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I. overview
Membrane method oxygen combustion technology for boiler using the air in each group points through the membrane permeation rate different. Under the pressure difference to drive, so that the oxygen preferentially through the membrane to obtain the concentration of oxygen in the air to reach 30%, membrane method has the advantages of simple equipment, convenient operation and safety, quick starting and scale Xiaoke, and do not pollute the environment, energy-saving effect is remarkable, and wider application, industrial developed countries known for creative technology in resources. The application of the results through the identification of the Chinese Academy of Sciences, is recognized as the national "eleven. Five" new technology focus to promote the project. At present, there are hundreds of film devices put into use.
Two, application areas and benefits
The application of oxygen is very extensive, such as all kinds of fuel, gas, coal-fired furnace (glass, cement, ceramics) all kinds of boilers, heating furnace, incinerator, heat medium furnace, blast furnace and smelting furnace combustion supporting energy-saving, environmental protection and catalytic cracking, desulfurization, wastewater treatment, engine oxygenation, oxygen health care, oxygen bar air-conditioning, plateau oxygen, oxygen rich (coal gas) and reaction, fermentation involving petrochemical, chemical, medicine, light industry, electric power, building materials, metallurgy, coal, transportation and aquaculture industry. For combustion supporting, according to the user returns the data, saving an average of 11.8%, up to 30%, an increase of 10.2%, improve quality, prolonging the service life, but also to eliminate smoke pollution, general a few months will be able to recoup their investment.
Three, energy-saving mechanism
1, improve the flame temperature
Due to the decrease of nitrogen gas, amount of air and flue gas volume were significantly reduced, so the flame temperature with the combustion air oxygen ratio increased significantly improve but rich oxygen concentration should not be high, the research at home and abroad show that, oxygen concentration in 26-33% is the best, and this also is is optimal concentration range of membrane oxygen enrichment, because higher oxygen concentration, flame temperature is increased a little, and oxygen investment costs soared.
2, to speed up the burning rate, and promote the burning, so as to cure pollution
Fuel in air and in pure oxygen combustion speed difference is very big, such as hydrogen in pure oxygen combustion rate is 4.2 times in the air, natural gas is as high as about 10.7 times, so oxygen enriched combustion, not only can improve the combustion intensity, accelerate the combustion rate and get better heat conduction, also because of increased temperature, there will be favorable to the combustion reaction completely, to fundamentally eliminate the pollution.
3, reduce the ignition temperature of fuel
The ignition temperature of fuel is not constant, such as CO in the air to 609 DEG C, in pure oxygen only 388 DEG C, so oxygen enriched combustion can increases fire intensity, and increase the release of heat.
4, reduce the amount of exhaust gas
With normal combustion air, nitrogen about 4/5 do not participate in combustion, but also take a lot of heat. Such as the use of oxygen enriched combustion, to reduce the amount of nitrogen, so after combustion exhaust quantity is also reduced, which can improve the combustion efficiency.
5, increase the utilization of heat
Heat oxygen enriched combustion, heat utilization rate is improved, such as with a normal combustion air, when the heating temperature of 1300 DEG C, which can be used for 42%, and 26% (volume percentage, following with oxygen enriched combustion air can heat utilization was 56%, increased by 14%, rich and oxygen concentration is larger, higher heating temperature, increasing the proportion of the more obvious, so energy-saving effect is better.
6, reduce the air excess coefficient
Instead of using oxygen enriched combustion air, may be appropriate to reduce the excess coefficient of air, in this way, the fuel consumption is reduced accordingly, thus saving energy.
Four, typical application examples
1, 1998 June in Jiangsu Funing chemical fertilizer plant of 20 tons of coal-fired boiler used by Jiangsu salt city energy conservation monitoring station detection, furnace temperature is increased to 90 DEG C, thermal efficiency is increased by 11% and Ringelmann blackness less than a level, stable boiler and prolong campaign life.
2, 1997 to April in Sichuan 63M2 high alkali ball kiln using, saving an average of 12.6% of natural gas, product yield and quality were significantly improved, prolonging the service life and environmental standards and other, less than five months will recover the full investment.
3, 1997 October in Jiangsu Oilfield four tons of oil furnace applications from the field of energy-saving monitoring station monitoring, tons of steam saving 16.64%, annual savings of crude oil more than 330 tons, furnace temperature increased about 50 DEG.
4, ZWZ after repeatedly investigation, study and repeated demonstration, the final confirmation and local oxygenated combustion technology for coal thrower boiler technological transformation is the present domestic similar technology is the most advanced, and at the end of 2001 in 2 sets 35 tons coal thrower boiler at the same time the successful application, over 10 years the group chimney black smoke was a fine history, Ringelmann blackness from grade 2 Average dropped to below grade 1 and energy saving of up to 14%, every coal saving more than 30 tons, the comprehensive benefit is very significant.
To Taishan fiberglass 1# unit kiln July 5, 2003, the average fuel saving up to 15%, and crown temperature decreased the 35.4 DEG C, glass liquid temperature rise 11.2 DEG C, combustion air volume fell nearly 1 / 4, wind pressure is reduced by 60%, the exhaust gas temperature decreased 60 DEG C, the oxygen enriched device has been in continuous operation is very stable. In addition 4# kiln is more than 3 times the amount of oxygen enrichment of 1# kiln, the investment of more than 100 all the oxygen.
Five, component models, specifications
Components are plate type, volume type and hollow three models; diameter has 30, 50, 100, 200250, length range: 150-3000 (mm).
Six, typical process
1 negative pressure method
General recommended negative pressure.

2 positive pressure method
If there is a compressed air pipeline, positive pressure method has more advantages, and compressed air pipe of the air quality better, 90-99% of the nitrogen rich gas. In addition air dew point lower. At the same time, less investment. General operating pressure for MPa 0.4-1.2 (absolute pressure).
Seven, technical indicators
1 oxygen enrichment concentration: 23-50% (the use of a volume type component, the highest oxygen concentration of up to 31%);
2 oxygen enrichment flow: 0.04-40000NM3/h (when the use of hollow components, but also to get 90-99% of nitrogen);
3 covers an area of 6 M2/ (300NM3/h oxygen enriched air) (not including the area of the circulating water tank, the positive pressure method is smaller);
4 power consumption: 0.05-0.15KW/NM3 oxygen enriched air;
5 membrane module life of about ten years, but also free maintenance, life-long quality service;
6 for combustion, saving is generally between 3-30%, of furnace and products without any side effects, and prolonging the service life, stable furnace condition, product yield and quality were improved, flue gas discharge standards, investment recovery period is usually less than a year.
Eight, service mode
My company is national engineering application promotion center in central and southern China general agent, strong technical force, in the enriched research, engineering design, system optimization and applications, such as the promotion of area tired rich experience. Especially the development of a leading international "local oxygen increasing", "symmetrical combustion" and "gradient combustion" high patent technology and CN00110217.7 CN97104465.1. The use of oxygen enrichment is generally only the amount of air required for 0.5-15%, but the original into the air and air volume were significantly reduced, the economic and social benefits are very significant.
We can provide users with membranes, components, devices, technical advice, training and one-stop service! To first-class technology and equipment, first-class service level, first-class service efficiency, dedicated to customer service.
I. overview
Membrane method oxygen combustion technology for boiler using the air in each group points through the membrane permeation rate different. Under the pressure difference to drive, so that the oxygen preferentially through the membrane to obtain the concentration of oxygen in the air to reach 30%, membrane method has the advantages of simple equipment, convenient operation and safety, quick starting and scale Xiaoke, and do not pollute the environment, energy-saving effect is remarkable, and wider application, industrial developed countries known for creative technology in resources. The application of the results through the identification of the Chinese Academy of Sciences, is recognized as the national "eleven. Five" new technology focus to promote the project. At present, there are hundreds of film devices put into use.
Two, application areas and benefits
The application of oxygen is very extensive, such as all kinds of fuel, gas, coal-fired furnace (glass, cement, ceramics) all kinds of boilers, heating furnace, incinerator, heat medium furnace, blast furnace and smelting furnace combustion supporting energy-saving, environmental protection and catalytic cracking, desulfurization, wastewater treatment, engine oxygenation, oxygen health care, oxygen bar air-conditioning, plateau oxygen, oxygen rich (coal gas) and reaction, fermentation involving petrochemical, chemical, medicine, light industry, electric power, building materials, metallurgy, coal, transportation and aquaculture industry. For combustion supporting, according to the user returns the data, saving an average of 11.8%, up to 30%, an increase of 10.2%, improve quality, prolonging the service life, but also to eliminate smoke pollution, general a few months will be able to recoup their investment.
Three, energy-saving mechanism
1, improve the flame temperature
Due to the decrease of nitrogen gas, amount of air and flue gas volume were significantly reduced, so the flame temperature with the combustion air oxygen ratio increased significantly improve but rich oxygen concentration should not be high, the research at home and abroad show that, oxygen concentration in 26-33% is the best, and this also is is optimal concentration range of membrane oxygen enrichment, because higher oxygen concentration, flame temperature is increased a little, and oxygen investment costs soared.
2, to speed up the burning rate, and promote the burning, so as to cure pollution
Fuel in air and in pure oxygen combustion speed difference is very big, such as hydrogen in pure oxygen combustion rate is 4.2 times in the air, natural gas is as high as about 10.7 times, so oxygen enriched combustion, not only can improve the combustion intensity, accelerate the combustion rate and get better heat conduction, also because of increased temperature, there will be favorable to the combustion reaction completely, to fundamentally eliminate the pollution.
3, reduce the ignition temperature of fuel
The ignition temperature of fuel is not constant, such as CO in the air to 609 DEG C, in pure oxygen only 388 DEG C, so oxygen enriched combustion can increases fire intensity, and increase the release of heat.
4, reduce the amount of exhaust gas
With normal combustion air, nitrogen about 4/5 do not participate in combustion, but also take a lot of heat. Such as the use of oxygen enriched combustion, to reduce the amount of nitrogen, so after combustion exhaust quantity is also reduced, which can improve the combustion efficiency.
5, increase the utilization of heat
Heat oxygen enriched combustion, heat utilization rate is improved, such as with a normal combustion air, when the heating temperature of 1300 DEG C, which can be used for 42%, and 26% (volume percentage, following with oxygen enriched combustion air can heat utilization was 56%, increased by 14%, rich and oxygen concentration is larger, higher heating temperature, increasing the proportion of the more obvious, so energy-saving effect is better.
6, reduce the air excess coefficient
Instead of using oxygen enriched combustion air, may be appropriate to reduce the excess coefficient of air, in this way, the fuel consumption is reduced accordingly, thus saving energy.

Four, typical application examples
1, 1998 June in Jiangsu Funing chemical fertilizer plant of 20 tons of coal-fired boiler used by Jiangsu salt city energy conservation monitoring station detection, furnace temperature is increased to 90 DEG C, thermal efficiency is increased by 11% and Ringelmann blackness less than a level, stable boiler and prolong campaign life.
2, 1997 to April in Sichuan 63M2 high alkali ball kiln using, saving an average of 12.6% of natural gas, product yield and quality were significantly improved, prolonging the service life and environmental standards and other, less than five months will recover the full investment.
3, 1997 October in Jiangsu Oilfield four tons of oil furnace applications from the field of energy-saving monitoring station monitoring, tons of steam saving 16.64%, annual savings of crude oil more than 330 tons, furnace temperature increased about 50 DEG.
4, ZWZ after repeatedly investigation, study and repeated demonstration, the final confirmation and local oxygenated combustion technology for coal thrower boiler technological transformation is the present domestic similar technology is the most advanced, and at the end of 2001 in 2 sets 35 tons coal thrower boiler at the same time the successful application, over 10 years the group chimney black smoke was a fine history, Ringelmann blackness from grade 2 Average dropped to below grade 1 and energy saving of up to 14%, every coal saving more than 30 tons, the comprehensive benefit is very significant.
To Taishan fiberglass 1# unit kiln July 5, 2003, the average fuel saving up to 15%, and crown temperature decreased the 35.4 DEG C, glass liquid temperature rise 11.2 DEG C, combustion air volume fell nearly 1 / 4, wind pressure is reduced by 60%, the exhaust gas temperature decreased 60 DEG C, the oxygen enriched device has been in continuous operation is very stable. In addition 4# kiln is more than 3 times the amount of oxygen enrichment of 1# kiln, the investment of more than 100 all the oxygen.
Five, component models, specifications
Components are plate type, volume type and hollow three models; diameter has 30, 50, 100, 200250, length range: 150-3000 (mm).
Six, typical process
1 negative pressure method
General recommended negative pressure.
2 positive pressure method
If there is a compressed air pipeline, positive pressure method has more advantages, and compressed air pipe of the air quality better, 90-99% of the nitrogen rich gas. In addition air dew point lower. At the same time, less investment. General operating pressure for MPa 0.4-1.2 (absolute pressure).
Seven, technical indicators
1 oxygen enrichment concentration: 23-50% (the use of a volume type component, the highest oxygen concentration of up to 31%);
2 oxygen enrichment flow: 0.04-40000NM3/h (when the use of hollow components, but also to get 90-99% of nitrogen);
3 covers an area of 6 M2/ (300NM3/h oxygen enriched air) (not including the area of the circulating water tank, the positive pressure method is smaller);
4 power consumption: 0.05-0.15KW/NM3 oxygen enriched air;
5 membrane module life of about ten years, but also free maintenance, life-long quality service;
6 for combustion, saving is generally between 3-30%, of furnace and products without any side effects, and prolonging the service life, stable furnace condition, product yield and quality were improved, flue gas discharge standards, investment recovery period is usually less than a year.
Eight, service mode
My company is national engineering application promotion center in central and southern China general agent, strong technical force, in the enriched research, engineering design, system optimization and applications, such as the promotion of area tired rich experience. Especially the development of a leading international "local oxygen increasing", "symmetrical combustion" and "gradient combustion" high patent technology and CN00110217.7 CN97104465.1. The use of oxygen enrichment is generally only the amount of air required for 0.5-15%, but the original into the air and air volume were significantly reduced, the economic and social benefits are very significant.
We can provide users with membranes, components, devices, technical advice, training and one-stop service! To first-class technology and equipment, first-class service level, first-class service efficiency, dedicated to customer service.