Three-Step Precise Matching Method: Say Goodbye to Oversized Pumps

Three-Step Precise Matching Method: Say Goodbye to Oversized Pumps

I. Precise Calculation

Head

Total Required Head = Vertical Height of Water Intake + Horizontal Distance × 10% (including pipeline losses)

Note: The rated head of the pump only needs to be 10% higher than the required value; otherwise, it will consume more electricity.

Flow Rate

Required Flow Rate (m³/h) = Irrigation Area (acres) × 30m³/acre ÷ Planned Time (hours)

*Example: 50 acres planned to be irrigated in 8 hours, required flow rate ≈ 188m³/h*

II. Scientific Selection

Select Pump Based on Water Source

Deep Well (>15 meters) → Submersible Pump

River/Pond/Canal → Centrifugal Pump

Mountain Terraces → Multistage Centrifugal Pumps

Check Energy Efficiency Labels

Prefer Level 1 energy efficiency products, as the efficiency difference can be over 15%.

Check Performance Curves

Choose pump models with a wide high-efficiency range and a gentle curve.

III. Optimization and Efficiency Improvement

Pipeline Optimization

Increase pipe diameter appropriately (resistance can be reduced by 50%)

Reduce the number of bends (each 90° bend ≈ increases head loss by 7 meters)

Intelligent Control

Install a frequency converter: saves 25%-40% on electricity

Set up time-sharing irrigation: utilize off-peak electricity prices

Regular Maintenance

Check seals monthly (leakage reduces efficiency by 30%)

Clean filters quarterly (clogging increases energy consumption by 15%)

Replace worn parts annually (replace when efficiency drops by 10%)

Implementation Results

Irrigation electricity consumption reduced by 30%-45%

Irrigation efficiency increased by over 25%

Equipment lifespan extended by 2-3 years

Through accurate demand calculation, reasonable equipment selection, and optimized operation and maintenance, efficient matching of pumps and farmland can be achieved, completely solving the energy waste problem of "oversized pumps for small loads".