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3 " !
! % & $3 & " 2
D = k D , |
(3.1) |
k – & 3, % ! 3 & / -
$! . ! " . $ $6, -
/ "$ " .
( % 219 , % 3 k = 0,98 [1].
D = 0, 98 0, 211 = 0, 207 .
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υ = |
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4 Q |
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υ = |
4 0, 053 |
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= 1, 564 |
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π 0, 2072 |
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7 " % " $3 & " 2 |
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Re = |
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(3.3) |
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ν t |
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Re = |
1, 564 0, 207 |
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= 13043, 9. |
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24, 796 10−6 |
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" ( 219 ( #$ $ 7 " % " Re1 = 13000, # Re2 = 1000000 [1]. : $ , ( - $ $" % " ! / #$ , & 3 # "$-
# λ ! & " 2
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1, 7
λ = + ,
Re0.5
– & 3 & ".
" & 219 = 157·10-4 [1].
λ = 157 10−4 + |
1, 7 |
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= 0, 0306 |
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13043, |
90.5 |
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, "$ $3 & " 2 -% !
(3.4)
(3.4)
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h = λ |
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υ 2 |
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(3.5) |
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Dp |
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2 g |
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h = 0, 0306 |
440 103 |
1, 5642 |
= 8155,18 |
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0, 207 |
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2 9,81 |
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-" # " %, % 3 -
! ! % 3 " 2 % # "$! [1].
-/
H = 1, 02 h , |
(3.6) |
H = 1, 02 8155,18 = 8277, 48 .
! $" ! % $3 & " 2
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np |
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(3.7) |
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z – #$! ;
np = 8277, 48 + (−25) = 8, 63 955,8
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. – 41.00.000 |
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#"23 " ( # " # $", % 3 np = 9 %.
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"
! ! ! & , 6 -
% ( ! ! " ! $ "-
$% .
" ! & 219 . -
2 / 2 440 9.
. " 3
180-500, ! ! , # " 6
$ , " ( " " , -
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! #
1. . . " # &: $. ["
. 6. $. ".] / . . , ,. . - )-*:
)* + ,, 2013. - 664 .: ".
2." ! %: ./
. ., 2 . . - )-*: )* + ,, 2010. - . 119 .: ".
3.http://www.6.&/nasosnoe-oborudovanie-v-nalichii/8nd6h1/
4.( :. . / # " ! : $ . – )-
-*: )* + ,, 2009 – 563 .
5. 2.05.06-85 # " @ @. , % . – .: 98
, , 1885. – 52 .
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$ %
%,-% .% % % % % ! 180-500
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$ &
%,-% .% % % % % !8-6.1
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