Regional magnetic shielding structure for nuclear magnetic resonance laboratory

Abstract

The utility model provides a magnetic shielding structure for a nuclear magnetic resonance laboratory area. The magnetic shielding structure comprises a machine room, a machine room shielding layer, a machine room silencing wall body and a strong and weak current waveguide port, the machine room shielding layer is arranged at the bottom of the machine room; the machine room silencing wall bodies are arranged around the machine room; the machine room shielding layer is arranged in the machine room, the strong and weak current waveguide port is arranged in the machine room, and the strong and weak current waveguide port is arranged at the bottom of the machine room noise reduction wall body on one side close to the nuclear magnetic resonance equipment in the machine room. The machine room, the machine room shielding layer, the machine room noise reduction wall body and the strong and weak current waveguide port form a closed electromagnetic environment to block internal and external bidirectional interference; meanwhile, the sound insulation effect is achieved.

Description

A magnetic shielding structure for a nuclear magnetic resonance laboratory region Technical Field

[0001] This utility model relates to the fields of scientific research and medical care, and especially to the field of construction, specifically a magnetic shielding structure for the region of a nuclear magnetic resonance laboratory. Background Technology

[0002] Magnetic resonance imaging (MRI) relies on the resonance effect of atoms in a magnetic field. It requires the precise capture of weak electromagnetic signals, necessitating the design and construction of shielded rooms to create a closed electromagnetic environment that blocks bidirectional interference from both inside and outside. Furthermore, during the operation of MRI equipment, the rapid switching of current in the gradient coils generates high-frequency mechanical vibrations, requiring acoustic shielding. MRI scan noise can reach over 110 dB, far exceeding the human comfort threshold. This noise can also be conducted to the outside through the room structure, interfering with the acquisition of sensitive signals from precision electronic equipment (such as electrocardiogram monitors). Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a magnetic shielding structure for the nuclear magnetic resonance laboratory area to solve the difficulties of the prior art.

[0004] To achieve the above and other related objectives, this utility model provides a magnetic shielding structure for a nuclear magnetic resonance laboratory area, comprising: a machine room 1, a machine room shielding layer 2, a machine room soundproof wall 3, and strong and weak electromagnetic waveguide ports 4;

[0005] The shielding layer 2 of the computer room is located at the bottom of the computer room 1;

[0006] The soundproof walls 3 of the computer room are set around the computer room 1;

[0007] The strong and weak waveguide ports 4 are located at the bottom of the soundproof wall 3 of the computer room 1, on the side near the nuclear magnetic resonance equipment.

[0008] According to the preferred scheme, computer room 1 includes:

[0009] The top and bottom keel 11 are located at the top and bottom of the computer room 1, respectively;

[0010] Vertical keel 12, the vertical keel 12 are arranged at equal intervals around the computer room 1, and the top and bottom of the vertical keel 12 are connected to the top and bottom keel 11 by self-tapping bolts;

[0011] Calcium acid plate 13 and antibacterial medical clean plate 14 are arranged adjacent to each other between vertical keels 12. Calcium acid plate 13 is located outside the machine room 1, and antibacterial medical clean plate 14 is located inside the machine room 1.

[0012] According to the preferred embodiment, the computer room shielding layer 2 includes:

[0013] Decorative floor 21, which is installed at the top of the bottom keel 11 of the computer room 1;

[0014] A concrete backfill reinforcement layer 22 is provided at the bottom of the decorative floor 21;

[0015] The No. 1 SBS moisture barrier layer 23 is provided in two layers, and the two layers of the No. 1 SBS moisture barrier layer 23 are stacked at the bottom of the concrete backfill reinforcement layer 22.

[0016] Copper plate 24, wherein the copper plate 24 is disposed at the bottom of an SBS moisture-proof layer 23;

[0017] PVC insulation board 25, wherein the PVC insulation board 25 is disposed at the bottom of the copper plate 24;

[0018] The second SBS moisture-proof layer 26 is provided in two layers, and the two layers of the second SBS moisture-proof layer 26 are stacked at the bottom of the PVC insulation board 25.

[0019] The magnet bearing base 27 is located at the bottom of the second SBS moisture-proof layer 26.

[0020] According to the preferred scheme, the soundproof wall 3 of the computer room includes:

[0021] Flame-retardant wood hanging strips 31 are arranged between vertical keels 12 and between calcium acid board 13 and antibacterial medical clean board 14. The flame-retardant wood hanging strips 31 are stacked vertically and interlocked with each other near the side. The upper flame-retardant wood hanging strip 31 is connected to the antibacterial medical clean board 14 by expansion bolts, and the lower flame-retardant wood hanging strip 31 is connected to the calcium acid board 13 by expansion bolts.

[0022] Sound insulation cotton 32 is attached to the side of the calcium acid board 13 away from the antibacterial medical clean plate 14 by pasting.

[0023] The computer room exterior wall 33 is attached to the side of the sound insulation cotton 32 away from the calcium acid board 13 by pasting.

[0024] According to the preferred embodiment, the strong and weak waveguide ports 4 include:

[0025] Low-carbon shielding frame 41 is embedded in the bottom of the soundproof wall 3 of the computer room 1, which is located on the side of the nuclear magnetic resonance equipment. The low-carbon shielding frame 41 is located between the antibacterial medical clean panel 14 and the outer wall 33 of the computer room.

[0026] A junction box 42 is embedded in the center of a low-carbon shielding frame 41 by welding, and wire grooves 43 are arranged in the center of the junction box 42.

[0027] A copper waveguide 44 is inserted into a wire groove 43. A corrosion-resistant and insulating flexible gasket 45 is fitted onto the wire groove 43, and the outer side of the corrosion-resistant and insulating flexible gasket 45 is engaged in the wire groove 43.

[0028] According to the preferred embodiment, the length of the low-carbon shielding frame 41 is the same as the distance between the inner side wall of the antibacterial medical clean panel 14 and the outer side wall of the computer room exterior wall 33.

[0029] The magnetic shielding structure for the nuclear magnetic resonance laboratory area proposed in this invention forms a closed electromagnetic environment by means of the machine room, the machine room shielding layer, the machine room soundproof wall and the strong and weak waveguide ports, blocking bidirectional interference from the inside and outside, while also having a sound insulation effect.

[0030] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0031] Figure 1 shows the front view of the computer room in this utility model;

[0032] Figure 2 shows a cross-sectional view of the computer room floor in this utility model;

[0033] Figure 3 shows a cross-sectional view of the computer room wall in this utility model;

[0034] Figure 4 shows an enlarged three-dimensional structural diagram of the strong and weak electric waveguide ports in this utility model;

[0035] Label Explanation

[0036] 1. Computer room;

[0037] 11. Top and bottom keel; 12. Vertical keel; 13. Calcium acid board; 14. Antibacterial medical cleanroom board;

[0038] 2. Shielding layer of the computer room;

[0039] 21. Decorative flooring; 22. Concrete backfill reinforcement layer; 23. No. 1 SBS moisture-proof layer; 24. Copper plate; 25. PVC insulation board; 26. No. 2 SBS moisture-proof layer; 27. Magnetic load-bearing base;

[0040] 3. Soundproof walls for the computer room;

[0041] 31. Flame-retardant wood strips; 32. Sound insulation cotton; 33. Exterior wall of the computer room;

[0042] 4. Strong and weak current waveguide ports;

[0043] 41. Low-carbon shielding frame; 42. Junction box; 43. Cable tray; 44. Copper waveguide; 45. Corrosion-resistant and insulating flexible gasket; Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0045] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components shown in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0046] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0047] This invention proposes a magnetic shielding structure for nuclear magnetic resonance laboratory areas, which can be used in the design and construction process of nuclear magnetic resonance laboratory areas. This invention does not limit the type of nuclear magnetic resonance laboratory area, but the structure of the machine room 1, machine room shielding layer 2, machine room soundproof wall 3 and strong and weak waveguide ports 4 is particularly suitable for the magnetic shielding design of nuclear magnetic resonance laboratory areas.

[0048] Overall, the magnetic shielding structure for the nuclear magnetic resonance laboratory area proposed in this utility model mainly includes: a machine room 1, a machine room shielding layer 2, a machine room soundproof wall 3, and strong and weak electromagnetic waveguide ports 4. As shown in Figures 1-4, the structure and arrangement of the machine room 1, the machine room shielding layer 2, the machine room soundproof wall 3, and the strong and weak electromagnetic waveguide ports 4 are illustrated.

[0049] The magnetic shielding structure for the nuclear magnetic resonance laboratory area proposed in this utility model forms a closed electromagnetic environment by means of the machine room 1, the machine room shielding layer 2, the machine room soundproof wall 3 and the strong and weak waveguide ports 4, blocking bidirectional interference from the inside and outside, while also having a sound insulation effect.

[0050] The aforementioned computer room 1 includes: a top and bottom joists 11, vertical joists 12, calcium acid board 13, and antibacterial medical cleanroom panels 14. The top and bottom joists 11 are located at the top and bottom of the computer room 1, respectively. The vertical joists 12 are arranged at equal intervals around the computer room 1, and their top and bottom are connected to the top and bottom joists 11 by self-tapping bolts. The top and bottom joists 11 and the vertical joists 12 form the frame of the computer room 1. Calcium acid board 13 and antibacterial medical cleanroom panels 14 are installed between adjacent vertical joists 12. The calcium acid board 13 is located on the outside of the computer room 1, and the antibacterial medical cleanroom panels 14 are located on the inside of the computer room 1. The antibacterial medical cleanroom panels 14 serve as the inner panel of the MRI laboratory, and the calcium acid board 13 is a flame-retardant layer to prevent external flames from spreading to the interior of the computer room 1 in the event of a fire.

[0051] The separation between the antibacterial medical clean panel 14 and the calcium acid board 13 provides flame retardancy and sound insulation.

[0052] The aforementioned soundproof wall 3 for the computer room includes: flame-retardant wood strips 31, sound insulation cotton 32, and an outer wall 33. The flame-retardant wood strips 31 are installed between the vertical keels 12 and between the calcium acid board 13 and the antibacterial medical clean panel 14. The flame-retardant wood strips 31 are stacked vertically, and the stacked flame-retardant wood strips 31 interlock with each other on the near side. The upper flame-retardant wood strip 31 is connected to the antibacterial medical clean panel 14 by expansion bolts, and the lower flame-retardant wood strip 31 is connected to the calcium acid board 13 by expansion bolts. The flame-retardant wood strips 31 provide support between the calcium acid board 13 and the antibacterial medical clean panel 14. Sound insulation cotton 32 is pasted on the side of the calcium acid board 13 away from the antibacterial medical clean panel 14, and the outer wall 33 is pasted on the side of the sound insulation cotton 32 away from the calcium acid board 13, thus achieving the effect of sound shielding.

[0053] The aforementioned shielding layer 2 of the computer room is located at the bottom of the computer room 1 and consists of the following layers from top to bottom: decorative floor 21, concrete backfill reinforcement layer 22, first SBS moisture-proof layer 23, copper plate 24, PVC insulation board 25, second SBS moisture-proof layer 26, and magnet load-bearing base 27. The first SBS moisture-proof layer 23 and the second SBS moisture-proof layer 26 can protect the shielding structure from moisture erosion, prevent water from entering the magnet load-bearing base 27, and extend the service life of the structure. The copper plate 24 is used to construct the radio frequency shielding layer, which can effectively reflect and absorb high-frequency electromagnetic waves, such as wireless communication signals and radar waves, and block the leakage or intrusion of electromagnetic radiation. The PVC insulation board 25, through its high resistivity characteristics, blocks the conduction of current or static electricity between equipment, avoiding electromagnetic interference or short circuit risks caused by potential differences. The magnet load-bearing base 27 is an electromagnetic isolation layer, blocking the mutual penetration of internal and external electromagnetic interference. Furthermore, the magnet load-bearing base 27 is the bottom of the entire computer room and is in direct contact with the ground, which can ensure single-point grounding to eliminate potential difference interference.

[0054] The aforementioned strong and weak current waveguide ports 4 are located at the bottom of the soundproof wall 3 of the equipment room 1, near the side of the nuclear magnetic resonance equipment. The strong and weak current waveguide ports 4 include: a low-carbon shielding frame 41, a junction box 42, and a copper waveguide 44. The low-carbon shielding frame 41 is embedded in the bottom of the soundproof wall 3 of the equipment room 1, near the side of the nuclear magnetic resonance equipment. The low-carbon shielding frame 41 is located between the antibacterial medical clean panel 14 and the outer wall 33 of the equipment room. The junction box 42 is welded and embedded in the center of the low-carbon shielding frame 41. A wire groove 43 is arranged in the center of the junction box 42. The copper waveguide 44 passes through the wire groove 43. A corrosion-resistant and insulating flexible gasket 45 is fitted on the wire groove 43. The outer side of the corrosion-resistant and insulating flexible gasket 45 is locked in the wire groove 43. The strong and weak current waveguide ports 4 achieve efficient isolation of the electromagnetic environment inside and outside the shielding room, while meeting the functional requirements of power transmission and signal control.

[0055] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A regional magnetic shielding structure for a nuclear magnetic resonance laboratory, characterized in that, include: The equipment includes a computer room (1), a computer room shielding layer (2), a computer room soundproof wall (3), and strong and weak current waveguide ports (4); the computer room shielding layer (2) is located at the bottom of the computer room (1); the computer room soundproof wall (3) is located around the computer room (1); the strong and weak current waveguide ports (4) are located at the bottom of the computer room soundproof wall (3) on the side of the computer room (1) closest to the nuclear magnetic resonance equipment.

2. The regional magnetic shielding structure for nuclear magnetic resonance laboratories according to claim 1, characterized in that, The computer room (1) includes: a top and bottom keel (11), which are located at the top and bottom of the computer room (1); vertical keels (12), which are arranged at equal intervals around the computer room (1), and the top and bottom of the vertical keels (12) are connected to the top and bottom keels (11) by self-tapping bolts; calcium acid board (13) and antibacterial medical clean plate (14), which are arranged adjacent to each other between the vertical keels (12), with the calcium acid board (13) located outside the computer room (1) and the antibacterial medical clean plate (14) located inside the computer room (1).

3. The regional magnetic shielding structure for nuclear magnetic resonance laboratories according to claim 2, characterized in that, The shielding layer (2) of the computer room includes: a decorative floor (21), which is located at the top of the bottom joists (11) of the computer room (1); a concrete backfill reinforcement layer (22), which is located at the bottom of the decorative floor (21); a No. 1 SBS moisture-proof layer (23), which has two layers, and the two layers of the No. 1 SBS moisture-proof layer (23) are stacked at the bottom of the concrete backfill reinforcement layer (22); and a copper plate (24). The copper plate (24) is disposed at the bottom of the first layer of SBS moisture-proof layer (23); the PVC insulation board (25) is disposed at the bottom of the copper plate (24); the second SBS moisture-proof layer (26) is disposed in two layers, and the two layers of the second SBS moisture-proof layer (26) are stacked at the bottom of the PVC insulation board (25); the magnet bearing base (27) is disposed at the bottom of the second SBS moisture-proof layer (26).

4. The regional magnetic shielding structure for nuclear magnetic resonance laboratories according to claim 3, characterized in that, The soundproof wall (3) of the computer room includes: flame-retardant wood strips (31), which are arranged between vertical keels (12) and between calcium acid board (13) and antibacterial medical clean board (14). The flame-retardant wood strips (31) are stacked vertically and interlocked on the near side. The upper flame-retardant wood strip (31) is connected to the antibacterial medical clean board (14) by expansion bolts, and the lower flame-retardant wood strip (31) is connected to the calcium acid board (13) by expansion bolts; sound insulation cotton (32), which is pasted on the side of the calcium acid board (13) away from the antibacterial medical clean board (14); and computer room exterior wall (33), which is pasted on the side of the sound insulation cotton (32) away from the calcium acid board (13).

5. The regional magnetic shielding structure for nuclear magnetic resonance laboratories according to claim 4, characterized in that, The strong and weak current waveguide (4) includes: a low-carbon shielding frame (41), which is embedded in the bottom of the soundproof wall (3) of the machine room (1) near the nuclear magnetic resonance equipment, and the low-carbon shielding frame (41) is located between the antibacterial medical clean panel (14) and the outer wall (33) of the machine room; a wiring box (42), which is embedded in the center of the low-carbon shielding frame (41) by welding, and a wire groove (43) is arranged in the center of the wiring box (42); a copper waveguide (44), which is inserted into the wire groove (43), and a corrosion-resistant and insulating flexible gasket (45) is fitted on the wire groove (43), and the outer side of the corrosion-resistant and insulating flexible gasket (45) is clamped in the wire groove (43).

6. The regional magnetic shielding structure for nuclear magnetic resonance laboratories according to claim 5, characterized in that, The length of the low-carbon shielding frame (41) is the same as the distance between the inner wall of the antibacterial medical clean panel (14) and the outer wall of the machine room (33).

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