US1369774A - Cleansing device for water-tube boilers - Google Patents

Description

L. s. BETANCOURT. CLEANSING DEVICE FOR WATER TUBE BOI LERS.

APPLICATION FILED MOV.13, I918.

hmma. a1. 1., mm.

3 $HEETSSHEET l.

L. s'; BETANCOURT. CLEANSING DEVICE FOR WATER IUBE BOILRS2 'PatentedMar. 1, 1921.

-L. s. BETANCOURT. CLEANSING DEVICE FOR WATER TUBE BOILERS APPLICATION FILED Ni. [3, 1918.

LEOPOLDO SUPERVIELLE BETANCOURT, DE HABANA CUI 3A CLEANSING DEVICE FOR WATER-TUBE 3011.33

ascents.

\ Specification of I etters .Pate'fit.

- Patented Mar. 1,1921.

Application filed November 13, 1918. Serial No. 262,331.

7'0 all 201cm it may concern Be it known that I, Lnoronno Surnuvrnnnn BnTANcoInrr, a citizen of the Republic of (luba,-and resident of Habana, Republic of Cuba, haye invented certain new and useful Improvements in (.lleansing- Devices for "Water-Tube Boilers, of which the following is a specification.

This invention relates to devices for cleansing water tube boilers, especially to the cleansing device or mechanical blowing' pipe forming the subject-matter of my mpending application-filed November 2nd,

1917. Serial No. 199,940 and its object is to provide certain improven'ie nts in said cleansing device with the aim'of simplifying the construction of their various parts, thus 'aid ing its mounting and operation, and thereby obtaining a more economical device.

Another object of the invention is to .provide means connected with the cleansing device in the furnaces of the water tube boilers in order to protect such devices against the injurious action of the fire while same are inoperative or not working.

In the annexed drawings? Figure l is a perspective view showing the cleansing device provided with the improvements forming the subject-matter of this invention.

F ig. 2 is a longitudinal vertical section showing the inside of the same device.

Fig. 3 is a detail showing in a front elevation the central part of the steam inject-v ingx tube.

F ig. Q is an upper view of the cleansing device in operative position mounted through a wall of the boiler furnace.

Fig. 5 is an inner front view of the same, cleansing device in operative position.

Fig. 6 is an upper view of the cleansing device'in its inoperative position mounted through the wall of the boiler furnace.

And Fig; 57 is a partial outer front view of the furnace wall through which the cleansing device is mounted.

This improved device comprises a horizontal cylindrical chamber 1 opened on both ends and provided' at its bottom with an extension 2 having a double wine 3 for securing same by means of screws 4 on the web of an I beam 5 scar-fed in horizontal i position in the lateral wall 6 of a furnace for awater tube boiler, through an opening; 7 formed in said wall and lengthwise of which opening said cylindrical chamber is placed. braid chamber has at a side and near its outer end an inlet 8 for supplying steam and that outer end is widened so as to form packing box 8 within which a plurality of leather washers 5) fit and which is closed by a threaded cover 10. These washers 8 and cover 10 are crossed at their centerby a stem 11 having on its outer end a handle 12 arranged through a hole thereof on the re- 6 duced end of said stem and secured by a nut 13 which is threaded on said threaded end, and the inner end of said stem ll is threaded in a tapering joint piece 14 which is provided with a plurality of side open- 70.

lugs 15 and the portion of larger diameter of said piece 14 is threaded on the inner end of a cylindrical tube 16 concentric with respect to chamber 1 and with respect to stem 11 and extendiru through the other open end of said chamber 1 and movable lengthwise through an opening in the inner end 17 of said chamber 1. ()n the outer end of said pipe 16 is thrcadedly mounted by one of its mouths' thc three month casing or tubular T-shape joint 18, through the other two plain mouths of which is revolubly mounted the injecting tube 19 formed in single piece and provided within said casing with two pairs of .openir'igs 20 and 21.. The portions of tube 1!)- that are outside of casim '18 are covered with metallic jacketin tubes '22 to protect the tube against the action of the fire, and in transverse holes I extended in longitudinal line on the tube 19 and jacketing tubes 22 there are removablv arranged the small nipples 23 which serve to dlscharge theqets of steam. These nipples 'are arranged in such a manner that one off them, indicated at 23 which is adjacenttothe plain lower mouth of casing 18, may strike during the rotary movement of tube 19 with a butt formed by a semicircular flange 18 projecting downward from the "lower portion ofcasing l8 surrounding the plain mouth and'which is ooncentrical tov tube 19. On this tube and immediately above the upper plain mouth is secured a beveled crown-gear 24 which meshes with a beveled pinion 25 fixed on the end of a horizontal shaft 26 supported in a bearing formed in a bracket 25 projecting upward from the end of the casing 18 in which tube 16 is threaded and in another bearing formed in an extension of handle 12. Said shaft 26 is provided at the outer end thereot with a hand-wheel 26 for its operation. The injecting tube 19 is closed at its ends by means of threaded caps 27.

Opening-7 of side wall 6- of the furnace wherein the cleansing device is lodged, isv

widened at the inner part of the wall and at a certain distance from the inner face of this wall are formed lateral recesses 28 for receiving the half-doors 29, 30 which are vertically arranged for closing the opening 7 and are mounted on vertical shaft hinges 31 whose bolts are scarred in the wall-7.

Preferably the half-doors 29, 30 do not fit close together, but to one of them is attached a covering plate 32 for effecting the closure. In this locked position, said halfdoors 29, 30 are resting against the shoul- -ders of said recesses 28 and these halfdoors are tied together by means of a loose transverse chain 32 connecting two eyebolts 3a fixed to the outer face of said halt-doors and said chain passes through behind the injecti tube 19, whereby is provided an automatic opening and closing for said half-doors. ()pening 7 is closed on the inher side by means of a pair of vertical plates 35, 36 arranged in the same vertical plane and fitting at their edge in a small recess provided in the outer'face of wall 6, and said plates 35, 36 are connected togetler b means of two lateral lugs 37 and 38 laterally projecting from each plate'and which are superposed two by two and are connected by meansof a screw 39, each late presenting on its face ahandle 40 ancl on the inner adjustingedge a semicircular notch 42 reg-f istering with each other so as-to form a circular opening which serves as a passage for the cylindrical chamber 1, and the notch 42 of the'upper plate 35 is extended upward forminga vertical upward passage 43 which terminates in an arched-shaped passage 44, so as to allow the forward, backward, lateral rocking motion of shaft 26.

. lnits inoperative position the cleansing device is placed partly within the narrow part of the opening 7*and partly outside of wall 3, and in communication with the furnace chamber by means of half-doors 29, 30. in these conditions, In order to operate the cleansing device, the handle 12 is grasped with thehand-and a pushing motion toward the interior of the opening 7 is imparted thereto whereby the injecting tube 19" in striking againstthe half-doors 29, 30,

will push in same, thus separating them; as

much as'req uired 'for giving passage to the same injecting tube 19, casing 18, and gears 24, 25,. as it is shown in Fig. 4; of the draW- ings, the half-doors'29, 30 being. held in that position' by means'of the transverse.

chain 33 connecting them. Then the injecting tube 19 is arranged in the: proper inclined position by laterally rocking the handle 12, and in order to rotate the injecting tube 19 on the casing 18 to spread the steam jets to either side and between the water tubes 45 of the boiler, the hand lever 26' on shaft 26'whichgives motion to the gears I 24,- 25 is caused to be rotated, the turning movement of tube 19 being limited by butt 18" against which the small nipple 23 strikes. Once the operation of the device has been completed, the handle 12 ispushed backward, whereby the, injecting tube 19 returns with the casing 18 and the annexed part of the device, passing first between the two half-doors 29, 30 until striking chain 33 and causing thus same to return carrying with it the two half-doors 29, 30, until the small covering plate 32 may complete ly close the opening between the two halfdoors, and thereby the opening 7 being com.-

pletely closed, and the device protected 'vention, which'is as claimed in the appendfor rotary movement, said tube projecting from the inner end of said chamber, an operating stem attached to the outer end of said tube, a T at the inner end 'of s'aid'tube, a blower header rotatably attached to said T, a lever attachedto said'stem, a shaft mounted in a bearing in said lever and also in a bearing on said T, said shaft being arranged exteriorly of said chamber, and gears conmeeting said shaft and the blower header to enable the latter to be turned by said shaft.

2. A cleansing device for water tube boilers comprising a chamber having means to admit fluid thereto, a tube mounted for longi tudinal movement in said chamber and also for rotary movement, said tube projecting from the inner end oi said chamber, an oper ating stem attached to the'outer end of said tube, a T at the innerendof said tube, a blower header rotatably attached to said T, a lever attached to Sfl-Hl stem, a shaft mountaoogm l 3 cm 111 a bearing in said le-vsr and. also in a header, and means mounmd vii saki chum;- v nearing on said '2', said shaft being arranged ber attthe inner end thereof to coact with-- extet'iox'ly of said chamber, and gears consaid lever and limit this extent of rocking 1a: necaing said shaft and the blower header to, movement of the blower header,

0 enalrfie flue iattor Lobe turned by said shaft, In witness whereof affix my signature.

said 'R.zmd bibwez' header having means to 1 limit taming movement of the blower LEOPOLW SUPERVIELLE BETARCQWT-

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