Waste Heat Thermal Oil Boiler

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Product Introduction

Description

The Waste Heat Thermal Oil Boiler is a highly efficient heat energy recovery and utilization device. It does not directly burn fuel, but is installed at the exhaust vents of various industrial waste gases, utilizing the high-temperature waste heat contained in the flue gas and exhaust gases generated during industrial production as a heat source. Using thermal oil as the heat carrier, this waste heat is recovered and converted into high-temperature thermal energy, outputting high-temperature thermal oil to meet production process requirements. Simultaneously, it can generate steam or hot water through heat exchange, achieving cascaded energy utilization.

Core Advantages

Extremely High Energy Efficiency:

By recovering waste heat from exhaust gases, fuel consumption of existing heating systems is significantly reduced. The overall system thermal efficiency can reach over 95%, effectively reducing enterprise operating costs.

Low-Pressure, High-Temperature Operation:

The high boiling point of the heat transfer oil allows it to achieve temperatures far exceeding those of steam at extremely low operating pressures. The system boasts high safety, as it does not require the high pressures of a steam boiler.

Stable and Reliable:

The forced circulation or multi-loop coil design ensures sufficient flow velocity of the heat transfer oil within the heating surface, preventing localized overheating and coking, and guaranteeing long-term stable operation. Precise oil temperature control effectively improves the quality of heated products.

Multi-Purpose and Comprehensive Utilization:

In addition to heating the heat transfer oil for the main process, a steam generator or economizer can be installed at the tail end to utilize residual heat to produce steam or hot water, meeting the needs of domestic heating or other auxiliary processes.

Environmental protection and emission reduction:

The reuse of waste heat directly reduces greenhouse gas emissions and thermal pollution to the environment, meeting the requirements of carbon neutrality and sustainable development in modern industry.

Product Parameter Table

Thermal Oil Heater Specifications (10,000 kcal/h)	120	200	300	400	600	800	1000	1200
Thermal Oil Heater Flue Gas Temperature (°C)	350	350	350	350	350	350	350	350
Thermal Oil Heater Flue Gas Volume (Nm³/h)	2800	4600	7000	9300	14000	19000	23000	2600
Waste Heat Boiler Steam Pressure (MPa)	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6
Waste Heat Boiler Steam Output (t/h)	0.27	0.44	0.65	0.87	1.34	1.83	2.23	2.73
Waste Heat Boiler Used	0.3	0.5	0.8	1	1.5	2.0	2.5	3.0
Flue Gas Temperature Before Dust Collector (°C)	150	150	150	150	150	150	150	150
Annual Steam Production (t)	1944	3168	4680	6264	9648	13176	16056	19656

Structural Features and Working Principle

The Waste Heat Thermal Oil Boiler typically employs a modular or horizontal/vertical structure to adapt to different installation spaces.

1. Working Principle:

High-temperature waste gas enters the boiler body through the inlet and flows through a designed multi-pass heating surface. Heat is transferred to the heat transfer oil inside the tubes through the tube walls. The heat transfer oil is forced into liquid-phase circulation by a circulating pump, absorbing heat and increasing in temperature. It is then transported to the heat-using equipment to release heat, and then returns to the boiler for reheating, forming a closed-loop cycle.

2. Main Structural Features:

Coil-type Design: Employing a multi-loop, closely spaced coil structure (such as square or round coils), the heat exchange area is greatly increased, ensuring sufficient heat exchange between the flue gas and the heat transfer oil during flow. Some designs utilize a three-pass structure to extend the flue gas flow path and improve heat exchange efficiency.
High-Efficiency Heat Exchange Elements: For flue gas with high dust content, bare tubes or finned tube heat exchanger bundles can be selected according to specific operating conditions to balance heat exchange efficiency with ash accumulation and wear issues.
Thermal insulation and furnace walls: High-quality insulation materials and outer protective panels are used to minimize heat loss while ensuring the airtightness of the flue gas system and preventing flue gas leakage.
Soot removal structure: Appropriate soot removal doors or soot blower interfaces are designed to address potential particulate matter in the flue gas, facilitating maintenance and preventing ash accumulation from affecting heat exchange efficiency.

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