Chifukwa kugwiritsa ntchito pampu ya slurry ndi yayikulu kwambiri, mawonekedwe amadzimadzi amasamutsidwa nthawi zina amakhalanso kusiyana kwakukulu, zochitika zosiyanasiyana zogwirira ntchito zimakhala ndi zofunikira zosiyanasiyana pakuyenda kwa mpope ndi kukakamiza, kuti akwaniritse zofunikira za mpope m'malo osiyanasiyana. , pali mitundu yambiri ya mpope, nthawi zambiri imatha kugawidwa molingana ndi mfundo yogwirira ntchito ya mpope, ndipo kugwiritsa ntchito kwake kungapereke kukweza.Malinga ndi mfundo ntchito mpope akhoza kugawidwa mu zabwino kusamuka mpope, vane pampu ndi mapampu amtundu wina magulu atatu
Positive kusamutsidwa mapampu amadalira voliyumu kusintha nthawi kwaiye ntchito voliyumu kuyamwa ndi kutulutsa madzi, pamene voliyumu ntchito ukuwonjezeka, pampu suction madzi;pamene amachepetsa, mpope kutulutsa madzi.Makhalidwe a Kinematic malinga ndi ntchito ya mtundu uwu Li nawonso amagawidwa kukhala:
1. Njira yogwiritsira ntchito mpope yobwerezabwereza yobwerezabwereza.Pampu yamtunduwu ndi pampu ya pisitoni, pisitoni, mgoza wa diaphragm ndi zina zotero.
2.Mabungwe ogwiritsira ntchito mapampu a rotary kuti azizungulira mozungulira.Pampu yamtunduwu ndi pampu ya giya, pampu yowononga,makampani opopera miyalamapampu otsetsereka.
Vane mgoza kudalira imodzi kapena zingapo mkulu-liwiro kasinthasintha wa chochititsa kulimbikitsa kutuluka kwamadzimadzi, kukwaniritsa zoyendera madzi.Malingana ndi madzi omwe amapita kumalo othamanga a pampu vane pampu amagawidwa kukhala:
1.Pump madzimadzi akuyenda kwambiri kudzera mpope, mphamvu kukankhira madzi otaya pamene mphamvu centrifugal kwaiye ndi kasinthasintha wa impeller.
(2) Axial madzimadzi otaya axially kudzera mpope, mphamvu kukankhira madzi otaya impeller axial kukankha kwaiye pamene kasinthasintha.
3. Kuyenda kwamadzimadzi a pampu mu mpope kumapita ku shaft ya mpope mu ngodya inayake, mphamvu ikukankhira madzi otaya pamene mphamvu ya centrifugal imapangidwa ndi kuzungulira kwa chopondera ndi mphamvu ya axial.
4 - Vortex mpope madzi mu mpope kwa ofukula vortex otaya, kudalira impeller atembenuza kulimbikitsa vortices kwaiye ndi kayendedwe kuyamwa madzi ndi kukhetsa madzi.
Mitundu ina ya mapampu nthawi zambiri imadalira mphamvu zamadzimadzi (zamadzimadzi, gasi) kapena kinetic energy hydrostatic transmission fluid.Choncho, amatchedwanso pampu hydrodynamic, monga mapampu ndege, madzi mgoza, etc. nyundo.
Zoyambira zazikulu zapampu ya miyala zili ndi izi:
1, kuyenda kwa Q
Kuyenda ndi kuchuluka kwa pampu ya miyala yamadzi mu nthawi yotulutsa (voliyumu kapena mtundu).
Volume flow ndi Q anati, unit ndi: m3/s, m3/h, l/s etc..
Kuthamanga kwakukulu ndi Qm adati, gawoli ndi: t/h, kg/s.
Ubale pakati pa kuyenda kwa misa ndi kuthamanga kwa voliyumu kwa:
Qm= ndi Q
Mu chilinganizo ρ - madzi osalimba (kg/m3, t/m3), yachibadwa kutentha madzi P = 1000kg/m3.
2, mutu wa H
Mutu ndi unit kulemera kwa madzi miyala mpope mpope kunja ku miyala mpope (inlet flange miyala mpope) kuti miyala pa potuluka mpope (popu outlet flange miyala) mphamvu increment.Mphamvu yabwino ndi madzi a Newtonian omwe amapezeka ndi pampu ya miyala.Unit ndi N?m/N=m, kutalika kwa madzi ndime yopopera miyala yamadzimadzi, zizolowezi zomwe zimatchedwa M.
3, liwiro n
Liwiro ndi liwiro la nthawi ya pampu ya miyala yamtengo wapatali, yomwe imasonyezedwa ndi chizindikiro n, gawo la r/min.
4, NPSH NPSH
NPSH amatchedwanso ukonde zabwino kuyamwa mutu, anasonyeza makamaka magawo cavitation ntchito.NPSH pa ntchito zapakhomo Δ H.
kg/m3）
5, mphamvu ndi magwiridwe antchitoKusankha maziko a slurry pampu
Mphamvu yapampu ya miyala nthawi zambiri imatanthawuza mphamvu yolowera, yomwe ndi chilimbikitso choyambirira chinabwera ndi mphamvu yamtengo wapatali yamtengo wapatali, choncho imatchedwanso mphamvu ya shaft, yomwe imayimiridwa ndi P;
Pampu ya miyala yogwira ntchito imatchedwanso mphamvu yotulutsa, yoyimiridwa ndi Pe.Ndilo mphamvu yogwira ntchito yanthawi kuchokera papampu ya miyala yotulutsa kuchokera mumadzi mu mpope wa miyala.
Chifukwa Nyamulani ndi mphamvu mphamvu miyala mpope linanena bungwe kulemera kwa madzi kuwapeza ku mpope miyala, kotero mutu ndi misa otaya mlingo ndi mathamangitsidwe wa mphamvu yokoka, ndi wagawo la nthawi kuchokera miyala mpope linanena bungwe madzi analandira mphamvu yogwira - ndicho miyala mpope dzuwa. mphamvu:
Pe= ρ gQH (W) = gamma QH (W) chilinganizo ρ kachulukidwe — madzi mpope miyala (kg/m3);
Kwambiri gamma - madzi mpope miyala (N/m3);
Q - pampu ya miyala (m3 / s);
H - mutu mpope miyala (m);
G - kuthamanga kwa mphamvu yokoka (m/s2).
Shaft mphamvu P ndi mphamvu Pe ya kutayika kwa mphamvu ya pampu ya miyala, kukula kwa muyeso wapampu wa miyala.Kugwira ntchito bwino kwa pampu ya miyala ngati mphamvu yogwira ntchito komanso chiŵerengero cha mphamvu ya shaft, pogwiritsa ntchito η.
Nthawi yotumiza: Jul-13-2021