How does closed cooling tower save water?

How does closed cooling tower save water?

Closed-circuit cooling towers are devices that exchange heat through heat transfer. Existing closed-circuit cooling towers often cannot adjust the air intake volume in real time according to factors such as ambient temperature and wind direction. When the ambient temperature is low, a large air intake volume leads to rapid moisture loss, and the exhaust of hot, humid air easily produces white mist. When the air intake surface of the cooling tower is affected by crosswinds, the air intake volume decreases, which is detrimental to heat dissipation. Therefore, there is an urgent need for cooling towers with intelligent air intake systems.

Jiangsu Huata, after numerous experiments, has developed a cooling tower with an intelligent air intake system and obtained an invention patent.

As shown in the figure, a cooling tower with an intelligent air intake system includes a tower body, an intelligent air intake system, and a controller. The tower body has an air inlet surface. The intelligent air intake system is connected to the tower body, and the controller controls its operation. The intelligent air intake system includes an air intake assembly, a temperature sensor, an airflow sensor, and an electromagnetic mechanism. The temperature and airflow sensors are mounted on the cooling tower. The air intake assembly, located at the air inlet surface of the tower body, includes an air intake plate, guide rods, hinges, a support frame, and a sliding cover. The electromagnetic mechanism is mounted on the support frame, and the airflow sensor is connected to it. The sliding cover is mounted on the tower body and has a groove. Guide rods are located at both ends of the air intake plate. The support frame has an inverted U-shaped structure, with grooves on both sides. The guide rods at both ends of the air intake plate are located in the grooves of the support frame, and the guide rods on both sides are located in the grooves of the sliding cover. The guide rods are connected to the air intake plate and the electromagnetic mechanism via hinges.

The intelligent air intake system operates as follows: (1) A temperature sensor senses the ambient temperature, and an airflow sensor senses the airflow at the cooling tower's air intake surface, sending the ambient temperature and airflow values to the controller. When the ambient temperature is above 5°C and the airflow is within a preset range, the controller sends a command to the electromagnetic mechanism. The electromagnetic mechanism drives the movable hinge to move, causing the air intake plate to be in a horizontal position, maintaining horizontal air intake;

(2) A temperature sensor senses the ambient temperature, and an airflow sensor senses the airflow at the cooling tower's air intake surface, sending the ambient temperature and airflow values to the controller. When the ambient temperature is below 5°C and the airflow is within a preset range, the controller... The controller sends a command to the electromagnetic mechanism, which drives the movable hinge to rotate, causing the air intake plate to rotate upwards or downwards by 20-70°, so that the air intake plate is tilted relative to the air inlet surface of the cooling tower, allowing for tilted air intake;

(3) The temperature sensor senses the ambient temperature, and the airflow sensor senses the airflow at the air inlet surface of the cooling tower and sends the ambient temperature and airflow values to the controller. When the ambient temperature is higher than 5°C but the airflow is lower than the preset range, the controller sends a command to the electromagnetic mechanism, which drives the movable hinge to rotate the air intake plate to a horizontal position. Then, the electromagnetic mechanism drives the support to rotate the air intake plate ±30°, allowing for tilted air intake;

(4) Repeat steps (1)-(3).

By controlling the electromagnetic mechanism, the controller can rotate the air intake plate to adjust the airflow at the air inlet surface of the cooling tower. This allows for real-time adjustment of the cooling tower's airflow according to changes in the external environment, achieving energy-saving and environmentally friendly effects.

Figure 1: Schematic diagram of a cooling tower with an intelligent air intake system

Figure 2: Schematic diagram of the cooling tower with intelligent air intake system when the air intake plate is tilted.

Figure 3: Schematic diagram of the cooling tower's air intake plate with intelligent air intake system rotating along the sliding cover.

Figure 4: Enlarged schematic diagram of the cooling tower air intake assembly with intelligent air intake system

The above is information about cooling towers with intelligent air intake systems. If you are interested in this topic or have different opinions, please feel free to contact us. Jiangsu Huata, as a professional provider of cooling systems and services, strives to create value for its customers and make industrial cooling more environmentally friendly.