A CT room enclosure

Abstract

The utility model relates to a CT room enclosure structure, its structure includes roof and wallboard, roof and wallboard all are by a plurality of board body unit weld together, and the roof edge is welded with adjacent wallboard top, and the wallboard bottom end is fixed with ground, and the board body unit is symmetrical multilayer structure, and the lead plate, rock wool sandwich, glass magnesium board and stainless steel plate from center to both sides are in proper order, and the lead plate of board body unit edge is protruding and is clamped through a pair of stainless steel square pipe fixed by bolt. The utility model has the advantages of reasonable structure design, and the lead plate of radiation protection is laid in the board body in advance, and the modularization design, standardization and prefabricated production can be realized, the error can be effectively reduced, and the resources can be saved. When the specific construction, need only welding, can effectively improve the construction efficiency and simplify the construction. The final product is not damaged, can effectively protect the integrity of lead plate, effectively control room radioactivity, ensure the air tightness of biological safety enclosure structure.

Description

Technical Field

[0001] This utility model relates to a CT room enclosure structure, specifically a prefabricated CT room installation enclosure structure for a high-level biosafety laboratory. Background Technology

[0002] For the construction of radiation protection environments (CT rooms) in high-level biosafety laboratories, during the installation of CT rooms, it is necessary to consider not only the airtightness and structural strength of the laboratory enclosure, but also the inability of the radiation emitted by the CT machine to penetrate the enclosure structure, so as to protect the safety of external personnel and prevent the leakage of high-risk pathogens. Reliable protection is the guarantee for the normal operation of the entire laboratory.

[0003] In existing technologies, the construction of CT rooms in biosafety laboratories and the installation of radiation-shielding lead plates mainly take two forms:

[0004] 1) During the installation of the enclosure structure, the radiation-proof lead plate is fixed to the keel with steel nails, and then stainless steel panels are welded and installed to achieve the purpose of radiation protection.

[0005] 2) After the enclosure structure is installed, the radiation shielding lead plate is applied to the stainless steel plate with all-purpose adhesive to achieve the purpose of radiation protection.

[0006] The existing technology described above has the following drawbacks:

[0007] (1) The lead plate needs to be cut into small pieces for installation, which is cumbersome;

[0008] (2) The process involves many steps, has a long installation period, and has high construction costs;

[0009] (3) The connection with the ground is difficult to handle and prone to leakage;

[0010] (4) Due to manual labor, the surface smoothness is not easy to control, and the quality is relatively rough;

[0011] (5) Lead plates have a low melting point, and welding stainless steel panels can easily damage the structure of the lead plates. Utility Model Content

[0012] This utility model proposes a CT room enclosure structure, which aims to overcome the above-mentioned shortcomings of the existing technology, improve construction efficiency and reduce costs while ensuring the airtightness, structural strength and penetration resistance of the enclosure structure.

[0013] The technical solution of this utility model is a CT room enclosure structure, which includes a roof panel and wall panels. Both the roof panel and wall panels are welded together from several panel units. The edge of the roof panel is welded to the top of the adjacent wall panel, and the bottom of the wall panel is fixed to the ground. The panel unit has a symmetrical multi-layer structure, consisting of a lead plate, rock wool core, magnesium oxide board, and stainless steel plate arranged sequentially from the center to both sides. The lead plate at the edge of the panel unit protrudes and is held in place by a pair of stainless steel square tubes fixed with bolts. Pre-laying the radiation-shielding lead plate within the panel allows for modular design, standardization, and prefabrication, reducing errors and saving resources. During construction, no cutting is required; only welding is necessary, effectively improving construction efficiency and simplifying the construction process.

[0014] Preferably, a plurality of pairs of stainless steel square tubes, fixed with bolts and clamped to both sides of the lead plate, are provided at intervals along the length of the plate unit. This can improve the overall structural strength.

[0015] Preferably, the lead plates at the edges of adjacent plate units of the top plate overlap, and secondary lead plates are welded to the outer sides of adjacent stainless steel square tubes as a whole. Secondary lead plates are also welded to the outer sides of the stainless steel square tubes in the middle of the plate unit. This ensures that the room's radiation protection effect is effective from all angles.

[0016] Preferably, an arc-shaped secondary stainless steel plate is welded to the bottom surface of the stainless steel square tube at the edge of the top plate and the side surface of the stainless steel square tube at the top corner of the adjacent wall panel. A secondary lead plate, at a right angle, is welded to the top surface of the stainless steel square tube at the edge of the top plate and the protruding lead plate at the top of the adjacent wall panel. This secondary lead plate is then covered with a secondary stainless steel plate. This further ensures that the room's radiation protection effect is comprehensive and without blind spots.

[0017] Preferably, the ground has a multi-layer structure, consisting of a fine aggregate concrete cushion layer, a barium sulfate cement cushion layer, and a floor slab from top to bottom. Stainless steel embedded joists are correspondingly installed below the stainless steel square tubes at the bottom of the wall panel units. These embedded joists are located within wall tracks excavated on the barium sulfate cement cushion layer and floor slab above the fine aggregate concrete cushion layer. The top surface of the embedded joists is welded to the corresponding stainless steel square tube ground surface. The embedded joists are filled with barium sulfate cement. Arc-shaped secondary stainless steel plates are welded to the top surface of the ground on both sides of the stainless steel square tube. Epoxy resin mortar is installed in the gap between the embedded joists and the wall tracks on the inner side of these secondary stainless steel plates.

[0018] The advantages of this invention are: A reasonable structural design, with radiation-shielding lead plates pre-laid within the panel, enabling modular design, standardization, and prefabrication, effectively reducing errors and saving resources. During construction, no cutting is required; only welding is needed, significantly improving construction efficiency and simplifying the process. The final product is undamaged, effectively protecting the integrity of the lead plates, effectively controlling room radiation, and ensuring the airtightness of the biosafety enclosure structure. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the connection structure between the wall panel and the roof panel in the enclosure structure of the CT room of this utility model.

[0020] Figure 2 This is a schematic diagram of the connection node structure between the top plate units in the enclosure structure of the CT room of this utility model.

[0021] Figure 3 This is a schematic diagram of the wall panel and ground installation node structure in the enclosure structure of the CT room of this utility model.

[0022] In the diagram, 1 is the roof slab, 101 is the stainless steel plate, 102 is the magnesium oxide board, 103 is the rock wool sandwich panel, 104 is the lead plate, 105 is the stainless steel square tube, 106 is the bolt, 2 is the wall panel, 3 is the floor, 301 is the floor slab, 302 is the barium sulfate cement bedding layer, 303 is the fine stone concrete bedding layer, 304 is the stainless steel buried keel, 305 is the barium sulfate cement filler, 306 is the epoxy resin mortar, 4 is the secondary stainless steel plate, and 5 is the secondary lead plate. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.

[0024] like Figure 1 As shown, a CT room enclosure structure includes a top plate 1 and wall panels 2. Both the top plate 1 and wall panels 2 are welded together from several plate units. The edge of the top plate 1 is welded to the top of the adjacent wall panel 2, and the bottom of the wall panel 2 is fixed to the ground 3. The plate unit is a symmetrical multi-layer structure, consisting of a lead plate 104, a rock wool core 103, a magnesium oxide board 102, and a stainless steel plate 101, arranged sequentially from the center to both sides. The lead plate 104 protrudes from the edge of the plate unit and is clamped by a pair of stainless steel square tubes 105 fixed by bolts 106. Several pairs of stainless steel square tubes 105 fixed by bolts 106 are also spaced along the length of the plate unit and clamped on both sides of the lead plate 104.

[0025] Based on the above structure, the main structural feature of the CT room enclosure is that it is assembled from panel units. Stainless steel square tubes 105 form the skeleton of the panel unit, which is welded to stainless steel plates 101 and lead plates 104 (preferably 3mm thick). Together with rock wool core 103 and magnesium oxide board 102, they form the panel unit. During transportation, the lead plates 104 protruding from the stainless steel square tubes 105 are protected by wooden clamps, and the entire outer surface is covered with a waterproof membrane.

[0026] like Figure 2As shown, during the installation of the top panel 1, the panel unit is connected to the external suspension system at the top. The lead plates 104 at the edges of adjacent panel units of the top panel 1 overlap, and the outer sides of adjacent stainless steel square tubes 105 are welded with auxiliary lead plates 5 (preferably 3mm thick). Auxiliary lead plates 5 are also welded to the outer sides of the stainless steel square tubes 105 in the middle of the panel unit. This ensures that there are no blind spots in the room's radiation protection effect. Since the panel unit itself is relatively heavy, a suction cup cart can be used for support during installation. The connection principle between adjacent panel units of the wall panel 2 is similar.

[0027] like Figure 1 As shown, during the installation of the top plate 1 and wall panel 2, an arc-shaped secondary stainless steel plate 4 is welded to the bottom surface of the stainless steel square tube 105 at the edge of the top plate 1 and the side surface of the stainless steel square tube 105 at the top corner of the adjacent wall panel 2. A secondary lead plate 5, forming a right angle, is welded to the top surface of the stainless steel square tube 105 at the edge of the top plate 1 and the protruding lead plate 104 at the top of the adjacent wall panel 2. The outer side of this secondary lead plate 5 is covered with the secondary stainless steel plate 4. This further ensures that the room's radiation protection effect is comprehensive.

[0028] like Figure 3 As shown, when the wall panel 2 is installed on the ground, the ground 3 has a multi-layer structure, consisting of a fine stone concrete cushion layer 303, a barium sulfate cement cushion layer 302, and a floor slab 301 from top to bottom. A stainless steel buried keel 304 is correspondingly installed below the stainless steel square tube 105 at the bottom of the panel unit of the wall panel 2. The stainless steel buried keel 304 is located in the wall rail excavated on the barium sulfate cement cushion layer 302 and the floor slab 301 above the fine stone concrete cushion layer 303. The top surface of the stainless steel buried keel 304 is welded to the ground corresponding to the stainless steel square tube 105. The stainless steel buried keel 304 is filled with barium sulfate cement 305. Arc-shaped secondary stainless steel plates 4 are welded to the top surface of the ground 3 on both sides of the stainless steel square tube 105. Epoxy resin mortar 306 is installed in the gap between the stainless steel buried keel 304 and the wall rail inside the secondary stainless steel plate 4.

[0029] This utility model's structure can be fully applied to high-level biosafety laboratory projects. Room airtightness testing was conducted according to GB19489-2008 "General Requirements for Laboratory Biosafety." Section 6.4.8 of this standard stipulates that the airtightness of the laboratory protective area enclosure structure should meet the following requirements: with all passageways in the tested room closed and the room temperature maintained at the upper limit of the design range, when the air pressure in the room rises to 500 Pa, the naturally decaying pressure should be less than 250 Pa within 20 minutes. After multiple tests, on-site measurements showed that when the air pressure in the room rises to 500 Pa, the naturally decaying pressure is less than 400 Pa within 20 minutes and less than 280 Pa within 90 minutes, fully meeting the room airtightness testing requirements.

[0030] In actual construction, modular design and prefabrication can be carried out in the factory first. Specifically, the specific skeleton structure is customized by combining 3D modeling. This can be achieved with existing technology, with small errors, modular coordination, and resource saving. It can be combined with fully mechanized installation, with no cutting operations. During splicing, robots can automatically weld to achieve clear, bright, uniform textures, no obvious color difference, and good aesthetics. The finished product is undamaged, which can protect the integrity of the lead plate and effectively control the room's radiation.

[0031] All of the components described above are existing technologies, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A CT room enclosure structure, characterized in that, It includes a top plate (1) and a wall plate (2). Both the top plate (1) and the wall plate (2) are welded together from several plate units. The edge of the top plate (1) is welded to the top of the adjacent wall plate (2). The bottom of the wall plate (2) is fixed to the ground (3). The plate unit is a symmetrical multi-layer structure. From the center to both sides, it consists of a lead plate (104), a rock wool core (103), a magnesium oxide board (102), and a stainless steel plate (101). The lead plate (104) at the edge of the plate unit protrudes and is clamped by a pair of stainless steel square tubes (105) fixed by bolts (106).

2. The enclosure structure of a CT room as described in claim 1, characterized in that, Along the length of the plate unit, there are several pairs of stainless steel square tubes (105) that are clamped on both sides of the lead plate (104) and fixed by bolts (106).

3. The enclosure structure of a CT room as described in claim 1, characterized in that, The lead plates (104) at the edges of adjacent plate units of the top plate (1) overlap, and the outer side of the adjacent stainless steel square tube (105) is welded with a secondary lead plate (5), and the outer side of the stainless steel square tube (105) in the middle of the plate unit is also welded with a secondary lead plate (5).

4. The enclosure structure of a CT room as described in claim 1, characterized in that, The bottom surface of the stainless steel square tube (105) at the edge of the top plate (1) is welded to the side of the stainless steel square tube (105) at the top corner of the adjacent wall plate (2) to form an arc-shaped secondary stainless steel plate (4). The top surface of the stainless steel square tube (105) at the edge of the top plate (1) is welded to the lead plate (104) protruding from the top of the adjacent wall plate (2) to form a right-angle secondary lead plate (5). The outer side of the secondary lead plate (5) is covered with the secondary stainless steel plate (4).

5. The enclosure structure of a CT room as described in claim 1, characterized in that, The ground (3) is a multi-layer structure, consisting of a fine stone concrete cushion layer (303), a barium sulfate cement cushion layer (302), and a floor slab (301) from top to bottom. Stainless steel buried keel (304) is provided below the bottom stainless steel square tube (105) of the bottom plate unit of the wall panel (2). The stainless steel buried keel (304) is located in the wall rail excavated on the barium sulfate cement cushion layer (302) and the floor slab (301) above the fine stone concrete cushion layer (303). The top surface of the stainless steel buried keel (304) is welded to the ground of the corresponding stainless steel square tube (105). The stainless steel buried keel (304) is filled with barium sulfate cement (305). The stainless steel square tube (105) is welded to the top surface of the ground (3) on both sides. Epoxy resin mortar (306) is provided in the gap between the stainless steel buried keel (304) and the wall rail on the inner side of the stainless steel plate (4).

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