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Small knowledge of cooling of plate heat exchanger

hit count: Updated: 19/09/26 18:51:09 Source: coinaccel.com [ close ] share:

    During the operation of the equipment, it is necessary to pay attention to its temperature. The temperature of the plate heat exchanger also needs everyone's special attention. After all, the poor temperature control of the equipment will seriously affect its use effect and even its life.


    Small knowledge of plate heat exchanger cooling:



    BR0.37型板式换热器

    BR0.37 plate heat exchanger

    1. Thin rectangular channels are formed between the various plates of the plate heat exchanger, and heat is exchanged through the plates. It is made of corrugated sheet metal, and at the same time forms a narrow flow channel. Cold and hot fluids flow on both sides of the plate, respectively, and heat is exchanged through metal plates.

    Second, the four corners of the plate are provided with flow channel holes to form a fluid distribution tube and a convergence tube. The two ends of the entire equipment are tightly sealed with movable end caps and fixed end caps. The gap between the plates is 26mm. The main advantage of the plate heat exchanger is that when the fluid flows through the corrugated surface, it changes the flow direction from time to time, destroying the stagnant flow and forming Artificial turbulence enables the medium to reach turbulence at lower flow rates.

    MBR0.25型板式换热器

    MBR0.25 plate heat exchanger

    3. The heat transfer coefficient is large, the structure is compact, and the heat transfer area per unit volume is large. Each cubic meter volume has a heat transfer area of 2501250m2. It is convenient to disassemble, clean, overhaul, and increase or decrease the plate to adjust the heat transfer area, and the operation flexibility is great. However, the flow channel of the medium is narrow and easily blocked. The heat emitted from the hot phase of the plate heat exchanger is transmitted to the cold phase through the corrugated metal sheet, so that the cold phase absorbs heat and the energy is utilized.
    Fourth, the boiling temperature is low, and the vacuum cooling is based on the relationship between the boiling temperature and pressure of the solution in a closed container. low pressure. Under vacuum conditions, the boiling temperature is lower than the boiling temperature under normal pressure. The higher the degree of vacuum, the lower the boiling temperature.

    V. When the high-temperature sodium aluminate liquid enters the vacuum container, because its own temperature is higher than the boiling temperature under the vacuum condition, the liquid will self-evaporate and achieve the purpose of cooling while evaporating. Cooling water is circulated for circulation, and the liquid is concentrated and cooled. Part of the self-evaporating heat during the vacuum cooling process is taken away by the circulating cooling water and released to the air in the circulating water tower; the other part is discharged into the air with the vacuum pump. The heat of liquid self-evaporation is not reused.

    MBR0.4型板式换热器

    MBR0.4 plate heat exchanger

    6. In the shell-and-tube heat exchanger, the two fluids flow in the tube-side and shell-side, respectively, and are generally cross-flow. The logarithmic average temperature difference correction coefficient is small, and the plate heat exchanger is mostly cocurrent or countercurrent Flow way.
    Plate heat exchanger manufacturers thank you for your patience. For more knowledge of plate heat exchangers, please visit other pages to check. Plate heat exchangers have been widely used in the industry. Everyone must pay attention to daily maintenance after use to extend the service life of the equipment.
    contact us
    Contact: Zibo Taylor Heat Exchange Equipment Co., Ltd.
    Mobile: 13573335466
    Phone / Fax: 0533-4262767
    Email: 2313096826@qq.com
    Address: Fushan Industrial Park, Boshan District, Zibo City, Shandong Province