Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, a B-grade boiler installation license, and GB2/Class and GC2/Class pressure pipeline installation licenses, as well as an equipment and machinery installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the Council Member of the Shandong Equipment Manufacturing Association. The company has also passed the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the American ASME/U2 certification.
The internal structure of an automatic biomass boiler typically includes the following main components:
Combustion Chamber: The combustion chamber is the area inside a biomass boiler where combustion takes place. It typically consists of a burner, combustion chamber walls, top, and bottom. The combustion chamber provides the space and oxygen required for combustion, allowing biomass fuel to burn and produce thermal energy.
Chimney System: The chimney system is designed to guide flue gases produced by combustion out of the combustion chamber. It includes flue pipes, chimneys, and flue gas purification equipment, etc. The design and layout of the chimney system can effectively enhance the efficiency of flue gas emissions and heat energy utilization.
Heat Exchanger: A heat exchanger is a crucial component in biomass boilers, used to transfer the thermal energy from the flue gas produced by combustion to water or other working substances. Common types of heat exchangers include tubular heat exchangers and flue tube heat exchangers. The design and material selection of the heat exchanger are key to improving

When selecting biomass boilers, pay attention to the following factors:
Fuel Adaptability: Different types of biomass boilers are suitable for various fuels, such as wood chips, straw, and waste crops. When selecting a biomass boiler, consider the availability and cost of the required fuel to ensure the boiler can accommodate the type of fuel being used.
Boiler Power and Heat Load: Select the appropriate biomass boiler power based on the heated area and heat load requirements. An under-sized boiler power may not meet the heating needs, while an oversized boiler power will result in energy waste.
Combustion Efficiency: Combustion efficiency is a critical indicator of boiler energy utilization. Choosing biomass boilers with high combustion efficiency can reduce energy consumption and carbon emissions.
Equipment Quality and Reliability: Choose a biomass boiler manufacturer with an excellent reputation to ensure reliable equipment quality, stable operation, and reduced downtime and maintenance costs.
Environmental Performance: Focus on the environmental performance of biomass boilers, including emission standards and flue gas treatment systems. Choose boilers that minimize environmental pollution.
Control systems and automation levels: The control systems and automation levels enhance the operational efficiency and stability of biomass boilers, reducing labor and management costs.
After-sales Service & Technical Support: Choose suppliers with excellent after-sales service and technical support to ensure prompt access to technical assistance and repair services during use.
In summary, when selecting biomass boilers, consider fuel adaptability, boiler power and heat load, combustion efficiency, equipment quality and reliability, environmental performance, control systems, and level of automation.

A biomass boiler economizer is a device used to recover waste heat from flue gas, which serves to enhance the boiler's thermal efficiency and reduce energy waste. The economizer achieves this by transferring heat from the flue gas to the boiler's incoming water, preheating it and thereby reducing fuel consumption.
According to their different structures and working principles, biomass boiler economizers can be categorized into the following types:
Tubular Economizer: A common type of economizer, it consists of a series of parallel pipes. Flue gas flows over the outside of the pipes, while feedwater circulates inside them. Heat transfer through the tube walls allows for the recovery of waste heat from the flue gas.
Finned Economizer: The finned economizer is an improvement on the tubular economizer, featuring fins that increase the heat transfer area and efficiency. It is suitable for higher flue gas temperatures.
Direct-Flow Economizer: The direct-flow economizer is a structure that separates flue gas and incoming water, achieving cross heat transfer between them through multiple parallel flue gas and water channels, thereby enhancing heat transfer efficiency.
Recirculation refers to reintroducing the waste heat of the economizer back into the boiler combustion area to enhance combustion temperature and thermal efficiency. Recirculation can be controlled by adjusting the recirculation ratio, which is generally adjusted as needed during the boiler's operation. Recirculation can increase combustion temperature, improve the completeness of combustion, and reduce pollutants.

To improve the thermal efficiency of biomass boilers, the following measures can be taken:
Optimize the combustion system: Ensure the biomass boiler's combustion system operates effectively with high combustion efficiency. Combustion technologies such as fluidized bed combustion and chain grate combustion can be utilized to enhance combustion efficiency and thermal energy utilization.
Control fuel quality: Select biomass fuels by volume, such as dry wood chips, straw, etc., and avoid fuels with high moisture content. High-moisture fuels consume extra heat for water evaporation, reducing combustion efficiency.
Properly Adjust Fuel Supply: Adjust the fuel supply quantity according to actual needs to avoid over-supply or under-supply. Over-supply leads to fuel waste, while under-supply affects combustion efficiency.
Control combustion temperature: Maintain an appropriate range of combustion temperature to avoid excessive or low temperatures. High combustion temperatures lead to heat loss in fuel, while low temperatures can affect combustion efficiency.
Regular cleaning and maintenance: Regularly clean the combustion chamber, flue, heat exchanger, and other components of the biomass boiler to keep them clean and unobstructed. Accumulated ash and dirt can affect heat conduction and heat exchange efficiency, reducing thermal efficiency.
Utilize waste heat recovery technology: Employ waste heat recovery units to utilize the residual heat from combustion for heating systems or other applications.
Zhongjie Special Equipment adheres to the great vision of "realizing employees' dreams, creating value for customers, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry. We commit to society with high-quality, cost-effective products and services!