Method and system for rapidly and accurately establishing dissolved oxygen content in water through double passages
A technology of dissolved oxygen content and dissolved oxygen, applied in chemical instruments and methods, water aeration, water/sludge/sewage treatment, etc., can solve problems such as no technical solutions, achieve the effect of maintaining stability and reducing hysteresis
Inactive Publication Date: 2014-11-26
中国科学院南京地质古生物研究所
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But there is no corresponding technical scheme in the present prior art
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[0032] Such as figure 1 As shown, the structure of the whole control system of the present invention mainly includes an experimental pool 1, a high-concentration dissolved oxygen water backup pool 2, and a low-concentration dissolved oxygen water backup pool 3; Dissolved oxygen water standby pool 2 and low-concentration dissolved oxygen water standby pool 3, at the bottom of high-concentration dissolved oxygen water standby pool 2, high-concentration dissolved oxygen water solenoid valve (No. 1 solenoid valve and water pump) 4 is connected to experimental pool 1, the upper part Connected with pipelines; at the bottom of the low-concentration dissolved oxygen water backup pool 3, the low-concentration dissolved oxygen water solenoid valve (No. 2 solenoid valve and water pump) 5 is connected to the experimental pool 1, and the upper part is also connected with a pipeline. The bottom of the experimental pool 1 is equipped with a storm solenoid valve (No. 3 solenoid valve) for 6 a...
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The invention discloses a method and a system for rapidly and accurately establishing dissolved oxygen content in water through double passages. An oxygen or air aeration mechanism controlled by an aeration electromagnetic valve and a nitrogen aeration mechanism controlled by a nitrogen electromagnetic valve are arranged in an experimental tank; a dissolved oxygen electrode is arranged in the experimental tank, and the output of the dissolved oxygen electrode is connected with a computer. The system for rapidly and accurately controlling dissolved oxygen content in water through double passages is characterized in that a high-concentration dissolved oxygen water standby tank and a low-concentration dissolved oxygen water standby tank are further arranged in the system; a dissolved oxygen electrode and an oxygen or air aeration mechanism are arranged in the high-concentration dissolved oxygen water standby tank; the high-concentration dissolved oxygen water standby tank is communicated with the experimental tank through the electromagnetic valve or a water pump; a dissolved oxygen electrode and a nitrogen aeration mechanism are arranged in the low-concentration dissolved oxygen water standby tank, and the low-concentration dissolved oxygen water standby tank is communicated with the experimental tank through the electromagnetic valve or the water pump. With adoption of the method and the system, disclosed by the invention, the oxygen content in equipment can be monitored in real time and controlled accurately; the double passages control the oxygen content in the experimental tank, so that the hysteresis of the system control and response is reduced, the oxygen content stability in a system is maintained, and the research or experiment relative to dissolved oxygen in water can be carried out smoothly and accurately.
Description
technical field [0001] The invention relates to a double-channel method for quickly and accurately establishing dissolved oxygen content in water and a system thereof. The method and system can quickly and accurately control the dissolved oxygen content in equipment. Background technique [0002] Dissolved oxygen in water is closely related to biological activities, and its content change is often a major indicator reflecting the growth of organisms and monitoring pollution. [1-2] . Dissolved oxygen research plays a very important role in chemistry and ecological environment science. However, due to the large time lag widely existing in dissolved oxygen control, the influence on the set value is relatively high or low, making the dissolved oxygen in the solution There are large fluctuations in dissolved oxygen control, which make it difficult to achieve accurate quantitative research on dissolved oxygen in chemical and biological processes [3-4] . The usual practice i...
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IPC IPC(8): C02F7/00
CPCY02W10/10
Inventor 王伟卢杰妍刘静陈孝政曹媛
Owner 中国科学院南京地质古生物研究所