that: include: The tungsten-nickel-based shielding body (3) and the flexible rubber layer (4) are both cylindrical in shape formed by joining rectangular parallelepipeds, and a flexible rubber layer (4) is provided on the inner wall of the cylindrical tungsten-nickel-based shielding body (3); The wall thickness of the tungsten-nickel based shield (3) is 15 mm to 25 mm, and the wall thickness of the flexible rubber layer (4) is 1 mm to 2 mm; The radioactive pipe is covered and installed in a flexible rubber layer (4) on the inner wall of a tungsten-nickel-based shielding body (3).

2. The tungsten-nickel based shielding component for a radioactive pipeline according to claim 1, characterized in that: It also includes a stepped side plate (1), a right-angle bracket (2) and a screw (5); the rectangular tungsten-nickel-based shield (3) and the flexible rubber layer (4) are each spliced ​​into a cylindrical shape by the screw (5), and then the cylindrical flexible rubber layer (4) is fixed to the inside of the cylindrical tungsten-nickel-based shield (3) by the screw (5); The right-angle bracket (2) comprises a horizontal plate and a vertical plate with ends fixed vertically. The horizontal plate is provided with a circular hole, the size of which is larger than the size of the cylindrical tungsten-nickel-based shield (3). The cylindrical tungsten-nickel-based shield (3) with a flexible rubber layer (4) is nested in the circular hole on the horizontal plate. The vertical plate of the right-angle bracket (2) is provided with a plurality of screw holes, and screws (5) are passed through the screw holes to fix the right-angle bracket (2) to the wall. Stepped side plates (1) are fixedly connected to both sides of the horizontal plate and the vertical plate of the right-angle bracket (2), and the stepped side plates (1) on both sides are perpendicular to the horizontal plate and the vertical plate.

3. The tungsten-nickel based shielding member for a radioactive pipeline according to claim 1 or 2, characterized in that: The density of the tungsten-nickel based shielding component is 17.5 g / cm 3 , hardness is 340HV.

4. The tungsten-nickel based shielding member for a radioactive pipeline according to claim 1 or 2, characterized in that: The neutron shielding coefficient of the tungsten-nickel based shielding component is 0.91, and the gamma shielding coefficient is 0.

26.

5. The tungsten-nickel based shielding component for a radioactive pipeline according to claim 1, characterized in that: The outer diameter of the tungsten-nickel based shielding component is 340 mm, the inner diameter is 320 mm, the wall thickness is 20 mm, and the height is 145 mm; the inner diameter of the circular hole opened on the horizontal plate of the right-angle bracket (2) is 335 mm.

Images