英国GRIMM格林进口罗茨真空泵 UK GRIMM Imported roots vacuum pump
抽 气 量：30-1200L/s
UK GRIMM Imported roots vacuum pump summary:
Imported roots vacuum pump, also known as mechanical increase pump, is a kind of displacement type dry vacuum pump。 The pump is mainly composed of a pair of synchronous high-speed rotating 8 - type rotors and 2。5 round pump cavities。 The principle is similar to that of Roots blowers。 It can be used as an additional pump, but it can not be directly discharged into the atmosphere by itself。 It must be used in tandem with the front pump。 In front of the inlet of the front pump, the roots vacuum pump is connected in series to form a unit, which can improve the vacuum degree of the front stage pump, and greatly increase the pumping speed in the effective working range。 The limit pressure of the roots vacuum pump is determined by the front pump。 The data in the table is the lowest limit pressure of the screw vacuum pump。 Roots pump is widely used in vacuum casting, vacuum melting, vacuum degassing, vacuum coating industry and chemical and pharmaceutical industry vacuum distillation, vacuum drying, etc。。 The pump is insensitive to small amounts of dust。
Imported roots vacuum pump is a kind of equipment with high pumping speed and low cost in the high vacuum range of 50Torr-micron。 It can be combined with various vacuum pumps to form a vacuum unit。 All products are tested for dynamic balancing and leakage before leaving the factory。 Roots vacuum pump has been widely used in the global manufacturing market, such as: chemical, petrochemical, plastic, semiconductor, wood mixture, food processing, vacuum furnace and so on.
UK GRIMM Imported roots vacuum pump characteristic:
1. The rotor and pump body, side cover, rotor and rotor gap between each other, and therefore do not contact each other:
A。There is no friction between the moving parts of the pump and the pump body of the A, so the power consumption is small, the operation and maintenance cost is low, and the energy saving effect is remarkable。
B。Each moving part in the pump cavity does not need oil lubrication and sealing, so the backflow of the oil vapor is avoided, and the vacuum system is polluted。
C.Roots vacuum pump is not sensitive to a small amount of dust contained in the gas to be pumped.
2. The rotor has good geometric symmetry, smooth operation, small vibration, low noise, straight drive speed, small size, light weight.
3. The pump cavity roots vacuum pump with internal compression phenomenon does not occur as the other mechanical vacuum pump, so it does not need the exhaust valve, so when it pump before the water ring vacuum pump, pumping can contain large amounts of water vapor gas.
4。 Quick start, in a short time to reach the limit vacuum, pumping efficiency is higher。
5. Pump in a wide pressure range (1.3X103 ~ 1.3Pa), the pumping efficiency is high, can quickly exhaust gas suddenly released, to make up for the diffusion pump and seal mechanical pump in the defects of 1.3X103 ~ 1.3Pa low pumping efficiency.
6. Work reliable and durable: pump cavity friction pairs are good lubrication, bearing and pump separation, the pump shaft in the shaft seal is equipped with bushings, so the main shaft will not wear, sleeve wear can be turned back to continue to use. With vertical structure, belt tension and pump belt wheel gravity offset, bearing load smaller, longer life. The main parts of large tank structure, reasonable design, favorable for oil and gas separation and cooling, and the oil, the oil containing of debris in the well since the separation is more fruit, according to the working condition, but also can be configured with automatic filter bypass filter plug, and the oil circulation display device, so the pump can be long the service life is long, can work in harsh conditions.
7. Small size, light weight: design speed moderate, compact and reasonable structure, the pump cavity inside and outside the utilization rate reached the highest, concise appearance, small size.
UK GRIMM Imported roots vacuum pump working principle:
Imported roots vacuum pumps, in the pump cavity, there are two "8" shape of the rotor perpendicular to each other on a pair of parallel axis, by a transmission ratio of 1 of a pair of gear belt action synchronous reverse movement of each other. In the rotor, between the rotor and the pump shell wall to maintain a certain gap, you can achieve high speed operation. Since the roots pump is a vacuum pump without internal compression, the compression ratio is very low, so it needs the front pump. Roots pump limit vacuum depends on the pump itself structure and manufacturing accuracy, but also depends on the pre - pump limit vacuum. In order to increase the limit vacuum of the pump, the roots pump can be used in series.
The working principle of roots pump is similar to roots blower. As the rotor continues to rotate, the gas is pumped from the suction port to the space between the rotor and the pump housing Vo, and then discharged through the exhaust port. Since the Vo space is fully enclosed after inhalation, the gas in the pump cavity does not compress and expand. But when the top of the rotor turns off the edge of the exhaust and the Vo space and the exhaust side are figured out, the gas pressure at the exhaust side is higher, and a part of the gas flows back into space Vo, causing the gas pressure to suddenly increase. As the rotor continues to rotate, the gas is expelled from the pump.
UK GRIMM Imported roots vacuum pump technical parameter:
Gas output: 30-1200L/s
Limit vacuum: 5 * 10-2Pa
Caliber: Inlet diameter: 50-250mm
Outlet diameter: 40-200mm
UK GRIMM Imported roots vacuum pump scope of application:
Vacuum degassing vacuum smelting is widely used in vacuum metallurgy, vacuum treatment of molten steel level aspects of heat treatment, can also be used for chemical, food, medicine, motor manufacturing industry, in particular, when the pump before it adopts two-stage water ring pump, pumping with large amount of water vapor, therefore. It is also suitable for distillation, evaporation, freezing, drying and other production processes.......
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