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1. The size of the water-spraying filler forming piece should meet the design requirements, the allowable error of the length and width of the forming piece is 10mm, and the sheet type should be rectangular; The thickness of the thinnest part of the forming piece shall not be less than; The damaged eyelets of the sprinkler plate shall not exceed 20 m 2, the dispersion shall not exceed 5 10cm 10cm, and the broken hole diameter shall not exceed 2mm; The edges of the formed pieces should be straight, without cracks or obvious chips.
2. The allowable error of the spacing between the pieces of the water-spraying packing assembly block is not greater than . The allowable error of the main dimensions of the sheet shape shall not be greater than 5%, and the maximum error shall not be greater than.
3. The water-spraying filler can be assembled into blocks by means of socket type, tie rod type, bonding type, etc., and various assembly methods should ensure that the connection is firm and the overall stiffness is good. When using tie rod type, its tie rod strength should meet the following requirements: tensile strength is greater than or equal to bending strength greater than or equal to; When using the bonding type, the binder must have the properties of water resistance, heat resistance (65), cold resistance (-35), aging resistance, etc., and the shear strength after bonding for 24 hours should not be less than, and the test method of bond strength is carried out according to "HG 2-151-65".
The intact rate of the bond point should be more than 90%.
4. The water-sprayed packing assembly block should have sufficient stiffness and strength. Under the action of 2942n m 2 uniform load, there should be no obvious deformation at the support place and the loading surface, there should be no residual deformation after unloading, and there should be no loosening phenomenon at the connection point between the sheets.
Material, you find a veteran to help you take a look, now the quality of buying things is not guaranteed, it is best to get a sample of the material to go to the special material inspection department for inspection.
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In fact, the purchase of cooling tower packing should first look at what form of cooling tower is used (cross-flow tower, counter-flow square tower, counter-current round tower), and secondly, it is necessary to look at the cooling tower's own requirements for the packing; The selection of cooling tower packing not only depends on its appearance (stripes, cutting, color), but also whether it is blister (blister itself has relatively high requirements for material) or molding from various small links; Then there are simple methods to test: 1. Set the temperature to test the thermal resistance of the filler (if the deformation starts at 40-45 degrees, the material has poor UV resistance), except for high-temperature fillers; 2. Use an open flame to test the flame retardant performance of the filler; 3. Spray water to test the hydrophilic performance of the filler (the surface of the filler is film-forming in the water, which is conducive to heat exchange).
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Look at the color, appearance and hardness and brittleness, the manufacturer**.
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What is the specific content of the construction standard of cooling tower packing, the following Zhongda Consulting will answer for you.
As the main core of circulating water heat dissipation in industrial production, cooling towers affect the cost and efficiency of industrial production in China. Improper use of cooling towers in industrial production will cause untimely heat dissipation of equipment, production stagnation, and the danger of high water temperature. Cooling tower packing is a major factor in promoting hydrothermal circulation, therefore, it is important to choose a high-quality cooling tower packing.
Standard size of cross-flow cooling tower packing.
The distance between the top of the cooling tower packing and the lower end of the fan should be a multiple of the diameter of the fan.
Counterflow cooling tower packing accompanies the standard angle.
1.When constructing a counterflow cooling tower, the angle between the top of the packing and the airflow section should be controlled within 90 degrees, the flat top cover should be used, and the deflector should be controlled between 90-120 degrees at the angle of the water collector and the airflow section.
2.For the top of the shrink tower, the top angle of the cover plate of the shrinkage section should be controlled between 90-110 degrees.
3.The inclination angle of the water filler is controlled between 5-8 degrees.
4.In the process of use, in order to prevent a short circuit between the air and the bottom of the packing to the water surface, backup circulation measures should be set up.
How to clean the cooling tower packing.
Cooling tower packing cleaning method (1):
Manual cleaning of the sludge shed in the cooling tower;
Use a high-pressure water gun to repeatedly rinse the filler to remove the sludge and scale under the cleaning;
Dissolve the TNB safe and efficient descaler with hot water of about 50 and rinse the packing repeatedly with a flushing pump until the scale is rinsed clean (if the filler has a long service life, causing aging and collapse, it is recommended to replace the filler), and at the same time add bactericidal algaecide to completely kill biological algae and bacteria;
After confirming that all parts of the system are cleaned, the sewage is discharged;
Rinse the packing and the inside and outside of the tower with clean water;
Everywhere in the restoration system, it can be used with hydration;
After all are restored, Party A's management personnel are requested to accept them;
Evacuate Party B's belongings and clean up the site;
Construction period: according to the actual situation.
Cooling tower packing cleaning method (2):
1. Temporarily build a large pool with plastic sheeting;
2. Add the cleaning agent to clean water;
3. Remove the packing from the cooling tower and soak it in the medicine pool; Royal brother.
4. Rinse the soaked filler with clean water and put it back into the cooling tower;
5. Use the deployment of the agent to attack the cooling tower water replenisher, and soak the water replenisher mouth to dredge;
6. Use the same method to remove the scale from the chassis of the cooling tower;
7. Rinse the packing and the inside and outside of the tower with clean water;
8. Everywhere in the recovery system, it can be used by replenishing water;
9. Construction period: according to the actual situation.
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There are many types of cooling tower packing, 1: from the tower type, there are round tower packing and square tower packing2: From the specifications of the tower, it is divided into counterflow tower packing and cross-flow tower packing. From the perspective of the original reputation of the filler material, there are flame retardant and high temperature resistance.
These fillers are routinely used.
The first type of spot wave packing is suitable for use in square row cooling towers or cross-flow cooling towers. The advantage of this kind of point wave filler is that the cooling effect is good, the product itself is relatively light in weight, good in pH resistance, high in cooling efficiency, and has a water collector on both sides, which has a good water collection effect. It has a wide range of applications and can be used in temperatures ranging from minus 60 degrees to minus 35 degrees, and it is easy to install and replace.
The bottom type of filler is a circular filler, also known as an oblique staggered filler. It is a circular cooling tower, which can be said to be a special packing heat sink for counter-current cooling towers. The cooling tower packing of this specification is not only good cooling effect, but also has low ventilation resistance and good hydrophilic performance.
There is also the width of the filling of the meat model that can be customized.
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