JP2006284021A - Ventilation type heat exchanger and ventilation type heat exchanger unit - Google Patents

Ventilation type heat exchanger and ventilation type heat exchanger unit Download PDF

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JP2006284021A
JP2006284021A JP2005101535A JP2005101535A JP2006284021A JP 2006284021 A JP2006284021 A JP 2006284021A JP 2005101535 A JP2005101535 A JP 2005101535A JP 2005101535 A JP2005101535 A JP 2005101535A JP 2006284021 A JP2006284021 A JP 2006284021A
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heat exchange
heat exchanger
air
heat
ventilated
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Takuji Ando
卓史 安藤
Nobuyuki Tono
伸幸 東野
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Nitta Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact ventilation type heat exchanger or its unit of simple structure and comparatively small volume. <P>SOLUTION: This ventilation type heat exchanger comprises a heat exchanging element 1 having a plurality of heat exchange flow channels 11 extending in the common direction, a bidirectional air blowing means 2 capable of blowing the air in both of indoor direction i and outdoor direction o to the heat exchange flow channel 11, and a switching means 3 for switching the air blowing direction of the bidirectional air blowing means 2. This ventilation type heat exchanger further comprises a heat insulating chamber 4 covering the heat exchanging element 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、顕熱或いは潜熱交換を行なう換気式熱交換器に関するものである。   The present invention relates to a ventilated heat exchanger that performs sensible heat or latent heat exchange.

従来、静止型の熱交換器の他に、回転型の熱交換素子が存在する(例えば、特許文献1参照)。   Conventionally, in addition to a stationary heat exchanger, there is a rotary heat exchange element (see, for example, Patent Document 1).

静止型の熱交換器は、熱交換素子が熱交換膜を介してその表裏を流通する空気の熱交換を間接的に行うものである。例えば、並行流路を有する薄板状の各層が、流路が平面視にて一層ごとに交差するように、かつ層間に熱交換膜を介して積層されてなる熱交換素子を具備し、熱交換膜で仕切られた各層の流路内に、内空気と外空気それぞれを各層交互に同時流通させることで熱交換するものである。内気が流通する内気用流路と、外気が流通する外気用流路とが決まっており、熱交換膜を介してその表裏を流通する空気の熱交換を間接的に行うものであるため、熱交換効率の向上には限界がある。   The static heat exchanger indirectly exchanges heat between air flowing through the heat exchange element through the heat exchange membrane. For example, each thin plate-like layer having parallel flow paths includes a heat exchange element in which the flow paths intersect one layer at a time in a plan view and are laminated with a heat exchange film between the layers, and heat exchange Heat exchange is performed by simultaneously circulating the inner air and the outer air in each layer alternately in the flow path of each layer partitioned by a membrane. Since the flow path for the inside air through which the inside air circulates and the flow path for the outside air through which the outside air circulates are determined, heat exchange of the air flowing through the front and back through the heat exchange membrane is indirectly performed. There is a limit to improving the exchange efficiency.

これに対して、回転型の熱交換素子は例えば、一方向を向く多数の流路が纏まって円柱状に構成された熱交換素子を具備し、その断面を二分するように、それぞれ外気と内気を上下に流通させる構造となっている。熱交換素子が軸回転することで、それぞれ双方向を向く室内気と室外気とが、熱交換流路内を交互に通過する。同一の流路が、内気が流通する内気用流路と、外気が流通する外気用流路とに時間的に変化するため、流路壁の吸着性によって、静止型熱交換器に比べて熱交換効率を確保しやすい。   On the other hand, a rotary heat exchange element includes, for example, a heat exchange element that is configured in a cylindrical shape with a large number of flow paths facing in one direction, and the outside air and the inside air are divided into two sections. It has a structure that distributes up and down. As the heat exchange element rotates, the indoor air and the outdoor air that are directed in both directions alternately pass through the heat exchange flow path. Since the same flow path changes in time into an internal air flow path through which the inside air flows and an external air flow path through which the external air flows, the heat is higher than the static heat exchanger due to the adsorptivity of the flow path walls. Easy to ensure replacement efficiency.

しかしながら回転型の熱交換素子は、回転機構やその制御システムによって、構造の複雑化や、容積の大型化といった問題があった。すなわち、回転動作による熱交換性能を確保すべく、多くの回転型熱交換素子は、円形の熱交換断面形状が採用されており、断面積の大型化を余儀なくされている。
特開平5−87477号公報
However, the rotary heat exchange element has problems such as a complicated structure and a large volume due to the rotation mechanism and its control system. That is, in order to ensure heat exchange performance by rotating operation, many rotary heat exchange elements have a circular heat exchange cross-sectional shape, which necessitates an increase in cross-sectional area.
Japanese Patent Laid-Open No. 5-87477

そこで本発明は、上記問題点に鑑み、構造が簡易で、容積が比較的小さくコンパクトな換気式熱交換器或いはそのユニットを提供することを課題とする。   In view of the above problems, an object of the present invention is to provide a ventilated heat exchanger having a simple structure, a relatively small volume, and a compact ventilation heat exchanger or a unit thereof.

(1)本発明の換気式熱交換器は、共通方向に伸びる複数の熱交換流路11を有する熱交換素子1と、この熱交換流路11内へ室内方向i及び室外方向oの双方向に送風しうる双方向送風手段2と、この双方向送風手段2の送風方向を切り替える切り替え手段3とを具備することを特徴とする。   (1) The ventilated heat exchanger according to the present invention includes a heat exchange element 1 having a plurality of heat exchange channels 11 extending in a common direction, and a bidirectional direction in the indoor direction i and the outdoor direction o into the heat exchange channel 11. It is characterized by comprising a bidirectional blowing means 2 capable of blowing air and a switching means 3 for switching the blowing direction of the bidirectional blowing means 2.

(2)前記換気式熱交換器において、熱交換素子1を覆う断熱チャンバー4を具備するものとすることが好ましい。   (2) The ventilating heat exchanger preferably includes a heat insulating chamber 4 that covers the heat exchange element 1.

かかる断熱チャンバー4によって、熱交換素子1の外部への熱放散が抑えられ、効率的な熱保持が可能となる。これによって、より熱交換性能のよいものとなる。   The heat insulation chamber 4 suppresses heat dissipation to the outside of the heat exchange element 1 and enables efficient heat retention. As a result, the heat exchange performance is improved.

(3)前記いずれかの換気式熱交換器において、熱交換素子1の表面温度を検知する素子表面温度センサ51と、熱交換素子1の熱交換流路11内或いはその付近の流体温度(熱交換素子1の熱交換流路11を流通する流体の温度)を検知する流体温度センサ52と、を具備すると共に、
前記切り替え手段3は、素子表面温度センサ51で検知した表面温度と、流体温度センサ52で検知した流体温度との温度差Δtに応じて送風方向の切り替え動作を行うものであることが好ましい。
(3) In any one of the ventilated heat exchangers, the element surface temperature sensor 51 that detects the surface temperature of the heat exchange element 1 and the fluid temperature (heat) in or near the heat exchange channel 11 of the heat exchange element 1 A fluid temperature sensor 52 for detecting the temperature of the fluid flowing through the heat exchange flow path 11 of the exchange element 1), and
It is preferable that the switching unit 3 performs a blowing direction switching operation according to a temperature difference Δt between the surface temperature detected by the element surface temperature sensor 51 and the fluid temperature detected by the fluid temperature sensor 52.

(4)或いは、本発明の換気式熱交換器ユニットとして、前記いずれか記載の第一の換気式熱交換器10Aと、同じく前記いずれか記載の第二の換気式熱交換器10Bとをそれぞれ同数台ずつ具備すると共に、第一の換気式熱交換器が具備する第一の切り替え手段3と、第二の換気式熱交換器が具備する第二の切り替え手段3とが連動して、各送風方向を互いに(室内方向i、室外方向oのいずれか)逆方向へ切り替えるものであることを特徴とする。   (4) Alternatively, as the ventilating heat exchanger unit of the present invention, the first ventilating heat exchanger 10A described above and the second ventilating heat exchanger 10B described above respectively, respectively. The first switching means 3 provided in the first ventilation heat exchanger and the second switching means 3 provided in the second ventilation heat exchanger are interlocked with each other, It is characterized in that the air blowing directions are switched in mutually opposite directions (either the indoor direction i or the outdoor direction o).

このようなものであれば、比較的コンパクトな構造をもって第三種換気が可能となる。   If this is the case, the third type ventilation is possible with a relatively compact structure.

上記手段によって、構造が簡易で、容積が比較的小さくコンパクトな換気式熱交換器或いはそのユニットを提供するものとなった。   By the above means, a ventilated heat exchanger or a unit thereof having a simple structure and a relatively small volume is provided.

以下、本発明を実施するための最良の形態を、各実施例として示す図面(図1ないし図4)と共に説明する。図1は、本発明の実施例1の換気式熱交換器の構造を説明する一部透視説明図である。図2ないし図4はそれぞれ、実施例2、3、4の換気式熱交換器の構成と運転を説明する簡略説明図で、それぞれ上図が給気運転時、下図が排気運転時を示す。なお、実施例5は、図2ないし図4の符号10A、10Bで示すように、各図それぞれ上図及び下図の換気式熱交換器を共に一台ずつ、或いは複数台ずつ備えた換気式熱交換ユニットである。   The best mode for carrying out the present invention will be described below with reference to the drawings (FIGS. 1 to 4) shown as embodiments. FIG. 1 is a partially transparent explanatory view illustrating the structure of a ventilated heat exchanger according to a first embodiment of the present invention. FIGS. 2 to 4 are simplified explanatory views for explaining the configuration and operation of the ventilation heat exchangers of Examples 2, 3, and 4, respectively. The upper diagram shows the air supply operation and the lower diagram shows the exhaust operation. In the fifth embodiment, as indicated by reference numerals 10A and 10B in FIGS. 2 to 4, each of the drawings is provided with one or a plurality of ventilated heat exchangers in the upper and lower figures. It is an exchange unit.

本発明の換気式熱交換器は、共通方向に伸びる複数の熱交換流路11を有する熱交換素子1と、この熱交換流路11内へ室内方向i及び室外方向oの双方向に送風しうる双方向送風手段2と、この双方向送風手段2の送風方向を切り替える切り替え手段3とを具備する。さらに、熱交換素子1を覆う断熱チャンバー4を具備するものが好ましい。また、熱交換素子1の表面温度を検知する素子表面温度センサ51と、熱交換素子1の熱交換流路11内或いはその付近の流体温度(熱交換素子1の熱交換流路11を流通する流体すなわち流通空気の温度)を検知する流体温度センサ52と、を具備する。この換気式熱交換器は、効率のよい熱交換を行いながら第一種換気と第二種換気を交互に行うものであり、実施例1、2、3および4として具体的態様が示される。   The ventilated heat exchanger according to the present invention blows air in the indoor direction i and the outdoor direction o into the heat exchange element 11 having a plurality of heat exchange channels 11 extending in a common direction. A bidirectional air blowing means 2 and a switching means 3 for switching the air blowing direction of the bidirectional air blowing means 2. Furthermore, what comprises the heat insulation chamber 4 which covers the heat exchange element 1 is preferable. Also, an element surface temperature sensor 51 that detects the surface temperature of the heat exchange element 1 and a fluid temperature in or near the heat exchange channel 11 of the heat exchange element 1 (circulates through the heat exchange channel 11 of the heat exchange element 1). And a fluid temperature sensor 52 that detects the temperature of the fluid, that is, the circulating air). This ventilated heat exchanger performs first-type ventilation and second-type ventilation alternately while performing efficient heat exchange, and specific embodiments are shown as Examples 1, 2, 3, and 4.

(熱交換素子1)
本発明の熱交換素子1は、全ての熱交換流路11内に外気と内気とを時間的に交互に流通させることで、熱交換膜を介して外気と内気を交流させ、もって外気及び内気の全熱(すなわち顕熱及び潜熱)交換或いは顕熱交換を行うものである。
(Heat exchange element 1)
The heat exchange element 1 of the present invention causes the outside air and the inside air to flow alternately through the heat exchange membrane by alternately flowing the outside air and the inside air through all of the heat exchange flow paths 11. The total heat (ie, sensible heat and latent heat) is exchanged or sensible heat exchange is performed.

熱交換素子1は、共通方向に伸びる複数の熱交換流路11を有する。この複数の熱交換流路11は、全ての一端が室内を向き、全ての他端が室外を向くようにして連設される。ダクトあるいは給排口(ベンドキャップ、ブリーズ)と、直接或いは間接的に連結される。実施例では、一方向の直線的な熱交換流路11を上下左右へ並設してなり、流路に垂直な断面視にて格子状の多数の流路孔が設けられている。   The heat exchange element 1 has a plurality of heat exchange channels 11 extending in a common direction. The plurality of heat exchange channels 11 are connected in series so that all one ends face the room and all other ends face the outside. It is directly or indirectly connected to a duct or a supply / discharge port (bend cap, breeze). In the embodiment, linear heat exchange channels 11 in one direction are arranged side by side in the vertical and horizontal directions, and a large number of grid-shaped channel holes are provided in a cross-sectional view perpendicular to the channels.

実施例の熱交換素子1は、それ自体が回転せず静止したまま熱交換を行なう静止型熱交換器である。また、外気と内気とを同時に流通させる(すなわち、流路壁を介して交流させる)ものではなく、外気のみ、或いは内気のみを所定時間間隔でそれぞれ単独で交互に流通させて、内気、外気それぞれに対する熱交換流路11での熱回収及び熱放出、或いは、熱放出及び熱回収を順に繰り返すことによって熱交換を行なうものである。内気、外気という流通空気の入れ替えは、送風方向の切り替えによって行う。   The heat exchange element 1 according to the embodiment is a static heat exchanger that performs heat exchange while remaining stationary without rotating itself. In addition, the outside air and the inside air are not circulated at the same time (that is, exchanged via the flow path wall), but only the outside air or only the inside air is circulated alternately at predetermined time intervals, respectively. Heat exchange and heat release in the heat exchange flow path 11 or heat release and heat recovery are repeated in order to perform heat exchange. Exchange of circulating air such as inside air and outside air is performed by switching the blowing direction.

このような熱交換素子1によれば、それ自体が回転する回転型熱交換器ではないため、熱交換素子1自体が必ずしも回転形状(例えば、断面円形状)である必要が無く、また、回転機構が不要となる。よって、簡易な機構でありながら熱交換流路11数が比較的多い熱交換素子1とすることができ、熱交換性能をある程度維持しながらコンパクト化を可能とする。   According to such a heat exchange element 1, since the heat exchange element 1 itself is not a rotating heat exchanger that rotates, the heat exchange element 1 does not necessarily have a rotational shape (for example, a circular cross section), The mechanism becomes unnecessary. Therefore, although it is a simple mechanism, it can be set as the heat exchange element 1 with comparatively many heat exchange flow paths 11, and compactization is enabled, maintaining a heat exchange performance to some extent.

それぞれの熱交換素子1は、例えば、熱及び水分の所定の保持性(吸着性)及び所定の発散性を有する同形状の複数の熱交換膜板を積層したものを使用することができる。具体的には、同形状の熱交換膜板と、熱交換膜板上に熱交換流路11方向を向いて固定され、熱交換膜板同士の間隔を維持するスペーサーと、を交互に積層してなる。これにより、複数枚の熱交換膜板が等間隔に並設され、この各熱交換膜板間の各層にスペーサーが固定されて、一方向を向いた熱交換流路11が連設される。   Each of the heat exchange elements 1 may be, for example, a laminate of a plurality of heat exchange membrane plates having the same shape and having a predetermined heat (water) retention (adsorption) and predetermined divergence. Specifically, the heat exchange membrane plates having the same shape and spacers that are fixed on the heat exchange membrane plate in the direction of the heat exchange flow path 11 and maintain the interval between the heat exchange membrane plates are alternately laminated. It becomes. As a result, a plurality of heat exchange membrane plates are arranged side by side at equal intervals, spacers are fixed to each layer between the respective heat exchange membrane plates, and the heat exchange flow paths 11 facing in one direction are continuously provided.

熱交換膜板は、それ自体の表面或いは裏面を流通する空気の、潜熱及び顕熱を吸収し或いは放散することで顕熱交換或いは全熱交換するものである。例えば表面に吸着剤を散設したものとすれば、水分の保持性及び発散性に優れたものとなる。積層により隣り合う熱交換膜板同士の並設間隔は、1.5ないし2.0mm、さらには1.7mm程度であることが、高熱交換効率及び低圧力損失のために好ましい。   The heat exchange membrane plate performs sensible heat exchange or total heat exchange by absorbing or dissipating latent heat and sensible heat of the air flowing on the front surface or the back surface thereof. For example, if the adsorbent is dispersed on the surface, the water retention and divergence are excellent. It is preferable for the high heat exchange efficiency and the low pressure loss that the parallel arrangement interval between the heat exchange membrane plates adjacent to each other by lamination is about 1.5 to 2.0 mm, more preferably about 1.7 mm.

熱交換膜板は他に、例えば、厚さ方向に複数の透湿孔を設けた発泡プラスチック断熱材と、この透湿孔を覆うように設けた親水性有機高分子膜と、からなるものとすることができる(図示せず)。発泡プラスチック断熱材は、独立気泡を有する硬質或いは中硬質プラスチックフォームである。透湿孔は、発泡プラスチック断熱材の広さ方向に略均等に複数個、厚さ方向を透湿路として貫通して設けられる。透湿孔を設けることで、発散性を確保することができる。また、熱及び水分の保持性能を確保すべく、積層構造としてもよい。   In addition, the heat exchange membrane plate, for example, comprises a foamed plastic heat insulating material provided with a plurality of moisture permeable holes in the thickness direction, and a hydrophilic organic polymer film provided so as to cover the moisture permeable holes. (Not shown). Foamed plastic insulation is a rigid or medium rigid plastic foam with closed cells. A plurality of moisture permeable holes are provided substantially uniformly in the width direction of the foamed plastic heat insulating material and penetrating through the thickness direction as a moisture permeable path. By providing the moisture permeable holes, divergence can be secured. In addition, a laminated structure may be used in order to ensure heat and moisture retention performance.

スペーサーは例えば、熱交換膜板上において、互いに並行となるように並列固定される、複数本の突条からなる。並設する熱交換膜同士の間隔を維持すると同時に、並行な複数本の線固定によって、換気式熱交換器の形状を保持するものであり、また、換気空気の流れ方向を誘導するものである。スペーサーも熱交換機能たる保持性(吸着性)及び発散性を有するものとすることができる。例えば、スペーサーを、厚さ方向へ段層した複数本の発泡性のホットメルトビードを固化接着してなる突条とすることができる。発泡性により、熱の保持性が向上する。ここでホットメルトビードとは、常温を超えた融点で粘性溶融したホットメルト樹脂(熱溶融樹脂)を抽出してなる線(ビード)状体であり、常温にて硬質又は中硬質固化して接着される。段層にすることで、熱交換流路11の壁面面積が多いものとなり、熱交換効率が上昇する。   For example, the spacer includes a plurality of protrusions fixed in parallel on the heat exchange membrane plate so as to be parallel to each other. While maintaining the interval between the heat exchange membranes arranged side by side, the shape of the ventilation heat exchanger is maintained by fixing a plurality of parallel wires, and the flow direction of the ventilation air is induced. . The spacer can also have retention (adsorption) and divergence, which are heat exchange functions. For example, the spacer can be a ridge formed by solidifying and bonding a plurality of foamable hot melt beads stepped in the thickness direction. Due to the foaming property, heat retention is improved. Here, the hot melt bead is a wire (bead) -like body obtained by extracting hot melt resin (heat melt resin) that has been melted at a melting point exceeding room temperature, and is hardened or hardened at room temperature to be bonded. Is done. By using the stepped layer, the wall surface area of the heat exchange channel 11 is increased, and the heat exchange efficiency is increased.

熱交換素子1は他に、断面略正六角形の熱交換流路11を、その各辺が対向するように上下左右に形成し、かつ、一列毎に、断面視列方向へ各辺の半分長ずつずれたものとしたハニカム構造としてもよい。   In addition, the heat exchange element 1 is formed with heat exchange passages 11 having a substantially regular hexagonal cross section on the top, bottom, left, and right so that the respective sides face each other, and each row has a half length of each side in the direction of the cross-sectional view A honeycomb structure that is shifted one by one may be used.

(断熱チャンバー4)
断熱チャンバー4は、熱交換素子1の周囲を囲繞(好ましくは密閉)することで、熱交換素子1の熱保持性能を確保し、外部への熱放散を抑えるものである。これによって効率的な熱保持が可能となり、より熱交換性能のよいものとなる。例えば、グラスウール、ロックウール等の任意の断熱保持材と、形状保持フレームとから構成される。コンパクトで熱交換流路11数を有効に確保できる箱型、或いは複数の熱交換流路11同士で比較的均等な全熱交換をしうる円筒型が好ましい。
(Insulated chamber 4)
The heat insulation chamber 4 surrounds the heat exchange element 1 (preferably hermetically sealed), thereby ensuring the heat retention performance of the heat exchange element 1 and suppressing heat dissipation to the outside. As a result, efficient heat retention is possible, and heat exchange performance is improved. For example, it is comprised from arbitrary heat insulation holding materials, such as glass wool and rock wool, and a shape maintenance frame. A compact box type that can effectively secure the number of heat exchange channels 11 or a cylindrical type that can perform relatively uniform total heat exchange between the plurality of heat exchange channels 11 is preferable.

(双方向送風手段2)
双方向送風手段2は、熱交換素子1を流通する流体の流通方向を室内方向i、室外方向oの双方向に強制風排するものであり、送風機(双方向回転型送風機21又は一方向回転型送風機22、23、22´、23´)から構成されるか、或いは送風機と必要に応じてダンパー(24、25)とから構成される。
(Bidirectional air blowing means 2)
The bidirectional air blowing means 2 forcibly exhausts the flow direction of the fluid flowing through the heat exchange element 1 in both the indoor direction i and the outdoor direction o. Mold air blowers 22, 23, 22 ', 23'), or air blowers and, if necessary, dampers (24, 25).

実施例1及び2の双方向送風手段2は、一台の双方向回転型送風機21から構成される。この双方向回転型送風機21は、熱交換流路11の一端と向き合うように設けられる(図1、図2)。このような双方向回転型送風機21を設けたものであれば、流路方向が比較的コンパクトな換気式熱交換器となりうる。   The bidirectional air blowing means 2 of the first and second embodiments includes a single bidirectional rotary fan 21. The bidirectional rotary blower 21 is provided so as to face one end of the heat exchange flow path 11 (FIGS. 1 and 2). If such a bidirectional rotary blower 21 is provided, it can be a ventilated heat exchanger having a relatively compact flow path direction.

実施例3の双方向送風手段2は、2台の一方向回転型送風機22、23から構成される。この2台の一方向回転型送風機22、23は、熱交換素子1からみて室内側に設けられた第一の一方向回転型送風機22と、同じく室外側に設けられた第二の一方向回転型送風機23とからなる(図3)。   The bidirectional air blowing means 2 according to the third embodiment includes two unidirectional rotating blowers 22 and 23. The two unidirectional rotating blowers 22 and 23 are the first unidirectional rotating blower 22 provided on the indoor side when viewed from the heat exchange element 1 and the second unidirectional rotating fan provided on the outdoor side. It consists of a mold blower 23 (FIG. 3).

2台の一方向回転型送風機22、23は、互いに逆の回転方向として、熱交換素子1の両端それぞれに向き合うように設けられる。また、いずれも送風方向の上流側に熱交換素子1が位置するようにしており、その送風方向は、熱交換素子内の流体空気を室内、室外へ送り出す方向である。これと併せて、後述する流体温度センサ52を、一方向回転型送風機22、23と熱交換素子との間の流路に設置している。これにより流通空気が熱交換素子内及び流体温度センサ52へ自然流入することとなる。一方向回転型送風機22、23によって流体温度センサ52へ直接強制風排することがないため、流体温度センサ52の誤認識を防ぐことができる。   The two unidirectionally rotating blowers 22 and 23 are provided so as to face opposite ends of the heat exchange element 1 as directions of rotation opposite to each other. Further, in both cases, the heat exchange element 1 is positioned upstream of the blowing direction, and the blowing direction is a direction in which fluid air in the heat exchange element is sent out indoors and outdoors. In addition to this, a fluid temperature sensor 52, which will be described later, is installed in a flow path between the unidirectionally rotating fans 22 and 23 and the heat exchange element. As a result, the circulating air naturally flows into the heat exchange element and the fluid temperature sensor 52. Since the forced air is not exhausted directly to the fluid temperature sensor 52 by the one-way rotating type blowers 22 and 23, erroneous recognition of the fluid temperature sensor 52 can be prevented.

実施例4の双方向送風手段2は、給気用として室内側の給気ダクトに連結される第一の一方向回転型送風機22´と、排気用として室外側の排気ダクトに連結される第二の一方向回転型送風機23´と、還気用として室内側の還気ダクトに連結される第一のダンパー24と、外気用として室外側の外気ダクトに連結される第二のダンパー25とから構成される(図4)。   The bidirectional air blowing means 2 of the fourth embodiment includes a first one-way rotating blower 22 ′ connected to an indoor air supply duct for supplying air, and a first air fan connected to an outdoor exhaust duct for exhaust. Two one-way rotating blowers 23 ', a first damper 24 connected to the indoor return air duct for return air, and a second damper 25 connected to the outdoor air duct for outside air (FIG. 4).

(切り替え手段3)
切り替え手段3は、少なくとも双方向送風手段2と電気的に接続可能とし、双方向送風手段2の送風方向を切り替えるものであり、任意の形式のリレースイッチを具備する。好ましくはさらに、後述する素子表面温度センサ51や流体温度センサ52とも電気的に接続可能としており、表面温度センサ51で検知した表面温度と、流体温度センサ52で検知した流体温度との温度差Δtによって送風方向の切り替え動作を行うものであることが好ましい。
(Switching means 3)
The switching means 3 is electrically connectable to at least the bidirectional blowing means 2 and switches the blowing direction of the bidirectional blowing means 2 and includes an arbitrary type of relay switch. Preferably, further, an element surface temperature sensor 51 and a fluid temperature sensor 52 to be described later can be electrically connected, and a temperature difference Δt between the surface temperature detected by the surface temperature sensor 51 and the fluid temperature detected by the fluid temperature sensor 52. It is preferable to perform the operation of switching the blowing direction.

(切り替え手段3の動作制御)
前記切り替え手段3による送風方向の切り替え動作は、下記(A)(B)(C)のいずれか又は複数を組み合わせて行う。
(A)タイマーによる所定時間ごとの切り替え動作
(B)素子表面温度センサ51で検知した表面温度と、流体温度センサ52で検知した流体温度との温度差Δtによる切り替え動作
(C)流体流量の判定による切り替え動作
(A)タイマーによる所定時間ごとの切り替え動作とは、送風機(21、22、23)の連続運転時間を検知するタイマーを設け、このタイマーに一定の切り替え時間を経過する毎に動作切り替え信号を送るものである。一定の切り替え時間は、必要換気量、送風機の送風能力に応じて予め設定される。
(Operation control of switching means 3)
The switching operation of the blowing direction by the switching unit 3 is performed by combining any one or a plurality of the following (A), (B), and (C).
(A) Switching operation by predetermined time by timer (B) Switching operation by temperature difference Δt between surface temperature detected by element surface temperature sensor 51 and fluid temperature detected by fluid temperature sensor 52 (C) Determination of fluid flow rate (A) The switching operation at predetermined time intervals by the timer is a timer for detecting the continuous operation time of the blower (21, 22, 23), and the operation is switched every time a certain switching time elapses in this timer. A signal is sent. The fixed switching time is set in advance according to the necessary ventilation amount and the blowing capacity of the blower.

(B)表面温度と流体温度との温度差Δtによる切り替え動作とは、直近の切り替え動作後、先ず温度差Δtが所定の第一判定温度差Δtを越え、その後に前記第一判定温度差Δtから所定の第二判定温度差Δt以内まで下がったとき(つまり、表面温度と流体温度とが近似したとき)に切り替え動作を行うものである。   (B) The switching operation based on the temperature difference Δt between the surface temperature and the fluid temperature means that after the most recent switching operation, the temperature difference Δt first exceeds a predetermined first determination temperature difference Δt, and then the first determination temperature difference Δt The switching operation is performed when the temperature falls to within a predetermined second determination temperature difference Δt (that is, when the surface temperature and the fluid temperature are approximate).

(C)流体流量の判定による切り替え動作とは、流体流量の判定を行うと共に、流量が所定の第二判定流量を越えたときに切り替え動作を行うものである。また一方で、所定の第一判定流量を超えるまでは切り替え動作を停止するものである。
所定の第一判定流量は、居室の必要換気量或いはダクト流路に応じて予め設定される。第一判定流量未満での判定によって、居室内で実質的に十分な換気が行われない状態での切り替え動作を制限することで、居室の必要換気量を容易に確保することができる。また、頻繁な切り替え動作の繰り返し(チャタリング現象)を抑止することができる。
(C) The switching operation based on the determination of the fluid flow rate is a determination of the fluid flow rate and a switching operation when the flow rate exceeds a predetermined second determination flow rate. On the other hand, the switching operation is stopped until a predetermined first determination flow rate is exceeded.
The predetermined first determination flow rate is set in advance according to the necessary ventilation amount of the living room or the duct flow path. By limiting the switching operation in a state where substantially sufficient ventilation is not performed in the room by the determination below the first determination flow rate, the necessary ventilation amount in the room can be easily ensured. Further, it is possible to suppress frequent repeated switching operations (chattering phenomenon).

(流体流量の判定)
所定の流体流量を超えたか否かの判定は、熱交換素子1内の流体流量を検知する流量センサを設け、この流量センサによって直接、所定風量を超えたか否かによって行うものでもよい。この場合、流量を直接検知するため、検知精度、ひいては換気量の制御認識に優れるものとなる。
(Determination of fluid flow rate)
The determination as to whether or not the predetermined fluid flow rate has been exceeded may be performed by providing a flow rate sensor that detects the fluid flow rate in the heat exchange element 1 and directly determining whether or not the predetermined air flow rate has been exceeded by this flow rate sensor. In this case, since the flow rate is directly detected, the detection accuracy and thus the control recognition of the ventilation amount are excellent.

また流体流量の判定は、流量センサによる流量そのものの判定に限らず、流量に対応する値の判定によって行うものでもよい。流量に対応する値とは例えば、双方向送風手段2を構成する送風機(21、22、23)の回転数が挙げられる。送風機(21、22、23)の回転数の判定による場合は、具体的には、双方向送風手段2たる送風ファンの回転数を検知する回転数計測器(図示せず)を設け、この計測器でカウントされた、室内方向i、室外方向oの各送風方向回転数が所定回転数を超えたか否かによって行う。   The determination of the fluid flow rate is not limited to determination of the flow rate itself by the flow sensor, but may be performed by determination of a value corresponding to the flow rate. Examples of the value corresponding to the flow rate include the number of rotations of the fans (21, 22, 23) constituting the bidirectional blowing means 2. In the case of determining the rotational speed of the blower (21, 22, 23), specifically, a rotational speed measuring device (not shown) for detecting the rotational speed of the blower fan serving as the bidirectional air blowing means 2 is provided. This is performed depending on whether or not the number of rotations in the blowing direction in the indoor direction i and the outdoor direction o counted by the container exceeds a predetermined number of rotations.

(温度センサ(素子表面温度センサ51、流体温度センサ52))
実施例の換気式熱交換器は、熱交換素子1の表面温度を検知する素子表面温度センサ51と、熱交換素子1の熱交換流路11内或いはその付近の流体温度(熱交換素子1の熱交換流路11を流通する流体、すなわち流通空気の温度)を検知する流体温度センサ52と、を具備する。
(Temperature sensor (element surface temperature sensor 51, fluid temperature sensor 52))
The ventilated heat exchanger according to the embodiment includes an element surface temperature sensor 51 that detects the surface temperature of the heat exchange element 1, and a fluid temperature in or near the heat exchange channel 11 of the heat exchange element 1 (of the heat exchange element 1 And a fluid temperature sensor 52 for detecting the fluid flowing through the heat exchange flow path 11, that is, the temperature of the circulating air.

これらセンサは、ひとつでも複数でもよい。複数設けた場合には、検出温度の誤認識が起こりにくく、制御精度が向上する。   One or a plurality of these sensors may be used. In the case of providing a plurality, erroneous recognition of the detected temperature is unlikely to occur and the control accuracy is improved.

素子表面温度センサ51の取り付け位置すなわち表面温度検知位置は、熱交換素子1の流路構成壁であればいずれの箇所でも構わないが、流路を流通する流体温度と誤認せぬよう、流体と接触しない流路構成壁の内部(さらにいえば厚さ方向中央付近)か、或いは最外流路構成壁の外表面であることが好ましい。また、同じく流体温度と誤認せぬよう、流路の一方向に伸びる中央付近(端部から所定距離(少なくとも50mm以上、好ましくは70mm以上)を開けた中央寄り)であることが好ましい。   The attachment position of the element surface temperature sensor 51, that is, the surface temperature detection position may be any location as long as it is a flow path constituting wall of the heat exchange element 1. It is preferable that it is the inside of the flow path constituting wall that is not in contact (further, near the center in the thickness direction) or the outer surface of the outermost flow path constituting wall. Similarly, it is preferably near the center extending in one direction of the flow path (near the center at a predetermined distance (at least 50 mm or more, preferably 70 mm or more) from the end) so as not to be mistaken for the fluid temperature.

流体温度センサ52の取り付け位置は、流体流路内であればいずれでもよいが、好ましくは、ダクト流路の中央付近であることが、より精度の高い測定を得るために好ましい。   The attachment position of the fluid temperature sensor 52 may be any as long as it is within the fluid flow path, but preferably it is near the center of the duct flow path in order to obtain a more accurate measurement.

本発明の実施例1の換気式熱交換器の構造を図1に示す。   FIG. 1 shows the structure of a ventilated heat exchanger according to Example 1 of the present invention.

実施例1の双方向送風手段2は、熱交換流路11の一端にのみ向き合うように設けられた一台の双方向回転型送風機21から構成される。   The bidirectional air blowing means 2 according to the first embodiment includes a single bidirectional rotary fan 21 provided so as to face only one end of the heat exchange channel 11.

実施例1では、内気流路、外気流路を共通のものとし、送風方向を室内方向iと室外方向oとに交互に切り替えて連続作動させることによって、簡易な構造となっている。例えば、ダクト接続を行わない壁面露出型の換気式熱交換器として好適に使用される。   In the first embodiment, the internal air flow path and the outdoor air flow path are made common, and the air flow direction is alternately switched between the indoor direction i and the outdoor direction o, thereby continuously operating. For example, it is suitably used as a wall-surface-exposed ventilation heat exchanger that does not perform duct connection.

また実施例1では、熱交換素子1の表面温度を検知する素子表面温度センサ51を、熱交換素子1を構成する最外熱交換膜板の外周面略中央であって断熱チャンバー4の内側に設けると共に、熱交換素子1の熱交換流路11を流通する流通空気の温度(流体温度)を検知する流通空気温度センサ52を、熱交換素子1の端面中央に接触させて設けている(図1)。これにより温度センサのメンテナンスが容易となる。   In the first embodiment, the element surface temperature sensor 51 that detects the surface temperature of the heat exchange element 1 is disposed at the center of the outer peripheral surface of the outermost heat exchange membrane plate constituting the heat exchange element 1 and inside the heat insulation chamber 4. A circulating air temperature sensor 52 that detects the temperature (fluid temperature) of circulating air flowing through the heat exchange flow path 11 of the heat exchange element 1 is provided in contact with the center of the end face of the heat exchange element 1 (see FIG. 1). This facilitates maintenance of the temperature sensor.

本発明の実施例2の換気式熱交換器の構成と運転を図2に説明する。   The configuration and operation of a ventilated heat exchanger according to Example 2 of the present invention will be described with reference to FIG.

実施例2は、基本的に実施例1と同様の構成であるが、流体温度センサ52が断熱チャンバー4内の、送風機と熱交換素子1の間に設けられている(図2)。断熱チャンバー4の流体流通方向中央付近に設けることで、断熱チャンバー4で覆われた本発明の換気式熱交換器内の流体温度を安定的に検知することができる。   The second embodiment basically has the same configuration as that of the first embodiment, but a fluid temperature sensor 52 is provided between the blower and the heat exchange element 1 in the heat insulating chamber 4 (FIG. 2). By providing near the center of the heat insulating chamber 4 in the fluid flow direction, the fluid temperature in the ventilated heat exchanger of the present invention covered with the heat insulating chamber 4 can be detected stably.

本発明の実施例3の換気式熱交換器の構成と運転を図3に説明する。   The configuration and operation of a ventilated heat exchanger according to Example 3 of the present invention will be described with reference to FIG.

実施例3の双方向送風手段2は、室内側のダクトに連結される給気用送風機と、室外側のダクトに連結される排気用送風機と、を備えてなる。本実施例の給気用送風機と排気用送風機は、いずれも一方向回転型の送風機であり、互いに反対の送風方向へ回転する。また、いずれも停止時のシャッターを備えない常時開放型送風機であり、運転停止時にもダクトと連通しており、ダクト流路が常時確保される。   The bidirectional air blowing means 2 according to the third embodiment includes an air supply fan connected to an indoor duct and an exhaust fan connected to an outdoor duct. Both the air supply blower and the exhaust blower of the present embodiment are unidirectionally rotating blowers and rotate in the air blowing directions opposite to each other. In addition, both of them are normally open blowers that do not have a shutter when stopped, and communicate with the duct even when operation is stopped, so that a duct flow path is always secured.

居室内に連結される室内側ダクトは給気ダクト並びに還気ダクトを兼用し、居室外に連結される室外側ダクトは排気ダクト並びに外気ダクトを兼用する(図3)。このように、室内側の「給気」及び「還気」並びに、室外側の「外気」及び「排気」という4系統のダクト流路を、換気式熱交換器の給気運転、排気運転の交互運転によって室内側、室外側という2本のダクトに割り当てるものである。これにより、必ずしも4本のダクトを設ける必要が無く、コンパクトな換気式熱交換器、及び、接続したダクトを含むコンパクトな換気システムを構成することができる。各ダクト内の流通方向が安定し、よどみの発生を抑えることができる。   The indoor side duct connected to the living room also serves as an air supply duct and a return air duct, and the outdoor duct connected to the outside of the living room also serves as an exhaust duct and an outside air duct (FIG. 3). In this way, the four systems of duct flow paths, “air supply” and “return air” on the indoor side and “outside air” and “exhaust” on the outdoor side, are used for the air supply operation and the exhaust operation of the ventilation heat exchanger. Alternating operation allocates two ducts, the indoor side and the outdoor side. Accordingly, it is not always necessary to provide four ducts, and a compact ventilation system including a compact ventilation heat exchanger and connected ducts can be configured. The flow direction in each duct is stable, and the occurrence of stagnation can be suppressed.

本実施例の換気式熱交換器は、以下に説明するように、給気運転(図3上図)と排気運転(図3下図)とを交互に行う。先ず給気時には、図3上図のように、給気用送風機(送風機1)のみが運転して給気ダクトにより居室内へ給気がされると共に、排気用送風機(送風機2)は運転を停止している。このとき、排気用送風機(送風機2)は常時開放型送風機であるから、給気用送風機(送風機1)のダクト連結口から室内側ダクトを経て新鮮な室外空気が室内へ給気される。   As will be described below, the ventilation heat exchanger according to the present embodiment alternately performs an air supply operation (upper diagram in FIG. 3) and an exhaust operation (lower diagram in FIG. 3). First, at the time of air supply, as shown in the upper diagram of FIG. 3, only the air supply fan (blower 1) is operated to supply air into the room through the air supply duct, and the exhaust fan (blower 2) is operated. It has stopped. At this time, since the exhaust blower (blower 2) is a normally open blower, fresh outdoor air is supplied into the room from the duct connection port of the air supply blower (blower 1) through the indoor duct.

次に排気時には、図3下図のように、排気用送風機(送風機2)が運転して外気ダクトを経て居室外へ排気がされると共に、給気用送風機(送風機1)は運転を停止している。このとき、給気用送風機(送風機1)は常時開放型送風機であるから、給気用送風機(送風機1)のダクト連結口から室外側ダクトを経て汚染した還気空気が室外へ排気される。   Next, at the time of exhaust, as shown in the lower diagram of FIG. 3, the exhaust fan (blower 2) is operated and exhausted outside the living room through the outside air duct, and the air supply fan (blower 1) is stopped. Yes. At this time, since the air supply blower (blower 1) is a normally open type blower, the contaminated return air is exhausted from the duct connection port of the air supply blower (blower 1) through the outdoor duct.

本発明の実施例4の換気式熱交換器の構成と運転を図4に説明する。実施例4の換気式熱交換器は、以下に特定する以外、基本的に実施例3と同様である。   The configuration and operation of a ventilated heat exchanger according to Example 4 of the present invention will be described with reference to FIG. The ventilated heat exchanger of Example 4 is basically the same as Example 3 except that it is specified below.

実施例4の双方向送風手段2は、給気用として室内側の給気ダクトに連結される第一の一方向回転型送風機22´と、排気用として室外側の排気ダクトに連結される第二の一方向回転型送風機23´と、還気用として室内側の還気ダクトに連結される第一のダンパー24と、外気用として室外側の外気ダクトに連結される第二のダンパー25と、を備えてなる。   The bidirectional air blowing means 2 of the fourth embodiment includes a first one-way rotating blower 22 ′ connected to an indoor air supply duct for supplying air, and a first air fan connected to an outdoor exhaust duct for exhaust. Two one-way rotating blowers 23 ', a first damper 24 connected to the indoor return air duct for return air, and a second damper 25 connected to the outdoor air duct for outside air , Provided.

本実施例の第一の一方向回転型送風機22´及び第二の一方向回転型送風機23´は、それぞれ第一のシャッター22s、第二のシャッター23sを備えたシャッター付き送風機として、運転停止時にはシャッターを閉じるものとしている(図4下表参照)。これにより、各ダンパーの開閉動作と共にシャッターの開閉動作が行われ、給気量、排気量を所定量に制御することができる。それ以外の構造、送風方向及び動作方法は、実施例3の第一の一方向回転型送風機22及び第二の一方向回転型送風機23と同様である。   The first one-way rotating blower 22 'and the second one-way rotating blower 23' of the present embodiment are a blower with a shutter provided with a first shutter 22s and a second shutter 23s, respectively, when the operation is stopped. It is assumed that the shutter is closed (see the lower table in FIG. 4). Thereby, the opening / closing operation of the shutter is performed together with the opening / closing operation of each damper, and the air supply amount and the exhaust amount can be controlled to predetermined amounts. Other structures, air blowing directions, and operation methods are the same as those of the first one-way rotating blower 22 and the second one-way rotating blower 23 of the third embodiment.

本実施例の換気式熱交換器は、居室内に連結される給気ダクト並びに還気ダクト、及び、居室外に連結される排気ダクト並びに外気ダクトというように、4系統のダクト流路をそれぞれ専用ダクトとして一本ずつ割り当てるものである。これにより、各ダクト内の流通方向が安定し、よどみの発生を抑えることができる。   The ventilated heat exchanger of the present embodiment has four duct flow paths, such as an air supply duct and a return air duct connected to the living room, and an exhaust duct and an outdoor air duct connected to the outside of the living room. Each is assigned as a dedicated duct. Thereby, the distribution direction in each duct is stabilized and generation | occurrence | production of stagnation can be suppressed.

本実施例の換気式熱交換器は、以下に説明するように、給気運転(図4上図)と排気運転(図4下図)とを交互に行う。   As will be described below, the ventilation heat exchanger according to the present embodiment alternately performs an air supply operation (upper diagram in FIG. 4) and an exhaust operation (lower diagram in FIG. 4).

先ず新鮮空気の室内への給気時には、図4上図のように、給気用の第一の一方向回転型送風機22´が運転して給気ダクトにより居室内へ強制排風の給気がされると共に、外気用の第二のダンパー25が開状態となって外気ダクトにより居室外の外気が自然流入により吸気される。このとき、排気用の第二の一方向回転型送風機23´は運転を停止していると共に、還気用の第一のダンパー24は閉状態となって居室からの還気流の進入を遮断している(図4下表の上段)。   First, at the time of supplying fresh air into the room, as shown in the upper diagram of FIG. 4, the first one-way rotating blower 22 'for supplying air is operated to supply forced exhaust air into the living room through the air supply duct. At the same time, the second damper 25 for outside air is opened, and outside air outside the room is sucked by natural inflow by the outside air duct. At this time, the second one-way rotating blower 23 'for exhaust is stopped, and the first damper 24 for return air is closed to block the return air from entering the room. (The upper part of the lower table in FIG. 4).

次に排気時には、図4下図のように、排気用の第二の一方向回転型送風機23´が運転して外気ダクトを経て居室外へ強制排風の排気がされると共に、還気用の第一のダンパー24が開状態となって還気ダクトにより居室内の汚染空気が自然流入により還気される。このとき、給気用の第一の一方向回転型送風機22´は運転を停止していると共に、外気用の第二のダンパー25は閉状態となって室外からの外気流の進入を遮断している(図4下表の下段)。   Next, at the time of exhaust, as shown in the lower diagram of FIG. 4, the second one-way rotating blower 23 ′ for exhaust is operated to exhaust forced exhaust air to the outside of the room through the outside air duct, and for return air The first damper 24 is opened, and the contaminated air in the living room is returned to the natural air by the return air duct. At this time, the operation of the first one-way rotating blower 22 'for supplying air is stopped, and the second damper 25 for outside air is in a closed state to block the outside air from entering from the outside. (Lower part of the lower table in FIG. 4).

(本発明の換気式熱交換器ユニット)
また、実施例5として示す本発明の換気式熱交換器ユニットは、一又は複数台の第一の換気式熱交換器10Aと、一又は複数台の第二の換気式熱交換器10Bとを、それぞれ同数台ずつ具備した一体型又は別体のユニットである。そして、第一の換気式熱交換器が具備する第一の切り替え手段3と、第二の換気式熱交換器が具備する第二の切り替え手段3とが連動して、各送風方向を互いに、室内方向i、室外方向oのいずれか逆方向へ切り替わるものとしている。
(Ventilated heat exchanger unit of the present invention)
In addition, the ventilated heat exchanger unit of the present invention shown as Example 5 includes one or more first ventilated heat exchangers 10A and one or more second ventilated heat exchangers 10B. , Each unit is an integral or separate unit. And the 1st switching means 3 which a 1st ventilation type heat exchanger comprises, and the 2nd switching means 3 which a 2nd ventilation type heat exchanger comprises interlock | cooperate, and each ventilation direction mutually, It is assumed that the direction is switched to either the indoor direction i or the outdoor direction o.

すなわち、
共通方向に伸びて互いに隣接した複数の第一の熱交換流路11を有する第一の熱交換素子1と、この第一の熱交換流路11内を、室内方向i及び室外方向oの双方向に送風しうる第一の双方向送風手段2と、この第一の双方向送風手段2の送風方向を切り替える第一の切り替え手段3とを具備する第一の換気式熱交換器10Aと、
共通方向に伸びて互いに隣接した複数の第二の熱交換流路11を有する第二の熱交換素子1と、この第二の熱交換流路11内を、室外方向o及び室内方向iの双方向に送風しうる第二の双方向送風手段2と、この第二の双方向送風手段2の送風方向を切り替える第二の切り替え手段3とを具備する第二の換気式熱交換器10Bとを、それぞれ一台又は複数台具備してなる換気式熱交換器ユニットであって、
第一の切り替え手段3と第二の切り替え手段3の各切り替え動作を連動させて、第一の双方向送風手段2の送風方向と、第二の双方向送風手段2の送風方向とが、互いに室内方向i及び室外方向oの逆方向に送風するようにした換気式熱交換器ユニットである。
That is,
A first heat exchange element 1 having a plurality of first heat exchange channels 11 extending in a common direction and adjacent to each other, and the inside of the first heat exchange channel 11 in both the indoor direction i and the outdoor direction o 10A of 1st ventilation heat exchangers which comprise the 1st bidirectional | two-way ventilation means 2 which can ventilate in the direction, and the 1st switching means 3 which switches the ventilation direction of this 1st bidirectional | two-way ventilation means 2;
The second heat exchange element 1 having a plurality of second heat exchange channels 11 extending in the common direction and adjacent to each other, and the inside of the second heat exchange channel 11 both in the outdoor direction o and the indoor direction i A second ventilating heat exchanger 10B having a second bidirectional air blowing means 2 capable of blowing air in a direction and a second switching means 3 for switching the air blowing direction of the second bidirectional air blowing means 2. , Each is a ventilated heat exchanger unit comprising one or more units,
By linking the switching operations of the first switching means 3 and the second switching means 3, the blowing direction of the first bidirectional blowing means 2 and the blowing direction of the second bidirectional blowing means 2 are mutually connected. This is a ventilated heat exchanger unit that blows air in the direction opposite to the indoor direction i and the outdoor direction o.

例えば、図2、図3、図4のいずれかにおいて、それぞれの上図に示す第一の換気式熱交換器10Aと、下図に示す第二の換気式熱交換器10Bとを同数台ずつ備え、各換気式熱交換器が換気を行う居室と室外とにダクト連結されるものである。   For example, in any of FIG. 2, FIG. 3, and FIG. 4, the same number of first ventilated heat exchangers 10A shown in the upper diagram and second ventilated heat exchangers 10B shown in the lower diagram are provided. Each ventilated heat exchanger is duct-connected to a room for ventilation and an outside.

(第一、第二の送風方向について)
第一、第二の双方向送風手段2は、送風方向が運転中に常時、互いに室内方向i及び室外方向oの逆方向を向くと共に、第一、第二の切り替え手段3は相互に連動して切り替え動作を行う。具体的には、第一の送風方向が室内方向iのときは第二の各送風方向が室外方向oとなる。第一、第二の切り替え手段3のうちいずれか一方の切り替え手段3が切り替え動作を行うと、他方の切り替え手段3が連動して切り替え動作を行う。そして、第一の送風方向が室外方向oのとき、第二の各送風方向が室内方向iとなる。このようにして、運転時には常時、第一の換気式熱交換器の送風方向と第二の換気式熱交換器の送風方向が逆方向となる。
(About the first and second air blowing directions)
The first and second bidirectional blowing means 2 are always directed in directions opposite to each other in the indoor direction i and the outdoor direction o during operation, and the first and second switching means 3 are interlocked with each other. Switch operation. Specifically, when the first air blowing direction is the indoor direction i, each second air blowing direction is the outdoor direction o. When one of the first and second switching means 3 performs the switching operation, the other switching means 3 performs the switching operation in conjunction with each other. When the first air blowing direction is the outdoor direction o, each second air blowing direction is the indoor direction i. In this way, the air blowing direction of the first ventilation heat exchanger and the air blowing direction of the second ventilation heat exchanger are always opposite during operation.

換気式熱交換器ユニットは、これを構成する複数の換気式熱交換器がそれぞれ別体からなるものとしてもよく、他に、複数の換気式熱交換器を複数体或いは一体に纏めた少数体或いは一体からなるものとしても良い。   The ventilating heat exchanger unit may be composed of a plurality of ventilating heat exchangers constituting the unit, or a plurality of ventilating heat exchangers or a small number of them integrated together. Alternatively, it may be a single unit.

その他、各部の具体的な構成は、上述した実施例に限定されるものでなく、本発明の趣旨を逸脱しない範囲で種々の変形が可能である。   In addition, the specific configuration of each part is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

本発明の換気式熱交換器は、総合空気調和機としても利用できる。また、ダクトや吹出口を含む熱交換空調システムとしても利用できる。   The ventilated heat exchanger of the present invention can also be used as an integrated air conditioner. It can also be used as a heat exchange air conditioning system including ducts and air outlets.

本発明の実施例1の換気式熱交換器の構造を説明する一部透視説明図である。It is a partially transparent explanatory drawing explaining the structure of the ventilation type heat exchanger of Example 1 of this invention. 本発明の実施例2の換気式熱交換器の構成と運転を説明する簡略説明図である。It is a simplified explanatory drawing explaining the structure and operation | movement of a ventilation type heat exchanger of Example 2 of this invention. 本発明の実施例3の換気式熱交換器の構成と運転を説明する簡略説明図である。It is a simplified explanatory drawing explaining the structure and operation | movement of a ventilation type heat exchanger of Example 3 of this invention. 本発明の実施例4の換気式熱交換器の構成と運転を説明する簡略説明図である。It is a simplified explanatory drawing explaining the structure and operation | movement of a ventilation type heat exchanger of Example 4 of this invention.

符号の説明Explanation of symbols

1 熱交換素子
11 熱交換流路
2 双方向送風手段
21 双方向回転型送風機
22 第一の一方向回転型送風機
23 第二の一方向回転型送風機
24 第一のダンパー
25 第二のダンパー
3 切り替え手段
4 断熱チャンバー
51 素子表面温度センサ
52 流体温度センサ
i 室内方向
o 室外方向
DESCRIPTION OF SYMBOLS 1 Heat exchange element 11 Heat exchange flow path 2 Bidirectional ventilation means 21 Bidirectional rotation type blower 22 First one-way rotation type blower 23 Second one-way rotation type blower 24 First damper 25 Second damper 3 Switching Means 4 Thermal insulation chamber 51 Element surface temperature sensor 52 Fluid temperature sensor i Indoor direction o Outdoor direction

Claims (4)

共通方向に伸びる複数の熱交換流路を有する熱交換素子と、この熱交換流路内へ室内方向及び室外方向の双方向に送風しうる双方向送風手段と、この双方向送風手段の送風方向を切り替える切り替え手段とを具備することを特徴とする換気式熱交換器。   A heat exchange element having a plurality of heat exchange passages extending in a common direction, a bidirectional air blowing means capable of blowing air into the heat exchange flow passage in both the indoor direction and the outdoor direction, and the air blowing direction of the bidirectional air blowing means And a switching means for switching between. 熱交換素子を覆う断熱チャンバーを具備する請求項1記載の換気式熱交換器。   The ventilated heat exchanger according to claim 1, further comprising a heat insulating chamber covering the heat exchange element. 熱交換素子の表面温度を検知する素子表面温度センサと、熱交換素子の熱交換流路内或いはその付近の流体温度を検知する流体温度センサと、を具備すると共に、前記切り替え手段は、素子表面温度センサで検知した表面温度と、流体温度センサで検知した流体温度との温度差に応じて送風方向の切り替え動作を行うものである請求項1または2記載の換気式熱交換器。   An element surface temperature sensor for detecting the surface temperature of the heat exchange element; and a fluid temperature sensor for detecting a fluid temperature in or near the heat exchange flow path of the heat exchange element. The ventilated heat exchanger according to claim 1 or 2, wherein the ventilation direction switching operation is performed according to a temperature difference between the surface temperature detected by the temperature sensor and the fluid temperature detected by the fluid temperature sensor. 請求項1、2または3記載の第一の換気式熱交換器と、請求項1、2または3記載の第二の換気式熱交換器とを具備すると共に、第一の換気式熱交換器が具備する第一の切り替え手段と、第二の換気式熱交換器が具備する第二の切り替え手段とが連動して、各送風方向を互いに逆方向へ切り替えるものである換気式熱交換器ユニット。   A first ventilated heat exchanger according to claim 1, 2 or 3, and a second ventilated heat exchanger according to claim 1, 2 or 3, and a first ventilated heat exchanger. The ventilating heat exchanger unit is configured such that the first switching means included in the second switching means included in the second ventilated heat exchanger interlocks to switch the air blowing directions in opposite directions. .
JP2005101535A 2005-03-31 2005-03-31 Ventilation type heat exchanger and ventilation type heat exchanger unit Withdrawn JP2006284021A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017072279A (en) * 2015-10-06 2017-04-13 政安 宮崎 Heat recovery type class-second 24 hours ventilation system
KR101919465B1 (en) 2014-03-18 2019-02-11 지게니아-아우비 카게 Ventilating Device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101919465B1 (en) 2014-03-18 2019-02-11 지게니아-아우비 카게 Ventilating Device
JP2017072279A (en) * 2015-10-06 2017-04-13 政安 宮崎 Heat recovery type class-second 24 hours ventilation system

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