1. Principle of Work
SWLN evaporative condenser uses water and air as the cooling medium. There is refrigerant medium or other high-temperature fluid in the tube. The high-temperature medium flows from the upper intake pipe to all heat exchange coils. When it is cooled by air or water, it will flow out through the lower discharge pipe. The circulating water pump leads recycled water from the bottom of the equipment to the top of the heat exchange coil stack, and then the water goes through shower pipe to be evenly sprayed on the surface of the heat exchange coil by the nozzle. After that, the water will flow through all heat exchange coils to the collecting basin for recycling use. Inlets are set up at the bottom of the evaporative condenser, leading the fresh wind go through the bottom of the coils to the entire group of heat exchange spiral coils from axial flow fan. This kind of structure adopts the heat-exchange countercurrent form of wind and water. At the top of the water pipes, there is a highly-efficient water eliminator for reducing the splashing rate of the water.
2. Parameters of SWLN Counterflow Evaporative Condenser (Table 1)
Type | Heat emission under normal operating mode | Propeller fan | Circulating water pump | NH3 filling quantity | Weight | |||||
Quantity | Blowing rate | Power | Quantity | Flow rate | Power | Net weight | Operating weight | |||
KW | M3/h | KW | M3/h | KW | Kg | Kg | Kg | |||
SWL-420N | 420 | 1 | 40000 | 3 | 1 | 45 | 1.5 | 51 | 2272 | 3800 |
SWL-550N | 550 | 1 | 45000 | 4 | 1 | 45 | 1.5 | 64 | 2555 | 4150 |
SWL-620N | 620 | 1 | 65000 | 4 | 1 | 65 | 2.2 | 78 | 2830 | 4900 |
SWL-750N | 750 | 1 | 70000 | 5.5 | 1 | 65 | 2.2 | 88 | 3750 | 5350 |
SWL-860N | 860 | 2 | 40000(2) | 3(2) | 1 | 65 | 2.2 | 102 | 4220 | 6100 |
SWL-920N | 920 | 1 | 80000 | 4 | 1 | 65 | 2.2 | 113 | 4470 | 6900 |
SWL-1050N | 1050 | 2 | 45000(2) | 4(2) | 1 | 100 | 3 | 128 | 5160 | 7200 |
SWL-1150N | 1150 | 2 | 100000 | 7.5 | 1 | 100 | 3 | 141 | 5390 | 7900 |
SWL-1250N | 1250 | 2 | 65000(2) | 4(2) | 1 | 100 | 3 | 153 | 5800 | 9200 |
SWL-1380N | 1380 | 2 | 70000(2) | 5.5(2) | 1 | 100 | 3 | 170 | 6230 | 9700 |
SWL-1490N | 1490 | 2 | 70000(2) | 5.5(2) | 1 | 130 | 4 | 175 | 6600 | 10600 |
SWL-1575N | 1575 | 3 | 50000(3) | 3(3) | 1 | 130 | 4 | 192 | 7120 | 10800 |
SWL-1650N | 1650 | 3 | 50000(3) | 3(3) | 1 | 130 | 4 | 204 | 7990 | 11500 |
SWL-1765N | 1765 | 2 | 78000(2) | 5.5(2) | 1 | 130 | 4 | 219 | 8220 | 11600 |
SWL-1950N | 1950 | 3 | 65000(3) | 5.5(3) | 1 | 170 | 5.5 | 230 | 8776 | 12700 |
SWL-2100N | 2100 | 3 | 75000(3) | 5.5(3) | 1 | 170 | 5.5 | 255 | 9698 | 13200 |
SWL-2200N | 2200 | 3 | 78000(3) | 5.5(3) | 1 | 170 | 5.5 | 261 | 9858 | 13900 |
SWL-2300N | 2300 | 2 | 100000(2) | 7.5(2) | 1 | 170 | 5.5 | 281 | 9870 | 14000 |
SWL-2450N | 2450 | 3 | 78000(3) | 5.5(3) | 1 | 230 | 7.5 | 305 | 10676 | 14600 |
SWL-2650N | 2650 | 3 | 80000(3) | 4(3) | 1 | 230 | 7.5 | 327 | 11468 | 15800 |
SWL-2850N | 2850 | 3 | 85000(3) | 7.5(3) | 1 | 230 | 7.5 | 327 | 11626 | 16000 |
SWL-3120N | 3120 | 3 | 87000(3) | 7.5(3) | 1 | 230 | 7.5 | 392 | 13370 | 17200 |
SWL-3280N | 3200 | 3 | 100000(3) | 7.5(3) | 1 | 230 | 7.5 | 392 | 13500 | 17350 |
3. Advantages
(1) Convenient Maintenance
Humanized design structure with large access door and sufficient inner room, enables maintainers to conveniently conduct inspection and repair work inside SWLN evaporative condenser. In addition, ball cock and dust-gauze can be examined and repaired under online maintenance. Moreover, the same direction of airflow and water flow makes it very convenient to examine and repair nozzles and coils when the machine is running.
(2) Small Floor Space and Low Investment
The evaporative condenser combines the features of traditional condenser, cooling tower, circulating water pump, basin and connected pipes together, so it eliminates the need for the above devices, contributing to small floor space and low investment.
(3) Tilted Collecting Basin for Convenient Cleaning
The bottom of the collecting basin is tilted towards pollutant discharge exit, and the PVC padding heat exchange layer is suspending. These design features can help remove the pollutants and impurities in collecting basin.
(4) Great Heat Exchange Performance
SWLN evaporative condensers adopt the combination of coil(same water flow and airflow direction) and padding to effectively avoid the dry spot and dirt formed on the coil walls. This helps realize high-efficiency heat exchange.
(5) Convenient Transportation and Installation
Our evaporative condensers are easy to transport and install as a result of their standard module transportation and on-site installation.
(6) Low Failure Rate
In addition to high-quality bearings, fans and water pumps have no other wearing parts. Fans adopt direct connection structure and remove rotational losses brought by pulley structure.
(7) Low Operating Cost and Energy Saving
Because of its unique structure, our evaporative condenser offers high thermal performance, low condensing temperature, low water and energy consumption, low noise and maintenance cost.
4. Model Selection Guide
Instructions for Choosing a Right Model
1. Confirm conditions: condensing temperature, wet bulb temperature.
2. Calculate total heat emission amount that goes through system to condensers.
3. Take a reference to Table 2, select heat emission amount correction index.
4. Total amount of heat emission multiplies heat correction index equals to the condensing load during the working conditions.
5. Take a reference to Table 1, select the heat emission amount data which is bigger than or equivalent to the data after correction.
For Example:
1. Conditions: condensation temperature 36 ℃, wet bulb temperature 29 ℃.
2. Total emission amount of ammonia refrigeration system is 930KW. (Compressor cooling capacity + compressor shaft power = total emission amount of heat)
3. Take a reference to table 2, heat correction index is 1.88
4. Calculate the actual load of condensers: 930KW×1.88 = 1748.4 KW
5. Take a reference to Table 1, select SWL-1765N-type evaporative condenser, the heat emission of which is more than 1748.4KW.
R717 Heat Emission Correction Index (Table 2)
Condensing temperature | Air inlet bulb temperature(℃) | ||||||||||||||||
(℃) | 10 | 12 | 14 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |
29 ℃ | 0.96 | 1.07 | 1.16 | 1.28 | 1.34 | 1.45 | 1.55 | 1.76 | 1.93 | 2.16 | 2.50 | 2.95 | 3.40 | - - | - - | - - | - - |
30 ℃ | 0.93 | 1.03 | 1.11 | 1.23 | 1.29 | 1.38 | 1.47 | 1.59 | 1.78 | 1.95 | 2.20 | 2.52 | 2.98 | - - | - - | - - | - - |
31 ℃ | 0.90 | 0.95 | 1.04 | 1.14 | 1.20 | 1.27 | 1.34 | 1.44 | 1.52 | 1.72 | 1.83 | 2.10 | 2.50 | 2.72 | - - | - - | - - |
32 ℃ | 0.80 | 0.90 | 0.96 | 1.07 | 1.13 | 1.18 | 1.25 | 1.32 | 1.43 | 1.52 | 1.68 | 1.83 | 2.06 | 2.25 | 2.67 | - - | - - |
33 ℃ | 0.76 | 0.80 | 0.88 | 0.94 | 1.02 | 1.03 | 1.08 | 1.15 | 1.21 | 1.31 | 1.42 | 1.56 | 1.74 | 1.89 | 2.20 | 2.65 | - - |
34 ℃ | 0.70 | 0.74 | 0.81 | 0.86 | 0.88 | 0.92 | 0.98 | 1.05 | 1.12 | 1.19 | 1.26 | 1.39 | 1.50 | 1.69 | 1.92 | 2.20 | - - |
35 ℃ | 0.68 | 0.72 | 0.78 | 0.83 | 0.86 | 0.91 | 0.95 | 0.99 | 1.02 | 1.15 | 1.23 | 1.31 | 1.37 | 1.53 | 1.66 | 1.88 | 1.97 |
36 ℃ | 0.67 | 0.71 | 0.75 | 0.81 | 0.83 | 0.87 | 0.90 | 0.94 | 0.97 | 1.03 | 1.10 | 1.18 | 1.27 | 1.38 | 1.49 | 1.68 | 1.88 |
37 ℃ | 0.64 | 0.67 | 0.69 | 0.74 | 0.76 | 0.78 | 0.81 | 0.83 | 0.90 | 0.95 | 0.98 | 1.05 | 1.12 | 1.20 | 1.30 | 1.40 | 1.59 |
38 ℃ | 0.61 | 0.63 | 0.66 | 0.71 | 0.74 | 0.76 | 0.79 | 0.81 | 0.86 | 0.90 | 0.94 | 0.99 | 1.05 | 1.12 | 1.21 | 1.31 | 1.44 |
39 ℃ | 0.59 | 0.61 | 0.64 | 0.69 | 0.71 | 0.74 | 0.76 | 0.78 | 0.82 | 0.87 | 0.87 | 0.92 | 0.96 | 1.05 | 1.13 | 1.25 | 1.31 |
40 ℃ | 0.58 | 0.69 | 0.62 | 0.65 | 0.67 | 0.70 | 0.72 | 0.74 | 0.76 | 0.80 | 0.83 | 0.87 | 0.91 | 0.96 | 1.02 | 1.09 | 1.18 |
41 ℃ | 0.54 | 0.57 | 0.59 | 0.63 | 0.65 | 0.67 | 0.69 | 0.72 | 0.74 | 0.77 | 0.80 | 0.83 | 0.86 | 0.92 | 0.98 | 1.02 | 1.11 |
42 ℃ | 0.51 | 0.54 | 0.57 | 0.60 | 0.62 | 0.63 | 0.64 | 0.68 | 0.69 | 0.71 | 0.74 | 0.76 | 0.84 | 0.88 | 0.93 | 0.99 | 1.06 |
5. High Quality Parts
(1) Imported Galvanized Steel Sheet
The shell of SWLN evaporative condenser uses imported galvanized steel sheet, which offers great corrosion resistance, heat resistance and aesthetic appearance. In addition, the galvanized steel sheet lasts 3-6 times longer than ordinary galvanized plates.
6. External Dimensions Data(Table 3)
Type | Dimensions | Compensating water pipe | Drain pipe | Overflow pipe | Air inlet pipe | Water outlet pipe | |||||||
A | B | C | D | E | F | G | H | ||||||
SWL-420N | 1840 | 1920 | 1200 | 2740 | 1500 | 860 | 250 | 3960 | DN25 | DN50 | DN65 | DN65 | DN65 |
SWL-550N | 1840 | 1920 | 1220 | 3020 | 1500 | 1090 | 250 | 4240 | DN25 | DN50 | DN65 | DN80 | DN80 |
SWL-620N | 1840 | 1920 | 1370 | 3250 | 1650 | 1320 | 250 | 4470 | DN25 | DN50 | DN65 | DN80 | DN80 |
SWL-750N | 2390 | 2460 | 1420 | 2790 | 1700 | 860 | 250 | 4210 | DN25 | DN50 | DN65 | DN80 | DN80 |
SWL-860N | 1840 | 3760 | 1420 | 2740 | 1700 | 860 | 250 | 4160 | DN25 | DN50 | DN80 | DN100 | DN100 |
SWL-920N | 3030 | 2460 | 1420 | 2740 | 1700 | 860 | 250 | 4210 | DN25 | DN50 | DN80 | DN100 | DN100 |
SWL-1050N | 1840 | 3760 | 1470 | 3020 | 1750 | 1090 | 250 | 4490 | DN25 | DN50 | DN80 | DN100 | DN100 |
SWL-1150N | 3030 | 2460 | 1470 | 3020 | 1750 | 1090 | 250 | 4490 | DN25 | DN50 | DN80 | DN80(2) | DN100 |
SWL-1260N | 1840 | 3760 | 1470 | 3250 | 1750 | 1320 | 250 | 4720 | DN25 | DN50 | DN80 | DN80(2) | DN100 |
SWL-1380N | 2390 | 3760 | 1520 | 3020 | 1800 | 1090 | 260 | 4540 | DN25 | DN50 | DN80 | DN80(2) | DN100 |
SWL-1490N | 2390 | 4730 | 1520 | 2790 | 1800 | 860 | 260 | 4310 | DN25 | DN50 | DN80 | DN80(2) | DN100 |
SWL-1575N | 1840 | 5475 | 1570 | 3020 | 1850 | 1090 | 260 | 4590 | DN25 | DN50 | DN80 | DN80(2) | DN100 |
SWL-1650N | 2390 | 5475 | 1570 | 2790 | 1850 | 860 | 260 | 4360 | DN25 | DN50 | DN80 | DN80(2) | DN100 |
SWL-1765N | 2390 | 4730 | 1670 | 3020 | 1950 | 1090 | 260 | 4690 | DN32 | DN65 | DN80 | DN100(2) | DN80(2) |
SWL-1950N | 1840 | 5475 | 1720 | 3250 | 2000 | 1320 | 270 | 4970 | DN32 | DN65 | DN80 | DN100(2) | DN80(2) |
SWL-2100N | 2390 | 5475 | 1870 | 3020 | 2150 | 1090 | 270 | 4890 | DN32 | DN65 | DN80 | DN100(2) | DN100(2) |
SWL-2200N | 3030 | 5475 | 1870 | 2790 | 2150 | 860 | 280 | 4680 | DN32 | DN65 | DN80 | DN100(2) | DN100(2) |
SWL-2300N | 3030 | 4730 | 1870 | 3020 | 2150 | 1090 | 280 | 4890 | DN32 | DN65 | DN80 | DN100(2) | DN100(2) |
SWL-2450N | 2390 | 5475 | 1870 | 3250 | 2150 | 1320 | 280 | 5120 | DN32 | DN65 | DN80 | DN100(2) | DN100(2) |
SWL-2650N | 3030 | 5475 | 1870 | 3020 | 2150 | 1090 | 280 | 4890 | DN32 | DN65 | DN80 | DN100(2) | DN100(2) |
SWL-2850N | 3030 | 5475 | 1870 | 3020 | 2150 | 1090 | 290 | 4890 | DN32 | DN65 | DN80 | DN100(2) | DN100(2) |
SWL-3120N | 3030 | 5475 | 1870 | 3250 | 2150 | 1320 | 290 | 5120 | DN32 | DN80 | DN80 | DN100(2) | DN100(2) |
SWL-3280N | 3030 | 5475 | 1870 | 3250 | 2150 | 1320 | 290 | 5120 | DN32 | DN80 | DN80 | DN100(2) | DN100(2) |
We are a professional evaporative condenser manufacturer in China. Our company provides a variety of refrigeration equipment, including evaporative condenser, thermosiphon dry-mode evaporator, closed circuit cooling tower, and much more.
Related Names
Counter Flow Ablate Condensing Facility | Upstream Exhalation Stripper Condenser | Counter-current Transpiration Condenser | Counter-flow Evaporation Condenser