Насосная азбука: основные понятия

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<p> : #123.05.2014Andrei Ivanov </p> <p> # , , , , . , Wilo 2 </p> <p> , . #Wilo , , , , , , , 3 2. 1. 3. # 1. . , :. = + + . : , , ... ()2. 3. 4 2. , , 3. # , , , 5</p> <p> #: , , , ..:, , / , 20 , , , 1 Q # , , Q</p> <p>7: , - Q Q H + 1 # : , - , Q , </p> <p>8Q = Q H = H p &gt; p </p> <p> #HQ Wilo # : ()</p> <p> (, ) </p> <p>4. : , , , #</p> <p> # </p> <p> p , h : p = p0 + g h = p + g H #13 0 h . () . 0 , ()</p> <p> :m1 = m2 = mi = const = r 1 1 S1 = r 2 2 S2 = r 3 3 S3 [/ ]</p> <p> r 1 = r 2 = r 3 =const :</p> <p>Q1 = Q2 = Q3 = const = 1 S1 = 2 S2 = 3 S3 [3 /c]# S1, S2 S3= D2/ 4 , 1 , 2 3 . [/], [3/]. [3/], [3/]. , .. , . , . </p> <p>14</p> <p> h 1-2 </p> <p>z1 + </p> <p>= z2 + + </p> <p>+ </p> <p>+ []g h 1-2 </p> <p>gz1 + </p> <p>= gz2 + + </p> <p>+ </p> <p>+ [/ ] = [2/ c2] , , () h 1 - i .#Z1, 1, v1; Z2, p2, v2 - [], [] . , , , , 1, .., , , .h 1-2 ( ) 1 2. . .15</p> <p>: # , , 1 , 2 , 3 , 4 , 5 in-line , </p> <p># 1 , 2 , 3 ,4 </p> <p># H = p/ g =(p2 p1)/g , . : / ( 17398-78 : )Q = V, 3/. : 3/ .#</p> <p> : N/ 367, = Q ( ):2 =N / :2 /1 =2max #</p> <p>NPSH </p> <p>1 1 min#</p> <p> #6 5 4 3 2 1 </p> <p>hh h.h = H = + ( p)/g + h h #23 </p> <p>Q1#</p> <p> = + (p3 p1)/g = 0 HT = f(Q) = kQ2 QQ# HQ</p> <p>12 1 2 1 2 1 2 , ?# 1</p> <p># , h?</p> <p># , h?</p> <p>#</p> <p> ( ) ?</p> <p> , : , , ? #</p> <p> # : 1.1. - , , 1.2. : , , ! : 2.1. : , , 2.2. , , : , # . . - , .. .32 ( )HQ : 1 2 Q1 H1 </p> <p>1 ( 2 )Q2 H2 2# . , 1 2, .. Q1. , .. , : , 33 D2 .. (, 5% )</p> <p> H m Q m/h D1Q1H1</p> <p>D1D2Q2Q1D2~~D1H2H1D2~~D1 Q1Q2( )1D1D2H1H2( )2D1D2 Q2H2P2P1D2~~D1P2(1)P2(2)( )3D1D2 3 # , . 5% , !34</p> <p> 2 = 1 (n2/n1)2</p> <p>Q2 = Q1(n2/n1)</p> <p> 2 = 1 (n2/n1)312 # , 35 </p> <p>p-c = const, </p> <p>p-v = var </p> <p>p-T = f(T)</p> <p>Auto Manual </p> <p>DDC (Direct Digital Control) # : 36 = const (Q)</p> <p> (1)Q(1) = 7.2 3/ 1(1) = 390 (2)Q(2) = 2.8 3/ 1(2) = 230 1 = 1(1) - 1(2) = 160 #</p> <p> # </p> <p>) B) # ()</p> <p>. # , , I / II</p> <p>IIIIII</p> <p>#</p> <p>. #</p> <p> 1, 2, 3 . 1, 2, 3 . , 1, 2, 3 1, 2, 3, 4#44</p> <p>- ( ) ? , ?#</p> <p>: NPSH, # , , , : </p> <p> : , , ; </p> <p>2. , , ; 3. .# , , , . . </p> <p>46 NPSH , NPSH (NPSH Required) NPSH ( ) # NPSH , ( , .) , NPSHA (NPSH Available) () # </p> <p>NPSH NPSH &gt; (0.5 1) NPSH = (p - p )/g + v 2/2g#</p> <p>) NPSH = p - p = + g g h ) NPSH = p - p = 1 + g g h C) NPSH = p - p = 1 g g h NPSH p #</p> <p> # - . ?</p> <p> YY 35/150 2.2/2 (NPSH = 7 ) (t = 600 C) h = 2 . , , .. NPSH &gt; NPSHNPSH :NPSH = (p - gh - p )/ g = = 10.2 2 0.2 ( t = 200 C) = 8 #</p> <p>NPSH : NPSH = (p - gh - p )/ g = = 10.2 2 2 ( t = 600 C) = 6.2 , .. NPSH &lt; NPSH , : 1. h , NPSH &gt; NPSH ( );2. 200 ; 3. ( ).# </p> <p># </p> <p>: 103/ 15 1. Wilo Select : 604 DM NPSH=3,6 ; 2. ! L = 25 L h = 2,5 h# </p> <p> () : . (): , =(p1 gNPSH p gh )/g#</p> <p> # 57 :</p> <p> 20 </p> <p> () 16 20 </p> <p> 20 </p> <p># . , , . 16 20 000 . 210-5 2102 /2.58 1! , , , , ! , 12.1.003 83. 2.2.4/2.1.8.562-96 , , . 2! , , ! #59</p> <p># , 60 : </p> <p> f (), , 1,61000 </p> <p> , </p> <p> , / </p> <p> , /2 # , , , 61, 1! , , , -:</p> <p> , , , , . </p> <p> , </p> <p> , , # , , , . .62 1! ( , ) ( ). 2! , .. - ! 3! , , , , .#63 12.1.012-78 - . </p> <p> , 2.2.4/2.1.8.56696 " , ". : ; ; .</p> <p> 30 (, , , </p> <p># </p> <p>64</p> <p> # :</p> <p> # Wilo-Stratos</p> <p> 3D- ..# :+- ( , )</p> <p> ( 3 )# () </p> <p> : #In-line Wilo-IL</p> <p> ... # </p> <p> IPL</p> <p> IL BL</p> <p># IL : il-line + + + + () + . IPL : 1 - in-line + + () + , 2 - in-line + + + + () + . L : il-line + + () + . IL , , , NPSH . </p> <p> , BL , .</p> <p>71 </p> <p> NL</p> <p> SCP# . , , . . , , (. NL). SCP . 72 : </p> <p># ():1. , 2. , 3. : (): 20%, , </p> <p>2. 100% : # : </p> <p> - - - . # : ( Kevlar) ( , ) , (, ) </p> <p> : # : </p> <p>#</p> <p> : = ( 6 5) + 7 = . 2 . 3 - 4, 1 - : # </p> <p> : # </p> <p> # , , #</p> <p>MHI</p> <p>MHIE</p> <p>MVISE</p> <p>MVI</p> <p>MVIE</p> <p>MVIS </p> <p>MHIL</p> <p>Helix</p> <p>MVIL</p> <p>Helix VE#</p> <p> IP54 IP55 . AISI 304 316L EPDM Viton PTC:PN16 , PN25 , MVI#</p> <p> ! MVIS#1. ( )2. . </p> <p> # Economy1. CO 2-4 MHI /ER(SK)-EB-(WMS)-R2. CO 1-4 MVI /ER(SK)-EB-(WMS)-R 3. CO 1-4 MVIS/ER(SK)-EB-(WMS)-R</p> <p># WILO-Economy</p> <p> Economy# Economy CO 2 MHI /ER-EB-WMS-R CO 2 MHI /SK-EB-R CO 3 MHI /ER-EB-R</p> <p># Comfort-Vario1. COR 1-4 MHIE (EM)/VR(GE)-EB-(WMS)-R2. COR 1-4 MVIE (EM)/VR(GE)-EB-(WMS)-R3. COR 1-4 MVISE(EM)/VR(GE)-EB-(WMS)-R4. COR 2-4 MHI (EM)/SKw-EB-(WMS)-R5. COR 2-4 MVI (EM)/SKw-EB-(WMS)-R6. COR 5-6 MVI /SKw-(WMS)-R7. COR 2-4 MVIS (EM)/SKw-EB-(WMS)-R8. COR 5-6 MVIS /SKw-(WMS)-R</p> <p>#</p> <p> Comfort-Vario </p> <p> ( ) 1 20/26 96 % .* : 5,0 = 0,1 5,0 = 2 % 0 (20/26 ) . 50 MVISE 65 MVIE/MHIE 1 2120100 80H[m] 60 40 20 0 0 2 4 6 8 10 12 14 16Q[m/]#</p> <p> Comfort-Vario</p> <p>COR 3 MHIEEM/VR-EB-R</p> <p>COR 1 MHIEGE-RCOR 2 MHIE/VR-EB-RCOR 3 MHIE/VR-EB-RCOR 4 MHIE/VR-EB-R # ( ) 40, 2 . ( Poter PS120) .( ) 5 . ( Poter PS120) :2 . - .( )2 . - .( )1 . - 2 100 0-16 , .- ( ) 1- : ( ) 2 - 3 MVI BL, , , , , , . . : ( ) 2 - 3 MVI BL, , , , , , - , . . 1- (-). . 40 . .# </p> <p>#93</p>

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