Carbon dioxide beverage and beer pop can filling valve

Abstract

The invention discloses a carbon dioxide beverage and beer pop can filling valve, which comprises an annular material tank. Backpressure gas is filled above materials in the annular material tank; the bottom of the annular material tank is provided with a valve body; a valve seat is arranged at the bottom of the valve body; a valve rod is arranged in the annular material tank; a fit surface is formed between the bottom end of the valve rod and the valve seat; a spring is arranged between the outer wall of the valve rod and the inner wall of the valve body; a filling seal cover is arranged on the outer wall of the valve body and can slide along the outer wall; and a backpressure channel for inputting the backpressure gas into pop cans to be filled and a control mechanism thereof, and a pressure relief channel for blowing down the gas in the pop cans to be filled and a control mechanism thereof are arranged in the annular material tank and the valve body. By arranging the backpressure gas and the backpressure channel, the backpressure gas blows the interiors of the pop cans before filling, and oxygen increase is reduced; and backpressure is applied, so that the pressure inside the pop cans is absolutely equal to the pressure of the backpressure gas during filling, liquid level fluctuation caused by stable state differential pressure is eliminated, and complete equipressure filling and stable filling are realized.

Description

technical field [0001] The invention relates to a production line for filling carbonated beverages or beer, in particular to a filling valve used on the production line. The filling valve can fill fluid products such as carbonated beverages and beer into pop cans by isobaric filling. Background technique [0002] At present, mechanical filling valves are used for isobaric filling of domestic fluids. The advantages of mechanical filling valves are: low manufacturing accuracy requirements, convenient processing, and conducive to reducing manufacturing costs. However, its shortcomings are also very obvious: the single valve capacity is low; the liquid level deviation in the container after filling is large; because the efficiency of the single valve is not high, the speed of the filling machine has an impact on the filling accuracy, and the structure is difficult to clean , unhygienic; the use of cylinders to compress and seal, the cost is high; the amount of oxygen added to th...

AI Technical Summary

Problems solved by technology

However, its shortcomings are also very obvious: the single valve capacity is low; the liquid level deviation in the container after filling is large; because the efficiency of the single valve is not high, the speed of the filling machine has an impact on the filling accuracy, and the structure is difficult to clean , unhygienic; using cylinders to compress and seal, the cost is high; the amount of oxygen added to beverages or beer during the filling process is high, which is not conducive to the shelf life of the product

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