Alfa Laval Triple Effect Plate Evaporator with Thermovapour Recompressor (TVR) comes with the following:
Feed Balance Tank
Feed balance tank capacity 500 L, in SS316, with level switch arrangement. Provided with standard nozzles and outlet valve. Cylindrical with dished bottom and open top complete with
1 No. - Bottom Outlet
1 No. - High and low level switches
3 Nos - Legs with adjustable ball feet
Centrifugal Feed Pump - LKM make
Centrifugal pump, capacity approx 11,000 kg/hr with mechanical shaft seal and electric motor for transferring feed from feed balance tank to EI through the preheaters. The feed pump will be with VFD (Danfoss/ABB/equivalent make). All product contact parts are in SS 316.
Stainless Steel 316 Piping.
To interconnect the various equipment in the plant on a compact layout basis.
Feed flow indicator and control.
To control an accurate feed flow to effect I. It consists of a magnetic flow meter and variable frequency drive.
Preheaters – M6M - 3 Qty
Designed for heating duty. The plate pre-heater consists of gasketed plates. The plate pack is assembled between a frame plate and a pressure plate and compressed by tightening bolts. MOC - Plates SS316, NBR gaskets, frame and tightening bolts MS.
Plate Evaporators - AlfaVap 350 - 3 Qty
Shall be of special design for evaporation duty. The plate evaporator consists of cassette, of welded and gasketed plates. Evaporation will take place in gasketed channels while heating media will flow through welded channels. The plate pack is assembled between a frame plate and a pressure plate and compressed by tightening bolts.
MOC - Plates SS316 , NBR gaskets, frame and tightening bolts MS.
Thermo Vapour Recompressor (TVR) - 2 Qty
These are placed over effect 1. One TVR shall operate while the system is operating at a turned down capacity, while both the TVR’s shall operate while the system operates at 100% capacity. Each TVR is selected to handle the 60% of the capacity individually.
It consists the motive nozzle, discharge nozzle and suction nozzle. The material of construction is SS316.
The make is Mazda / equivalent.
Vapour Separator - 3 Qty
In SS316 construction for effective separation of carry over liquid from evaporated vapours using centrifugal principle.
Unit is provided with following fittings:
1 No. : Tangential Vapour Inlet
1 No. : Vapour Outlet at top
1 No. : Product Outlet at Bottom
1 No. : Sight Glass
1 No. : Light Glass
1 No. : Temperature indicator
1 No. : Pressure indicator
Transfer & Recycle Pumps – LKM make - 5 Qty
Centrifugal pump with mechanical shaft seal and electric motor for transferring feed from one pump to another and recycling the product in each effect. All product contact parts are in SS 316.
Recycle Pump for last effect shall be supplied with VFD.
Product Pump –make Roto
Two stage Screw pump with mechanical shaft seal and electric motor for transferring concentrate from last effect to the battery limit. All product contact parts are in SS 316 and stator in food grade EPDM.
Capacity: Suitable so as to handle Pomegranate as well as Mango at 65 & 21 deg Brix respectively.
Screw Pump shall be supplied with VFD and ON/OFF signal shall be given thru Level Control loop attached to last effect separator.
Surface Condenser – AlfaCond 400
Designed for condensation duty. The plate condenser consists of gasketed plates. The plate pack is assembled between a frame plate and a pressure plate and compressed by tightening bolts.
MOC - Plates SS316 , NBR gaskets, frame and tightening bolts MS
In S.S. 316 for interconnecting various equipment in welded Construction.
Condensate and vent Piping
In SS 316 to interconnect various equipment
Steam Ejector – Mazda / Equivalent.
Two stage steam ejector system with condenser and other peripherals is offered for vacuum generation in the evaporator. The MOC for the ejector system and condensers shall CI/ MS.
Condensate Extraction Pump – LKH10
For extracting out condensate from effect III and the condenser of the evaporation plant complete with electric drive motor, coupling, mechanical seal, cover and base frame.
Steam / Condensate Piping
All piping in M.S. For steam, including control valve with bypass arrangement up to E I and for condensate from each individual effect up to the battery limit point.
Electrical to interconnect equipment in JISL scope within specified battery limits & exclusions. Comprising PVC insulated, Aluminium conductor cables for motive power.
Necessary GI painted perforated cable trays, GI `A' class drop pipes shall be provided. MCC shall also be in JISL scope of supply.
INSTRUMENTATION & CONTROL SYSTEM
1 No Workstation with:
19” LCD Monitor
3 ½ “ Floppy disc drive
CD ROM drive
1.2 GHz with 256 MB RAM
40.0 GB Hard Disc with Windows XP
1 No. Inkjet Printer – Report Printer
PLC Cabinet fabricated out of CRCA and complete with assembled and wired PLC components consisting of :
1 No. Processor module
1 No. Power supply module
1 Set Input / Output module mounting racks
1 Set Analog input modules
1 Set Analog output modules
1 Set Digital input modules
1 Set Digital output modules
1 Set Communication cable
Evaporator will have the following instrumentation for monitoring and control.
Pressure Control Loop (for TVR – Effect 1).
Pressure Sensor / Transmitter
Pressure. Controller (PLC-SCADA)
Steam valves with I/P Convertor
Solenoid valve for supply air pressure cut off.
Feed Flow Control System
Magnetic Flow meter.
VFD for the feed pump.
Concentrate Control System
Mass Flow meters.
Total Solids monitoring and display. (PLC-SCADA)
Steam valves with I/P Convertor on the TVR.
Solenoid valve for supply air pressure cut off.
Level Control loop for last effect
Level Transmitter on last vapour separator
Variable frequency drive for Product Pump
Vacuum Monitoring System (for condenser).
Vacuum Sensor / Transmitter
Vacuum Monitoring and Display. (PLC-SCADA)
Cooling Water valve with I/P Convertor on the condenser.
Pressure Gauge on Steam line
Temp. Gauges at various places
Actuated Butterfly valves on the CIP line to each Vap separator.
Level Switches & 2 Nos 2-way on-off type valve for the feed balance tank.
Motor trip alarm