Brief Introduction To Ventilation Knowledge About Agricultural And Animal Husbandry Fan

Let's take a look at the ventilation knowledge of agriculture and animal husbandry fan.

1. Clarify the ventilation of the fan

The air volume is the product of the wind speed V and the cross -sectional area F. Since the large agricultural and animal husbandry fan can accurately measure the air volume, the calculation of the air volume is simple. Calculate the air volume with formula Q = VF.

Second, the choice of the number of fans

According to the number of air vitality or production requirements, calculate the total air volume required for the chicken house, and then calculate the number of fans, calculate the formula: n = v × n/q, the number of fans (Taiwan), V-venue volume (V-venue volume ( m3), N-air replacement times (times/o'clock), Q-single typhoon (m3/h).

Third, the choice of fan model

According to the actual situation of the chicken house, try to select the agricultural and animal husbandry fan model that matches the size of the original window. Keep a certain distance from the fan and the wet curtain (as much as possible on both sides of the trebry of the plant) to achieve a good ventilation and replace the replacement of good ventilation. Qi effect, try not to be close to nearby buildings as much as possible to prevent nearby residents. If the air from indoor contains a pollution environment, you can install a water -spraying device or wind cover at the air outlet to collect feathers to prevent pollution from pollution environment.

Fourth, the amount of eggs need to be replaced by eggs

The world's general -purpose calculation standards are calculated according to the need for the unit weight chicken. The big chickens are different from the chicks. It cannot be simply calculated according to the only chicken. Egg hen's weight is 0.9 cubic meters per kilogram of body weight is 0.9 cubic meters per hour; the high amount of gas required for egg hen per kilogram of weight is 7.6 cubic meters per hour). Chicken body temperature: Temperature+humidity cannot be higher than 102 ~ 104 (somatosensory temperature calculation: use wet cloth to wrap the temperature probe, the temperature displayed is the temperature temperature of the chicken).

The commonly used value for eggs for eggs per kilogram of weight is: Eggs into chickens 4.76 cubic meters per hour, egg chicks 3.68 cubic meters per hour, weight value: eggs into 2.3 kg, egg chicks 1.5 kg, considering theoretical theory, considering theoretical theory The error of calculation and actuality is generally multiplied by 1.2 ~ 1.4 amplification coefficient.

5. Calculate ventilation needs

In the hot season, the air must be exchanged as soon as possible to reduce the accumulation of heat. If there is no air exchange, the heat will accumulate between the air inlet and the exhaust fans, resulting in the increase in harmful substances such as dust, ammonia, and carbon dioxide in the air. Generally speaking, the agricultural and animal husbandry fan should have the ability to exchange air within 1 minute. In the warm climate season, air exchange can be completed within 2 minutes.