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Closed-loop circulating water

2017-10-31View Original

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Recently, the company is considering a renovation of the circulating water system, and replacing it with a closed-type cooling tower is being proposed. Could everyone here analyze the advantages and disadvantages?
Reply #22017-10-31
Advantages: Solves the problem of pipeline scaling; Disadvantages: Too expensive
Reply #32017-10-31
Advantages: ① Since a closed-type cooling tower operates with a fully enclosed circulation cooling system, there is no risk of debris entering the cooling pipeline system, which could lead to pipeline blockages; ②With soft water for circulation cooling, no scale is formed even at high temperatures, which would otherwise cause scaling in the cooling pipeline system ; ③It requires little space, no need to dig a pool, is easy to relocate, saves water, and reduces energy consumption ; ④It adopts a dual cooling system of air-cooled evaporation and heat absorption, resulting in high cooling efficiency ; ⑤It can directly cool media such as water, oils, alcohols, quenching fluids, saline solutions, and chemical liquids; there is no loss of these media, and their composition remains stable ; ⑥Due to the closed-loop system, the medium is not affected by the environment and does not contaminate it either ; ⑦The pressure loss of cooling water is lower than that of open cooling towers. Disadvantages: ① Due to the extensive use of copper coils, which have excellent heat exchange performance but are costly, closed-circuit cooling towers generally come at a high price ; ②If properly maintained, in the long term, due to the energy-saving and cost-reducing properties of closed-cycle cooling towers, their longer service life, and stable cooling performance, the total project cost will be comparable to or slightly higher than that of open-cycle cooling towers ; ③In the northern regions, winter temperatures are low; without effective anti-freezing measures, this can cause localized freezing and cracking of the cooler
Reply #42017-10-31
That’s exactly what I did at the energy-saving company before. . . It is mainly to reduce the pressure in the pipeline network. . . Save electricity consumption of the circulating water pump. . However, heat sources and heat sinks need to be used reasonably. . . . .
Reply #52017-11-01
In ammonia synthesis systems, does copper tube in closed towers need to be considered for ammonia corrosion? Is it necessary to change the material?
Reply #62017-11-01
Superconducting materials can be considered; copper tubes corrode in an ammonia environment
Reply #72017-11-02
I checked online and found that the requirements for closed towers are quite high. As for the entire synthesis system (conversion, compression, synthesis), will it be able to meet the required standards? The compressor has many thin pipes – can it be filled with water?

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