US1903486A - Boiler cleaner - Google Patents

Description

1933. N. L1. SNOW BOILER CLEANER Filed 001:. 50, 1924 3 Sheets-Sheet l IN VEN TOR. Abe/m9 Z 54/0 ATTORNEY.

April 11,

N. 1... SNOW BOiLER CLEANER April 11, 1933.

Filed Oct. 50, 1924 3 Sheets-Sheet 2 IN VEN TOR.

A TTORNEYJ N. L. SNOW BOILER CLEANER April 11, 1933.

Filed Oct. 30. 1924 3 Sheeis-Sheet 3 ATTORNEY.

Patented Apr. 11, 1933 UNITED STATES PAFTE A Non-MAN L. snow, or DETROIT, MICHIGAN, ASSIGNOR 'ro DIAMOND? POWER srnomn'rx I v NIT "OFFICE,

CORPORATION, 015 DETROIT, MICHIGAN, A,CORPOBATION OF MICHIGAN BOILER CLEANER 'Applicationfiled October 30, 1924. Serial No. 746,904.

The invention relates to boiler cleaners and has among its objects to provide an improved drive for soot blower elements or the like.

Referring to the drawings:

"'5 Figure 1 is a sectional view showing one embodiment of my invention;

Figure 2 is a sectional view along the line 2-2 of Figure 1;

Figure 3 is a sectional viewof a modified form of my invention;

Figure 4 is a sectional view along the line 4.4ofFigure3; I

Figure 5is a view showing one application of my drip collector to a boiler cleaner system,

and I p Figure 6 is a detail view of the drip cup.

In the drawings reference character 10 indicates a blower head having goose neck 11 for conveying cleaning fluid such as steam,

air, etc., from a source at 12 to the blower cleaner element 13 which extends through wall box 14 projecting through the boiler setting or wall 15. The element 13.is of lesser diameter than that of wall box 14 thus affording clearance between these parts as shown in Figure 1. The element 13 is adapted to project through wall 15 and is preferably provided with one or more nozzles (not shown) for directing the cleaning fluid to the boiler tubes and other parts of the boiler-to be cleaned in accordance with the usual practice. I I

' The element 13 isconnected to the goose r neck 11 by a ball and socket connection 16, 21. ring 17 secured by screws 18 being adapted to hold the parts in proper relation. Element 13 is also provided with a squared portion 19 adjacent a shoulder 20, the latter laterally 'ositioning a gear'21 mounted by a forwardly ext-ending h'ub' portion 22 within bearing 23 formed by the bracket 24. Gear 21 is also provided with an opening 25 shaped to cor respond with the portion 19 of element 13 but affording a clearance 26 between the gear-21 andelement 13. p j a A shaft 26-is supported at one end by the bracket 24 and at the otherend by a second bracket 27 A chain sheave 28 is rotatably mounted 011 the shaft 26 and keyed to a hub 29 of the sheave is a pinion 30 meshing with the gear 21. j Y a,

In operation the chain sheave 28 is rotated or oscillated to cause pinion 30 to rotate the gear 21. The latter drives the element 13 by 5 reason of the squared portion 19 whereby the element 13 is rotated or oscillated during the cleaning period. The ball and socket joint at 16 constitutes a support permittingffloating of theelement 13, the loose square drive from gear 21, with the clearance 26, permits ting movement of the element 13 without any tendency to displace gear 21 and pinion 30. It is obvious that other forms of loose drives might be readily substituted forthc specific square-shape drive 19 as shown in Figure 1. For example, the surface 19 might assume the .shape of an polygon or other contour which would a orda drive with a clearance, such as at 26, for permitting rela tive movement between the element 13am]. gear21. W j I Referring-to Figures 3 and 4, I have shown a modification of my invention in which the blower element 13 is supported as before bya 75 ball and socket joint 16. However, instead of floating the blower element freely with re spect to the driving gear, as shown in Figure 1, in the constructionshown in Figure 3 the driving worm gear 21 and worm 30 are floated with the blower element 13". :Shaft 26, which may be drivenby achain sheave as before or other suitable means, is mounted in the bearings 33 supported by bracket arms 34 terminating in bearing portions 35 and 36 85 loosely embracing the element 13 and hub '22 respectively. For preventing a downward swinging of the bracket arms 34, pins 34' may be mounted on the bracket 27 thesepins projecting on opposite sides of the said bracket arms 34 as will be readily apparent by reference to Figures 3 and 4. Plate 37, carried by element 13 is mounted for sliding movement relative to .theboiler walland is adapted to seal the opening between the element and the wall box 14. I 1 a In operation the shaft 26 is rotated 01'. oscillatedto act through worm 30 and gear 21 upon-the element 13 for directing the "clean- I ing fluid toward the parts of the boilergto be cleaned, as before. The blower element 13',

by reason of the ball and socket oint 16 and a unitthe. shaft 26, worm 30', gear 21 and 46 will then drain through pipes47, 44, 42 and45. I

bracketarms 34.

A cup 31 (Figures 1 and 3) is preferably located below the joint between element 13 and'its connection with the blower head 10 so as to catch any drip of the'cleaning fluid which would otherwise fall upon the operatorbelow. Where steam is employed as a cleaning fluid medium. a drain of this character is especially desirable. A pipe 32 serves to conduct the drainage or drip to any suitable point. p

Referring'to Figures 5 and 6, I have shown a modified form of a drip collecting means. In these views .38 indicates a boiler having boiler tubes 39 suitably located at various points for cleaning the boiler tubes and other-parts of the boiler are the blower units A, B, C,- D and E preferably of the type employing a valve operated to admit cleaning fluid to the 'blower element simultaneously with the rotation of the blower'element by reason of the chains 40 acting on the sheaves 41, The blower units {A, B, 'etc., are supplied with V cleaning fluid from a main supply pipe 42,.

past the main control valve 43, and thence to the branch pipes 44. A pipe collects and removes the drainage from the system and a manually controlled valve45 is provided for controlling the discharge through this pipe.

Below each unit, as illustrated inconnection with the unit B, is a cup or receptacle 46 suitably positioned to catch the drip from the unit. The cup is connected by a pipe 47 preferably with a branch pipe 44 below the units, the passage between the cup 46 and pipe 47 being controlled by a ball 48 normally resting against the ball rest 49 when valve 43 is shut, allowing any drip collected in the 7 cup 46 to drain off through pipe 47.

In operation when it is desired to cleanthej boiler the valve. 43 is opened to admit cleaning fluid into the branch pipes 44, the cleaning fluid also acting through pipe 47 to force ball 48 upwardly to prevent escape of cleaning fluid by way of the pipe 47.

:' The blower unitsA, B, etc, are then operated to successively rotate their respective blower elements and unseat the valve controllingpassage of steam from the branch pipes 44 to the blower elements. Any drip escapingduring the blowing operation will be caught and collected in the cup 46. When the blowing operation is over, the valve 43 is shut off thus releasing'the pressure in pipe 47 thereby permitting ball 48-to drop to the ball rest 49. The drip accumulated in cup By the term rotate as used in the specification and claims I mean one or more partial or complete rotations of the parts designated or oscillationsof such parts.

The invention has, for the purpose ofcil lustration, been described as a boiler cleaner adapted to clean parts of a boiler. It will be apparent, however, that the invention will find equal utility in cleaning any similar apparatus and it is to be therefore understood that the term boiler wherever used in the driving worm meshing with the'gear, and 7 means for mounting said cleaner element, worm and gear for floating movement with respect to the blower head.

2. In a boiler cleaner, a

blower head, a rotatable cleaner element, a gear mounted on the cleaner element for rotating the same, a driving worm meshing with'the gear, a frame supporting the worm in relation to the gear and cleaner element said cleaner element, frame, gear and worm being floated as a unit with respect to the blower head. 7

3. In a boiler cleaner, a valve controlled supply pipe for cleaning fluid, a blower cleaner unit communicating with said supply pipe, a cup positioned to catch the drip of cleaning fluid from said unit, a drain connection from said cup to said supply pipe, means for drain- 7 ing said supply pipe, and means for auto= matically closing the said'connection when the valve is opened in the supply pipe.

4.-In 'a boiler cleaner,'a'valve controlled supply pipe for cleaning fluid, a blower cleaner unit communicating with said supply pipe, a cup positioned to catch the drip of cleaning fluid from said unit, a .drain connection from said cup to said supply pipe, means for draining saidsupply pipe, and means for automatically closing the said connection when the valve is'opened in the supply pipe,

fluid in the said supboiler'cleaner, a blowerhead, a

said means including a valve operable by the i I said cleaner element, the said cleaner element, a

bracket, and cleaner element rotating means being floated as a unit with respect to'the blower head. V

6. In a boiler cleaner, a blower head, a rotatable cleaner element, a bifurcated bracket 1 loosely mounted on the said'clean'erelement, a Worm carried by the said bracket, and a gear carried by'the said cleaner element and arranged between the furcations of the said bracket for engagement with the said worm, the said bracket, gear, worm and cleaner element all being floated as a unit with respect to the blower head. a v y 7. In a boiler cleaner, the combination with a boiler wall, a blower head, and a rotatable cleaner element journaled in said blower head and projecting through said wall for discharging jets of cleaning fluid adjacent por loosely embracing said blower element, said blower element being movable relative to said driving member in a direction to provide for said universal movement.

9. In a boiler cleaner, a blower head, a cleaner element having one end journaled in said head for substantially universal movement relative thereto, and a driving member carried by said head, said driving member being provided with an opening loosely but non-rotatably receiving said cleaner element whereby rotation of said driving member efl'ects a rotation of said cleaner element and said universal movement is provided for.

10. In a boiler cleaner, a blower head, a cleaner element rotatably journaled in said head for substantially universal movement relative thereto, said cleaner element having a portion of its outer periphery of angular cross sectional shape, and a driving'member carried by said blower head having an opening of angular cross sectional shape for loosely receiving the said portion of the blower element to provide for lateral movement of said cleaner element relative to said driving member while providing for rotation of said cleaner element by said driving member.

11. In a boiler cleaner, a blower head, a cleaner element rotatably journaled in said head for substantially universal movement relative thereto, said cleaner element having a portion of its outer periphery of substantially square cross sectional shape, a bracket carried by said head, and adriving member journaled in said bracket and having a substantially square opening for loosely receiving the square portion of said cleanerelement. I

12. In a boiler cleaner, the combination with a blower head located exteriorly of the boiler setting, a cleaning fluid supply pipe for said blower head, a drain pipe for said supply pipe, and a blower elementprojecting through said boiler setting and journaled in saidhead for receiving cleaning fluid therefrom, of means located 'exteriorly of said head for collecting the'cleaning fluid escaping past themoving parts of said head and for conducting the same to'said drain pipe.

13. In a boiler cleaner, the combination with a blower headlocated exteriorlypof the boiler setting, a cleaning fluid supply pipe for said head, a drain pipe for said supply pipe, Y

and a blower element projecting through said boiler setting and ournaled 1n said head for receiving cleaning fluid therefrom, of areceptacle located exteriorly of said head for collecting the cleaning fluid escaping pastthe moving parts of said head, and means for conducting the escaped cleaning fluid from said receptacle to-the said drain pipe." r l 14. In a boiler cleaner, a blower headga cleaner element having one end connected to. said head for universal movement with respect thereto, a bracket supported by the blower head, a member having a bearing in said bracket for rotating said cleaner ele ment, said member being normally axially aligned with the axis of the cleaner element, and a loose driving connection between said member and said cleaner element providing for relative displacement of the axes of said member and cleaner element.

15. In a boiler cleaner, a blower head, a cleaner element having one end connected to said head for universal movement with respect thereto, a bracket supported by the blower head, a member having a bearing in said bracket for rotating said cleaner element, said member being normally axially aligned with the axis of the cleaner element, a loose driving connectionbetween said member and said cleaner element providing for relative displacement of the axes of said member and saidcleaner element, a shaft carried by the blower head, means for rotating said shaft, and means for transmitting the movement of the shaft to the said member for rotating the latter.

16. In a boiler cleaner system, a pair of blower units, a combined cleaning fluid supply and drain pipe for both of said units, a rotatable cleaner element carried by each unit, a cup positionedto catch the drip of cleaning fluid e'scapingfrom one of said units, a connection between said cup and said cleaning fluid supply and drain pipe, and a valve in said connection operable to prevent the escape of cleaning fluid from said connection when cleaning fluid is flowing.

through said supply and drain pipe and to provide for draining the drip from thecup through the said connection when theflow of cleaning fluid through the supply and drain pipe is cut ofl.

17. In a boiler cleaner system, a combined supply and drain pipe for cleaning fluid, a

valve controlling the admission of cleaning 1 fluid to said pipe a plurality of blower cleaner units communicating with said pipe, a cup positioned to catch the drip of cleaning fluid from one of said units, a drain connection from said cup to's'aid pipe, and means for automatically closing the said connection when the valve, is opened to the pipe.

18. In a boiler cleaner, a comblned clean- 7 ing fluid supply and drain pipe, a blower unit communicating with said pipe, a cup positioned to catch the drip of cleaning fluid from said unit, a connection between said cupand said pipe, and a valve in said connection operating to prevent the escape of cleaning fluid from said connection .when the blower unit is in operation and to permit draining the drip from the cup through-the said connection when the blower unit is inoperative. 1

In testimony whereof I afiix my signature.

' NORMAN L. SNOW.

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