US1116646A - Smoke-tube superheater. - Google Patents

Description

" P. THOMSBN.

' SMOKE TUBE SUPBHHEATEE.

APPLICATION HLED AUG. 21, 1913.

2% w mcwmf Patented-Nov. 10, 1914.

4 SHEETS-SHEBT 1.

INVENTOI? PETER THUMfSE/V MTORA/EVS P. THOMSEN.

SMOKE TUBE SUPBRHEATER.

APYLIOATION TILED AUG. 21 1913.

1 fifiqkcfio Patented Nov. 10-, 1914 4 SHHETSSHBET 2.

GMflua/MW MTORNEYS P. THOMSEN.

' SMOKE TUBE SUPERHEATER. APPLICATION FILED AUG. 21, 1913;

m1 165,6 4% Patnted Nov; 10, 1914.

Wm/Es's s: INVENTOR PETER THUMSEI/ 2 a4 m ITTORNEYS P. THO MSEN. SMOKE TUBE SUPER-HEATER. APPLICATION IILS'D AUG. 21,1913.

1 ,116,646.. Patented Nov. 10, 914

'I\SHE}ITSBHEET .4

; WITNESSES:

23 7, .p m r'z zx T117 13 1 By I manners recruit THOMSE-N, or Cassst-witnnmvisnonLs. GERMANY, .assIeNon IO scmutntr *sens HEISSDAIVIPEGESELLSCRAFT M. :s. H., or CASSEL-WIL- HnLMsHoI-In, GERMANY, A oonrolm'rron or GERMANY.

SMOKE-TUBE SUIPEEHEATE'JR.

talents.

To all whom it may; normcrn Be it known that l, ln'rnn THOMSEN, a subject of the King of Prussia, Emperor of Germany, residing at Cassel-ld ilhelmshohe, Germany, have invented a certain new and useful improvement in Smoke-Tube Superhcaters, of which the following is a speclfication.

My invention relates to steam superheaters which are known as the smoke tube type and is particularly applicable to such super heaters when used in connection with steam locomotives.

My invention relates particularly to the arrangement of the ends of the superheater elements as they come out of the line tubes and go to the superheater headers. lln superheaters of this type it is usual to arrange the superheater elements in a plurality of rows of fine or smoke tubes and to carry the ends of said elements either up or down, to the right or to the left, to the superheater headers with which they must be connected. In some cases, instead ol -carrying all of the ends in the same direction, the saturated ends have beencarried in one direction to a suitable saturated "header, while the super heated ends have been carried in the opposite direction to the superheated header. in super-heaters arranged as just (let-:rrilml, the ends of the several elements usually cover one another, as viewed from the front of the boiler, so that while each individual element may be removed, the elements may only be removed in a certain definite order. To remove the last element of a certain row, that is the element whose ends lie nearest; the

tube, it is, therefore, necessary to first remove every other element of said row.

It is the object of the present invention to diminish this difliculty.

The invention accon'lplishes the specified object by arranging the super-heater elements belonging to each row oi flue tubes in two groups the ends of which are so carried to the header that the ends of one group leave toward one side of the row, while the ends of the other groiilp leave toward the other side of the row. In. accomplishing this the ends of the elements are so bout that any I element of one group may he removed from the flue tubes without disturbing; any ele ment the other group. As a consequence Specification of Letters Patent.

Application filed August 21, 1913.

Fatented Nov. 10, 1914 Serial No. 785.828.

of this arrangement the several elements of a given row are no longer dependent upon one another but only dependent upon the elements of the particular group to which it belongs. In a row having four elements, therefore, it is never necessary to disturb more than one other element in order to re move a. given element.

; The arrangmnent of this invention is especially applicable to such superheaters as have their elements in enlarged tlue tubes which are usually made to contain four lengths of superhcater tubes side by side. In super-heaters so arranged, the ends of the elements may be conveniently connected directly to the steam headers by means of screws or flanges, so that an individual ele ment is very easily removed. But even in superlnzaters having; the elements in Hue tubes of normal diameter, this invention serves a very useful purpose. In such superheaters it would be diflicult to connect the clen'icnt ends to the steam headers by reason oi. the lack of suthcient space for screws and flanges or other connecting devices. It is possible, however, when small fine tubes are used, to carry the superheater element ends to intermediate steam chambers or sul h elders which thcn'lselvcs are directly fastened. to (hennain steam headers. Or, the ends oi the small tube superheater elements may be joined directly to the main steam headers by expanding, welding or in some equivalent manner.

My invention will be better m'lderstood with reference to the drawings in which Figure l re 'n'escnts an elevation taken from the front oi part of a boiler embodying one form oi my invention; Fig. 2 represents a part elevation taken along the line 22 of Fig. 1; Fig. 3 represents a view, similar to Fig. 11, showing another embodiment of my invention and Fig. 4- a view, similar to Fin. 2, taken along the line i -4i of Fig. 3; Fig. 5 showing a third embodiment oi my invention and Fig. (5 a view similar to Fig. 2 taken along the line l'3--6 of Fig. 5; Fig. 7 represents a view similar to Fig. 1 showing a fourth en'ibodin'lent oi my invention and Fig. 8 a view similar to Fig. 2 taken along the line 8--8 of 7 Fig. 9 represents a view similar to Fig. 1 showing a fifth embodi- IOPI'PSGTHTS a view, similar to Fig. 1,

- ment of m invention and. Fig. a view similar to ig. 2 taken along the line 10l0 of Fig. 9; Fig. 11 represents a view similar to Fig. 1 showing a modification of my invention in which two rows of flue tubes take the place of one row of the earlier em bodiments, and in which each superheater element lies in two ubes, one belonging to one row of flue tubes and the other belonging to an adjacent row of flue tubes; Fig. 12 represents a view similar to Fig. 2 taken along the line 12l2 of Fig. 11; Fig. 13 represents a view similar to Fig. 1 showing still another modification of my invention and Fig. 14 a view similar to Fig. 2 taken along the line 1 l-1 l of Fig. 13.

Referring to the drawings, (Figs. 1, 2) the saturated and superheated headers a and I) lie respectively above and below the vertical row of superheater elements and transversely thereto. The flue tubes of this row are designatedrespectively as 0, c, d and d, c and 0 each containing a single superheater element 6 and 6' respectively, and d and d each containing a single superheater element f and f respectively. The elements e and e belong to one group and the elements f and f to another group. In this arrangement it will be noticed that the two ends of the uppermost superheater elements 6 are carried to the left of the row, one end 9 going up to the saturated header a and the other end 9 down to the saturated header 6. The ends 71. and h of the other element e belonging to this group are also carried to the left, but behind the ends 9 and g of the element a, and go up and down respectively to the saturated and superheated headers. Similarly, the elements f and f have their ends carried to the right of the row and extend up and down to the headers, the ends of one element lying behind the ends of the other element. Theelements e or j" may be instantly removed as soon as the connecting means binding them to the headers is released, while elements e or f may be. removed similarly by first removing either 6 or element'f as the case nlay be. in this modification each element lcoinprises four parallel lengths of super-heater tube contained in a single flue tube.

In the modification shown in Figs. 3 and 4 each element comprises four lengths of su erheater tube, two lengths in one flue tu e and two lengths in an adjacent flue tube. Another similar element also has two lengths in one of these flue tubes and two lengths in the other flue tube. Thus each flue tube contains as before, four superheater element lengths, two lengths belonging to one element and two lengths belonging to another element. In this modification the element e has two of its lengths, in the upper flue tube and its other two lengths in the next lower flue tube the upper end being carried to the right and up to the saturated header a and the lower end being carried to the right and .down to the superheated header '1). The other element of the group,

6', has two of its lengths on the right of.

the third flue tube and two of its lengths on the right of the bottom flue tube, the upper end being carried to the right and up to the saturated header a, and the lower end to the right and down to the superheated header 1), but both upper and lower ends lying behind the corresponding ends of element 0. In the same way the elements f and f lie respectively in the top two and the bottom two flue tubes on the left of the row with their ends carried out to the left and up and down to the headers, one set of ends behind the other.

In the modification shown in Figs. 5 and 6, the row contains but three tubes, each containing four lengths of s'uperheater pipe belonging to a single element. The two upper flue tubes contain respectively the'two elements-e and e of one group, while the bottom flue tube contains the element 7 which is the only element of the other group. The ends of elements e and e belonging to one group are carried to the left and up and down respectively and in front of one another as are the elements 6 and e of Figs. 1 and 2, while the ends of the element f are turned around to the right and up and down. The element 7 has clearly nothing to interfere with its removal and as to the elements e and e, the latter can be interfered with only by element 6 and may be removed after first removing said element.

In the, arrangement shown in Figs. 7 and 8 both headers a and b are arranged above the row, the upper two flue tubes containing thetwo elements e and e belonging to one group, and the other flue tubes the elements f and f belonging to the other group. Each element comprises four tube lengths, two of said lengths lying in one flue tube and two in the adjacent flue tube.

Referring to Figs. 9 and lO-both headers 'here as in the previous modifications comprise four tube lengths. The upper two flue tubes contain two elements of two groups, the elements lyingon the left with two of its lengths in the top tube and two of its lengths in the next lower tube, while the element f lies similarly on the right. The third flue tube contains the four lengths of the element 6 and the fourth of the tube contains the four lengths of the element 1. The ends of each element lie in a single plane but these planes are all diflerent to one another so that the ends of no one element lie in front of the ends of any other element. Any element, therefore. may be removed without interference with any other element of either group.

In the arrangement shown in Figs. 11 and ii ll 12 the two headers are again, as in the earlier modifications, arranged respectively above and below the double row of fine tubes. t should be noted that in this arangemeht, two sets of vertically disposed flue tubes of a double row are staggered relatively to one another. Each element as, in all the other modifications, has four tube lengths, but in this arrangement two lengths lie in a tube on one side of the double row, while the other two lengths lie in the lower tube on the other side of the double row. T he pairs of tlue tubes belonging to the in dividual units may be designated as 1, 2, 3 and 4. The element'fehas two lengths in each tube of pair 1., the two ends being carried respectively right and left and up and down to the two headers. The element e lies in the set of line tubes 2, with its ends respectively behind the ends of the element, e and going to the headers similarly. Elements f and are arranged respectively in the sets of flue tubes 3 and 4, the end of said elements being respectively behind one an other and extended to the right and left and up and down, but to the left and right respectively of the corresponding; ends of elements e and c.

In the modification shown in Figs. 13 and 14 there are S flue tubes in a row, these flue tubes being assumed to be normal diametcred tubes so that each tube is capable of containing only two lengths of superheater elements, each element however comprises four lengths of super-beater tube as before so that each element is disposed in each of two flue tubes, two lengths lying in one flue tube and the other two lengths lying in the next adjacent tube. The line tubes may be designated as 5 to 8"inclusive. The upper four flue tubes contain the two elements a and e of one group while the lower tour flue tubes contain the two elements f and f of the other group. The ends of the ole merits or each group lie behind one another and are extended to the left and right respectively and up and down to the headers. llo individual element may be removed without at the same time removing the other element of the group, but no element of one group interferes in any way with an element of another group.

llavingr described my invention, I claim:

1. ll smoke tube superheater comprising, in combination, a boiler provided with parallel rows of smoke tubes, sets of superh ater elements at least three to a set an ranged in rows corresponding; to smoke tube rows, and steam collectors for saturated and superheated steam respectively, the ends oi the superheater elements being joined to said collectors and all the said elements of a given set having" their ends arranged in one or the other of two groups and in dill"- l erent planes parallel to the smoke tube rows so that any element of a given group may be inserted or removed without interfering with any element of another group.

2. A smoke tube superheater comprising, in combination, a boiler provided with parallel rows of smoke tubes, sets of superheater elements at least three to a set arranged in rows corresponding to smoke tube rows, and steam collectors for saturated and superheated steam respectively, the end of. the su erheater elements being joined to said co lectors and all the said elements of given set having their ends arranged in one or the other of two groups and in dit ferent planes parallel to the smoke tube rows the ends of said two groups being bent oppositely but parallel .to the plane of the flue tube rows, as and for the purpose described.

3. A smoke tube superheal'cr comprising, in combination, a boiler provided with par allel rows of smoke tubes, sets of superheater elements at least three to a set arranged in rows COITQSPOIXCllIlg to smoke tube rows, and steam collectors for saturated and superheated steam respectively, the ends of the-superheater elements being; joined to said collectors and all the said elements of a given set having their ends arranged in one or the other of two grou is said ends of said two groups being bent to lie in different 'ilanes parallel to the smoke tube rows, thereby lying side by side they en ter the steam collectors, and connecting means extending between adjacent ends in. different planes for uniting said ends to the steam collectors.

l. A smoke tube superh atcr coi'nprising, in combination, a boiler proviitlcd with par allel rows of smoke tubes, sets of super heater elements at least three to a ar ranged, in rows corresponding to smoke'tubc rows, and steam collectors for saturated and superheated steam respectively, the ends of the superhcater elements being joined to said collectors and all the said elements of a given sethavinptheir ends arranged in one or the other oi two groups the ends oi all of said groups being bent to lie in dillerent planes pa allel to the smoke tube rows thereby lying side by side as they enter the steam collectors, there being at least twice as many planes for the element ends as there are rows of smoke tubes, and connectingmembers perpendicular to said planes, extending between adjacent ends in dili'eront planes for uniting said ends to the steam col- 5. A smoke tube superheatcr eon'iprisii'ig, in combination, a boiler provided with paw allel rows of smoke tubes, sets of superheater elements at least tires to a set arranged in rows correspoiu'ling to smoke tuberows, and steam collectors for saturated and superheated steam respectively, the ends of lid lllltl Mill Illlli the superheater elements being joinsd to said perpenicular to said planes and having cencollectors and all the said elements of a given L121 bolts going. into the steam collector. set having their ends arranged in ens 0. the ln iestimany whereof, I have hereunto set other of two groups the ends of all of said my hand in the presencs of two subscribing 5 groufislbeing bent i130 liebin diifsrent planes witnesses.

am e .00 me smo re tn 6 rows thereb 1 ng side by side as they enter the steang cc PETER THOMSEN' lectors, there being at Least twice as many Witnesses: planes for the element ends as there are rows JULIUS FRANK, 10 of smoke tubes, and connecting members 1 GUSTAV RETTIG.

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