Tube Shell Type Water Cooled Heat Exchanger
Evaporator for Screw Chiller
The refrigerant is completely evaporated in the tube and overheated to become a superheated gas, which
facilitates the automatic adjustment of the supply volume using the thermostatic expansion valve.
The refrigerants commonly used are R22, R134a, R407C, R410A and the like. Because the refrigerant
tube evaporation, as long as the tube flow rate of more than 4 m / s, you can put the tube of lubricants
back to the compressor, back to the oil convenient.
In the design, the shell side adopts the E-type structure (baffle type) specified by GB151 or TEMA. The
size of the baffle plate is 15% ~ 50% of the gap according to the physical properties of the refrigerant and
the flow rate. , The flow rate of the baffle notch is approximately equal to the flow rate of the refrigerant in
the transverse direction of the refrigerant. In order to ensure the heat transfer effect, the gap between the
baffle and the cylinder is smaller than or equal to GB151 or TEMA The minimum clearance, especially in
the case of low temperature, these gaps are particularly important, because in low temperature, the
refrigerant is generally high viscosity fluid, slow flow, thermal resistance is relatively increased, the gap
leakage is more obvious, so low temperature The case of the control of the gap must be more stringent.
The heat transfer tube adopts the internal strengthening and efficient heat transfer tube.
The inside of the heat transfer tube adopts the spiral groove type. Generally, there are 32 to 75 trenches,
which are mainly used to enhance the heat transfer effect inside the tube. But also do the corresponding
strengthening, the heat transfer tube according to the different refrigerant can be used copper T2, high
phosphor copper TP2, nickel copper BFe10-1-1, tin copper HSn70-1, aluminum and copper HA177-2 and
other materials.
The heat transfer tubes and tubesheets are generally connected by means of expansion joints. A set of
dispensers are normally provided at the inlet of the refrigerant for the equal distribution of the gas-liquid
mixture.
The dry evaporator is generally suitable for use in compressor refrigeration systems with displacement
less than 2000 m3 / h , It is preferable not to use this type of evaporator due to the uneven distribution of
the refrigerant in the large-scale system.
STRAIGHT SINGLE SERIES DRY SPIRAL BAFFLE PLATE EVAPORATOR
CAPACITY: 750KW TO 1500KW
Models | RE750S14 | RE900S16 | RE1100S16 | RE1240S20 | RE1360S20 | RE1420S20 | RE1500S20 | ||
Rated data Refrigerant R22 ti=12°C te=2°C tu=7°C Dts=5°C | Qn | KW | 750 | 900 | 1100 | 1240 | 1360 | 1420 | 1500 |
Kcal/h(×103 ) | 700 | 862 | 983 | 1076 | 1169 | 1258 | 1367 | ||
Wn | m3 /h | 121 | 141 | 168 | 230 | 252 | 261 | 289 | |
Wm | m3 /h | 136 | 158 | 176 | 261 | 275 | 309 | 328 | |
Dpn | bar | 0.48 | 0.54 | 0.48 | 0.40 | 0.46 | 0.49 | 0.58 |
Models | RE750S14 | RE900S16 | RE1100S16 | RE1240S20 | RE1360S20 | RE1420S20 | RE1500S20 | |
Dimension(mm) | A | 170 | 170 | 170 | 190 | 190 | 190 | 190 |
B | 377 | 426 | 426 | 480 | 480 | 480 | 480 | |
C | 3000 | 2860 | 3000 | 2860 | 2860 | 3000 | 3500 | |
D | 460 | 530 | 530 | 600 | 600 | 600 | 600 | |
E | 400 | 450 | 450 | 500 | 500 | 500 | 550 | |
F | 3086 | 2984 | 3124 | 2984 | 2984 | 3124 | 3624 | |
Vent | S1 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 |
Outlet | S2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 |
Connection | W(DN) | 150 | 150 | 150 | 200 | 200 | 200 | 200 |
D1(mm) | 42 | 42 | 42 | 54(2) | 54(2) | 54(2) | 54(2) | |
D2(mm) | 92 | 92 | 92 | 108 | 108 | 108 | 108 | |
P(kg) | 706 | 753 | 808 | 863 | 921 | 992 | 1069 | |
Qn-rated refrigerating capacity Wn-cooling water flow Wm-maximum cooling water flow Dpn-pressure drop of recirculating cooling water Dts-overheat temperature |
U SHAPED TUBE DRY EVAPORATOR (SINGLE CIRCUIT)
CAPACITY: 120KW TO 270KW
Models | QXU120S8 | QXU135S8 | QXU155S8 | QXU185S10 | QXU220S10 | QXU270S10 | ||
Rated data Refrigerant R22 ti=12°C te=2°C tu=7°C Dts=5°C | Qn | KW | 120 | 135 | 155 | 185 | 220 | 270 |
Kcal/h(×103 ) | 103.2 | 116 | 133.3 | 159 | 180 | 232 | ||
Wn | m3 /h | 20.3 | 23.2 | 26.7 | 31.8 | 37.8 | 46.4 | |
Wm | m3 /h | 25 | 28 | 30 | 41 | 43 | 65 | |
Dpn | bar | 0.41 | 0.44 | 0.37 | 0.36 | 0.43 | 0.42 |
Models | QXU120S8 | QXU135S8 | QXU155S8 | QXU185S10 | QXU220S10 | QXU270S10 | |
Dimension(mm) | A | 1815 | 2115 | 2315 | 2320 | 2654 | 2654 |
B | 219 | 219 | 219 | 273 | 273 | 273 | |
C | 180 | 180 | 180 | 200 | 234 | 234 | |
D | 1530 | 1830 | 2030 | 2000 | 2280 | 2280 | |
E | 240 | 240 | 240 | 300 | 300 | 300 | |
Vent | S1 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 |
Outlet | S2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 |
Connection | W(DN) | 80 | 80 | 80 | 100 | 100 | 100 |
D1(mm) | 35 | 35 | 35 | 35 | 35 | 35 | |
D2(mm) | 54 | 54 | 67 | 67 | 80 | 80 | |
P(kg) | 145 | 155 | 163 | 232 | 279 | 289 | |
Qn-rated refrigerating capacity Wn-cooling water flow Wm-maximum cooling water flow Dpn-pressure drop of recirculating cooling water Dts-overheat temperature |
CONDENSER SERIES SINGLE CIRCUIT
CAPACITY: 40RT TO 70RT
Model | Refrig. ton (RT) | Refrig. ton (104kcal/h) | Dimension (mm) | Weight (kg) | Max. water flow | |||||||
D | T1 | T | A | C | E | H1 | H2 | |||||
QXC40S10A | 40 | 15.12 | 273 | 1600 | 2053 | 120 | 360 | 150 | 350 | 240 | 204 | 31 |
QXC45S10A | 45 | 17.01 | 273 | 1600 | 2053 | 120 | 360 | 150 | 350 | 240 | 212 | 35 |
QXC50S10A | 50 | 18.90 | 273 | 2032 | 2485 | 120 | 360 | 150 | 350 | 240 | 240 | 38.5 |
QXC55S10A | 55 | 20.79 | 273 | 2032 | 2485 | 120 | 360 | 150 | 350 | 240 | 249 | 42.5 |
QXC60S10A | 60 | 22.68 | 273 | 2032 | 2485 | 120 | 360 | 150 | 350 | 240 | 256 | 46 |
QXC65S10A | 65 | 24.57 | 273 | 2032 | 2485 | 120 | 360 | 150 | 350 | 240 | 264 | 49.2 |
QXC70S10A | 70 | 26.46 | 273 | 2032 | 2485 | 120 | 360 | 150 | 350 | 240 | 270 | 53.5 |
Model | S (Vent) | P (fluoride inlet) Copper pipe diameter (inch) | L(fluoride outlet) Copper pipe diameter (inch) | W (standard port) | W (optional port) |
FPT(inner pipe thread) | Male flange | Male flange | |||
QXC40S10A | 3/8 | 1-5/8 | 1-1/8 | DN65 | DN65 |
QXC45S10A | 3/8 | 1-5/8 | 1-1/8 | DN65 | DN65 |
QXC50S10A | 3/8 | 1-5/8 | 1-1/8 | DN65 | DN80 |
QXC55S10A | 3/8 | 1-5/8 | 1-1/8 | DN65 | DN80 |
QXC60S10A | 3/8 | 1-5/8 | 1-3/8 | DN65 | DN80 |
QXC65S10A | 3/8 | 1-5/8 | 1-3/8 | DN65 | DN80 |
QXC70S10A | 3/8 | 2-1/8 | 1-3/8 | DN80 | DN80 |
COOPERATED CLENTS