Low Pressure Pure liquid nitrogen plant 0.27 MPa for fruit and vegetables

Liquid nitrogen generator 2200 KDN-2200 Liquid Nitrogen Low Pressure Nitrogen Pure Nitrogen

Specifications:

Product List For KDN Series Nitrogen Generator

Typical Product: KDN-2200 Liquid nitrogen generator

Output, purity and pressure

Note: 1. Nm3/h is defined as the volume at 0℃, 101.3kPa(A);

2. The liquid output is calculated from data of gas, and the pressure is calculated with 0 meter high at outlet of cold box.

Description:

The plant employs a expansion turbine process in which the air is purified by molecular sieve, nitrogen is produced by means of double columns with expansion achieved through backflow.

 After the feed air is cleaned of dust and mechanical impurities in air filter, it is compressed to 0.95MPa in air compressor.

 The compressed air is then fed into air pre-cooling system to be cooled to 10 ℃, 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; the remainder is fed into main heat exchanger to be cooled to saturated state with the refluxed gas. The cooled air is fed into the bottom of nitrogen column for participation in rectification. The product medium pressure nitrogen is obtained at the top of nitrogen column while the saturated and oxygen-rich liquid air at the bottom of column and the liquid nitrogen at the top of column are throttled in the liquid air and liquid nitrogen subcooler and then into the corresponding postion of upper column.

 Follow the further rectification in the upper column, the low pressure nitrogen is obtained at the top, which will be sent to the user after being rewarmed in the main heat exchanger.

The waste nitrogen which is withdrawn from the upper part of main heat exchanger goes into the subcooler and main heat exchanger to be rewarmed to a certain temperature, and then goes into the expander to be expanded. The expanded gas goes into main heat exchanger to be rewarmed, and then goes out of cold box, part of which will be the regeneration gas of molecular sieve, and the rest will be blow-off.

.  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:

1. Mixed Gases for prolonging shelf life of fruit and vegetables

2. Carrier Gas

3. Protective Gas

4. Nitrogen Purging & Pressurize Test

5. Carrier Gas

6. Welding and metal processing

7. Food and beverage

Competitive Advantage:

1. Long service life

2. Widely sales around the world

3. No loss, high returns

4. Engineers available to service machinery overseas

       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.