Method for starting diesel generator at low temperature

The generator set manufacturers today share the way that diesel generators start at low temperatures:

1. Battery quality selection To ensure the low temperature start-up quality of the battery, if necessary, the battery should be kept warm to ensure normal charging under low temperature conditions and sufficient current output to ensure the starting system power.

2, choose good low temperature performance of fuel and oil Good oil low temperature viscosity, lubrication between the friction surface is good, starting resistance is small, is conducive to engine start.

3, the use of low temperature starting liquid Low temperature starting liquid ignition point is low, the engine speed is lower, that is, the compressed air temperature and pressure is low under the circumstances can quickly ignite, so as to ignite the fuel in the combustion chamber to achieve engine start.

4. Heating and Cooling Medium The above three methods can only ensure that the diesel generator starts normally when the ambient temperature is higher than -30 degrees, and the engine is started when the temperature is lower than -30 degrees.

5. Heating device is installed on the air intake pipe After the heating device is installed on the air intake pipe, the resistance wire installed in the air intake pipe is heated by using electric energy inside or outside the machine, thereby increasing the intake air temperature and ensuring the start of the engine.

1. Naipu L series lower abrasive Slurry Pump description

 L series Rugged Heavy Duty Slurry Pump for medium to lower heads.It incorporates the same design points of the NP-AH(R) and plus higher efficiency impellers at an attractive initial cost.Designed for rugged duties while offering higher efficiencies, the NP-L series is a combination of the proven NP-AH(R) unique features.The pump is available with interchangeable liner options including both metal and various grades of elastomer depending on the application.


Typical Applications---

Chemical Process
Heavy Minerals
Plant Water Supply
Thickener Overflow
Paper and Pulp

Slag Granulation

2.L series lower abrasive slurry pump construction drawing

L construction component

L lower abrasive slurry pump construction 02

L lower abrasive slurry pump construction 03

3. L Lower Abrasive Slurry Pump select chart

NP-L lower abrasive slurry pump select chart


4. L Lower abrasive slurry pump performance parameters


Type

Allowable Mating Max. Power(Kw)

Clear Water Performance

Impeller

Capacity/Q m³/hr

Head/m

Speed/rpm

Max Efficiency/%

NPSH/m

Nos of Vane

Impeller Diameter/mm

20A--NP-L

7.5

2.34-10.8

6--37

1400--3000

30

 

4

152.4

50B-NP-L

15

16.2--76

9--44

1400--2800

55

3.5--8

5

190

75C-NP-L

30

18-151

4--45

900--2400

57

3--6

4

229

100D-NP-L

60

50-252

7-46

800--1800

60

2--3.5

4

305

150E-NP-L

120

115--486

 12-51.5

800--1500

65

2--6

4

381

200E-NP-L

120

234--910

9.5--40

600--1100

64

3-6

4

457

250F-NP-L

120

396--1425

8--30

500--800

77

2--10

5

550

300S-NP-L

560

468--2538

8--60

400--950

79

2-10

5

653

350S-NP-L

560

650--2800

10--59

400--840

81

3--10

5

736

400ST-NP-L

560

720--3312

7--51

300--700

80

2--10

5

825

450ST-NP-L

560

1008--4356

9--48

300--600

80

2--9

5

 933

550TU-NP-L

1200

1980-7920

10-50

250-475

86

4-10

5

1213



L Lower Abrasive Slurry Pump

Lower Duty Slurry Pump,AH Mining Pump,L Lower Abrasive Slurry Pump

Shijiazhuang Naipu Pump Co., Ltd. , http://www.naipu-pump.com