Recently, Noblegen Cryogenics has equipped Huaibei Normal University with an LN1C liquid nitrogen generator. This set of instruments is specifically designed for the newly purchased Burker Ascend 600 nuclear magnetic resonance spectrometer in the School of Chemical Materials.

This LN1C liquid nitrogen generator is equipped with a 100L liquid nitrogen tank, which can store about 90 liters of clean liquid nitrogen at once. The measured liquid nitrogen production is 20-25 liters per day. According to the teacher's introduction, Brooke's 600M NMR requires the addition of liquid nitrogen once a week, with a dosage of approximately 40 liters per addition. Liquid nitrogen can be directly transported into the nuclear magnetic resonance instrument through the built-in pipeline.

Built in 100L vacuum insulated liquid nitrogen Duwa tank

Nuclear Magnetic Resonance Spectroscopy, abbreviated as NMR.Used for studying molecular structure, interactions between different molecules, molecular dynamics or dynamic characteristics, as well as the composition of biological solutions, synthetic solutions or composite material mixtures.

The superconducting magnet of NMR is immersed in a liquid helium environment, with a layer of liquid nitrogen on the outside of the liquid helium. The function of liquid helium is to maintain the superconductivity of the magnet and provide the required magnetic field environment. Liquid nitrogen is used to create a "temperature barrier" between liquid helium and the external environment, in order to reduce the evaporation of liquid helium.

Huaibei Normal University currently has two sets of liquid nitrogen generators from other brands in operation, which not only occupy a large area and have a low degree of automation, but also consume astonishing energy. The overall power of LN1C is 3KW, and the machine is controlled through HMI touch screen. The liquid level automatically stands by at around 90%, further saving operating energy consumption.

HMI touch screen, automatically stops when the liquid level reaches 90%

Anhui Huaibei Normal University is located at the border of Jiangsu, Shandong, Henan, and Anhui provinces, and is a multi-disciplinary provincial key university. As a resource depleted city, Huaibei City has been striving to practice the concept of "green mountains and clear waters are as valuable as mountains of gold and silver" in recent years, starting from the actual situation of a coal resource-based city and focusing on carbon technology industry and low-carbon green development.

The successful operation of this LN1C liquid nitrogen generator is expected to save the school nearly 80000 kWh of electricity annually.