US1523657A - Setting for stills and for similar purposes - Google Patents

Description

Jan. 20, 1925.

P. MATHER Filed Feb. 16, 1922 .0, m V. ralozw SETTING FOR STILLS AND FOR SIMILAR PURPOSES 5 Sheets-Sheet 1 Inventor y y jan. 20, 1925- L52357 P. MATHER SETTING FOR STILLS AND FOR SIMILAR PURPOSES Filed Feb. 16, 1922 3 Sheets-Sheet 2 Invenor Patented eliana Z, ilc

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PEBCY RATHER, OF LONDON, ENGLMTD.

Application filed February 16, 1922.

To all whom it may concern.'

Be it known that l, PERCY NLATHER, a subject of the King of Great Britain and Ireland, residing at 23 Great Winchester o Street, London, E. C., England, have invented certain new and useful Improvements Relating to Settings for Stills and for Similar urposes, of which the following is a speciication.

rlhis invention relates to settings for stills and for similar purposes.

The' invention particularly relates to settings for stills to which it is required to apply heat uniformly and in regulable zones, and is of especial utility in its application to a still such as is described in the specification of the prior applicatlon No. 490,949 of 1921, in which the crude oil or other similar liquid is subjected to fractional distillation in the course of its movement through the still.

According to the invention a setting is provided having a vertical series of annular heating lues transversely disposedwith respect to the vertical centre line of the cylindrical still casing, anda vertical series of combustion chambers is provided at one side of the setting, communicating respectively with the annular ilues, and a common vertical uptake is provided for the waste gases, in a position at the opposite side of the setting to that at which the combustion chambers are provided. The ports or outlets from the respective annular flues to the vertical uptake are thus disposed in such position that the heating gases flow around the casing of the still in two streams at the respective sides thereof, so that thus heat is uniformly applied around the' still, and dampers are advantageously provided for the regulation of the extent of opening of the ports or outlets between the respective annular heating lues and the uptake.

The invention comprises the construction which is hereinafter described.

The invention is illustrated in the accompanying drawings in Which- Figure l is a sectional elevation of a setting for a cylindrical still suchvas described in the specification of the prior applicationNo. 490,949 of 1921.

Figure 2 is a sectional plan in a plane such as -m Figure l through one of the annular heating ilues.

Figure 3 is a section on the line yv-y of Serial No. 536,963.

Figure 1, through the lowermost annular flue in the setting.

Figure 4 is in part a central sectional elevation taken at right angles to the sectional elevation Figure l and in part an end elevation of the upper part of the still.

Figures 5 and 6 are detail sectional elevation and front elevation of a damper such as may be used for the regulation of the extent of openingvof the outlet ports of the respective annular flues.

ln carrying the invention into effect in building a brickwork setting for a still such as described in the specification of the prior application referred to, the setting a TU is provided of a substantially cylindrical form surrounding the still, and with a series of transversely disposed annular dues b therein which completely surround the still casing 0. rlhese annular ues b serve as a 7 means by which heat is applied throughout the length of the still casing c. An additional flue i of an annular form is also provided to surround the downwardly rotruding part el of the vapour outlet tu e e 50 of the still described yin the specification of the said prior application.

A non-conducting lining f made of blocks of infusorial earth or the like, is advantageously interposed between the irebrick g (Figures 2, 3 and 4) and the ordinary brick# work backing L of which the cylindrical w-all of the setting is constructed. An intermediate non-conducting lining f is also provided beneath the lowest annular Hue of the setting, and a non-conducting lining may also be applied upon the setting and upon those parts of the still casing c and of the vapour outlet tube e that protrude above the annular ues in the setting; while above the 95 setting, layers of ordinary bricks h1 may be applied over the non-conducting lining as indicated in Figure 1.

lhe respective annular Haes b in the series are separated from each other and from 10G the annular due d which surround the down wardly protruding part el of the vapour outlet tube e, by horlzontal annular walls a which extend from the cylindrical wall of the setting inwardly so that their edges lie in contact with the still casing o. rilhus the cylindrical wall of the setting with the horizontal annular walls referred to, serve to provide separate annular ilues, in which the inner wall of each flue isformed by a part llU of the still casing. The inner edgesof the horizontal annular walls z' may be supported by means of angle hoops l secured in determined positions on the still casing o.

. respectively communicating with the separate annular flues b ord. The combustion chambers Z are disposed in vertical series and are formed integral with the cylindrical Wall of the setting. Thus the combustion chambers Z are disposed radially to the centre line of the setting and the series of combustion chambers Z thus provided protrude outwardly from the setting7 as more clearly indicated in Figures 2 and 3, and the wall of the settino adjacent the respective combustion cham ers is provided with two holes m within which the liquid fuel or gas burners 7c are disposed. The liquid fuel or gas burners Zt' are mounted upon 4plates secured upon the face of the setting in positions adJacent the respective combustion chambers, and a sighting hole m1 is also provided in a position between the holes m.

Inthe construction indicated two pairs of air ports n are provided for the admission of air to support and complete combustion in each combustion chamber, one pair of air ports being provided .for each burner. Each port n opens on the outer face of the setting and isv of an angular form as indicated in Figure 2. The ports n of each pair may be disposed in the same horizontal plane, and' one port of each pair may extend beyond the other as illustrated in Figure 2 so as thus to provide aforward supply of secondary air to ensure complete combustion in the flame, while the ports n opening into the combustion chamber-upon the same side extend one beyond the other as illustrated in Figure l.

The air ports may be provided so vas to be capable of being regulated by means of small sliding doors at the furnace fronts, or otherwise.

There may for example be seven annular flues disposed in series to surround the still casing c, with a vertical series of a correspending number of combustion chambers Z. l t willv be understood that inasmuch as each combustion chamber Z is disposed radially with reference tothe annular heating Hue with which it communicates, the heating gases are directed into the annular heating flue and against the still casing. The still casing may at the parts disposed oppositel to the combustionl chambers Zbe covered with a layer of lircbrick 0 toensure against eX- cessive local heating, and a vertical Wall or pillar of firebrick p may be provided in a position in front of the mouth of the comv bustion chamber Z and this wall or pillar p may have a substantially angular section as illustrated in Figures 2 and 3, with curved faces p1 by which the heating gases leaving each of the combustion chambers Z may be separated into two distinct streams to flow in reverse directions in the annular llu'e to the outlet or port g set in a position diametrically opposite to that at which the -combustion chamber Z is provided.

A number of radially disposed baille walls or blocks 1' may be provided to protrude inwardly from the peripheral wall of the respective annular lues b or d, so as thus at a number of positions to constrict the passage through which they heating gases pass7 and thus to cause their interruption and movement, whereby transmission of heat may be facilitated. v The heating gases thus pass in opposite directions around the still casingandl thence outwardly through the port or outlet g into a common vertical uptake or chimney s.

The ports or outlets g may advantageously be provided of considerable height or length, and of relatively small width or of any other shape and position, whereby the casing of the still may have vheat uniformly applied to it in the annular zones formed by the flues.

The outlets or ports g may be provided with dampers t capable of operation from lwithout for the purpose of regulation of their extent of opening.

A convenient form of damper t may be provided as a sliding valve plate (as illustrated in Figures 5 and 6) suspended from a horizontal sliding rod t1 carried within respective tubular fittings t2 t3 mounted within ,the Walls of the uptake s. b The face of the end wall of the setting, at the positions at which the outlets or ports g are provided may have mounted upon it a frame u at the lower part of which a guide channel u1 may be formed for the reception of the lower end of the damper t. Mechanical means may be provided for the purpose of laterally moving the rod t1 carrying the damper t, so that the lattermay be moved into any particular position desired for regulating the extent of opening of the outlet or port g. Such means may consist of a nut fitting t4 capable of rotation by means of an integral handle t5. The nut fitting has a screw threaded axial bore engaging a screw threaded part `of the rod t1 and is held from axial movement by connection with the end of the tubular littingf t3, so that thus on the rotation-of the handle t5 in one direction or the other, the damper t may be laterally moved in one direction or the other tothe extent required according to the degree of opening to be allowed to. the outlet or port q.

It will be further understood that manholes v may be provided in determined positions in the ylindricalwall of the setting for access to the annular flues b or d, and that these manholes Iv may be temporarily closed by bricks or blocks set in by the use of a suitable mortar oi luting.

The setting a may be provided With a oundation filled with concrete, and the bottom plate of the still casing c such as described in the specification of the said prior application, and the bottom plate of its vapour outlet tube e may be supported in the setting in such manner as to leave a passage w beneath the vapour outlet tube e, to permit of access to the outlet pipes and steam pipes of the still; While a passage may be provided -beneath the lsetting, at right angles to and on a level vvith the passage zu for convenience in disposing the steam pipes and the residuA outlet pipes respectively.

It will be understood that a framework comprising a number of platforms may be provided to surround the still and setting, and that these platforms are available for the control of the respective burners, and to render the respective annular flues conveniently accessible. v

I claim:

1. A furnace setting for the enclosure and application of heat to a vessel such .as a still Whose centre line is vertically disposed, said setting coinpiising a vertical series of separate and concentric annular heating tlues transversely disposed with respect to the vertical centre line of the vessel and ot' which the vessel forms the inner wall, a vertical series ot' separate combustion chainbeis each of which communicates with one of the annular tiues of the said series, and a separate outlet for the gases from each of the annular fines at the side of the setting opposite to thatl at Which the combustion chambers are provided, substantially as described.

2. A furnace setting for theenclosure and application of heat to a vessel such as a still Whose centre line is vertically disposed, said setting comprising a vertical series of separate and concentric annular heating tiues transversely disposed with respect to the vertical centre line of the vessel and ot which the vessel forms the inner Wall, a vertical sei'ies ot' separate combustion chambers each of which communicates With one of the annular iiues of the said series, a separate outlet for the gases from each/of the annular flues at the side of the setting opposite to that at Which the combustion chainbers are provided, and a common vertical uptakeffor the gases that issue through the said separate outlets, substantially as described.

3. A furnace setting or the enclosure and application of heat to a vessel such as a still Whose centre line is vertically disposed, said setting comprising a vertical series of separate and concentric annular heating flues transversely disposed with respect to the vertical centre line of the vessel and of Whiclrthe vessel forms the inner Wall, a vertical series of separate combustion chambers each of which communicates with one of the annular ilues of the said series, inwardly protruding radially disposed baffle Walls or blocks extending from the outer Wall of the said respective annular lues into a position short of the inner Wall thereof, and a separate outlet for the gases from each of the annular lues at the side of the setting opposite to that at which the combustion chambers are provided, substantially as described.

4. A furnace setting for the enclosure and application of heat to a vesselV such as a still Whose centre line is vertically disposed, said setting comprising a vertical series of separate and concentric annular heating flues transversely disposed With respect to the vertical centre line of the vessel and of which the vessel forms the inner wall, a vertical series of separate combustion chambers each of which communicates with one of the annular lues of the said series, and a separate, relatively narrow and long outlet, for the gases from each ot' the annular lines, at the side of the setting opposite to that at which the combustion chambers are provided, substantially as described.

5. A furnace setting for the enclosure and application of heat to a vessel such as a still Whose centre line is vertically disposed, said setting comprising a vertical series of separate and concentric annular heating flues transversely disposed with respect to the vertical centre line of the vessel and of which the vessel forms the inner Wall, a vertical series of separate combustion chambers each of which communicates With one of the annular flues of the said series, a vertical Wall or pillar of irebrick in osition in front of the mouth of each o the said combustion chambers, and a separate outlet for the gases from each of the annular lues at the side of the setting opposite to that at Which the combustion chambers are provided, substantially as described.

PERCY MATHER.

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