1. The two cooling principles are the same. The specific choice depends on the place you use and the building structure. If you don't know how to choose, you can find a professional to design a reasonable ventilation and cooling scheme according to the site conditions.
2. The water curtain fan cooling system is used in combination with the negative pressure fan. The negative pressure fan makes the indoor air pressure lower, and the outside air enters through the cooling water curtain to achieve the effect of ventilation and cooling. It has the advantages of small investment, good cooling effect and low operation cost. Disadvantages no water can not cool down, closed environment effect is good
3. The cooling principle of "water curtain wall + negative pressure exhaust fan" is that the negative pressure exhaust fan exhausts the indoor hot air, peculiar smell and st out of the room. At this time, the indoor air pressure becomes low, and the air pressure difference between indoor and outdoor forces the outside air to pass through the "wet curtain" and make up for the indoor air, When the outside air passes through the water curtain, it will fully contact with the water film on the wet curtain (the expanded area of the wet curtain with a thickness of 100 mm per square meter is about 20 square meters). The heat in the air will be instantly absorbed by the water film, and then the temperature and humidity of the air intake will be changed, so that the indoor temperature will be quickly and significantly reced
4. How to install cooling equipment, fan and water curtain? It is suggested to find a professional company to inspect the site, and determine the installation method and quantity according to the building structure of the farm. The cooling water curtain is used in conjunction with the negative pressure fan. The negative pressure fan makes the indoor air pressure lower, and the external air enters through the cooling water curtain, so as to achieve the effect of ventilation and temperature rection. It has small investment, good cooling effect, low operation cost, and can effectively rece the incidence of animal diseases, Very popular with farmers
5. The effect of the cooling water curtain fan is very good. The negative pressure exhaust fan is used to discharge the indoor hot air, peculiar smell and st out of the room. At this time, the indoor air pressure becomes low, and the air pressure difference between indoor and outdoor forces the outside air to pass through the "wet curtain" to make up the room. When the outside air passes through the water curtain, it will fully contact with the water film on the wet curtain (the expanded area of the wet curtain with a thickness of 100 mm per square meter is about 20 square meters), The heat in the air will be instantly absorbed by the water film, and then change the temperature and humidity of the intake air, so that the indoor temperature will decrease rapidly and significantly.
6. Water curtain fan system is composed of fan exhaust system and wet curtain humidification system, which can complete the effect of air replacement and air humidification. But in order to achieve good cooling effect, it must be combined with negative pressure fan to achieve the expected cooling effect. The refrigeration system of water curtain fan is relatively complex, and there are many factors affecting its refrigeration effect. The main criteria to judge the cooling effect of the water curtain fan are the operating efficiency of the water curtain fan and the static pressure difference before and after the operation of the water curtain fan. These factors not only affect the cooling effect of the water curtain fan, but also affect the flow resistance of the air in the water curtain. Therefore, to improve the performance of the water curtain, we must start from the analysis of these parameters&# 8194; After controlling the thickness, wave angle and wave height of the water curtain, the air flow channel in the water curtain can be determined, and the boundary conditions of air flow are also determined. Then the state of air in the water curtain depends on the air velocity&# 8194; In addition, the control of water quantity and water quality in the water curtain has a key impact on the cooling effect of the water curtain fan. Therefore, in order to obtain a better cooling effect, it is necessary to control the water quantity and regularly detect and replace the water to ensure the water quality.
7. Wet curtain (water curtain) cooling mainly uses the physical principle that water absorbs the heat in the air in the process of water evaporation to make the air temperature drop. In practice, it is used with negative pressure fan, and the wet curtain is installed on the gable or side wall at one end of the closed house
the fan is installed on the gable or side wall at the other end, the cooling fan draws out the indoor air, creates negative pressure, forces the outdoor air to flow through the porous wet curtain surface, transforms a large amount of heat in the air, and forces the air entering the room to rece 10-15 ℃, and continuously introces it into the room for heatstroke prevention
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advantages of cooling water curtain:
1. High efficiency and energy saving: water curtain cooling system uses the cooperation of fan and water curtain to artificially reproce the physical process of natural water evaporation cooling, and the power consumption is only one tenth of that of traditional air conditioning
Ventilation: with the cooperation of the whole system, the exhaust fan can quickly exhaust the hot gas, exhaust gas and peculiar smell proced by indoor personnel and machines, avoiding the stimulation of exhaust gas and peculiar smell to human body. The whole indoor air can be updated once a minute at the fastest, which is the effect that ordinary air conditioning can't achieve Improve work efficiency: solve the problem of workers' attention loss caused by heat and oxygen deficiency. The use of water curtain cooling can not only solve the stuffy problem of the workshop, but also proce negative ion oxygen when the water evaporates to rece the temperature, increase the oxygen content in the air, regulate the mood, relieve fatigue, and improve the work efficiency
4. Health and environmental protection: the system uses water as refrigerant, and there is no pollution to the environment in the process of manufacturing and using? In addition to recing the air humidity, the water curtain can also purify the st and particles carried by the external air. High efficient circulation of fresh air can effectively prevent the incidence of occupational diseases and infectious diseases
8. Electronic Commerce
9. How to calculate the cooling water curtain fans of pig farms? It is suggested to find a professional company to investigate the site, and calculate the actual number of water curtain and fans according to the building structure
10. The fan speeds up the air flow to accelerate the evaporation of water, which is endothermic.
