US1585632A - Sediment remover for boilers - Google Patents

Description

`May 1s 1926. 1,585,632

E. L. ISAACS SEDIMENT REMOVER FOR BOILERS Filed Feb. 16, 1924 2 Sheets-sheet 1 May 18 Filed Feb. 1e. 1924 2 sheets-smet 2 Amm/fof? IPatented May 18, 1926. l l l UNITED STATES PATENT OFFICE.

SEDIMENT yRZEIMOVER FOR BOILERS.

Application filed February 16, 1924. Serial No. 693,221.

My invention relates to improvements in valve 21. The valve 21 is in turn connected sediment removers for boilers and has for to a pipe 22, the opposite end of which its primary object a device in which sediterminates in a check valve 23. Secured to ment from boilers may be removed either the check valve 23 is a nipple 24 which carby water or steam pressure. ries an elbow 25. This elbow is in turn 6o A further object is to construct a sediment connected to a -T 26, by means of a nipple remover in which the gathering or accu- 27. Carried by t'he T 26 is a pipe 28 which mlulat-ion of sediment around the blow-off extends through the flange 29 carried by the valve while being removed, is prevented. boiler and which terminates in' an L 30.

A still further object is to construct a Secured to the L 30 is a pipe 31; the pipe 3lv e5 sediment remover for boilers in which the passesthrough the ihead 13 and is provided sediment is remloved by a series of jets, said with jam nuts 32, one of which is located jets commencing to act in sequence from the von eithervside of the head 13 and said nuts blow-oli' valve whereby the possibility of are for the purpose of preventing any leak- 16 clogging the blow-olf valve by the accumuage between the water compartment 14 and 70 lation of sediment is prevented. l Smoke vbox 15.

My device is applicable to any type of T'he ,pipe 31 extends :rearwardly fto a steam boiler and for convenience sake will point over the sediment ring and has sebe, shown and described as attached toa cured to its rearmpst end an elbow 33. To

0 locomjotive or tractor boiler, as this type of this elbow is secured one end off'a pipe 34, 75 boiler is more apt to have sediment accuthe opposite end of which terminates in a T mulation than a stationary lboiler where 35. Secured to the T are pipes 36 and 37 there are possibilities of at least a partial which carry elbows 38 and 39. Secured to clarifying of the water used therein. t-'he elbow 38 is a pipe 40 which carries an In the drawings: elbow 41, this elbow in turn carrying the 80 Fig. l is a side elevation of a locomotive pipe 42, to the free end of which is secured boiler with parts broken away and in sec an elbow 43 in which the pipe 44 is setion showing my device in position;v cured. The free end of the pipe 44 is bent Fig. 2 is a vertical section taken on the outwardly, as indicated by the numeral 45,

line 2-2 of Fig. 1 looking toward the left; and t'his outwardly bent portion is pref- 85 Fig. 3 is a ho-rizontal central section taken erably reduced in diameter, the purpose of through the boiler and fire box with the which will be explained in detail later. tubes removed showing my device in posi- The elbow 39 carries va pipe 46 whichhas tion; an outwardly bent portion 47 similar in Con- Fig. 4 is a perspective view of a portion struct-ion to the end 45. It will be noted o0 of my device as removed from the boiler; from Figs. 3 and 4 that the out-turned ends Fig. 5 is an enlarged longitudinal section 45 and 47 of the pipes 44 and 46 terminate of oneof the nozzles employed; closel together and extend outwardly and Fig. 6 is an enlarged side elevation of the are in direct alinement with the opening in valve housing; the sediment ring 11 which communicates 9o Fig. 7 is an end view of Fig. 6; and with the blow-oil valve 48. The pipes 44 and Fig. 8 is an enlarged fragmental top plan 46 are provided with nozzles 49 which inview of t'he shield employed. cline downward and project toward the In the construction of my device I employ valve 48. The elbows 38, 39, 41 and 43 are 4o a boilerr9 which is equipped withvre tubes provided with nozzles 50 which are inclined 10o 10, a sediment ring 11, and a iire box 12. downwardly and project toward the corners Adjacent the front of the boiler 9 is a diaof the sediment ring 11. While the plpes phragm or head 13 which separates the 36, 37, 40 and 42 are provided with nozzles water compartment 14 from the smoke box 51 which incline downwardly and which ex- I'15. The boiler 9 is also provided with the tend in such a direction from the pipe 34 106 usual steam dome 16. Secured to the steam that the forces of water or steam passing dome 16 is a flange 17 in which a pipe 18 therethrough will be directed in a continuiS secured. The ipe 18 is provided with ous line around the sediment ring toward an elbow 19 whic also carries a pipe 20; the blow-oli' valve 48. In other words, the

'5o the free end of th-is pipe is secured in a nozzles carried by the pipes 36, 40, 42 and 11o water around two sides.

sediment and water however, meet directly at the blow-olf valve and are forced therethrough. It will be noted that the p- ipes 36, 37, 40, 42, 44 and 46 with the elbows connecting them, substantially form a loop disposed in the sediment ring.

Secured to the pipe 31 are-nozzles 52; these nozzles extend downwardly and rearwardly and are located on alternate sides ofthe pipe 31. In this way a greater space is covered by the nozzles than would be if the sameN were placed directly Located in the water chamber and at a distance above the pipe 31 is ashield 53. This shield is preferably concavo convex in form and is provided with a series of downwardly bent portions 54.V These dowJnwardly bent portions extend rearwardly; as illustrated in Fig; 1, .and are for t e purpose o-f preventing the sediment when stirred up from rising upward intothe `water chamber 14: l

The shield 53' is provided with lugs 55 by means of which the same can be attached to theboiler shell so as to prevent. its dislocation. f

Secured to the T 26 is a nipple 56 which is secured in a check valve 57. This valve has secured thereto' a'pipe .5S-which is in turn secured to a valve 59, the valve being attached to the branch ipe 60 of the injector pipe 61. The in]ector pipe is rovided with a valve 62 by means of w ich the flow of water can be controlled therethrough and a boiler check 63, the purpose of which is to prevent boiler pressure from entering'uthe,l ipe 61.

Within eac nozzle is secured aff'valve housing 64 which is provided with a stirrup or guide 65 through which the valve stem 66 of the valve- 67 extends. Secured over the end of the valve stem 66 is a nut68 and surrounding the valve stein and between the nut 68 and stirrup 65 is a coil spring 69. The valve housing 64 is of course provide with a seat, against which the valve 67 can be seated, and the purpose of the nut and spring is to regulate the valve. In other Words, adjust the valve 67 so thatl itsi'opening can "be made more or less sensitive. The' purpose cf this will be explained in detail.

The operation of my device is as follows- After the same has been installed within a boiler and the boiler operated for a cer--l tain length of time, a certain amount of sediment will lodge in the sediment ring and in the water chamber. remove this sediment by means of steam pressure, the valve 21 is opened which permits steam to pass from the steam dome underneath the pipe 31.

vthe nozzles 49 Jcommence to act,

44valves being lthe, last valve to open being the one carried d vtoward the bottom o the water naturally creates,

Vhen it is desired to through the pipe 22, check valve 23 and the various other pipe connections into the pipe 31. Itis understood of course, that the blowoff valve 48 has been opened just prior to the opening of the valve 21. The steam thus admitted will first pass out through the reduced ends 45 and47, and in passing througl the valve 48 speed up thepassage of water. 'Ilie openings in the reduced ends 45 and 47 'however are not sufficient to permit the steam to escape therefrom as rapidly as it passed through the pipes and 11i this way the'adjustability of the valves 67 is brought into action. rI`hese valves are set in the following `inanner--A's so'on vas a slight degree of excess pressure is created in the pipes 44 and 46, caused by the choking of the steam on account of .the reduced ends 45 and 47, that is, the valves located therein open up, and the jets issuing therefrom impinging on the bottom of the sediment ring' carry the sediment to the blow-off valve whereA it is carried away. Afterthcse valves have been opened, the valves in the nozzles on the cleaning piping will yield successively beginning with the nozzles adjacent to the valve 48, the nozzle loaded to yield progressively,

by the nozzle adjacent the diaphragm or head 13, it being understood, of course, that when the last mentioned nozzle is opened, all ofthe nozzles are in operation. In this way I accomplish a gradual'or step by-step cleaning of the sediment, commencing at the blow-olf valve and gradually advancing to the end of the boiler. This action pref -vents the possibility of a great amount of sediment being suddenly carried to the blow-off valve and clogging the same, which would be the possibility were all the nozzles opened simultaneously, or were the nozzle ladjacent the head 13 opened first.

The shield 53-has a tendency to prevent any sediment stirred up by the nozzles in the boiler from being churned or raised upward therein, due to the fact, that the ldownwardly bent portions have a tendency to direct the movement ofv these articles of sediment fptliel boiler, the steam passing throu lh a currentv therein and 4this current is also f deflected toward the bottom of the boiler and in being so deflected causes the shield to have what may be termed a Venturi action. that is, to draw fresh water down through the opehings in l not only have a tendency to increase the speed of the water but will also tend to remove any sediment from the top of the shield.

If it is desired to use water instead of theshield. This action will steam or in other words use the injector, the

closed, theA valve 59 not shown, placed in valves- 21 and 62 are opened and the-injector,

atb

action. In this instance, water pressure instead of steam is used through the cleansing system, but the resulting action will be exactly the same.

` y device may be used either in fire tube or Water 1tube boilers and is intended to remove sediment and is not for the purpose of removing a hard baked scale. It can however, be used to advantage with boiler compounds which soften and loosen the scale and precipitate it in the boiler in the form of sediment. f

It is to be further noted that the valves in the nozzles seat inwardly so that there will be no dan er of the boiler pressure unseating the valaifes and causing sediment to gather on the valve seats.

hile only steam and Water have been mentioned in this specification, thatany fluid, either gaseous or liquid, under It is also to be understood that during the washing of the boiler sufficient water is constantly supplied t-herein'to replace the water passing out through the blowolf valve and he consequent reduction valve is eliminated.

avin fully described what I c aim'is:-

1. A sediment remover for boilers coma pipe, a plurality of nozzlescarried valves located in said nozzles and loaded to be opened successively by fluid -my invention,

a uld under pressure to said pipe regulating said valves so as to permit sequential opening thereof by the pressure in said ipe 3. A sediment remover for oilers comprising a pluralityof pipes, a lurality of nozzles carried by said pipes, va ves carried by said nozzles, means for regulating said automatic rough said ipes `and said valves are eld open.

4. e combination with a boiler shell having a blow oli' valve thereon of a sediment remover mounted in said shell, said of boiler p-ressure due to the water passing through this f the blow olf valve and means for supplying a cleaning fluid under pressure to the sediment remover.

5. The combination with a boiler with a blow otl valve, of a sediment remover, said remover comprising a plurality of pipes extending around. the sediment ring of a boiler and terminating adjacent the blow-oli' valve thereof, and extending provided arranged as to create a continuous current to the sediment ring and around the interior thereof to the blow-oil valve, valves located d so -mamtamed whereby movement toward the blow-off parted to sediment in the sediment ring and mainportion while the blowoif valve remains open. l

6. The sediment remover of claim 5 in which the valves are that a pressureprogressively increasing from a predetermined valve is imminimum will be required to unseat the same.

7. The combination with a boiler of a sediment remover and means for connecting remover to a source of fluid under pressure; said boiler comprising a barrel, a sediment ring and a blow-off valve positioned to control 4the ldischarge from said ring, and said remover comprising a pipe disposed along the bottomv of said barrel, a second pipe looped around said ring and having to discharge 'luid sweep the sediment towards the sediment ring and the nozzles on the second pipe arranged to discharge fluid to force the sediment in directions to reach therbloW-oli' valve, each of said nozzles being provided with means to spread the stream of fluid being discharged therefrom.

V e combinati-on with a boiler of a sediment remover and means for connecting the remover to a source of fluid under pressure; said boiler comprising a barrel, a sediment ring and a blow-off valve positioned to control the discharge from said ring, and said remover comprising a pi e disposed along the bottom of said barr, a second pipe looped around said rin and having open ends adjacent said b ow-o valve, means connecting said pipes andA nozzles leo mounted upon said pipes and-arranged to discharge fluid from said source against the sediment in said boiler, the nozzles on the first pipe arranged to discharge fluid to sweep the sediment towards the sediment ring and certain of the nozzles on the second pipe being arranged to discharge Huid merely to stir up the adjacent sediment in the corners and the rest of said nozzles to stir up the sediment adjacent thereto and cooperate in forcing the stream of sediment in t directions to reach the blow-off valve.

9. A cleaner comprising a pipe, a plurality of other pipes arranged to form a loop, means connecting the tiret-mentioned pipe to said loop, and a plurality of nozzles mounted oneach pipe, the nozzles on the first-mentioned pipe disposed on opposite sides thereof and arranged to discharge forwardly thereof and parallel thereto, and the nozzles on said/loop arranged to discharge outwardly o said loop, certain of said nozzles disposed to discharge forwardly with respect to the pipe carrying the same, and

the rest of said nozzles arranged to discharge laterally with reference to the respective pipes, and said connecting means being disposed at an angle to the first-mentioned pipe and to the plane of the loop.

In testimony whereof, I name to this specification.

ELZA L. vIsaacs.

have signed my

Images