Document VvDaYmoOz4R4EKQXy3RM2b3Z

PRACTICAL IDEAS. ..here's the trading post for y mfijg and maintenance short cuts -- STEV1 KLONKA, AwtxJata editor easier. Then pull leading rod |l,V IJrrtff niOChioe leoOt wiih hose and electrode. Cut move electrode out 1^4 jn< ** * plate and trim hose to % ]n jj trodes are long, file down. Alter ing terminals, cell is ready fo, You place a rubber stopper wipj holes. Make holes larger thin Vn' hose over electrodes in cell's top t, electrodes in place. r\ Another way to seol cell's boueifjjjj coat 'inside of plate with GE C|yu If this is used, cell must be lelt to*d at least-24 hr before using. '< C J 1 noSKR Heater for Turbine Flange Bolts s )^r i Electric dolt heaters ror our turbine Range bolts were not available when we began to dismantle one of our units for inspection. We don't heal high-tensilestrength bolts with an open flame torch. We heated bolts with a coll of Vfc-in. iron pipe os an electric heating ele ment. Low-pressure compressed air passes through hot coil and down into boh, sketch. is left straight, and long enough to resell bottom of 14-in.-deep hole in bolt. To lugs welded to both ends of coil are leads from a dc electric welding machine. About 250 amp heals coil to a dull red, with air si 5 psi passing through coil and into bolt. Superheated air heats bolt as It es capes from bottom of heater pipe and passes back up through boh. It took Galesburg, A/fgj 1^'. ****wwM tV Ij&ftbw'PdB gi&lyfTroubies IfetoPlarge Induced-draft nnd fgafliijffalr fans are usually waterKffi<*wlfoligpln bearings to cut a sleeves. In smaller fans fl^BtSoifiobtput boiler plants, bearI^P-^rlag-oiled and watereooled, M^bsll'bearingi. Even then, bearj^'uy^ver&at. pfaMM^lint we had trouble from fan HW&$<$verbeating. This was over- 'Kvtfiting B disk, with a number Bjfbiida'aitaclisd, to fan shaft between fgtai&lNaitog and fan sketch. Fan dis- Lighten Up Dark Engine Rooms Havinc operated or managod 100 ice plants. In my time, I have learned that painting engine rooms white la a good investment. It not only lightens up everything, but also cuta down acci dents. Photo shows overhead, walla, some machinery and alto the floor pointed white. At one time thii was a dark en gine room. Now only the path along floor la dark. Employes stay longer In a dean, light plant. Then again they naturally take better care of IL That cuta down main tenance bffla and outage. There Ja no reason why a plant cannot be kept aa clean as your own home or office. HC Welch Baldwin. N.Y. Keating coil it 10 luma of Vg-\n. standard black-iron pipe with inside coil diameter of 3 in. Coil, wound in /athe over a 2V&-ln. pipe, hos spacing of about Vfc in. between turns. One end of coil 20 minutes of heating to elongate bolts enough to permit nuts to be easily re moved. Bolts were heated in same way when reassembling machine. C Trbtinvak Austin, Minn. sfd Tail-Pipe Clean-Up Syittr We needed a vacuum clean-up syrtefi before entering the bear- iji^Thit wlved our problem, rf n CAitR VvWPi- Shinier, England 1 I'-SfMfu. HV ' ftvihinf, Iff. head Weld lof light joint Condenser tail pipe on our ID,Own inoebino had a 15-fl drop, so wa.aff a 2-inch pipe connection to upper/d ITiqhl'-tiiting 'utbtr tube "'"`"`J ' /. rubber goUet \ A<rco No. 20 bronte sketch. This gave an excellent vseni at expense of sn extra pou'uTwtfi pressure on our circulating purapf&s to a partial loss of siphoning `Ctfos-1 As turbine operation is eontinji^ we extended piping to various throughout plant. One length of fla^aj iJ^Mable Clamps Clean-Outs pgr-. Gfiitattw SNeti-end-ii/be intercooler H-p Cytirttr 4 -p cjrUndof Oil Trap Stops Metallic Noise hose is enough for all plant ele*"* main or Iron sewer Uno Onb or oun 2-stege, direct-acting, hori- Compressor end Intercooler maker's System has been operating kf,'j2jn i, * fluteh way to clean xontal, high-speed ammonia compressors field engineers could offer no economi Making a Conductivity Cell and is highly tolisfactory. DititeM;j*8| s- wTMPlio* PciaUy If there ere Is rated at ISO tons at 0-psi suction, cal solution. We installed on oil trap, collected is automation")' diwlwf ^ere line Is hard to snd 0 F superheat at 175-psi condensing sketch, to protect Intercooler surface Our conductivity cells gave irouble, so 1 made a cell from welding rod and half-inch pipe, sketch. This works bet ter and needs little maintenance. Only upkeep-is cleaning electrode tips in weak acid solution. Also reselling the 0.100-in. clearance, which may vary with application. Cell is eosy to make. First make obeli. Lightly screw in plate with rubher gasket. Slip rubber hose over weld ing rod, leaving sn inch hanging over end. .Place another rod with hole in end, run wire through hole, slip assem bly into overhanging hose. Secure rod to hoso with wire. Push leading rod through holes in plate nnd gasket. First soap rubber hose so it slips through with circulating water. ' C-ta J A Swanson Princeton. Timer for Chemical r**|j 5iiiVx>W*`^ 8 In pipe's top see- 'n` long, sketch. We then acadi^r' c]In?p ^ either sawing or ygfg^,"gthwis a pipe of same di- Installation of 15-minute ^ inches longer than cut lWrte'pipe. chemical feed pump results fl^niin^Ve',We^c^ 0r braxed at each Itti'isSw*"mp*' Bro mB(^esavings for power and mointenanetr*S| sides, It does not slier concentNlluH ^oti* up curvature of pipe, gasket L FmPATRiCK Jefferson pulled up and bolted. pressure. Machine needed an inter cooler to reduce valve maintenance, oil consumption and power coat. Intercooler was installed a greet dis tance from machine because of watersupply system. After installation there woa a severe metallic hammer at fre quency corresponding to compressor valve opening. Noise caused complaints from operators, we all worried about from oil, which would cause poor host transfer. We oversized trap and Insu lated it with hair felt In hope that shock waves causing hammer would quiet down. Hammeriog decreased snd pipe line vibration stopped. Also, a much steadier pressure was noted back in auo* lion to high-pressure cylinder. This helped increase h-p cylinder efficiency. M Evans Chicago, III. piping. We first contacted makers. (Continued on page 128) PLANT OPERATION AND MAINTENANCE SECTION Skni' PUNT OPERATION AND MAINTENANCE SECTION HxiL