The Nanjing Cooling Tower is a cooling device that sprays circulating cooling water into the packing body to make it directly in contact with the air, and dissipates the carried heat to the atmosphere through evaporation and convection.
The operation of the cooling tower has the following points to note:
1. The speed reducer should always check the oil level of the oil standard. The lubricating oil is recommended to use the 22 to 28 hyperbolic gear oil or the industrial gear oil of 90 to 120, and the oil with high viscosity in the summer. After 20 days of the first run, drain the oil and replace it with new ones.
2. Fans, motors, and reducers must be inspected according to the corresponding product specifications before operation. In particular, the motor wiring should be wired according to the wiring diagram provided by the motor manufacturer. Sometimes the parties indicate inconsistency and may cause wiring errors. Start up after meeting the requirements, start sequence, from low speed to high speed. After the blade angle is installed according to the specified value of the sample, if the high-speed running current exceeds the rated value, stop immediately and contact the manufacturer. The standard for adjusting the fan blade angle to meet the requirements is: A. The height difference Δh between the upper and lower points is obtained by scribing the upper and lower edges of each fan blade at 150 mm from the air cylinder. The difference between the maximum and minimum Δh values ​​of each blade is not allowed. More than 2mm; B, the elevation value of the upper edge of the blade at 150mm from the air cylinder, the difference between the maximum and minimum of each blade elevation value shall not exceed 0.002R (R is the fan radius); C, the motor current is equal to the rated at high speed operation The value is 0.9 to 0.95.
3. If the quality of circulating water or supplementary water is poor, water quality stabilization measures shall be taken, and a side filter shall be provided. If necessary, sterilization and algae removal measures shall be taken.
4. FRP is a combustion body. Therefore, the cooling tower must not use an open flame during maintenance. If an open flame is used, it must take corresponding safety measures, and must be approved by the fire and safety department. There are full-time firefighters and fire-fighting facilities.
First, the effect of the cool water tower
The Liangshui Tower is a structure used by power plants for cold water. The height is generally determined by the size of the power plant. It is a structure for power plants to save water and recycle water. The working principle of the cool water tower: The wind blown in and the water sprinkled from the upper part constitutes convection, the heat source is discharged, and a part of the water evaporates in the convection, taking away the corresponding latent heat of evaporation. Then lower the temperature of the water.
Second, the cool water tower can be divided into two types and operating principles
1. The cooling principle of the open cooling tower is that the circulating water is sprayed onto the glass fiber packing, the water and air contact, the heat exchange, and the air flow in the fan tower The heat flow after heat exchange with the water is taken out and then cooled.
In this kind of cooling method, the initial investment is relatively small, but the operating cost is high (water consumption, power consumption).
2. The cooling principle of a closed cooling tower is, in a nutshell, two cycles: an inner cycle and an outer cycle. Without filler, the main middle part is a copper tube cooler.
1 Internal circulation: docking with policy equipment to form a closed circulation system (the circulating medium is soft water). Cool the policy equipment and bring the heat from the policy equipment out to the cooling unit.
2 External circulation: In the cooling tower, the cooling tower itself is cooled. It is not in contact with the inner circulating water, but the copper tube cooler in the cooling tower is used for heat exchange and heat dissipation. Under this cooling method, the automatic control is performed, and the operation of the motor is set according to the water temperature.
Two cycles, in the case of high ambient temperature in spring and summer, require two cycles to work together. The ambient temperature is not high in autumn and winter, and in most cases, only one internal circulation is required.
The most notable feature of the Liangshui Tower is that it does not require electricity, and the fan rotates automatically, saving 100% of electricity and saving 80% of water.
The packed cooling tower distributes the circulating cooling water that needs to be cooled evenly to the packing. The axial fan of the motor-driven equipment at the top of the tower sucks the cold air from the surrounding environment into the tower, and the cold air and hot water are on the surface of the packing. Mass transfer heat transfer, the purpose of reducing water temperature. The cooling tower has a small contact area between water and air, and the filler has large air resistance, high noise, relatively large energy consumption, high defect rate, large maintenance amount, high repair cost, short service life, high water quality requirement, and cooling. The effect is not ambition.
The cool water tower is a new product of energy saving and consumption reduction, and it is a new technological innovation in circulating water cooling work. It uses the patent invented by the company--the water jet drive fan rotary atomization equipment to replace the filler in the packing cooling tower, the water distribution equipment and the motor and fan at the top of the tower. With the water flow pressure existing in the circulating water system as the power, the reverse thrusting of the water jet atomizing device is automatically rotated, so no power is needed, the power saving is 100%, and the cable and power distribution required for controlling the electric fan are saved. The cost of cabinets, control cabinets, etc. 
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