MODELS D5E & D5M ROTARY SOOTBLOWERS

1 General DescriptionThe Clyde Bergemann Model D5E(Electric) and D5M (Manual) RotarySootblowers offer dependability in boilercleaning and ease in operation. The D5 ROTARY has been part of the CopesVulcan (Sootblower Division purchasedBy Clyde Bergemann in 1997) productline for many years with thousands ofunits providing excellent serviceworldwide. The D5 ROTARY features asimple design concept, which equates tominimal maintenance cost and troublefree Clyde Bergemann Model D5 rotarysootblower is designed to cleanconvection surfaces of packaged or fielderected industrial boilers. The blowingelement of this type sootblower remainsin the boiler at all times, supported byelement bearings usually attached to theboiler tubes. Specially designednozzles are located on the element (asrequired) for each specific or superheated steam, as wellas compressed air, may be used as theblowing medium.

2 The D5 can operate intemperatures up to 1800o F with theproper choice of element prevent infiltration of corrosivefurnace gases through the element tothe valve assembly, a scavenging aircheck valve is furnished as standardequipment on the D5 ROTARY pressurized furnaces a purgingairline from a source of higher pressurethan the furnace is connected to thescavenging air D5E & D5 MROTARY SOOTBLOWERSO perationOn the D5E the drive motor rotates theelement, through the bull and piniongearing, in a full 360-degree arc aboutits axial centerline. Rotation is normallyclockwise at 2 rpm. Blowing mediumadmission is controlled through amechanically cam operated valve in thevalve head. Blowing medium is turnedoff when the blowing sweep iscompleted and the cam followerdisengages from the cam. The blowersare designed for either individualoperation or for use in a blowing sweeps are regulated bypreselected cams mounted on the bullgear.

3 The poppet valve ismechanically held open during theblowing cycle. The valve automaticallycloses after completion of the blowingsweep. After initiation from the startsignal the model D5E RotarySootblower is automatically self-controlled. The proper stop point isdetermined by a limit switch positivelydriven by the bull gear to eliminate thepossibility of phase shifting between theblowing arc and ROTARY blower cleaning sweep can be adjusted bysimply removing sections of the openercam. The arc can be adjusted from360o through 90o in 30o , the travel direction can becounterclockwise if desired. Addition ofsuffix S to the D5E (D5ES) meanssequencing is provided. The blowerscut in, blow, cut out and bring in the nextblower in series. Only the first blowerneed be RemovalThe connection between element andhead is a flange not a pipe flange is outside the boiler, awayfrom the dirt and corrosive fluids.

4 Thisalso helps to prevent element warpageand binding. The head is quickly andeasily removed from its mounts. First,bolts are removed from two flange , the head is lifted away, leavingthe element in its normal position in thefurnace. With the head removed, it is asimple matter to slide the element out,should it need replacing. Theconnecting flange, under normalconditions can be Sootblower InstalledThe line drawing below demonstrates arotary sootblower installed in a boiler witheither staggered or in-line tubes. Notearrangement of the nozzles to properly cleanall tube banks. Support bearings suppliedas required. Pressurized wallbox Sootblower Poppet ValveThe DVT-FS Sootblower poppet valve isa valve designed to regulate the flowand pressure of cleaning medium beingfed to a sootblower. The unit featuresenhanced sealing ability and service lifeby the use of a flat seat with a seatprotection device.

5 Seat damage isminimized by controlling the majority ofthe pressure drop across a downstreamadjustable throttling ring, andadditionally by means of a specialcontour immediately adjacent to the flatseat, which bears the pressure dropduring the initial opening of the Pressure Easily Adjusted Drive screw (1) adjusts the stroke of thecam while the hex valve stem cap (2)can be rotated for either a reduction orincrease in blowing pressure. Exactpressure can be determined with use ofoptional gauge permanently mounted onpoppet Construction Standard headsand flanges are fully rated for ANSIC lass 600 WCB. Other materials andclasses are also Arc Readily Changed - Addor remove cam segments (3) on maingear. No need to remove head or cutnew Easily Removed Element isattached by means of a flange. (5)Head is attached to wall sleeve adapterby three jack-studs.

6 (4) Remove thenuts from the jack-studs and lift headout, slide element out for inspectionand/or replacement. No special & Power Gears Covered Finaldrive pinion is heat treated for maximumservice. Pre-lubricated gear train istotally enclosed impervious to D5M ROTARY SootblowerFor those applications where anelectrical drive is not feasible, the D5 Mmanual ROTARY sootblower is units utilize a hand operatedchain wheel drive for rotation. Thefunction of the sootblower is the samewith the exception of the drive of the 15:1 two step gear trainration, the effort required to operate thisD5M is surprisingly Sootblower SpecificationSampleRotary Sootblower Structure - The rotarysootblower structure shall be designed in such afashion as to allow ease of maintenance,durability in operation and effective boiler tubecleaning.

7 It is preferred that the structure be amodular design using a cast frame to attachsubassemblies to. As a minimum the structureshall be coated using an organic primer basecoat and an epoxy top Sootblower Gearbox Assembly andMotor - The sealed & lubricated gearboxassembly shall be mounted to the main frameand shall have a standard frame flange. Thedrive shall be through a bull and pinion geararrangement. The drive motor shall be at leasta 1/8 HP electric motor with a service factorand class B Poppet Valve & Related Parts -The poppet valve shall be the seat and plugstyle with a cast body using at least a WCBmaterial. The valve housing shall be made toANSI standards and shall include the companionflange. The valve pressure adjustment shall beaccomplished externally without affecting seatopening. The valve actuator shall be a cam andfollower arrangement.

8 The cam shall beadjustable to vary blower Sootblower Control System - Therotary sootblower shall be electrically operatedusing plant voltage available. There shall be aterminal box available for field wiring. The startand stop function shall be prewired and readyfor field wiring. All wiring and terminals shall Sootblower Element - The elementshall be designed to meet the specifictemperature and furnace gas conditions. Theelement shall be flanged to the head sootblower drive and electrical system shallbe designed to allow the element venturies to beadjusted and preset to a permanent rest positionwithout SpecificationsDrive/Electrical (D5E Only):Motor1/8 HP, 230/460 volt, 3 phase, 60 Hz, 1800 RPMTENVL imit SwitchesHeavy Duty MechanicalSwitch BoxCast Aluminum, NEMA 4 Drive40:1 Bull and Pinion Gear SetGear BoxFully Enclosed Reduction Type GearboxElement Rotation2 RPMHead:RatingCarbon Steel, ANSI Class 600, ASTM A216,Grade WC-B (Optional WC6 Available)Poppet ValveType 410 Stainless Steel (prehardened)SeatSolid Stellite InsertCompanion FlangeANSI Class 600 Pressure ControlExternal Adjust, Internal ControlDimensions:OAL30 Inches, Inches with Pressurized WallboxHeight14 InchesElement / Support Material:2 Sch.

9 80 Steel Pipe0 900o F2 Sch. 80 304 SS 900o F - 1600o F2 Sch. 80 446 SS1600o F - 1800o FClyde Bergemann, Inc., Box 941519: Atlanta, GA 30341-01519, USAT elephone: (770) 557-3600, Toll Free USA/Canada: (800) 241-5996, Fax (770) 557-3641 Form: D5 ERev; 5/99