Lead protection pressure relief opening device applied to radiation machine room
By employing an interlocking, staggered-layer plate and a corrugated exhaust pipe design in the pressure relief device of the radiation room, combined with lead plate material, the problems of radiation leakage and structural complexity were solved, achieving safe and efficient pressure relief and protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-04-03
AI Technical Summary
Existing pressure relief devices for radiation rooms are prone to radiation leakage when depressurizing, and they are also complex in structure, costly, and difficult to maintain, making it difficult to balance safety and economy.
A lead-protected pressure relief device was designed, which adopts an interlocking staggered plate structure and a corrugated exhaust pipe. Combined with the elastic connection between the movable plate and the outer frame, it realizes multiple refractions and energy attenuation of rays, and blocks rays with lead plate material to ensure the safety and effectiveness of the pressure relief process.
It effectively intercepts radioactive rays during the depressurization process, reduces the risk of radiation leakage, improves the safety and convenience of equipment use, and reduces maintenance difficulty and cost.
Smart Images
Figure CN224082196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lead protection pressure relief port devices, specifically a lead protection pressure relief port device used in radiation rooms. Background Technology
[0002] In a radiation room, effective protection against radiation is necessary to ensure the safety of staff and the surrounding environment. In some special circumstances, such as heat generated by equipment operation or fire, the pressure inside the radiation room may increase. If the pressure is not released in time, it may damage the structure and equipment of the room or even cause a safety accident.
[0003] Most existing pressure relief devices in radiation rooms only focus on pressure relief functions while neglecting radiation protection, which can easily cause radiation leakage and harm to surrounding personnel and the environment. In addition, some pressure relief devices with protective functions have complex structures and high costs, and their protective performance may decline during long-term use, making maintenance and replacement difficult. Utility Model Content
[0004] The purpose of this invention is to provide a lead-protected pressure relief device for use in radiation rooms, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A lead-protected pressure relief device for use in radiation rooms, comprising:
[0007] An outer frame, wherein a first staggered plate is uniformly fixedly installed on the inner wall of the outer frame, the first staggered plate is provided with several layers in a staggered manner, and a movable plate is rotatably connected to the inner wall of the outer frame, the bottom outer wall of the movable plate is connected to the outer wall of the first staggered plate through an elastic element;
[0008] A pressure relief cover is fixedly installed on the top of the outer frame by bolts, and an exhaust pipe is evenly fixedly installed on the inner wall of the pressure relief cover.
[0009] In a preferred embodiment of this utility model, the bottom end of the outer frame is provided with a first skirt, the outer frame is fixedly installed on the outer wall of the roof of the radiation room by expansion bolts, the inner wall of the roof is provided with a pressure relief port, the first skirt is fixedly installed on the top of the pressure relief port by expansion bolts, a sealing ring is provided at the connection between the first skirt and the roof, and the connection between the first skirt and the roof is coated with sealant.
[0010] In a preferred embodiment of the present invention, the first staggered plate is longitudinally distributed, and the top inner wall of the first staggered plate is rotatably connected to a movable plate via a hinge, the movable plate including a second staggered plate.
[0011] In a preferred embodiment of this utility model, the second staggered plate and the first staggered plate are sequentially fitted and sealed together, and sealing rings are fixedly installed on all four outer walls of the second staggered plate. When the movable plate is closed with the inner wall of the outer frame, a sealed connection is formed.
[0012] In a preferred embodiment of this utility model, the elastic element includes two movable blocks. The two movable blocks are respectively fixedly installed on the outer wall of the bottom of the movable plate and the inner wall of the outer frame. Both movable blocks are rotatably connected to spring seats through axle pins, and the two spring seats are elastically connected by a return spring.
[0013] In a preferred embodiment of this utility model, the pressure relief cover is cone-shaped, and a third skirt is provided around the bottom of the pressure relief cover, and a second skirt is provided on the top outer wall of the outer frame.
[0014] In a preferred embodiment of this utility model, the second skirt and the third skirt are fixedly connected by bolts, and a sealing ring is provided at the connection between the second skirt and the third skirt.
[0015] In a preferred embodiment of this utility model, the connection between the second skirt and the third skirt is coated with sealant, the exhaust pipe is wavy, and the angle between the outlet opening of the exhaust pipe and the horizontal plane is set to -45°.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
[0017] 1. By setting up a wavy exhaust pipe, the exhaust pipe has multiple bends inside, which allows the airflow to be discharged smoothly, while also blocking the direction of the radioactive rays inside the radiation room. The rays are attenuated by multiple refractions, thus preventing the radioactive rays from being emitted into the environment through the exhaust pipe.
[0018] 2. By setting an elastic movable connection between the movable plate and the outer frame, the movable plate can be opened and depressurized under air pressure, and automatically closed after depressurization, thus facilitating the automatic opening and closing of the depressurization port and improving the ease of use;
[0019] 3. By setting up staggered interlocking first and second staggered plates for use, and setting a wavy exhaust pipe on the top of the pressure relief cover, the radioactive rays can be effectively intercepted during the pressure relief process, thus improving the practicality and safety of the equipment. Attached Figure Description
[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0021] Figure 1 This is a schematic diagram of the main structure of a lead-protected pressure relief device used in a radiation room.
[0022] Figure 2 This is a cross-sectional structural diagram of a lead-protected pressure relief device used in a radiation room.
[0023] Figure 3 This is an exploded structural diagram of a lead-protected pressure relief device used in a radiation room.
[0024] Figure 4 A schematic diagram of the outer frame structure of a lead-protected pressure relief device used in a radiation room;
[0025] Figure 5 A bottom view of the inner cover plate structure of a lead-protected pressure relief device used in a radiation room;
[0026] Figure 6 This is a schematic diagram of the elastic expansion joint structure in a lead-protected pressure relief device used in a radiation room.
[0027] Figure 7 This is a bottom view schematic diagram of the pressure relief cover in a lead-protected pressure relief device used in radiation rooms.
[0028] In the diagram: Roof 100, pressure relief port 110, outer frame 200, first staggered floor 210, movable plate 230, hinge 231, second staggered floor 232, movable block 240, spring seat 241, return spring 250, pressure relief cover 300, exhaust pipe 310. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0030] Example 1: As Figures 1-5 ,include
[0031] An outer frame 200 has a first staggered plate 210 uniformly fixedly installed on its inner wall. The first staggered plate 210 has several layers distributed in a staggered manner. A movable plate 230 is rotatably connected to the inner wall of the outer frame 200. The bottom outer wall of the movable plate 230 is connected to the outer wall of the first staggered plate 210 through an elastic element.
[0032] The pressure relief cover 300 is fixedly installed on the top of the outer frame 200 by bolts, and the exhaust pipe 310 is evenly fixedly installed on the inner wall of the pressure relief cover 300.
[0033] The specific application scenario of this embodiment is as follows: By setting an elastic movable connection between the movable plate 230 and the outer frame 200, the movable plate 230 can be opened and depressurized under air pressure, and automatically closed after depressurization, thus facilitating the automatic opening and closing of the pressure relief port 110 and improving the convenience of use. By setting the first staggered plate 210 and the second staggered plate 232 with staggered plug-in connection and setting a wavy exhaust pipe 310 on the top of the pressure relief cover 300, the radioactive rays can be effectively intercepted during the depressurization process, improving the practicality and safety of the equipment.
[0034] Example 2: As Figure 3 and Figure 4 The outer frame 200 has a first skirt at its bottom end. The outer frame 200 is fixedly installed on the outer wall of the roof 100 of the radiation room by expansion bolts. The inner wall of the roof 100 has a pressure relief port 110. The first skirt is fixedly installed on the top of the pressure relief port 110 by expansion bolts. A sealing ring is provided at the connection between the first skirt and the roof 100. The connection between the first skirt and the roof 100 is coated with sealant. The first staggered plate 210 is longitudinally distributed. The top inner wall of the first staggered plate 210 is rotatably connected to the movable plate 230 by hinge 231. The movable plate 230 includes a second staggered plate 232. The second staggered plate 232 and the first staggered plate 210 are sequentially fitted and sealed. Sealing rings are fixedly installed on all four outer walls of the second staggered plate 232. When the movable plate 230 is closed with the inner wall of the outer frame 200, it is sealed.
[0035] The specific application scenario of this embodiment is as follows: By setting the first staggered plate 210 and the second staggered plate 232 to be staggered, the interception accuracy of radioactive rays can be improved, the possibility of leakage of radioactive rays can be avoided, and the safety of equipment use can be improved. The first staggered plate 210 and the second staggered plate 232 are elastically sealed, so that the movable plate 230 can be rotated with a small stroke, so that a sufficient gap for airflow can be formed between the first staggered plate 210 and the second staggered plate 232. At the same time, it can also prevent the movable plate 230 from rotating at too large an angle, causing radioactive rays to be discharged from the radiation room, thus improving the safety of equipment use.
[0036] Example 3: As Figure 5 and Figure 6The elastic element includes a movable block 240. There are two movable blocks 240. The two movable blocks 240 are fixedly installed on the bottom outer wall of the movable plate 230 and the inner wall of the outer frame 200, respectively. Both movable blocks 240 are rotatably connected to spring seats 241 through shaft pins. The two spring seats 241 are elastically connected to each other through a return spring 250.
[0037] The specific application scenario of this embodiment is as follows: By setting a movable block 240 for rotating connection of spring seat 241, the two spring seats 241 can be rotated to connect the reset spring 250. The reset spring 250 rotates to connect the movable plate 230 and the outer frame 200. When the air pressure inside the radiation room is too high, the movable plate 230 is pushed to flip, creating a gap at the connection between the second staggered plate 232 and the first staggered plate 210, allowing gas to escape. At the same time, the second staggered plate 232 and the first staggered plate 210 block the direction of radioactive rays layer by layer, thereby depressurizing the inside of the radiation room and reducing the risk of radioactive ray escape. The material of the second staggered plate 232 and the first staggered plate 210 is lead plate, and the density of lead plate is 11.34 g / cm³. 3 It can effectively block X-rays and gamma rays, and its thickness is designed according to the radiation energy to ensure that the leakage dose meets safety standards.
[0038] Example 4: Figure 3 and Figure 7 The pressure relief cover 300 is cone-shaped, and a third skirt is provided around the bottom of the pressure relief cover 300. The top outer wall of the outer frame 200 is provided with a second skirt 220. The second skirt 220 and the third skirt are fixedly connected by bolts. A sealing ring is provided at the connection between the second skirt 220 and the third skirt. The connection between the second skirt 220 and the third skirt is coated with sealant. The exhaust pipe 310 is wavy, and the angle between the opening of the exhaust pipe 310 and the horizontal plane is set to -45°.
[0039] The specific application scenario of this embodiment is as follows: by setting the pressure relief cover 300 to be conical, the gas released through the movable plate 230 can be collected at the exhaust pipe 310, which facilitates the rapid discharge of gas. By setting the exhaust pipe 310 to be wavy, the exhaust pipe 310 has multiple bends inside, so that the airflow can be discharged smoothly, while also blocking the direction of travel of radioactive rays inside the radiation room. After the rays are refracted multiple times, their energy is attenuated, thereby preventing radioactive rays from being emitted into the environment through the exhaust pipe 310.
[0040] The working principle of this utility model is as follows: Those skilled in the art will fix the outer frame 200 to the pressure relief port 110 at the top of the roof 100 using expansion bolts, and apply sealant to the connection between the outer frame 200 and the pressure relief port 110 for sealing. Then, the movable plate 230 is inserted and installed on the top of the outer frame 200, so that the second staggered plate 232 and the first staggered plate 210 are connected by an insertion joint. The outer walls of the second staggered plate 232 are sealed by installing sealing rings. The top side outer wall of the movable plate 230 is rotatably connected to the inner wall of the outer frame 200 via a hinge 231. Movable blocks 240 are fixedly installed on the bottom outer wall away from the hinge 231 and on the inner wall of the outer frame 200. Spring seats 241 are rotatably connected to the outer walls of both movable blocks 240. A return spring 250 is installed between the spring seats 241. When the gas pressure inside the radiation chamber is greater than the elastic potential energy of the return spring 250, the gas compresses the bottom of the movable plate 230, causing the movable plate 230 to rotate around the hinge 231. This creates a gap at the connection between the second staggered plate 232 and the first staggered plate 210, allowing the gas inside the radiation chamber to enter the pressure relief cover 300 through the gap. The gas is then discharged through the exhaust pipe 310 in the pressure relief cover 300, relieving pressure inside the radiation chamber and reducing the gas pressure. When the pressure value is less than the elastic potential energy of the return spring 250, the movable plate 230 is reconnected to the outer frame 200 under the reset action of the return spring 250, thus sealing the top of the pressure relief port 110.
[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A lead protective pressure relief port device for use in a radiation machine room, characterized by, Comprising The outer frame (200) is uniformly fixed and installed with a first staggered plate (210) on the inner wall, the first staggered plate (210) is staggered and distributed with several layers, the movable plate (230) is rotationally connected to the inner wall of the outer frame (200), and the bottom outer wall of the movable plate (230) is connected to the outer wall of the first staggered plate (210) through an elastic member. The pressure relief cover (300) is fixedly installed on the top of the outer frame (200) by bolts, and the inner wall of the pressure relief cover (300) is uniformly fixed and installed with an exhaust pipe (310).
2. The lead protective pressure relief port device for use in a radio room according to claim 1, characterized in that, The bottom end of the outer frame (200) is provided with a first skirt, the outer frame (200) is fixedly installed on the outer wall of the roof (100) of the radio machine room by expansion bolts, the inner wall of the roof (100) is provided with a pressure relief port (110), the first skirt is fixedly installed on the top of the pressure relief port (110) by expansion bolts, a sealing ring is arranged at the connection between the first skirt and the roof (100), and sealing glue is coated on the connection between the first skirt and the roof (100).
3. The lead protective pressure relief port device for use in a radiation machine room according to claim 1, wherein The first staggered plate (210) is longitudinally distributed, the top inner wall of the first staggered plate (210) is rotationally connected to the movable plate (230) through a hinge (231), and the movable plate (230) comprises a second staggered plate (232).
4. The lead protective pressure relief port device for use in a radiation machine room according to claim 3, characterized in that, The second staggered plate (232) is sealingly connected to the first staggered plate (210) in layers, sealing rings are fixedly installed on the outer wall of the second staggered plate (232), and the movable plate (230) is sealingly connected to the inner wall of the outer frame (200) when the movable plate (230) is closed.
5. The lead protective pressure relief port device for use in a radiation machine room of claim 1, wherein, The elastic member comprises a movable block (240), two movable blocks (240) are fixedly installed on the bottom outer wall of the movable plate (230) and the inner wall of the outer frame (200), respectively, the two movable blocks (240) are rotationally connected to spring seats (241) through shaft pins, and the spring seats (241) are elastically connected through a return spring (250).
6. The lead protective pressure relief port device for use in a radio room of claim 1, wherein, The pressure relief cover (300) is conical, the bottom end of the pressure relief cover (300) is provided with a third skirt, and the top outer wall of the outer frame (200) is provided with a second skirt (220).
7. The lead protective pressure relief port device for use in a radio room according to claim 6, characterized in that, The second skirt (220) and the third skirt are fixedly connected through bolts, and the connection between the second skirt (220) and the third skirt is provided with a sealing ring.
8. The lead protective pressure relief port device for use in a radio room according to claim 7, characterized in that, The connection between the second skirt (220) and the third skirt is coated with sealing glue, the exhaust pipe (310) is wave-shaped, and the output end of the exhaust pipe (310) is opened at an angle of -45° with the horizontal plane.