According to your 6m & sup3;/min gas demand, combined with the general selection standards in the industrial field, the recommended configuration scheme is as follows:
1. foundation selection parameters
- rated flow: It is recommended to choose 7.5-9m & sup3;/min air compressor with displacement. The core considerations include:
- pipeline loss compensation: Reserve according to 10% margin to compensate for the pressure loss of long-distance transportation (>50 meters)
- equipment Aging Compensation: After 2 years of operation, the efficiency attenuation is about 5-8%, and the capacity margin needs to be reserved.
- Instantaneous peak response: Deal with instantaneous gas consumption surge such as equipment startup (usually 1.2-1.5 times the average value)
- working pressure:
- standard configuration: 0.8MPa(8bar), suitable for more than 90% of industrial scenarios
- special working conditions: if used for sandblasting, laser cutting and other high pressure requirements, 1.0-1.3MPa models need to be customized
2. Model Configuration Scheme
| Configuration Type | applicable Scenarios | core advantages | typical investment costs |
|---|
| single fixed type | stable gas consumption (fluctuation <± 15%) | low procurement costs and simple maintenance | ★★☆ |
| two-machine linkage type | large fluctuation of gas consumption (above ± 30%) | energy saving 20-35%, guarantee continuous gas supply | ★★★☆ |
| frequency conversion integrated | frequent fluctuation of gas consumption (e. g. automatic production line) | optimized for energy efficiency, pressure fluctuations <± 0.1bar | ★★★★ |
3. key technical parameters
- energy efficiency grade: Priority is given to GB 19153-2019 Class I energy efficiency model, which saves 15-20% energy than Class III energy efficiency.
- Cooling mode:
- air-cooled type: suitable for clean workshop with ambient temperature <40 ℃
- water cooling type: suitable for high temperature and high dust environment (such as metallurgy, cement industry)
- noise control: It is recommended to configure a mute cover to control the noise below 75dB(A) to meet the occupational health standards
4. special scene adaptation suggestions
- centralized gas supply for multiple equipment:
- configure intelligent pipe network system to realize linkage control of multiple devices
- add 3-5m & sup3; gas storage tank, balance gas peak and valley
- clean gas demand(e. g. electronics, food industry):
- five-stage filtration system with oil content <0.01 mg/m & sup3;
- add activated carbon adsorption device to remove odor and organic vapor
- extreme Environmental Applications(such as plateau and alpine region):
- customized enhanced cooling system to ensure wide temperature range operation from -20 ℃ to 50 ℃
- configure electric heating device to prevent condensation water from freezing
5. economy assessment
at 5-year life cycle cost:
- initial investment: single 7.5m & sup3;/min model about 8-120000 yuan
- operating costs:
- energy efficiency difference: the first-level energy efficiency model can save about 28000 kW · h per year compared with the third-level energy efficiency model.
- Maintenance cost: the annual maintenance cost of screw models is about 0.5-12000 yuan.
- investment payback period: Frequency conversion model about 2-3 years through energy saving to recover the cost difference
6. selection decision tree
- fluctuation of gas consumption <± 15% & rarr; single fixed type
- fluctuation of gas consumption> ± 30% & rarr; Two-machine linkage type
- frequent start-stop condition & rarr; frequency conversion integrated
- high cleanliness requirements & rarr; add post-processing system
- key Production Links & rarr; It is recommended to configure standby units
it is recommended to combine the specific process, simulate the gas curve through professional software, quantitatively evaluate the economy and reliability of different configurations, and finally determine the optimal scheme.
