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Paper for total heat exchanging element and total heat exchanging element

A technology of full heat exchange and components, applied in heat exchange equipment, heat exchange materials, paper, etc., can solve the problems of reduced energy saving effect, achieve the effects of increased yield, improved fibrillation rate, and improved gas barrier properties

Pending Publication Date: 2020-11-24
MITSUBISHI PAPER MILLS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the Revised Building Standards Law implemented in Japan in 2003, in principle, there is an obligation to install mechanical ventilation equipment for residential buildings, but heat energy will be released to the outside, and the energy-saving effect as the original purpose will be reduced.

Method used

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  • Paper for total heat exchanging element and total heat exchanging element
  • Paper for total heat exchanging element and total heat exchanging element
  • Paper for total heat exchanging element and total heat exchanging element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1－1

[0073] After dissociating conifer bleached kraft pulp (NBKP) at a concentration of 4.5% (weight ratio), use a double-action disc refiner to beat, and use a fourdrinier paper machine to produce a basis weight of 30g / m 2 base paper, so that the density of the base paper is 0.82g / cm 3 by means of mechanical calendering. Add lithium chloride 4.9g / m as a hygroscopic agent to the base paper using an impregnation processing machine 2 , to obtain paper for total heat exchange elements. The fines ratio of the beaten wood pulp was 18%.

Embodiment 1－2

[0075] After dissociating conifer bleached kraft pulp (NBKP) with a concentration of 4.5%, it is beaten with a double-moving disc refiner, and a basis weight of 20g / m is produced using a Fourdrinier paper machine. 2 base paper, so that the density of the base paper is 0.79g / cm 3 by means of mechanical calendering. Add lithium chloride 4.0g / m as a hygroscopic agent to the base paper using an impregnation processing machine 2 , to obtain paper for total heat exchange elements. The fines ratio of the beaten wood pulp was 20%.

Embodiment 1－3

[0077] After dissociating conifer bleached kraft pulp (NBKP) with a concentration of 4.5%, it is beaten with a double-moving disc refiner, and a basis weight of 40g / m is produced using a Fourdrinier paper machine. 2 base paper so that the density of the base paper is 0.90g / cm 3 by means of mechanical calendering. Adding 5.8 g / m of guanidine sulfamate as a flame retardant to base paper using an impregnation processing machine 2 , and then, give lithium chloride as a hygroscopic agent 4.2g / m 2 , to obtain paper for total heat exchange elements. The fines ratio of the beaten wood pulp was 17%.

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Abstract

The purpose of the present invention is to provide a paper for a total heat exchanging element, wherein the paper has both heat transferability and moisture permeability while also having excellent gas barrier properties. The present invention relates to a paper for a total heat exchanging element, comprising a beaten natural pulp-containing base paper and a moisture-absorbing agent applied to thebase paper, wherein the proportion of a fine fraction having a fiber length of equal to or less than 0.05 mm in the beaten natural pulp is 10 to 25%.

Description

technical field [0001] The invention relates to paper for a total heat exchange element and the total heat exchange element. Background technique [0002] In recent years, with the promotion of higher airtightness and higher heat insulation of houses for energy saving, it has been pointed out that there is a health effect called sick house syndrome caused by indoor air pollution. This problem can be said to be the result of the release of chemical substances from building materials, etc., and the release of pollutants such as carbon monoxide, carbon dioxide, and nitrogen oxides from combustion equipment, and the increase in indoor air pollution. In addition, when the humidity is high, bacteria, mold, and mites multiply, and when the humidity is low, the increase of suspended dust and the proliferation of viruses such as influenza tend to occur, which can cause health effects such as allergies. [0003] According to the Revised Building Standards Law implemented in Japan in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F21/00D21H27/00
CPCF28F21/00D21H27/00C09K5/14F28D21/0015F28D9/0062D21H11/04D21H17/11D21H19/12D21H17/63D21H17/66D21H21/22
Inventor 滨崎善幸
Owner MITSUBISHI PAPER MILLS LTD
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