1. The compressor structure is a symmetrical balanced type (D type), with inertial forces completely balanced, and the inertial moment is also fully balanced through counterweights, resulting in very smooth operation.
2. It uses variable frequency starting, with a small starting current (1.5 times), causing no impact on the power grid; during operation, through PLC logic calculations and adjustments, it provides real-time signals (4~20)mA to the variable frequency device based on changes in intake and exhaust pressure, and the inverter outputs the motor's real-time speed; during the variable speed operation of the compressor, the actual operating power is basically at 98% of the motor's rated power, achieving high power utilization and power factor, thus reaching the goal of energy saving.
3. To achieve the same gas volume, the variable frequency mother station compressor unit only needs to be equipped with 1/2-2/3 of the conventional compressor unit's motor power, reducing the station's electrical requirements (smaller transformer capacity), which can save about 150,000 yuan in equipment procurement costs for the station; at the same time, it can also save 100,000 yuan annually in reactive power electricity costs (this cost is incurred as soon as the transformer is connected to the grid, regardless of whether the compressor is running).
4. When filling a full tank truck with gas, the variable frequency mother station compressor has at least a 30.8% increase in filling efficiency compared to conventional compressors, with energy consumption reduced by at least 10%; all of this translates into economic benefits, potentially generating an additional income of about 1.7 million yuan annually.
5. The variable frequency mother station compressor unit can increase the gas supply volume by (30-50)% compared to conventional mother station compressor units for the same power, allowing for a reduction in the number of compressors needed under the same gas volume configuration, thus reducing land use and equipment procurement costs for the station.
6. The variable frequency mother station compressor unit can adapt to a wide range of intake pressure variations, eliminating the need for pressure regulating devices due to large pipeline pressure fluctuations, saving about 150,000 yuan in equipment procurement costs for the station.
7. With a smaller main motor power, the matching cooling system's power distribution is also smaller, saving about 60,000 yuan annually in auxiliary electricity costs; if it is a water cooling system, it can also save about 50,000 yuan in equipment costs for the station.
8. The crankcase and middle body are cast as one, greatly increasing rigidity, and are complemented by high-precision machining centers, with integrated processing of front and rear bearing holes and left and right slideway holes, significantly improving the concentricity of the shaft holes, the verticality of the slideways, and the precision of dimensional tolerances, reducing the leakage rate of conventional compressors from 39% to 1%. Thus, a 3000Nm³/h compressor will leak 33,600Nm³ less per year, helping to reduce the operating costs of gas stations and minimize environmental pollution.
9. The cylinder and packing use low oil lubrication, with the oil content of the compressed and purified gas being less than 100ppm, saving about 20,000 yuan annually in operating oil consumption.
10. The cylinder features a double-acting or reverse differential structure, making assembly and maintenance convenient; the number of easily worn parts is small, and during third and fourth stage compression, the piston rings and guide rings are fewer than those in conventional compressors, saving about 20,000 yuan annually in operating costs. The specifications and quantities are also reduced by about 1/3 compared to conventional compressors, and the number of oil injection points is also reduced by about 1/3.
11. The PLC provides full automatic control, with fault detection, alarm, and shutdown functions during unit operation.
1. The average gas supply of the variable frequency 200KW mother station unit is basically consistent with that of the conventional 250KW unit;
2. The average gas supply of the variable frequency 250KW mother station unit is far greater than that of the conventional 250KW unit;
3. The power utilization rate of the variable frequency 200KW mother station unit is higher than that of the conventional 250KW unit for a considerable period of time.
Technical Parameters
Product parameter table | ||||||||
Inlet pressure(Mpa) | 0.2~0.6 | 0.5~1.5 | 1.0~2.5 | 2.0~3.5 | 2.5~4.5 | 3.0~6.5 | 4.0~9.0 | |
Exhaust pressure(Mpa) | 25 | |||||||
Intake air temperature(C) | -20~45 | |||||||
Air supply temperature (C) | Water cooling:≤45;Mixed cooling:≤ambient temperature+10 | |||||||
Air supply volume (Nmh) | 1120~1935 | 1405~2830 | 1685~3225 | 2665~3910 | 2535~4040 | 3205~6370 | 3640~7680 | |
Motor power(kw) | 280 | 315 | 280 | 280 | 220 | 280 | 250 | |
Power consumption per cubic meter (kwh/Nm³) | 0.172~0.133 | 0.139~0.104 | 0.112~0.085 | 0.083~0.066 | 0.065~0.045 | 0.058~0.034 | 0.048~0.025 | |
Lubrication method | Cylinder and filler with less oil lubrication | |||||||
Vibration intensity | crankcase | ≤7 | ||||||
pipeline | ≤16 | |||||||
noise | Water cooling | ≤95 | ≤100 | ≤95 | ≤90 | ≤95 | ||
Mix cooling | ≤100 | ≤105 | ≤100 | ≤95 | ≤100 | |||
Overall imensions(mm) | 5000×3200×1800 5000×3200×2500 Water cooling:5000×3200×1800;Mixed cooling:5000×3200×2500 | |||||||
PLC | Siemens,Schneider | |||||||
High pressure valve | Imported items | |||||||
Standard configuration | Overall skid mounted | |||||||
Optional one | With sound reduction cover | |||||||
Optional option two | Integrated recovery system within the skid | |||||||
Note:The sample parameters are for reference only.Our company can carryout targeted design and manufacturing according to the actual working conditions of users.
