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Cool warehouse bag: some knowledge points of cool warehouse bag
2021-03-01
The cool storage bag is a low-temperature air supply place, but there are some unavoidable problems in the traditional low-temperature air supply. Low temperature air supply belongs to non-isothermal air supply. Due to the low temperature of the air supply, the "cold air" in the room can easily fall to the work area quickly, or the "hot air" can float to the top of the work area and cannot fully mix with the air in the work area.
Moreover, since the air supply temperature is usually lower than the dew point temperature of the surrounding air, "fogging" and water dripping are prone to occur at the air supply outlet, causing damage to the indoor environment. The emergence of these problems puts forward higher requirements for the terminal air supply device of the low temperature air supply air conditioning system. In view of the problem that the system is prone to cold air and condensation on the surface of the tuyere, it is very important to choose the end air supply device reasonably.
In order to solve the problem of low-temperature air supply and achieve the purpose of saving energy and reducing consumption, the cool storage bag low-temperature air supply system adopts a combined design of an integrated air-cooled condensing unit, an air cooler and a bag-type air duct. Among them, the air-cooled condensing unit is used as a low-temperature cold source, the air cooler is used as a low-temperature air supply heat exchange equipment and power transmission equipment, and the cool storage bag air duct is used as a terminal air distribution component. The use of air-cooled condensing units and air coolers can achieve the purpose of low-temperature air supply, and the use of cool storage bags can well solve the problem of low-temperature air supply.
The cool storage bag air duct is made of a variety of materials, and the airflow distribution is affected by the radian of the material, the shape of the orifice, the size of the orifice, the position of the orifice and the porosity. In engineering applications, in order to obtain accurate air supply organization, according to different environmental requirements, CFD technology and professional software are assisted in system design, and the air duct transports the airflow evenly and accurately to the designated space.
The low-temperature cold source is adopted, and the low-temperature air supply adopts the cool storage bag with uniform air supply characteristics , so that the cool storage can meet the temperature requirements while minimizing the investment. The most fundamental, direct and effective way to reduce the initial investment is to reduce the air volume of the air conditioner and the energy consumption of the refrigeration unit equipment. Using the air-cooled condensing unit as the cold source, the equipment integration has a high degree of automation, which greatly reduces the quantity and capacity of all air and water treatment, transmission and distribution equipment, including air conditioning boxes, pumps, pipes and accessories, air terminal equipment and air conditioning automatic control systems equipment, and also reduces the area of the air-conditioning machine room, the building space required for piping and the electricity demand for air-conditioning equipment.
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