Jiangsu Changzhou AVIC Lithium Battery Industrial Explosion-proof Cold Storage Project Plan

　　Project Category: Lithium Battery Industrial Explosion-proof Cold Storage Project

　　Project Period: 50 Days

　　Cooperation Year: 2022

　　Acceptance Date: September 2022

　　Project Requirements: China Electronics System Engineering Third Construction Co., Ltd. (hereinafter referred to as China Electronics Third Company) is the general contractor of the project, and the cold storage installation design part is designated to be undertaken by our company Shanghai Haoshuang Industrial Co., Ltd. The two parties reached a consensus on cooperation. The total volume of the project is about 6,000 cubic meters of industrial explosion-proof cold storage, project location: Changzhou, Jiangsu, the project period is 50 days, and it has been completed in March 2022. The project has passed the acceptance and is in use.

　　Project Overview:

　　(1) Cold storage insulation pentahedron * 3, cold storage 1~3 storage temperature is 0~10 degrees,

　　(2) Construction of three cold storages: walls, top plates and column wraps are made of polyurethane insulation board, double-sided color steel plate 0.5mm thick, wide ribs. Density: 40±2Kg/m³, PIR/B1 flame retardant. Cold storage 1 floor insulation: B2 flame retardant extruded board XPS, 100mm thick extruded board 50mm two layers cross-staggered laying, warehouse area 432m².

　　(3) Cold storage door: The cold storage has a total of 6 double-sided color steel cold storage sweeping doors, equipped with explosion-proof air curtain machine, size: 2200mm, the fan blades are made of aluminum to prevent sparks from friction. The doors all contain door frame heating wires, explosion-proof grade ExdⅡBT4. Three cold storage doors: two double-opening hand-pull aluminum frame sweeping doors, double-sided color steel plate 0.5mm thick.

　　(4) A total of 6 units: Each cold storage uses two air-cooled box units (non-explosion-proof, weathering defrosting), Emerson ZB190KQE (25p) Copeland compressor, R404a refrigerant, and each unit has two air coolers (one for use and one for backup).

　　(5) Air coolers: Each cold storage uses four modified industrial high-efficiency air coolers, the defrosting form uses weathering defrosting type, the motor and junction box explosion-proof level ExdⅡBT4, and each unit has two air coolers (two for use and two for backup). Note: The fan blades of the air cooler motor are made of aluminum or nylon to prevent sparks from friction. The cold air cooler hoisting screw is used to break the cold bridge to prevent condensation.

　　(6) Electric control system: Cold storage 1~3 share a set of cold storage control cabinets (non-explosion-proof, outdoor rainproof type). Siemens PLC electric control + spare mechanical standby temperature controller for cold storage, equipped with 6 sets of high-precision explosion-proof temperature on-site display instruments (one set installed at the door of each storage), electric control box with 9 temperature explosion-proof probes (three temperature control probes per storage, defrost probe, weathering defrost), one for use and one for standby, automatic switching in case of failure, automatic rotation and alternating work, the system is equipped with phase loss protection, phase sequence protection, current protection, cold storage over-temperature alarm, refrigeration equipment fault alarm, sensor fault detection and other functions, real-time recording and other functions; can realize mobile phone SMS alarm, on-site sound and light alarm, temperature data recording, curve display, query, alarm record query, on-site emergency stop button. Configure a standby controller and reserve a TCP/IP communication port. The control system can be operated on-site, or remotely controlled and monitored through a remote monitoring platform.

　　Others: 54 sets of explosion-proof LED lamps for cold storage, anti-corrosion, moisture-proof, explosion-proof, explosion-proof grade ExdⅡBT4; 6 sets of explosion-proof sound and light alarm lights and explosion-proof switches, explosion-proof grade ExdⅡBT4 (one set is installed on the inside of each warehouse door to prevent people from being locked in the warehouse by mistake. 6 sets of explosion-proof warehouse sign lights (safety exit indicator lights) (one set is installed above the inside of each door), explosion-proof grade ExdⅡBT4.

　　Design features: Environmentally friendly Freon refrigeration, explosion-proof grade ExdⅡBT4