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01 Jun,2024
Introducing the working process of a circular open cooling tower
The hot water autonomous machine room uses a water pump to pressurize the circulating water through pipes, horizontal throats, curved throats, and central throats into the cooling tower's water distribution system. The water is evenly sprayed onto the packing material through small holes in the distribution pipes.
What is a circulating water cooling system?
With the development of urban construction, the circulating water cooling system has become an indispensable part. The system corresponds to refrigeration equipment and includes a cooling tower located on the roof of the podium, circulating water pumps on the second basement level, manual and electric butterfly valves, filters, electronic descalers, and more. The main refrigeration unit is located on the first basement level, sharing the supply and return water mains for cooling water. A drain valve is installed at the low point of the system for emptying and sewage discharge. Considering that sometimes the municipal water pressure on the podium roof is insufficient, a makeup water pump supply system has been added, controlled by the upper and lower water levels in the cooling tower sump to start and stop the pump. Expansion joints are added to the pipeline where it crosses deformation joints. Rigid waterproof sleeves are installed at the wall panels inside the crossover room. Pressure gauges are installed on the pipelines before and after the pumps and chillers. To protect the refrigeration unit, a water flow indicator interlocked with the main unit is installed on its inlet pipe.
Operation and Maintenance of Counterflow Closed-Circuit Cooling Towers
When a closed-circuit cooling tower is in operation, like any other piece of equipment, it requires timely maintenance and upkeep to ensure proper functioning. 1. Electrical System: All motors installed on the counterflow closed‑circuit cooling tower should undergo regular inspection and maintenance, focusing on checking the junction boxes, cables, operating noise, housing temperature, bearings, and current levels. 2. Control Cabinet: Inside the cabinet, regularly inspect for dust accumulation, metal filings, and foreign debris around switches and buttons; verify that wiring connections are secure and free from looseness or disconnection. Additionally, check whether the temperature controller of the Oasis Bingfeng closed‑circuit cooling tower has been exposed to water, and confirm that the contactors operate smoothly and open reliably. 3. Spray Water Tank: Ensure that the internal spray water is cleaned and replaced weekly to prevent prolonged use without replacement. Since the spray water is a consumable resource, H₂O continuously evaporates while dissolved ions remain trapped inside, causing their concentration to steadily rise. When this concentration exceeds the saturation point, crystallization may occur.
Classification of Closed-Circuit Cooling Towers
Based on the relative orientation of water flow and airflow, closed cooling towers can be classified as: counterflow closed cooling towers, crossflow closed cooling towers, and mixed-flow closed cooling towers. According to the material of the tower shell, they can be categorized as: galvanized steel plate closed cooling towers, aluminum‑zinc coated plate closed cooling towers, stainless steel closed cooling towers, FRP (fiberglass reinforced plastic) closed cooling towers, and others. Depending on the heat exchanger material, they are further divided into: copper‑tube closed cooling towers, stainless steel tube closed cooling towers, carbon steel tube closed cooling towers, titanium tube closed cooling towers, aluminum tube closed cooling towers, and more. By fan type, closed cooling towers can be classified as: induced‑draft closed cooling towers and forced‑draft closed cooling towers.
The cooling effect of the cooling tower is poor, which may be caused by the following reasons?
A cooling tower is an industrial cooling device primarily used for cooling and temperature reduction in industrial production. If your cooling tower is not cooling effectively, it may be due to one of the following reasons.
Potential Issues Encountered During the Use of Composite Flow Cooling Towers
An important feature of the working principle of the hybrid flow (also known as mixed flow) closed cooling tower is to maximize the suppression of scale formation on the outer wall of the coil. What issues need to be noted when the hybrid flow closed cooling tower is paused or undergoing maintenance?