JP2003014305A - Storage water heater - Google Patents
Storage water heaterInfo
- Publication number
- JP2003014305A JP2003014305A JP2001198162A JP2001198162A JP2003014305A JP 2003014305 A JP2003014305 A JP 2003014305A JP 2001198162 A JP2001198162 A JP 2001198162A JP 2001198162 A JP2001198162 A JP 2001198162A JP 2003014305 A JP2003014305 A JP 2003014305A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- time zone
- water storage
- heat source
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 167
- 238000009835 boiling Methods 0.000 claims abstract description 88
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000001932 seasonal effect Effects 0.000 claims description 22
- 230000005611 electricity Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 8
- 238000005086 pumping Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、季節別時間帯別の
料金制度における貯湯式給湯器の沸き上げ制御に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to boiling control of a hot water storage type water heater in a seasonal fee system.
【０００２】[0002]
【従来の技術】近年、消費電力の平準化を目的として、
各電力会社は一般家庭にも選択的に時間帯別料金制度を
採用している。この制度を利用すると従来の深夜電力の
み利用可能な電力契約制度に比べ、昼間時間帯も利用可
能となるため使い勝手の向上が図れるメリットを有する
が、深夜時間帯の２３時から翌朝７時までの電気料金が
大幅に安くなる代わりにそれ以外の昼間時間帯の料金が
割高になる。2. Description of the Related Art In recent years, for the purpose of leveling power consumption,
Each electric power company also selectively adopts a time-based charge system for ordinary households. Using this system has the merit of improving usability because it allows the use of daytime hours compared to the conventional power contract system that allows only late-night electricity, but from 23:00 in the middle of the night to 7:00 in the morning. Electricity charges will be significantly lower, but charges during other daytime hours will be higher.
【０００３】以下、従来の時間帯別電力契約制度に対応
した貯湯式給湯器について図６を用いて説明する。Hereinafter, a hot water storage type hot water supply device corresponding to a conventional power contract system according to time zones will be described with reference to FIG.
【０００４】図６において、１は貯湯タンク、２は貯湯
タンク１の上部に設けた出湯口、３は貯湯タンク１の下
部に設けた給水口、４は循環ポンプ、５はタンク１内の
湯水を加熱する沸上手段、６は循環ポンプ４と沸上手段
５で構成される熱源部、７は貯湯タンク１の下部に設け
た下部温度検出手段、８は現時刻を計時している時計、
９は時間帯判定部、１０は深夜時間帯制御部、１１は昼
間時間帯制御部、１２は温度判定部、１３は熱源駆動
部、１４は熱源制御部である。In FIG. 6, 1 is a hot water storage tank, 2 is a hot water outlet provided at an upper portion of the hot water storage tank 1, 3 is a water supply port provided at a lower portion of the hot water storage tank 1, 4 is a circulation pump, 5 is hot water in the tank 1. Heating means, a heat source portion 6 composed of a circulation pump 4 and a boiling means 5, 7 is a lower temperature detecting means provided in the lower portion of the hot water storage tank 1, 8 is a clock for measuring the current time,
Reference numeral 9 is a time zone determination unit, 10 is a midnight time zone control unit, 11 is a daytime time zone control unit, 12 is a temperature determination unit, 13 is a heat source drive unit, and 14 is a heat source control unit.
【０００５】上記のように構成された貯湯式給湯器は、
使用者がお湯を使用する度に出湯口２からお湯が排出さ
れ、同量の水が給水口３より供給されるものである。そ
して、お湯と水にある程度の温度差があれば、その境界
部分に混合層を形成することで、貯湯タンク１内の上部
がお湯、下部が水の状態を保ち、お互いが混ざることな
く出湯温度を安定した湯温で供給することができる。こ
の貯湯式給湯器の沸き上げ制御は、以下の手順で行われ
る。The hot water storage type water heater constructed as described above is
Each time the user uses hot water, the hot water is discharged from the hot water outlet 2 and the same amount of water is supplied from the water supply opening 3. If there is a certain temperature difference between the hot water and the water, a mixed layer is formed at the boundary so that the upper part of the hot water storage tank 1 keeps the hot water and the lower part of the hot water retains the state of water. Can be supplied at a stable hot water temperature. The boiling control of this hot water storage type water heater is performed in the following procedure.
【０００６】まず、時計８の時刻より時間帯判定部９が
現在の時間帯を判別する。そして、その時間帯が深夜時
間帯であれば深夜時間帯制御部１０が選択され、昼間時
間帯であれば昼間時間帯制御部１１が選択される。つま
り、従来の時間帯別料金制度では時間帯判定部９は深夜
時間帯か昼間時間帯かを判定し、この昼間時間帯制御部
１１が選択されているとき、下部温度検出手段７より検
出された温度が温度判定部１２にて所定温度以下である
ことが判別されると、熱源駆動部１３が熱源部６の制御
を行い沸き上げが開始される。沸き上げ制御は、循環ポ
ンプ４が貯湯タンク１の下部の水を上部へ汲み上げ、汲
み上げられた水が沸上手段５にて加熱されることで行わ
れる。First, the time zone determination unit 9 determines the current time zone from the time of the clock 8. If the time zone is the midnight time zone, the midnight time zone control unit 10 is selected, and if it is the daytime time zone, the daytime time zone control unit 11 is selected. That is, in the conventional time zone charge system, the time zone determination unit 9 determines whether it is a midnight time zone or a daytime time zone, and when the daytime time zone control section 11 is selected, the lower temperature detection means 7 detects the time zone. When the temperature determination unit 12 determines that the temperature is equal to or lower than the predetermined temperature, the heat source drive unit 13 controls the heat source unit 6 to start boiling. The boiling control is performed by the circulation pump 4 pumping the water in the lower part of the hot water storage tank 1 to the upper part, and the pumped water is heated by the boiling means 5.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、各電力
会社は近年において従来の昼間時間帯をさらに細かく区
切って、各時間帯毎に電気料金に格差を持たせた季節別
時間帯別料金制度を採用している。この季節別時間帯別
料金制度において、従来の貯湯式給湯器の沸き上げ制御
を用いると、季節別時間帯別の昼時間帯であるときも、
下部温度検出手段より検出された温度が温度判定部にて
所定温度以下であることが判別されると、熱源駆動部が
熱源部の制御を行い沸き上げが開始されてしまう。ここ
で、季節別時間帯別の電力契約とは次のような内容のも
のを指している。深夜時間帯は昼間時間帯に比べ安い電
気料金が設定されていて料金格差を設けているが、昼間
時間帯においても更に時間帯を区切り電気料金の格差を
設けているものである。昼間時間帯も頻繁にお湯が使用
される期間の電気料金を安くし、逆にあまりお湯が使用
されない時間帯を高くしている。このあまりお湯が使わ
れない時間帯を昼時間帯と呼び、例えば１０時から１７
時に設定されているものである。よって、従来の沸き上
げ制御により昼時間帯に無条件に沸き上げが開始される
と、使用者が意図していない割高の電気料金を支払わな
ければならないという課題があった。However, in recent years, each electric power company has adopted a seasonal time zone charge system that divides the conventional daytime time zone into smaller pieces and gives a difference in the electricity rate for each time zone. is doing. In this seasonal time zone charge system, by using the boiling control of the conventional hot water storage type water heater, even when it is the daytime zone according to the season time zone,
If the temperature determination unit determines that the temperature detected by the lower temperature detection unit is equal to or lower than the predetermined temperature, the heat source drive unit controls the heat source unit to start boiling. Here, the power contracts by season and time zone refer to the following contents. The midnight time zone is set at a lower electricity rate than the daytime zone and there is a price gap, but the daytime zone also divides the time zone to provide a gap in the electricity rate. In the daytime hours, the electricity rate is reduced during the period when hot water is frequently used, and conversely, the time when hot water is not used is raised. This time zone when hot water is not used so much is called the daytime zone, for example from 10:00 to 17
It is the one that is set at the time. Therefore, if the conventional boiling control unconditionally starts boiling in the daytime, there is a problem that the user has to pay a high electricity charge that the user does not intend.
【０００８】[0008]
【課題を解決するための手段】本発明は上記課題を解決
するために、季節別時間帯別料金制度におけるそれぞれ
の時間帯を判定する時間帯判定部を設け、この時間帯判
定部が昼間時間帯における割安な時間帯であると判定し
ている期間に、貯湯タンク内が所定温度以下であること
を下部温度検出手段が検出すれば熱源部による沸き上げ
制御を行い、それ以外の昼間時間帯であると判定してい
る期間は沸き上げ制御を行わないようにしている。In order to solve the above-mentioned problems, the present invention provides a time zone judging section for judging each time zone in the seasonal time zone-based charge system, and this time zone judging section is used for daytime hours. If the lower temperature detection means detects that the temperature inside the hot water storage tank is below the predetermined temperature during the period when it is determined that it is a cheap time zone, boiling control by the heat source is performed, and other daytime hours The boiling control is not performed during the period when it is determined to be.
【０００９】上記発明によれば、時間帯別判定部によっ
て判定された季節別時間帯別料金制度における割安な時
間帯に沸き上げ制御を選択して行わせることができるた
め、割高な昼間時間帯に下部温度検出手段が沸き上げ開
始条件である所定温度以下を検出しても、無条件に沸き
上げを開始することはなく、使用者が意図しない割高な
電気料金を支払うという問題を解消できる。According to the above invention, the boiling control can be selected and performed in a cheap time zone in the seasonal time zone charge system determined by the time zone determination unit. Even when the lower temperature detecting means detects the temperature equal to or lower than the predetermined temperature which is the boiling start condition, the boiling is not unconditionally started, and the problem that the user pays an expensive electricity charge unintended can be solved.
【００１０】[0010]
【発明の実施の形態】請求項１に記載した発明は、貯湯
タンクと、前記貯湯タンク内の湯水を沸き上げる熱源部
と、貯湯タンク下部に配置された下部温度検出手段と、
季節別時間帯別料金制度におけるそれぞれの時間帯を判
定する時間帯判定部とを備え、前記時間帯判定部が季節
別時間帯別の朝時間帯・晩時間帯であると判定している
期間は、貯湯タンク内が所定温度以下であることを下部
温度検出手段が検出すれば、熱源部による沸き上げ制御
を行い、昼時間帯であると判定している期間は、貯湯タ
ンク内が前記所定温度以下であることを下部温度検出手
段が検出しても、熱源部による沸き上げ制御を行わない
ようにしたものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention described in claim 1 is a hot water storage tank, a heat source part for boiling up hot water in the hot water storage tank, and a lower temperature detecting means arranged at a lower part of the hot water storage tank.
A time period determination section that determines each time zone in the seasonal time zone charge system, and the time zone determination section determines that the time zone is the morning time zone or the evening time zone If the lower temperature detecting means detects that the temperature inside the hot water storage tank is below a predetermined temperature, the heating source controls the boiling up, and during the daytime it is determined that the hot water storage tank has the predetermined temperature. Even if the lower temperature detecting means detects that the temperature is lower than the temperature, the boiling control by the heat source is not performed.
【００１１】そして、季節別時間帯別料金制度の昼時間
帯に下部温度検出手段が沸き上げ開始条件である所定温
度以下を検出した場合でも、無条件に沸き上げを開始す
ることはなく、使用者が意図しない高額の電気料金を支
払うという問題が解消できる。Even when the lower temperature detecting means detects a temperature lower than a predetermined temperature which is a boiling start condition during the daytime of the seasonal time zone charge system, the boiling is not unconditionally started and it is used. It is possible to solve the problem that a person pays a large amount of electricity that is not intended.
【００１２】また、請求項２に記載した発明は、貯湯タ
ンク外の上部に配置された上部温度検出手段を備え、時
間帯判定部が季節別時間帯別の昼時間帯であると判定し
ている期間でも、貯湯タンク内が所定温度以下であるこ
とを上部温度検出手段が検出すれば、熱源部による沸き
上げ制御を行うようにしたものである。Further, the invention according to claim 2 is provided with an upper temperature detecting means arranged at an upper part outside the hot water storage tank, and the time zone judging section judges that it is a daytime zone according to a seasonal time zone. Even when the hot water storage tank is at a predetermined temperature or lower, the upper temperature detecting means detects the boiling temperature by the heat source section.
【００１３】そして、季節別時間帯別料金制度の昼時間
帯においても、上部温度検出手段が貯湯タンク内の残湯
が残り少なくなったことを検出すると、沸き上げ制御を
開始させ、湯切れの発生を防止することができる。Even in the daytime of the seasonal time zone charge system, when the upper temperature detecting means detects that the amount of remaining hot water in the hot water storage tank is low, the boiling control is started and the hot water runs out. Can be prevented.
【００１４】また、請求項３に記載した発明は、上部温
度検出手段が所定温度以下を検出して熱源部による沸き
上げ制御を開始したとき、上部温度検出手段が前記所定
温度より高い所定温度を検出した時点で沸き上げ制御を
停止するようにしたものである。According to the third aspect of the present invention, when the upper temperature detecting means detects a predetermined temperature or lower and starts boiling control by the heat source section, the upper temperature detecting means sets a predetermined temperature higher than the predetermined temperature. The boiling control is stopped at the time of detection.
【００１５】そして、上部温度検出手段が貯湯タンク内
の残湯が残り少なくなったことを検出し、沸き上げ制御
を開始させたとき、この沸き上げ開始条件の所定温度よ
り高い所定温度を検出した時点で沸き上げ制御を停止す
るようにしているため、湯切れを防止する湯量を確保す
ると共に、昼時間帯に必要以上の沸き上げ制御を行わ
ず、電気料金の増大を防ぐことができる。When the upper temperature detecting means detects that the amount of remaining hot water in the hot water storage tank is low and starts the boiling control, when a predetermined temperature higher than the predetermined temperature of the boiling start condition is detected. Since the boiling control is stopped at 1, the amount of hot water that prevents running out of water can be ensured, and unnecessary increase of the boiling control during the daytime can be prevented to prevent an increase in the electricity charge.
【００１６】また、請求項４に記載した発明は、上部温
度検出手段が所定温度以下を検出して熱源部による沸き
上げ制御を開始したとき、所定時間経過時点で沸き上げ
制御を停止するようにしたものである。Further, according to the invention described in claim 4, when the upper temperature detecting means detects a temperature equal to or lower than a predetermined temperature and starts the boiling control by the heat source section, the boiling control is stopped when a predetermined time elapses. It was done.
【００１７】そして、上部温度検出手段が貯湯タンク内
の残湯が残り少なくなったことを検出したとき、沸き上
げ時間を制限して沸き上げ制御を行うようにしているた
め、必要最小限の沸き上げ動作を確保することができ、
湯切れを防止する湯量を確保すると共に、昼時間帯に必
要以上の沸き上げ制御を行わず、電気料金の増大を防ぐ
ことができる。When the upper temperature detecting means detects that the amount of remaining hot water in the hot water storage tank is low, the boiling time is limited and the boiling control is carried out. Operation can be secured,
It is possible to secure an amount of hot water to prevent running out of hot water, and prevent an increase in electricity charges without performing unnecessary boiling control during the daytime.
【００１８】また、請求項５に記載した発明は、上部温
度検出手段より下部に配置された中部温度検出手段を備
え、上部温度検出手段が所定温度以下を検出して熱源部
による沸き上げ制御を開始したとき、中部温度検出手段
が所定温度以上を検出した時点で沸き上げ制御を停止す
るようにしたものである。Further, the invention according to claim 5 is provided with a middle temperature detecting means disposed below the upper temperature detecting means, and the upper temperature detecting means detects a temperature equal to or lower than a predetermined temperature to control boiling up by the heat source section. When starting, the boiling temperature control is stopped when the middle temperature detecting means detects a temperature equal to or higher than a predetermined temperature.
【００１９】そして、所定の残湯量が確保できる位置に
配した温度検出手段を用いて沸き上げ制御の開始と停止
を行うようにしているため、確実に湯切れを防止する湯
量を確保することができ、かつ昼時間帯における効果的
な沸き上げ制御を行うことができる。Since the boiling control is started and stopped by using the temperature detecting means arranged at a position where a predetermined amount of remaining hot water can be secured, it is possible to reliably secure a sufficient amount of hot water to prevent hot water shortage. In addition, the boiling control can be performed effectively during the daytime.
【００２０】また、請求項６に記載した発明は、過去の
使用状況から今日の必要湯量を算出する必要湯量演算部
を備え、必要湯量演算部にて昼時間帯終了後の沸き上げ
制御では必要湯量が得られないことが判定されると、時
間帯判定部が季節別時間帯別の昼時間帯であると判定し
ている期間でも、貯湯タンク内が所定温度以下であるこ
とを下部温度検出手段が検出すれば、熱源部による沸き
上げ制御を行うようにしたものである。Further, the invention according to claim 6 is provided with a required hot water amount calculation unit for calculating the required hot water amount today based on past usage conditions, and is required for the boiling control after the end of the daytime period in the required hot water amount calculation unit. If it is determined that the amount of hot water cannot be obtained, it is detected that the temperature inside the hot water storage tank is below the predetermined temperature even during the period when the time zone determination unit determines that it is the daytime zone according to the seasonal time zone. If the means detects it, the boiling control by the heat source unit is performed.
【００２１】そして、昼時間帯においても必要湯量を確
保するための沸き上げ制御を自動的に開始することがで
きるため、湯切れを自動的に防止することができ、快適
な給湯ライフを実現することができる。Since the boiling control for securing the required amount of hot water can be automatically started even during the daytime, hot water can be automatically prevented and a comfortable hot water supply life can be realized. be able to.
【００２２】また、請求項７に記載した発明は、熱源部
への制御を要求する熱源部制御要求手段を備え、使用者
が前記熱源部制御要求手段から要求を行ったとき、時間
帯判定部が季節別時間帯別の昼時間帯であると判定して
いる期間でも、貯湯タンク内が所定温度以下であること
を下部温度検出手段が検出すれば、熱源部による沸き上
げ制御を行うようにしたものである。Further, the invention according to claim 7 is provided with heat source part control requesting means for requesting control to the heat source part, and when the user makes a request from the heat source part control requesting means, the time zone judging part Even if it is determined that it is during the daytime zone according to the seasonal time zone, if the lower temperature detection means detects that the temperature inside the hot water storage tank is below the predetermined temperature, the boiling control by the heat source section is performed. It was done.
【００２３】そして、昼時間帯においても、使用者が自
らの意思で沸き上げ制御を開始することができる。よっ
て、過去の使用状況から今日の必要湯量を自動判別して
いる場合の予測できない必要湯量を使用者の意思で確保
することができ、湯切れを意識的に防止することがで
き、快適な給湯ライフを実現することができる。Then, even during the daytime, the user can start the boiling control by his / her own will. Therefore, it is possible to secure an unpredictable required amount of hot water when the required amount of hot water for today is automatically determined based on the past usage conditions, and it is possible to intentionally prevent running out of the hot water and to provide a comfortable hot water supply. Life can be realized.
【００２４】[0024]
【実施例】以下、本発明の実施例について図面を用いて
説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００２５】（実施例１）図１は本発明の実施例１にお
ける貯湯式給湯器の構成図である。(Embodiment 1) FIG. 1 is a configuration diagram of a hot water storage type hot water supply apparatus according to Embodiment 1 of the present invention.
【００２６】２０は貯湯タンク、２１は貯湯タンク２０
の上部に設けた出湯口、２２は貯湯タンク２０の下部に
設けた給水口、２３は循環ポンプ、２４はタンク２０内
の湯水を加熱する沸上手段、２５は循環ポンプ２３と沸
上手段２４で構成される熱源部、２６は貯湯タンク２０
の上部に配置された上部温度検出手段、２７は上部温度
検出手段２６より下部に配置された中部温度検出手段、
２８は貯湯タンク２０の下部に配置された下部温度検出
手段、２９は現時刻を計時している時計、３０は時間帯
判定部、３１は深夜時間帯制御部、３２は朝時間帯制御
部、３３は昼時間帯制御部、３４は晩時間帯制御部、３
５は温度判定部、３６は熱源駆動部、３７は時計２９と
時間帯判定部３０と深夜時間帯制御方式３１と朝時間帯
制御方式３２と昼時間帯制御方式３３と晩時間帯制御方
式３４と温度判定部３５と熱源駆動部３６から構成され
ている熱源制御部、３８は電力制度選択部である。Reference numeral 20 is a hot water storage tank, and 21 is a hot water storage tank 20.
, 22 is a water supply port provided in the lower part of the hot water storage tank 20, 23 is a circulation pump, 24 is a boiling means for heating hot water in the tank 20, 25 is a circulation pump 23 and 24 Is a heat source part, and 26 is a hot water storage tank 20.
An upper temperature detecting means disposed on the upper side of the upper part, a reference numeral 27 indicates a middle part temperature detecting means disposed below the upper temperature detecting means 26,
28 is a lower temperature detection means arranged at the lower part of the hot water storage tank 20, 29 is a clock for measuring the current time, 30 is a time zone determination section, 31 is a midnight time zone control section, 32 is a morning time zone control section, 33 is a daytime control section, 34 is an evening control section, 3
5 is a temperature determination unit, 36 is a heat source drive unit, 37 is a clock 29, a time zone determination unit 30, a midnight time zone control system 31, a morning time zone control system 32, a daytime zone control system 33, and an evening time zone control system 34. A heat source control unit, which is composed of a temperature determination unit 35 and a heat source drive unit 36, and a power system selection unit 38.
【００２７】この貯湯式給湯器は使用者がお湯を使用す
る度に出湯口２１からお湯が排出され、同量の水が給水
口２２より給水されるものであり、貯湯タンク２０の上
部に高温水、下部に低温水が成層状態で貯湯される。沸
き上げ動作は循環ポンプ２３により下部の低温水を汲み
上げ沸上手段２４で加熱して貯湯タンク２０の上部より
貯湯していく。This hot water storage type hot water dispenser discharges hot water from the hot water outlet 21 every time the user uses hot water, and supplies the same amount of water from the hot water supply port 22. Water and low-temperature water are stored in a stratified state at the bottom. In the boiling operation, low-temperature water in the lower part is pumped up by the circulation pump 23 and heated by the boiling means 24 to store hot water from the upper part of the hot water storage tank 20.
【００２８】次に、沸き上げ制御について説明する。ま
ず、時計２９の時刻より時間帯判定部３０が現在の時間
帯を判別する。このとき例えば、図２に示すように季節
別時間帯別料金制度の時間帯区分として、深夜時間帯は
２３時〜翌朝７時とし、昼間時間帯の中で朝時間帯は７
時〜１０時、昼時間帯は１０時〜１７時、晩時間帯は１
７時〜２３時とし、深夜時間帯が料金が最も安く、朝時
間帯と晩時間帯が次に安く、昼時間帯が料金が割高とす
る。Next, the boiling control will be described. First, the time zone determination unit 30 determines the current time zone from the time of the clock 29. At this time, for example, as shown in FIG. 2, as the time zone classification of the seasonal time zone charge system, the midnight time zone is from 23:00 to the next morning 7:00, and the morning time zone is 7 hours in the daytime zone.
Hours to 10:00, daytime 10:00 to 17:00, evening hours 1
From 7:00 to 23:00, the price is lowest at midnight, next cheaper at morning and late hours, and more expensive at daytime.
【００２９】時計２９の時刻が深夜時間帯であれば深夜
時間帯制御部３１が選択され、朝時間帯であれば朝時間
帯制御部３２が選択され、昼時間帯であれば昼時間帯制
御部３３が選択され、晩時間帯であれば晩時間帯制御部
３４が選択される。If the time of the clock 29 is the midnight time zone, the midnight time zone control unit 31 is selected, if it is the morning time zone, the morning time zone control unit 32 is selected, and if it is the daytime zone, the daytime zone control is performed. The section 33 is selected, and in the evening time zone, the evening time zone control section 34 is selected.
【００３０】電力制度選択部３８では、季節別時間帯別
電力契約か、時間帯別電力契約かを選択し設定すること
ができる。時間帯別電力契約の場合、昼間時間帯の電気
料金は深夜電力料金に比べ格差を設けているため割高で
あるが、一定料金が設定されている。一方、季節別時間
帯電力契約の場合は、昼間時間帯においても更に時間帯
を区切り電気料金の格差が設けられている。昼間時間帯
も頻繁にお湯が使用される期間の電気料金を安くし、逆
にあまりお湯が使用されない時間帯を高くしている。こ
のあまりお湯が使われない時間帯を昼時間帯と呼んでい
る。In the power system selecting section 38, it is possible to select and set a seasonal time zone power contract or a time zone power contract. In the case of hourly electricity contracts, the electricity charges during the daytime hours are relatively high compared to the late-night electricity charges, but they are set at a fixed rate. On the other hand, in the case of the seasonal time zone electric power contract, even in the daytime time zone, the time zone is further divided and a difference in the electric charge is provided. In the daytime hours, the electricity rate is reduced during the period when hot water is frequently used, and conversely, the time when hot water is not used is raised. This time zone when hot water is not used is called the daytime zone.
【００３１】このとき時間帯が昼間時間帯で朝時間帯制
御部３２、又は昼時間帯制御部３３、又は晩時間帯制御
部３４が選択されていて、かつ電力制度選択部３８にて
時間帯別電力契約が選択されていれば、下部温度検出手
段２８より検出された温度が温度判定部３４にて所定温
度以下であることが判別されたとき、熱源駆動部３６が
熱源部２５の制御を行い、沸き上げが開始される。At this time, the time zone is the daytime zone, the morning time zone control section 32, the daytime zone control section 33, or the evening time zone control section 34 is selected, and the power system selecting section 38 selects the time zone. If another power contract is selected, the heat source drive unit 36 controls the heat source unit 25 when the temperature determination unit 34 determines that the temperature detected by the lower temperature detection unit 28 is equal to or lower than the predetermined temperature. The boiling is started.
【００３２】一方、電力制度選択部３８にて季節別時間
帯別電力契約が選択されているときは、時間帯が昼間時
間帯で朝時間帯制御部３２、又は晩時間帯制御部３４が
選択されていれば、下部温度検出手段２８より検出され
た温度が温度判定部３４にて所定温度以下であることが
判別されたとき、熱源駆動部３６が熱源部２５の制御を
行い、沸き上げが開始される。そして、時間帯が昼間時
間帯で昼時間帯制御部３３が選択されていれば、下部温
度検出手段２８より検出された温度が温度判定部３５に
て所定温度以下であることが判別されても、熱源駆動部
３６が熱源部２５の制御を行うことはなく、沸き上げが
開始されることはない。On the other hand, when the seasonal power contract is selected by the power system selecting section 38, the time zone is the daytime zone and the morning time zone control section 32 or the evening time zone control section 34 selects. If so, when the temperature detected by the lower temperature detection means 28 is determined by the temperature determination unit 34 to be equal to or lower than the predetermined temperature, the heat source drive unit 36 controls the heat source unit 25 to raise the boiling point. Be started. If the time zone is the daytime zone and the daytime zone control unit 33 is selected, the temperature determination unit 35 determines that the temperature detected by the lower temperature detection unit 28 is equal to or lower than the predetermined temperature. The heat source drive unit 36 does not control the heat source unit 25, and boiling is not started.
【００３３】また、電力制度選択部３８にて季節別時間
帯別電力契約が選択されているときで、時間帯が昼間時
間帯で昼時間帯制御部３３が選択されているときでも、
湯切れ防止のため次の制御を行う。使用者により連続し
て出湯された場合、貯湯タンク２０内の残湯が少なくな
ったことを、上部温度検出手段２６が所定温度以下を検
知したことにより温度判定部３５が判断すると、熱源駆
動部３６が熱源部２５の制御を行うことで、沸き上げを
開始させる。沸き上げ制御は、循環ポンプ２３が貯湯タ
ンク１の下部の水を上部へ汲み上げ、汲み上げられた水
が沸上手段２４にて加熱されることで行われる。Further, even when the seasonal power contract by season is selected in the power system selecting unit 38 and the time period is daytime and the daytime control unit 33 is selected,
The following controls are performed to prevent running out of hot water. When the user continuously discharges hot water, the temperature determination unit 35 determines that the amount of remaining hot water in the hot water storage tank 20 has decreased, when the upper temperature detection unit 26 detects a temperature equal to or lower than a predetermined temperature, and the heat source drive unit. 36 controls the heat source unit 25 to start boiling. The boiling control is performed by the circulation pump 23 pumping the water in the lower part of the hot water storage tank 1 to the upper part, and the pumped water is heated by the boiling means 24.
【００３４】また、上部温度検出手段２６が貯湯タンク
２０内の残湯が残り少なくなったことを検出し、沸き上
げ制御を開始させたときの沸き上げ制御を停止させる第
１の停止条件として、この沸き上げ開始条件の所定温度
より更に高い所定温度を検出した時点で沸き上げ制御を
停止させている。The upper temperature detecting means 26 detects that the amount of remaining hot water in the hot water storage tank 20 is low, and the boiling control is stopped when the boiling control is started. The boiling control is stopped when a predetermined temperature higher than the predetermined temperature of the boiling start condition is detected.
【００３５】また、その他に第２の停止条件として、所
定時間経過時点で沸き上げ制御を停止させても良い。In addition, as the second stop condition, the boiling control may be stopped when a predetermined time has elapsed.
【００３６】また、その他に第３の停止条件として、中
部温度検出手段２７が所定温度以上を検出した時点で沸
き上げ制御を停止させても良い。In addition to the above, as a third stop condition, the boiling control may be stopped when the middle temperature detecting means 27 detects a predetermined temperature or higher.
【００３７】また、図３において、３９は必要湯量演算
部である。Further, in FIG. 3, reference numeral 39 is a required hot water amount calculation unit.
【００３８】必要湯量演算部３９は過去の湯量の使用状
況から今日の必要湯量を演算する機能を備えている。よ
って、電力制度選択部３８にて季節別時間帯別電力契約
が選択されているときで、時間帯が昼間時間帯で昼時間
帯制御部３３が選択されているときでも、以下の制御を
行う。The required amount of hot water calculation unit 39 has a function of calculating the required amount of hot water today from the past usage state of the amount of hot water. Therefore, the following control is performed even when the power contract is selected by the power system selecting section 38 and the time zone is the daytime zone and the daytime zone control section 33 is selected. .
【００３９】通常、下部温度検出手段２８より検出され
た温度が温度判定部３５にて所定温度以下であることが
判別されても、熱源駆動部３６が熱源部２５の制御を行
うことはなく、沸き上げ制御が開始されることはない。
しかし、現在の貯湯タンク２０内の残湯量と今日の必要
湯量を比較し、晩時間帯になって沸き上げ制御が開始さ
れても、必要湯量が確保できないと判断したときは、沸
き上げ制御を開始させ、湯切れを防止する。Normally, even if the temperature determination section 35 determines that the temperature detected by the lower temperature detection means 28 is lower than the predetermined temperature, the heat source drive section 36 does not control the heat source section 25. The boiling control is never started.
However, the current amount of hot water in the hot water storage tank 20 is compared with the amount of hot water required today, and when it is determined that the required amount of hot water cannot be secured even if the boiling control is started during the evening hours, the boiling control is performed. Start and prevent hot water shortage.
【００４０】また、図４において、４０は熱源部制御要
求手段である。Further, in FIG. 4, reference numeral 40 denotes a heat source section control requesting means.
【００４１】熱源部制御要求手段４０は、電力制度契約
の選択状況、そのときの時間帯に関係なく、使用者の操
作により強制的に沸き上げ制御を開始させる機能を備え
ている。よって、電力制度選択部３８にて季節別時間帯
別電力契約が選択されているときで、時間帯が昼間時間
帯で昼時間帯制御部３３が選択されているときでも、次
の制御を行う。通常、下部温度検出手段２８より検出さ
れた温度が温度判定部３５にて所定温度以下であること
が判別されても、熱源駆動部３６が熱源部２５の制御を
行うことはなく、沸き上げ制御が開始されることはな
い。しかし、使用者が熱源部制御要求手段４０から沸き
上げ制御の要求を行ったとき、沸き上げ制御を開始さ
せ、湯切れを防止する。The heat source unit control requesting means 40 has a function of forcibly starting the boiling control by the operation of the user regardless of the selection status of the power system contract and the time zone at that time. Therefore, the following control is performed even when the power contract is selected by the power system selecting section 38 and the time zone is the daytime zone and the daytime zone control section 33 is selected. . Normally, even if the temperature determination unit 35 determines that the temperature detected by the lower temperature detection unit 28 is equal to or lower than the predetermined temperature, the heat source drive unit 36 does not control the heat source unit 25 and the boiling control is performed. Will never be started. However, when the user makes a request for boiling control from the heat source control requesting means 40, the boiling control is started to prevent running out of hot water.
【００４２】（実施例２）図５は、本発明の実施例２の
貯湯式給湯器の構成図である。(Embodiment 2) FIG. 5 is a block diagram of a hot water storage type water heater according to Embodiment 2 of the present invention.
【００４３】実施例１と異なる点は、沸上手段２４を貯
湯タンク２０の下部貯湯水を汲み上げる循環ポンプ２３
の汲み上げ経路２３ａに設けた点であり、沸き上げ手段
としては、ヒータあるいはヒートポンプ等を用いて実施
することができる。動作・作用については、実施例１と
同じであり、説明は省略する。A different point from the first embodiment is that the circulating pump 23 for pumping the boiling water from the lower boiling water of the hot water storage tank 20 by the boiling means 24.
This is a point provided in the pumping path 23a, and a heater, a heat pump, or the like can be used as the boiling means. The operation / action is the same as that of the first embodiment, and the explanation is omitted.
【００４４】[0044]
【発明の効果】以上のように、本発明の貯湯式給湯器
は、季節別時間帯別料金制度において、時間帯判定部に
よって判定された季節別時間帯別料金制度における割安
な時間帯に沸き上げ制御を選択して行わせることができ
るため、割高な昼間時間帯に下部温度検出手段が沸き上
げ開始条件である所定温度以下を検出しても、無条件に
沸き上げを開始することはなく、使用者が意図しない割
高な電気料金を支払うという問題を解消できる。As described above, the hot water storage type hot water supply device of the present invention is boiled in a cheap time zone in the seasonal time zone charge system determined by the time zone determination unit in the seasonal time zone charge system. Since the raising control can be selected and performed, even if the lower temperature detection means detects a temperature equal to or lower than the predetermined temperature as the boiling start condition during the expensive daytime period, the boiling is not unconditionally started. , It is possible to solve the problem that the user pays an expensive electricity charge that is not intended.
【００４５】また、湯切れ状態の恐れがあるときは、必
要最小限の湯量を確保するように沸き上げ制御を行うた
め、湯切れの心配もなく、電気料金への負担も軽減でき
るものである。Further, when there is a risk of running out of hot water, the boiling control is performed so as to secure the necessary minimum amount of hot water, so there is no concern of running out of hot water, and the burden on the electricity charges can be reduced. .
【図１】本発明の実施例１における貯湯式給湯器の構成
図FIG. 1 is a configuration diagram of a hot water storage type water heater according to a first embodiment of the present invention.
【図２】季節別時間帯別料金制度における時間帯区分を
示す図[Fig. 2] Diagram showing time zone classification in the seasonal time zone charge system
【図３】同貯湯式給湯器の構成図FIG. 3 is a configuration diagram of the hot water storage type water heater.
【図４】同貯湯式給湯器の構成図FIG. 4 is a configuration diagram of the hot water storage type water heater.
【図５】本発明の実施例２における貯湯式給湯器の構成
図FIG. 5 is a configuration diagram of a hot water storage type water heater according to a second embodiment of the present invention.
【図６】従来の貯湯式給湯器の構成図FIG. 6 is a configuration diagram of a conventional hot water storage type water heater.
２０ 貯湯タンク ２５ 熱源部 ２６ 上部温度検出手段 ２７ 中部温度検出手段 ２８ 下部温度検出手段 ２９ 時計 ３０ 時間帯判定部 ３９ 必要湯量判定部 ４０ 熱源部制御要求手段 20 Hot water storage tank 25 heat source 26 Upper temperature detection means 27 Central temperature detection means 28 Lower temperature detection means 29 clock 30-hour zone determination section 39 Required hot water amount determination unit 40 Heat Source Control Request Means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 櫛田 慎治 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 堀内 敏弘 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 両角 英樹 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Shinji Kushida 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Sangyo Co., Ltd. (72) Inventor Toshihiro Horiuchi 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Sangyo Co., Ltd. (72) Inventor Hideki Ryozumi 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Sangyo Co., Ltd.
Claims (7)
を沸き上げる熱源部と、貯湯タンク下部に配置された下
部温度検出手段と、季節別時間帯別料金制度におけるそ
れぞれの時間帯を判定する時間帯判定部とを備え、前記
時間帯判定部が季節別時間帯別の朝時間帯・晩時間帯で
あると判定している期間は、貯湯タンク内が所定温度以
下であることを下部温度検出手段が検出すれば、熱源部
による沸き上げ制御を行い、昼時間帯であると判定して
いる期間は、貯湯タンク内が前記所定温度以下であるこ
とを下部温度検出手段が検出しても、熱源部による沸き
上げ制御を行わないことを特徴とする貯湯式給湯器。1. A hot water storage tank, a heat source part for boiling hot water in the hot water storage tank, a lower temperature detecting means arranged at a lower part of the hot water storage tank, and each time zone in a seasonal time zone charge system is determined. When the time zone determination section determines that the time zone determination section is the morning time zone or the evening time zone according to the seasonal time zone, the lower temperature indicates that the temperature inside the hot water storage tank is below a predetermined temperature. If the detection means detects, the lower temperature detection means detects that the inside of the hot water storage tank is at or below the predetermined temperature during the period when it is determined that it is in the daytime zone by controlling the boiling by the heat source part. A hot water storage type hot water supply device characterized in that boiling control by a heat source is not performed.
出手段を備え、時間帯判定部が季節別時間帯別の昼時間
帯であると判定している期間中に、貯湯タンク内が所定
温度以下であることを上部温度検出手段が検出すれば、
熱源部による沸き上げ制御を行うことを特徴とした請求
項１記載の貯湯式給湯器。2. The inside of the hot water storage tank is provided with a predetermined temperature during the period when the time zone determination unit determines that it is a daytime zone according to the seasonal time zone, which is provided with an upper temperature detecting means arranged above the hot water storage tank. If the upper temperature detection means detects that
The hot water storage type water heater according to claim 1, wherein boiling control is performed by a heat source section.
して熱源部による沸き上げ制御を開始したとき、上部温
度検出手段が前記所定温度より高い所定温度を検出した
時点で沸き上げ制御を停止することを特徴とした請求項
２記載の貯湯式給湯器。3. When the upper temperature detecting means detects a predetermined temperature or lower and starts the boiling control by the heat source section, the boiling control is stopped when the upper temperature detecting means detects a predetermined temperature higher than the predetermined temperature. The hot water storage type water heater according to claim 2, wherein
して熱源部による沸き上げ制御を開始したとき、所定時
間経過時点で沸き上げ制御を停止することを特徴とした
請求項２記載の貯湯式給湯器。4. The hot water storage system according to claim 2, wherein when the upper temperature detecting means detects a temperature equal to or lower than a predetermined temperature and starts the boiling control by the heat source unit, the boiling control is stopped when a predetermined time elapses. Water heater.
中部温度検出手段を備え、上部温度検出手段が所定温度
以下を検出して熱源部による沸き上げ制御を開始したと
き、中部温度検出手段が所定温度以上を検出した時点で
沸き上げ制御を停止することを特徴とした請求項２記載
の貯湯式給湯器。5. The middle temperature detecting means is provided below the upper temperature detecting means, and when the upper temperature detecting means detects a temperature equal to or lower than a predetermined temperature and starts boiling control by the heat source, the middle temperature detecting means The hot water storage type water heater according to claim 2, wherein the boiling control is stopped when a temperature equal to or higher than a predetermined temperature is detected.
出する必要湯量演算部を備え、必要湯量演算部にて昼時
間帯終了後の沸き上げ制御では必要湯量が得られないと
判定されると、時間帯判定部が季節別時間帯別の昼時間
帯であると判定している期間でも、貯湯タンク内が所定
温度以下であることを下部温度検出手段が検出すれば、
熱源部による沸き上げ制御を行うことを特徴とした請求
項１記載の貯湯式給湯器。6. A required hot water amount calculation unit for calculating a required hot water amount today based on past usage conditions, wherein the required hot water amount calculation unit determines that the required hot water amount cannot be obtained by boiling control after the end of the daytime period. If the lower temperature detecting means detects that the temperature inside the hot water storage tank is equal to or lower than the predetermined temperature even during the period when the time zone determining unit determines that it is the daytime zone for each season and time zone,
The hot water storage type water heater according to claim 1, wherein boiling control is performed by a heat source section.
求手段を備え、使用者が前記熱源部制御要求手段から要
求を行ったとき、時間帯判定部が季節別時間帯別の昼時
間帯であると判定している期間中に、貯湯タンク内が所
定温度以下であることを下部温度検出手段が検出すれ
ば、熱源部による沸き上げ制御を行うことを特徴とした
請求項１記載の貯湯式給湯器。7. A heat source part control requesting means for requesting control to the heat source part is provided, and when the user makes a request from the heat source part control requesting means, the time zone determination part is a daytime for each season and time zone. The boiling control by the heat source unit is performed if the lower temperature detecting means detects that the temperature inside the hot water storage tank is below a predetermined temperature during the period when it is determined to be a band. Hot water storage type water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001198162A JP4048740B2 (en) | 2001-06-29 | 2001-06-29 | Hot water storage water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001198162A JP4048740B2 (en) | 2001-06-29 | 2001-06-29 | Hot water storage water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003014305A true JP2003014305A (en) | 2003-01-15 |
| JP4048740B2 JP4048740B2 (en) | 2008-02-20 |
Family
ID=19035652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001198162A Expired - Lifetime JP4048740B2 (en) | 2001-06-29 | 2001-06-29 | Hot water storage water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4048740B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008157509A (en) * | 2006-12-21 | 2008-07-10 | Mitsubishi Electric Corp | Hot water storage type hot water supply system |
| JP2013221720A (en) * | 2012-04-19 | 2013-10-28 | Panasonic Corp | Water heater |
| JP2014092288A (en) * | 2012-10-31 | 2014-05-19 | Mitsubishi Electric Corp | Hot water storage type water heater |
| JP2014119181A (en) * | 2012-12-17 | 2014-06-30 | Mitsubishi Electric Corp | Storage type water heater, and solar system |
-
2001
- 2001-06-29 JP JP2001198162A patent/JP4048740B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008157509A (en) * | 2006-12-21 | 2008-07-10 | Mitsubishi Electric Corp | Hot water storage type hot water supply system |
| JP2013221720A (en) * | 2012-04-19 | 2013-10-28 | Panasonic Corp | Water heater |
| JP2014092288A (en) * | 2012-10-31 | 2014-05-19 | Mitsubishi Electric Corp | Hot water storage type water heater |
| JP2014119181A (en) * | 2012-12-17 | 2014-06-30 | Mitsubishi Electric Corp | Storage type water heater, and solar system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4048740B2 (en) | 2008-02-20 |
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