JP3837988B2

JP3837988B2 - Heat exchange ventilator

Info

Publication number: JP3837988B2
Application number: JP2000055542A
Authority: JP
Inventors: 善久鈴木
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2000-03-01
Filing date: 2000-03-01
Publication date: 2006-10-25
Anticipated expiration: 2020-03-01
Also published as: JP2001241719A

Description

【０００１】
【発明の属する技術分野】
本発明は、熱交換器を通じて給排気による熱交換換気を行う大型で床置きタイプの熱交換換気装置に関するものである。
【０００２】
【従来の技術】
ビルや社屋等の広い空間の換気には、例えば特開平６―１０１８８３号公報に示されているような大型で床設置タイプの熱交換換気装置が用いられることが多い。この種の熱交換換気装置は基本的には、図１８に示すように室内から室外（多くは屋外）へ向う排気流を排気通路に形成する排気用送風機と、室外（多くは屋外）から室内へ向う給気流を給気通路に形成する給気用送風機３０と、排気通路と給気通路の経路の一部を構成し、給排気流間で連続的な熱交換を行う熱交換器３１とにより構成されている。熱交換の主体である熱交換器３１は、一次気流である排気流を通す複数の一次通路と、二次気流である給気流を通す複数の二次通路とが内部で独立状態のまま交差した六面体で積層構造のものが多く採用されている。
【０００３】
処理風量に応じて給気用送風機３０や排気用送風機の能力が設定され、熱交換器３１についても多段の階層構造が採られている。熱交換換気は、給排気流間で熱交換を行わせることにより室内の温度や湿度といった状態量の変動を抑えた給排気による換気が可能であるが、春秋季等の中間期には外気をそのまま取入れた方のが快適度が高いようなこともあり、このような場合には、排気流をバイパス通路によって熱交換器３１を迂回して流すことができるようになっているものもある。また、中高性能フィルター３２を内蔵したフィルターユニット３３を階層構造の中に接続することによって、室内へ取入れる空気の清浄度を高く維持できるようにしたものもある。
【０００４】
【発明が解決しようとする課題】
上記したような大型の床設置タイプの熱交換換気装置は、要求される処理能力に見合う給気用送風機３０と排気用送風機がそれぞれ選定され、熱交換器３１の階層数もそれに応じて構成され、一品一様で製造されている。従って、処理能力の異なる品目の熱交換換気装置毎に個別に部品を用意しておく必要があり、生産性が低く高コストにならざるを得なかった。また、施工時に風量を少量だけ変更する必要が生じた場合にも、給気用送風機３０や排気用送風機のプーリ３４やベルト３５の交換によってしか対応できず、風量変更に対する対応性の低いものでもある。さらに、大型で質量も大きいため、その荷扱いに拘わる梱包資材も頑強なものが必要なため梱包コストも高くつくといった問題点も含んでいた。
【０００５】
本発明は、上記した従来の問題点を解消するためになされたものであって、その課題とするところは、大型で床設置タイプの熱交換換気装置の生産性の向上とコストの低減を図ることであり、処理風量の変更に対する対応性の良い熱交換換気装置を得ることであり、その熱交換換気装置の設置性の向上を推進することである。
【０００６】
【課題を解決するための手段】
前記課題を達成するために請求項１の発明は、回転数可変の給気用送風機と、回転数可変の排気用送風機を六面体の単一の送風ケーシング内に離隔して組込み、送風ケーシングの給気用送風機側には給気吸込口と給気吹出口を構成し、排気用送風機側にも排気吸込口と排気吹出口を構成した床上に設置する送風ユニット上に、六面体の熱交換ケーシング内に給気流と排気流間での熱交換を連続的に行う熱交換器を組込んだ熱交換ユニットを積み重ねて構成し、熱交換ユニットには、送風ユニットの給気吸込口に流出口側が連絡する給気流を通す給気通路と、排気吸込口に流出口側が連絡する排気流を通す排気通路を構成し、給気通路の流入口を室外へ連絡できるように開口させ、排気通路の流入口を室内へ連絡できるよう開口させ、この熱交換ユニット上に熱交換ユニットと同形同一構成の熱交換ユニットを整数個積み重ね得るように構成し、熱交換ユニットの積み重ねた数によって給気用送風機と排気用送風機の回転数を変えるようにする手段を採用する。
【０００８】
前記課題を達成するために請求項２の発明は、請求項１に係る前記手段における熱交換ユニットの給気通路の流入口と、排気通路の流入口をそれぞれ複数個、異なる方向に向って閉止可能に開口させ、送風ユニットの給気吹出口と排気吹出口を複数個、異なる方向に向って閉止可能に開口させる手段を採用する。
【００１３】
【発明の実施の形態】
図１〜図１７は本実施の形態の熱交換換気装置について示したものである。この熱交換換気装置は、ビルや社屋等の広い空間の換気に供される大型で床上に設置される床設置タイプのものであり、給気用送風機１と排気用送風機２が組込まれた床設置側となる送風ユニット３に、積層型の熱交換器４が組込まれた熱交換ユニット５を積み上げた階層構造が採られている。送風ユニット３は、六面体の単一の送風ケーシング６内が左右の気室に等分され、一方の気室に対して給気用送風機１が、他方の気室に対して排気用送風機２がそれぞれ組込まれて構成されている。送風ケーシング６の底部は、図１に示すように剛性のある高強度の鋼板等により荷役作業に使うパレット状に構成され、左右には取付用フランジ７が、取付フランジ７の内側にはそれぞれ正面から背面にまで連続するチャンネル状の二列の搬送用構造８が一体に設けられている。
【００１４】
送風ユニット３の一方の気室に臨む側面と背面や前面には給気吹出口９が開設され、他方の気室に臨む側面と背面や前面には排気吹出口１０が開設されている。これらの給気吹出口９及び排気吹出口１０は設置条件においてダクト配管のし易い一つ又は二つを残し、それ以外のものは塞ぎ板２２で閉止される。また、送風ユニット３の一方の気室に臨む背面側上面には給気吸込口が、他方の気室に臨む背面側上面には排気吸込口が開設されている。給気用送風機１及び排気用送風機２は、ターボファン１１と可変速のモーター１２とによりそれぞれ構成され、拡大率のない箱形ケーシング１３に組込まれ、各気室の略中央に各ターボファン１１の回転面が略水平面になるように取付けられている（図１，２参照）。給気用送風機１と排気用送風機２の各モーター１２は送風ユニット３に組付けられたインバーター駆動回路１４により可変速制御され、給気用送風機１の作動により給気吸込口から給気吹出口９に向かう気流が形成され、排気用送風機２の作動により排気吸込口から排気吹出口１０に向かう気流が形成される。
【００１５】
この送風ユニット３上に積み重ねられた熱交換ユニット５は、六面体の熱交換ケーシング１５内に、一次気流（排気流）を通す複数の直線状の一次通路と二次気流（給気流）を通す複数の直線状の二次通路とが内部で独立状態のまま交差し、一次通路の出入口端が対向する二面に開口し、二次通路の出入口端が他の対向する二面に開口し、両小口の閉止した六面体に構成された積層構造の熱交換器４を着脱可能に組込んだ構成である（図１３参照）。熱交換器４は、その小口が熱交換ケーシング１５の両側に対向し、一次通路と二次通路が熱交換ケーシング１５の対角線と略平行となるように組込まれている。熱交換器４の一方の小口が臨む熱交換ケーシング１５の一側側には給気チャンバー１６が画成され、他方の小口が臨む他側側には排気チャンバー１７が画成されている（図２，１０参照）。
【００１６】
熱交換ユニット５の背面側には、送風ユニット３の給気吸込口に流出口側が連絡する給気流を通す給気通路１８と、排気吸込口に流出口側が連絡する排気流を通す排気通路１９が全経路について独立状態に形成されている。熱交換器４の一次通路は排気通路１９の一部を構成し、二次通路は給気通路１８の一部を構成している。給気チャンバー１６が臨む熱交換ケーシング１５の一側側の上部と側面及び背面や前面には給気通路１８の流入口となる室外吸込口２０が、排気チャンバー１７が臨む熱交換ケーシング１５の一側側の上部と側面及び背面や前面には排気通路１９の流入口となる室内吸込口２１がそれぞれ開設されている。これらの室外吸込口２０及び室内吸込口２１は設置条件においてダクト配管のし易い一つ又は二つを残し、それ以外のものは塞ぎ板２２で閉止される（図１４参照）。排気チャンバー１７には熱交換器４の一次通路を迂回するバイパス通路が開閉ダンパにより開閉可能に設けられている。
【００１７】
熱交換器４の給気流の流入側と排気流の流入側には、図１３に示すようにそれぞれ塵埃を除去するプレフィルター２３が保持構造２４により着脱可能に保持されている。各プレフィルター２３の保持構造２４は内外二段の保持枠部２５を備え、外側の保持枠部２５にプレフィルター２３が、内側の保持枠部２５に中高性能フィルターや脱臭フィルター等の空気清浄化手段２６が必要に応じて保持される。これらのプレフィルター２３及び空気清浄化手段２６は、いずれも熱交換ケーシング１５の正面に設けられた点検口からの着脱によりメンテナンスを行うことが可能である。なお、送風ユニット３と熱交換ユニット５とは別体構成を採っても、一体構成を採っても構わない。
【００１８】
この熱交換換気装置について、処理風量を多くしたい場合には熱交換ユニット５と同形同一構成の熱交換ユニット５を熱交換ユニット５の上に、図１４や図１５に示すように積み重ね相互に固定して多段の階層構造に構成し、給気用送風機１と排気用送風機２の各モーター１２の回転数をインバーター駆動回路１４により上げる設定をすればよい。下段の熱交換ユニット５の上面の室外吸込口２０と室内吸込口２１は上段の熱交換ユニット５の下面で閉止され、各熱交換ユニット５の背面側の給気通路１８同士と排気通路１９同士は連通し、それぞれ送風ユニット３の給気吸込口と排気吸込口とに連絡する。
【００１９】
送風ユニット３の給気吹出口９は、設置場所の条件に合った都合の良い一つを図９に示すようにダクト２７により室内へ連絡させ、排気吹出口１０も設置場所の条件に合った都合の良い一つをダクト２７により室外へ連絡させる。なお、排気吹出口１０については風路切換手段等の切換えにより図１６に示すように室内に設置される空調装置２８に接続されることもある。各熱交換ユニット５の室外吸込口２０は、設置場所の条件に合った都合の良い一つを図１０に示すようにダクト２７により室外へ連絡させ、室内吸込口２１も設置場所の条件に合った都合の良い一つをダクト２７により室内へ連絡させる。なお、室内吸込口２１については図１６に示すように室内に設置される空調装置２８の吹出側に接続されることもある。このように多方向に給気吹出口９や排気吹出口１０及び室外吸込口２０や室内吸込口２１が設けられているためダクト配管の自由度は高く、図１１，１２，１６，１７に示すように設置場所の条件に応じてダクト配管を行うことができ、ダクトとの接続部の高さもある程度選択できる。
【００２０】
給気用送風機１と排気用送風機２は拡大率のない箱形ケーシング１３に収められ、各気室の略中央に各ターボファン１１の回転面が略水平面になるように取付けられているため、いずれの方向の給気吹出口９、排気吹出口１０に対しても吹出し条件は同じになり、送風性能に支障をきたすことなくダクト配管の自由度を高めることができる。給気用送風機１と排気用送風機２を動作させれば、各熱交換ユニット５の熱交換器４により給気流と排気流間での連続的な熱交換を伴う同時給排気による換気が行われる。熱交換ユニット５のバイパス通路を開放させれば、熱交換器４を迂回して排気流が流れ熱交換を伴わない普通換気が行われる。室内へ供給する外気を清浄化する場合には、熱交換器４の二次通路側のプレフィルター２３の内側に中高性能フィルターを装着すればよい（図１３参照）。また、一次通路側のプレフィルター２３の内側に脱臭フィルターを装着すれば、ペットショプ等において店外への排気成分を除去でき、近隣に対する臭気問題等を解消することができる。
【００２１】
処理風量の異なる熱交換換気装置を製造する場合には、処理風量に応じた数の熱交換ユニット５の階層構造を採ればよく、その生産性は高いものとなる。そして、送風ユニット３も熱交換ユニット５も共通化でき、別部品を用意する必要もないためコストはすこぶる低減する。この熱交換換気装置は質量も大きく梱包にはあたっては梱包資材も頑強なものが必要となる。また、輸送や据付けに伴う扱いには、通常においてはパレットを使用することになるが、送風ユニット３の底部に荷役装置のフォーク等の作業具を挿入できる搬送用構造８が一体に構成されているため、この搬送用構造８を使いパレットを用いず直接荷役装置により移動させることができる。従って、梱包資材も簡素化できパレットも不要となるので資源の有効利用に貢献でき、コストも低減できる。
【００２２】
【発明の効果】
請求項１の発明によれば、大型で床設置タイプの熱交換換気装置の生産性の向上とコストの低減を図ることができ、給気用送風機と排気用送風機の回転数を熱交換ユニットの数に応じて変えることができる。
【００２４】
請求項２の発明によれば、請求項１に係る前記効果とともにダクト配管の自由度が増し、設置性が向上する。
【図面の簡単な説明】
【図１】実施の形態の熱交換換気装置を示す正面図である。
【図２】実施の形態の熱交換換気装置を示す平面図である。
【図３】実施の形態の熱交換換気装置を示す右側面図である。
【図４】実施の形態の熱交換換気装置を示す左側面図である。
【図５】実施の形態の熱交換換気装置の熱交換ユニットを示す正面図である。
【図６】実施の形態の熱交換換気装置の熱交換ユニットを示す平面図である。
【図７】実施の形態の熱交換換気装置の熱交換ユニットを示す右側面図である。
【図８】実施の形態の熱交換換気装置の熱交換ユニットを示す左側面図である。
【図９】実施の形態の熱交換換気装置の送風ユニットのダクト接続形態を示す平面図である。
【図１０】実施の形態の熱交換換気装置の熱交換ユニットのダクト接続形態を示す平面図である。
【図１１】実施の形態の熱交換換気装置のダクト接続形態の一例を示す正面図である。
【図１２】実施の形態の熱交換換気装置のダクト接続形態の一例を示す正面図である。
【図１３】実施の形態の熱交換換気装置の熱交換器部分を示す拡大構成図である。
【図１４】実施の形態の熱交換換気装置の階層構造を示す正面図と側面図である。
【図１５】実施の形態の熱交換換気装置の階層構造を示す正面図と側面図である。
【図１６】実施の形態の熱交換換気装置のダクト接続形態の一例を示す正面図である。
【図１７】実施の形態の熱交換換気装置のダクト接続形態の一例を示す正面図である。
【図１８】従来の熱交換換気装置を示す側面図である。
【符号の説明】
１給気用送風機、２排気用送風機、３送風ユニット、４熱交換器、５熱交換ユニット、６送風ケーシング、８搬送用構造、９給気吹出口、１０排気吹出口、１１ターボファン、１２モーター、１４インバーター駆動回路、１５熱交換ケーシング、１８給気通路、１９排気通路、２０室外吸込口、２１室内吸込口、２３プレフィルター、２４保持構造、２６空気清浄化手段。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a large floor-standing type heat exchange ventilator that performs heat exchange ventilation by supplying and exhausting air through a heat exchanger.
[0002]
[Prior art]
For ventilation of a wide space such as a building or a company building, a large floor-installed heat exchange ventilator as shown in, for example, Japanese Patent Application Laid-Open No. 6-101883 is often used. As shown in FIG. 18, this type of heat exchange ventilator basically has an exhaust fan that forms an exhaust flow in the exhaust passage from the room to the outside (mostly outdoors), and from the outside (mostly outdoors) to the room. An air supply blower 30 that forms a supply airflow toward the air supply passage, a heat exchanger 31 that forms part of the exhaust passage and the supply passage, and performs continuous heat exchange between the supply and exhaust flows; It is comprised by. In the heat exchanger 31 which is a main body of heat exchange, a plurality of primary passages through which an exhaust flow which is a primary air flow passes and a plurality of secondary passages through which a supply air flow which is a secondary air flow intersect in an independent state inside. Many hexahedral and laminated structures are used.
[0003]
The capabilities of the air supply blower 30 and the exhaust blower are set according to the processing air volume, and the heat exchanger 31 has a multi-stage hierarchical structure. In heat exchange ventilation, it is possible to ventilate by air supply and exhaust while suppressing fluctuations in the state quantity such as indoor temperature and humidity by exchanging heat between the air supply and exhaust flow. In some cases, the degree of comfort is higher if it is taken in as it is. In such a case, the exhaust flow can be bypassed through the heat exchanger 31 by the bypass passage. In addition, there is a type in which the cleanliness of the air taken into the room can be kept high by connecting the filter unit 33 including the medium / high performance filter 32 in a hierarchical structure.
[0004]
[Problems to be solved by the invention]
In the large-scale floor-mounted heat exchange ventilator as described above, an air supply blower 30 and an exhaust blower that meet the required processing capacity are selected, and the number of layers of the heat exchanger 31 is configured accordingly. , One product is manufactured uniformly. Therefore, it is necessary to prepare individual parts for each heat exchange ventilator of items having different processing capacities, resulting in low productivity and high cost. Also, when it is necessary to change the air volume by a small amount at the time of construction, it can be dealt with only by replacing the air supply blower 30 or the pulley 34 or belt 35 of the exhaust blower, even if the air flow change is low. is there. In addition, since it is large and has a large mass, the packaging materials involved in handling the cargo need to be robust, and the packaging cost is high.
[0005]
The present invention was made to solve the conventional problems described above, and has as its object, a reduction in the increase and cost of production of the heat exchange ventilator of the floor standing type large achieve it, and the is to obtain a correspondence with good heat exchange ventilator to changes in process air volume is to promote on installation of direction of the heat exchange ventilator.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is characterized in that an air supply fan having a variable rotation speed and an exhaust fan having a variable rotation speed are separately incorporated in a single hexahedron air blowing casing to supply the air supply casing. the air blower side constitutes a supply inlet and the air supply outlet, on the blower unit to the exhaust blower side to be installed on a floor which constitutes the exhaust outlet and the exhaust inlet, six sided heat exchanger casing the air supply and continuous heat exchange unit incorporating a heat exchanger for exchanging heat between the exhaust stream and formed by stacking seen product within, the heat exchange unit, the flow to the air supply inlet of the blower unit An air supply passage through which the supply air flow communicated with the outlet side and an exhaust passage through which the exhaust flow communicated with the outlet side communicate with the exhaust suction port are configured, and the inlet of the air supply passage is opened so that it can communicate with the outside. is opened to allow contact of the inlet into the chamber, the heat exchanger The heat exchange unit of heat exchange units isomorphic same configuration and structure as may stack an integer number on the unit, means you to change the rotational speed of the exhaust blower and air supply fan by number of stacked heat exchange units Is adopted.
[0008]
In order to achieve the above object, the invention according to claim 2 is to close the plurality of inlets of the supply passage and the exhaust passage of the heat exchange unit in the means according to claim 1 in different directions. capable is opened, employing air supply outlet of the blower unit and a plurality of exhaust outlet, the means for Ru allowed closable so opened toward the different directions.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
1 to 17 show the heat exchange ventilator of the present embodiment. This heat exchange ventilator is a large-sized floor-mounted type that is provided on the floor for ventilation in a wide space such as a building or company building, and has a floor in which an air supply fan 1 and an exhaust fan 2 are incorporated. A hierarchical structure is adopted in which the air exchange unit 5 on the installation side is stacked with the heat exchange unit 5 in which the laminated heat exchanger 4 is incorporated. The blower unit 3 has a hexahedron single blower casing 6 equally divided into left and right air chambers, an air supply fan 1 for one air chamber, and an exhaust fan 2 for the other air chamber. Each is built and configured. As shown in FIG. 1, the bottom portion of the blower casing 6 is configured in a pallet shape used for cargo handling work with a rigid high-strength steel plate or the like. Channel-like two rows of transfer structures 8 that are continuous from the back to the back are integrally provided.
[0014]
An air supply outlet 9 is opened on the side, back and front facing the one air chamber of the blower unit 3, and an exhaust outlet 10 is opened on the side, back and front facing the other air chamber. The supply air outlet 9 and the exhaust air outlet 10 leave one or two duct pipes that are easy to install in the installation conditions, and the others are closed by a closing plate 22. In addition, an air supply inlet is provided on the upper surface on the back side facing the one air chamber of the blower unit 3, and an exhaust air inlet is provided on the upper surface on the back side facing the other air chamber. The air supply blower 1 and the exhaust blower 2 are respectively constituted by a turbo fan 11 and a variable speed motor 12, and are incorporated in a box-shaped casing 13 having no enlargement ratio. Are attached so that their rotational surfaces are substantially horizontal (see FIGS. 1 and 2). Each motor 12 of the air supply blower 1 and the exhaust air blower 2 is controlled at a variable speed by an inverter drive circuit 14 assembled in the air supply unit 3, and the operation of the air supply blower 1 causes the supply air outlet to supply the air. 9 is formed, and by the operation of the exhaust blower 2, an air flow is formed from the exhaust suction port toward the exhaust air outlet 10.
[0015]
The heat exchange unit 5 stacked on the blower unit 3 has a plurality of linear primary passages for passing a primary airflow (exhaust flow) and a plurality of secondary airflows (feed airflow) in a hexahedral heat exchange casing 15. The linear secondary passage of the primary passage intersects with each other in an independent state, the primary passage's entrance and exit ends open on two opposing sides, and the secondary passage's entrance and exit ends open on the other opposing two sides. It is the structure which incorporated the heat exchanger 4 of the laminated structure comprised in the hexahedron with which the small edge was closed so that attachment or detachment is possible (refer FIG. 13). The heat exchanger 4 is assembled so that the small openings thereof face both sides of the heat exchange casing 15 and the primary passage and the secondary passage are substantially parallel to the diagonal line of the heat exchange casing 15. An air supply chamber 16 is defined on one side of the heat exchange casing 15 facing one small opening of the heat exchanger 4, and an exhaust chamber 17 is defined on the other side facing the other small opening (FIG. 2, 10).
[0016]
On the back side of the heat exchange unit 5, an air supply passage 18 through which a supply air flow communicated with the air supply inlet of the blower unit 3 communicates with an air outlet side, and an exhaust passage 19 through which an exhaust flow communicates with the exhaust air intake port communicates with the outlet side Are formed in an independent state for all paths. The primary passage of the heat exchanger 4 constitutes a part of the exhaust passage 19, and the secondary passage constitutes a part of the air supply passage 18. An outdoor suction port 20 serving as an inflow port of the air supply passage 18 is provided on one side of the heat exchange casing 15 facing the air supply chamber 16, an upper side surface, a rear surface, and a front surface of the heat exchange casing 15. Indoor suction ports 21 that serve as inflow ports for the exhaust passage 19 are provided in the upper and side surfaces, the rear surface, and the front surface of the side. These outdoor suction port 20 and indoor suction port 21 leave one or two duct ducts easy to install under installation conditions, and the others are closed by a closing plate 22 (see FIG. 14). The exhaust chamber 17 is provided with a bypass passage that bypasses the primary passage of the heat exchanger 4 so as to be opened and closed by an opening / closing damper.
[0017]
As shown in FIG. 13, pre-filters 23 for removing dust are removably held by holding structures 24 on the inflow side of the air supply flow and the inflow side of the exhaust flow of the heat exchanger 4. The holding structure 24 of each pre-filter 23 is provided with an inner and outer two-stage holding frame portion 25, the pre-filter 23 is provided on the outer holding frame portion 25, and air purification such as a medium-high performance filter and a deodorizing filter is provided on the inner holding frame portion 25. Means 26 are retained as needed. Both the pre-filter 23 and the air cleaning means 26 can be maintained by attaching and detaching from an inspection port provided in front of the heat exchange casing 15. Note that the blower unit 3 and the heat exchange unit 5 may have a separate configuration or an integrated configuration.
[0018]
In this heat exchange ventilator, when it is desired to increase the processing air volume, the heat exchange unit 5 having the same shape and configuration as the heat exchange unit 5 is stacked on the heat exchange unit 5 and fixed to each other as shown in FIGS. Thus, a multi-stage hierarchical structure may be configured, and the rotation speed of each motor 12 of the air supply fan 1 and the exhaust fan 2 may be set to be increased by the inverter drive circuit 14. The outdoor suction port 20 and the indoor suction port 21 on the upper surface of the lower heat exchange unit 5 are closed by the lower surface of the upper heat exchange unit 5, and the air supply passages 18 and the exhaust passages 19 on the back side of each heat exchange unit 5. Are communicated with each of the air supply inlet and the exhaust inlet of the blower unit 3.
[0019]
As shown in FIG. 9, the air supply outlet 9 of the blower unit 3 is connected to the room by a duct 27 as shown in FIG. 9, and the exhaust outlet 10 also meets the conditions of the installation place. A convenient one is connected to the outside by a duct 27. Note that the exhaust outlet 10 may be connected to an air conditioner 28 installed indoors as shown in FIG. 16 by switching air path switching means or the like. As shown in FIG. 10, the outdoor suction port 20 of each heat exchange unit 5 is connected to the outside by a duct 27 as shown in FIG. 10, and the indoor suction port 21 also meets the conditions of the installation location. A convenient one is connected to the room by a duct 27. In addition, about the indoor suction inlet 21, as shown in FIG. 16, it may be connected to the blowing side of the air conditioner 28 installed indoors. Since the air supply outlet 9, the exhaust outlet 10, the outdoor inlet 20, and the indoor inlet 21 are provided in multiple directions as described above, the degree of freedom of duct piping is high, as shown in FIGS. 11, 12, 16, and 17. As described above, duct piping can be performed according to the conditions of the installation place, and the height of the connecting portion with the duct can be selected to some extent.
[0020]
Since the air supply blower 1 and the exhaust blower 2 are housed in a box-shaped casing 13 without an enlargement ratio, and are attached so that the rotation surface of each turbofan 11 is substantially horizontal in the center of each air chamber. The blowing conditions are the same for the supply air outlet 9 and the exhaust outlet 10 in any direction, and the degree of freedom of duct piping can be increased without hindering the blowing performance. If the air supply blower 1 and the exhaust air blower 2 are operated, the heat exchanger 4 of each heat exchange unit 5 performs ventilation by simultaneous supply / exhaust with continuous heat exchange between the air supply flow and the exhaust flow. . If the bypass passage of the heat exchange unit 5 is opened, the exhaust flow flows around the heat exchanger 4 and normal ventilation without heat exchange is performed. In order to clean the outside air supplied to the room, a medium / high performance filter may be mounted inside the pre-filter 23 on the secondary passage side of the heat exchanger 4 (see FIG. 13). Further, if a deodorizing filter is attached to the inside of the pre-filter 23 on the primary passage side, exhaust components to the outside of the store can be removed in a pet shop or the like, and odor problems and the like in the vicinity can be solved.
[0021]
When manufacturing heat exchange ventilators with different processing air volumes, it is only necessary to adopt a hierarchical structure of the number of heat exchange units 5 corresponding to the processing air volumes, and the productivity is high. And since the ventilation unit 3 and the heat exchange unit 5 can be made common and it is not necessary to prepare another part, cost is reduced significantly. This heat exchange ventilator has a large mass and requires strong packing materials for packaging. Further, a pallet is usually used for handling associated with transportation and installation, but a transport structure 8 capable of inserting a work tool such as a fork of a cargo handling device is integrally formed at the bottom of the blower unit 3. Therefore, it can be moved directly by the cargo handling device without using the pallet using the transport structure 8. Accordingly, the packing material can be simplified and the pallet is not required, so that it can contribute to the effective use of resources and the cost can be reduced.
[0022]
【The invention's effect】
According to the first aspect of the present invention, it is possible to improve the productivity and reduce the cost of the large-sized, floor-mounted heat exchange ventilator, and to set the rotation speed of the air supply fan and the exhaust fan to the heat exchange unit. Ru can be changed depending on the number.
[0024]
According to invention of Claim 2 , the freedom degree of duct piping increases with the said effect which concerns on Claim 1, and installation property improves.
[Brief description of the drawings]
FIG. 1 is a front view showing a heat exchange ventilator according to an embodiment.
FIG. 2 is a plan view showing the heat exchange ventilator according to the embodiment.
FIG. 3 is a right side view showing the heat exchange ventilator according to the embodiment.
FIG. 4 is a left side view showing the heat exchange ventilator according to the embodiment.
FIG. 5 is a front view showing a heat exchange unit of the heat exchange ventilator according to the embodiment.
FIG. 6 is a plan view showing a heat exchange unit of the heat exchange ventilator according to the embodiment.
FIG. 7 is a right side view showing a heat exchange unit of the heat exchange ventilator according to the embodiment.
FIG. 8 is a left side view showing a heat exchange unit of the heat exchange ventilator according to the embodiment.
FIG. 9 is a plan view showing a duct connection form of the air blowing unit of the heat exchange ventilation apparatus according to the embodiment.
FIG. 10 is a plan view showing a duct connection form of the heat exchange unit of the heat exchange ventilator according to the embodiment.
FIG. 11 is a front view showing an example of a duct connection form of the heat exchange ventilation apparatus according to the embodiment.
FIG. 12 is a front view showing an example of a duct connection form of the heat exchange ventilator according to the embodiment.
FIG. 13 is an enlarged configuration diagram showing a heat exchanger portion of the heat exchange ventilator according to the embodiment.
FIGS. 14A and 14B are a front view and a side view showing a hierarchical structure of the heat exchange ventilator according to the embodiment. FIGS.
FIGS. 15A and 15B are a front view and a side view showing a hierarchical structure of the heat exchange ventilator according to the embodiment. FIGS.
FIG. 16 is a front view showing an example of a duct connection form of the heat exchange ventilator according to the embodiment.
FIG. 17 is a front view showing an example of a duct connection form of the heat exchange ventilator according to the embodiment.
FIG. 18 is a side view showing a conventional heat exchange ventilator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air supply blower, 2 Exhaust air blower, 3 Blower unit, 4 Heat exchanger, 5 Heat exchange unit, 6 Blower casing, 8 Conveying structure, 9 Supply air outlet, 10 Exhaust air outlet, 11 Turbo fan, 12 Motor, 14 inverter drive circuit, 15 heat exchange casing, 18 air supply passage, 19 exhaust passage, 20 outdoor suction port, 21 indoor suction port, 23 prefilter, 24 holding structure, 26 air cleaning means.

Claims

An air supply fan with variable rotation speed and an exhaust fan with variable rotation speed are assembled separately in a single hexahedron air blowing casing, and an air supply inlet and an air supply port are provided on the air supply fan side of the air blowing casing. constitutes a gas outlet, on blowing unit wherein in the exhaust blower side to be installed on a floor which constitutes the exhaust outlet and the exhaust inlet, heat between the air intake into six tetrahedrons heat exchanger casing exhaust stream the heat exchange unit incorporating a heat exchanger for exchanging continuously constructed by overlapping viewed products, in its heat exchanger unit, through a supply air flow outlet side communicates with said air supply inlet of the blower unit An air supply passage and an exhaust passage through which an exhaust flow communicating with the exhaust outlet communicates with the exhaust suction port are configured, and the inlet of the supply passage is opened so as to communicate with the outside, and the inlet of the exhaust passage enters the room It is opened to allow communication, the heat exchanger unit The heat exchange unit of the same heat exchange unit isomorphic same configuration and structure as may stack an integer number above to vary the rotational speed of the exhaust blower and the air supply blower by number of stack of the heat exchanger unit Heat exchange ventilator.

2. The heat exchange ventilator according to claim 1, wherein a plurality of inlets of an air supply passage and an exhaust passage of the heat exchange unit are opened to be closable in different directions, A heat exchange ventilator in which a plurality of air supply outlets and exhaust outlets are opened in different directions so as to be closed .