PSA Oxygen Generator For Glass Fiber Industry

Psa Oxygen Generator For Glass Fiber Industry

The heat required for melting in glass fiber production is provided by fuel combustion. Traditional combustion uses 21% of oxygen in the air as a combustion-supporting gas. 78% of nitrogen in the air does not participate in combustion, but it will be heated, resulting in energy waste. High-temperature nitrogen easily reacts with oxygen to produce NOx nitrogen oxides, which will cause serious pollution to the atmosphere. Therefore, in order to reduce environmental pollution and improve combustion efficiency, pure oxygen combustion technology using high-purity oxygen (≥90%) as a combustion-supporting gas has emerged. At the same time, the production technology of obtaining high-purity oxygen through air separation has also been widely used in the glass fiber industry.

Generally speaking, pure oxygen combustion technology refers to the technology of using oxygen with a purity of ≥90% as a combustion-supporting gas and mixing it with fuel in proportion. Compared with air as a combustion-supporting gas, the flame temperature of pure oxygen combustion is higher, the temperature that the pool kiln can reach is also higher, the low amount of nitrogen improves the heat transfer efficiency, significantly reduces NO_x emissions, improves product quality and output, and reduces construction costs. Pure oxygen combustion has attracted widespread attention due to its advantages in energy conservation, environmental protection and economic benefits, and is gradually becoming popular. At present, pure oxygen combustion technology has been widely used in glass fiber production. According to data, more than 200 pure oxygen combustion pools have been put into use. Examples show that pure oxygen combustion can save about 40% of pool kiln fuel, reduce the emission of combustion waste gas by more than 60%, including nitrogen oxide emissions by more than 80%, SO₂ emissions by about 20%, and greatly reduce the amount of dust, reduce the entrainment of raw materials, save a lot of costs, and reduce the difficulty of tail gas treatment.

When the fiberglass pool kiln production line adopts pure oxygen combustion technology, the source of the required combustion-supporting oxygen is industrial oxygen. At present, the two most common methods for producing industrial oxygen are cryogenic method and pressure swing adsorption oxygen production method, both of which use air separation to produce oxygen to obtain high-purity oxygen. Pressure swing adsorption oxygen production is that the dust-removed air is sucked into the blower and enters the adsorption tower (molecular sieve) through the heat exchanger. Under a certain pressure, nitrogen is adsorbed by the molecular sieve, and oxygen is adsorbed less. After the oxygen in the gas phase is enriched, it enters the buffer tank. After the nitrogen adsorption in the tower is close to saturation, it is analyzed and the molecular sieve is regenerated and reused.
Generally, multiple towers switch adsorption, analysis and other links to achieve continuous oxygen supply. Pressure swing adsorption can obtain oxygen with a purity of about 94%. The cryogenic method is based on the different boiling points of gases in the air components. After the air passes through the compression system, cooling system and then completes the gas purification, it passes through the turbine system, fractionation and heat exchanger to separate oxygen, nitrogen and argon, and can obtain oxygen with a purity of more than 99%. At present, both technologies in the domestic market are relatively mature. Cryogenic technology has high oxygen purity, many by-products, and a large scale, which is suitable for large-scale oxygen use.
The oxygen purity of pressure swing adsorption oxygen production is relatively low, but it has the characteristics of low energy consumption, high flexibility, low cost, and simple process. In the case of not particularly large oxygen use and purity not higher than 94%, pressure swing adsorption oxygen production has great advantages.
When the pure oxygen combustion technology is used in the production of glass fiber pool kiln, the oxygen purity is greater than 91%, and the oxygen consumption is not particularly large. Generally, the gas consumption of a single production line will not exceed 3500Nm3/h. Even if there are multiple production lines and the locations are not concentrated, pressure swing adsorption oxygen production can meet the requirements. Considering the above conditions as well as economic costs, environmental protection, etc., pressure swing adsorption oxygen production is very suitable for supplying oxygen for pure oxygen combustion in glass fiber pool kilns.

• Simple process, flexible operation, easy start and stop

The PSA oxygen production process is relatively simple, and the main power equipment is the blower and vacuum pump. The oxygen production equipment only takes 30 minutes to produce qualified industrial oxygen at the beginning, and it can produce oxygen within 20 minutes if it stops temporarily. It is even simpler to stop the device, and you only need to shut down the oxygen production power equipment and program.

• Simple equipment and convenient maintenance

The main equipment blowers, vacuum pumps, programmable valves, control cabinets, etc. are all domestic equipment, and the cost and construction period are easy to control. In addition, the equipment maintenance is simple and the after-sales service is timely.
Users basically do not need to invest a lot of maintenance funds and manpower.

• Low energy consumption and low operating cost of oxygen production

Nowadays, the power consumption of PSA oxygen production has dropped to below 0.32kW·h/Nm3, and even the pure oxygen power consumption of large-scale deep cold oxygen production is at least about 0.42kW·h/Nm3. When the enterprise has no nitrogen demand and the scale of oxygen use is not particularly large, PSA oxygen production technology has obvious cost advantages.

• Short construction period, small footprint, and fast return on investment

The construction period of pressure swing adsorption can generally be controlled within 6 months or even shorter. Because the equipment is simple and the number is relatively small, the footprint is much smaller than that of deep cold. Users can use industrial oxygen produced by pressure swing adsorption in a short time under the conditions of low investment and low cost.

• Convenient load adjustment

When the power consumption of pure oxygen does not change much, pressure swing adsorption oxygen production can achieve rapid adjustment of output and purity. Generally, the output can be adjusted between 30% and 100%, and the purity can be adjusted between 70% and 95%. When multiple sets of oxygen production equipment work in parallel, load adjustment will be more convenient.

• Higher operational safety

Since pressure swing adsorption oxygen production is a low-pressure operation, and there will be no low temperature, acetylene enrichment and other phenomena, it is safer than deep cold oxygen production.

Q: How reliable is it in providing a continuous oxygen supply during long - term operation in the glass fiber production process?​
A: It is highly reliable. The advanced design and high - quality components ensure stable operation over extended periods. With redundant systems and self - monitoring features, it can maintain a continuous oxygen supply, minimizing any disruptions to the glass fiber manufacturing process.​

Q: What kind of maintenance does it require, and how often should maintenance be carried out?​
A: It requires regular maintenance to ensure optimal performance. Routine maintenance tasks include filter replacements, inspection of valves and pipelines, and checking the adsorption towers. Generally, preventive maintenance should be carried out quarterly, but it may vary depending on the operating environment and usage frequency.​

Q: How energy - efficient is it, and what impact does its energy consumption have on our overall production costs?​
A: It is designed with energy - efficient technology. The Pressure Swing Adsorption (PSA) process used in it consumes less energy compared to some traditional oxygen - generation methods. By reducing energy consumption, it helps lower your overall production costs in the long run.​

Q: How quickly can it be installed and put into operation at our glass fiber production facility?​
A: Installation time depends on the complexity of the setup and the size of the unit. However, typically, it can be installed and commissioned within 1 week. Our experienced installation team will work efficiently to ensure a smooth and timely start - up, minimizing any downtime for your production.​

Q: What is the oxygen purity level that it can achieve, and is it suitable for the high - quality requirements of glass fiber manufacturing?​
A: It can achieve an oxygen purity level of 95%. This high - purity oxygen meets the stringent quality requirements of the glass fiber industry, ensuring the quality and consistency of your glass fiber products.​

Q: How does it adapt to fluctuations in oxygen demand during different stages of the glass fiber production cycle?​
A: It is equipped with intelligent control systems that can detect and respond to fluctuations in oxygen demand. The system can adjust the production rate of oxygen in real - time, ensuring that the right amount of oxygen is supplied at each stage of the glass fiber production cycle.

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