
R404a Shell and Tube Evaporator
Heat Exchanger for Industrial Cooling
Dry type spiral baffle plate evaporator, flooded evaporator, built-in oil separator condenser, sea water
condenser, stainless steel heat exchanger, oil cooler
Dry evaporator refrigerant in the heat transfer tube through the cold water in the efficient heat transfer
tube outside the run, so the heat exchanger heat transfer efficiency is relatively low, the heat transfer
coefficient is only about 2 times the heat pipe heat transfer coefficient, but The advantage is easy to
return to oil, control is relatively simple, and the refrigerant charge is about full liquid type unit charge
amount of about 1/2 ~ 1/3 or so.
① refrigerant has a number of processes, such as the end of the cover can not produce a good solution,
so that the liquid into the next process is not uniform distribution, affecting the heat transfer effect;
② There is a leakage problem on the water side. As the outer edge of the baffle and the shell are
generally 1 ~ 3mm gap, there is about 2mm gap between the heat transfer tube and the water leakage.
Practice has proved that water leakage will cause the water side heat transfer coefficient reduced by 20%
to 30%, the total heat transfer coefficient decreased by 5% to 15%.
FULL LIQUID TYPE EVAPORATOR AND CONDENSER EXTERNAL OIL
(DOUBLE CIRCUIT) CAPACITY: 800KW TO 2200KW
Models | QX-800M | QX-950M | QX-1200M | QX-1380M | QX-1600M | Q-1900M | 2200M | ||
Refrigerant R22 (or other environmental refrigerants) | Refrigerate capacity (KW) | 800 | 960 | 1200 | 1380 | 1600 | 1900 | 2200 | |
Heating capacity (KW) | 950 | 1140 | 1400 | 1650 | 2000 | 2380 | 2650 | ||
Wa | m3/h | 138 | 165.5 | 207 | 238 | 276 | 327.5 | 379 | |
Wb | m3/h | 192 | 206 | 259 | 297 | 344 | 400 | 473 | |
Dpn | bar | 0.71 | 0.73 | 0.75 | 0.76 | 0.79 | 0.82 | 0.84 |
Models | QX-800M | QX-950M | QX-1200M | QX-1380M | QX-1600M | QX-1900M | QX-2200M | |
Dimension(mm) | A | 3909 | 3909 | 3909 | 3909 | 4245 | 4245 | 4245 |
A1 | 450 | 500 | 500 | 500 | 500 | 500 | 500 | |
A2 | 360 | 400 | 400 | 400 | 400 | 400 | 400 | |
L1 | 2032 | 2032 | 2032 | 2032 | 2200 | 2200 | 2200 | |
B | 1340 | 1440 | 1470 | 1470 | 1470 | 1570 | 1570 | |
B1 | 690 | 740 | 755 | 755 | 755 | 805 | 805 | |
C1 | 925 | 975 | 1008 | 1008 | 1008 | 1058 | 1058 | |
C2 | 925 | 975 | 1008 | 1008 | 1008 | 1058 | 1058 | |
D1 | 426 | 480 | 480 | 480 | 480 | 530 | 530 | |
D2 | 480 | 530 | 566 | 566 | 566 | 616 | 616 | |
H1 | 300 | 350 | 350 | 350 | 350 | 350 | 350 | |
H2 | 260 | 280 | 280 | 280 | 280 | 350 | 350 | |
Inlet/Outlet (diameter) Connection | a/b(DN) | 150 | 200 | 200 | 200 | 200 | 200 | 200 |
c1-4 (mm) | 35 | 42 | 42 | 42 | 42 | 42 | 42 | |
d1-2(mm) | 92 | 92 | 92 | 92 | 92 | 92 | 105 | |
D3-4(mm) | 67 | 67 | 67 | 80 | 80 | 80 | 80 | |
Corresponding external oil | Volume (L) | 90*2 | 95*2 | 100*2 | 110*2 | 130*2 | 160*2 | 180*2 |
Weight | P (KG) | 1745 | 2006 | 2570 | 2780 | 3140 | 3480 | 3610 |
Notes: Wa water flow capacity of evaporator Wb water flow capacity of condenser Dpn circulating cooling water Refrigerating work position: evaporating temperature 5°C, condensing temperature 34°C, chilled water inlet temperature 12°C and outlet 7°C, cooling water inlet temperature 18°C and outlet 29°C Heating work position: evaporating temperature 4.5°C, condensing temperature 50°C, hot water inlet temperature 40°C and 45°C, heat source water inlet temperature 16°C and 7°C. |
FULL LIQUID TYPE EVAPORATOR AND CONDENSER EXTERNAL OIL
(DOUBLE CIRCUIT) CAPACITY: 2400KW TO 4000KW
Models | QX-2400M | QX-2650M | QX-2900M | QX-3200M | QX-3500M | 3750M | 4000M | ||
Refrigerant R22 (or other environmental refrigerants) | Refrigerate capacity (KW) | 2400 | 2650 | 2900 | 3200 | 3500 | 3750 | 4000 | |
Heating capacity (KW) | 3000 | 3400 | 3750 | 3850 | 4000 | 4350 | 4500 | ||
Wa | m3/h | 413 | 456.5 | 499.6 | 550.6 | 602.3 | 646 | 688.5 | |
Wb | m3/h | 516 | 571 | 624 | 670 | 700 | 750 | 773 | |
Dpn | bar | 0.85 | 0.87 | 0.87 | 0.76 | 0.79 | 0.82 | 0.84 |
Models | QX-2400M | QX-2650M | QX-2900M | QX-3200M | QX-3500M | QX-3750M | Q-4000M | |
Dimension(mm) | A | 4845 | 4845 | 4845 | 4845 | 5035 | 5035 | 5035 |
A1 | 550 | 550 | 550 | 550 | 550 | 550 | 600 | |
A2 | 450 | 450 | 450 | 450 | 450 | 450 | 500 | |
L1 | 2500 | 2500 | 2500 | 2500 | 2690 | 2690 | 2690 | |
B | 1570 | 1570 | 1670 | 1670 | 1670 | 1670 | 1670 | |
B1 | 805 | 805 | 855 | 855 | 855 | 855 | 905 | |
C1 | 1058 | 1058 | 1108 | 1108 | 1108 | 1108 | 1158 | |
C2 | 1058 | 1058 | 1108 | 1108 | 1108 | 1108 | 1158 | |
D1 | 566 | 566 | 616 | 616 | 616 | 616 | 666 | |
D2 | 616 | 616 | 666 | 666 | 666 | 666 | 766 | |
H1 | 420 | 420 | 420 | 420 | 500 | 500 | 550 | |
H2 | 420 | 420 | 420 | 420 | 500 | 500 | 550 | |
Inlet/Outlet (diameter) Connection | a/b(DN) | 250 | 250 | 250 | 250 | 250 | 250 | 300 |
c1-4 (mm) | 54 | 54 | 54 | 54 | 54 | 54 | 54 | |
d1-2(mm) | 105 | 105 | 105 | 105 | 105 | 105 | 105 | |
D3-4(mm) | 80 | 92 | 92 | 92 | 92 | 92 | 92 | |
Corresponding external oil | Volume (L) | 200*2 | 210*2 | 220*2 | 240*2 | 250*2 | 270*2 | 300*2 |
Weight | P (KG) | 3820 | 4255 | 4610 | 5080 | 5550 | 6070 | 6900 |
Notes: Wa water flow capacity of evaporator Wb water flow capacity of condenser Dpn circulating cooling water Refrigerating work position: evaporating temperature 5°C, condensing temperature 34°C, chilled water inlet temperature 12°C and outlet 7°C, cooling water inlet temperature 18°C and outlet 29°C Heating work position: evaporating temperature 4.5°C, condensing temperature 50°C, hot water inlet temperature 40°C and 45°C, heat source water inlet temperature 16°C and 7°C. |
CONDENSER SERIES SINGLE CIRCUIT
CAPACITY: 40RT TO 60RT
Model | Refrig. ton (RT) | Refrig. ton (104kcal/h) | Dimension (mm) | Weight (kg) | Max. water flow | |||||
D | T1 | T | A | C | E | |||||
QXC40S10 | 40 | 15.12 | 273 | 1600 | 1750 | 120 | 273 | 85 | 172 | 31 |
QXC45S10 | 45 | 17.01 | 273 | 1600 | 1750 | 120 | 273 | 85 | 180 | 35 |
QXC50S10 | 50 | 18.90 | 273 | 2032 | 2182 | 120 | 273 | 85 | 209 | 38.5 |
QXC55S10 | 55 | 20.79 | 273 | 2032 | 2182 | 120 | 273 | 85 | 217 | 42.5 |
QXC60S10 | 60 | 22.68 | 273 | 2032 | 2182 | 120 | 273 | 85 | 224 | 46 |
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) | FPT(inner pipe thread) | FPT(inner pipe thread) | |||
QXC40S10 | 3/8 | 1-5/8 | 1-1/8 | 3 | 2-1/2 |
QXC45S10 | 3/8 | 1-5/8 | 1-1/8 | 3 | 2-1/2 |
QXC50S10 | 3/8 | 1-5/8 | 1-1/8 | 3 | 2-1/2 |
QXC55S10 | 3/8 | 1-5/8 | 1-3/8 | 3 | 2-1/2 |
QXC60S10 | 3/8 | 1-5/8 | 1-3/8 | 3 | 2-1/2 |
COMPANY IMAGE
COOPERATED CLENTS
Wuhan Qiaoxin Refrigeration Equipment CO., LTD
WUHAN QIAOXIN REFRIGERATION EQUIPMENT CO., LTD. was founded in 2003, located in Wuhan Hubei
province, which is a professional manufacturing enterprise dedicated to R&D, design, production and
marketing of shell and tube condenser, evaporator and heat exchanger products etc. From the aspect of
technology, QIAOXIN always hold the leading position in domestic market.
QIAOXIN obtained Class I, Class II Pressure Vessel Design License and Pressure Vessel Manufacture
License, owned CNC machining center, CNC tube expander, CNC cutting machine and CO2 Flux Cored Gas
Shielded Welding etc series of advanced production equipments. QIAOXIN have a group of specialized
persons long engaged in the design and production of heat exchangers. Through long terms of technical
research, development and practice, different types and sizes of heat exchanger from design to production,
installation to test, QIAOXIN formed a complete set of management system. The rigorous design and precise
production, makes QIAOXIN can fulfill different operating requirements of customer and provide products
under various working condition. QIAOXIN also passed ISO9001:2008 international quality system certification,
through advanced quality management system strictly to control the whole process of product R&D, design,
production, inspection and service.
“Quality comes first, go for perfect”, after decades of development, QIAOXIN obtained great reputation not
only in domestic market, also spreads well in abroad. Products are exported to Europe and the United States
(owned PED certificate), Southeast Asia, Africa, and all over the country (including the "Midea" "Chigo"
"Dunham-bush" "TICA" and other well-known domestic air conditioning companies).
QIAOXIN always hold a strong sense of mission to the development of Chinese refrigeration technology, using
the most advanced refrigeration technologies, to realize the harmonious coexistence between man and
nature. On the road of development in the future, QIAOXIN will continue to adhere to the harmonious, healthy
and scientific development direction, following with the enterprise concept of "Ethics first, product second",
carrying with full enthusiasm to provide high cost performance products, outstanding product performance
and efficient services for the general customers.