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) usoro.

Site n'ọganihu teknụzụ niile na-emepe emepe ike ọhụrụ n'ime narị afọ gara aga, otu ihe na-agbanwebeghị nke ukwuu bụ ịdabere na mmanụ ọkụ, karịsịa coal, iji nweta ọkụ eletrik. Ihe karịrị ọkara nke ọkụ eletrik na United States na-abịa site na coal. Otu n'ime nsonaazụ coal na-ere ọkụ na ụlọ ọrụ ike bụ ntọhapụ nke sulfur dioxide (SO 2) gas.

>

TL FGD mgbapụta

Na ihe dị ka 140 ọhụrụ coal-chụọ n'ọrụ ike osisi na pipeline na United States naanị, nchegbu banyere izute dị ọcha ikuku ụkpụrụ ebe a na gburugburu ụwa na-eduga ụzọ maka ọhụrụ na ẹdude ike osisi - onwem na elu emissions "scrubbing" usoro. A na-ewepụ SO2 ugbu a na gas flue site na ụzọ dị iche iche a na-akpọkarị flue gas desulfurization (FGD). Dabere na nchịkwa ozi ike ike, nke na-enye ọnụ ọgụgụ ike maka gọọmentị US, a na-atụ anya na ụlọ ọrụ ga-abawanye akụrụngwa FGD ha na gigawatt 141 nke ikike iji rube isi na atụmatụ steeti ma ọ bụ gọọmentị etiti.

Sistemu FGD nwere ike iji usoro akọrọ ma ọ bụ mmiri. Usoro FGD mmiri a na-ahụkarị na-eji ngwọta nchacha (na-abụkarị slurry limestone) iji nweta SO2 site na iyi ikuku gas. Usoro FGD dị mmiri ga-ewepụ ihe karịrị 90% nke SO2 n'ime ikuku flue na ihe dị mkpa. Na mmeghachi omume kemịkalụ dị mfe, a na-atụgharị nkume nzu dị na slurry ka ọ bụrụ calcium sulfite mgbe slurry limestone na-emeghachi omume na gas flue na ihe ntinye. N'ọtụtụ FGD nkeji, ikuku na-afụ n'ime akụkụ nke ihe na-ekpo ọkụ na oxidizes calcium sulfite na calcium sulfate, nke a na-enwe ike ịchacha ya ngwa ngwa ma mee ka mmiri mee ka ọ bụrụ drier, ihe kwụsiri ike nke nwere ike ịwụfu na nsị ma ọ bụ nwee ike ire ya dị ka. ngwaahịa maka ịme ciment, gypsum wallboard ma ọ bụ dị ka ihe mgbakwunye fatịlaịza.

>

Mgbapụta mgbapụta

Nhọrọ mgbapụta maka FGD

N'ihi na slurry nkume nzu a kwesịrị ịga nke ọma site na usoro mmepụta ihe dị mgbagwoju anya, ịhọrọ nfuli na valves ziri ezi - na-ele anya na ọnụ ahịa na nhazi nke ndụ ha zuru oke - dị oke mkpa.

Usoro FGD na-amalite mgbe nri limestone (nkume) belatara nha site n'ịgwepịa ya na igwe igwe bọọlụ wee gwakọta ya na mmiri n'ime tankị ọkọnọ. A na-awụnye slurry (ihe dịka 90% mmiri) n'ime tank nke absorption. Ebe ọ bụ na nkwụsi ike nke slurry limestone na-agbanwe agbanwe, ọnọdụ nsị nwere ike ime, nke nwere ike iduga cavitation na mgbapụta mgbapụta.

Ihe ngwọta mgbapụta nke ọma maka ngwa a bụ ịwụnye mgbapụta slurry carbide iji nagide ụdị ọnọdụ ndị a. Ọ dị mkpa ka arụpụta nfuli igwe simenti ka ọ nagide ọrụ slurry kacha njọ ma bụrụkwa nke a haziri ka ọ dị mfe idobe yana nchekwa. Ihe dị mkpa na injinia nke mgbapụta ahụ bụ okpokolo agba na ogwe aka dị arọ, akụkụ mgbidi ndị nwere oke na akụkụ ndị nwere ike dochie ngwa ngwa. Ntụle ọnụ ahịa usoro ndụ okirikiri dị oke mkpa mgbe a na-akọwapụta nfuli maka ọnọdụ arụ ọrụ siri ike dịka ọrụ FGD. Igwe nfuli chromium dị elu dị mma n'ihi pH na-emebi emebi nke slurry.

>

Mgbapụta mgbapụta

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 >slurry nfuli bụ ngwọta mgbapụta kacha mma. Ọzọ, iji zute ihe nleba anya na-eri oge ndụ, nfuli kwesịrị ịkwado ya na nnukwu ihe na-eme ka ọ dị elu maka ọsọ ọsọ na-arụ ọrụ na ogologo oge ndụ, yana ndị na-eji akwa rọba dochie ubi maka nhazi ngwa ngwa. N'ebe a na-arụ ọrụ ọkụ na-agba ọkụ, a ga-eji nfuli abụọ ma ọ bụ ise mee ihe n'ụlọ elu nke ọ bụla.

Ebe ọ bụ na a na-anakọta slurry na ala ụlọ elu ahụ, a na-achọ nfuli rọba ọzọ iji bufee slurry na tankị nchekwa, ọdọ mmiri ọdụ, ụlọ ọrụ mkpofu ma ọ bụ igwe nzacha. Dabere n'ụdị usoro FGD, ụdị mgbapụta ndị ọzọ dị maka mwepu slurry, mgbake tupu scrubber na ngwa sump mmanụ.

If you want to know more information about the best FGD pump, welcome to >kpọtụrụ anyị taa ma ọ bụ rịọ a see okwu.