手机彩票网体育彩票

What is Suizhou high-quality continuous crystallizer

Release time: 2020-02-08 19:21:24

Central circulation tube evaporator: This evaporator heating chamber consists of a vertical tube bundle with a large diameter tube in the middle, called the central circulation tube. When the heated steam is heated between the tubes, the central circulation tube is larger. The heat transfer surface occupied by the unit volume solution is smaller than that occupied by the other solution in the heating tube. That is, the central circulation tube and the other solutions in the heating tube are heated differently. The same. The latter is better heated. The solution vaporizes more. Therefore, the density of the vapor-liquid mixture formed in the heating tube is smaller than the density of the solution in the central circulation tube, so that the solution in the evaporator forms a central circulation tube and is lowered by other Circulating flow of heating tube rising. This cycle is mainly caused by the density difference of the container, so it is called natural circulation.

Does the vibration produced by the vacuum pump affect the process and the environment? If the process is not allowed, a vibration-free pump should be selected or anti-vibration measures should be taken.

MVR (Steam Mechanical Compression Device) is an evaporation and concentration equipment that compresses and heats all the secondary steam into heating steam and recycles it. The installation space of the MVR evaporator is about twice that of the ordinary multi-effect evaporator, and the equipment investment is relatively large, but the operating cost is much lower than that of the ordinary multi-effect evaporator. In order to avoid operator error or MVR failure due to incorrect operation, it is necessary to protect the self-controlling operating system of the equipment. .

The mouth of the distilled water storage tank is provided with a liquid level gauge (static pressure, capacitive, non-contact, ultrasonic, glass tube type), air respirator, thermometer (digital display or dial type), CIP cleaning port, SIP sterilization port, liquid inlet and outlet and sanitary manhole.

The choice of multi-effect evaporator efficiency generally requires consideration of the amount of solution processed, the boiling point of the material being evaporated, the specific heat of evaporation, the boiling curve and flow behavior under different pressures, and whether there is a tendency to scale, and Comprehensive consideration of temperature sensitivity and salt precipitation. If the amount of processing is large, multi-effect operation should be adopted; the more the number of effects, the smaller the steam consumption, and the higher the equipment investment; the larger the boiling point value, the smaller the effective temperature difference, and the number of effects should be reduced.

The MVR evaporator is suitable for low-temperature concentration in industries such as milk, glucose, starch, monosodium glutamate, xylose, pharmaceuticals, chemical engineering, biological engineering, environmental protection engineering, waste liquid recovery, papermaking, and salt making.

The MVR evaporator has a high degree of automation and completely adopts automatic control. Natural evaporation means that the solution evaporates at a temperature lower than the boiling point, such as sea salt. In this case, the solvent vaporizes only on the surface of the solution, and the solvent vaporization rate is low. Boiling evaporation heats the solution to the boiling point and causes it to evaporate in the boiling state. This is basically the case for industrial evaporation operations.

The normal operating conditions and use methods of the three-effect evaporator are also essential for equipment operators, and can be repaired in time when the equipment fails. Several common equipment failures and main reasons of the three-effect evaporator: When the three-effect evaporator fails, it is mainly because the low vacuum is too low to maintain the boiling point of the concentrate, and the temperature of the secondary steam increases, which reduces the heating. The effective temperature between steam and concentrate reduces heat transfer and slows down the rate of steam evaporation, and the heating temperature of the heating material affects the preservation of active ingredients.

彩53彩票网 万人炸金花 新橙彩票 电子游戏 360彩票 中国福彩网 一定牛彩票网 精选四肖三码 白小姐四肖必选一肖四不像 六肖中特精选

(function(){ var canonicalURL, curProtocol; //Get the tag var x=document.getElementsByTagName("link"); //Find the last canonical URL if(x.length > 0){ for (i=0;i