CHEMICAL HEAT STORAGE DEVICE

PROBLEM TO BE SOLVED: To provide a chemical heat storage device capable of detecting abnormality of the device.SOLUTION: A chemical heat storage device 7 includes a temperature sensor 15 detecting a temperature of an adsorber 10, a temperature sensor 16 detecting a temperature of an engine oil flowing at a downstream side of a reactor 9, a first calculation portion 19 calculating an estimation value of an increase temperature of the engine oil in supplying NHfrom the adsorber 10 to the reactor 9 on the basis of a detection value of the temperature sensor 15, a second calculation portion 20 calculating an actual measurement value of the increase temperature of the engine oil in supplying NHfrom the adsorber 10 to the reactor 9 on the basis of a detection value of the temperature sensor 16, and an abnormality determination portion 21 comparing the actual measurement value of the increase temperature of the engine oil and the estimation value of the increase temperature of the engine oil, then determining abnormality when the difference between the actual measurement value of the increase temperature of the engine oil and the estimation value of the increase temperature of the engine oil is larger than a threshold value.SELECTED DRAWING: Figure 1 【課題】装置の異常を検知することができる化学蓄熱装置を提供する。【解決手段】化学蓄熱装置７は、吸着器１０の温度を検出する温度センサ１５と、反応器９の下流側を流れるエンジンオイルの温度を検出する温度センサ１６と、温度センサ１５の検出値に基づいて、吸着器１０から反応器９にＮＨ３が供給される際のエンジンオイルの上昇温度の推定値を算出する第１算出部１９と、温度センサ１６の検出値に基づいて、吸着器１０から反応器９にＮＨ３が供給される際のエンジンオイルの上昇温度の実測値を算出する第２算出部２０と、エンジンオイルの上昇温度の実測値とエンジンオイルの上昇温度の推定値とを比較し、エンジンオイルの上昇温度の実測値とエンジンオイルの上昇温度の推定値との差が閾値よりも大きいときに、異常と判定する異常判定部２１とを備える。【選択図】図１