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SZB Series Liquid Ring Vacuum Pump for Vacuum Degasser
1, Product overview:
SZB water ring vacuum pump is used to pump or compress air and
other non corrosive, water insoluble and solid particle free gases.
The maximum vacuum degree of non corrosive gases can reach 85%, so
as to form vacuum and pressure in closed containers. However, the
inhaled gas can be mixed with a small amount of liquid. It is
widely used in machinery, petrochemical, pharmaceutical, food,
sugar industry and electronic fields. Because the gas compression
is isothermal in the working process, it is not easy to cause
danger when compressing and pumping flammable and explosive gases,
so it is more widely used.
SZB water ring vacuum pump is a suspended water ring vacuum pump,
which can be used to pump air or other non corrosive, water
insoluble and solid particle free gases. The minimum suction
pressure is -0.086MPa. It is widely used in machinery, petroleum,
chemical, pharmaceutical, food and other industries and other
fields, especially suitable for large water pumps in temples.
2, Scope of application:
SZB water ring vacuum pump is widely used in machinery,
petrochemical, pharmaceutical, food, sugar industry and electronic
fields, especially for large water pumps.
3, Working principle:
SZB water ring vacuum pump realizes suction, compression and
exhaust by changing the volume of pump chamber, so it belongs to
variable volume vacuum pump. The impeller is eccentrically
installed in the pump body. When the impeller rotates, the water
entering the water ring pump body is thrown around by the impeller.
Due to the centrifugal force, the water forms a closed water ring
of equal thickness similar to the shape of the pump chamber. Water
ring The upper inner surface is just tangent to the impeller hub,
and the lower inner surface of the water ring is just in contact
with the top of the blade. At this time, a crescent shaped space is
formed between the impeller hub and the water ring, and this space
is divided into several small cavities equal to the number of
blades by the impeller. If the upper 0 ° of the impeller is taken
as the starting point, then when the impeller rotates 180 ° before,
the volume of the small chamber gradually increases, the pressure
continuously decreases, and it is connected with the suction port
on the suction and exhaust disks. When the pressure in the small
chamber space is lower than the pressure in the pumped container,
according to the principle of gas pressure balance, the pumped gas
is constantly pumped into the small chamber, which is in the
process of inspiration. When the suction is completed, it is
isolated from the suction port. From section 1-11 to section 1-1I1,
the volume of the small chamber is gradually decreasing, and the
pressure is constantly increasing. At this time, it is in the
process of compression. When the compressed gas reaches
Bleed the air early from the auxiliary exhaust valve when the
exhaust pressure is high. From section 1 to 1-1, the volume of the
small cavity connected with the exhaust port further reduces and
the pressure further increases. When the pressure of the gas is
greater than the exhaust pressure, the compressed gas is discharged
from the exhaust port. During the continuous operation of the pump,
the suction, compression and exhaust processes are carried out
continuously, so as to achieve the purpose of continuous air
extraction.
4,Technical parameter
5, Product features:
1. Simple structure, low manufacturing precision requirements, easy
processing.
2. Compact structure, high rotation rate of the pump, it can be
directly connected with the motor, and no reducer is required.
Therefore, with small structure size, large exhaust volume can be
obtained and the floor area is small.
3. Compressed gas is basically isothermal, that is, the temperature
change of compressed gas is very small.
4. Since there is no metal friction surface in the pump cavity,
there is no need to lubricate the pump, and the wear is very small.
The sealing between the rotating part and the fixed part can be
directly completed by the water seal.
5. The suction is uniform, the work is stable and reliable, the
operation is simple, and the maintenance is convenient.