Brief Description:
The YLL/YGL series organic heat carrier heaters are forced-circulation boilers featuring either a chain grate or a fixed grate. The boiler consists of an upper assembly and a lower grate/fixed-grate section, which are assembled on-site.
The heating surface of the boiler shell comprises tightly coiled, circular tube arrangements, consisting of both inner and outer layers. The spacing between the coils is designed to accommodate the specific fuel type, helping to minimize ash deposits.
The butt-welding of the heating surface tubes is performed using automated gas-shielded welding processes and specialized equipment; 100% real-time, in-line X-ray inspection is also available, ensuring consistent and reliable weld quality.
The boiler is designed for compact assembly, consisting of smaller, manageable components that allow for a short on-site installation cycle.

Features:
1. High efficiency and energy conservation

The heat exchange surface of the heater shell utilizes a tightly coiled tube structure. A multi-pass, S-shaped flue gas flow path ensures a high heat transfer coefficient and superior thermal efficiency.
The boiler exhaust is equipped with a high-efficiency air preheater or an energy-recovery unit (for steam or hot water generation) to capture residual heat, lower the flue gas temperature, increase overall thermal efficiency, and reduce fuel consumption.
The boiler incorporates high-quality insulation materials and a specialized structural design, resulting in minimal heat loss.
The grate and furnace arch are purpose-designed, with independently adjustable airflow, ensuring uniform and complete coal combustion while offering broad adaptability to various coal types. Integrating industrial automation control technologies, Internet technologies, computer software, and artificial intelligence to create an IoT platform for industrial boilers enables remote human-machine interaction, data exchange, and automated control.

2. Safe and Reliable

The heating surface of the boiler body consists of tightly arranged coils, optimally positioned to effectively reduce the thermal load on the tube surfaces. Furthermore, the use of a thermal oil medium enhances operational safety.
The flow rate of the medium is well-regulated; the thermal oil transitions from a lower velocity at the inlet to a higher velocity at the outlet. Any gases generated during operation are easily removed from the system, preventing them from becoming trapped within the furnace.
The furnace roof is constructed using a tightly arranged coil arch, which prevents burnout and ensures a long, continuous service life.
The boiler system incorporates remote and on-site multi-parameter monitoring, along with a full suite of automated control and instrumentation tools.

3. Environmental Protection: Appropriate flue gas treatment equipment is configured in accordance with local environmental regulations, ensuring that flue gas emissions meet all environmental protection standards.
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