SCHNEIDER-KESSEL BERLIN

Transcription

1 SCHNEIDER-KESSEL BERLIN STEAM BOILER and HOT WATER BOILER WASTE HEAT RECOVERY BOILER - Series AHK

2 GENERAL Waste Heat Recovery boilers of Series AHK are steam generators in special smoke tube design to utilize hot waste gas from industrial processes generating high or low pressure saturated steam or hot water They are principally of customized design to meet the requirements of every application in order to achieve the utmost possible result of heat recovery Most of the time boilers of series AHK are installed down stream of diesel or gas engines as well as gas turbines to utilize the hot waste gases Even in combination with cogeneration units valuable resources can be saved The AHK is connected to the waste gas sources by flue gas ducts In order to achieve a comprehensive controllability a bypass system is installed to bypass the AHK directly into the chimney Economiser can be installed to maximize the heat recovery B E N E F I T S reducing fuel consumption and decreasing operation costs by substituting conventional boiler systems raising the plant efficiency cost-efficient design, hence fast return of investment (ROI) customized design for each application easy integration in each existing boiler system safe and space-saving installation 72 hrs operation without supervision by most advanced safety and control equipment

3 DESIGN Waste Heat Recovery boilers of Series AHK are shell boilers in one pass smoke tube design Flue gas boxes at boiler inlet are channelling the hot flue gases into the smoke tubes At the boiler outlet one common flue gas box collects the flue gas and leads it via a flue gas duct to the chimney In the one pass smoke tube design the smoke tubes of the AHK are welded into both boiler end plates hence avoiding cost intensive internal flue gas reversing installations The AHK can be designed for horizontal or vertical flue gas inlet and outlet depending on the local situation In case of expecting interacting impact of the different flue gas sections in the AHK - ie different flue gas pressure levels the flue gas sections can be totally separated from each other This goes with the entire AHK including the economiser The generous water and steam space of the AHK guarantees a perfect dry steam with no carry over and a short reaction time during load fluctuation

4 M A N U F A C T U R I N G A N D E Q U I P M E N T Boilers of series AHK are designed in accordance with the applicable design standards and rules, TRD or EN12953, in combination with Pressure Vessel Directive DGRL97/23/EG Manufacturing is carried out under supervision of TÜV BASES FOR DESIGN AND EQUIPMENT OF AHK BOILERS ARE flue gas mass flow of each connected waste gas source allowable pressure loss of each connected waste gas source flue gas composition of each waste gas source required safety standard required control standard BASIC DESIGN AND EQUIPMENT pressure part including insulation flue gas boxes in accordance with the local situation and/or upon clients request control box pressure control bypass control system boiler safety chain including emergency push button main power connection 1 safety valve 1 min water level limiter switch 1 water level control switch for continuous water level control 1 pressure transmitter for pressure control 1 max pressure switch 1 water level gauge 1 intermittent blow down valve manually activated 1 surface blow down valve manually activated 1 main steam valve 1 feed water valve 1 feed water check valve 1 vent valve 2 feed water pump sets - 1 in operation - 1 as stand-by unit OPTIONAL EQUIPMENT 1 additional water level limiter switch in case of 72 hrs operation 1 TDS control in case of 72 hrs operation without supervision 1 control device for automatic intermittent blow down valve in case of 72 hrs operation without su-pervision 3-way bypass damper for each flue gas flow economiser 1 temperature gauge for visual temperature monitoring

5 TECHNICAL DATA We deliver waste heat recovery boilers of series AHK for capacities up to 10 MW Higher capacities upon request ➊ ➋ ➌ ➍ ➎ sources of energy engines turbines kilns steam boilers bypass system SCHNEIDER-KESSEL AHK heat exchanger economiser preheater for water treatment plants preheater for utility water chimney ➊ ➋ ➌ ➍ ➎

6 SCHNEIDER Engineering GmbH Berlin, Germany Tel: +49 (0) Fax: +49 (0) SCHNEIDER-KESSEL (Asia) Ltd Bangkok, Thailand Tel: +66 (0) Fax: +66 (0) We deliver worldwide Range of Deliveries and Services Steam and Hot Waters Generators water tube boilers three pass boilers waste heat recovery boilers electrically heated steam and hot water generators Engineering Installation and Commissioning After Sales Service Repair Spare Parts wwwschneider-kesselcom 04/2013