In air separation (AS) systems, cryogenic pumps serve as the core critical equipment for pressurizing and transporting low-temperature media such as oxygen, nitrogen, and argon. Their operational stability, transportation efficiency, and medium purity assurance capability directly determine the production capacity output, energy consumption control, and safety compliance of air separation units (ASUs). AS scenarios feature complex operating conditions—significant differences exist in the adaptability requirements for cryogenic pumps across varying scales (small-scale oxygen generation stations/large-scale ASUs), media types (liquid oxygen/liquid nitrogen/liquid argon), and transportation parameters (flow rate/pressure). With years of in-depth experience in the air separation and low-temperature equipment sectors, we accurately align with the core needs of the air separation industry, providing comprehensive application consulting services for AS-specific cryogenic pumps, and laying a solid core foundation for the low-temperature transportation link of your AS project.
Core Adaptable Cryogenic Pump Types and Application Key Points for Air Separation Scenarios
Targeting the core characteristics of AS systems—"low temperature, high pressure, and high-purity media"—we have sorted out mainstream adaptable cryogenic pump types. Combining practical experience from numerous AS projects, we clarify the adaptability boundaries and application advantages of various equipment, helping you achieve precise selection and avoid selection risks.
1. AS-Specific Submerged Cryogenic Pump
Core Advantages: The entire pump body is fully submerged in low-temperature media (liquid nitrogen/liquid argon), fundamentally eliminating cavitation issues with extremely strong operational stability; adopts a low-temperature seal-less structure and cryogenic-resistant motor, adaptable to AS low-temperature operating conditions of -196℃ to -253℃, with no risk of medium leakage, and effectively ensuring the purity of the transported medium (preventing contamination from air ingress); features high transmission efficiency, reducing energy consumption by 15%-20% compared to traditional pump types, aligning with the energy-saving requirements of ASUs.
Applicable AS Scenarios: Pressurization of low-temperature medium storage tanks in large-scale ASUs and external transportation of finished low-temperature liquids (liquid nitrogen/liquid argon); circulating transportation of liquid nitrogen and pressurization of liquid nitrogen backup systems in small-to-medium-sized oxygen generation stations.
2. AS High-Pressure Multi-Stage Cryogenic Pump
Core Advantages: Coaxial design of motor and pump body, equipped with labyrinth seals to reduce low-temperature medium leakage and ensure operational safety in AS workshops; compact structure, suitable for the transportation and pressurization of liquid oxygen, liquid nitrogen, and liquid argon in large-scale AS systems.
Applicable AS Scenarios: Transportation of high-purity oxygen in small-scale oxygen generation stations (specialized for hospitals/laboratories); low-temperature medium circulation loops in ASUs (e.g., rectification column reflux transportation); electronic-grade nitrogen/argon transportation systems with high requirements for operational stability and medium purity; liquid oxygen transportation in large-scale coal chemical enterprises.
3. AS High-Pressure Reciprocating Cryogenic Pump
Core Advantages: Strong pressure boosting capacity, adaptable to high-pressure operating conditions in AS systems (outlet pressure up to several tens of MPa); positive displacement transportation characteristics, ensuring uniform flow output and small pressure fluctuation; excellent impact resistance, capable of adapting to variable operating conditions such as ASU startup/shutdown and load adjustment, with high operational reliability.
Applicable AS Scenarios: External transportation of high-pressure oxygen in large-scale ASUs (e.g., high-pressure oxygen for iron and steel smelting, chemical synthesis); high-pressure filling and transportation of high-purity argon (a by-product of air separation); high-pressure low-temperature medium transportation in specialized AS systems for special industries (aerospace/military industry).
Precise Consulting Services Exclusively for the Air Separation Industry, Solving Core Pain Points
We deeply understand the core needs of the air separation industry for cryogenic pumps—"high reliability, high purity assurance, and low energy consumption". We provide customized consulting services for the entire life cycle of AS projects, accurately solving full-process pain points such as selection, operation, and optimization:
- Operating Condition Adaptation and Selection Planning: In-depth investigation of core needs including your ASU scale, transported medium type, flow rate/pressure parameters, installation space, and energy consumption indicators; combining AS process logic, recommend the optimal cryogenic pump type and specific parameters, and provide detailed selection basis and feasibility analysis;
- Purity and Safety Assurance Consulting: Address specific AS safety and purity requirements such as flammability of liquid oxygen and anti-contamination of high-purity media; provide professional suggestions on pump seal structures, material selection (anti-oxidation/anti-corrosion), and system explosion-proof design, ensuring compliance with industry standards such as the "Safety Technical Specifications for Oxygen and Related Gas Production by Cryogenic Distillation";
- Operation Optimization and Energy Consumption Control: For existing AS cryogenic pump systems, analyze operational data, provide parameter adjustment and maintenance optimization plans to reduce energy consumption and O&M costs; provide accurate calculation of equipment investment and long-term operational costs for new projects;
- Full-Process Technical Support: Provide full-process technical guidance from consulting and selection to equipment installation and commissioning, personnel operation training, and post-operation fault diagnosis and upgrading; offer 24/7 response from a professional technical team to ensure efficient and coordinated operation of cryogenic pumps and AS systems.
Whether you need cryogenic pump selection planning for a new AS project, or equipment upgrading and operation optimization for an existing AS system, contact us now! Inform us of your ASU scale and core needs, and our professional team will provide you with one-on-one precise consulting services and customized solutions!