| 摘要 |
PROBLEM TO BE SOLVED: To soften the impact when a liquefied gas collides with a liquid level in a container by making the liquefied gas flow down or drop while dispersing the liquefied gas, and at the same time, change an adding amount per unit time of the liquefied gas continuously and in a non-stage manner following the non-stage speed variation of a manufacturing line, regarding a liquefied gas adding nozzle which adds the liquefied gas onto the liquid level of the head space in the container. SOLUTION: This liquefied gas adding nozzle 1 comprises a fixed hole member 2 and a plug 3. In this case, the fixed hole member 2 has a hole section 22 which goes through in the vertical direction. The plug has a bar-shape plug section 31 which is longer than the length in the vertical direction of the hole section 22. In such a liquefied gas adding nozzle 1 on the outer peripheral surface of the bar-shape plug section 31 of the plug 3, a groove section 33 for passing the liquefied gas is formed from the top to the bottom in such a manner that the width may be approximately uniform, and the depth of the groove may gradually become deeper to tilt the groove bottom. Then, the nozzle 1 is closed when the plug 3 reaches the lowermost end location.
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