Air cushion heat insulation anti-convection layer and preparation method thereof

A troposphere and air cushion technology, applied in heat exchange equipment, chemical instruments and methods, and protection of pipelines through thermal insulation, etc., can solve the problems of imperfect technological process, inconvenient construction, and inconspicuous effect of air cushion thermal insulation against troposphere thermal insulation.

Pending Publication Date: 2021-07-30
南京苏夏设计集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an air-cushion heat-insulating anti-draft layer and a preparation method thereof, in order to solve the problem that the air-cushion heat-insulation anti-draft layer in the prior art has no obvious thermal insulation effect, unsatisfactory impact resistance, waterproof, and unsatisfactory service life, imperfect technological process and inconvenient construction. The problem

Method used

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  • Air cushion heat insulation anti-convection layer and preparation method thereof
  • Air cushion heat insulation anti-convection layer and preparation method thereof
  • Air cushion heat insulation anti-convection layer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0050] Such as Figure 1-8 Shown, a kind of air cushion heat insulation anti-drain layer, comprises from inside to outside including aluminum foil reflective layer I1, polyethylene air bubble film layer I2, polyethylene air bubble film layer II3, polyethylene air bubble film layer III4 and aluminum foil reflective layer II5; Both the aluminum foil reflective layer I1 and the aluminum foil reflective layer II5 are aluminum foil reflective layers, and the aluminum foil reflective layer is successively aluminum foil 101, polyethylene terephthalate film 102 and chlorinated polyethylene film 103 from outside to inside; The aluminum foil 101 and the polyethylene terephthalate film 102 , and the polyethylene terephthalate film 102 and the chlorinated polyethylene film 103 are bonded by a flame retardant adhesive layer 104 .

[0051] The thickness of the aluminum foil 101 is 6.5-7 μm, the thickness of the polyethylene terephthalate film 102 is 12 μm, the thickness of the chlorinated p...

Embodiment 2

[0055] A method for preparing an air cushion heat-insulating anti-draft layer, comprising the following steps:

[0056] S1. Preparation of aluminum foil reflective layer:

[0057] S101, dispensing glue: the mass concentration ratio of polyurethane glue and solvent ethyl acetate is 1:1.5, first pour the polyurethane glue into the glue dispensing bucket 9, and then add the ethyl acetate solvent while stirring to dilute;

[0058] S102, roll-up film penetration: put the aluminum foil 101 to be glued, the polyethylene terephthalate film 102 and the chlorinated polyethylene film 103 on the unwinding reel I6, unwinding reel II7 and unwinding reel III8 respectively, adjust The tension of each unwinding shaft ensures that aluminum foil 101, polyethylene terephthalate film 102 and chlorinated polyethylene film 103 are released stably and evenly by guide roller 10;

[0059] S103. Gluing: adjust the air pressure of the rotating arm of the compound machine, the air pressure of the scraper...

Embodiment 3

[0080] Example 3, such as Figure 9 As shown, that is, the structure of the aluminum foil reflective layer I1 or the aluminum foil reflective layer II5 in the prior art, the aluminum foil reflective layer I1 or the aluminum foil reflective layer II5 are successively polyethylene terephthalate film 102, aluminum foil 101. Chlorinated polyethylene film 103, the measured thermal conductivity of the aluminum foil reflective layer I1 or aluminum foil reflective layer II5 is 0.0407 W / m·K.

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Abstract

The invention discloses an air cushion heat insulation anti-convection layer. The air cushion heat insulation anti-convection layer comprises an aluminum foil reflecting layer I, a polyethylene bubble film layer I, a polyethylene bubble film layer II, a polyethylene bubble film layer III and an aluminum foil reflecting layer II from inside to outside, wherein the aluminum foil reflecting layer I or the aluminum foil reflecting layer II comprises aluminum foil, a polyethylene glycol terephthalate film and a chlorinated polyethylene film, from outside to inside, the aluminum foil is arranged on the outermost layer, the polyethylene glycol terephthalate film is arranged on the second layer, and the chlorinated polyethylene film is arranged on the innermost layer. The air cushion heat insulation anti-convection layer is good in moisture resistance, water resistance and impact resistance and long in service life, when heat is in contact with the aluminum foil reflecting layers, due to the high reflectivity, small heat radiation absorption and little heat transmitted by a middle air layer, conduction, radiation and convection heat dissipation of a heat supply network pipeline can be effectively achieved, and a very good heat insulation effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation of steam heat pipes, and in particular relates to an air cushion heat-insulating counterflow layer and a preparation method thereof. Background technique [0002] At present, the thermal insulation materials used in the domestic heating network industry generally have problems such as poor heat insulation and thermal insulation performance, and short service life. According to calculations, the transmission efficiency of my country's heating network is only about 67%, which is far from the national energy-saving standard of 90%. , the pipe network transmission efficiency is low. The heat loss of the heating network is mainly caused by inadequate thermal insulation engineering measures. If thermal insulation measures are taken for thermal equipment and thermal pipelines, the heat loss can be reduced by 80% to 90%. On the contrary, if the pipeline is not insulated, the fluid will continue...

Claims

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Application Information

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IPC IPC(8): F16L59/02F16L59/08F16L59/06B32B27/32B32B27/08B32B27/30B32B27/36B32B15/20B32B15/09B32B3/26B32B7/12B32B37/12B32B37/06B32B37/10B32B38/16B32B38/00B32B37/08B29C65/48B29C65/02B29C48/08
CPCF16L59/029F16L59/028F16L59/08F16L59/06B32B27/32B32B27/08B32B27/304B32B27/36B32B15/20B32B15/09B32B3/26B32B7/12B32B37/1284B32B37/06B32B37/10B32B38/164B32B38/0036B32B37/08B29C65/48B29C65/02B29C66/45B29C48/08B32B2307/304B32B2307/558B32B2307/7246B32B2307/7265B32B2307/56
Inventor 王国兴是金芳温成周建忠薛瑞方
Owner 南京苏夏设计集团股份有限公司
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