The following countermeasures are taken for the cold protection problem of the closed
Cooling Tower in winter:
1. Drain the water in the cooling tower
In general, the cooling tower has a lower water filling point, that is, the water in the tower body is drained when it is not used in winter, so as to prevent the external temperature from being too low in winter and causing the
Coil to freeze and crack.
2. Assembly method
In order to prevent the water in the coil from being drained cleanly, and the residual water is refrigerated at a not-so-good temperature, causing the coil to crack. During the decoration construction, slightly adjust the assembly flatness of the cooling tower, and fill the coil with water as much as possible. Point at the bottom point to achieve the purpose of reducing the residual amount of water.
3. The heating cable is cold-proof
Because the production process may use cooling towers in winter, heat tracing cables will be added to the cooling circulating water pipes during design to automatically adjust the temperature of the water in the tap water pipes and prevent the coils from freezing and cracking. The basic working principle of the central air-conditioning refrigeration system to block the freezing heating cable is: the electric heating cable is a flat strip cable composed of a conductive polymer material composite material, two parallel metal wires and a blocking edge sheath. The heat tracing system is an effective method for fire protection pipes and water delivery pipes to prevent cold and heat insulation in winter to ensure the smoothness of the pipelines. Self-limiting temperature heating cables are selected. The advantage is: the temperature control electric heating cable is equipped with automatic power adjustment corresponding to the electric heat tracing management system, so it is not easy to be damaged due to its own heat, but it needs to compensate for the actual heat generation, so it is a new generation of environmentally friendly constant temperature heating device. Start the item at ultra-low temperature, the temperature is uniform, and each part can be automatically adjusted by the temperature change of the electric heat tracing. Simple assembly, easy maintenance, high level of automation technology, low operation and maintenance costs. Reliable, non-polluting, long-lasting, not only used in general areas and dangerous areas, but also in corrosion areas.
diffuse cooling tower
4. Add car antifreeze in winter
In some areas where the climate is not good, in order to prevent a part of the water remaining in the closed cooling tower in winter, and the coil will be frozen and broken when the temperature is low, you can add automobile antifreeze to the cooling tower, that is, pre-buried during the decoration construction. The car antifreeze is added to the mouth, and the cooling tower car antifreeze is added in winter according to the actual situation.
January 10, 2023
