发明名称 |
Controlling concentration of additive in an evaporative system |
摘要 |
Concentration of an additive in an evaporative system is monitored by measuring the conductivity ratio of the make up water and the blow down water, as one value, separately measuring the flow rate of the make up water as another value, obtaining the product of the two values (an analog) and adjusting a variable pump which delivers the additive in accordance with the analog.
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申请公布号 |
US3918469(A) |
申请公布日期 |
1975.11.11 |
申请号 |
US19740459918 |
申请日期 |
1974.04.11 |
申请人 |
NALCO CHEMICAL COMPANY |
发明人 |
ZAMBONI, LEOPOLDO;MINERVINI, MAURO;ZIFFERERO, MARCELLO |
分类号 |
C02F1/04;C02F1/68;G05D21/02;(IPC1-7):G05D11/08 |
主分类号 |
C02F1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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