Introduction of cooling tower

Circular cooling tower (cooling tower, cooling tower, cooling tower,) corrosion resistance, high strength, light weight, small size, small footprint, beautiful and durable, and transportation, installation and maintenance are more convenient. Therefore, it is widely used in various sectors of the national economy, and is particularly suitable for cooling water circulation systems such as air conditioning, refrigeration, air compression stations, heating furnaces and condensation processes. Circular counterflow FRP cooling tower The circular counterflow FRP cooling tower adopts counterflow gas heat exchange technology, and the filler adopts high-quality modified polychlorinated ethyl wave plate to diffuse the water spraying area. Through rotating water distribution, uniform water distribution can be realized and cooling effect can be enhanced. Our factory has made local improvements to the shape design of this series of products to make them more reliable, durable and easy to assemble.
Main use
(1)DBNL3 series low-noise FRP cooling tower-suitable for general cooling occasions such as air conditioning and refrigeration units with a water temperature drop of 3-8 degrees.
(2)GBNL3 series medium and high temperature industrial FRP cooling tower-suitable for industrial water circulation cooling system with water temperature drop of 10-25 degrees. Model composition circular countercurrent type
Performance and Selection
1. Design parameters:
1) Standard working conditions: inlet water temperature t1 = 37 ℃, outlet water temperature t2 = 32 ℃, design wet bulb temperature τ = 28 ℃, I .e. water temperature Δt = 5 ℃, cold amplitude high t2-τ = 5 ℃
2) Medium temperature condition: inlet water temperature t1 = 43 ℃, outlet water temperature t2 = 33 ℃, design wet bulb temperature τ = 28 ℃, I .e. water temperature Δt = 10 ℃, cold amplitude high t2-τ = 6 ℃
3) High temperature condition: inlet water temperature t1 = 60 ℃, outlet water temperature t2 = 35 ℃, design wet bulb temperature τ = 28 ℃, I .e. water temperature Δt = 25 ℃, cold amplitude high t2-τ = 8 ℃
2. When selecting, it is necessary to know the hourly circulating water volume Q, inlet water temperature t1, outlet water temperature t2 and design wet bulb temperature τ, and determine the model
3. This series of cooling towers are used in areas where the average temperature in the cold month is not lower than -10 ℃. Users with too low a temperature should put forward requirements to prevent freezing, so as to configure the water drenching guide ring and prevent water from flowing onto the louvers. During the intermittent operation in winter, the electric heating tube can be added in the water tank. This series of cooling towers are used in areas where the average temperature of the cold month is not lower than -10 ℃. Users with too low a temperature should put forward requirements for freezing prevention so as to configure the water drenching guide ring and prevent water from flowing to the shutters. During the intermittent operation in winter, the electric heating tube can be added in the water tank.
4, circulating water turbidity is not more than 50 mg/L, short-term not more than 100 mg/L, should not contain oil and mechanical impurities, if necessary to take algae and water quality stability measures.
5, the applicable water temperature does not exceed 60 ℃, such as more than can be explained in the order, the factory from the selection of materials to solve. If you need flame retardant cooling tower, please specify when ordering, our factory can meet the requirements.
6. The water distribution pipe shall be opened according to the nominal flow rate. If the difference between the actual flow rate and the nominal flow rate is more than 15%, the user shall explain it when ordering.
7. The water pressure of the water inlet pipe is about 2-5 meters of water column. Do not design too high pressure, otherwise it will produce floating water phenomenon.
8, motors, fans are supporting supply, need the factory to send personnel on-site installation or technical guidance, plus charges.
9. When users need to directly absorb water under the tower body of the cooling tower, they need to install "automatic water supply pipe", "rapid water supply pipe", "sewage pipe" and "overflow pipe", which should be specially proposed when ordering.
Structural features
(1) Tower body: reasonable line, stable airflow, excellent material, bright colors, surface gel coat resin containing anti-ultraviolet agent, aging resistance, high strength, light weight, corrosion resistance. According to the requirements of the order, the lower tower body can be equipped with overflow water, sewage and automatic water supply pipes, which can directly absorb water from this place, thus eliminating the cooling pool. The upper part is equipped with an anti-noise muffler pad, which effectively reduces the dripping sound.
(2) filler: the use of modified polyvinyl chloride wave plate, transverse increase the convex rib, water redistribution ability, small resistance, good thermal performance, high temperature 70 degrees, low temperature -50 degrees, good flame retardancy.
(3) Rotating water distributor and water distribution pipe: it is equipped with bearings, flexible and reliable operation, low water head and uniform water distribution. The water distribution pipe made of aluminum alloy or glass fiber reinforced plastic is used, and the water collection plate is installed on the pipe to overcome the phenomenon of floating water.
(4) Fan: The low-noise, high-efficiency fan designed by the Department of Engineering Mechanics of Tsinghua University according to the parameters of the series of cooling towers, aluminum alloy plate airfoil or glass fiber reinforced plastic blades, low noise and high efficiency.
(5) Motor: The low-noise energy-saving motor designed for the cooling tower by the Department of Electrical Machinery of Tsinghua University on the basis of the Y-series installation size, has good sealing and waterproof performance, high temperature resistance, high efficiency and low noise.
(6) Reduction device: The planetary gear reducer is not easy to damage, and the later maintenance is convenient.
(7) Air inlet window: equipped with glass fiber reinforced plastic louvers to reduce floating water and low airflow resistance, which is especially suitable for units that need to use cooling towers in northern areas and throughout the year.
(8) Bracket: all steel brackets for fans, fillers, air inlet windows, tower bodies, etc. are assembled, galvanized or painted for corrosion prevention. Fasteners are made of galvanized or stainless steel bolts.
Instructions for Installation, Commissioning and Use
1. The basic drawing and installation dimensions in this manual are for reference during installation. The direction of the inlet and outlet pipes of the small counterflow tower can be arbitrarily selected in the horizontal position, but it must not collide with the foundation. If there is a foundation in the middle, the load shall be 25% of the operating weight, and the remaining 75% shall be borne by the peripheral rectangular foundation on average. For example, the additional pressure caused by the load shall be considered for roof installation.
2. The connection between the cooling tower and the inlet and outlet pipes should be provided with a bracket to prevent excessive weight from pressing on the tower wall.
3, fan blades should be adjusted before installation and use to keep the angle consistent. The method is to make a mark on the front and rear edges of each blade at 150mm between the leaves, and then measure the distance between the front and rear edges of each blade respectively by the lower chord of the bracket to calculate the height difference between the front and rear edges of each blade. It is qualified to make the height difference consistent through several adjustments.
4. Seal the junction box after the motor is wired, and pay attention to the current test value not exceeding the motor load current.
5. When starting the cooling tower, the water pump must be turned on first and then the fan must be turned on. It is not allowed to run the fan without water drenching. The fan can reverse at low speed for a short time to eliminate ice.
6, the reducer should be filled with oil before use, can be lubricated with No. 50 anti-wear gear oil or engine oil, the initial operation of 100-300 hours should be replaced with new oil, after each operation of 3000-5000 hours to change oil. The oil level should be moderate and the oil mark should be easy to observe.
7. When the cooling tower is running, it should be managed by a special person, pay attention to the changes of current and water temperature, and regularly check the motor, reducer, water distributor, etc.
[product appearance] smooth surface, uniform color, no cracks. The surface is light green, if you need other colors, please specify.
[product quality] our products will be carefully checked before shipment, and all the products issued generally have no quality problems. After the product is received, if you have any questions about the quality of the product, please contact us within 48 hours after receiving the product, and we will solve it for you as soon as possible. Contact number: 13345088644
[Product Packaging] We are responsible for product packaging, and the product is not damaged; if there are special requirements, it will not be recycled.
[Payment Method] Payment to Shipment.
[warranty period] one year from the date of purchase (subject to the date of the official purchase invoice); provide paid maintenance services outside the warranty period.
[supply cycle] when there is inventory, delivery within three days. When there is no stock, the goods will be delivered within seven working days.
[mode of transport] logistics distribution car transport. The parts of this tower are transported and assembled on site. We have several major local logistics parks that can send goods to all parts of the country. We will try our best to help you choose the logistics with direct access, less Secondary specialized school and cheap freight, reduce the number of goods turnover, shorten the time of goods in transit and reduce the transportation cost.
Return policy]
(1) We are responsible for all product quality problems, and you can rest assured.
(2) We are responsible for the damage caused during transportation before delivery. After delivery, if you fall on the road and break the goods, we will not be responsible.
(3) The goods will not be returned or exchanged after use. Therefore, it is necessary to consider whether it needs to be returned or exchanged before use.
[Need to be prepared] What you need to do before the cooling tower arrives at the site:
1. A set of 380V three-phase power line, the length from the distribution box to the cooling tower.
2. Cooling tower foundation (we provide basic dimension drawing of foundation).
3. Cooling tower inlet and outlet pipes (we provide inlet and outlet pipe sizes).
4. One cooling tower circulating water pump (generally centrifugal pipeline pump is used, circulating water volume ≤ cooling tower cooling water volume, see "inlet pressure" in the cooling tower parameter table for pressure).