Cross-flow square cooling tower device with dust removal and anti-scaling functions and control method

Abstract

The invention provides a cross-flow square cooling tower device with dust removal and anti-scaling functions, the device includes a cooling water system, a rainwater collection and purification system, a fire water tank system, a dust removal system, a control device, a temperature sensor and a water cooling unit; the The cooling water system is communicated with the water cooling unit for exchanging heat with the water cooling unit; the rainwater collection and purification system is communicated with the dust removal system for supplying water to the dust removal system; the fire fighting water system is communicated with the cooling water system for The cooling water system performs cooling and cooling; the temperature sensor is used to detect the temperature of the cooling water exchanging heat from the water cooling unit, and send a signal to the control device, which controls the operation of the entire system. The invention has the advantages that the scaling problem of the cross-flow square cooling tower can be alleviated, the heat exchange efficiency can be improved, and the operation cost can be reduced;

Description

technical field [0001] The invention relates to the technical field of cooling water, in particular to a cross-flow square cooling tower device and a control method with functions of dust removal and scale prevention. Background technique [0002] With the continuous development of the economy and society, people have higher and higher requirements for the comfort of indoor space, which makes the central air conditioner that cooperates with the water-cooled unit and the cooling tower more and more popular. Therefore, the cooling tower has also been used on a large scale. At the same time, the fire water tank is an essential device for fire fighting. In the process of using the existing cooling tower and fire water tank, there are the following problems: [0003] (1) The packing structure of the cooling tower is easy to scale. Studies have shown that the cooling water will heat up after heat exchange in the water-cooled unit, and the higher the temperature of the cooling wa...

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Problems solved by technology

Therefore, when the temperature of the water entering the cooling tower in the cooling water system is too high, it is not only easy to scale, but also reduces the heat exchange efficiency of the cooling tower, which in turn affects the operation effect of the entire air conditioning system, resulting in a large loss of operating costs

[0004] (2) As the air pollution becomes more and more serious, the dust contained in the air is also increasing, which makes it easy for the air to foul on the packing after entering the cooling tower

[0005] (3) The fire water tank will be used except when a fire breaks out, and the rest of the time will not work, so the fire water is generally static and non-flowing, which makes it easy to generate scale on the wall and bottom of the fire water tank, which leads to inconvenient cleaning and blockage in the later stage pipeline

[0006] (4) When the cooling tower is working, a large amount of water will be taken away by the heat exchange process between the air and the cooling water, which makes the cooling water system often need to replenish water, and the existing method is usually to replenish water through a large amount of tap water, resulting in waste of water

For example, the application date is: 2016.3.21, and the application number is: 201620219012.8. The Chinese utility model patent discloses a cooling tower filler descaling device, which can realize the self-cleaning of the cooling tower and avoid the ash accumulation caused by the cooling tower filler. The efficiency of the heat exchanger is reduced, but the problem of water supply is not considered; for example, the Chinese utility model patent with the application date: 2013.12.03 and the application number: 201320788410.8 discloses a cold storage system for fire water tanks for chilled water systems. Although the system The cold storage capacity of the fire water tank is utilized, but the scaling problem of the fire water tank is not considered; another example, the Chinese invention patent with the application date: 2010.05.24 and the application number: 201010180553.1 discloses a cooling tower anti-sand and dust removal device, Although this device solves the problem of sand prevention, it does not consider the influence of wind resistance on the efficiency of cooling towers

[0008] Although the above-mentioned technologies can improve certain aspects of the problem, they have not fundamentally and comprehensively solved the above problems

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