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Because energy is a vital natural resource, it is the material condition for economic and social development and socio-economic development in our country or locality. With the increase of population and social development and economic growth, the demand for water is constantly increasing. Energy and water sources The problem has become more and more prominent. The previous in-depth analysis has long shown that the high efficiency of closed cooling tower open cooling is stronger than that of closed cooling towers, but the closed cooling tower open cooling of the water system is connected to In the atmosphere, it causes problems such as water pollution and corrosion of machinery and equipment.
Nowadays, closed cooling towers are more effective at the level of using natural cold sources, and have corresponding cooling effects in many occasions. Closed cooling towers are widely used, have strong ability to adapt to the environment, and can cool at high temperatures. For circulating water, a mechanically ventilated closed cooling tower is selected as the research object. Based on theoretical analysis and specific experiments, the heat conduction function of the closed cooling tower is deeply analyzed, and the function of the closed cooling tower is improved according to the change of the diameter of the cooling coil. The following in-depth analysis work is mainly about the high efficiency of wet exchange.
According to the above theoretical analysis, the structure of the closed cooling tower is first determined, and the model test cooling tower cooling fan is constructed to facilitate the closed test of the closed cooling tower to analyze the mechanical ventilation. In view of the development of the previous test platform, the test platform Considering the gas flow and adding demister equipment to the pipe, it is helpful to imitate the cooling circulating water, which is heated by electric heating to ensure the long-term operation of the test.
According to the characteristics of the heat in the cooling tower, mechanical ventilation and cooling, based on theoretical analysis and conditional assumptions, the mathematical model determined by the basic principles determines the heat balance and calculation theory, the total heat transfer coefficient of water spray and the total water spray from outside the tube to the gas According to the experimental data, the thermal efficiency of the closed-circuit cooling tower is analyzed from several levels. Based on the analysis of the reasons that affect the cooling efficiency of the closed-circuit cooling tower, the main parameters and structure of the most suitable operation of the cooling tower are recognized.
With the widespread use of closed cooling towers in the market, the market demand and production scale of cooling towers continue to expand, and the types and methods of closed cooling towers have become more and more abundant. According to the specific production conditions and demand of the closed cooling tower, combined with the actual cooling environment, a closed cooling tower that meets the requirements is formulated from many aspects.
1. Internal circulation: The circulating water enters the surface cooler after heat exchange and heating by the heat source. According to the surface cooler, the heat is sent to the outside, and the cooled circulating water is pumped to the heat source.
2. External circulation: The spray water is sent from the water tank to the spray system. After the water is sprayed, it contacts the surface cooler to complete the heat exchange. A part of the hot steam is discharged by the fan. The cooled spray water falls into the water tank and completes the cycle again.
1. Compact structure: Compared with the cross-flow type, the counterflow tower has a tighter product structure and a large number of coil heat dissipation areas. It is more suitable for cooling projects with small temperature differences.
2. Overall machine: Because the cooling tower occupies a small road surface, after adding a circulating water pump, it can be made into an all-in-one machine, which is convenient to move.
3. Scope of application: Because the tower is compact and can be placed in the workshop, the cooling of the intermediate frequency power supply and the cooling of the mechanical water jacket are more suitable; it is especially suitable for the engineering projects with small temperature differences, such as the cooling of the water source heat pump unit group.
1. Relatively stable: The circulating water of the closed cooling tower generally uses soft water closed-circuit circulation to reasonably prevent the damage to the machine caused by the scale in the tower or the customer's machine during long-term use.
2. Water saving: Compared with traditional cooling towers, closed cooling towers are more suitable for use in places where water resources are scarce because of the use of fully enclosed internal circulation and the use of high-efficiency dehydration equipment.
3. Energy saving: The closed cooling tower can adjust the number of fans according to the temperature, and the opening and closing of the spray pump, and can also install a regulating valve to adjust the flow.
4. Environmental protection: The closed cooling tower is not polluted according to the fully enclosed internal circulation water, and it can be used continuously. The relative evaporation of spray water is small, which protects the natural environment to the utmost extent.
5. Longer service life: Our company uses high-quality metal materials to greatly improve its ability. The appropriate maintenance period is generally more than 10, and the post-maintenance and cost are lower.
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Guangdong Trlon Energy-saving Air Conditioning Equipment Co., Ltd.
Company Address： 1916A, Block A, David Donglong Business Building, Longhua, Longhua District, Shenzhen