Counterflow closed cooling tower

The counterflow closed cooling tower is named for the opposite directions of the refrigerant and heat medium. The spray water is sprayed from top to bottom, while the air flows rapidly from bottom to top. It mainly consists of heat exchange coils, a spray water system, an exhaust system, and a frame shell.

Key words:

Classification:

Counterflow closed cooling tower

Hotline:

Counterflow closed cooling tower

Overview

The counterflow closed cooling tower is a special cooling device characterized by the opposite flow directions of the coolant and the heat medium. This cooling tower sprays water from top to bottom through a spray water system, while air flows rapidly from bottom to top, achieving efficient heat exchange. Its main components include heat exchange coils, spray water systems, exhaust systems, and a frame shell. These components work together to enhance the cooling effect. The cooling tower has a compact structure, stable operation, and is widely used in various cooling applications.

Working Process

►The spray pump draws water from the water tank and pumps it to the upper part of the heat exchange coil, where it is sprayed in a fan shape through nozzles, continuously and evenly covering the outer surface of the pipes, forming a thin water film. Some of this water absorbs heat from the coolant inside the pipes, turning liquid water into vapor. The evaporation carries away heat, cooling or condensing the coolant inside the pipes into liquid form. The un-evaporated spray water falls back into the spray water tank.

►Exhaust system: The fan at the top of the tower is an intake type that draws air from inside the tower and discharges it outside. Cold dry air from outside enters the tower through an air intake grid after filtering out debris. It flows upward from the bottom of the heat exchange coil, carrying away evaporated water vapor, increasing air humidity and temperature before being expelled outside by the fan.

►Inside the spray water tank, a float valve is set up to automatically replenish supply when the water level is low, ensuring a certain water level in the tank.

►Electrical control monitors the outlet temperature of the coolant online and feeds back to the data processing center. Based on the coolant temperature, it automatically controls the start and stop of the spray water pump and fan to achieve energy-saving purposes.

Operating Principle of Counterflow Closed Cooling Tower

►Internal circulation: Circulating water enters the surface cooler after being heated by heat source equipment for heat exchange. The cooled circulating water is then pumped back to the heat source equipment.

►External circulation: Spray water is sent from the tank to the spray system. After being sprayed out, it contacts with the surface cooler for evaporative heat exchange. The humid hot vapor is expelled by the fan, while un-evaporated spray water falls back into the tank and is pumped back to the spray system for recirculation.

Characteristics of Counterflow Closed Cooling Tower

►Compact structure: Compared to crossflow designs, counterflow towers have a more compact structure with more coil heat dissipation area arranged. The system has lower water resistance and is more suitable for cooling projects with small temperature differences and large flow rates, such as those commonly used in steel metallurgy.

►Overall system: It can be configured as dozens of parallel cooling units for applications like blast furnace water-cooled wall circulation; it can also be miniaturized for smaller footprints. With a circulating water pump added, it can be made into an integrated unit for easy mobility.

►Application range: It can be installed on ground level or placed on top of structures or pools with flexible installation positions; compact small devices can also be placed in workshops. Therefore, whether for steel smelting blast furnaces, continuous casting and rolling crystallizers, chemical reactions, single crystal silicon production, heat treatment, air conditioning refrigeration, data centers, or even small high-frequency electric furnace power supplies and induction coil cooling systems, they are commonly chosen.

Our Advantages

Focusing for 21 years; because of our focus, we are professional with rich experience and high quality.

21 patents; backed by patents with reliable technology and excellent performance for stable operation.

Covering an area of 40 acres with strong capabilities as a solid backing for long-term cooperation and worry-free after-sales service.

Product Models and Parameters

AddSales Engineer Enterprise WeChat for free technical documentation

None