The double-furnace Endo generator integrates two reaction furnaces into one system. One can be used and the other is in standby, and can be maintained by taking turns to burn charcoal. It can also operate collaboratively during peak gas consumption. It solves the problem that a single generator must stop gas during charcoal burning, maintenance or failure, and is suitable for continuous production lines such as mesh belt furnaces and pusher furnaces. The Gosi Controls ENDOMATE™ Dual adopts this design.
- The two furnaces share control and pipelines, and one can be used and the other can be operated at the same time.
- The gas supply is not interrupted during maintenance or charcoal burning to ensure continuous production.
- A single furnace operates when the load is low, and the two furnaces work together during peak times to take into account energy consumption.
- Suitable for continuous furnaces and production lines sensitive to production shutdowns
Pain points of a single generator
endothermic gas generators require regular burning and maintenance. If the entire production line relies on only one generator:
- Gas cannot be supplied during charcoal burning, and the furnace must either stop production or switch to a temporary gas source;
- Sudden failure will cause all parts in the furnace to be exposed to the risk of oxidation and decarburization;
- Gas outages and restarts of continuous furnaces (mesh belt furnaces, pusher furnaces) are very costly.
Design ideas for double furnace bodies
The double-furnace generator sets up two independent reaction furnaces in a set of equipment, sharing some links in the mixing, control, cooling or conveying system. The description of ENDOMATE™ Dual on the Gosi Control official website includes: dual-mode operation (one standby and one in use or on at the same time), unattended operation, multiple gas production modes, electronic proportional control, energy consumption monitoring and a full set of data record traceability, patented atmosphere system and multi-level safety interlocking.
Three operating modes
| Model | Applicable scenarios | Income |
|---|---|---|
| One use and one backup | normal production | When the main furnace body fails or burns charcoal, the backup furnace body takes over and the gas supply is not interrupted. |
| Run in rotation | Long-term continuous production | The two furnace bodies work and maintain alternately to extend the overall life. |
| Run simultaneously | Gas consumption peak or production expansion period | Double gas production capacity to meet peak demand |
Typical cases
Gos Control delivered a 40 m³/h double-furnace Endo generator to Zhejiang Jieneng Auto Parts Co., Ltd. to provide protective atmosphere for 1–2 mesh belt furnaces in the workshop. It was mentioned in the project news that this structure realizes one-use and one-standby furnace or coordinated operation, uninterrupted gas supply during maintenance, and reduces the risk of process fluctuations. After the equipment is put into operation, it operates stably and passes acceptance.
Applicable and not applicable
Suitable:
- Continuous production lines such as mesh belt furnaces and pusher furnaces;
- Auto parts companies that have suffered heavy losses due to production suspension and tight delivery deadlines;
- Factories that wish to reduce backup gas sources such as methanol.
May not be necessary:
- Small workshops with single-shift production and can use downtime for maintenance;
- There are large-scale factories with multiple generators connected in parallel and equipped with redundancy.
Frequently asked questions
What is the difference between a double furnace and two single furnace generators?
Double furnaces are usually more integrated, share control and some pipelines, and are more convenient to occupy and switch; two independent generators are more flexible but the system is more complex. The choice depends on gas production and site.
Will the atmosphere quality be affected when switching furnace bodies?
A well-designed system will first allow the standby furnace to heat up and produce gas, and then switch to the gas quality to reduce fluctuations. Switching logic and interlocking are important things to understand when selecting.
Are double furnaces energy efficient?
Operating a single furnace during low load times prevents a large generator from operating at low load for a long time; operating double furnaces during peak hours is conducive to on-demand gas production.