Vacuum heat-insulating material and manufacturing method thereof

A technology of vacuum thermal insulation material and manufacturing method, which is applied in chemical instruments and methods, heat exchange equipment, and pipeline protection through thermal insulation, etc. Portability effect

Inactive Publication Date: 2009-07-22
HITACHI APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In either case, the inorganic fiber polymer without binder has a large volume but a small mass, so the cost of recycling and handling is relatively high, resulting in a large cost burden

Method used

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  • Vacuum heat-insulating material and manufacturing method thereof
  • Vacuum heat-insulating material and manufacturing method thereof
  • Vacuum heat-insulating material and manufacturing method thereof

Examples

Experimental program
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no. 1 approach

[0039] use figure 1 ˜ FIG. 5 illustrate the vacuum heat insulating material and its manufacturing method according to the first embodiment of the present invention. First, refer to figure 1 The structure of the vacuum heat insulating material 20 according to this embodiment will be described simultaneously. figure 1 It is a cross-sectional view of the vacuum insulation material 20 according to the first embodiment of the present invention.

[0040] The vacuum heat insulating material 20 includes a core material 10a, and an airtight outer covering material 1 that stores the core material 10a, depressurizes the inside, welds the peripheral portion and seals it. The vacuum heat insulating material is constituted by a flat rectangular plate.

[0041] This core material 10a is a laminated body in which a plurality of heat insulators are stacked, and consists of a first core material (hereinafter referred to as "insulator a") 3a which is cut into a plurality to make the laminated...

no. 2 approach

[0075] The heat insulator a3a is provided on at least one side to maintain the shape, and the heat insulator a3a is wrapped with the inner covering material a2a to spread the inorganic fiber aggregates of a plurality of cut off pieces 4 so as to make the laminate into a required size. The core material 10b is formed as follows: it is composed of a laminated body in which the ratio of the thermal insulator a3a relative to the whole is 50% by weight, and the thermal insulator b3b composed of an inorganic fiber aggregate not containing a binder, together with the inner covering material b2b Both sides are covered to form the core material 10b.

[0076] Regarding this second embodiment, using Figure 8 Be explained. Figure 8 It is a perspective view of the core material 10b assembled and used in the vacuum heat insulating material 20 of 2nd Embodiment of this invention. This second embodiment is different from the first embodiment in the points described next, and since the oth...

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Abstract

The present invention provides a vacuum insulation material that can improve the transportability of a core material, reduce electric and thermal energy during production, and realize cost reduction by reusing scraps that do not contain a binder, and a manufacturing method thereof. The vacuum insulation material (20) is a vacuum insulation material in which a core material (10a) composed of a fiber polymer is stored in an airtight outer covering material (1). The core material is a laminated body of a plurality of thermal insulators. , consisting of a plurality of thermal insulators (ba) cut into multiple pieces in order to make the laminated body into a required size, and one or more thermal insulators (ba3a) cut into multiple pieces and arranged on at least one side surface to maintain the shape. The thermal insulator is constituted by laminating an inner covering material (ab2a) that covers the core material and an inner covering material (ab2b) that covers the entire core material by laminating an insulator made of a fiber aggregate that does not contain a binder. The outer coating material (1) containing the inner coating material is decompressed and brought into a vacuum state.

Description

technical field [0001] The present invention relates to a vacuum heat insulating material and a manufacturing method thereof, and is particularly suitable for a vacuum heat insulating material using scraps and a recycling manufacturing method thereof. Background technique [0002] In recent years, from the viewpoint of energy saving, the recycling of end-of-life home appliances such as refrigerators and televisions has become an extremely important issue, and various cooperations have been made concerning the disposal of industrial waste and the recycling of its constituent materials. . In addition, from the importance of preventing global warming as a global environmental problem, energy saving is desired. For example, in relation to refrigerators, from the viewpoint of effective use of refrigeration, heat insulating materials with excellent heat insulating properties are required. The current situation is related to the development of vacuum heat insulating materials. And...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L59/02F16L59/06
CPCF16L59/065B32B5/26B32B27/12B32B27/32B32B2307/304F16L59/02
Inventor 三关隆久保田刚高桥厚美越后屋恒
Owner HITACHI APPLIANCES INC
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