triple effect evaporator
The three effect evaporation system is a series evaporation device that uses the secondary steam from the previous effect as the heating steam for the next effect. In evaporation production, the output of secondary vapor is relatively large and contains a large amount of latent heat, so it should be recovered and utilized. If the secondary vapor is passed into the heating chamber of another evaporator, as long as the operating pressure and boiling point of the latter are lower than those in the original evaporator, the introduced secondary vapor can still provide heating. This operation method is called multi effect evaporation. Each evaporator in multi effect evaporation is called a single effect. Any evaporator that introduces heating steam is called a first effect, an evaporator that uses secondary steam from the first effect as a heating agent is called a second effect, and so on.
Working principle
A three effect evaporator is an evaporation system that operates in series with several single effect evaporators, allowing the steam heat energy to be utilized multiple times, thereby improving the utilization rate of heat energy. It is commonly used for the treatment of aqueous solutions. In the process of triple effect evaporation operation (as shown in the figure), the first evaporator (referred to as the first effect) uses steam as heating steam, while the other two (referred to as the second and third effects) use the secondary steam from the previous effect as heating steam, thereby significantly reducing the amount of steam used.
Characteristics of Three Effect Evaporator
One effect, two effect, three effect heaters, one effect, two effect, three effect separators (vapor-liquid separation, crystallizer), preheaters (final effect steam, coil preheating or tube preheating), condensers, condensate storage tanks, vacuum pumps, circulation pumps (feeding), forced circulation pumps, condensate pumps, crystallization (thickening) kettles, spinning devices, mother liquor tanks, centrifuges, electrical instrument controls and valves, pipelines, etc.
Evaporation characteristics
The advantages of high heat transfer coefficient, high evaporation intensity, and prevention of wall formation and pipe blockage are particularly suitable for materials that produce crystals during the evaporation process.
The separator is equipped with a special foam removal device, which can avoid material running, flushing, and liquid foam entrainment.
Configurable online cleaning system, scheduled non-stop cleaning of heating tubes.
Paired with our patented products, it can achieve a crystal solid content of up to 70%.
DTB or OSLO separation structure effectively separates clear and turbid liquids, completely avoiding crystal particles from entering the heat exchange tube.
It can achieve fully automatic control.
Technical Parameter
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Model
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8000 type
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user
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Changzhou
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Sector
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high-salt wastewater
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Design processing capacity
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≥8t/h
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Feed concentration
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18.5%
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Discharge concentration
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Supersaturation zone crystallization
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Heating form
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steam
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Equipment material
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Titanium material+2205
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