The ventilation project of a food processing factory in Hunan was successfully completed. Suzhou Qiaohui HVAC stainless steel welded air duct built a "wind barrier" for food safety.

Recently, the ventilation and smoke exhaust project of a large food processing factory in Hunan Province was officially completed and put into use. The project adopts 304 stainless steel welded air duct system customized by Suzhou Qiaohui HVAC Equipment Co., Ltd. (hereinafter referred to as "Suzhou Qiaohui HVAC"). With excellent sealing performance, corrosion resistance and compliance design, it has built an efficient and clean ventilation environment for food processing workshops and helped enterprises to build a food safety defense line.

It is understood that the food processing plant mainly produces baking, meat products and other products, and the problems of high temperature, high humidity and oil fume odor in the workshop are outstanding, which puts forward strict requirements for the material safety, corrosion resistance and air purification ability of the ventilation system. "The ventilation environment of the food processing workshop is directly related to the product quality. The traditional air duct is easy to rust and poorly sealed, which not only affects the ventilation efficiency, but also may breed bacteria due to oil accumulation." The person in charge of the processing plant project said that after many investigations and comparisons, he finally chose to cooperate with Suzhou Qiaohui HVAC, which has been deeply involved in the HVAC industry for more than ten years, and adopted its core product, stainless steel welded air duct.

Suzhou Qiaohui HVAC provides customized solutions for the whole process according to the project requirements. Considering the hygienic standard and lampblack characteristics of the food processing workshop, the air duct is made of food-grade 304 stainless steel, and the thickness is accurately matched according to the wind pressure in the workshop area to ensure the structural strength and meet the requirements of food safety contact materials. In terms of technology, TIG full welding technology is adopted, and the welding seam is smooth and smooth after passivation treatment, without dead angle and leakage point, effectively avoiding oil fume residue and bacterial growth; The inner wall of the air duct is finely polished, and the roughness Ra is less than 0.8 μ m, which reduces the wind resistance and is convenient for later cleaning and maintenance, and conforms to the GMP standard of food industry.

During the construction stage, Suzhou Qiaohui HVAC set up a professional installation team, strictly following the Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering and the hygiene management requirements of food factories. Before construction, accurately survey the workshop site, optimize the design of air duct direction, and avoid the key areas of production equipment and process flow; During the installation process, the mode of "sectional preassembly+on-site welding" was implemented, the levelness error of the air duct was ensured to be less than ≤0.5mm/m/m through laser levels calibration, and the flange connection was made of food-grade silicone rubber gasket to further strengthen the sealing performance. In addition, the team also completed the joint debugging of air ducts, fans and air purification equipment to ensure that the air volume and air pressure of the ventilation system reached the design standards, and the air replacement efficiency of the workshop increased by 40%.

"After the completion of the ventilation project, the workshop temperature will be reduced by 5-8℃ on average, and the dissipation speed of oil fume and odor will be significantly accelerated, and the comfort and cleanliness of the production environment will be greatly improved." According to the feedback from the person in charge of the processing plant, the anti-oil pollution and easy cleaning characteristics of Suzhou Qiaohui HVAC stainless steel welded air duct not only reduce the later maintenance cost, but also ensure the hygiene and safety of the food production process from the hardware.

The general manager of Suzhou Qiaohui HVAC said that this cooperation with Hunan Food Processing Factory is another typical application of the company's stainless steel welded air duct in the food industry. In the future, we will continue to focus on industry demand, deepen product technology innovation, provide efficient, safe and compliant HVAC solutions for more customers in food processing, catering and other fields, and help enterprises achieve green production and high-quality development.