Hello, I would like to consult you about the cooling tower selection parameters

For your question, I have consulted carefully with the technical department, and the technical department said: There is a problem with your problem.

1. What is the wet-bulb temperature of the cooling tower?

Wet-bulb temperature and cooling towers have nothing to do with each other.

For example, today's wet-bulb temperature in Huizhou is 22 degrees, which is only related to the environment, not the cooling tower.

2, Cooling power? It can be understood as the cooling capacity of the cooling tower. For example, the cooling capacity of our Yeti closed circuit cooling tower ZXZ-100 is 580KW.

The ZXZ-30 has a cooling power of 174kW.

The wet-bulb temperature is not compatible with those of you, the wet-bulb temperature is different in each place, depending on the best you are, such as Jiangsu, Zhejiang and Shanghai, it is generally a degree, and sometimes it is only 22 degrees in Xinjiang, and the wet-bulb temperature is related to the region. The cooling power you are talking about, if you choose the cooling tower, you should choose the high temperature of the former, and the latter choose the temperature, your parameter 67-40, I don't know where it comes from, the theoretical temperature of 67 degrees, when used on the cooling tower, it is best to build a pool. The high temperature parameter of the cooling tower standard treatment is 60-35 degrees, and this parameter of 40-34 degrees is not the standard parameter of the cooling tower, and the standard is generally 42-32 degrees.

This is a special parameter, which requires the cooling tower manufacturer to calculate the specific model with software. It's a good idea to tell us what kind of equipment you're using such cooling towers.

Upstairs is right, the specific selection can only be selected by finding the local wet ball. Kim Ri cooling tower.

1.First of all, determine the amount of cooling water, if the conventional cooling tower can meet the cooling requirements, you can match the corresponding model of cooling tower.

2.Optional industrial tower with a large cooling coefficient.

3.The space is limited, and multiple square towers can be connected in parallel.

4.If the noise requirements are strict, ultra-low noise or cross-flow towers can be selected.

-Tengjia cooling tower can be customized according to customer requirements.

The specifications of the round cooling tower are: 10 tons, 15 tons, 20 tons, 30 tons, 40 tons, 50 tons, 60 tons, 70 tons, 80 tons, 100 tons, 125 tons, 150 tons, 175 tons, 200 tons, 250 tons, 300 tons, 350 tons, 400 tons, 450 tons, 500 tons.

The specifications of the integral square cooling tower are: 100 tons, 125< 1 50 tons, 175 tons, 200 tons, 250 tons, 300 tons.

The specifications of the combined square cooling tower are: 200 tons, 300 tons, 400 tons, 500 tons, 600 tons, 800 tons, 1000 tons Tengjia cooling tower sharing.

1. According to the temperature of the cooled water, the cooling tower selection includes: high temperature tower, medium temperature tower, and normal temperature tower.

2. According to the current situation of the installation location and the requirements for noise, the selection of cooling towers includes: cross-flow tower and counter-flow tower.

3. Select the cooling water according to the cooling water volume of the chiller, and in principle, the water volume of the cooling tower should be slightly greater than the cooling water of the chiller.

4. When choosing multiple water towers, try to choose the same type of cooling tower.

Secondly, the selection of cooling towers needs to pay attention to:

1. The structural materials of the cooling tower should be stable, durable, corrosion-resistant, and accurately assembled.

2. Uniform water distribution, less wall flow, reasonable selection of splashing device, not easy to block.

3. The type of cooling tower water filler meets the requirements of water quality and water temperature.

4. Fan matching, can ensure long-term normal operation, no vibration and abnormal noise, and the blades have good water erosion resistance and sufficient strength. The installation angle of the fan blades can be adjusted, but the angle should be consistent, and the current of the motor does not exceed the rated current of the motor.

5. Low power consumption and low cost, small and medium-sized steel skeleton glass cooling towers also require light weight.

6. Cooling towers should be avoided as far as possible near heat sources, exhaust gas and flue gas generation points, chemical stacks and coal piles.

7. The distance between cooling towers or between towers and other buildings, in addition to considering the ventilation requirements of the towers and the interaction between towers and buildings, the safety distance of fire prevention and explosion-proof buildings and the construction and maintenance requirements of cooling towers should also be considered.

8. The direction of the water inlet pipe of the cooling tower can be rotated according to °.

9. The material of the cooling tower can withstand -50 low temperature, but it should be stated when ordering for areas with an average temperature lower than -10 in the coldest month, so as to take anti-icing measures. The cost of cooling towers increased by about 3%.

10. The turbidity of circulating water is not more than 50mg l, and the short-term turbidity is not more than 100mg l, which should not contain oil and mechanical impurities, and algae killing and water quality stabilization measures should be taken if necessary.

How to choose a cooling tower Tengjia reminds you to pay attention to the following points:1FRP cooling tower packing:

Packing is the heart of the cooling tower, there are raw materials and recycled materials, the service life of raw materials is about 15 years, and the recycled materials are generally replaced within 5 years, accounting for about 35% of the total price, the quality of the packing determines the service life of the design, and the processing mode of the cooling tower packing determines the effect of heat dissipation and water collection, which directly affects the operating cost of the equipment.

2. Cooling tower fan: the fan is made of cast aluminum and aluminum alloy, the aluminum alloy has better strength, the shape is divided into flat plate and airfoil, the air volume generated by the airfoil type is larger, and the heat dissipation effect will be better.

3. FRP cooling tower water distribution system is divided into hole water distribution and nozzle water distribution, the nozzle water distribution will be more uniform, and it is not easy to block, in addition, because the cooling tower is placed in the open air, in order to avoid dead leaves and other dirt falling on the sowing basin and causing blockage, it is necessary to add a cover to the sowing basin to prevent dirt from falling into the dirty blockage.

4. Cooling tower fasteners: In order to facilitate later disassembly and maintenance, 304 stainless steel bolts need to be selected.

5. FRP cooling tower motors, belts, and bearings are generally purchased parts, and the use of well-known brands will have quality assurance.

6. Cooling tower shell and structural parts: Tengjia cooling tower manufacturers only use FRP material as the shell of the cooling tower, and the structural parts are hot-dip galvanized steel.

Cooling towers are divided into closed cooling towers and open cooling towers according to whether water and air are in direct contact.

1. Open cooling tower.

The cooling principle is that the circulating water is sprayed onto the packing of glass fiber in the form of spray, and the heat exchange is achieved through the contact between water and air, and then the fan drives the air flow in the tower to circulate and bring out the hot air flow after heat exchange with water, so as to achieve cooling. In this cooling method, the initial investment is relatively small, but the operating cost is higher (water consumption, electricity consumption).

2. Closed cooling tower.

The cooling principle is, in simple terms, two cycles: an inner cycle and an outer cycle. There is no packing, and the main part is a copper tube surface cooler.

Internal circulation: docking with the target equipment to form a closed circulation system (the circulating medium is soft water). Cooling is performed for the target equipment, and the heat from the target equipment is brought out to the chiller.

External circulation: In the cooling tower, the cooling tower itself is cooled. It is not in contact with the internal circulating water, but only through the copper tube surface cooler in the cooling tower for heat exchange and heat dissipation. In this cooling method, the operation of the motor is set according to the water temperature by automatic control.

Two cycles, in the case of high ambient temperatures in spring and summer, need to run both cycles at the same time. The ambient temperature in autumn and winter is not high, and in most cases only one internal circulation is used. Tengjia shared.

The basic conditions are known and the common formula for selecting the cooling tower: cooling water = main engine cooling capacity (kw) cooling water = main engine condenser heat load (kcal h) cooling water = main engine condenser heat load (m3 h).

Cooling water = main engine cooling capacity (refrigeration tons).

Cooling water = heat load of the main engine evaporator (kcal h) Cooling water = heat load of the main engine evaporator (m3 h).

Cooling water volume = host evaporator heat load (cooling tons).

Note: The above is the selection margin and the condenser load factor.

For example, the cooling capacity of lithium bromide host per 1 million kcal is:

Working conditions: , cooling water flow: 300 330m3 h) with 350-400 tower;

Working condition: 37 30 28, (cooling water flow: 248m3 h) with 450 towers. Tengjia cooling tower sharing.

The shape and size of the cooling tower vary from model to model, and there are differences between manufacturers, but they are not too big. If the height of the factory is not enough, one or more units can be considered in series. When you buy again, you can also consult the seller of Triowi cooling tower, generally speaking, as long as you have this need, you can consult the seller, he can help you calculate and suggest and recommend.

After installation, they will maintain it for you, and Triowi cooling tower will analyze it for you.

You are a Texas cooling tower manufacturer, the size of the cooling tower needs to be professionally calculated, according to the air volume, flow, water density, air-water ratio and power consumption ratio to determine, not a sentence can be solved.

The steam-water ratio of the cooling tower refers to the ratio of the air flow rate inside the cooling tower to the water flow rate, which is generally expressed by n. The steam-water ratio of the cooling tower is an important parameter that affects the cooling effect, and it is generally necessary to make a reasonable selection and calculation according to the type, structure, working conditions and other factors of the cooling tower. There are several ways to calculate the steam-water ratio of a cooling tower:

Theoretical calculation and high flutter training algorithm: The hole theory calculation method is based on the principle of heat and mass transfer inside the cooling tower, establishes a mathematical model, and solves the value of the steam-water ratio through integration or iteration. This method can only obtain more accurate results, but the calculation process is more complex and needs to consider the influence of many factors, such as air and water temperature, humidity, pressure, flow rate, type of filler, etc.

Empirical calculation method: The empirical calculation method is based on a large number of experimental data and empirical formulas, simplifying the calculation process and quickly obtaining an approximate value of the soda ratio. This method saves calculation time, but the accuracy and applicability of the results are limited and need to be selected and corrected according to the specific cooling tower type and operating conditions.

Back-calculation method: The back-calculation method is based on the parameters such as the inlet and outlet water temperature of the cooling tower and the outdoor wet and dry bulb temperature measured during the actual operation of the cooling tower, and the value of the steam-water ratio is inverted. This method can reflect the actual operating state of the cooling tower, but it requires reliable measurement equipment and data processing methods.

The above is the calculation method of the cooling tower's steam-water ratio. Hope it helps.

Cooling water = main engine cooling capacity (kw).

Note: The above is the selection margin and the condenser load factor.

According to the calculation of the main engine refrigeration capacity provided, the flow rate is 260 tons in the cooling tower, but according to the temperature requirements of the inlet and outlet water, the approximation degree between the return water temperature of the cooling tower 30 and the wet bulb 27 degrees is 3 degrees, so that the corresponding cooling efficiency of the flow rate of the cooling tower is less than 80%, and the water area and air volume of the cooling tower need to be increased, and the tower type of 300 tons is bound to meet the working conditions;

Cooling water volume 250-300t h, factory direct sales discount ** cooling tower business contact.

You can go to the "China Cooling Tower Procurement Network" to view cooling tower selection information and other cooling tower information.

Tengjia cooling tower calculation description: 1. The circulating water volume is gradually lost due to the following factors during the operation of the cooling tower: a When the hot water and cold air are exchanged in the tower, part of the water will become gas and evaporate; b. Since the cold air is pumped with mechanical power (motors and windmills), some of the water will be pumped out at high wind speeds; c Due to the repeated cycle of cooling water, the concentration of solids in the water is increasing day by day, which affects the water quality and is prone to the growth of algae moss, so it must be partially discharged and supplemented with fresh water.

2. Calculation of recharge water: a evaporation loss water (e) e = q 600 = (t1-t2)*l 600 e represents evaporation water (kg h); q stands for heat load (kcal h); 600 represents the latent heat of evaporation of water (kcal h); t1 represents the inlet water temperature ( ), t2 represents the outlet water temperature ( ), l represents the circulating water volume (kg h) b, splash loss water (c).

The amount of spatter loss of the cooling tower is determined by the design type of the cooling tower, wind speed and other factors. Under normal circumstances, its value is about equal to about the amount of circulating water. c. Periodic discharge of water loss (d).

The loss of water discharged on a regular basis depends on factors such as water quality or solids concentration in the water. Generally, it is about the amount of circulating water. dRecharge water (m) The total recharge water of the water tower loop water is equal to m=e + c + d

When the cooling tower is used for air conditioning, the temperature difference is designed at 5, and the make-up water required by the cooling tower is about 2% of the circulating water.