PROBLEM TO BE SOLVED: To inexpensively secure the feed of RO (Reverse Osmosis) water of a large flow rate without being affected by fluctuation of feed of the RO water, to mix an undiluted solution A and an undiluted solution B in a constant ratio into the RO water of a prescribed quantity, and to produce a dialysis fluid of a stable concentration easily and in large quantities.SOLUTION: A dialysis fluid feeding device 1 comprises: a feed water tank 10 arranged in a prescribed level and a mixer 40 arranged downward than the feed water tank 10 to mix an undiluted solution A and an undiluted solution B into water supplied by a level difference pressure. The mixer 40 is constructed to mix the undiluted solution B into water supplied from the feed water tank 10, and to mix the undiluted solution A into the water at the downstream side than the mixing point of the undiluted solution B.COPYRIGHT: (C)2015,JPO&INPIT【課題】RO水の供給量の変動の影響を受けることなく大流量のRO水の供給を安価に確保し、所定量のRO水に対してA原液及びB原液を一定の比率で混合し、安定した濃度の透析液を容易に、かつ、大量に生成する。【解決手段】透析液供給装置1は、所定高さに配置された給水タンク10と、給水タンク10よりも下方に配置され、落差圧によって供給された水に、A原液とB原液とを混合させるための混合器40とを備えている。混合器40には、給水タンク10から供給された水にB原液を混合し、B原液の混合箇所よりも下流側でA原液を混合するように構成されている。【選択図】図1
