Document jNN49D3YVQDM7bZ4yraQGwp95

'enovation Roundup CONTINUED Steam Generation Fust, lobor and melntananco Are (he "fire brigade" repair gang. And pro three big elements of iteem cost. These vide the tools and other facilities lor ere the key to sound steam-plant nod' rapid overhaul. emlxalien. Fig. I (a typical plant) Fable I shows the results of a profes reminds us that fuel end wages have sional steam modernisation survey In a climbed to diuy heights since 1930. papermlU power plant. The results ore Fig. 2 euma up Federal Power Cora* specific lor only this plant, but the tab mission statistics for U Class A and B ulating form-used is a good guide for private utilities. Note that .maintenance others. Many plants could mako as costs, mills per hwhr, have almost good a showing with new steam units doubled since 1941. Fuel costs, mills and better hookups. per kwhr. arc up about S0%. Fig. 3 A consulting engineer mode this sur plots fixed charges for coal handling vey. It took a lot of time and cost real (as determined by Fairmont Cos) Bu money. For example, all lines whose reau) for plants o! various sixes. steam consumption aflected the ap These curves show why automatic . praisal were (tiled wilh orifices to meas controls,'iueb and ash-handling equip* ure flow. Here, as usual, cost of digging meat; and .ether labor-aaving devices out the facta paid off In sound conclu arc auch attractive investments today sions and genuine savings. Knowing end suggest that they will be even more totals is not enough; to moke maximum Indispensable in years to come. Cer steam savings you have lo find out just tainly fuel prices will keep on climbing where your operating dollars are wasted. --probably wages too'. . In this case the survey showed that Any comparison of the new and old lB% of the Btui in all tho cool fired must consider not only fuel, and other was running down the sewer iu the tur operating coats, but also maintenance. bine condenser cooling water. Eliminat Usually the renovated steam plant will ing condensing turbines, end switching cost much lets to maintain. Try to esti from steam to motor drive throughout mate how much less. plant permitted jacking the electrical Co all out to deflate future'mainte load and cutting heat losses. nance costa. Pick equipment of proved Every plant is a special case, but most reliability and accessibility and units have a "steam tapeworm" somewhere that can be served mainly by scheduled in their systems. Study Table 1 to get periodic overhauls rather than by the [Continued on page 67) I: Steam Survey for a Paper Mill Steal Peer Spying Meeting preeen voter HeeHag Seller teedvore* flte pat poona erf paper mode bid Kew DeereaM fc,' Operal/ea eperoife* Afv needed TO I20 0 21,100 iiso rise a 22,200 SIS 421 111 22S0 Meet endivetent tr m<4 a elee sever Mlu and eihOBiHd ltrow ceetire SelMteg beatleg ead otfioMmeoei Setter ree* leoee Tetal It. applied le I teen per beer Eeebelest peemdi pf 12.400 Ste ceof per peered ! paper HtO 222 221 <02 2210 u.sia - eOmtseted 2440 10J 0 Ms 221 lt.lM y> *22 221 ten 4110 402 .1202 0 24S) 1419 _ HIS -- 4493 -- _ 142.220 1.022 .1*1 .422 -- II: Points to Consider Eelore Construction Stomp* arses Temporary buildings Parking space Temporary services Commissary Construction labor < "? Construction equipment Construction staff M Personnel monoper ) laws and rogutatlens manual .: Ill: How a Schedule Speeds Construction Malarial ordered In sequent* for doltvory whan neodad Contractor knows whon ordarod mat*rial will arrive Ma|or equipment sot an parvnanant foun dation os delivered* This reduces storage end extra handling Provision can be made for early or let* unit d*D**rlet 9 Time clearly defined to templet* each phot* of lob 6 Testing, (hacking, ed}utt)ng time eftot tho Installation ! Included In schedule 7 Contractor can *1* mate the matt efff* dent labor fore* needed for ead phase of fob IT PATS TO MODIINI2E POWgg v Mftf-9pfam6er. f.MJ- here's why they selected Q different types of steam traps for O different applications " II m Conditions under which steam traps muse operate vary widely, but there is for every service one type that gives maximum efficiency. Sarco makes the 4 distinctly different TYPES of steam traps shown below. Therefore, Sarco can give you impartial advice on the beat choice for your particular installation. For each of the 4.jobs listed below, the users selected four different TYPES of Sarco traps/ Draining outride Iratcr f/nct In an oil rchnciy in New Jctiey braining platen* of romprettion plastic presses ffaftrapt btitelladi Sarco No. 9 thermostatic trap*, fflwlwtadi Being thermostatic, (hey are (team misers. Can't Efreeke, being wido open when cold. Easy (O'maincam since ' jRnly th* bellows moves. Small, light and easy to Install. ffStjl-adlmtlng for different pressures. Type of traps Installed: 100 Sarco Inverted Bucket traps in serv ice for 17 years. Why selected: Press platens have small borisonral steam spaced, the Intermittent blast discharge of these Sarco traps scours the heating surface. Built-in strainer cuts maintenance costs. Draining heating tolls of o milk evaporator Draining heating toils on an oil lenVer Hljfcoi trap Instiled: Sarco Float-Thermostatic Trap. ; Kw'stlattttl: HBatidg surfaces of the coUs mart be kept full of nSfibye steam -- this Sarco trap discharges- condensate as It SKjTttllecti. Can't Airblnd because the integral thermostatic m&vtot gets rid of air, regardless of operating steam pressure HSfctfW temperature. As shown In sketch } above, this vent WHf'dpe* eel depend upon the discharge of condensate. HER'' Type of fropi tailoiled: Sasco LIQUID EXPANSION traps No.87;t. ' Why selected! Traps oa tankers are exposed to fretting weather end vibration. Sarto's No. B71 traps can't frecie; resist vibration, water-hsmmer, pressure pulsations and superbeat. These traps discharge condensate at adjustable tem peratures below J(2*F, permitting use of some of (be con densate's sensible beat. ^rtte.todny for Bulletin No. 145-A: ^electing the Right TYPE Steam Trap. re|^;; Sarco Company, Inc, Empire State Bldg., HgL. New York 1, N. Y. Represented In principal Ifwy1 ' cities. Sarco Canada Lid..Toronto 8, Ontario. SUCH saves steam improves product quality ond output Haa*f,U MlU-Septtfnbor. IflJ