Piston vacuum pump structure

What is a piston vacuum pump:

The piston vacuum pump is one of the vacuum equipment to remove the general gas or contain a small amount of condensable vapor. It is used in vacuum smelting, vacuum drying, vacuum impregnation and other vacuum operations. It can be used alone or as a front-stage pump of other high vacuum pumps, but it is not used for pumping from one container to another as a conveying pump. When exorbitant, explosive, corrosive to black metal, chemical reaction to vacuum pump oil, water, and dust are added, the equipment should be added.

 

The structure and working principle of the piston vacuum pump:

The shape and structure of various vacuum pumps of piston vacuum pumps are basically the same. The pump is driven by a motor through a triangular belt to the pump rotor. The motor is fixed on the pump body with the motor plate.

piston vacuum pump is composed of pump body and eccentrically rotating parts of the sliding valve, semi-circular sliding valve guide rail, exhaust valve, shaft, etc. Figure 1 is the working principle diagram.

piston vacuum pump

There is a slide valve sleeve in the piston vacuum pump. The eccentric wheel is fitted with an eccentric wheel. The eccentric wheel is fixed on the shaft, and the slide valve plate is mounted on the slide valve sleeve. It can slide up and down in the semi-circular slide guide rail and swing right and left, so the pump body is separated into the A and B two rooms by the slide valve and the slide valve plate. During the operation of the pump, the volume of A and B two chambers change periodically, thus completing the inspiratory and exhausting process.

 

Performance parameter table of piston vacuum pump:

H Series technical data(50hz) :

Model H-70 H-150 H-180 H-200 H-230 H-300
Pumping speed (L/S) 70 150 180 200 230 300
Ultimate pressure (Pa) 1 1 1 1 1 1
Pump rotary speed (rpm) 500 500 380 410 450 450
Suitable motor Power (KW) 5.5 15 15 15 18.5 22
Rotary speed(rpm) 1440 1440 1460 1460 1470 1470
Model Y132S-4 Y132M-4 Y160L-4 Y160L-4 Y180M-4 Y180L-4
Max. inlet pressure (Pa) 1.3X104
Max. Vapor Productivity(kg/hr.) About 8.4
Cooling waterconsumption (kg/h) 150 200 450 450 450 700
Lubricated oil Model 1# vacuum pump oil
Capacity (kg) 18 40 45 45 45 63
Dimension Inlet(mm) 80 100 160 160 160 160
Outlet(mm) 50 80 100 100 100 100
Length x width x height (mm) 650 X 630 X 1200 1010 X 680 X 1356 1140 X 940 X 1270 1140 X 940 X 1270 1140 X 940 X 1325 1140 X 1160 X 1325
Total weight (kg) 525 970 1155 1155 1155 1525
Model H-150G H-150F H-200F H-300F
Pumping speed (L/S) 150 150 200 300
Ultimate pressure (Pa) 1 1 1 1
Pump rotary speed (rpm) 500 450 410 450
Suitable motor Power (KW) 7.5 11 15 22
Rotary speed(rpm) 1440 1460 1460 1470
Model Y132M-4 Y160M-4 Y160L-4 Y180L-4
Max. inlet pressure (Pa) 1.3X104
Max. Vapor Productivity (kg/hr.) About 8.4
Cooling water consumption (kg/h) 200 200 450 700
Lubricated oil Model 1# vacuum pump oil
Capacity (kg) 40 35 55 80
Dimension Inlet(mm) 100 100 160 160
Outlet(mm) 80 100 100 100
Length x width x height (mm) 1010 X 680 X 1356 1305 X 825 X 1350 1300 X 925 X 1450 1300 X 1150 X 1465
Total weight (kg) 970 905 1255 1650

Use of piston vacuum pump:

Widely used in aerospace, aviation, atomic, petroleum, chemical, pharmaceutical, electrical, ceramics, smelting, new materials, vacuum heat treatment, vacuum coating and other industries.

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