◆◆ Key Components and Functionality ◆◆
1. Nitrogen Generation:
The plant typically uses an air separation unit (ASU) to extract nitrogen from ambient air. This involves compressing, cooling, and distilling air to separate nitrogen from oxygen and other gases.
The purified nitrogen gas is then liquefied through a cryogenic cooling process.
2. Storage and Distribution:
3. Freezing and Preservation Process:
Flash Freezing: Liquid nitrogen is sprayed directly onto food products (e.g., seafood, meats, fruits, vegetables, or ready-to-eat meals) in freezing tunnels or chambers. The ultra-low temperature causes rapid freezing, minimizing ice crystal formation and cellular damage.
Packaging Preservation: LN₂ is also used in modified atmosphere packaging (MAP) to displace oxygen, inhibiting microbial growth and oxidation.
◆◆ Advantages in Food Applications ◆◆
Speed: Freezing times are significantly reduced compared to conventional methods, enhancing production efficiency.
Quality Retention: Rapid freezing preserves the food’s original texture, moisture, and taste.
Extended Shelf Life: Inhibits bacterial and enzymatic activity, reducing spoilage.
Versatility: Suitable for delicate items (e.g., berries, herbs) and high-moisture products that are challenging to freeze traditionally.
Sustainability: Leaves no residues and reduces food waste by maintaining product integrity.
◆◆ Common Applications ◆◆
Meat and Seafood: Preserves tenderness and prevents freezer burn.
Dairy Products: Freezes ice cream and desserts smoothly.
Bakery Items: Locks in freshness for baked goods and dough.
Prepared Meals: Ensures ready-to-eat meals retain quality during storage.
◆◆ Safety and Efficiency ◆◆
Modern liquid nitrogen plants incorporate automated controls, temperature monitoring, and safety protocols to handle cryogenic materials safely. They are energy-efficient and scalable, catering to both small-scale producers and large industrial operations.
By integrating liquid nitrogen technology, food manufacturers achieve superior product quality, operational efficiency, and compliance with food safety standards, making it a cornerstone of advanced food preservation systems.
◆◆ RFQ ◆◆
1. Are you the manufacturer of this equipment？
Yes, we are an experienced manufacturer specializing in this field for 25 years.
2. Can the system be customized to meet specific requirements？
We provide custom-engineered solutions for different applications.
3. Have your products been deployed in global markets?
Yes, we have successfully supplied our air separation plants to over 50 countries worldwide, complying with international standards like ASME.
4. What after-sales services do you provide?
We offer comprehensive after-sales support including:
✔ Technical Consultation - 24/7 expert guidance
✔ Remote Monitoring - Real-time system performance tracking
✔ Maintenance Packages - Scheduled inspections & consumable replacements
✔ On-site Service -Engineer oversea service available
✔ Spare Parts Supply - Original components with 18-month warranty
✔ Operator Training - Customized programs for client's technical team
5. Do you offer technical support services?
We cordially invite you to visit our manufacturing facility or participate in our online technical exchange seminar for detailed discussions.
We welcome you to reach out to our technical specialists for detailed consultations and customized solutions.
