Product Info


Brand: Tovac
Type:
Gas cooled roots vacuum pump
Serier:
ZJQ
Summary:
The air cooled roots vacuum pump is a type of Roots vacuum pump which allows continuous operation without overheating under high pressure differential. It also has the advantages of high speed and small volume of ordinary roots vacuum pump. Its work and cash depend on the mechanical strength of the pump itself.


Tabbed Content

First, product overview 

The air cooled roots vacuum pump is a type of Roots vacuum pump which allows continuous operation without overheating under high pressure differential. It also has the advantages of high speed and small volume of ordinary roots vacuum pump. Its work and cash depend on the mechanical strength of the pump itself.

The air cooled roots vacuum pump adopts a three blade rotor profile with large volume utilization factor and smaller volume. With proper motor and condenser, it can start at any pressure and operate at any differential pressure. The air cooled roots vacuum pump can be used separately and also can be used as a unit. In some cases, when it is in the intermediate stage of the unit, the air cooled roots vacuum pump relies on the external cooler of the pump to achieve the heat balance. If the unit is used as the last stage or alone, it can rely on air cooling without condensers.

The pump and unit can reach various limit pressure and working pressure. In the following cases, the gas cooled roots vacuum pump and the unit can be selected: 1, the load is very large; 2, the short pumping time is required; 3, the low vacuum to high vacuum need large pumping speed; 4, the need to avoid ordinary pumping medium as a medium.

The pump and unit can be widely used in vacuum smelting, vacuum drying, vacuum impregnation, vacuum distillation, vacuum degassing, aeronautical simulation experiment, gas transmission, vacuum suction, power plant dust absorption and other vacuum operations.

 

Two, specification and model

Model

ZJQ-300

ZJQ-600

ZJQ-1200

ZJQ-2500

ZJQ-5000

Pumping rate (L/S)

300

600

1200

2500

5000

Extreme pressure (Pa)

13000

Power  (KW)

37

75

132

250

450

Synchronous speed

1500

Caliber
(mm)

Inhalation

100

200

250

300

350

Discharge

80

200

200

200

250

Oil quantity (L)

10

12

15

15

20

Seal type

Gear end

Lip seal

back-end

Lip seal

Shaft extension

Skeleton oil seal

Weight Kg (without motor)

980

1450

2200

3000

5200

Note: 1, use 100# vacuum oil; 2, the actual use should be based on the maximum differential pressure with the power of the motor.

Three. The principle of work

The air cooled roots pump is sucked up vertically and drained vertically. At the two ends of the pump, the cooling air inlet is provided, cooling air is provided to the pump or cooled by the cooler.

When the air cooling pump is running, the rotor is driven by two synchronous gears, and the two rotors are rotated in the opposite direction in the pump, and the upper air intake, the side anti cold air and the lower end exhaust process are constantly formed. The rotor is subjected to dynamic balancing test to ensure smooth operation. The gearbox and lubricating oil are completely separated from the working chamber to ensure that the working chamber is free of oil.

2, pump lubrication

The bearing and gear are in the gear box, and the lubricating oil is lubricated to the bearings and gears by the oil throwing plate. The lubricating oil level is suitable for reaching the middle part of the oil level mirror. Too much temperature will cause the oil tank to be too high. If too little, the lubricating oil will fail and the life of the equipment will be shortened. The type of lubricating oil should be changed according to the temperature of the external environment.

 

Four. Technical specifications of common units

Type of unit

Model

Primary pump

Two     stage pump

Three

stage pump

Pumping rate (L/S)

Limit pressure (Pa)

Total power (KW)

Gas Cooled roots vacuum

unit

JZZJQ1200-2

ZJQ1200

ZJQ600

 

1200

3000

110

JZZJQ1800-3

ZJQ1800

ZJQ600

 

1800

3000

127

JZZJQ2500-2

ZJQ2500

ZJQ1200

 

2500

3000

220

JZZJQ3750-3

ZJQ3750

ZJQ1200

 

3750

100

250

JZZJQ1800-3.2

ZJQ1800

ZJQ600

ZJQ300

1800

100

90

JZZJQ2500-2.2

ZJQ2500

ZJQ1200

ZJQ600

2500

100

175

JZZJQ3750-2.2

ZJQ3750

ZJQ1200

ZJQ600

3750

100

195

 

 

Type of unit

Model

Primary pump

Two     stage pump

Three

stage pump

Pumping rate (L/S)

Limit pressure (Pa)

Total power (KW)

Gas cooled roots screw vacuum unit

JZJLG1200-2.2

ZJP1200

ZJQ600

LG200-4

1200

1

51.5

JZJLG1800-3.3

ZJ1800

ZJQ600

LG200-4

1800

3

62.5

JZJLG2500-2.2

ZJ2500

ZJQ1200

LG200-4

2500

3

96

JZJLG3750-3.3

ZJ3750

ZJQ1200

LG200-4

3750

3

119

 

Type of unit

Model

Primary pump

Two     stage pump

Three

stage pump

Pumping rate (L/S)

Limit pressure (Pa)

Total power (KW)

Gas cooled roots reciprocating vacuum unit

JZJWLW1200-2.2

ZJP1200

ZJQ600

WLW200

1200

50

51.5

JZJWLW1800-3.3

ZJ1800

ZJQ600

WLW200

1800

50

62.5

JZJWLW2500-2.2

ZJ2500

ZJQ1200

WLW300

2500

50

97

JZJWLW3750-  3.3

ZJ3750

ZJQ1200

WLW300

3750

50

107