GB2320040A - Insulated wall panel for e.g. a cold store - Google Patents
Insulated wall panel for e.g. a cold store Download PDFInfo
- Publication number
- GB2320040A GB2320040A GB9725529A GB9725529A GB2320040A GB 2320040 A GB2320040 A GB 2320040A GB 9725529 A GB9725529 A GB 9725529A GB 9725529 A GB9725529 A GB 9725529A GB 2320040 A GB2320040 A GB 2320040A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wall panel
- lower portion
- upper portion
- panel according
- facing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000011152 fibreglass Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 13
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000005755 formation reaction Methods 0.000 claims 2
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 3
- 239000011496 polyurethane foam Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 229920006327 polystyrene foam Polymers 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/10—Buildings forming part of cooling plants
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
- F25D2201/12—Insulation with respect to heat using an insulating packing material
- F25D2201/126—Insulation with respect to heat using an insulating packing material of cellular type
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
Abstract
A wall panel for a cold store has an insulation layer 3, e.g. of expanded polyurethane foam sandwiched between an outer facing 8 and an inner facing 1, 2. The inner facing is divided into an upper portion 1, e.g. of sheet metal, and a lower, more durable portion 2 preferably formed from glass reinforced plastics.
Description
WALL PANEL
This invention relates to wall panels, and is concerned especially, but not exclusively, with wall panels for cold stores.
The present invention provides a wall panel comprising an insulation layer secured to a facing having an upper portion and a lower portion, the lower portion being formed from a more durable material than the upper portion. In the context of the present specification, the durability of a material is to be taken to be a measure of the material's resistance to impact, abrasion and corrosion.
Typically, a cold store wall panel includes an insulation layer which consists of polyurethane foam, polystyrene foam or rock wool. During its lifetime a panel can be subjected to considerable wear, e.g. due to abrasion or impacts and corrosion, and to protect the insulation layer a facing is required. The choice of material used for the facing is dictated by the properties of the material and its cost; invariably the more suitable the properties of a material, the greater its expense. The present invention resides in the recognition that wear and tear on a wall panel is not uniformly distributed over the surface of the facing, but rather it is concentrated towards the base of the panel. Hence, by providing a wall panel with a more durable lower portion, the lifespan of the panel can be increased significantly without adversely affecting its cost.
Preferably, the lower portion extends to a height of between im and 1.5m from the base of the panel. Above this height the panel is subject to significantly less wear, and therefore a less durable material can be used without compromising the durability of the panel as a whole.
In the preferred embodiment the upper portion of the facing is formed from a metal sheet, e.g. of coated steel, and the lower portion is made of glass reinforced plastics ('GRP').
A clear understanding of the invention will be gained from the following detailed description, given with reference to the accompanying drawings in which:
Figure 1 shows in perspective a pair of panels according to a preferred embodiment of the invention; and
Figure 2 is a partial cross-sectional view of the panel shown in
Figure 1.
A section of a cold store wall is illustrated in the drawing. A rectangular wall panel has an inner facing 1,2 and an outer facing 8 sandwiching an insulation layer 3 formed of good thermally insulating material, e.g.
polyurethane foam or polystyrene foam. A lower rectangular portion 2 of the inner facing, preferably formed from GRP, is flush with the base and sides of the interior face of the insulation layer 3 and it extends up to a height of about 1.2m.
An upper portion 1 of the inner facing covers the remainder of the interior face of the insulation layer and is formed from plastics coated steel approximately 0.6mm thick with returned flanges about lOmm wide around its edges.
The exposed surface of the inner facing is planar and the junction between the portions 1,2 may incorporate an internal overlap, i.e. ajoggle joint, to carry vertical and lateral mechanical load across the junction. In a preferred embodiment a generally L-shaped intermediate metal sheet 9 is bonded or fastened, e.g. by double sided adhesive tape, to the upper interior surface of the lower portion 2. An inwardly projecting flange 10 at the upper edge of the intermediate sheet 9 is bonded and/or mechanically fastened e.g. riveted, to a complementary flange 11 on the upper portion 1 to join the upper and lower portions of the inner facing. The confronting surfaces of the lower portion 2 and the flange 11 may be spaced apart, and a sealing strip or beading (not shown) may fill the gap to seal the join between the two portions. An upwardly projecting lip 12 at the distal end of the flange 10 facilitates accurate alignment of the flanges and thus the facing portions 1, 2.
The GRP lower portion 2 has a thickness of 1 to 3mm, e.g. about 2mm. The laminate is of balanced construction to avoid distortion due to curing stresses, i.e. there is a surface tissue on both faces with a layer of chopped strand mat each side of a centrally positioned material, e.g. woven roving glass fibre reinforcement. Woven roving is preferred for maximum strength and impact resistance.
The outer facing 8 can be of the same construction as the inner facing of the panel but if it is not likely to be subject to wear and knocks it can consist of metal sheet such as painted or galvanised steel, or plastics coated steel as for the upper portion of the inner facing.
Although the exposed surface of the inner facing is planar, the opposite surface is non-planar due to the different thicknesses of the upper and lower portions, and the local variation in thickness where the two portions are joined together. To accommodate these variations in thickness of the facing, the insulating layer 3 is preferably formed in situ, i.e. it is formed by injecting expanding foam material into a mould lined with the facings. The interior surface of the GRP may be corona treated to increase the surface free energy and also to place polar molecules on the surface to improve adhesion to the insulating layer.
The joggle joint at the junction of the portions 1,2 serves to prevent the egress of the foam introduced into the moulding, and avoids unsightly damage to the external surface of the panel.
The panel may be formed with contoured side edges, e.g. with complementary tongues and grooves, to facilitate assembly of panels edge-to-edge in the construction of a cold store. Also one or more locking mechanisms, e.g.
cam locks 6, may be provided to interlock releasably the adjoining panels.
The exterior surface finish of the GRP may be smooth gloss, smooth satin or it may be embossed to contrast with the plastics coated steel of the upper portion 1 and thereby to improve the aesthetic appearance of the panel. When a number of panels are secured together in a cold store the adjoining edges of the facing portions may be protected with, say, silicon beading 5 or PVC strips 4 of barbed T section.
The preferred embodiment of the invention combines the superior corrosion and impact properties of GRP with the low cost of steel, to provide an optimum combination of materials at a reasonable cost.
Modifications are of course possible without departing from the scope of the invention. Materials other than GRP and steel, but with similar material properties, could be utilised.
Claims (9)
1. A wall panel comprising an insulation layer secured to a facing having an upper portion and a lower portion, the lower portion being formed from a more durable material than the upper portion.
2. A wall panel according to claim 1 wherein the material of the lower portion is glass reinforced plastics.
3. A wall panel according to claim 1 or 2, wherein the upper portion comprises a metal sheet.
4. A wall panel according to claim 1, 2 or 3, wherein the lower portion extends to a height in the range of lm to 1.5m from the base of the panel.
5. A wall panel according to any one of the preceding claims, wherein the side edges of the panel have formations for engagement with complementary formations on an adjacent panel.
6. A wall panel according to any one of claims 1 to 5, wherein locking means are housed in the panels for interlocking adjacent panels.
7. A wall panel according to any one of the preceding claims, wherein an intermediate member is secured to the upper portion and the lower portion to join the portions.
8. A wall panel according to claim 7, wherein the intermediate member is adhesively joined to the lower portion and is fastened mechanically to the upper portion.
9. A wall panel substantially as herein described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9625425.5A GB9625425D0 (en) | 1996-12-06 | 1996-12-06 | Wall panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9725529D0 GB9725529D0 (en) | 1998-02-04 |
| GB2320040A true GB2320040A (en) | 1998-06-10 |
Family
ID=10804081
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9625425.5A Pending GB9625425D0 (en) | 1996-12-06 | 1996-12-06 | Wall panel |
| GB9725529A Withdrawn GB2320040A (en) | 1996-12-06 | 1997-12-02 | Insulated wall panel for e.g. a cold store |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9625425.5A Pending GB9625425D0 (en) | 1996-12-06 | 1996-12-06 | Wall panel |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB9625425D0 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2019363A (en) * | 1978-04-01 | 1979-10-31 | Thyssen Industrie | Insulated container |
| GB2090394A (en) * | 1980-11-07 | 1982-07-07 | Aeolos Holding Ag | Panel element for use in constructing insulating chambers |
| WO1984002549A1 (en) * | 1982-12-27 | 1984-07-05 | David Alfred Hellgren | Wall slab |
| US4505082A (en) * | 1982-02-10 | 1985-03-19 | Peter Schmitz | Structural panel |
| WO1991004205A1 (en) * | 1989-09-21 | 1991-04-04 | Peter Liljegren | Heat insulating wall panel, particularly for walls of goods containers |
| GB2241516A (en) * | 1990-02-17 | 1991-09-04 | Truck Panels Limited | Insulated panels and assemblies |
-
1996
- 1996-12-06 GB GBGB9625425.5A patent/GB9625425D0/en active Pending
-
1997
- 1997-12-02 GB GB9725529A patent/GB2320040A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2019363A (en) * | 1978-04-01 | 1979-10-31 | Thyssen Industrie | Insulated container |
| GB2090394A (en) * | 1980-11-07 | 1982-07-07 | Aeolos Holding Ag | Panel element for use in constructing insulating chambers |
| US4505082A (en) * | 1982-02-10 | 1985-03-19 | Peter Schmitz | Structural panel |
| WO1984002549A1 (en) * | 1982-12-27 | 1984-07-05 | David Alfred Hellgren | Wall slab |
| WO1991004205A1 (en) * | 1989-09-21 | 1991-04-04 | Peter Liljegren | Heat insulating wall panel, particularly for walls of goods containers |
| GB2241516A (en) * | 1990-02-17 | 1991-09-04 | Truck Panels Limited | Insulated panels and assemblies |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9625425D0 (en) | 1997-01-22 |
| GB9725529D0 (en) | 1998-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |