Desuperheater Water Heater

Manor desuperheater water heater is a unique heat exchanger that generates hot water/ fluid to the maximum temperature of 80℃. The water / fluid can be heated by recovering the superheat of the refrigerant gas which is otherwise wasted to the atmosphere through air/ water cooled condensers. The heat is recovered with almost zero operating cost.

Desuperheater Operation:

Compressor Type Discharge Temperature
Screw (Indirect cooled) 70 to 80℃
Screw (Injection cooled) 50 to 60℃
Reciprocating 85 to 110℃
Boosters (Rotary & Reciprocating) 75 to 85℃

In a usual AC & R system, the refrigerant temperature rises in tune of 80℃ to 120℃ after compression. The refrigerant is further put to the air/ water cooled condenser to condense near about 40℃.

While the condensing of refrigerant in the condenser, the total heat contained in this high Temperature/high pressure gas gets wasted to the atmosphere.

This superheat of the gas which is part of the total heat content of the gas, has a substantial heat potential provided the same is reclaimed efficiently and is optimized for energy saving

Manor Desuperheater Water Heater is the ultimate accessory for an AC & R plant that can be used to remove superheat of the refrigerant.

Desuperheater Design:

Double Walled " Tube in Tube ", vented, counter flow heat exchanger. Vent tube having serrations on inner & outer surfaces to avoid cross contamination of refrigerant and water/ fluid. Each tube has a tube inside that allows water/ fluid to travel in an opposite direction.

Desuperheater Installation:

The Desuperheater Water Heater is installed before the condenser and the oil separator. The refrigerant travels through the series of tubes in the Desuperheater before entering the condenser. Normally the Desuperheater Water heater is designed considering the hot water requirement for the processes. When needs of hot water & refrigeration are not simultaneous, a " Recirculation " type system is provided wherein hot water is generated, stored & maintained in an insulated tank. This hot water then can be utilised as and when required.

The Desuperheater water heater can be easily retrofitted on reciprocating, scroll or screw type chillers.

Desuperheaters Types :

Freon Desuperheater - SERIES HEF 33- XXX- 22 :
Dimensions
Models System TR Width mm Length mm Height mm Gas pipe Inlet & Ootlet Size Water pipe Inlet & Ootlet Size Weight Kg
HEF 33-10-22 10 70 1240 660 1 1/8" 1 1/8" 36
HEF 33-20-22 [M] 12 120 1295 462 1 5/8" 1 5/8" 55
HEF 33-30-22 [M] 18 170 1295 462 2 1/8" 2 1/8" 82
HEF 33-40-22 [M] 24 225 1295 462 2 1/8" 2 1/8" 82
HEF 33-30-22 30 170 1295 660 2 1/8" 2 1/8" 109
HEF 33-50-22 [M] 30 273 1295 462 2 1/8 " 2 1/8 " 137
HEF 33-60-22 [M] 36 323 1300 462 2 5/8" 2 5/8" 164
HEF 33-40-22 40 225 1295 660 2 1/8" 2 1/8" 145
HEF 33-70-22 [M] 42 374 1300 462 2 5/8" 2 5/8" 191
HEF 33-80-22 [M] 48 425 1300 462 2 5/8" 2 5/8" 218
HEF 33-50-22 50 273 1300 660 2 1/8 " 2 1/8 " 182
HEF 33-90-22 [M] 56 480 1300 462 2 5/8 " 2 5/8 " 246
HEF 33-100-22 [M] 60 530 1300 462 3 1/8 " 3 1/8 " 273
HEF 33-60-22 60 323 1300 660 2 5/8 " 2 5/8 " 218
HEF 33-110-22 [M] 66 580 1300 462 3 1/8 " 3 1/8 " 300
HEF 33-70-22 70 374 1300 660 2 5/8 " 2 5/8 " 255
HEF 33-120-22 [M] 72 630 1300 462 3 1/8 " 3 1/8 " 327
HEF 33-130-22 78 680 1300 462 3 5/8 " 3 5/8 " 354
HEF 33-80-22 80 425 1300 660 2 5/8 " 2 5/8 " 290
HEF 33-140-22 [M] 84 730 1300 462 3 5/8 " 3 5/8 " 382
HEF 33-150-22 [M] 90 780 1300 462 3 5/8 " 3 5/8 " 409
HEF 33-90-22 90 480 1300 660 2 5/8 " 2 5/8 " 328
328HEF 33-160-22 [M] 96 830 1300 462 3 5/8 " 3 5/8 " 437
HEF 33-100-22 100 530 1300 660 3 1/8 " 3 1/8 " 364
HEF 33-170-22 [M] 102 880 1300 462 3 5/8 " 3 5/8 " 458
HEF 33-180-22 [M] 108 930 1300 462 3 5/8 " 3 5/8 " 491
HEF 33-110-22 110 580 1300 660 3 1/8 " 3 1/8 " 400
HEF 33-120-22 120 630 1300 660 3 5/8 " 3 5/8 " 436
SERIES HEF 33- XXX- 22 : CONSTRUCTION DETAILS :
TESTING PRESSURES
DESIGN Double walled “ Tube in Tube “, vented, counter flow heat exchanger. Vent tube having serrations on inner & outer surface
MATERIAL OF CONSTRUCTION
HEADERS Seamless MS/ Cast Steel/ SS 304
WATER PIPES Copper
VENT TUBE & GAS PIPE SS 304/ Copper
INSULATION 1 " Fiber Glass/ Glass Wool Insulation/ Rubberised foam "
CLADDING ASTM A 351, Gr. CF8M
END CONNECTIONS Flanged Ends as per ANSI B16.5, Class 150
GAS LINE 24 kg/ cm2
WATER LINE 10 kg/ cm2
MOUNTING POSITION Vertical & in Upward Direction
RECOVERABLE SUPER HEAT FROM R-22 SYSTEMS :
Condensing Temperature °C Estimated Discharge Temperature °C Recoverable Heat Kcal/ hr/ kw
46 82 1875
43 77 1700
31 71 1650
35 66 1500
AMONIA DESUPERHEATER - SERIES HEA 77- XXX- 717 :
Dimensions
Models System TR Width mm Length mm Height mm Gas pipe Inlet & Outlet Size Water pipe Inlet & Outlet Size Weight Kg
HEF 77-15-717 15 95 1750 400 1 1/4" 5/8" 30
HEF 77-25-717 25 95 1750 700 1 1/4" 5/8" 50
HEF 77-50-717 50 180 1750 700 2" 3/4" 75
HEF 77-75-717 75 265 1750 700 2 1/2" 3/4" 100
HEF 77-100-717 100 345 1750 700 2 1/2" 1" 125
HEF 77-125-717 125 425 1750 700 3 " 1 " 150
HEF 77-150-717 150 510 1750 700 3" 1 1/4" 175
SERIES HEF 33- XXX- 22 : CONSTRUCTION DETAILS :
TESTING PRESSURES
DESIGN Double walled " Tube in Tube ", vented, counter flow heat exchanger. Vent tube having serrations on inner & outer surface
MATERIAL OF CONSTRUCTION
HEADERS Seamless MS/ SS 304
WATER PIPES SS 304/ SS 316L
VENT TUBE SS 304/ SS 316L
GAS PIPE MS/ Carbon Steel
INSULATION 1" Fiber Glass/ Glass Wool Insulation/ Rubberised foam
CLADDING ASTM A 351, Gr. CF8M
END CONNECTIONS Flanged Ends as per ANSI B16.5, Class 150
GAS LINE 24 kg/ cm2
WATER LINE 10 kg/ cm2
MOUNTING POSITION Vertical & in Upward Direction
RECOVERABLE SUPER HEAT FROM R-22 SYSTEMS :
Condensing Temperature °C Estimated Discharge Temperature °C Recoverable Heat Kcal/ hr/ kw
43 114 1990
41 104 1800
38 99 1730
35 91 1525
32 86 1450