What is the role of packing in cooling towers?

The cooling tower packingcooling tower packing is an important part of the cooling tower, and it also determines the working efficiency of the cooling tower. In essence, the filler is made of a PVC material. This material adopts the honeycomb design principle, which can improve the cooling power of the cooling tower when the cooling tower is working, greatly reduce the input consumption of the cooling tower, and increase the cooling capacity at the same time. cooling efficiency of the tower. The filler has a temperature resistance of 50°C to 68°C, aging resistance, excellent performance, UV resistance and long service life.

The function of the filler in the cooling tower is to increase the heat dissipation, prolong the residence time of the cooling water, increase the heat exchange area, and increase the heat exchange. Evenly distribute the water. Not stuffing something into a tower that needs to be cooled. A cooling tower is a device that cools hot fluids (including water) to a reasonable temperature. The waste heat generated in industrial production or refrigeration process is generally conducted away with cooling water. The function of the cooling tower is to exchange the cooling water with the waste heat with the air in the tower, so that the waste heat is transferred to the air and dissipated into the atmosphere. Application scope of cooling tower: air conditioning cooling system, refrigeration series, electric furnace, injection molding, tanning, power generation, steam turbine, aluminum profile processing, air compressor, industrial water cooling and other fields.

Cooling tower packing can be divided into: S wave packing, oblique staggered packing, stepped trapezoidal oblique wave packing, differential sine wave packing, point wave packing, hexagonal honeycomb packing, bidirectional wave packing, oblique wave packing, etc.

The materials used in cooling tower fillers are Xiaoshu, asbestos cement, cement grids, plastics, glass fiber reinforced plastics, ceramics, etc.

The earliest cooling towers used only wood. Due to the availability of wood, from the advent of cooling towers until the 1960s, the fill in cooling towers was almost exclusively made of wood.

Mahogany was the most commonly used material for early cooling tower fill due to its anti-corrosion properties. Mahogany that grows for a long time is straight and strong in shape, has a long service life, and is easy to use, so it is more expensive. Later, there was a shortage of old rosewood, and prices continued to climb.

In the 1950s and 1960s, asbestos cement sheet was widely used as a material for cooling tower fillers. This material has good corrosion resistance. However, it has been found that asbestos cement is harmful to the environment during processing and production, so the application of this material has gradually decreased, and some countries have banned it.

Around the 1970s, the emergence of plastic fillers was a major innovation in the development of cooling towers. Plastic fillers were first used in the heating ventilation and air conditioning industry, and later in the refining and power plant industries. This filler is characterized by good corrosion resistance and can be used for a long time. Plastic film packing is a major innovation in the history of cooling tower development.

It increases the contact area between water and air. Thereby having better cooling capacity. However, under the high temperature and humid working conditions of the cooling tower, the plastic filler will age and deform after working for about 3 years, which will affect the cooling efficiency. Moreover, freezing in winter will also have a greater impact on plastic fillers.

In recent years, ceramic fillers have gradually been used in cooling towers of power plants, and the characteristics of ceramic fillers are anti-aging. Geometric deformation is not easy to occur, no brittle crack, and anti-corrosion, good acid and alkali resistance. Another feature of this filler is that it has very good freeze resistance, and the service life of the ceramic filler is relatively long, and the service life is designed for 30 years. The initial investment of this kind of packing is relatively large, the unit does not need to replace the packing after 30 years of service, and the operation and maintenance cost is also lower than other materials.

The cooling process of circulating water is closely related to the functions of air distribution, water distribution and cooling tower packing. The superiority of Cooling Tower PP Fill function directly affects the economical operation of the cooling tower. The cooling tower packing brings different cooling capacity due to the difference in its thermal function and resistance characteristics.

Cooling Tower PP Fill

As a Cooling Tower Fill Manufacturer, share with you the characteristics of cooling tower fill:

(1) When the fillers with the same geometric shape have different thickness and spacing, the water temperature differs by 0.42 ~ 0.70 oC

(2) The effect of the shape of the filler on the water temperature reaches 1.14 oC;

(3) The heat transfer function of plastic filler is better than that of cement grid plate. Therefore, the selection of cooling tower packings with excellent functions can reduce the temperature of the water exiting the tower and has a small ventilation resistance.

Regardless of whether the cooling tower is countercurrent or countercurrent, the high-performance film packing can reduce the cooling water by 5 ~ 8 oC. For existing cooling towers, the cooling capacity is increased by 50% or more. Paying attention to the operation and maintenance of the cooling tower packing, reducing the icing and damage of the cooling tower is an important method to improve the thermal function of the cooling tower.

After 4 years of use, the cooling tower packing should be replaced irregularly to ensure the normal working efficiency of the cooling tower. There has been aging for a long time, and some of the packings has fallen off, causing the cooling tower's heat exchange capacity to decline. It affects the operation efficiency of the refrigeration unit and consumes a lot of energy. At the same time, the broken cooling tower packing entered the condenser copper tube of the unit with the operation of the cooling water pump. In addition, the new cooling water treatment agent (hydroxycarboxylate) currently used by our department has a strong function of peeling rust. The copper tube of the condenser of the unit will be blocked.

If uneven distribution of water is found during the operation of the cooling tower, efforts should be made to eliminate the cause in time, usually due to the clogging of the water distribution pipe and the ejection of the nozzle. The dirt accumulated in the cooling pool and cooling tower fillers should be removed in time, and should generally be cleaned up every time it is stopped. When algae growth is found in the circulating water, impact chlorine should be added, and the remaining chlorine in the water should be treated with 4mg / L or bleaching powder for a short time. The turbidity and volume of water entering and exiting the glass fiber reinforced plastic cooling tower shall be included in the cooling tower operation record to accumulate maintenance management data and serve as a technical basis for repair and improvement of the cooling effect.

The choice of outdoor switching temperature point of cooling tower cooling mode is directly related to the system cooling hours. Assume that the required water supply and humidity at the end of the air conditioner are 12.7 ° C. Considering the cooling width of the cooling tower, heat loss of pipes and heat exchangers, etc., to increase the water temperature by 4.5 ° C, it can be switched to cooling tower cooling mode when the outdoor wet-bulb temperature is equal to or lower than 8.2 ° C. After the cooling tower in the system is selected according to the summer cold load and the outdoor calculated wet bulb temperature, it should also check its cooling capacity in the cooling tower cooling mode. The plate heat exchanger should be selected as the heat exchanger in the indirect cooling system. Our company also has Cooling Tower PP infill on sale, welcome to consult.

The function of the filler in the cooling tower is to increase the heat dissipation, prolong the residence time of the cooling water, increase the heat exchange area, and increase the heat exchange. Evenly distribute the water. Not stuffing something into a tower that needs to be cooled. A cooling tower is a device that cools hot fluids (including water) to a reasonable temperature. The waste heat generated in industrial production or refrigeration process is generally conducted away with cooling water. The function of the cooling tower is to exchange the cooling water with the waste heat with the air in the tower, so that the waste heat is transferred to the air and dissipated into the atmosphere. Application scope of cooling tower: air conditioning cooling system, refrigeration series, electric furnace, injection molding, tanning, power generation, steam turbine, aluminum profile processing, air compressor, industrial water cooling and other fields.

Cooling tower packing can be divided into: S wave packing, oblique staggered packing, stepped trapezoidal oblique wave packing, differential sine wave packing, point wave packing, hexagonal honeycomb packing, bidirectional wave packing, oblique wave packing, etc.

The materials used in cooling tower fillers are Xiaoshu, asbestos cement, cement grids, plastics, glass fiber reinforced plastics, ceramics, etc.

The earliest cooling towers used only wood. Due to the availability of wood, from the advent of cooling towers until the 1960s, the fill in cooling towers was almost exclusively made of wood.

Mahogany was the most commonly used material for early cooling tower fill due to its anti-corrosion properties. Mahogany that grows for a long time is straight and strong in shape, has a long service life, and is easy to use, so it is more expensive. Later, there was a shortage of old rosewood, and prices continued to climb.

In the 1950s and 1960s, asbestos cement sheet was widely used as a material for cooling tower fillers. This material has good corrosion resistance. However, it has been found that asbestos cement is harmful to the environment during processing and production, so the application of this material has gradually decreased, and some countries have banned it.

Around the 1970s, the emergence of plastic fillers was a major innovation in the development of cooling towers. Plastic fillers were first used in the heating ventilation and air conditioning industry, and later in the refining and power plant industries. This filler is characterized by good corrosion resistance and can be used for a long time. Plastic film packing is a major innovation in the history of cooling tower development.

It increases the contact area between water and air. Thereby having better cooling capacity. However, under the high temperature and humid working conditions of the cooling tower, the plastic filler will age and deform after working for about 3 years, which will affect the cooling efficiency. Moreover, freezing in winter will also have a greater impact on plastic fillers.

In recent years, ceramic fillers have gradually been used in cooling towers of power plants, and the characteristics of ceramic fillers are anti-aging. Geometric deformation is not easy to occur, no brittle crack, and anti-corrosion, good acid and alkali resistance. Another feature of this filler is that it has very good freeze resistance, and the service life of the ceramic filler is relatively long, and the service life is designed for 30 years. The initial investment of this kind of packing is relatively large, the unit does not need to replace the packing after 30 years of service, and the operation and maintenance cost is also lower than other materials.

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The cooling process of circulating water is closely related to the functions of air distribution, water distribution and cooling tower packing. The superiority of Cooling Tower PP Fill function directly affects the economical operation of the cooling tower. The cooling tower packing brings different cooling capacity due to the difference in its thermal function and resistance characteristics.

Cooling Tower PP Fill

As a Cooling Tower Fill Manufacturer, share with you the characteristics of cooling tower fill:

(1) When the fillers with the same geometric shape have different thickness and spacing, the water temperature differs by 0.42 ~ 0.70 oC

(2) The effect of the shape of the filler on the water temperature reaches 1.14 oC;

(3) The heat transfer function of plastic filler is better than that of cement grid plate. Therefore, the selection of cooling tower packings with excellent functions can reduce the temperature of the water exiting the tower and has a small ventilation resistance.

Regardless of whether the cooling tower is countercurrent or countercurrent, the high-performance film packing can reduce the cooling water by 5 ~ 8 oC. For existing cooling towers, the cooling capacity is increased by 50% or more. Paying attention to the operation and maintenance of the cooling tower packing, reducing the icing and damage of the cooling tower is an important method to improve the thermal function of the cooling tower.

After 4 years of use, the cooling tower packing should be replaced irregularly to ensure the normal working efficiency of the cooling tower. There has been aging for a long time, and some of the packings has fallen off, causing the cooling tower's heat exchange capacity to decline. It affects the operation efficiency of the refrigeration unit and consumes a lot of energy. At the same time, the broken cooling tower packing entered the condenser copper tube of the unit with the operation of the cooling water pump. In addition, the new cooling water treatment agent (hydroxycarboxylate) currently used by our department has a strong function of peeling rust. The copper tube of the condenser of the unit will be blocked.

If uneven distribution of water is found during the operation of the cooling tower, efforts should be made to eliminate the cause in time, usually due to the clogging of the water distribution pipe and the ejection of the nozzle. The dirt accumulated in the cooling pool and cooling tower fillers should be removed in time, and should generally be cleaned up every time it is stopped. When algae growth is found in the circulating water, impact chlorine should be added, and the remaining chlorine in the water should be treated with 4mg / L or bleaching powder for a short time. The turbidity and volume of water entering and exiting the glass fiber reinforced plastic cooling tower shall be included in the cooling tower operation record to accumulate maintenance management data and serve as a technical basis for repair and improvement of the cooling effect.

The choice of outdoor switching temperature point of cooling tower cooling mode is directly related to the system cooling hours. Assume that the required water supply and humidity at the end of the air conditioner are 12.7 ° C. Considering the cooling width of the cooling tower, heat loss of pipes and heat exchangers, etc., to increase the water temperature by 4.5 ° C, it can be switched to cooling tower cooling mode when the outdoor wet-bulb temperature is equal to or lower than 8.2 ° C. After the cooling tower in the system is selected according to the summer cold load and the outdoor calculated wet bulb temperature, it should also check its cooling capacity in the cooling tower cooling mode. The plate heat exchanger should be selected as the heat exchanger in the indirect cooling system. Our company also has Cooling Tower PP infill on sale, welcome to consult.

If you want to learn more, please visit our website film type fill cooling tower.