On-Site Oxygen Supply for Glass Furnace Combustion
A PSA oxygen generator produces oxygen on site from compressed air and can provide a continuous oxygen supply for oxygen-enriched combustion in glass furnaces. Huatai supplied an HTO90-80 system for the customer’s new glass production line, configured to deliver 80 Nm³/h oxygen at ≥90% purity and 0–0.3 MPa.
Huatai designs and manufactures PSA oxygen generation systems based on the required oxygen flow, purity, pressure, operating schedule and installation conditions. The HTO90-80 was installed as a fixed indoor system to support the customer’s continuous production requirements.
Project Specifications
- Customer: Chongqing Hechuan Jinxing Glass Products Co., Ltd.
- Application: Oxygen-Enriched Glass Furnace Combustion
- Oxygen Generator Model: HTO90-80
- Oxygen Flow: 80 Nm³/h
- Oxygen Purity: ≥90%
- Delivery Pressure: 0–0.3 MPa
- Installation: Indoor Fixed Installation
- Installation: Indoor Fixed Installation
- Operating Mode: Continuous Operation
- Project Location: Sichuan, China
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Customer Background and Project Requirement
Chongqing Hechuan Jinxing Glass Products Co., Ltd. required a dedicated oxygen supply system for a new glass production line. Oxygen was needed to support oxygen-enriched combustion in the glass furnace, but no existing oxygen source was available at the project site.
To support continuous furnace operation, the customer needed an on-site oxygen generation system capable of delivering oxygen at the required flow, purity and pressure without relying on an existing gas supply network.
- Industry: Glass Products Manufacturing
- Project Type: New Production Line
- Application Point: Glass Furnace
- Oxygen Use: Oxygen-Enriched Combustion
- Existing Supply Condition: No On-Site Oxygen Source
- Operating Requirement: Continuous Oxygen Supply for Production
What Did the Customer Need?
| Project Requirement | Required Value |
| Oxygen Flow | 80 Nm³/h |
| Oxygen Purity | ≥90% |
| Oxygen Delivery Pressure | 0–0.3 MPa |
| Operating Mode | Continuous operation |
| Installation Environment | Indoor equipment area |
| Power Supply | 380/220 V |
| Control Platform | Siemens PLC |
Huatai’s Oxygen Generation Solution
Huatai configured an integrated on-site oxygen generation system covering compressed-air supply, air treatment, oxygen separation, oxygen buffering and automatic control. Each section was selected according to the required oxygen flow, purity, delivery pressure and continuous operating conditions of the glass production line.
The system includes:
- 1. Screw Air Compressor – Supplies compressed air to the oxygen generation system.
- 2. Air Receiver Tank – Stabilizes compressed-air supply before air treatment.
- 3. Three-Stage Filtration System – Removes particles and contaminants from the compressed air
- 4. Refrigerated Air Dryer – Reduces moisture in the compressed air.
- 5. Oil Removal Unit – Provides additional air purification before oxygen separation.
- 6. HTO90-80 Oxygen Generator – Produces oxygen at a rated flow of 80 Nm³/h and purity of ≥90%.
- 7. Oxygen Buffer Tank – Stabilizes oxygen supply before delivery to the furnace..
- 8. Siemens PLC Control System – Supports system monitoring and automatic operation..
This complete configuration was designed to provide the furnace with a stable on-site oxygen supply while simplifying daily operation and routine system management.
The HTO90-80 was integrated with compressed-air supply, air treatment and oxygen buffering equipment to form a complete industrial oxygen generator system.
Huatai configures complete Gas Generation Solutions according to the required gas type, flow, purity, pressure and site conditions.
How the System Supports Glass Furnace Operation
The system generates oxygen on site and delivers it to the oxygen-enriched combustion section of the glass furnace. It was configured to meet the production line’s specified oxygen requirements:
- Oxygen Purity: ≥90%
- Rated Oxygen Flow: 80 Nm³/h
- Delivery Pressure: 0–0.3 MPa
- Supply Requirement: Stable oxygen supply for continuous operation
The supplied oxygen is used to support oxygen-enriched combustion in the furnace. This configuration is designed to improve combustion conditions and help the customer manage natural gas consumption during glass production.
Actual fuel consumption depends on the furnace design, production load, operating parameters and oxygen injection strategy. No fixed natural gas saving percentage is stated for this project because comparative operating data was not provided.
Automatic Control and Daily Operation
The system uses a Siemens PLC to control valve sequences and standard operating procedures. Once the required parameters are set, the oxygen generation unit can complete its operating cycle automatically while key operating data is monitored through the centralized control platform.Automated Process Control
- Automatic PLC control
- Programmed valve sequencing
- Automatic operating cycles
Centralized Monitoring and Continuous Operation
- Centralized parameter monitoring
- Support for continuous production requirements
- Reduced routine manual operation
Installation and Maintenance
The system was configured for fixed indoor installation in the production facility’s designated equipment area. The equipment was arranged according to the operating sequence of compressed-air supply, air treatment, oxygen generation and oxygen buffering.
Routine maintenance mainly includes:
- Checking system operating parameters
- Inspecting filters and compressed-air treatment equipment
- Replacing applicable filter elements when required
- Servicing the screw air compressor according to its manufacturer’s instructions
- Inspecting valves, pipelines and connection points regularly
Applicable filter elements should be inspected and replaced according to operating hours, site conditions and the maintenance schedule supplied with the system. Following the equipment-specific maintenance plan helps support stable operation under continuous production conditions.
Filter elements, the air compressor and applicable system components should be maintained according to the operating conditions and the oxygen generator maintenance schedule.