PRAXAIR 1000 Nm3/h EPC High Purity Nitrogen Generator Air separation plant engineering project

PRAXAIR (Shanghai) 1000 Nm3/h High Purity Nitrogen Generator

Typical Product

Main design reference:

• GB16912-2008
• GB50236-98
• JB4730-2005
• GB50057-1994
• GB50016-2006
• <1000Nm3/h Nitrogen Generation Air Separation Plant Technical Specification> ES-819-03010110
• Related enterprise standard of Praxair

Layout of Equipment:

Introduction of main equipments:

1. Fee air compressor: compress the mechanical impurities removed air to process required pressure, and then send the air to designated area.

2. Molecular sieve purifier: adsorb the moisture, acetylene, carbon dioxide and part hydrocarbon in the feed air to guarantee the normal running of air separation plant.

3. Fractionating column: rectify the feed air to obtain needed products.

4. Instrument & electrical equipments: measuring and controlling various parameters. All operations and emergency cut-off can be achieved in center control room PLC. Important parameters can be displayed, recorded and alarmed in the center control room.

Equipment Installation Construction And Acceptance

1. The installation and construction for equipments should not only follow the drawings delivered with equipments and the technical documents provided by the equipment manufacturer, but also follow the relevant standards, codes and regulations. The installation should follow the requirements of process pipe and instrument flow drawing, pipe layout drawing and pipe single line drawing.

2. Before the installation construction of equipments, the equipments, valves, instruments, pipe fitting and materials delivered with equipments should be checked, carry out the construction only after they are qualifying after checking.

3. Before installing equipments, the longitudinal, horizontal and elevation baselines should be marked on the foundation in the drawing, and the baselines should meet the following requirements:

a) The center line deviation is within 20mm.

b) The dimension deviation is within 15mm.

c) Elevation: leaving the secondary grouting layer according to design elevation.

d) Embedded anchor bolt hole center line deviation is within 5mm.

e) Bolt top elevation allowable deviation is within 5mm.

4. The foundation surface should be mended, spaded and pitted surface before installing the equipment, leveling the place with shim plate, clean the sundries in the reserved anchor bolt holes.

5. The anchor bolt and nut should be matched with moderate tightness degree, and without defect.

6. The shim plate should be laid flat, and one group for the two sides of each anchor bolt. The distance between the adjacent shim plates is subject to the factors like rigidity of equipment pedestal. The shim plate should be welded after calibrating the equipment, the secondary grouting layer on the foundation surface must closely contact the equipment pedestal annular space and foundation surface.

7. The installation construction and acceptance inspection for air compressor should be according to the installation technical requirements provided by the manufacturer and the regulations of GB50231,GB50275.

8. The installation construction and acceptance inspection for cryogenic liquid storage tank and cryogenic liquid pump should be according to the installation technical requirements provided by the manufacturer.

Competitive Advantage:

1. Our company is a state-owned enterprise that can give professional consult, design, supervision, project management, import and export trade, forming a complete set for air separation plant, and engineering project contracting (EPC).

2. Our company can provide the engineering design and installation service, and technical services and after-sale equipment maintenance.

3. Mature project engineering supervision

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.