Industry News-Jiangsu Yunuo Cooling Technology Co., Ltd.

2022.05.30

1. The closed cooling tower is a deformation and development of the traditional cooling tower. It is actually a combination of an evaporative cooling tower, a cooler and a wet cooling tower, it is a horizontal evaporative cooling tower, the process fluid flows through the tube, and the air flows outside the tube, and the two do not touch each other. After the water in the reservoir at the bottom of the tower is extracted by the circulating pump, it is sent to the outside of the pipe to be sprayed evenly. It is not in contact with process fluid hot water or refrigerant and air outside the tube, and it becomes a closed cooling tower, which enhances the heat and mass transfer effect by spraying water. 2. The closed cooling tower is suitable for various cooling systems that require high circulating water quality, and has application prospects in electric power, chemical industry, steel, food and many industrial sectors. On the other hand, compared with the air-cooled heat exchanger, the evaporative cooling tower utilizes the latent heat of evaporation of the water on the lower side of the tube to significantly enhance the heat and mass transfer on the air side, which also has obvious advantages. Closed cooling tower, also known as closed cooling tower, evaporative cooler.

2022.05.30

Spray ventilation unfilled cooling tower

The unique spray nozzle is installed at the upper air inlet at the bottom of the cooling tower. When the hot water passes through the inner swirling vane of the nozzle, the inner swirling flow is formed to form a fine atomized spray, so that the mist exists, and the upward spray is downstream and the downstream is countercurrent for two cooling periods. Uniform atomization without hollowing phenomenon, stable cooling effect, low power consumption, water drift rate of 0.01%, no need for fillers, low cost and long service life.

2022.05.30

Cross Flow Cooling Tower

l, The water is in the packing in the tower, the water flows from top to bottom, and the air flows horizontally from the outside of the tower to the inside of the tower. The two flow directions are vertical and orthogonal to a cooling tower. Commonly used in residential areas with strict noise requirements, it is a cooling cycle tower that is widely used in the air-conditioning industry. Advantages: energy saving, low water pressure, small wind resistance, also equipped with low-speed motor, no dripping noise and wind noise, easy maintenance of packing and water distribution system. 2. According to the shape of the building, multiple foundations can be constructed and placed, and single or multiple cooling towers can be started according to the required water temperature. 3. It should be noted that: the frame needs 40% more heat exchange, and more filler volume is required, the filler is easy to age, the water distribution hole is easy to block, the anti-icing is not good, and the moisture backflow is large. The advantage of a cross-flow tower is the disadvantage of a counter-flow tower.

2022.05.30

What are the types of common cooling towers

1. Counterflow cooling tower 1. The water is in the packing in the tower, the water is from top to bottom, the air is from bottom to top, and the two flow in opposite directions. A cooling tower 2. The counter-current cooling tower has good thermal performance and is divided into three cooling sections: ① From the water distributor to the top of the filler, the water temperature in this section is relatively high, so the heat can still be transferred to the air. ② Filling water and air heat exchange section. ③ The cooling tower fills to the water spraying section of the sump space, and the water is cooled in this section, which is called "tail effect". In northern my country, the water temperature can drop by 1-2°C. To sum up, the counter-current tower is about 20% smaller in packing volume than the cross-flow tower under the same conditions, and the heat exchange process of the counter-current tower is more reasonable and high in cooling efficiency. 3. The water distribution system is not easy to block, the water filling is kept clean and not easy to age, the moisture backflow is small, and the anti-freezing and deicing measures are easier. Multiple units can be combined in design. In winter, the required water temperature and water volume can be combined with a single unit or all fans can be turned off. 4. Easy construction, installation and maintenance, low cost, commonly used in air conditioners and industrial large and medium cooling circulating water.

2022.05.30

General structure of cooling tower

Cooling towers are generally mainly composed of fillers (also known as heat-dissipating materials), water distribution systems, ventilation equipment, air distribution devices (such as air inlet shutters, air guides, and wind bodies), water barriers (or water collectors), water collection tanks ( Different combinations of the above structures can be constructed into different types of cooling towers.

2022.05.30

Corrosion Analysis and Protection of Cooling Towers

The materials of the cooling tower are generally carbon steel, stainless steel and copper. When the carbon steel tube sheet is used as a cooling tower, the welding seam between the tube sheet and the tube is often corroded and leaked, and the leakage will enter the cooling water system. Cause pollution to the environment and waste of materials. When the cooling tower is manufactured, manual arc welding is generally used for welding the tube sheet and the tube. When in use, the tube sheet part is in contact with industrial cooling water, and impurities, salts, gases and microorganisms in the industrial cooling water will cause corrosion to the tube sheet and welds. Studies have shown that industrial water, whether it is fresh water or sea water, will have various ions and dissolved oxygen, among which the concentration of chloride ions and oxygen changes, which plays an important role in the corrosion shape of metals. In addition, the complexity of the metal structure also affects the corrosion morphology.

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The Company is specialized in R&D, production and sales of a variety of water cooling products, such as closed cooling tower, crossflow tower, countercurrent tower, refrigerator, evaporative condenser, etc. In addition, the Company provides consulting of other relevant spare and accessory parts as well as technologies.

CONTACT：Manager Yang

TEL：+86-0510-83399019

TEL：+86-18861546799

ADD： No. 69-2, Beihui Road, Huishan District, Wuxi City

PRODUCTS

YBH combined-flow closed cooling tower
YBF combined-flow closed cooling tower
YBN countercurrent closed cooling tower

YKH square crossflow open cooling tower

YKN square countercurrent open cooling tower

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