Device for removing oxygen in top space after beer filling of PET bottle and method

Abstract

The invention relates to a device for removing oxygen in the top space after beer filling of a PET bottle. The device comprises pipelines, a light sensor and a light reflecting plate, wherein the pipelines, the light sensor and the light reflecting plate are arranged in a beer filling production line. A plurality of jetting heads are arranged on the pipelines, are located outside the liquid level line of the PET bottle and face the PET bottle. The light sensor and the light reflecting plate are arranged in a face-to-face mode and located at the position of a PET bottle opening. A method based on the device comprises the steps that in the process of beer filling of the PET bottle, after beer is poured into the PET bottle, jetting is conducted on the portion, located below the liquid level line of the PET bottle, of the exterior of the PET bottle by the use of hot water at the temperature ranging from 40 DEG C to 50 DEG C or steam at the temperature of being smaller than or equal to 121 DEG C, wherein the jetting portion is 0-1 centimeter lower than the liquid level line of the PET bottle, and the jetting time ranges from 4 seconds to 6 seconds. According to the device and the method, hot water or steam is used for conducting gentle heating on beer located below the liquid level line, a large amount of foam cannot be generated when carbon dioxide overflows, the phenomenon that beer foam overflows the bottle opening cannot exist, and the phenomenon that the bottle opening residue is formed due to the fact that beer foam is left in the bottle opening is avoided.

Description

【Technical field】 [0001] The invention relates to the technical field of beer production, in particular to a device and a method for removing oxygen from the head space after PET bottle beer filling. 【Background technique】 [0002] Before the glass bottle beer is filled and capped, the air in the headspace of the bottle needs to be removed, usually by hot water stimulation. In PET bottle beer filling, in order to reduce the amount of oxygen added to the beer, it is also necessary to remove the air on the top of the bottle after filling before capping. If hot water is used to stimulate the bubbles, the foam will overflow the bottle mouth, causing the product to stay on the thread of the bottle mouth, resulting in residual sugar spots and even mildew spots. 【Content of invention】 [0003] In order to solve the above problems, the object of the present invention is to provide a bottle that can make the carbon dioxide dissolved in the beer escape, so that the air in the bottl...

AI Technical Summary

Problems solved by technology

If hot water is used to stimulate bubbles, because the bubbles generated will overflow the bottle mouth, the product will remain on the thread of the bottle mouth, resulting in residual sugar spots and even mildew spots

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