*Contedo Programtico

1 Grupo Howden - Apresentao2 Produtos e Servios / Mercados3 Definio e Tipos de Ventiladores4 Componentes de um Ventilador Centrfugo / Tipos de roda5 Referncia bibliogrfica (manual )6 Os tipos de ventiladores fornecidos7 Os tipos de Rotores fornecidos8 Fases da Montagem do ventilador na UFN III9 Instrues Bsicas de manutenoHowden South Amrica

Founded in 1854 by James Howden (1832 1913) in Glasgow as a marine engineering firm, designing and building steam boilers and engines.

Moved into the power and other heavy process industries supplying fans and heat exchangers.Increased international presence in the decade 1988 to 1997 through acquisitions.Became part of Colfax in January 2012.Now a leading global player for industrial air and gas handling equipment.HistoryCompany origins and development

The commercialisation of screw compressors in the 1940s and development of oil injected screw compressors.Development of the forced draught system for boilers (1882), dramatically reducing fuel consumption.Development of the rotary regenerative air preheater in conjunction with Frederik Ljungstrm of Sweden in the 1920s.Invention of the Sirocco fan with forward curved blades.Invention of the diaphragm compressor by H Corblin.The development of the aerofoil bladed centrifugal fan.

Other technical firstsHistoryTechnical pedigree

HistoryAcquisition timeline The growth of the Howden organisation

AirscrewTurbowerke Meissen (TMH) (1898)KWCA / Howden VentiladoresBurton Corblin (1884) Aeolus (Brazil)Thomassen Compression SystemsTLT-BabcockAlphairKD KompresoryFlkt Woods GII Division JAMES HOWDEN

CarterStorkCanadian BlowerVentilateurs NeuAmerican BlowerBerryWestinghouseDavidson Sirocco (1898)Sturtevant (1860)Buffalo Forge (1878)Voith NovencoAerexEngartSheldonNordisk Ventilator Variax (1947)Joy Green (New Philadephia) (1904)Bryan Donkin (1803)AustCold Covent Fans

1854197119741988199119931995199720082010201120122013

*Grupo Howden - ApresentaoHowden South AmricaEMPRESAS DO GRUPO COLFAX

*Localidades NstvedSydneyLilleChesterfieldNew PhiladelphiaMexico CityShanghaiGuangzhouHong KongGlasgowHowden South AmricaBelfastKingswinfordNstvedHengeloHeidenheimWeihaiBeijingSydneyParis/Nogent & MassyCoswigChesterfieldBuffaloNew PhiladelphiaColumbiaSao PaoloJohannesburgPort ElizabethTaipeiWarsawCartagenaShanghaiWuhanXianGuangzhouHong KongGlasgow/RenfrewMoscowNew DelhiChengduBangkokMelbourneLilleDubaiRhedenSasolburgRio de JaneiroPlymouth MeetingSingaporePuneTokyoMontrealSantiagoBangaloreMedina, Fairlawn Akron & LeitnerWinnipegPragueKolkataChennaiMumbaiEspooVaxjoMadridChalon &MeyzieuFairfield BudapestNancy & BrusselsNantes & VitrolesNilesKoreaSales officeSite with no manufacturingSite with manufacturingMap key

*Produtos e ServiosHeaterThe rotary regenerative heat exchanger extracts heat from a hot gas stream and transfers it to a cooler one. It contains up to 500T of thin steel sheets contained in baskets Used, for example, as a boiler air preheater it increases electrical output of a power station by 10%.Cooling fanThe cooling fan is constructed from glass reinforced plastic and moves large volumes of air at very low pressure in air cooled heat exchangers and condensers. One Howden design, the ultra low noise SX fan, is 15dB quieter that the competitions equivalents.Axial fanAerodynamically, the axial fan is more suited to a combination of higher flow and lower pressure. On large machines the blades pitch is altered whilst the fan is running. Large fans can absorb in excess of 10MW, enough energy to supply a small town.

The range also includes axial impulse fans, also called mixed flow fans. Centrifugal fanAerodynamically, the centrifugal fan is more suited to a combination of higher pressure and lower flow. It can be designed to tolerate high temperatures and erosive dust in the gas stream. The kinetic energy stored in a large fan rotor can equal that of a goods train travelling at 70mph.Howden South Amrica

*Produtos e Servios CompressorsHowden supplies three ranges of compressors; the screw compressor (above), the diaphragm and reciprocating compressors, each satisfying an individual market need.Turbo-blowerTurbo-blowers (turbo compressors) are high speed, high pressure fans satisfying duties between those of fans and compressors. The tip speed of the machined rotor can exceed the speed of sound.Pre-engineered fansCentrifugal, axial and mixed flow fans are supplied as pre-engineered units. In many cases these are a cost effective solution, compared to fully customised machines where the need to tailor the fan precisely to a specific duty is not paramount.Howden South Amrica

*Produtos e Servios ServiceHowden has the capability to service its own equipment, that of competitors and of other rotating machines and associated plant. The installation shown above is a set of four ventilation fans for a road tunnel in Belgium. EnhancementHowden can upgrade equipment either to cope with changed performance requirements or to retrofit more modern technology. Examples are fitting higher pressure blades on an axial fan or, illustrated above enhancing the sealing systems on an air preheater.PackagesCompressors and blowers are packaged as a unit with ancillary equipment such as driver, lubrication system, storage vessels and piping, and skid mounted for ease of installation.Howden South Amrica

*MercadoPower GenerationBoiler draught FGDDeNOx plantDry cooling systems

PetrochemicalOil platformsRefineriesPetrochemical plants

Iron and SteelSinter plantPelletising plantBOS steelmakingElectric arc furnaces

Cement Kiln ID FanClinker Cooler Exhaust FanClinker Cooler Supply FansRaw Mill FanMain Dust CollectorCement Mill Fan

Howden South Amrica

*MercadoMiningMain ventilationAux ventilationDust collectionRefrigeration systems

TunnelsMetro ventilationVehicle and rail tunnels

TransportRail locomotivesVehicle air bags

IndustrialPulp and paperCementSmelting - Aluminium Smelting Other metalsSulphuric acidBrewing and distillingGlass manufacture

Howden South Amrica

*MercadoOthersBuilding servicesWaste waterEnvironmentalNuclearNavyRefrigerationWind tunnelsHowden South Amrica

Howden South Amrica

Fbrica da Howden em Itatiba-SP *Howden South Amrica

*Modelo do ventilador.Howden South AmricaNA PLANTA UFN 3 EXISTEM PELO MENOS 03 VENTILADORES FABRICADOS PELA HSA :

01 NO FORNO CONVERTEDOR 02 NA CALDEIRA CBC OS MODELOS SO:

01 L5N 2788 . 00 . 00 DBL6F ( FORNO CONVERTEDOR )

01 Z9B 1497 . 10 . 00 SBL6F (VENTILADOR AUX. CALDEIRA)

01 Z9B 980 . 02 . 00 SBL6F ( VENT. COMPLEMENTAR )

*Informaes sobre as caractersticas do ventilador.Howden South AmricaVENTILADOR DO FORNO CONVERTEDOR

*Howden South AmricaDescrioUma famlia de rotores robustos, de alta eficincia, otimizado para mxima resistncia mecnica.Pequena curvatura nas psAplicaes tpicasMovimentao de ar e gs com mdia e alta presso, por exemplo: Sinter, Pelotizao, Cimento, tiragem induzida de caldeiras, e ar primrio de caldeiras. Tipos de Ventilador L1 L2 L3N L4 L4N L5N CARACTERSTICAS DO ROTOR L5N

*Howden South AmricaCARACTERISTICAS DE EFICINCIA

Ps curvadas para frentePs radiaisPs radial tipPs planas inclinadas para trsPs curvadas para trsPs Airfoil

Eficincia mx aprox. 70%

Usados (cada vez menos) em Ar CondicionadoEficincia mx aprox. 70%

Para aplicaes industriais.Eficincia mx aprox. 75%

Para aplicaes industriais.Eficincia mx aprox. 80%

Para servios leves e aplicaes industriais.Eficincia mx aprox. 85%

Para servios leves e aplicaes industriais.Eficincia mx pode chegar a 90%

Para servios leves e aplicaes industriais.

*Howden South AmricaCARACTERISTICAS TCNICAS

*Preparao para Montagem do Ventilador e Mancais de Casquilhos

Howden South AmricaFASES DA MONTAGM

*PREPARAO DA REAAntes de iniciar a montagem do ventilador, familiarize-se com os componentes a serem instalados usando o desenho de conjunto do manual.

Marque as partes com a numerao indicada no desenho de conjunto.Checagem da Fundao.

Verifique se a fundao est de acordo com o indicado no desenho de referncia. A rigidez mnima necessria para a fundao de 8,76x108 N/m na direo horizontal e 2.5x109 N/m na direovertical.Howden South Amrica

*PREPARAO PARA MONTAGEMHowden South Amrica

*Montagem da Carcaa e MancaisHowden South Amrica

*Montagem da Carcaa Howden South Amrica

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*Montagem da Carcaa e complementosHowden South Amrica

*Montagem da Carcaa e MancaisHowden South Amrica

*Montagem da Carcaa e MancaisHowden South Amrica

*Montagem da Carcaa e MancaisHowden South Amrica

*VENTILADORES DA CALDEIRAHowden South AmricaOS OUTROS VENTILADORES SO DA CALDEIRA CBC

ESTES UTILIZAM OUTRA CONCEPO DE DESIGN DE ROTOR, AS PALHETAS SO FEITAS COM FORMATO DE ASA DE AVIO E, SEU DESEMPENHO MELHOR DO QUE OS DE PALHETAS SIMPLES

*Montagem da Carcaa e MancaisHowden South Amrica

Ps curvadas para frentePs radiaisPs radial tipPs planas inclinadas para trsPs curvadas para trsPs Airfoil

Eficincia mx aprox. 70%

Usados (cada vez menos) em Ar CondicionadoEficincia mx aprox. 70%

Para aplicaes industriais.Eficincia mx aprox. 75%

Para aplicaes industriais.Eficincia mx aprox. 80%

Para servios leves e aplicaes industriais.Eficincia mx aprox. 85%

Para servios leves e aplicaes industriais.Eficincia mx pode chegar a 90%

Para servios leves e aplicaes industriais.

* ARRANJO GERAL DO VENTILADORCOMPLEMENTAR

*ARANJO GERAL DO VENTILADOR AUXILIARHowden South Amrica

*ORIENTAES TCNICAS MONTAGEM E MANUTENOHowden South Amrica

*Howden South AmricaORIENTAES TCNICAS MONTAGEM E MANUTENO

*ADVERTENCIAS Howden South Amrica

*Howden South AmricaTESTE EM VAZIO PAGINA 29 DO MANUAL IF 0073 02

DESTACANDO QUE SO MUITOS PONTOS DE OBSERVAO

*Howden South AmricaREGULAGEM PONTO OPERAOPGINA 31 E 32 DO MANUAL IF 0073 02

*Howden South AmricaEFEITO DO SISTEMA PGINA 33 DO MANUAL IF 0073 02

*Howden South AmricaEFEITO DO SISTEMA PGINA 33 DO MANUAL IF 0073 02

*Manuteno de Rotina.Howden South AmricaO manual contempla as sugestes bsicas de manuteno de rotina, a princpio temos os alarmes que devem ser definidos durante o monitoramento dos ventiladores.

Na pgina 34 do manual do ventilador IF 0032 02 temos:

*Howden South AmricaManuteno de Rotina.

*Howden South AmricaManuteno de Rotina.

*Howden South Amrica

*Manuteno de Rotina.Howden South Amrica

*Manuteno de Rotina.Problemas mais comuns: Vibrao!

O ventilador no deve trabalhar desbalanceado, caso contrrio o conjunto eixo/rotor e mancais podem ser danificados seriamente. O rotor normalmente balanceado esttica e dinamicamente conforme ISO 1940-1 antes de ser despachado.O presente ventilador considerado uma mquina de eixo rgido, ou seja, uma mquina que opera abaixo da rotao crtica do eixo. Para mquinas com tal classificao, os limites de vibrao dos mancais em todas as trs direes devem ser definidos de acordo com a norma ISO 14694:2003.Howden South Amrica

*Manuteno de Rotina.

*Manuteno de Rotina.

*Manuteno de Rotina.

*Manuteno de Rotina.

*Manuteno de Rotina.

*Normalmente os limites de vibrao so especificados em RMS (Root Mean Square). Entretanto quando for requerida a amplitude de pico a pico, os valores podem ser obtidos do seguinte modo:Manuteno de Rotina.Amplitude (pico a pico) = 27000 * V(RMS) [um]NOnde:

N = Rotao de operao [rpm]

V = Velocidade em RMS da tabela acima [mm/s]Howden South Amrica

*Manuteno de Rotina.Abaixo, seguem as causas mais comuns de desbalanceamento e suas correes correspondentes:Se necessrio o balanceamento do rotor pode ser executado no prprio local por pessoasespecializadas.

A Howden pode tambm fornecer esse tipo de servio.Howden South Amrica

*Manuteno de Rotina.Abaixo, seguem as causas mais comuns de elevao de temperatura nos mancais e suas correes correspondentes:Observao :

Somente podemos afirmar que a temperatura do mancal est elevada, quando fazemos medies com aparelhos apropriados e aferidos, e no quando tocamos no mancal para sentir o seu calor.Howden South Amrica

Howden Group 2014

PERGUNTAS

Howden Group 2014

OBRIGADO PELA ATENO

More detail in the Howden Academy History module part of the Howden overview.Scotland Street in Glasgow was the site of the first factory and was in use until around 1990.*Forced draught system - Trials with the prototype boiler on a ship in 1883/4 fitted with the forced draught system increased output by 3% whilst reducing fuel consumption by 35%.

Howden worked to develop the screw compressor with the inventor, Professor Lysholm of Svenska Rotor Maskiner (SRM), and took the first licence in 1938.

Frederic Ljungstrom approached Howden in 1923 with a proposal to develop his design of rotary heat exchanger. Howden Ljungstrom preheateaters (Land) ltd. was set up 50% owned by Howden and 50% by AB Ljungstrom Angturbine. It had factories in Glasgow and USA.

Samuel Davidson devised the Sirocco fan in 1898. Davidson had a factory in Belfast and his become became a main UK fan manufacturer in addition to Howden. The companies were merged in 1988.

H Corblin invented the diaphragm compressor in 1916 in France. His business joined with that of Burton who made piston compressors to form Burton Corblin that has become Howden BC Compressors.

The Stork brothers produced an aerofoil bladed centrifugal fan in the Netherlands in the 1940s. Developed with Howden to give 90% efficiency.

*A slide showing legacy brands is one of the additional slides at the end of the presentation.

Carter was a manufacturer of industrial fans based in Birmingham.Airscrew Howden was set up as a company, subsequently disbanded with Howden taking the industrial fan ranges and Airscrew, no longer part of Howden, making small fans for aircraft and military vehicles. Major acquisition/merger took place in 1988 when Davidson of Belfast and Howden, the two dominant UK fan companies joined to form Howden Sirocco. Davidson also had companies in N America and France. A decade of acquisitions followed.

Stork was the part of the Dutch company that became Howden Netherlands. Buffalo Forge became Howden Buffalo, now Howden North America.Variax became Howden Denmark but with some fan ranges from the Nordisk Ventilator group being absorbed by other Howden units.

Burton Corblin (France) became Howden BC Compressors.#

KWCA/Howden Ventiladores became Howden South America.

Joy Green became part of Howden Buffalo, now Howden N America.

Howden took over the compressor division of Bryan Donkin of Chesterfield. (This Donkin has no connection with Howden Donkin in South Africa)

Subsequently Howden took over Aeolus in Brazil in August 2008 and Austcold in 2010

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