Metropolitan Steam Boiler Suitable for Pressure Jet or Rotary Cup burners Oil, gas or dual fuel firing Outputs 1845-21 700 kg/h 1
Metropolitan - Steam Boiler The Metropolitan is a range of high pressure conventional three pass wet back steel horizontal shell and tube steam boilers, utilising a combustion chamber and two passes of tubes. The boiler is available in sizes ranging from 1845-21 700 kg/h (from and at 100ºC feed water temperature) and is suitable for firing on natural gas, LPG and oil with a choice of burner manufacturers. The boilers are supplied fully packaged for ease of installation and only require connection to electricity, water, steam and blow down lines. General Description The Metropolitan range of steam boilers is available in outputs up to 21 700 kg/h. The boiler has a high water volume and large steam space, which allows it to satisfy high steam demands for short periods and minimizes the formation of water droplets. The boiler has a low heat release rate, due to the large heating surface, which helps to reduce emissions and improve the efficiency. have a standard working pressure of up to 10 bar, but higher pressures are available on request. The boilers have a typical efficiency of up to 90% across the range, based on a net calorific value of the fuel. Performance Features Outputs up to 21 700 kg/h Large steam space High water volume Metropolitan steam boiler High quality saturated steam Up to 10 bar working pressure (higher pressures available on request) up to 90% net efficiency Composite waste heat design option The boilers are fully packaged and are supplied with burner, control panel, twin feed water pumps and ancillary mountings, which are pre-wired and fitted to the boiler. In some cases these items are supplied loose for site installation. The internal parts of the boiler are easily accessible for cleaning and inspection, by opening the two front hinged access doors. This gives good access to the front tube plate and the second and third pass boiler tubes. The boiler is supplied with a set of cleaning tools. Metropolitan boilers should be installed in accordance with relevant standards, codes of practice and current building regulations. Water treatment is recommended for all steel shell and tube boilers and a water treatment specialist should be consulted for advice on this matter. 2
Design & Construction The Metropolitan is a range of three pass wet back horizontal shell and tube steam boilers. The boiler design incorporates a corrugated combustion chamber, which helps to reduce thermal stresses during expansion and improve overall efficiency. The boilers are manufactured using flanged tube plates, which also reduces thermal stresses during the combustion process, The boilers have a large surface of evaporation and a large steam space which provides high quality steam. They also have a generous shell and furnace size, to ensure boiler outputs are easily achieved. The boilers are insulated with a high density mineral wool blanket, enclosed in a sheet steel casing. All Metropolitan steam boilers are designed and manufactured, inspected and tested as required by the relevant provisions of the Pressure Equipment Directive 97/23/ EC and also in accordance with the EC type - examination certificate (module B). The boilers are CE certified. Boilers manufactured and constructed to EN 12953 are available on request. are subject to X-ray and ultrasonic testing and they are hydraulically pressure tested in the factory. Design Features Corrugated Combustion Chamber Flanged tube plates Generously sized shell and furnace Insulated steel casing Manufacture to EN12953 on request Hydraulic factory pressure test Metropolitan steam boiler showing internal arrangement 3
Combustion & Controls are suitable for firing on either gas, oil or dual fuel. A burner is normally supplied and matched to the boiler to give either high/low or fully modulating operation, which ensures optimum operating efficiency to suit specific requirements. The burner is bolted to the boiler front plate and pre-wired to the control panel. The boiler control panel supplied satisfies all mandatory requirements and is generally located on the side of the boiler, but in some cases depending upon the burner specification and size, it may be floor mounted adjacent to the boiler. Boiler control panels can be supplied to meet customer requirements and generally include, alarms, relays, switches and feed pump motor starters. The panel is pre-wired and connected to level controls, pressure switches, feed water pumps and other ancillary items located on the boiler. Volt free kits can also be supplied, details available on request. The control panel requires a 400v 3 phase electricity supply and is supplied with a suitable fused isolator. Ancillary Mountings The Metropolitan steam boiler comes fully packaged and is supplied with the following standard fittings: Cast Steel Crown valve Blow down valve with key two high lift safety valves two reflex type water level gauges, complete with blow down cocks Pressure switches for control of high/low and modulating burners Safety pressure switch Two low level safety probes Twin feed water pumps (on /off control), strainer, feed check and non return valve Pressure gauge Probe type on/off water level controls Boiler control panel Top inspection opening & hand hole inspection covers Ladder and Gantry The fittings are all mounted on the boiler and are pre-wired and piped accordingly in the factory. The water feed pumps are fitted to the boiler support brackets and can be located on either the left or right side of the boiler. However this needs to be specified at the time of order. An additional range of boiler mounted accessories are available, including: Timed bottom blow down valve Self monitoring water level controls Auto TDS system Sample cooler Modulating feed water control Invertor driven pumps and/or burners Flue gas economiser Burner acoustic shrouds PM5 panels (Supplied loose for remote mounting) Composite Waste Heat Boilers can also be manufactured to a composite design, utilising waste heat from another heat source such as a Combined Heating and Power plant or an industrial process. This type of steam boiler is normally fired on gas or oil using a burner as the primary heat source, but it has an additional pass through which waste heat gases flow. The waste gas gives up its useful heat to the boiler when available and it is then discharged into the flue. In some cases the waste heat gas may be the primary heat source, with oil or gas burners used to top the system up when required. Boilers of this type are designed specifically to suit site and system requirements and are available on request. 4
Technical Data & Dimensions Metropolitan steam boiler Metropolitan Model 1000 1200 1500 1750 2000 2500 3000 3500 4000 5000 6000 7000 8000 9000 10000 12000 Boiler Output (kg/h) * 1845 2225 2780 3255 3690 4620 5535 6510 7380 9225 11110 13020 14755 16600 18445 21700 Boiler Output ( kw) 1163 1395 1744 2035 2326 2907 3488 4070 4651 5814 6977 8140 9302 10465 11628 13953 Dimensions, weight & capacity A 2400 2400 2500 2500 3000 3200 3200 3500 3500 3500 4000 4500 5000 5100 5500 6000 B 1200 1200 1400 1400 1400 1500 1500 1500 1600 1600 1700 1800 1800 2000 1900 2300 C 2280 2280 2460 2460 2460 2620 2760 2720 2920 3000 3200 3350 3500 3600 3685 3950 D 4100 4100 4100 4100 4600 4900 5100 5600 5700 5700 6300 6750 7250 7650 8050 8600 E (straight valve) 2560 2560 2765 2765 2765 2980 3120 3130 3330 3410 3660 3810 3960 4135 4220 4300 E (angle valve) 2700 2700 2900 2900 2900 3135 3275 3345 3545 3625 3925 4075 4225 4500 4585 4650 F 2450 2450 2550 2650 2650 2760 2900 2900 3000 3200 3300 3460 3620 3750 3750 4000 G 1500 1500 1620 1620 1620 1745 1750 1750 1950 2000 2000 2070 2150 2200 2350 2240 H 865 865 915 915 915 990 1020 1020 1115 1150 1250 1300 1310 1320 1400 1470 J 750 750 750 750 750 800 880 1000 1070 1070 1100 1100 1100 1200 1200 1150 K 2000 2000 2180 2180 2180 2300 2340 2400 2500 2640 2740 2880 3040 3200 3280 3500 Approx. dry weight (kg) 6500 7100 8550 9620 10550 11550 13100 14050 15080 17500 21100 23050 26550 31100 33150 38000 Flooded water capacity (l) 5940 5805 6960 6890 8435 9610 9865 11940 12630 14120 16530 20030 25700 28140 31120 37500 Efficiency based on net CV Efficiency (%) @100% load 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 Connections Steam outlet (mm) 65 65 80 80 80 100 100 125 125 125 150 150 150 200 200 200 Blow down (mm) 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 Feed water inlet (mm) 32 32 32 32 32 32 32 32 40 40 50 50 50 50 50 65 Safety Valve (mm) 25 25 32 32 32 32 32 32 40 40 50 50 65 65 65 65 Safety Valve outlet (mm) 40 40 50 50 50 50 50 50 65 65 80 80 100 100 100 100 Combustion & Flue Data Flue diameter flanged (mm) 400 400 450 450 500 550 600 600 650 650 700 700 800 900 900 1100 Gas flow rate G20 (m³/h) 132 158 198 232 265 331 397 463 529 661 794 926 1058 1191 1323 1587 Oil flow rate (35 secs) (l/h) 109 131 163 191 218 272 327 381 436 545 654 763 872 980 1089 1307 Oil flow rate (Heavy) (l/h) 115 137 172 201 229 286 344 401 458 573 687 802 916 1031 1146 1374 Flue gas volume (m³/min) 50 60 76 89 101 127 152 178 203 253 298 357 405 456 506 607 Comb. chamber resistance (mbar) 5.5 7.0 7.0 7.0 8.5 8.0 9.0 10.5 10.0 10.5 12.0 12.0 14.0 14.0 15.0 19.0 * Duty in kg/h f & a 100ºC at atmospheric pressure. All dimensions in (mm) unless stated otherwise 5
Installation Clearances All Metropolitan boilers should be installed and positioned so that there is adequate access to the flue and pipework connections by the installer. The boiler should also be installed so that there is at least the length of the boiler in front of the door for cleaning purposes. Boiler base smooth, level and constructed from a non flammable material. Delivery Delivery to site can be arranged. Commissioning Applications The Metropolitan steam boiler range is suitable for a wide variety of applications including: Hospital and Healthcare projects Consideration should also be given to the position and projection of the burner at the front of the boiler for cleaning and maintenance purposes. Metropolitan boilers should be located on a surface capable of supporting the fully flooded weight of the boiler and burner and it should be Commissioning of the boiler/ burner can be arranged. Laundry and industrial cleaning Food Manufacture/Processing Pharmaceutical Manufacture/ Processing Other Specialist Processing applications Horticulture Ormandy Group Associated Steam Products The Ormandy group has an extensive range of steam boilerhouse products, which compliment the Ormandy Hartley & Sugden Steam boiler range. All Ormandy products can be skid mounted to specific requirements. Detailed information on all Ormandy products is available on request. Additional steam products include: Stainless steel Hotwell Tanks up to 30 000 litres Blowdown Vessels designed and manufactured in accordance with PD5500 Steam to Water Non Storage Calorifiers Steam pressure reducing stations Flash vessels designed and manufactured in accordance with PD5500 Steam Accumulators Plate heat exchangers Condensate pumps (powered by electricity or steam/air) Steam to water Packaged Condensate heat recovery units Clean steam generators to produce steam that meets the criteria of HTM 2031 Package plant rooms which can be designed to incorporate any of the above equipment Please visit www.ormandyltd.com to access comprehensive information on Ormandy Hartley & Sugden products and services. Issue 1 April 2011 The Ormandy Group: Ormandy Offsite / Ormandy Rycroft / Ormandy Electric Ormandy Hartley & Sugden / Ormandy Newade / Ormandy Dreh / Ormandy Aquatherm For full information on the Ormandy Group and all its products and services, please visit www.ormandyltd.com Tel +44 (0)1422 350111 Ormandy Hartley & Sugden, Atlas Works, Gibbet Street, Halifax, HX1 4DB England Tel +44 (0)1422 355651 Email sales@hartleyandsugden.co.uk Ormandy Group follows a policy of continuous improvement in the design and performance of its products. Therefore we reserve the right to make changes and improvements to our products without notice which may affect the accuracy of the descriptions and illustrations contained in this brochure. 6