JP6838983B2 - Heat dissipation unit heating system - Google Patents
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- 238000010438 heat treatment Methods 0.000 title claims description 66
- 230000017525 heat dissipation Effects 0.000 title claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 269
- 238000003303 reheating Methods 0.000 claims description 28
- 238000009423 ventilation Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000006870 function Effects 0.000 description 19
- 239000007789 gas Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 9
- 230000002265 prevention Effects 0.000 description 9
- 239000000567 combustion gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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Description
本発明は、給気口に取り付けられる放熱ユニットおよびこの放熱ユニットを用いた暖房システムに関する。 The present invention relates to a heat radiating unit attached to an air supply port and a heating system using the heat radiating unit.
近年の住宅には２４時間換気システムが設置されている。その代表的な構成は、図１１に示すように、たとえば、風呂場の天井裏等に換気ファン１０１を設け、この換気ファン１０１の吸込口１０２をトイレや洗面所、浴室などの天井（家の中心付近）に配置し、屋外に面する各居室の壁に給気口１０３を設け、換気ファン１０１の排気はダクトを通じて玄関先等に設けた排気口１０４から屋外に排出する、といった構成になっている。これは、排気はファンで行い、給気はファンを使用せずに自然に取込む方式（排気型）であり、一般の住宅で多く採用されている。 Recent homes are equipped with a 24-hour ventilation system. As shown in FIG. 11, for example, a ventilation fan 101 is provided behind the ceiling of a bathroom, and the suction port 102 of the ventilation fan 101 is provided on the ceiling of a toilet, a washroom, a bathroom, or the like (in a house). It is arranged near the center), an air supply port 103 is provided on the wall of each living room facing the outside, and the exhaust of the ventilation fan 101 is discharged to the outside from the exhaust port 104 provided at the entrance or the like through a duct. ing. This is a method in which exhaust is performed by a fan and air is taken in naturally without using a fan (exhaust type), which is widely used in ordinary houses.
図１２は、給気口１０３とこれに取り付けられる防火ダンパ１１０の一例を示している。給気口１０３は、通常、屋外に面する壁に直径１００mm（あるいは１５０mm）ほどの穴を貫通させ、これに給気ダクト１０６を挿入し、その屋内側の端部に給気口１０３を開け閉め可能な屋内側カバーユニット１０７を取り付け、屋外側の端部に、雨避けカバー１０８を取り付けて構成される。図１２の例では、防火ダンパ１１０は、給気口１０３の給気ダクト１０６に一部を挿入して取り付けられている。 FIG. 12 shows an example of the air supply port 103 and the fire damper 110 attached to the air supply port 103. The air supply port 103 usually has a hole having a diameter of about 100 mm (or 150 mm) penetrating the wall facing the outside, an air supply duct 106 is inserted into the hole, and the air supply port 103 is opened at the end on the indoor side thereof. The indoor side cover unit 107 that can be closed is attached, and the rain avoidance cover 108 is attached to the end on the outdoor side. In the example of FIG. 12, the fire prevention damper 110 is partially inserted and attached to the air supply duct 106 of the air supply port 103.
図１３は、開状態の防火ダンパ１１０を正面から見た図（同図（ａ））、開状態の防火ダンパ１１０を右側部から見た図(同図（ｂ）)、開状態の防火ダンパ１１０を上方から見た図（同図（ｃ））、封鎖状態の防火ダンパ１１０を右側部から見た図（同図（ｄ））、封鎖状態の防火ダンパ１１０を上方から見た図(同図（ｅ）)をそれぞれ示している。 FIG. 13 shows a front view of the open fire damper 110 (Fig. (A)), a view of the open fire damper 110 from the right side (Fig. 13), and an open fire damper. A view of the 110 from above (Fig. (C)), a view of the closed fire damper 110 from the right side (Fig. (D)), and a view of the closed fire damper 110 from above (the same). Figure (e)) is shown respectively.
防火ダンパ１１０は、給気ダクト１０６の中に密に挿入される円環状のベース１１１（図１２参照）と、該円環状のベース１１１にその円の中心を通るように架け渡されたダンパフレーム１１２と、ダンパフレーム１１２を軸として回動可能であってダンパフレーム１１２を中心に左右対象に取り付けられた２枚の半円形のダンパ板１１３と、該ダンパ板１１３をベース１１１の開口を閉じた封鎖位置（図１３（ｄ）（ｅ））に向けて付勢するバネ１１４と、２枚のダンパ板１１３を互いに近接して向き合う開位置(図１３（ａ）（ｂ）（ｃ）)に保持する温度ヒューズ１１５などで構成される。温度ヒューズ１１５は７２℃で溶融する。 The fireproof damper 110 has an annular base 111 (see FIG. 12) that is densely inserted into the air supply duct 106 and a damper frame that is bridged to the annular base 111 so as to pass through the center of the circle. The 112, two semi-circular damper plates 113 that are rotatable around the damper frame 112 and attached symmetrically to the left and right around the damper frame 112, and the damper plate 113 closed the opening of the base 111. At the open position (FIGS. 13 (a), (b), (c)) where the spring 114 urging toward the blocking position (FIGS. 13 (d) and (e)) and the two damper plates 113 face each other in close proximity to each other. It is composed of a temperature fuse 115 or the like to be held. The thermal fuse 115 melts at 72 ° C.
常時は、２枚のダンパ板１１３は開位置(図１３（ａ）（ｂ）（ｃ）)にあり、火災の熱で温度ヒューズ１１５が溶けると、バネ１１４に付勢されて２枚のダンパ板１１３が封鎖位置（図１３（ｄ）（ｅ））に変位してベース１１１の開口を閉じて炎や煙の通過を阻止する（特許文献１参照）。 At all times, the two damper plates 113 are in the open positions (FIGS. 13 (a), (b), and (c)), and when the thermal fuse 115 is melted by the heat of the fire, the two damper plates are urged by the spring 114. The plate 113 is displaced to the closed position (FIGS. 13 (d) and 13 (e)) to close the opening of the base 111 and prevent the passage of flame and smoke (see Patent Document 1).
ところで、冬場は給気口から冷たい外気が室内に入って来る。図１１の住宅では、リビングなど人が長く居る部屋は暖房されて暖かい。その暖かい空気は、住宅の中心の吸込口に向かってゆっくりと流れ、吸込口から吸い込まれて屋外に排出される。一方、洋室（１）、洋室（２）などは、寝室などに利用された場合、暖房費節約等の観点から、暖房されない場合が多い。また、リビングから暖かい空気も流れ込まないため、室温が低い。明け方になるとトイレなども冷えてしまう。そのため、たとえば、入浴後にそれらの部屋に入ったり、明け方に布団から出てトイレに行ったりすると、ヒートショックを受ける恐れがある。 By the way, in winter, cold outside air enters the room from the air supply port. In the house shown in FIG. 11, the living room and other rooms where people stay for a long time are heated and warm. The warm air slowly flows toward the suction port in the center of the house, is sucked in from the suction port, and is discharged to the outside. On the other hand, when the Western-style room (1) and the Western-style room (2) are used for a bedroom or the like, they are often not heated from the viewpoint of saving heating costs. In addition, the room temperature is low because warm air does not flow from the living room. At dawn, the toilets get cold. Therefore, for example, if you enter those rooms after taking a bath, or if you leave the futon at dawn and go to the bathroom, you may receive heat shock.
光熱費を抑えて、ヒートショックが防止される程度に暖房する方法として、風呂の残り湯が持つ熱量を利用する方法がある。たとえば、特許文献２には、浴槽内の湯を、ファンからの送風を受ける熱交換器に循環させる暖房システムが開示される。 As a method of suppressing utility costs and heating to the extent that heat shock is prevented, there is a method of utilizing the amount of heat of the remaining hot water in the bath. For example, Patent Document 2 discloses a heating system that circulates hot water in a bathtub to a heat exchanger that receives air blown from a fan.
しかし、この暖房システムでは、室温と浴槽内の残り湯との温度差が少ないため、放熱効率が低く、要求される熱量を得るには大型の熱交換器が必要であった。 However, in this heating system, since the temperature difference between the room temperature and the remaining hot water in the bathtub is small, the heat dissipation efficiency is low, and a large heat exchanger is required to obtain the required amount of heat.
暖房効率を高める技術として、下記特許文献３に、近接対向配置された２枚のパネル状の放熱器に温水を流し、その２枚のパネルの間に屋外からの空気を通して室内に導入する空調装置が開示される。 As a technique for improving heating efficiency, in Patent Document 3 below, an air conditioner in which hot water is passed through two panel-shaped radiators arranged close to each other and air from the outside is passed between the two panels to be introduced into the room. Is disclosed.
特許文献３に開示の技術を応用して、２４時間換気システムの給気口に、温水が循環する放熱器を取り付け、屋外からの冷たい空気を暖めてから室内に導入する暖房システムが考えられる。しかし、給気口は、前述した防火ダンパが取り付けられるように、防火の要となる箇所であり、給気口に放熱器を取り付けるにおいても防火に関連する機能を付加することが望まれる。 It is conceivable to apply the technique disclosed in Patent Document 3 to a heating system in which a radiator for circulating hot water is attached to the air supply port of the 24-hour ventilation system to warm the cold air from the outside and then introduce it into the room. However, the air supply port is a key point of fire prevention so that the above-mentioned fire damper can be attached, and it is desired to add a function related to fire prevention even when the radiator is attached to the air supply port.
本発明は、上記の要請に鑑みて成されたものであり、給気口に取り付けられて暖房機能を果たすと共に防火に寄与することのできる放熱ユニットおよびこれを用いた暖房システムを提供することを目的としている。 The present invention has been made in view of the above requirements, and provides a heat radiating unit that can be attached to an air supply port to perform a heating function and contribute to fire prevention, and a heating system using the same. I am aiming.
かかる目的を達成するための本発明の要旨とするところは、次の各項の発明に存する。 The gist of the present invention for achieving such an object lies in the inventions of the following items.
［１］排気は別途ファンで行い、壁に設けられた屋外と屋内を繋ぐ直径１００〜１５０ｍｍで一定断面の貫通穴状の給気口からファンを使用せずに給気する２４時間換気システムの前記給気口の中の前記一定断面の部分に取り付けられ、温水が通される放熱器と、
前記放熱器と前記給気口の内壁との隙間を不燃材で封鎖する封鎖部材と、
を有し、
前記放熱器は、マイクロ扁平管熱交換器であり、火災の炎を通さない消炎距離以下の間隔で、内部に温水が通される放熱板が配列されている、
ことを特徴とする放熱ユニット。
[1] Exhaust is performed by a separate fan, and a 24-hour ventilation system that supplies air without using a fan from a through-hole-shaped air supply port with a diameter of 100 to 150 mm and a fixed cross section that connects the outdoors and indoors provided on the wall. A radiator attached to the portion of the air supply port having a certain cross section and through which hot water can pass,
A sealing member that seals the gap between the radiator and the inner wall of the air supply port with a non-combustible material.
Have,
The radiator is a micro flat tube heat exchanger, and heat dissipation plates through which hot water passes are arranged at intervals of not more than a flame extinguishing distance that does not allow the flame of a fire to pass through.
A heat dissipation unit characterized by this.
上記発明では、給気口に取り付けられた放熱ユニットは、消炎距離以下の間隔で放熱板が配列されているので、火災の炎が給気口を通過することを阻止する。また、マイクロ扁平管熱交換器により少ない体積で良好な熱交換が可能になる。また、火災があっても内部に温水があるため放熱器の温度上昇が抑えられて溶融や変形が防止される。 In the above invention, in the heat radiating unit attached to the air supply port, since the heat radiating plates are arranged at intervals equal to or less than the flame extinguishing distance, the fire flame is prevented from passing through the air supply port. In addition, the micro flat tube heat exchanger enables good heat exchange with a small volume. In addition, even if there is a fire, the temperature rise of the radiator is suppressed because there is hot water inside, and melting and deformation are prevented.
［２］前記放熱板が２．２mm以下の間隔で配列されている
ことを特徴とする［１］に記載の放熱ユニット。
[2] The heat radiating unit according to [1], wherein the heat radiating plates are arranged at intervals of 2.2 mm or less.
上記発明では、放熱板の間隔を２．２mm以下にすれば、各種のガスによる炎の通過を阻止することができる。 In the above invention, if the distance between the heat radiating plates is 2.2 mm or less, the passage of flames by various gases can be prevented.
［３］［１］または［２］に記載の放熱ユニットと、
前記放熱ユニットの放熱器に温水を循環させる温水循環部と、
を有する
ことを特徴とする暖房システム。
[ 3 ] The heat dissipation unit according to [1] or [2] and
A hot water circulation unit that circulates hot water in the radiator of the heat dissipation unit,
A heating system characterized by having.
［４］前記温水は、浴槽内の浴槽水であり、
前記温水循環部は、
風呂の追い焚き機能を備えた風呂給湯器と、
前記風呂給湯器の風呂の追い焚き経路を、前記放熱器を経由する経路と前記放熱器をバイパスする経路に切り換える切り替え弁を有し、
前記放熱器に浴槽水を循環させる場合に、前記追い焚き経路を、前記放熱器を経由する経路に設定して風呂の循環ポンプを駆動する
ことを特徴とする［３］に記載の暖房システム。
[ 4 ] The hot water is bathtub water in the bathtub.
The hot water circulation part
A bath water heater with a bath reheating function and
It has a switching valve that switches the reheating path of the bath of the bath water heater to a path that passes through the radiator and a path that bypasses the radiator.
The heating system according to [3 ], wherein when the bathtub water is circulated through the radiator, the reheating path is set to a path passing through the radiator to drive the circulation pump of the bath.
上記発明では、風呂の残り湯を利用して放熱器による暖房を行う。
［５］排気は別途ファンで行い、壁に設けられた屋外と屋内を繋ぐ貫通穴状の給気口からファンを使用せずに給気する２４時間換気システムの前記給気口の中に取り付けられ、温水が通される放熱器と、前記放熱器と前記給気口の内壁との隙間を不燃材で封鎖する封鎖部材とを有する放熱ユニットと、
前記放熱ユニットの放熱器に温水を循環させる温水循環部と、
を有し、
前記温水は、浴槽内の浴槽水であり、
前記温水循環部は、風呂の追い焚き機能を備えた風呂給湯器と、前記風呂給湯器の風呂の追い焚き経路を、前記放熱器を経由する経路と前記放熱器をバイパスする経路に切り換える切り替え弁を有し、前記放熱器に浴槽水を循環させる場合に、前記追い焚き経路を、前記放熱器を経由する経路に設定して風呂の循環ポンプを駆動し、
前記放熱器は、火災の炎を通さない消炎距離以下の間隔で放熱板が配列されており、
前記放熱器に浴槽水を循環させる動作中に前記放熱器から戻ってくる浴槽水の温度の上昇に基づいて火災を検知して警報を発する
ことを特徴とする暖房システム。
［６］前記検知した場合に、前記温水循環部による送水量を増やす
ことを特徴とする［５］に記載の暖房システム。
［７］前記給気口は、直径１００〜１５０ｍｍで一定断面の貫通穴状であり、
前記放熱器は、前記放熱板の内部に温水が通されるマイクロ扁平管熱交換器であって、前記給気口の中の前記一定断面の部分に取り付けられる
ことを特徴とする［５］または［６］に記載の暖房システム。
In the above invention, the remaining hot water of the bath is used for heating by a radiator.
[5] Exhaust is performed by a separate fan, and it is installed in the air supply port of a 24-hour ventilation system that supplies air without using a fan from a through-hole-shaped air supply port provided on the wall that connects the outside and the inside. A heat dissipation unit having a radiator through which hot water is passed, and a sealing member for sealing the gap between the radiator and the inner wall of the air supply port with a noncombustible material.
A hot water circulation unit that circulates hot water in the radiator of the heat dissipation unit,
Have,
The hot water is bathtub water in the bathtub, and is
The hot water circulation unit is a bath water heater having a bath reheating function, and a switching valve that switches the bath reheating route of the bath water heater to a route that passes through the radiator and a route that bypasses the radiator. When the bathtub water is circulated through the radiator, the reheating path is set to the path passing through the radiator to drive the circulation pump of the bath.
In the radiator, heat dissipation plates are arranged at intervals equal to or less than the flame extinguishing distance that does not allow the flame of a fire to pass through.
Warm tufts system that is characterized in that for sounding an alarm upon detection of fire based on the radiator the temperature rise of the bath water returning from the radiator during operation for circulating the bath water.
[ 6 ] The heating system according to [5 ], wherein when the detection is made, the amount of water supplied by the hot water circulation unit is increased.
[7] The air supply port has a diameter of 100 to 150 mm and a through hole shape having a constant cross section.
The radiator is a micro flat tube heat exchanger through which hot water is passed inside the radiator plate, and is attached to a portion of the constant cross section in the air supply port.
The heating system according to [5] or [6].
本発明に係る放熱ユニットおよび暖房システムによれば、給気口に取り付けられて暖房機能を果たすと共に防火に寄与することができる。 According to the heat dissipation unit and the heating system according to the present invention, it can be attached to an air supply port to perform a heating function and contribute to fire prevention.
以下、図面に基づき本発明の実施の形態を説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
本実施の形態に係る放熱ユニットは、壁を貫通して屋外と屋内を接続する給気口に取り付けられる。放熱ユニットは、温水が通される放熱器と、放熱器と給気口の内壁との隙間を不燃材で封鎖する封鎖部材と、を有し、放熱器は火災の炎を通さない消炎距離以下の間隔で放熱板を配列して構成される。本実施の形態に係る暖房システムは、この放熱ユニットと、この放熱ユニットに温水を循環させる温水循環部を備える。 The heat radiating unit according to the present embodiment is attached to an air supply port that penetrates a wall and connects the outside and the inside. The heat radiating unit has a heat radiating device through which hot water passes and a sealing member that seals the gap between the heat radiating device and the inner wall of the air supply port with a non-combustible material. It is configured by arranging heat dissipation plates at intervals of. The heating system according to the present embodiment includes the heat radiating unit and a hot water circulation unit that circulates hot water in the heat radiating unit.
本実施の形態では、放熱器に循環させる温水は浴槽に残っている浴槽水とし、温水循環部の機能は風呂給湯器が備える。 In the present embodiment, the hot water circulated in the radiator is the bathtub water remaining in the bathtub, and the function of the hot water circulation unit is provided in the bath water heater.
図１は、本発明の実施の形態に係る放熱ユニット１０を給気口１０３に取り付けた状態の一例を示している。給気口１０３は、背景技術で説明したものと同様に、排気はファンで行い、給気はファンを使用せずに自然に取込む方式（排気型）の２４時間換気システムにおける給気口１０３である。 FIG. 1 shows an example of a state in which the heat dissipation unit 10 according to the embodiment of the present invention is attached to the air supply port 103. The air supply port 103 is an air supply port 103 in a 24-hour ventilation system of a method (exhaust type) in which exhaust is performed by a fan and air is naturally taken in without using a fan, as described in the background technology. Is.
給気口１０３は、屋外に面する壁に直径１００mm（あるいは１５０mm）ほどの穴を貫通させ、この穴に給気ダクト１０６を挿入し、その屋内側の端部に開け閉め可能な屋内側カバーユニット１０７を取り付け、屋外側の端部に、雨避けカバー１０８を取り付けて構成される。防火ダンパ１１０は、図１３に示すものと同一であり、その説明は省略する。 The air supply port 103 has a hole having a diameter of about 100 mm (or 150 mm) penetrating the wall facing the outside, an air supply duct 106 is inserted into this hole, and an indoor side cover that can be opened and closed at the indoor end thereof. The unit 107 is attached, and the rain cover 108 is attached to the end on the outdoor side. The fire damper 110 is the same as that shown in FIG. 13, and the description thereof will be omitted.
給気ダクト１０６には、防火ダンパ１１０より屋外側の箇所に、本実施の形態に係る放熱ユニット１０が取り付けてある。 The heat radiating unit 10 according to the present embodiment is attached to the air supply duct 106 at a location on the outdoor side of the fire damper 110.
図２は、放熱ユニット１０とその周囲の給気ダクト１０６を示す斜視図である。放熱ユニット１０は、給気ダクト１０６に密に内挿される円板形状のベース板１１と、ベース板１１に大きく開設された矩形の貫通穴に嵌めこまれたマイクロ扁平管熱交換器１２を備えている。なお、以後、放熱ユニット１０のマイクロ扁平管熱交換器１２を放熱器１２とも記す。 FIG. 2 is a perspective view showing the heat dissipation unit 10 and the air supply duct 106 around the heat dissipation unit 10. The heat dissipation unit 10 includes a disk-shaped base plate 11 that is densely inserted into the air supply duct 106, and a micro flat tube heat exchanger 12 that is fitted into a rectangular through hole that is largely formed in the base plate 11. ing. Hereinafter, the micro flat tube heat exchanger 12 of the heat dissipation unit 10 will also be referred to as a radiator 12.
ベース板１１は不燃材で構成される。たとえば、ベース板１１は鋼鈑などで構成される。ベース板１１は、放熱器（マイクロ扁平管熱交換器）１２と給気口１０３の内壁との隙間を不燃材で封鎖する。 The base plate 11 is made of a non-combustible material. For example, the base plate 11 is made of a steel plate or the like. The base plate 11 closes the gap between the radiator (micro flat tube heat exchanger) 12 and the inner wall of the air supply port 103 with a non-combustible material.
図３は、放熱器であるマイクロ扁平管熱交換器１２の概略を示す断面図および２枚のマイクロ扁平管１５を取り出して示す斜視図ある。マイクロ扁平管熱交換器１２は、並行に配置した入水管１３と出水管１４との間に、薄く扁平した管路であるマイクロ扁平管１５を所定間隔で多数並列に接続して構成される。各マイクロ扁平管１５は放熱器１２の放熱板になっている。 FIG. 3 is a cross-sectional view showing an outline of a micro flat tube heat exchanger 12 which is a radiator, and a perspective view showing two micro flat tubes 15 taken out. The micro-flat pipe heat exchanger 12 is configured by connecting a large number of micro-flat pipes 15 which are thin and flat pipes in parallel between the water inlet pipe 13 and the water outlet pipe 14 arranged in parallel at predetermined intervals. Each micro flat tube 15 is a heat radiating plate of the radiator 12.
入水管１３から到来した温水は、分岐して各マイクロ扁平管１５の中を流れ、各マイクロ扁平管１５の他端側で出水管１４に流れ出て合流し、出水管１４の出口から流出する。 The hot water arriving from the water inlet pipe 13 branches and flows through each of the micro flat pipes 15, flows out to the water outlet pipe 14 at the other end side of each micro flat pipe 15, merges, and flows out from the outlet of the water outlet pipe 14.
本例のマイクロ扁平管１５は、長さL＝６８mm、幅W＝１５mm、厚みH=０．７mm（板厚ｔ＝０．２mm、内部の水路の厚みはH=０．３mm）である。配列されたマイクロ扁平管１５同士の隙間D(間隔)は１．３mm程度になっている。通気抵抗は２０Pa（２５m3/h時）以下にする。なお、風呂ポンプ６５による送水では、最大で０．１MPa程度の耐水圧があればよいので、マイクロ扁平管１５の板厚は０．２mm未満などの非常に薄い鋼鈑で問題ない。 The microflat tube 15 of this example has a length L = 68 mm, a width W = 15 mm, and a thickness H = 0.7 mm (plate thickness t = 0.2 mm, and the thickness of the internal water channel is H = 0.3 mm). The gap D (interval) between the arranged micro flat tubes 15 is about 1.3 mm. Ventilation resistance should be 20 Pa (at 25 m 3 / h) or less. For water supply by the bath pump 65, a water pressure resistance of about 0.1 MPa at the maximum is sufficient, so that there is no problem with a very thin steel plate having a plate thickness of less than 0.2 mm.
配列されたマイクロ扁平管１５同士の隙間Dは、２．２mm以下、好ましくは１．８mm以下である。このような隙間でマイクロ扁平管１５を配列すれば、マイクロ扁平管１５とマイクロ扁平管１５の隙間Dを炎が通り抜けられなくなり、防火効果を得ることができる。 The gap D between the arranged microflat tubes 15 is 2.2 mm or less, preferably 1.8 mm or less. If the microflat tubes 15 are arranged in such a gap, the flame cannot pass through the gap D between the microflat tube 15 and the microflat tube 15, and a fire prevention effect can be obtained.
図４は、定圧下での（大気圧下での）各種のガスにおける当量比と消炎距離の関係を示すグラフである。マイクロ扁平管１５とマイクロ扁平管１５の隙間Dを各グラフの最小の消炎距離より小さくすれば、そのガスの炎はマイクロ扁平管１５とマイクロ扁平管１５の隙間を通り抜けられなくなる。消炎距離はガス成分や等量比、火炎の圧力などにより変化するが、多くの火災で想定される火炎では、配列されたマイクロ扁平管１５同士の隙間Dは、２．２mm以下、好ましくは１．８mm以下にすれば、火災の炎を通さなくなる。 FIG. 4 is a graph showing the relationship between the equivalent ratio and the flame extinguishing distance in various gases (under atmospheric pressure) under constant pressure. If the gap D between the microflat tube 15 and the microflat tube 15 is made smaller than the minimum flame extinguishing distance in each graph, the gas flame cannot pass through the gap between the microflat tube 15 and the microflat tube 15. The extinguishing distance varies depending on the gas component, equal volume ratio, flame pressure, etc., but in the flame assumed in many fires, the gap D between the arranged micro flat tubes 15 is 2.2 mm or less, preferably 1. If it is set to 0.8 mm or less, the flame of the fire will not pass through.
このように、放熱ユニット１０では、マイクロ扁平管１５同士の間隔を消炎距離以下にすると共に、放熱器（マイクロ扁平管熱交換器）１２と給気口１０３の内側との隙間を不燃材のベース板１１で塞いでいるので、火災時に炎が給気口１０３を通過することを防ぎ、延焼を防いで、防火ダンパ１１０を補助することができる。また、温度ヒューズ１１５が溶けて防火ダンパ１１０が作動する前の突然の炎も通過させない効果がある。 In this way, in the heat radiating unit 10, the distance between the micro flat tubes 15 is set to be equal to or less than the flame extinguishing distance, and the gap between the radiator (micro flat tube heat exchanger) 12 and the inside of the air supply port 103 is made a base of noncombustible material. Since it is closed by the plate 11, it is possible to prevent the flame from passing through the air supply port 103 in the event of a fire, prevent the spread of fire, and assist the fire damper 110. Further, there is an effect that the sudden flame before the thermal fuse 115 is melted and the fire damper 110 is activated is not passed.
フィンチューブを用いる放熱器においてもフィンの間隔を消炎距離以下にすれば上記と同様の効果を得ることができるが、フィンは構造的に弱いため、何らかの外力を受けて、火災の発生時に既に変形して隙間が広がっている可能性がある。また、火災の炎の熱によって溶融したり変形したりして消炎効果が継続しない。 Even in a radiator using a fin tube, the same effect as above can be obtained by setting the fin spacing to the flame extinguishing distance or less, but since the fins are structurally weak, they are already deformed when a fire breaks out due to some external force. There is a possibility that the gap is widening. In addition, the flame extinguishing effect does not continue because it melts or deforms due to the heat of the flame of the fire.
これに対してマイクロ扁平管１５を用いた放熱ユニット１０では、マイクロ扁平管熱交換器１２の各マイクロ扁平管１５の形状は外力で容易に変形することなく安定している。さらに中が水で満たされているので、温度が上がり難い。なお、消炎距離は遮蔽物の温度が低いほど長くなるので、温度が上がり難いことは、消炎効果にとって有利に働く。 On the other hand, in the heat dissipation unit 10 using the micro flat tube 15, the shape of each micro flat tube 15 of the micro flat tube heat exchanger 12 is stable without being easily deformed by an external force. Furthermore, since the inside is filled with water, the temperature does not rise easily. Since the flame extinguishing distance becomes longer as the temperature of the shield is lower, it is advantageous for the flame extinguishing effect that the temperature does not rise easily.
このように、放熱板としてのマイクロ扁平管１５を消炎距離以下の隙間で配列した放熱器１２を有する放熱ユニット１０は、火災時に炎が給気口１０３を通過することを防ぎ、延焼を防いで防火ダンパ１１０を補助することができる。 In this way, the heat radiating unit 10 having the radiator 12 in which the micro flat tubes 15 as the heat radiating plates are arranged with a gap equal to or less than the flame extinguishing distance prevents the flame from passing through the air supply port 103 in the event of a fire and prevents the spread of fire. The fire damper 110 can be assisted.
図５は、本実施の形態に係る暖房システムの温水循環部などの機能を果たす風呂給湯器３０の一例を示す概略構成図である。風呂給湯器３０は、給水を加熱して浴室内のシャワーや台所の水栓等へお湯を供給（出湯）する給湯機能、浴槽２へ湯を落とし込み湯張りする注湯機能、浴槽２内の湯水を追い焚きして昇温する追い焚き機能などを備えている。また、浴槽２に設定温度の湯を設定水位になるように自動的に湯張りし、湯張り完了後は設定水位・設定温度が所定時間（たとえば、４時間）に渡って維持されるように追い焚き等を行う風呂の自動運転機能を備えている。さらに、浴槽２内の浴槽水を、給気口１０３に設けられた放熱ユニット１０の放熱器（マイクロ扁平管熱交換器）１２に循環させて部屋を暖房する浴湯暖房機能を有する。 FIG. 5 is a schematic configuration diagram showing an example of a bath water heater 30 that functions as a hot water circulation unit of the heating system according to the present embodiment. The bath water heater 30 has a hot water supply function that heats the water supply and supplies (exhausts) hot water to a shower in the bathroom, a faucet in the kitchen, etc., a hot water pouring function that drops hot water into the bathtub 2 and fills it with hot water, and hot water in the bathtub 2. It is equipped with a reheating function that reheats and raises the temperature. In addition, hot water at the set temperature is automatically filled in the bathtub 2 so that the water level reaches the set water level, and after the hot water filling is completed, the set water level and the set temperature are maintained for a predetermined time (for example, 4 hours). It is equipped with an automatic operation function for baths that reheat. Further, it has a bath water heating function of circulating the bath water in the bathtub 2 to the radiator (micro flat tube heat exchanger) 12 of the heat dissipation unit 10 provided in the air supply port 103 to heat the room.
風呂給湯器３０は、燃焼ファン３１が送風する空気が下方から送り込まれ、上部に排気口３２が設けられた燃焼室３３を備えている。燃焼室３３内には、その下部に第１バーナ３４と第２バーナ３５が配置され、第１バーナ３４と第２バーナ３５の上方には給湯用の第１熱交換器３６が、第２バーナ３５の上方には追い焚き用の第２熱交換器３８がそれぞれ配置されている。第１熱交換器３６は、バーナの近くに配置された顕熱熱交換器３６ａと、顕熱熱交換器３６ａの下流に配置された潜熱熱交換器３６ｂとから構成される。第２熱交換器３８は顕熱熱交換器のみで構成される。 The bath water heater 30 includes a combustion chamber 33 in which the air blown by the combustion fan 31 is sent from below and an exhaust port 32 is provided at the upper portion. In the combustion chamber 33, a first burner 34 and a second burner 35 are arranged below the first burner 34, and a first heat exchanger 36 for hot water supply is located above the first burner 34 and the second burner 35. A second heat exchanger 38 for reheating is arranged above the 35. The first heat exchanger 36 is composed of a sensible heat exchanger 36a arranged near the burner and a latent heat exchanger 36b arranged downstream of the sensible heat exchanger 36a. The second heat exchanger 38 is composed of only a sensible heat exchanger.
給水元から供給される給水は、給水管４１、第１熱交換器３６が有する水管（潜熱熱交換器３６ｂ、顕熱熱交換器３６ａの順）および給湯管４２を経て出湯される。給水管４１には、水量センサ５１、およびその下流に、水量を調整(制限)するための水量サーボ５２が設けてある。給水管４１と給湯管４２は、水量サーボ５２の直ぐ下流でバイパス管４３を通じて接続されており、バイパス管４３の途中には、バイパス管４３に流す水量を調整するバイパスサーボ５３が設けてある。 The water supplied from the water supply source is discharged through the water supply pipe 41, the water pipe (in this order of the latent heat exchanger 36b and the sensible heat exchanger 36a) of the first heat exchanger 36, and the hot water supply pipe 42. The water supply pipe 41 is provided with a water amount sensor 51 and a water amount servo 52 for adjusting (restricting) the amount of water downstream of the water amount sensor 51. The water supply pipe 41 and the hot water supply pipe 42 are connected to each other through a bypass pipe 43 immediately downstream of the water amount servo 52, and a bypass servo 53 for adjusting the amount of water flowing through the bypass pipe 43 is provided in the middle of the bypass pipe 43.
給湯管４２には第１熱交換器３６（顕熱熱交換器３６ａ）を出た直後の湯温を検出する熱交温度センサ６１、バイパス管４３からの給水が合流した後の湯温を検出する給湯温度センサ６２が設けてある。 The hot water supply pipe 42 has a heat exchange temperature sensor 61 that detects the hot water temperature immediately after leaving the first heat exchanger 36 (sensible heat exchanger 36a), and detects the hot water temperature after the water supply from the bypass pipe 43 merges. A hot water supply temperature sensor 62 is provided.
風呂の追い焚き経路は、浴槽２の浴湯取込口３から第２熱交換器３８の入側に通じる風呂戻り管４５と、第２熱交換器３８の水管と、第２熱交換器３８の出側から浴槽２の浴湯流出口４に至る風呂往き管４６で構成される。風呂戻り管４５の途中には、浴槽２側から順に、浴湯切替ユニット７０、風呂戻り温度センサ６４、風呂ポンプ６５、水位センサ６６、風呂水流スイッチ６７が設けてある。風呂往き管４６の途中には風呂往き温度センサ６８が設けてある。 The reheating route of the bath is the bath return pipe 45 leading from the bath water intake port 3 of the bathtub 2 to the entrance side of the second heat exchanger 38, the water pipe of the second heat exchanger 38, and the second heat exchanger 38. It is composed of a bath going pipe 46 from the outlet side of the bathtub 2 to the bath water outlet 4 of the bathtub 2. In the middle of the bath return pipe 45, a bath water switching unit 70, a bath return temperature sensor 64, a bath pump 65, a water level sensor 66, and a bath water flow switch 67 are provided in order from the bathtub 2 side. A bath temperature sensor 68 is provided in the middle of the bath pipe 46.
給湯温度センサ６２の下流で給湯管４２から分岐した注湯管４７は風呂戻り温度センサ６４の箇所で風呂戻り管４５に合流する。注湯管４７の途中には、逆止弁５４および該注湯管４７の管路を開閉する注湯弁５５が設けてある。 The hot water pouring pipe 47 branched from the hot water supply pipe 42 downstream of the hot water supply temperature sensor 62 joins the bath return pipe 45 at the location of the bath return temperature sensor 64. A check valve 54 and a pouring valve 55 for opening and closing the pipeline of the pouring pipe 47 are provided in the middle of the pouring pipe 47.
さらに、風呂戻り管４５の途中に介挿された浴湯切替ユニット７０は、風呂熱利用三方弁７１を有する。風呂熱利用三方弁７１は、浴槽２側の風呂戻り管４５が接続された第１接続口、風呂給湯器３０側の風呂戻り管４５が接続された第３接続口、放熱戻り管７４が接続された第２接続口を有する。風呂熱利用三方弁７１は、第１接続口と第３接続口を連通させ第２接続口を切り離した状態、すなわち、浴槽２側の風呂戻り管４５と風呂給湯器３０側の風呂戻り管４５を接続し、放熱戻り管７４を切り離した状態（風呂側）と、第２接続口と第３接続口を連通させ第１接続口を切り離した状態、すなわち、風呂給湯器３０側の風呂戻り管４５を放熱戻り管７４に接続し、風呂側の風呂戻り管４５を切り離した状態（暖房側）とに接続状態を切り換える。 Further, the bath water switching unit 70 inserted in the middle of the bath return pipe 45 has a bath heat utilization three-way valve 71. The bath heat utilization three-way valve 71 is connected to the first connection port to which the bath return pipe 45 on the bathtub 2 side is connected, the third connection port to which the bath return pipe 45 on the bath water heater 30 side is connected, and the heat dissipation return pipe 74. It has a second connection port. The bath heat utilization three-way valve 71 has a state in which the first connection port and the third connection port are communicated with each other and the second connection port is separated, that is, the bath return pipe 45 on the bath 2 side and the bath return pipe 45 on the bath water heater 30 side. The state where the heat radiation return pipe 74 is disconnected (bath side) and the state where the second connection port and the third connection port are communicated and the first connection port is disconnected, that is, the bath return pipe on the bath water heater 30 side. The 45 is connected to the heat radiation return pipe 74, and the connection state is switched to the state in which the bath return pipe 45 on the bath side is disconnected (heating side).
放熱往き管７３は風呂熱利用三方弁７１の浴槽２側で風呂戻り管４５から分岐して、放熱ユニット１０の放熱器１２の入側に接続されている。放熱戻り管７４は放熱器１２の出側に接続され、他端は風呂熱利用三方弁７１の第２接続口に接続されている。複数の放熱ユニット１０を設置する場合、放熱往き管７３と放熱戻り管７４の間に各放熱ユニット１０の放熱器１２が並列に接続される。 The heat radiating outbound pipe 73 branches off from the bath return pipe 45 on the bathtub 2 side of the bath heat utilization three-way valve 71, and is connected to the entrance side of the radiator 12 of the heat radiating unit 10. The heat dissipation return pipe 74 is connected to the outlet side of the radiator 12, and the other end is connected to the second connection port of the bath heat utilization three-way valve 71. When a plurality of heat radiating units 10 are installed, the heat radiating device 12 of each heat radiating unit 10 is connected in parallel between the heat radiating outbound pipe 73 and the heat radiating return pipe 74.
燃焼ガスの供給経路は次の様になっている。燃焼ガスの供給元に接続されるガス供給管８１の途中には、供給元からの燃焼ガスを遮断するか否かを切り替える元ガス電磁弁８２が設けられ、その下流には、供給する燃焼ガスの量を任意に調整するためのガス比例弁８３が設けてある。ガス供給管８１は、ガス比例弁８３の下流で２つに分岐し、それぞれガス電磁弁を介して第１バーナ３４および第２バーナ３５に接続されている。 The supply path of combustion gas is as follows. A source gas solenoid valve 82 for switching whether or not to shut off the combustion gas from the supply source is provided in the middle of the gas supply pipe 81 connected to the combustion gas supply source, and the combustion gas to be supplied is provided downstream thereof. A gas proportional valve 83 for arbitrarily adjusting the amount of gas is provided. The gas supply pipe 81 is branched into two downstream of the gas proportional valve 83, and is connected to the first burner 34 and the second burner 35, respectively, via a gas solenoid valve.
このほか、風呂給湯器３０は、外気温を検出する外気温度センサ６３を有する。さらに、風呂給湯器３０は、当該風呂給湯器３０の動作を制御する制御部９０を備える。制御部９０はＣＰＵ（Central Processing Unit）、ＲＯＭ（Read Only Memory）、ＲＡＭ（Random Access Memory）などを主要部とする回路で構成され、ＲＯＭに格納されたプログラムに従ってＣＰＵが各種の処理を実行することで風呂給湯器３０としての動作が実現される。制御部９０は、風呂ポンプ６５の動作を制御する機能を果たす。 In addition, the bath water heater 30 has an outside air temperature sensor 63 that detects the outside air temperature. Further, the bath water heater 30 includes a control unit 90 that controls the operation of the bath water heater 30. The control unit 90 is composed of a circuit whose main unit is a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc., and the CPU executes various processes according to a program stored in the ROM. As a result, the operation as the bath water heater 30 is realized. The control unit 90 functions to control the operation of the bath pump 65.
制御部９０には、使用者から各種の設定や運転の指示を受ける機能、設定内容や運転状況を表示する機能等を備えたリモートコントローラ９１(リモコンと略称する)が通信線を介して接続される。ここでは、リモートコントローラ９１として、風呂に設置された風呂リモコン、台所等に設置されるメインリモコンなどがある。リモートコントローラ９１は各種の警告をユーザに報知する報知部としての機能を果たす。 A remote controller 91 (abbreviated as a remote controller) having a function of receiving various settings and operation instructions from the user, a function of displaying the setting contents and the operation status, and the like is connected to the control unit 90 via a communication line. To. Here, as the remote controller 91, there are a bath remote controller installed in a bath, a main remote controller installed in a kitchen, and the like. The remote controller 91 functions as a notification unit that notifies the user of various warnings.
次に、給湯器１０が行う給湯動作、注湯動作、追い焚き動作、放熱ユニット１０の放熱器１２を用いた暖房動作について説明する。 Next, the hot water supply operation, the hot water pouring operation, the reheating operation, and the heating operation using the heat radiator 12 of the heat radiating unit 10 performed by the water heater 10 will be described.
＜給湯動作＞
出湯栓が開かれて水量センサ５１が通水を検出すると制御部９０は、燃焼ファン３１をオンし、第１バーナ３４および第２バーナ３５を点火してこれらで燃焼ガスを燃焼させる。給水元から流入する給水は、第１熱交換器３６を通る際に加熱され、バイパスサーボ５３で給水と混合され、設定された給湯温度の湯にされて出湯栓から出湯する。
<Hot water supply operation>
When the hot water tap is opened and the water amount sensor 51 detects water flow, the control unit 90 turns on the combustion fan 31 and ignites the first burner 34 and the second burner 35 to burn the combustion gas. The water supply flowing from the water supply source is heated when passing through the first heat exchanger 36, mixed with the water supply by the bypass servo 53, made into hot water at the set hot water supply temperature, and discharged from the hot water tap.
＜注湯動作＞
注湯動作は、リモートコントローラ９１（風呂リモコンやメインリモコン）から、風呂の自動運転や注湯の指示を受けた場合に実行される。注湯動作では、制御部９０は、注湯弁５５を開くと共に燃焼ファン３１を作動させ、第１バーナ３４、第２バーナ３５を点火して燃焼ガスを燃焼させる。これにより、給湯動作と同様にして生成された湯が注湯管４７を通じて風呂戻り管４５に流れ込み、該風呂戻り管４５および風呂往き管４６を通じて浴槽２に落とし込まれる。なお、注湯動作では、浴湯切替ユニット７０の風呂熱利用三方弁７１は風呂側（第１接続口と第３接続口を連通させ第２接続口を切り離した状態）に設定される。
<Pouring operation>
The hot water pouring operation is executed when an instruction for automatic bath operation or hot water pouring is received from the remote controller 91 (bath remote controller or main remote controller). In the hot water pouring operation, the control unit 90 opens the hot water pouring valve 55 and operates the combustion fan 31 to ignite the first burner 34 and the second burner 35 to burn the combustion gas. As a result, the hot water generated in the same manner as the hot water supply operation flows into the bath return pipe 45 through the hot water pouring pipe 47, and is dropped into the bathtub 2 through the bath return pipe 45 and the bath going pipe 46. In the hot water pouring operation, the bath heat utilization three-way valve 71 of the bath water switching unit 70 is set on the bath side (a state in which the first connection port and the third connection port are communicated with each other and the second connection port is separated).
＜追い焚き動作＞
追い焚き動作は、風呂の自動運転の指示に基づいて上記の注湯動作が行われて設定水位に湯張りされた後、浴槽２内の浴槽水の温度を風呂設定温度まで昇温させるとき、あるいは、風呂の自動運転中に浴槽２内の湯水を風呂設定温度に維持するために昇温するとき、あるいは、使用者から追い焚きの指示を受けた場合に実行される。
<Reheating operation>
The reheating operation is when the temperature of the bathtub water in the bathtub 2 is raised to the set bath temperature after the above pouring operation is performed based on the instruction of the automatic operation of the bath and the water is filled with the set water level. Alternatively, it is executed when the temperature of the hot water in the bathtub 2 is raised to maintain the bath set temperature during the automatic operation of the bath, or when a reheating instruction is received from the user.
追い焚き動作では、制御部９０は、風呂ポンプ６５を作動させると共に、燃焼ファン３１を作動させ第２バーナ３５を点火し該第２バーナ３５で燃焼ガスを燃焼させる。風呂ポンプ６５の作用により、浴槽２内の湯が追い焚き経路を循環し、その途中の第２熱交換器３８を通る際に第２バーナ３５からの熱で加熱される。なお、追い焚き動作では、浴湯切替ユニット７０の風呂熱利用三方弁７１は風呂側に設定される。 In the reheating operation, the control unit 90 operates the bath pump 65 and the combustion fan 31 to ignite the second burner 35 and burn the combustion gas in the second burner 35. By the action of the bath pump 65, the hot water in the bathtub 2 circulates in the reheating path, and is heated by the heat from the second burner 35 when passing through the second heat exchanger 38 on the way. In the reheating operation, the bath heat utilization three-way valve 71 of the bath water switching unit 70 is set on the bath side.
＜放熱器を用いた暖房動作＞
放熱ユニット１０の放熱器１２を用いた暖房動作では、風呂の自動運転の終了後に浴槽２の中に残っている浴槽水の熱を利用して暖房する。暖房動作では、浴湯切替ユニット７０の風呂熱利用三方弁７１を暖房側（第３接続口と第２接続口を連通させ第１接続口を切り離した状態）に切り替えて風呂ポンプ６５を駆動する。これにより、浴槽２内の湯が浴湯取込口３から取り込まれ、風呂戻り管４５の途中で放熱往き管７３側に流れ、放熱ユニット１０の放熱器（マイクロ扁平管熱交換器）１２および放熱戻り管７４を経て、風呂熱利用三方弁７１の箇所で風呂戻り管４５の風呂給湯器３０側（第２接続口から第３接続口）へ流れ込み、第２熱交換器３８、風呂往き管４６を通じて浴湯流出口４から浴槽２に流出する、という経路で浴槽水が循環する。
<Heating operation using a radiator>
In the heating operation using the radiator 12 of the heat radiating unit 10, the heat of the bathtub water remaining in the bathtub 2 is used for heating after the automatic operation of the bath is completed. In the heating operation, the bath heat utilization three-way valve 71 of the bath water switching unit 70 is switched to the heating side (a state in which the third connection port and the second connection port are communicated and the first connection port is separated) to drive the bath pump 65. .. As a result, the hot water in the bathtub 2 is taken in from the bathtub hot water intake port 3 and flows to the heat dissipation going pipe 73 side in the middle of the bath return pipe 45, and the radiator (micro flat tube heat exchanger) 12 of the heat dissipation unit 10 and After passing through the heat dissipation return pipe 74, it flows into the bath water heater 30 side (from the second connection port to the third connection port) of the bath return pipe 45 at the location of the three-way valve 71 that utilizes bath heat, and the second heat exchanger 38 and the bath going pipe. Bathtub water circulates through a route of flowing out from the bathtub outlet 4 to the bathtub 2 through 46.
２４時間換気システムの作用で、常に、給気口１０３を通じて外気が屋内に取り込まれているので、暖房運転中は、給気口１０３に取り付けた放熱ユニット１０の放熱器１２によって外気が暖められて屋内に取り込まれる。 Since the outside air is always taken indoors through the air supply port 103 by the action of the 24-hour ventilation system, the outside air is warmed by the radiator 12 of the heat dissipation unit 10 attached to the air supply port 103 during the heating operation. Taken indoors.
たとえば、風呂に入り終わった夜１０時から明け方の５時頃までにかけて２００W（２個で４００W）程度の暖房能力を得ることができ、ヒートショックの防止に貢献することができる。なお、放熱器１２に温水を流して暖房するので、たとえば、電気ヒータを給気口１０３の中に設置するような方式に比べて異常過熱（ショートや漏電による）がなく、火災を招く危険性が少ない。 For example, a heating capacity of about 200 W (400 W for two) can be obtained from 10 pm to 5 pm after taking a bath, which can contribute to the prevention of heat shock. Since hot water is passed through the radiator 12 for heating, there is no abnormal overheating (due to short circuit or electric leakage) as compared with a method in which an electric heater is installed in the air supply port 103, and there is a risk of causing a fire. Less is.
また、給気口１０３に放熱器１２を取り付けることで、室内スペースを圧迫せず、また、温度の低い外気を直接暖めるので、高い効率で暖房することができる。 Further, by attaching the radiator 12 to the air supply port 103, the indoor space is not compressed and the outside air having a low temperature is directly warmed, so that the heating can be performed with high efficiency.
図６は、暖房動作を示す流れ図である。暖房動作がオンにされると、風呂給湯器３０の制御部９０は、風呂ポンプ６５を、流量最大（ここでは６Ｌ/min）でオンにする（ステップＳ１０１）。そして、風呂水流スイッチ６７がオンになるか否かを調べる（ステップＳ１０２）。風呂水流スイッチ６７がオンにならなければ（ステップＳ１０２;Ｎｏ）、浴湯なしのエラーをリモートコントローラ９１に表示等し（ステップＳ１０３）、風呂ポンプ６５をオフにして（ステップＳ１０６）、本処理を終了する。 FIG. 6 is a flow chart showing a heating operation. When the heating operation is turned on, the control unit 90 of the bath water heater 30 turns on the bath pump 65 at the maximum flow rate (here, 6 L / min) (step S101). Then, it is examined whether or not the bath water flow switch 67 is turned on (step S102). If the bath water flow switch 67 is not turned on (step S102; No), an error without bath water is displayed on the remote controller 91 (step S103), the bath pump 65 is turned off (step S106), and this process is performed. finish.
風呂水流スイッチ６７がオンになった場合は（ステップＳ１０２;Ｙｅｓ）、風呂戻り温度センサ６４により浴槽水の温度（風呂温度Ｂ０）を認識する（ステップＳ１０４）。 When the bath water flow switch 67 is turned on (step S102; Yes), the bath water return temperature sensor 64 recognizes the bath water temperature (bath temperature B0) (step S104).
風呂温度（Ｂ０）が予め定めた停止温度（ここでは２８℃とする）未満の場合は（ステップＳ１０５;Ｙｅｓ）、暖房できないと判断し、風呂ポンプ６５をオフにして（ステップＳ１０６）、本処理を終了する。 If the bath temperature (B0) is less than the predetermined stop temperature (here, 28 ° C.) (step S105; Yes), it is determined that heating is not possible, the bath pump 65 is turned off (step S106), and this process is performed. To finish.
風呂温度（Ｂ０）が予め定めた停止温度以上ならば（ステップＳ１０５;Ｎｏ）、風呂ポンプ６５の流量を暖房運転時の流量（ここでは２Ｌ/min）に設定し（ステップＳ１０７）、風呂熱利用三方弁７１を暖房側に切り替える（ステップＳ１０８）。これにより、放熱器１２を経由して浴槽水が循環して暖房が開始される。 If the bath temperature (B0) is equal to or higher than the predetermined stop temperature (step S105; No), the flow rate of the bath pump 65 is set to the flow rate during the heating operation (here, 2 L / min) (step S107), and the bath heat is used. The three-way valve 71 is switched to the heating side (step S108). As a result, the bathtub water circulates through the radiator 12 and heating is started.
この後、暖房運転を３０分行う（ステップＳ１０９;Ｎｏ）。３０分の暖房運転が終了したら（ステップＳ１０９;Ｙｅｓ）、風呂熱利用三方弁７１を風呂側に切り替え（ステップＳ１１０）、風呂ポンプ６５を最大流量で６０秒稼動させて撹拌動作を行う（ステップＳ１１１）。その後、ステップＳ１０４に戻って処理を継続する。 After that, the heating operation is performed for 30 minutes (step S109; No). When the heating operation for 30 minutes is completed (step S109; Yes), the bath heat utilization three-way valve 71 is switched to the bath side (step S110), and the bath pump 65 is operated at the maximum flow rate for 60 seconds to perform a stirring operation (step S111). ). After that, the process returns to step S104 to continue the process.
浴槽２の浴湯取込口３は浴湯流出口４より上の位置にあり、浴槽水を上部から吸い込んで下方に吐き出すようになっている。これは、通常の追い焚き時に、温かい湯を下方から浴槽２内に送り込んで対流を促し、浴槽２内の湯温を均一にするためである。しかし、放熱ユニット１０を用いた暖房運転では、浴槽２内の暖かい湯を上側の浴湯取込口３から吸い込み、放熱器１２で放熱されて冷たくなった湯を下側の浴湯流出口４から浴槽２に流し込むことになるので、冷たい湯が下に溜まって、浴槽２内に温度成層が形成される。 The bathtub water intake port 3 of the bathtub 2 is located above the bathtub water outlet 4, so that the bathtub water is sucked in from the upper part and discharged downward. This is to make the temperature of the hot water in the bathtub 2 uniform by sending warm water into the bathtub 2 from below to promote convection during normal reheating. However, in the heating operation using the heat radiating unit 10, the warm water in the bathtub 2 is sucked from the upper bath water intake port 3, and the hot water radiated by the radiator 12 and cooled is taken out from the lower bath water outlet 4. Since the water is poured into the bathtub 2, cold hot water collects underneath, and a temperature stratification is formed in the bathtub 2.
したがって、浴槽２の浴槽水の湯温が当初均一であれば、暖房運転中に浴湯取込口３から取り込む湯温は、しばらく同じ温度になる。しかし、暖房運転の継続に伴って浴槽２の下部に溜まる冷たい水の層の水位が次第に高くなり、浴湯取込口３の水位までくると、その上に温かい湯が溜まっていても、以後は、その暖かい湯を取り込むことができず、暖房に利用できなくなる。 Therefore, if the temperature of the bathtub water in the bathtub 2 is initially uniform, the temperature of the hot water taken in from the bathtub water intake port 3 during the heating operation will be the same for a while. However, as the heating operation continues, the water level of the cold water layer that collects in the lower part of the bathtub 2 gradually rises, and when it reaches the water level of the bath water intake port 3, even if warm water accumulates on it, after that. Cannot take in the warm water and cannot use it for heating.
そこで、暖房運転を３０分継続したら、一度、撹拌動作を行って、浴槽２内の湯温を均一にする。そして、撹拌後の浴槽水の温度（風呂温度）が停止温度を超える場合は暖房動作を継続し、停止温度以下であれば暖房動作を停止する。 Therefore, after the heating operation is continued for 30 minutes, the stirring operation is performed once to make the hot water temperature in the bathtub 2 uniform. Then, when the temperature of the bath water after stirring (bath temperature) exceeds the stop temperature, the heating operation is continued, and when it is below the stop temperature, the heating operation is stopped.
図７は、暖房動作中の暖房運転や撹拌動作の実行期間と風呂温度等の関係を示している。３０分間の暖房運転中は、前述したように、温度成層が形成されるため、浴湯取込口３から取り込まれる浴槽水の温度（風呂温度）は変化しない。撹拌動作により風呂温度が一気に変化する。 FIG. 7 shows the relationship between the execution period of the heating operation and the stirring operation during the heating operation and the bath temperature. During the heating operation for 30 minutes, as described above, the temperature stratification is formed, so that the temperature (bath temperature) of the bathtub water taken in from the bath water intake port 3 does not change. The bath temperature changes at once due to the stirring operation.
このように本実施の形態に係る暖房システムは、放熱ユニット１０の放熱器１２を用いた暖房機能を有する。また、放熱ユニット１０は、マイクロ扁平管１５を消炎距離以下の隙間で配列した放熱器（マイクロ扁平管熱交換器）１２を用い、放熱器１２と給気口１０３との隙間を不燃材のベース板１１で塞ぐようにしたので、炎が給気口１０３を通過することを防いで延焼を防止し、防火ダンパ１１０を補助することができる。 As described above, the heating system according to the present embodiment has a heating function using the radiator 12 of the heat dissipation unit 10. Further, the heat radiating unit 10 uses a radiator (micro flat tube heat exchanger) 12 in which the micro flat tubes 15 are arranged with a gap equal to or less than the flame extinguishing distance, and the gap between the radiator 12 and the air supply port 103 is a base of a noncombustible material. Since it is closed by the plate 11, it is possible to prevent the flame from passing through the air supply port 103, prevent the spread of fire, and assist the fire damper 110.
なお、放熱ユニット１０の放熱器１２に温水を供給する風呂給湯器３０は、通常、図１１に示すように、屋外（図１１の例ではポーチ）に設置されるので、放熱ユニット１０を防火ダンパ１１０より屋外側に配置することで、温水配管を屋外側から放熱器１２に容易に配管することができ施工性が良好である。また、後付けでの取り付けが容易になる。 Since the bath water heater 30 that supplies hot water to the radiator 12 of the heat dissipation unit 10 is usually installed outdoors (pouch in the example of FIG. 11) as shown in FIG. 11, the heat dissipation unit 10 is fireproof damper. By arranging the hot water pipe on the outdoor side from the 110, the hot water pipe can be easily piped to the radiator 12 from the outdoor side, and the workability is good. In addition, it can be easily attached later.
放熱器１２は、図２、図３に示すようなマイクロ扁平管１５を用いたものに限定されない。図８や図９に示すようにフィンとチューブを用いるタイプの放熱器でもかまわない。この場合も延焼効果を得るならば、フィンとフィンの隙間（円筒形の場合は最大の箇所の隙間）を消炎距離以下、具体的には２．２mm以下、好ましくは１．８mm以下にする。ただし、フィンの変形や火災時の溶融・変形、さらに必要な放熱量を少ない設置スペースで稼ぐことを考慮すれば、マイクロ扁平管１５で構成することが望ましい。 The radiator 12 is not limited to the one using the micro flat tube 15 as shown in FIGS. 2 and 3. As shown in FIGS. 8 and 9, a radiator using fins and tubes may be used. In this case as well, if the fire spreading effect is to be obtained, the gap between the fins (the gap at the maximum portion in the case of a cylinder) should be set to the flame extinguishing distance or less, specifically 2.2 mm or less, preferably 1.8 mm or less. However, it is desirable to use the micro flat tube 15 in consideration of the deformation of the fins, the melting and deformation in the event of a fire, and the fact that the required amount of heat radiation can be obtained in a small installation space.
また、放熱器１２に循環させる温水として浴槽２内の浴槽水を利用する例を示したが、浴槽水以外の温水を循環させてもかまわない。 Further, although an example of using the bathtub water in the bathtub 2 as the hot water to be circulated in the radiator 12 is shown, hot water other than the bathtub water may be circulated.
たとえば、図１０に示す風呂給湯器３０Ｂでは、浴槽２に浴槽水が無い場合には、追い焚き経路から浴槽２を切り離し、放熱器１２と追い焚き用の熱交換器３９を経由して湯水を循環させることができる。熱源は、暖房側のバーナ（第２バーナ３５）を用いる。循環させる湯水が、不足するもしくは無い場合には、給湯側から注湯管４７を通じて補給する。 For example, in the bath water heater 30B shown in FIG. 10, when there is no bathtub water in the bathtub 2, the bathtub 2 is separated from the reheating path, and the hot water is supplied via the radiator 12 and the heat exchanger 39 for reheating. Can be circulated. As the heat source, a burner on the heating side (second burner 35) is used. If the amount of hot water to be circulated is insufficient or absent, it is replenished from the hot water supply side through the hot water injection pipe 47.
図１０では、図５と同一部分には同一の符号を付してある。風呂給湯器３０Ｂでは、風呂の追い焚き経路は、水−水熱交換器３９の二次側配管を経由する。水-水熱交換器３９の一次側は、シスターン５６から循環ポンプ５７、第２熱交換器３８の顕熱熱交換器３８ａ、水-水熱交換器３９の一次側、第２熱交換器３８の潜熱熱交換器３８ｂを経てシスターン５６に戻る循環経路に含まれる。循環ポンプ５７の作用でこの循環経路を循環する湯水は第２熱交換器３８を通る際に第２バーナ３５からの熱を受けて加熱され、その熱は水-水熱交換器３９を通る際に一次側から二次側に移動する。 In FIG. 10, the same parts as those in FIG. 5 are designated by the same reference numerals. In the bath water heater 30B, the reheating route of the bath goes through the secondary side pipe of the water-water heat exchanger 39. The primary side of the water-water heat exchanger 39 is from the systurn 56 to the circulation pump 57, the sensible heat exchanger 38a of the second heat exchanger 38, the primary side of the water-water heat exchanger 39, and the second heat exchanger 38. It is included in the circulation path returning to the systurn 56 via the latent heat exchanger 38b of the above. The hot water circulating in this circulation path is heated by receiving the heat from the second burner 35 when passing through the second heat exchanger 38 by the action of the circulation pump 57, and the heat is heated when passing through the water-water heat exchanger 39. Move from the primary side to the secondary side.
図１０に示す風呂給湯器３０Ｂを用いた暖房システムの浴湯切替ユニット７０Ｂは、前述の風呂熱利用三方弁７１に加えて、風呂バイパス三方弁７２、気水分離機７３を備える。風呂バイパス三方弁７２は、浴槽２の手前で風呂戻り管４５と風呂往き管４６を接続して浴槽２をバイパスする状態（風呂迂回側、図中の第２接続口と第３接続口を連通させ第１接続口を切り離した状態）と、浴槽２をバイパスしない通常の追い焚き経路（風呂経由側、図中の第３接続口と第１接続口を連通させ第２接続口を切り離した状態）とするかを切り換える。 The bath water switching unit 70B of the heating system using the bath water heater 30B shown in FIG. 10 includes a bath bypass three-way valve 72 and a steam separator 73 in addition to the above-mentioned bath heat utilization three-way valve 71. The bath bypass three-way valve 72 is in a state of connecting the bath return pipe 45 and the bath going pipe 46 in front of the bathtub 2 to bypass the bathtub 2 (bath bypass side, communicating the second connection port and the third connection port in the figure). A state in which the first connection port is disconnected) and a normal reheating route that does not bypass the bathtub 2 (on the side via the bath, a state in which the third connection port and the first connection port in the figure are communicated and the second connection port is disconnected). ) To switch.
浴槽２内の湯を用いて放熱器１２による暖房運転を行う場合は、風呂バイパス三方弁７２を風呂経由側に設定し、図５に示した風呂給湯器３０と同様の暖房動作を行う。浴槽２の湯を利用しないで暖房動作を行う場合には、風呂バイパス三方弁７２を風呂迂回側に切り替え、風呂熱利用三方弁７１を暖房側に設定する。また、浴槽２をバイパスさせた追い焚き経路に、注湯管４７を通じて湯または水を補給する。その後、風呂ポンプ６５および循環ポンプ５７をオンにして、風呂往き温度センサ６８の検出温度が４０℃等になるように、第２バーナ３５の燃焼量等を制御する。 When the heating operation by the radiator 12 is performed using the hot water in the bathtub 2, the bath bypass three-way valve 72 is set on the side via the bath, and the heating operation is performed in the same manner as the bath water heater 30 shown in FIG. When the heating operation is performed without using the hot water of the bathtub 2, the bath bypass three-way valve 72 is switched to the bath bypass side, and the bath heat utilization three-way valve 71 is set to the heating side. In addition, hot water or water is replenished through the pouring pipe 47 to the reheating route bypassing the bathtub 2. After that, the bath pump 65 and the circulation pump 57 are turned on, and the combustion amount of the second burner 35 and the like are controlled so that the detection temperature of the bath going temperature sensor 68 becomes 40 ° C. or the like.
以上、本発明の実施の形態を図面によって説明してきたが、具体的な構成は実施の形態に示したものに限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。 Although the embodiment of the present invention has been described above with reference to the drawings, the specific configuration is not limited to that shown in the embodiment, and there are changes and additions within a range that does not deviate from the gist of the present invention. Is also included in the present invention.
実施の形態では、給気口１０３に防火ダンパ１１０が装着されている例を示したが、本発明は、防火ダンパ１１０が取り付けられていない場合にも適用され、給気口を炎が通過することを防止する。 In the embodiment, an example in which the fireproof damper 110 is attached to the air supply port 103 is shown, but the present invention is also applied to the case where the fireproof damper 110 is not attached, and the flame passes through the air supply port. To prevent that.
放熱器１２に温水を循環させる温水循環部は、実施の形態で示した風呂給湯器３０や風呂給湯器３０Ｂに限定されず、任意の熱源で構わない。たとえば、燃料電池の排熱を利用するようなものでもよい。燃料電池の排熱で湯を作って貯湯タンクにためる給湯システムを利用する場合、貯湯タンクが満蓄となって燃料電池の排熱を回収できない状態になったら、貯湯タンクの湯を浴槽に数リットル捨てて、浴槽内の湯温を上昇させ、この浴槽水を循環させて放熱器１２による暖房を行えばよい。 The hot water circulation unit that circulates hot water in the radiator 12 is not limited to the bath water heater 30 and the bath water heater 30B shown in the embodiment, and may be any heat source. For example, the exhaust heat of the fuel cell may be used. When using a hot water supply system that creates hot water from the exhaust heat of the fuel cell and stores it in the hot water storage tank, if the hot water storage tank becomes full and the exhaust heat of the fuel cell cannot be recovered, add the hot water from the hot water storage tank to the bathtub. One liter may be discarded, the temperature of the hot water in the bathtub may be raised, and the bath water may be circulated for heating by the radiator 12.
実施の形態では、防火ダンパ１１０より屋外側に放熱ユニット１０を取り付けたが、放熱ユニット１０は防火ダンパ１１０より屋内側に配置されてもよい。ただし、放熱ユニット１０を防火ダンパ１１０より屋外側に設置した場合のような良好な施工性は得られない。 In the embodiment, the heat radiating unit 10 is attached to the outdoor side of the fire damper 110, but the heat radiating unit 10 may be arranged indoors from the fire damper 110. However, it is not possible to obtain good workability as in the case where the heat dissipation unit 10 is installed on the outdoor side of the fire damper 110.
温水配管が屋外側から放熱器に至っている場合には、隣家が火災時には火災の熱を受けて温水配管内温度が上昇する。この上昇を風呂戻り温度センサ６４で検知して家人に対して警報を行うようにしても良い。例えば、風呂給湯器３０、３０Ｂで湯を浴槽に対して使用しているか否かを検証（湯を浴槽に入れている可能性を、湯の使用状況と水位センサー等を使用して検証）したり、浴槽水を追焚しているかを検証した上で、風呂戻り温度センサ６４での温度上昇が、火事等外部要因と判断される場合には、警報を行うようと共に風呂ポンプ６５による送水量を増やすようにしても良い。これにより、マイクロ扁平管１５の温度が上昇しにくくなり、消炎する機能が維持されやすくなる。 If the hot water pipe reaches the radiator from the outdoor side, the temperature inside the hot water pipe rises due to the heat of the fire when the neighboring house catches fire. This rise may be detected by the bath return temperature sensor 64 to give an alarm to the householder. For example, verify whether or not hot water is used for the bathtub with the bath water heaters 30 and 30B (verify the possibility that hot water is in the bathtub using the hot water usage status and the water level sensor, etc.). Or, after verifying whether the bathtub water is being reheated, if the temperature rise in the bath return temperature sensor 64 is determined to be an external factor such as a fire, an alarm is issued and the amount of water sent by the bath pump 65. You may try to increase. As a result, the temperature of the microflat tube 15 is less likely to rise, and the function of extinguishing the flame is easily maintained.
また、隣家が火災時には火災の熱を受けて温水配管が燃える。この時、水位センサ６６は急激な水位変化を示す。例えば注湯したり、浴槽水を排水したりすると、水位センサ６６は浴槽水位変化に応じた出力を示すが、温水配管が燃えて空気が侵入した時点で、水位センサ６６の一端が大気解放となり、急激な水位変化を示すので、これを検知して家人に対して警報を行うようにしても良い。 In addition, when the neighboring house catches fire, the hot water pipe burns due to the heat of the fire. At this time, the water level sensor 66 shows a sudden change in the water level. For example, when pouring hot water or draining bathtub water, the water level sensor 66 shows an output according to the change in the bathtub water level, but when the hot water pipe burns and air invades, one end of the water level sensor 66 is released to the atmosphere. , Since it shows a sudden change in water level, it may be possible to detect this and give an alarm to the householder.
隣家火災時には温度ヒューズ１１５が溶断するまで、放熱ユニット（マイクロ扁平管熱交換器）の放熱板の間から熱風が侵入する（例えば火災無し時に取り込まれる外気の温度は、５℃で安定しているのに対し、例えば火災時には２０℃→３０℃→４０℃のように上昇する）。屋内に取り込まれる外気の温度上昇に伴って、風呂戻り温度センサ６４での温度上昇が始まるので、火事等外部要因と判断される場合には、警報を行うようにしても良い（風呂戻り温度センサ６４に代えて、例えば風呂往き温度センサ６８等、循環する浴槽水の水温を測定できるものを用いても良い）。 In the event of a fire next door, hot air enters between the heat dissipation plates of the heat dissipation unit (micro flat tube heat exchanger) until the thermal fuse 115 blows (for example, the temperature of the outside air taken in when there is no fire is stable at 5 ° C. On the other hand, for example, in the event of a fire, the temperature rises as 20 ° C → 30 ° C → 40 ° C). As the temperature of the outside air taken indoors rises, the temperature rise of the bath return temperature sensor 64 starts. Therefore, if it is determined to be an external factor such as a fire, an alarm may be issued (bath return temperature sensor). Instead of 64, for example, a bath temperature sensor 68 or the like that can measure the temperature of the circulating bath water may be used).
２…浴槽
３…浴湯取込口
４…浴湯流出口
１０…放熱ユニット
１１…ベース板
１２…マイクロ扁平管熱交換器（放熱器）
１３…入水管
１４…出水管
１５…マイクロ扁平管
３０、３０Ｂ…風呂給湯器
３１…燃焼ファン
３２…排気口
３３…燃焼室
３４…第１バーナ
３５…第２バーナ
３６…第１熱交換器
３６ａ…顕熱熱交換器
３６ｂ…潜熱熱交換器
３８…第２熱交換器
３８ａ…顕熱熱交換器
３８ｂ…潜熱熱交換器
３９…水−水熱交換器
４１…給水管
４２…給湯管
４３…バイパス管
４５…風呂戻り管
４６…風呂往き管
４７…注湯管
５１…水量センサ
５２…水量サーボ
５３…バイパスサーボ
５４…逆止弁
５５…注湯弁
５６…シスターン
５７…循環ポンプ
６１…熱交温度センサ
６２…給湯温度センサ
６３…外気温度センサ
６４…風呂戻り温度センサ
６５…風呂ポンプ
６６…水位センサ
６７…風呂水流スイッチ
６８…風呂往き温度センサ
７０…浴湯切替ユニット
７０Ｂ…浴湯切替ユニット
７１…逆止弁
７１…風呂熱利用三方弁
７２…風呂バイパス三方弁
７３…放熱往き管
７４…放熱戻り管
８１…ガス供給管
８２…元ガス電磁弁
８３…ガス比例弁
９０…制御部
９１…リモートコントローラ
１０３…給気口
１０６…給気ダクト
１０７…屋内側カバーユニット
１０８…雨避けカバー
１１０…防火ダンパ
１１１…ベース
１１２…ダンパフレーム
１１３…ダンパ板
１１４…バネ
１１５…温度ヒューズ
2 ... Bathtub 3 ... Bath water intake port 4 ... Bath water outlet 10 ... Heat dissipation unit 11 ... Base plate 12 ... Micro flat tube heat exchanger (radiator)
13 ... Water inlet pipe 14 ... Water outlet pipe 15 ... Micro flat pipe 30, 30B ... Bath water heater 31 ... Combustion fan 32 ... Exhaust port 33 ... Combustion chamber 34 ... 1st burner 35 ... 2nd burner 36 ... 1st heat exchanger 36a ... Substantial heat exchanger 36b ... Submarine heat exchanger 38 ... Second heat exchanger 38a ... Substantial heat exchanger 38b ... Submarine heat exchanger 39 ... Water-water heat exchanger 41 ... Water supply pipe 42 ... Hot water supply pipe 43 ... Bypass pipe 45 ... Bath return pipe 46 ... Bath going pipe 47 ... Hot water pouring pipe 51 ... Water volume sensor 52 ... Water volume servo 53 ... Bypass servo 54 ... Check valve 55 ... Hot water pouring valve 56 ... Systurn 57 ... Circulation pump 61 ... Heat exchange Temperature sensor 62 ... Hot water supply temperature sensor 63 ... Outside air temperature sensor 64 ... Bath return temperature sensor 65 ... Bath pump 66 ... Water level sensor 67 ... Bath water flow switch 68 ... Bath going temperature sensor 70 ... Bath water switching unit 70B ... Bath water switching unit 71 ... Check valve 71 ... Bath heat utilization three-way valve 72 ... Bath bypass three-way valve 73 ... Heat dissipation outbound pipe 74 ... Heat dissipation return pipe 81 ... Gas supply pipe 82 ... Original gas electromagnetic valve 83 ... Gas proportional valve 90 ... Control unit 91 ... Remote Controller 103 ... Air supply port 106 ... Air supply duct 107 ... Indoor side cover unit 108 ... Rain avoidance cover 110 ... Fireproof damper 111 ... Base 112 ... Damper frame 113 ... Damper plate 114 ... Spring 115 ... Temperature fuse
Claims (7)
前記放熱器と前記給気口の内壁との隙間を不燃材で封鎖する封鎖部材と、
を有し、
前記放熱器は、マイクロ扁平管熱交換器であり、火災の炎を通さない消炎距離以下の間隔で、内部に温水が通される放熱板が配列されている、
ことを特徴とする放熱ユニット。 Exhaust is performed by a separate fan, and the air supply of the 24-hour ventilation system that supplies air without using a fan from a through-hole-shaped air supply port with a diameter of 100 to 150 mm and a constant cross section that connects the outside and the inside provided on the wall. A radiator that is attached to the part of the mouth with a certain cross section and allows hot water to pass through.
A sealing member that seals the gap between the radiator and the inner wall of the air supply port with a non-combustible material.
Have,
The radiator is a micro flat tube heat exchanger, and heat dissipation plates through which hot water passes are arranged at intervals of not more than a flame extinguishing distance that does not allow the flame of a fire to pass through.
A heat dissipation unit characterized by this.
ことを特徴とする請求項１に記載の放熱ユニット。 The heat radiating unit according to claim 1, wherein the heat radiating plates are arranged at intervals of 2.2 mm or less.
前記放熱ユニットの放熱器に温水を循環させる温水循環部と、
を有する
ことを特徴とする暖房システム。 The heat dissipation unit according to claim 1 or 2,
A hot water circulation unit that circulates hot water in the radiator of the heat dissipation unit,
A heating system characterized by having.
前記温水循環部は、
風呂の追い焚き機能を備えた風呂給湯器と、
前記風呂給湯器の風呂の追い焚き経路を、前記放熱器を経由する経路と前記放熱器をバイパスする経路に切り換える切り替え弁を有し、
前記放熱器に浴槽水を循環させる場合に、前記追い焚き経路を、前記放熱器を経由する経路に設定して風呂の循環ポンプを駆動する
ことを特徴とする請求項３に記載の暖房システム。 The hot water is bathtub water in the bathtub, and is
The hot water circulation part
A bath water heater with a bath reheating function and
It has a switching valve that switches the reheating path of the bath of the bath water heater to a path that passes through the radiator and a path that bypasses the radiator.
The heating system according to claim 3 , wherein when the bathtub water is circulated through the radiator, the reheating path is set to a path passing through the radiator to drive the circulation pump of the bath.
前記放熱ユニットの放熱器に温水を循環させる温水循環部と、
を有し、
前記温水は、浴槽内の浴槽水であり、
前記温水循環部は、風呂の追い焚き機能を備えた風呂給湯器と、前記風呂給湯器の風呂の追い焚き経路を、前記放熱器を経由する経路と前記放熱器をバイパスする経路に切り換える切り替え弁を有し、前記放熱器に浴槽水を循環させる場合に、前記追い焚き経路を、前記放熱器を経由する経路に設定して風呂の循環ポンプを駆動し、
前記放熱器は、火災の炎を通さない消炎距離以下の間隔で放熱板が配列されており、
前記放熱器に浴槽水を循環させる動作中に前記放熱器から戻ってくる浴槽水の温度の上昇に基づいて火災を検知して警報を発する
ことを特徴とする暖房システム。 Exhaust is performed by a separate fan, and hot water is installed in the air supply port of a 24-hour ventilation system that supplies air without using a fan from a through-hole-shaped air supply port provided on the wall that connects the outside and the inside. A heat dissipation unit having a radiator through which the radiator is passed, and a sealing member for sealing the gap between the radiator and the inner wall of the air supply port with a noncombustible material.
A hot water circulation unit that circulates hot water in the radiator of the heat dissipation unit,
Have,
The hot water is bathtub water in the bathtub, and is
The hot water circulation unit is a bath water heater having a bath reheating function, and a switching valve that switches the bath reheating route of the bath water heater to a route that passes through the radiator and a route that bypasses the radiator. When the bathtub water is circulated through the radiator, the reheating path is set to the path passing through the radiator to drive the circulation pump of the bath.
In the radiator, heat dissipation plates are arranged at intervals equal to or less than the flame extinguishing distance that does not allow the flame of a fire to pass through.
Warm tufts system that is characterized in that for sounding an alarm upon detection of fire based on the radiator the temperature rise of the bath water returning from the radiator during operation for circulating the bath water.
ことを特徴とする請求項５に記載の暖房システム。 The heating system according to claim 5 , wherein when the detection is made, the amount of water supplied by the hot water circulation unit is increased.
前記放熱器は、前記放熱板の内部に温水が通されるマイクロ扁平管熱交換器であって、前記給気口の中の前記一定断面の部分に取り付けられる The radiator is a micro flat tube heat exchanger through which hot water is passed inside the radiator plate, and is attached to a portion of the constant cross section in the air supply port.
ことを特徴とする請求項５または６に記載の暖房システム。 The heating system according to claim 5 or 6.
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60108113A (en) * | 1983-11-17 | 1985-06-13 | Fujisash Co | Manufacture of flat tube for heat exchanger |
| JPH0166515U (en) * | 1987-10-26 | 1989-04-27 | ||
| JP2004190953A (en) * | 2002-12-11 | 2004-07-08 | Nissan Motor Co Ltd | Ventilating device |
| JP2005147458A (en) * | 2003-11-13 | 2005-06-09 | Sanki Eng Co Ltd | Outside air processing device for air conditioning |
| JP2005233494A (en) * | 2004-02-19 | 2005-09-02 | Matsushita Electric Ind Co Ltd | Heat exchange type ventilator |
| JP2006329437A (en) * | 2005-05-23 | 2006-12-07 | Shinryo Corp | Pipe sleeve for round pipe and its using method |
| JP2009520767A (en) * | 2005-12-22 | 2009-05-28 | シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー | Production of alkylene glycol in microchannel apparatus |
| JP2008196738A (en) * | 2007-02-09 | 2008-08-28 | Osaka Gas Co Ltd | Ventilating device and heat exchange unit used in the same |
| JP2011179759A (en) * | 2010-03-01 | 2011-09-15 | Osaka Gas Co Ltd | Duct case and air supply duct having the same |
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