JPH07239152A - Circulation type water heating equipment - Google Patents
Circulation type water heating equipmentInfo
- Publication number
- JPH07239152A JPH07239152A JP3001394A JP3001394A JPH07239152A JP H07239152 A JPH07239152 A JP H07239152A JP 3001394 A JP3001394 A JP 3001394A JP 3001394 A JP3001394 A JP 3001394A JP H07239152 A JPH07239152 A JP H07239152A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water storage
- storage tank
- water supply
- pump device
- 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.)
- Pending
Links
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、循環式給湯設備に関す
るものであり、特に建物の屋上に給湯源を配置せずに地
上，地下または建物の下層階に配置するタイプ（以下、
給湯源非屋上設置タイプと云う）の循環式給湯設備に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating hot water supply facility, and in particular, a type of hot water supply source arranged on the ground, underground or lower floors of a building (hereinafter referred to as
It is a non-rooftop hot water supply type circulating water heater.
【０００２】[0002]
【従来の技術】給湯源を建物の屋上に配置すると、重力
を利用して湯を供給できる利点があるものの、建物の上
部の荷重が重くなるため、建物を堅ろうに作る必要があ
る。そこで最近では給湯源非屋上設置タイプの循環式給
湯設備が用いられるようになってきた。図３は給湯源を
地上に配置した従来の給湯源非屋上設置タイプの循環式
給湯設備の概略図を示している。この循環式給湯設備で
は、図示しない給水源から供給された水をガスや石油を
燃料とするボイラーからなる給湯源１０１で沸かして湯
にし、この湯をポンプ装置１０２を用いて温水循環路１
０３内に循環させている。ボイラー１０１は、最高使用
圧力を比較的高く設定しているため、ポンプ装置１０２
による湯の吸引や湯の循環に十分に耐えられるように設
計されている。温水循環路１０３は多層階の建物の各階
の複数の蛇口（給湯口）１０３ａ…に湯を供給するよう
に配設されている。2. Description of the Related Art When a hot water supply source is arranged on the roof of a building, it has the advantage that gravity can be used to supply hot water, but since the load on the top of the building becomes heavy, it is necessary to make the building rigid. Therefore, recently, a circulating hot water supply system of a non-top water supply type rooftop installation type has been used. FIG. 3 is a schematic view of a conventional hot water source non-rooftop type circulating hot water supply facility in which a hot water supply source is arranged on the ground. In this circulating hot water supply facility, water supplied from a water supply source (not shown) is boiled into hot water by a hot water supply source 101 including a boiler that uses gas or oil as a fuel, and the hot water circulation path 1 is formed using a pump device 102.
It circulates in 03. The boiler 101 sets the maximum working pressure to a relatively high value, so the pump device 102
It is designed to fully withstand hot water suction and hot water circulation. The hot water circulation path 103 is arranged to supply hot water to a plurality of faucets (hot water supply ports) 103a on each floor of a multi-story building.
【０００３】従来は、給湯源を地上，地下または建物の
下層階に配置するためには、給湯源として最高使用圧力
の比較的高いボイラーを用いる必要があると考えられて
いた。またボイラー１０１の代わりに給水源の給水圧力
で湯を給湯する貯湯式電気温水器を地上に配置したとし
ても、最高使用圧力が低いために、１０ｍを超える多層
階の蛇口に湯を供給することはできないと考えられてい
た。Conventionally, it has been considered necessary to use a boiler having a relatively high maximum operating pressure as a hot water supply source in order to arrange the hot water supply source on the ground, underground or lower floors of a building. Even if a hot water storage type electric water heater that supplies hot water with the water supply pressure of the water supply source is installed on the ground instead of the boiler 101, the hot water is supplied to the faucet of the multi-story floor exceeding 10 m because the maximum operating pressure is low. Was thought to be impossible.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、最高使
用圧力が高いボイラーを給湯源として用いる従来の循環
式給湯設備では、ボイラーを取扱う専門の管理者（ボイ
ラー取扱主任者）が必要になるという問題がある上、給
湯源の価格が高くなるという問題があった。However, in the conventional circulating hot water supply equipment using a boiler having a high maximum working pressure as a hot water supply source, there is a problem that a specialized manager (boiler handling chief) who handles the boiler is required. In addition, there was a problem that the price of the hot water source increased.
【０００５】本発明の目的は、ボイラー取扱主任者を必
要としない給湯源非屋上設置タイプの循環式給湯設備を
提供することにある。An object of the present invention is to provide a circulating hot water supply system of a hot water supply source non-rooftop installation type which does not require a boiler handling supervisor.
【０００６】[0006]
【課題を解決するための手段】本発明は、多層階の建物
の各階に設けられる複数の給湯口に湯を供給するように
配設された温水循環路と、地上，地下または建物の下層
階に配置された給湯源と、給湯源で沸かした湯を温水循
環路に流すポンプ装置とを備えてなる循環式給湯設備を
対象にする。本発明では給湯源として貯湯式電気温水器
を用い、貯湯式電気温水器とポンプ装置との間に開放型
貯湯槽を設ける。尚各階といっても、全ての階に給湯口
が設けられていなければならないわけではなく、給湯口
の無い階があってもよいのは勿論である。According to the present invention, there is provided a hot water circulation passage arranged to supply hot water to a plurality of hot water inlets provided on each floor of a multi-story building, and a ground floor, an underground floor or a lower floor of the building. A circulating hot water supply facility including a hot water supply source disposed in the hot water supply source and a pump device for flowing hot water boiled by the hot water supply source into a hot water circulation path. In the present invention, a hot water storage electric water heater is used as a hot water supply source, and an open hot water storage tank is provided between the hot water storage electric water heater and the pump device. It should be noted that each floor does not necessarily have to be provided with a hot water supply port on all floors, and it goes without saying that there may be a floor without a hot water supply port.
【０００７】給湯源としての貯湯式電気温水器として
は、一台の大型の貯湯式電気温水器を用いてもよいが、
開放型貯湯槽に接続された共通の給湯管に給湯口が接続
された複数台の貯湯式電気温水器を用いてもよい。この
ようにすると、一般に普及している簡易型の貯湯式電気
温水器を複数台用いて貯湯式電気温水器を構成すること
ができる。特に、給湯源を最高使用圧力が１ｋｇｆ／ｃ
ｍ2 以下の複数台の貯湯式電気温水器から構成するのが
好ましい。最高使用圧力が１ｋｇｆ／ｃｍ2 以下の貯湯
式電気温水器は、現在一般的に市販されている貯湯式電
気温水器であり、その使用にあたっては、ボイラー取扱
主任者をおくことを必要としない。複数台の貯湯式電気
温水器の設置の態様は任意であるが、開放型貯湯槽に接
続された共通の給湯管に各貯湯式電気温水器の給湯口を
接続する構造を用いると、接続及び配置が最も簡単にな
る。As the hot water storage type electric water heater as a hot water supply source, one large hot water storage type electric water heater may be used.
A plurality of hot water storage type electric water heaters may be used in which a hot water supply port is connected to a common hot water supply pipe connected to an open hot water storage tank. By doing so, the hot water storage type electric water heater can be configured by using a plurality of simple hot water storage type electric water heaters that are generally popular. Especially, the maximum operating pressure of the hot water supply source is 1 kgf / c
It is preferable to be composed of a plurality of hot water storage type electric water heaters of m 2 or less. The hot water storage type electric water heater having a maximum working pressure of 1 kgf / cm 2 or less is a hot water storage type electric water heater that is generally commercially available at present, and it is not necessary to send a boiler handling supervisor to use it. A plurality of hot water storage type electric water heaters may be installed in any mode, but if a structure in which the hot water supply port of each hot water storage type electric water heater is connected to a common hot water supply pipe connected to the open hot water storage tank is used, the connection and Easy to deploy.
【０００８】またポンプ装置として、並列接続された主
ポンプと補助ポンプとを備えたものを用いると、主ポン
プが故障してた場合でも、補助ポンプにより湯の供給を
維持することができるため、信頼性が高くなる。特に補
助ポンプを小形にすると、同じ大きさの主ポンプを並列
接続させたポンプ装置に比べてポンプ装置の価格を安く
できる。When a pump device having a main pump and an auxiliary pump connected in parallel is used as the pump device, the hot water supply can be maintained by the auxiliary pump even if the main pump fails. Higher reliability. In particular, if the auxiliary pump is downsized, the cost of the pump device can be reduced as compared with a pump device in which main pumps of the same size are connected in parallel.
【０００９】ポンプ装置及び開放形貯湯槽を温水循環路
に対してどのように配置するかは、温水循環路の構成に
応じて異なってくる。例えば、完全に独立した温水循環
路を用いる場合には、ポンプ装置を開放形貯湯槽と温水
循環路の間に配置することになる。このような温水循環
路を用いる場合には、温水循環路の途中に温水循環路中
で湯を循環させる循環用ポンプと温水循環路中の湯を加
熱する昇温器とを設けるのが好ましい。このようにする
と、温水循環路中の湯の温度の低下を防止することがで
きる。尚完全に独立した温水循環路を用いる場合には、
開放形貯湯槽内の湯の温度が低下する。しかしながら開
放形貯湯槽内の湯は温水循環路に設けた昇温器で加熱さ
れた湯と混合されるため、実用上大きな問題は生じな
い。尚開放形貯湯槽内の湯の温度の低下を防止するため
に、開放形貯湯槽内に保温用ヒータを配置してもよいの
は勿論である。How to arrange the pump device and the open-type hot water storage tank with respect to the hot water circulation passage depends on the configuration of the hot water circulation passage. For example, when a completely independent hot water circulation path is used, the pump device is arranged between the open hot water storage tank and the hot water circulation path. When such a hot water circulation path is used, it is preferable to provide a circulation pump for circulating hot water in the hot water circulation path and a temperature raising device for heating the hot water in the hot water circulation path in the middle of the hot water circulation path. By doing so, it is possible to prevent the temperature of the hot water in the hot water circulation path from decreasing. When using a completely independent hot water circuit,
The temperature of the hot water in the open hot water storage tank drops. However, since the hot water in the open-type hot water storage tank is mixed with the hot water heated by the temperature raising device provided in the hot water circulation path, there is no practical problem. Of course, in order to prevent the temperature of the hot water in the open hot water storage tank from decreasing, a heat retention heater may be arranged in the open hot water storage tank.
【００１０】またポンプ装置及び開放形貯湯槽を温水循
環路の一部を構成するように配置することもできる。こ
の場合には、ポンプ装置を温水循環路の循環ポンプとし
て利用することができるため、必要なポンプの台数を減
らすことができ、設備の価格を下げることができる。ま
たこの場合に、開放形貯湯槽内に保温用ヒータを配置す
ると、開放形貯湯槽内の湯の温度の低下と温水循環路内
の湯の温度の低下の両方を１台のヒータで防止すること
ができる。Further, the pump device and the open type hot water storage tank may be arranged so as to form a part of the hot water circulation path. In this case, since the pump device can be used as a circulation pump for the hot water circulation path, the number of required pumps can be reduced and the cost of the equipment can be reduced. Further, in this case, if the heat retention heater is arranged in the open type hot water storage tank, one heater can prevent both the decrease in the temperature of the hot water in the open type hot water storage tank and the decrease in the temperature of the hot water in the hot water circulation path. be able to.
【００１１】開放型貯湯槽に貯湯液面を検出する液面検
出装置を設け、給湯源と開放型貯湯槽との間に液面検出
装置の出力に基づいて開放型貯湯槽内の液面を所定量に
保つように駆動制御される流量調節弁を設けるのが好ま
しい。このような設備を設けると、開放型貯湯槽内の湯
が溢れたり、枯れたりすることがない。The open type hot water storage tank is provided with a liquid level detection device for detecting the liquid level of the hot water storage, and the liquid level in the open type hot water storage tank is set between the hot water supply source and the open type hot water storage tank based on the output of the liquid level detection device. It is preferable to provide a flow rate control valve that is driven and controlled so as to maintain a predetermined amount. By providing such equipment, the hot water in the open type hot water storage tank will not overflow or die.
【００１２】[0012]
【作用】一般的な貯湯式電気温水器は最高使用圧力が低
いため、ボイラー取扱主任者をおくことを必要としな
い。しかしながら、貯湯式電気温水器を地上，地下また
は建物の下層階に配置して使用する場合には、最高使用
圧力が低いために給水源の給水圧力だけで多層階の建物
の給湯口に湯を供給することはできない。また貯湯式電
気温水器の貯湯タンクは非開放型であるため、温水器の
貯湯タンク内の湯をポンプ装置を用いて直接温水循環路
に送り出したり、一度送り出した湯を貯湯タンクに戻し
て湯を循環させることもできない。[Operation] Since the maximum working pressure of a general hot water storage type electric water heater is low, it is not necessary to have a boiler handling supervisor. However, when the hot water storage type electric water heater is used above ground, underground, or on the lower floors of the building, the maximum operating pressure is low, so hot water is supplied to the hot water supply port of the multi-story building only by the water supply pressure of the water source. Cannot be supplied. In addition, since the hot water storage tank of the hot water storage type electric water heater is a non-open type, the hot water in the hot water storage tank of the water heater is sent directly to the hot water circulation path using a pump device, or the hot water once sent is returned to the hot water storage tank. Cannot be circulated.
【００１３】これに対して開放型貯湯槽は内部の湯をポ
ンプ装置を用いて直接送り出しても槽内の圧力が高くな
ることはなく、また一度送り出した湯を開放型貯湯槽に
戻して湯を循環させることもできる。そこで本発明で
は、貯湯式電気温水器とポンプ装置との間に開放型貯湯
槽を設けることにより、貯湯式電気温水器内の湯を多層
階の建物の各階の複数の給湯口にポンプ装置を用いて供
給できるようにした。即ち本発明の循環式給湯設備では
貯湯式電気温水器内の湯を開放型貯湯槽に貯湯し、貯湯
した湯をポンプ装置を用いて温水循環路に流すため、貯
湯式電気温水器からなる給湯源を地上，地下または建物
の下層階に配置することができ、ボイラー取扱主任者を
必要としない低価格な給湯源非屋上設置タイプの循環式
給湯設備を得ることができる。On the other hand, in the open type hot water storage tank, even if the internal hot water is directly sent out by using a pump device, the pressure in the tank does not become high, and the hot water once sent is returned to the open hot water storage tank. Can also be circulated. Therefore, in the present invention, by providing an open type hot water storage tank between the hot water storage electric water heater and the pump device, the hot water in the hot water storage electric water heater is provided with a pump device at a plurality of hot water inlets on each floor of a multi-story building. It was made possible to supply it. That is, in the circulating hot water supply equipment of the present invention, the hot water in the hot water storage electric water heater is stored in the open hot water storage tank, and the stored hot water is made to flow to the hot water circulation path by using the pump device. The source can be located above ground, underground or on the lower floors of the building, and it is possible to obtain a low-cost hot water source non-rooftop type circulating hot water supply facility that does not require a boiler handling supervisor.
【００１４】また複数台の貯湯式電気温水器により給湯
源を構成すると、一部の貯湯式電気温水器に故障が生じ
ても、正常な貯湯式電気温水器から湯を供給できるた
め、湯を使用できない状態が発生する率が少なくなり、
信頼性が高くなる。Further, when the hot water supply source is constituted by a plurality of hot water storage type electric water heaters, hot water can be supplied from the normal hot water storage type electric water heater even if some of the hot water storage type electric water heaters fail. The rate that the unusable state occurs decreases,
Higher reliability.
【００１５】[0015]
【実施例】以下、本発明の実施例を図面を参照して詳細
に説明する。図１は本発明の一実施例の循環式給湯設備
を示す概略図である。本図において１は給湯源であり、
２は自動混合弁であり、３は開放型貯湯槽であり、４は
流量調節弁であり、５はポンプ装置であり、６は温水循
環路である。給湯源１は４台の貯湯式電気温水器１ａ〜
１ｄにより構成されている。これらの貯湯式電気温水器
１ａ〜１ｄは、最高使用圧力が１kgf/cm2 以下の貯湯式
電気温水器である。各貯湯式電気温水器１ａ〜１ｄの図
示しない貯湯タンクの給水口には、ストレーナや減圧弁
を介して制圧された水が管路Ｌ１を通して供給されてい
る。そして貯湯式電気温水器１ａ〜１ｄの図示しない貯
湯タンクの給湯口は、給湯管を構成する共通の管路Ｌ２
にそれぞれ接続されて、相互に並列接続されている。Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a schematic view showing a circulating hot water supply system according to an embodiment of the present invention. In the figure, 1 is a hot water supply source,
2 is an automatic mixing valve, 3 is an open type hot water storage tank, 4 is a flow rate control valve, 5 is a pump device, and 6 is a hot water circulation path. The hot water supply source 1 is four hot water storage type electric water heaters 1a-
It is composed of 1d. These hot water storage type electric water heaters 1a to 1d are hot water storage type electric water heaters having a maximum working pressure of 1 kgf / cm 2 or less. Water suppressed by a strainer or a pressure reducing valve is supplied to a water supply port of a hot water storage tank (not shown) of each hot water storage type electric water heater 1a to 1d through a pipe line L1. The hot water supply port of a hot water storage tank (not shown) of the hot water storage type electric water heaters 1a to 1d has a common pipe line L2 that constitutes a hot water supply pipe.
Are connected to each other and are connected in parallel with each other.
【００１６】この貯湯式電気温水器１ａ〜１ｄは、いず
れも地上，地下または多層階の建物の下層階（１階や１
階の屋上等）に配置される。自動混合弁２は、並列接続
された２台の自動混合弁により構成されている。各自動
混合弁には、管路Ｌ２から湯が供給され、管路Ｌ３から
水が供給され、２台の自動混合弁の出口は管路Ｌ４に接
続されている。尚自動混合弁２は、給湯源１から開放型
貯湯槽３に送られる湯が適当な温度になるように湯に給
水源からの水を混合させる公知の弁である。The hot water storage type electric water heaters 1a to 1d are all located on the lower floors (1st floor and 1st floor) of a building above ground, underground or multi-story.
It is placed on the rooftop etc.) The automatic mixing valve 2 is composed of two automatic mixing valves connected in parallel. Hot water is supplied to each automatic mixing valve from the pipe line L2, water is supplied from the pipe line L3, and the outlets of the two automatic mixing valves are connected to the pipe line L4. The automatic mixing valve 2 is a known valve that mixes the water from the water supply source with the hot water so that the hot water sent from the hot water supply source 1 to the open hot water storage tank 3 has an appropriate temperature.
【００１７】開放型貯湯槽３は、自動混合弁２から出た
湯を貯蔵するものである。この開放型貯湯槽３は貯湯式
電気温水器１ａ〜１ｄの近くに配置されている。開放型
貯湯槽３は、槽内の湯がポンプ装置５によって吸い出さ
れても槽内に負圧がかからないようにするために、貯湯
槽３の上部に開放通路を設けて、内部空間を外部の大気
空間と連通させている。本実施例の開放型貯湯槽３は、
ステンレス製のタンクからなり、その側壁の下部には湯
を温水循環路６に送り出す出口３ａと、この出口３ａよ
りも上方の位置に設けられて温水循環路６から戻る湯を
内部に導入する入口３ｂとが設けられている。また開放
型貯湯槽３の内部の下側の空間には、槽内の湯を一定の
温度範囲に保つように通電制御される保温用ヒータ３ｃ
が配置されている。尚図示していないが、貯湯槽３の側
壁には貯湯槽３内の湯の温度を測定する温度センサが取
付けられており、図示しないヒータ制御装置はこの温度
センサの出力に基づいて、保温用ヒータ３ｃへの通電を
制御する。The open type hot water storage tank 3 stores hot water discharged from the automatic mixing valve 2. The open type hot water storage tank 3 is arranged near the hot water storage type electric water heaters 1a to 1d. The open type hot water storage tank 3 is provided with an open passage at the upper part of the hot water storage tank 3 in order to prevent negative pressure from being applied to the hot water tank 3 even if the hot water in the tank is sucked out by the pump device 5. It is in communication with the atmosphere space. The open type hot water storage tank 3 of this embodiment is
It consists of a tank made of stainless steel, an outlet 3a for sending hot water to the hot water circulation path 6 at the lower part of its side wall, and an inlet provided above the exit 3a for introducing hot water returning from the hot water circulation path 6 into the inside. 3b are provided. In the lower space inside the open type hot water storage tank 3, a heat retention heater 3c is energized to keep the hot water in the tank within a certain temperature range.
Are arranged. Although not shown, a temperature sensor for measuring the temperature of the hot water in the hot water storage tank 3 is attached to the side wall of the hot water storage tank 3, and the heater control device (not shown) uses the temperature sensor to keep the temperature warm. The energization of the heater 3c is controlled.
【００１８】また貯湯槽３の側壁には高さ方向に間隔を
開けて液面検出用の２つの液面センサＳ１及びＳ２が取
付けられている。これらの液面センサＳ１及びＳ２は、
貯湯槽内に電極を突出させて電流値やインピーダンス等
の変化により液面の有無を検出する液面検出装置を構成
している。液面センサＳ１は、湯の液面の上限レベルを
検出し、液面センサＳ２は湯の液面の下限レベルを検出
する。これらの液面センサＳ１及びＳ２の出力で、管路
Ｌ４に設けた流量調節弁４が制御される。流量調節弁４
は、開放型貯湯槽３内の液面を所定量に保つように制御
される。具体的には、液面が下限レベルＬより少なくな
ったことを液面センサＳ２が検出すると流量調節弁４が
開かれ、液面が上限レベルＨに達したことを液面センサ
Ｓ１が検出すると流量調節弁４が閉じられる。On the side wall of the hot water storage tank 3, two liquid level sensors S1 and S2 for detecting the liquid level are attached at intervals in the height direction. These liquid level sensors S1 and S2 are
The liquid level detecting device is configured to project the electrode into the hot water storage tank and detect the presence or absence of the liquid level by a change in current value, impedance or the like. The liquid level sensor S1 detects the upper limit level of the liquid level of the hot water, and the liquid level sensor S2 detects the lower limit level of the liquid level of the hot water. The outputs of these liquid level sensors S1 and S2 control the flow rate control valve 4 provided in the conduit L4. Flow control valve 4
Is controlled so that the liquid level in the open hot water storage tank 3 is maintained at a predetermined amount. Specifically, when the liquid level sensor S2 detects that the liquid level has become lower than the lower limit level L, the flow rate control valve 4 is opened, and when the liquid level sensor S1 detects that the liquid level has reached the upper limit level H. The flow rate control valve 4 is closed.
【００１９】ポンプ装置５は、矢印に示す方向に開放型
貯湯槽３内の湯を開放型貯湯槽３の出口３ａから入口３
ｂに循環させる位置に配置されている。即ち本実施例で
は、ポンプ装置５及び開放型貯湯槽３が温水循環路６の
一部を構成するように配置されている。ポンプ装置５
は、並列接続された主ポンプ５ａと補助ポンプ５ｂとを
備えている。各ポンプ５ａ、５ｂの両側にはポンプの交
換や点検の際に閉められるバルブＶ１〜Ｖ４が配置され
ており、また管路Ｌ５と間にはポンプ側への逆流を防止
するために逆止弁ＲＶ１及ＲＶ２が取付けられている。
補助ポンプ５ｂは、主ポンプ５ａが故障した場合や、主
ポンプ５ａの点検時に駆動されるものである。本実施例
では、補助ポンプ５ｂとして主ポンプ５ａより循環圧力
の小さい小形で安価なポンプを用いている。ポンプ装置
５は、常時は主ポンプ５ａを作動させており、主ポンプ
５ａが故障した際には、自動的に補助ポンプ５ｂを作動
させるように、図示しない制御装置によって制御されて
いる。The pump device 5 is arranged so that the hot water in the open type hot water storage tank 3 is passed from the outlet 3a of the open type hot water storage tank 3 to the inlet 3 in the direction shown by the arrow.
It is arranged at a position to circulate in b. That is, in this embodiment, the pump device 5 and the open hot water storage tank 3 are arranged so as to form a part of the hot water circulation path 6. Pump device 5
Includes a main pump 5a and an auxiliary pump 5b connected in parallel. Valves V1 to V4 that are closed at the time of pump replacement or inspection are arranged on both sides of each pump 5a and 5b, and a check valve is provided between the pumps 5a and 5b to prevent backflow to the pump side between the line L5. RV1 and RV2 are attached.
The auxiliary pump 5b is driven when the main pump 5a fails or when the main pump 5a is inspected. In the present embodiment, as the auxiliary pump 5b, a small and inexpensive pump having a circulating pressure smaller than that of the main pump 5a is used. The pump device 5 normally operates the main pump 5a, and is controlled by a control device (not shown) so as to automatically operate the auxiliary pump 5b when the main pump 5a fails.
【００２０】温水循環路６は、多層階（本実施例では５
階）の建物の複数の給湯口（蛇口）６ａ…に湯を供給す
るように管路Ｌ６〜Ｌ８からなる分配路を備えており、
各管路Ｌ６〜Ｌ８は建物の最も上の位置で管路Ｌ９に結
合されている。管路Ｌ９は、開放型貯湯槽３の入口３ｂ
に接続されている。The hot water circulation path 6 has a multi-story floor (5 in this embodiment).
A distribution path including pipelines L6 to L8 is provided so as to supply hot water to a plurality of hot water supply ports (faucets) 6a of the building on the first floor.
Each of the pipelines L6 to L8 is connected to the pipeline L9 at the uppermost position of the building. The pipe line L9 is an inlet 3b of the open type hot water storage tank 3.
It is connected to the.
【００２１】本実施例の循環式給湯設備ではポンプ装置
５を常時作動させて、温水循環路６内の湯の温度を保温
用ヒータ３ｃにより一定の温度範囲に保っている。そし
て蛇口６ａから湯が放出されて開放型貯湯槽３内の液面
が低下し、開放型貯湯槽３の下限レベルＬを下回ると、
流量調節弁４が開いて貯湯式電気温水器１ｄから開放型
貯湯槽３に湯が供給される。In the circulating hot water supply system of this embodiment, the pump device 5 is constantly operated so that the temperature of the hot water in the hot water circulation passage 6 is kept within a constant temperature range by the heater 3c. Then, when the hot water is discharged from the faucet 6a and the liquid level in the open hot water storage tank 3 decreases, and falls below the lower limit level L of the open hot water storage tank 3,
The flow rate control valve 4 is opened to supply hot water from the hot water storage type electric water heater 1d to the open hot water storage tank 3.
【００２２】図２は本発明の他の実施例の循環式給湯設
備を示す概略図である。本実施例において、図１の実施
例と同様の部材には、図１に示した符号に１０を加えた
数の符号を付して説明を省略する。図１の実施例では、
ポンプ装置及び開放型貯湯槽が温水循環路の一部を構成
しているが、本実施例の循環式給湯設備では、温水循環
路１６が完全に独立している。そのため本実施例では、
温水循環路１６を閉ループ状に構成し、ポンプ装置１５
を用いて開放型貯湯槽１３内の湯を温水循環路１６に流
している。そして温水循環路１６の上部には温水循環路
１６内に湯を循環させる循環ポンプ１６ｂと温水循環路
１６内の湯を一定の温度範囲に保つ昇温器１６ｃが設け
られている。FIG. 2 is a schematic view showing a circulating hot water supply system according to another embodiment of the present invention. In the present embodiment, the same members as those in the embodiment of FIG. 1 are designated by the reference numerals shown in FIG. In the example of FIG.
The pump device and the open type hot water storage tank constitute a part of the hot water circulation passage, but in the circulation type hot water supply equipment of the present embodiment, the hot water circulation passage 16 is completely independent. Therefore, in this embodiment,
The warm water circulation passage 16 is configured in a closed loop shape, and the pump device 15
The hot water in the open type hot water storage tank 13 is caused to flow to the hot water circulation path 16 by using. A circulation pump 16b for circulating hot water in the hot water circulation passage 16 and a temperature raising device 16c for keeping the hot water in the hot water circulation passage 16 within a constant temperature range are provided above the hot water circulation passage 16.
【００２３】本実施例でも、最高使用圧力が１ｋｇｆ／
ｃｍ2 以下の貯湯式電気温水器１１ａ，１１ｂからなる
給湯源１１を地上に配置して、給湯源１１とポンプ装置
１５との間に開放型貯湯槽１３を設けている。そして本
実施例では、開放型貯湯槽１３内の液面を検出する液面
検出装置を構成する液面センサＳ１及びＳ２を、開放型
貯湯槽１３内に配置している。このようにすると、液面
の検出精度が高くなる。ポンプ装置１５は、開放型貯湯
槽１３と温水循環路１６とを接続する管路Ｌ１４の途中
に設けられている。図１の実施例では、ポンプ装置５
が、温水循環路の循環ポンプの機能も果たしているた
め、ポンプ装置５は常時運転状態あるが、本実施例で
は、湯が必要な場合にだけ、ポンプ装置１５を作動させ
る。そこでポンプ装置１５を作動させるか否かを判定す
る機能を備えたポンプ運転制御装置１７が設けられてい
る。ポンプ運転制御装置１７は、湯が使用されて温水循
環路１６内の圧力が下がったことを、管路Ｌ１４に設け
た圧力計で検出し、圧力の低下を検出するとポンプ装置
１５を作動させるように構成されている。図には、ポン
プ装置１５を１台のポンプの記号で示してあるが、実際
には図１の実施例と同様に、主ポンプと補助ポンプの２
台のポンプでポンプ装置１５は構成されている。Also in this embodiment, the maximum working pressure is 1 kgf /
A hot water supply source 11 composed of hot water storage type electric water heaters 11a and 11b of cm 2 or less is arranged on the ground, and an open hot water storage tank 13 is provided between the hot water supply source 11 and the pump device 15. In this embodiment, the liquid level sensors S1 and S2, which form a liquid level detection device for detecting the liquid level in the open hot water storage tank 13, are arranged in the open hot water storage tank 13. By doing so, the detection accuracy of the liquid surface becomes high. The pump device 15 is provided in the middle of a pipe line L14 connecting the open hot water storage tank 13 and the hot water circulation path 16. In the embodiment of FIG. 1, the pump device 5
However, since it also functions as a circulation pump of the hot water circulation path, the pump device 5 is always in the operating state. However, in the present embodiment, the pump device 15 is operated only when hot water is required. Therefore, a pump operation control device 17 having a function of determining whether to operate the pump device 15 is provided. The pump operation control device 17 detects that the pressure in the hot water circulation passage 16 has dropped due to the use of hot water, by the pressure gauge provided in the pipe line L14, and activates the pump device 15 when a decrease in pressure is detected. Is configured. In the drawing, the pump device 15 is shown by the symbol of one pump, but actually, as in the embodiment of FIG.
The pump device 15 is composed of a single pump.
【００２４】この実施例の循環式給湯設備では循環ポン
プ１６ｂを常時に作動させて、矢印に示す方向に温水循
環路１６内に湯を循環させている。そして湯が使用され
ない場合に、温水循環路１６内の湯の温度が低下するの
を昇温器１６ｃにより防いでいる。尚開放型貯湯槽１３
内の湯の温度が低下するのを防止するために、図１の実
施例と同様に開放型貯湯槽１３内に保温用ヒータを配置
してもよいのは勿論である。給湯口としての蛇口１６ａ
から湯が放出されると、ポンプ運転制御装置１７が圧力
の低下を検出してポンプ装置１５が作動し、開放型貯湯
槽１３内の湯が温水循環路１６内に供給される。In the circulation type hot water supply equipment of this embodiment, the circulation pump 16b is constantly operated to circulate the hot water in the hot water circulation passage 16 in the direction shown by the arrow. When the hot water is not used, the temperature riser 16c prevents the temperature of the hot water in the hot water circulation passage 16 from decreasing. Open-type hot water storage tank 13
Of course, in order to prevent the temperature of the hot water in the inside from lowering, a warming heater may be arranged in the open type hot water storage tank 13 as in the embodiment of FIG. Faucet 16a as a hot water supply port
When hot water is discharged from the hot water, the pump operation control device 17 detects the decrease in pressure and the pump device 15 operates, and the hot water in the open hot water storage tank 13 is supplied into the hot water circulation passage 16.
【００２５】［実施態様１］多層階の建物の各階の複数
の給湯口に湯を供給するように配設された温水循環路
と、地上，地下または建物の下層階に配置された給湯源
と、前記給湯源で沸かした湯を前記温水循環路に流すポ
ンプ装置とを備えてなる循環式給湯設備において、前記
給湯源として複数台の貯湯式電気温水器を用い、前記貯
湯式電気温水器と前記ポンプ装置との間に開放型貯湯槽
を設けたことを特徴とする循環式給湯設備。[Embodiment 1] A hot water circulation path arranged to supply hot water to a plurality of hot water supply ports on each floor of a multi-story building, and a hot water supply source arranged on the ground, underground or lower floors of the building. In a circulating hot water supply facility comprising a pump device for flowing hot water boiled in the hot water supply source into the hot water circulation path, a plurality of hot water storage electric water heaters are used as the hot water supply source, and the hot water storage electric water heater is used. A circulating hot water supply facility, wherein an open type hot water storage tank is provided between the pump device and the pump device.
【００２６】本実施態様の目的は、一般家庭でも使用さ
れている簡易型の貯湯式電気温水器を用いた給湯源非屋
上設置タイプの循環式給湯設備を提供することにある。An object of the present embodiment is to provide a non-rooftop-installed circulating hot water supply facility using a simple hot water storage type electric water heater which is also used in ordinary households.
【００２７】［実施態様２］前記複数台の貯湯式電気温
水器は、前記開放型貯湯槽に接続された共通の給湯管に
給湯口が接続されている実施態様１に記載の循環式給湯
設備。[Embodiment 2] In the plurality of hot water storage type electric water heaters, the circulating hot water supply equipment according to the first embodiment, wherein a hot water supply port is connected to a common hot water supply pipe connected to the open hot water storage tank. .
【００２８】［実施態様３］前記開放型貯湯槽には貯湯
液面を検出する液面検出装置を設け、前記貯湯式電気温
水器と前記開放型貯湯槽との間に前記液面検出装置の出
力に基づいて前記開放型貯湯槽内に液面を所定量に保つ
ように駆動制御される流量調節弁を設けた実施態様１ま
たは２に記載の循環式給湯設備。[Embodiment 3] The open type hot water storage tank is provided with a liquid level detection device for detecting the liquid level of the hot water storage, and the liquid level detection device is provided between the hot water storage type electric water heater and the open hot water storage tank. The circulating hot water supply equipment according to the first or second embodiment, wherein a flow rate control valve is provided in the open type hot water storage tank, the flow rate control valve being driven and controlled so as to keep the liquid level at a predetermined amount based on the output.
【００２９】本実施態様の目的は、開放型貯湯槽内の湯
が溢れたり、枯れたりすることがない循環式給湯設備を
提供することにある。An object of the present embodiment is to provide a circulating hot water supply facility in which the hot water in the open hot water storage tank does not overflow or die.
【００３０】［実施態様４］多層階の建物の各階に設け
られた複数の給湯口に湯を供給するように配設された温
水循環路と、地上，地下または建物の下層階に配置され
た給湯源と、前記給湯源で沸かした湯を前記温水循環路
に流すポンプ装置とを備えてなる循環式給湯設備におい
て、前記給湯源は最高使用圧力が１ｋｇｆ／ｃｍ2 以下
の複数台の貯湯式電気温水器から構成され、前記複数台
の貯湯式電気温水器と前記ポンプ装置との間に開放型貯
湯槽が設けられていることを特徴とする循環式給湯設
備。[Embodiment 4] A hot water circulation passage arranged to supply hot water to a plurality of hot water inlets provided on each floor of a multi-story building, and a ground floor, an underground floor, or a lower floor of the building. In a circulating hot water supply facility comprising a hot water supply source and a pump device for flowing hot water boiled in the hot water supply source to the hot water circulation path, the hot water supply source has a plurality of hot water storage types having a maximum working pressure of 1 kgf / cm 2 or less. A circulating hot water supply facility comprising an electric water heater, wherein an open hot water storage tank is provided between the plurality of hot water storage electric water heaters and the pump device.
【００３１】本実施態様の目的は、一般家庭でも使用さ
れている簡易型の貯湯式電気温水器を用いた給湯源非屋
上設置タイプの循環式給湯設備を提供することにある。An object of the present embodiment is to provide a circulating hot water supply system of a non-top water supply type rooftop installation type using a simple hot water storage type electric water heater which is also used in ordinary households.
【００３２】［実施態様５］前記ポンプ装置は並列接続
された主ポンプと補助ポンプとを備えており、前記補助
ポンプは前記主ポンプよりも小形である実施態様４に記
載の循環式給湯設備。[Embodiment 5] The circulating hot water supply equipment according to embodiment 4, wherein the pump device comprises a main pump and an auxiliary pump connected in parallel, and the auxiliary pump is smaller than the main pump.
【００３３】本実施態様の目的は、ポンプ装置の価格を
安くできる給湯源非屋上設置タイプの循環式給湯設備を
提供することにある。An object of the present embodiment is to provide a circulating hot water supply system of a non-rooftop water supply type which can reduce the price of the pump device.
【００３４】［実施態様６］多層階の建物の各階に設け
られた複数の給湯口に湯を供給するように配設された温
水循環路と、地上，地下または建物の下層階に配置され
た給湯源と、前記給湯源で沸かした湯を前記温水循環路
に流すポンプ装置とを備えてなる循環式給湯設備におい
て、前記給湯源は最高使用圧力が１ｋｇｆ／ｃｍ2 以下
の複数台の貯湯式電気温水器から構成され、前記複数台
の貯湯式電気温水器と前記ポンプ装置との間に開放型貯
湯槽が設けられ、前記ポンプ装置は前記開放形貯湯槽と
前記温水循環路との間に配置され、前記温水循環路の途
中に該温水循環路中で湯を循環させる循環用ポンプと該
温水循環路中の湯を加熱する昇温器とが設けられ、前記
開放型貯湯槽には貯湯液面を検出する液面検出装置が設
けられ、前記給湯源と前記開放型貯湯槽との間に前記液
面検出装置の出力に基づいて前記開放型貯湯槽内の液面
を所定量に保つように駆動制御される流量調節弁が設け
られていることを特徴とする循環式給湯設備。[Embodiment 6] A hot water circulation passage arranged to supply hot water to a plurality of hot water inlets provided on each floor of a multi-story building, and a ground floor, an underground floor, or a lower floor of the building. In a circulating hot water supply facility comprising a hot water supply source and a pump device for flowing hot water boiled in the hot water supply source to the hot water circulation path, the hot water supply source has a plurality of hot water storage types having a maximum working pressure of 1 kgf / cm 2 or less. An electric water heater is provided, and an open hot water storage tank is provided between the plurality of hot water storage electric water heaters and the pump device, and the pump device is provided between the open hot water storage tank and the hot water circulation path. A circulation pump that circulates hot water in the hot water circulation passage and a temperature raising device that heats the hot water in the hot water circulation passage are provided in the middle of the hot water circulation passage, and the open-type hot water storage tank stores hot water. A liquid level detection device for detecting the liquid level is provided, And a flow rate control valve that is drive-controlled so as to keep the liquid level in the open type hot water storage tank at a predetermined amount based on the output of the liquid level detecting device. Characteristic circulation type hot water supply equipment.
【００３５】本実施態様の目的は、湯温の低下を防止で
きる給湯源非屋上設置タイプの循環式給湯設備を提供す
ることにある。An object of the present embodiment is to provide a circulating hot water supply system of a non-rooftop installation type that can prevent a decrease in hot water temperature.
【００３６】［実施態様７］前記開放形貯湯槽の内部に
保温用ヒータが配置されていることを特徴とする実施態
様６に記載の循環式給湯設備。[Embodiment 7] The circulating hot water supply equipment according to Embodiment 6 is characterized in that a heater for heat retention is arranged inside the open hot water storage tank.
【００３７】［実施態様８］多層階の建物の各階に設け
られた複数の給湯口に湯を供給するように配設された温
水循環路と、地上，地下または建物の下層階に配置され
た給湯源と、前記給湯源で沸かした湯を前記温水循環路
に流すポンプ装置とを備えてなる循環式給湯設備におい
て、前記給湯源は最高使用圧力が１ｋｇｆ／ｃｍ2 以下
の複数台の貯湯式電気温水器から構成され、前記複数台
の貯湯式電気温水器と前記ポンプ装置との間に開放型貯
湯槽が設けられ、前記開放形貯湯槽及び前記ポンプ装置
は前記温水循環路の一部を構成するように配置され、前
記開放形貯湯槽の内部には保温用ヒータが配置され、前
記開放型貯湯槽には貯湯液面を検出する液面検出装置が
設けられ、前記給湯源と前記開放型貯湯槽との間に前記
液面検出装置の出力に基づいて前記開放型貯湯槽内の液
面を所定量に保つように駆動制御される流量調節弁が設
けられていることを特徴とする循環式給湯設備。[Embodiment 8] A hot water circulation passage arranged so as to supply hot water to a plurality of hot water inlets provided on each floor of a multi-story building, and arranged on the ground, underground or lower floors of the building. In a circulating hot water supply facility comprising a hot water supply source and a pump device for flowing hot water boiled in the hot water supply source to the hot water circulation path, the hot water supply source has a plurality of hot water storage types having a maximum working pressure of 1 kgf / cm 2 or less. An electric water heater is provided, and an open hot water storage tank is provided between the plurality of hot water storage electric water heaters and the pump device, and the open hot water storage tank and the pump device form part of the hot water circulation path. The open type hot water storage tank is provided with a heat retention heater, and the open type hot water storage tank is provided with a liquid level detection device for detecting a hot water storage liquid level. Of the liquid level detection device between the Circulating hot water supply equipment, characterized in that the drive controlled by the flow control valve is provided so as to maintain the liquid level of the open hot water storage tank in a predetermined amount based on.
【００３８】[0038]
【発明の効果】本発明によれば、貯湯式電気温水器とポ
ンプ装置との間に開放型貯湯槽を設けたので、貯湯式電
気温水器内の湯を多層階の建物の複数の給湯口にポンプ
装置を用いて供給することができる。そのため、本発明
によれば貯湯式電気温水器からなる給湯源を地上，地下
または建物の下層階に配置でき、ボイラー取扱主任者を
必要としない低価格な給湯源非屋上設置タイプの循環式
給湯設備を得ることができる。According to the present invention, since the open type hot water storage tank is provided between the hot water storage type electric water heater and the pump device, the hot water in the hot water storage type electric water heater is provided at a plurality of hot water supply ports of the multi-story building. Can be supplied using a pump device. Therefore, according to the present invention, a hot water supply source comprising a hot water storage type electric water heater can be arranged on the ground, underground or lower floors of a building, and a low-priced hot water supply non-rooftop type circulating hot water supply that does not require a boiler handling chief You can get the equipment.
【図１】 本発明の一実施例の循環式給湯設備を示す概
略図である。FIG. 1 is a schematic view showing a circulating hot water supply facility according to an embodiment of the present invention.
【図２】 本発明の他の実施例の循環式給湯設備を示す
概略図である。FIG. 2 is a schematic view showing a circulating hot water supply facility according to another embodiment of the present invention.
【図３】 従来の循環式給湯設備を示す概略図である。FIG. 3 is a schematic view showing a conventional circulating hot water supply facility.
１，１１，１０１ 給湯源 ３，１３ 開放型貯湯槽 ４，１４ 流量調節弁 ５，１５，１０２ ポンプ装置 ５ａ 主ポンプ ５ｂ 補助ポンプ ６，１６，１０３ 温水循環路 ６ａ，１６ａ，１０３ａ 給湯口（蛇口） 1,11,101 Hot water supply source 3,13 Open type hot water storage tank 4,14 Flow rate control valve 5,15,102 Pump device 5a Main pump 5b Auxiliary pump 6,16,103 Hot water circulation path 6a, 16a, 103a Hot water inlet (faucet )
Claims (1)
るように配設された温水循環路と、地上，地下または建
物の下層階に配置された給湯源と、前記給湯源で沸かし
た湯を前記温水循環路に流すポンプ装置とを備えてなる
循環式給湯設備において、 前記給湯源として貯湯式電気温水器を用い、 前記貯湯式電気温水器と前記ポンプ装置との間に開放型
貯湯槽を設けたことを特徴とする循環式給湯設備。1. A hot water circuit arranged to supply hot water to a plurality of hot water supply ports of a multi-story building, a hot water supply source arranged on the ground, underground or lower floors of the building, and the hot water supply source. In a circulating hot water supply equipment comprising a pump device for flowing boiled hot water to the hot water circulation path, a hot water storage electric water heater is used as the hot water supply source, and the hot water storage electric water heater and the pump device are opened. Circulating hot water supply facility, which has a type hot water storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3001394A JPH07239152A (en) | 1994-02-28 | 1994-02-28 | Circulation type water heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3001394A JPH07239152A (en) | 1994-02-28 | 1994-02-28 | Circulation type water heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07239152A true JPH07239152A (en) | 1995-09-12 |
Family
ID=12291985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3001394A Pending JPH07239152A (en) | 1994-02-28 | 1994-02-28 | Circulation type water heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07239152A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008082688A (en) * | 2006-08-31 | 2008-04-10 | Osaka Gas Co Ltd | Heat storing and radiating device and heat supply system |
| JP2009036489A (en) * | 2007-08-03 | 2009-02-19 | Toshiba Carrier Corp | Water heater |
| JP2009036488A (en) * | 2007-08-03 | 2009-02-19 | Toshiba Carrier Corp | Water heater |
| JP2009270735A (en) * | 2008-04-30 | 2009-11-19 | Toshiba Carrier Corp | Hot water supply device |
| JP2016164483A (en) * | 2015-02-27 | 2016-09-08 | 矢崎エナジーシステム株式会社 | Solar heat utilization hot water supply system |
-
1994
- 1994-02-28 JP JP3001394A patent/JPH07239152A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008082688A (en) * | 2006-08-31 | 2008-04-10 | Osaka Gas Co Ltd | Heat storing and radiating device and heat supply system |
| JP2009036489A (en) * | 2007-08-03 | 2009-02-19 | Toshiba Carrier Corp | Water heater |
| JP2009036488A (en) * | 2007-08-03 | 2009-02-19 | Toshiba Carrier Corp | Water heater |
| JP2009270735A (en) * | 2008-04-30 | 2009-11-19 | Toshiba Carrier Corp | Hot water supply device |
| JP2016164483A (en) * | 2015-02-27 | 2016-09-08 | 矢崎エナジーシステム株式会社 | Solar heat utilization hot water supply system |
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