Refrigeration equipment: / soup

Product design performance parameters: According to the provisions of GB7190.1-1997 : the standard cooling tower design wet bulb temperature is 28 °C , in general, the cooling water tower designed according to the wet bulb temperature of 27 °C can be well ventilated, no other special environment The northern part of the microclimate is normally used, but the feedback from the operation of the cooling tower that has been collected for many years shows that in some southern areas, the wet and hot weather conditions or some buildings with poor ventilation and easy to form a high temperature environment and small climate, according to the wet The 28 °C design of the cooling tower shows its excellent heat dissipation and extraordinary strain capacity, giving engineers, installers and users a sense of peace of mind.

The cooling tower is determined to adopt the temperature of 28 °C in the design of the water tower technology to ensure the high quality of the water tower.

Standard, high temperature, ultra low noise design conditions:

Water temperature of the tower is 37 °C   Outlet water temperature 32 °C

Wet bulb temperature 28 °C   Dry bulb temperature 31.8 °C

Cooling tower performance introduction:

1 ,   Overall effect: Cooling tower theory is a highly integrated and experimental system discipline. The company's scientific and technical personnel have comprehensively processed the test data on the basis of many years of thermal test tests on the cooling tower, and based on computer calculations, the peak volume of the 35°-20-75° trapezoidal wave water filling volume The coefficient Βxv , choose the Zuijia gas-water ratio, the Zuijia cross-section water load, the cross-section gas load and the high efficiency of the packing height to determine the volume of the packing, and comprehensively design the shape and structure of the tower from the hydrodynamic point of view, according to the test estimate Ventilation resistance, reference fan characteristic curve and test data optimization selection, meet the air volume requirements and meet the noise standard of the fan and the matching motor, so that the cooling effect, energy consumption, noise, appearance to achieve an optimized system effect.

2 ,   Structural features: A , packing: high temperature type, ultra low noise type cooling tower packing is made of modified PVC (polyvinyl chloride) flat sheet by hot calendering. The function of the watering filler is to splash the hot water that needs cooling. Water droplets are formed and a water film is formed to increase the contact area and contact time of water and air, that is, increase the heat exchange intensity between water and air. The cooling process of water is mainly carried out in the water-filling filler, in which water and air exchange heat exchange and mass exchange. The cooling effect of the cooling tower is highly dependent on the heat exchange performance of the water-filled packing. The water-filling filler with good performance has high heat-dissipating capacity. The advantages of the design of the shell surface structure and the combined method of the diamond- filled ( 35×20-75° ) trapezoidal wave water-filling filler are as follows:

1 ,   The heat dissipation area has a large growth factor.

2 ,   The distribution of water flow on the board surface is good.

3 ,   The water and air flow through the board surface and the disturbance is large.

B. Fan performance: After comparison test, the cooling tower fan uses a low-speed space twisting forward-inclined aluminum alloy cooling tower dedicated fan. The fan product can fully ensure the cooling tower's air volume, wind pressure, noise and drifting level and running performance meet the technical requirements under various working conditions. Its performance characteristics are:

1 ,   The fan blades are made of aluminum alloy plate. The angle of the fan with the machine number > 12# can be adjusted. When the season changes, the blade installation angle can be changed to adjust the air volume and wind pressure to improve the efficiency of the device and achieve energy saving.

2 ,   The fan adopts large chord length, space distortion, forward-inclined air type, low-speed driving, achieving uniform wind speed at the air outlet, large air volume, high efficiency, low noise and low power consumption.

3 ,   The blades are balanced and the balance accuracy is ISO-2.5 .

C , water distribution part performance:

The function of the water distribution system is to evenly splash hot water onto the entire water-filled packing. The performance of the distribution of water distribution will directly affect the uniformity of air distribution and the ability of the filler to exert cooling. The Lingfeng LFT series cooling tower adopts a rotating tube type water distributor, and uses the reaction force of the water sprayed on the water outlet of the shower hose to push the water distribution pipe to rotate, so that the surface of the water spray filler can be alternately distributed. The advantages of using this water distribution method are:

1 ,   Low water supply pressure and energy saving.

2 ,   The uniformity of the cloth water is good.

3 ,   The water pipe is equipped with a water retaining plate, which has a certain function of promoting uniform water distribution and eliminating drifting water. The rotor part of the water distributor is made of copper alloy, which has compact structure, high strength and no corrosion. After practical inspection, the water distributor has low failure and stable performance.

D , tower structure and performance:

The tower body is made of high quality FRP material, and the surface gel coat is made of imported raw materials. The colorant contains UVS light stabilizer to make the color bright, uniform color, not easy to fade, anti-aging, long-lasting luster . All steel structure parts Both are hot-dip galvanized . A large number of injection molded parts are used, which are corrosion-resistant, high-strength, light-weight, versatile and easy to assemble.

The design of the cooling tower successfully controlled the drifting problem, and the drifting loss was less than 0.001% . The measures were :

1 ,   Try to use a low-speed fan to avoid excessive water mist being carried into the air.

2 ,   The water pipe is provided with water-tight sleeves to collect splashed water droplets.

3 ,   The design of the bottom basin is larger than the diameter of the outer casing, and the 100-page air inlet of the PVC is installed to effectively prevent water from splashing out of the tower.

Low noise, using noise control principle:

1 ,   Reduce the noise of the sound source. The motor is fully enclosed and self-cooling low-noise cooling tower. The motor has good waterproof performance and low noise, and can meet the special requirements of the cooling tower.

2 ,   Block the noise propagation path.

3 ,   Receiver protection measures.

Change the past barrier noise path, which is a way to cure the symptoms. LFT uses a combination of the two to treat both the symptoms and the root causes. The edge, the air inlet and the silencer use the principle of sound wave reflection to achieve the purpose of sound insulation.