Розробка методу для підвищення продуктивності дозування етанолу

The object of research is the process of ethanol dosing. The existing technology of ethanol dosing and shipment is based on actual data from a mass flowmeter, or a weight method, which is not accurate and not productive in terms of time. This requires constant control and involvement of human resources during product shipment and does not allow dosing the shipped amount of ethanol with the required accuracy. An ethanol dosing method has been developed that increases the accuracy and productivity of the accounting and shipment units at alcohol industry enterprises. The proposed method uses data from the flowmeter of alcohol-containing products and automatically controls the dosing process, which ensures accurate product shipment. An algorithm for the operation of the dispenser has been developed that changes the speed of the pump motor and predicts the time of completion of dosing in accordance with the current value of the product flow rate. A mathematical model for determining the volumetric strength of an alcohol product depending on temperature and its density has been presented. This allowed to increase the dosing accuracy to 0.5%, and improved the productivity of the ethanol dosing process. The proposed method allows, without changing the existing production facilities, to calculate the amount of pure alcohol in the mixture from 0 to 40°С and the volume strength in the range from 91 to 100%. It is shown that the proposed method provides dosing accuracy up to 0.5%, and allows for a 20% reduction in product shipment time due to automatic amount of pure alcohol accounting. The proposed method can be applied at production facilities using a preliminarily mounted Coriolis flowmeter from manufacturers such as Krohne or Emerson, or similar. Such a flowmeter is a rather expensive but effective basic tool for accurate ethanol dosing.