Evaporative Condenser is widely used in energy chemical industry,Pharmaceuticals coal, electricity, industrial refrigeration, beer,beverage,food processing, the cold storage, the building air conditioning refrigeration,etc
The food industry Chemical medicine
Poultry Slaughtering Plant Inter-cooling of methanol/methanol synthetic ammonia compressor
Multi-purpose cold Storage Syngas cooling condensation
Beer and beverage industry Methanol distillation process cooling condensation
Industrial ice/Skating Rink Gas cooling of natural gas or coke gas exchange process
Ice cream factory Purification process as weoo as cooling condensation
Fish processing industry Steam condensation of turbine,Ethyl acetate condensation
Compared with the traditional condenser,‘HACST’evaporative condenser has the following advantages:
1、Energy Saving
Compared with air cooled condenser, the condensing temperature of evaporative condenser is much lower. Every 1℃ the condensing temperature increased, the power consumption for refrigerating capacity per unit will be increased by 3%~3.5%. So‘HAC’evaporative condenser has better energy conservation effect.
2、Water Conservation
‘HACST’evaporative condenser makes full use of the latent heat from water vaporization, which could reduce the water loss of spraying water effectively. Its very important for the region where lack of water.
3、Compact structure, investment cost low
‘HAC’evaporative condenser has compact structure, small size and less footprint, because its structure equal to one unit that combined condensing coil and cooling tower, no need to equip a cooling tower for it any more.Meanwhile, it effectively reduce the coil heat exchange area, fan quantity and motor power consumption by making full use of evaporative cooling.
4、Environmental-friendly
Many chemical plants use tube and shell type or atmospheric type condenser in the past, and vent depressurization is a way often used in the summer due to its condensing pressure too high, but not all non-condensable gas exhausted, which contains a large amount of ammonia, even high to 90% sometimes according to sampling analysis from relevant departments not only ammonia loss much, but also environmental pollution seriously. But it won’t happen for HACST evaporative condenser.
Working Principle
For ZHX combined flow evaporative condenser, the coil will soaked fully by spraying water when process fluid flows inside, meanwhile, the heat of working fluid will be transferred by wall of coil tube, and become saturated wet-hot vapor after mixed with water and air, then it will be discharged into atmosphere by fan, but water will be collected into water basin by drift eliminator for recycled spraying, low water consumption. The spraying water temperature will be reduced by PVC infill during the recycling, and it flows in same direction to fresh air, to cool coil mainly by sensible heat conduction way.
Advantages:
(1)Excellent Heat Exchange Performance
Parallel air and water path as well as the combination of coils and PVC fill, this effectively avoid the dry spot and scale formation, and improve the heat exchange performance.
(2)Convenient Maintenance
Huge maintenance space makes it convenient to inspect the product. Technicians can enter the cooling tower during operation time.
(3)Convenient Transportation and Installation
The Evaporative condenser is designed to be standard upper body part and bottom body part, making it is able to be shipped separately and saves transportation and installation cost.
(4)Slope Water Basin Design
Suspended PVC fill and sloped water basin floor toward the drain facilitate cleaning.
Selection of Evaporative Condenser
Choosing unstructions
1、Determine the system total calories: total row heat medium = tube condensation latent heat of vaporization + cooling medium heat
2、Determine the design conditions: temperature of import and export, condensation temperature and wet bulb temperature ;
3、Check graph, determine the correction coefficient;
4、Determine the correct row heat: = total heat released by correction coefficient;
5、Choose the evaporative condenser:The heat rejection of the chosen type should no less than corrected heat rejection.
Choosing unstructions
1、Determine the system total calories: total row heat medium = tube condensation latent heat of vaporization + cooling medium heat
2、Determine the design conditions: temperature of import and export, condensation temperature and wet bulb temperature ;
3、Check graph, determine the correction coefficient;
4、Determine the correct row heat: = total heat released by correction coefficient;
5、Choose the evaporative condenser:The heat rejection of the chosen type should no less than corrected heat rejection.
Example
（ammonia refrigeration for example）
1、The ammonia refrigeration system total exhaust heat of 1200 kw. (compressor refrigerating capacity + compressor shaft power = total heat released)
2、Operating condition: condensation temperature of 36 ℃, wet bulb temperature 28 ℃.
3、Check graph 1, correction coefficient is 1.35.
4、Calculate the actual load of the condenser:
1200 KW x l. 35 = 1200 KW
5、Check ZHX graph, choose type of ZHX – 1765, and its heat rejection > 1620 kw.
Instructions for choosing a type
1、The value in the graph are just for reference.
2、The running weight of the table equals the weight of equipment plus the refrigerant and the water in the bottom reservoir.
3、To design and manufacture for client’s special requiremengs if necessary.
4、The heat-exchange quantity of nominal conditions in the sheet refers to the data about condensing temperature(TK)=37℃，air inlet wet blub temperature(TS)=26℃.