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ISO Multiple Effect Evaporation System For Juice Concentration

Jiangsu Hanpu Mechanical Technology Co., Ltd

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ISO Multiple Effect Evaporation System For Juice Concentration

Country/Region china
City & Province jiangsu
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Product Details

Low price Multi effect Evaporation for Tomato juice concentration, Sausages, Fruit juice concentration

 

Process description – Example Parallel flow principle

The solution enters the evaporator circuit of the first stage. Here it mixes with the circulated solution and is heated in heater H with steam. In the evaporator V1, solvent (water) evaporates while cooling the solution to the boiling temperature. The solution then flows to the second stage, which is operated under reduced pressure and thus at a lower temperature. The vapour generated in the first stage is used as a heating medium for evaporation of the solution in the second stage. This process can be repeated several times depending on the boiling point elevation of the solution and existing frame conditions. The vapour of the last stage is condensed via cooling water. If salt shall be crystallized in the plant, further evaporation concentrates the solution to such an extent that crystals are formed. If desired, the crystals in the suspension can then be separated from the solution and dried.

 

Material process

(1) The raw material is delivered to the front primary preheater by the feed pump through the electromagnetic flowmeter, and then enters the top of the primary effect heater through the liquid distributor for primary falling film evaporation and concentration;

(2) The first effect concentrated liquid is transported to the top distributor of the second effect heater by the first effect bottom material circulating pump for secondary falling film evaporation concentration.

(3) The second effect concentrated liquid is transported to the top distributor of the third effect heater by the second effect bottom material circulating pump for third times of falling film evaporation concentration;

(4) Third effect concentrated liquid discharge, according to the online detection of the hydrometer, real-time detection of the material concentration, if the material concentration reaches the set requirements, it will be interconnected with the discharge valve to open the discharge valve and transport the material to the finished product tank, otherwise, it will open the material circulation valve to make the material recycle into the evaporator again for re evaporation.

 

Steam process

The raw steam enters the primary effect heater for heating evaporation concentration: the secondary steam generated by the primary effect heats the secondary effect, and so on. The secondary steam generated by the third effect enters the end condenser for condensation cooling, and the condensate water is discharged by the condensate pump.

 

Condensate process

The condensate water produced by the primary effect preheating the materials through the water transfer pipe at the bottom of the shell, to save the consumption of raw steam;

The condensate water produced by the secondary and third effect is discharged by the condensate pump, and the discharge has reached zero pollution. The non condensing gas is connected to the end condenser by the non condensing gas pipe and discharged by the vacuum pump.

 

Major Advantages of Multi-effect systems:

Ability to maximize usage of input energy (steam economy)

Reduced energy required to run full system

Reduced condensing load with additional effects (less cooling water needed)

Liquor flow control

Convenient foul condensate collection and processing

Ability to do online cleaning of individual effects

Maximum thermal efficiency with concurrent flow option

 

Performance Comparison for Different Evaporator
ItemSingle effect evaporatormulti-effect evaporatorTVR evaporatorMVR evaporator
Energy consumptionenergy consumption is much higher than others, 1ton water will consume 1Ton steam in theorycomparatively energy conservationBase on traditional multi-effect evaporator, one more effect added, but higher pressure steam driven neededThe most energy saving technology for evaporator, but 10-40kwh power consumption
Floor spaceSmalllargelargesmall
Energy sourcessteam & power, need steam pipe network and boilersteam & power, need steam pipe network and boilersteam & power, need steam pipe network and boiler, need high pressure steam.electricity, don't need pipe network, all the close-loop circulation system
AutomaticitySemi automaticFull automatic operation, continuous evaporationFull automatic operation, continuous evaporationFull automatic operation, continuous evaporation

 

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