What should I pay attention to when replacing the packing of a cooling tower?

1. Before construction, protect other equipment on site, and carry out necessary isolation and listing. Lay a cloth of construction materials on the waterproof layer of the floor.

2. Remove the old filler. Turn off the power of the motor, remove the tension bar of the packing part of the cooling tower, and then remove the old packing, clean up the garbage in the tower, and clean the site.

3. Fill with new filler. Bond the cooling tower packing, and ensure that the packing is placed in the space during the binder curing time, ensure that the packing contact points are at the same level during bonding, and ensure that the packing contact points are evenly and tightly stressed during the crimping process.

Fourth, clean up in the tower. Clean up the dust and garbage inside the cooling tower, stack the packing in order in the cooling tower, strictly prohibit trampling and extrusion, ensure that each stack and each layer of packing blocks are neat, ensure that the packing is tight and seamless with the corners and column circumference, and the difficult places do not exceed 2mm intervals. Restore the tension of the packing part of the cooling tower.

5. The assembly block should be assembled in the upper and lower directions, and the top surface of each layer should be laid flatly, and the layers should be cleaned up to remove debris.

6. When installation, maintenance and other work need to work on the filler, it must be operated on the flat plate, and it is strictly forbidden to step on the filler.

7. During the whole construction process, it is strictly forbidden to weld above the filler, and fire prevention measures should be taken if necessary.

8. After the completion of the cooling tower packing replacement, tower overhaul and other processes, the construction tools and auxiliary installation facilities were brought out, and the project was successfully completed.

The installation of cooling tower packing is also critical to the success of the entire cooling tower installation. Installation precautions: 1. Ensure that the lower column and the lower water inlet pipe are in good contact with the foundation, the foundation is embedded with steel plates, and the foundation installation surface is flattened and ensure that on the same water surface, the lower column and the axis of the lower water inlet pipe are vertically foundational.

2. Pay attention to ensure that the diameter of the tower body after block assembly, especially the diameter error of the air outlet of the upper tower body should be as small as possible. 3. When the tower body is assembled and connected in blocks, attention should be paid to making the arc surface of the gasket fit with the arc surface of the rib of the tower body, and the assembly of the lower shell should ensure that it is watertight. 4. The fan should be installed to pump upward, the gap between the blade end of the fan and the tower body should be uniformly not more than 100mm, the four blades should be adjusted at the same angle, and the rotation plane of the impeller should be perpendicular to the center line.

5. The installation surface of the water-spraying filler layer is required to be flat and the spacing is uniform. 6. When using a circulating water pump, it should be noted that its flow rate is consistent with the amount of cooling water, and the cooling tower should be kept within the design volume of 5% when used, so as to prevent the waterproof amount from being too large and affecting the cooling effect. 7. The power supply should have safety measures, and after the power cord is connected, the motor junction box should be sealed to prevent moisture from entering and burning the motor.

8. The direction of the inlet and outlet pipes can be adjusted according to the actual situation of the site by changing the direction of the screw hole on the flange.

Cooling tower packing replacement method:Tools Materials: New cooling tower packing, cranes.

Method Steps:1. First remove the louvers of the cooling tower that need to be replaced with the filling of Sun Li material.

2.Remove the packing of the cooling tower.

3.Remove the packing of the cooling tower.

4.The packing of the cooling tower was all removed, and the water collection tray of the cooling tower was cleaned.

5.The dismantled packing of the old cooling towers is stacked on the roof of the building, waiting to be lifted by crane and taken to a professional waste disposal point. Take care of the environment and do a good job of garbage classification.

6.The new cooling tower packing is produced on-site.

7.The finished cooling tower packing is waiting to be installed.

8.The installation of new cooling tower packing begins.

9.The installation of new cooling tower packing is almost complete.

10.The cooling tower packing installation is complete.

11.Crane entry, because Beijing implements a ban on trucks during the day, the crane comes in at night, but in order to prevent the construction at night from disturbing the people, the crane enters at night, and the operation method of the second daytime construction is adopted, and then leaves the next night.

12.Professional garbage disposal vehicles are used, and the waste filler is loaded and transported to the garbage that can be processed.

Adding a layer of cooling tower packing will have the following effects:

1.The increased safety of the cooling tower system can effectively prevent the heat exchanger from corroding the ear.

2.After the packing is added, the imbalance of temperature and pressure in the column due to fluid inhomogeneity is reduced, so as to stabilize the performance of the operation.

3.Due to the increased efficiency of the water molecule diffusion in the cooling tower, this will help the cooling tower to achieve the cooling purpose faster.

4.Retrofitting has an absorption effect that helps the system control metal agglomeration and reduce the formation of fouling.

5.In terms of cost, packing retrofitting is also much cheaper than a non-packing system, which can result in significant savings in installation and use costs.

The addition of a layer of cooling tower packing can improve the heat dissipation performance in the tower, increase the heat exchange area, and thus increase the heat of condensation. At the same time, it can effectively block dirt and sediment, reduce the offset temperature difference, make the cooling tower work more stable, reduce the breeding environment of sediments in the tower, reduce the debris inside the tower, improve the flow state in the cooling tower, reduce the heat accumulation in the tower, and prolong the life of the cooling tower. In addition, the filler can also make the flow rate more uniform, reduce the formation of bubbles, and improve the heat transfer efficiency from the source.

When a layer of packing is added to the cooling tower, the seepage judgment can improve the heat dissipation efficiency of the cooling tower, reduce the system flow of cooling water, and improve the energy saving of cooling water. It can enhance the uniformity of the corrosive environment and improve the life of the deoxygenation leakage and merging machine; It can improve the separation efficiency of the tower body, reduce the residual water volume, and improve the safety of the tower body.

The addition of cooling tower packing can affect the efficiency of the cooling tower. The addition of a packing layer can improve the cooling efficiency of the cooling tower, because it can increase the condensation area of the cooling tower, increase the contact time of the condensate, and improve the cooling efficiency of the condensate. However, the addition of a packing layer can increase the resistance of the cooling tower, thereby reducing the efficiency of the cooling tower.

1. Reduce the cooling efficiency of the cooling tower: The additional packing will reduce the flow of fluid inside the cooling tower, thereby reducing the cooling efficiency of the cooling tower.

2. Improve the durability of the cooling tower: The packing in the cooling tower can be drafted to reduce its internal pressure, so that the cooling tower can withstand high temperature and high pressure, so as to improve the durability of the cooling tower.

3. Reduce the leakage of the cooling tower: The addition of packing inside the cooling tower can effectively reduce the leakage inside the cooling tower, so as to improve the operation efficiency of the cooling tower.

The installation of a layer of cooling tower packing can improve the cooling efficiency of the high cooling tower, improve the quality of cooling water, reduce the emission of pollutants, and reduce the erosion and wear of the filler. In addition, it can also reduce the energy consumption of tartar.

The answer is as follows: the impact is the lack of Li Shenjia's warmth and coldness, the song is "I am what you rely on", and I have not been able to meet anyone who can talk about the topic of common interest and disturbance.

Generally, after 5 to 8 years of normal use, the cooling tower needs to be replaced with 1 packing. Without normal maintenance, the packing needs to be changed once every 2 years. If there are any of the following abnormalities in the packing material in the tower, it should be replaced in time to make the thermal efficiency of the whole tower reach the predetermined target.

1. Scaling. The packing material in the tower body forms scale, which is generally the calcium carbonate scale attached to the packing, which is stone-like and has a relatively hard texture.

2. Sinking. Due to the heavy marl contaminated with the tower packing, a large number of algae organisms sometimes flourished, causing the filler to sink and become unusable.

3. Aging. After long-term use, the filler gradually gets old, brittle and easy to break due to the erosion of water and air. The aging of high-temperature tower packing is faster than that of ordinary towers, and it is generally replaced once every 4 to 6 years.

4. Improper selection or improper operation causes serious damage to the packing of the cooling tower. All types of cooling towers have design work index values, and incorrect selection will directly lead to serious damage and scrapping of cooling towers. In terms of important working indicators such as inlet water temperature and configuration tonnage, if the working index is greater than the design index value due to improper operation, it will also cause serious damage to the filler.

- Tengjia.

The packing of the cooling tower is a large hotbed for Hui organisms, and the breeding speed is very fast, and then sterilization and algae eradication will cause a large accumulation of microbiological corpses in the system. Moreover, PVC is a degradable plastic, and the PVC monomer is combined with the corpse of the Hui organism to produce the sludge that is easy to settle and attached to the powder on the surface of the heat exchanger, and its heat resistance is higher than that of hard scale, and the thermal efficiency of the system is very low. During the annual overhaul, the dredging work is very large, and it is not easy to construct, and sometimes chemical washing is used.

The cost is very high, the damage to the equipment is great, and the service life of the equipment is shortened. Due to the poor cooling effect of the tower, and the heat load of the production device, it is necessary to increase the circulating water to take away the heat of the system, and the energy consumption of the pump and fan increases accordingly, the aging of the packing, embrittlement, and deformation are serious, and the phenomenon of packing fragments blocking the pump and heat exchanger is serious. 'Seriously affect the continuous weighing operation of production.

The efficiency of the process plant is low and the production cost is high. Tengjia shared.

After a certain period of operation, the packing will age and break, and the performance of scattered water distribution will be reduced, and it is easy to produce trench flow. Decreased cooling effect; In addition, especially in the process of cooling water circulation, it is inevitable to produce marl, rust residue, microorganisms and other debris, which will also accumulate and block the packing intermittently, and the cooling effect of the cooling tower will be significantly reduced, so replacing the packing is also a process of clearing the blockage.

The most commonly used are dismantling and washing in the tower circulation.

The packing of the cross-flow tower is relatively easy to remove, but it is difficult to remove the Marley and imitation Marley (suspended type). Remove the filler, soak it in the descaling solution for about 2 minutes, and then rinse it with water. Note that most potions contain hydrochloric acid, and homemade FRP sinks are generally used as soaking pools.

The packing of the cross-flow tower and the counter-flow cooling tower is not easy to dismantle, so the valve of the inlet and return water is generally closed first, and the return port is closed if possible. Then put the potion in the cooling tower water tray, the concentration of the potion should be well controlled, to avoid corrosion of pipe fittings and structural parts, put a small water pump in the water tray, pump the potion to the upper part of the cooling tower to spray and cycle the packing for cleaning, it may take a whole day to clean the cycle. Pay attention to the corrosion of pipe fittings and rigid structural parts by the chemical solution, pay attention to the safety of man and machine, and operate carefully.

There are special cooling tower cleaners on the market, which can be found on the Internet.

The surface of FRP can be cleaned with a high-pressure water gun.

Do not use a high-pressure water gun to rinse the packing!!

The waste medicine should be neutralized with lime before it can be discharged, otherwise it will be very harmful to the environment.

1. Short-circuit cycle self-cleaning, 2. Soaking and rinsing with cleaning agent.

In the first method, if the cleaning solution is acidic, it is easy to damage the structural skeleton, and the speed is relatively slow, but the packing material is not easy to damage.

The second method, cleaning the packing separately, has no harm to the tower body, but the packing is easy to be damaged, the cleaning speed is fast, and the labor cost is large.

Both standard and medium temperature cooling towers are high-quality PVC, with a large growth coefficient of heat dissipation area, good water flow distribution, and relative flow of water vapor through the membrane.

The disturbance is large, and the heat dissipation performance is high; The high-temperature cooling tower is made of high-quality PP material that can withstand high temperature of 90 degrees, and the surface is processed into waves and patterns separately, with large spacing, which is not easy to scale and block, and can overcome the problems of poor circulating water quality. Its performance conforms to the Ministry of Energy's NDGJ88-89 "Technical Regulations for Cooling Tower Plastic Water Packing". - Tengjia cooling tower.

At present, the packing material in the cooling tower is: flame retardant polyvinyl chloride, commonly known as PVC. Now the cooling towers are made of this material! Trio Di cooling towers are also used.

Tengjia cooling tower packing is flame retardant polyvinyl chloride, commonly known as PVC.

The selection of the type of cooling tower packing should consider the requirements of the separation process, usually considering the following aspects:

1) The mass transfer efficiency should be high Generally speaking, the mass transfer efficiency of structured packing is higher than that of bulk packing.

2) The flux should be large Under the premise of maintaining a high mass transfer efficiency, a packing with a high pan-point gas velocity or gas phase kinetic energy factor should be selected.

3) The pressure drop of the packing layer should be low.

4) The filler has good anti-fouling performance, and is convenient for disassembly, assembly and maintenance.

Tengjia cooling tower sharing.