Copper Centrifugal Cooling Pump

I. Product Positioning and Core Functions

Copper centrifugal cooling pumps are high-efficiency heat dissipation solutions designed for industrial equipment, central air conditioning, marine power, and other scenarios. Using copper alloy impellers and pump bodies, combined with the centrifugal force transportation principle, they achieve rapid circulation and heat exchange of cooling liquids. Their core functions include:

High-Efficiency Heat Dissipation: Through closed impeller design (hydraulic efficiency ≥80%) and large flow (5-500m³/h), they rapidly reduce equipment temperature to ensure continuous operation.

Media Compatibility: Adapt to media such as clear water, corrosion inhibitor-containing cooling water (pH 6-9), and frozen brine (-20℃~120℃). Tin bronze materials can withstand trace sediment (≤0.5%) and mildly corrosive ions (Cl⁻≤20,000ppm).

Modular Design: Supports extended configurations such as variable frequency control (accuracy ±1%), cooling jackets (suitable for high-temperature conditions), and explosion-proof motors (Ex d IIB T4) to meet diverse needs.

II. Key Materials and Performance Parameters

III. Technical Advantages and Innovative Design

Cavitation Resistance and Low Vibration

The impeller adopts a streamlined design (roughness Ra≤6.3μm), combined with mechanical seals (silicon carbide/fluororubber combination), effectively inhibiting bubble generation. Net Positive Suction Head (NPSH) ≤3.5m, vibration value ≤2.0mm/s.

Precision dynamic balance treatment (residual unbalance ≤5g・mm) and elastic coupling installation reduce mechanical wear and extend bearing life (normal operation temperature rise ≤40℃).

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%.

Long Life and Low Maintenance

Smooth copper alloy surface reduces scaling rate by 60% compared to cast iron, extending maintenance cycles to 6-12 months. Mechanical seal leakage ≤5 drops/minute, life exceeding 8,000 hours.

Detachable pump casing design (such as double-suction pump structure) eliminates the need to dismantle pipes during maintenance, reducing maintenance time by 30%.

IV. Typical Application Scenarios

Industrial Cooling Systems

Air Compressor Cooling: Tin bronze pumps transport circulating cooling water (turbidity ≤10NTU), flow 50-200m³/h, head 30-50m, resisting corrosion from corrosion inhibitors (such as molybdates) in cooling water.

Injection Molding Machine Temperature Control: Brass pumps with plate heat exchangers achieve precise mold temperature control (±1℃), suitable for high-temperature oil cooling (oil temperature ≤120℃).

Central Air Conditioning and Building Energy Saving

Chilled Water Circulation: Closed impeller design reduces air entrainment. Tin bronze pumps transport -10℃~70℃ chilled water, with hydraulic efficiency ≥80%, suitable for large commercial complexes.

Ground Source Heat Pump Systems: Aluminum bronze pumps withstand trace sulfides (S²⁻≤5ppm) in groundwater, flow 100-300m³/h, head 50-100m, complying with GB/T 30948-2021 pump station management standards.

Marine and Offshore Engineering

Engine Room Cooling: Tin bronze pumps serve as marine auxiliary engine cooling pumps, draining fresh water to the generator system. Vibration-resistant design (amplitude ≤0.04mm) adapts to ship swaying conditions.

Seawater Cooling: 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.

New Energy and Precision Equipment

Data Center Liquid Cooling: Brass pumps drive deionized water through microchannel heat exchangers (channel diameter 100-300μm) to achieve CPU chip-level heat dissipation with heat flux exceeding 1000W/cm².

Hydrogen Energy Electrolyzer Cooling: 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: Cooling 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 scale with citric acid solution (concentration 3-5%) annually; replace mechanical seals when leakage >10 drops/minute.

Compliance Requirements

Industrial pumps must comply with GB/T 13006 Technical Conditions for Centrifugal Pumps; drinking water pumps require NSF 61 certification; explosion-proof scenarios need ATEX or UL certification.

Export equipment must meet ISO 5199 standards; food-grade applications require FDA certification; marine pumps need DNV GL or CCS classification society certification.