CN104291774A - Composite thermal insulation layer structure for refrigerators and freezers - Google Patents
Composite thermal insulation layer structure for refrigerators and freezers Download PDFInfo
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- CN104291774A CN104291774A CN201310294005.5A CN201310294005A CN104291774A CN 104291774 A CN104291774 A CN 104291774A CN 201310294005 A CN201310294005 A CN 201310294005A CN 104291774 A CN104291774 A CN 104291774A
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- rock stratum
- expanded pearlite
- refrigerator
- pearlite rock
- layer
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Abstract
The invention discloses a composite thermal insulation layer structure for refrigerators and freezers. The structure is formed by sequentially laminating the following layers: an upper expanded perlite layer, a polyurethane layer and a lower expanded perlite layer. Each of the upper and lower expanded perlite layers comprises 30-40% of perlite particles, 20-30% of ceramic particles, 10-20% of sodium silicate, 8-10% of water glass and 10-20% of water. The particle size of the perlite particles is 30-50 micrometers. The particle size of the ceramic particles is 50-80 micrometers. The polyurethane layer is formed by mixing and foaming the following specific materials: 20-30% of polyether polyol, 20-30% of polyester polyol, 5-8% of cyclopentane and 40-50% of isocyanate. The refrigerator and freezer composite thermal insulation layer structure adopts a sandwich structural form. With the upper and lower expanded perlite layers, overall strength can be effectively enhanced, and a good sound insulation effect can be provided. The overall performance is effectively enhanced.
Description
Technical field
The present invention relates to refrigerator, refrigerator-freezer technical field, particularly relate to the compound heat-insulation Rotating fields of a kind of refrigerator, refrigerator-freezer.
Background technology
For ensureing the heat insulation and preservation effect of refrigerator, refrigerator-freezer, the inside of refrigerator and refrigerator-freezer is all provided with corresponding thermofin; Be applied to refrigerator in prior art, the compound heat-insulation Rotating fields of refrigerator-freezer is commonly urethane thermofin, and the mode that urethane thermofin generally adopts disposable material feeding to foam is prepared from.
In the process of manufacture of reality, there is the comparatively complicated defect of technique in the mode of above-mentioned disposable material feeding foaming; For overcoming the deficiency existing for above-mentioned technology mode, in prior art, also there is a kind of thermofin of assembled structure, by urethane thermofin modularization and by erection method by aggregates for the conjunction of urethane thermofin module spliced; But urethane thermofin module strength is limited and soundproof effect is poor.
Summary of the invention
The object of the invention is to the compound heat-insulation Rotating fields providing a kind of refrigerator, refrigerator-freezer for the deficiencies in the prior art, the compound heat-insulation Rotating fields bulk strength of this refrigerator, refrigerator-freezer is high and soundproof effect good.
For achieving the above object, the present invention is achieved through the following technical solutions.
The compound heat-insulation Rotating fields of a kind of refrigerator, refrigerator-freezer, by expanded pearlite rock stratum on, a layer of polyurethane and once expanded pearlite rock stratum form, upper expanded pearlite rock stratum, layer of polyurethane and lower expanded pearlite rock stratum stack gradually from top to bottom to be arranged and bonding by glue successively;
Upper expanded pearlite rock stratum and lower expanded pearlite rock stratum include the material of following component respectively, are specially:
Perlite particle 30% ~ 40%
Ceramic particle 20% ~ 30%
Water glass 10% ~ 20%
Water glass 8% ~ 10%
Water 10% ~ 20%;
Wherein, the particle diameter of perlite particle is 30 ~ 50 microns, and the particle diameter of ceramic particle is 50 ~ 80 microns;
Layer of polyurethane is formed by following mixing of materials foaming, is specially:
Polyether glycol 20% ~ 30%
Polyester polyol 20% ~ 30%
Pentamethylene 5% ~ 8%
Isocyanic ester 40% ~ 50%.
Wherein, described upper expanded pearlite rock stratum and described lower expanded pearlite rock stratum include the material of following component respectively, are specially:
Perlite particle 35%
Ceramic particle 25%
Water glass 15%
Water glass 10%
Water 15%.
Wherein, described layer of polyurethane is formed by following mixing of materials foaming, is specially:
Polyether glycol 25%
Polyester polyol 25%
Pentamethylene 5%
Isocyanic ester 45%.
Beneficial effect of the present invention is: the compound heat-insulation Rotating fields of a kind of refrigerator of the present invention, refrigerator-freezer, its by expanded pearlite rock stratum on, a layer of polyurethane and once expanded pearlite rock stratum form, upper expanded pearlite rock stratum, layer of polyurethane and lower expanded pearlite rock stratum stack gradually from top to bottom to be arranged and bonding by glue successively; Upper expanded pearlite rock stratum and lower expanded pearlite rock stratum include the material of following component respectively, be specially: 30% ~ 40% perlite particle, 20% ~ 30% ceramic particle, 10% ~ 20% water glass, 8% ~ 10% water glass, 10% ~ 20% water, wherein, the particle diameter of perlite particle is 30 ~ 50 microns, and the particle diameter of ceramic particle is 50 ~ 80 microns; Layer of polyurethane is formed by following mixing of materials foaming, is specially: 20% ~ 30% polyether glycol, 20% ~ 30% polyester polyol, 5% ~ 8% pentamethylene, 40% ~ 50% isocyanic ester.The compound heat-insulation Rotating fields of this refrigerator, refrigerator-freezer adopts sandwich structure form, be compound in together by upper expanded pearlite rock stratum, layer of polyurethane and three, lower expanded pearlite rock stratum thermofin, upper expanded pearlite rock stratum and lower expanded pearlite rock stratum effectively can strengthen bulk strength and can play good soundproof effect, compared to single layer of polyurethane, overall performance is effectively strengthened.
Accompanying drawing explanation
Utilize accompanying drawing to be further detailed the present invention below, but the embodiment in accompanying drawing does not form any limitation of the invention.
Fig. 1 is structural representation of the present invention.
Include in FIG:
1---upper expanded pearlite rock stratum
2---layer of polyurethane
3---lower expanded pearlite rock stratum.
Embodiment
Below in conjunction with concrete embodiment, the present invention will be described.
Embodiment one, as shown in Figure 1, the compound heat-insulation Rotating fields of a kind of refrigerator, refrigerator-freezer, by expanded pearlite rock stratum 1, layer of polyurethane 2 on one and once expanded pearlite rock stratum 3 form, upper expanded pearlite rock stratum 1, layer of polyurethane 2 and lower expanded pearlite rock stratum 3 stack gradually from top to bottom to be arranged and bonding by glue successively;
Upper expanded pearlite rock stratum 1 and lower expanded pearlite rock stratum 3 include the material of following component respectively, are specially:
Perlite particle 35%
Ceramic particle 25%
Water glass 15%
Water glass 10%
Water 15%;
Wherein, the particle diameter of perlite particle is 30 ~ 50 microns, and the particle diameter of ceramic particle is 50 ~ 80 microns;
Layer of polyurethane 2 forms respectively by following mixing of materials foaming, is specially:
Polyether glycol 25%
Polyester polyol 25%
Pentamethylene 5%
Isocyanic ester 45%.
The refrigerator of the present embodiment one, the compound heat-insulation Rotating fields of refrigerator-freezer adopt sandwich structure form, be compound in together by upper expanded pearlite rock stratum 1, layer of polyurethane 2 and 3 three, lower expanded pearlite rock stratum thermofin, upper expanded pearlite rock stratum 1 and lower expanded pearlite rock stratum 3 effectively can strengthen bulk strength and can play good soundproof effect, compared to single expanded pearlite rock stratum, overall performance is effectively strengthened.
Embodiment two, the compound heat-insulation Rotating fields of a kind of refrigerator, refrigerator-freezer, by expanded pearlite rock stratum 1, layer of polyurethane 2 on one and once expanded pearlite rock stratum 3 form, upper expanded pearlite rock stratum 1, layer of polyurethane 2 and lower expanded pearlite rock stratum 3 stack gradually from top to bottom to be arranged and bonding by glue successively;
Upper expanded pearlite rock stratum 1 and lower expanded pearlite rock stratum 3 include the material of following component respectively, are specially:
Perlite particle 40%
Ceramic particle 20%
Water glass 12%
Water glass 8%
Water 20%;
Wherein, the particle diameter of perlite particle is 30 ~ 50 microns, and the particle diameter of ceramic particle is 50 ~ 80 microns;
Layer of polyurethane 2 is formed by following mixing of materials foaming, is specially:
Polyether glycol 24%
Polyester polyol 24%
Pentamethylene 8%
Isocyanic ester 44%.
The refrigerator of the present embodiment two, the compound heat-insulation Rotating fields of refrigerator-freezer adopt sandwich structure form, be compound in together by upper expanded pearlite rock stratum 1, layer of polyurethane 2 and 3 three, lower expanded pearlite rock stratum thermofin, upper expanded pearlite rock stratum 1 and lower expanded pearlite rock stratum 3 effectively can strengthen bulk strength and can play good soundproof effect, compared to single expanded pearlite rock stratum, overall performance is effectively strengthened.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (3)
1. the compound heat-insulation Rotating fields of a refrigerator, refrigerator-freezer, it is characterized in that, by expanded pearlite rock stratum (1) on, a layer of polyurethane (2) and once expanded pearlite rock stratum (3) form, upper expanded pearlite rock stratum (1), layer of polyurethane (2) and lower expanded pearlite rock stratum (3) stack gradually from top to bottom to be arranged and bonding by glue successively;
Upper expanded pearlite rock stratum (1) and lower expanded pearlite rock stratum (3) include the material of following component respectively, are specially:
Perlite particle 30% ~ 40%
Ceramic particle 20% ~ 30%
Water glass 10% ~ 20%
Water glass 8% ~ 10%
Water 10% ~ 20%;
Wherein, the particle diameter of perlite particle is 30 ~ 50 microns, and the particle diameter of ceramic particle is 50 ~ 80 microns;
Layer of polyurethane (2) is formed by following mixing of materials foaming, is specially:
Polyether glycol 20% ~ 30%
Polyester polyol 20% ~ 30%
Pentamethylene 5% ~ 8%
Isocyanic ester 40% ~ 50%.
2. the compound heat-insulation Rotating fields of a kind of refrigerator according to claim 1, refrigerator-freezer, is characterized in that, described upper expanded pearlite rock stratum (1) and described lower expanded pearlite rock stratum (3) include the material of following component respectively, are specially:
Perlite particle 35%
Ceramic particle 25%
Water glass 15%
Water glass 10%
Water 15%.
3. the compound heat-insulation Rotating fields of a kind of refrigerator according to claim 2, refrigerator-freezer, is characterized in that, described layer of polyurethane (2) is formed by following mixing of materials foaming, is specially:
Polyether glycol 25%
Polyester polyol 25%
Pentamethylene 5%
Isocyanic ester 45%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294005.5A CN104291774A (en) | 2013-07-15 | 2013-07-15 | Composite thermal insulation layer structure for refrigerators and freezers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294005.5A CN104291774A (en) | 2013-07-15 | 2013-07-15 | Composite thermal insulation layer structure for refrigerators and freezers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104291774A true CN104291774A (en) | 2015-01-21 |
Family
ID=52311767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310294005.5A Pending CN104291774A (en) | 2013-07-15 | 2013-07-15 | Composite thermal insulation layer structure for refrigerators and freezers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104291774A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04320784A (en) * | 1991-04-18 | 1992-11-11 | Sanyo Electric Co Ltd | Insulation structural body |
| CN1247923A (en) * | 1999-08-31 | 2000-03-22 | 徐家庆 | Light heat-insulating roofing board and its manufacture |
| CN1659402A (en) * | 2002-05-31 | 2005-08-24 | 松下冷机株式会社 | Vacuum thermal insulating material, process for producing the same and refrigerator including the same |
| WO2011093227A1 (en) * | 2010-01-28 | 2011-08-04 | 大阪瓦斯株式会社 | Low-temperature tank |
| CN103159451A (en) * | 2013-03-04 | 2013-06-19 | 江苏康绿尔节能科技有限公司 | Preparation method of fireproof flame retardation warming plate used for exterior wall of building |
-
2013
- 2013-07-15 CN CN201310294005.5A patent/CN104291774A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04320784A (en) * | 1991-04-18 | 1992-11-11 | Sanyo Electric Co Ltd | Insulation structural body |
| CN1247923A (en) * | 1999-08-31 | 2000-03-22 | 徐家庆 | Light heat-insulating roofing board and its manufacture |
| CN1659402A (en) * | 2002-05-31 | 2005-08-24 | 松下冷机株式会社 | Vacuum thermal insulating material, process for producing the same and refrigerator including the same |
| WO2011093227A1 (en) * | 2010-01-28 | 2011-08-04 | 大阪瓦斯株式会社 | Low-temperature tank |
| CN103159451A (en) * | 2013-03-04 | 2013-06-19 | 江苏康绿尔节能科技有限公司 | Preparation method of fireproof flame retardation warming plate used for exterior wall of building |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |