Opposite flow cooling tower برج خنک کننده جریان مخالف
Opposite flow cooling tower
Counter Flow cooling tower is responsible for cooling water by the opposite air flow for spraying and is one of the most common types of cooling tower or cooling tower . It is sprayed down and the air is sucked from the lower part (Louvre) by a suction fan located inside the air intake manifold in the opposite direction of the water flow, and in this face-to-face collision between the air, water droplets gradually collide. They get cooler with the air. Opposite flow cooling tower is considered in the category of open circuit cooling towers or wet cooling tower and has a very high efficiency in heat transfer and lowering water temperature due to opposite weather flow.
In fact, due to the good performance of the reverse flow cooling tower in 80% of industrial and non-industrial uses, this model of industrial cooling or cooling tower is used. Opposite flow cooling tower is generally able to cool the water temperature up to about 3 degrees above the humid ambient temperature, and this feature has actually increased the efficiency of the reverse flow cooling tower. Due to the many advantages of this model of cooling tower in the field of air conditioning and industry, today most of the products of cooling towers and industrial cooling towers are of the opposite flow type.
Opposite flow cooling tower types The type of contact between the weather in the form of reverse current is used in various types of dry CCTV cooling towers, wet open circuit and hybrid cooling tower. On the other hand, the appearance-dependent open-circuit cooling tower depending on the appearance and the water distribution system are also divided into two general categories: cubic and conical (cylindrical), each of which has its own unique application. The body of the reverse flow cooling tower is made of concrete, galvanized sheets and can also be produced and supplied from composite material, fiberglass. Briefly, we can categorize the types of cooling currents of the opposite stream as follows.
Wet open circuit cooling tower
A) Cube Counterflow Cooling Tower:
The most common use in reverse flow cooling tower products is in the cubic structure category. Cube counter-flow cooling tower has an uneven flow between the climate, which has a fixed water spray system with a cubic appearance.
B) Cone Counterflow Cooling Tower:
Round, cylindrical or circular cooling tower is one of the oldest types of countercurrent cooling towers, which is welcomed in most applications related to the condenser cooling system of compression and absorption chillers (in the use of chiller cooling tower ). . The great advantage of reverse cone flow cooling towers is the excellent performance of the aeration system and the proper circulation of air sucked by the fan or the cooling tower impeller .
Dry countercurrent cooling tower
Dry CCTV cooling tower always has a suction or blowing air flow system, which in this type of cooling tower is always in the opposite direction of suction or blowing air to rotate the water inside the coil. This type of cooling tower is used only in specific applications in the industry.
Hybrid CCTV reverse cooling tower
Hybrid or hybrid CCTV cooling tower is one of the most widely used types of counterflow cooling towers that consume very little water in cold and temperate seasons. Hybrid or hybrid cooling towers are very energy efficient and will not be clogged in any way. The highest efficiency in cooling towers of the opposite or heterogeneous current is related to this issue.
Different components of the opposite flow cooling tower 
Alternator: Provides the necessary mechanical force and torque to the impeller
Impeller: Creates a suction flow in the air from the bottom up
Speed reduction : Reduces engine speed to standard fan speed required
Sprinkler nozzle or water dispenser: Water sprayer on packings
Spray branch pipes: water transfer to the nozzle from the inlet of the cooling tower
Belt clamp: Connecting the sprinkler nozzle to the branch pipes
Packings: Compact straw inside the cooling tower
Dew absorber: prevents water droplets from passing to the impeller
Main body and frame: The main structure of the cooling tower skeleton includes the main pillars that support other parts of the body.
Panel: The main retaining wall and the most important part of the cooling tower body
Water storage pan (pan): The place where cold water collects in the cooling tower
Impeller deck: hot and humid saturated air outlet
Maintenance support: The task of maintaining internal parts such as packing and dripper
Engine holder base: Alternator holder
Propeller holder base: Propeller holder chassis and speed reduction system
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