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Shiyan cost-effective biological fermentation equipment process

Release time: 2020-02-08 05:06:25

On the issue of where MVR evaporator manufacturers do well, customers should mainly consider whether the other party can guarantee the normal use of the evaporator for a long time. The operating environment inside MVR evaporators will face more corrosion and pressure under day-to-day use. If MVR evaporator manufacturers do not do enough in all aspects of evaporator performance, then customers are likely to face continuous maintenance and Shut down.

The solution flow in the multi-effect falling film evaporator can exist in co-current, advection, counter-current, and cross-flow modes. It is not difficult to choose a method between them. Cost to choose them. The Xinjiang example discussed in this article belongs to the countercurrent mode, and the solution and steam form a countercurrent.

The wastewater evaporator needs to be equipped with a complete set of treatment solutions based on its experience. This can ensure that the entire system has a good treatment effect. Then, according to the characteristics of its sewage and wastewater, it can be targeted. Made of its anticorrosive materials.

Application range of combined multi-effect evaporator: a. Wide application range and good treatment effect; b. Suitable for concentrated crystallization of various materials; c. Suitable for both MVR evaporation form and traditional steam evaporation.

The amount of water and evaporation of the MVR evaporator affects the size and scale of the MVR evaporator. The quality of water, materials, treatment and evaporation provided by customers determines the size of the MVR evaporator, as well as the material of the heat exchanger, the size of the evaporation area, and investment in equipment.

Characteristics of multi-effect mode evaporator; relatively compact structure, reasonable layout, small footprint, easy to install; high production efficiency is the characteristic of multi-effect mode evaporator, its evaporation capacity is huge; multi-effect falling film The energy saving effect of the type evaporator is very significant, and the energy consumption is about one third of that of the general mode evaporator. QMA is less than or equal to 0.44, and QB / Q is less than or equal to 7.99, where Q refers to the evaporation of fresh water, QA refers to the consumption of steam, and QB refers to the consumption of cooling water.

The energy consumed by the MVR mechanical compression evaporator is electrical energy. Evaporating 1 ton of water generally consumes 15-27 degrees of electricity. Generally, materials with a small boiling point increase can reach 1 ton of water and electricity. The degree of energy saving is closely related to the user's local fresh steam unit price and electricity price. For example, the unit price of steam is 180 yuan / ton, the electricity price is 0.7 yuan per watt compared to the five-effect evaporator, and 0.23 * 180-20 * 0.7 is saved for each ton of water evaporated. = 27.4 yuan, if the evaporation capacity is 100 tons, the annual operating time is 330 days, and the work is 24 hours a day, the annual energy saving cost is 27.4 * 100 * 24 * 330 = 21700800 yuan.

Single-effect or multi-effect falling film evaporator, suitable for low-temperature continuous evaporation and concentration in industries such as milk, glucose, starch, xylose, pharmaceutical, chemical, biological engineering, environmental protection engineering, waste liquid recovery, etc., with high heat transfer efficiency and materials Main characteristics such as short heating time, so it is especially suitable for materials such as heat sensitivity, viscosity, foaming and so on.

Note that the energy consumption of the MVR evaporator is balanced with the equipment cost. The design of the MVR evaporator scheme should be based on the amount of evaporation, but the operating cost should be fully considered in the design to ensure that the energy consumption per ton of water evaporated by the MVR steam compressor is reduced.

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