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    • 4. 发明公开
    • HEAT MEDIUM SYSTEM
    • 热介质系统
    • EP3312515A1
    • 2018-04-25
    • EP15896406.4
    • 2015-09-24
    • Mitsubishi Electric Corporation
    • AKAGI, SatoshiMATSUMURA, YasunariWATANABE, Naoki
    • F24D3/00F24H1/00
    • F24D3/18F24D19/1012F24D19/1039F24D2200/04F24D2200/06F24D2200/08
    • A heating power of a main heat source (heating device) is controlled such that a main heat source outlet temperature (heating medium supply temperature) matches a first target temperature (Step S3103). The presence or absence of a sign of overshooting of the main heat source outlet temperature (heating medium supply temperature) is determined (Step S3104). In a case where it is determined that the sign of the overshooting is not present, an operation of a pump is controlled such that a circulation flow rate of a heating medium matches a target value (Step S3106). In a case where it is determined that the sign of the overshooting is present, the operation of the pump is controlled such that the main heat source outlet temperature (heating medium supply temperature) matches a second target temperature higher than the first target temperature (Step S3107).
    • 控制主热源(加热装置)的加热功率,使得主热源出口温度(加热介质供应温度)与第一目标温度匹配(步骤S3103)。 确定是否存在主热源出口温度(加热介质供应温度)的超调符号(步骤S3104)。 在判断为不存在过冲符号的情况下,控制泵的运转使得加热介质的循环流量与目标值一致(步骤S3106)。 在判断为过冲的征兆存在的情况下,控制泵的运转以使主热源出口温度(热媒供给温度)与比第一目标温度高的第二目标温度一致(步骤 S3107)。
    • 9. 发明公开
    • STORAGE WATER HEATER
    • HEISSWASSERSPEICHER
    • EP3147583A1
    • 2017-03-29
    • EP14892601.7
    • 2014-05-23
    • Mitsubishi Electric Corporation
    • SHIBAZAKI, NaokiSAKUMA, ToshiyukiWATANABE, NaokiKURITA, Satoshi
    • F24H1/18
    • F24H1/18F24D17/0078F24D17/02F24D19/1012F24D19/1054F24D2200/12Y02B30/745
    • A storage water heater capable of ensuring hot water supply temperature stability even if there is fluctuation in hot water supply-side flow rate is provided. The storage water heater includes: a hot water supply heat exchanger 52 for performing heat exchange between hot water in the hot water storage tank 8 and supply water; a hot water supply heat source conduit 46 that guides water from an upper portion of the hot water storage tank 8 to a lower portion of the hot water storage tank 8 via the hot water supply heat exchanger 52; a hot water supply heat source pump 48 that circulates water in the hot water supply heat source conduit 46, and a control section 36. In a hot water supply operation of heating supply water using a heat source that is the hot water in the hot water storage tank 8, the control section 36 performs PID control to calculate an output of a hot water supply heat source pump 48, the output bringing a heat source-side flow rate Fl, which is a flow rate of hot water flowing in the hot water supply heat source conduit 46, to a target flow rate Ftgt, for each control interval ΔTc. Here, the control section 36 sets the control interval ΔTc to be equal to the monitoring interval ΔTf when a hot water supply-side flow rate Fk is stable, and sets the control interval ΔTc to a control interval ΔTcmin, which is shorter than the monitoring interval ΔTf, when the hot water supply-side flow rate Fk rapidly fluctuates.
    • 提供一种能够确保热水供应温度稳定性的蓄热式热水器,即使在热水供给侧流量发生波动。 蓄热式热水器包括:热水供给用热交换器52,用于在热水储存箱8中的热水与供水之间进行热交换; 热水供给热源管道46,其经由热水供给热交换器52将水从热水储存罐8的上部引导到热水储存箱8的下部; 在热水供给热源管道46中循环水的热水供给热源泵48以及控制部36.在使用作为热水中的热水的热源供热水的供热运转 储存罐8中,控制部36进行PID控制,计算热水供给用热泵48的输出,该热水供给热源泵48的输出作为在热水中流动的热水的流量的热源侧流量F1 为每个控制间隔“Tc”将热源管道46提供给目标流量Ftgt。 这里,当热水供给侧流量Fk稳定时,控制部36将控制间隔“Tc设定为等于监视间隔”Tf,将控制间隔“Tc设定为控制间隔”Tcmin 短于监测间隔“Tf,当热水供应侧流量Fk迅速波动时。