Патент USA US2105801код для вставки
Jan. 18, 1938. A. E. WATTS 2,105,801 BOILER Filed May‘4, 1956 2 Sheets-Sheet 1 Jan. 18, 1938. A, E‘WATTS ‘2,105,801 BOILER _Filed Méy 4, 1956 2 Sheets-Sheet 2 ' 2,105,801 Patented Jan. 18, 1938 UNITED STATES 2,105,801 BOILER Albert Edward Watts, Montreal, Quebec, Canada Application May 4, 1936, Serial No. 77,741 4 Claims. (Cl. 122-149) The invention relates to boilers as described portion l5 through the plate ii to the plate H3. in the present speci?cation and illustrated in the accompanying drawings that form part of the same. > The invention consists essentially in directing the course of the water within the boiler to insure a ?ushing current and ?ash action and to in~ crease the extent of the heating surface as point ed out in the claims for novelty following a de 10 scription in detail of the structural features par ticularly useful in the generation of steam, though with some modi?cation it may be applied to the heating of water for radiation purposes. The objects of the invention are to hasten the 15 generation of steam in comparatively large in stallations, in fact to practically make this in vention a ?ash boiler type; to automatically and continuously flush the boiler and keep it clear of scale and incrustations and maintain its good steaming properties; to improve circulation of the water and so arrange the ?re as to present a heating surface practically everywhere to the water, and generally for heating purposes, ma rine and stationary equipment conserve the fuel and increase efficiency. Referring to the drawings, Figure l is a longi tudinal vertical section of the boiler. ‘ Figure 2 is a vertical cross sectional View on the line 2-2 of Figure 1, showing the preheated water feed to the circulatory inducing passages. Figure 3 is a vertical cross sectional view on the line 3-3 of Figure l and showing the wall of the preheating chamber broken away. Figure 4 is a detail of the domestic hot water connections to the boiler tube. Figure 5 is a perspective View of the boiler showing the rear end partly cut away to expose the combustion passages and preheater. Figure 6 is a prospective view of the boiler from the front end and showing an oil burner mounted at the mouth of the combustion cham ber and partly broken away to show the combus tion passages. Like numerals of references indicate corre 45 sponding parts in the various ?gures. The boiler casing is made up of the main tubu lar portion l5 extending the full length with the intermediate dome section 16. This dome sec tion forms the water and steam chamber and has the end plates I‘! and I8 let into and form ing divisions in the tubular portion l5. A plate l9 forms the top and side walls sealing the water and steam chamber. The main combustion chamber 20 extends from 55 the front plate 2| closing the end of the tubular The lower portion 22 extends beyond the plate it and has its horizontal edges bent outwardly at 23 to form a horizontal division cutting off and diverting the products of combustion as will be described hereinafter. A water preheater in the form of a hollow cast ing 21‘: forms the end wall of the main com bustion chamber 2%}, while the rear end of the tubular portion 55 is closed by the plate 25. Fire tubes 2% are mounted in the walls I’! and i8 and form passages from the rear of the com bustion chamber 20 above the divisions 23 to the front chamber 2? and from this chamber to the rear chamber 28 below the divisions 23, the ou+~ 15 let 2!: leads to the smoke stack. The water and steam chamber it is provided with ba?ies 3E! and 3! spaced between the tubes and, the wall l9 and extend the full length of the chamber. These baffles follow the contour of the wall and converge inwardly to near the bot tom center while at their upper end they sweep inwardly to form open mouthed passages 32 and 33. The water preheater Ed has a water inlet pipe 25 34 connected at its lower end, leading from a connecter 35 which is one of a series connecting the water chamber it with the sludge chamber 36, while the outlet 3? divides into two pipes 31 and 38 leading into the water chamber it at the water lever. The ends of these pipes are directed into the circulatory passages 32 and 33. The combustion chamber 28 has three ex pansions formed of ?ve brick rings 39 and ‘it and has the burner opening ‘it with which the oil burner unit ii?! is connected as illustrated in Figure 6. A sight tube 133 open at both ends is set into the rear end wall 25 and through the preheater casting 24, and is suitably closed at the outer end by a glass lie, or other transparent and heat resistant material. This tube 43 is provided with an opening t5 to provide a. short circuit of the products of combustion direct‘ to the chamber 28 and the smoke stack. 45 Domestic hot water is provided by utilizing two or more of the tubes 26 and for this purpose the back of the plates H and it have the bosses 46 welded thereon about the tubes into which the studs 4? "are screwed, these studs hold the tapered plugs 188 and plates 59. The tapered plugs 48 effectively seal the ends of the tubes, while the glands is seal the ?ttings 50. The ?ttings 55 are connected together at one end to form a return connection and at the other end connect 55 2 2,105,801 with the pipes 51 and 52 forming the feed and return of the domestic hot water system. A ?ller tube 53 having its ends ?attened and. sealed is centrally placed and set in the tubes 26 used for the hot Water system and are held in position by the pins 54. A main steam outlet 55 is provided on the top of the dome together with outlets for various other purposes such as pressure gauges and water 10 gauges. In the operation of this boiler, the products of combustion are continuously in contact and pro viding heating surfaces against the body of water, and it is the ?rst contact of the products of com they again contact the preheater and its inlet and outlet pipes, this instant and constant heat ing of the small body of water in the preheater which is at once delivered to the boiler, gives to the ‘boiler the character of a ?ash type where steam is generated almost instantly and the water is agitated and circulated giving exceed ingly high e?iciency in the generation of steam. The baf?e plates are adaptable to almost any type of boiler and are specially effective in cir 10 culating the’ water in the Scotch type boiler where a relatively large body of water has to be agi tated and circulated. In hot water boilers, the preheater can be used 15 bustion against the face of the preheater casting, for many other purposes, such as delivering hot which contains a comparatively small body of water, that causes rapid heating of this body, causing the hot water to circulate through the pipes 31 and 38, at the same time drawing cold 20 water from the bottom of the boiler through the pipe 343. The discharge pipes 3'1 and 38 discharge the heated water behind the ba?les 38 and 3!, and this water being under circulatory pressure, is forced down in the passages 32 and 33 expel 25 ling the colder water out at the lower end of the ba?ie allowing the heated water to follow into the main body of water, and its natural water or steam‘to humidi?ers or the like. What I claim is ;--~ 1. In a boiler, a ?re chamber terminating in a water wall, a water chamber about said ?re chamber, baffles spaced from the walls of said Water chamber and forming open ended circu latory passages, a water connection from the bot tom of the water chamber to said water wall and. discharge pipes from said water Wall to said water chamber and directing a ?ow of preheated Water into said passages. ' tendency to ascend causes an internal circulation 2. In a boiler, a ?re chamber terminating in a water wall, a water chamber about said ?re in each side of the boiler around the ba?les, which 30 at the same time is constantly forced by the chamber, ba?les spaced from the walls of said water chamber. and forming open ended. circula feeding of freshly heated water from the pre heater. There are therefore three circulations in the boiler, the main circulation from the ‘bot tom of the boiler through the preheater to. the 35 tops of the passages 32 and 33, and the two circu lations around the bail‘les, causing a rapid turbu lence particularly noticeable at the water level breaking up and dispersing oxygen bubbles there by preventing them from adhering to the metal 40 surfaces and thereby preventing the gradual eat ing away of the metal at the water level which in the past has been the cause of serious damage and the reduction of the life of the boiler. ‘ This continual turbulence and positive circulation of 45 the water also carries all vegetable matter in the water down behind the ba?les and e?ectively pre vents it gathering into lumps, it is in fact in time forced down into the sludge chamber through the connectors 35and the same thing happens 50 with any scale formed. The water in the sludge chamber is entirely outside the effect of the circu lations and relatively cool and for this reason the sludge is kept in a soft state and easily removable. All heating surfaces are therefore kept free of 55 deposits with subsequent freedom fromiburned out spots. a The products of combustion after contacting the pre-heater are diverted back through the ?re tubes above the plates 23 to the front chamber 60 2? and thence through the lower tubes to the chamber 28 and thence through the outlet 29 to the smoke stack. During all this travel the prod, tory passages, a sludge chamber below said water chamber and directly connected therewith, a water connection from the bottom of the water chamber to said wall and discharge pipes from said water wall to said water chamber and di recting a ?ow of preheated water into said pas sages. 3. In a boiler, a ?re chamber having a burner opening and stepped ?re brick linings leading to a main tubular section terminating in a water 40 wall preheater, a water chamber about said ?re chamber, ba?les spaced from the walls of said water chamber and forming open ended circula tory passages, a water connection from the bot tom of the water chamber to said water wall, and discharge pipes from said water wall to said water chamber and directing a flow of preheated water into said passages ' 4. In a boiler, a ?re chamber terminating in a water wall ba?le forming a preheater, an upper > chamber, a front compartment at the end of the fire chamber and a rear compartment, passages connecting the upper chamber with the front chamber and the front chamber with the rear chamber, a Water chamber having end. walls forming the divisions of said front and rear and upper chambers and side walls terminating in a steam dome, bail‘les spaced from side walls and forming open ended passages, discharge pipes connecting said preheater with the tops of said 60 passages and return connections from the boiler to- the preheater adapted to start a circulation ucts of combustion are giving up heat to water ' from the preheater through the boiler. covered surfaces and at the end of their travel, ALBERT EDWARD WATTS.