Descriere

Oxygen Analyzer

1.Public environmental condition

Number Articol Conditii de mediu Notă
1 service voltage 220V±10%,50±2%Hz  
2 rezistența la sol <5Oh(Separate ground cable required)  
3 humidity <80%RH,An air conditioner is required to be installed in the operation room  
4 temperatura mediului ambiant 18℃~29℃  
5 electromagnetic interference, vibratie No high frequency electromagnetic field, no strong vibration source  
6 carrier gas Argon, purity 99.999%  
7 power gas

 

Nitrogen, industrial pure  

2.Design, manufacture, installation and acceptance of legal standards and standards

Number Legal specification standard name

 

 

Notă
1 GB/T 11261-2006 Determination of oxygen content of iron and steel – pulse heating inert gas melting – infrared absorption method

 

 

3.Equipment and supporting materials purchase list

Number Nume Factory owner

 

 

Quantity

 

 

Notă
1 Oxygen analyzer main engine

 

 

  1 piece standard configuration
2 Standard spare parts are provided

 

 

For details, see the spare parts list 1 a stabilit standard configuration
3 analysis software   1 a stabilit standard configuration
4 Instrument instruction manual   a copy standard configuration
5 Cooling circulation system 2 HP cooling capacity 1 a stabilit standard configuration
6 printer HP printer 1 piece standard configuration
7 electronic scales Sartorius 1/10,000 precizie 1 piece standard configuration
8 calculator Industrial Personal Computer 1 a stabilit standard configuration
9 voltage-stabilized source 10KVA 1 piece standard configuration
10 standard sample One set according to customer needs 1 a stabilit standard configuration

4.Technical requirements

1、Major parts requirements

Number Nume Brand or technical requirements Notă
1 detecting system German brand standard configuration
2 pneumatic element Italian brand standard configuration
3  

Pulse furnace

 

water-cooled transformer standard configuration
4 linear power supply Aerospace Science and Industry Group Chaoyang Changfeng standard configuration
5 temperature control system Taiwan brand standard configuration
6 power controller Taiwan brand standard configuration

2、Equipment technical specifications requirements

Number Articol require Notă
1 Principle and application The oxygen in metal and non-metal solid materials is detected by inert gas melting principle. In the determination of oxygen, the sample after weighing is placed in a graphite crucible and melted by heating at high temperature in the argon gas flow. The oxygen in the sample reacts with the carbon in the graphite crucible to produce carbon monoxide (CO). This mixture is sent by argon gas to the reformer, where the carbon monoxide (CO) is converted to carbon dioxide (CO2), and through the gas mixture after the reformer is sent to the infrared detection tank, where carbon dioxide (CO2) is detected. Rapid and accurate determination of oxygen content in steel, cast iron, aliaje, cupru, zirconium, titan, rare earth materials, nanomaterials and other inorganic substances.

 

 

 
2 analytical range Oxygen: 0.00001% ~ 20%(expandable measurement range)

 

 

 
3 analytical precision Oxygen: 1ppm or RSD≤1%

Notă: not greater than the sample standard deviation or uncertainty shall prevail.

 

 

 
4 sensitivity 0.01ppm  
5 parsing time Usually 3 minute

 

 

 
6 detecting system Non-dispersive infrared detection system was used for oxygen analysis

 

 
7 Infrared detection system 1, the standard configuration oxygen analyzer is equipped with an independent infrared absorption pool, and the length and number of channels can be flexibly configured according to user needs;

2, motor: the modulation system adopts single-chip microcomputer control of high-precision stepper motor, to achieve long-term stability of the modulation frequency;
3, sursa de lumina: infrared light source selection of efficient, long-life precious metal micro-infrared luminescent and gold-plated metal mirror;
4, constant temperature: the whole gas chamber for constant temperature control, to ensure the analysis of constant temperature, to ensure the measurement accuracy, the use of temperature compensation semiconductor detector, to ensure that the instrument by the outside influence is small, the baseline is very stable.

 

 

 
8 Sample weighing 0.01-1g,Sample size can be changed according to sample content

 

 
9 Pulse furnace

 

1, actual 0 ~ 1500A, putere: 10KVA, the highest temperature is higher than 3200℃.

2, pulse electrode furnace heating temperature is high, using program control power, can provide constant power heating, slope heating, segmented heating and other program heating methods, improve the analysis accuracy. It is suitable for rapid analysis from low melting point materials such as aluminum alloy to high melting point materials such as tungsten alloy. The electrode is suitable for a variety of types of crucible, according to the release of different samples, can choose a variety of crucible including sleeve crucible, high temperature crucible, effectively reduce the user’s use cost. The electrode cooling system adopts a single cycle independent cooling system, which can directly connect the circulating water or the external water cooling device, and has the characteristics of good cooling effect and high reliability.

 

 

 
10 gas circuit 1, the use of integrated whole machine design, open space, the gas path system connection route is greatly reduced, the whole gas path system is more concise and reliable. Gas components including solenoid valve, cylinder, gas pipe, gas joint all adopt imported components, solenoid valve life of more than one million times. The special lifting system with two-axis guide cylinder ensures the smooth lifting of the electrode, ensures the good contact between the graphite crucible and the upper electrode, and ensures the uniform force of the graphite crucible, which is conducive to long-term high temperature heating. Automatic blanking furnace head with air curtain protection and automatic air purging mechanism effectively ensure the accuracy of oxygen element analysis. The furnace head is a split structure, easy to disassemble and replace, and the lower electrode is made of high-temperature alloy material, long service life and low cost. (If the whole furnace head is used, the replacement of the electrode requires professional and technical personnel to operate, which is very troublesome).

2, the design of the sampling system is open, its advantage is that the pollutants are discharged from the top of the furnace, not into the system, usor de operat, the system sealing requirements are not high.(Closed, the gas path through a costly six-way valve to control, internal out.(Some companies have complex sampling device, there are two cylinders, such as the sample stuck, need to open the cylinder, difficult to take out). The micro-flow sensor is used to achieve high precision flow control, and the influence of analysis air flow changes on the analysis is minimized. Gas conversion through this valve, so that the valve is easy to break, dust and other pollutants are also easy to bring into the system). This injection device is simple and can be automatically injected, in case the sample is stuck, easy to remove

 

 
11 Power gas

 

Nitrogen or water-free oil-free compressed air

 

 

 
12 revise 1. Single point correction: correction with a single analysis result

2, multi-point correction: with multiple analysis results correction
3. Blank correction

 

 

 
13 alimentare electrică 1, pulse furnace power supply: 220VAC 10%, 501Hz, maximum current 50A.

2. Other power supply of the instrument: 220VAC 10%, 501Hz, maximum current 10A.
3, circulating water power supply: 220VAC 10%, 501Hz, maximum current 16A.

 

 

 
14 software function 1. Provide software under Windows environment to quickly display analysis results and analysis curves;

2. Automatic storage of analysis results;
3. The sample weight is automatically entered into the software;
4. Channel setting is optional;
5, dynamic release curve drawing and storage, unloading;
6, the analysis results of a variety of correction modes, can be manually corrected, can also be corrected through the analysis results; Can be single point correction, can also be multi-point correction;
7, the data screening, average, standard deviation, relative deviation, etc.;
8, the new software can be based on user application, can design a number of calibration lines, greatly facilitate the use of users;
9, the host can and computer, printer, electronic day equal connection to achieve data transmission;
10. The analysis time and blank value can be adjusted, and the blank value of the melting agent can be automatically removed;
11, the user can store several analysis methods for different analysis samples.
12, can store a lot of sample weight (quantity is limited only by the computer hard disk capacity).
13, can output regular format results report.
14, can be connected with the user database, to achieve remote transmission of analysis results, easy to achieve the network management of analysis results.
15, can quickly carry out instrument blank determination.
16, sample number can be stored and edited.
17, can be applied to automatic sampling, to achieve automatic operation of the instrument.
18, oxygen can be arbitrarily set up high and low analysis channel to meet the analysis requirements of different content and different materials. Users can use the combination freely according to actual needs.

 

 

 
15 routine test  

Instrument inspection and calibration certificate

 

 

 

5.Provide equipment data requirements

Number Nume Notă
1 manufacturer certificate  
2 Operating standards for equipment operation, inspection and maintenance  
3 Spare parts list of the whole set  
4 Machine operation manual.  
5 Operating instructions for main parts.  

6.Spare parts list

6A-101 Graphite external crucible 100 Bucăți    
6A-102 Graphite internal crucible 300 Bucăți    
6A-103 decompressing table 2 Bucăți    
6A-104 hairbrush 1 Bucată    
6A-105 instruction book 1 Bucată    
6A-106 cleanroom wiper 1 Bucată    
6A-107 High temperature electrode sheet 1 Bucată    
6A-108 Seal spare parts 1 A stabilit    
6A-109 Sample tweezers 1 Bucată    
6A-110 Crucible tweezers 1 Bucată    
6A-111 Pagoda copper brush 1 Bucată    
6A-112 Injector cleaning brush 1 Bucată    
6A-113 air pipe line Φ6 20 Meters    
6A-114 Vacuum silicone grease 1 Bucată    
6A-115 High efficiency dehydrating agent 1 Bucată    
6A-116 CO2absorbent 1 Bucată    
6A-117 quartz wool 1 Bucată    
6A-118 water pipe 20 Meters    
6A-119 Rare earth copper oxide 1 Bucată    
6A-120 High temperature quartz tube 1 Bucată    
6A-121 Reagent quartz tube 1 Bucată    
6A-122 Filtered quartz tube 1 Bucată    
6A-123 certificate 1 Bucată    
6A-124 Nickel basket 1 Bucată    
6A-125 Nickel pocket 1 Bucată    
6A-126 Electrode cleaning copper brush 1 Bucată    

 

Oxygen Analyzer