Energy saving square counter flow fiberglass cooling tower

Product Description    
Product type: Countercurrent closed cooling tower
Cooling medium: water, oil, or other liquids
Material of condenser: copper tube condenser, stainless steel tube condenser
Shell material: 304 stainless steel sheet, 720g super galvanized sheet imported from South Korea, magnesium aluminum zinc plated sheet

Working Principle 
Internal circulating water system: The circulating water enters the heat exchanger (also known as the closed cooling tower coil) through heat exchange and temperature rise. The waste heat contacts the falling spray water through the outer wall of the coil for heat and mass exchange, and alternates with the dry cold air entering the side (single or double side) to form saturated humid hot air. The cooled circulating water is sent to the heat source by the system circulating water pump.
External circulating water system: The spray water is sent from the lower water tank to the upper water distribution pipeline by the spray water pump. After the water is sprayed out, it comes into contact with the heat exchanger pipe, and some of the water evaporates and carries out heat. The heat is discharged by the top fan, while the water is blocked back by a special structure dehydrator and sprayed into the collection tank for recycling.

Product Features
Internal circulating water system: The circulating water enters the heat exchanger (also known as the closed cooling tower coil) through heat exchange and temperature rise. The waste heat contacts the falling spray water through the outer wall of the coil for heat and mass exchange, and alternates with the dry cold air entering the bottom of the cooling tower (double-sided or four sided) to form saturated humid hot air. The cooled circulating water is sent to the heat source by the system circulating water pump.
External circulating water system: The spray water is sent from the lower water tank to the upper water distribution pipeline by the spray water pump. After the water is sprayed out, it comes into contact with the heat exchanger pipe, and some of the water evaporates and carries out heat. The heat is discharged by the top fan, while the water is blocked back by a special structure dehydrator and sprayed into the collection tank for recycling.

Working Principle of Evaporative Condenser
A closed square cooling tower is the main heat exchange equipment in a refrigeration system. Its working principle is that the overheated and high-pressure refrigerant gas discharged by the compressor in the refrigeration system passes through the condenser discharge pipe in the evaporative condenser, allowing the high-temperature gaseous refrigerant to exchange heat with the spray water and air outside the discharge pipe. That is, the gaseous refrigerant enters the discharge pipe from the upper port and gradually condenses into liquid refrigerant from top to bottom. The super strong wind force of the supporting induced draft fan ensures that the spray water evenly covers the surface of the coil, and the water greatly improves the heat exchange effect by taking advantage of the wind force. The spray water with an increase in temperature changes from a partially gaseous state, utilizing the latent heat of water vaporization to carry away a large amount of heat by the wind. The water droplets in the hot air are intercepted by the high-efficiency dehydrator, and together with the other water that absorbs heat, they scatter into the PVC spray water plate heat exchange layer. The air that flows through them cools down, lowers the temperature, enters the water tank, and then continues to circulate through the circulating water pump. The water evaporated into the air is automatically replenished by the water level regulator.

Technical Characteristics
Simple structure, easy to install

The Langshi square electric cooling tower integrates a shell and tube water-cooled condenser, cooling tower, circulating water pump, water tank, and water pipeline. It adopts an upper and lower box assembly method, which has the advantages of complex structure, small footprint, light weight, few connecting pipelines, and convenient installation. It greatly reduces the on-site construction intensity and reduces installation costs.
Good usage effect and low operating cost

The positive square cooling path has a unique structural form and efficient heat exchange performance, resulting in a relatively low condensation temperature and good effect. Therefore, the operating power is small and the power consumption is low. Its advanced operating principle and excellent sprinkler matching device also reduce the consumption of cooling water. In addition, the materials used have good anti-corrosion properties, which extends the service life. Equipped with large flow axial fans, it has low noise and does not pollute the environment, making it a truly energy-saving and environmentally friendly product. The maintenance is also simple, and the operating cost is relatively low.

Excellent Components
High flow water pump
Dedicated high flow circulating water pump: equipped with high protection IP55 and outdoor dedicated motor, it has the characteristics of low power, high flow rate, low noise, excellent performance, and easy maintenance.
Dedicated axial flow fan
Closed square cooling tower dedicated high flow axial fan, fan impeller made of aluminum alloy blades, lightweight, strong anti-corrosion ability. The air duct is made of corrosion-resistant and aging resistant high-quality fiberglass, and the fixing bolts are made of stainless steel material to ensure the roundness of the air duct. The gap between the impeller and the air duct is kept consistent and even, increasing the flow rate and reducing noise. The supporting motor adopts an IP55 self cooling high protection motor, which runs smoothly and has high efficiency.
Outer protective panel
The outer protective panel is made of high-quality fiberglass, which has the characteristics of corrosion resistance and aging resistance, and extends its service life.
High flow sprinkler nozzle
The closed square cooling tower adopts a large flow spray nozzle in the sprinkler system, which has the characteristics of high flow rate, uniform spraying, and no blockage phenomenon. It can maximize the coverage of the wall pipe by the sprinkler, increase water vaporization, and improve heat transfer efficiency.
Electronic water descaling instrument
If users have special needs (to be specified when ordering), they can be equipped with advanced electronic water descaling devices, which can effectively play a role in rust prevention, corrosion prevention, scale prevention, scale removal, sterilization, and algae killing, activating and cleaning the circulating water. Good usage effect and low operating cost.
PVC heat exchanger plate
The high-efficiency PVC filler from Sichuan has the advantages of small wind resistance, aging resistance and no deformation, which makes water form a large area of water film when passing through the filler. The zigzag water flow ripple extends the water flow time, makes the flowing air take away the heat in the water, and improves the cooling effect of circulating water.
Efficient dehydrator
The use of PVC material dehydrators not only effectively prevents biochemical corrosion and erosion, but also effectively aggregates moisture in humid air according to its unique curved form, making the water flow rate less than 0.001%.

Equipment Selection Procedure
Taking the refrigeration and air conditioning system composed of piston or screw refrigeration compressors as an example.
The total heat output of the refrigeration system (both open and semi closed, the same for fully enclosed compressors)=the refrigeration capacity of the compressor+the power consumption of the compressor motor (auxiliary quantity, calculated in KE) multiplied by the heat holding coefficient, as shown in the heat dissipation coefficient table. Based on this result, select the appropriate model from the technical parameter table of the closed square cooling tower.
1. Determine the total heat dissipation required by the system;
2. Determine design conditions, condensation temperature, and wet bulb temperature;
3. Choose an appropriate coefficient to determine the correction factor:
4. Multiply the total system displacement by the heat dissipation coefficient to determine the corrected result
5. Select a closed cooling tower from the technical parameter table, and select a standard heat discharge equal to or greater than the fourth step to calculate the correction result.
Selection examples
Example 1: It is known that the cooling capacity of a certain refrigeration and air conditioning system's compression mechanism is 232.6KW, refrigerant is NH3 (R717), condensation temperature is 36 ° C, temperature bulb temperature is 27.4 ° C, and the power consumption (axial rate) of the compressor is 48KW
Selection Procedure
Total heat dissipation (232 6+48) =280.  6KW
According to the heat transfer coefficient table, the heat transfer coefficient for 36C and wet bulb temperature of 27.4 ° C is 1.236
Total heat output x heat output coefficient=Corrected heat output load:
280.6×1.236=346.8KW
One ZNXA350KW or (ZNXB350KW) closed square cooling tower can be selected from the technical parameter table.
Example 2: It is known that the compression mechanism of a certain refrigeration and air conditioning system has a cooling capacity of 1116KW, refrigerant: NH3 (R717), condensing temperature: 35 ° C, and wet bulb temperature: 25 ° C; The power consumption (shaft power) of the compressor is 213KW.
Selection Procedure
Total heat output: (1116+213)=1329KW
According to the heat transfer coefficient table, the condensation temperature of 35 ° C and the wet bulb temperature of 25 ° C have a heat transfer coefficient of 1.05
Total heat output X heat output coefficient=corrected heat output load
1329 X 1.  05=1395.  45KW
One ZNXA1450KW or (ZNXB1450KW) closed square cooling tower can be selected from the technical parameter table.
Ammonia (R717) heat dissipation coefficient

(R22 and 134a) Heat removal coefficient