Project Background and Challenges

The project is located in a rural town in the south, which has a subtropical monsoon climate with high temperatures and humidity in summer, and long periods of hot and humid weather, posing a serious challenge to livestock and poultry breeding. In China, small and medium-sized pig farms scattered throughout rural areas are not only an important support for rural employment and income growth, but also an important cornerstone for ensuring the supply of urban "vegetable baskets" and stabilizing people's livelihoods. However, pig farming has extremely high requirements for the environment, and suitable temperature and fresh air are the key to ensuring its healthy growth. Due to the long-term lack of professional ventilation and cooling equipment, the pig house's internal turbidity (harmful gases such as ammonia and hydrogen sulfide) and high summer heat cannot be discharged in a timely manner. High temperatures can easily cause heat stress in pigs, leading to decreased appetite and slow growth; while high concentrations of harmful gases can weaken the immune system of pigs, induce respiratory diseases, and ultimately seriously affect the health status and slaughter rate of pigs, causing direct economic losses to farmers. Therefore, it is urgent to carry out scientific and effective ventilation and cooling transformation.

[Solution and Design Ideas]

After conducting an in-depth on-site investigation, the designers of the Ruifeng plan comprehensively considered multiple key factors: (the project is located in the south, with a humid and hot climate; the pigsty is a semi open structure with spacious but easily affected by external environment; farmers have high requirements for initial investment and later operating costs, and need to balance effectiveness and economy.) Based on the above analysis, we abandoned traditional high energy consumption solutions such as air conditioning and ultimately chose permanent magnet industrial relay fans for targeted layout design.

The design team strictly calculated the installation quantity and location of fans based on the selected fan model's air volume and supply distance (up to 35-40 meters), and combined with the key areas in the pigsty that need to dissipate turbid and hot air. By utilizing the characteristics of "large air volume and long air supply" of permanent magnet industrial relay fans, we adopt a "relay" layout to form a strong airflow channel that runs through the pigsty longitudinally, ensuring that air can efficiently flow from the intake end to the exhaust end without leaving blind spots. This design not only avoids the cost increase caused by the small coverage area and dense installation of traditional fans, but also fundamentally solves the problem of poor air flow in large spaces.

Core technological advantages and operational effectiveness

The core advantage of the permanent magnet industrial relay fan used in this project lies in its advanced physical principles. The fan adopts permanent magnet synchronous motor direct drive technology, eliminating the traditional gearbox link and achieving a carbon brush free, Hall free, and maintenance free operation mode. Its "wing shaped" fan blades are designed based on biomimetic fluid dynamics and aerodynamics principles, which can stir larger airflow with lower energy consumption and send the wind to farther distances, achieving a perfect combination of "high torque, small volume, and high energy efficiency"

After the equipment is put into use, the wind environment in the pig house has been improved immediately: (The strong and gentle air flow circulates rapidly, on the one hand, it quickly takes away the damp heat on the pig's body surface, effectively reducing the body temperature; on the other hand, the continuous introduction of fresh air, effectively dilutes and discharges the ammonia, hydrogen sulfide and other harmful gases and dust accumulated in the pig house, creating a healthy living environment of "warm in winter and cool in summer, fresh in air".) Under this environment, the heat stress reaction of the pig is significantly reduced, the appetite is restored, the growth rate returns to normal, and the incidence rate of respiratory tract diseases is significantly reduced, which directly guarantees the health level and the slaughter rate of the pig for breeding. The household has created more stable and higher economic benefits.

The significance of the project and the demonstration of the company's strength

Although the project undertaken by Ruifeng Company this time is a small-scale pig farm engineering project, the "small project" reflects "great capability" behind it. This successful case fully validates the irreplaceable energy-saving and application advantages of permanent magnet industrial relay fans in scenarios such as animal husbandry, agricultural greenhouses, and large warehouses that require high-precision temperature control but urgently need large-scale airflow organization. At the same time, this project also fully demonstrates that Ruifeng Company has the professional design ability to comprehensively select equipment and customize solutions for special spatial environments (such as high temperature, high humidity, and high corrosive gas environments) and special industry process requirements. We not only provide equipment, but also offer a "one-stop" ventilation and cooling solution based on deep industry insights, which can accurately respond to various complex engineering challenges.