PROBLEM TO BE SOLVED: To provide a natural vaporization type vaporizer capable of setting increase/decrease of an amount of vaporization.SOLUTION: To a water tank 1 which stores solution to be vaporized and a lid 2 of the water tank provided with a plurality of vaporization filter insertion grooves 3 in a truncated chevron shape for inserting/standing/holding vaporization filter element pieces 5a, the vaporization filter element pieces 5a are inserted each being formed by vertically folding an upper vaporization part 7 made of material having water absorption properties and evaporation properties and being wide than a lower water absorption part 6, a stepped part between the vaporization part 7 of the vaporization filter element piece 5a and the water absorption part 6 makes tight contact with a surface of the lid 2 of the water tank two locations to be self-standing and held, thus vaporizing the solution to be vaporized in the tank 1. The vaporization amount can be increased/decreased by increasing/decreasing the number of sheets of the vaporization filter element pieces 5a. Thereby, a complicated holding structure for the vaporization filter element pieces 5a is unnecessary for causing the vaporization filter element pieces 5a to be self-standing and held, the components count of the device is reduced, and the product cost can be reduced.COPYRIGHT: (C)2013,JPO&INPIT【課題】 気化量の増減設定が可能な自然気化式の気化装置を提供すること。【解決手段】気化対象溶液を貯蔵する水槽1と、気化フィルター素片5aを挿入・自立・保持させるための「ハ」の字型の気化フィルター挿入溝3を複数設けた水槽の蓋2に、吸水・蒸発性の素材からなる上部の気化部7を下部の吸水部6より広くして垂直に折り曲げた気化フィルター素片5aを挿入し、気化フィルター素片5aの気化部7と給水部6との段差部分が水槽の蓋2の表面と2箇所で密着して自立・保持して、水槽1内の気化対象溶液を気化させる。気化量の増減は気化フィルター素片5aの枚数を増減することにより可能にする。これらにより、気化フィルター素片5aを自立・保持するために複雑な気化フィルター素片5aの保持構造体が不要になり、装置の部品点数が減り製品コストの引き下げが可能になる。【選択図】 図1
