US2166245A - Condensate siphon - Google Patents

Description

July 18, 1939. L. D. GoFF air AL V CONDENSATE SIPHON Filed Jan. l2, 1958 www LE-DNARD D. RULLU MDA/Fens Ow J Nm `Plasma .my 1s, 1939 UNITED STATES PATENT yOFFICE CONDENSATE SIPHON Michigan Application January 12, 1938, Serial No. 184,654

Z Claims.

The present invention relates to improvements in apparatus for removing condensate from steam heated rotated cylindrical drying drums, such as used in slashers in textile mills and in paper making. More particularly, the apparatus is designed for convenient installation in drying -drums already in use having a plurality oi tie bolts radially spaced from the axis of rotation and extending between the ends of the drum.

One object of the invention is to provide an apparatus which is capable of maintaining a minimum water level at all times in the drying drum, thus assuring higher cylinder temperatures and permitting increased production.

Another object is to provide condensate removing apparatus for dryingl drums `capable of being conveniently installed in drums now in operation.

A further object resides in providing a. novel apparatus of the type described having a. plurality of radial siphon pipes which rotates with the drum as a unit; each pipe, in succession, upon being rotated into a vertical piane having communication with a common discharge.

These and other objects and advantages of the present invention residing in the combination, construction, and arrangement of parts will more fully appear from the detailed description to follow whenconsidered in connection with the appended claims.

In the drawing, l

Fig. l is a fragmentary vertical cross-sectional view taken on the longitudinal center line of a drying drum embodying the present invention, and

Fig. 2 is a cross-sectional view taken on line II-II of Fig. 1 of the siphon and siphon selector mechanism.

The drying drinn in connection with which the present invention is illustrated is of well-known construction and has been generally designated by reference character I0. It comprises a cylindrical outer surface I2 spaced and supported by end members I4 and I5. A plurality of radially spaced and positioned tie bolts I8 lend structural support to the end members I4 and I6, which are in turn concentrically supported by iianges and 22 having as integral parts thereof the journal members 24 and 25 which are supported in suitable bearings upon the machine frame (not shown). Prior lto the installation of the present invention the drum will consist of a pair of internal ange portions similar to the flange 28, which carry a central supporting shaft 30.

The rotary siphon adaptor of the 'present invention, in the form illustrated in the drawing, comprises a flanged part 32 having a central threaded portion 34 and a bored out portion 85 in which a replaceable sleeve 38 is received. The sleeve 38 and the iianged part 32 are ported at 40 so as to admit live steam to pass up through the conduit 42 through the passage surrounding the pipe 44 and out through the ports 40 into the interior of the drum I0. The pipe 44 is threaded at 45 into the fixed distributor head 48 ca-rrying the rotary joint 50. At its opposite end the pipe 44 is threaded into a siphon selector 52 having a central chamber 54 and a single port 55. The selector 52 is closely fitted within the sleeve 88 and is held against rotation through the connection of the pipe 44 with the iixed part 48. Threaded in the flanged part 32 is a plurality of radially extending siphon pipes 58 which communicates with aligned radial passages 50 defined in the flanged part 32 and the sleeve 38. The pipe 44 through the distributor 48 communicates with a discharge pipe 62 leading to some suitable reservoir or outlet for the condensate removed from the drum.

In operation, as ithe drum rotates, the siphon pipes 58 rotate therewith as a unit and are successively brough into communication with the port 55 of the selector 52. Communication` between the pipes 58 and the port 56 will take place during the time the particular pipe 58 in communication is swinging through an arc of several degrees. During this period the particular pipes 58 in communication with the ports 56 will be capable of discharging condensate upwardly into the chamber '54 and outwardly to the exterior of the drum through the pipe 44 and the pipe 52. When the particular discharging pipe 58 has traveled through a suiiicient are as to be out of communication with the port 56, the condensate will continue to stand in the pipe while the same is rotated throughout substantially 360 and is again brought into communication with the port 56. 'I'his avoids the necessity of the condensate having to be siphoned up through the full length of the pipe 58 each time the same is brought into communication with the port 56. This feature permits the siphcning of the condensate from the drum with a relatively small amount of condensate present therein and results in maintaining the water level at a at all times.

To describe the installation of the above described siphon to the o@ drying drum I8 illustrated, a workman enters the interior of the drum I Il through a manhole (not shown) and cuts thesupporting pipe 30 in two to permit the removal oi.' the left hand flange corresponding to the flange 28 shown in the drawing. The anged part I2 is then substituted for one of the flanges 2l, and with the siphon pipe 58 in position and located between the tie rods -il the supporting rod is then threaded into the flanged part 32 at 34 and the two parts of the supportingpipe 3l united by being threaded in'tocoupling flanged parts 64 and 66.

Having described the invention, what we claim is new and wish to be secured by Letters Patent is:

1. A rotary siphon designed for installation in a drying drum concentric with its axis of rotation, comprising a ilange part having a hollow interior adapted to be entirely supported and housed within the drum, ports through said part for discharging steam into the interior of the drum, a

-lector port upon rotation of the drum.

2. In a steam heated drum, a siphon for removing condensate from the drum comprising a body entirely supported from within the drum and concentrically located with reference to the axis of rotation of the drum, said body having a cylindrical concentrically located recess opening through one end thereof, a replaceable hollow cylindrical sleeve closely tted into and engaging the wall of said recess, aligned radial passages in said body and sleeve, a plurality of siphon pipes threaded into said body and communicating with said passages to constitute an extension thereof, said pipes being solely supported from said body, a siphon pipe selector in the form of a hollow cylindrical valve having an inlet port and an outlet port, said valve being closely fitted in said sleeve to form a fluid seal with said inlet port in the same radial plane with said passages in said sleeve, a ilxed dis'charge pipe communicating with said outlet port of said valve and holding said valve against rotation in said sleeve, said valve having successive communication with the passages in said sleeve in communication with the siphon pipe in the lowermost position while sealing the remaining passages in said sleeve, and a supporting shaft concentric with the axis of rotation of said drum and engaging with the hub portion of said body.

LEONARD D. GOFF. ROLLO O. MONROE.

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