High Efficient Cryogenic Liquid Nitrogen Plant/Liquid Nitrogen Generator for Producing High Quality Liquid Nitrogen

    Liquid nitrogen-LN2-is nitrogen in a liquid state at low temperature. It is a colorless, low viscosity liquid that is widely used as a coolant. KDN-300Y cryogenic process LN2 generator is one of most popular medium size liquid air separation plant in the market which produces 300L high purity liquid nitrogen per hour.
    KDN-300Y liquid nitrogen producing plant equipped with PLC control system, which is very convenient for users to operate. And if a problem occurs during the operation of the plant, it's easy to find immediately the right position of the broke, so that the problem can be solved quickly.

Air compressor
    The inlet air will be compressed into the pressure as per process required.
It is sprayed-oil screw compressor, box-body construction, it have low noise, whole machine gather gas, lubricate, water, electric, cooling and instrument to one, realize machine and electric become one body.
Pre-cooling unit
    The outlet temperature of compressed air is around 40ºC which is too high for the down-stream molecular sieves high efficiency operation, in order to increase the performance of the molecular sieves, a pre-cooling unit is required.
Purifier
    Remaining contaminants in the process air such as moisture, carbon dioxide, acetylene (and etc.) shall be removed before enters into the main heat exchanger, a molecular sieves system is adopted.
 

Turbine expander
  Turbine expander also referred to as a turbo-expander, is a centrifugal or axial-flow turbine, through which a high-pressure gas is expanded to produce work. It's the one of core part of the whole plant.
Fractionating column
  It adopt fin type heat exchange, made in aluminum, heighten heat exchange affection, depress the operating pressure, reduce the power consumption furthest, saving cost.
Liquid pump
  Liquid pump is a kind of cryogenic liquid pump, by which the pressure of nitrogen can be increased to achieve the purpose of transporting liquid nitrogen.

Product name	KDN-300Y liquid nitrogen plant	Remark
Capacity	300L/h	OEM accepted
Prpduct purity	N2: 99.999%
Product pressure out of cold box	~	Subject to user's need
Power consumption	~	Subject to the final design
Power supply	380V/220V/50Hz	Subject to the user's actual situation
Starting time	≤8h
Heating time	≤12h
Cooling method	Water cooling

  In order to improve equipment performance and provide customers with better products, our company has established a research and development center. After continuous research and creation, combined with market demand, we have invented many devices to improve equipment performance. The following is a partial display of our invention patent certificate:

All equipments are packed as required as transportation standard.

Handan Dyon Air Separation Plant CO., LTD., founded in 2009, is a professional engaged in air separation plant, dissolved acetylene plant, chemical tail gas recycling equipment, food grade CO2 equipment, liquefied natural gas equipment, design, research and development, manufacture and after-sales service as one of technological innovation-oriented enterprises. Company to the abundant technical force as the backing, during short few years, on the basis of Skid mounted air-cooled oxygen and nitrogen making plant, design and manufacture the domestic first set of 600 Nm3/ h oxygen with argon plant, the first set of 1000 Nm3/ h oxygen with argon plant; Made the domestic first set of 20000 tons/year of large coal bed methane gas liquefaction projects; Taken the lead in developing the domestic nylon acid fat waste water recycling project, to fill the domestic blank; Invented by cryogenic method to recycle hydrogen by-product during the manufacture of polysilicon cross-linked silicon and silicon tetrachloride technology; Invented by cryogenic method of acetyl chloride and hydrogen chloride in chloroacetic acid production exhaust gas recycling technology, and access to national patent grants.

1) Full automatic control, convenient to operate;
2) Excellent process design, ensuring the high quality of LN2;
3) Strict selection of raw material, extremely durable;
4) Modular structure, easy installation;
5) Design and manufacture based on user's requirement and local environment condition, strong adaptability to the environment, longer service life;
6) No cooling water pool, cooling tower required;
7) High-quality nitrogen, purity reaches 99.999%;
8) Small area required;
9) Very short starting time.