As new coal-fired power plants come online to meet the growing demand for electricity in the United States and around the world, there is an increasing need to clean plant emissions to meet clean air regulations. Special pumps and valves help to efficiently operate these scrubbers and handle the abrasive slurry used in the flue gas desulfurization (>FGD) faiga.

Faatasi ai ma le alualu i luma o tekinolosi i le atinaʻeina o malosiaga fou i le seneturi talu ai, e tasi le mea e leʻi suia tele o lo tatou faʻalagolago i suauʻu faʻasolosolo, aemaise le koale, e gaosia ai le eletise. E silia ma le afa o le eletise i le Iunaite Setete e sau mai le koale. O se tasi o taunuuga o le mu o le koale i fale eletise o le tuʻuina atu lea o le sulfur dioxide (SO 2) kasa.

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TL FGD pamu

Faatasi ai ma le tusa ma le 140 afi eletise fou o loʻo i totonu o le Iunaite Setete lava ia, o atugaluga e uiga i le ausia o tulafono mama o le ea iinei ma le lalolagi atoa o loʻo taʻitaʻia ai le auala mo fale eletise fou ma o loʻo i ai nei - faʻapipiʻiina i faiga faʻapolopolo faʻavavevave. O lea ua aveese le SO2 mai le kesi fa'a'a'amu e ala i auala eseese e masani ona ta'ua o le fa'amama kasa fa'afefe (FGD). E tusa ai ma le Energy Information Administration, o loʻo tuʻuina atu fuainumera o le malosi mo le malo o Amerika, o loʻo faʻamoemoeina e faʻateleina a latou fale FGD i le 141 gigawatts o le gafatia e tausisia ai le setete poʻo le feterale fuafuaga.

E mafai e faiga FGD ona fa'aoga a le o le mago po'o le susu. Ole faiga masani ole FGD susu e fa'aaoga ai se vaifofo olo (e masani lava ole ma'a limestone) e mitiia ai le SO2 mai le kesi. O le fa'agasologa o le FGD susu o le a aveesea ai le sili atu i le 90% o le SO2 i totonu o le kesi fa'a'a'a'a ma mea ma'i. I se faiga fa'ama'i faigofie, o le limestone i totonu o le slurry e liua i le calcium sulfite pe a tali le limestone slurry ma le kesi fa'afefe i totonu o le absorber. I le tele o iunite FGD, e feula le ea i totonu o se vaega o le miti ma faʻamaʻiina le calcium sulfite i le calcium sulfate, lea e mafai ona faigofie ona faʻamamaina ma faʻafefeteina e fausia ai se mea mamago, sili atu ona mautu e mafai ona lafoaʻi i fanua faʻatau pe faʻatau atu o se oloa mo le faia o le sima, laupapa laupapa gypsum poʻo se faʻaopoopoga faʻapipiʻi.

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Pamu Slurry

Filifiliga pamu mo FGD

Talu ai o lenei limestone slurry e manaʻomia le gaoioi lelei e ala i se faiga faʻapisinisi lavelave, o le filifilia o pamu ma valve saʻo - ma le mataʻituina o latou tau atoa o le ola ma le tausiga - e taua tele.

O le faagasologa o le FGD e amata pe a fa'aitiitia le lapo'a (papa) e ala i le tu'imomomoina i totonu o le polo mill ona fa'afefiloi ai lea ma le vai i totonu o se tane sapalai. O le slurry (e tusa ma le 90% vai) e pamu i totonu o le tane miti. Talu ai ona o le tutusa o le limestone slurry e foliga mai e suia, e mafai ona tupu tulaga suction, lea e mafai ona taitai atu ai i le cavitation ma le pamu faaletonu.

O se vaifofo masani o pamu mo lenei talosaga o le faʻapipiʻiina lea o se pamu slurry carbide e tatalia nei ituaiga o tulaga. O pamu u'amea sima e mana'omia ona gaosia ina ia fa'asagatau i le tautua slurry sili ona ogaoga ma ua mamanuina foi ina ia faigofie tele ona tausia ma saogalemu. E taua tele i le inisinia o le pamu e mamafa fa'avaa ma fa'alava, vaega puipui fa'atele ma faigofie ona toe sui. Ole aofa'i ole fa'asologa ole tau ole olaga e taua tele pe a fa'amaoti pamu mo tulaga ogaoga fa'agaoioi e pei ole auaunaga FGD. O pamu maualuga chromium alloy e lelei ona o le pH pala o le slurry.

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Pamu Slurry

The slurry must be pumped from the absorber tank to the top of the spray tower, where it is sprayed downward as a fine mist that reacts with the upward-moving flue gas. Since pumping volumes typically range from 16,000 to 20,000 gallons of slurry per minute with heads between 65 and 110 feet, rubber-lined >pamu slurry o vaifofo sili ona lelei pamu. Toe fa'apena fo'i, ina ia fa'amalieina le tau o le ta'amilosaga o le olaga, e tatau ona fa'aauupegaina pamu i impeller lapopo'a mo le fa'aitiitia o le saoasaoa o le fa'agaioiga ma fa'aumi ai le ola fa'aofuofu, ma fa'atasi ai ma pa'u pa'u e mafai ona sui i fanua mo le tausiga vave. I totonu o se fale eletise masani e fa'amumu ai le koale, e lua i le lima pamu o le a fa'aogaina i olo ta'itasi.

Talu ai ona o le slurry e aoina i le pito i lalo o le olo, e manaʻomia ni pamu faʻapipiʻi paʻu faʻapipiʻi e feaveaʻi le slurry i tane teu, vaituloto, nofoaga e togafitia otaota poʻo masini faʻamama. Fa'alagolago i le ituaiga o fa'agasologa o le FGD, o lo'o avanoa isi fa'ata'ita'iga pamu mo le fa'asa'oina o le slurry, toe fa'aleleia muamua ma le suau'u suau'u talosaga.

If you want to know more information about the best FGD pump, welcome to >faafesootai matou i le aso nei pe talosagaina se upusii.