Introduction to Boiler Structure Types
Zhongrui steam boiler is an electromechanical integrated equipment, which is composed of boiler body, burner, electric control cabinet, feed water pump, and pipeline valves and instruments. The unit is equipped with an original imported European burner, and the boiler body adopts a mature structure of horizontal internal combustion three-pass wet-back type. Fuel (oil/gas) is atomized at high speed under pressure from the burner and burns in the furnace with slight positive pressure. The high-temperature flue gas after combustion radiates heat exchange in the furnace, then turns into the second pass smoke tubes to the front smoke box, then turns 180 degrees into the third pass smoke tubes, and after the rear smoke box and condenser, it is discharged into the chimney and then into the atmosphere.
2. Technical advantages of the boiler body
In the layout of the convective heat exchange smoke tube area, the traditional design concept of "equal flow velocity" for the second and third passes is abandoned, and a new design idea of "equal resistance" is adopted to arrange the convective heat exchange surface. In the design of the furnace, the traditional design concept of determining the furnace diameter based on the flame diameter is broken through, and a large corrugated furnace structure is adopted, greatly increasing the radiation heat transfer area, reducing NOX emissions. In the convective heat exchange tube area, threaded smoke tube technology is applied, and the boiler efficiency reaches over 96.2%, greatly improving boiler efficiency. The smoke box adopts a double-sealed small smoke chamber structure, preventing smoke leakage and facilitating user maintenance. The insulation uses aluminum silicate fiber felt, providing good insulation effect. Due to our extensive work in combustion and heat transfer, adopting some new structures and technologies, the volume of this product is greatly reduced, reducing the floor space of the machine room and reducing weight.
3. Introduction to the overall characteristics of the boiler
High safety and reliability
The boiler combustion chamber adopts a corrugated furnace, which has good thermal expansion performance. The combustion chamber is equipped with an explosion-proof door, and the boiler body is equipped with high-sensitivity temperature, pressure, and water level sensors. The controller forms a highly reliable multi-level safety protection control system to ensure the safe operation of the boiler; the boiler has a large water volume, stable and reliable operation, and high heating quality.
High efficiency and energy saving
The boiler adopts a large furnace and corrugated furnace structure, increasing the radiation heat transfer area and facilitating full combustion of fuel. Applying fuzzy control technology based on artificial neural networks and world-renowned burners, automatic adjustment of combustion is achieved according to temperature, pressure, and time, so that the boiler can operate efficiently and economically under different conditions, minimizing fuel consumption.
Environmental protection
Low NOX combustion technology is adopted to optimize the boiler structure design, and the boiler combustion conditions are automatically adjusted through flue gas detection, ensuring that the boiler flue gas emissions meet the environmental protection requirements of China and even the world, with low operating noise.
Easy installation and maintenance
The front and rear smoke boxes of the boiler adopt a movable double-sealed structure, facilitating inspection, maintenance, and cleaning of the boiler interior. The boiler is integrally packaged, operates without vibration, and is easy to install quickly. The boiler computer controller can automatically record the time and cause of faults, facilitating maintenance personnel for repairs.
