【Picture of the Day】2016 07 22 What kind of device is the one shown in this picture? Answer correctly and your prize will double!

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【Picture of the Day】2016-07-22 Picture of the Day – the excitement continues. What kind of device is the one shown in this picture? Those who answer everything correctly will have their wealth doubled! PSA section of methanol-to-hydrogen plant ~ Water ring vacuum pump. Promotion of petrochemical-related activities: Notice on the “I’m saving energy, where are you?” event in the petrochemical area. http://bbs.hcbbs.com/thread-1579199-1-1.html. This event offers awards in both text and image categories; when there are over 200 entries, an additional grand prize will be awarded. The value of this grand prize is 600 Haichuan coins (if there are more than 300 entries, the grand prize increases to 1000 Haichuan coins; if there are 500 entries, it rises to 1500 Haichuan coins). First prize: 3 Haichuan commemorative water cups. Second prize: 5 winners, each receiving 120 Haichuan coins. Honorable mentions: several winners, each receiving 200 Haichuan coins. 1. Thread on soliciting entries for award-winning posts in different categories: http://bbs.hcbbs.com/thread-1568416-1-1.html (Source: Haichuan Chemical Industry Forum). 2. [Petrochemical Weekly] Issue No. 9, dated 2016-3-12 (Summary of recent petrochemical activities): http://bbs.hcbbs.com/thread-1568615-1-1.html (Source: Haichuan Chemical Industry Forum). 3. “Haichuan Gratitude Season” [Petrochemical Section] – Summary of related events: http://bbs.hcbbs.com/thread-1533218-1-1.html (Source: Haichuan Chemical Industry Forum). 4. [Petrochemical Section] – Summary of professional “basic knowledge” posts (Supported by the main forum; amazing prizes await you): http://bbs.hcbbs.com/thread-1557057-1-1.html (Source: Haichuan Chemical Industry Forum)