MVR falling film vacuum evaporation system for seawater salt industry and soda industry
Mechanical vaporization re-compression system, which is called MVR which principle is to compress the second steam generated by evaporator by high efficiency steam compressor; this process transfers electric energy to heating energy and higher the pressure and temperature of second steam.
The second steam with higher temperature will be sent to evaporation room to heat the product for evaporation. So the latent heat of vaporization of the second steam can be circularly used. Making use of less energy which is the mechanical energy of compressor blade wheel as the compression heat pump, energy is added into the heating medium and is circularly used in heating process. Under this circumstance, no need to add first steam as heating medium.
|Characteristic of system
|1. Lowest energy consumption and operation cost,electricity consumption of one ton water's evaporation is 2.2ks/C
|2. Temperature difference is small ,heating is gentle ,the loss of product is less
|3. Compact structure and lower building cost,plant area is 50% less than that of traditional evaporator
|4. Surrounding is friendly,no gas and no steam
|5. Good adaptability in low loading condition,flexibility of operation is good and has a longer service life
|6. Consumptio of circular water is low and energy saving is obvious
|7. No fresh steam is needed
|8. Evaporation can be carried out under 40degree and equipment need not to be frozen,specially suitable for thermal activity products
1. Alcohol recycling: Big recycling capacity with vacuum concentrating flow, 5-10 times of productivity than the old types, 30% of energy cost, small investment and big profit.
2. Concentrating liquid material: Combination of external heating cycling and vacuum vaporizing, quick vaporizing speed, contracting rate 1:3; In the complete sealing, there is no foaming and the contracted medicine is not polluted and of strongmedicine flavor.
And the external circulation vacuum concentrator is easy to clean (cleaning can be done after openingthe upper and lower lids). The vacuum concentration tank is of easy operation, covers small area.The heater, vaporizer adopts the stainless steel heat keeping structure. The shell is made of stainless steel, and the surface is mirror processed and matted.
Evaporation and concentration for process industry
1)food fermentation (aginomoto, citric acid, starch and sugar)
2)pharmacy (traditional Chinesemedicine preparation, low temperature concentration of western medicine)
3)fine chemical (pesticide, synthetic dyes, organic pigments, paints, spice and essence, cosmetic)
4)chlorine chemical (salt water concentration)
|Main Features:"zero release" solution for industrial waste water
|Ammonia and chloride waster water, multiple inorganic salt waster water
|Electroplating waste water
|Printing and dyeing waste water
|Food industry waste water
|Paper waste water
|Petrochemical, metallurgy waste water
TVR(Thermal Vapor Re Compression)
evaporation,that is,the recompression evaporation of thermal steam,uses the principle of steam jet pump and uses high/medium pressure steam as power to compress and mix part of the secondary steam and then enter the heating chamber as heating steam
Generally used the heat recycling evaporation strictly requirements to waste gas quality,especially to the solid contents.
Used for material pre concentration with low run cost.
Multi-effection evaporation is a system that connects multiple evaporators.Only fresh steam is added to the first effect,and the generated secondary steam is used as the heating steam of the latter effet,that is,the heating chamber of the latter effect becomes the condenser of the former seconday steam.By analogy,the last effect is often operated with colling medium,Therefore,multi-effect evaporation not only significantly reduces the consumption of heating steam,but also significantly reduces the consumption of cooling medium
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