Ningxia Cooling Water Tower Maintenance Company Cooling Water Tower Reinforcement Manufacturer Cooling Water Tower Anticorrosion Unit

Ningxia Cooling Water Tower Maintenance Company Cooling Water Tower Reinforcement Manufacturer Cooling Water Tower Anti-corrosion Unit
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Power plant natural ventilation hyperbolic concrete cooling tower maintenance leak plugging and anti-corrosion construction unit Ningxia Yinnan Electric Power Natural ventilation hyperbolic reinforced concrete cooling tower maintenance leak plugging and anti-corrosion construction manufacturer
Power plant natural ventilation cooling tower repair and plugging construction unit
Jiangsu Jinfeng High-altitude Engineering Co., Ltd.
Technical consultation
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Natural ventilation cooling tower
Overview
Our company's unit is equipped with a cooling tower with a water spray area of and a tower height of . The outlet water temperature of the cooling tower under summer frequency weather conditions is. Since the supply water for the circulating water is gray water and the water quality is poor, in order to facilitate cleaning, the cooling tower adopts a trough water distribution system.
Principle
The high-temperature water passes through the shaft to the main water tank, is distributed to the distribution water tank, and the distribution water tank, and is then sprayed by the nozzle. The high-temperature water sprayed downward comes into contact with the upward flowing low-temperature air, resulting in contact heat transfer. , and evaporation heat transfer occurs due to the evaporation of water. The water molecules on the surface of the hot water are continuously converted into water vapor. In this process, heat is absorbed from the hot water, causing the water to be cooled. The function of the filler is to increase the contact area between water and air and prolong the contact time. Therefore, the filler is required to be highly hydrophilic and have low ventilation resistance. The function of the water eliminator is to separate and discharge water droplets, reduce water loss, and eliminate the impact of floating droplets on the surrounding environment.
Water distribution layout
The water distribution system consists of a main water tank, a distribution water tank, and a distribution water tank. According to the principle of evenly distributing water throughout the tower and maximizing the effective cooling area of the cooling tower, the cooling tower is equipped with a central shaft seat, a main strip One of the water tanks distributes water to the inner circumference, and the other main water tank is responsible for water distribution around the cooling tower. The main water tanks are arranged in a radial pattern. The filler is plastic, the nozzle adopts reflective type III plastic splashing device, and the water eliminator adopts wave type water eliminator.
The two pressure water inlet steel pipes of the cooling tower supply water to the inner and outer layers of the composite shaft located in the center of the tower respectively. The cooling tower water distribution system is arranged in inner and outer zones, and the inner and outer areas respectively occupy the cooling tower water. area, the inner shaft supplies water to the inner perimeter, and the outer shaft supplies water to the perimeter. In summer, one tower bears the water volume of each unit. In winter, the inner water distribution system stops operating, and all water flows into the peripheral water distribution system to increase the density of peripheral water spray and prevent the cooling tower from freezing in winter. The water distribution inside and outside the cooling tower is controlled by valves on the circulating water pipe outside the tower. There is a bypass pipe system on the water inlet pipe of the cooling tower. When the unit is started in winter and the heat load is small, the circulating water is directly discharged from the bypass pipe into the pool to prevent the water spray device from freezing.
Equipment technical specifications are shown in the table
Unit natural tower equipment specifications (table)
Water tower type

Natural ventilation counterflow cooling tower

Shower Water area



Water tower height



Air inlet height



Design circulating water volume

(single tower)

Catchment tank depth



Catchment tank storage Water volume



Evaporation loss (summer heating/winter pure condensation)

/ (single tower)

Wind Blowing loss (heating in summer/pure condensation in winter)

/ (single tower)

Water spray height



Number of nozzles

Each

Tower tank diameter



Throat diameter



Tower top diameter



Shaft height



Internal and external shaft diameter
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Main water tank top elevation



Design inlet and outlet water temperature

Summer frequency meteorological conditions Below, the outlet water temperature of the water tower is

Water distribution method

Trough type

Filling type

Wave
< br/> Filling material

Filling

Filling layer height



Drainer type
< br/>

Drain eliminator material

Drain eliminator

Number of nozzles

Individual
< br/> Nozzle type

Reflection type III

Nozzle diameter



Nozzle material

/>Engineering Plastics


Quality Standards
The main and distribution tanks should be intact without breakage. The tank should be clean and free of silt, microorganisms and debris. The cover plate on the tank should be complete and free of debris. Defect.
The nozzle should be firmly installed in the sink, clean and smooth, without aging, breakage, falling off or falling off, and the water permeability is high.
The packing should be placed neatly and intact, and the scale, microorganisms and debris on it should be removed in time.
The drain eliminator should be clean, complete, not loose, broken or dropped, and should be fully covered in the tower with no larger than 10 gaps. The drain eliminator hook should be firm and free of corrosion and breakage.
Steel ladders, walking trails and all railings should be free from rust and breakage.
The storage tank is clean and free of sludge and debris.
Each water supply door, bypass door, etc. should have flexible opening and closing, tight tile openings, and clear and accurate instructions. After repair, the surface should be painted to prevent corrosion. There should be no leakage on the joint surfaces and packing areas, and the door pit should be clean.
Each water supply pipe and bypass pipe should be smooth, free of rust and leakage, the bracket should be firm, the needle rollers should be complete, and the expansion joint welding joint should be firm and free of cracks.
The anti-corrosion layer on the inner wall of the tower is intact, and there is no thick accumulation of moss on the surface. The railings on the top of the tower are intact and have no rust or breakage. The lightning protection equipment is well grounded and effective. There are no cracks in the pillars and tower, and there is no peeling of cement on the surface.
The mesh grating at the outlet of the tower has no defects such as corrosion, deformation, cracking, etc. The mesh is smooth and unblocked. The electric hoist can be lifted and lowered flexibly and the brake is reliable.
Power plant natural ventilation cooling tower repair and plugging construction unit
Jiangsu Jinfeng High Altitude Engineering Co., Ltd.
Technical consultation