四川成都—— 天府粮仓里走出节粮减损“绿色标杆”

Core Viewpoint - The Sichuan Xinjin Direct Grain Storage Warehouse, a subsidiary of the China National Grain Reserves Group, has successfully implemented modern grain storage technologies, emphasizing green and low-carbon practices to enhance food security and reduce waste [1][2]. Group 1: Technological Innovations - The Xinjin Direct Warehouse has established the world's first elevated membrane grain storage facility, which has been recognized as one of the "Top Ten Super Projects" by state-owned enterprises in 2022 [1]. - The membrane warehouse features an integrated structure with a PVDF polymer waterproof layer, polyurethane insulation layer, and reinforced concrete structure, ensuring excellent insulation, airtightness, and waterproofing for effective low-temperature grain preservation [1]. Group 2: Performance Metrics - Since its launch, the membrane warehouse has shown significant improvements in key performance indicators, with a 70% reduction in heat transfer coefficient compared to traditional shallow circular warehouses, effectively delaying temperature increases and preventing grain quality deterioration [2]. - The half-life of empty warehouse tests has reached six times the standard requirements for high-standard grain storage, and energy consumption has been reduced by over 30% due to the elimination of secondary gas replenishment during gas adjustment operations [2]. Group 3: Sustainability and Efficiency - The Xinjin Direct Warehouse has achieved a reduction in storage loss from 0.37% in 2022 to 0.12% by 2025, with each membrane warehouse contributing to a decrease of approximately 3 tons of carbon dioxide emissions annually [2]. - The average energy consumption for air conditioning, grain cooling, and winter ventilation operations in the membrane warehouse has been reduced by 10% [2].