Mould for producing ray shielding tube

Abstract

The utility model relates to a mould, in particular to a mould for producing a ray shielding tube, which comprises an inner mould tube and an outer mould tube which are coaxially arranged, a cover plate covered on the inner mould tube, a pouring tube arranged on the cover plate, a bottom plate arranged at the lower end part of the outer mould tube, and a blocking device arranged between the outer mould tube and the inner mould tube, the outer die pipe comprises a pair of semicircular outer die sleeves which are symmetrically arranged; the blocking device comprises a partition plate vertically arranged between the inner mold pipe and the outer mold pipe, and a first blocking strip and a second blocking strip which are vertically arranged on the two opposite sides of the partition plate correspondingly. The width of the gap between the outer die pipe and the inner die pipe is L. The width of the first barrier strip and the width of the second barrier strip are both 0.5 L. The first barrier strip is arranged close to the inner die pipe, and the second barrier strip is arranged close to the outer die pipe. The mould for producing the ray shielding tube can be used for preparing the shielding tube with the contractible tube diameter.

Description

Technical Field

[0001] This utility model relates to the technical field of molds, and more specifically, to a mold for producing radiation shielding tubes. Background Technology

[0002] Gamma rays and neutron rays exist in nuclear power plants and their secondary loops, especially at the connection between the nuclear reactor and the pipeline. These activated and continuously released gamma rays and neutron rays pose a significant risk to pipelines, the environment, and personnel, and effective shielding of these rays is necessary.

[0003] The current common approach involves wrapping the mechanical connections of pipelines with lead sheets of a certain thickness and boron-containing sheets, which are frequently replaced. This approach not only suffers from difficulties in construction and low efficiency but also presents environmental challenges related to lead toxicity and decontamination. Therefore, some researchers use polymer materials (such as special phenyl vinyl silicone resin) mixed with protective materials to prepare radiation shielding tubes. However, for these shielding tubes, the sealing performance against gases and liquids is not the key issue; the crucial factor is their fit with the reactor pipeline. However, due to limitations in the pipeline structure and molds, the produced shielding tubes often fail to effectively fit the inner wall of the pipeline. Interference fitting can also cause potential compression and damage to the pipeline. Therefore, a targeted shielding tube mold needs to be designed. Utility Model Content

[0004] The purpose of this invention is to provide a mold for producing radiation shielding tubes, which can produce shielding tubes with shrinkable diameter.

[0005] This utility model is achieved through the following technical solution: The mold for producing X-ray shielding tubes of this utility model includes an inner mold tube and an outer mold tube arranged coaxially, a cover plate covering the inner mold tube, a casting pipe disposed on the cover plate, a base plate disposed at the lower end of the outer mold tube, and a barrier device disposed between the outer mold tube and the inner mold tube; the outer mold tube includes a pair of semi-circular outer mold sleeves arranged symmetrically; the barrier device includes a partition plate vertically disposed between the inner mold tube and the outer mold tube, and a first baffle and a second baffle plate vertically disposed on opposite sides of the partition plate; the width of the gap between the outer mold tube and the inner mold tube is L, and the width of the first baffle and the second baffle is 0.5L, the first baffle is disposed closer to the inner mold tube, and the second baffle is disposed closer to the outer mold tube.

[0006] Furthermore, both the first and second baffles are detachably connected to the partition.

[0007] Furthermore, both sides of the partition are provided with vertically arranged retaining strips, and the first retaining strip and the second retaining strip are provided with retaining grooves on the side near the partition, and the retaining strips are engaged in the retaining grooves.

[0008] Furthermore, each of the two outer mold sleeves has a connecting block on one side that is close to each other. The connecting block has a connecting hole, and a bolt is inserted into the connecting hole; the bolt is used to connect the two connecting blocks.

[0009] Furthermore, the side of the partition away from the first stop bar is engaged between the pair of outer mold sleeves.

[0010] Furthermore, the partition plate has a through hole that coincides with the connecting hole.

[0011] Furthermore, the lower end of the inner mold tube is provided with an annular first retaining ring on its outer wall.

[0012] Furthermore, the upper inner wall of the outer mold tube is provided with an annular second retaining ring, the thickness of the first retaining ring and the second retaining ring are both 0.5L, and the length of the first retaining ring and the second retaining ring are the same.

[0013] Furthermore, a circular support plate is provided on the upper side of the base plate, and the inner wall of the outer mold tube abuts against the outer wall of the support plate.

[0014] Furthermore, the side wall of the support plate is provided with an annular limiting ring, and the inner wall of the inner mold tube abuts against the outer side of the limiting ring.

[0015] The technical solution of this utility model has at least the following advantages and beneficial effects: The mold for producing radiation shielding tubes of this utility model, when in use, the outer mold tube is sleeved over the inner mold tube, the partition is clamped between the outer mold tube and the inner mold tube, and then the cover plate is placed on the upper end of the inner mold tube and the outer mold tube. Molten liquid material is poured into the space between the inner mold tube and the outer mold tube through the pouring pipe. After molding, the finished tube can be taken out. Due to the presence of the blocking device, the final finished tube has a Z-shaped opening on the side. Due to the structure of the first and second baffles, the opening side of the final finished tube can be reduced in diameter. After reduction, the opening side of the finished tube can also fit well, which also has a good radiation blocking effect. The adjustable tube diameter structure allows it to fit better against the inner wall of the reactor pipe and can be applied to reactor pipes of different diameters within a certain range. Attached Figure Description

[0016] Figure 1 A schematic diagram of the mold for producing X-ray shielding tubes provided in an embodiment of this utility model;

[0017] Figure 2 A two-view structural schematic diagram of the mold for producing radiation shielding tubes provided in an embodiment of this utility model;

[0018] Figure 3A schematic diagram of the unfolded structure of the mold for producing the radiation shielding tube provided in this embodiment of the utility model;

[0019] Figure 4 A cross-sectional view along a horizontal plane provided for an embodiment of this utility model;

[0020] Figure 5 A schematic diagram of the barrier device provided in an embodiment of this utility model from one perspective;

[0021] Figure 6 A two-view structural schematic diagram of the barrier device provided in an embodiment of this utility model;

[0022] Figure 7 A schematic diagram of the partition provided in an embodiment of this utility model from one perspective;

[0023] Figure 8 A two-view structural schematic diagram of the partition provided in an embodiment of this utility model;

[0024] Figure 9 This is a schematic diagram of the structure of the first baffle portion provided in an embodiment of the present utility model;

[0025] Figure 10 A schematic diagram of the structure of the finished tube provided in this embodiment of the utility model;

[0026] Icons: 11-Inner mold tube, 12-Outer mold tube, 121-Outer mold sleeve, 122-Connecting block, 123-Connecting hole, 13-Cover plate, 14-Pouring pipe, 15-Base plate, 16-Support plate, 17-Limiting ring, 20-Barrier device, 21-Partition plate, 22-First stop bar, 23-Second stop bar, 24-Clamping strip, 25-Clamping groove, 26-Through hole, 30-Finished tube. Detailed Implementation

[0027] Example

[0028] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 10As shown, the mold for producing the radiation shielding tube in this embodiment includes an inner mold tube 11 and an outer mold tube 12 arranged coaxially, a cover plate 13 covering the inner mold tube 11, a casting pipe 14 on the cover plate 13, a base plate 15 at the lower end of the outer mold tube 12, and a barrier device 20 between the outer mold tube 12 and the inner mold tube 11. The outer mold tube 12 includes a pair of symmetrically arranged semi-circular outer mold sleeves 121. The barrier device 20 includes a partition plate 21 vertically arranged between the inner mold tube 11 and the outer mold tube 12, and a first baffle 22 and a second baffle 23 vertically arranged on opposite sides of the partition plate 21. The width of the gap between the outer mold tube 12 and the inner mold tube 11 is L, and the width of the first baffle 22 and the second baffle 23 is 0.5L. The first baffle 22 is arranged closer to the inner mold tube 11, and the second baffle 23 is arranged closer to the outer mold tube 12. Specifically, in use, the outer mold tube 12 is fitted over the inner mold tube 11, the partition plate 21 is inserted between the outer mold tube 12 and the inner mold tube 11, and then the cover plate 13 is placed over the upper ends of the inner mold tube 11 and the outer mold tube 12. Molten liquid material is poured into the space between the inner mold tube 11 and the outer mold tube 12 through the pouring pipe 14. After molding, the finished tube 30 (as shown in the attached figure) is placed inside the inner mold tube 11. Figure 10 As shown, it can be removed. Due to the presence of the blocking device 20, the final product tube 30 has a Z-shaped opening on the side. Due to the structure of the first baffle 22 and the second baffle 23, the opening side of the final product tube 30 can be reduced in diameter. After reduction, the opening side of the product tube 30 can also fit well, which also has a good radiation blocking effect. The adjustable tube diameter structure allows it to fit better on the inner wall of the reactor pipe and can be used for reactor pipes of different diameters within a certain range.

[0029] In this embodiment, both the first stop bar 22 and the second stop bar 23 are detachably connected to the partition plate 21. Vertically arranged retaining strips 24 are provided on both sides of the partition plate 21. The first stop bar 22 and the second stop bar 23 have retaining grooves 25 on the side closest to the partition plate 21, and the retaining strips 24 are engaged in the retaining grooves 25. Specifically, by making the first stop bar 22 and the second stop bar 23 detachable, it is possible to select the appropriate thickness of the first stop bar 22 and the second stop bar 23 as needed, thereby setting openings of different sizes on the finished tube 30 and adjusting the compressibility range of the finished tube 30.

[0030] In this embodiment, each pair of outer mold sleeves 121 has a connecting block 122 on one side that is close to each other. The connecting block 122 has a connecting hole 123, and a bolt is inserted into the connecting hole 123. The bolt is used to connect the pair of connecting blocks 122. Specifically, the pair of outer mold sleeves 121 can be connected and fixed by inserting a bolt into the connecting hole 123.

[0031] In this embodiment, the side of the partition 21 furthest from the first stop bar 22 is engaged between a pair of outer mold sleeves 121. The partition 21 has a through hole 26, which coincides with the connecting hole 123. Specifically, the outer mold sleeves 121 clamp the partition 21 to fix its position, and the coincidence of the through hole 26 with the connecting hole 123 allows for precise positioning of the partition 21.

[0032] In this embodiment, the lower outer wall of the inner mold tube 11 is provided with an annular first retaining ring. The upper inner wall of the outer mold tube 12 is provided with an annular second retaining ring. The thickness of both the first and second retaining rings is 0.5L, and the lengths of the first and second retaining rings are the same. Specifically, the first and second retaining rings can form a convex-concave structure on the finished tube 30, which can better connect multiple finished tubes 30 end to end.

[0033] In this embodiment, a circular support plate 16 is provided on the upper side of the base plate 15, and the inner wall of the outer mold tube 12 abuts against the outer wall of the support plate 16. An annular limiting ring 17 is provided on the upper side wall of the support plate 16, and the inner wall of the inner mold tube 11 abuts against the outer side of the limiting ring 17. Specifically, the support plate 16 and the limiting ring 17 can effectively position and fix the inner mold tube 11 and the outer mold tube 12.

[0034] In summary, the mold for producing the radiation shielding tube in this embodiment involves placing the outer mold tube 12 over the inner mold tube 11, inserting the partition plate 21 between the outer mold tube 12 and the inner mold tube 11, and then covering the upper ends of the inner mold tube 11 and the outer mold tube 12 with the cover plate 13. Molten liquid material is then poured into the space between the inner mold tube 11 and the outer mold tube 12 through the pouring pipe 14. After molding, the finished tube 30 can be removed. Due to the presence of the blocking device 20, the final finished tube 30 has a Z-shaped opening on its side. Furthermore, due to the structure of the first baffle 22 and the second baffle 23, the opening side of the final finished tube 30 can be reduced in diameter. After reduction, the opening side of the finished tube 30 can also fit well, thus providing good radiation shielding. The adjustable tube diameter structure allows it to fit better against the inner wall of the reactor pipe and is applicable to reactor pipes of different diameters within a certain range.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mold for producing X-ray shielding tubes, characterized in that: It includes an inner mold tube (11) and an outer mold tube (12) arranged coaxially, a cover plate (13) covering the inner mold tube (11), a pouring pipe (14) provided on the cover plate (13), a bottom plate (15) provided at the lower end of the outer mold tube (12), and a barrier device (20) provided between the outer mold tube (12) and the inner mold tube (11); The outer mold tube (12) includes a pair of symmetrically arranged semi-circular outer mold sleeves (121); the barrier device (20) includes a partition (21) vertically disposed between the inner mold tube (11) and the outer mold tube (12), and a first baffle (22) and a second baffle (23) vertically disposed on opposite sides of the partition (21); The width of the gap between the outer mold tube (12) and the inner mold tube (11) is L. The width of the first baffle (22) and the second baffle (23) is 0.5L. The first baffle (22) is set close to the inner mold tube (11), and the second baffle (23) is set close to the outer mold tube (12).

2. The mold for producing X-ray shielding tubes according to claim 1, characterized in that: Both the first baffle (22) and the second baffle (23) are detachably connected to the partition (21).

3. The mold for producing X-ray shielding tubes according to claim 2, characterized in that: Both sides of the partition (21) are provided with vertically arranged locking strips (24). The first stop strip (22) and the second stop strip (23) are provided with a slot (25) on the side near the partition (21). The locking strip (24) is locked in the slot (25).

4. The mold for producing X-ray shielding tubes according to claim 1, characterized in that: Each of the pair of outer mold sleeves (121) has a connecting block (122) on one side close to each other. The connecting block (122) has a connecting hole (123) and a bolt is inserted into the connecting hole (123). The bolt is used to connect the pair of connecting blocks (122).

5. The mold for producing X-ray shielding tubes according to claim 4, characterized in that: The side of the partition (21) away from the first stop bar (22) is engaged between the pair of outer mold sleeves (121).

6. The mold for producing X-ray shielding tubes according to claim 5, characterized in that: The partition (21) has a through hole (26) which coincides with the connecting hole (123).

7. The mold for producing X-ray shielding tubes according to claim 1, characterized in that: The lower end of the inner mold tube (11) is provided with an annular first retaining ring.

8. The mold for producing X-ray shielding tubes according to claim 7, characterized in that: The upper inner wall of the outer mold tube (12) is provided with an annular second retaining ring. The thickness of the first retaining ring and the second retaining ring is 0.5L, and the length of the first retaining ring and the second retaining ring is the same.

9. The mold for producing X-ray shielding tubes according to claim 1, characterized in that: The bottom plate (15) is provided with a circular support plate (16) on its upper side, and the inner wall of the outer mold tube (12) abuts against the outer wall of the support plate (16).

10. The mold for producing X-ray shielding tubes according to claim 9, characterized in that: The upper side wall of the support plate (16) is provided with an annular limiting ring (17), and the inner wall of the inner mold tube (11) abuts against the outer side of the limiting ring (17).

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