【Daily Question No. 341】December 13, 2018
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【Daily Question No. 341】December 13, 2018: Briefly explain why two valves are required for the purge steam used in the bottom pump of a distillation tower, and what is the purpose of the drain valve located between these two valves? Two valves can be used to enhance the sealing effect, preventing the material inside the pump from entering the steam or steam from entering the pump body, which could otherwise cause the pump to become empty. The drain valve located between the two valves is used for steam dehydration before line cleaning ； The drain valve can be used to determine which of the two valves has an internal leak. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
Drain all the water from the steam pipe using heat; meanwhile, a blind plate should be installed between the two valves to prevent leaks inside the valves
Prevent steam and oil from intermingling； The middle drain valve can be used to check which valve on either side has an internal leak
Two valves can be used to enhance the sealing effect. The center drain valve is used for steam dehydration before line cleaning ； It is also possible to determine which of the two valves has internal leakage.
Two valves can enhance the sealing effect, preventing the material inside the pump from entering the steam or steam from entering the pump, which could otherwise cause the pump to become evacuated； The drain valve located between the two valves is used for steam dehydration prior to line cleaning ； The drain valve can be used to determine which of the two isolation valves has internal leakage.
Two valves can be used to enhance the sealing effect, preventing the material inside the pump from entering the steam or steam from entering the pump body, which could otherwise cause the pump to become empty. The drain valve located between the two valves is used for steam dehydration before line cleaning ； The drain valve can be used to determine which of the two valves has an internal leak.
Two valves can be used to enhance the sealing effect, preventing the material inside the pump from entering the steam or steam from entering the pump body, which could otherwise cause the pump to become empty. The drain valve located between the two valves is used for steam dehydration before line cleaning ； The drain valve can be used to determine which of the two valves has an internal leak.
To obtain pure steam? ? ? To drain condensate water
Two valves can be used to enhance the sealing effect, preventing the material inside the pump from entering the steam or steam from entering the pump, which could otherwise cause the pump to become empty. The drain valve located between the two valves is used for steam dehydration before line cleaning. The drain valve can be used to determine which of the two valves has an internal leak
Two valves can be used to enhance the sealing effect and prevent the material inside the pump from leaking out