China Mixed Gas Compressor - Reliable Suppliers & Factory Solutions for Syngas, Biogas, and Petrochemical Processes
Gas Mixture Diaphragm Compressor Advantages
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Zero Leakage Guarantee & Component IntegrityThe metal diaphragm completely isolates the process gas from the lubricating oil, achieving 100% oil-free operation and zero external leakage. This is crucial for preventing the accumulation of leaked flammable or explosive gas mixtures and for maintaining the specified component ratio of the mixture without oil contamination or air dilution, fundamentally eliminating safety risks caused by leakage.
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Excellent Material and Media AdaptabilityThe wetted parts of the diaphragm head (such as the diaphragm and cavity) can be custom-selected for materials based on the most corrosive or reactive components in the gas mixture, for example using 316L stainless steel, Hastelloy, etc. This flexibility ensures long-term compatibility between the compressor and complex gas components, preventing premature diaphragm failure or gas contamination due to material corrosion.
Key Design Points for Gas Mixture Compressors
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Explosion-Proof and Electrical DesignThe explosion-proof rating of the electrical system must be determined based on the component with the highest gas group classification and the lowest auto-ignition temperature in the mixture. All motors, instruments, and junction boxes must meet explosion-proof certifications. Control cabinets integrate combustible gas concentration detectors to trigger emergency ventilation if limits are exceeded.
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Strict Temperature Control & Diaphragm ProtectionMulti-stage compression and inter-stage cooling systems keep discharge temperatures within a safe range to prevent thermal decomposition. A standard diaphragm rupture monitoring system immediately triggers an alarm and shutdown upon failure of any diaphragm layer, preventing cross-contamination between gas and oil.
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System Safety InterlocksSpecial attention is paid to the stability of the inlet gas composition. Online gas analyzers monitor changes in key component concentrations. Systems are equipped with inert gas (e.g., nitrogen) purge connections for pre-startup purging and post-shutdown sealing to prevent explosive mixture formation.
Certificates
Model Selection
| Model G70Z/G95Z/G110Z/G130Z | Piston Stroke 70mm~130mm | Maximum Piston Force 10KN~30KN |
| Maximum Discharge Pressure 70Mpa | Flow Range 1~500Nm³/h | Motor Power 2.2KW~30KW |
| Crankshaft Speed 420rpm | Cooling Method Water Cooled/Air Cooled | |
| Model G70V/G95V/G130V | Piston Stroke 70mm~130mm | Maximum Piston Force 10KN~30KN |
| Maximum Discharge Pressure 50Mpa | Flow Range 1~200Nm³/h | Motor Power 2.2KW~30KW |
| Crankshaft Speed 420rpm | Cooling Method Water-cooled / Air-cooled | |
| Model G110L/G130L | Piston Stroke 110mm~130mm | Maximum Piston Force 20KN~40KN |
| Maximum Discharge Pressure 100Mpa | Flow Range 10~1000Nm³/h | Motor Power 7.5KW~90KW |
| Crankshaft Speed 420rpm | Cooling Method Water-cooled / Air-cooled | |
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Model
G110D/G130D/G150D/ G180D/G182D/G210D |
Piston Stroke 110mm~210mm | Maximum Piston Force 20KN~160KN |
| Maximum Discharge Pressure 100Mpa | Flow Range 30~2000Nm³/h | Motor Power 22KW~200KW |
| Crankshaft Speed 420rpm | Cooling Method Water-cooled / Air-cooled | |
Model Naming Nomenclature
G
Diaphragm type compressor
Z
Piston stroke 70mm
18
Flow (Nm³/h)
5
Inlet pressure (barg)
12
Outlet pressure (barg)
| No. | Model | Cooling water | Flow | Inlet pressure | Outlet pressure | Dimensions L×W×H | Weight | Motor Power |
|---|---|---|---|---|---|---|---|---|
| (L/h) | (Nm³/h) | (MPa) | (MPa) | (≈mm) | (≈kg) | (kW) | ||
| 1 | GZ-18/5-12 | 500 | 18 | 0.5 | 1.2 | 1000×800×1100 | 800 | 5.5 |
| 2 | GZ-30/21-60 | 500 | 30 | 2.1 | 6 | 1100×800×1100 | 800 | 7.5 |
| 3 | GZ-22/8-30 | 1000 | 22 | 0.8 | 3 | 1200×800×1100 | 800 | 11 |
| 4 | GV-20/6-150 | 1000 | 20 | 0.6 | 15 | 1400×800×1100 | 900 | 11 |
| 5 | GV-118/40-55 | 1000 | 118 | 4 | 5.5 | 1400×800×1100 | 1000 | 11 |
| 6 | GV-160/10-30 | 2000 | 160 | 1 | 3 | 2600×1800×1600 | 3000 | 18.5 |
| 7 | GL-55/3 | 1000 | 55 | Atmospheric | 0.3 | 2200×1800×1600 | 2800 | 11 |
| 8 | GL-130/0.5-1 | 1500 | 130 | 0.05 | 1 | 2300×1800×1600 | 2800 | 11 |
| 9 | GL-60/1-25 | 2000 | 60 | 1 | 2.5 | 2300×1800×1600 | 2800 | 22 |
| 10 | GD-200/3-61 | 4500 | 200 | 0.3 | 6.1 | 3800×2300×1800 | 6000 | 45 |
| 11 | GD-1000/20-120 | 10000 | 1000 | 2 | 12 | 4200×3200×2200 | 12000 | 132 |
| 12 | GD-950/12-126 | 15000 | 950 | 1.2 | 12.6 | 4200×3500×2200 | 12000 | 160 |
The equipment size and weight are for reference only, and the final design shall prevail.
Case Study
Russia
UNITED STATES
Spain
Kazakhstan
Frequently Asked Questions
1. Why is zero leakage critical for gas mixture diaphragm compressors?
Zero leakage is vital because many gas mixtures contain flammable, explosive, or toxic components. The diaphragm design physically isolates the process gas from the compressor oil, preventing environmental hazards and ensuring the exact chemical ratio of the gas mixture remains unaltered without oil contamination or air dilution.
2. How does the compressor adapt to corrosive or reactive gas mixtures?
The wetted parts of the compressor head, such as the metal diaphragm and gas cavity, are customized using highly chemical-resistant materials. Options include 316L stainless steel, Hastelloy, and other specialized alloys selected based on the most corrosive component in the gas mixture.
3. How is the explosion-proof rating determined for the system?
The explosion-proof rating is designed based on the most hazardous component in the mixture—specifically the one with the highest gas group classification and the lowest auto-ignition temperature. All electrical systems, motors, and instruments are certified to meet or exceed this rating.
4. What safety feature protects the system if a diaphragm breaks?
All models are equipped with a standard diaphragm rupture monitoring system. The diaphragm consists of multiple metal layers; if any layer fails, the pressure sensor immediately detects the change, triggers an alarm, and shuts down the compressor to prevent oil from entering the gas stream or gas from entering the crankcase.
5. Why is temperature control so strictly monitored in these compressors?
High discharge temperatures can cause thermal decomposition of sensitive gas mixtures or damage the metal diaphragms. To prevent this, we utilize multi-stage compression and highly efficient inter-stage cooling systems to keep the final discharge temperature within a safe operating limit.
6. What are the nitrogen purge connections used for?
Nitrogen purge connections are integrated for pre-startup purging and post-shutdown sealing. Purging removes ambient air from the system before startup, preventing the formation of explosive air-gas mixtures, and seals the system post-shutdown to block external air ingress.