Oxigen Generator For Offshore Demolition

 

The role of PSA oxygen generator in offshore dismantling
 

 

Support cutting and welding

In offshore demolition of large metal structures, oxygen generators supply high - purity oxygen. Mixed with fuel gases, they raise flame temperature, boosting cutting efficiency by 30% - 50% for smooth cuts and firm welds, enabling efficient demolition.

Ensure breathing safety

For divers and operators in confined or diving areas, oxygen generators produce pure breathing oxygen. Paired with professional gear, they offer a stable supply, preventing oxygen - deficiency risks like dizziness and suffocation.
Improve equipment stability

Given the harsh offshore setting, traditional cylinders have supply issues. Oxygen generators, producing oxygen on - site, keep cutting, welding, and breathing systems running steadily, minimizing equipment failures from oxygen cut - offs.
Reduce costs and risks

Oxygen generators cut down on transportation costs and risks of cylinder - related collisions and leaks during transport. They also prevent operation halts due to low oxygen, thus reducing overall demolition expenses.
 

 

 

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work principle

 

 

Oxygen production principle

Pressure swing adsorption (PSA): Utilize the difference in the adsorption characteristics of molecular sieves for different gas molecules. Under a certain pressure, impurity gases such as nitrogen are adsorbed on the surface of the molecular sieve, while oxygen molecules can pass through, thereby achieving oxygen separation. When the molecular sieve adsorption reaches saturation, the pressure is reduced to desorb it, and the adsorption capacity is restored. This process is circulated to continuously produce high-purity oxygen. This method is simple to operate and can stably produce oxygen with a purity of about 90%-95%, which is suitable for the on-site needs of offshore demolition operations.

 

 

 

Oxygen output regulation principle

Pressure regulation system: The pressure inside the oxygen generator and the output pipeline are monitored in real time through a pressure sensor. According to different operational requirements, when high-flow oxygen is required, such as cutting thick metal structures, the control system will automatically adjust the valve to increase the pressure and increase the oxygen output; when low-flow fine welding or personnel breathing protection is required, the pressure will be reduced and the output will be accurately adjusted. This ensures that oxygen is supplied on demand, which not only ensures operational efficiency but also avoids waste.

 

 

 

Safety protection principle

Pressure and temperature monitoring: Equipped with multiple pressure sensors and temperature sensors, the pressure and temperature in the generator are monitored in real time. Once the pressure or temperature exceeds the set safety range, such as excessive pressure may cause equipment damage or explosion, and excessive temperature may affect the performance of the molecular sieve, the system will automatically activate the alarm device and take corresponding safety measures, such as cutting off the power supply, opening the exhaust valve, etc., to ensure the safety of equipment and personnel.

 

 

How to choose an oxygen generator for offshore demolition operations?

1. Performance requirements
The oxygen output depends on the scale of the operation, 5-10 cubic meters per hour or higher.
Cutting and welding require oxygen with a purity of more than 99%, and breathing oxygen 93%-99%.
The flow rate adjustment range is wide, 5-100 liters/minute can be adjusted as needed.
2. Technical principle
The pressure swing adsorption method is simple to operate, low cost, and fast gas production.
The electrolysis of water produces high purity oxygen but has high energy consumption.
The chemical oxygen production method is suitable for emergency or small operations.
3. Safety and stability
Choose a well-known brand with certifications such as classification societies.
Key components are made of corrosion-resistant and wear-resistant materials.
There are protections such as overpressure, overheating, and leakage.
4. Operation cost
The operation interface is convenient, and maintenance is simple and low-cost.
Consider procurement and long-term operation costs.
The shell and components are corrosion-resistant and shock-resistant, and the operating temperature is - 20℃-50℃.

 

1. What is the impact of the oxygen purity of the oxygen concentrator used in offshore demolition operations?
Oxygen purity is crucial for offshore demolition operations. For cutting and welding operations, high-purity oxygen (more than 99%) is usually required. High-purity oxygen can significantly increase the flame temperature, making cutting more efficient, the cutting surface smoother, and the welding more solid, which helps to improve the efficiency and quality of demolition work; and for personnel breathing, the oxygen purity is generally between 93%-99% to ensure that the workers breathe smoothly when working at sea, avoiding problems such as hypoxia and dizziness caused by insufficient oxygen purity.
 

2. How does the oxygen concentrator adapt to the harsh environmental conditions at sea?
Oxygen concentrators adapt to the harsh environment at sea in many ways. In terms of materials, its shell and internal key components are generally made of corrosion-resistant materials such as stainless steel to resist the erosion of high humidity and high salinity seawater; it has a certain degree of seismic resistance and can withstand the vibration of offshore platforms or ships to ensure the stable operation of internal components; its operating temperature range is usually between -20℃ and 50℃, and it can work normally under different offshore climate conditions, ensuring that even in extreme high or low temperature environments, it can provide a stable supply of oxygen for offshore demolition operations.
 

3. Compared with traditional oxygen cylinders, what are the advantages of using oxygen generators for offshore demolition operations?
Oxygen generators have many advantages in offshore demolition operations. Oxygen generators can generate oxygen on site and provide a continuous and stable supply of oxygen, while traditional oxygen cylinders have limited reserves and need to be replaced frequently, which may cause interruptions to operations; oxygen generators can adjust the flow and purity of oxygen according to different operational requirements, and can better meet the diverse needs of cutting, welding and personnel breathing;

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