KR102341806B1 - Precast wall panel for refrigerating or freezing storge - Google Patents

Abstract

The present invention relates to a structure of a partition panel for a refrigerating or freezing storage, which satisfies insulation performance required by a refrigerating or freezing storage, improves constructability, and minimizes casualties even though a fire occurs during a manufacturing and constructing process of a partition panel. The present invention comprises: a planar insulation material; and first and second finishing concrete installed on both side surfaces of the insulation material. The insulation material and the first and second finishing concrete are integrated by a pre-assembled reinforcing bar net, and each thermal bridge barrier with an L-shaped cross-section is inserted into installation grooves formed in a column in a vertical direction in each vertical end part of the first and second finishing concrete.

Description

Partition precast panel for refrigerated warehouses {PRECAST WALL PANEL FOR REFRIGERATING OR FREEZING STORGE}

The present invention relates to a partition panel installed in a refrigerated warehouse requiring thermal insulation, and more specifically, to a partition panel that satisfies the thermal insulation performance required in a refrigerated warehouse and improves the workability, and the manufacturing and construction process of the partition panel It relates to the structure of a partition panel for refrigerated warehouses that can minimize human casualties even if a fire occurs during the process.

Recently, not only the demand for livestock and fishery products has increased significantly, but also with the increase in income, consumers' desire for fresh, high-quality livestock and fishery products is increasing. Therefore, the construction of frozen and refrigerated warehouses that can store agricultural and livestock products for a long time and maintain high quality is continuously being made.

The temperature required in the refrigerated warehouse is very low compared to the outside, and the temperature difference with the outside can be 50℃ or more, especially in summer. In addition, it is necessary to freeze or refrigerate only the room in which the goods are stored for each room in the freezing/refrigeration warehouse, and each wall of the freezing warehouse is required to have high thermal insulation performance.

For insulation panels that form the walls of refrigerated warehouses, urethane-filled sandwich panels are mainly used. This is because the insulating layer is formed by foaming the liquid of urethane, so there is no dust generation along with excellent thermal insulation performance, and the formability and workability are very good.

1 shows an example of installing a sandwich panel using urethane as a heat insulator as a refrigeration and freezing facility.

According to this, the upper and lower steel plates, the left and right plates, and. The wall is formed by the urethane panel 80 made of the urethane foam 50 that is foamed and molded in the inner space formed by these, which is the open upper and lower ends of the left and right cylindrical tubes 31 and 41 formed on the left and right plates of the urethane panel. Cylindrical binder fitting step of fitting each of the cylindrical binder 70; The left plate of the urethane panel is in contact with the right plate of another urethane panel so that the left plate 32 formed on the left plate 10 of the urethane panel and the right plate 42 formed on the right plate of another urethane panel are in surface contact with each other. urethane panel alignment step; A connection for interconnecting the urethane panel 80 by connecting the cylindrical binder 70 coupled to the left plate of the urethane panel and the cylindrical binder 70 coupled to the right plate of another urethane panel by a connecting fixing ring 77 fixing step; and a caulking material filling step of injecting and filling the coating material 90 into the inner and outer spaces 91 and 92 formed between the left side plate of the urethane panel and the right side plate of another urethane panel coupled thereto.

However, during the foaming operation of urethane, oil vapor is generated, and the oil vapor of urethane has very high flammability. Therefore, it is easily ignited by a small welding spark in a manufacturing plant or construction site, causing a fire accident.

For example, in 2008, at the construction site of a refrigerated warehouse in Icheon, a fire spread to the urethane oil vapor during the urethane foam work process, causing a chain explosion and toxic gas in an instant, resulting in 40 deaths. 38 people were injured in the explosion and fire accident.

In addition, in the prior art of FIG. 1, there is a problem in that the construction cost increases because the amount of on-site work increases and professional manpower is required due to the need to fill the caulking material in the field.

KR 10-1489153 B1

The present invention is to solve the above problems of the prior art, and it is easy to manufacture and install while securing high thermal insulation performance, and there is no risk of fire during the manufacturing and installation process. Its purpose is to provide

According to the most preferred embodiment of the present invention for solving the above-mentioned topic, it is composed of a plate-shaped insulating material and first and second finished concrete installed on both sides of the insulating material, and the heat insulating material and the first and second finished concrete are line It is integrated by the assembled reinforcing bar network, and at each vertical end of the first and second finished concrete, a B-section heat cross-blocking material fitted into an installation groove formed in the vertical direction to the column is installed, respectively. Partition precast panels are provided.

At this time, a fitting protrusion is formed on one of the upper and lower surfaces of the first and second finished concrete, and a fitting groove is formed on the other surface so that the upper and lower precast panels are coupled while the fitting protrusion is inserted into the fitting groove. have.

In addition, the pre-assembled reinforcing bar network consists of a grid-type reinforcing bar body installed symmetrically on both sides around the heat insulating material, and an assembly that integrates the grid-type reinforcing bar body on both sides while being installed through the heat insulating material, the assembly is a heat insulating material A connecting rod penetrating through, a spacer to set the distance between the outer surface of the insulating material and the grid-type reinforcing bar, a cladding material for fixing the grid-type reinforcing bar to the connecting rod, and a covering to set the concrete cover thickness of the grid-type reinforcing bar It may be composed of a material and an insulating cap that is covered on the end of the connecting rod.

The partition precast panel for refrigerated warehouses of the present invention makes it possible to build a partition with thermal insulation performance only by assembling on-site, thereby eliminating the need for insulation work in the field, and by using a plate-shaped insulation material during the manufacturing process, even in the event of a fire. Make sure that the damage to human life caused by the vapor is minimized.

In addition, the partition precast panel for refrigerated warehouses of the present invention is integrated with the grid-type reinforcing bars installed on both sides through an assembly while using a plate-shaped insulating material, so that it can be manufactured by a vertical mold, minimizing the manufacturing space, It aims to simplify the manufacturing process, secure high integrity of the entire panel, and shorten the manufacturing period.

In addition, in the partition precast panel for refrigerated warehouses of the present invention, the fitting groove formed so that the insulation material protrudes and the fitting projection protruding from the insulation material are engaged with each other and coupled, thereby maintaining the continuity of the upper and lower insulation materials accurately, and the heat cross-blocking material between the columns By blocking the heat flow, it is possible to construct a partition with very high thermal insulation performance.

1 is a perspective view of a sandwich panel structure for a refrigeration and refrigeration facility and a connection structure thereof.
Figure 2 is a perspective view and a cross-sectional view of an embodiment related to the partition precast panel for refrigerated warehouses of the present invention.
3 is a perspective view of another embodiment of the partition precast panel for the refrigeration and refrigeration warehouse.
4 is an explanatory view of a process of constructing a partition using the precast partition for the refrigerated warehouse.
5 is a perspective view in which a part of the partition precast panel for the refrigeration and refrigeration warehouse is cut away.
Figure 6 is a perspective view of a state in which the pre-assembled reinforcing bar network is installed in the insulating material inside the partition precast panel for the refrigeration and refrigeration warehouse.
7 is a partial perspective view of an embodiment related to the structure of the pre-assembled reinforcing bar network.
8 is a partial perspective view of another embodiment related to the structure of the pre-assembled reinforcing bar network.
9 : is explanatory drawing regarding manufacture of the said precast partition for refrigeration warehouses.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in the description of the present invention, in the case of obscuring or obscuring the technical idea of the present invention due to the detailed description of the known configuration, the description of the known configuration will be omitted.

2 and 3 are each showing a partition precast panel (100, hereinafter, referred to as a 'precast panel') for a refrigerated warehouse of the present invention, and FIG. 2 is a standard of the precast panel 100 of the present invention. It shows an embodiment that becomes this, Figure 3 shows a precast panel 100 of another embodiment installed at the bottom, Figure 4 is a partition construction using the precast panel 100 of the present invention It shows the process.

As shown in FIG. 2, the precast panel 100 of the present invention includes a heat insulating material 110 located in the middle of a cross section, and first and second finished concrete 120A and 120B installed on both sides of the heat insulating material 110. ) is made of

The insulating material 110 used in the present invention may be foamed, such as styrofoam. During the manufacturing process of the panel 100, a risk factor due to the generation of oil vapor is not caused.

The first and second finished concretes 120A and 120B function as a partition, and are integrated with the insulating material 110 through a pre-assembled reinforcing bar network 130 to be described later.

As described above, the precast panel 100 of the present invention made of the insulating material 110 and the first and second finished concrete 120A and 120B on both sides thereof, as shown in FIG. It is constructed in such a way that it is laminated as it is fitted.

That is, an installation groove 201 is formed in the pillar 200 in a vertical direction, and the precast panel 100 of the present invention is inserted into the installation groove 201 and stacked in plurality to form a partition.

At this time, a thermal bridge phenomenon may occur between the first finished concrete 120A and the second finished concrete 120B through the pillar 200 .

In order to prevent such a thermal bridging phenomenon, the precast panel 100 of the present invention is completed by installing a B-section thermal cross-blocking material 123 at each vertical end of the first and second finished concrete 120A and 120B, respectively. Concrete (120A, 120B) so that the structure is not in direct contact with the column (200). Therefore, the width of the cross-section flange 123a of the thermal barrier material 123 should be sufficient to cover the cross-sections of the first and second finished concrete 120A and 120B, and the outer surface flange 123b of the thermal barrier material 123. The width should be greater than or equal to the depth of the installation groove 201 of the pillar 200 .

In addition, the precast panel 100 of the present invention is to form a partition while having a laminated structure as described above, so that the joints between the precast panels 100 located in the upper and lower parts are precisely made, so that each heat insulating material ( 110) may be further provided with a coupling means to ensure continuity between.

As an embodiment of the coupling means, a fitting protrusion 121 is formed on one of the upper and lower surfaces of the first and second finished concrete 120A, 120B, and a fitting groove 122 is formed on the other surface to form the It has a structure in which the fitting protrusion 121 is inserted into the fitting groove 122 .

At this time, when the fitting protrusion 121 is configured to protrude from the heat insulating material 110 and the fitting groove 122 is configured to protrude the heat insulating material 110, the first and second finished concrete of either side of the precast panel 100 As the heat insulating material 110 of the other side precast panel 100 is inserted between the fitting projections 121 formed on the 120A and 120B, there is no misalignment between the upper and lower heat insulating materials 110 and accurate continuity can be maintained.

A transport vehicle such as a forklift may be operated in the space formed by the partition formed by the precast panel 100 for loading or transporting goods, but there is a chance that the transport vehicle may collide with the partition during the moving process. . Therefore, as shown in FIG. 3, the precast panel 100 located at the lowermost end of the partition further includes a stopper 124 protruding forward, thereby limiting the range in which the wheels of the transport vehicle move toward the partition. can prevent breakage. The stopper portion 124 is formed at the lower end of at least one of the first and second finished concrete (120A, 120B).

5 to 8 are related to the internal structure of the precast panel 100 of the present invention, Figure 5 is a partial cut-away to show the interior of the precast panel 100 of the present invention as a whole, Figure 6 is a heat insulating material It shows a state in which the pre-assembled reinforcing bar network 130 is installed in 110, FIG. 7 shows an embodiment of the pre-assembled reinforcing bar network 130 structure, and FIG. 8 is a pre-assembly of another embodiment. It is shown with respect to the structure of the reinforcing bar network (130).

The pre-cast panel 100 of the present invention is vertically molded 300 by first installing the pre-assembled reinforcing bar network 130 to integrate the heat insulating material 110 and the first and second finished concrete 120A and 120B in the heat insulating material 110 . make it possible to manufacture with

For example, in the case of manufacturing a precast concrete panel in which another intermediate member such as an insulating material is generally inserted into the concrete, and the thickness of the concrete is very thin, after placing rebar or wire mesh on the bottom surface of the horizontal mold, After pouring the concrete, the intermediate member is laminated on top of it, rebar or wire mesh is placed again, and then the secondary concrete is poured to secure the tightness of the concrete. However, such a manufacturing method using a horizontal mold not only requires a large area of manufacturing space, but also needs to separately provide means such as a shear connector to secure the integrity between the concrete on both sides, and the process according to dividing the concrete pouring It has complexity and delay factors in the air.

However, the precast panel 100 of the present invention uses a pre-assembled reinforcing bar network 130 to install a grid-type reinforcing bar body 130A, which will be described later, on both sides of the insulating material 110 as a center, and then to the vertical mold 300 . Since it can be manufactured, it is possible to secure high integrity for the entire precast panel 100, minimize the manufacturing space, and simplify the process or shorten the manufacturing period according to the concrete batch casting. The process of manufacturing the precast panel 100 using the vertical mold 300 will be described later.

The pre-assembled reinforcing bar network 130 is largely composed of a grid-type reinforcing bar body 130A and an assembly 130B, as shown in FIG. 5 .

The grid-type reinforcing bar body 130A is installed symmetrically on both sides around the insulating material 110 and is embedded in the first finished concrete 120A and the second finished concrete 120B, respectively, and the structural function for the precast panel 100 . do The grid-type reinforcing bar body 130A may be assembled by horizontal reinforcing bars and vertical reinforcing bars, or may be a wire mesh made of thick wire.

The assembly 130B is installed through the insulator 110 while integrating the grid-type reinforcing bars 130A to be positioned on both sides of the insulator 110, and the first and second finished concrete 120A, 120B. It functions to maintain the space between the outer surface of the insulating material 110 and the grid-type reinforcing bars 130A, and the concrete covering thickness for each grid-type reinforcing bar body 130A when pouring concrete for the purpose.

The assembly 130B, a connecting rod 131 penetrating the insulating material 110, and a spacer installed on the connecting rod 131 to set a distance between the outer surface of the insulating material 110 and the grid-type reinforcing bar body 130A (132), a cladding member 133 for fixing the grid-type reinforcing bar body 130A to the connecting rod 131, and a covering holding material 134 for setting the concrete covering thickness of the grid-type reinforcing bar body 130A, and the It consists of a heat insulating cap 135 that is covered on the end of the connecting rod (131).

The connecting rod 131 suffices as long as it is not easily broken or stretched, and there is no need to specifically limit its quality, such as steel or synthetic resin. It is preferable that the thermal conductivity is as low as possible.

As an example, there is a threaded bolt made of stainless steel. The thermal conductivity of stainless steel is only 1/5 of that of general steel. In addition, the threaded screw thread is formed on the outer surface of the threaded bolt, and when a female thread is formed on the inner surface of the spacer 132 and the covering holding material 134, the above-described insulating material 110 outer surface and grid type by the screw fastening method. It is possible to easily and accurately set the spacing between the reinforcing bars 130A and the coating thickness. Therefore, the spacer 132 and the covering holding material 134 may utilize a conventional nut member.

The crossing member 133 is a member for fixing the grid-type reinforcing bar body 130A to the connecting rod 131, as described above. Through-holes 133a having a shape and into which the connecting rod 131 is inserted are provided at the upper portions of both sides, respectively.

The insulating cap 135 serves to prevent the end of the connecting rod 131 from being exposed to the outside as well as to block the conduction of heat to the connecting rod 131 , and it is preferable to be made of a synthetic resin material.

As such, the assembly 130B consisting of a spacer 132, a cladding material 133, a covering holding material 134, and an insulating cap 135 together with the connecting rod 131 is, as shown in FIG. 7, the connecting rod ( 131) and the insulation cap 135, the remaining components may be made of a metal material such as a conventional nut member and a steel plate as described above, but as shown in FIG. 133) and the covering holding material 134 are also composed of synthetic resin material, and the covering holding material 134 and the insulating cap 135 are integrated with the composite cap 136 to reduce the manufacturing cost and improve the convenience of use. can be increased Of course, the spacer 132 may also be integrated with one surface of the geolchimchae.

9 is a view showing the production of the precast panel 100 of the present invention described so far with a vertical mold 300

As shown in FIG. 10 , an embodiment of the vertical mold 300 includes a mold body 310 and a movable side plate 320 .

The mold body 310 includes a fixed side plate 312 that is vertically fixedly installed on the pedestal 311, a magnet plate 313 installed on both ends of the fixed side plate 312, and the fixed side plate 312 and the magnet plate It consists of a bottom plate 314 installed at the lower end of the 313 .

The movable side plate 320 has a structure separated from the mold body 310, and closes the opening of the side portion formed by the fixed side plate 312, the maguri plate 313, and the bottom plate 314, so that the upper opening through which concrete can be poured.

As described above, in the precast panel 100 according to the present invention, fitting protrusions 121 and fitting grooves 122 can be formed on the upper and lower surfaces of the first and second finished concrete 120A and 120B, and grooves for these The forming protrusion 331 and the protrusion forming groove 332 may be provided at each upper end of the fixed side plate 312 and the movable side plate 320 , and at both side ends of the bottom plate 314 , respectively.

In the production of the precast panel 100 of the present invention using the vertical mold 300 configured as described above, first, the B-section heat cross-blocking material 123 is attached to both ends of the magnet plate 313, and the heat insulating material 110 is included. After the pre-assembled reinforcing bar network 130 is inserted into the mold body 310 , the side opening of the mold body 310 is closed with the movable side plate 320 . And finally, by pouring concrete through the upper opening of the vertical mold 300, the first and second finished concrete 120A, 120B in which the grid-type reinforcing bars 130A are embedded in both sides of the insulating material 110 are formed make it possible By removing the vertical mold 300 when the curing of the concrete is completed, the precast panel 100 of the present invention in which a B-section heat cross-blocking material 123 is installed at each vertical end of the first and second finished concrete 120A, 120B. production is completed for

In the above, the present invention has been described in detail with reference to specific embodiments, but the embodiments are merely examples for easy understanding of the present invention. It is self-evident that it can be implemented with various modifications within. Accordingly, such modifications will be said to be within the scope of the present invention as described in the claims.

100; precast panel 110; insulator
120A; The first finished concrete 120B; 2nd Finished Concrete
121; fitting projection 122; fitting groove
123; thermal barrier material 123a; section flange
123b; outer flange 124; stopper
130; pre-assembled reinforcing bar network 130A; Lattice Reinforcement
130B; assembly 131; connecting rod
132; spacer 133; hanging material
133a; through hole 134; cloth holding material
135; insulation cap 136; composite cap
200; pillar 201; installation home
300; vertical mold 310; mold body
311; pedestal 312; fixed side plate
313; Maguri plate 314; Sole plate
320; movable side plate 331; groove forming protrusion
332; protrusion forming groove

Claims (7)

It consists of a plate-shaped heat insulating material and first and second finished concrete installed on both sides of the heat insulating material, and the heat insulating material and the first and second finished concrete are integrated by a pre-assembled reinforcing bar network, and each of the first and second finished concrete is At the vertical end, a B-section heat-crossing barrier material that is fitted into an installation groove formed in the vertical direction to the column is installed, respectively,
The pre-assembled reinforcing bar network consists of a grid-type reinforcing bar body installed symmetrically on both sides around the heat insulating material, and an assembly that integrates the grid-type reinforcing bar body on both sides while being installed through the heat insulating material,
The assembly includes a connecting rod passing through the insulating material, a spacer for setting a distance between the outer surface of the insulating material and the grid-type reinforcing bar, and a crossing material for fixing the grid-type reinforcing bar to the connecting rod, and concrete covering of the grid-type reinforcing bar It consists of a covering holding material for setting the thickness, and an insulating cap covering the end of the connecting rod,
The spacer, the cladding material, the covering holding material and the insulating cap are made of a synthetic resin material, and the covering holding material and the insulating cap are made of a composite cap integrally molded,
A partition precast panel for freezing and refrigeration warehouses, characterized in that a stopper protruding forward is formed at the lower end of at least one of the first and second finished concrete. According to claim 1,
Among the upper and lower surfaces of the first and second finished concrete, a fitting protrusion is formed to protrude more than the heat insulating material on one side, and a fitting groove into which the fitting protrusion is inserted so that the heat insulating material protrudes is formed on the other surface. Partition precast panel for refrigerated warehouses. delete delete delete According to claim 1,
The connecting rod is a partition precast panel for refrigerated warehouses, characterized in that it is a computerized bolt made of stainless steel.
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