JPH0424492A - Heat exchanger element - Google Patents

Abstract

PURPOSE:To obtain a heat exchanger element, in which air is hardly leaked, heat transfer areas can be taken widely and which is inexpensive in manufacturing, by a method wherein reverse-truncated fin-type ribs are provided on the surface of a flat plate type sheet with a predetermined interval while the same ribs are arranged on the rear surface of the sheet so as to be intersected with the ribs on the front surface of the sheet. CONSTITUTION:An unit member 4 is formed by a method wherein reverse-truncated fin-type ribs 3 are arranged on both surfaces of a flat plate type paper sheet 2, which transfers a temperature and a humidity to the other air stream, so as to be integrated in a form that the ribs on the front surface of the sheet 2 are intersected mutually with the ribs on the rear surface of the sheet 2 while a plurality of layers of the unit members 4 are laminated and bonded in the form that the ribs 3 are superposed in parallel to each other so that the flow passage 5 of a first air stream A and the flow passage 6 of a second air stream B are formed. Upon laminating the unit members 4, bonding can be effected employing the surfaces of the ribs 3, which are wider in the width thereof, whereby bonding force can be improved and the leakage of air can be prevented. On the other hand, the width of the rib near the sheet 2 becomes narrower whereby the effective heat transfer area of the sheet 2 is increased and the amount of used material for the rib 3 can be reduced.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、換気時の熱ロスを低減させる熱交換素子に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat exchange element that reduces heat loss during ventilation.

従来の技術 近年、換気装置において、省エネ性、快適性の面から熱
交換素子を組み込んだものが設置されているが、装置の
設置場所が狭くなってきており、小型、薄型の要望が高
（、これに対応して圧力損失が低（、小型の熱交換素子
が提案されている。Conventional technology In recent years, ventilation systems incorporating heat exchange elements have been installed for energy saving and comfort reasons, but as the installation space for the equipment has become narrower, there has been a high demand for smaller and thinner devices ( , Compact heat exchange elements with correspondingly low pressure loss have been proposed.

従来この種の熱交換素子の構成について、第３図および
第４図を参照しながら説明する。図に示すように、伝熱
性と透湿性、あるいは伝熱性のみを有する平板状のシー
ト１０１の片面に断面が直方形状のリブ１０２を所定の
間隔をおいて列状に配設した単位部材１０３を交互に複
数層積層して熱交換素子１０４を構成していた。このよ
うにして形成された熱交換素子１０４の眉間の一つ置き
に一次気流Ａを流し、他の層間には二次気流Ｂを通すこ
とによって、シート１０１を通して温度と湿度、あるい
は温度のみの交換を行い、換気による熱ロスを低減させ
ていた。（たとえば特公昭６１１８６７９５号）。The structure of a conventional heat exchange element of this type will be explained with reference to FIGS. 3 and 4. As shown in the figure, a unit member 103 has ribs 102 with a rectangular cross section arranged in rows at predetermined intervals on one side of a flat sheet 101 having heat conductivity and moisture permeability, or only heat conductivity. The heat exchange element 104 was constructed by laminating a plurality of layers alternately. By passing the primary airflow A between every other glabella of the heat exchange element 104 formed in this way, and passing the secondary airflow B between the other layers, temperature and humidity or only temperature can be exchanged through the sheet 101. This was done to reduce heat loss due to ventilation. (For example, Special Publication No. 61186795).

発明が解決しようとする課題 このような従来の熱交換素子１０４の構成では、単位部
材１０３を複数層積層する際、隣の段のシート１０１と
リブ１０２との接着に際し、接着力を強くして空気の漏
れを防止しようとすれば、リブ１０２の幅を広（する必
要があり、材料費の増加とともに、シート１０１におけ
る有効な伝熱面積の減少をきたすという課題があった。Problems to be Solved by the Invention In such a conventional configuration of the heat exchange element 104, when a plurality of unit members 103 are laminated, the adhesion between the sheet 101 and the rib 102 on the adjacent stage is strengthened. In order to prevent air leakage, it is necessary to increase the width of the ribs 102, which poses the problem of increasing material costs and reducing the effective heat transfer area of the sheet 101.

本発明は上記課題を解決するもので、空気漏れがしに＜
＜、伝熱面積が広くとれ、がっ安価な熱交換素子を提供
することを目的とするものである。The present invention solves the above problems and prevents air leakage.
The purpose of this invention is to provide a heat exchange element that has a large heat transfer area and is inexpensive.

課題を解決するための手段 本発明は上記目的を達成するために、伝熱性と透湿性、
あるいは伝熱性のみを有する平板状のシートの表面に、
−吹気流が流通する平行流路を構成するための逆台形の
フィン状のリブを所定の間隔をおいて設け、かつ前記シ
ートの裏面にも同様のリブを前記表面のリブに対し交差
するように配置し、二次気流が流通する平行流路を構成
した単位部材を前記リブどうしが平行に重なるように積
層して構成したものである。Means for Solving the Problems In order to achieve the above objects, the present invention provides heat conductivity, moisture permeability,
Or, on the surface of a flat sheet that only has heat conductivity,
- Inverted trapezoidal fin-shaped ribs are provided at predetermined intervals to form parallel flow paths through which the blow air flows, and similar ribs are provided on the back surface of the sheet so as to intersect with the ribs on the front surface. It is constructed by stacking unit members arranged in parallel flow paths through which secondary airflow flows so that the ribs are overlapped in parallel.

作　　　用 本発明は上記構成により、単位部材を積層する際、リブ
の幅が広い面を用いて接着することができるので、接着
力が向上し、空気の漏れが防止できることとなる。また
、シート付近のリブは幅が狭くなるので、シートの有効
な伝熱面積が増加するとともに、リブの材料の使用量も
減少することとなる。Effects According to the above-described configuration, the present invention allows bonding using the wide surfaces of the ribs when stacking unit members, thereby improving adhesive strength and preventing air leakage. Also, since the ribs near the seat are narrower, the effective heat transfer area of the seat increases and the amount of material used for the ribs decreases.

実施例 以下、本発明の一実施例について第１図および第２図を
参照しながら説明する。図に示すように、直交流型の熱
交換素子１は、温度と湿度を他の気流に伝える平板状の
紙製のシート２の両面に、逆台形のフィン状のリブ３が
前記シート２の表面と裏面において互いに交差する形で
一体に成形された単位部材４を形成し、第１気流Ａの流
路５および第２気流Ｂの流路６が形成されるように、リ
ブ３どうじが平行に重なる形で、単位部材４を複数層積
層接着して構成する。EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2. As shown in the figure, a cross-flow type heat exchange element 1 has inverted trapezoidal fin-like ribs 3 on both sides of a flat paper sheet 2 that transmits temperature and humidity to other airflows. A unit member 4 is integrally formed so as to cross each other on the front and back surfaces, and the ribs 3 are parallel to each other so that a flow path 5 for the first air flow A and a flow path 6 for the second air flow B are formed. It is constructed by laminating and bonding a plurality of unit members 4 in such a manner that they overlap.

上記構成において動作を説明すると、送風機（図示せず
）により送風される一次気流Ａは、前記熱交換素子１の
シート２とリブ３によって形成される流路５を通り室内
に給気される。一方、二次気流Ｂは前記流路５と直交す
る流路６を通り室外へ排出される。これらの過程におい
て、シート２を介して、−吹気流Ａと二次気流Ｂの間で
温度および湿度の交換が行われる。ここで、リブ３はシ
ート２の近くでは幅が狭（なっているので、シート３の
伝熱面はリブ３によって減少されられることが少な（な
り、有効伝熱面積が大きくとれるとともに、リブ３を構
成する樹脂材料を少量で済ますことができる。また、リ
ブ３は、シート２から離れた互いの接着面においては、
幅広く形成されているので、接着面積が大きく接着強度
が増加しており、空気の漏れが防止できる。To explain the operation of the above configuration, the primary airflow A blown by a blower (not shown) passes through the flow path 5 formed by the sheet 2 and the ribs 3 of the heat exchange element 1 and is supplied into the room. On the other hand, the secondary airflow B passes through a flow path 6 orthogonal to the flow path 5 and is discharged to the outside. In these processes, an exchange of temperature and humidity takes place between the blow air stream A and the secondary air stream B via the sheet 2. Here, since the width of the rib 3 is narrow near the sheet 2, the heat transfer surface of the sheet 3 is less likely to be reduced by the rib 3. Only a small amount of resin material is needed for forming the ribs 3.Furthermore, the ribs 3 have a bonding surface that is away from the sheet 2.
Since it is formed wide, the bonding area is large and the bonding strength is increased, and air leakage can be prevented.

なお、実施例ではシートとして伝熱性と透湿性を有する
材料で説明を行ったが、伝熱性のみを有する材料でも良
く、また、熱交換素子のシート形状として正方形のもの
で説明を行ったが、長方形、菱形でも良いことはいうま
でもない。In addition, although the examples have been explained using a material that has heat conductivity and moisture permeability as a sheet, it is also possible to use a material that has only heat conductivity, and the sheet shape of the heat exchange element has been described as a square sheet. It goes without saying that a rectangle or a diamond shape is also fine.

発明の効果 以上の実施例の説明で明らかなように、本発明によれば
熱交換を行うシートの両面に設けた流路を構成するため
のリブが、逆台形であるので、シートの伝熱面積が大き
くなり熱交換率が良好となるとともに、リブの材料が少
なくて済み、安価な熱交換素子が得られるとともに、リ
ブ間の接着面積が広くなり接着性が良くなって空気の漏
れを防止できる効果がある熱交換素子を提供できる。Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, the ribs forming the flow paths provided on both sides of the sheet for heat exchange are inverted trapezoidal, so that the heat transfer of the sheet is improved. The area is larger, which improves the heat exchange rate, requires less material for the ribs, resulting in a cheaper heat exchange element, and the adhesive area between the ribs is larger, improving adhesiveness and preventing air leakage. It is possible to provide a heat exchange element that has the following effects.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例を示す熱交換素子の一部破断
斜視図、第２図は同熱交換素子の単位部材の斜視図、第
３図は従来の熱交換素子の一部破断斜視図、第４図は同
熱交換素子の単位部材の斜視図である。 １・・・・・・熱交換素子、２・・・・・・シート、３
・・・・・・リブ。 代理人の氏名　弁理士　粟野重孝　はか１名２−−−シ
ー１ クー−−リブ 第 図Fig. 1 is a partially cutaway perspective view of a heat exchange element showing an embodiment of the present invention, Fig. 2 is a perspective view of a unit member of the same heat exchange element, and Fig. 3 is a partially cutaway view of a conventional heat exchange element. FIG. 4 is a perspective view of a unit member of the heat exchange element. 1...Heat exchange element, 2...Sheet, 3
······rib. Name of agent Patent attorney Shigetaka Awano

Claims (1)

【特許請求の範囲】[Claims] 伝熱性と透湿性、あるいは伝熱性のみを有する平板状の
シートと、このシートの表面に、一次気流が流通する平
行流路を形成するための逆台形のフィン状のリブを所定
の間隔をおいて設け、かつ前記シートの裏面にも同形状
のリブを、前記表面のリブに対し交差して設け、二次気
流が流通する平行流路を形成した単位部材を前記リブど
うしが平行に重なるように積層して構成した熱交換素子
。A flat sheet that has heat conductivity and moisture permeability, or only heat conductivity, and inverted trapezoidal fin-like ribs placed at predetermined intervals on the surface of this sheet to form parallel flow paths through which primary airflow flows. and ribs of the same shape are provided on the back side of the sheet so as to intersect with the ribs on the front surface, and a unit member forming a parallel flow path through which the secondary airflow flows is arranged such that the ribs are overlapped in parallel with each other. A heat exchange element constructed by laminating layers.