JPH02267427A - Method and device for raising hot water supply temperature in domestic hot water supply system - Google Patents
Method and device for raising hot water supply temperature in domestic hot water supply systemInfo
- Publication number
- JPH02267427A JPH02267427A JP1089481A JP8948189A JPH02267427A JP H02267427 A JPH02267427 A JP H02267427A JP 1089481 A JP1089481 A JP 1089481A JP 8948189 A JP8948189 A JP 8948189A JP H02267427 A JPH02267427 A JP H02267427A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water supply
- heating
- pipe
- temperature
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 148
- 238000000034 method Methods 0.000 title claims description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 239000011810 insulating material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
- Domestic Plumbing Installations (AREA)
- Pipe Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は給湯配管からの熱損失対策として使用される給
湯住棟配管設備の給湯昇温方法及びその装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for increasing the temperature of hot water in a hot water supply residential piping facility, which is used as a countermeasure against heat loss from hot water supply piping.
［従来の技術］
住棟単位の集中給湯設備は、住棟配管からの熱損失対策
かひとつの課題とな９ている。配管からの熱損失は、中
を通る給湯温度が高いほど、また配管総延長が長いほど
大きくなるといえる。[Prior Art] One of the issues with central hot water supply equipment for each residential building is how to counter heat loss from the residential building piping9. It can be said that the heat loss from the piping increases as the temperature of the hot water passing through the piping increases and the total length of the piping increases.
給湯の住棟配管設備の場合、非循環式ては配管内に死水
を作りやすく、循環式では非循環式よりも配管からの熱
損失が大きくなるという問題がある。設備としては循環
式のほうが望ましく、従って熱損失対策がどうしても重
要となる。In the case of residential piping equipment for hot water supply, non-circulating types tend to create dead water in the pipes, and circulating types have the problem of greater heat loss from the piping than non-circulating types. Circulation type equipment is preferable, and therefore measures against heat loss are essential.
熱損失対策として給湯昇温装置が提案され、その構成は
給湯住棟配管設備において、ボイラに接続されたヘッダ
より延在する各給湯縦管に長手方向全体にわたって昇温
ヒータを螺旋状に巻付けたものである。A hot water heating device has been proposed as a measure against heat loss, and its configuration consists of a heating heater spirally wrapped around each hot water vertical pipe extending from the header connected to the boiler in a spiral shape in the piping equipment of a hot water supply residential building. It is something that
給湯縦管内の給湯の温度か低下した場合、昇温ヒータで
給湯縦管の長手方向全体にわたって給湯を加熱し、これ
により給湯を一定の温度に保持する給湯昇温方法を採用
している。When the temperature of the hot water in the hot water supply pipe drops, a heating heater is used to heat the hot water throughout the longitudinal direction of the hot water supply pipe, thereby maintaining the hot water at a constant temperature.
［発明か解決しようとする課題］
しかし、前記した従来の給湯昇温方法及びその装置では
、非循環式のものは依然として死水を作りやすく、その
結果、給湯縦管の上下で温度差が発生してしまう。これ
に対処するためには循環式に依らなければならず、循環
ポンプの設備費ないし運転費が高くつき、騒音の発生を
招来するという問題があった。しかも昇温ヒータも大容
量のもを給湯縦管に取付けなければならず、昇温ヒータ
の設備費ないし？Ｉ！気消費か高くついてしまうという
問題があった。さらに前記循環ポンプや螺旋状の昇温ヒ
ータの取付けによって設備が大型化し、住棟屋上環の省
スペース化が困難となるという問題があった。[Problem to be solved by the invention] However, in the conventional hot water heating method and device described above, the non-circulating type still tends to produce dead water, and as a result, a temperature difference occurs between the top and bottom of the vertical hot water pipe. It ends up. In order to cope with this problem, a circulation system must be used, which poses problems in that the equipment and operation costs for the circulation pump are high and noise is generated. Moreover, a large-capacity temperature-raising heater must be installed in the hot water supply vertical pipe, and there is no equipment cost for the temperature-raising heater. I! The problem was that it consumed energy and was expensive. Furthermore, the installation of the circulation pump and the spiral temperature-raising heater increases the size of the equipment, making it difficult to save space on the roof of the housing building.
本発明は前記問題点に着目してなされたもので、その目
的とするところは、給湯縦管内の死水の発生を防止し、
循環ポンプを不要にし、騒音を減少させ、設備の小型化
および住棟屋上環の省スペース化を図ることのてきる給
湯住棟配管設備の給湯昇温方法及びその装置を提供する
ことにある。The present invention has been made in view of the above-mentioned problems, and its purpose is to prevent the occurrence of dead water in vertical hot water pipes,
An object of the present invention is to provide a method and device for heating hot water in hot water supply piping equipment for a residential building, which eliminates the need for a circulation pump, reduces noise, downsizes the equipment, and saves space in the residential building ring.
［課題を解決するための手段］
前記目的を達成する本発明の給湯住棟配管設備の給湯昇
温方法はボイラ又は電気温水器に接続されたヘッダより
延在する給湯縦管からの熱損失対策として給湯縦管内の
給湯を昇温する給湯住棟配管設備の給湯昇温方法におい
て、前記給湯縦管な含む昇温循環経路の２本の縦路のう
ち、一方の下半部内の給湯な昇温ヒータで加熱し、昇温
ヒータからの熱を対流により昇温循環経路内を循環伝達
させて給湯縦管内の７１ｉ！ｉ湯を昇温することを特徴
とする。[Means for Solving the Problems] The hot water temperature raising method of the hot water supply housing piping equipment of the present invention that achieves the above-mentioned object is a measure against heat loss from a hot water supply vertical pipe extending from a header connected to a boiler or an electric water heater. In a method for raising the temperature of hot water in a hot water supply building piping equipment, which raises the temperature of hot water in a vertical hot water pipe, the heating of hot water in the lower half of one of the two vertical passages of the temperature increasing circulation path including the vertical hot water pipe. 71i in the hot water supply vertical pipe by heating with a hot water heater and circulating the heat from the hot water heating heater through the temperature raising circulation path by convection! It is characterized by raising the temperature of hot water.
また、前記目的を達成する本発明の給湯住棟配管設備の
給湯昇温装置は、ボイラ又は電気温水器に接続されたヘ
ッダより延在する給湯縦管からの熱損失を補填する昇温
手段を備えてなる給湯住棟配管設備の給湯昇温装置にお
いて、前記昇温手段は給湯縦管を含む昇温循環経路を形
成し、この昇温循環経路の２本の縦路のうち、一方の下
半部に昇温ヒータを配設してなることを特徴とする。Further, the hot water heating device for hot water supply residential piping equipment of the present invention that achieves the above object includes a heating means for compensating for heat loss from a vertical hot water pipe extending from a header connected to a boiler or an electric water heater. In the hot water heating device for the hot water supply housing piping equipment, the heating means forms a heating circulation path including a hot water supply vertical pipe, and one of the two vertical paths of the heating circulation path is connected to the bottom of the heating circulation path. It is characterized by having a temperature increasing heater arranged in the half part.
さらに好ましい本発明の実施態様によれば、■昇温循環
経路は給湯縦管とバイパス管とで形成してなること、■
昇温循環経路は給湯縦管と他の給湯縦管とで形成してな
ることを特徴とする。According to a further preferred embodiment of the present invention, (1) the heating circulation path is formed by a hot water supply vertical pipe and a bypass pipe;
The heating circulation path is characterized by being formed by a hot water supply vertical pipe and another hot water supply vertical pipe.
［作用］
給湯縦管内の給湯が熱損失により温度低下した場合、こ
れを検知し、昇温循環経路の２本の縦路のうち、一方の
下半部内の給湯を昇温ヒータで加熱すると、昇温循環経
路内では、対流が生じ、この対流により昇温ヒータから
の熱が循環伝達されるので、給湯縦管内の給湯が一定温
度に昇温される。[Function] When the temperature of the hot water in the hot water supply vertical pipe decreases due to heat loss, this is detected and the hot water in the lower half of one of the two vertical passages of the temperature increasing circulation path is heated by the temperature increasing heater. Convection occurs in the temperature raising circulation path, and heat from the temperature raising heater is circulated and transferred by this convection, so that the hot water in the hot water supply vertical pipe is heated to a constant temperature.
その結果、給湯縦管内に死水が生ずるのを防止でき、循
環ポンプを不要にし、騒音を減少させ、設備の小型化お
よび住棟屋上環の省スペース化を図ることができる。し
たがって、前記問題点を除去することができる。As a result, it is possible to prevent dead water from forming in the hot water supply vertical pipe, eliminate the need for a circulation pump, reduce noise, downsize the equipment, and save space on the roof of the residential building. Therefore, the above-mentioned problem can be eliminated.
［実施例］ 以下本発明の実施例を図面に基づいて詳細に説明する。[Example] Embodiments of the present invention will be described in detail below based on the drawings.
第１図は本発明の第１の実施例に係る給湯住棟配管設備
の給湯昇温装置を示す構成図、第２図は第１図のＩＩ
−ＩＩ線断面図である。FIG. 1 is a configuration diagram showing a hot water heating device for a hot water supply housing piping system according to a first embodiment of the present invention, and FIG. 2 is a diagram showing II of FIG.
-II line sectional view.
給湯昇温装置の説明に先たって給湯住棟配管設備を説明
すれば、住棟屋上にはヒータ又はボイラ４を備えた屋上
貯湯槽５、およびヘッダ６か配設されている。ヘッダ６
より垂下状に延在する給湯縦管７が配設され、この給湯
縦管７に各階ごとに給湯横枝管８が配設されており、こ
の給湯横枝管８の先端と、給湯縦管７の上下端とに弁９
が夫々配設されている。Before explaining the hot water heating device, the piping equipment for the hot water supply residence will be explained. A rooftop hot water storage tank 5 equipped with a heater or boiler 4 and a header 6 are provided on the roof of the residence. header 6
A hot water supply vertical pipe 7 extending in a drooping manner is provided, and a hot water supply horizontal branch pipe 8 is provided for each floor on this hot water supply vertical pipe 7. Valve 9 at the upper and lower ends of 7
are arranged respectively.
そして、このような給湯住棟配管設備は本発明の要旨で
ある給湯昇温装置を備えている。この給湯昇温装置は昇
温循環経路１１を有している。この昇温循環経路１１は
給湯縦管７と、これに沿って配設した小径のバイパス管
１２とで閉回路としたものである。また、給湯縦管７に
は中央位置に中間階バンドヒータ１３が、又は下端部の
位置にバンドヒータ１４或いはプラグヒータ】５が配設
されている。第２図に示すように、給湯縦管７およびバ
イパス管１２はロックウール等の保温材Ｉ６で覆われ、
保温材１６は被覆材１７て覆われている。Such hot water supply residential building piping equipment is equipped with a hot water heating device which is the gist of the present invention. This hot water heating device has a heating circulation path 11 . This temperature increasing circulation path 11 is a closed circuit consisting of a hot water supply vertical pipe 7 and a small diameter bypass pipe 12 disposed along the vertical pipe 7. Further, the hot water supply vertical pipe 7 is provided with an intermediate floor band heater 13 at the center position, or a band heater 14 or a plug heater 5 at the lower end position. As shown in FIG. 2, the hot water supply vertical pipe 7 and the bypass pipe 12 are covered with a heat insulating material I6 such as rock wool.
The heat insulating material 16 is covered with a covering material 17.
次に前記構成の給湯昇温装置による給湯昇温方法を説明
する。Next, a method for raising the temperature of hot water using the hot water heating device having the above configuration will be explained.
給湯縦管７内の給湯が温度低下した場合、これを図示省
略の温度センサて検知し、この検知信号に基づき、ハン
トヒータ１３，１４又はプラグヒータ１５に電圧を印加
すると、給湯縦管７の下半部内の給湯は加熱されて昇温
するとともに比重が減少する。このため、昇温循環経路
１１内に対流が生ずる；その結果、昇温循環経路１１内
ではバンドヒータ１４又はプラグヒータ１５からの熱は
対流により循環伝達され、これにより給湯縦管７内の給
湯は一定温度に界温し、保持される。When the temperature of the hot water in the vertical hot water pipe 7 drops, this is detected by a temperature sensor (not shown), and based on this detection signal, when a voltage is applied to the hunt heaters 13, 14 or the plug heater 15, the temperature of the hot water in the vertical hot water pipe 7 decreases. The hot water in the half is heated and its temperature increases and its specific gravity decreases. Therefore, convection occurs in the temperature increasing circulation path 11; as a result, the heat from the band heater 14 or the plug heater 15 is circulated and transferred in the temperature increasing circulation path 11 by convection, thereby causing the hot water supply in the hot water supply vertical pipe 7. is kept at a constant temperature.
第３図は本発明の第２の実施例に係る！ｔ＠湯昇温装置
を示す構成図である。FIG. 3 relates to a second embodiment of the present invention! t@ is a configuration diagram showing a hot water temperature raising device.
この第２の実施例に係る給湯昇温装置は前記第１の実施
例と略同様の構成を有するが、昇温循環経路１１ａ、ｌ
ｌｂ、ｌｌｃ、ｌｉｄを給湯縦管７ ａ、７ ｂ、７
ｃ。The hot water heating device according to the second embodiment has substantially the same configuration as the first embodiment, but the heating circulation paths 11a, l
lb, llc, lid to hot water supply vertical pipes 7 a, 7 b, 7
c.
７ｄ、７ｃ同士て形成した点で特徴を有する。すなわち
第１〜第５の給湯縦管７ ａ、７ ｂ、７ ｃ、７ ｄ
、７ ｅのうちＪ第５の給湯縦管７ｅを残して第１〜第
４の給湯縦管７ ａ、７ ｂ、７ ｃ、７ ｄの下半分
にパントヒータ１３．１４又はプラグヒータ１５が配設
されている。これにより第１〜第４の各給湯縦管７ａ、
７ｂ。It is distinctive in that 7d and 7c are formed together. That is, the first to fifth hot water supply vertical pipes 7a, 7b, 7c, 7d
, 7e, a pant heater 13, 14 or a plug heater 15 is arranged in the lower half of the first to fourth hot water supply vertical pipes 7a, 7b, 7c, and 7d, leaving the J-5th hot water supply vertical pipe 7e. It is set up. As a result, each of the first to fourth hot water supply vertical pipes 7a,
7b.
７ｃ、７ｄと、ヘッダ６および集合管１と、第５の給湯
縦管７ｅとで第１〜第４の昇温循環経路１１ａ１１ｂ、
ｌｌｃ、ｌｌｄが形成される。7c, 7d, the header 6, the collecting pipe 1, and the fifth hot water supply vertical pipe 7e to form first to fourth temperature increasing circulation paths 11a11b,
llc and lld are formed.
この第２の実施例の作用は第１の実施例と略同様である
ので、その説明を省略するが、既設の第１〜第５の給湯
縦管７ ａ、７ ｂ、７ ｃ、７ ｄ、７ ｅのうち、
第１〜第４の給湯縦管７ａ、７ｂ、７ｃ、７ｄの下半分
にバンドヒータ１：］、１４およびプラグヒータ１５を
配設するたけて第１〜第４の昇温循環経路１１ａ、ｌｌ
ｂ、ｌｌｃ、ｌｌｄが形成されるので、設備コストの低
廉化が図られる。Since the operation of the second embodiment is substantially the same as that of the first embodiment, the explanation thereof will be omitted, but the existing first to fifth hot water supply vertical pipes 7 a, 7 b, 7 c, 7 d ,7 out of e.
Band heaters 1: ], 14 and plug heaters 15 are arranged in the lower halves of the first to fourth hot water supply vertical pipes 7a, 7b, 7c, 7d.
b, llc, and lld are formed, the equipment cost can be reduced.
なお１本発明は前記実施例に限定されるものではない。Note that the present invention is not limited to the above embodiments.
例えば、第１および第２の実施例では。For example, in the first and second embodiments.
ヘッダより垂下状に延在する給湯縦管の場合について説
明したが、これに限らず、ヘッダより鋸刃状に延在する
給湯縦管の場合に対して本発明を適用することもできる
。また、ヒータ又はボイラ４、貯湯槽および／又はヘッ
ダ６は屋上に限らず、ポンプの使用を考慮すれば地上等
であってもよい。Although the case has been described in which the hot water supply vertical pipe extends downward from the header, the present invention is not limited to this, and the present invention can also be applied to a case where the hot water supply vertical pipe extends from the header in a sawtooth shape. Further, the heater or boiler 4, hot water tank, and/or header 6 are not limited to the rooftop, but may be located above ground, etc., if the use of a pump is taken into consideration.
［発明の効果コ
本発明によれば、給湯縦管を含む昇温循環経路の２本の
縦路のうち、一方の下半部内の給湯な昇温ヒータて加熱
し、昇温ヒータからの熱を昇温循環経路内を循環伝達さ
せて給湯縦管内の給湯を昇温する構成としたので、以下
のような効果が得られる。[Effects of the Invention] According to the present invention, the hot water is heated by the temperature rising heater in the lower half of one of the two vertical passages of the temperature rising circulation path including the hot water supply vertical pipe, and the heat from the temperature rising heater is heated. The structure is such that the temperature of the hot water in the hot water supply vertical pipe is increased by circulating and transmitting the water through the temperature increasing circulation path, so that the following effects can be obtained.
■昇温循環経路内の対流により冷い死水の発生を防止す
ることができ、適温の湯が瞬時に給湯てきる。■Convection in the heating circulation path prevents the generation of cold, dead water, and provides instant hot water at the appropriate temperature.
■給湯循環が不要となり、或いは間欠的循環で温度保障
が可能となるので、循環ポンプの設備費ないし運転費を
省力化することができる。■Since hot water circulation is not required or temperature can be guaranteed through intermittent circulation, equipment costs and operating costs for circulation pumps can be reduced.
■循環ポンプの運転が無くなるので、騒音を減少させる
ことができる。■Noise can be reduced because the circulation pump does not need to be operated.
■循環ポンプか不要となり、昇温ヒータも少なくて済み
、そのため、設備が小型化され、住棟屋上等の省スペー
ス化につながり、美観上からも好ましい。■There is no need for a circulation pump, and there is also less need for temperature-raising heaters, which leads to smaller equipment and space savings on the roofs of residential buildings, which is also desirable from an aesthetic point of view.
■昇温循環経路内の対流により給湯縦管の長手方向全体
にわたって昇温を均一化することがてきる。■Convection within the heating circulation path makes it possible to equalize the temperature rise over the entire length of the hot water supply vertical pipe.
第１図は本発明の第１の実施例に係る給湯住棟配管設備
の給湯昇温装置を示す構成図、第２図は第１図のＩＩ
−ＩＩ線断面図、第３図は本発明の第２の実施例に係る
給湯住棟配管設備の給湯昇温装置を示す構成図である。
６：ヘッダ
７：給湯縦管
１１、昇温循環経路
１２：バイパス管
１３、中間階バンドヒータ
１４：バンドヒータ
１５：プラクヒータ
代
理
人
弁
理
士
坂
口
信
昭
第
図FIG. 1 is a configuration diagram showing a hot water heating device for a hot water supply housing piping system according to a first embodiment of the present invention, and FIG. 2 is a diagram showing II of FIG.
-II line sectional view and FIG. 3 are configuration diagrams showing a hot water heating device for a hot water heating residential piping facility according to a second embodiment of the present invention. 6: Header 7: Hot water supply vertical pipe 11, temperature increase circulation path 12: bypass pipe 13, intermediate floor band heater 14: band heater 15: plaque heater Representative patent attorney Nobuaki Sakaguchi Diagram
Claims (1)
湯縦管からの熱損失対策として給湯縦管内の給湯を昇温
する給湯住棟配管設備の給湯昇温方法において、前記給
湯縦管を含む昇温循環経路の２本の縦路のうち、一方の
下半部内の給湯を昇温ヒータで加熱し、昇温ヒータから
の熱を対流により昇温循環経路内を循環伝達させて給湯
縦管内の給湯を昇温することを特徴とする給湯住棟配管
設備の給湯昇温方法。 ２、ボイラに接続されたヘッダより下向きに延在する給
湯縦管からの熱損失を補填する昇温手段を備えてなる給
湯住棟配管設備の給湯昇温装置において、前記昇温手段
は給湯縦管を含む昇温循環経路を形成し、この昇温循環
経路の２本の縦路のうち、一方の下半部に昇温ヒータを
配設してなることを特徴とする給湯住棟配管設備の給湯
昇温装置。 ３、昇温循環経路は給湯縦管とバイパス管とで形成して
なることを特徴とする請求項２記載の給湯住棟配管設備
の給湯昇温装置。 ４、昇温循環経路は給湯縦管と他の給湯縦管とで形成し
てなることを特徴とする請求項２記載の給湯住棟配管設
備の給湯昇温装置。[Scope of Claims] 1. A hot water heating method for hot water supply housing piping equipment for heating hot water in a hot water supply vertical pipe as a measure against heat loss from a hot water supply vertical pipe extending downward from a header connected to a boiler, The hot water in the lower half of one of the two vertical passages of the heating circulation path including the hot water supply vertical pipe is heated by a heating heater, and the heat from the heating heater is circulated within the heating circulation path by convection. A method for raising the temperature of hot water in a hot water supply residence piping equipment, characterized by increasing the temperature of hot water in a vertical hot water supply pipe by transmitting the water to the hot water supply pipe. 2. In a hot water heating device for hot water supply housing piping equipment, which is equipped with a temperature raising means for compensating for heat loss from a hot water supply vertical pipe extending downward from a header connected to a boiler, the temperature raising means is provided with a hot water supply vertical pipe. A piping system for a hot water supply residence, characterized in that a heating circulation path including pipes is formed, and a heating heater is disposed in the lower half of one of the two vertical passages of the heating circulation path. hot water heating device. 3. The hot water heating device for hot water supply residential building piping equipment according to claim 2, wherein the temperature raising circulation path is formed by a vertical hot water pipe and a bypass pipe. 4. The hot water heating device for hot water supply residential building piping equipment according to claim 2, wherein the temperature raising circulation path is formed by a hot water supply vertical pipe and another hot water supply vertical pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1089481A JP2568435B2 (en) | 1989-04-07 | 1989-04-07 | Hot water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1089481A JP2568435B2 (en) | 1989-04-07 | 1989-04-07 | Hot water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02267427A true JPH02267427A (en) | 1990-11-01 |
| JP2568435B2 JP2568435B2 (en) | 1997-01-08 |
Family
ID=13971930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1089481A Expired - Fee Related JP2568435B2 (en) | 1989-04-07 | 1989-04-07 | Hot water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2568435B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5422941A (en) * | 1977-07-22 | 1979-02-21 | Osaka Gas Co Ltd | Commonly used piping system for supplying heat medium for heating and cooling gathered houses |
| JPS59131833A (en) * | 1983-01-18 | 1984-07-28 | Keizo Kajitani | Hot-water supply combined with space heating system |
| JPS6370032A (en) * | 1986-09-08 | 1988-03-30 | Nippon Benkan Kogyo Kk | Open type degassing system in circulation type hot water feeding facility |
-
1989
- 1989-04-07 JP JP1089481A patent/JP2568435B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5422941A (en) * | 1977-07-22 | 1979-02-21 | Osaka Gas Co Ltd | Commonly used piping system for supplying heat medium for heating and cooling gathered houses |
| JPS59131833A (en) * | 1983-01-18 | 1984-07-28 | Keizo Kajitani | Hot-water supply combined with space heating system |
| JPS6370032A (en) * | 1986-09-08 | 1988-03-30 | Nippon Benkan Kogyo Kk | Open type degassing system in circulation type hot water feeding facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2568435B2 (en) | 1997-01-08 |
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