Control method for judging whether to increase or decrease units in cold station control system
A control system and control method technology, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as equipment start-up and stop, mechanical loss and consumption of related equipment, achieve stable operation, reduce mechanical loss and energy consumption The effect of consumption
Active Publication Date: 2021-02-19
青岛北冰洋冷暖能源科技有限公司
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Problems solved by technology
If the water temperature is just near the start-stop boundary, the fluctuation of the water temperature will cause unnecessary start-up and stop of equipment, resulting in unnecessary mechanical loss and energy consumption of related equipment. Therefore, a control system for judging whether to increase or decrease the unit in the control system of the cold station is designed. method is necessary
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[0025] 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.
[0026] see Figure 1-2 , the present invention provides a technical solution: a control method for judging whether to increase or decrease units in a cold station control system, comprising the following steps: Step 1, monitoring data; Step 2, substituting data; Step 3, judging data; Step 4, Judgment of machine increase; step 5, data return; step 6, monitoring and judgment; step 7, operation judgment; step 8, judgment again; step 9, judgment return; step 10, j...
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The invention discloses a control method for judging whether to increase or decrease units in a cold station control system. The control method comprises the following steps: step 1, monitoring data;2, substituting the data; 3, judging the data; step 4, judging machine increase; 5, returning the data; 6, carrying out monitoring and judging; 7, carrying out operation judgment; 8, carrying out judging again; 9, carrying out judging and returning; and 10, carrying out judging machine decrease; wherein in the first step, the water temperature T, the water temperature set temperature Ts, the equipment increasing temperature TI, the buffer temperature difference TD and the buffer temperature difference TB are monitored in real time according to the running number n of the current equipment; inthe step 2, the monitored data is substituted into a primary judgment formula to be judged by using the primary judgment formula, and the logic is controlled according to the water temperature changetrend, so that the problem of unnecessary startup and shutdown of the equipment caused by water temperature fluctuation is solved, and the actual refrigeration load demand can be responded in time; and therefore, unnecessary mechanical loss and energy consumption are reduced.
Description
technical field [0001] The invention relates to the technical field of cold station control systems, in particular to a control method for judging whether to increase or decrease units in the cold station control system. Background technique [0002] Usually when there are multiple refrigeration equipment in the cold station, the centralized control system of the cold station will automatically control the start and stop of the refrigeration equipment according to the water temperature and the set temperature and the temperature difference between start and stop. If the water temperature is just near the start-stop boundary, the fluctuation of water temperature will cause unnecessary start-up and stop of equipment, resulting in unnecessary mechanical loss and energy consumption of related equipment. Therefore, a control system for judging whether to increase or decrease the unit in the control system of the cold station is designed. method is necessary. Contents of the inv...
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IPC IPC(8): G05B19/418
CPCG05B19/4183Y02P90/02
Inventor 王进杰董俊杰黄宝真李玉柱于振坤任立娥
Owner 青岛北冰洋冷暖能源科技有限公司