Several types of vacuum pump principle and characteristics of sc -

vacuum pump is a kind of can make the gas continues to breathe in and out, and then do transfer gas purpose, according to its work principle can be divided into two categories: varactor vacuum pump, the angular momentum transfer pump.

a, transfiguration vacuum pump

use the pump cavity capacity change regularity for breathing and exhaust pipe the whole process of a vacuum pump. With its internal disc, piston rod, the rotor's fitness motion vector material and can be divided into two categories:

1, reciprocating vacuum pump

reciprocating vacuum pump is the use of the pump cavity piston rod, a single repeated exercise the diaphragm. Gas mouth have this product in uniform circular motion of eccentric motor, pump inside telescopic fitness sport, the diaphragm will narrow gas breathed in and out side by side, which is called piston pump body or pneumatic diaphragm pump, pump are so principle of my factory production and manufacturing work. The features of this series pump is: see more gasoline pump, no environmental pollution, volume miniaturization, selects the small and medium-sized brushless dc motor.

because of pneumatic diaphragm pumps and reciprocating piston pump body described features, this series of vacuum pump is widely used in medical equipment, analyzer, monitor etc, in order to transfer can not be environmental pollution substances.

2。 Rotation type vacuum pump

this is to use the pump cavity rotor rotational fitness exercise, according to the method such as transfiguration maintain sucked into the whole process of gas out side by side. Rotating disc type vacuum pump, the more common in industrial production has the following series of products: spiral built-in vacuum pump: 2 ( Or above) Rotary vane in the rotor tub drag and in touch with motor stator inner chamber, the capacity of pump cavity can be divided into several variability a turn the variable capacity pump, general rotary vane and the pump cavity used cooking oil for sealing the gap in the middle. Rotary vane pump vacuum to limit value is extremely high, as the other high vacuum pumps or extremely high vacuum pump in the front of the pump, but it is not suitable for extracting with the reducing of the metal material corrosion, the pump will change with dust particles and their chemical gases.

liquid ring vacuum pump: contains many leaves of rotor shaft installed in the pump body. When it turns, the fluid to the pump body and produce with the liquid ring pump body same boat, liquid ring with cycle time change the rotation of the rotor leaves the capacity varactor vacuum pump, when the working fluid in water, and is called water ring vacuum pump.

principle of water ring vacuum pumps

ROM time vacuum pump: evolved to roots blower, pump efficiency is big, the rotor without RunHua, allow is pumped with dust and water vapor in the gas, but no in the roots vacuum pump is a kind of miniature vacuum pump, general compression ratio is low ( The exhaust pipe of the pump working pressure and the ratio of the inlet pressure is called compression ratio) , so the gas in the pump cavity has not been narrowed, imports caused by air pressure is not big, the outlet is pressure is low.

roots vacuum pump principle

: extruder screw vacuum pump by using a pair of extruder screw, with a step in the pump body breathing caused by high speed rotating in the opposite direction and claw type vacuum pump exhaust effect of the pump. Lumen and extruder screw rotor surface anticorrosion coating, can be integrated into the extreme working conditions, no fuel consumption, gas inside the pump is narrow, suitable for extraction may non-condensable gas, but the cost increase, rely on imports, is to extract high air oxidation, inflammable, explosive gas.

screw vacuum pump principle

the pump sealing method of this series of products is much choose skeleton seal, sealing ring seal, mechanical seal, etc. , belong to large and medium-sized pumps, part of the material will change with chemical and oil pump and based on selected species suitable pump application scenarios.

2, momentum transfer pump

this type of pump principle is through the leaves of high speed or high speed water jet, the angular momentum transmitted to gas or gas molecular structure, make the gas continually from the pump channel transmission to the inward and outward. Turbo molecular pump: using the high speed centrifugal impeller will be sent to the angular momentum of the gas molecular structure, make the gas on liquidity and vacuum of vacuum pump. This type pump standard impact resistance, no gas storage and gas adsorption effect, no environmental pollution gas, vacuum value is extremely high, how to thermonuclear reaction equipment, heavy particle accelerator, and advanced electronic components manufacturing, etc.