1. When the temperature in the house is higher than the set temperature 1-4 degrees Celsius, consider enhancing ventilation and using air cooling. The effect is cooled; when the temperature in the house is above 5 °C above the set temperature, consider using a fan curtain to cool down.
2, we must first understand a problem: open the fan curtain not only to cool down, but to control the temperature inside the house in a relatively reasonable temperature range.
Under normal circumstances, the temperature is maintained at 1 degree Celsius after the wet curtain is turned on. For example, the temperature at which the wet curtain is turned on today is 30 degrees Celsius. After the wet curtain is turned on, the temperature is maintained at 29-30 degrees Celsius, and the temperature cannot be lowered excessively. In a short period of time, the temperature difference exceeds 5 degrees Celsius, and the flock may catch a cold.
3, open the wet curtain, the range from small to large, first use the two sides of the wall, then use the gable wet curtain, then install the windshield inside the chicken house, reduce the cross-sectional area of the house, increase the wind speed .
Turn on the temperature of the fan curtain. Under normal weather, reduce the temperature by 0.3-0.5 degrees Celsius per day. When the temperature of the wet curtain is lowered to 26 degrees Celsius, there is no need to drop it.
4. After opening the wet curtain, avoid cold wind blowing the chickens.
Farms with wet curtains can use the slope of the wet curtain to guide the wind direction; for farms without wet curtains, plastic paper or material bags can be used to guide the wind direction.
5. After turning on the fan curtain, pay attention to the temperature difference between the two ends of the house to be controlled within 2 degrees Celsius. Reasonably use the number of fans to control the temperature difference. If four fans can control the temperature difference, do not open five; if five fans can control the temperature difference, do not open six to minimize the impact of air-cooling on the flock.
6. After opening the wet curtain, you must grasp the time of the wet curtain switch.
After opening the wet curtain, you must grasp the time of the wet curtain switch, can open for 3 seconds without opening for 5 seconds, can stop for 10 minutes without stopping for 8 minutes.
The intermittent opening of the fan curtain: the time when the curtain pump is closed is more important than the time of opening. After the curtain paper is completely dry, start the pump water supply, so that the curtain is always dry and wet. In the cycle, to achieve a good effect of evaporation of water vapor from the surface of the curtain paper.