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Efficient Belt Driven Petrochemical Screw Vacuum Pump Industrial dry screw vacuum pump

The dry screw vacuum pump is a rotor that uses a pair of parallel screws to make synchronous, high-speed and reverse rotation in the pump housing. The rotor and the inner wall of the pump body form a number of sealing spaces. During the rotation, the continuous transmission of gas is formed to achieve the purpose of suction and exhaust.

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  • Kaien

Product Description

The dry screw vacuum pump is a rotor that uses a pair of parallel screws to make synchronous, high-speed and reverse rotation in the pump housing. The rotor and the inner wall of the pump body form a number of sealing spaces. During the rotation, the continuous transmission of gas is formed to achieve the purpose of suction and exhaust.

LG20_chanpin001

Working principle of dry screw vacuum pump

The working principle of a dry screw vacuum pump is mainly based on the use of gear transmission to synchronize and rotate in the opposite direction without contact between the left and right screws for high-speed rotation. The pump casing and the spiral grooves of the propeller that mesh with each other are divided into multiple spaces, forming multiple stages. Gas is transmitted and moved in equal grooves without compression, and only the spiral structure at the end of the screw has a compression effect on the gas. The pressure gradient can be formed between each stage of the screw to disperse the pressure difference and improve the compression ratio. The clearance between each part and the pump speed have a significant impact on the performance of the pump. When designing the clearances between various parts of the screw, factors such as expansion, machining and assembly accuracy, and working environment should be considered. Dry screw vacuum pumps, like Roots vacuum pumps, do not have exhaust valves.


Technical parameter


Type
(Air cooled series)
Basic parameters
Pumping speed
(m3/h)
Presure limit(Pa) Power (kW) revolution (rpm) Inlet caliber
(mm)
outlet caliber (mm) Pump head weight
(kg)
noise dB(A) Overall dimension
(length*width*height)
(mm)
LG-10 10 ≤5 0.75 2730 KF16 KF16 30 ≤ 72 655x260x285
LG-20 20 ≤5 1.1 2840 KF25 KF25 55 ≤72 720x305x370
LG-50 50 ≤10 2.2 2850 KF40 KF40 90 ≤75 920x350x420
LG-70 70 ≤30 3 2850 KF40 KF40 110 ≤75 910x390x460
LG-90 90 ≤30 4 2870 KF50 KF50 125 ≤80 1000x410x495


chanpin_fengleng001

Water cooling Dry screw vacuum pump


Application Area

Can extract condensable gases containing a large amount of water vapor and a small amount of dust, and can also be used to extract corrosive gases, oil and gas, solvents, and other media for recovery.

yingyong001


Product highlights

Precision casting, durable, heat-resistant, corrosion-resistant, and with a long service life

LG20_liangdian_04

Stable performance and high efficiency. High quality special bearings, smooth operation, low vibration, and low noise, energy conservation

LG20_liangdian_07


Mechanical seal, leak proof. There is no medium in the working chamber, which can obtain a clean vacuum; Select between components No gap, can operate at high speed

LG20_liangdian_10

Dry oil-free, no lubrication required in the working chamber, no secondary pollution to the extracted medium, providing a clean vacuum without worrying about backflow pollution


LG20_liangdian_13

Factory Shooting

Workshop shooting, complete equipment, and rich production experience


LG20_gongchang002


LG20_gongchang001


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     Phone : +86-130-0288-6558
    E-mail : 18668923131@163.com
    Telephone:+86-0531-8750-3139
    Company headquarters2603-B, Building B1C, Qilu Gate, Greenland, Huaiyin District, Jinan City, Shandong Province
    Company production plant : No. 11111, Second Ring South Road, Jinan City, Shandong Province
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