JP6254487B2 - Hot water storage water heater - Google Patents

Hot water storage water heater Download PDF

Info

Publication number
JP6254487B2
JP6254487B2 JP2014122229A JP2014122229A JP6254487B2 JP 6254487 B2 JP6254487 B2 JP 6254487B2 JP 2014122229 A JP2014122229 A JP 2014122229A JP 2014122229 A JP2014122229 A JP 2014122229A JP 6254487 B2 JP6254487 B2 JP 6254487B2
Authority
JP
Japan
Prior art keywords
hot water
pipe
storage tank
water storage
water supply
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.)
Active
Application number
JP2014122229A
Other languages
Japanese (ja)
Other versions
JP2016003771A (en
Inventor
誠 森田
誠 森田
義彦 長澤
義彦 長澤
正貴 竹原
正貴 竹原
広川 克仁
克仁 広川
本間 誠
誠 本間
Original Assignee
株式会社コロナ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社コロナ filed Critical 株式会社コロナ
Priority to JP2014122229A priority Critical patent/JP6254487B2/en
Publication of JP2016003771A publication Critical patent/JP2016003771A/en
Application granted granted Critical
Publication of JP6254487B2 publication Critical patent/JP6254487B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

この発明は、不凍水抜き栓を介して設置される貯湯式給湯装置に関するものである。   The present invention relates to a hot water storage type hot water supply apparatus installed via an antifreeze water drain plug.
従来よりこの種の貯湯式給湯装置に於いては、図3に示すように、湯水を貯湯する貯湯タンク101と、貯湯タンク101の湯水を加熱する加熱手段102と、この貯湯タンク101下部に給水する給水管103と、貯湯タンク101上部から出湯する上部出湯管104と、貯湯タンク101中間部から出湯する中間出湯管105と、上部出湯管104と中間出湯管105の何れか一方を選択する三方弁106と、この三方弁106の出湯側に接続された給湯管107と、貯湯タンク101内が所定の負圧状態となると空気を吸引する負圧吸気弁108とを備え、貯湯タンク101の中間部に湯がある場合は、中間出湯管105から全部または一部を出湯しようとするものがあった(特許文献1参照)。   Conventionally, in this type of hot water storage type hot water supply apparatus, as shown in FIG. 3, a hot water storage tank 101 for storing hot water, heating means 102 for heating the hot water in the hot water storage tank 101, and water supply to the lower part of the hot water storage tank 101 are provided. A water supply pipe 103 to be discharged, an upper hot water discharge pipe 104 to be discharged from the upper part of the hot water storage tank 101, an intermediate hot water discharge pipe 105 to be discharged from an intermediate part of the hot water storage tank 101, and an upper hot water discharge pipe 104 and an intermediate hot water discharge pipe 105 A valve 106, a hot water supply pipe 107 connected to the hot water outlet side of the three-way valve 106, and a negative pressure intake valve 108 that sucks air when the hot water storage tank 101 is in a predetermined negative pressure state. When there is hot water in the part, there is one that tries to pour all or part of the hot water from the intermediate tapping pipe 105 (see Patent Document 1).
また、寒冷地においては、地表近くあるいは家屋内の給水管103および給湯管107の凍結を防止するために、給水管103および給湯管107内の湯水を排水するための不凍水抜き栓109を介して貯湯式給湯装置を設置する場合がある。なお、不凍水抜き栓109は地域ごとに定められている凍結深度以下に埋設され、手動あるいは電動で排水状態、給水状態に切り換えられるもので、特許文献2や特許文献3に示されるようなものが知られている。   In cold regions, an antifreeze drain plug 109 for draining hot water in the water supply pipe 103 and the hot water supply pipe 107 is provided in order to prevent freezing of the water supply pipe 103 and the hot water supply pipe 107 near the ground surface or in the house. In some cases, a hot water storage type hot water supply apparatus is installed. The antifreezing water drain plug 109 is buried below the freezing depth determined for each region, and can be manually or electrically switched to a drained state or a water supply state, as shown in Patent Document 2 and Patent Document 3. Things are known.
特開2003−240342号公報JP 2003-240342 A 実開昭60−175963号公報Japanese Utility Model Publication No. 60-175963 特開2001−4056号公報JP 2001-4056 A
ところが、このような貯湯式給湯装置に於いて、三方弁106が中間出湯管105側に連通している状態で、不凍水抜き栓109を排水状態として給水管103および給湯管107の湯水を抜くと、もしくは、不凍水抜き栓109が排水状態のときに三方弁106が中間出湯管105側を連通する状態となると、給湯管107からの排水に伴ってサイフォン現象によって貯湯タンク101の中間部から上部の湯が中間出湯管105から吸い出されると共に負圧吸気弁108から空気が導入され、中間出湯管105の接続位置まで水位が低下するまで貯湯タンク101内の湯が排水されてしまうという問題があった。   However, in such a hot water storage type hot water supply apparatus, with the three-way valve 106 communicating with the intermediate hot water discharge pipe 105 side, the hot water from the water supply pipe 103 and the hot water supply pipe 107 is discharged with the antifreeze drain plug 109 drained. If the three-way valve 106 communicates with the intermediate hot water pipe 105 side when the antifreeze water drain plug 109 is in a drained state, the middle of the hot water storage tank 101 is drained from the hot water supply pipe 107 by siphon phenomenon. The hot water in the upper part is sucked out from the intermediate hot water discharge pipe 105 and air is introduced from the negative pressure intake valve 108, and the hot water in the hot water storage tank 101 is drained until the water level drops to the connection position of the intermediate hot water discharge pipe 105. There was a problem.
この発明は上記課題を解決する為に、特にその構成を、湯水を貯湯する貯湯タンクと、この貯湯タンクの湯水を加熱する加熱手段と、前記貯湯タンク下部に給水する給水管と、前記貯湯タンク上部から出湯する上部出湯管と、前記貯湯タンク中間部から出湯する中間出湯管と、前記上部出湯管と前記中間出湯管の何れか一方を選択する切換手段と、この切換手段の出湯側に接続された給湯管と、前記給水管及び給湯管に接続し開成されることで前記給水管及び給湯管内の残水を排水して凍結を防止する不凍水抜き栓と、外気温度を検出する外気温センサと、各種の設定や駆動指示を出力するリモコンと、前記給湯管から分岐し浴槽へ連通する湯張り管と、この湯張り管途中に設けられた電磁開閉弁と、前記リモコンの出力を受けて前記加熱手段や切換手段を制御する制御部とを備えたものに於いて、前記制御部は前記外気温センサが所定温度以下を検知すると前記切換手段を、前記上部出湯管側を連通し、前記中間出湯管側を閉塞するように切換るものであり、前記外気温センサが所定温度以下を検知して、前記切換手段が、前記上部出湯管側が連通され、前記中間出湯管側が閉塞された状態にて、前記リモコンのスイッチの押圧によって前記電磁開閉弁を開成する風呂動作の指示がされることで、前記切換手段を前記上部出湯管側を閉塞し、前記中間出湯管側と連通する状態に切換るものである。 To the invention solve the above problems, in particular its configuration, the hot water storage tank for hot water storage hot water, a heating means for heating the hot water of the hot water storage tank, a water supply pipe for supplying water to the hot water storage tank bottom, the hot water storage tank An upper tapping pipe that pours out hot water, an intermediate tapping pipe that pours out hot water from the intermediate portion of the hot water storage tank, switching means for selecting one of the upper tapping pipe and the intermediate tapping pipe, and a tapping side of the switching means a hot water supply pipe that is, the antifreeze vent plug to prevent freezing and draining residual water in the water supply pipe and the hot water supply pipe by being opened to connect to the water supply pipe and hot water supply pipe, the outer for detecting the outside air temperature An air temperature sensor, a remote controller that outputs various settings and driving instructions, a hot water pipe that branches from the hot water pipe and communicates with the bathtub, an electromagnetic on-off valve provided in the middle of the hot water pipe, and an output of the remote controller said heating hand received by In that and a control unit for controlling and switching換手stage, the control unit of the switching means and the ambient temperature sensor detects a predetermined temperature or lower, communicates the upper tapping pipe side, the intermediate tapping The outside air temperature sensor detects a temperature equal to or lower than a predetermined temperature, and the switching means is connected to the upper outlet water pipe side and the intermediate outlet water pipe side is closed. by indication of bath operation for opening the solenoid valve by pressing the switch of the remote control is, the switching means and closing the upper tapping pipe side, the intermediate tapping pipe side and switching to a state that communicates Is.
以上のようにこの発明によれば、外気温度が凍結の危険温度に低下することで、不凍水抜き栓が何時操作されて水抜き状態となっても、貯湯タンクの中間部と中間出湯管側の連通は閉塞されていてサイフォン現象は発生せず、貯湯タンク内の貯湯水の排水は未然に阻止されるものであるが、しかし不凍水抜き栓が操作されないままこの状態が継続されると、適温に近く貯湯タンク内の中温水を多く使用する風呂関係の運転が指示された場合、中温水が使用できずに効率が悪くなるため、リモコンの足し湯スイッチや高温差し湯スイッチが押圧を受けて電磁開閉弁を開成する風呂動作の指示がされると、切換手段を上部出湯管側を閉塞し、中間出湯管側と連通する元の状態に切換るようにしたことにより、足し湯や高温差し湯の電磁開閉弁を開成する風呂動作では従来通り中温水を使用でき無駄に高温水を使用することなく効率の向上を図ることができ、水資源の無駄及びエネルギーの無駄を省きながら効率の良い給湯風呂を得ることができるものである。 As described above, according to the present invention, the intermediate temperature of the hot water storage tank and the intermediate hot water pipe are no matter what time the non-freezing water drain plug is operated due to the outside air temperature falling to the freezing risk temperature. The communication on the side is blocked and siphon phenomenon does not occur, and the drainage of the hot water in the hot water storage tank is obstructed in advance, but this state continues without operating the antifreeze water drain plug When a bath-related operation that uses a lot of medium temperature water in the hot water storage tank is instructed near the optimum temperature, the medium temperature water cannot be used and the efficiency deteriorates, so the additional hot water switch or hot water hot water switch on the remote control is pressed. In response to the instruction of the bath operation to open the electromagnetic on-off valve , the switching means is closed on the upper tapping pipe side and switched to the original state communicating with the intermediate tapping pipe side. the electromagnetic on-off valve open and high-temperature hot water feed Wasting hot water available in the hot water in the bath operating conventional as improved efficiency can be achieved without the use, it is possible to get a good hot water bath efficiency while eliminating waste of the waste and energy of water resources for Is.
本発明の一実施形態の概略構成図。The schematic block diagram of one Embodiment of this invention. 同一実施形態の作動を説明するためのフローチャート。The flowchart for demonstrating the action | operation of the same embodiment. 従来の貯湯式給湯装置の概略構成図。The schematic block diagram of the conventional hot water storage type hot-water supply apparatus.
次にこの発明の一実施形態の貯湯式給湯装置について図面に基づいて説明する。
1は湯水を貯湯する貯湯タンク、2は貯湯タンク1底部に接続された給水管、3は貯湯タンク1頂部に接続された上部出湯管、4は貯湯タンク1中間部に接続された中間出湯管、5は上部出湯管3からの湯と中間出湯管4からの湯の何れか一方から出湯するよう切り換える切換手段としての三方弁、6は給水管2から分岐した給水バイパス管、7は三方弁5からの湯と給水バイパス管6からの水とを混合し、その混合比を可変できる混合弁、8は混合弁7で混合された湯を給湯端末(図示せず)に給湯するための給湯管、9は貯湯タンク1の下部と上部を湯水が循環可能に接続した循環回路、10は循環回路9途中に設けられ、その回転数を可変できる循環ポンプである。
Next, a hot water storage type hot water supply apparatus according to an embodiment of the present invention will be described with reference to the drawings.
1 is a hot water storage tank for storing hot water, 2 is a water supply pipe connected to the bottom of the hot water storage tank 1, 3 is an upper hot water discharge pipe connected to the top of the hot water storage tank 1, and 4 is an intermediate hot water discharge pipe connected to the intermediate part of the hot water storage tank 1. Reference numeral 5 denotes a three-way valve as a switching means for switching hot water from the upper hot water discharge pipe 3 and hot water from the intermediate hot water discharge pipe 4, 6 is a water supply bypass pipe branched from the water supply pipe 2, and 7 is a three-way valve. 5 is a mixing valve capable of mixing the hot water from 5 and the water from the water supply bypass pipe 6 and changing the mixing ratio, and 8 is a hot water supply for supplying hot water mixed by the mixing valve 7 to a hot water supply terminal (not shown). A pipe 9 is a circulation circuit in which hot and cold water is connected to the lower and upper portions of the hot water storage tank 1, and 10 is a circulation pump which is provided in the middle of the circulation circuit 9 and whose rotation speed can be varied.
11は冷媒を圧縮して吐出する回転数可変の圧縮機、12は一次側に圧縮機11からの冷媒が流通されると共に二次側に循環回路9の水が流通し、高温高圧冷媒から放熱して水を加熱するための水冷媒熱交換器、13は水冷媒熱交換器12からの冷媒を減圧膨張させる開度可変の減圧器、14は減圧器13で減圧された冷媒を蒸発させる蒸発器、15は蒸発器14に大気熱を供給するための回転数可変の送風機であり、圧縮機11、水冷媒熱交換器12、減圧器13、蒸発器14で加熱手段16を構成している。   11 is a compressor with a variable number of revolutions that compresses and discharges the refrigerant. 12, the refrigerant from the compressor 11 circulates on the primary side and the water in the circulation circuit 9 circulates on the secondary side, and radiates heat from the high-temperature and high-pressure refrigerant. A water refrigerant heat exchanger for heating water, 13 is a variable pressure decompressor for decompressing and expanding the refrigerant from the water refrigerant heat exchanger 12, and 14 is an evaporation for evaporating the refrigerant decompressed by the decompressor 13. , 15 is a blower with a variable number of revolutions for supplying atmospheric heat to the evaporator 14, and the compressor 11, the water refrigerant heat exchanger 12, the decompressor 13, and the evaporator 14 constitute a heating means 16. .
17は給水管2途中に設けられ市水を一定の給水圧(例えば設定圧力値170kPa)に減圧する給水減圧弁で、この給水減圧弁17は貯湯タンク1内の湯水を給水減圧弁17より上流側へ逆流させない逆止弁の機能を併せ持つものである。また、18は貯湯タンク1の上部に連通して設けられ貯湯タンク1内が負圧になった場合に開弁して貯湯タンク1内に空気を導入する負圧吸気弁、19は給水減圧弁17の一次側および給湯管8から分岐した位置に介在して凍結深度以下の地中に埋設され、給水を止水すると共に給水管2および給湯管8の水抜きを行うための不凍水抜き栓、19aは不凍水抜き栓19の操作ハンドル、19bは不凍水抜き栓19の排水口、19cは不凍水抜き栓19の排湯口である。   A water supply pressure reducing valve 17 is provided in the middle of the water supply pipe 2 and reduces the city water to a constant water pressure (for example, a set pressure value of 170 kPa). The water supply pressure reducing valve 17 supplies hot water in the hot water storage tank 1 upstream of the water supply pressure reducing valve 17. It also has the function of a check valve that does not flow back to the side. A negative pressure intake valve 18 is provided in communication with the upper portion of the hot water storage tank 1 and opens when the pressure in the hot water storage tank 1 becomes negative, and 19 is a water supply pressure reducing valve. 17 is embedded in the ground below the freezing depth through a position branched from the primary side and the hot water supply pipe 8 to stop the water supply and to drain the water supply pipe 2 and the hot water supply pipe 8. A stopper, 19a is an operation handle of the antifreeze water drain plug 19, 19b is a drain port of the antifreeze water drain plug 19, and 19c is a hot water outlet of the antifreeze water drain plug 19.
20a〜eは貯湯タンク1の側面上下に複数設けられ貯湯タンク1内の貯湯温度を検出する貯湯温度センサ、21は給湯管8途中に設けられ給湯流量を内部の羽根車の回転数により検出する給湯流量検出手段としての給湯流量センサ、22は給湯温度を検出する給湯温度センサ、23は給水温度を検出する給水温度センサ、24は循環回路9途中に設けられ水冷媒熱交換器12に流入する湯水の温度(入水温度)を検出する入水温度センサ、25は循環回路9途中に設けられ水冷媒熱交換器12から貯湯タンク1に戻る湯水の温度(沸き上げ温度)を検出する沸き上げ温度センサ、26は圧縮機11から水冷媒熱交換器12に流入する冷媒の温度(吐出温度)を検出する吐出温度センサである。   A plurality of hot water storage sensors 20a to e are provided on the upper and lower sides of the hot water storage tank 1 to detect the hot water storage temperature in the hot water storage tank 1, and 21 is provided in the middle of the hot water supply pipe 8 to detect the hot water supply flow rate based on the rotational speed of the internal impeller. A hot water flow rate sensor as hot water flow rate detection means, 22 is a hot water temperature sensor for detecting the hot water temperature, 23 is a hot water temperature sensor for detecting the hot water temperature, and 24 is provided in the middle of the circulation circuit 9 and flows into the water / refrigerant heat exchanger 12. An incoming water temperature sensor 25 detects the temperature of the hot water (incoming water temperature), and 25 is a boiling temperature sensor which is provided in the middle of the circulation circuit 9 and detects the temperature (boiling temperature) of the hot water returning from the water / refrigerant heat exchanger 12 to the hot water storage tank 1. , 26 is a discharge temperature sensor for detecting the temperature (discharge temperature) of the refrigerant flowing from the compressor 11 into the water refrigerant heat exchanger 12.
27は所望の給湯温度(給湯設定温度)を設定する給湯温度設定スイッチ27aと、風呂に風呂設定温度の湯水を設定量を足し湯する足し湯スイッチ27bと、風呂に高温の湯を差し湯して追い焚きを行う高温差し湯スイッチ27cと、給湯設定温度及び足し湯温度、足し湯量、高温差し湯中を表示する表示器27dを有したリモコンである。   Reference numeral 27 denotes a hot water supply temperature setting switch 27a for setting a desired hot water supply temperature (hot water supply set temperature), an additional hot water switch 27b for adding a set amount of hot water at the bath set temperature to the bath, and hot water to the bath. This is a remote controller having a hot water supply switch 27c for reheating and a display 27d for displaying a hot water supply set temperature, an additional hot water temperature, an additional hot water amount, and the hot hot water inside.
28は貯湯温度センサ20a〜e、給湯流量センサ21、給湯温度センサ22、給水温度センサ23、入水温度センサ24、沸き上げ温度センサ25、吐出温度センサ26、外気温センサ29の検出値が入力されると共にリモコン27と通信可能に接続され、三方弁5、混合弁7、循環ポンプ10、圧縮機11、減圧器13、送風機15の作動を予め記憶されたプログラムに従って制御する制御部である。   Reference numeral 28 denotes hot water storage temperature sensors 20a to 20e, hot water supply flow rate sensor 21, hot water supply temperature sensor 22, supply water temperature sensor 23, incoming water temperature sensor 24, boiling temperature sensor 25, discharge temperature sensor 26, and outside air temperature sensor 29. And a controller that is communicably connected to the remote controller 27 and controls the operation of the three-way valve 5, the mixing valve 7, the circulation pump 10, the compressor 11, the decompressor 13, and the blower 15 according to a program stored in advance.
そして、制御部28には水抜き解除手段28aが設けられ、前記外気温センサ29が凍結危険の所定温度以下ここでは0℃以下を検知することで、制御部28が三方弁5を上部出湯管3側を連通し、前記中間出湯管4側を閉塞するように切換るものであり、そしてこの状態で不凍水抜き栓19の開成操作を待つものであるが、この時、リモコン27の足し湯スイッチ27b或いは高温差し湯スイッチ27cが押圧されると、制御部28の水抜き解除手段28aがこれを検知して、三方弁5を上部出湯管3側を閉塞し、中間出湯管4側と連通する元の状態に切換て、貯湯タンク1内の中温水を風呂運転に使用するようにするものである。   The control unit 28 is provided with a drain release means 28a, and the control unit 28 detects the three-way valve 5 at the upper hot water pipe when the outside air temperature sensor 29 detects a predetermined freezing temperature or lower, here 0 ° C or lower. 3 is connected so that the intermediate hot water pipe 4 side is closed, and in this state, the opening operation of the antifreezing water drain plug 19 is awaited. When the hot water switch 27b or the hot water hot water switch 27c is pressed, the drain release means 28a of the control unit 28 detects this and closes the three-way valve 5 on the upper hot water discharge pipe 3 side, By switching to the original state of communication, the medium temperature water in the hot water storage tank 1 is used for bath operation.
30は給湯管8から分岐し風呂を構成する浴槽31に連通する湯張り管で、途中には電磁開閉弁32が備えられ、リモコン27の足し湯スイッチ27bや高温差し湯スイッチ27cの押圧で、常時閉成されている電磁開閉弁32を開成して風呂動作を可能とするものである。   30 is a hot water pipe that branches off from the hot water supply pipe 8 and communicates with a bathtub 31 that constitutes a bath, and is provided with an electromagnetic on-off valve 32 in the middle, and is pressed by an additional hot water switch 27b or a hot water hot water switch 27c of the remote control 27. The electromagnetic on-off valve 32 that is normally closed is opened to enable a bath operation.
次にこの一実施形態の作動について説明する。
給湯端末が開かれて給湯が開始されると、貯湯温度センサ20a〜eで検出した貯湯量が多く、貯湯タンク1の中間部付近より下に湯がある場合は、制御部28は、三方弁5を中間出湯管4側が連通し、上部出湯管3側を閉塞した状態として、貯湯タンク1の中間部から出湯し、混合弁7の開度を給湯温度センサ22が検出する給湯温度が給湯設定温度になるように調整して給湯する。一方、貯湯タンク1内の貯湯量が少なくなり、貯湯タンク1の中間部付近に湯がなくなると、制御部28は、三方弁5を中間出湯管4側を閉塞し、上部出湯管3側を連通した状態として、貯湯タンク1の上部から出湯する。
Next, the operation of this embodiment will be described.
When the hot water supply terminal is opened and hot water supply is started, when there is a large amount of hot water detected by the hot water storage temperature sensors 20a to 20e and there is hot water near the middle part of the hot water storage tank 1, the control unit 28 has a three-way valve. 5 is connected to the intermediate hot water discharge pipe 4 side and the upper hot water discharge pipe 3 side is closed, hot water is discharged from the intermediate portion of the hot water storage tank 1, and the hot water supply temperature detected by the hot water supply temperature sensor 22 is set to the hot water supply temperature. Adjust the water temperature so that it is hot. On the other hand, when the amount of hot water stored in the hot water storage tank 1 is reduced and there is no hot water in the vicinity of the intermediate portion of the hot water storage tank 1, the control unit 28 closes the three-way valve 5 on the intermediate hot water discharge pipe 4 side and closes the upper hot water discharge pipe 3 side. As the state of communication, the hot water is discharged from the upper part of the hot water storage tank 1.
このように、貯湯タンク1内の湯量が十分にある場合には、貯湯タンク1中間部から出湯し、湯量が十分にない場合は、貯湯タンク1上部から出湯するため、貯湯タンク1中間部の温度低下した湯を貯湯タンク1上部の高温水よりも先に消費できるため、貯湯タンク1上部には熱い湯を熱いまま残し、貯湯タンク1下部には温度低下した湯ではなく給水管2からの冷たい給水を残すことができる。   As described above, when the amount of hot water in the hot water storage tank 1 is sufficient, the hot water is discharged from the intermediate portion of the hot water storage tank 1, and when the amount of hot water is not sufficient, the hot water is discharged from the upper portion of the hot water storage tank 1. The hot water whose temperature has decreased can be consumed before the hot water in the upper part of the hot water storage tank 1, so hot hot water remains in the upper part of the hot water storage tank 1, and the hot water in the lower part of the hot water storage tank 1 is not supplied from the hot water. You can leave a cold water supply.
そして、電力料金単価の安価な深夜時間帯となると、制御部28は、加熱手段16の定格加熱能力を沸き上げ目標温度と最下部の貯湯温度センサ20eで検出する貯湯タンク1底部の被加熱水の温度との温度差で除して加熱手段16を通過させる被加熱水の目標循環量を算出し、予め記憶されている目標循環量と目標回転数との関係(式またはデータマップ)から、この目標循環量に応じた循環ポンプ10の目標回転数を設定し、圧縮機11、減圧器13、送風機15の作動を開始して加熱手段16を駆動すると共に循環ポンプ10を目標回転数で駆動して沸き上げ運転を開始する。   Then, when the midnight time zone in which the power unit price is low is reached, the control unit 28 detects the rated heating capacity of the heating means 16 with the boiling target temperature and the hot water storage temperature sensor 20e at the bottom, and the heated water at the bottom of the hot water storage tank 1 is detected. The target circulation amount of water to be heated that is allowed to pass through the heating means 16 by dividing by the temperature difference from the temperature of the above is calculated, and from the relationship (formula or data map) between the target circulation amount and the target rotation speed stored in advance, The target rotational speed of the circulation pump 10 corresponding to the target circulation amount is set, the operation of the compressor 11, the decompressor 13 and the blower 15 is started to drive the heating means 16 and the circulation pump 10 is driven at the target rotational speed. Then start boiling operation.
この時、貯湯タンク1内には湯として翌日に用いることができる熱い湯と、冷たい給水が残っていて、中間温度の湯が極力出湯されて残っていないため、ヒートポンプ式の加熱手段16で沸き上げる際にCOP(加熱効率)がよい状態で沸き上げ運転を行うことができる。   At this time, hot water that can be used as hot water the next day and cold water supply are left in the hot water storage tank 1, and hot water at an intermediate temperature is discharged as much as possible, so that it remains in the heat pump heating means 16. When raising the temperature, the boiling operation can be performed in a state where the COP (heating efficiency) is good.
そして、貯湯タンク1最下部の貯湯温度センサ20eが所定温度以上に達したことを検出するか、現在時刻が深夜時間帯の終了時刻に達すると、制御部28は、圧縮機11、減圧器13、送風機15の作動を停止して加熱手段16を停止すると共に循環ポンプ10を停止して沸き上げ運転を終了するようにしている。   When the hot water storage temperature sensor 20e at the bottom of the hot water storage tank 1 detects that the temperature has reached or exceeded a predetermined temperature, or when the current time reaches the end time of the midnight time zone, the control unit 28 causes the compressor 11 and the decompressor 13 to The operation of the blower 15 is stopped to stop the heating means 16 and the circulation pump 10 is stopped to end the boiling operation.
この時、制御部28は、貯湯タンク1内の貯湯量が中間出湯管4が取り付けられている位置よりも下まで沸き上げ運転を行うと、これを貯湯温度センサ20a〜eによって検出し、三方弁5を中間出湯管4側を連通し、上部出湯管3側を閉塞する状態として、給湯開始と同時に貯湯タンク1の中間部から出湯できるようにする。   At this time, when the controller 28 performs a boiling operation until the amount of hot water stored in the hot water storage tank 1 falls below the position where the intermediate hot water discharge pipe 4 is attached, this is detected by the hot water storage temperature sensors 20a to 20e. The valve 5 is connected to the intermediate hot water discharge pipe 4 side and the upper hot water discharge pipe 3 side is closed so that hot water can be discharged from the intermediate portion of the hot water storage tank 1 simultaneously with the start of hot water supply.
次に図1に示した貯湯式給湯装置に於いて、冬期に凍結の恐れのある時に不凍水抜き栓19がユーザーによって開かれて排水する場合と、解除について図2に示すフローチャートに基づいて説明する。   Next, in the hot water storage type hot water supply apparatus shown in FIG. 1, when there is a possibility of freezing in winter, the antifreeze drain plug 19 is opened and drained by the user, and the release is based on the flowchart shown in FIG. explain.
今冬期で外気温センサ29が凍結危険の所定温度以下ここでは0℃以下を検知することで(ステップS1)、YESでステップS2に進み制御部28が三方弁5を上部出湯管3側を連通し、前記中間出湯管4側を閉塞するように切換るものであり、そしてこの状態で不凍水抜き栓19の開成操作を待つものであり、そして不凍水抜き栓19の操作ハンドル19aがユーザーによって操作されて開成し排水動作が開始されると、給水管2内の水と給湯管8内の湯がそれぞれ不凍水抜き栓19の排水口19bと排湯口19cから排出されるが、三方弁5の中間出湯管4側が閉塞され貯湯タンク1の中間部とは連通されていないので、サイフォン現象による貯湯タンク1からの貯湯水の排水は防止されるもので、安心して使用出来るものであり、水資源の無駄及びエネルギーの無駄を阻止するものである。   When the outside air temperature sensor 29 detects below a predetermined freezing temperature or below 0 ° C. in this winter season (step S1), the process proceeds to step S2 with YES, and the control unit 28 communicates the three-way valve 5 with the upper hot water pipe 3 side. The intermediate hot water discharge pipe 4 is switched so as to be closed, and in this state, the opening operation of the antifreeze water drain plug 19 is awaited, and the operation handle 19a of the antifreeze water drain plug 19 is provided. When the user operates to open and start the drainage operation, the water in the water supply pipe 2 and the hot water in the hot water supply pipe 8 are discharged from the drainage port 19b and the drainage port 19c of the antifreeze drain plug 19, respectively. Since the intermediate hot water discharge pipe 4 side of the three-way valve 5 is closed and is not connected to the intermediate part of the hot water storage tank 1, drainage of the hot water from the hot water storage tank 1 due to siphon phenomenon is prevented and can be used with peace of mind. Yes, water It is intended to prevent waste and waste of energy sources.
一方、前記ステップS2の状態からステップS3に示すように、リモコン27の足し湯スイッチ27b或いは高温差し湯スイッチ27cが押圧されると、YESでステップS4に進み制御部28の水抜き解除手段28aがこれを検知して、三方弁5を上部出湯管3側を閉塞し、中間出湯管4側と連通する元の状態に切換て、貯湯タンク1内の中温水を風呂運転に使用できるようにして、ステップS5で風呂運転を行い高温水の使用を抑えて中温水を使用することで、効率の良い給湯風呂を得るものであり、そして、ステップS5で風呂運転の終了後にステップS6で終了後のカウントを開始して、終了から所定時間ここでは5分経過することで、YESでステップS2に戻り、制御部28が三方弁5を上部出湯管3側を連通し、前記中間出湯管4側を閉塞するように切換て、不凍水抜き栓19の開成操作を待つものであり、風呂運転が終了すれば自動的に元の戻って凍結防止が何時でもできるように待機するので、極めて使用勝手が良いものである。   On the other hand, as shown in step S3 from the state of step S2, when the additional hot water switch 27b or the high temperature hot water switch 27c of the remote controller 27 is pressed, the process proceeds to step S4 in YES, and the drain release means 28a of the control unit 28 is activated. By detecting this, the three-way valve 5 is closed on the upper hot water discharge pipe 3 side and switched to the original state communicating with the intermediate hot water discharge pipe 4 side so that the medium temperature water in the hot water storage tank 1 can be used for bath operation. In step S5, an efficient hot water bath is obtained by suppressing the use of high-temperature water and using hot water in step S5, and after completion of bath operation in step S5 and after completion in step S6. When the count starts and 5 minutes elapses from the end, the process returns to step S2 with YES, and the control unit 28 causes the three-way valve 5 to communicate with the upper hot water discharge pipe 3 side, and the intermediate hot water Switch to close the 4 side and wait for the opening operation of the antifreeze drain plug 19, and when the bath operation ends, it will automatically return to its original state and wait for freezing prevention at any time, It is extremely easy to use.
1 貯湯タンク
2 給水管
3 上部出湯管
4 中間出湯管
5 三方弁(切換手段)
8 給湯管
16 加熱手段
19 不凍水抜き栓
27 リモコン
28 制御部
28a 水抜き解除手段
29 外気温センサ
DESCRIPTION OF SYMBOLS 1 Hot water storage tank 2 Water supply pipe 3 Upper hot water discharge pipe 4 Intermediate hot water supply pipe 5 Three-way valve (switching means)
8 Hot water supply pipe 16 Heating means 19 Antifreeze water drain plug 27 Remote control 28 Control unit 28a Water drain release means 29 Outside air temperature sensor

Claims (1)

  1. 湯水を貯湯する貯湯タンクと、この貯湯タンクの湯水を加熱する加熱手段と、前記貯湯タンク下部に給水する給水管と、前記貯湯タンク上部から出湯する上部出湯管と、前記貯湯タンク中間部から出湯する中間出湯管と、前記上部出湯管と前記中間出湯管の何れか一方を選択する切換手段と、この切換手段の出湯側に接続された給湯管と、前記給水管及び給湯管に接続し開成されることで前記給水管及び給湯管内の残水を排水して凍結を防止する不凍水抜き栓と、外気温度を検出する外気温センサと、各種の設定や駆動指示を出力するリモコンと、前記給湯管から分岐し浴槽へ連通する湯張り管と、この湯張り管途中に設けられた電磁開閉弁と、前記リモコンの出力を受けて前記加熱手段や切換手段を制御する制御部とを備えたものに於いて、前記制御部は前記外気温センサが所定温度以下を検知すると前記切換手段を、前記上部出湯管側を連通し、前記中間出湯管側を閉塞するように切換るものであり、前記外気温センサが所定温度以下を検知して、前記切換手段が、前記上部出湯管側が連通され、前記中間出湯管側が閉塞された状態にて、前記リモコンのスイッチの押圧によって前記電磁開閉弁を開成する風呂動作の指示がされることで、前記切換手段を前記上部出湯管側を閉塞し、前記中間出湯管側と連通する状態に切換ることを特徴とする貯湯式給湯装置。 Tapping a hot water storage tank for hot water storage hot water, a heating means for heating the hot water of the hot water storage tank, a water supply pipe for supplying water to the hot water storage tank bottom, and an upper hot water pipe for hot water from the hot water storage tank top, from the hot water storage tank intermediate portion An intermediate hot water pipe, a switching means for selecting one of the upper hot water pipe and the intermediate hot water pipe, a hot water pipe connected to the hot water side of the switching means, and connected to the hot water pipe and the hot water pipe for opening. and antifreeze vent plug to prevent freezing and draining residual water in the water supply pipe and the hot water supply pipe by being, and outside air temperature sensor for detecting outside temperature, and the remote controller for outputting various settings and driving instructions, a hot water filling pipe communicating to the branched bathtub from the hot water supply pipe, an electromagnetic on-off valve provided in the water filling pipe midway, and a control unit for controlling the heating means and switching換手stage receiving the output of said remote control In what we have It said switching means and the control unit the ambient temperature sensor detects a predetermined temperature or less, the communicating the upper hot water pipe side, and at Setsu換Ru intended to close the intermediate tapping pipe side, said outdoor temperature sensor detects a predetermined temperature or less, said switching means, said upper tapping pipe side are communicated, said in a state where the intermediate tapping pipe side is closed, bath operation for opening the solenoid valve by pressing the switch of the remote control by instruction is, the switching means and closing the upper tapping pipe side, the intermediate tapping tube side and the hot-water storage type hot water supply apparatus according to claim Setsu換Ru that in a state of communicating.
JP2014122229A 2014-06-13 2014-06-13 Hot water storage water heater Active JP6254487B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014122229A JP6254487B2 (en) 2014-06-13 2014-06-13 Hot water storage water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014122229A JP6254487B2 (en) 2014-06-13 2014-06-13 Hot water storage water heater

Publications (2)

Publication Number Publication Date
JP2016003771A JP2016003771A (en) 2016-01-12
JP6254487B2 true JP6254487B2 (en) 2017-12-27

Family

ID=55223179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014122229A Active JP6254487B2 (en) 2014-06-13 2014-06-13 Hot water storage water heater

Country Status (1)

Country Link
JP (1) JP6254487B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6420736B2 (en) * 2015-08-05 2018-11-07 株式会社コロナ Hot water storage water heater

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60194241U (en) * 1984-05-31 1985-12-24
JP5318678B2 (en) * 2009-07-07 2013-10-16 株式会社コロナ Hot water storage water heater
JP5275172B2 (en) * 2009-08-21 2013-08-28 株式会社コロナ Hot water storage water heater
JP5152291B2 (en) * 2010-10-01 2013-02-27 三菱電機株式会社 Hot water storage hot water supply system
JP2012078041A (en) * 2010-10-05 2012-04-19 Corona Corp Hot-water storage type hot-water supply device

Also Published As

Publication number Publication date
JP2016003771A (en) 2016-01-12

Similar Documents

Publication Publication Date Title
EP1972858A2 (en) Hot water supply apparatus
JP4362118B2 (en) Hot water storage water heater
JP5462009B2 (en) Solar water heating system
JP5275172B2 (en) Hot water storage water heater
JP5866226B2 (en) Water heater
JP6254487B2 (en) Hot water storage water heater
JP2010266149A (en) Hot water storage type hot water supply device
JP2004061013A (en) Electric water heater
JP4277834B2 (en) Heat pump type water heater
JP5318678B2 (en) Hot water storage water heater
JP5198344B2 (en) Hot water storage water heater
JP4448488B2 (en) Hot water storage water heater
JP2013087998A (en) Water heater
JP2016001084A (en) Storage type hot water supply device
JP5413328B2 (en) Water heater
JP2006105566A (en) Hot water supply device
JP6392619B2 (en) Hot water storage water heater
JP6174482B2 (en) Hot water storage type heat pump water heater
JP6420736B2 (en) Hot water storage water heater
JP5797616B2 (en) water heater
JP5706304B2 (en) Hot water storage bath system
JP6625813B2 (en) Hot water storage system
JP5235782B2 (en) Hot water storage water heater
JP6628643B2 (en) Hot water supply system
JP6628136B2 (en) Hot water storage system

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20161118

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170919

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20171102

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20171128

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20171130

R150 Certificate of patent or registration of utility model

Ref document number: 6254487

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250