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JP2013228171A - Heat recovery device - Google Patents

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JP2013228171A
JP2013228171A JP2012101910A JP2012101910A JP2013228171A JP 2013228171 A JP2013228171 A JP 2013228171A JP 2012101910 A JP2012101910 A JP 2012101910A JP 2012101910 A JP2012101910 A JP 2012101910A JP 2013228171 A JP2013228171 A JP 2013228171A
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heat
recovery apparatus
heat recovery
annular
spiral
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Takuya Tanaka
拓也 田中
Yuji Saito
祐二 斎藤
Kentaro Sekine
賢太郎 関根
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Taisei Corp
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Taisei Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

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Abstract

【課題】既存の排熱経路に低コストで設置できる熱回収装置を提供する。
【解決手段】熱回収装置１は、熱媒が流通し、この熱媒と周囲の気体あるいは液体との間で熱交換する。この熱回収装置１は、熱媒を流通させることにより形状が変化する熱交換部１０を備える。熱回収装置１の熱交換部１０を縮小して、この小さくなった熱交換部１０を、排気ダクト２の点検口３を通して、排気ダクト２の内部に挿入する。その後、熱媒を流通させることで、熱交換部１０の円環部２０を拡大させて、排気ダクト２内で熱交換部１０を拡げて設置する。よって、熱回収装置１を簡単に設置できるうえに、既存の排気ダクト２に大きな開口を設ける必要がないので、施工手間を少なくでき、低コストとなる。また、排気ダクト２内の全体に熱交換部１０が拡がるので、熱回収量を向上できるうえに、局所的に圧力損失が増大するのを防止できる。
【選択図】図１A heat recovery apparatus which can be installed in an existing exhaust heat path at low cost.
In a heat recovery apparatus, a heat medium flows and heat exchange is performed between the heat medium and a surrounding gas or liquid. The heat recovery apparatus 1 includes a heat exchanging unit 10 whose shape changes by circulating a heat medium. The heat exchange unit 10 of the heat recovery apparatus 1 is reduced, and the reduced heat exchange unit 10 is inserted into the exhaust duct 2 through the inspection port 3 of the exhaust duct 2. Thereafter, the annular portion 20 of the heat exchange unit 10 is expanded by circulating the heat medium, and the heat exchange unit 10 is expanded and installed in the exhaust duct 2. Therefore, the heat recovery apparatus 1 can be easily installed, and it is not necessary to provide a large opening in the existing exhaust duct 2, so that the construction labor can be reduced and the cost is reduced. In addition, since the heat exchanging portion 10 extends throughout the exhaust duct 2, it is possible to improve the heat recovery amount and to prevent local increase in pressure loss.
[Selection] Figure 1

Description

本発明は、熱回収装置に関する。詳しくは、熱媒が流通し、この熱媒と周囲の気体あるいは液体との間で熱交換を行うことで熱を回収する熱回収装置に関する。   The present invention relates to a heat recovery apparatus. Specifically, the present invention relates to a heat recovery apparatus that recovers heat by circulating a heat medium and exchanging heat between the heat medium and a surrounding gas or liquid.

従来より、空気調和機やヒートポンプ給湯器には、熱交換器が設けられている。この熱交換器は、例えば、複数枚のプレートフィンからなるフィン列と、このフィン列に貫通して設けられた伝熱管と、を備える構造である（特許文献１参照）。この熱交換器によれば、熱媒を流通させる伝熱管にプレートフィンを取り付けて伝熱面積を大きく確保したので、効率よく熱交換できる。   Conventionally, air conditioners and heat pump water heaters are provided with heat exchangers. This heat exchanger has a structure including, for example, a fin row composed of a plurality of plate fins and a heat transfer tube provided through the fin row (see Patent Document 1). According to this heat exchanger, the plate fins are attached to the heat transfer tubes through which the heat medium is circulated to ensure a large heat transfer area, so that heat can be exchanged efficiently.

特開２０１１−２４７４９９号公報JP2011-247499A

ところで、近年、既存設備の排熱を回収して利用するため、上述のような熱交換器を排熱ダクト内に設置することが提案されている。この場合、排熱ダクトに熱交換器を通過するための大きな開口を形成する。その後、この開口からダクト内に熱交換器を設置して、開口を塞ぐので、工事期間中、設備運転を停止する必要があるうえに、施工手間がかかるので、コスト高となる。   By the way, in recent years, in order to collect and use the exhaust heat of the existing equipment, it has been proposed to install the heat exchanger as described above in the exhaust heat duct. In this case, a large opening for passing through the heat exchanger is formed in the exhaust heat duct. Thereafter, a heat exchanger is installed in the duct from this opening and the opening is closed, so that it is necessary to stop the operation of the equipment during the construction period, and it takes a lot of construction work, resulting in high cost.

本発明は、既存の排熱経路に低コストで設置できる熱回収装置を提供することを目的とする。   An object of this invention is to provide the heat recovery apparatus which can be installed in the existing waste heat path at low cost.

請求項１に記載の熱回収装置（例えば、後述の熱回収装置１、１Ａ、１Ｂ）は、熱媒が流通し、当該熱媒と周囲の気体あるいは液体との間で熱交換する熱回収装置であって、熱媒が流通する、暖められる、および拘束状態から解放されることのいずれかにより形状が変化する熱交換部（例えば、後述の円環部２０、右回り螺旋部５０、左回り螺旋部５１、螺旋部７０Ａ、７０Ｂ）を備えることを特徴とする。   The heat recovery apparatus according to claim 1 (for example, heat recovery apparatuses 1, 1A, 1B described later) is a heat recovery apparatus in which a heat medium flows and heat is exchanged between the heat medium and the surrounding gas or liquid. And a heat exchange part whose shape changes depending on whether the heat medium circulates, is heated, or released from the restraint state (for example, an annular part 20, a clockwise spiral part 50, which will be described later, and a counterclockwise direction). A spiral portion 51 and spiral portions 70A and 70B).

請求項２に記載の熱回収装置は、既存の排熱経路（例えば、後述の排気ダクト２）内に設けられることを特徴とする。   The heat recovery apparatus according to claim 2 is provided in an existing exhaust heat path (for example, an exhaust duct 2 described later).

ここで、熱媒とは、空気などの気体や、水などの液体が挙げられる。
また、排熱経路とは、排気ダクトや排水管などが挙げられる。 Here, examples of the heat medium include a gas such as air and a liquid such as water.
In addition, examples of the exhaust heat path include an exhaust duct and a drain pipe.

この発明によれば、熱回収装置の熱交換部を縮小して、この小さくなった熱交換部を、点検口などを通して排熱経路内に挿入する。その後、熱媒を流通させる、暖める、あるいは拘束状態から解放することで、熱交換部を拡大させて、排熱経路内全体に熱交換部を拡げて設置する。
よって、熱回収装置を簡単に設置できるうえに、既存の排熱経路に大きな開口を設ける必要がないので、施工手間を少なくでき、低コストとなる。また、排熱経路内全体に熱交換部が拡がるので、熱回収量を向上できるうえに、局所的に圧力損失が増大するのを防止できる。 According to the present invention, the heat exchanging portion of the heat recovery apparatus is reduced, and the reduced heat exchanging portion is inserted into the exhaust heat path through the inspection port or the like. Thereafter, the heat exchange medium is circulated, warmed, or released from the restrained state, so that the heat exchange section is expanded, and the heat exchange section is expanded and installed throughout the exhaust heat path.
Therefore, the heat recovery device can be easily installed, and it is not necessary to provide a large opening in the existing exhaust heat path. In addition, since the heat exchanging portion extends throughout the exhaust heat path, it is possible to improve the heat recovery amount and to prevent a local increase in pressure loss.

請求項３に記載の熱回収装置は、前記熱交換部は、同軸上に複数配置された円環管状の円環部（例えば、後述の円環部２０）と、前記円環部のうち隣り合うもの同士を連結する管状の連結部（例えば、後述の往き配管３０）と、を備え、前記円環部は、それぞれ、柔軟性あるいは弾力性を有しており、内部の熱媒を抜くことにより当該円環部の外径が縮小するとともに、内部に熱媒を送り込むことにより当該円環部の外径が拡大し、前記連結部は、それぞれ、前記円環部の中心軸に略平行に延びており、前記円環部の中心を挟んで反対側に交互に配置されることを特徴とする。   The heat recovery apparatus according to claim 3, wherein the heat exchanging unit is adjacent to the annular ring part (for example, an annular part 20 to be described later) arranged in a plurality of coaxial lines and the annular part. A tubular connecting portion (for example, a later-described outgoing pipe 30) for connecting the fittings, and each of the annular portions has flexibility or elasticity, and draws out the internal heat medium. The outer diameter of the annular part is reduced by the above, and the outer diameter of the annular part is enlarged by sending a heat medium into the inside, and the connecting parts are substantially parallel to the central axis of the annular part, respectively. It extends, and is arranged alternately on the opposite side across the center of the annular portion.

排熱経路に熱交換部を設置する場合、熱交換部による圧力損失が大きくなると、排熱経路の排気や排液が円滑に行われず、排出圧力を再設定する手間がかかってしまう。
そこで、この発明によれば、熱交換部に円環部を設けたので、円環部の内側が排気や排液の通り道となるから、熱交換部による圧力損失を小さくでき、排出圧力を再設定する必要がなくなる。 When a heat exchange part is installed in the exhaust heat path, if the pressure loss due to the heat exchange part becomes large, exhaust or drainage of the exhaust heat path is not performed smoothly, and it takes time to reset the exhaust pressure.
Therefore, according to the present invention, since the annular portion is provided in the heat exchanging portion, the inside of the annular portion becomes a passage for exhaust and drainage, so that the pressure loss due to the heat exchanging portion can be reduced, and the exhaust pressure is regenerated. No need to set.

請求項４に記載の熱回収装置は、前記熱交換部は、右回りの螺旋状に延びる複数本の管状の右回り螺旋部（例えば、後述の右回り螺旋部５０）と、左回りの螺旋状に延びる複数本の管状の左回り螺旋部（例えば、後述の左回り螺旋部５１）と、を備え、当該右回り螺旋部および左回り螺旋部は、柔軟性あるいは弾力性を有しており、所定間隔おきに格子状に配置されて、交点（例えば、後述の交点６０）で互いに連結されることを特徴とする。   According to a fourth aspect of the present invention, there is provided the heat recovery apparatus, wherein the heat exchanging portion includes a plurality of tubular clockwise spiral portions (for example, a clockwise spiral portion 50 described later) extending in a clockwise spiral and a counterclockwise spiral. A plurality of tubular counterclockwise spiral portions (for example, a counterclockwise spiral portion 51 described later), and the clockwise spiral portion and the counterclockwise spiral portion have flexibility or elasticity. These are arranged in a grid pattern at predetermined intervals and are connected to each other at intersections (for example, intersections 60 described later).

この発明によれば、右回り螺旋部および左回り螺旋部の内部の熱媒を抜くことにより、柔軟性が増大するので、円筒形である熱交換部の外径が縮小する。次に、熱交換部の円筒形の外径が縮小した状態で排熱経路内に挿入し、その後、右回り螺旋部および左回り螺旋部の内部に熱媒を送り込むと、右回り螺旋部および左回り螺旋部が熱媒により内側から押されて硬直し、円筒形である熱交換部の外径が拡大する。
よって、熱交換部が全体として円筒形状となるので、円筒形の内側が排気や排液の通り道となるから、熱交換部による圧力損失を小さくでき、排出圧力を再設定する必要がなくなる。 According to this invention, since the flexibility is increased by removing the heat medium inside the clockwise spiral portion and the counterclockwise spiral portion, the outer diameter of the cylindrical heat exchange portion is reduced. Next, when the outer diameter of the cylindrical shape of the heat exchange portion is reduced and inserted into the exhaust heat path, and then the heat medium is fed into the clockwise spiral portion and the counterclockwise spiral portion, the clockwise spiral portion and The counterclockwise spiral portion is pushed and stiffened from the inside by the heat medium, and the outer diameter of the cylindrical heat exchange portion is enlarged.
Therefore, since the heat exchanging portion has a cylindrical shape as a whole, the inner side of the cylindrical shape becomes a passage for exhaust and drainage, so that the pressure loss due to the heat exchanging portion can be reduced and there is no need to reset the discharge pressure.

請求項５に記載の熱回収装置は、前記熱交換部は、絡み合って同一の向きに螺旋状に延びる管状の一対の螺旋部（例えば、後述の螺旋部７０Ａ、７０Ｂ）を備え、当該一対の螺旋部の先端部同士は、連結されていることを特徴とする。   The heat recovery apparatus according to claim 5, wherein the heat exchange unit includes a pair of tubular spiral portions (for example, spiral portions 70 </ b> A and 70 </ b> B described later) that are intertwined and extend spirally in the same direction. The tip portions of the spiral portion are connected to each other.

この発明によれば、螺旋部の内部の熱媒を抜くことにより、柔軟性が増大するので、円筒形である熱交換部の外径を小さくできる。次に、熱交換部の円筒形の外径が縮小した状態で排熱経路内に挿入し、その後、螺旋部の内部に熱媒を送り込むことにより、螺旋部が熱媒により内側から押されて硬直し、円筒形である熱交換部の外径が拡大する。
よって、熱交換部が全体として円筒形状となるので、円筒形の内側が排気や排液の通り道となるから、熱交換部による圧力損失を小さくでき、排出圧力を再設定する必要がなくなる。 According to the present invention, since the flexibility increases by removing the heat medium inside the spiral portion, the outer diameter of the cylindrical heat exchange portion can be reduced. Next, the cylindrical outer diameter of the heat exchanging portion is inserted into the exhaust heat path in a state where the outer diameter is reduced, and then the heat medium is fed into the spiral portion, so that the spiral portion is pushed from the inside by the heat medium. It is stiffened and the outer diameter of the heat exchange part which is cylindrical is enlarged.
Therefore, since the heat exchanging portion has a cylindrical shape as a whole, the inner side of the cylindrical shape becomes a passage for exhaust and drainage, so that the pressure loss due to the heat exchanging portion can be reduced and there is no need to reset the discharge pressure.

本発明によれば、熱回収装置の熱交換部を縮小して、この小さくなった熱交換部を、点検口などを通して排熱経路内に挿入する。その後、熱媒を流通させる、暖める、あるいは拘束状態から解放することで、熱交換部を拡大させて、排熱経路内全体に熱交換部を拡げて設置する。よって、熱回収装置を簡単に設置できるうえに、既存の排熱経路に大きな開口を設ける必要がないので、施工手間を少なくでき、低コストとなる。また、排熱経路内全体に熱交換部が拡がるので、熱回収量を向上できるうえに、局所的に圧力損失が増大するのを防止できる。   According to the present invention, the heat exchanging portion of the heat recovery apparatus is reduced, and the reduced heat exchanging portion is inserted into the exhaust heat path through an inspection port or the like. Thereafter, the heat exchange medium is circulated, warmed, or released from the restrained state, so that the heat exchange section is expanded, and the heat exchange section is expanded and installed throughout the exhaust heat path. Therefore, the heat recovery device can be easily installed, and it is not necessary to provide a large opening in the existing exhaust heat path. In addition, since the heat exchanging portion extends throughout the exhaust heat path, it is possible to improve the heat recovery amount and to prevent a local increase in pressure loss.

本発明の第１実施形態に係る熱回収装置の斜視図である。It is a perspective view of the heat recovery apparatus which concerns on 1st Embodiment of this invention. 前記実施形態に係る熱回収装置の円環部の外径が縮小した状態を示す斜視図である。It is a perspective view which shows the state which the outer diameter of the annular part of the heat recovery apparatus which concerns on the said embodiment reduced. 前記実施形態に係る熱回収装置の円環部の外径が拡大した状態を示す斜視図である。It is a perspective view which shows the state which the outer diameter of the annular part of the heat recovery apparatus which concerns on the said embodiment expanded. 本発明の第２実施形態に係る熱回収装置の斜視図である。It is a perspective view of the heat recovery apparatus which concerns on 2nd Embodiment of this invention. 前記実施形態に係る熱回収装置の外径が縮小した状態を示す斜視図である。It is a perspective view which shows the state which the outer diameter of the heat recovery apparatus which concerns on the said embodiment reduced. 本発明の第３実施形態に係る熱回収装置の斜視図である。It is a perspective view of the heat recovery apparatus which concerns on 3rd Embodiment of this invention. 前記実施形態に係る熱回収装置の外径が縮小した状態を示す斜視図である。It is a perspective view which shows the state which the outer diameter of the heat recovery apparatus which concerns on the said embodiment reduced.

以下、本発明の実施形態を図面に基づいて説明する。なお、以下の実施形態の説明にあたって、同一構成要件については同一符号を付し、その説明を省略もしくは簡略化する。
〔第１実施形態〕
図１は、本発明の第１実施形態に係る熱回収装置１の斜視図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments, the same constituent elements are denoted by the same reference numerals, and the description thereof is omitted or simplified.
[First Embodiment]
FIG. 1 is a perspective view of a heat recovery apparatus 1 according to the first embodiment of the present invention.

熱回収装置１は、既存の排熱経路としての排気ダクト２の内部に設置され、熱媒としての水が流通し、この水と周囲の空気との間で熱交換するものである。この熱回収装置１は、熱媒が流通することにより形状が変化する熱交換部１０と、この熱交換部１０が接続されるヘッダ４、５と、を備える。   The heat recovery apparatus 1 is installed inside an exhaust duct 2 as an existing exhaust heat path, and water as a heat medium circulates, and heat is exchanged between this water and ambient air. The heat recovery apparatus 1 includes a heat exchange unit 10 whose shape changes as a heat medium flows, and headers 4 and 5 to which the heat exchange unit 10 is connected.

熱交換部１０は、同軸上に複数配置された円環管状の円環部２０と、これら円環部２０のうち隣り合うもの同士を連結する管状の連結部としての往き配管３０と、先端に位置する円環部２０Ａから残る円環部２０の内側を通って基端側に至る還り配管４０と、を備える。
往き配管３０は、往きヘッダ４に接続され、還り配管４０は、還りヘッダ５に接続されている。 The heat exchanging unit 10 includes a plurality of annular tubular annular parts 20 arranged on the same axis, an outgoing pipe 30 as a tubular connecting part that connects adjacent ones of the annular parts 20, and a tip. A return pipe 40 extending from the annular portion 20 </ b> A positioned to the proximal end side through the inside of the annular portion 20.
The outgoing pipe 30 is connected to the outgoing header 4, and the return pipe 40 is connected to the return header 5.

円環部２０は、それぞれ、柔軟性を有しており、水を流通させることで形状が変化する。具体的には、内部の水を抜くことにより、円環部２０の内壁面を押す圧力が低下して、図２に示すように、円環部２０の外径が縮小する。また、円環部２０は、外径が縮小した状態で、還り配管４０に水を送り込むことにより、図３に示すように、各円環部２０が内側から押し拡げられて、外径が拡大する。   Each of the annular portions 20 has flexibility, and its shape changes when water is circulated. Specifically, by draining the water inside, the pressure that pushes the inner wall surface of the annular portion 20 decreases, and the outer diameter of the annular portion 20 decreases as shown in FIG. In addition, the annular portion 20 is pushed out from the inside as shown in FIG. 3 by feeding water into the return pipe 40 in a state where the outer diameter is reduced, so that the outer diameter is enlarged. To do.

往き配管３０は、円環部２０の中心軸に略平行に延びている。１つの円環部２０には、隣り合う２つの往き配管３０が連結されることになるが、これら２つの往き配管３０は、円環部２０の中心を挟んで反対側に接続される。   The forward piping 30 extends substantially parallel to the central axis of the annular portion 20. Two adjacent forward pipes 30 are connected to one annular part 20, and these two forward pipes 30 are connected to the opposite side across the center of the annular part 20.

円環部２０は、例えば、使用温度が−８０℃〜１８０℃のフッ素樹脂フィルム（ＥＴＦＥ）で形成される。また、往き配管３０および還り配管４０は、例えば、使用温度が−３０℃〜１５０℃のシリコーンゴムで形成される。   The annular part 20 is formed of, for example, a fluororesin film (ETFE) having a use temperature of −80 ° C. to 180 ° C. Further, the forward piping 30 and the return piping 40 are made of, for example, silicone rubber having a use temperature of −30 ° C. to 150 ° C.

次に、熱回収装置１を排気ダクト２内に設置する手順について説明する。
まず、円環部２０の水を抜いて円環部２０の外径を縮小して、熱交換部１０の形状を小さくする。
この状態で、熱交換部１０を、排気ダクト２の点検口３を通して、排気ダクト２の内部に挿入する。その後、往き配管３０に水を送り込むことにより、円環部２０の直径を拡大させて、排気ダクト２内の全体に熱交換部１０の形状を拡大する。 Next, a procedure for installing the heat recovery apparatus 1 in the exhaust duct 2 will be described.
First, the water of the annular part 20 is drained to reduce the outer diameter of the annular part 20, and the shape of the heat exchange part 10 is reduced.
In this state, the heat exchange unit 10 is inserted into the exhaust duct 2 through the inspection port 3 of the exhaust duct 2. Thereafter, the diameter of the annular portion 20 is increased by feeding water into the forward piping 30, and the shape of the heat exchange portion 10 is expanded throughout the exhaust duct 2.

本実施形態によれば、以下のような効果がある。
（１）、熱回収装置１を簡単に設置できるうえに、既存の排気ダクト２に大きな開口を設ける必要がないので、施工手間を少なくでき、低コストとなる。また、排気ダクト２内の全体に熱交換部１０が拡がるので、熱回収量を向上できるうえに、局所的に圧力損失が増大するのを防止できる。 According to this embodiment, there are the following effects.
(1) Since the heat recovery apparatus 1 can be easily installed and there is no need to provide a large opening in the existing exhaust duct 2, the construction labor can be reduced and the cost can be reduced. In addition, since the heat exchanging portion 10 extends throughout the exhaust duct 2, it is possible to improve the heat recovery amount and to prevent local increase in pressure loss.

（２）熱回収装置１に円環部２０を設けたので、円環部２０の内側が排気の通り道となるから、熱交換部１０による圧力損失を小さくでき、排気圧力を再設定する必要がなくなる。   (2) Since the annular portion 20 is provided in the heat recovery apparatus 1, the inside of the annular portion 20 becomes a passage for the exhaust, so that the pressure loss due to the heat exchanging portion 10 can be reduced and the exhaust pressure needs to be reset. Disappear.

〔第２実施形態〕
図４は、本発明の第２実施形態に係る熱回収装置１Ａの斜視図である。
熱回収装置１Ａの熱交換部１０Ａは、右回りの螺旋状に延びる管状の複数本の右回り螺旋部５０と、左回りの螺旋状に延びる管状の複数本の左回り螺旋部５１と、で構成される。
熱交換部１０Ａは、全体として円筒形となっており、右回り螺旋部５０および左回り螺旋部５１は、この円筒形の熱交換部１０Ａの壁面を構成する。 [Second Embodiment]
FIG. 4 is a perspective view of a heat recovery apparatus 1A according to the second embodiment of the present invention.
The heat exchanging portion 10A of the heat recovery apparatus 1A includes a plurality of clockwise clockwise spiral portions 50 extending in a clockwise spiral manner and a plurality of tubular counterclockwise spiral portions 51 extending in a counterclockwise spiral shape. Composed.
The heat exchanging portion 10A has a cylindrical shape as a whole, and the clockwise spiral portion 50 and the counterclockwise spiral portion 51 constitute a wall surface of the cylindrical heat exchanging portion 10A.

右回り螺旋部５０および左回り螺旋部５１は、柔軟性を有しており、所定間隔おきに格子状に配置される。これら右回り螺旋部５０と左回り螺旋部５１とは、各交点６０で連結されている。   The clockwise spiral portion 50 and the counterclockwise spiral portion 51 have flexibility, and are arranged in a lattice pattern at predetermined intervals. The clockwise spiral portion 50 and the counterclockwise spiral portion 51 are connected at each intersection 60.

この熱回収装置１Ａでは、右回り螺旋部５０および左回り螺旋部５１の内部の熱媒を抜くことにより、図５に示すように、右回り螺旋部５０および左回り螺旋部５１の柔軟性が増大し、円筒形である熱交換部１０Ａの外径が縮小する。
よって、熱交換部１０Ａの外径が縮小された状態で、熱交換部１０Ａを排気ダクト２内に挿入し、その後、右回り螺旋部５０および左回り螺旋部５１の内部に熱媒を送り込むことにより、右回り螺旋部５０および左回り螺旋部５１が内側から押し拡げられて硬直し、円筒形である熱交換部１０Ａの外径が拡大する。 In this heat recovery apparatus 1A, by removing the heat medium in the clockwise spiral portion 50 and the counterclockwise spiral portion 51, the flexibility of the clockwise spiral portion 50 and the counterclockwise spiral portion 51 is increased as shown in FIG. It increases and the outer diameter of the cylindrical heat exchange part 10A decreases.
Therefore, the heat exchange unit 10A is inserted into the exhaust duct 2 in a state where the outer diameter of the heat exchange unit 10A is reduced, and then the heat medium is fed into the clockwise spiral unit 50 and the counterclockwise spiral unit 51. Accordingly, the clockwise spiral portion 50 and the counterclockwise spiral portion 51 are pushed and expanded from the inside, and the outer diameter of the cylindrical heat exchange portion 10A is expanded.

本実施形態によれば、上述の（１）、（２）と同様の効果がある。   According to the present embodiment, there are the same effects as the above (1) and (2).

〔第３実施形態〕
図６は、本発明の第３実施形態に係る熱回収装置１Ｂの斜視図である。
熱回収装置１Ｂの熱交換部１０Ｂは、絡み合って左回りの螺旋状に延びる管状の一対の螺旋部７０Ａ、７０Ｂで構成される。熱交換部１０は、全体として円筒形状となっており、一対の螺旋部７０Ａ、７０Ｂは、この円筒形の熱交換部１０Ｂの壁面を構成する。これら一対の螺旋部７０Ａ、７０Ｂの先端部同士は、連結されている。 [Third Embodiment]
FIG. 6 is a perspective view of a heat recovery apparatus 1B according to the third embodiment of the present invention.
The heat exchanging portion 10B of the heat recovery apparatus 1B includes a pair of tubular spiral portions 70A and 70B that are intertwined and extend in a counterclockwise spiral shape. The heat exchanging portion 10 has a cylindrical shape as a whole, and the pair of spiral portions 70A and 70B constitutes a wall surface of the cylindrical heat exchanging portion 10B. The tip portions of the pair of spiral portions 70A and 70B are connected to each other.

なお、これら一対の螺旋部７０Ａ、７０Ｂの向きを左回りとしたが、これに限らない。すなわち、一対の螺旋部は同一の向きであればよく、右回りとしてもよい、   Although the direction of the pair of spiral portions 70A and 70B is counterclockwise, it is not limited to this. That is, the pair of spiral portions may be in the same direction, and may be clockwise.

この熱回収装置１Ｂでは、螺旋部７０Ａ、７０Ｂの内部の熱媒を抜くことにより、図７に示すように、螺旋部７０Ａ、７０Ｂの柔軟性が増大し、円筒形である熱交換部１０Ｂの外径が縮小する。
よって、熱交換部１０の外径が縮小された状態で、熱交換部１０Ｂを排気ダクト２内に挿入し、その後、螺旋部７０Ａ、７０Ｂの内部に熱媒を送り込むことにより、螺旋部７０Ａ、７０Ｂが内側から押し拡げられて、円筒形である熱交換部１０Ｂの外径が拡大する。 In this heat recovery apparatus 1B, by removing the heat medium inside the spiral portions 70A and 70B, the flexibility of the spiral portions 70A and 70B is increased as shown in FIG. The outer diameter is reduced.
Therefore, in a state where the outer diameter of the heat exchange unit 10 is reduced, the heat exchange unit 10B is inserted into the exhaust duct 2, and then a heat medium is fed into the spiral units 70A and 70B, thereby the spiral unit 70A 70B is expanded from the inside, and the outer diameter of the cylindrical heat exchange unit 10B is expanded.

本実施形態によれば、上述の（１）、（２）と同様の効果がある。   According to the present embodiment, there are the same effects as the above (1) and (2).

なお、本発明は前記実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。また、本発明は、同様の考え方を用いて、冷熱の回収にも適用できる。   It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention. In addition, the present invention can be applied to the recovery of cold using the same concept.

１、１Ａ、１Ｂ…熱回収装置
２…排気ダクト（排熱経路）
３…点検口
４…往きヘッダ
５…還りヘッダ
１０、１０Ａ、１０Ｂ…熱交換部
２０…円環部
２０Ａ…先端の円環部
３０…往き配管（連結部）
４０…還り配管
５０…右回り螺旋部
５１…左回り螺旋部
６０…交点
７０Ａ、７０Ｂ…螺旋部 1, 1A, 1B ... Heat recovery device 2 ... Exhaust duct (exhaust heat path)
DESCRIPTION OF SYMBOLS 3 ... Inspection port 4 ... Outgoing header 5 ... Return header 10, 10A, 10B ... Heat exchange part 20 ... Ring part 20A ... End ring part 30 ... Outward piping (connection part)
40 ... Return piping 50 ... Right-hand spiral part 51 ... Left-hand spiral part 60 ... Intersection 70A, 70B ... Spiral part

Claims (5)

熱媒が流通し、当該熱媒と周囲の気体あるいは液体との間で熱交換する熱回収装置であって、
熱媒が流通する、暖められる、および拘束状態から解放されることのいずれかにより形状が変化する熱交換部を備えることを特徴とする熱回収装置。 A heat recovery device in which a heat medium circulates and exchanges heat between the heat medium and the surrounding gas or liquid,
A heat recovery apparatus comprising a heat exchanging portion whose shape is changed by any of circulation, heating, and release from a restrained state. 既存の排熱経路に設けられることを特徴とする請求項１に記載の熱回収装置。   The heat recovery apparatus according to claim 1, wherein the heat recovery apparatus is provided in an existing exhaust heat path. 前記熱交換部は、同軸上に複数配置された円環管状の円環部と、当該円環部のうち隣り合うもの同士を連結する管状の連結部と、を備え、
前記円環部は、それぞれ、柔軟性あるいは弾力性を有しており、内部の熱媒を抜くことにより当該円環部の外径が縮小するとともに、内部に熱媒を送り込むことにより当該円環部の外径が増大し、
前記連結部は、それぞれ、前記円環部の中心軸に略平行に延びており、前記円環部の中心を挟んで反対側に交互に配置されることを特徴とする請求項１または２に記載の熱回収装置。 The heat exchanging portion includes a plurality of annular tubular annular portions arranged coaxially, and a tubular coupling portion that couples adjacent ones of the annular portions,
Each of the annular parts has flexibility or elasticity, and the outer diameter of the annular part is reduced by removing the internal heating medium, and the annular part is sent by feeding the heating medium into the annular part. The outer diameter of the part increases,
3. The connection part according to claim 1, wherein each of the connection parts extends substantially parallel to a central axis of the annular part and is alternately arranged on the opposite side across the center of the annular part. The heat recovery apparatus as described. 前記熱交換部は、右回りの螺旋状に延びる複数本の管状の右回り螺旋部と、左回りの螺旋状に延びる複数本の管状の左回り螺旋部と、を備え、
当該右回り螺旋部および左回り螺旋部は、柔軟性あるいは弾力性を有しており、所定間隔おきに格子状に配置されて、交点で互いに連結されることを特徴とする請求項１または２に記載の熱回収装置。 The heat exchanging portion includes a plurality of tubular clockwise spiral portions extending in a clockwise spiral shape, and a plurality of tubular counterclockwise spiral portions extending in a counterclockwise spiral shape,
The right-handed spiral part and the left-handed spiral part have flexibility or elasticity, are arranged in a grid pattern at predetermined intervals, and are connected to each other at intersections. The heat recovery apparatus described in 1. 前記熱交換部は、絡み合って同一の向きに螺旋状に延びる管状の一対の螺旋部を備え、
当該一対の螺旋部の先端部同士は、連結されていることを特徴とする請求項１または２に記載の熱回収装置。 The heat exchanging portion includes a pair of tubular spiral portions that are intertwined and extend spirally in the same direction,
The heat recovery apparatus according to claim 1 or 2, wherein tip portions of the pair of spiral portions are connected to each other.
JP2012101910A 2012-04-27 2012-04-27 Heat recovery device Pending JP2013228171A (en)

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CN114608317A (en) * 2022-03-12 2022-06-10 嘉兴市合一工业电炉有限公司 Tunnel furnace with energy recycling system

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