Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D1/00—Evaporating
  • B01D1/16—Evaporating by spraying
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D1/00—Evaporating
  • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
  • B01D1/221—Composite plate evaporators
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D1/00—Evaporating
  • B01D1/26—Multiple-effect evaporating
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D1/00—Evaporating
  • B01D1/30—Accessories for evaporators ; Constructional details thereof
  • B01D1/305—Demister (vapour-liquid separation)
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
  • B01D3/06—Flash distillation
  • B01D3/065—Multiple-effect flash distillation (more than two traps)

Definitions

• Fig. 2 shows the arrangement and configuration of various modules of heat exchanger to obtain multiple effects.
• the present invention is directed to providing a novel and unique heat exchanger module and arrangement of various such modules in a specific synergistic way, results in a complete modular heat exchanger assembly.
• Such modular heat exchanger eliminates the use of vapour lines, resulting in better energy efficiency, compactness of size, better economy of construction, transportation and operation .
• the vapour outlet at the entrainment separator portion of the first heat exchanger module of the second evaporator effect operatively becomes the vapour inlet at the plate pack portion of the first heat exchanger module of the third evaporator effect and the vapour outlet at the entrainment separator portion of the second heat exchanger module of the second evaporator effect operatively becomes the vapour inlet at the plate pack portion of the second heat exchanger module of the third evaporator effect and so on.
• the arrangement is used for movement of process liquid and transit of steam or vapours from one end to the other end of the evaporator train to get progressive concentration.
• a direct contact condenser can be installed at the end of this process which eliminates the need of individual condenser for each evaporator effect as in conventional processes.
• the low temperature juice (CJ45) from juice jackets (105) is sprayed over the plate pack ( 101 ) of the first module (A l ) of first effect by spray nozzles ( 103) or other distributing means and collected juice at the bottom of the plate pack (101 ) is again pumped with the help of pump (108) to the juice jackets ( 105) for spraying over plate packs (101) of first module (Al) of first effect for progressive concentration of juice.
• the vapour outlet (VO) of entrainment separator of first module (B l) of second effect is connected with vapour inlet of plate pack of first module (C I ) of third effect.
• the vapour outlet (VO) of entrainment separator of first module (C I ) of third effect is connected to the condenser ( 104) for the final condensation of the vapours.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
• Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

Country Status (1)

Cited By (2)

Family Cites Families (3)

• 2013
  • 2013-07-29 WO PCT/IN2013/000467 patent/WO2014016853A2/fr not_active Ceased

Non-Patent Citations (1)

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