Title:
NITROGEN FILLING PROTECTION APPARATUS FOR SAPONIFICATION REFLUX
Document Type and Number:
WIPO Patent Application WO/2020/233342
Kind Code:
A1
Abstract:
A nitrogen filling protection apparatus for saponification reflux, comprising a tube body (1). The upper end of the tube body (1) is provided with an upper connection section (2) for connecting to a reflux condenser tube, and the lower end of the tube body (1) is provided with a lower connection section (3) for connecting to a round-bottom flask or a flat-bottom flask. A gas introduction tube (4) is provided on the sidewall of the tube body (1). The gas introduction tube (4) penetrates through the sidewall of the tube body (1) from the outer side of the tube body (1) to enter an inner cavity of the tube body (1). The front section of the gas introduction tube (4) located in the inner cavity of the tube body (1) is bent downward. An arc transition is provided at the bending position of the gas introduction tube (4). The axis of the bent front section of the gas introduction tube (4) is parallel to the axis of the tube body (1).
Inventors:
KONG FANKE (CN)
SUN CHUNHUA (CN)
CUI ZEHUA (CN)
SUN CHUNHUA (CN)
CUI ZEHUA (CN)
Application Number:
PCT/CN2020/086633
Publication Date:
November 26, 2020
Filing Date:
April 24, 2020
Export Citation:
Assignee:
SHANDONG NEWHOPE LIUHE GROUP (CN)
NEW HOPE LIUHE CO LTD (CN)
NEW HOPE LIUHE CO LTD (CN)
International Classes:
B01L3/00
Foreign References:
| CN110064448A | 2019-07-30 | |||
| US3124423A | 1964-03-10 | |||
| CN201410388Y | 2010-02-24 | |||
| CN204882490U | 2015-12-16 | |||
| CN207872194U | 2018-09-18 | |||
| US5814674A | 1998-09-29 |
Attorney, Agent or Firm:
JINAN WISDOM PATENT OFFICE (CN)
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