LPG unloading compressor with pressure lubrication method

The LPG unloading compressor enables the safe and efficient transfer of liquefied gas from storage tanks to transportation tankers (or vice versa) using advanced gas compression technology. It also features residual gas and liquid recovery functions, minimizing resource waste and enhancing economic efficiency.

Main Parameters of LPG Unloading Compressor

• Applicable gases: Liquefied petroleum gas (LPG) and other process gases
• Flow rate: 8.0 m³/min
• Inlet pressure: 1.0 MPa
• Discharge pressure: 1.6 MPa

Features of LPG Unloading Compressor

1. High efficiency and energy saving: Integrated structure, no need for extra auxiliary equipment, low energy consumption, and low operating costs.
2. Compact structure: Reasonable overall design and small footprint, suitable for various loading and unloading environments.
3. Convenient maintenance: Simple operation, durable core components, long lifespan of wearing parts, and reduced maintenance costs.
4. Safe and reliable: High-grade sealing and explosion-proof design ensure safe operation with flammable and explosive gases.
5. Strong adaptability: Fixed or mobile options available to suit different working conditions.

Working Principle of LPG Unloading Compressor

The core principle is based on the cyclic process of gas compression and transportation:

1. Gas inhalation: The compressor draws low-pressure liquefied gas from the storage tank or tanker.
2. Gas compression: Gas pressure is increased via a piston or screw-type compression mechanism.
3. Gas transportation: High-pressure gas is transported to the target container (storage tanks or pipeline systems).
4. Residual gas recovery: Residual gas generated during loading/unloading is recovered to minimize waste.
5. Residual liquid recovery: The compressor’s suction function gasifies any residual liquid in the tank and transports it to the recovery system.

Application Areas of LPG Unloading Compressor

1. Energy industry: Used for loading, unloading, and storage of liquefied petroleum gas in oil and gas sectors.
2. Chemical industry: Handles loading, unloading, storage, and distribution of ammonia, Freon, ethane, ethylene, propane, dimethyl ether, and more.
3. Transportation and logistics: Ideal for gas handling in tank trucks, tank cars, and railway transportation systems.
4. Environmental protection and recycling: Suitable for exhaust gas recycling systems, improving resource utilization and reducing pollution.

LPG Unloading Compressor Equipment Type Selection

• Lubrication mode:
  • Pressure lubrication — for high load and long-term operation
  • Splash lubrication — for light load and short-term operation
• Product structure:
  • Single-cylinder vertical — simple structure, easy maintenance
  • Double-cylinder vertical — good balance, suitable for large flow
  • Symmetrically balanced — low vibration, suitable for high-precision needs
• Installation method:
  • Fixed type — for fixed locations such as factories and stations
  • Mobile type — for mobile loading/unloading needs (tank trucks, terminals)