Corrosion Resistant Centrifugal Pump
Corrosion Resistance Core: Material and Structural Optimization
A special model designed for conveying corrosive media, the corrosion resistant centrifugal pump adopts corrosion-resistant materials to customize key components, combined with a special sealing structure, completely solving the problems of leakage and component corrosion of corrosive media. Its working principle is consistent with the basic model, but through material upgrading and flow channel optimization, the corrosion resistant centrifugal pump ensures stable operation in harsh media such as acid-base and salt solutions.
Structural Design and Key Performance
The core of the structure is the material adaptation of flow channel components: 316L stainless steel is used for conveying weakly corrosive media, fluoroplastic lining or Hastelloy is used for strongly corrosive media, and polytetrafluoroethylene or silicon carbide materials are used for seals to avoid medium erosion. The pump body of the corrosion resistant centrifugal pump adopts a large-opening flow channel design to reduce medium residue and clogging risks.
Performance parameters
|
Parameter Name (Symbol) |
Core Function |
Range |
|
Flow Rate (Q) |
Indicates the hourly sewage delivery capacity and determines sewage discharge efficiency |
1-1000m³/h (Small-sized: 1-50m³/h; Large-sized: 50-1000m³/h) |
|
Head (H) |
Determines the sewage lifting height and long-distance conveying capacity |
5-100m (Small-sized: 5-30m; Large-sized: 30-100m) |
|
Power (P) |
Motor driving power, directly affecting the upper limits of flow rate and head performance |
0.75-320kW |
|
Caliber (DN) |
Diameter of water inlet and outlet, which shall match the on-site sewage pipe size |
25-300mm |
|
Medium Temperature |
Adapts to sewage of different temperatures to avoid equipment damage |
Normal Temperature Type (≤40℃); High Temperature Type (≤100℃) |
|
Medium Concentration |
Refers to the solid particle content in sewage, affecting the pump's anti-clogging and wear resistance |
Solid Content ≤10%-30% |
|
Parameter Name (Symbol) |
Core Function |
Common Range/Description |
|
Flow Rate (Q) |
Volume of fluid delivered per unit time, reflecting the pump's delivery capacity |
Several L/min to thousands of m³/h; Common units: m³/h, L/min |
|
Head (H) |
Energy obtained per unit weight of fluid, reflecting the pump's ability to overcome resistance and lift fluid |
Single-stage ≤125m; Multi-stage up to thousands of meters (Unit: m water column) |
|
Rotational Speed (n) |
Impeller rotation speed, matched with the motor, directly affecting flow rate and head |
Common: 2900r/min, 1450r/min |
|
Efficiency (η) |
Ratio of effective power to shaft power, reflecting energy conversion efficiency |
Ordinary type: 90%-98%; Highest efficiency under design conditions |
|
Net Positive Suction Head (NPSH) |
Minimum suction pressure margin to prevent cavitation in the pump and protect the impeller |
Unit: m; Device margin must be greater than required margin |
|
Medium Adaptability |
Determines the material selection of pump body and components to ensure equipment durability |
Including temperature, viscosity, corrosiveness, solid content; Select materials as needed |
Exclusive Application in Corrosive Scenarios
The corrosion resistant centrifugal pump is mainly used in scenarios such as the chemical industry (such as sulfuric acid and hydrochloric acid transportation), electroplating industry (acid-base waste liquid treatment), environmental protection industry (desulfurization and denitrification absorption liquid transportation), and pharmaceutical industry (corrosive solvent transportation). According to the medium corrosion level, an exclusive material scheme can be customized, and the service life is 3-5 times longer than that of ordinary centrifugal pumps.
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