Radiation-proof pressure release valve

Abstract

The utility model relates to the field of pressure release valves, and discloses an anti-radiation pressure release valve which comprises an anti-radiation pipeline, one end of the anti-radiation pipeline extends out of a room and is provided with a pressure release component, the pressure release component is used for releasing pressure when air pressure exceeds a set value, and an anti-radiation component is arranged in the anti-radiation pipeline. The anti-radiation component is used for preventing radiation leakage during pressure relief, the anti-radiation component comprises a plurality of protection assemblies distributed in the extending direction of the anti-radiation pipeline in an array mode, and each protection assembly comprises a first protection plate and a second protection plate which are arranged in the anti-radiation pipeline. The outer surface of the first protection plate or the second protection plate is in sealing fit with the pipe wall of the anti-radiation pipeline, a plurality of first air holes are formed in the first protection plate in an array mode, a plurality of second air holes are formed in the second protection plate in an array mode, and the first air holes and the second air holes are staggered.

Description

Technical Field

[0001] The utility model relates to the field of pressure relief valves, in particular to a radiation-proof pressure relief valve. Background Art

[0002] A pressure relief valve is a valve structure that automatically opens to relieve pressure when the pressure exceeds the set value, and automatically closes when the pressure is lower than the set value, ensuring that the pressure of the protected object is below the set value. A radiation-proof pressure relief valve is a pressure relief valve structure that can prevent radiation leakage.

[0003] After searching, a Chinese utility model patent with authorization announcement number CN218625601U was found, which discloses a gas pressure relief valve, which separates the airflow channel by a borax plate set in the pipeline, and divides the airflow channel into a serpentine absorption channel, so that when the wire beam radiation passes through, the wire beam radiation is fully reflected and absorbed, and a large amount of wire beam radiation is absorbed by the borax plate, which effectively reduces the radiation at the external outlet of the pipeline, and the valve body is set in a U shape, so that a longer flow channel is obtained when the wall width remains unchanged, and the radiation absorption capacity is further improved. However, it has some shortcomings: it uses air pressure to lift the sealing plate, so that the sealing plate is turned over, and then the airflow channel is opened, and the air is discharged outward through the airflow channel. In other words, the triggering condition of the pressure relief valve is to drive the sealing plate to open the sealing plate. The sealing plate is flipped. However, the sealing plate is arranged at one end of the air flow channel close to the outdoors. In addition to the increased air pressure in the room that can lift up and flip the sealing plate, it can also be lifted up and flipped when there is a strong wind outside. This is inconsistent with the nature of the pressure relief valve that automatically closes when the pressure is lower than the set value. In other words, if the prior art is not used in buildings but in the pressure relief protection of equipment, it is easy for outside air to enter the interior of the equipment and affect the internal air pressure of the equipment. In addition, when the air pressure is stable and the pressure relief valve is closed, the prior art uses the gravity of the sealing plate itself to close the air flow channel. This method has high requirements on the center of gravity of the sealing plate. If the center of gravity deviates slightly, the sealing plate cannot remain vertically arranged, that is, the air flow channel cannot be closed, that is, the closure of the pressure relief valve is affected.

[0004] Based on the above, the utility model proposes a radiation-proof pressure relief valve. Utility Model Content

[0005] In order to solve the problems mentioned in the above background, the utility model provides a radiation-proof pressure relief valve.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows.

[0007] The radiation-proof pressure relief valve comprises a radiation-proof pipe, one end of which extends to the outdoors and is provided with a pressure relief component. The pressure relief component is used to relieve pressure when the air pressure exceeds a set value. The radiation-proof pipe is provided with a radiation-proof component. The radiation-proof component is used to prevent radiation leakage during pressure relief.

[0008] Furthermore, the pressure relief component includes a horizontal pipe connected to the radiation protection pipe and arranged horizontally, a flip plate is hingedly arranged in the horizontal pipe, and a hinge axis formed at the hinge is horizontally arranged and close to the lower pipe wall of the horizontal pipe, and both ends of the flip plate are semicircular, and in an initial state, both ends of the flip plate are tangent to the upper pipe wall and the lower pipe wall of the horizontal pipe respectively;

[0009] A convex plate is vertically extended downward on the upper pipe wall of the horizontal pipe. The convex plate is located on the side of the flip plate facing the radiation protection pipe and the convex plate is in contact with the flip plate.

[0010] Furthermore, a coil spring is provided at the connection between the hinge shaft and the horizontal pipe, and magnets are embedded on the surfaces where the convex plate and the flip plate are in contact, and the magnetic poles of the two groups of magnets are opposite to each other.

[0011] Furthermore, the pressure relief component includes a vertical pipe connected to the radiation protection pipe and arranged vertically, a built-in step is provided in the vertical pipe, a sealing plate is placed on the upper end surface of the built-in step, an upper bracket is provided at the upper pipe mouth of the vertical pipe, and a spring is provided between the upper bracket and the sealing plate.

[0012] Furthermore, the radiation protection pipe is in a wave shape.

[0013] Furthermore, the radiation protection structure includes a plurality of groups of protection components distributed in an array along the extension direction of the radiation protection pipeline.

[0014] Furthermore, the protection assembly includes a protection plate 1 and a protection plate 2 arranged in the radiation protection pipe, and the outer surface of the protection plate 1 or the protection plate 2 forms a sealing fit with the pipe wall of the radiation protection pipe;

[0015] A plurality of first air holes are arranged in an array on the first protective plate, and a plurality of second air holes are arranged in an array on the second protective plate, and the first air holes are staggered with the second air holes.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the utility model, the purpose of radiation protection and pressure relief can be achieved, the pressure relief process is smooth and smooth, and after the pressure relief is completed, the pressure relief component is automatically closed and is not affected by external wind force. In addition, the setting of protective plate one and protective plate two can ensure that the radiation is fully in contact with the protective plate, and the radiation protection effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of embodiment 1;

[0019] Figure 2 is a schematic diagram of the pressure relief component in the first embodiment;

[0020] Figure 3 It is a schematic diagram of Embodiment 2;

[0021] Figure 4 is a schematic diagram of a pressure relief component in Embodiment 2;

[0022] Figure 5 Schematic diagram of radiation protection components.

[0023] The reference numerals in the accompanying drawings are:

[0024] 1. Radiation-proof pipe; 101. Protective plate one; 102. Air hole one; 103. Protective plate two; 104. Air hole two; 2. Horizontal pipe; 201. Flip plate; 202. Convex plate; 3. Vertical pipe; 301. Built-in step; 302. Sealing plate; 303. Upper bracket; 304. Spring. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0026] The radiation protection pressure relief valve comprises a radiation protection pipe 1, one end of which extends to the outdoors and is provided with a pressure relief component, which is used to relieve pressure inside a building or equipment when the air pressure exceeds a set value. In order to prevent radiation leakage, a radiation protection component is provided inside the radiation protection pipe 1 to prevent radiation leakage during pressure relief.

[0027] Embodiment 1

[0028] like Figure 1 and Figure 2 As shown, the pressure relief component includes a horizontal pipe 2 which is connected to the radiation protection pipe 1 and is arranged horizontally. A flip plate 201 is hingedly arranged in the horizontal pipe 2 and the hinge axis formed at the hinge is arranged horizontally and close to the lower pipe wall of the horizontal pipe 2. Both ends of the flip plate 201 are rounded and have a semicircular shape. In the initial state, they are tangent to the upper pipe wall and the lower pipe wall of the horizontal pipe 2 respectively.

[0029] A convex plate 202 extends vertically downward from the upper tube wall of the horizontal pipe 2 . The convex plate 202 is located on the side of the flip plate 201 facing the radiation protection pipe 1 and the convex plate 202 is in contact with the flip plate 201 .

[0030] A coil spring is provided at the connection between the hinge shaft and the horizontal pipe 2, and magnets are embedded on the surface where the convex plate 202 and the flip plate 201 are in contact. The magnetic poles of the two groups of magnets are opposite to each other, which is magnetic adsorption.

[0031] Working process of embodiment 1:

[0032] When the indoor air pressure is greater than the set value, the air pressure will overcome the coil spring and magnetic adsorption, driving the flip plate 201 to flip, and the horizontal pipe 2 is opened to release the pressure. At this time, the flip direction of the flip plate 201 is named forward.

[0033] After the pressure relief is completed, the coil spring drives the flip plate 201 to flip back and reset, and then under the action of magnetic adsorption, the convex plate 202 is attached to the flip plate 201, and the horizontal pipe 2 is blocked by the flip plate 201;

[0034] Thereafter, if the external wind is strong and acts on the lower flip plate 201, due to the existence of the convex plate 202, the flip plate 201 will not be blown reversely by the wind; since the hinge axis is close to the lower pipe wall of the horizontal pipe 2, based on the lever principle, it is difficult for the wind to overcome the magnetic adsorption and the elastic force of the coil spring to cause the flip plate 201 to flip forward, that is, the pressure relief component remains in a closed state.

[0035] Embodiment 2

[0036] like Figure 3 and Figure 4 As shown, the pressure relief component includes a vertical pipe 3 which is connected to the radiation protection pipe 1 and arranged vertically, a built-in step 301 is provided in the vertical pipe 3, a sealing plate 302 is placed on the upper end surface of the built-in step 301, an upper bracket 303 is provided at the upper pipe mouth of the vertical pipe 3, and a spring 304 is provided between the upper bracket 303 and the sealing plate 302.

[0037] There is a gap between the outer surface of the sealing plate 302 and the pipe wall of the vertical pipe 3 .

[0038] Working process of embodiment 2:

[0039] When the indoor air pressure is greater than the set value, the air pressure will overcome the elastic force of the spring 304, driving the sealing plate 302 to move upward, and the vertical pipe 3 will be opened to release the pressure;

[0040] After the pressure relief is completed, the spring 304 drives the sealing plate 302 to move downward and reset, and the vertical pipe 3 is blocked by the sealing plate 302, and the pressure relief is closed;

[0041] Since the vertical pipe 3 is arranged vertically, the external wind will not affect the pressure relief component. In addition, the pipe wall of the vertical pipe 3 is smooth, so even if a small amount of radiation is discharged through the vertical pipe 3, its general direction is upward, which can constrain the path of the small amount of radiation that escapes and minimize the possibility of contact with surrounding people.

[0042] Embodiment 3

[0043] like Figure 5 As shown, the radiation protection pipe 1 is in a wave shape, and a radiation protection component is arranged inside it. The radiation protection component includes a plurality of groups of protection components distributed in an array along the extension direction of the radiation protection pipe 1.

[0044] The protection component includes a protection plate 1 101 and a protection plate 2 103 arranged in the radiation protection pipe 1 , and the outer surface of the protection plate 101 or the protection plate 2 103 and the pipe wall of the radiation protection pipe 1 form a sealing fit.

[0045] A plurality of air holes 102 are arranged in an array on the protective plate 101, and a plurality of air holes 104 are arranged in an array on the protective plate 103, and the air holes 102 and the air holes 104 are offset; in this way, during the pressure relief process, no matter how the trajectory of the radiation entering the radiation protection pipe 1 is distributed, it will contact the protective plate 101 or the protective plate 2 103, and be reflected and absorbed by the protective plate 101 or the protective plate 2 103.

[0046] The fireproof board can refer to the borax board technology in the patent literature mentioned in the background technology.

[0047] The composition of the radiation protection pipe 1 can refer to the valve body technology in the patent literature mentioned in the background technology.

[0048] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A radiation-proof pressure relief valve, comprising a radiation-proof pipeline (1), characterized in that: One end of the radiation-proof pipe (1) extends outdoors and is provided with a pressure relief component, which is used to relieve pressure when the air pressure exceeds a set value; the radiation-proof pipe (1) is provided with a radiation-proof component, which is used to prevent radiation leakage during pressure relief; The pressure relief component comprises a horizontal pipe (2) which is connected to the radiation protection pipe (1) and arranged horizontally, a flip plate (201) is hingedly arranged in the horizontal pipe (2), and a hinge axis formed at the hinge is arranged horizontally and close to the lower pipe wall of the horizontal pipe (2), both ends of the flip plate (201) are in the shape of semicircular surfaces, and in an initial state, both ends of the flip plate (201) are tangent to the upper pipe wall and the lower pipe wall of the horizontal pipe (2) respectively; A convex plate (202) extends vertically downward from the upper tube wall of the horizontal pipe (2), the convex plate (202) is located on the side of the flip plate (201) facing the radiation protection pipe (1), and the convex plate (202) is in contact with the flip plate (201); A coil spring is provided at the connection between the hinge shaft and the horizontal pipe (2); magnets are embedded on the surfaces where the convex plate (202) and the flip plate (201) are in contact; the magnetic poles of the two groups of magnets are opposite to each other.

2. The radiation-proof pressure relief valve according to claim 1, characterized in that: The pressure relief component comprises a vertical pipe (3) which is connected to the radiation protection pipe (1) and arranged vertically, wherein a built-in step (301) is provided in the vertical pipe (3), a sealing plate (302) is placed on the upper end surface of the built-in step (301), an upper bracket (303) is provided at the upper pipe opening of the vertical pipe (3), and a spring (304) is provided between the upper bracket (303) and the sealing plate (302).

3. The radiation protection pressure relief valve according to claim 1, characterized in that: The radiation protection pipe (1) is in a wave shape.

4. The radiation-proof pressure relief valve according to claim 1, characterized in that: The radiation protection component comprises a plurality of groups of protection components distributed in an array along the extension direction of the radiation protection pipe (1).

5. The radiation-proof pressure relief valve according to claim 4, characterized in that: The protection component comprises a first protection plate (101) and a second protection plate (103) arranged in the radiation protection pipe (1), wherein the outer surface of the first protection plate (101) or the second protection plate (103) and the pipe wall of the radiation protection pipe (1) form a sealing fit; A plurality of air holes 1 (102) are arranged in an array on the protective plate 1 (101), and a plurality of air holes 2 (104) are arranged in an array on the protective plate 2 (103), and the air holes 1 (102) and the air holes 2 (104) are staggered.

Images