JPH07111316B2 - Heat exchanger used for heat pump type hot water supply device - Google Patents
Heat exchanger used for heat pump type hot water supply deviceInfo
- Publication number
- JPH07111316B2 JPH07111316B2 JP20670187A JP20670187A JPH07111316B2 JP H07111316 B2 JPH07111316 B2 JP H07111316B2 JP 20670187 A JP20670187 A JP 20670187A JP 20670187 A JP20670187 A JP 20670187A JP H07111316 B2 JPH07111316 B2 JP H07111316B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water supply
- pipe
- copper
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、ヒートポンプサイクルの凝縮熱を利用した給
湯装置に用いる熱交換器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger used in a hot water supply device that uses the heat of condensation of a heat pump cycle.
従来の技術 従来、ヒートポンプサイクルを利用した給湯装置は、例
えば、第６図に示すように、圧縮機１、凝縮器２、膨張
弁３、集熱器４を順次冷媒配管により環状連結してなる
冷媒循環回路と、貯湯槽５、循環ポンプ６、水加熱器７
を順次環状連結してなる給湯水循環回路とを備え、前
記、冷媒循環回路の凝縮器２と給湯水循環回路の水加熱
器７とを伝熱関係に保持してなり、圧縮機１及び循環ポ
ンプ６を駆動することにより集熱運転を行なう。すなわ
ち、圧縮機１で圧縮され高温・高圧になった冷媒は、凝
縮器２に流入し、伝熱関係にある水加熱器７を循環ポン
プ６の作用により流動する給湯水に放熱し、凝縮・液化
する。凝縮器２で凝縮した冷媒は、冷媒配管を経て膨張
弁３に至り、該膨張弁３を通過する際減圧され低温・低
圧となり集熱器４に流入する。集熱器４に流入した冷媒
は太陽熱と大気熱によって順次蒸発し完全にガス化状態
となり圧縮機１へ戻る。一方貯湯槽５内の給湯水は循環
ポンプ６の駆動により水加熱器７へ送られ加熱され再び
貯湯槽５に戻る。以下同様のサイクルを貯湯槽５内の給
湯水が設定温度に達するまで繰り返す。2. Description of the Related Art Conventionally, a hot water supply device using a heat pump cycle is, for example, as shown in FIG. 6, composed of a compressor 1, a condenser 2, an expansion valve 3, and a heat collector 4 which are annularly connected in sequence by a refrigerant pipe. Refrigerant circulation circuit, hot water storage tank 5, circulation pump 6, water heater 7
Hot water supply water circulation circuit in which the above are sequentially connected in an annular manner, and the condenser 2 of the refrigerant circulation circuit and the water heater 7 of the hot water supply water circulation circuit are held in a heat transfer relationship, and the compressor 1 and the circulation pump 6 are provided. The heat collection operation is performed by driving. That is, the high temperature and high pressure refrigerant compressed by the compressor 1 flows into the condenser 2 and radiates heat from the water heater 7 having a heat transfer relationship to the hot water supplied by the action of the circulation pump 6 to condense it. Liquefy. The refrigerant condensed in the condenser 2 reaches the expansion valve 3 through the refrigerant pipe, and when passing through the expansion valve 3, the refrigerant is decompressed to have a low temperature and a low pressure and flow into the heat collector 4. The refrigerant flowing into the heat collector 4 is sequentially evaporated by the solar heat and the atmospheric heat and is completely gasified, and returns to the compressor 1. On the other hand, the hot water in the hot water storage tank 5 is sent to the water heater 7 by the drive of the circulation pump 6 and heated to return to the hot water storage tank 5 again. The same cycle is repeated thereafter until the hot water in the hot water storage tank 5 reaches the set temperature.
上記、ヒートポンプサイクルを利用した給湯装置におい
て、冷媒循環回路の凝縮器２と給湯水循環回路の水加熱
器７は、第７図に示すごとく、冷媒の流動する凝縮管路
２と、給湯水の流動する管路７とをそれぞれ独立した偏
平銅管を交互にラセン状に積層し、両端に椀状の金属製
支持板８をのぞませ、該複数の支持板８をセンターボル
ト９とナット10にて締結し熱交換器本体を構成し、前
記、冷媒凝縮管路２の入口端2-iは圧縮機１の吐出部に
連結し、出口端2-oは膨張弁３に至る冷媒配管に連結さ
れている。一方給湯水管路７の入口端7-iは、Ｕベンド1
1と口金12が接続され循環ポンプ６に連結し、出口端7-o
は出口管13と口金12が接続され貯湯槽５に連結され構成
されている。又、給湯水管路７の入口端7-i及び出口端7
-oとＵベンド11及び出口管13の接続部は第８図に示すご
とく、Ｕベンド11及び出口管13の管端を拡管し、重ね合
わせ状にて銅ロー付けされている。一方Ｕベンド11及び
出口管13と口金12の接続は、第９図に示すごとく、Ｕベ
ンド11及び出口管13の管端に黄銅製の口金を外挿し重ね
合わせ部を銀ロー付けにて固定している。In the hot water supply apparatus using the heat pump cycle described above, the condenser 2 in the refrigerant circulation circuit and the water heater 7 in the hot water supply water circulation circuit have the condensation pipe line 2 through which the refrigerant flows and the flow of the hot water supply water as shown in FIG. Independent flat copper pipes are alternately laminated in a spiral shape, and bowl-shaped metal support plates 8 are seen at both ends, and the plurality of support plates 8 are attached to the center bolt 9 and the nut 10. The refrigerant condensing conduit 2 has an inlet end 2-i connected to the discharge portion of the compressor 1, and an outlet end 2-o connected to a refrigerant pipe leading to the expansion valve 3. Has been done. On the other hand, the inlet end 7-i of the hot water supply pipe 7 is at the U bend 1
1 and the base 12 are connected and connected to the circulation pump 6, the outlet end 7-o
The outlet pipe 13 and the base 12 are connected to each other and connected to the hot water storage tank 5. Further, the inlet end 7-i and the outlet end 7 of the hot water supply pipe 7
As shown in FIG. 8, the connection part between -o and the U bend 11 and the outlet pipe 13 is formed by expanding the pipe ends of the U bend 11 and the outlet pipe 13 and copper brazing them in a superposed manner. On the other hand, as shown in FIG. 9, the connection between the U-bend 11 and the outlet pipe 13 and the base 12 is such that a brass base is externally attached to the ends of the U-bend 11 and the outlet pipe 13 and the overlapping portion is fixed by silver brazing. is doing.
発明が解決しようとする問題点 以上説明したヒートポンプを利用した給湯装置では貯湯
槽５の給湯水を循環ポンプ６の駆動により繰り返し銅を
主材料とする水加熱器７の中を流動させることにより給
湯水中に含まれる銅イオン量が増加し、その結果浴槽や
タオルが青くなるといった一般に知られる青水現象を生
じることがあった。Problems to be Solved by the Invention In the hot water supply apparatus using the heat pump described above, the hot water supplied from the hot water storage tank 5 is repeatedly driven by the circulation pump 6 to flow through the water heater 7 whose main material is copper. The amount of copper ions contained in the water increased, and as a result, the generally known blue-water phenomenon in which a bathtub or towel became blue was sometimes generated.
本発明はかゝる従来の問題を解消するもので、銅イオン
の溶出を防止することを目的とする。The present invention solves such conventional problems, and an object thereof is to prevent the elution of copper ions.
問題点を解決するための手段 上記問題点を解決するために、本発明の熱交換器は、ヒ
ートポンプサイクルの凝縮熱を利用した給湯装置に用い
られ、断面形状が偏平な冷媒用と給湯水用の銅管を交互
にラセン上に巻付け、その両端に支持板を設け、前記支
持板を締付用のセンターボルトとナットで締結した熱交
換器本体と、前記給湯水用銅管の出入口管端に口金を具
備する接続銅管をそれぞれ接合した前記給湯水用銅管お
よび前記接続銅管の内面に樹脂膜を被覆されたヒートポ
ンプ式給湯装置に用いる熱交換器において、熱交換器給
湯水用銅管の入口管端とＵベンドおよび給湯水用銅管の
出口管端と出口管をそれぞれ銅ソケットを介して突き合
わせ状態に保持し、軟ローにて接合してなるものであ
る。Means for Solving the Problems In order to solve the above problems, the heat exchanger of the present invention is used in a hot water supply apparatus that uses the heat of condensation of a heat pump cycle, and has a flat cross section for refrigerant and hot water. The copper pipes are alternately wound around the spiral, support plates are provided at both ends of the spiral, and the support plates are fastened with center bolts and nuts for tightening, and the inlet and outlet pipes of the copper pipes for hot water supply. In the heat exchanger used for the heat pump type hot water supply device, in which the connecting copper pipes having the caps are joined to each other, and the inner surface of the connecting copper pipes are covered with a resin film, The inlet pipe end and the U-bend of the copper pipe and the outlet pipe end and the outlet pipe of the copper pipe for hot water supply are held in a butted state via copper sockets and joined by soft brazing.
作用 本発明は、上記した構成により、伝熱特性を良好に維持
しつつ、給湯水と銅管との直接的な接触をなくすること
が出来、給湯水中への銅イオン溶出を防止する。さらに
比較的低融点の軟ローで銅管を突き合わせて接合してい
るので、接合部に段差が生じなく、滑らかとなりそのた
め樹脂膜のはがれが生じにくくなり、銅イオン溶出を防
止する。Effect The present invention can prevent direct contact between the hot water and the copper pipe while preventing the elution of copper ions into the hot water while maintaining good heat transfer characteristics. Furthermore, since the copper pipes are butted and joined with a soft brazing material having a relatively low melting point, the joining portion has no step and is smooth, so that peeling of the resin film is less likely to occur and copper ion elution is prevented.
実施例 以下本発明の実施例を添付図面にもとづいて説明する。Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings.
集熱サイクル構成及びその動作は第６図に示す従来例と
同様である。本発明の特徴とする熱交換器の基本構成も
第７図に示す従来例と同じであり、以下相違点について
のみ記述する。The heat collecting cycle configuration and its operation are the same as those of the conventional example shown in FIG. The basic structure of the heat exchanger, which is a feature of the present invention, is the same as that of the conventional example shown in FIG. 7, and only the different points will be described below.
給湯水の循環する水加熱器７は第１図及び第２図に示す
ごとく管内長手方向に均一な溝加工を施し、その上にフ
ッ素樹脂にゴムを混合した樹脂層16を被覆してなる銅管
からなり、従来例と同様冷媒の流動する凝縮管路２と交
互に偏平状に加工された後ラセン状に積層巻き加工がな
される。こゝで冷媒凝縮管路２を構成する材料は従来例
と同じものである。又、上記水加熱器７に連結されるＵ
ベンド11及び出口管13は樹脂層16を被覆した銅管を用い
るが、水加熱器７の入口管端7-iとＵベンド11及び出口
管端7-oと出口管13の管継手部の構成について説明す
る。As shown in FIGS. 1 and 2, the water heater 7 for circulating the hot water supply is provided with uniform groove processing in the longitudinal direction of the pipe, and is coated with a resin layer 16 in which fluorine resin is mixed with rubber. As in the prior art, the pipes are alternately processed with the condensing pipes 2 through which the refrigerant flows, and then the laminated pipes are spirally wound. The material forming the refrigerant condensing conduit 2 is the same as that of the conventional example. Also, U connected to the water heater 7
Copper pipes coated with a resin layer 16 are used as the bend 11 and the outlet pipe 13, but the inlet pipe end 7-i of the water heater 7 and the U bend 11 and the outlet pipe end 7-o of the pipe joint portion of the outlet pipe 13 are used. The configuration will be described.
第１の実施例を第３図により説明する。水加熱器７の入
口管端7-i又は出口管端7-oとＵベンド11又は出口管13は
それぞれ銅ソケット14を介して突き合わせ状態に保持さ
れ融点の低い（約220℃）軟ローにて接合されている。The first embodiment will be described with reference to FIG. The inlet pipe end 7-i or the outlet pipe end 7-o of the water heater 7 and the U-bend 11 or the outlet pipe 13 are held in a butted state via the copper sockets 14, respectively, and are made into a soft low having a low melting point (about 220 ° C.). Are joined together.
第２の実施例を第４図により説明する。水加熱器７の入
口管端7-i又は出口管端7-oとＵベンド11又は出口管13は
管内周面に挿入されたフランジ部を有する樹脂製のスリ
ーブ15と管外周に装着された銅ソケット14にて保持さ
れ、第１の実施例と同様軟ローにて接合されている。A second embodiment will be described with reference to FIG. The inlet pipe end 7-i or the outlet pipe end 7-o of the water heater 7 and the U-bend 11 or the outlet pipe 13 were mounted on the resin sleeve 15 having a flange portion inserted in the inner peripheral surface of the pipe and the outer periphery of the pipe. It is held by the copper socket 14 and joined by soft brazing as in the first embodiment.
本実施例の特徴は、水加熱器７の出入口管端7-i及び7-o
と、Ｕベンド11及び出口管13の管端切断面がスリーブ15
によって陰蔽された構成にしたことにある。The feature of this embodiment is that the inlet and outlet pipe ends 7-i and 7-o of the water heater 7 are
And the end faces of the U bend 11 and the outlet pipe 13 are cut by the sleeve 15
It is in the composition hidden by.
次にＵベンド11及び出口管13と口金12との接合構成を第
５図により説明する。Ｕベンド11又は出口管13は口金12
の拡大部に挿入され、該挿入重ね合せ部に軟ローを浸透
させ接合されるが、本構成の特徴とするところは、口金
12の内径ｄが、Ｕベンド11又は出口管13の内径Ｄより小
さくしたところにある。Next, the joint structure of the U bend 11, the outlet pipe 13 and the base 12 will be described with reference to FIG. U bend 11 or outlet pipe 13 is a base 12
It is inserted into the enlarged portion of the base and is joined by infiltrating a soft braze into the insertion and superposition portion.
The inner diameter d of 12 is smaller than the inner diameter D of the U bend 11 or the outlet pipe 13.
上記構成において、本実施例の特徴点について述べる。The features of the present embodiment having the above configuration will be described.
（１）給湯水が接水循環する銅管路のすべてに樹脂膜16
を被覆することにより、給湯水への銅イオン溶出を防止
することが出来る。(1) Resin film 16 on all copper pipes in which hot water supply circulates
By coating with, it is possible to prevent the elution of copper ions into the hot water.
（２）樹脂膜16材料はフッ素樹脂を主成分とするもので
あり耐水性・耐熱性・耐食性・安全性に優れている。(2) The material of the resin film 16 is mainly composed of fluororesin, and is excellent in water resistance, heat resistance, corrosion resistance, and safety.
（３）樹脂膜16被覆銅管の接合部は融点220℃程度の軟
ローで接合することにより、フッ素樹脂を熱分解させる
ことなく接合が出来る。(3) The joint portion of the copper tube coated with the resin film 16 is joined with a soft solder having a melting point of about 220 ° C., so that the fluororesin can be joined without thermal decomposition.
（４）樹脂膜16被覆銅管の相互接合部を突き合せ状態に
し、銅ソケット14を介し軟ロー付にて接合されているこ
とから、接合部すなわち銅管切断面に段差を生じること
がなく、流れが滑らかとなり切断面からの樹脂膜16のハ
ガレを生じにくくすることが出来る。(4) Since the mutual joints of the resin film 16-coated copper pipes are brought into a butt state and are joined with the copper socket 14 by soft brazing, there is no step at the joints, that is, the cut faces of the copper pipes. As a result, the flow becomes smooth and it is possible to prevent the resin film 16 from peeling off from the cut surface.
又、銅管内面にフランジ部を有する樹脂製のスリーブ15
を挿入する構成にすることによって、銅管切断面が完全
に陰蔽されるから、水流による樹脂膜16がハク離するこ
とがない。Also, a resin sleeve 15 having a flange portion on the inner surface of the copper pipe
Since the cut surface of the copper pipe is completely hidden by the configuration in which the resin film 16 is inserted, the resin film 16 is not separated by the water flow.
（５）樹脂膜16被覆銅管と口金12接続部の内径を口金12
内径ｄ＜銅管内径Ｄの関係にすることによって、銅管切
断面に水流が衝突することがなく、樹脂膜16がハク離す
ることを防止する。(5) Resin film 16 coated copper pipe and base 12
By setting the relation of the inner diameter d <the inner diameter D of the copper tube, the water flow does not collide with the cut surface of the copper tube, and the resin film 16 is prevented from being separated.
発明の効果 以上のように本発明の熱交換器によれば次の効果が得ら
れる。Effects of the Invention As described above, the heat exchanger of the present invention has the following effects.
（１）給湯水の接触する管路内面はすべて樹脂膜が被覆
されており、銅管と給湯水が直接接触することがないこ
とから、給湯水中への銅イオン溶出が防止出来青水問題
を防止することが出来る。加えて、水中のSO4 --濃度や
塩素濃度による孔食防止が図れる。(1) The inner surface of the pipe that comes in contact with the hot water is entirely covered with a resin film, and since the copper pipe does not come into direct contact with the hot water, the elution of copper ions into the hot water can be prevented and the problem of blue water can be prevented. You can do it. In addition, water SO 4 - attained pitting prevention by concentration and the chlorine concentration.
（２）樹脂膜被覆銅管の接合部は融点220℃程度の軟ロ
ーで接合することにより、フッ素樹脂を熱分解させるこ
となく接合が出来る。(2) By joining the joint portion of the resin film-coated copper pipe with a soft solder having a melting point of about 220 ° C., the joint can be conducted without thermally decomposing the fluororesin.
（３）樹脂膜被覆銅管の相互接合部を突き合わせ状態に
し、銅ソケットを介し軟ロー付にて接合されているの
で、接合部すなわち銅管切断面に段差を生じることがな
く、流れが滑らかとなり切断面からの樹脂膜のはがれを
生じにくくすることが出来る。(3) The resin film-covered copper pipes are joined to each other in a butt state, and the copper sockets are joined by soft brazing, so there is no step at the joints, that is, the cut surface of the copper pipe, and the flow is smooth. The peeling of the resin film from the cut surface can be suppressed.
又、銅管内面にフランジ部を有する樹脂製のスリーブを
挿入する構成にすることによって、銅管切断面が完全に
陰蔽されるから、水流による樹脂膜がはく離することが
ない。Further, by adopting the construction in which the resin sleeve having the flange portion is inserted into the inner surface of the copper tube, the cut surface of the copper tube is completely hidden, so that the resin film due to the water flow is not separated.
（４）樹脂膜被膜銅管と口金接続部の内径を口金内径ｄ
＜銅管内径Ｄの関係にすることによって、銅管切断面に
水流が衝突することがなく、樹脂膜がはく離することを
防止する。(4) The inner diameter of the resin film-coated copper pipe and the connection part of the base is the inner diameter of the base d
<By setting the relationship of the inner diameter D of the copper tube, the water flow does not collide with the cut surface of the copper tube and the resin film is prevented from peeling off.
第１図及び第２図は、本発明の一実施例のヒートポンプ
式給湯装置に用いる熱交換器の水加熱器に用いられる銅
管の断面図、第３図及び第４図は、本発明の同実施例の
銅管相互の管接続部の構成断面図、第５図は、本発明の
同実施例の銅管と口金接続部の構成断面図、第６図は集
熱装置の全体を示すシステム図、第７図は熱交換器の全
体を示す要部断面図、第８図及び第９図は従来の継手部
を示す断面図である。 ８……支持板、９……センターボルト、10……ナット、
16……樹脂膜。1 and 2 are cross-sectional views of a copper tube used in a water heater of a heat exchanger used in a heat pump type hot water supply apparatus according to an embodiment of the present invention, and FIGS. 3 and 4 show the present invention. FIG. 5 is a sectional view showing the structure of a pipe connecting portion between copper pipes of the same embodiment, FIG. 5 is a sectional view showing the structure of a copper pipe and a base connecting portion of the embodiment of the present invention, and FIG. A system diagram, FIG. 7 is a cross-sectional view of an essential part showing the entire heat exchanger, and FIGS. 8 and 9 are cross-sectional views showing a conventional joint part. 8 ... Support plate, 9 ... Center bolt, 10 ... Nut,
16 ... Resin film.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮本 和彦 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 山中 直樹 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (56)参考文献 特開 昭59−56658（ＪＰ，Ａ) 実開 昭57−153974（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiko Miyamoto 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Naoki Yamanaka 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 56) References Japanese Unexamined Patent Publication No. 59-56658 (JP, A) Actual No. 57-153974 (JP, U)
Claims (3)
給湯装置に用いられ、断面形状が偏平な冷媒用と給湯水
用の銅管を交互にラセン状に巻付け、その両端に支持板
を設け、前記支持板を締付用のセンターボルトとナット
で締結した熱交換器本体と、前記給湯水用銅管の出入口
管端に口金を具備する接続銅管をそれぞれ接合した前記
給湯水用銅管および前記接続銅管の内面に樹脂膜を被覆
させたヒートポンプ式給湯装置に用いる熱交換器におい
て、熱交換器給湯水用銅管の入口管端とＵベンドおよび
給湯水用銅管の出口管端と出口管をそれぞれ銅ソケット
を介して突き合わせ状態に保持し、軟ローにて接合して
なるヒートポンプ式給湯装置に用いる熱交換器。1. A hot water supply device using the heat of condensation of a heat pump cycle, in which copper pipes for refrigerant and hot water having a flat cross section are alternately wound in a spiral shape, and support plates are provided at both ends thereof. A heat exchanger main body in which the support plate is fastened with a center bolt and a nut for tightening, and a hot water supply copper pipe in which a connecting copper pipe having a mouthpiece at the inlet and outlet pipe ends of the hot water supply water pipe is joined, respectively. In a heat exchanger used in a heat pump type hot water supply device in which an inner surface of the connecting copper pipe is coated with a resin film, an inlet pipe end of the heat exchanger hot water supply copper pipe and an U bend and an outlet pipe end of the hot water supply copper pipe are provided. A heat exchanger used in a heat pump type hot water supply device in which outlet pipes are held in a butt state via copper sockets and joined by soft brazing.
ドおよび給湯水銅管の出口管端と出口管それぞれの接合
部内周面を内側スリーブ、外周面を外側ソケットにより
保持し、前記給湯水用銅管の入口管端とＵベンドおよび
給湯水用銅管出口管端を軟ロー付することで結合してな
る特許請求の範囲第１項記載のヒートポンプ式給湯装置
に用いる熱交換器。2. The inlet pipe end and U-bend of the heat exchanger hot water supply copper pipe and the joint portion of the outlet pipe end and the outlet pipe of the hot water supply copper pipe are held by the inner sleeve and the outer peripheral face by the outer socket. The heat used in the heat pump type hot water supply device according to claim 1, wherein the inlet pipe end of the copper pipe for hot water supply and the U bend and the outlet pipe end of the copper pipe for hot water supply are connected by soft brazing. Exchanger.
連結するＵベンドの他端及び給湯水用銅管の出口管端に
一端を連結する出口管の他端に口金をそれぞれ装着する
とともに該口金接続部とＵベンド及び出口管の内径を口
金接続部内径＜Ｕベンド・出口管内径の関係としてなる
特許請求の範囲第１項記載のヒートポンプ式給湯装置に
用いる熱交換器。3. A heat exchanger is provided with a cap at the other end of a U-bend that connects one end to the inlet pipe end of the hot water supply copper pipe and at the other end of the outlet pipe that connects one end to the outlet pipe end of the hot water supply copper pipe. The heat exchanger used in the heat pump type hot water supply apparatus according to claim 1, wherein the cap connection portion and the U-bend and the inner diameter of the outlet pipe are respectively mounted and the relation of the inner diameter of the base connection portion <U bend / outer pipe inner diameter is satisfied. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20670187A JPH07111316B2 (en) | 1987-08-20 | 1987-08-20 | Heat exchanger used for heat pump type hot water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20670187A JPH07111316B2 (en) | 1987-08-20 | 1987-08-20 | Heat exchanger used for heat pump type hot water supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6449888A JPS6449888A (en) | 1989-02-27 |
| JPH07111316B2 true JPH07111316B2 (en) | 1995-11-29 |
Family
ID=16527685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20670187A Expired - Lifetime JPH07111316B2 (en) | 1987-08-20 | 1987-08-20 | Heat exchanger used for heat pump type hot water supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07111316B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57153974U (en) * | 1981-03-24 | 1982-09-27 | ||
| JPS5956658A (en) * | 1982-09-27 | 1984-04-02 | Matsushita Electric Ind Co Ltd | Heat exchanger for instantaneous water heater |
-
1987
- 1987-08-20 JP JP20670187A patent/JPH07111316B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6449888A (en) | 1989-02-27 |
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