US1675726A - Soot blower - Google Patents

Description

July 3, 1928. v I 1,675 726 J. PETTY SOOT BLOWER Filed Au 1925 2 St xeets-Sheet 1 July 3, 1928. 1,675,726

, J. PETTY I SCOT BLOWER,

] Filed Aug. 192s ZSheets-Sheet Patented July 3, 1928.

UNITED STATES 1,675,726 PATENT IHOFFICE.

JOHN PETTY, or LEBANON, PENNSYLVANIA, ASSIGNOR r'o J0 Pair, INC.,. or LE ANo'N, PENNSYLVANIA, A CORPORATION or PENNSYLVANIA.

soor Browns.

My invention relates to sootblowers especially adapted and intended for use with fire tube boilers. In another application filed by me May 19, 1923, Serial Number 640,189, I have described and shown a soot blower construction especially adapted for use in fire tube boilers in which the tubes are separated by vertical spaces into tube banks. My present invention is especially intended for use with fire tube boilers in which no such separation of the tubes into banks is provided for, although it will be understood that it is also capable of use with such divided banks of tubes. I, Theobject of my invention is to provide a soot blower con struction comprisinga series of soot blower frames each adapted to operate in connection with a separate group of tubes and each being made capable, by means of my novel construction, of being swung away from its operative position in front of the tubes to a position in which it no longer faces the tubes but leaves them free for cleaning, replacement, etc.

The nature of my improvements will be best understood as described in connection with the drawings in which:

Figure 1 is a front view of a boiler provided with my'improved soot blowing con-. struction.

Figure 2 is a side view of the head of the boiler and the soot blower construction.

Figure 3, a plan view taken as on the section line 3-3 of Fig. 1, and

Figure 4 a sectional view on the line H of Fig. 3.

Figure 5 is a front view of a fire tube boiler rovided with a modified form of my soot b owing construction.

Figure 6 a side View) of the end of the boiler and of the soot blowing construct-ion on Fig. 5.

Figure 7, a plan view on the section line 7-7 of Fig. 5.

Figure 8 a cross section on the line 8-8 of Fig. 5, and

Figure 9 a section on therline 9-9 of Fig. 5.

Referring first to the construction of Figs. 1 and 4, A indicates the head of the boiler. B, B, etc. the fire tubes extending. through the boiler and opening through the heads thereof. C, C, are steam pipes connected with the valve casings indicated at D, D. These valve casings, as shown in Fig. 4, are

each provided with a cylindrical seat D for the plug cock D with a port D to which thepipe C is connectedand with distributing ports D and D, the ends of which are threaded, as indicated at d and cl so as to provide a rotatable connection with the steam pipes to be described. D indicates the rotatable plug valve having a port, as shown,

by means of which the port D can be conetc, to which inturn are connected the soot blowing nozzles, indicated at g. F is a rotatable steam conduit screwing into the socket d and connected by an angularly extending arm F with the adjacent tubular soot blower frame made up of the main conduit F and the transversely extending pipes Gr to which the soot blower nozzles are in turn connected. By my construction the angular extensions E and F, by which adjacent soot blower frames are connected to the steam supply, overlap each other and each one of the laterally extending pipes F, as shown, is curved, as indicated at F so as to clear the rotatable steam pipe E, as shown, feeding the other tubular soot blowing frame of the pair with steam.

As shown, each frame is provided with a book like socket, indicated at M, in which, when the frames are in proper operative position, the locking bar M is engaged so as to prevent the frames from being swung out of position.

hen itis desired to have access to any group of tubes the locking device is removed and the soot blower frame covering the group of tubes swung to one side, leaving the tube group entirely exposed.

Referring next to the modified device, as shown in Figs. 5 to 9, the steam supply pipe, here indicated at CC, is connected to a valve head DD, having four outlet ports, indicated at d, 0Z d and d, with which are connected steam conduits indicated .at H, H, H and H the upper pair of pipes, H, H, connecting, through angular extensions I, I, with sockets J, J, with which, as by a screw connection, the pipes K and L are rotatabl connected. The sockets J and J are eacli located to one side of the group of tubes with which the connected soot blower frame is to operate and the soot blower frames, which are similar in construction to those already described, are connected with the rotatable pipes K and L by. the angular extensions k and L which overlap each other and one of which is so formed as to clear the rotatable connection of the other portion of the pair, as, for instance. by being curved, as shown at L Fig. 7, K and L bein the central pipes. The pipes H and 3 connect with the sockets J 2 and J 8 to which in turn are rotatably connected pipes 17 and l which have angular lapping extensions in and 1 connecting with the central pipes k and l of soot blower frames similar to those already described. It will, of course, be

' obvious that in this modified construction,

the angular extensions ofsthe rotatablesteam supply pipes overlap each other has clear advantage it will be obvious that some meritorious features of my invention can'be availed of without-necessarily involving this feature.

' Having now described my invention, what I claim as new and desire to secure by Letlcrs Patent, is:

In combination with a, fire tube boiler, a soot blower construction comprising in combination a pair of tubular soot blower frames adapted when in operative position to extend over and lie close to separate groups of tubes, steam pipes rotatably supported at one side of the tubular frames to which they are connected, said rotatable steam pipes having angular extensions respectively. conmeeting with said frame, each of said steam pipes being rotatably supported at one side of the respective frame, said angular extensions overlapping each, and one being so formed as to clear the rotatable pipe having the other extension so as to. permit either member of the pair of frames to be swung away from in front of the group of tubes it normally faces.

JOHN PETTY.

Mutual

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