NGHIEN CtfU-TRAOPQl /DAU QUAY KH6NG LOI DONG N\yOc AP LLTC CAO LAM SACH CAU CAN LONG N G TOP ROTATING NO CORE USE HIGH PRESSURE WATER TO CLEAN THE INSIDE PIPE LAYER DEPOSITIO ThS Ngo Xuan Cirdng, KS Le Dang ThSng, KS Dd Thanh Tung, KS K i k Dang Tru-img Phdng Thi nghiem Trpng dilm Cdng nghe Han va Xii ly bk mat, Vien Nghien ciiru Ca TOM T A T Bdi bdo gidi thieu sdn phdm khoa hoc cong nghe, chi tgo ddu quay diing nuac dp li^c cao ldm sgch can ben long dng cd chieu ddi ldm Ap dgng nguyen ly biin doi ndng luang, tinh chdt cua cdu c^n, ndng luang vd dap ldm ca sd tinh todn thiet ke Sdn phdm ddu quay khdng loi dung nuac dp luc cao ldn ddu tien duac thiit ki, chi tgo nude, thay thi hdng nhdp ngogi Su dung ddu quay khdng loi diing nuac dp luc cao cho thdy nhimg uu diem rdt thich hgp cong tdc ve sinh cdc h? thdng trao ddi nhiet vi khd nang ldm viic, gid thdnh dem lgi hiiu qud kinh te Nhimg tinh nang ca bdn cua sdn phdm: Cdu tnic nhd ggn, ndng sudt cao, chdt luang ddm bdo, tdng chieu sdu ldm viic, su dung an todn vd thay thi thugn tien Tir khoa: Cdng nghi ldm sgch dng; Bdu quay dung dp luc nuac ABSTRACT The paper introduce the technology science product: manufcturing the Rotated Head, using hight pressure water to clean the sediment in pipe with big length Using the principle to change, the energy, quality of sediment, clashed energy for basis to calculat the design The Rotated Head Product without core to use hight pressure water, being designed in first time domestic to replace the export product Using the Rotated Head no core have suitable advantage to clean the heat exchange system, about ability of working, reducing price for economical efficient Basical feature of product: small structure, hight productivity, assured quantity, increasing working depth, safe in using and it is convenient to replace the components Keywords: Tube cleaning technology; Rotating top uses water pressure ISSN 0866 - 7056 TAP CHI CO KHi VIET NAM, Sd 1+2 nam 2016 www.cokhivietnam.vn ^ , NGHIEN CUfU-TRAO Ddi 1.GI6ITHIE:U CHUNG - Dudng kinh long dng: D36; - Chieu day can bam: 2- 3mm; - Dac tinh can CaCOj; MgCOj; - Nang suat du kien: 20m/h; - Ap luc nude: 40bar Hinh Ddu ldm sgch diing dp luc 4.2 TINH TOAN BIEN DOI NANG LlTQNG "THUY-CO" 4,2.1, Tinh toan md men sinh b&i rd to thuy San phfim dau quay khong loi lam sach liec, vgn tdc quay ddu rd to cau can bang nude ap luc cao la kdt qua nghien ciiru thiet ke che tao thugc de tai cap Bd, ma sd Trong qua trinh lam sach dudng dng, 02.15 PTNTD CNH/HD - KHCN Day la san diem dau cua biia se dat dudng kinh D=36mm phim mdi dugc nghien cuu thidt kd ehd tao lin de lam sach cau can Theo [1]: dau tien nude San pham nay, cd tinh nang rat phu hgp va lam vide hieu qua cdng tae Van tdc gdc true rd to dugc xac dinh: ve sinh eac he thdng trao ddi nhiet cho cac nha may nhiet dien, xi mang, hda chit Co = ^=^[Rad/s] CAU TAO R - Dau biia; - Md ta; - Day dan ap luc Sd vdng quay tren true rd to se dugc tinh: n= - Kich thude: D 30 mm x 160 mm; - Khdi lupng: 0.45 kg; - Tdc quay: 7500 v/ph; - Ap luc nude: 40 bar; - Tam lam viec cua diu bua: Tu D32 - D52; - Chidu dai lam viec: - 30m; - Nang suit danh can CaCOj, MgCO, day 2mm la: 40m/h; - Pha dugc tit ca cac loai cau can bam ldng dng va cac dng co tiet dien thay ddi tim lam viec cua dau biia 4.1 Cac tham so cho tru-dc [Vdng/phiit] (1.2) 27r DAC DIEM CHINH CO s d TINH TOAN THIET KE (1.1) D Tu do, tinh dugc: n = 7576 [Vdng/ phut] Theo [2], md men sinh tren true ro to se la: M = pQ (C,R^ - CJL) = p Q (C, .•, Cos o, Cj ij Cos a^) Ro to dugc su dung dudng kinh 20mm, rj=10 mm, gia su dp leeh tam la cue dai, liic r^=0mm Vdi loai rd to canh phang dupe dat vudng gdc vdi budng thi a,^ a^^O Luc md men tren true rd to duac tinh: "^ ISSN 0866 - 7056 TAP CHi CO KHi VIET NAM, Sd +2 nam 2016 www.cokhivietnam.vn NGHIEN ClJfU-TRAOeOl M= p Q C r = p Q (0 r , ^ 1000x3!3x793x0.01^262 (N.m) Bpng •'^'"S cua bua dap sinh duoc xac dinh theo cong t h i c theo [6]: 4.2.2 Tinh toan lim lufmgmrdtc sit dung tuamotathuyltfc , ,, „ £, = - ^ C N m ) f^V^ (1-6) Cong suit tren true ro to mo men tao Trong do: nen N = M.m Cong suit dong nude tao m - Khoi lugng dau biia, kg; nen, dugc tinh theo cong thrre; v, - Van toe bua truoc dap, m/s N = p g Q H n (1-3) S™ •*' ^W' ^^^ ' " ^ "'^ "*" ° ' ' ^'°8 nang la: Vcri a=nH hieu su4t thuy luc mv,^ ^ , , mi £ = 2-(N.m) (1.') Theo [7], thi n.=0.8*0.85; Ta chon irO.8 Trong do: Theo pham vi nghien cim cua dS tai, v, la van tdc cila bua sau dap, m/s; bucfc tiln ciia dau lam sach la: A Nhu vay, dpng nang cua bua truyen cho t=20m/h hay t=5,6 mm/s hat cau can se la: mVj _ - =„ -E,-E,=—!- - mv, l ^ - : ^ = i!l(v,^-v,^)(1.8) AE Chieu day lop cdu can la d = 2mm , , 11 , Hay: T6ng s6 hat cau can tren 1=5,6 mm chieu daiSng: A£ ==- ^ ( l ^il-e^) -e') (1.9) AE 3(Z)'-Z)^)/ 16rf' V6i:Vj=ev, Voi: D la ducmg kinh 6ng, D=36mm; e la he s6 phue h5i, no phv vao hinh D - Duong kinh long bam can, dang, ban chat vat Heu ciia cau can can dap lam D_=32mii; sach d - Duong kinh hat cau can; d= 2mm; 1- Buoc tito cua d k quay Is, Vol loai cau can da voi, chon: £ = 0,290[6] 1^5,6mm; ,,, Cong suit nguon thuy luc cjn dat dugc: Cong can thiet de pha vo v?t heu: L6J vn' rf\i ,sj> ,xin' n'l/ iV,fl^J(^-^.)'!g_.'^^P-^.)'[W](1.5) I6d' 12E (AE ^4= 2£ = 12£ [N.m] (1-10) Trong do: Tu do, xac dinh dugc: Q=3,3 m^/h d - Duong kinh hat cau can, m; 6- LTng suit pha vo vM lieu cau can, N/m^; 4.3 Tinh toan cac thong so flan bua flap: VSn E- Mo dun dan h6i cua vat lieu dem dap, N/m; t^c dau quay, trgng luwng va s6 Ingng biia flSp Dieu kien de cac hat cau can bi pha va la: ISSN 0866 - 7056 TAP CHl CO KHi VIET NAM, S6 1+2 nam 2016 www.cokhivietnam.vn NGHIEN CUfU - TRAO D6\ AE>A TlS^d' m>[kg] 6Ev^(l-s) (1.12) Mat khac, ta cd thd tim van tdc ciia biia trudc dap nhu sau: Thay thd tich vat lieu dem dap: y = — vao (2.5), rdi theo dieu kien (2.6), ta cd: P ^ ( - ^ ) a T ^ [Hi's] Bdng cdc thdng so ky thudt ddu quay (1.11) Tvr day, ta tinh dugc: 2Ep TT T§n thong so Don vi Gia tri 36 Duong Vinh long ong mm Chieu day cau can mm 40 Ap suat dau vao bar Luulugng m'/h 3,3 So vong quay ro to vong/phiit 7576 Mo men dau biia N.m 262 Khoi lugng dau biia g So dau biia tren ro to Cai Buoc tien m/h 20 (113) KET QUA iTNG DUNG CIIA SAN PHAM Tu day ta rut ra: V, > S, 1^—^—— [m/s (1.14) Vdi loai vat lieu cau can da vol ta co: [6] E=7 W N/mm^ = 7.10'° N/m' 5=25+190 N/mm^ = 25 10'+190.10'N/m' (Chgn 8=190.10'N/m') p=2680 + 2760 Kg/m= (Chgn =2760 Kg/m') Hinh • Ong trao doi doi nhiet D36 bdm can: 1) Phdn ldng ong da duac ddnh can; 2) Lap can CaCO^ ddy mm Thay ket qua vao (2.7), ta tinh dugc gia tri kh6i lugng dau bua can dat dugc: m> 9,2.10^ Kg = 9,2.10-'g T6ng hgp cac k^t qua tinh toan va dii kien cho truoc xay dung dugc cac thong s6 ky thuat dau lam sach Hinh Ddnh can gidn ong tren thdp trao doi nhiet tgi hien truang 1) Viing dng chua duac ddnh can; 2) Ong sau da duac ldm sgch cdu can ^ ISSN 0866 - 7056 TAP CHi CO KHi VIET NAM, Sd 1+2 nam 2016 www.cokhivietnam.vn NGHIEN C U T U - T R A O D O I Cac ket qua thu duac: m - Ch4t lugng lam sach: Pha dugc hdt cau can bam dng, khdng gay hu hai hay bien dang long ong - Nang su4t: Ddi vdi dieu kien cu th8 cua hien hudng thi nang suat lam sach ciia dSu quay cao ban g^p ISn so vdi dang ky Nang suit lam sach tai hien tnidng cao han lan so vdi cac phuang phap ve sinh trudc d Cdng ty Cd phin Supe Phdt phat va Hda ch4t Lam Thao KET LUAN San pham cua dau quay dugc nghien cuu thiet ke che tao lan dau tien nuac cd kilu dang dae trung ggn nhe de thao tac cho ngudi su dung Qua thuc te cho thSy, dau quay khdng loi khdng nhung chi su dung bang nude ap lire cao ma cdn hoat ddng binh thudng dimg cac mdi chat khac hoac diing nen ap luc cao Sii dung dau lam sach khdng loi rat phu hgp va hieu qua cdng tac ve sinh cac he thdng trao ddi nhiet San pham can phai dugc hoan thien va cung ckp thi trudng • Ngay nhan bai: 08/11/2015 Ngay phan bien: 11/12/2015 Tai lieu tham Idiao: [1] Nguyin Trong Hiep; Chi tiit mdy (tapl,2) NXB Giao due (2000) [2] Nguyen Quang Doan; Gido trinh mdy bam vd tram bam, Trudng Dai hgc Thiiy lgi [3] Hoang Dinh Dung, Hoang Van TSn; Mdy thuy luc tuabin nu&c vd mdy bam, NXB Xay dimg Ha Noi (2001) [4] Nguyin Ngpc Diep, Le Thanh Vu, Nguyin Dire Nam; Gido trinh Hi thdng nen - thuy luc, NXB Tnidng Dai hgc Cong nghiep TP H6 Chi Mmh, thang 10/2007 [5] Hd Le Vien; Cdc mdy gia cdng vdt lieu ran vd deo.KKB Khoa hpc va Ky thuat [6] http://www.maybomthuyluc.com/ [7] https://hethongthietbithuyluc.wordpress.com [8] https://www.cvisairstarters.com ISSN 0866 - 7056 TAPCHiCOKHiVl£TNAM,Sd l + n a m www.cokhivietnam.vn -^lii ... 4,2.1, Tinh toan md men sinh b&i rd to thuy San phfim dau quay khong loi lam sach liec, vgn tdc quay ddu rd to cau can bang nude ap luc cao la kdt qua nghien ciiru thiet ke che tao thugc de tai... dieu kien cu th8 cua hien hudng thi nang suat lam sach ciia dSu quay cao ban g^p ISn so vdi dang ky Nang suit lam sach tai hien tnidng cao han lan so vdi cac phuang phap ve sinh trudc d Cdng ty Cd... ky thudt ddu quay (1.11) Tvr day, ta tinh dugc: 2Ep TT T§n thong so Don vi Gia tri 36 Duong Vinh long ong mm Chieu day cau can mm 40 Ap suat dau vao bar Luulugng m''/h 3,3 So vong quay ro to vong/phiit