Method and device for controlling load of ethylene-vinyl acetate combined polymerization device
The invention discloses a load control method and device for an ethylene-vinyl acetate combined polymerization device. The load control method comprises the following steps: determining and setting control parameters of a hot water system; ideal temperatures of the low-pressure hot water and the med...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a load control method and device for an ethylene-vinyl acetate combined polymerization device. The load control method comprises the following steps: determining and setting control parameters of a hot water system; ideal temperatures of the low-pressure hot water and the medium-pressure hot water are determined respectively, difference values between the ideal temperatures and actual temperatures of the low-pressure hot water and the medium-pressure hot water are calculated respectively, and a first difference value and a second difference value are obtained; according to the preset maximum cooling speed, the time needed by the hot water category corresponding to the larger value to increase the load is calculated; calculating the minimum cooling speed of the hot water category corresponding to the smaller value according to the time required for increasing the load; the first control parameter is kept unchanged, and the low-pressure hot water and the medium-pressure hot water are coo |
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