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HDP-C044
HAIDE
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Working principle of water ring vacuum pump
Water ring vacuum pump uses water or other liquids as the working medium, and forms a water ring in the pump chamber through the rotation of the impeller to achieve gas suction and discharge. Its working principle is as follows:
(1) Rotation of impeller and formation of water ring
The pump chamber of a water ring vacuum pump contains a certain amount of working fluid (usually water).
When the impeller rotates at high speed, the working fluid is thrown towards the pump chamber wall, forming a rotating water ring. A crescent shaped volume space is formed between the inner surface of the water ring and the impeller hub.
The shape and thickness of the water ring will change with the rotation of the impeller, thereby altering the size of the volume space.
(2) Gas inhalation and compression
During the rotation of the impeller, the volume space between the inner surface of the water ring and the impeller hub will periodically increase and decrease.
When the volume space increases, negative pressure is formed, and gas is sucked into the pump chamber through the inlet.
As the impeller continues to rotate, the volume space gradually decreases and the gas is compressed.
Finally, the gas is compressed to sufficient pressure and discharged through the exhaust port.
(3) Circulation of working fluid
The working fluid (water) circulates in the pump chamber, playing a role in sealing, cooling, and lubrication.
Due to the absorption of gas heat by the working fluid, it needs to be replaced or cooled regularly to maintain its temperature and performance.
| Working principle of rotary vane vacuum pump
Rotary vane vacuum pump is a single-stage or two-stage mechanical vacuum pump, whose working principle is based on the movement of the rotary vane in the pump chamber to achieve gas suction and discharge:
(1) Spiral motion and volume change
The pump chamber of the rotary vane vacuum pump is equipped with several rotary vanes, which are installed on the eccentric rotor.
When the rotor rotates, the rotor tightly adheres to the inner wall of the pump chamber under the action of centrifugal force and slides inside the pump chamber.
The rotary vane divides the pump chamber into several unequal volume spaces.
(2) Gas inhalation and compression
When the rotor rotates, the rotor sucks in the gas inside the pump chamber from the inlet.
As the rotor rotates, the volume space gradually decreases and the gas is compressed.
Finally, the gas is compressed to sufficient pressure and discharged through the exhaust port.
(3) Sealing and lubrication
Rotary vane vacuum pumps typically require oil for lubrication and sealing, hence they are also known as oil sealed vacuum pumps.
Oil forms an oil film in the pump chamber, preventing gas leakage and providing cooling and lubrication.
|Working principle of screw vacuum pump
Screw vacuum pump is a type of dry vacuum pump, whose working principle is based on the rotation of the screw rotor to achieve gas suction and discharge:
(1) The motion of screw rotor
The pump chamber of the screw vacuum pump is equipped with a pair of interlocking screw rotors.
When the rotor rotates, gas enters the pump chamber from the inlet and is captured by the threads of the screw rotor.
(2) Transportation and compression of gases
As the rotor rotates, gas is transported along the threads of the screw and gradually compressed.
Due to the engagement and rotation of the screw rotor, the gas is gradually compressed to a higher pressure.
Finally, the gas is discharged through the exhaust port.
(3) Oil free design
Screw vacuum pumps usually adopt oil-free design, which avoids oil pollution and is particularly suitable for occasions with high cleanliness requirements.
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Working principle of water ring vacuum pump
Water ring vacuum pump uses water or other liquids as the working medium, and forms a water ring in the pump chamber through the rotation of the impeller to achieve gas suction and discharge. Its working principle is as follows:
(1) Rotation of impeller and formation of water ring
The pump chamber of a water ring vacuum pump contains a certain amount of working fluid (usually water).
When the impeller rotates at high speed, the working fluid is thrown towards the pump chamber wall, forming a rotating water ring. A crescent shaped volume space is formed between the inner surface of the water ring and the impeller hub.
The shape and thickness of the water ring will change with the rotation of the impeller, thereby altering the size of the volume space.
(2) Gas inhalation and compression
During the rotation of the impeller, the volume space between the inner surface of the water ring and the impeller hub will periodically increase and decrease.
When the volume space increases, negative pressure is formed, and gas is sucked into the pump chamber through the inlet.
As the impeller continues to rotate, the volume space gradually decreases and the gas is compressed.
Finally, the gas is compressed to sufficient pressure and discharged through the exhaust port.
(3) Circulation of working fluid
The working fluid (water) circulates in the pump chamber, playing a role in sealing, cooling, and lubrication.
Due to the absorption of gas heat by the working fluid, it needs to be replaced or cooled regularly to maintain its temperature and performance.
| Working principle of rotary vane vacuum pump
Rotary vane vacuum pump is a single-stage or two-stage mechanical vacuum pump, whose working principle is based on the movement of the rotary vane in the pump chamber to achieve gas suction and discharge:
(1) Spiral motion and volume change
The pump chamber of the rotary vane vacuum pump is equipped with several rotary vanes, which are installed on the eccentric rotor.
When the rotor rotates, the rotor tightly adheres to the inner wall of the pump chamber under the action of centrifugal force and slides inside the pump chamber.
The rotary vane divides the pump chamber into several unequal volume spaces.
(2) Gas inhalation and compression
When the rotor rotates, the rotor sucks in the gas inside the pump chamber from the inlet.
As the rotor rotates, the volume space gradually decreases and the gas is compressed.
Finally, the gas is compressed to sufficient pressure and discharged through the exhaust port.
(3) Sealing and lubrication
Rotary vane vacuum pumps typically require oil for lubrication and sealing, hence they are also known as oil sealed vacuum pumps.
Oil forms an oil film in the pump chamber, preventing gas leakage and providing cooling and lubrication.
|Working principle of screw vacuum pump
Screw vacuum pump is a type of dry vacuum pump, whose working principle is based on the rotation of the screw rotor to achieve gas suction and discharge:
(1) The motion of screw rotor
The pump chamber of the screw vacuum pump is equipped with a pair of interlocking screw rotors.
When the rotor rotates, gas enters the pump chamber from the inlet and is captured by the threads of the screw rotor.
(2) Transportation and compression of gases
As the rotor rotates, gas is transported along the threads of the screw and gradually compressed.
Due to the engagement and rotation of the screw rotor, the gas is gradually compressed to a higher pressure.
Finally, the gas is discharged through the exhaust port.
(3) Oil free design
Screw vacuum pumps usually adopt oil-free design, which avoids oil pollution and is particularly suitable for occasions with high cleanliness requirements.
