According to the relative flow direction of water and air in the filler, energy-saving FRP cooling towers are divided into two types: counter-flow type and cross-flow type. The shape is round, square, counter-flow and cross-flow cooling towers have their own advantages and disadvantages.
The energy-saving FRP cooling tower is also called the new FRP cooling tower, or the water turbine energy-saving cooling tower. Its core is: the water turbine is used instead of the motor. The whole cooling tower removes the motor, which means there is no electricity, increases the air duct and extends the air duct. In this way, the overflow of water is well controlled, and the water turbine uses wind energy to drive the blades, so the noise is well controlled and 100% energy saving is really achieved, therefore, energy-saving cooling towers are 100% energy-saving.
The "square counterflow cooling tower with inclined ladder open wave packing sheet" used in the design of energy-saving FRP cooling tower has thermal and resistance characteristics different from other fillers. It is characterized in that the inclined trapezoidal wave forms a packing block by bonding rope heads, which has good stability and durability. The trapezoidal wave height is 23mm, and the ventilation resistance is reduced. The cooling tower can increase the filling height from 1.0m to 1.5m, thus improving the thermal performance.
Cooling tower design parameters: industrial cooling tower: air wet bulb temperature τ = 28 ℃, inlet tower water temperature t1 = 42 ℃, outlet tower water temperature t2 = 32 ℃, civil cooling tower (low temperature drop): air wet bulb temperature τ = 28 ℃, inlet tower water temperature t1 = 37 ℃, outlet tower water temperature t2 = 32 ℃.
When selecting an energy-saving FRP cooling tower, it is necessary to know the cooling water quantity Q, inlet tower temperature t1, outlet tower temperature t2 and air wet bulb temperature τ, and determine the tower specifications according to the thermal performance curve.
The material of the cooling tower can withstand a low temperature of 50 ℃. Anti-icing measures shall be taken for areas where the average temperature in the Leng Yue is lower than 10 ℃. The turbidity of circulating water shall not be more than 50mg/1 and not more than 50mg/1 in the short term. It shall not contain oil pollution and mechanical impurities. If necessary, measures shall be taken to kill algae and stabilize water quality.
The load on the foundation of the cooling tower is shown in the "foundation buried plate and load table". the inlet and outlet pipes of the cooling tower rotate at 90, 180 and 270 degrees. the water distribution system is designed according to the nominal cooling tower water volume. if the difference between the actual water volume and the nominal water volume is more than 15%, it should be stated when ordering that the inlet water temperature of the cooling tower is not more than 60 ℃, and if it exceeds 60 ℃, it should be stated when ordering.
Generally speaking, the energy-saving FRP cooling tower has the advantages of good thermal performance, low power consumption, good stability of the whole tower, beautiful appearance, low noise, short construction and installation period, low cost, etc. It is widely used in a large number of circulation systems of petroleum, chemical, metallurgical, electric power and other enterprises. The energy-saving FRP cooling tower adopts variable torque pole-changing motor, so that the annual power consumption can be saved by 40%-52%, leading level at home and abroad.
1. After the cooling tower is installed, the debris and dirt on the pipe, water collector, filler surface and water collection tank should be carefully removed to avoid blockage.
2. Before the cooling tower is used, it should be put into trial operation to check whether the fan, tower body is installed smoothly, whether the water distributor is running normally, whether the water distributor is evenly discharged from the nozzle, whether the moisture-proof measures of the motor are tight, etc.
3. When using the cooling tower, the cooling tower should always observe and check the operation of the fan, including current, voltage, fan vibration, noise, gear oil level, whether there is oil leakage or whether the belt drive is loose, whether there is slippage, and whether the water distribution is normal Wait.
4. The gear box with 20# mechanical oil or gear oil, in addition to the usual continuous filling to the specified oil level, every year of continuous operation, should be replaced once.
5. For belt drive bearing seat, lubricating grease shall be added. At ordinary times, oil gun shall be used to add once a month. Every year of continuous operation, all parts shall be disassembled, washed and replaced. Attention shall be paid to the fastening of connecting parts and bolts.
6. The turbidity of the inlet water of the cooling tower is not more than 10 mg/L. During operation, regular sewage discharge or increased water quality stabilization treatment should be considered according to the water quality.
7. The filler material adopts modified temperature resistant rigid polyvinyl chloride (PVC), or high temperature resistant polypropylene (PP).
8. When bacteria and algae are produced in the circulating water, shock chlorination can be used to remove them. The amount of chlorination can control the residual chlorine in the main return water pipe to 0.5~1.0 mg/L, and the time is 4~6 hours.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong Province, the hometown of glass fiber reinforced plastic in China. The company has three-level qualification for construction mechanical and electrical installation engineering, three-level qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, an axial fan invention patent, a fan utility model patent, EIA, three at the same time waiting for complete procedures