Soldered

Alfa Laval plate heat exchanger AC30-20EQ conn.2xR1'' solder12mm

Order No.: 156.4273
Manufacturer number: 3288153698
Manufacturer: Alfa Laval

More in this category: Soldered

Loading

One click to the most important information:

Description

Application
Soldered plate heat exchangers are primarily used as evaporators, condensers and oil coolers. In multi-step systems or complex refrigeration circuits they also excel as desuperheaters, super-coolers and economiser. Plate heat exchangers can also be used in reversible refrigeration ...

Application
Soldered plate heat exchangers are primarily used as evaporators, condensers and oil coolers. In multi-step systems or complex refrigeration circuits they also excel as desuperheaters, super-coolers and economiser. Plate heat exchangers can also be used in reversible refrigeration circuits as well as in indirect systems. This wide range of possible applications means that different heat exchanger versions are needed.

Structure
The stainless steel plates are soldered, thus avoiding the need to use seals and large frame. The solder creates a connection between contact points on the plates and seals the package. Soldered Alfa Laval plate heat exchangers are soldered at all contact points to ensure optimal heat transfer and high pressure resistance. The heat exchangers are designed for a long service life. By using almost all of the material for heat transfer, the soldered plate heat exchanger is very compact and lightweight with minimal refrigerant content. Alfa Laval is able to produce custom equipment for specific customer requirements.

Materials
The heat exchangers are manufactured in accordance with the European Pressure Equipment Directive 2014/68/EU. The soldered plate heat exchangers consist of a package of copper and stainless steel 1.4401 plates and connections made from 1.4404. The package is vacuum soldered with copper solder (99.9%).

Function
Soldered plate heat exchangers are generally used in reverse flow refrigeration application in order to achieve maximum heat transfer. All connections are located on one side of the equipment without the need for any special connections being created, thus ensuring simple installation.

Function of the evaporator
The channels produced by the profiles plates are arranged such that flow is the opposite direction to the medium (counter flow principle). The two-phase refrigerant (vapour and liquid) enter the heat exchange at the bottom left. The proportion of gas depends on the operating conditions of the refrigeration system. The liquid evaporates in the channels before the vapours are then superheated (dry evaporation). The refrigerant connections are labelled as S3/S4 in the diagram. The water (brine) flows in the opposite direction in the next channel. The water (brine) connections are labelled as S1/S2.

Function of the condenser
The design is the same as the evaporator.  Hot gas enters the device at the top left. It condenses on the surface of the channels until fully liquified and is then slightly subcooled. This process is known as “free condensation”. The refrigerant connections are labelled as S3/S4 in the diagram. The water (brine) flows in the opposite direction in the next channel. The water (brine) connections are labelled as S1/S2.

X-distributor and Equalancer SystemTM
The distribution systems developed by Alfa Laval ensure excellent cooling performance figures, stable control and good oil return. The two-phase mixture is mixed together by the patented “X” distribution system as it enters the evaporator. This stabilises the flow and increases performance.

show more


Features

Auswahl Verdampfer:

R404A, Verdampfungstemperatur: +2°C, Verflüssigungstemperatur: 45°C;

  • Nennleistung (kW): 7,8
  • Druckabfall p (kPa*): 447

R134a, Verdampfungstemperatur: +2°C, Verflüssigungstemperatur: 45°C;

  • Nennleistung (kW): 6,0
  • Druckabfall p (kPa): 275

R404A, ...

Auswahl Verdampfer:

R404A, Verdampfungstemperatur: +2°C, Verflüssigungstemperatur: 45°C;

  • Nennleistung (kW): 7,8
  • Druckabfall p (kPa*): 447

R134a, Verdampfungstemperatur: +2°C, Verflüssigungstemperatur: 45°C;

  • Nennleistung (kW): 6,0
  • Druckabfall p (kPa): 275

R404A, Verdampfungstemperatur: +2°C, Wassereintrittstemperatur: 12°C, Wasseraustrittstemperatur: 7°C;

  • Volumenstrom (l/h): 1336
  • Druckabfall p (bar): 57

R134a, Verdampfungstemperatur: +2°C, Wassereintrittstemperatur: 12°C, Wasseraustrittstemperatur: 7°C;

  • Volumenstrom (l/h): 1028
  • Druckabfall p (bar): 36

Auswahl Verflüssiger:

R404A, Verflüssigungstemperatur: 40°C, Wassereintrittstemperatur: 35°C, Wasseraustrittstemperatur: 15°C;

  • Nennleistung (kW): 16,0
  • Wasser: 688 (l/h), 16 p (bar)

R134a, Verflüssigungstemperatur: 40°C, Wassereintrittstemperatur: 35°C, Wasseraustrittstemperatur: 15°C;

  • Nennleistung (kW): 15,0
  • Wasser: 645 (l/h), 14 p (bar)

R407C, Verflüssigungstemperatur: 42,5°C, Wassereintrittstemperatur: 35°C, Wasseraustrittstemperatur: 15°C;

  • Nennleistung (kW): 20,0
  • Wasser: 860 (l/h), 24 p (bar)

*100 kPa = 1 bar

show more


Accessories / Replacement parts

  • Armaflex insulation
    Alfa Laval Armaflex insulation Type P f.AC30-20/24EQ
    Order No.: 156.4875

Technical data

Dimensions
Width
93 mm
Height
325 mm
Depth
39 mm
General information
Number of plates
20 pcs
Type
AC30-20EQ
Pressure
max. operating pressure
32/32 bar
primary side / secondary side
S1-S2 / S3-S4
Surfaces
Surface
0,50 m²
Weight
Weight net
2,8 kg
Pipe connections
Refrigeration medium S3/S4
12,7i / 22,2i mm
Cooling medium S1/S2
R 1" Inch
Pipe connection
4
Temperature data
Operating temperature (min. - max.)
-50/+150 °C
Volume
Refrigeration medium
0,252 l
Cooling medium
0,280 l
Technical modifications reserved. Product images may differ from the actual product and are meant for demonstration purposes only. Absolutely no liability can be assumed for possible indication errors and errors in the manufacturers’ information.

Customers also bought...

Loading

Login now for complete access

To login
Article in stock