Easily-installed radiation shielding device for pipeline three-way joint

Abstract

The utility model discloses an easy-to-install radiation shielding device for a pipeline tee joint, which is provided with a hollow cavity matched with the pipeline tee joint, is provided with three pipe orifices corresponding to the pipeline tee joint in position, and comprises a first shielding piece and a second shielding piece which are oppositely arranged, the first shielding piece and the second shielding piece are hinged and can be opened through relative rotation or locked after being butted; the first shielding piece and the second shielding piece are both of a layered structure and comprise a protective layer, a reinforcing layer and a shielding layer which are sequentially arranged from outside to inside. According to the radiation shielding device for the pipeline three-way joint, the shielding device is more attached to the three-way pipe fitting, the sealing performance of the interface is better, mounting and dismounting are more convenient, and the risk of radiation leakage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of radiation shielding and protection technology, and more specifically to an easy-to-install three-way universal radiation shield for pipelines. Background Technology

[0002] The environmental radiation in the secondary loop and auxiliary systems of nuclear power plants is mainly gamma rays. Due to the presence of activated corrosion products in the pipelines, radioactive particles are deposited, leading to higher environmental radiation levels in many maintenance work areas within the controlled zone. This increases the external radiation dose for workers. Protective devices with nuclear radiation shielding capabilities are generally used. Lead is widely used in the field of nuclear radiation shielding because of its excellent radiation shielding effect and low cost.

[0003] Currently, nuclear power plants mainly use two types of radiation shielding products. One type uses ordinary industrial lead, formed by rolling or casting into gapless metal blocks such as lead plates or sheets for radiation shielding. The second type uses gapless metal blocks or sheets as the core, with inner and outer layers coated with resin or rubber to create radiation shielding materials. However, existing radiation shielding products have the following drawbacks:

[0004] First, poor conformability. Although lead plates and lead sheets have good radiation protection, they are used in large quantities when building shielding systems, generating a lot of waste. In addition, shielding special-shaped pipe components such as tees is difficult to process and has insufficient wrapping properties.

[0005] Second, there is a risk of radiation leakage. Although composite materials made of lead blocks, lead sheets and resin and rubber can fit the pipe, they are designed as a single piece and cannot be installed on large-diameter pipes. Furthermore, due to the high quality of the lead blocks and sheets, the rubber is prone to sagging and deformation at the bottom under the influence of gravity over time, which can cause gaps to appear between the bottom and the pipe, thus increasing the risk of leakage.

[0006] Third, the installation and disassembly are inconvenient. Existing products are usually fixed with clamps during installation, which requires two or more people to work together. This makes installation inconvenient and increases the time that people are exposed to radiation.

[0007] Therefore, how to provide a radiation shield that is widely applicable, safe, and easy to disassemble is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] In view of this, the present invention provides a radiation shielding device suitable for pipe T-fitting, which makes the shielding device fit the T-fitting fitting better, the interface sealing is better, the installation and disassembly are more convenient, and the risk of radiation leakage is reduced.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] An easy-to-install universal radiation shield for pipe tees has a hollow cavity that matches the pipe tee. The shield has three ports corresponding to the positions of the pipe tee. It includes a first shield and a second shield that are arranged opposite to each other. The first shield and the second shield are hinged together and can be rotated to open or locked together after docking.

[0011] Both the first shielding component and the second shielding component are layered structures, comprising a protective layer, a reinforcing layer, and a shielding layer arranged sequentially from the outside to the inside.

[0012] Preferably, the first shielding member and the second shielding member are hinged together by a hinge, and the two ends of the hinge are respectively fixed to the first shielding member and the second shielding member by a bolt, and the bolt is embedded in the reinforcing layer.

[0013] Preferably, the first shielding component and the second shielding component are opened or locked by a latch lock, and the two ends of the latch lock are respectively fixed to the first shielding component and the second shielding component by bolts, wherein the bolts are embedded in the reinforcing layer.

[0014] Preferably, the first shielding component includes an integrally formed first inner layer and a first outer layer disposed outside the first inner layer. The first inner layer and the first outer layer have a height difference between their two ends. The end away from the pipe opening forms a first coupling docking interface, and the other end forms a second coupling docking interface and a third coupling docking interface on both sides of the pipe opening, respectively. The first inner layer and the first outer layer form a first coupling seat, a second coupling seat, and a third coupling seat at the three pipe openings.

[0015] The second shielding component includes an integrally formed second inner layer and a second outer layer disposed outside the second inner layer. The second inner layer and the second outer layer have a height difference between their two ends. The end away from the pipe opening forms a fourth coupling docking interface, and the other end forms a fifth coupling docking interface and a sixth coupling docking interface on both sides of the pipe opening, respectively. The second inner layer and the second outer layer form a fourth coupling connector, a fifth coupling connector, and a sixth coupling connector at the three pipe openings.

[0016] The first coupling interface and the fourth coupling interface have complementary structures;

[0017] The second coupling interface and the fifth coupling interface have complementary structures;

[0018] The third coupling docking interface is structurally complementary to the sixth coupling docking interface.

[0019] The first coupling connector, the second coupling connector, and the third coupling connector are respectively spliced ​​with the fourth coupling connector, the fifth coupling connector, and the sixth coupling connector.

[0020] Preferably, the protective layer is a silicone rubber layer, which can shape and fix the shield and prevent mechanical damage and flame retardancy.

[0021] Preferably, the reinforcing layer is a metal fiber mesh layer, which can improve the mechanical properties of the shield and make the hinges and other connecting parts more secure.

[0022] Preferably, the shielding layer is a mixture of lead powder and silicone rubber, which effectively shields radiation.

[0023] As can be seen from the above technical solution, compared with the prior art, this utility model discloses an easy-to-install three-way universal radiation shield for pipelines, which has the following beneficial effects:

[0024] This invention improves the mechanical properties of the material itself by setting a layered structure, adding a reinforcing fiber layer, and fixing the hinge and locking parts to the fiber layer for a firm connection; most of the self-weight load of the shield is supported by the fiber structure, reducing the stress on the silicone rubber part and avoiding the sagging deformation of the rubber layer under gravity.

[0025] The shielding device uses hinges and latches for easy assembly and can be installed by a single person, reducing the operator's time and thus the radiation dose.

[0026] The interface coupling settings can effectively reduce radiation leakage and prevent rays from passing through gaps. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is an overall structural diagram of the present invention;

[0029] Figure 2 This is a partial cross-sectional view of the layered structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the docking structure of this utility model;

[0031] Figure 4 This is a schematic diagram illustrating the installation and use of this utility model;

[0032] In the figure, 1-first shielding component, 11-first coupling interface, 12-second coupling interface, 13-third coupling interface, 14-first coupling connector, 15-second coupling connector, 16-third coupling connector, 17-first inner layer, 18-first outer layer;

[0033] 111-Protective layer, 112-Reinforcing layer, 113-Shielding layer;

[0034] 2-Second shielding component, 21-Fourth coupling interface, 22-Fifth coupling interface, 23-Sixth coupling interface, 24-Fourth coupling connector, 25-Fifth coupling connector, 26-Sixth coupling connector, 27-Second inner layer, 28-Second outer layer;

[0035] 3-Hinge, 31-Bolt 1;

[0036] 4- Hook and latch lock. Detailed Implementation

[0037] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] As attached Figure 1-4 As shown, the easy-to-install pipe tee universal radiation shield has a hollow cavity that matches the pipe tee. The shield has three pipe ports corresponding to the position of the pipe tee, including: a first shield 1 and a second shield 2 arranged opposite to each other. The first shield 1 and the second shield 2 are hinged together, and the two can be rotated to open relative to each other or locked together after docking.

[0039] Both the first shielding component 1 and the second shielding component 2 are layered structures, including a protective layer 111, a reinforcing layer 112, and a shielding layer 113 arranged sequentially from the outside to the inside.

[0040] In some specific structures, the first shielding component 1 and the second shielding component 2 are hinged by a hinge 3. The two ends of the hinge 3 are fixed to the first shielding component 1 and the second shielding component 2 by bolts 31, and the bolts 31 are embedded in the reinforcing layer 112.

[0041] In some specific structures, the first shielding component 1 and the second shielding component 2 are opened or locked by a latch lock 4. The two ends of the latch lock 4 are fixed to the first shielding component 1 and the second shielding component 2 by bolts 2, and the bolts 2 are embedded in the reinforcing layer 112.

[0042] The usage process and principle of the above structure are as follows:

[0043] The first step is to use one hand to press the first shielding component 1 against the target tee, so that the first shielding component 1 and the tee are tightly fitted together;

[0044] The second step is to use the other hand to rotate the second shield 2 around the metal hinge 3 as the axis, so that the second shield 2 fits against the other side of the tee;

[0045] Third step: Hold the bottom of the shield with one hand to prevent the first shield 1 and the second shield 2 from separating, and complete the tight wrapping by positioning through the docking interface.

[0046] Fourth, use your other hand to lock the four pairs of hooks and latches to complete the installation.

[0047] See the image for the finished product. Figure 4 .

[0048] As attached Figure 2-3 As shown, the first shielding component 1 includes an integrally formed first inner layer 17 and a first outer layer 18 disposed outside the first inner layer 17. The first inner layer 17 and the first outer layer 18 have a height difference between their two ends. The end away from the pipe opening forms a first coupling docking interface 11, and the other end forms a second coupling docking interface 12 and a third coupling docking interface 13 on both sides of the pipe opening, respectively. The first inner layer 17 and the first outer layer 18 form a first coupling connector 14, a second coupling connector 15, and a third coupling connector 16 at the three pipe openings.

[0049] The second shielding component 2 includes an integrally formed second inner layer 27 and a second outer layer 28 disposed outside the second inner layer 27. The second inner layer 27 and the second outer layer 28 have a height difference between their two ends. The end away from the pipe opening forms a fourth coupling docking interface 21, and the other end forms a fifth coupling docking interface 22 and a sixth coupling docking interface 23 on both sides of the pipe opening, respectively. The second inner layer 27 and the second outer layer 28 form a fourth coupling connector 24, a fifth coupling connector 25, and a sixth coupling connector 26 at the three pipe openings.

[0050] The height difference between the two ends of the first inner layer 17 and the first outer layer 18, and the height difference between the two ends of the second inner layer 27 and the second outer layer 28 are attached. Figure 2 It is reflected in the local structure;

[0051] The first coupling docking interface 11 and the fourth coupling docking interface 21 have complementary structures;

[0052] The second coupling docking interface 12 and the fifth coupling docking interface 22 are structurally complementary;

[0053] The third coupling docking interface 13 and the sixth coupling docking interface 23 are structurally complementary;

[0054] The first coupling connector 14, the second coupling connector 15, and the third coupling connector 16 are respectively connected to the fourth coupling connector 24, the fifth coupling connector 25, and the sixth coupling connector 26;

[0055] As attached Figure 3 As shown, the first coupling docking interface 11, the fifth coupling docking interface 22, and the sixth coupling docking interface 23 are all in an extended state, while the fourth coupling docking interface 21, the second coupling docking interface 12, and the third coupling docking interface 13 are all in an inner stepped state. The sealing performance is improved by matching coupling docking to avoid radiation leakage.

[0056] As attached Figure 3-4 As shown, after the first coupling connector 14, the second coupling connector 15, and the third coupling connector 16 are spliced ​​with the fourth coupling connector 24, the fifth coupling connector 25, and the sixth coupling connector 26, a stepped groove is formed on both sides of the two pipe openings. This groove can be coupled to the extension piece set in the straight pipe section to avoid radiation leakage of the entire connection pipeline.

[0057] In some specific technical solutions, the protective layer 111 is made of silicone rubber. Silicone rubber can shape and fix the shield, prevent mechanical damage, and provide flame retardancy.

[0058] In some specific technical solutions, the reinforcing layer 112 adopts a metal fiber mesh layer, which can improve the mechanical properties of the shield and make the hinges and other connecting parts more firmly fixed.

[0059] In some specific technical solutions, the shielding layer 113 is a mixed layer of lead powder and silicone rubber, which effectively shields radiation.

[0060] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0061] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An easy-to-install universal radiation shield for pipe tees, comprising a hollow cavity matching a pipe tee, wherein the shield has three openings corresponding to the positions of the pipe tee, characterized in that, include: A first shielding member and a second shielding member are arranged opposite to each other, the first shielding member and the second shielding member are hinged together, and the two can be rotated to open or locked together after docking; Both the first shielding component and the second shielding component are layered structures, comprising a protective layer, a reinforcing layer, and a shielding layer arranged sequentially from the outside to the inside.

2. The easy-to-install, three-way universal radiation shield for pipelines according to claim 1, characterized in that, The first shielding component and the second shielding component are hinged together by a hinge. Both ends of the hinge are fixed to the first shielding component and the second shielding component by a bolt, and the bolt is embedded in the reinforcing layer.

3. The easy-to-install three-way universal radiation shield for pipelines according to claim 1, characterized in that, The first shielding component and the second shielding component are opened or locked by a latch lock. The two ends of the latch lock are fixed to the first shielding component and the second shielding component by bolts, and the bolts are embedded in the reinforcing layer.

4. The easy-to-install, three-way universal radiation shield for pipelines according to claim 1, characterized in that, The first shielding component includes an integrally formed first inner layer and a first outer layer disposed outside the first inner layer. The first inner layer and the first outer layer have a height difference between their two ends. The end away from the pipe opening forms a first coupling docking interface, and the other end forms a second coupling docking interface and a third coupling docking interface on both sides of the pipe opening, respectively. The first inner layer and the first outer layer form a first coupling seat, a second coupling seat, and a third coupling seat at the three pipe openings. The second shielding component includes an integrally formed second inner layer and a second outer layer disposed outside the second inner layer. The second inner layer and the second outer layer have a height difference between their two ends. The end away from the pipe opening forms a fourth coupling docking interface, and the other end forms a fifth coupling docking interface and a sixth coupling docking interface on both sides of the pipe opening, respectively. The second inner layer and the second outer layer form a fourth coupling connector, a fifth coupling connector, and a sixth coupling connector at the three pipe openings. The first coupling interface and the fourth coupling interface have complementary structures; The second coupling interface and the fifth coupling interface have complementary structures; The third coupling docking interface is structurally complementary to the sixth coupling docking interface. The first coupling connector, the second coupling connector, and the third coupling connector are respectively spliced ​​with the fourth coupling connector, the fifth coupling connector, and the sixth coupling connector.

5. The easy-to-install three-way universal radiation shield for pipelines according to claim 1, characterized in that, The protective layer is a silicone rubber layer.

6. The easy-to-install, three-way universal radiation shield for pipelines according to claim 1, characterized in that, The reinforcing layer is a metal fiber mesh layer.

7. The easy-to-install, three-way universal radiation shield for pipelines according to claim 1, characterized in that, The shielding layer is a mixture of lead powder and silicone rubber.

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