Cooling tower sprinkler آب پخش کن برج خنک کننده
Cooling tower sprinkler
Sprinkler Head is an engineering component that sprays and distributes water in the cooling tower. Another name for this equipment is water dispenser, which is a kind of distribution and spraying center for rotating and rotating water in the cooling tower. Sprinkler or water dispenser is produced and designed from various materials of aluminum, brass, cast iron and steel, which can be designed and used in various types of conical or circular cooling towers and in different sizes. Sprinkler can be designed and used in all types of cooling towers from 10 ton refrigeration capacity to 1250 ton refrigeration capacity from 2 inch to 12 inch size.
Simple Definition of Cooling Tower Sprinkler: The central part of a rotating water spraying system (rotating) in a circular open cooling tower is considered as a type of rotary or rotating cooling tower nozzle and is used only in a rotating water spraying system in a circular cooling tower .
History of Sprinkler Cooling Tower
Sprinkler was first designed in 1887 in England by 36-year-old Henry Parmell with a plastic material and then registered, which was first used in the fire protection industry, but over time, with increasing technology and industrial need for water dispensers. It was also used in other industries such as cooling towers .
But today, Dama Gostar company has the honor to introduce itself in the production and supply of the most diverse sprinkler or sprinkler in Iran, which since 1382 has offered more than 40 unique models of water dispensers with special engineering design to the market.
How the cooling tower sprinkler works
As mentioned, the sprinkler is basically a kind of nozzle (water dispenser) in a circular cooling tower. Sprays from sprinkler outlet pipes (perforated pipes) onto cooling surfaces (Packing Media). In other words, due to the rotational motion of the sprinkler, the pressure of the incoming water flow to the cooling tower is.
Different components of cooling tower sprinkler
A) The fixed part of the STATOR sprinkler
B) The moving part of the ROTOR sprinkler
The sprinkler in the cooling tower has two general and important parts. The first part in the sprinkler is a fixed part of the equipment that is closed on the main inlet pipe of the cooling tower. The second part of the sprinkler is the rotor or rotating part. In sprints larger than 4 inches, a lubricant is used to rotate the sprinkler or water dispenser. In high sizes, the sprinkler is equipped with an inlet due to the high pressure and flow of water at the inlet to the water. To add oil.
How to install a cooling tower sprinkler
As mentioned, the stator in the cooling tower sprinkler is connected to the inlet pipe of the circular cooling tower. The rotating stator part is fixed and tightened at the point of connection to the inlet pipe by an automatic screw. Also, in order to strengthen the sprinkler connection part, this part is sealed with mastic glue. After connecting the stator part of the cooling tower sprinkler head, the stator part is also adjusted by a certain number of perforated pipes with an automatic thread or screw. In large sizes of water cooler, the cooling tower is practically used with steel brackets and hooks to adjust the angle of the sprinkler outlet pipe.
Cooling tower sprinkler calculations
An important part of the cooling tower calculations is related to the sprinkler section. The water dispenser should actually have a certain number of outlets with a certain size based on the amount of circulating water. In order to calculate the inlet size of the sprinkler cooling tower, it is first defined that the allowable linear velocity at the inlet to the water dispenser should be defined between 4 to 6 feet per second. According to knowing the allowable linear velocity at the sprinkler inlet or water dispenser and based on the cross section of any given size of this part, based on the formula Q = VA, the amount of standard circulating water at the sprinkler inlet in the cooling system is determined. Now, according to the Bernoulli relationship in fluids, the number and size of the outlet are determined based on the minimum pressure drop.
Summary of Bernoulli relation in calculating the number and size of cooling tower sprinkler outputs:
In the above relation, D is the inlet diameter of the sprinkler and d is the outlet diameter of the water cooler, and N is the number of outlets of the cooling tower sprinkler.
For example, for a 2-inch sprinkler, 4 1-inch outputs are used.
The table below shows the technical and detailed specifications of inlet size, outlet size, number of outlets and circulating water flow in the cooling tower water dispenser.
Types of cooling tower sprinklers
Due to the cooling capacity of the cooling tower, the sprinkler is responsible for distributing a certain amount of water from the circulating water flow. Based on this, the cooling tower sprinkler is designed and used in various sizes. In order to determine the size of the water inlet and outlet in the water dispenser, the flow rate of the circulating water in the cooling tower must be taken into account.
Based on the flow rate of the cooling tower , the sprinkler (water dispenser ) is classified into different sizes, which can be produced and designed from 2 inches to 12 inches.
Sprinkler is produced and supplied in different types of metal and polymer materials. In fact, based on the amount of circulating water flow, refrigeration capacity, connection size, working pressure and type of sprinkler, it is produced and supplied in different types, each of which has special advantages and disadvantages, which we will describe in detail below.
Types of cooling tower sprinkler materials
1- Sprinkler aluminum cooling tower
Water dispenser Aluminum cooling tower produced using raw aluminum (Alloy) ingots and machined based on the required size and specifications. Aluminum sprinkler is the most used in cooling towers. This type of cooling tower sprinkler from 2 to 12 inches is produced and supplied by the lathe in two types of threads and automatic screws.
Advantages of aluminum sprinkler:
- Being light
- Low working pressure and consequently lower energy consumption (circulator pump head)
- Economic cost-effectiveness compared to brass, steel and cast iron sprinklers
- Has a lubrication system in sizes over 4 inches
- Easy and convenient installation in any period of maintenance and maintenance of the cooling tower
2- Sprinkler cast iron cooling tower
Cooling tower water dispenser is usually produced and supplied from cast iron material using casting method. This type of cooling tower sprinkler has ready-made molds in different sizes that are cast by Cost Iron. Cast iron sprinkler has more weight and higher working pressure compared to aluminum. This model of cooling tower sprinkler is used in conditions where the circulating water pressure is high and has the ability to rotate and distribute water with high flow. Cast iron water dispenser is produced and molded from 4-inch to 16-inch size.
3- Brass cooling tower sprinkler
This type of water dispenser cooling tower is considered to be the best material in the production and design of water spray system. Cooling tower brass sprinkler is manufactured and designed in the same way as aluminum. The most important advantages of brass sprinkler are high durability, no fouling, no grip (severe clogging of the rotating part) and also smooth and noiseless operation. Of course, the price of brass sprinkler will be very different compared to other production materials.
This type of cooling tower water dispenser is more recommended in the application of chiller cooling tower in air conditioning system. In building air conditioning systems, or more simply in the chiller cooling tower, the use of brass sprinklers is highly recommended. The input and output sizing system and the brass and aluminum sprinkler turning mold are exactly the same.
Advantages of brass sprinkler cooling tower
- Lack of sprinkler susceptibility to evaporation and constant water circulation in the cooling tower
- High resistance to corrosion and rot against water
- Long life and high resistance to the forces of circulating water viscosity flow
- High resistance to water pressure at the inlet of the cooling tower
- Has a lubrication system in sizes over 3 inches
4- Plastic cooling tower sprinkler
Sprinkler or plastic water dispenser of cooling tower is another type of cooling tower revolving water, which is mostly used due to low sedimentation and high durability in cooling tower types with low circulating water flow. The material used in the production of this type of water dispenser is made of polypropylene material by plastic injection method. Due to the low resistance to water pressure line pressure tolerance, this type of cooling tower sprinkler is mostly produced and offered in small sizes of 2 inches to 4 inches. The connection type of this model is a threaded cooling tower water diffuser from the inside.
Price of cooling tower sprinkler
In fact, repairing and replacing the cooling tower sprinkler periodically is one of the most important parts of an overhaul in a cooling tower. Because the sprinkler is a part that is constantly spinning and circulating water, this part constantly needs to be inspected, replaced and lubricated. Estimating the price of the cooling tower sprinkler is one of the most important parts of maintenance and maintenance in the cooling tower . In order to accurately estimate the price of a cooling tower sprinkler, two important issues need to be identified. One of the basic concepts that have a great impact on the price is the cooling tower water dispenser material. In water dispenser pricing, in addition to the material used, the size can also be effective in determining the price of the sprinkler. In order to download the price list of Sprinkler, please contact the company's experts.
گ Damagoster Company with its efficient engineering team has the honor to provide the lowest price and the highest quality to the general industrial factories and مص بع as the top manufacturer in the water dispenser industry.
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