Copper Gear Cargo Oil Pump

I. Product Positioning and Core Functions

Copper gear cargo oil pumps are precision fluid transportation equipment designed for marine, oil depot, tank truck, and other scenarios. Using copper alloy gears and pump bodies, they achieve efficient and stable transmission of fuel, lubricating oil, chemical liquids, and other cargo through the gear meshing principle. Their core functions include:

Explosion-Proof and Safety: Copper gears generate no sparks during meshing. Combined with explosion-proof motors (such as ATEX certification), they safely transport flammable and explosive media like gasoline, diesel, and aviation kerosene.

High-Reliability Transmission: Closed gear design (volumetric efficiency ≥90%) and self-priming performance (suction lift ≤5m) ensure rapid pipeline filling during startup, avoiding cavitation issues. Suitable for continuous marine operations, large-flow oil transportation in depots, etc.

Media Compatibility: Adapt to gasoline (flash point ≤-43℃), diesel (viscosity 3-8cSt), heavy oil (viscosity ≤1500cSt), and additive-containing fuels. Tin bronze gears withstand trace particles (≤0.1mm), while aluminum bronze adapts to seawater environments with Cl⁻≤20,000ppm.

Modular Design: Supports extended functions such as variable frequency control (accuracy ±1%), heating jackets (suitable for high-temperature fuel), and dual-gear redundant configurations to meet diverse working conditions.

II. Key Materials and Performance Parameters

III. Technical Advantages and Innovative Design

Low Noise and Long Life

Circular arc gear design (contact ratio ≥1.3) and precision dynamic balance treatment (residual unbalance ≤5g・mm), vibration value ≤2.0mm/s, noise ≤75dB, extending bearing life to 10,000 hours.

Smooth copper alloy gear surface (roughness Ra≤3.2μm), scaling rate 60% lower than cast iron, extending maintenance cycles to 12 months.

Intelligent Control and Energy Saving

Standard pressure sensor (accuracy 0.5 class) and temperature monitoring module automatically alarm and switch to standby pumps in case of abnormalities, enabling unattended operation.

Variable frequency control technology automatically adjusts flow according to load, maintaining efficiency ≥70% under variable conditions, with annual energy savings of 15%-25%.

Explosion-Proof and Safety Design

Copper gears generate no sparks during meshing. Combined with explosion-proof motors (such as ATEX certification), they are suitable for transporting flammable and explosive media like gasoline and aviation kerosene.

Built-in safety valve (full reflux pressure 1.5 times rated pressure) prevents overpressure damage caused by pipeline blockage or misoperation.

IV. Typical Application Scenarios

Marine and Offshore Engineering

Main Engine Fuel Supply: Tin bronze pumps transport heavy oil to marine diesel engines, resisting ship sway (tilt angle ≤15°), suitable for high-temperature fuel (oil temperature ≤120℃).

Seawater Cooling Systems: Aluminum bronze pumps withstand seawater with Cl⁻≤20,000ppm, flow 80-150m³/h. Combined with cathodic protection systems, service life is doubled compared to cast iron pumps.

Oil Depots and Ports

Large-Flow Oil Transportation: KCB series copper gear pumps transport gasoline and diesel, flow 1.1-600m³/h, pressure 0.28-2.5MPa, adapting to oil depot loading and ship unloading scenarios.

Cargo Tank Cleaning Operations: 2CY series copper gear pumps enable rapid oil unloading, with self-priming performance ensuring no priming during startup, suitable for -20℃~70℃ environments.

Industrial and Power Equipment

Generator Sets: ZYB series booster fuel pumps provide 0.5-2.5MPa pressure oil, flow 20-200L/min, adapting to diesel generator fuel injection systems.

Construction Machinery: Aluminum bronze pumps with vibration-resistant design (amplitude ≤0.04mm) transport hydraulic oil to excavators and loaders, pressure 0.5-1.0MPa.

Special Fuel Applications

Aviation Fuel: Precision copper gear pumps (sanitary design) transport aviation kerosene, flow 0.1-10L/min, pressure 0.2-0.6MPa, resistant to CIP/SIP cleaning (135℃, 30 minutes).

Hydrogen Energy Equipment: Tin bronze pumps transport ethylene glycol-containing cooling liquid (freezing point -30℃), pressure 0.5-1.0MPa, suitable for alkaline electrolysis environments (pH 10-12).

V. Selection and Maintenance Key Points

Key Selection Parameters

Media Characteristics: Choose tin bronze for particulate media, aluminum bronze for high-pressure/corrosive media, and brass for conventional scenarios.

Working Condition Matching: Heating jackets for high temperatures (>80℃), aluminum bronze + explosion-proof motors for explosion-proof areas, and electric tracing for low temperatures (<-20℃).

Maintenance Specifications

Daily Monitoring: Record inlet/outlet pressure and bearing temperature (temperature rise ≤35℃) daily; check vibration values (threshold ≤2.5mm/s) weekly.

Regular Maintenance: Clean Y-type filters (filtration accuracy ≤5mm) quarterly; remove oil sludge with special oil cleaners annually; replace mechanical seals when leakage >10 drops/minute.

Compliance Requirements

Industrial pumps must comply with GB/T 13007 Technical Conditions for Gear Pumps; explosion-proof scenarios need ATEX or UL certification; marine pumps require DNV GL or CCS classification society certification.

Food-grade applications need FDA certification; pharmaceutical-grade applications require ISO 10993 biocompatibility testing.