Exterior wall system for refrigeration and freezing facilities

Abstract

To provide an exterior wall system for a freezing and refrigerating facility, which has high heat insulating performance, moisture-proof performance, and waterproof performance around vertical joints and horizontal joints of an exterior wall of a freezing facility.SOLUTION: A hat-shaped steel 8a for binding is attached to each of a front surface and a back surface of a vertical joint 3a of heat insulating panels 2 adjacent in a left-right direction. The hat-shaped steels 8a for binding on the front surface and the back surface are bound together by a binding bolt 21. A gap of the vertical joint 3a formed by the adjacent heat insulating panels 2 is filled with a heat insulating material 4b between vertical joints.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an exterior wall system for a freezing and refrigeration facility, and in particular to an exterior wall system around vertical and horizontal joints using heat-insulating panels with heat-insulating performance and moisture-proof and waterproof performance. The present invention is mainly applied to freezing and refrigeration facilities that are controlled at low temperatures, such as freezer warehouses and refrigerated warehouses. [Background technology]

[0002] Conventionally, the exterior wall insulation system for freezing and refrigeration facilities has used a concrete framework or spancrete as a base, and insulation performance has been ensured by attaching or spraying an insulation material onto the surface.

[0003] Patent Document 1 discloses a construction method in which panels in which at least one side of a foamed resin layer is covered with a surface material are used as insulation for refrigerators and freezers, and these panels are arranged side by side and attached to a support material to integrate them, which can be constructed only from the inside and allows easy adjustment of the panel positions and replacement of damaged panels. This method describes a method in which panels with a foamed resin layer exposed from their end faces are arranged so that their end faces face each other at a distance in front of the panel support material, forming a gap between adjacent panels, and a joint plate such as a hat-shaped steel is placed on the front of the panels, and this joint plate is connected to the panel support material by a detachable connecting means to clamp the ends of the adjacent panels, and then a foamed resin is injected into the gap closed by the panel support material and the joint plate.

[0004] Patent Document 2 discloses a panel assembly for a freezer and a panel for a refrigerated warehouse that can be joined regardless of which panel end faces each other when assembling the panels. It states that a part of a connecting member can be fitted into the joint groove, so that two panels can be joined adjacent to each other by bringing the ends of the panels adjacent to each other and fitting connecting members into both of the opposing joint grooves. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 10-88684 [Patent Document 2] JP 2005-155071 A Summary of the Invention [Problem to be solved by the invention]

[0006] The above-mentioned conventional insulation method for the exterior walls of freezing and refrigeration facilities has problems such as the need for a large amount of on-site construction work because of the use of exterior wall concrete frameworks and spancrete, which increases the labor of on-site construction workers. In addition, the weight of the building increases, which increases the structural burden on the entire building.

[0007] In recent years, there has been an increase in the use of insulation systems using vertical insulation panels that do not use concrete or spancrete bases for the exterior walls of freezing and refrigeration facilities, which require high levels of insulation and moisture and water resistance. In this insulation system, vertical insulation panels without bases such as furring strips do not have enough strength against wind pressure and earthquake forces, so exterior materials are required on the exterior side of the insulation layer to protect it, which increases the load, structural burden, and cost burden. Therefore, there was a need to improve the strength of the exterior wall insulation and eliminate the exterior materials as a protective layer on the exterior side.

[0008] The exterior walls of freezing and refrigeration facilities, which require high levels of insulation and moisture and water resistance, are required to maintain the temperature difference between indoors and outdoors. Meanwhile, as freezing and refrigeration facilities become larger, the support materials for the insulation panels also tend to become heavier. However, support materials that use steel with inferior insulation performance pose a risk of condensation at the insulation panel joints, especially in the insulation material penetration parts of the support material used in the panel joints. The development of an exterior wall joint system for freezing and refrigeration facilities with improved insulation performance is an issue.

[0009] Additionally, a challenge for the exterior wall systems of freezing and refrigeration facilities is to improve the construction accuracy of the joints of the insulation panels and achieve details that minimize gaps in the joints of the insulation panels caused by construction errors.

[0010] Furthermore, the exterior wall system for freezing and refrigeration facilities requires simple details around the joints and ease of construction.

[0011] The object of this application is to solve such problems and provide an exterior wall system for a freezing and refrigeration facility that has high levels of insulation performance and moisture-proofing and waterproofing performance around the vertical joints and horizontal joints of the exterior walls of the freezing and refrigeration facility. [Means for solving the problem]

[0012] In order to achieve the above object, the exterior wall system for a freezing and refrigeration facility according to the present invention is characterized in that fastening hat steels are attached to the front and back surfaces of vertical joints of horizontally adjacent insulation panels, and the fastening hat steels on the front and back surfaces are fastened together by fastening bolts. Also, the system is characterized in that a vertical joint insulation material is filled in a gap surrounded by the fastening hat steels on the front and back surfaces and the horizontally adjacent insulation panels.

[0013] With the above configuration, the exterior wall system of a freezing and refrigeration facility is provided with fastening hat steels attached to the front and back of the insulation panels in the vertical joints of the insulation panels adjacent to each other in the left-right direction. Then, the fastening hat steels are fastened together by fastening bolts. As a result, the insulation panels are fastened together by the fastening hat steels while maintaining a predetermined distance. Furthermore, the surface material at both ends of the insulation panel is fixed to the fastening hat steels by screws, so that the ends are held without being damaged. Furthermore, by filling the gaps in the vertical joints formed by the insulation panels with insulation material between the vertical joints, the desired insulation performance is ensured in the vertical joints of the exterior wall system of a freezing and refrigeration facility, where insulation damage is likely to occur. In this way, the fastening hat steels on the front and back of the vertical joints of the insulation panels are fastened together by fastening bolts, and the surface material and the fastening hat steel are fixed together by screws, so that the ends of the surface material, which are likely to peel off, are held down, and the insulation performance and moisture-proofing and waterproofing performance at the ends of the insulation panels can be improved.

[0014] In addition, it is preferable that adjacent vertical furring strips in the left-right direction at the ends of the insulation panel are connected by a cover plate, and the gap formed by the vertical furring strips and the cover plate is filled with insulation material between the vertical furring strips to cover the insulation material between the vertical joints from the inside of the freezing and refrigeration facility. In this way, the insulation effect can be more reliably improved by filling the insulation material between the vertical furring strips so as to cover the insulation material between the vertical joints from the inside of the freezing and refrigeration facility.

[0015] In addition, it is preferable that the insulation panel is supported by a plurality of vertical furring strips arranged at a predetermined interval, and that the vertical furring strips are each connected to the insulation panel by a fixing hat steel, thereby making it possible to more firmly fasten the insulation panel to the vertical furring strips.

[0016] In addition, it is preferable that the insulation panel is fastened to the vertical furring strip by at least one of a single-edged angle or a washer, so that the insulation panel can be stably fixed to the vertical furring strip.

[0017] In addition, it is preferable that the vertically arranged insulation panels are fastened to each other by at least one of a single-edged angle bar or a double-edged C-shaped steel bar via a screw. This allows the vertically arranged insulation panels to be stably fixed to each other.

[0018] In addition, it is preferable that the insulation panels arranged in the vertical direction are each provided with an upper recess and a lower recess, and a rectangular insulation block is fitted between the upper recess and the lower recess, so that the insulation panels adjacent in the vertical direction can be stably fixed.

[0019] In addition, it is preferable that the insulation blocks provided in the horizontal joints of vertically adjacent insulation panels are connected to the insulation panels via at least one of a waterproof sheet or a waterproof seal, thereby ensuring the insulation performance around the horizontal joints of vertically adjacent insulation panels and reducing construction errors. Effect of the Invention

[0020] As described above, the exterior wall system for a freezing and refrigeration facility of the present invention can provide an exterior wall system for a freezing and refrigeration facility that exhibits high levels of insulation performance, as well as moisture-proofing and waterproofing performance around the vertical joints and horizontal joints of the exterior wall of the freezing and refrigeration facility.

[0021] In addition, in the exterior wall system of a freezing and refrigeration facility, precise construction of the insulation panels on the exterior walls of the freezing and refrigeration facility can provide high-quality insulation performance as well as moisture and water resistance.

[0022] Furthermore, it is possible to provide an exterior wall system for a freezing and refrigeration facility that does not require much effort in constructing insulating panels, is structurally safe against external forces such as earthquakes and wind, and does not cause deformation or cracks in the exterior walls. [Brief description of the drawings]

[0023] [Figure 1] 1 is a perspective view showing the schematic configuration of one embodiment of a vertical joint area of ​​an exterior wall system for a refrigeration facility according to the present invention, viewed from above. FIG. [Diagram 2] A cross-sectional view and an exploded view showing the schematic configuration of the vertical joint in Fig. 1. Fig. 2(a) shows an example in which the vertical furring strips are fixed with fixing hat steel and screws. Fig. 2(b) shows an example in which the vertical furring strips are fixed with a cover plate, a surface material, and screws. [Diagram 3] A detailed cross-sectional view of the vertical furring strips and fixing hat steel in Fig. 1. Fig. 3 shows an embodiment in which the vertical furring strips are fixed to the insulation panel via the fixing hat steel in the case of Fig. 2(a). [Figure 4] FIG. 2 is a detailed cross-sectional view of the fastening hat steel of FIG. 1. [Diagram 5] FIG. 1 is a perspective view showing a method of fastening an insulation panel using a single-edged angle (or a double-edged C-shaped steel) around a horizontal joint. [Figure 6] FIG. 6 is a detailed cross-sectional view showing an insulation block inserted between the upper recess and the lower recess of the insulation panel of FIG. 5. [Figure 7] FIG. 11 is a cross-sectional view showing a method of fastening an insulation panel using a single-edged angle bar and a double-edged C-shaped steel bar. [Figure 8] FIG. 1 is an explanatory diagram showing the arrangement of single-edged angles and double-edged C-shaped steel beams in a horizontal joint. [Figure 9] 7 shows detailed views of the single-edged angle and double-edged C-shaped steel, concave washer, and countersunk screw in FIG. 6. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] (Exterior wall system configuration for refrigeration facilities) The configuration of the vertical joint 3a of the exterior wall system 1 for a freezing and refrigeration facility according to the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a schematic configuration of one embodiment of the vertical joint 3a of the exterior wall system 1 in a perspective view seen from above. FIG. 2 shows a schematic configuration of the vertical joint 3a of FIG. 1 in a cross-sectional view and an exploded view. In the exterior wall system 1, the periphery of the freezing and refrigeration facility is insulated by surrounding it with the insulating panels 2, and the room temperature of the freezing and refrigeration facility is kept at a predetermined temperature. The insulating panels 2 are stacked in the vertical direction with their front and back surfaces covered with the surface material 22. The insulating panels 2 are supported by a plurality of vertical furring strips 6. In this embodiment, as shown in FIG. 2(a), the vertical furring strips 6 are fixed to the insulating panels 2 by fixing hat steel 8b. The vertical furring strips 6 are lip channel steel, but may be other furring strips. The pitch of the vertical furring strips 6 is calculated and determined each time depending on the location conditions and shape of the freezing and refrigeration facility. Fig. 2(a) shows an embodiment in which the vertical furring strips 6 are firmly fixed to the insulation panel 2 by fixing hat steel 8b and screws 13. Fig. 2(b) shows an embodiment in which the vertical furring strips 6 are fixed to the cover plate 25, the surface material 22, and screws 13.

[0025] (Configuration of vertical joints) As shown in FIG. 2, in this exterior wall system 1, fastening hat steels 8a are attached to the front and back of the vertical joints 3a of the thermal insulation panels 2 adjacent in the left-right direction. The fastening hat steels 8a are fastened to each other by fastening bolts 10a, and the gaps of the vertical joints 3a formed by the thermal insulation panels 2 are filled with the vertical joint insulation material 4b. The fastening hat steel 8a has a cross section in a shape in which an L-shaped fastening hat steel flange portion 14a (hereinafter simply referred to as the flange portion 14a) is attached to both sides of an I-shaped fastening hat steel web portion 14b (hereinafter simply referred to as the web portion 14b). Then, a packing 7a is inserted into the L-shaped shape of the flange portion 14a, and the panel is fixed to the thermal insulation panel 2 by a screw 13. In this way, the thermal insulation panels 2 adjacent in the left-right direction are set at a predetermined interval by the width of the web portion 14b. A hole is provided in the center of the web portion 14b, and a hat-shaped steel 8a for fastening the front and back surfaces is connected by a fastening bolt 10a. The end faces of each insulation panel 2 are so-called "uncut" surfaces when the panel is manufactured, and have the disadvantage that the surface material 22 and the like are easily "peeled off" from the core material. Therefore, by fastening both ends of the insulation panel 2 with the fastening hat-shaped steel 8a, this "peeling off" can be prevented.

[0026] The fastening hat steel 8a contacts the insulation panel 2 via a sealant 9 for preventing the intrusion of rainwater and a packing 7a for preventing the transfer of heat. FIG. 1 shows the packing 7a attached to the back side of the fastening hat steel 8a. This improves the insulation and waterproofing. For example, the sealant 9 in FIG. 2 is installed to prevent rainwater and condensation water from entering the vertical furring strip insulation material 4a from the outside through the back of the fastening hat steel 8a. The fastening bolt 10a is connected to the nut 10b via the washer 11. The fastening hat steel 8a is fastened by the bolt 10a, the nut 10b, and the washer 11. This fastening protects the end of the insulation panel 2, especially the corners, from being damaged, and improves the insulation. The pitch of the fastening bolt 10a may be any pitch within a range that can withstand wind and earthquake forces. 1 and 2, the insulating panels 2 are fixed at their ends by a cover plate 25 to which adjacent vertical furring strips 6 are screwed together. This cover plate 25 can prevent the insulating material from being exposed inside the freezing and refrigeration facility. In this embodiment, as shown in FIG. 2(a), the gap formed by the vertical furring strips 6 that fix the insulating panels 2 adjacent to each other in the left-right direction is filled with inter-vertical furring strip insulating material 4a. In this way, two types of insulating material, the inter-vertical furring strip insulating material 4a shown in FIG. 1 and the inter-vertical joint insulating material 4b shown in FIG. 2, are formed between adjacent insulating panels 2, and the insulating performance of the joints of the insulating panels 2 is ensured.

[0027] FIG. 3 shows a detailed cross-sectional view of the vertical furring strips 6 and the fixing hat steel 8b in FIG. 1. FIG. 3 shows an embodiment of the case of FIG. 2(a) in which the vertical furring strips 6 are fixed to the insulation panel 2 via the fixing hat steel 8b. FIG. 3(a) shows a detailed view of the vertical furring strips 6 fixed to the insulation panel 2 by the fixing hat steel 8b and the screws 13. The screws 13 are provided on three or four sides. FIG. 3(b) shows the fixing hat steel 8b alone and its AA cross-sectional view and BB cross-sectional view. As shown in FIG. 2, adjacent vertical furring strips 6 are provided at a pitch of about 1200 mm to support the insulation panel 2. The fixing hat steel 8b is fixed to the insulation panel 2 at a pitch of about 450 mm in the height direction. The gaps between the insulation panels 2 adjacent in the left-right direction are filled with the vertical joint insulation material 4b to complement the insulation performance of the insulation panel 2. The pitch of the vertical furring strips 6 and the fixing hat steel 8b may be other pitches.

[0028] Fig. 4 shows a detailed cross-sectional view of the fastening hat steel 8a in Fig. 1. Fig. 4(a) shows a cross-sectional view of the fastening hat steel 8a and its CC side view and DD side view. As shown in the CC side view, this fastening hat steel 8a has a through hole 15 in the center of the fastening hat steel web portion 14b, through which the fastening bolt 10a passes.

[0029] (The role of single-edged angle and double-edged C-shaped steel) The configuration of the horizontal joint surroundings 3b of the external wall system 1 of a freezing and refrigeration facility according to the present invention will be described in detail below with reference to the drawings. FIG. 5 is a perspective view showing a schematic configuration of one embodiment of the horizontal joint surroundings 3b of the external wall system 1 of a freezing and refrigeration facility. The single-edged angle 12a and the double-edged C-shaped steel 12b (see FIG. 9) shown in FIGS. 5 to 9 have two roles. That is, they have a role of connecting the insulation panels 2 adjacent in the vertical direction, and a role of fixing each insulation panel 2 to the vertical furring strip 6. Furthermore, the single-edged angle 12a and the double-edged C-shaped steel 12b (see FIG. 9) fix the insulation block 23 inserted between the upper and lower insulation panels 2 to the insulation panel 2.

[0030] As shown in FIG. 6, the insulation panels 2 adjacent in the vertical direction of the exterior wall system 1 form a horizontal joint 3b. In order to ensure moisture-proofing, waterproofing and heat insulation performance in this horizontal joint 3b, an insulation block 23 is inserted. This insulation block 23 is a rectangular block made of a heat insulating material, and is inserted into the gap between the upper recess 18a and the lower recess 18b shown in FIG. 6 of the insulation panels 2 adjacent in the vertical direction. Also, as shown in FIG. 7(a) and (b), this insulation block 23 is connected to the insulation panel 2 via a waterproof sheet (or waterproof seal) 11. This waterproof sheet (or waterproof seal) 11 ensures moisture-proofing, waterproofing and heat insulation performance in the horizontal joint 3b between the insulation panels 2 adjacent in the vertical direction. The vertical furring strips 6 may be connected to the insulation panel 2 by a fixing hat-shaped steel 8b, or may be connected directly to the insulation panel 2 by a screw 13 without using the fixing hat-shaped steel 8b.

[0031] (Horizontal joint configuration) FIG. 7 shows a cross-sectional view of a method for fastening the insulation panel 2 using the single-edged angle 12a and the double-edged C-shaped steel 12b. FIG. 8 shows the arrangement of the single-edged angle 12a and the double-edged C-shaped steel 12b in the horizontal joint 3b in FIG. 7. As shown in FIG. 6, the insulation panel 2 is provided with an upper recess 18a and a lower recess 18b adjusted to a size in which the insulation block 23 is fitted. The insulation block 23 is fitted into the upper recess 18a and the lower recess 18b, and the insulation panels 2 adjacent in the vertical direction are installed. That is, the insulation block 23 plays a role of joining the upper recess 18a and the lower recess 18b and a role of positioning them when they are joined. The clearance between the upper recess 18a and the lower recess 18b and the insulation block 23 is related to the accuracy of the installation of the insulation panel 2.

[0032] As shown in Fig. 7, the single-edged angle 12a or double-edged C-shaped steel 12b includes the single-edged angle 12a that is "L" shaped and consists of one flange 14a, and the double-edged C-shaped steel 12b that is "U" shaped and consists of two flanges 14a. As shown in Fig. 7, the single-edged angle 12a fixes the insulation panel 2 to the vertical furring strip 6. Here, the single-edged angle 12a can more firmly fasten the insulation panel 2 to the vertical furring strip 6 due to its saw-shaped blade. This single-edged angle 12a may be replaced with a washer 11 as long as the fastening strength is sufficient.

[0033] On the other hand, the double-edged C-shaped steel 12b is provided as a base material for driving the screws 13b at the midpoint where the vertical furring strips 6 are not provided. This double-edged C-shaped steel 12b may be a single-edged angle 12a. This single-edged angle 12a or double-edged C-shaped steel 12b fastens the insulation panels 2 adjacent to each other in the vertical direction.

[0034] FIG. 7 shows in cross-section a method of fastening an insulation panel 2 to a vertical furring strip 6 and a method of fastening insulation panels together using a single-edged angle 12a and a double-edged C-shaped steel 12b. FIG. 7(a) shows a case where a single-edged angle 12a is used to fasten an insulation panel 2 to a vertical furring strip 6 with a countersunk screw 13a via a concave washer 27. This single-edged angle 12a may be a washer. On the other hand, FIG. 7(b) shows a case where a double-edged C-shaped steel 12b is used to fasten insulation panels 2 together with a screw 13b. This double-edged C-shaped steel 12b may be a single-edged angle 12a.

[0035] FIG. 8 is a front view showing a method of fastening an insulation block 23 using a single-edged angle 12a and a double-edged C-shaped steel 12b. The diagram also illustrates the relationship between the single-edged angle 12a or double-edged C-shaped steel 12b and the vertical furring strips 6 in the horizontal joint area 3b. The double-edged C-shaped steel 12b is provided at any position within the space between the vertical furring strips 6, and the single-edged angle 12a is provided at the pitch of the vertical furring strips 6. The double-edged C-shaped steel 12b connects the insulation panels 2 adjacent in the vertical direction. Meanwhile, the single-edged angle 12a fixes the insulation panel 2 to the vertical furring strip 6.

[0036] FIG. 9 shows a detailed view of the single-edged angle (or C-shaped steel) 12 in FIG. 7(a), the double-edged C-shaped steel 12b in FIG. 7(b), the concave washer 27, and the countersunk screw 13a. FIG. 9(a) shows a plan view of the single-edged angle (or C-shaped steel) 12, its AA cross-sectional view, and its BB cross-sectional view. FIG. 9(b) shows a plan view of the double-edged C-shaped steel 12b, its CC cross-sectional view, and its DD cross-sectional view. The single-edged angle (or C-shaped steel) 12 has a saw-like engaging portion 17 that is a saw-like tooth shape, and the tooth shape firmly bites into the heat-insulating panel 2. The single-edged angle (or C-shaped steel) 12 includes the double-edged C-shaped steel 12b with the tooth shape attached on both sides, and the single-edged angle 12a with the tooth shape attached on one side. FIG. 9(c) shows the concave washer 27, the double-edged C-shaped steel 12b, and the countersunk screw 13a. 9(d) is a plan view and an E-E sectional view of the concave washer 27. The concave washer 27 is used when fastening the insulation panel 2 to the vertical furring strip 6 with the countersunk screw 13a.

[0037] The configuration, shape, size, and layout of the outer wall system 1 of the freezing and refrigeration facility described in the above embodiment are merely shown in a schematic manner to enable the present invention to be understood and implemented. Therefore, the present invention is not limited to the described embodiment, and can be modified in various forms without departing from the scope of the technical idea shown in the claims. [Explanation of symbols]

[0038] 1 (for refrigeration and freezing facilities) external wall system, 2 insulation panel, 3a vertical joint (or around vertical joint), 3b horizontal joint (or around horizontal joint), 4a insulation between vertical furring strips, 4b insulation between vertical joints, 6 vertical furring strips, 7a gasket, 8a fastening hat steel, 8b fixing hat steel, 9 sealing material, 10a fastening bolt, 10b nut, 11 washer, 12 single-edged angle (or C-shaped steel), 12a single-edged angle (or washer), 12b double-edged C-shaped steel (or single-edged angle), 13 screw (short), 13a countersunk screw, 13b screw (long), 14a fastening hat steel flange, 14b fastening hat steel web, 15 through hole, 17 saw-shaped locking portion, 18a Upper recess, 18b lower recess, 19 sloped portion, 20 waterproof sheet (or waterproof seal), 22 facing material, 23 insulation block, 25 cover plate, 26 panel joint, 27 recessed washer, 28 plate washer, 29 joint seal.

Claims

1. A hat-shaped steel fastening member is attached to the front and back surfaces of the vertical joints of the insulation panels adjacent in the left-right direction, and the hat-shaped steel fastening members on the front and back surfaces are fastened to each other by fastening bolts. The insulation panels arranged in the vertical direction are each provided with an upper recess and a lower recess, and a rectangular insulation block is inserted between the upper recess and the lower recess. An exterior wall system for a refrigeration and freezing facility.

2. 2. The exterior wall system of a freezing and refrigeration facility according to claim 1, wherein a vertical joint insulation material is filled in the gap surrounded by the fastening hat steel on the front and back sides and the insulation panels adjacent in the left and right direction.

3. 3. The exterior wall system for a refrigeration and freezing facility according to claim 1 or 2, wherein the insulation panel is fastened to a vertical furring strip by at least one of a single-edged angle or a washer.

4. 4. An exterior wall system for a refrigeration facility according to claim 1, wherein the insulation block is connected to the insulation panel via at least one of a waterproof sheet or a waterproof seal.

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