T/SXAGS 0050-2024 Active Group standards

T/SXAGS 0050-2024 Axial flow fan grain cooling ventilation technical specification

Publish Date: 2024-12-26 Implement Date: 2025-01-26 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SXAGS 0050-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Buildings and equipment for the processing and storage of agricultural products

Publish Date: 2024-12-26

Implement Date: 2025-01-26

Scope

Scope: This document specifies the terms and definitions, system composition, basic requirements, main technical parameters, operating conditions, operation and management, and management after ventilation ends for the cooling and ventilation of grain storage using axial fans in silo warehouses. This document is applicable to the cooling and ventilation using axial fans during the storage of raw grains such as wheat and corn. This document is applicable to the ventilation of flat-roof warehouses with a stacking height of 6 meters or less, but not applicable to silos or shallow round warehouses. Main technical content: When the external temperature meets the requirements for cooling and ventilation, the doors and windows of the warehouse are closed, the ventilation ducts at the bottom of the warehouse are opened, and the axial fans are turned on to suck in air, creating a negative pressure in the upper part of the grain pile in the warehouse. This forces cold air from outside the warehouse to enter through the ventilation ducts at the bottom of the warehouse, penetrate the grain pile to remove heat, and discharge outside the warehouse, thereby reducing the grain temperature. 4. System Composition: The axial fan ventilation system consists of a ventilation network, a grain pile, axial fans located at the top of the warehouse, and a grain condition detection system. 5. Basic Requirements: The warehouse must have an airtightness not lower than the third-level standard for fumigation warehouses (pressure half-life ≥ 40 seconds). The warehouse should be equipped with grain condition detection functions. The ventilation network should be evenly distributed and meet the requirements for the path ratio of cooling and ventilation. The air volume of the axial fans should meet the requirements for selecting the unit ventilation volume, and the total pressure of the fans should be greater than the total resistance of the ventilation system.