HANGZHOU NUZHUO TECHNOLOGY GROUP CO.,LTD.

Nuzhuo has always been committed to providing global customers with efficient and energy-saving one-stop gas solutions. Ethiopia, as an important emerging economy in Africa, has extremely strict standards for industrial gas equipment. The successful overseas deployment of the equipment KDON-500Y/280Y to Ethiopia indicates that Nuzhuo’s influence and the stability of the equipment have been highly recognized by the high-end African market, further consolidating Nuzhuo’s competitive position in the global gas separation equipment sector.

The equipment adopts a fully low-pressure molecular sieve adsorption process, and ensures gas purity through “three-level purification”. The first stage: air passes through a self-cleaning filter for coarse filtration and then enters the compressor. The compressed air is pre-cooled and dehumidified in the dry air machine; the second stage: it enters the molecular sieve purification unit, where carbon dioxide, acetylene and residual moisture are adsorbed and removed; this stage directly affects the safety and stability of the entire deep cooling system; the third stage: the purified air exchanges heat with the returning low-temperature gas in the main heat exchanger, and its temperature drops to close to the liquefaction point before entering the distillation tower. In the distillation tower, the gas repeatedly evaporates and condenses between the tower plates, ultimately achieving precise separation of oxygen and nitrogen. Liquid nitrogen is drawn from the top of the tower, and liquid oxygen is extracted from the bottom of the tower. The purity is stably controlled at over 99.6%. This process may seem simple, but it imposes extremely strict requirements on the design of tower internals, pipeline insulation, and valve sealing. Nuzhuo, with decades of technical accumulation, successfully overcame the industry pain point of “large cold loss and high energy consumption” in small-scale deep cooling equipment, reducing the overall system energy consumption by more than 15% compared to traditional designs.

The KDON-500Y/280Y is merely one of the numerous products in the Nuzhuo extensive product line. As a national-level high-tech enterprise, Nuzhuo’s product range has covered six major fields: deep cryogenic air separation, PSA (Pressure Swing Adsorption) adsorption, VPSA (Vacuum Pressure Swing Adsorption), O2/N2/Ar Booster Compressor, and industrial valves. It is widely used in nearly a hundred industries such as metallurgy, chemical engineering, photovoltaics, lithium batteries, biomedicine, and food preservation. In the metallurgical field, Nuzhuo’s large-scale oxygen generation units provide oxygen-enriched combustion support for steel enterprises, contributing to energy conservation and emission reduction. In the photovoltaic industry, high-purity nitrogen is used for the passivation protection of solar cell wafers. In the preparation of lithium battery materials, Nuzhuo’s nitrogen protection system ensures that the materials are not oxidized. In the biopharmaceutical industry, Nuzhuo’s liquid nitrogen tanks provide a stable and reliable low-temperature environment for cell storage. Looking to the future, Nuzhuo  is accelerating its efforts in the green energy sector. The company’s independently developed carbon capture devices and hydrogen purification equipment have entered the trial production stage, and will contribute Chinese wisdom to the global goal of carbon neutrality.

For any oxygen/nitrogen/Argon needs, please reach out to us ：

Lyan.Ji Tel./Whatsapp/Wechat:+86-18069835230

Email :lyan.ji@hznuzhuo.com