Beijing Meilay (Changping) 4,000㎡ Freezing + Fresh-keeping Cold Storage

ByJinzhao Yuan

Project Overview

Jinzhao Yuan Refrigeration delivered a comprehensive 4,000㎡ dual-function cold storage facility for Beijing Meilay in Changping District, Beijing — integrating both deep-freezing and fresh-keeping functions to serve the enterprise’s diversified cold chain logistics requirements.

Project Background

Beijing Meilay operates a major food logistics and distribution platform in the Beijing metropolitan area. Their Changping facility required a purpose-designed cold chain center combining frozen goods storage with fresh produce preservation. The dual-function requirement, combined with Beijing’s complex climate conditions (summer highs above 38°C, winter lows below -15°C), demanded sophisticated system engineering.

Solution & Technical Highlights
  • Storage Type: Freezing Storage + Fresh-keeping Storage (integrated dual zone)
  • Total Area: 4,000 ㎡
    • Freezing zone: 2,500㎡ (-18°C ~ -22°C)
    • Fresh-keeping zone: 1,500㎡ (0°C ~ +5°C)
  • Refrigeration System:
    • Freezing zone: High-efficiency semi-hermetic compressor units, R404A/R449A
    • Fresh-keeping zone: Scroll compressor units with humidity control
  • Insulation:
    • Freezing zone: 200mm PU panels with reinforced floor insulation (anti-frost heave treatment)
    • Fresh-keeping zone: 150mm PU panels
  • Anti-Frost Heave: Electric heating cables embedded under freezing zone floor slab to prevent ground frost heave
  • Doors: Automated insulated sliding doors; high-speed roll-up doors at dock areas
  • Control System: Unified SCADA monitoring system covering both zones; mobile app remote monitoring for management team
Adaptation to Beijing’s Climate

Special engineering considerations were implemented for Beijing’s extreme seasonal temperature variations:

  • Summer: High ambient condensing temperature compensation — VFD-controlled condenser fans and water spray pre-cooling for condensers
  • Winter: Crankcase heaters, refrigerant liquid line protection, minimum compressor head pressure control
Results
  • Total cold chain capacity: 3,000 metric tons (combined zones)
  • Achieved Beijing municipal cold chain facility certification
  • Year-round operational stability across all four seasons
  • 20% reduction in electricity costs vs. client’s previous facility through optimized system design

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