After harvesting, fruits and vegetables remain living organisms, absorbing oxygen from the air, releasing carbon dioxide, water, and heat, while consuming their own nutrients. Controlled atmosphere storage is the process of controlling the concentration of oxygen, carbon dioxide, ethylene and other gases in the storage environment to significantly reduce the respiratory intensity and self consumption of fruits and vegetables, reduce water loss, decrease the consumption of nutrients, delay the aging process of fruits and vegetables, and achieve long-term storage and preservation. Controlled atmosphere storage is the best storage method for fresh agricultural products.
Since its establishment, Dehezi has established a global development strategy, focusing deeply on the research and industrial application of cutting-edge technologies in the field of post harvest preservation of agricultural products. As the exclusive strategic partner of Dutch Van Amerongen in China, both parties have successfully localized the application of ultra-low oxygen controlled storage technology for fruits and vegetables based on the internationally leading controlled atmosphere fresh-keeping technology system, through comprehensive technology adaptation and collaborative innovation.

The ammonia refrigeration system is a type of refrigeration system that uses ammonia (NH3) as a refrigerant, with high refrigeration efficiency, controllable safety, and affordable price.

Freon refrigeration system is a type of refrigeration system that uses Freon as a refrigerant, with good chemical stability, non flammability, high refrigeration efficiency, and a wide range of applications.

The carbon dioxide refrigeration system is a type of refrigeration system that uses carbon dioxide (CO ₂) as a refrigerant. It has superior environmental performance, controllable safety performance, excellent heat transfer performance, a wide range of applicable temperatures, and a large unit cooling capacity.

A hybrid refrigeration system is a refrigeration system that utilizes two or more refrigerants to work together, aiming to improve energy efficiency, adapt to wide temperature range requirements, or reduce environmental impact.

An air cooler with a rear mounted motor is a type of air cooler that installs the motor at the rear of the cooler body, and has the characteristics of smooth air outlet, good circulation effect, and reduced cold damage.

Small temperature difference heat transfer refers to a heat transfer method in which the temperature difference between cold and hot fluids is relatively small during the heat transfer process. Capable of precise temperature control, energy-saving and efficient, with strong adaptability.

• Reduce dehydration of fruits and vegetables
• Reduce the defrosting frequency and time of the air cooler, and lower 
  energy consumption
  
• Improve the cooling capacity of the refrigeration system
• Avoid cold damage to fruits and vegetables in the cold rooms

• Low impact on storage temperature
• High defrosting efficiency
• Zero energy consumption
• Reliability

The bag air supply system is a flexible air distribution system made of special fiber materials, which achieves uniform linear air supply through the unique air outlet mode of fiber infiltration and nozzle jet. Uniform and comfortable air supply, anti-condensation, easy to clean and maintain, beautiful appearance and high-end, lightweight, quiet operation, simple and fast installation, flexible and reusable installation.