A method and device for controlling the liquid level of an air-cooling tower
A liquid level control, air cooling tower technology, applied in liquid level control, non-electric variable control, control/regulation systems, etc., can solve problems such as damage to the water network, equipment safety accidents, access, etc., to reduce the possibility of large errors The effect of sex, precise acquisition
Active Publication Date: 2016-05-11
ELECTRON CO LTD
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Problems solved by technology
[0004] In the normal production process, whether the liquid level of the air cooling tower is too high or too low, it will cause serious consequences
When the liquid level is too high, the liquid level of the air-cooling tower will be higher than the air compressor, and enter the outlet pipe of the air-cooling tower. High-pressure air enters the circulating water return main pipe, which will damage the nozzle of the cooling fan. At the same time, the high-pressure air will damage the water network, causing equipment safety accidents
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[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0048] The invention discloses a method for controlling the liquid level of an air cooling tower, the flow chart of which is as follows figure 1 shown, including:
[0049] Step S11, directly detecting the liquid level height of the air-cooling tower to obtain the first liquid level and the second liquid level;
[0050] Two identical liquid level detection devices are installed at a certain height of the air cooling tower, and the two liquid level detection de...
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The invention discloses an air cooling tower liquid level control method and device. An effective liquid level is selected by comparing the difference values between a detected first liquid level, a detected second liquid level and a third calculated liquid level with a preset liquid level difference value. The effective liquid level is obtained through two liquid level detection results and a liquid level calculation result so as to accurately obtain the liquid level of an air cooling tower and reduce the possibility of larger errors of the liquid level of the cooling tower. A second comparison result is obtained by comparing the height of the effective liquid level and a liquid level set point. The second comparison result is used for adjusting the valve opening degree of a drain valve so as to accurately control the drain valve and further achieve accurate adjustment of the liquid level of the cooling tower.
Description
technical field [0001] The invention relates to the field of liquid level control, in particular to a method and device for controlling the liquid level of an air cooling tower. Background technique [0002] The air separation unit is to separate the various components in the air. The specific process is from the air self-cleaning filter, air compressor, pre-cooling system to the air purification system, supercharger, expander, and then to the air separation tower. , Any problem in any link will directly affect the production of the air separation unit. [0003] Among them, the air cooling tower is an important equipment of the pre-cooling system in the air separation unit. During the production process of the air separation unit system, the detection and control of the liquid level of the air cooling tower involves important process control of equipment safety and working condition stability. [0004] In the normal production process, no matter whether the liquid level of ...
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IPC IPC(8): F28F27/00G05D9/12
Inventor 傅守滨张国华张佳华赵成文李学波孙英云李源韩梦云张纪康宗德城林琳亓子超孙亚宁向兆永马春霞邢纹娜赵琳赵洁周莉萍刘志强袁蓉王立昌屈立军戴军
Owner ELECTRON CO LTD