EP 0158949 B1 19890315 - ROTARY SYPHON FOR REMOVING CONDENSATE FROM THE INTERIOR OF A VAPOUR-HEATED HOLLOW CYLINDER
Title (en)
ROTARY SYPHON FOR REMOVING CONDENSATE FROM THE INTERIOR OF A VAPOUR-HEATED HOLLOW CYLINDER
Publication
Application
Priority
DE 3414605 A 19840418
Abstract (en)
[origin: US4606136A] A rotary siphon in the steam-filled internal chamber of the rotating cylindrical shell in a paper or cardboard machine dryer has a hollow conical housing which defines with the internal surface of the shell an annular suction gap and spacedly surrounds a conical insert whose base abuts against the internal surface of the shell. The housing and the insert define an annular channel whose radially outermost portion communicates with the gap and whose radially innermost portion communicates with the interior of a condensate evacuating conduit. The condensate accumulates along the internal surface of the shell and is compelled to flow radially inwardly by way of the gap and channel and into the conduit due to the establishment of a pressure differential between the channel and the internal chamber of the shell. Such pressure differential is established by compressed steam which flows from the internal chamber, through the axially extending bores of screws which center the insert in the housing of the siphon, and through an orifice which is provided in the conical tip of the insert and communicates with the channel close to the locus of communication between the channel and the interior of the conduit. The inner surface of the housing and the outer surface of the insert are curved in such a way that they make a progressively smaller angle with the common axis of the insert and the housing, as considered in a direction from the internal surface toward the axis of rotation of the shell.
IPC 1-7
IPC 8 full level
D21F 5/10 (2006.01)
CPC (source: EP US)
D21F 5/10 (2013.01 - EP US)
Designated contracting state (EPC)
FR GB IT NL SE
DOCDB simple family (publication)
EP 0158949 A2 19851023; EP 0158949 A3 19861230; EP 0158949 B1 19890315; AU 4133985 A 19851024; AU 570789 B2 19880324; DE 3414605 A1 19851031; DE 3414605 C2 19860410; US 4606136 A 19860819; ZA 852818 B 19851127
DOCDB simple family (application)
EP 85104201 A 19850406; AU 4133985 A 19850417; DE 3414605 A 19840418; US 72415985 A 19850617; ZA 852818 A 19850416