This standard specifies the runner series of small and medium-sized axial-flow and Francis turbines. This standard applies to axial-flow and Francis turbines with a unit capacity of 10MW and below. This standard applies to turbines operating in clear water or water with a small amount of sand. JB/T 6310-1992 Series of runners for small and medium-sized axial-flow and Francis turbines JB/T6310-1992 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Runner Series of Small and Medium-sized Axial-flow and Francis Turbines 1 Subject Content and Scope of Application
This standard specifies the runner series of small and medium-sized axial-flow and Francis turbines. This standard applies to axial-flow and Francis turbines with a unit capacity of 10MW and below. This standard applies to turbines operating in clear water or water with a small amount of sand. 2 Runner Series Spectrum Parameters
JB/T6310-1992
Tables 1 and 2 specify the runner parameter ranges of small and medium-sized axial-flow and Francis turbines. The main parameters of the runners included in the spectrum are listed in Tables 3, 4 and 5. The performance parameters of all runners included in the spectrum should comply with the parameter ranges specified in Tables 1 and 2. Table 1
Spectrum of small and medium-sized axial flow runners Parameter range Applicable head range Guide vane relative height
Permeable head Vanadium
70~105
90~125
110~150
135~200
180~250
230~320
300~400
0.34/0.38|| tt||0.34/0.38
0.35/0.40
0.40/0.45
0.45/0.50
Number of blades
Optimal working principle
Unit speed n
155~170
-142~154
130~140
122~132
115~1 25
Unit flow Qi
0.95~1.15
0.85~1.05
Specific speed force,
660~760
580~670
500~570
440~500
400~450
Small and medium-sized mixed flow runner type spectrum parameter range guide vane relative height
0.14 or 0.16
0.12 or 0.14
0.1 or 0.12
Approved by the Ministry of Machinery and Electronics Industry on 1992-06-264
Unit speed\
Unit flow rate Q:
1.15~1.25
0.18~0.22
Specific speed\,bzxz.net
270~310
250~29 0
230~270
210~250
195~235
170~210
140~180
120150
95~120
75~100
Unit flow Q
1.35~1.55
Restricted working conditions
Unit flow Q,|| tt | 24
0.12~0.17
0.11~0. 14
0.10~0.12
0.08~0.11
0.06~0.09
0.045~0.065
0.04~0.055
0.035~0.045
0.032~0.04
19 93-0101 Implementation
Recommended use
Use water head||tt ||Wheel model
ZZ560a
26--42Z450/D32
Wheel blade angle
Model rotation
blade phase
Wheel diameter
to height
Unit speed n,
Optimal working conditions
recommended to use
70~105
Unit flow Q:
Cavitation coefficient. y
Wheel-to-wheel ratio
0.292/0.333
0.33/0.38
0.35/0.40
0.40/0.44
0.45/0.50
JB/T6310-1992
Main parameters of axial flow impeller
Number of blades
Optimum working conditions
Unit speed Unit flow
Model impeller
Relative guide vane
Impeller type No.
HL260/A244
HL260/D74
H.240/041
90~125
HL220/A153
HL180/A194
110~150
HL180/D06A
13 5~20d
HL160/D46
180~250
230~320
300~4 00
HL90/D54
HL90/D54
ZD760 runner main parameters
Main parameters of mixed flow runner
Unit speed
Unit flow
Specific speed
Specific speed
Limited working conditions
Unit flow
Unit flow
HL260 runner can still be retained, and the transition will be made after the development of a new runner for the 20-45m head section. The HL100 runner can still be retained, After the new runner of 230～320m head section is developed, the transition will be carried out. %
Cavitation coefficient
See Table 4
Cavitation coefficient
Runner diameter size series
JB/T6310-1992
The runner diameter size series is specified as: 25, 30, 35, 42, (40), 50, 60, 71, 84 (80), 100, 120, 140, 160, 180, 200, 225, 250, 275, 300, 330cm. 4 Representation of new runner model
The new runner model consists of two parts. The first part is the turbine type and runner specific speed code. The second part is the runner number of the runner development unit.
For example: HL220/A153.
Additional Notes:
This standard was proposed and managed by Tianjin Electric Drive Design Institute of the Ministry of Machinery and Electronics Industry. This standard is under the responsibility of Tianjin Electric Drive Design Institute. Harbin Large Electric Motor Research Institute, Harbin Electric Motor Factory, Dongfang Electric Motor Factory, Tianjin Power Generation Equipment Factory, Hangzhou Power Generation Equipment Factory, Chongqing Turbine Factory and other units participated in the drafting.
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