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    • 8. 发明授权
    • Method for chemistry control in cooling systems
    • 冷却系统化学控制方法
    • US07632412B2
    • 2009-12-15
    • US11556391
    • 2006-11-03
    • Donald A. JohnsonSteven R. HatchArthur J. Kahaian
    • Donald A. JohnsonSteven R. HatchArthur J. Kahaian
    • C02F1/42
    • C02F1/008C02F2001/425C02F2103/023C02F2209/008C02F2209/05C02F2209/06C02F2209/42
    • A method for controlling a cooling water tower comprising: providing a cooling tower system, which includes a recirculated evaporative cooling water stream, a source of make-up water, an evaporative cooling unit, a heat exchanger, a bleed off line, and a bleed-off valve which is in communication with said bleed-off line; providing a plurality of conduits through which said makeup water flows into said evaporative cooling water stream, wherein there is at least a first conduit that contains a weak acid cation ion exchange column and a second conduit that does not contain a weak acid ion exchange column, and wherein each conduit has at least one conduit valve; choosing a pH and a conductivity setpoint value and a deadband value above and below said setpoint value in said cooling tower system; measuring both the pH of said evaporative cooling water stream with one or more pH meters and conductivity of said evaporative cooling water stream with one or more conductivity meters; and implementing a response to said conductivity measurements and pH measurements is disclosed.
    • 一种用于控制冷却水塔的方法,包括:提供冷却塔系统,其包括再循环的蒸发冷却水流,补充水源,蒸发冷却单元,热交换器,排出管线和出口 与所述泄放线连通的阀; 提供多个导管,所述补充水通过该导管流入所述蒸发冷却水流中,其中至少包含弱酸性阳离子交换柱的第一导管和不含弱酸离子交换柱的第二导管, 并且其中每个导管具有至少一个导管阀; 在所述冷却塔系统中选择pH和电导率设定值以及高于和低于所述设定值的死区值; 用一个或多个pH计测量所述蒸发冷却水流的pH值,并用一个或多个电导率仪测量所述蒸发冷却水流的电导率; 并且公开了对所述电导率测量和pH测量的响应。
    • 9. 发明申请
    • METHOD FOR CHEMISTRY CONTROL IN COOLING SYSTEMS
    • 冷却系统中化学控制的方法
    • US20080105621A1
    • 2008-05-08
    • US11556391
    • 2006-11-03
    • Donald A. JohnsonSteven R. HatchArthur J. Kahaian
    • Donald A. JohnsonSteven R. HatchArthur J. Kahaian
    • C02F1/42
    • C02F1/008C02F2001/425C02F2103/023C02F2209/008C02F2209/05C02F2209/06C02F2209/42
    • A method for controlling a cooling water tower comprising: providing a cooling tower system, which includes a recirculated evaporative cooling water stream, a source of make-up water, an evaporative cooling unit, a heat exchanger, a bleed off line, and a bleed-off valve which is in communication with said bleed-off line; providing a plurality of conduits through which said makeup water flows into said evaporative cooling water stream, wherein there is at least a first conduit that contains a weak acid cation ion exchange column and a second conduit that does not contain a weak acid ion exchange column, and wherein each conduit has at least one conduit valve; choosing a pH and a conductivity setpoint value and a deadband value above and below said setpoint value in said cooling tower system; measuring both the pH of said evaporative cooling water stream with one or more pH meters and conductivity of said evaporative cooling water stream with one or more conductivity meters; and implementing a response to said conductivity measurements and pH measurements is disclosed.
    • 一种用于控制冷却水塔的方法,包括:提供冷却塔系统,其包括再循环的蒸发冷却水流,补充水源,蒸发冷却单元,热交换器,排出管线和出口 与所述泄放线连通的阀; 提供多个导管,所述补充水通过该导管流入所述蒸发冷却水流中,其中至少包含弱酸性阳离子交换柱的第一导管和不含弱酸离子交换柱的第二导管, 并且其中每个导管具有至少一个导管阀; 在所述冷却塔系统中选择pH和电导率设定值以及高于和低于所述设定值的死区值; 用一个或多个pH计测量所述蒸发冷却水流的pH值,并用一个或多个电导率仪测量所述蒸发冷却水流的电导率; 并且公开了对所述电导率测量和pH测量的响应。