【Q&A Question 325】2017.12.09
Thread Content
【Q&A Question 325】December 09, 2017: Describe the advantages, disadvantages, and application ranges of floating valve and tray towers? Answer: Advantages of the floating valve plate: high efficiency and wide operating range ； Disadvantages: Requires a stainless steel floating valve, which is prone to falling off ； Application scope: High separation requirements, large load variations ； Advantages of sieve plates: high efficiency and low cost ； Disadvantages: Requires a level surface for installation, low cost ； Application scope: High separation requirements, a large number of tray stages. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) For management purposes, if you need to view content from a few days ago, please go through the summary post below. 2017 Q&A Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657794-1-1.html 2017 Daily Image Summary Thread https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1875160 2017 LNG Version Daily Question Catalog https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1804162 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html
(1) The processing capacity is slightly lower than that of the tongue-type and sieve plate trays, but higher than that of the bubble cap trays; (2) It has a high operational flexibility; (3) The pressure drop across the dry tray is relatively high, greater than that of the tongue-type and sieve plate trays, but lower than that of the bubble cap trays, with a smaller liquid level gradient on the tray; (4) There is less mist entrainment; (5) It has a simple structure and is easy to install.
Float valve towers have a large operating flexibility and high processing capacity. The pressure drop in sieve plate towers is low, resulting in relatively limited operational flexibility
Low cost, difficult to clean, leakage, low efficiency
Advantages of floating valve plates: high efficiency, wide operating range； Disadvantages: Requires a stainless steel floating valve, which is prone to falling off ； Application scope: High separation requirements, large load variations ； Advantages of sieve plates: high efficiency and low cost ； Disadvantages: Requires a level surface for installation, low cost ； Application scope: High separation requirements, a large number of tray stages.
Features of floating valve trays: Their processing capacity is slightly lower than that of tongue-shaped and sieve trays, but higher than that of bubble trays; they offer greater operational flexibility. The pressure drop across the dry tray material is higher than that in tongue-shaped and sieve trays, yet lower than that in bubble trays, with a smaller liquid level gradient on the tray. Mist entrainment is minimal. The structure is simple, making installation convenient. Screen plate trays: Screen plate towers have low pressure drops, but their operational flexibility is relatively limited
Advantages of floating valve plates: high efficiency, wide operating range； Disadvantages: Requires a stainless steel floating valve, which is prone to falling off ； Application scope: High separation requirements, large load variations ； Advantages of sieve plates: high efficiency and low cost ； Disadvantages: Requires a level surface for installation, low cost ； Application scope: High separation requirements, a large number of tray stages.
Advantages of floating valve plates: high efficiency, wide operating range； Disadvantages: Requires a stainless steel floating valve, which is prone to falling off ； Application scope: High separation requirements, large load variations ； Advantages of sieve plates: high efficiency and low cost ； Disadvantages: Requires a level surface for installation, low cost ； Application scope: High separation requirements, a large number of tray stages.
Advantages of floating valve plates: high efficiency, wide operating range； Disadvantages: Requires a stainless steel floating valve, which is prone to falling off ； Application scope: High separation requirements, large load variations ； Advantages of sieve plates: high efficiency and low cost ； Disadvantages: Requires a level surface for installation, low cost ；
Advantages of floating valve plates: high efficiency, wide operating range； Disadvantages: Requires a stainless steel floating valve, which is prone to falling off ； Application scope: High separation requirements, large load variations ； Advantages of sieve plates: high efficiency and low cost ； Disadvantages: Requires a level surface for installation, low cost ； Application scope: High separation requirements, a large number of tray stages.
Disadvantages: Requires a stainless steel floating valve, which is prone to falling off； Application scope: High separation requirements, large load variations ； Advantages of sieve plates: high efficiency and low cost ； Disadvantages: Requires a level surface for installation, low cost ； Application scope: High separation requirements, a large number of tray stages.