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About Us
Guangzhou Weiton is an industrial gas system manufacturer integrating scientific research and development, manufacturing, sales and service. Its three brands include Weiton Industrial Gases,
  • 广州维通再次入围中储粮指定供货商
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    广州维通再次入围中储粮 指定供货商2017年10月，维通再次成功入围中国储备粮管理总公司变压吸附式制氮设备指定供货商。维通2007-2017连续十年为中国绿色储粮事业提供优质、节能、高效的变压吸附制氮系统，十年间凭借先进的专业技术、过硬的产品质量以及优质的售前售后服务博得了广大储粮用户的普遍认可。能够连续入围不仅仅是中储粮总公司乃至整个粮食行业对维通的认可，同时也是公司综合实力及企业信誉的良好表现，我公司将秉承一贯的实事求是态度及良好的工作作风，认真努力地完成本次采购范围内的各项工作，为中国粮食储存绿色工程、良心工程、放心工程继续添砖加瓦！中储粮总公司粮食仓储设备招标入围项目入围结果公示：http://fwgs.sinograin.com.cn/articles/48546
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  • 制氮机常见故障及处理
    发布时间： 2009 - 04 - 20
    一：故障现象:    其中一塔排气不彻底原因:    1.单向阀漏气    2.反吹阀开启过大处理:    1.更换单向阀或内密封圈    2.调节反吹阀开启量 二：故障现象:    纯度下降原因:    1.吸附压力过高(0.8Mpa)    2.吸附压力过低(    3.吸附压力不稳    4.气源含水油量过多    5.进气量过大使压力上升过快    6.出气部分接口漏气    7.分子筛中毒处理:    1.减少进气压力    2.加大进气压力    3.进气口加个储罐    4.入口前加装油水分离器    5.调节入口调节阀，减少进气量。    6.取下重新插接    7.更换分子筛 三：故障现象:    氮气机不工作原因:    1.电源指示灯不亮。    2.电源插头或插座无电。处理:    1.检查保险丝是否正常（保险的位置在电源线与氮气机插座的下端）。用一字螺丝刀轻轻向外一挑就可把保险取出。有两个保险，一个在用一个备用，必要时更换...
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News
Release daily information of the company, frontier information of gas industry, application knowledge of equipment industry, common faults and daily maintenance plan, etc.
  • Nitrogen producing devices
    发布时间： 2019 - 06 - 03
    Nitrogen flowrate: 1 - 6000m³/hNitrogen purity: 95% - 99.9995% （100% - oxygen content）Dew point:  ≤- 45℃（- 70 ℃ can be customized）Nitrogen pressure: 0.5~6Bar，adjustableSuitable environment: temperature -15～45℃    humidityCompressed air conditions:Temperature: 0-30℃Pressure: 7.0-8.0Bar   Pressure dew point:Others: dust ≤ 0.01 μm   No oil, VOC and components of sulfur and nitro※Declaration when ordering if beyond the operating range※Too high temperature of the gas supplied will reduce the production capacity
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  • Nitrogen Producing System Specially for Green Grain Storage
    发布时间： 2019 - 06 - 18
    Nitrogen flowrate:1 - 6000m³/hrNitrogen purity: 95 %-99.9995 %（100 %-oxygen content）Dew point:  ≤ -45℃Nitrogen pressure: 0.05 ~ 6.5 bar, adjustableSuitable environment: temperature -15 ~ 35 ℃   humidity Conditions of compressed air:Temperature：0-30℃ Pressure：7.0-8.0Bar    Pressure dew point：Others：Dust ≤0.01μm   No oil,VOC and components of sulfur and nitro ※ Declaration when ordering if beyond the operating range.
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  • Oxygen-producing devices
    发布时间： 2019 - 06 - 18
    Oxygen flowrate：1-200m³/hOxygen purity：30%-95%Dew point： ≤-45℃Oxygen pressure: 0.01 ~ 4.0 bar, adjustableSuitable Environment: temperature -15 ~ 35 ℃   humidity Conditions of compressed air：Temperature: 0 - 25 ℃ Pressure: 4.5 - 5 bar    Pressure dew point: Other: dust ≤ 0.01 μm   No oil, VOC and components of sulfur and nitro ※ Declaration when ordering if beyond the operating range
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  • VPSA Oxygen Generator
    发布时间： 2019 - 06 - 18
    Oxygen flowrate：100-3000m³/hOxygen purity：30%-95%Dew point： ≤-45℃Oxygen pressure: 0.1 ~ 0.6 bar, adjustableSuitable Environment: temperature -15 ~ 35 ℃, humidity Conditions of compressed air：Temperature: 0-30℃ Pressure: 4.5-5Bar    Pressure dew point: Other: dust ≤ 0.01 μm   No oil, VOC and components of sulfur and nitro※ Declaration when ordering if beyond the operating range
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  • Purifying device of hydrogen-removed oxygen
    发布时间： 2019 - 06 - 18
    Oxygen concentration of feed：Feed pressure：0.3MPa～0.7MPaResidue index:0xygen content：≤1ppmHydrogen content ≤ 1000 ppm (Exception to hydrogen purification project)Dust：≤0.01μmDew point：≤-60℃
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  • Customization of Pressure vessels
    发布时间： 2019 - 06 - 19
    To undertake manufacturing all kinds of Class D1 and D2 non-standard pressure vessels, listen to customers' requirements for pressure vessel design. With years of strong design and manufacturing capacity, tailor the most suitable products for customers. Dedicate to customers the finest, the most beautiful and the most useful products。
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  • Gas Storage Tank
    发布时间： 2019 - 06 - 19
    Brand: Guangzhong MachineryVolume：0.3m³-75m³Working pressure：0.8MPa-8.0MPaMaterial：Q235B/Q345R/SUS304Medium: airWorking life: 10 - 30 years (Customized according to users' requirements)General accessories: relief valve, pressure gage, drain valve
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  • Environment-protecting refrigerating dryer
    发布时间： 2019 - 06 - 19
    Air capacity：0.5 - 110 Nm³/min (may be customized)Inlet pressure: 0.2 - 1.0 MPa (may be customized)Inlet temperature：low-temperature type  ≤ 45 ℃, High-temperature type  ≤ 80 ℃Cooling mode: air-cooling (water-cooling)Pressure dew point : 3 - 10 ℃ (0.7 MPa)Refrigerant: R134a, R404a, R507, etc., optional Pressure loss: 0.02 MPaTemperature of cooling water: ≤ 32 ℃ (water-cooling)Pressure of cooling water: 0.2 MPa - 0.4 MPa (water-cooling)Installation environment: dry, well-ventilated, dust-free place※Declaration when ordering if beyond the operating range.
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  • Non-thermal adsorption dryer
    发布时间： 2019 - 06 - 11
    Rated operating pressure: 0.7 - 1.0 MPa (Customized for special pressure)Rated operating pressure: 0.7 - 1.0 MPa (Customized for special pressure)Capacity1-150Nm³/minPressure loss≦0.02MPaInlet pressure0.45-1.0MPaAdsorbentAlumina/molecular sieveInlet temperature≦38℃Cycle time10min（adjustable）Inlet oil content0.08ppm(0.1mg/m³)Control modeAutomatic controlDew point of outlet gas -40～-60℃(Normal pressure)InstallationIndoor, no foundation installation is allowedDust in outlet gas≦60μmPower supply1Ph/220V/50HzAverage loss of regeneration gas10%-14%Power20-100W
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  • Combination adsorption dryer
    发布时间： 2019 - 06 - 11
    Ambient temperature℃Cooling typeAir-cooling, Water-coolingInlet pressure0.45-1.0MPaAdsorbentAlumina/molecular sieveInlet temperature≦38℃Inlet oil content0.01ppmPressure loss≦0.02MPaRefrigerantR22、R407, etcDew pointof outlet air -40～-60℃(Normal pressure)InstallationIndoor, no foundation installation is allowedDust in Outlet air≦1μmCycle time10min/1h/2h(Adjustable）Average loss of regeneration gas3%-7%Power supply3Ph/380V1Ph/220V
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  • Micro-thermal adsorption dryer
    发布时间： 2019 - 06 - 11
    Main technique parametersMain technique parametersRating capacity7-200Nm3/minPressure loss≦0.02MPaInlet pressure0.45-1.0MPaAdsorbentAlumina/molecular sieveInlet temperature≦380CRegenerative wayMicro-thermal regenerationInlet oil content0.08ppm(0.1mg/m3)Control modeAutomatic controlDew point of outlet air -40～-600C(Normal pressure)InstallationIndoor, no foundation installation is allowedDust in outlet air≦60μmPower supply1Ph/220VAverage loss of regeneration air5%-8%
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  • Refrigerating dryer
    发布时间： 2019 - 06 - 11
    Air capacity：0.85-210Nm³/minInlet pressure：0.2MPa-1.0MPaInlet temperature：type of low temperature ≤ 45 ℃, type of high temperature ≤ 80 ℃Cooling mode: air cooling (water cooling)Pressure dew point: 2 - 10 ℃ (0.7 MPa)Refrigerant：R22Pressure loss：0.02MPaTemperature of cooling water: ≤ 32 ℃ (water cooling)Pressure of cooling water: 0.2 MPa - 0.4 MPa (water cooling)Installation environment: dry, well-ventilated, dust-free place※ Declaration when ordering if beyond the operating range.
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Product Center
At present, it has a complete industrial chain of production, including: gas separation, pressure vessels, products of gas purification, products of gas refine and gas proportion, etc.
Technical centre
Release daily information of the company, frontier information of gas industry, application knowledge of equipment industry, common faults and daily maintenance plan, etc.
Contact Us
Guangzhou Weiton is located in Baiyun district of Guangzhou, there being expressway entrance/exit, near Baiyun airport, conveniently in transport. Warmly welcome you to visit the company.
Sales centre
Professional sales engineers cooperate with customers to verify and design their projects, and provide relevant technical data and data analysis. Arrange technicians to conduct preliminary relevant technical data and data analysis. Arrange technicians to conduct preliminarynal sales engineers cooperate with customers to verify and design their projects, and provide relevant technical data and data analysis. Arrange technicians to conduct preliminary relevant technical data and data analysis. Arrange technicians to conduct preliminary
  • 测试能力
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    专业的研发团队，领先的科技人才,潜心向前，打造.....
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  • 技术研发
    发布时间： 2014 - 07 - 01
    专业的研发团队，领先的科技人才,潜心向前，打造.....
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  • 实验装备
    发布时间： 2014 - 07 - 01
    专业的研发团队，领先的科技人才,潜心向前，打造.....
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solution
Nitrogen producing devices
Introduce： Pressure swing adsorption (abbr. PSA) is a gas separation technology. It bases on the different adsorption performance of various molecules in molecular sieves to separate the gases from their mixture. Air separation uses air as feed, and it can separate nitrogen and oxygen from the air by the selective adsorption of oxygen and nitrogen on a kind of high-effective and high-selectivity solid adsorbents. Separating nitrogen and oxygen with carbon molecular sieve is resulted from the different diffusion rate of the two gases in the molecular sieve, for the smaller the molecule (say oxygen) the more rapidly it diffuses into the solid phase of the molecular sieve. In such a way nitrogen can be enriched in the gaseous phase. Along the diffusing process, oxygen will be adsorbed to equilibrium in the molecular sieve, and then oxygen may be desorbed from the molecular sieve just by depressurization, for the adsorption capacity will decrease with pressure decrease. This process is called regeneration. Two towers are usually connected parallel to perform adsorption by pressurization and desorption by depressurization in turn, in order to obtain continuous flow of product nitrogen.
PDF Down Consultation
parameter

Nitrogen flowrate: 1 - 6000m³/h

Nitrogen purity: 95% - 99.9995% （100% - oxygen content）

Dew point:  ≤- 45℃（- 70 ℃ can be customized）

Nitrogen pressure: 0.5~6Bar，adjustable

Suitable environment: temperature -15～45℃    humidity<80%    excellent ventilation 

Compressed air conditions:

Temperature: 0-30℃

Pressure: 7.0-8.0Bar   

Pressure dew point:<10℃ 

Others: dust ≤ 0.01 μm   No oil, VOC and components of sulfur and nitro

※Declaration when ordering if beyond the operating range

※Too high temperature of the gas supplied will reduce the production capacity
principle

Pressure swing adsorption (abbr. PSA) is a gas separation technology. It bases on the different adsorption performance of various molecules in molecular sieves to separate the gases from their mixture. Air separation uses air as feed, and it can separate nitrogen and oxygen from the air by the selective adsorption of oxygen and nitrogen on a kind of high-effective and high-selectivity solid adsorbents. Separating nitrogen and oxygen with carbon molecular sieve is resulted from the different diffusion rate of the two gases in the molecular sieve, for the smaller the molecule (say oxygen) the more rapidly it diffuses into the solid phase of the molecular sieve. In such a way nitrogen can be enriched in the gaseous phase. Along the diffusing process, oxygen will be adsorbed to equilibrium in the molecular sieve, and then oxygen may be desorbed from the molecular sieve just by depressurization, for the adsorption capacity will decrease with pressure decrease. This process is called regeneration. Two towers are usually connected parallel to perform adsorption by pressurization and desorption by depressurization in turn, in order to obtain continuous flow of product nitrogen.
Technology

制氮机

Air compression: Air is compressed to the desired pressure (7 - 8 bar) by a compressor, and conveyed into an air feed tank in which a part of oil and water moisture condenses and drains out of the bottom of the tank. The air stream is kept at constant flowrate and constant pressure for the nitrogen producing system.

Air purification: Water moisture, oil and dust in the compressed air are removed through a refrigerating dryer and a filter, which supplies clean air feed for the following PSA system.

Nitrogen produced by PSA: The clean compressed air is conveyed into the principal devices of producing nitrogen, and switched automatically between the adsorbing tower to adsorb oxygen and the desorbing tower to desorb oxygen in turn by pneumatic valve control, and now nitrogen is enriched at the top of the towers and transported into a surge tank through pipelines. Then the steady nitrogen is conveyed to the nitrogen-using spots after detection and measure.。
To configure


制氮机

Function

Standard 
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High functions

Linkage

Energy saving

Hardware configuration

GEMU、BURKERT main valves

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Packings cylinder-pressed

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Emergency stop

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Purity analyzer

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Purity analyzer

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Automatical shut-off/vent

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AirTAC Solenoid valve

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SIEMENS Touch screen display

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SIEMENS PLC

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OMRON Intermediate relay

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SIEMENS extended module


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RS485/RJ45 communication port


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Digital flowmeter


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Pressure transmitter


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Interface linking auxiliary system



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Second muffling

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Software functions

Start mode setting

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Maintenance time setting

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Multifunctional alarm

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Multilevel password

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Instrument calibration cues

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Maintenance cues and protection

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Operating data storage

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Operating parameters modification

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MODBUS-RTU/TCP communication protocol


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Data Integration


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Paper-free simulating recorder


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Remote control



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Auxiliary system linkage



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Alarm setting

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Remote PC program

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Energy saving configuration

PDC pressure-difference control




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VFC varying frequency control




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PID steady flowrate output




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Introduce

Nitrogen producing devices


※ Energy efficiency grade: higher energy efficiency grade will means higher cost of manufacture.

General AStandard BEnergy-saving CHigh efficient D
120%100%95%86%


※氮气流量：指标准状况下氮气流量，单位：m³/h。


※ Purity level：Following table。

purity level~999959999995999999995Ⅱ
oxygen content~1%0.50%0.10%0.05%100ppm50ppm10ppm


※ When ordering, please select one of the product structures: skid-mounted, box-shaped, and movable.
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