The bag air duct has a great impact on the quality of the medicine; at the same time, most warehouse air ducts have been used for a long time, and the louver tuyere or diffuser often produces condensed water and dust. All of these have greatly affected the quality of drug storage, and it is even more difficult to reach the specifications of GSP certification. The pudding bag air duct adopts a unique air outlet form, so that there is no dead angle of air supply in the warehouse area, completes the overall uniform air supply of the warehouse, and insists on uniform temperature and humidity in different areas of the warehouse. The following are the air supply plans for different warehouse structures: High-bay warehouse: Select the jet air supply technology developed according to the characteristics of the pharmaceutical industry. The diffuser is installed on the upper part of the shelf passage in the high-bay warehouse, and the air-conditioning air is effectively sent to the bottom of the shelf through the jet nozzle on the diffuser. The flexible air duct forms a uniform airflow organization to ensure the temperature control in the warehouse, and the jet flow is the farthest. The air supply interval can reach 71 meters, which is the longest air supply interval in the industry, and can meet the air supply and airflow planning requirements of a huge space. Flat warehouse: The warehouse floor height is low, the pipeline layout is simple, and the diffuser can be arranged above the shelf channel, parallel to the light strip. The diameter of the pipe is generally controlled between 400-800mm. The selection of air supply forms such as row holes and multi-holes can ensure that there is no dead angle for the air supply. At the same time, the method of double-row hanging devices is used to achieve overall harmony and beautiful layout in the warehouse. Turnover area: The floor height is low, the personnel are relatively dense, and the pipe diameter is small. The air supply form of exhaust holes can be selected to ensure uniform and comfortable air supply. The airflow comes out of the exhaust hole and is quickly sent to the working area below 2.5 meters. The air-conditioning will be concentrated in the working area for a short stay in the sky, so as to achieve the effect of energy saving. big space. The three-dimensional elevated warehouse is a huge space building, regardless of the height direction, the horizontal length, and the width direction of the fiber cloth air duct are larger than ordinary buildings. This huge space scale brings inconvenience to the airflow organization of the central air conditioning system, and the conventional top air supply, side air supply and jet air supply are difficult to meet the requirements. The interior space is completely occupied by the rack and stacker operation process space. It is difficult for the air-conditioning supply and return air ducts to extend into the center of the interior space of the high-bay warehouse, and the return air ducts are also difficult to match. Therefore, it is still difficult to ensure uniform temperature in the high-bay warehouse. Humidity field. The entire interior space is a controlled air-conditioning zone. Because the high-bay warehouse may also store materials on the top layer of the shelf, the controlled air-conditioning area of u200bu200bthe high-bay warehouse is almost from the top to the ground. Therefore, it is determined that the elevated warehouse must maintain the uniformity of the temperature and humidity field regardless of whether it is in the vertical direction or the horizontal direction. The wind speed in the interior space should not be too large. Because some of the materials stored on the shelves are open, excessive wind speed can easily blow off the materials on the surface of the storage box. Uncertainty of material stocks. The storage quantity of materials on each shelf comes from the production demand, and the fiber bag air duct may be fully loaded or empty. Air conditioning airflow organization should adapt to this feature. The heat and humidity load of the air conditioner is not large. Because the materials stored in the high-bay warehouse produce almost no heat and moisture, the main heat and humidity loads come from the enclosure structure and the heat dissipation of the stacker operation. Generally, the illumination in the high-bay warehouse is relatively low, and the lighting and heat dissipation are also very small. The fabric air duct has no significant particularity in the heat and humidity load in the elevated warehouse. There is a temperature gradient within the elevated library. The enclosure structure is tight. Pudding Textile conducted in-depth research on the above characteristics of tobacco high-bay warehouses, and carried out CFD simulation of cloth air duct permeable fiber fabric air ducts combined with 7 air supply forms to confirm a suitable ventilation plan for high-bay warehouses.
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