What equipment is needed for environmental control in a duck house?
1. Ventilation equipment is usually fans, etc., mainly used to exhaust stale air from the house, bring fresh air from outside into the duck house, or promote air circulation inside the house. It has the characteristics of low total pressure, large air volume, low noise, energy saving, smooth operation, automatic opening and closing of louvers, and easy maintenance. It is suitable for both longitudinal and transverse ventilation in duck houses and is an ideal ventilation device for today's indoor duck farming industry.
Duck house ventilation can be classified in different ways. According to the direction of air flow inside the house, it is generally divided into three types: transverse ventilation, longitudinal ventilation and combined ventilation. In transverse ventilation, air enters from one side of the duck house, and the fans are evenly distributed. In longitudinal ventilation, the fans are at one end of the duck house (at the gable wall), and the air enters from the opposite end of the duck house. In combined ventilation, the air inlets are evenly distributed on the walls on both sides of the duck house, fans are installed at one end of the duck house, and roof exhaust fans are also used.
2. Cooling system: the wet curtain cooling system. The system is mainly composed of wet curtains matched with fans.
Wet curtains usually come in two types: ordinary media and reinforced media. Ordinary media are made by bonding corrugated fiber paper. By adding special chemical components to the papermaking raw materials and using special post-processing, they have the characteristics of corrosion resistance, high strength and long service life. Reinforced media are made by adding a black hard coating to the surface of ordinary media through a special process, making the paper pad easy to brush and disinfect, effectively solving the problem of various airborne fluff, blocking light, resisting rats, and having a longer service life. The wet curtain cooling system uses the principle of heat exchange to humidify and cool the air. Water is sent to the top of the wet curtain through the water supply system, thereby wetting the surface of the wet curtain. When air passes through the moist wet curtain, the water fully contacts the air, lowering the air temperature and achieving the purpose of cooling, with a significant cooling effect. In summer, it can reduce the temperature by 5-8°C, and the higher the temperature, the greater the cooling range. With low investment and low energy consumption, it is called a "cheap air conditioner." The air is fresh, cooling is even, and humidity can be adjusted to the optimal state. Wet curtain ventilation has low investment and high benefit and is especially suitable for breeding production.
Spray cooling system: the system is composed of various models of atomizing nozzles connected to pipes and a pressure pump.
The spray cooling system is a very efficient evaporation system. It sprays fine droplets into the duck house through high-pressure nozzles. As humidity increases, heat energy (sunlight + duck body heat) is converted into evaporation energy, and the temperature drops to the required value within minutes. Because the sprayed water is absorbed by the air in the house, the floor always remains dry. This system can also be used for disinfection at the same time, thus improving duck health. Because this system can cool efficiently, it can reduce ventilation volume to save energy. When the microclimate in the house is required to be both suitable and hygienic, it can be used throughout the year. This system has the characteristics of summer cooling, spray dust removal, continuous humidification, environmental disinfection, and year-round fresh air control.
Air cooling fans have the advantages of good cooling effect, moistening and purifying air, low pressure, large flow, low power consumption, low noise, fast cooling, smooth operation, safety and reliability, low operating cost, simple operation, and convenient maintenance.
3. Lighting control equipment. The lighting program controller is designed with a microcomputer chip, with stepless changes in lighting brightness and automatic light-measuring control. The automatic lighting-ventilation dual-purpose controller can automatically control the lighting system and can also be connected to equipment such as wet curtains, fans and warm air furnaces for fully automatic time control.
4. Cleaning and disinfection equipment. Cleaning equipment is mainly high-pressure washing machinery, and those with atomizing nozzles can also serve as disinfection equipment. There are two types of disinfection equipment: manual backpack sprayers and mechanically powered sprayers.
5. Integrated environmental monitoring and control system. The control system is the heart of any environmental monitoring system and is used for effective monitoring and automatic control of environmental factors such as heating, cooling, air intake and lighting.
(1) Simple microclimate controller. It only has the most basic functions of microclimate control, ventilation, heating and alarming. This controller is very simple to install and operate, can be connected to a computer, makes information management centralized, and can distinguish control strategies. It can ensure that the temperature of the duck house is kept within the duck's comfort zone as much as possible and always meets the minimum fresh air requirements.
(2) Advanced integrated environmental control system. It is composed of a main controller, temperature sensor, humidity sensor, water meter sensor, feed level sensor, alarm device, modem, application software, etc. Through relevant parameter settings, information collection by different sensing devices and command feedback from the main controller, integrated control of various environmental factors such as temperature, humidity, lighting, ventilation, water supply and spraying in the duck house is achieved.