PROBLEM TO BE SOLVED: To provide a liquid chemical evaporating device that can evaporate liquid chemical in the air with high performance.SOLUTION: A liquid chemical evaporating device includes: evaporating devices 10a-10d for evaporating liquid chemical in the air by sending air into the liquid chemical and performing aeration； a liquid chemical tank 11 for storing the liquid chemical； a liquid chemical pump 12 for supplying the liquid chemical from the liquid chemical tank 11 to the evaporating devices 10a-10d； an air pump 13 for supplying air to the evaporating devices 10a-10d； a chamber 14 for collecting air containing the liquid chemical obtained by the evaporating devices 10a-10d； a blower 15 for sending out air containing the liquid chemical in the chamber 14； and a waste liquid tank 16 for storing the liquid chemical discharged from the evaporating device 10d.【課題】高効率で薬液を空気中に蒸散させることが可能な薬液蒸散装置の提供。【解決手段】薬液に空気を送り込んで曝気することにより薬液を空気中に蒸散させる蒸散器１０ａ～１０ｄと、薬液を貯留する薬液タンク１１と、蒸散器１０ａ～１０ｄへ薬液タンク１１から薬液を供給する薬液ポンプ１２と、蒸散器１０ａ～１０ｄへ空気を供給するエアーポンプ１３と、蒸散器１０ａ～１０ｄにより得られた薬液を含む空気を集めるチャンバー１４と、チャンバー１４内の薬液を含む空気を送り出すブロアー１５と、蒸散器１０ｄから排出される薬液を貯める廃液タンク１６とを含む。【選択図】図２
