What is a water cooling water tower?
The cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to reduce the temperature of the water; its cooling is to use water and air to exchange heat and cold to generate steam, and the volatilization of the steam takes away the heat to achieve evaporation. The principle of heat dissipation, convective heat transfer and radiation heat transfer is to dissipate the waste heat generated in the industry or refrigeration and air conditioning to reduce the water temperature of the evaporative heat dissipation device to ensure the normal operation of the system.
How is the water cooling tower work?
The cooling water with heat is exchanged with the air in the tower, so that the heat is transferred to the air and dissipated into the atmosphere. One of the heat exchange methods between water and air in the cooling tower is that the air flowing over the water surface is in direct contact with the water, and the heat in the water is transferred to the air through contact heat transfer and evaporative heat dissipation. Cooling in this way is called a wet cooling tower. The heat exchange efficiency of the wet cooling tower is high, and the limit temperature of the water being cooled is the wet bulb temperature of the air. However, water loss is caused by evaporation; evaporation increases the salinity of the circulating cooling water. In order to stabilize the water quality, part of the water with higher salinity must be drained; wind blowing will also cause water drift loss. Sufficient fresh water must be continuously replenished. Therefore, the wet cooling tower needs a water source for supplying water.
In water-deficient areas, dry cooling towers can only be used when it is difficult to replenish water. The heat exchange between air and water in the dry cooling tower is to transfer heat through the surface of the radiator composed of metal tubes, and transfer the heat of the water in the tube to the air flowing outside the radiator. The heat exchange efficiency of the dry cooling tower is lower than that of the wet cooling tower, and the limit temperature of cooling is the dry bulb temperature of the air. The one-time investment of these devices is large, and the fan energy consumption is high.
Application of cooling tower
The process of cooling water in a cooling tower is a heat and mass transfer process. The cooled water is distributed to the inner packing of the cooling tower by a nozzle, a water distributor or a water distribution plate, which greatly increases the contact area between the water and the air. Air is circulated by the induced effect of fans, forced air, natural wind or jets.
Cooling towers are mainly used in air-conditioning cooling systems, refrigeration series, injection molding, tanning, foaming, power generation, steam turbines, aluminum profile processing, air compressors, industrial water cooling and other fields. . The specific division is as follows:
A. Air temperature regulation categories: air conditioning equipment, cold storage, cold storage room, freezer, heating and cooling air conditioning, etc.;
B. Manufacturing and processing categories: food industry, pharmaceutical industry, metal casting, plastic industry, rubber industry, textile industry, steel mill, chemical industry, petrochemical products, etc.;
C. Mechanical operation and cooling: generators, steam turbines, air compressors, oil compressors, engines, etc.;
D. Other industries.
In a crossflow cooling tower the process water is pumped to the top of the tower into the hot water distribution basin. The distribution basin is out of the way of the airstream and is gravity fed. The only driving force behind the nozzles is the hydrostatic head of water above the nozzle itself.
Here let's see some parst of our counter flow cooling tower:
1.Film
It has the advantages of advanced technology, reasonable design, reliable data, durability, good cooling effect, small ventilation resistance, strong hydrophilicity and large contact area after testing and production operation.
The filling of the oblique cooling tower adopts two forms of ring material and screw assembly, and the inclination angle is generally 60 degrees. It is mainly used for circular counterflow cooling tower cooling towers.
The oblique corrugated packing of the circular counter-flow cooling tower is made of polypropylene. It has been proved by the user's field use that the packing has the advantages of light weight, convenient installation, good chemical resistance, high cooling efficiency and wide application range. It is one of the relatively new high-efficiency fillers at present. It is suitable for high-temperature cooling towers above 80 ℃, and is also suitable for petroleum, chemical, metallurgy, electric power, textile and other industrial and mining enterprises to use as an ideal filler for cooling tower circulating water supply.
Slanted staggered packing This packing has advanced technology, reasonable design, and durability. The test and production operation show that the cooling effect is good. It is suitable for small and medium-sized cooling towers. It has small resistance, high thermal performance, is not easy to be blocked, and the components are light in weight. During use, the water flow is increased, and the cooling effect is obvious.
2.Water Distributor
What is the water distributor of the cooling tower?
The cooling tower rotor, also known as the cooling tower water distributor, is also called the cooling tower universal head. It is an important part of the counterflow circular cooling tower sprinkler system. It is located above the cooling tower filling and connected to the cooling tower. The central water pipe and the sprinkler pipe of the cooling tower.
The water distributor is an indispensable part of the cooling tower. The water distributor must first have a spray effect, and the more uniform the better:
Before the water distributor sprays the cooling water, the cooling water of the cooling tower will enter the water distributor through the cooling water inlet pipe, the water distributor will distribute the water, and then spray through the spray holes of the water distributor. To achieve the most uniform water distribution, coupled with the role of filler, can maximize the working efficiency of the water distributor, improve the heat dissipation effect of the cooling water tower, and then improve the heat dissipation effect of the entire cooling tower, and finally improve the cooling effect. The cooling effect of the tower!
Our water distributor has the characteristics of high rotation sensitivity, low water head, uniform water distribution, less floating water, flexible operation, long service life, convenient installation and easy repair.
The shell of our ABS water distributor is made of new ABS pellets, and the central part is stainless steel. It has excellent comprehensive performance, not easy to burn, wear resistance, low water head, uniform water distribution, less floating water and flexible operation.
3.Sprinkler
Sprinkler function: increase the sprinkling area and divert flow. The cooling water flows into the sprinkling pipe through the water inlet pipe, and then forms a water flow through the spray holes on the sprinkling pipe, and sprinkles on the packing of the cooling tower. Because the diameter of the nozzle hole is relatively small, the water flow has a certain speed. According to the principle of action force and reaction force, the sprinkler pipe is rotated by the force opposite to the direction of the water flow, so that the water flow is continuously distributed to the packing of the cooling tower.
According to the performance of the cooling tower, our cooling tower sprinkler pipe can be divided into two types: standard cooling tower sprinkler pipe and high temperature type sprinkler pipe. The material of our standard type sprinkler pipe is PP material, and the material of high temperature type sprinkler pipe is nylon material.
Our standard PP sprinkler pipe is non-toxic, tasteless, low density, and can be used at around 100°C. It has the characteristics of corrosion resistance, wear resistance, aging resistance and long service life.
Our high-temperature nylon sprinkler pipe has unlimited corrosion resistance, high temperature resistance ≥ 120 ℃, wear resistance, aging resistance and long service life.
4.Cable Knot
The special cable knot for cooling tower produced by our company is a part that connects pipes with each other, and is connected to the pipe end. There are holes on the knot, and the bolt makes the two cables closely connected, and the knot is sealed with a gasket.
As the water inlet and outlet of the bottom basin, the water supply port, the full water port and the drain port, the high-temperature nylon knot is made of high-quality nylon fiber material, with precise workmanship, neat teeth and tight connection.
Our nylon cable knot is made of nylon plus fiber material, which has the characteristics of good sliding property, excellent wear resistance, high temperature resistance, corrosion resistance and long service life.
100T Counter Flow Cooling Tower Spec:
Item | Content | Value | Remarks |
Basic specs | Cooling Tower Type | Counter flow round type tower | |
Model | AYD-100T | ||
Circulating Water Flow | 78.12 m3/h | ||
Inlet Temp／Outlet Temp | 37℃／32℃ | ||
DB／WB | 31.5℃／28℃ | ||
Cooling Capacity | 390,600 kcal/h | ||
Noise Value | 63.5dB(A) | ||
Power Supply | 380V／3P／50Hz | ||
Water Requirement | PH＝6-8 | ||
Design specs | Air Water Scale | 1.48kg/kg | |
Flying Water Loss | ≤0.05% | ||
Evaporation Loss | 8.3% | ||
Net／Running Weight | 500/1600KG | ||
Motor fan specs | Fan Type | Axial-Flow | |
Air Volume | 46,872m3/h | ||
RPM | 710r/min | ||
Fan Dia（Φ） | 1,450 mm | ||
Quantity of Fan | 1set | 4pcs/set | |
Driving Mode | Directly | ||
Motor Power | 2.2kW | ||
Start Way | Directly | ||
Main | Inlet Pipe Size（DN） | 100mm | |
Dimension | Outlet Pipe Size（DN） | 100mm | |
Overflow／Drain Pipe（DN） | 25mm／25mm | ||
auto／manual supply（DN） | 25mm | ||
Material | Rotor | P.V.C | |
Sprinkler System | P.V.C | ||
Boarding | FRP | ||
Basin | FRP | ||
Fan | A.B.S | ||
Air Inlet | P.V.C | ||
Film | P.V.C |
Cooling tower installation steps
1. Pre-select an appropriate installation site
When installing the cooling tower, pay attention to its load and ventilation conditions.
2. Prefabricated cement foundation and installation of water tower support frame
According to the recommendations of the manual, prefabricate the foundation of concrete or steel frame, and then assemble the bottom basin support frame of the water tower into a circular frame shape, and the level must be uniform.
3. Install water tower sink and basin bottom
The sink is placed on the central foundation, the periphery of the basin is supported on the bottom frame, and the inner circle of the basin is fixed on the flange surface of the sink.
4. Install the central throat, the central throat clamp and the body support frame
The central throat should be installed vertically on the throat curve of the sink, then install the central throat clip, and then install the surrounding bracket.
5. Install the heatsink bracket and heatsink film
Connect the heat sink bracket to the central throat clip, but it must be horizontal and vertical. After verifying that each piece is well connected, all screws can be tightened, and then put into the combined heat dissipation film.
Anyda cooling tower Note: If you need to step on the rack to install other equipment, please use a wooden board to temporarily place it on the heat sink bracket.
6. Install the enclosure and the ladder
Place the enclosure body on the body bracket, then assemble and tighten the screws around the heat sink, and then install the ladder at the pre-designated position.
7. Install sprinklers, pipe hangers and sprinkler pipes
Install the sprinkler head on the top of the central throat pipe, then put the pipe hanger on the top of the sprinkler head, and then push the sprinkler pipe horizontally into the sprinkler head. It should be installed backward at 10 degrees from the vertical line (during operation, the final adjustment angle should be made according to the needs, please refer to the recommended rotation speed in the manual)
8. Install the motor, motor frame and fan
Install the motor frame horizontally on the top of the casing, then put the motor and reducer, and then add the fan combination, and finally add the fan net. Note that for water towers below GL-80T, the motor, motor frame and fan must be assembled in advance before being installed on the top of the cooling tower.
9. Seal the seam between the water basin and the enclosure
Since the water tower is a multi-combination type, after the installation is completed, it is necessary to seal the gap with the prepared fiber drop sauce.
10. Install overflow, float combination and filter screen
Place the overflow device, the floating ball combination and the filter screen in the preset place, and wrap the hose tape at the joint of the throat and teeth.
Regular blowdown of the cooling tower mainly refers to cleaning the silt, moss and corrosion products of the cooling tower water tray, reducing the weight of the water tray itself, avoiding blockage of the return water pipe, reducing the turbidity rate of the circulating water, and strengthening the refrigeration effect of the cooling tower. Therefore, regular sewage discharge is very important, let's take a look at the specific implementation method together!
For users who mainly use groundwater or tap water, because the hardness of the circulating water medium is relatively high, it is recommended to add detergents and other drugs regularly to avoid scaling of circulating water; for users who use river water or other circulating water, it is recommended to add algae killers regularly Drugs to avoid the growth of algae and moss.
The correct cleaning method for cleaning the cooling tower can be carried out according to the following steps:
1. Clean up the sediment, scale, silt, and long moss in the cooling tower, and then use the cleaning water gun to clean the fan, sprinkler, packing, tray, outlet tank and outlet filter of the water tower.
2. After the above parts are cleaned, start the circulating water pump, put cleaning agent and bactericidal algicide in the cooling tower, control the pH value of the water between 5.5 and 6.0, and remove the rust and algae in the equipment pipeline .
3. After cleaning the cooling tower, close the upper drain valve, reopen the water supply valve, and fill the cooling tower with water. At the same time, open the connecting valve of the cooling tower to adjust the water level of the connecting tower to balance to avoid overflow.
The user's industry is different, and the temperature of the water outlet of the machine is also different. With the cooling tower, the heat in the water from the machine can be continuously taken away. If the heat dissipation effect of the cooling tower is not good, the operation effect of the machine will definitely be greatly reduced.
Hot Tags: counter flow water cooling water tower 100ton China, manufacturers, plant, price, for sale
