Hot water storage system

JP2026097025APending Publication Date: 2026-06-16NORITZ CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
NORITZ CORP
Filing Date
2024-12-04
Publication Date
2026-06-16

AI Technical Summary

Benefits of technology

【0015】 上記の構成によれば、給湯設定温度とふろ設定温度の最大値が貯湯設定温度よりも高い温度に変更された場合には、その状態が設定短時間以上継続したときに貯湯設定温度を変更する。それ故、貯湯タンクの上層部に温度変更後の高い貯湯設定温度の湯水を貯湯することができるから、入浴者のニーズに適合させることができ、補助熱源機の作動頻度を小さくすることができる。 【発明の効果】

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Abstract

This hot water supply system provides a hot water storage system that reduces the frequency of insufficient hot water temperature and suppresses the operation of combustion-type auxiliary heat sources by setting a high responsiveness when raising the hot water storage temperature and a low responsiveness when lowering it. [Solution] In a hot water storage and hot water supply system (1) comprising a hot water storage tank (2), a heat source unit (4) for heating the hot water in the hot water storage tank (2), and an auxiliary heat source unit (5), the hot water supply set temperature during hot water supply and the bath set temperature during bath filling can be set. The hot water in the hot water storage tank (2) is heated by the heat source unit (4) based on the predicted heat amount and stored in the hot water storage tank (2). Regarding the hot water storage set temperature, which is the target temperature during hot water storage, if the predicted heat amount up to a predetermined time includes bath filling, the hot water storage set temperature is determined from the maximum values ​​of the hot water supply set temperature and the bath set temperature. If the predicted heat amount up to a predetermined time does not include bath filling, the hot water storage set temperature is determined from the hot water supply set temperature.
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Claims

1. In a hot water storage and supply system comprising a hot water storage tank, a heat source unit for heating the hot water in the storage tank, and an auxiliary heat source unit, The hot water supply temperature and the bath filling temperature can be set, and the hot water in the storage tank is heated by a heat source unit based on the predicted heat amount and stored in the storage tank. A hot water storage and supply system characterized in that, regarding the target temperature for hot water storage, if the predicted heat amount up to a predetermined time includes filling the bathtub, the hot water storage setting temperature is determined from the maximum values ​​of the hot water supply setting temperature and the bath setting temperature, and if the predicted heat amount up to a predetermined time does not include filling the bathtub, the hot water storage setting temperature is determined from the hot water supply setting temperature.

2. The hot water supply system according to claim 1, characterized in that if the maximum values ​​of the hot water supply setting temperature and the bath setting temperature are changed to a temperature lower than the hot water storage setting temperature, the hot water storage setting temperature is changed when that condition continues for a set time or longer.

3. The hot water supply system according to claim 2, characterized in that if the maximum values ​​of the hot water supply setting temperature and the bath setting temperature are changed to a temperature higher than the hot water storage setting temperature, the hot water storage setting temperature is changed when that condition continues for a set short time or longer.