ION EXCHANGE APPARATUS

• Main Authors: ISSHIKI KATSUFUMI, MANABE ATSUYUKI, HOSOKAWA HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 27.04.2015
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide an ion exchange apparatus that can reduce the amount of water discharged from a pressure tank for the purpose of discharging the retained water.SOLUTION: Provided is an ion exchange apparatus (1) including a pressure tank (2) for housing an ion exchange resin bed (211), circulation means (3) and circulation control means (510), in which it is characterized in that: the circulation control means (510) is configured so as to start a regeneration mode instead of starting a washing mode when a washing start condition is satisfied during the duration when a moving-up renewable condition is satisfied; the washing start condition is set so as not to start the washing mode during a predetermined duration immediately after the shift to a water treatment mode; the regeneration start condition is that an integrated water in-take amount (Q) is at least a water in-take possible amount or more; the integrated water in-take amount is the total amount of the raw water flowed through the pressure tank (2) during the water treatment mode executed after the finish of the regeneration mode of the last time; and the moving-up renewable condition is that the integrated water in-take amount (Q) is at least a moving-up renewable water in-take amount or more. 【課題】滞留水を排出するために圧力タンクから排出される水量を低減できるイオン交換装置を提供すること。【解決手段】イオン交換装置（１）は、イオン交換樹脂床（２１１）が収容される圧力タンク（２）と、流通手段（３）と、流通制御手段（５１０）と、を備えており、前記流通制御手段（５１０）は、繰上再生可能条件が満たされている間に洗浄開始条件が満たされると、洗浄モードを開始させる代わりに再生モードを開始させるように構成されており、前記洗浄開始条件は、水処理モードへの移行直後の所定時間の間、前記洗浄モードを開始させないように設定されており、前記再生開始条件は、積算採水量（Ｑ）が採水可能量以上であることであり、積算採水量は、前回の前記再生モードが終了した後に実行される前記水処理モードにおいて前記圧力タンク（２）を流れた前記原水の総量であり、前記繰上再生可能条件は、前記積算採水量（Ｑ）が繰上再生可能採水量以上であることである。【選択図】図６