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There is a large height difference between the air inlet and the air outlet, so it is not easy for the air to flow in and out, and the temperature of the intake air can be lower. The heat exchange power of the countercurrent tower is high. The air inlet louvers of the closed cooling tower can be arranged along the circumference or around it, so the air inlet is more uniform and the cooling effect is good. On the external dimensions, the diameter of the circular tower is larger than that of the square tower with the same function, and the side length is also larger. For these reasons, the application of the circular tower that is constrained by the area is affected. When the direct cooling beam of the closed cooling tower fill block has a small support, the supporting beam should have a small width, and the structure and ventilation resistance should be small. The beam spacing should be equipped with a simple support lining plan. When the grid is supported, the span of the grid simply supported and the span of the support beam should be together, and the grid corrosion function should be compatible with the fill. The fill function and thermal function should be combined with the general comments of the fan function, and the cooling capacity should be selected under the same planning conditions. For film packaging, when the combination of the same type of paper and the height are different, it should be calculated. When the planned temperature difference is large, a larger p...

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The main parameters affecting the selection of closed cooling towers are as follows: Cooling water quantity Q (m / h): When selecting a cooling tower, the calculated cooling water quantity must be multiplied by an appropriate (usually 1.1 ~ 1.3) coefficient. Inlet water temperature t (℃): Standard design conditions for civil cooling towers are: inlet water temperature 37 ℃, outlet water 32 ℃, temperature difference between inlet and outlet water is 5 ℃; industrial cooling tower design conditions are generally 65 ℃ ~ 45 ℃, 43 ℃ ~ 33 ℃, 40 ℃ ~ 32 ℃, etc., the temperature difference between the inlet and outlet towers can reach 8 ℃ -20 ℃. Outlet water temperature t (° C): The difference between the temperature of the cooling tower inlet water and the outlet water temperature is generally called the cooling range, which mainly depends on the wet bulb temperature of the surrounding air. The cooling water effectiveness of a cooling tower is measured by the difference between the temperature of the effluent and the temperature of the wet bulb, or a close value. Therefore, changes in the local wet bulb temperature directly affect the cooling effect of the cooling tower. Wet bulb temperature o (° C): Wet the gauze on the thermometer with wet gauze, and immerse the lower end of the gauze in a water-filled container to become a wet bulb thermometer. Place the wet bulb thermometer in a ventilated place to allow continuous air circulation. At this time, the thermometer reads the wet bu...

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Because the cooling water mostly contains calcium, aluminum ions and acid carbonates. When cooling water flows through the stainless steel to passivate, there is conversion of carbonate. In addition, the oxygen dissolved in the cooling water can cause metal corrosion and rust. Due to rust, the actual effectiveness of heat transfer in closed cooling towers is reduced. When it is more serious, it is unavoidable to spray cooling water outside the casing, and when the scale is more serious, the water pipe is blocked, so that the actual effect of heat transfer is ineffective. Scientific research data show that the damage of dirt alluvium to heat transmission is very harmful, and the rise of the alluvium will lead to an increase in electricity and energy costs. Even a thin layer of dirt will increase the operating cost of about 40% of the dirt in the machinery and equipment. Maintaining water-cooled safe passages that can contain mineral alluvial materials can rise well, save resources, increase the life of machinery and equipment, and save production time and costs. Traditional cleaning methods such as mechanical equipment methods (scraping, brushing), pressurized water, and pickling passivation have encountered many problems when cleaning machinery and equipment: it is not possible to completely remove alluvial deposits such as scale, acid liquid, etc. Equipment and equipment lead to erosion resulting in system loopholes. Residual acid causes re-etching or sub-scale erosion of...

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The noise of cooling tower is mainly dominated by fan noise and falling water noise. Fan noise is the noise generated by the fan when it is running, mainly aerodynamic noise, including rotation noise and eddy current noise. It also has reducer noise and motor noise that drives the fan. The falling water noise is the sound of falling water that collides with the tower chassis and the water accumulated in the tray when the cooling tower falls from the water spray device. Its value is related to the falling water height and the water flow per unit time. In addition to the noise mentioned above, there are noise from circulating water pumps, matched motors, and radiated noise from pipes. Because the noise of the cooling tower affects the prediction mode and the size of the cooling tower, and the distance between the prediction point and the cooling tower, the delimitation of the range of different prediction modes is not clear at present. You can consult the manufacturer on the selection and range of the cooling tower mode. 的 The noise of the cooling tower affects work and life and brings inconvenience to people. There are four main ways to reduce the noise pollution of cooling towers: reasonable layout, reasonable selection of cooling towers, control of propagation channels, and protection of sound receiving bodies.

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The main principle of the closed cooling tower is that the spray water is evaporated on the outer wall of the coil to cool the fluid in the tube, and the fan is used to take away the generated water vapor in time. A small part of the spray water evaporates, and the rest is collected and circulated by the chassis. In addition to being used in air conditioning systems, it can also be used in metallurgy, chemical, and petroleum industries. But its use also increases manufacturing investment and operating costs. Therefore, optimization design is needed to achieve the purpose of economical energy saving. Its main component is a tube evaporative cooler, and its structural parameters have an important influence on the optimal design of the closed cooling tower. Therefore, the optimization of its structure focuses on the optimization of the tube evaporative cooler. 1.Optimization of objective function structure Through the cooperation of different cooling components, its operating efficiency is reduced. 2.Coolant optimization Different coolants have an important decisive effect on its cooling. 3.Working environment of closed cooling tower (environmental optimization) Installing it in a ventilated environment can increase operating efficiency and facilitate air circulation in the tower.

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Industrial installation instructions for FRP cooling towers? Glass fiber reinforced plastic cooling tower is a type of closed cooling tower. As a type of installation that uses repeated cooling of water to attract thermal energy to raise the temperature of water, it is widely used. FRP cooling towers are mostly made of polyester FRP. Because it is used in the open air, the effects of water resistance and aging resistance must also be considered. It is better to add fiber-reinforced materials to manufacture the glass fiber reinforced plastic cooling tower shell. It is better to use glass fiber exterior felt with high natural resin content, and pay attention to the following points in specific installation. The place where the FRP cooling tower is installed is generally a roof or a place with air circulation. For some special requirements, a sunken installation can also be used. Do not install too close to the waterproof channel, high volume wall that is easy to reflect the volume, and pay attention to the distance between the tower body and the external wall. Two or more FRP cooling towers can be used in series, but the distance between the towers should be paid attention to. It should not be installed in a place with poor ventilation, especially in a sealed place. Pay attention to installing in a clean environment. Although the closed cooling tower is closed, if it is installed in a place with soot and dust, it may be blocked. Pay attention to the surrounding environment....

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What should I pay attention to when the closed cooling tower is shut down? The heat removal design of the closed cooling tower is mostly selected according to the hot summer climate. For the closed cooling tower in winter, the heat removal may be too large. A closed cooling tower is a device that puts a tube heat exchanger (heat exchange coil) in the tower and reduces the temperature through ventilation, spray water and heat exchange with circulating water. Closed cooling towers are operated, and the ambient temperature is higher than zero degrees. The closed cooling towers may also reduce the water in the pipes to zero degrees and even freeze. The closed cycle can guarantee less water consumption and less possibility of water quality pollution, which can better ensure the operation of the main equipment and increase the service life. The water collecting tank, spray pipe, spray and other components inside the tower body timely arrange the dust to ensure the cleanness of the heat exchange environment and reduce the backlog of scale and dirt. Check whether there is dust on the components and the inner wall, and handle the dust in time. For the appearance of dirt, check whether the size of the fan blades, the gap between the fan blades and the wind blade is reasonable. Check whether the copper ball valve float in the water collecting tank of the closed cooling tower is damaged, and whether there are any leaking points in the water collecting tank and tower feet. Check whethe...

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Closed cooling tower is effective in applying natural cold sources, and have cooling effects in many occasions. Closed cooling towers have a wide range of applications, have a strong ability to adapt to the environment, can cool water at high temperatures, and use machinery Ventilated closed cooling towers are used as research objects. Through theoretical analysis and specific experiments, the heat transfer performance of closed cooling towers has been studied, and the performance of closed cooling towers has been strengthened according to changes in the diameter of cooling coils. About the efficiency of wet exchange. According to the characteristics of the heat in the cooling tower, mechanical ventilation cooling, according to theoretical analysis and condition assumptions, the mathematical model established by the principle determines the thermal balance and calculation theory, the total heat transfer coefficient of the water spray and the total water spray from outside the pipe According to the experimental data, the thermal efficiency mechanical ventilation of the closed cooling tower is analyzed from five aspects. By analyzing the factors affecting the cooling effect of the closed cooling tower, the ideal operating parameters and structure of the cooling tower are known. VIEW MORE

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China’s industrial technology level has also continued to mature. The demand for cooling tower production has continued to increase, and the level of localization has been increasing. Under the country’s call for vigorously advocating resource conservation and environmental protection, cooling towers are developing towards energy conservation and environmental protection. Cooling tower noise has always been the biggest drawback. Many technologies have not achieved noise-free effects, but the latest research and development of fanless cooling towers can be achieved. This energy-saving and environmental-friendly cooling tower is the future development aspect of the cooling tower industry. Once it is widely used in industrial production, it will be respected by more companies. After China’s entry into the WTO, in order to better participate in international competition and be in line with international standards, the country has planned a large-scale adjustment and reorganization of the cooling tower industry, including the formation of large groups that combine production, education, and research. The country has continuously introduced high-tech and high-quality cooling tower products, and it is necessary to computerize and modularize the design, selection, quotation, and cost management of wet and dry cooling towers, and to take advantage of the price advantage of domestic products. This can not only occupy the domestic market It is also possible to rush ...

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The company is about to upgrade the series of products. Through the unremitting efforts of the R & D department, the company has developed a new generation of cooling tower products. The company will further improve the function and appearance of the products. For the R & D of the new products, the company leaders attach great importance to it and participate in the design for many times. The new samples and materials are about to be printed. The new products will be more energy-saving, cooling energy efficiency will be higher, appearance will be more beautiful, will become our company’s star products.

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