Feedwater heater

F - Mech Eng,Light,Heat,Weapons – 22 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F22D 1/00 (2006.01) F22B 37/02 (2006.01) F22D 1/12 (2006.01)

Patent

CA 2470184

A feedwater heater for a steam generator (A) or heat recovery boiler or waste heat boiler through which hot gases pass includes two sections (26, 28) which are located side by side so that the temperature of the hot gases at the upstream face (30) of each section is essentially the same. The feedwater flows through a heat exchanger (34) before entering the first section, and here it is heated by water flowing from the upstream face of the first section to the downstream face (32) of the second section. The arrangement is such that all tubes in the two sections remain above the dew point of the hot gases, so that water does not condense on the tubes and unite with oxides of sulfur to form sulfuric acid which will corrode the tubes, yet substantial temperature differentials exist between the water in the sections and the hot gases as the gases pass through the sections.

Cette invention concerne un dispositif de chauffage d'eau d'alimentation pour chaudière à vapeur (A) ou chaudière à récupération de chaleur ou encore chaudière de récupération. Ce dispositif comprend deux parties (26, 28) disposées côte à côte de sorte que la température des gaz chauds sur le côté amont (30) est essentiellement la même dans les deux sections. L'eau d'alimentation traverse un échangeur de chaleur (34) avant de pénétrer dans la première section où elle est chauffée par l'eau s'écoulant du côté amont de la première section vers le côté aval (32) de la seconde section. Ce montage est tel que tous les tubes des deux sections restent au-dessus du point de rosée des gaz chauds. Ainsi. L'eau ne se condense pas sur les tubes et ne se combine pas avec des oxydes de soufre pour former de l'acide sulfurique corrosif pour les tubes. Toutefois, on observe des différentiels de température substantiels entre l'eau présente dans les deux parties et les gaz chauds qui les traversent.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Feedwater heater does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Feedwater heater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feedwater heater will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1386803

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.