Box structure of marine medical area cleaning air conditioner

Abstract

The invention relates to a marine medical area cleaning air conditioner box structure which adopts a modular three-layer framework and comprises a panel assembly, a rack component and a decorative cover plate. The panel assembly is detachably connected to the outer side of the rack component, and the decorative cover plate covers the connecting portion of the panel assembly and the rack component. The panel assembly is of a four-layer composite structure and is filled with heat preservation materials, the rack component is composed of stainless steel cross beams, longitudinal beams, stand columns, a middle support and corner sealing plates, the heat preservation materials are attached to the outer surface of the rack component, and a multi-sealing structure is arranged between the panel assembly and the rack component. The problems that a box body of a traditional air conditioner for the ship is insufficient in sealing, bacteria are prone to breeding, and the cold bridge effect is caused are solved, and the requirements for low leakage rate and high cleanliness of a clean air conditioner in a medical area are met.

Description

Technical Field

[0001] This invention relates to the field of marine air conditioning equipment technology, specifically to a clean air conditioner housing structure suitable for marine medical areas, particularly suitable for air handling scenarios in medical areas with stringent requirements for sealing, cleanliness, cold bridge prevention, and resistance to marine environments. Background Technology

[0002] Marine air conditioner enclosures are generally of a suction-type assembly structure. However, this structure, when applied to cleanroom air conditioners, suffers from three key drawbacks: First, insufficient sealing, leading to air leaks at the joints between components and making it difficult to meet the requirements of pressure-type operation; second, the presence of 90° dead angles in the enclosure frame, which easily accumulate dust and breed bacteria; and third, insufficient consideration of the thermal bridging effect, resulting in condensation on the enclosure surface. Especially in shipboard medical areas with stringent air cleanliness requirements, the existing negative-pressure structure of marine air conditioners struggles to meet the design requirements of a smooth, corner-free interior, high sealing, and antibacterial structure.

[0003] Existing related technologies, such as the combined air conditioner assembly structure in patent document (CN206637814U), only pursue simplified assembly and do not consider the vibration of ships and the cleanliness requirements of medical facilities. The right-angle dead corners of the frame are prone to dust accumulation and have poor sealing performance, making them completely unsuitable for marine medical areas. Although the marine anti-cold bridge structure in patent document (CN222123457U) solves the cold bridge problem, the frame still has right-angle dead corners, the seal relies on only a single sealing strip, resulting in a high leakage rate, and there is no maintenance design, making it easy to damage the seal during maintenance, thus failing to meet the requirements of medical areas.

[0004] Therefore, there is an urgent need to design a housing structure for a clean air conditioner for a ship's medical area that takes into account high sealing, high cleanliness, cold bridge prevention, and resistance to the marine environment. Summary of the Invention

[0005] To address the requirements of high sealing and high cleanliness for clean air conditioner enclosures in marine medical areas, this invention proposes a new enclosure structure for marine medical areas. This structure solves problems such as insufficient sealing, easy bacterial growth, and cold bridging effects in traditional marine air conditioner enclosures, thus meeting the requirements of low leakage rate and high cleanliness for clean air conditioners in medical areas.

[0006] To achieve the above objectives, the technical solution of the present invention is: a clean air conditioner housing structure for a marine medical area, adopting a modular three-layer architecture, including a panel assembly, a frame component, and a decorative cover; the panel assembly is detachably connected to the outside of the frame component, and the decorative cover covers the connection between the panel assembly and the frame component; the panel assembly is a four-layer composite structure and is filled with thermal insulation material; the frame component is composed of stainless steel crossbeams, longitudinal beams, columns, central supports, and corner sealing plates, and its outer surface is covered with thermal insulation material; and a multi-layer sealing structure is provided between the panel assembly and the frame component.

[0007] Furthermore, the four-layer composite structure of the panel assembly includes: an outer layer of 1mm thick Q235-B cold-rolled steel sheet, an inner layer of 0.8mm thick 022Cr17Ni12Mo2 stainless steel sheet, a middle layer of 1.5mm thick Q235-B cold-rolled steel sheet forming an inner frame, and a C-shaped panel mounting angle iron formed by folding 1.5mm thick Q235-B cold-rolled steel sheet attached to the outside of the inner frame; the outer plate, inner plate and inner frame enclose a sealed space, and the sealed space is filled with 50mm thick polyurethane foam.

[0008] Furthermore, the inner frame of the panel assembly has Φ10 mounting holes on its side, and M6 nuts are pressed into the mounting holes; the outer mounting angle iron of the panel is tightened and fixed to the outer panel, inner panel and inner frame by M6×16 bolts and M6 nuts; the inner panel has foaming holes, and after polyurethane foam is filled through the foaming holes, the foaming holes are sealed by welding with stainless steel cover plates.

[0009] Furthermore, small inspection doors are provided on the outer panel and the inner panel. The edges of the small inspection doors are attached with silicone sealing strips. The small inspection doors are detachably connected to the inner panel and the outer panel of the panel assembly by M6×16 bolts.

[0010] Furthermore, the stainless steel crossbeams and longitudinal beams, longitudinal beams and columns, and crossbeams and columns in the frame components are welded in pairs, and all welded joints form an obtuse angle transition structure; the corner triangular areas enclosed by the crossbeams, longitudinal beams, and columns are fully welded with the corner sealing plates; the central brace is welded between the crossbeams, and the outer surfaces of the crossbeams, longitudinal beams, columns, and central brace are all covered with 18mm thick rubber and plastic insulation material.

[0011] Furthermore, the stainless steel crossbeams, longitudinal beams, columns, central braces, and corner sealing plates are all made of 2mm thick 022Cr17Ni12Mo2 stainless steel.

[0012] Furthermore, the decorative cover plate includes a crossbeam decorative cover plate, a longitudinal beam decorative cover plate, a column decorative cover plate, and a central support decorative cover plate, all of which are formed by folding 2mm thick Q235-B cold-rolled steel plates.

[0013] Furthermore, the decorative cover is detachably connected to the panel mounting angle iron of the panel assembly via ST3.5×9.5 self-tapping screws.

[0014] Furthermore, the multi-seal structure includes: a silicone gasket applied to the contact surface between the panel assembly and the frame component; an M5×16 bolt that penetrates the outside of the panel to install the angle iron and the frame component; and rubber and plastic insulation cotton filling the gaps on the outer surface of the frame component; M5 nuts are back-welded to the crossbeams, longitudinal beams, columns, and central supports of the frame component, and the M5×16 bolts and M5 nuts cooperate to fasten the panel assembly and the frame component.

[0015] Furthermore, during the final assembly of the air conditioner housing, the multi-seal structure adopts a multi-seal reinforcement process. First, silicone sealing gaskets are applied to the joints of the panel components; then, M5×16 bolts are used to fasten them to the back-welded nuts of the frame components; subsequently, rubber and plastic insulation material is filled into the gaps on the outer surface of the frame components; finally, a decorative cover is installed to make the air conditioner housing look aesthetically pleasing.

[0016] The beneficial effects of this invention are as follows:

[0017] (1) By welding the frame components as a whole and setting small inspection doors on the panel components, and combining the assembly process of the panel components and the frame components, the sealing performance of the clean air conditioner cabinet is improved, ensuring the overall strength of the cabinet while also meeting the requirement of low leakage rate. Figure 1 When the static pressure inside the air conditioner is 1000Pa, the leakage rate is less than 1%.

[0018] (2) Through the fully obtuse angle welding structure inside the frame components and the stainless steel inner wall design, the interior of the clean air conditioner cabinet is smooth and free of dead corners, inhibiting bacterial growth. Figure 2 )

[0019] (3) By using polyurethane foam for the panel assembly and rubber and plastic insulation filling for the frame components, the cold bridge problem of the clean air conditioner cabinet can be effectively prevented and the overall strength can be increased.

[0020] (4) The overall aesthetics of the clean air conditioner unit are enhanced by the decorative cover.

[0021] (5) Through actual ship verification, the structure of the clean air conditioner box can meet the environmental conditions such as ship impact, vibration, and turbulence. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the marine medical area clean air conditioner housing of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the frame components; Figure 3 This is a schematic diagram of the panel assembly steps;

[0024] Figure 4 This is a schematic diagram of the welding of the frame components;

[0025] Figure 5 This is a schematic diagram of the assembly steps for the external insulation and decorative cover plate of the frame components (excluding the central support);

[0026] Figure 6 This is a schematic diagram of the assembly steps for the external insulation and decorative cover plate of the frame components (including the central support). Detailed Implementation

[0027] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 6 As shown, the present invention discloses a marine medical area clean air conditioner housing structure, which adopts a modular three-layer architecture design, consisting of a panel assembly 1, a frame component 2, and a decorative cover plate 3. The panel assembly 1 is detachably connected to the outside of the frame component 2, and the decorative cover plate 2 covers the connection between the panel assembly 1 and the frame component 2; the frame component 2 is a stainless steel structure with all obtuse angle welds and the outer surface is covered with thermal insulation material; a multi-layer sealing structure is provided between the panel assembly 1 and the frame component 2; and the panel assembly 1 is provided with a small inspection door 4.

[0029] Panel assembly 1 enhances its strength through a four-layer composite structure. The outer layer is a 1mm thick Q235-B cold-rolled steel sheet (outer panel 1.1); the inner layer is a 0.8mm thick 022Cr17Ni12Mo2 stainless steel sheet (inner panel 1.2); the middle layer is a 1.5mm thick Q235-B cold-rolled steel sheet welded together to form an inner frame 1.3. The outer panel 1.1, inner panel 1.2, and inner frame 1.3 form a sealed space, which is further reinforced by a C-shaped 1.5mm thick Q235-B cold-rolled steel sheet, i.e., angle irons are installed on the outside of the panel to press the inner panel 1.2, outer panel 1.1, and inner frame 1.3 together. The entire interior is filled with 50mm thick polyurethane foam 1.4.

[0030] Frame component 2 consists of 2mm thick 022Cr17Ni12Mo2 stainless steel crossbeams, longitudinal beams, uprights, central supports, and corner sealing plates. First, the crossbeams, longitudinal beams, and uprights are welded together in pairs to create obtuse angle transitions at all connections. Then, corner sealing plates are welded to the triangular corner areas for sealing, and central supports are welded as needed. This completely eliminates the unsanitary corners caused by traditional right angles, ensuring all internal surfaces are smooth and free of dead angles, thus blocking the environment for bacterial growth at its source. Finally, 18mm thick rubber-plastic insulation material is applied to the outer surfaces of the crossbeams, longitudinal beams, uprights, and central supports, providing excellent insulation for the frame component.

[0031] The decorative cover plate includes four types of special components: crossbeam decorative cover plate, longitudinal beam decorative cover plate, column decorative cover plate, and central support decorative cover plate. All of them are made of 2mm thick Q235-B cold-rolled steel plate with folded edges, and then connected to the outer angle iron of the panel.

[0032] The air conditioner casing employs a multi-layered sealing reinforcement process during assembly. First, silicone sealing gaskets are applied to the joints of the panel components. Then, M5×16 bolts are used to secure them to the frame components with back-welded nuts. Subsequently, rubber and plastic insulation material is filled into the gaps on the outer surface of the frame components, simultaneously addressing the cold bridge effect and secondary sealing issues. Finally, a decorative cover is installed to enhance the overall aesthetics of the air conditioner casing. A small access door is specially designed for the panel components, balancing ease of maintenance with overall sealing.

[0033] The manufacturing and assembly processes for each component and part are as follows:

[0034] I. Panel Component Assembly

[0035] After bending, the outer panel 1.1, inner panel 1.2, and inner frame 1.3 are welded together. Simultaneously, an M6 press-fit nut 1.5 is installed at the Φ10 opening on the side of the inner frame 1.3. The outer panel 1.1, inner panel 1.2, and inner frame 1.3 are interlocked, and then M6x16 bolts 1.6 are used to pass through the outer panel and install angle iron 1.7, which is then fixed to the inner frame with the M6 ​​press-fit nut 1.5. Figure 3 (Steps S1 to S4). Finally, polyurethane foam is applied to the entire inner cavity through the opening in the inner panel, and the opening is then welded and sealed after foaming. After the panel assembly 1 is foamed as a whole, an opening is made according to the standard size of the access door. The access door 4 is fixed to the inner panel 1.2 and the outer panel 1.1 with bolts.

[0036] II. Welding of frame components ( Figure 4 (a), (b), (c), (d)

[0037] The frame crossbeams, longitudinal beams, and columns are welded together in pairs. After welding, a triangular gap will be left at the corner. The triangular area is then fully welded closed using frame corner sealing plates to ensure an obtuse angle transition, completing the all-stainless steel obtuse angle flow channel structure. Finally, according to structural strength and maintainability requirements, a central brace is welded onto the crossbeam, and M5 nuts are back-welded to the central brace, crossbeam, and column to secure the panel assembly.

[0038] III. Container Assembly ( Figure 5 and Figure 6 Steps S1 to S4)

[0039] Before installing panel assembly 1, install angle irons and apply silicone sealing gaskets to the outside of the panel. Panel assembly 1 is connected to frame components 2 (i.e., central support, crossbeam, and column) using M5 back-welding nuts 2.1 with M5X16 bolts 1.8. After all installations are completed, fill the gaps with rubber and plastic insulation cotton 2.2 to further increase the airtightness of the cleanroom enclosure and prevent cold bridging of the frame components. After the entire enclosure is insulated, according to the opening positions on the decorative cover 3, connect the decorative cover 3 to the angle irons mounted on the outside of the panel assembly 1 using ST3.5X9.5 self-tapping screws 3.1 to achieve an aesthetically pleasing result.

[0040] In summary, through the above specific embodiments, the present invention achieves the core requirements of "high sealing, high cleanliness, cold bridge prevention, resistance to marine environment, and easy maintenance" for the clean air conditioning unit housing in marine medical areas, and all performance indicators meet the dual requirements of medical areas and marine operating conditions.

Claims

1. A housing structure for a clean air conditioner in a marine medical area, characterized in that: The system adopts a modular three-layer architecture, including a panel assembly, a rack component, and a decorative cover. The panel assembly is detachably connected to the outside of the rack component, and the decorative cover covers the connection between the panel assembly and the rack component. The panel assembly is a four-layer composite structure filled with thermal insulation material. The rack component consists of stainless steel crossbeams, longitudinal beams, columns, central supports, and corner sealing plates, and its outer surface is covered with thermal insulation material. The panel assembly and the rack component are provided with multiple sealing structures.

2. The structure of the clean air conditioner housing for marine medical areas according to claim 1, characterized in that: The four-layer composite structure of the panel assembly includes: an outer layer of 1mm thick Q235-B cold-rolled steel sheet, an inner layer of 0.8mm thick 022Cr17Ni12Mo2 stainless steel sheet, a middle layer of 1.5mm thick Q235-B cold-rolled steel sheet forming an inner frame, and a C-shaped panel mounting angle iron formed by folding 1.5mm thick Q235-B cold-rolled steel sheet attached to the outside of the inner frame; the outer sheet, inner sheet and inner frame enclose a sealed space, and the sealed space is filled with 50mm thick polyurethane foam.

3. The structure of the clean air conditioner housing for marine medical areas according to claim 2, characterized in that: The inner frame of the panel assembly has Φ10 mounting holes on its side, and M6 nuts are pressed into the mounting holes; the outer mounting angle iron of the panel is pressed and fixed to the outer panel, inner panel and inner frame by M6×16 bolts and M6 nuts; the inner panel has foaming holes, and after polyurethane foam is filled through the foaming holes, the foaming holes are sealed by welding with stainless steel cover plates.

4. The structure of the clean air conditioner housing for marine medical areas according to claim 3, characterized in that: Small inspection doors are provided on the outer panel and the inner panel. The edges of the small inspection doors are attached with silicone sealing strips. The small inspection doors are detachably connected to the inner panel and the outer panel of the panel assembly by M6×16 bolts.

5. The structure of the clean air conditioner housing for marine medical areas according to claim 1, characterized in that: The stainless steel crossbeams and longitudinal beams, longitudinal beams and columns, and crossbeams and columns in the frame components are welded in pairs, and all welded joints form an obtuse angle transition structure; the corner triangular areas enclosed by the crossbeams, longitudinal beams, and columns are fully welded with corner sealing plates; the central brace is welded between the crossbeams, and the outer surfaces of the crossbeams, longitudinal beams, columns, and central brace are all covered with 18mm thick rubber and plastic insulation material.

6. The structure of the clean air conditioner housing for marine medical areas according to claim 1, characterized in that: The stainless steel beams, longitudinal beams, columns, central braces, and corner sealing plates are all made of 2mm thick 022Cr17Ni12Mo2 stainless steel.

7. The structure of the clean air conditioner housing for marine medical areas according to claim 1, characterized in that: The decorative cover plates include crossbeam decorative cover plates, longitudinal beam decorative cover plates, column decorative cover plates, and central support decorative cover plates, all of which are formed by folding 2mm thick Q235-B cold-rolled steel plates.

8. The structure of the clean air conditioner housing for marine medical areas according to claim 7, characterized in that: The decorative cover plate is detachably connected to the outer mounting angle iron of the panel assembly via ST3.5×9.5 self-tapping screws.

9. The structure of the clean air conditioner housing for marine medical areas according to claim 1, characterized in that: The multiple sealing structure includes: a silicone sealing gasket applied to the contact surface between the panel assembly and the frame component; M5×16 bolts that penetrate the outside of the panel to install angle irons and the frame component; and rubber and plastic insulation cotton filling the gaps on the outer surface of the frame component; M5 nuts are back-welded to the crossbeams, longitudinal beams, columns, and central supports of the frame component; and the M5×16 bolts and M5 nuts cooperate to fasten the panel assembly and the frame component.

10. The structure of the clean air conditioner housing for a marine medical area according to claim 9, characterized in that: During the final assembly of the air conditioner housing, the multi-seal structure adopts a multi-seal reinforcement process. First, silicone sealing gaskets are applied to the joints of the panel components; then, M5×16 bolts are used to fasten them to the back-welded nuts of the frame components. Then, rubber and plastic insulation material is filled into the gaps on the outer surface of the frame components, and finally, a decorative cover is installed to make the air conditioner unit look beautiful overall.

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