JP4316521B2 - Water heater - Google Patents

Water heater Download PDF

Info

Publication number
JP4316521B2
JP4316521B2 JP2005071512A JP2005071512A JP4316521B2 JP 4316521 B2 JP4316521 B2 JP 4316521B2 JP 2005071512 A JP2005071512 A JP 2005071512A JP 2005071512 A JP2005071512 A JP 2005071512A JP 4316521 B2 JP4316521 B2 JP 4316521B2
Authority
JP
Japan
Prior art keywords
hot water
time
heater
temperature
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.)
Expired - Fee Related
Application number
JP2005071512A
Other languages
Japanese (ja)
Other versions
JP2006250504A (en
Inventor
隆志 眞柄
正喜 高地
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Corona Corp
Original Assignee
Corona Corp
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 Corona Corp filed Critical Corona Corp
Priority to JP2005071512A priority Critical patent/JP4316521B2/en
Publication of JP2006250504A publication Critical patent/JP2006250504A/en
Application granted granted Critical
Publication of JP4316521B2 publication Critical patent/JP4316521B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Heat-Pump Type And Storage Water Heaters (AREA)

Description

本発明は、筐体内に湯水の配管と凍結防止ヒータを備えた給湯装置に関するものである。   The present invention relates to a hot water supply apparatus including a hot water pipe and a freeze prevention heater in a housing.

従来よりこの種の電気温水器やヒートポンプ貯湯式給湯装置においては、給湯装置は屋外に設置されて使用されるものであるため外気温度が零下になったようなときには通水配管内の水が凍結して、通水が不可能となる恐れがある。そこで、従来からこの通水配管に凍結防止ヒータを取り付け、通水配管を温めて加熱することによりこの通水配管内の水の凍結防止を図っていた。冬季に配管内の給湯用水を凍結させないためには、外気温度の影響を受け易い複数の個所に凍結防止ヒータを設置して、凍結防止ヒータに直接接続されているサーモスタットが所定の温度(例えば、サーモスタットが5℃以下になったときに凍結防止ヒータをONさせ、13℃でOFFさせる)で、これらの配管を加温させて凍結防止を図っている。(例えば、特許文献1参照)
特開2002−147858号公報
Conventionally, in this type of electric water heater and heat pump hot water storage type hot water supply device, the hot water supply device is installed outdoors and used, so when the outside air temperature becomes below zero, the water in the water flow pipe is frozen. Then, there is a risk that water flow is impossible. Therefore, conventionally, a freeze prevention heater is attached to the water flow pipe, and the water flow pipe is warmed and heated to prevent water in the water flow pipe from being frozen. In order not to freeze the hot water supply water in the piping in winter, freeze prevention heaters are installed at a plurality of locations that are easily affected by the outside air temperature, and the thermostat directly connected to the freeze prevention heater has a predetermined temperature (for example, The antifreeze heater is turned on when the thermostat is 5 ° C. or lower, and is turned off at 13 ° C.), so that these pipes are heated to prevent freezing. (For example, see Patent Document 1)
JP 2002-147858 A

しかし、この従来のものでは、外気温が5℃程の場合には、実際には配管の凍結の可能性が低いにもかかわらず、冬期間凍結防止ヒータが昼夜連続通電され、無駄に電力が消費される問題があった。   However, in this conventional apparatus, when the outside air temperature is about 5 ° C., the antifreeze heater is continuously energized day and night in the winter period even though the possibility of freezing of the pipe is low. There was a problem that was consumed.

そこで、本発明は上記課題を解決するため、請求項1では、筐体内に湯水の配管類を備え、凍結防止のために前記配管類を加熱する凍結防止ヒータと、前記筐体内の温度を検出する温度センサと、この温度センサの値に応じて前記凍結防止ヒータの通電を行う制御装置を備えた給湯装置に於いて、運転停止や時刻の設定等を行う操作部を設け、前記制御装置には時刻認識手段を備えると共に、現在時刻に応じて前記凍結防止ヒータの作動温度が異なるヒータ制御手段を備え、前記ヒータ制御手段は、時刻Aから時刻Bまでの夜間の前記凍結防止ヒータをOFFする温度より前記時刻Bから前記時刻Aまでの昼間の前記凍結防止ヒータをOFFする温度の方を低くしたものである。
Accordingly, in order to solve the above-described problems, the present invention provides a hot water pipe in a casing, a freeze prevention heater for heating the pipes to prevent freezing, and a temperature in the casing. And a control device for energizing the antifreeze heater according to a value of the temperature sensor, an operation unit for stopping operation, setting time, etc. is provided, and the control device Rutotomoni with time recognizing means, a heater control means for operating temperature of the antifreeze heater is different depending on the current time, the heater control means, OFF at night the antifreeze heater from time a to time B The temperature at which the freeze prevention heater is turned off in the daytime from the time B to the time A is lower than the temperature at which the heat treatment is performed.

また、請求項2では、給水管と給湯管が接続され湯水を貯湯する貯湯タンクを内部に備えた貯湯タンクユニットと、前記貯湯タンク内の湯水を加熱する加熱手段と、凍結防止のために貯湯タンク内の配管類を加熱する凍結防止ヒータと、前記貯湯タンクユニット内の温度を検出する温度センサと、この温度センサの値に応じて前記凍結防止ヒータの通電を行う制御装置を備えた貯湯式給湯装置に於いて、運転停止や時刻の設定等を行う操作部を設け、前記制御装置には時刻認識手段を備えると共に、現在時刻に応じて前記凍結防止ヒータの作動温度が異なるヒータ制御手段を備え、前記ヒータ制御手段は、時刻Aから時刻Bまでの夜間の前記凍結防止ヒータをOFFする温度より前記時刻Bから前記時刻Aまでの昼間の前記凍結防止ヒータをOFFする温度の方を低くしたものである。 According to a second aspect of the present invention, there is provided a hot water storage tank unit having a hot water storage tank for storing hot water connected to the hot water supply pipe, a heating means for heating the hot water in the hot water storage tank, and hot water storage for preventing freezing. A hot water storage type equipped with a freeze prevention heater for heating piping in the tank, a temperature sensor for detecting the temperature in the hot water storage tank unit, and a controller for energizing the freeze prevention heater according to the value of the temperature sensor in the water heater, the operation unit for setting the operation stop, time or the like is provided, Rutotomoni includes a time recognition means to the control device, the operating temperature of the antifreeze heater in accordance with the current time are different heater control means wherein the heater control means, the daytime the antifreeze heater than the temperature to OFF at night the antifreeze heater from time a to time B from the time B to the time a It is obtained by low towards the FF to temperature.

また、請求項3では、前記ヒータ制御手段にて現在時刻が夜の時刻Aから朝の時刻Bまでの間は、前記凍結防止ヒータは温度センサの値が所定温度T1でONし、所定温度T1より高い所定温度T2でOFFする通電制御を行い、朝の時刻Bから夜の時刻Aまでの間は凍結防止ヒータは温度センサの値が前記所定温度T1でONし、所定温度T1と所定温度T2の間の所定温度T3でOFFする通電制御を行う制御装置を備えたものである。   According to a third aspect of the present invention, during the period from the time A at night to the time B in the morning by the heater control means, the antifreeze heater is turned on at a predetermined temperature T1, and the predetermined temperature T1 The energization control is performed to turn off at a higher predetermined temperature T2, and during the period from morning time B to night time A, the value of the temperature sensor of the freeze prevention heater is turned on at the predetermined temperature T1, and the predetermined temperature T1 and the predetermined temperature T2 And a control device that performs energization control to be turned off at a predetermined temperature T3.

また、請求項4では、前記操作部にて前記時刻Aまたは時刻Bを任意に変更可能な制御装置を備えたものである。   According to a fourth aspect of the present invention, a control device that can arbitrarily change the time A or the time B at the operation unit is provided.

以上のように、本発明によれば、凍結防止ヒータの通電精度が向上し、消費電力を低減する事ができる。
また、時刻Aまたは時刻Bを任意に変更可能な制御装置を備えたので、給湯装置を使用する地方の気候に応じて条件の変更ができ、より消費電力を低減する事ができる。
As described above, according to the present invention, the energization accuracy of the antifreeze heater can be improved and the power consumption can be reduced.
Moreover, since the control apparatus which can change time A or time B arbitrarily is provided, conditions can be changed according to the local climate which uses a hot-water supply apparatus, and power consumption can be reduced more.

次に、本発明の一実施形態を図面に基づいて説明する。   Next, an embodiment of the present invention will be described with reference to the drawings.

この貯湯式給湯装置は、時間帯別契約電力の電力単価が安価な深夜時間帯に湯水を沸き上げて貯湯し、この貯湯した湯水を給湯に用いるもので、1は筐体内に湯水を貯湯する貯湯タンク2を備えた貯湯タンクユニット、3は貯湯タンク内の湯水を加熱する加熱手段としてのヒートポンプユニット、4は台所や洗面所等に設けられた給湯栓、5はこの貯湯式給湯装置を遠隔操作する操作部としてのリモコン、6は浴槽である。   In this hot water storage type hot water supply apparatus, hot water is boiled and stored in the midnight hours when the unit price of contracted electric power by time zone is low, and the hot water stored is used for hot water supply. 1 stores hot water in a housing. A hot water storage tank unit having a hot water storage tank 2, 3 is a heat pump unit as a heating means for heating hot water in the hot water storage tank, 4 is a hot water tap provided in a kitchen or a washroom, etc. 5 is a remote control of this hot water storage type hot water supply device A remote controller 6 as an operation unit to be operated is a bathtub.

前記貯湯タンクユニット1の貯湯タンク2は、上端に給湯管7と、下端に給水管8とが接続され、さらに、下部にヒーポン循環回路を構成する入水管9と、上部にヒーポン循環回路を構成する出湯管10とが接続され、前記ヒートポンプユニット3によって入水管9から取り出した貯湯タンク2内の湯水を沸き上げて出湯管10から貯湯タンク2内に戻して貯湯され、給水管8からの給水により貯湯タンク2内の湯水が押し上げられて貯湯タンク2内上部の高温水が給湯管7から押し出されて給湯されるものである。   The hot water storage tank 2 of the hot water storage tank unit 1 has a hot water supply pipe 7 connected to the upper end, a water supply pipe 8 connected to the lower end, a water inlet pipe 9 constituting a heat pump circulation circuit in the lower part, and a heat pump circulation circuit in the upper part. The hot water in the hot water storage tank 2 taken out from the incoming water pipe 9 by the heat pump unit 3 is boiled up and returned to the hot water storage tank 2 from the hot water discharge pipe 10 to be stored in the hot water storage tank 8. As a result, hot water in the hot water storage tank 2 is pushed up, and hot water in the upper part of the hot water storage tank 2 is pushed out from the hot water supply pipe 7 to be supplied with hot water.

前記ヒートポンプユニット3は、回転数可変の圧縮機11と凝縮器としての冷媒−水熱交換器12と膨張弁13と強制空冷式の蒸発器14で構成されたヒートポンプ回路15と、貯湯タンク2内の湯水を前記入水管9および出湯管10を介して冷媒−水熱交換器12に循環させる循環ポンプ16と、それらの駆動を制御するヒーポン制御部17とを備えており、ヒートポンプ回路15内には冷媒として二酸化炭素が用いられて超臨界ヒートポンプサイクルを構成しているものである。なお、冷媒に二酸化炭素を用いているので、低温水を電熱ヒータなしで約90℃の高温まで沸き上げることが可能なものである。   The heat pump unit 3 includes a compressor 11 having a variable number of revolutions, a refrigerant-water heat exchanger 12 as a condenser, an expansion valve 13, a forced air-cooled evaporator 14, and a hot water storage tank 2. A circulating pump 16 that circulates the hot and cold water to the refrigerant-water heat exchanger 12 through the water inlet pipe 9 and the hot water outlet pipe 10, and a heat pump controller 17 that controls the driving of the refrigerant pump. Is one in which carbon dioxide is used as a refrigerant to constitute a supercritical heat pump cycle. Since carbon dioxide is used as the refrigerant, it is possible to boil low temperature water to a high temperature of about 90 ° C. without an electric heater.

18は前記入水管9又は冷媒−水熱交換器12入り口に取り付けられた入水温センサで、冷媒−水熱交換器12で加熱する前の水温をサーミスタセンサ等により検知するものである。
19は前記出湯管10又は冷媒−水熱交換器12出口に取り付けられた出湯温センサで、冷媒−水熱交換器12で加熱後の湯温をサーミスタセンサ等によって検知するものである。
Reference numeral 18 denotes an incoming water temperature sensor attached to the inlet pipe 9 or the refrigerant-water heat exchanger 12 entrance, and detects the water temperature before being heated by the refrigerant-water heat exchanger 12 by a thermistor sensor or the like.
A hot water temperature sensor 19 is attached to the outlet pipe 10 or the outlet of the refrigerant-water heat exchanger 12, and detects the hot water temperature heated by the refrigerant-water heat exchanger 12 by a thermistor sensor or the like.

ここで、前記冷媒−水熱交換器12は冷媒と被加熱水たる貯湯タンク2内の湯水とが対向して流れる対向流方式を採用しており、超臨界ヒートポンプサイクルでは熱交換時において冷媒は超臨界状態のまま凝縮されるため効率良く高温まで被加熱水を加熱することができ、被加熱水の冷媒−水熱交換器12入口温度bと冷媒の出口温度aとの温度差tに応じて前記膨張弁12または圧縮機11の回転数を制御すると共に、前記循環ポンプ16の流量cを制御することで、COPがとても良い状態で被加熱水を加熱することが可能なものである。   Here, the refrigerant-water heat exchanger 12 employs a counter flow system in which the refrigerant and hot water in the hot water storage tank 2 that is heated water are opposed to each other. In the supercritical heat pump cycle, the refrigerant is exchanged during heat exchange. The water to be heated can be efficiently heated to a high temperature because it is condensed in the supercritical state, and according to the temperature difference t between the refrigerant-water heat exchanger 12 inlet temperature b and the refrigerant outlet temperature a. By controlling the rotational speed of the expansion valve 12 or the compressor 11 and controlling the flow rate c of the circulation pump 16, the water to be heated can be heated with a very good COP.

次に、20は前記浴槽6の湯水を加熱するためのステンレス製の蛇管よりなる熱交換器で、貯湯タンク2内の上部に配置されていると共に、この熱交換器20にはふろ往き管21およびふろ循環ポンプ22を備えたふろ戻り管23よりなるふろ循環回路24が接続されて浴槽6の湯水が循環可能にされ、浴槽6内の湯水が貯湯タンク2内の高温水により加熱されて保温あるいは追い焚きが行われるものである。   Next, 20 is a heat exchanger made of a stainless steel serpentine tube for heating the hot water in the bathtub 6, and is arranged at the upper part in the hot water storage tank 2. A bath circulation circuit 24 comprising a bath return pipe 23 provided with a bath circulation pump 22 is connected so that hot water in the bathtub 6 can be circulated, and the hot water in the bathtub 6 is heated by the high-temperature water in the hot water storage tank 2 to keep warm. Or it is something that is chased.

25はふろ戻り管23を介して熱交換器20を流出し浴槽6へ流れる温度を検出するふろ戻り温度センサ、26は熱交換器20に流入する浴槽水の温度を検出するふろ往き温度センサ26である。   A bath return temperature sensor 25 detects the temperature flowing out of the heat exchanger 20 through the bath return pipe 23 and flowing into the bathtub 6, and a bath temperature sensor 26 detects the temperature of the bath water flowing into the heat exchanger 20. It is.

次に、27は給湯管7からの湯と給水管8から分岐された給水バイパス管28からの低温水を混合する電動ミキシング弁より構成された給湯混合弁であり、その下流の給湯管29に設けた給湯温度センサ30で検出した湯温がリモコン5でユーザーが設定した給湯設定温度になるように混合比率が制御されるものである。   Next, 27 is a hot water supply mixing valve composed of an electric mixing valve for mixing hot water from the hot water supply pipe 7 and low temperature water from the water supply bypass pipe 28 branched from the water supply pipe 8. The mixing ratio is controlled so that the hot water temperature detected by the provided hot water temperature sensor 30 becomes the hot water supply set temperature set by the user using the remote controller 5.

31は給湯管29から分岐されてふろ戻り管23に連通された湯張り管で、この湯張り管31には、浴槽6への湯張りの開始/停止を行う湯張り弁32と、浴槽6への湯張り量をカウントするふろ流量カウンタ33と、浴槽水が給湯管29へ逆流するのを防止する逆止弁34とが設けられているものである。   Reference numeral 31 denotes a hot water filling pipe branched from the hot water supply pipe 29 and communicated with the bath return pipe 23. The hot water filling pipe 31 includes a hot water filling valve 32 for starting / stopping hot water filling to the bathtub 6, and a bathtub 6 A bath flow counter 33 that counts the amount of hot water filled in the water and a check valve 34 that prevents the bath water from flowing back to the hot water supply pipe 29 are provided.

次に、35は貯湯タンク2の上下方向に複数個配置された貯湯温度センサで、この実施形態では5つの貯湯温度センサが配置され上から35a、35b、35c、35d、35eと呼び、この貯湯温度センサ35が検出する温度情報によって、貯湯タンク2内にどれだけの熱量が残っているかを検知し、そして貯湯タンク2内の上下方向の温度分布を検知するものである。   Next, a plurality of hot water storage temperature sensors 35 are arranged in the vertical direction of the hot water storage tank 2. In this embodiment, five hot water storage temperature sensors are arranged and are called 35a, 35b, 35c, 35d, 35e from the top. The amount of heat remaining in the hot water storage tank 2 is detected based on the temperature information detected by the temperature sensor 35, and the temperature distribution in the vertical direction in the hot water storage tank 2 is detected.

36はタンクユニット1内の各配管に多数取り付けられた凍結防止ヒータで、複数個の発熱体が連なって接続端子間に接続され、この接続端子間に交流電圧を入力すると、個々の発熱体が発熱して各配管を加熱する事で、配管内の凍結を防止して通水を確保するものである。
37は温度センサで、タンクユニット1内の給水管8近傍で、配管温度又は配管雰囲気温度をサーミスタセンサで検知するものである。
38は貯湯タンクユニット1内の各センサの入力を受け各アクチュエータの駆動を制御するマイコンを有し制御装置を構成する給湯制御部である。この給湯制御部38に前記リモコン5が無線または有線により接続されユーザーが任意の給湯設定温度やふろ設定温度や時刻の設定・変更ができるようにしているものである。
A number of anti-freezing heaters 36 are attached to each pipe in the tank unit 1. A plurality of heating elements are connected to each other and connected between connection terminals. When an AC voltage is input between these connection terminals, each heating element is Heat is generated and each pipe is heated to prevent freezing in the pipe and ensure water flow.
Reference numeral 37 denotes a temperature sensor that detects the pipe temperature or the pipe atmosphere temperature by the thermistor sensor in the vicinity of the water supply pipe 8 in the tank unit 1.
A hot water supply control unit 38 includes a microcomputer that receives the input of each sensor in the hot water storage tank unit 1 and controls the driving of each actuator, and constitutes a control device. The remote controller 5 is connected to the hot water supply control unit 38 wirelessly or by wire so that the user can set / change arbitrary hot water supply set temperature, bath set temperature, and time.

前記給湯制御部38には、温度センサ37の温度に応じて凍結防止ヒータ36の通電制御を行うヒータ制御手段39と、現在時刻を計時する時刻認識手段40を備え、現在時刻に応じて前記凍結防止ヒータ36の作動温度を異ならせることで、凍結防止ヒータ36の消費電力の削減を行うもので、具体的には、現在時刻が夜の時刻A(PM8:00)から朝の時刻B(AM8:00)までの夜間は、前記凍結防止ヒータ36は温度センサ37の値が所定温度T1(5℃)でONし、T1より高い所定温度T2(13℃)でOFFする通電制御を行い、朝の時刻B(AM8:00)から夜の時刻A(PM8:00)までの昼間は、夜間に比べて外気温が高いので凍結防止ヒータ36は温度センサ37の値が前記所定温度T1(5℃)でONし、所定温度T1(5℃)と所定温度T2(13℃)の間の所定温度T3(6℃)でOFFする通電制御を行う。   The hot water supply control unit 38 includes a heater control unit 39 that controls energization of the freeze prevention heater 36 according to the temperature of the temperature sensor 37 and a time recognition unit 40 that measures the current time. By varying the operating temperature of the prevention heater 36, the power consumption of the freeze prevention heater 36 is reduced. Specifically, the current time is from the time A (PM 8:00) at night to the time B (AM8 in the morning). 0:00), the anti-freezing heater 36 performs energization control in which the value of the temperature sensor 37 is turned on at a predetermined temperature T1 (5 ° C.) and turned off at a predetermined temperature T2 (13 ° C.) higher than T1. During the daytime from the time B (AM8: 00) to the time A (PM8: 00) at night, the outside air temperature is higher than at night, so the antifreeze heater 36 has the temperature sensor 37 value of the predetermined temperature T1 (5 ° C.). ) It performs energization control to OFF at a predetermined temperature T3 (6 ° C.) between the constant temperature T1 (5 ° C.) to a predetermined temperature T2 (13 ℃).

これによって、外気温が5℃程の場合で、実際には配管の凍結の可能性が極めて低い冬期間の日中の凍結防止ヒータ36の通電が抑制され無駄な電力消費を削減できるものである。
また、前記給湯制御部38は前記リモコン5からなる操作部にて前記夜の時刻Aまたは朝の時刻Bを任意に変更可能とすることで、給湯機の使用地域に応じてよりいっそうの電力消費の削減ができるものである。
また、前記給湯制御部38には、前記複数の貯湯温度センサ35a〜35eの出力が入力され、これらの検出温度を基に貯湯タンク2内の残熱量が足りているかを判断する残熱量判断部41が設けられている。
As a result, in the case where the outside air temperature is about 5 ° C., the energization of the antifreeze heater 36 during the winter period when the possibility of freezing of the pipe is actually extremely low is suppressed, and wasteful power consumption can be reduced. .
In addition, the hot water supply control unit 38 can arbitrarily change the night time A or the morning time B by the operation unit including the remote controller 5, thereby further consuming electric power according to the region where the water heater is used. Can be reduced.
The hot water supply control unit 38 receives the outputs of the plurality of hot water storage temperature sensors 35a to 35e, and determines whether there is sufficient residual heat in the hot water storage tank 2 based on the detected temperatures. 41 is provided.

前記リモコン5には、給湯設定温度を設定する給湯温度設定スイッチ42、およびふろ設定温度を設定するふろ温度設定スイッチ43がそれぞれ設けられていると共に、浴槽6へふろ設定温度の湯をリモコン5の湯張り量設定スイッチ(図示せず)で設定された湯張り量だけ湯張りし所定時間保温させるふろ自動スイッチ44と、浴槽水を追い焚きさせる追い焚きスイッチ(図示せず)と、現在時刻の設定や夜の時刻Aや朝の時刻Bの設定を切り替えるモード切替スイッチ45と、貯湯タンク2内の湯水を昼間時間帯においても一定量沸き増しさせる沸き増しスイッチ46とが設けられているものである。また、このリモコン5にはドットマトリクスの表示部47と、ブザー音や音声案内を出力するスピーカ48と、これらを制御するリモコン制御部49とが設けられているものである。   The remote controller 5 is provided with a hot water supply temperature setting switch 42 for setting the hot water supply set temperature and a bath temperature setting switch 43 for setting the bath set temperature, respectively. A bath automatic switch 44 that fills the hot water amount set by a hot water amount setting switch (not shown) and keeps it warm for a predetermined time, a reheating switch (not shown) that drives the bath water, and the current time There are provided a mode changeover switch 45 for switching between setting and setting of night time A and morning time B, and a reheating switch 46 for increasing the amount of hot water in the hot water storage tank 2 in a daytime time zone. is there. The remote controller 5 is provided with a dot matrix display unit 47, a speaker 48 for outputting a buzzer sound and voice guidance, and a remote control unit 49 for controlling them.

また、前記表示部47の一部領域には、貯湯タンク2内の残湯量を視覚的に表示する貯湯量表示部50が設けられているもので、前記残熱量判断部41にて算出される残湯量に応じて貯湯タンク2を模した図形内に残湯を示すバー表示の点灯数を変化させるものである。   Further, a partial area of the display unit 47 is provided with a hot water storage amount display unit 50 for visually displaying the remaining hot water amount in the hot water storage tank 2, and is calculated by the residual heat amount determination unit 41. In accordance with the amount of remaining hot water, the number of lighting of the bar display indicating the remaining hot water is changed in a figure imitating the hot water storage tank 2.

そして、前記リモコン制御部49には表示部47に表示させる文字情報を記憶した文字情報メモリ51と、スピーカ48から報知する音声案内の音声を記憶した音声合成IC52が設けられているものである。   The remote control unit 49 is provided with a character information memory 51 that stores character information to be displayed on the display unit 47 and a voice synthesis IC 52 that stores voice guidance voices notified from the speaker 48.

なお、53は貯湯タンク2の過圧を逃す過圧逃し弁、54は給水の圧力を減圧する減圧弁、55は給湯する湯水の量をカウントする給湯流量カウンタ、56は給水の温度を検出する給水温度センサである。   In addition, 53 is an overpressure relief valve for releasing the overpressure of the hot water storage tank 2, 54 is a pressure reducing valve for reducing the pressure of the water supply, 55 is a hot water supply flow rate counter for counting the amount of hot water to be supplied, and 56 is for detecting the temperature of the water supply. It is a feed water temperature sensor.

なお、この種の貯湯式給湯装置のCOPは{(出湯温度a−入水温度b)×循環流量c÷消費電力}の式により求める事ができるものであるが、電源を交流200Vの商用電源を使用するので、前記の演算式(t×c/d1)では消費電力に変え電流値d1を用い、且つ所定値xを定めることで簡易的に計算を行うものである。   Note that the COP of this type of hot water storage type hot water supply device can be obtained by the formula {(hot water temperature a-water temperature b) × circulation flow rate c ÷ power consumption}. Therefore, the calculation formula (t × c / d1) is simply calculated by using the current value d1 instead of the power consumption and determining the predetermined value x.

次に、この実施例1の作動を説明する。
まず、深夜電力時間帯になって貯湯温度センサ35が貯湯タンク2内に翌日に必要な熱量が残っていないことを検出すると、給湯制御部38はヒーポン制御部17に対して沸き上げ開始指令を発する。指令を受けたヒーポン制御部17は圧縮機11を起動した後に循環ポンプ16を駆動開始し、貯湯タンク2下部に接続された入水管9から取り出した5〜20℃程度の低温水を冷媒−水熱交換器12で65〜90℃程度の高温に加熱し、貯湯タンク2上部に接続された出湯管10から貯湯タンク2内に戻し、貯湯タンク2の上部から順次積層して高温水を貯湯していく。貯湯温度センサ35や出湯温センサ19が必要な熱量が貯湯されたことを検出すると、給湯制御部38はヒーポン制御部17に対して沸き上げ停止指令を発し、ヒーポン制御部17は圧縮機11を停止すると共に循環ポンプ16も停止して沸き上げ動作を終了するものである。
Next, the operation of the first embodiment will be described.
First, when the hot water storage temperature sensor 35 detects that the necessary amount of heat does not remain in the hot water storage tank 2 in the midnight power time zone, the hot water supply control unit 38 issues a boiling start command to the heat pump control unit 17. To emit. Upon receiving the command, the heat pump control unit 17 starts driving the compressor 11 and then starts to drive the circulation pump 16, and cool water of about 5 to 20 ° C. taken out from the water inlet pipe 9 connected to the lower part of the hot water storage tank 2. Heated to a high temperature of about 65 to 90 ° C. with the heat exchanger 12, returned to the hot water storage tank 2 from the hot water discharge pipe 10 connected to the upper part of the hot water storage tank 2, and sequentially stacked from the upper part of the hot water storage tank 2 to store the hot water. To go. When the hot water storage temperature sensor 35 and the hot water temperature sensor 19 detect that the necessary amount of heat has been stored, the hot water supply control unit 38 issues a boiling stop command to the heat pump control unit 17, and the heat pump control unit 17 turns on the compressor 11. At the same time, the circulating pump 16 is stopped and the boiling operation is finished.

次に、給湯運転について説明すると、給湯栓4を開くと、給水管8からの給水が貯湯タンク2内に流れ込む。そして貯湯タンク2に貯められた高温水が給湯管7を介して給湯混合弁27へ流入し、給水バイパス管38からの低温水と混合され、給湯制御部38により給湯混合弁27の混合比率が調整されて給湯設定温度の湯が給湯栓4から給湯される。そして、給湯栓4の閉止によって給湯が終了するものである。   Next, the hot water supply operation will be described. When the hot water tap 4 is opened, the water supplied from the water supply pipe 8 flows into the hot water storage tank 2. Then, the hot water stored in the hot water storage tank 2 flows into the hot water supply mixing valve 27 through the hot water supply pipe 7 and is mixed with the low temperature water from the hot water supply bypass pipe 38, and the hot water control section 38 sets the mixing ratio of the hot water supply mixing valve 27. The adjusted hot water of the hot water supply set temperature is supplied from the hot water tap 4. Then, the hot water supply is completed by closing the hot water tap 4.

次に、浴槽6への湯張り運転について説明すると、リモコン5のふろ自動スイッチ44が操作されると、給湯制御部38が湯張り弁32を開弁する。そして、給湯混合弁27によってふろ設定温度に調整された湯水が湯張り管31からふろ戻り管23を介して浴槽6へ湯張りされ、湯張り管31途中に設けられたふろ流量カウンタ33が所定の湯張り量をカウントすると給湯制御部38が湯張り弁32を閉弁して湯張り運転を終了するものである。   Next, the hot water filling operation to the bathtub 6 will be described. When the automatic bath switch 44 of the remote controller 5 is operated, the hot water supply control unit 38 opens the hot water filling valve 32. Then, the hot water adjusted to the set temperature by the hot water supply mixing valve 27 is filled from the hot water filling pipe 31 to the bathtub 6 through the hot water return pipe 23, and a bath flow rate counter 33 provided in the middle of the hot water filling pipe 31 is predetermined. When the amount of hot water filling is counted, the hot water supply control unit 38 closes the hot water filling valve 32 and ends the hot water filling operation.

次に、図3によって冬期間の凍結防止ヒータ36の作動について説明すれば、運転中にST1にて温度センサ37と現在時刻Xと設定時刻A・Bを読み込む。
次に、現在時刻が夜の時刻A(PM8:00)から朝の時刻B(AM8:00)までの夜間はST3に進み、現在時刻が朝の時刻B(AM8:00)から夜の時刻A(PM8:00)までの昼間はST5に進む。ST3にて夜間は気温が低くなるため、配管の凍結防止を十分に行う必要が有り、凍結防止ヒータ36は温度センサ37の値が所定温度T1(5℃)でONし(ST4)、ST6にてT1より高い所定温度T2(13℃)と比較し、Yesの場合ST8にて凍結防止ヒータ36をOFFする通電制御を行う事で貯湯タンクユニット1内の配管の凍結を完全に防止することができる。またST6にてNoの場合には、ST1に戻るものである。
Next, the operation of the anti-freezing heater 36 during the winter period will be described with reference to FIG. 3. During operation, the temperature sensor 37, the current time X, and the set times A and B are read at ST1.
Next, in the night from the current time A (PM 8:00) to the morning time B (AM 8:00), the process proceeds to ST3, and the current time is the morning time B from the morning time B (AM 8:00). During the daytime until (PM8: 00), proceed to ST5. At ST3, the temperature is low at night, so it is necessary to sufficiently prevent the pipe from freezing. The antifreeze heater 36 is turned on when the value of the temperature sensor 37 is a predetermined temperature T1 (5 ° C.) (ST4). Compared with a predetermined temperature T2 (13 ° C.) higher than T1, in the case of Yes, it is possible to completely prevent freezing of the piping in the hot water storage tank unit 1 by performing energization control to turn off the antifreeze heater 36 in ST8. it can. If NO in ST6, the process returns to ST1.

また、ST5では朝の時刻B(AM8:00)から夜の時刻A(PM8:00)までの昼間は夜間に比べ気温が高くなるので、特に外気温が5℃程の場合には、実際には配管の凍結の可能性が低いにもかかわらず、冬期間凍結防止ヒータが昼夜連続通電され、無駄に電力が消費されることを防止するために、凍結防止ヒータ36は温度センサ37の値が所定温度T1(5℃)でONし、所定温度T1(5℃)と所定温度T2(13℃)の間の所定温度T3(6℃)でOFFする通電制御を行う(ST7〜8)ことで、無駄な電力の消費を削減することができる。ST7にてNoの場合にはST1に戻る。また、ST4・8にて凍結防止ヒータ36制御後もST1に戻って運転中は常にこの凍結防止の制御を繰り返すものである。   Also, in ST5, the temperature during the daytime from morning time B (AM8: 00) to nighttime time A (PM8: 00) is higher than during the night, especially when the outside temperature is about 5 ° C. The anti-freeze heater 36 has a value of the temperature sensor 37 in order to prevent the anti-freeze heater from being energized continuously day and night, even though the possibility of freezing of the piping is low. By conducting energization control that turns on at a predetermined temperature T1 (5 ° C) and turns off at a predetermined temperature T3 (6 ° C) between the predetermined temperature T1 (5 ° C) and the predetermined temperature T2 (13 ° C) (ST7-8). , Wasteful power consumption can be reduced. If No in ST7, the process returns to ST1. Further, after the freeze prevention heater 36 is controlled in ST4 and 8, the process returns to ST1 and the freeze prevention control is always repeated during operation.

次に、夜の時刻Aと朝の時刻Bの変更方法について説明すれば、モード切替スイッチ45を押圧すれば、表示部47に夜の時刻Aが表示され、給湯温度設定スイッチ42の押圧によって自由に時間変更ができるものであり、モード切替スイッチ45の再度の押圧により、表示部47に夜の時刻Bが表示され、給湯温度設定スイッチ42の押圧によって自由に時間変更ができるものであり、また、モード切替スイッチ45の次の押圧により、表示部47に現在時刻が表示され、給湯温度設定スイッチ42の押圧によって自由に時刻変更ができるものであり、また、モード切替スイッチ45の次の押圧により表示部47が通常の表示に戻るものである。   Next, a method for changing the night time A and the morning time B will be described. When the mode switch 45 is pressed, the night time A is displayed on the display unit 47 and can be freely set by pressing the hot water temperature setting switch 42. The time B is displayed on the display unit 47 by pressing the mode changeover switch 45 again, and the time can be freely changed by pressing the hot water supply temperature setting switch 42. The current time is displayed on the display unit 47 by the next press of the mode changeover switch 45, and the time can be freely changed by the press of the hot water supply temperature setting switch 42, and by the next press of the mode changeover switch 45. The display unit 47 returns to normal display.

このように、本発明によれば、外気温に対する凍結防止ヒータの通電精度が向上し、消費電力を低減する事ができる。
また、時刻Aまたは時刻Bを任意に変更可能な制御装置を備えたので、給湯装置を使用する地方の気候に応じて条件の変更ができ、より消費電力を低減する事ができる。
As described above, according to the present invention, the energization accuracy of the anti-freezing heater with respect to the outside air temperature can be improved, and the power consumption can be reduced.
Moreover, since the control apparatus which can change time A or time B arbitrarily is provided, conditions can be changed according to the local climate which uses a hot-water supply apparatus, and power consumption can be reduced more.

本発明の実施例の貯湯式給湯装置の概略構成図。The schematic block diagram of the hot water storage type hot-water supply apparatus of the Example of this invention. 同実施例の要部ブロック図。The principal part block diagram of the Example. 同実施例の作動を説明するタイミングチャート図。The timing chart figure explaining the action | operation of the Example.

符号の説明Explanation of symbols

1 貯湯タンクユニット
5 リモコン
36 凍結防止ヒータ
37 温度センサ
38 給湯制御部
39 ヒータ制御手段
40 時刻認識手段
45 モード切替スイッチ
DESCRIPTION OF SYMBOLS 1 Hot water storage tank unit 5 Remote control 36 Freezing prevention heater 37 Temperature sensor 38 Hot-water supply control part 39 Heater control means 40 Time recognition means 45 Mode change switch

Claims (4)

筐体内に湯水の配管類を備え、凍結防止のために前記配管類を加熱する凍結防止ヒータと、前記筐体内の温度を検出する温度センサと、この温度センサの値に応じて前記凍結防止ヒータの通電を行う制御装置を備えた給湯装置に於いて、運転停止や時刻の設定等を行う操作部を設け、前記制御装置には時刻認識手段を備えると共に、現在時刻に応じて前記凍結防止ヒータの作動温度が異なるヒータ制御手段を備え、前記ヒータ制御手段は、時刻Aから時刻Bまでの夜間の前記凍結防止ヒータをOFFする温度より前記時刻Bから前記時刻Aまでの昼間の前記凍結防止ヒータをOFFする温度の方を低くした事を特徴とする給湯装置。 An anti-freezing heater provided with hot and cold piping in the housing for heating the piping to prevent freezing, a temperature sensor for detecting the temperature in the housing, and the anti-freezing heater according to the value of the temperature sensor in the hot water supply device provided with a control device for performing energization of an operation unit for performing setting of shutdown and time provided, Rutotomoni includes a time recognition means to the control device, the antifreeze according to the current time Heater control means having different heater operating temperatures is provided , and the heater control means is configured to prevent freezing in the daytime from the time B to the time A from the temperature at which the antifreeze heater is turned off at night from the time A to the time B. A hot water supply apparatus characterized by lowering the temperature at which the heater is turned off . 給水管と給湯管が接続され湯水を貯湯する貯湯タンクを内部に備えた貯湯タンクユニットと、前記貯湯タンク内の湯水を加熱する加熱手段と、凍結防止のために貯湯タンク内の配管類を加熱する凍結防止ヒータと、前記貯湯タンクユニット内の温度を検出する温度センサと、この温度センサの値に応じて前記凍結防止ヒータの通電を行う制御装置を備えた貯湯式給湯装置に於いて、運転停止や時刻の設定等を行う操作部を設け、前記制御装置には時刻認識手段を備えると共に、現在時刻に応じて前記凍結防止ヒータの作動温度が異なるヒータ制御手段を備え、前記ヒータ制御手段は、時刻Aから時刻Bまでの夜間の前記凍結防止ヒータをOFFする温度より前記時刻Bから前記時刻Aまでの昼間の前記凍結防止ヒータをOFFする温度の方を低くした事を特徴とする貯湯式給湯装置。 A hot water storage tank unit having a hot water storage tank for storing hot water connected to the hot water supply pipe and the hot water supply pipe, heating means for heating the hot water in the hot water storage tank, and piping in the hot water storage tank for freezing prevention An anti-freezing heater, a temperature sensor for detecting a temperature in the hot water storage tank unit, and a hot water storage type hot water supply apparatus including a controller for energizing the anti-freezing heater according to a value of the temperature sensor an operation unit for performing setting of stop and time provided, Rutotomoni includes a time recognition means to said control device, comprising a heater control means for operating temperature is different of the antifreeze heater in accordance with the current time, the heater control means Is the temperature at which the antifreeze heater is turned off in the daytime from the time B to the time A than the temperature at which the antifreeze heater is turned off at night from the time A to the time B. Hot water storage type hot water supply apparatus according to claim Kushida thing. 前記ヒータ制御手段にて現在時刻が夜の時刻Aから朝の時刻Bまでの間は、前記凍結防止ヒータは温度センサの値が所定温度T1でONし、所定温度T1より高い所定温度T2でOFFする通電制御を行い、朝の時刻Bから夜の時刻Aまでの間は凍結防止ヒータは温度センサの値が前記所定温度T1でONし、所定温度T1と所定温度T2の間の所定温度T3でOFFする通電制御を行う制御装置を備えた請求項1または2記載の給湯装置。 During the period from the time A at night to the time B in the morning by the heater control means, the antifreeze heater is turned on at a predetermined temperature T1, and is turned off at a predetermined temperature T2 higher than the predetermined temperature T1. During the period from morning time B to night time A, the freeze prevention heater is turned on at the temperature sensor value at the predetermined temperature T1, and at a predetermined temperature T3 between the predetermined temperature T1 and the predetermined temperature T2. The hot-water supply apparatus of Claim 1 or 2 provided with the control apparatus which performs the electricity supply control which turns off. 前記操作部にて前記時刻Aまたは時刻Bを任意に変更可能な制御装置を備えた請求項1から3の何れか一項に記載の給湯装置。 The hot-water supply apparatus as described in any one of Claim 1 to 3 provided with the control apparatus which can change the said time A or the time B arbitrarily in the said operation part.
JP2005071512A 2005-03-14 2005-03-14 Water heater Expired - Fee Related JP4316521B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005071512A JP4316521B2 (en) 2005-03-14 2005-03-14 Water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005071512A JP4316521B2 (en) 2005-03-14 2005-03-14 Water heater

Publications (2)

Publication Number Publication Date
JP2006250504A JP2006250504A (en) 2006-09-21
JP4316521B2 true JP4316521B2 (en) 2009-08-19

Family

ID=37091192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005071512A Expired - Fee Related JP4316521B2 (en) 2005-03-14 2005-03-14 Water heater

Country Status (1)

Country Link
JP (1) JP4316521B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008261581A (en) * 2007-04-13 2008-10-30 Matsushita Electric Ind Co Ltd Hot water supply device
JP4967774B2 (en) * 2007-04-13 2012-07-04 パナソニック株式会社 Water heater
JP5853747B2 (en) * 2012-02-08 2016-02-09 三菱電機株式会社 Hot water storage water heater
JP7077258B2 (en) * 2019-03-18 2022-05-30 株式会社長府製作所 Hot water storage type hot water supply device

Also Published As

Publication number Publication date
JP2006250504A (en) 2006-09-21

Similar Documents

Publication Publication Date Title
JP4316521B2 (en) Water heater
JP2007285653A (en) Hot water supply device
JP4448488B2 (en) Hot water storage water heater
JP2009264617A (en) Heat pump water heater
JP4034254B2 (en) Hot water storage water heater
JP2009138980A (en) Heat pump type water heater
JP4005031B2 (en) Hot water storage water heater
JP2009074736A (en) Heat pump type hot water supply device
JP4705838B2 (en) Hot water storage water heater
JP6174482B2 (en) Hot water storage type heat pump water heater
JP2008045851A (en) Hot-water storage type hot water supply apparatus
JP4955375B2 (en) Hot water storage water heater
JP7011540B2 (en) Hot water storage type hot water supply device
JP4308187B2 (en) Hot water storage water heater
JP2009162415A (en) Hot water storage type water heater
JP2010014361A (en) Heat pump type water heater
JP5155094B2 (en) Hot water storage water heater
JP3987019B2 (en) Hot water storage water heater
JP4064332B2 (en) Hot water storage water heater
JP5329363B2 (en) Hot water storage water heater
JP2007024391A (en) Storage type hot water supply device
JP4094514B2 (en) Hot water storage water heater
JP5882790B2 (en) Bath equipment
JP2011163632A (en) Storage water heater
JP2005249264A (en) Hot-water storage type hot-water supply device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070731

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20081222

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090127

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090203

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090317

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090319

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: 20090519

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090520

R150 Certificate of patent or registration of utility model

Ref document number: 4316521

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120529

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120529

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130529

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130529

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140529

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees