The role of the cooling tower? What is the principle?

The cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to lower the water temperature. Today, I want to introduce to you the role of it and what is its principle? Please follow along with Xiaobian!

effect:

Cooling tower is mainly used in air conditioning cooling system, refrigeration series, injection molding, tanning, foaming, power generation, steam turbine, aluminum profile processing, air compressor, industrial water cooling, etc. The most widely used air conditioning cooling, refrigeration, plastic chemical industry . The specific division is as follows:

A, air temperature adjustment class: air conditioning equipment, cold storage, cold storage, refrigeration, air conditioning, etc.;

B. Manufacturing and processing: food industry, pharmaceutical industry, metal casting, plastics industry, rubber industry, textile industry, steel plant, chemical industry, petrochemical products, etc.;

C. Mechanical operation cooling class: generator, steam turbine, air compressor, hydraulic press, engine, etc.;

principle:

1. There must be a certain amount of surplus energy (20%-25%) in the cooling tower circulating water system. When it is running, it will be concentrated at a certain valve. Over time, these energy will be lost in vain. The external turbine is converted into high-efficiency mechanical energy by using these “rich energy”, so that the cooling tower fan motor can be replaced by 100% for power saving purposes.

2. The key to how the external turbine can achieve the motor drive efficiency is to understand the surplus energy in the design of the cooling tower circulating water system. At the same time, the turbine impeller design is also the key. The composition of the surplus energy is mainly composed of the following six parts:

1) The margin value that must be considered when designing the circulating water system;

2) potential energy utilization of heat exchange equipment;

3) The self-regulating ability of the turbine;

4) kinetic energy conversion efficiency of the circulating water system;

5) The energy consumed by the valve when the valve is not in place.

6) Low flow meets system requirements by combining and re-splitting methods.

3. Cooling tower old tower energy-saving renovation

The cooling tower is driven by the water pump between the cooling tower and the heat exchange equipment. The external turbine uses the backwater pressure energy to convert and drive the turbine to work as a fan. Generally, the energy cooling is carried out according to the three cooling towers. About %, taking into account changes in production demand, the energy-saving retrofit method is: two towers are driven by a turbine, and one tower is driven by a motor in the summer time.

4. Cooling tower new tower design

The work of the external turbine is focused on the return pressure or the return flow to meet the function of the turbine to drive the fan, the law of conservation of energy - how much backflow or pressure conversion = how much fan speed. The external turbine speed is increased or decreased according to the increase or decrease of the system flow. The system has three external turbine cooling towers and three towers for the turbine outlet pipe. The bypass valve is used to adjust the flow and facilitate maintenance.

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