Pumps calculation

7/27/2019 Pumps calculation

1/52

.

: : 1501 . -.

:. -.

, 2013


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2

1. .................................................................................................. .......................32. ....................................................6

3. ...............74. ................................174.1 .........204.2 ................................................................224.3 ........................................................................244.4 ..................................................................................254.5 ...........................................................................26

4.6 ......................................................................264.7 .......................................................27

5. CF TURBO ........................................................................29

6. ............................................................................................397.

CF Turbo................................................................................418. .......................................................................................................42

8.1 ...................................448.2 ...............................................................................448.3 ........................................................................45

9. ................................................................................. .................................4810. ...........................................................................................48


3/52

3

1.

, .

, , .

. , , . , :

- -

- -

, , , . .

:

) , :

- ()

- -

-

) :

-

) :

-

-


4/52

4

) :

-

-

-

) :

-

-

) , :

-

-

-

-

-

) :

-

-

-

-

, , . . , .

1 . ( ) (1). ( ) ( ) . , . .


5/52

5

. . . (2) . () (4) . (3), , .

1.1


6/52

6

2.

, : Q[m

3/s] [m]; [mVS].

, . , . 1000, 1500 3000 [vr/min], 3% 970, 1450, 2900 [vr/min]. , 1000 1500.

, -

. , 1500 [min-1], 3000 [min-1] . .

, , , , .


7/52

7

3.

, Q [m3/s], H[m] n [min-1],

:

= 3.13

n [vrt/min]

H [m]

Q [m3/s]

, . , :, - ( ) - .

, , , .

, . . :

=

-

, , :

=

:

=1

1 + 0,68

() () .


8/52

8

h , :

= 1 ( , . )

.

D0,pr,

mm :

, = (4 4,5)10 [ ]

, :

- -

:

=1000

[ ]

:

[ ]

[ ]

H [mVS]

Q1[m3/s] - ;

= ;

:

= (0.96 0.98)1

1 +;

=

. :

=1

1 +,


9/52

9

, , . ms=0,960,98

, :

= (1.1 1.2) [ ]

dvr ,

= (300 500)10 [ / ]. :

=16

:

= 10 [ ]

=30

3.1 , , .

3.1 -

D0 , ( ). :


10/52

10

=4

:

= 4 +

- ;

c0 :

= (0.06 0.08) ;

c0,

, :

- n=1500 min-1 , :

= (0.02 0.08) [ / ]

- 200 l/s 1000min-1 :

= (0.02 0.05) [ / ]

- 3000 min-1 100 l/s

= (0.02 0.04) [ / ]

- 100 l/s 3000min-1 :

= (0.03 0.06) [ / ]

, :

= (1.3 2.5)

365

[ / ]

HmVS.

= 14 36 . , , , .


11/52

11

b1 , , c 1m c0( ). D1 :

= (0.58 0.72)

c1m D1 :

=

3.2,

. ( ) , :

7200

60

:

= (0,5 1,0) .

D2 , :

3.2 - .


12/52

12

=

. . Ri Re

.

, , , .

:

s

=

. 5%.

, .

, , , . , (cm=const), ,

, . . 3.3 .

3.3 -


13/52

13

, , .

, , . .

, . . = 1,15 1,35

= 1,05 1,20 : =

= .

8 , .

,

, .. = , :

= + 1 +

= ,

3.4 -


14/52

14

=

- 5 6 .

, z .

, () ( ), :

= +1

+

.

:

=

:

1,2 1,5 = 200 70

1,5 2,1 = 70 40

< 80, .

, , k :

=1

1 +( )

: = (0,55 0,68) + 0,6 -


15/52

15

80, . :

=1

1 +

= -

k, :

=2 2

+

=2

= =30

:

= [ ]

: =

, , ( ) . ,

3.5 -


16/52

16

( ) .

( 9), ( ), , ,

, :

= ; = ;

.

:

=1

1

=1

1

=2

=2

( ) , . , :

=

:

=


17/52

17

3.6 -

, . 30 80 (150), :

= + 3 8 (15 ).

180.


18/52

18

4.

, ( )

, .

, () .. . , . , .

( ) , :

- ;

- , () ;

- , .

, , , , .

, :

- ( )-


19/52

19

4.1 -

() ( ) . , ( )

( ). .

, , , 10% 20%. , ( ), .


20/52

20

. :

- () ,

- ,

- ().

() , , , .

:

-

()- ( ) ,

. , .

, , ( , ).

, :

- (1)- (2)- (3)- (4)

4.2

.


21/52

( ,

, .

., ,

. ,

. ()

4.2

1.

2.

3.

4.

.

).

.

, , .

, .

,

( ), .

, , . ,

).

21

, .,

,

(


22/52

22

4.1

, , ( = ). , ,

, . . ( = ).

, ( ), .

4.3

, , .

- . .

:

=2

:

- -


23/52

23

- .

,

( = ), :

=

:

=

2

-

, :

=

2

- :

= =2

:

2

=

2 (

) S , :

=

.


24/52

4.2

( ). :

= =

, ( ), .

4.4

=

:

=

( )

=

= 2 , = :

= =

=

. ,

24

,

,


25/52

25

. ( ) , , .

,

. ( ) = + 0,5 .

, = + 2 3 [ ]. .. , , .

4.3

4.5 .

4.5

d :


26/52

26

2= ( )

:

= 2 ( )

.

= 2 ( )

= , :

=

= 2 ( )

= ; = + :

= 2 ( )

:

=2

: = + :

= 2 + ( + 2 )

, [ ] :

= + 2 ; = 360

;


27/52

27

4.4

, .

.

. , , .

Suhanov :

= (0.65 0.75)

= 150 :

= 0.75

:

I. = (0.65 0.75) ;II. (

Q)III. . :

=360

.IV.

.

: ,

.


28/52

28

4.5

:

= ; = =

, :

=360

:

=360

:

= +360

4.6

:

=

:

=2

+722

246 2

=4 2

-


29/52

4.6

= .

,

DD,

=

4.7

( e ,

,

,

:

3604 2

+2

:

=90

+2

)

: =

= 35 45

, ..

29

.

= .

.


30/52

30

, ( - = 360 ). . .

4.7 .


31/52

31

5. CF TURBO

-

. . , . , .

:

- ,

, - - - ,

- 4 ,

-

- 3 - , Word

- CAD CFD ,

, .

, . SI US . SI .


32/52

32

CFTURBO . .

. :

-

-

-

- -

-

-

-

-

-

-

-

-

-

-


33/52

33

-

- Stepanoff

.

, , . 5.2 5.3 , .

. 5.2


34/52

34

. 5.3

( , ) CFTURBO 5.


35/52

35

. 5.4

. 5.5

. 5.6

, . , CFTURBO 5.


36/52

36

. , , .. . s, 0, 1, 2 3 .

. 5.7

Main Dimensions. .


37/52

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. 5.8 CF Turbo

Q, H, n . , , . , CF Turbo .


38/52

38

. 5.9 , CF Turbo

, . , , .

. 5.10 (Leading) (Trailing)


39/52

39

. , . , .

CF Turbo, CFD

.

. 5.11 , ,

, , . , , , D2 b2 . .


40/52

40

. 5.12

, .

. 5.13 CF Turbo


41/52

41

, 3D . 3D CF TURBO.

. 5.14 3D

. 5.15 3D


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42

6.

3. () :

- H=40 m ;- Q= 290 m3/h ;- n=1850 vrt/min ;- , =1000 kg/m3 ;

:

= 3.13 = 102,97

:

= = 0,082 /

. (, , ) :

, = (4 4,5)10 = 150,4 [ ]

= 1 1

( , 0.172)= 0,896 =

1

1 + 0,68 = 0,97 = (0.96 0.98)

1

1 +

= 0,9

, :

=1000

= 41,136 [ ]

, :

= (1.1 1.2) = 47,3 [ ]

, :

=30

= 193,73 = 10 = 212,45 [ ] =16

= 0,03 [ ]

, :


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43

=4

= 0,151 [ ]

0 , :

= (0.06 0.08) = 4,583

D1 D0 :

= (0.58 0.72) = 0.098 [ ]

:

= = 0,06 [ ]

3.2 . ,

. , :

= 0.97 = 0.122 =7200

= 0.295 [ ] =60

= 3.486 =

= 0.025 [ ]

:

= = 5,729 = = 3.904

:

= =

, , . , 1l=18

o 2l=23o.

, :

=2 2

+ = 24,97 =60

= 0.258 [ ]


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44

7.

CF Turbo

2 .

, , , .

, :

- H=40 m ;- Q= 290 m3/h ;

- n=1850 vrt/min ;- , =1000 kg/m3 ;

ns P (kW) Pel(kW) d (m) D0 (m) D2(m) b2 (m) c1m m/s c2m m/s 102.97 0.78 41.136 47.3 0.03 0.151 0.295 0.025 4.58 3.48CF Turbo 103.29 0.87 31.6 36.5 0.031 0.170 0.300 0.029 3.8 3.0

(%) 0.3 11 30 29 3 12 2 16 20 16


45/52

45

8.

, ( ) ,

, .

, , , , . .8.1 : 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 9

. 8.1

:

- : - -

-


46/52

46

- , , . .

- (u-u) (r-r). :

=

+

2+ + + + [ ]

:

=

+

2+ + + [ ]

, .. .

, :

, = 0, :

=

+ + [ ]

,

. , ,

, , .

= =2

- ;

- ;

- ;

:

=

+ + [ ]


47/52

47

, , . , , , .

, . , .

, , , .

8.1

, . .. , . , . , ,

, , , , .

, , , , () (Hp, Qp).

: . ,

, . . 20-30% . , , , .

(Hp).


48/52

48

, .

, . , ,

.

8.2

,

. . , (1 2) (H-Q)I (H-Q)II. , , .

. ,

, . " " H-Q () (). , H(Q) . (H-Q)I+II ( ) Hp(Q) . Q I+QII, .. Qp, HI = HII, Hp. (H-Q)I (H-Q)II I A II Q

. BI BII.


49/52

49

. 8.2 2

8.3

, . , .

, . , . . 26 (H-Q)I (H-Q)II. ho.

. H(Q) I H(Q)II H(Q)I+II.


50/52

50

. 8.3 2

II , . ,

.

. 8.4 (2H-Q) . (2H-Q) H(Q). ho Hp = k

. Q2. ( ) Hp. QA H1=HA/2 ( 1). , , QB HB ( ), H=HB/2 QB. , o .

, . .


51/52

51

. .

, . ,

, .

. , . , .

. 8.4 2

H(Q) I+II Hp(Q) , : Hp =H + H Qp. H(Q)I H(Q)II

: I(HI,Q) AII(HIIQ). , A '1 A'2.


52/52

9.

, ,

, , . , . . , . .

, . , , . CF Turbo. , . , . , , 30%. . ,

, ,

.

10. :

1. .2. - .3. CF TurboSoftware Manual 5.0

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Pumps calculation