Патент USA US2412856код для вставки
De¢- 17, 1946. v.1. P. BADENHAUSEN ; I 2,412,856 STEAM GENERATOR " Filed March 50, 1945 2 Sheets-Sheet 1 E ,1. 1 INVENTOR ~ Jar/iv PH/u/Ps B?oewunuszlv ayérwm? ?rm/2M7 Dec.‘ 17, 1946. > ' J. P. BADENHAU‘SEN 2,412,856 STEAM GENERATOR Filed March 30, 1945, s4 4/ 2_ Sheets-Sheet 2 34 Ila/229mm“ . 35 40 59 55 3/ 4a , \ // 36 39135365!‘ _ _ \ ’5935 INVENTOR' Jo HN PHILLIPS BAPENHA U'S-EN I BY v 67mm’; , ATTORNEY Patented Dec. 17, 1946 2,412,856 UNITED STATES PATENT OFFICE 2,412,856 STEAM GENERATOR John Phillips Badenhausen, Philadelphia, Pa., as signor of one-half to Bayard Badenhausen, Philadelphia, Pa. Application March 30, 1945, Serial No. 585,619 5 Claims. (01. 122-255) This invention relates to steam generators and more particularly to steam generators adapted for burning pulverized anthracite coal, anthracite culm and other fuels. It is the principal object of the present invention to provide a steam gen erator having improved means for introducing air for supporting combustion. ' and I3. At the lower part of the side wall I2 and I3, lower water headers I5 and I6 are pro vided extending from front to rear with their longitudinal axes parallel to the axis of the steam and water drum l4. Between the front wall I0 and the rear wall II an upwardly extending ver tical wall or baffle I1 is provided preferably ex tending from the side wall I2 to the side wall to provide improved apparatus for introducing air for the combustion of fuel for steam gener 10 I3. The upper ends of the side walls I2 and ation.‘ ‘ I3 are preferably connected to top wall sections I8 and I9 and a central top wall section 20, cov It is a further object' of the present invention ering the drum I4, extends between the top wall to provide an improved arch construction with It is a further object of the ‘present invention provisions for introducing air therethrough for sections I8 and I9. ‘ supporting combustion. The front wall I0 is preferably provided with 15 a fuel‘inlet opening 2|v for the introduction of It is a further object of the present invention fuel in any desired manner. The space to the to provide apparatus for burning fuel for steam rear of the front wall I 0 in front of the wall generation which will be adequately protected or ba?‘le l1 and between the side walls I2 and I3 from the high temperature of the combustion of the fuel. . ‘ preferably constitutes a combustion chamber. A 20 Other objects of the invention will be apparent - grate 22, extending rearwardly from the front from the speci?cation and claims. wall ID to the wall or ba?le I7, may be provided for retaining a bed of burning fuel at the lower The nature and characteristic features of the part of the combustion chamber. The grate 22 invention will be more readily understood from preferably serves as a closed hearth and the space the following description, taken in connection with the accompanying drawings forming part 25 below the grate 22 is preferably closed and not hereof, in which: provided with any air supply. . Figure 1 is a vertical transverse sectional View of a steam generator embodying the present in vention taken approximately 011 the line I—-I of Fig. 2; ‘ The side walls I2 and I3 of the combustion chamber are preferably lined with banks of steam generating riser tubes‘ 23 which extend upwardly ‘along the interior of the side walls I2 and I3 from the lower water headers I5 and I6 to the steam and water drum I 4. A bank of spaced steam generating riser tubes Fig. 2 is a vertical central sectional view taken approximately on the line 2--2 of Fig. 1; Fig. 3 is an enlarged fragmentary view partly in plan and partly in horizontal section illus 35 24 is provided, the tubes 24 extending upwardly from the headers I5 along the interior of the trating a preferred arch construction in accord side wall I2 and then substantially horizontally ance with the present invention; and and transversely across to the other side wall Fig. 4 is an enlarged fragmentary sectional I3 then upwardly along the interior of the wall view taken approximately on the line 4-4 of Fig. 3. l3 and beneath the top wall section I9 to the 40 steam and water drum I 4. It should of course be understood that the A bank of spaced steam generating riser tubes description and drawings herein are illustrative 25 is provided, the tubes 25 extending upwardly merely, and that various modi?cations and from the header I6 along the interior of the side changes may be made in the structure. disclosed without departing from the spirit of the‘ in 45 wall I3 and then substantially horizontally and transversely across to the other side wall I2 then upwardly along the interior of the wall I2‘ and Referring more particularly to the drawings, a beneath a top wall section I8 to the steam and steam generator of a particular type is illustrated water drum I4. ‘ for purposes of explanation of the invention. vention. i The steam generator as ’ shown includes a ver tical front wall Ill, a vertical rear wall I I, and vertical side walls I2 and I3. An upper hori zontal steam and water drum I 4 is provided ex ‘ 50 The substantially horizontal portions of the tubes 24 and 25 serve as supports for an arch 30 illustrated in more detail in Figs. 3 and 4. The arch 30 preferably consists of a plurality of I tending rearwardly from the front wall I0 with “ shaped block elements 3| of refractory material. its longitudinal axis parallel to the side walls I2 65- The elements 3| preferably each have a horizon tal top ?ange or section 32, with an upper exposed 2,412,856 ward said hearth for the combustion of fuel face 33, a central downwardly extending web 34, thereon. and a horizontal lower wall or ?ange portion 35, with a lower exposed face 36. The top sections ._ 2. In a steam generator, a steam and water compartment, a combustion chamber below said _ 32 are preferably shaped at their transverse edges 5 compartment having side walls and a closed bot 31 to conform to the shape of the tubes and to tom wall providing a hearth, steam generating rest thereon as illustrated in Fig. 4. _ tubes connectedv to said steam and water COIIl-f The block eleme ts. 3| each have edge portions partment and.’ having substantiallyv horizontal 38 for engagement with c-orrespondingedge por portions and arch blocks carried on said por tions 38 of adjoining block elements 3! and the 10.. tions of said tubes, said arch block being I lower wall portions also have transverse edge pore" shaped- and having upper portions in engage tions 39 for engagement with corresponding edge, ~merit with said portions of said tubes and lower portions 39 of adjoining block elements 3!. ‘portions, the: spaces between ‘said upper and The block elements 3| are-provided'with open, loweri'portionsot said blocks comprising air de ings 40 for the downward delivery of- air-from» 15 livery~compartments, and said lower portions of interior air compartments 4:. The number and I ‘said, blocks-being provided with openings in com sizes of the openings 40 maybevaried- in accord munication with said air compartments for the ance With the air requirements for the burning discharge‘ of air towardsaid hearth for the com of the particular fuel employed, the openings/'48 - " bustion of fuel thereon. . being provided in su?icient number and of suf 20 $3‘. In a steam'generator, a.v ‘steam andwater ?'cient.‘ size toprovide all theair required .for the compartment, a combustion chamber. having: side combustion of the fuel’. on the grate 22. Air is walls anda bottom'wall providing", a hearth, supplied. to the compartmentstl by aid. ducts 52. steam generating tubes connected to said steam It. will. be noted that the block elements M, and: water compartment and having substan by reason or‘ their. shape, may readily be posi 25 tially horizontal portions, and arch blocks car tioned: on the horizontal tube portions of the banksrof: tubes 241 and 25. with the edge portions 31-. resting‘on the horizontal portions of the tubes ried on the horizontal? portions of’ said tubes; said arch blocks. being I-shaped andhaving up perv portions; lower portions and Webs extending “(and 25, and with ‘the edge portions 3% and 39 respectively in engagement, to provide the arch construction. in accordance with, the present. in vention; between‘ said portions of said blocks, the spaces 30 between said upper and lower portions of said blocks. and. said webs comprising air delivery compartments, ,and said' lower portions‘ of said blockslbeing provided with openings for the dis charge of air toward said hearth‘. for the combus ~ The mode of operation will, it is thought,. be clear from the foregoing but it may benoted that fuel. is supplied through the fuel opening ' .21. and: delivered to, and distributed on the grate Z’Zsin any desired manner. Air is supplied for combustionthrough the ducts 42 to the compart .ments; M and from the compartments 4i down iii); The air for ,Wa-rdly through the openings tion of fuel thereon. ' 4;.In a steam‘ generator, a steam and water compartment, a combustion chamber below said ' compartment having side walls and a closed bot tom wall providing a hearth, steam generating 4-0 tubes connected to said steam' and water com combustion is thus directed onto the fuel on the partment and having substantially horizontal grate-22. The fuel-burns on the grate 22v and the portions, and, arch blocks carried onv the. hori burning continues asfthe hot gases of- combus zontal portions,» of said tubes, said arch blocks tion pass around the front of the arch'?ii- and being I-shaped and having upper portions in across the top faces 33‘ thereof. The heat re- : "engagement with said portions of said tubes, leased by the combustion is effective for gener lower portions, and webs extending between said atingsteam in the banks of wall tubes 23 and in ' portions of saidblocks, the spaces between said the tubes of the banks‘ of tubes 24: and’ 2.5‘. The upper and lower portions of said blocks and said steam rises-in the tubes 23, Eli and 25' and is de ‘?anges comprising air delivery compartments, livered by these tubes to the steam and water ' 50 and said lower portions of said blocks being pro. drum M. The airmoving in the compartments videdwi'th openings: for the discharge. of air vto 4| prevents the overheating of thearchB?-at the ward said hearth for the. combustion of fuel _lower wall portions 35- thereof and prevents the overheating'of the top sections 32"thereof' as the 5.. In a: steam generator, a steam and water Y hot gaseso-f combustion pass thereover. 55 compartment, a combustion chamber having side The» horizontal sections of the tubes‘ 24 and 7 walls and a clo'sed'botto-m wall providing a hearth, 2'5, in- addition to their function of generating steam generating-‘tubesv connected to said. steam steam, also. support thearch 3!! and aid in cool jand water‘ compartment and having substan ing- the top sections 32 of the arch 36, thereby tially horizontal portions, and arch blocks car preventing the same from becoming overheated. vmyried‘ on the, horizontal portions of said tubes in I- claim: vedgew-ise engagement, said arch blocks being I 1'. In a steam generator,‘ a steam and water ‘shaped and‘ having upper portions in engage compartment, a combustion chamber below-said mentwimthsaid portions of said tubes, lower por compartment having side walls and a bottom ~tions andv Webs. extending between said portions, wallproviding a hearth, steam, generating-tubes: 65 the spaces between said upper and lower por connected to said steam and water compartment tions of, said blocks and said webs comprising air and’ having substantially horizontal portions, and delivery‘ compartments, the lower portions of said ~ arch blocks carried on said portions of saidtubes, arch’ blocks» beingv in edgewise engagement and thereon. . said arch blocks being I.-shaped and having up ‘ ' ' provided with openings at the edges for the dis per- portions and lower portions, the spacesbe~ 70 charge of air toward‘ said hearthfor the combus l tween said upper and lower portions; of said tion of fuel thereon. \ blockscomprising air delivery compartments; and said lower portions of said‘ blocks being pro vided with‘ openings for the discharge of air to V JOHNiPHILLIPS BADENHAUSEN.:,.