Патент USA US2110364код для вставки
March 8, 1938. , c, E, |DEN _ 2,110,364 AUTOMATICFLUE BLOWER Original Filed Aug. 6, 1928 3 Sheets-Sheet 1 47» ' 4H Inventor Charles E .146” BJQMM Attarnqy March 8, 1938. , c. E. lDEN 2,110,364 AUTOMATIQ FLUE BLOWER Original Filed Aug. 6, 19-28 5 Sheets-Sheet 2 7719.2. . 40, "“ 4 la, 24 Inventor ll’harlé Gillian Marc 8, 1938. c, E, [DEN - AUTOMATIC FLUE \_ 2,110,364 BLOWER ‘ Original Filed Aug. 6, 1928 7117.5. 3/ ' I '3 Sheets-Sheet 3 777.6. /, so" Inventor ‘ 5/ 5/ Charles 2.162612 I Attorngy Patented Mar. 8, 1938 2,1103% usirso, STATES PATENT I QFFEQE 2,110,364 AUTOMATIC FLUE BLOWER Charles E. Iden, Newark, Ohio, assignor to Dia mend Power Specialty Corporation, Detroit, Mich, a corporation of lVIichigan Application August 6, 1928, Serial No. 297,772 Renewed January 22, 1937 10 Claims. The present invention pertains to new and use ful improvements in soot blowers and the same relates more particularly to an automatic mech anism for cleaning by ?uid blast the heat ex <5 change surfaces of a boiler, which heretofore has necessitated considerable time and expense in the removal of soot and other foreign matter which obviously reduces the efficiency of the boiler. '10 The present invention presents several novel improvements over Patent No. 1,561 004 issued to John T. Lemon on November 10, 1925. The prin ciple involved in this invention is substantially the same as underlying the subject matter in the 15 above patent, yet the same accomplishes numer oust objects and advantages thereover. An important object of this invention is to pro vide a novel means whereby the nozzles through which the air blasts are delivered are oscillated 20 and wherein means associated therewith permits the more constant e?icient operation thereof than in devices similar in nature. Another primary object resides in the provision of an electro-magnetically operable shut off valve 25 in the ?uid supply line operable in synchronism with the means for actuating the nozzle whereby the air supply will be shut off during such a cycle of operation. 30 provision is made for means whereby a closed circuit will be maintained to the electro-mag~ netically operated shut off valve during a prede termined interval of time, which interval of time is regulated by a dash pot structure in operable ‘ The present mechanism also presents means whereby the movement of the nozzle is reversed so as to con?ne the blasts of ?uid within a cer—' tain predetermined area. 40 In the drawings: through’ the step down gear mechanism in mesh with the motor for driving the same, ‘ Figure 6 is an end elevation of the step down unit, ' ~ Figure ‘7 is a sectional view through one of the 6 ball bearing eccentrics employed for‘driving the nozzle, Figure 8 is a sectional’ view of the eccentrics at substantially right angles to the section of Fig ure '7, and 10 Figure 9 is a view similar to Figure '7 showing a slightly modified form of construction. Referring to the drawings wherein like numer als designate like parts one end of a conventional boiler structure is shown in the accompanying l5 drawings and designated by A. The usual water tubes are located within the boiler in the usual spaced manner and between which the smoke from the ?rebox passes for heating the water circulating therethrough. A 20 sleeve 2 is ?xed to the inner end of a blower pipe l having a nozzle Ia and is provided with an ex ternal circumferential extending ?ange 3. A packing gland '5 is keyed to the sleeve 2 by a set screw 4a which passes through a slot 4*) in the hub of the packing gland while a coiled spring 5 is interposed between the ?ange 3 and said packing gland. _ Among the remaining objects of the invention 35 association with such closing means. (Cl. 122—392) _ Referring now to Figure 2, an air storage tank 6 is replenished by a pipe line ‘i extending from a compressor or the like. Any number of such storage tanks may be provided for supplying air through conduits 8 to a valve structure 9. This structure consists of a body I 0 having a relatively thick wall H at one end thereof. . A shaft I2 is journaled through the wall I I and has a disc valve element l3 keyed to its inner end and adapted for snug contact with the inner side of the said wall H. The ratchet wheel I4 is keyed to the outer end of the shaft I2, while the valve element i3 is formed with ,a port l5 registrable with ducts l6 Figure 1 represents a side elevation partly in section of a conventional boiler structure equipped with the novel automatic blower mechanism, Figure 2 represents diagrammatically and in 45 partial sectional View certain details of the in vention. Figure 2A is a diagrammatic fragmentary ele vational view of a portion of the structure shown in Figure 2. wheel l8 rotatably journaled thereon. 50 Figure 3 is an outer side elevation of the ratchet is provided with a collar l9 at one side, while .an means employed for oscillating the nozzle, Figure 4 is a fragmentary view showing the ratchet means in sectional View and taken sub~ stantially on the line 4—4 of Figure 3, 55; Figure 5 is an enlarged vertical sectional view annular wall 20 projects concentrically from the opposite face of the wheel and is adapted to extending through the wall ll. Pipes~ l1 connect at one of their ends to the wall II and have communication with the ducts it‘ while their opposite ends have communica tion with the blower pipes I, The nozzle end of each pipe I‘! has a ratchet The Wheel engage over the ?anged end of the sleeve-2 and a portion of the packing gland 4 in the manner as shown in Figure 4. 55 2,110,864 2 . Q The wheel 18 is rigidly connected to the packing gland 4 by the employment of tie bolts 2|. A ‘lever 22 has one end journaled to the collar l9 while a pawl 23 is pivoted to the lever 22 slightly outwardly from thelperiphery of the wheel I8. The pawl is of arcuate shape and tapered at '10 15 20 25 30 35 40 lever 69 which is provided with a pawl 10 engage able with the teeth of the ratchet wheel l4. The time limit relay ‘H has a plunger 12 oper able within liquid or suitable matter within a dash pot. A rod 13 extends upwardly from the plunger and above the top of the dash pot, the each end, the respective ends being alternately same being provided with a head 14. The top of the dash pot is provided with a engageable with the teeth of the wheel l8. A lug 24 projects outwardly from the pawl 23 and across pair of spaced upstanding arms 15—l5 which are substantially V-shaped at their upper ends. 10 the'outside face of the ratchet wheel I8 for en A lever 16 is pivoted adjacent one end to the top gagement with the pintles 25-—25. These pintles may be engaged in any pair of of thedash pot ‘II and this end portion is adapted the openings 26 to limit the oscillatory movement to engage in an elongated notch 13*‘ in the plunger of the nozzle I. An arm 21 projecting from the rod 13. A spring 168 tends to hold the ‘lever 13 pawl 23 in an opposite direction from the lug 24 in .a substantially horizontal position so that this 15 lever does not retard downward movement of has an equalizing spring 28 connected thereto. For actuating the nozzle and other phases of the plunger rod 13 and is also always in position the invention, a motor 29 is supported upon .a to be engaged by a lug 11 about to be described. suitable housing 30 is geared by a pinion 3| to a . It will be apparent that the spring permits a gear 32 on a drive shaft 33 journaled through suf?cient upward movement of the lever to permit the housing 30. A worm 34 keyed to the shaft passage of lug 11 past the lever during upward movement of the lug. 33 meshes with a gear 35 on a countershaft 36 A contact member 18 on the rod 68 is .adapted for driving a worm 31 in mesh with a grooved to contact with the contact 19 located adjacent gear 38 on a supplemental shaft 40. ‘ A disk 4| at one end of the shaft is provided to the rod 68. In the operation of the present mechanism, the motor 29 drives the gears dis with an eccentrically disposed pin 42. An elon closed in Figure 5 which reduce theoriginal speed. gated shaft 43 is journaled through bearing mem bers 44 secured to the boiler wall in the manner of the armature shaft so as to slowly rotate the shaft 43. as shown in Figure 1. ' The'slow rotation of the cams 49 is converted The ratchet wheel keyed to one end of the shaft 43 is designated by numeral 45 and is operable into reciprocatory movement of the connecting between the yoked end 46 of a connecting rod rods 54. The pawl 23 will cause the movement 41, the opposite end of the connecting rod 41 of the ratchet l8 and consequently the nozzle l being connected to the eccentrically disposed until the lug 24 engages one of the pintles 25, whereupon the position of the pawl 23 is reversed, pin 42. Apawl 48‘ is pivoted between the legs of the obviously resulting in the movement of the ratchet yoke 46 and is adapted for normal vengagement [8 in the opposite direction. with the teeth of the ratchet wheel 45. At cer tain spaced intervals on the shaft 43 eccentrics In this manner the ?uid blast is delivered over a certain predetermined area which may be varied 49 are arranged. a The structure consists of a hub 58 eccentri cally mounted on the shaft 43 and the rim 5 I, the rim and the hub being formed with grooves to provide a raceway for the ball bearing 52. A boss 45 53 is formed on the rim 5| andis formed with the split recess to receive one end of the connecting rod 54. The opposite end of the connecting rod 54 is adapted to be connected to the free end portion .50 of the lever 22 in the manner as shown in the drawings. I ' _ 'Interposed between the valve body I0 and the air supply conduit 8 is a valve body 55 provided with a partition 56 formed with a valve seat there— 55 in. A; piston 51 preferably provided with suit able packings is operable within the valve body 55 above the partition 56 and is provided with a depending tube 58. * This tube depends below the opening in the 60 partition 56 and is provided with a valve structure 59 at its lower end seatable on the partition 56. A housing 6|] is arranged upon the valve body 55 and has a solenoid 6| located therein. A valve memberBZ is normally ‘seated within the lower 65 end' of ‘the tube 58 by the tension of the spring 63. A stem 64 extends from the valve member 62 and has its free end disposed within the mag netic ?eld of the solenoid 6|. On the shaft’ 43 the disk 65 is provided with a 70 plurality of pintles 66 projecting at one side there These‘ pintles are adapted to successively . of. engage the foot 61 of an elongated rod 68 which has a bearing in a suitable guide bracket 68“. 75 The upper end of the rod .68 is connected ‘to a » i by interchanging the pintles 25 with respect to the openings 26. ‘ ' The rotation of disc 65 will effect an elevation of rod‘ 68 by one of the pintles 66 and will effect a movement of ratchet wheel l4 to register port l5 of valve l3 with one of the ducts I6 for sup plying cleaning ?uid to one of the blower pipes. During this movement of the valve I3, valve 59 will be closed, by virtue of the fact that contacts 18 and 19 are arranged to be out of engagement at this time. As the particular pintle passes from beneath the foot 81; the connecting rod '68 will drop, at which time contact 18 ‘will engage contact 19 and rod 13 will be elevated by lever 16 to close the circuit between contacts 15-45. Thus a circuit will be closed through the solenoid 6| to effect an opening of small valve 62 which will permit air to pass to a point above the piston 51 whereby the main valve will be opened. Obviously, when the main valve is opened, air will pass'to the body I0 and through one of the pipes H to one of the blower pipes I. The device ‘H constitutes a timingmechanism for limiting the open position of main valve 59 to a predetermined time interval. Thus with the rod 68 in its lower most position and member 14 bridging the gap be tween contacts l5—-15, rod ,13 will move slowly downwardly, being retarded in its movement by the substance in ‘the dash pot. Movement of the rod 13;.m'ay be regulated as desired and after a predetermined time interval member 14 will have moved su?iciently to break the contact between members 15-—'l5 to thus de-energize the solenoid and permit valve 52 to close. The pressure above the pistonrwill slowly be relieved whereupon the 15 3 2,110,364 pressure of the air will close the main valve to cut off the supply of air to the body In before the next actuation of rod 68. The contacts 18 and 19 provide means for in suring a breaking of the circuit through the sole noid upon raising of the rod 58 in the event that movement of the rod 13 has been retarded to too great an extent, while valve 59 controls the pas sage of air to the body It) so that air is supplied 10 to each blower pipe for a portion only of the time that this blower pipe is connected to the body It] by the valve l5. In Figure 9 a slightly modi?ed form, of con struction is shown which may be conveniently 15 substituted for the eccentric hubs 50. Referring then more particularly to this ?gure of thedraw ings, it will be noted that there is mounted on the shaft 43’ a plurality of cams 90 which are spaced longitudinally of the shaft in a manner 20 similar to the hubs 50. Each rod' 54’ is provided at its lower end with a cup-shaped socket 80 in which is mounted a ball 8| arranged to engage the periphery of the cam‘, as clearly illustrated in the drawings. Thus the rods 54' are reciprocated upon 25 rotation of the shaft 43’ by virtue of the engage ment of the cams 90 with the balls 8|. For the sake of illustration, the invention has been described as being incorporated in a device for cleaning boilers. It will be understood, how 30 ever, that the inventive principles may be in corporated in devices for cleaning apparatuses similar to boilers, and it is to be therefore under stood that the term “boiler”, wherever used throughout the speci?cation and claims, is to be 35 construed as meaning a ?uid heater or heat trans 40 cording to a desired sequence, a movable shaft, mechanical connections between said shaft and blower pipes for moving the latter upon move ment of said shaft, and a step by step operating 10 connection between said valve and said shaft whereby said valve is actuated with a step by step movement in timed relation to the move ment of said blower pipes upon movement of said shaft. 15 6. In combination, a plurality of rotatable blower pipes, a rotatable shaft, mechanical con nections between said shaft and blower pipes for rotating the latter upon rotation of said shaft, a valve for controlling the flow of cleaning ?uid to 20 said blower pipes according to a desired sequence, and a mechanical connection between said shaft and said valve arranged to impart a step by step movement to the valve upon rotation of said shaft. 25 7. In combination, a plurality of rotatable blower pipes, a rotatable shaft, mechanical con nections between said shaft and blower pipes for actuating the latter upon rotation of the shaft, a valve for controlling the ?ow of cleaning ?uid to said blower pipes, means for actuating said valve upon rotation of said shaft, and means ac tuated by said last mentioned means for limiting the period of supply of cleaning ?uid to said blower pipes to a predetermined time interval. 8. In combination, a plurality of rotatable blower pipes, a shaft disposed adjacent said blow er pipes, means for rotating said shaft, a plural fer apparatus of any character, while the term “boiler cleaner” is to be construed as meaning a cleaner for any such type of apparatus. Having thus described my invention, what I ity of eccentrics mounted on said shaft one of said claim as new is: eccentrics being provided for each blower pipe, 4:0 _ 1. In combination, a movable blower pipe, a valve for controlling the ?ow of cleaning ?uid to said blower pipe, means for moving said blower pipe and for actuating said valve, and means con 45 trolled by said last mentioned means operating to cut off the supply of cleaning ?uid to said valve during actuation of the valve. 2. In combination, a plurality of movable blow er pipes, a header for supplying cleaning ?uid to 50 said blower pipes, a valve for successively placing each of said blower pipes in communication with said header, means for moving said blower pipes and for imparting a step by step movement to said valve and means actuated by said last men 55 tioned means operating to cut off the supply of cleaning ?uid to said valve during operation of said valve. 3. In combination, a plurality of blower pipes, a valve for controlling the ?ow of cleaning ?uid to said blower pipes, means for actuating said valve, and means controlled by said last men tioned means for limiting the period of supply of cleaning ?uid to each of said blower pipes to a means including a rod connecting each eccentric to its respective blower pipe, each rod being so connected to its respective blower pipe as to im part a step by step movement to the blower pipe upon rotation of the shaft, a header for supply 45 ing cleaning ?uid to said blower pipes, a dis tributing valve for successively placing said blow er pipes in communication with said header, means including a movable member for actuat ing said distributing valve from said rotatable shaft, and an auxiliary valve controlling the ?ow of cleaning ?uid through the header to the dis tributing valve controlled by said movable mem ber. 9. In combination, a movable blower pipe, a valve for controlling the ?ow of cleaning ?uid to said blower pipe, means for moving said blower pipe and for periodically actuating said valve, and means for limiting the supply of cleaning 4. In combination, a plurality of blower pipes, a valve for controlling the flow of cleaning ?uid to said blower pipes, means for actuating said ?uid to said valve to the periods when the valve 60 is not being operated. 10. In combination, a plurality of movable blower pipes, a valve for successively supplying cleaning ?uid to said blower pipes, means for moving said blower pipes and for periodically ac 65 tuating said valve, and auxiliary means operating to limit the supply of cleaning ?uid to said valve valve, and means including an electrically ac to periods when the latter is not being actuated. predetermined time interval. 65 means for controlling the ?ow of cleaning ?uid to said blower pipes independently of said ?rst men tioned valve. 5. In combination, a plurality of movable blow~ er pipes, a distributing valve for controlling the ?ow of cleaning ?uid to said blower pipes ac tuated valve controlled by said ?rst mentioned < CHARLES E‘. IDEN.