ASEM CE industrial nitrogen generator 4200 Nm3/h / 420 Nm3/h

Nitrogen generation plant 4200 Nm³/h / 420 Nm³/h

Specifications:

The Standard Products for the Nitrogen Generator KDN Series

Typical Product: KDN-4200/420Y Nitrogen generation plant

Output, purity and pressure

Description:

This plant employs a process in which the air is purified by molecular sieve, expansion turbine is provided with braking effected by fan and nitrogen is produced by means of single column with expansion accomplished through backflow.

After the feed air is cleaned of dust and mechanical impurities in air filter, it is compressed in air compressor to a pressure of approx. 0.8 Mpa(G).

The compressed air is then fed into air pre-cooling system. When it is cooled to about 8℃, it becomes saturated.

The saturated and compressed air flows into switched molecular sieve adsorbers where such hydrocarbons as H2O, CO2 and C2H2 are adsorbed from the air.

A small part of purified process air is drawn out to be used as instrument air and the remainder is fed into main heat exchanger. The expanded waste nitrogen is drawn, which cooled after being expanded to a saturation temperature and moisture- bearing to a certain extent, is throttled into the bottom of nitrogen column for participation in rectification. The nitrogen gas and liquid nitrogen are then obtained at the top of nitrogen column while the saturated and oxygen-rich liquid air at the bottom of column is throttled into the evaporation side of condenser evaporator to condense the nitrogen gas at the top of column.

Oxygen-rich liquid air at the evaporation side of condenser evaporator is heated and vapored to be saturated gas by nitrogen gas at the top of column, and then it is drawn out and into cold end of main heat exchanger, after being rewarmed, it is drawn out and into turbo-expander to be expanded and refrigerated

Expanded oxygen-rich liquid air enters main heat exchanger to be rewarmed to normal temperature and to be fed out of cold box; partial gas is to be regeneration gas for molecular sieve adsorbers, the rest is blown off.

The nitrogen gas and liquid nitrogen are drawn out of the top of nitrogen column. The nitrogen gas flows out of cold box to the client with the required pressure by client after it is reheated in main heat exchanger to a normal temperature. The liquid nitrogen will be drawn out of the top of column and throttled to the required pressure and fed out of cold box to the storage tank, and is used as the spare gas of pure nitrogen equipment.

In order to prevent hydrocarbon from accumulating in condenser evaporator, a small stream of liquid drawn from oxygen-rich liquid air evaporation side is discharged as waste liquid.

Applications:

• Petroleum refining
• Metal production
• Electronic Gas
• Protective gas, shielding gas
• Pulp & Paper
• Metallurgy

Competitive Advantage:

• Convenient operation and maintenance
• Economization of energy,
• Designed for long, stable and reliable running,
• Rich historical experience over 60 years
• Widely sales around the world
• Long service life

       Hangyang Cryogenic Liquefaction Equipment Co., Ltd. is one of the holding subsidiaries of Hangyang Co.,Ltd.(stock code:002430), it is organized on the basis of the original Small Scale of ASU Company of Hangzhou Hangyang Co,.Ltd. It is the major engineering, research and manufacturing base for small size of ASU and liquefaction plants in China, It is located in Hangyang Manufacturing Base in Lin'an Economic Development Zone, the address of sales office is No. 592, Zhongshan North Road, Hangzhou. It undertakes engineering consulting, design and manufacture, assembled construction design, installation and commissioning and supply of parts for medium and small size of ASU with its professional quality. It is the main base of design, research and manufacture for the domestic medium and small size of oxygen/nitrogen generating plants, liquid oxygen/liquid nitrogen plants, oxygen/nitrogen liquefiers, high-purity nitrogen generators, vacuum pipes and Pressure Swing Adsorption (PSA) for oxygen/nitrogen generating, etc.; Meanwhile, it is also the professional manufacturer for integrated assembly or skid type of medium size of ASU for leaving workshop by Hangyang, its abilities of design and manufacture for integrated assembly of medium size of ASU reach the leading domestic level. Our company has the independent import and export trade qualification.

      Our company possesses professional technical personnel teams of design and EPC engineering of ASU and also possesses design ability of product such as independent process calculation, project design, unit design, project EPC. The manufacture base of our company was relocated to new site in 2009. Recently, the floor area is 40.34 acres. Combinating with relocation, the imported and set-up professional manufacture production tools, moulds and equipment forms the manufacture ability for manufacture ASU whose capacity is below 30,000Nm3/h. Our company carries out the international administration concept and obtains authentication certificates of management system such as ISO9001, ISO14001 and OHSAS18001 of DET NORSKE VERITAS. Meanwhile, we obtains manufacturing license for pressure vessels manufacture D1 and D2, Zhejiang new high-tech enterprise certificate and small and medium-sized technology-based enterprise certificate, our company possesses impeccably professional manufacturing credentials for medium and small size of ASU.   

     Our company sets product research, manufacture, marketing and service in one to elaborately provide general customers superiorly coordinated service on the basis of decades experience in design and manufacture and administration concept by Hangyang. Products involve aspects such as metallurgy, petrifaction, electron, machinery, building materials and aerospace. Our products are not only sold well throughout China, but also sold to the West, and our company becomes the designated supplier for several well-known gases investment companies abroad. In the cooperation with transnational large gases companies, our company absorbs and imports the advanced design concept, strict administration program, exquisite manufacturing technology so as to lead our company to develop in the direction of diversification, exquisite products and large-scale. Hangzhou Hangyang Cryogenic Liquefaction Engineering Co., Ltd. undertakes EPC works of ASU under our company.