Post on 07-Jun-2022
E 1400v3
Heat pump vacuum evaporator
with forced circulation and external shell and tube
heat exchanger
E 1400v3
Ver. GB 09 Rif. FM 1113 page 2/7
1 Technical characteristics Nominal production of distillate with water: 1400 [l/24h]
Models available: (selection dependent on corrosion resistance)
E 1400v3 AA# (austenitic stainless steel) E 1400v3 FF# (superduplex stainless steel) E 1400v3 HH# (Nickel alloys) E 1400v3 FA# (austenitic and superduplex stainless steel)
Electrical equipment: E 1400v3 ‐‐3 (400 [V] 50 [Hz] 3P) E 1400v3 ‐‐4 (460 [V] 60 [Hz] 3P)
Construction: pre‐assembled single module on a stainless steel frame
Distillate heat exchanger: internal coil
Primary heat exchanger: external shell and tube with forced circulation
Evaporation type: conveyed vacuum flash
Evaporation conditions: absolute pressure 6‐7 kPa temperature 30‐40 [°C]
Distillate temperature: 30‐40 [°C]
Drops separator: demister, grate type with packing elements
Technology of heating/cooling: heat pump
Circulation pump: centrifugal with fluxed mechanical seal
Heat pump compressor : reciprocating scroll type
Refrigeration fluid: R 134a (no impact on the ozone layer)
Cooling of refrigeration fluid: air cooled finned heat exchanger. Optional cold water auxiliary shell and tube heat exchanger
Vacuum system: liquid ejector
Control: automatic, continuous 24/24h 7/7 days by PLC possibility to make remote the functioning state signal starting and shutdown of machine
Operator panel: electronic keypad with digital display
Electrical cabinet rating: IP 54
Noise < 80 [dB(A)]
In compliance with standards: (CE marking)
Machinery Directive Electromagnetic compatibility Electrical safety PED Pressure machinery equipment
2 Nominal performance The data reported in the following table refer to the performances achieved during FAT (Factory Acceptance Test) with clean machine fed with tap water in standard atmospheric conditions. Model E 1400v3 ‐‐3 E 1400v3 ‐‐4
Electrical feed 400 [V] 50 [Hz] 3F 460 [V] 60 [Hz] 3F
Maximum production of distillate with water 1405 [l/24h] ± 10% 1428 [l/24h] ± 10%
Absorbed power in steady state working 9 [kW] ± 10% 11 [kW] ± 10%
Power factor [cosø] 0,9 [cosø] 0,9
Electrical specific consumption per litre of distillate 154 [Wh/l] ± 10% 185 [Wh/l] ± 10%
Produced heat 9 [kW] ± 10% 11 [kW] ± 10%
Maximum air flow of finned heat exchanger 7000 [Nm3/h] ± 10% 8200 [Nm3/h] ± 10%
E 1400v3
Ver. GB 09 Rif. FM 1113 page 3/7
3 Functional description The machine E 1400v3 is an evaporator for the treatment of water based liquids. It uses the combined effect of vacuum and heat pump technology to make water based liquids boil at low temperature (30‐40°C). For component identification refer to figure 1.
Figure 1
The numbers within a circle are the main sensors of the machine. The Roman numerals and the dashed lines indicate the optional components. The numbers near the inlet and the outlets indicate the connection to the process lines.
3.1 Process liquids The liquid to be treated is sucked into the boiling chamber D01 as a result of the vacuum created inside it by the vacuum system. The feed is controlled by the level sensor LS08 which controls the pneumatic valve VP01. The in‐line filter F02 removes coarse materials. The circulation pump G02 draws the liquid from the bottom of the boiling chamber and pumps it through the primary heat exchanger E01. This heat exchanger supplies the heat necessary to boil the liquid. Once heated, the liquid returns to the boiling chamber D01, where, as a result of the vacuum, a portion of the liquid immediately boils (flash evaporation). The vapour rises through the demister in order to damp the droplets. Vapour is condensed against the coil heat exchanger E03. The vacuum system extracts the condensed distillate together with any incondensable gases and sends them to the storage tank D02. The distillate is discharged by overflow, the non condensing gas are vented with the liquid. The concentrate is discharged automatically according to a pre set timer through the valve VP02.
3.2 Vacuum system The vacuum system consists of a centrifugal pump G01 coupled to the ejector S01. The ejector works on the Venturi principle and uses the distillate produced by evaporator as a motor fluid. The efficiency of the vacuum system depends on the temperature of the motor fluid. The opening of the valve EV01 breaks the vacuum inside the boiling chamber.
E 1400v3
Ver. GB 09 Rif. FM 1113 page 4/7
3.3 Heat pump circuit The heat necessary to boil the liquid and the cooling necessary to condense the steam are both supplied by the heat pump circuit. The refrigerating fluid, in the vapour phase, is compressed and heated by the compressor K01. It is then pumped through the primary heat exchanger E01 and it releases part of its heat to the liquid. In this way, the refrigerating fluid cools and starts to condense. The air cooled finned heat exchanger E04 completes the condensation of the refrigerating fluid, any excess heat is released into the environment. The refrigerating fluid, now in the liquid phase, is sent to two expansion circuits. As a result of the pressure of the circuit, the refrigerating liquid reaches the lamination valves TCV01 and TCV02 that expand it. As a result of this expansion, the refrigerating fluid becomes cold and it is able to gain heat from the evaporated liquid. One circuit passes through the coil exchanger E03 in order to condense the vapour produced in the boiling chamber, while the other passes through the coil heat exchanger E04 located within the distillate tank, in order to preserve the efficiency of the vacuum system. The heat pump cycle is complete with the joint of the two expansion branches of the heat pump circuit and the suction of the refrigerating fluid, in the vapour phase, by the compressor.
3.4 Auxiliary liquids Auxiliary liquids are: Antifoam, supplied by the opening of the valves EV05 and EV04 if the optional system III is installed. Tap water, for internal washing of the level controls of the evaporation chamber D01 if the optional system X is installed. Auxiliary water cooling, by means of the exchanger E05 if the optional system VIII is installed.
4 Current equipment (*1) Mark Description
I ‐ Arrangement for level control on the tanks of process liquids: improves the level of automation of the system.
III OM AF F Anti‐foam metering for liquids which produce foam during the treatment.
X OW TW Internal washing of the level switch in the evaporation chamber. *1) See the diagram in the figure 1.
5 Options and Accessories on request (*1) Mark Description
II AS F 2000 AS D 2000 AS C 1000
Storage tanks for process liquids: required to enable continuous processing of waste liquids
IV OC PH D pH adjustment of distillate.
V AM BT D Bactericide metering: removes micro‐organisms in the distillate.
VI OT DP 20 Concentrate transfer: installed when it is required to pump the concentrate to a remote location.
VII OC CN D Distillate conductivity meter for an indirect measure of quality.
VIII OC TP R Auxiliary cooling: for high ambient temperature locations (*2)
IX AT CP 40 Distillate transfer: installed when it is required to pump the distillate to a remote location.
[‐] OW CH Automatic chemical washing system (*2) *1) See the diagram in the figure 1. *2) To be requested in the order.
As regards the automatic chemical washing system OW CH refer to the specific technical report.
E 1400v3
Ver. GB 09 Rif. FM 1113 page 5/7
6 Construction materials INOX 304/L Austenitic stainless steel AISI 304 (EN 1.4301) / AISI 304L
(EN 1.4306) PP Polypropylene
INOX 316/L Austenitic stainless steel AISI 316 (EN 1.4436) / AISI 316L (EN 1.4404)
Cu Copper
INOX 316Ti Austenitic stainless steel AISI 316Ti (EN 1.4581) Al Aluminium
DUPLEX Superduplex stainless steel UNS S32750/UNS S32760 (EN 1.4410/EN 1.4501)
ALLOY C22 Nickel alloy UNS N06022
INOX NiCr High quality alloy austenitic stainless steel UNS N08028 (EN 1.4563)
ALLOY C4 Nickel alloy UNS N06455
Component ID E 1400v3 AA# E 1400v3 FA# E 1400v3 FF# E 1400v3 HH#
Lower wall of evaporation chamber D01 INOX 316/L INOX 316/L DUPLEX ALLOY C22
Dome of evaporation chamber D01 INOX 316/L INOX 316/L INOX 316/L INOX 316/L
Distillate storage tank D02 INOX 316/L INOX 316/L INOX 316/L INOX 316/L
Shell and tube heat exchanger E01 INOX 316/L DUPLEX DUPLEX ALLOY C22
Finned air cooled heat exchanger E02 Cu/Al Cu/Al Cu/Al Cu/Al
Coil heat exchanger E03 INOX 316/L INOX 316/L INOX 316/L INOX 316/L
Coil heat exchanger E04 INOX 316/L INOX 316/L INOX 316/L INOX 316/L
Shell and tube exchanger E05 Cu Cu Cu Cu
Vacuum pump G01 INOX 316/L INOX 316/L INOX 316/L INOX 316/L
Circulation pump G02 INOX 316/L INOX 316/L INOX NiCr ALLOY C22
Liquid type ejector J01 PP PP PP PP
Evaporation chamber level sensors (blades)
LS INOX 316/L INOX 316/L INOX 316/L ALLOY C4
Structure and frame ‐ INOX 304/L INOX 304/L INOX 304/L INOX 304/L
Piping and line parts ‐ INOX 316/L + PP
INOX 316/L + PP
DUPLEX + PP ALLOY C22 + PP
Heat pump piping ‐ Cu Cu Cu Cu
7 Dimensions and clearance zones
[mm] [inch.]
a 1620 63,8
b 1060 41,7
c 500 19,7
d 1000 39,4
e 600 23,6
f 1000 39,4
g 850 33,5
h 3120 122,8
i 2600 102,4
j 2200 86,6
k 1450 57,1
l 850 33,5
m 500 19,7
n 210 8,3 Figure 2
E 1400v3
Ver. GB 09 Rif. FM 1113 page 6/7
8 Dimensions, weight, packaging, storage and handling Type Dimensions [mm] Weight [Kg]
Empty without packaging/steady state with water 1620 x 1060 x 2250 h 640 / 750
Standard packaging (pallet + nylon) 1620 x 1060 x 2250 h 650
Packaging with wooden crate (also with protection bag) 1750 x 1120 x 2450 h 820 If the equipment has to be stored for a prolonged period before the installation it must be kept in the delivery condition, indoor, in a clean, dry area within a temperature range of +5 e +35°C. The evaporator may be handled by pallet truck or lift truck with >1000 mm long forks. Movement with crane requires a sling and load balancer.
9 Working temperature, ventilation and auxiliary cooling The finned heat exchanger of the heat pump system produces warm air which should be evacuated to avoid overheating of the installation site. For this reason it is necessary to provide a suitable ventilation system in order to ensure sufficient air exchange. Such system could be a simple opening to the external ambient, as shown in Figure 2, or suitable conveying or forced ventilation systems. If there isn’t a fit opening in the wall, it is necessary to let a distance of 0,75 m opposite the finned block for guarantee a sufficient air exchange Temp. Working conditions
10÷40 [°C] Normal conditions
0÷10 [°C] Start up allowed only with precautions
40÷45 [°C] It is compulsory to use the optional accessory of auxiliary cooling
>45 [°C] Contact VWS Italia The nominal performances stated in this document are guaranteed with a feed temperature lower than +55°C. The optional auxiliary cooling system has an output thermal capacity of 6 kW (5200 Kcal/h). The pressure drop produced by the system is ~150 kPa. The maximum inlet pressure of cooling water is 300 kPa. The outlet temperature of water is ~40°C. Mains water must be without solvents and/or corrosive substance for preserving the machine components; the use of the distillate is only allowed against permission of the constructor. Using mains water at 15°C the flow rate of cold water required is ~0,21 m3/h. Using cooling tower water at 28°C the flow rate of cold water required is ~0,4 m3/h.
10 Installation requirements The machine has to be installed in a level position in a location that can support the weights listed in section 7. A maintenance and air flow perimeter around the evaporator is required as indicated in section 6. The features of the liquid connections and pipes are hereafter listed. (*1) Description Type ED [mm] (*2) [m] (*3) [m] (*4) [wcm]
1 Liquid to be treated Hose‐adapter 20 10 15 ‐ 6
2 Concentrate discharge Hose‐adapter 20 5 10 ~2,5
3 Distillate discharge Hose‐adapter 20 5 10 ~3 *1) See Figure 1 *2) Maximum distance of the tank. *3) Maximum pipe length. *4) Difference in height / Maximum head.
The machine requires compressed air, dehydrated and without oils, to operate the pneumatic valves. The inlet connection to the pneumatic equipment needs a polyethylene connection tube with external diameter 8 mm. The supply pressure needs to be 600 kPa and the line should be capable of supplying 1 Nm3/h. The machine is planned to work indoors.
E 1400v3
Ver. GB 09 Rif. FM 1113 page 7/7
The electric connection can be accomplished with the supplied cable. It has to be connected to a switch suitably designed by a qualified technician, following the good working regulation and respecting the electric cabinet rating. The nominal total current is 32 A; this value has to be used for cables dimensioning and for upstream protection system of the machine.
11 Environmental Impact Reduction: CO2 emissions Below are the results of our Carbon Footprint study and a comparison with an extreme case of pollution:
kgCO2eq/m3 liquid waste treated 92,46
Percentage of emissions avoided with respect to incineration of the liquid waste ‐92,6%
The first data value represents an average between the various industrial uses considering a use of the machine 24h/d, 330 d/y, for 10 years, road transport of the machinery to 1000 km from production site of the manufacturer and road transport of the chemical products for a distance of 100 km from the customer’s site. The data of the comparison with incineration was weighted on the yield of the machine, i.e., the ratio between the initial liquid waste to be treated and the residual concentrate to be disposed of.
Notes ‐ For details concerning the safety and the installation of the machine refer to the use and maintenance manual. ‐ The data in this document are indicative. Cherith Water reserves the right to change any data without prior notice. The front‐page photograph is neither representative of all versions nor models.