Steam Generator Installation Manual - Clayton Industries

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Steam Generator & Fluid Heater Installation Manual NOTE It is imperative that proper feedwater treatment chemicals and equipment are in place and operational prior to filling the heating coil. The Clayton Feedwater Treatment Manual, furnished with each new unit, provides detailed information regarding Clayton feedwater treatment requirements, products, and equipment. In general, the feedwater supplied to your Clayton steam generator must: • Hardness: 0 ppm (4 ppm maximum) • pH 10.5–11.5 (normal range), maximum of 12.5 • Oxygen free with an excess sulfite residual of 50–100 ppm during operation (>100 ppm during wet lay-up) • Maximum TDS of 8,550 ppm (normal range 3,000–6,000 ppm) • Maximum dissolved iron of 5 ppm • Free of suspended solids • Maximum silica of 120 ppm with the proper OH alkalinity NOTE Review the Clayton Industries Feedwater Treatment Reference Manual (P/N: R15216) for additional feedwater quality requirements, or contact your local Clayton Chemical Sales Representative. 2.7.1 Water Softeners Refer to the Clayton Water Softener Instruction Manual for detailed information regarding the installation, dimensions, and operation of Clayton water softening equipment. Some general guidelines are provided below. Cold water piping to the water softener(s), and from the water softeners to the makeup water control valve should be Schedule 40 galvanized steel or Schedule 80 PVC. Install anti-siphon device (if required by local health regulations) in the raw water supply line. 2.7.2 Make-up Water Line Sizing Table 2-3 shows the pipe sizes required from the water softener to hot-well. The supply pressure must be at least 65 psi (450 kPa). Sect02_Genrl-xx4_s.fm 2-16 04/21/2015
Section II - General Information BHP Make-up Valve Minimum Line Size Table 2-3: Makeup water valve and pipe sizes BHP Make-up Valve Minimum Line Size BHP Make-up Valve Minimum Line Size (in.) (in.) (in.) (in.) (in.) (in.) 25 3/4 3/4 150 3/4 1 500 1 1 1/2 35 3/4 3/4 200 3/4 1 1/4 600 1 1 1/2 50 3/4 3/4 250 1 1 1/4 700 2 2 75 3/4 3/4 300 1 1 1/4 1000 2 2 1/2 100 3/4 1 350 1 1 1/4 1500 2 1/2 3 125 3/4 1 400 1 1 1/4 2000 3 4 Note 1: All models use a makeup water solenoid valve. Note 2: Water flow is based on 44 lb. per hour per bhp (boiler horsepower). 2.8 Feedwater Supply Requirements The feedwater supply line sizing will be a minimum of one line size larger than the inlet connection size of the Clayton reciprocating, positive displacement (PD), feedwater pump. Fractional dimensions will be rounded up to the larger whole-sized dimension. NOTE Clayton, like all OEMs, takes advantage of the limited length and lower losses to minimize its internal line sizes. Like most manufacturers, this works well on Clayton’s internal piping and pump head designs because of the very short equivalent pipe lengths and quickly dividing flows (lower velocities) within our pump designs, which yield lower velocities and acceleration head. Unfortunately, the customer and installing contractor experience the reverse when designing their feedwater piping system as they are usually faced with much longer equivalent length pipe runs and/or have to deal with a pipe required to carry more than one generator’s flow. Therefore, it is critical for the installation designer to increase supply line sizes to meet Clayton’s requirements for velocity and acceleration head. See paragraph 2.8.2 and 2.8.3. 2.8.1 Multi-unit Systems A common design mistake is the installing of a single feedwater supply line to a common suction header for multiple reciprocating PD pumps. The preferred feedwater line design is providing each reciprocating PD pump with its own supply line and suction header. 04/21/2015 2-17 Sect02_Genrl-xx4_s.fm
Page 1 and 2: Cover E-Series Steam Generator & Fl
Page 3 and 4: Title Page Steam Generator and Flui
Page 5 and 6: Table of Contents Section 1 Introdu
Page 7 and 8: 6.5 Safety Controls ...............
Page 9 and 10: SECTION I - INTRODUCTION The CLAYTO
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Page 41 and 42: SECTION III - CLAYTON FEEDWATER PUM
Page 43 and 44: Section III Water supply piping to
Page 45 and 46: Section III Drain Condensate Return
Page 47 and 48: Section III Gravity Fill Vent Chemi
Page 49 and 50: SECTION IV - FUEL SYSTEM 4.1 GENERA
Page 51 and 52: Section IV The Clayton light oil bu
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Section VI - Technical Specificatio
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Section VI - Technical Specificatio
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SECTION VII - OPTIONAL EQUIPMENT 7.
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Section VII 7.5.2 Pressure Regulati
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SUPPLEMENT I - SCR 1.1 SEMI-CLOSED
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Supplement I 1.1.11 Make-up Tank A
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SUPPLEMENT II - HEAVY OIL 2.1 HEAVY
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Supplement II NOTE All heavy oil fi
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2.2 FUELS The conversion chart belo
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ASTM Distillation Range Initial Boi
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SUPPLEMENT III - FLUID HEATER 3.1 F
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Appendix A - Steam Generator Liftin
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Appendix A *Safety cable must be us
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Appendix B - Saturated Steam P-T Ta
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Appendix C - Piping and Instrumenta
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Appendix D - Installing SE Option A
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Appendix D INTRODUCTION A Clayton S
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Appendix D d. Secure the top coil a
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Appendix D FEEDWATER DISCHARGE-SE C
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Back Cover 17477 Hurley Street, Cit
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Steam Generator Installation Manual - Clayton Industries

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