500 m³/min High-quality Advanced Centrifugal Vacuum Pump Equipment
Description
GoodSeaA high-speed variable frequency centrifugal vacuum pump
adopts aerodynamic technology and aviation-grade processing and
manufacturing process, it is designed for the papermaking and
chemical industries. The impeller adopts aviation-grade
high-strength alloy material, which can be used 300,000 hours
(about 35 years) without maintenance. It’s drive system uses
high-efficiency and energy-saving motors, the quality is stable and
reliable, It is suitable for long-term stable operation in harsh
environments such as high temperature and high humidity.
According to the characteristics of papermaking industry, the
impeller of the centrifugal vacuum pump is specially made of
aviation-grade high temperature-resistant and high strength alloy
material, abrasion resistance, corrosion resistance, white water
droplets resistance and pulp fiber impact resistance, able to provide 30 years of service, impeller maintenance free.
In the process of design and R&D, special attention is paid to
the high performance, high reliability and high cost performance of
the product.
Compared with the advanced turbine vacuum pump abroad, the
transformation cost can be saved by more than 50% for machines of
the same power.
The advantages of centrifugal vacuum pump compared with water ring
pump
| Item | Disadvantage of Water ring pump | Advantage of Centrifugal vacuum pump |
Endurability& Maintenance Cost | There is cavitation problem in the blade as the blade is always in direct contact with white water, white water impurities cause equipment scaling, reduce suction
capacity, and increase energy consumption, white water impurities
are also easy to cause rotor and pump body lock, bearing, shaft
head wear and other problems which lead to high failure rate of
equipment, frequent maintenance, high maintenance cost and short
service life | High-tech product with aviation-grade material and great operational reliability, average service life can be 10-20 years. |
| Performance | The performance of water ring vacuum pump decreases with the service
life increasing. The impeller wear increases leakage, decreases
vacuum and reduces efficiency. | Centrifugal vacuum pump works without water and achieve suction
sealing by itself, therefore, the water and the electricity in the
water supply system are both saved. |
| Applicable Situation | Low flow rate, high vacuum degree(above -70kPa) | High flow rate,stable vacuum degree(-30 ~ -75kPa) |
Aeroengnine Compressor-Design and manufacture method
High-Speed Centrifugal Compressor Design Case
- Design Tools:
Based on“AxStream-AutoGrid-Numeca-Isight”design platform
Computed Field Grids(with Vaneless Diffuser) Numerical Analysis
Results -Static Pressure
Aviation Engine Blade Manufacturing Process
- The machining precision and manufacturing level of impeller blades
are important factors that affect engine performance, safety and
life.
- There are strict requirements for the manufacturing accuracy of
blades in the aviation industry, which must have precise size,
accurate shape and strict surface integrity.
Commissioning & Testing
High Speed Dynamic Balance Test
Gradually balancing from low speed to high speed.
The equilibrium speed is as close as possible to the critical
speed.
Balance at rated working speed to ensure balance accuracy.
Rotor Test
The wheel rotation fracture test is carried out without damage in
the ground with 122% maximum rotational speed.
Working on the engine at 115% maximum allowable steady-state
operating speed for 5 minutes without cracking and the size is
within the allowable range.
On the engine, exceed the maximum allowable average steady-state
temperature of 42℃, work for 5 minutes without cracking, and the
size is within the allowable range.
Vibration Test
20% margin between critical speed and maximum working speed.
During the test of the components and the whole machine, there is
no adverse reaction to the vibration in the working speed range.
Performance, Characteristic Test
Performance tests under design conditions.
Characteristic tests under non-design conditions.
Process the test data to determine whether the performance of the
component is up to standard and draw a characteristic curve.
Impeller Strength Check
Finite Element Analysis & Grids FEA Stress Displacement Result
Testing
Final Impeller Shape Compressor Commissioning
Parameters of High-Speed VF Centrifugal Vacuum Pump
MODEL | Motor Power KW | Shaft Power KW | Air Flow m3/min | Vacuum Degree Kpa |
GDV110 | 110 | 95.3 | 120 | -50 |
GDV160 | 160 | 139.1 | 175 | -50 |
GDV200 | 200 | 174.7 | 220 | -50 |
GDV250 | 250 | 217.4 | 275 | -50 |
GDV280 | 280 | 246.1 | 310 | -50 |
GDV315 | 315 | 273.9 | 345 | -50 |
GDV355 | 355 | 309.6 | 390 | -50 |
GDV400 | 400 | 349.3 | 440 | -50 |
GDV450 | 450 | 396.9 | 500 | -50 |
GDV500 | 500 | 436.7 | 550 | -50 |
GDV560 | 560 | 484.3 | 610 | -50 |
Remarks 1.Above Design Parameters are obtained based on below conditions: Suction Medium: Air, Relative Humidity: 65%, Suction Air
Temperature: 35℃, Discharge Pressure: 101.3kPaA 2.For special working conditions or vacuum condition changes, the
vacuum pump can be designed according to actual demands. Please refer to pre-sale service. |
