
Screw
Compressor Package
with electric drive and
horizontal oil separator |
Built
by respective manufacturers:
HOWDEN,
MYCOM, FRICK,
RECO, FES, STAL/ABB, SULLAIR,
GRASSO, HALL, Dunham Bush
rebuilt/reconditioned
by others
Lo
Temperature Applications
Hi Temperature Applications
With / without Economiser
With / without Thermosyphon
Any
Voltage - 50 or 60Cycles |

RPE
Package
screw
compressor, diesel drive
through speed-increaser,
with electric alternator and
a vertical oil separator
(hit picture for enlargement)
Direct Drive |
Special
Assemblies from 2ndH
(reconditioned) components:
Compressors:
HOWDEN, MYCOM, FRICK,
RECO, FES, STAL/ABB, SULLAIR,
GRASSO, HALL, Dunham Bush
Diesel
Engines:
Deutz, Caterpillar
or Buyers' Preference
Alternators:
Buyer's preference
Any
Voltage - 50 or 60Cycles
Alternative
Prime Movers |
|
Compressor
Packages
with shaft-to-shaft or belt drive
(hit picture for another view) |
Built
by respective manufacturers:
SABROE,
GRASSO, MYCOM,
VILTER, HALL, GRAM,
STAL/ABB, HASEGAWA
Single
Stage and Two-stage
Applications
Any
Voltage - 50 or 60Cycles |
| 
RPE
Package
A reciprocating compressor is
primed with a diesel engine over
a manual disengaging clutch on
the flywheel end; an electric alter-
nator is driven off the front end
The
RMPE Set-up |
Special
Assemblies from new or
reconditioned components:
Compressors:
SABROE, GRASSO, MYCOM,
VILTER, GRAM, BOCK
Diesel
Engines:
KHD/Deutz, Volvo Penta,
Daimler Benz, Caterpillar
or Buyer's preference
Alternators:
Buyer's preference
Any
Voltage - 50 or 60Cycles
For
more information:
Alternative
Prime Movers
RMPE
with belt drive |
|
Air
Cooled Condenser
with Liquid Subcooler |
Air
cooled condensers are parti-
cularly suitable for applications in
cold climates. At high ambient
temperatures, they will raise the
discharge pressure on the com-
pressors and increase power
consumption. However, at high
relative humidities (RH), usually
accompanied by high ambient
temperatures, air cooled conden-
sers are sometimes the only
possible solution. |
| 
Evaporative
Condensers |
Evaporative
condensers are
suitable for applications in ambient
temperatures above freezing
point and moderate relative humidi-
ties (RH). At temperatures below
freezing point or extreme relative
humidities, special designs must
be applied.
We can supply at short notice:
BAC, IVECO, EVAPCO
and some other brands
We
can also provide drawings
for local fabrication of evapo-
rative condensers. |
|
Shell
and Tube Condenser |
Shell-and-tube
condensers - hori-
zontal and vertical - are used with
cooling towers or where cold water
(seawater) is in abundance. They
are built to pressure vessels codes
and must be tested and certified.
Shell-and-tube condensers have
become less popular in favour of
air cooled and evaporative con-
densers, which are easier to install
and require less maintenance. |
|
Horizontal
Liquid Receiver |
High
pressure liquid refrigerant
receivers are pressure vessels,
usually with a horizontal shell, and
must be built to pressure vessel
codes, tested and certified. The
picture shows a typical arrange-
ment on a vessel for Refrige-
rant R717 (ammonia), but it can
equally well be fitted for storage
of halocarbon refrigerants (com-
only known as freons). |
|
Pump
Recirculator
with horizontal Liquid Separator |
As
opposed to local thermostatic
expansion or gravity feed of cold
refrigerant from individual liquid
separators (surge drums), pump
recirculators feed the refrigerant
to the evaporators at a positive
pressure, thus better flooding the
inner surface and improving the
heat transfer.
Pump
recirculators can feed many
evaporators simultaneously, how-
ever, all of them operate with the
same evaporating temperature. |
| 
Pump
Recirculator
with vertical Liquid Separator |
Pump
recirculators should be fitted
with at least two liquid pumps, each
of which with sufficient capacity to
serve the plant; whereby one can
be idle at all times (stand-by). Large
recirculators should with preference
have three pumps, two working con-
tinuously and the third one serving
as a stand-by unit.
Sometimes
liquid separators on
pump recirculators are oversized.
Then the
liquid receiver is elimina-
ted and the refrigerant
transferred
directly from the condenser to the
recirculator via a high pressure
float valve. The plants then ope-
rate on socalled critical charge
of the refrigerant. |
|
Air
Cooler for Blast Freezing |
Air
coolers are plate finned or
spiral finned, floor mounted or
ceiling suspended and they can
have horizontal, vertical-up or
vertical-down forced or induced
draft air flow. Rather
than sear-
ching for a 2ndH air cooler with
the right configuration for a pre-
determined shape of a space
to be refrigerated, it can some-
times be easier to find a suit-
able air cooler and shape the
room to fit its configuration.
-60°C
Blast Freezer |
| Amerio
31:
up to 42.000 kg/24h
Amerio 35:
up to 64.000 kg/24h
Amerio
37:
up to 96.000 kg/24h
APV
Amerio 37
Automatic Plate Freezer |
'First
in - first out' principle:
Packages are routed by a con-
veyor from the filler/packaging
equipment to the infeed con-
veyor. A sensing wheel signals
when a complete row of packa-
ged product is in position and
then activates the hydraulic
loader/unloader device. A full
length pusher blade sweeps
the row of packaged product
into the front of the freezer to a
predetermined depth. Succe-
ding rows of unfrozen packages
are loaded into the first station
until it is filled completely. Then
the next freezing station moves
into position for product loading.
When the last station is filled,
the freezer recyclesautomati-
cally; all stationsas a single
unitare lowered to the bot-
tom of the freezer. When the
product in the first station has
had sufficient residence time to
be completely frozen, unfrozen
product entering that station
discharges frozen product
through simple displacement. |
|
Horizontal
Plate Freezer |
Horizontal
Plate Freezers come
in two different executions
with one hydraulic jack on top for
stationary installations, where
headroom is plentiful, and with
two jacks, one on either side, for
seaborne installations (below
deck). Small units operate with
thermostatic expansion of halo-
carbon refrigerants (freons)
sometimes packaged and self-
containedwhereas large free-
zers usually work with gravity
feed or pump recirculation of
Refrigerant R717 (ammonia).
|
| 
Vertical
Plate Freezer |
Vertical
Plate Freezers come
generally with spaces between
the plates for block thicknesses
of 100 mm and 75 mm (about
4" and 3"). They work best with
pump recirculation of Refrigerant
R717 (ammonia, NH3). |
|
The
Principle
of a Spiral Freezer |
For
Spiral Freezers please con-
sult our Web Presentation:
Midgets
Download
Leaflet
There
is a wide variety of 2ndH
spiralswith or without the refri-
gerating equipmentavailable
on the market. |
|
Scale
or Flake Ice Makers |
Extensive
information on ice in
generaland Scale or Flake Ice
in particularcan be found on
our Web Presentation titled:
Do-it-yourself
Block Ice Plants |
| 
Plate
Ice Maker |
Extensive
information on ice in
generaland Plate Ice in parti-
cularcan be found on our
Web Presentation titled:
Do-it-yourself
Block Ice Plant |
|
Tube
Ice Maker |
Tube
Ice Plants are compara-
tively expensive, but have a
low specific power consump-
tion (in kWh per ton of ice).
They are tall and not suitale for
movable installations. Used
and reconditioned Tube Ice
Plants are on 2ndH the market
at greatly reduced prices.
Extensive
information on ice in
generaland Tube Ice in parti-
cularcan be found on our
Web Presentation titled:
Do-it-yourself
Block Ice Plant |
|
A
Typical Pulp Ice Plant |
A
new ice handling concept is
known in the market under diffe-
rent names, depending on who
manufactures the equipment.
To name some; the product is
marketed as Liquid Ice or Fluid
Ice or Gel Ice or Flow Ice or
Slush Ice or Slurry Ice; we have
opted for calling it Pulp Ice.
Pulp
Ice is made by crushing any
kind of ice into a snow-like pulp
and mixing it with water to permit
it to be pumped. It demands ad-
ditional investment, which must
be justified through higher prices
for the product it is used for.
|
| 
Ice
Storage Equipment
and Ice Delivery Systems |
Ice
melts at freezing point (0°C
or 32°F) andin so doingit
draws 80 kilocalories (kcal) or
0,093 kilowatt (kW) from its sur-
roundings for evry kilogram (kg)
that melts away (~144 Btu for
every lbs). If left to itself at am-
bient temperatures above 0°C,
the temperature of the ice will
remain at 0°C until it has melted
away completely. Hence, in an
enclosed and insulated space
without refrigeration, ice will melt
away at a rate equivalent to the
heat losses through the insula-
tion of the space. Consequently,
cooling of an ice storage with no
supporting refrigeration will come
from the ice, which then remains
at 0°C. The absense of refrige-
ration results in reduction of the
ice, while refrigerating the room
would require investment and
operating cost. Scale or Flake
Ice is an exception from this rule;
if kept at temperatures around
or below -20ÁC, this type of ice
will retain certain preferred charac-
teristics; it will stay loose for con-
venient spreading over the goods,
whereas at freezing point it will
stick together and be unpleasant
to use. |