Features of Full-Automatic Gas Boiler:
★ Low Nitrogen Condensing Gas Boiler, NOx emissions ≤ 30 mg/m³, and meets the requirements and standards of GB13271-2014 "Emission Standard of Air Pollutants from Boilers" and GB3096-2022 "Environmental Noise Standard for Urban Areas."
★ Utilizes a flue gas condensation cooler, with a well-designed furnace structure for fuel savings.
★ Featuring a new condensation design concept, advanced technology, attractive appearance, economic durability, low exhaust temperature, and meets environmental protection requirements.
★ Injection-type internal combustion E-type flue gas recirculation three-pass anti-flow structure, highly heat-exchange coupled water pipe and fire pipe, ultra-low NOx emission design ≤30mg/m³, double radiation large heat exchange area, and threaded flue pipe design for the convection tube bundle.
Air and gas are proportionally mixed using a proportional valve and premix control technology, ensuring uniform combustion on the surface of the metal burner, thus guaranteeing stable combustion and heat exchange. This further reduces emissions of nitrogen oxides.
★ This furnace type heat exchange system integrates the combustion chamber, flue, and water channel into a single design, featuring excellent heat conductivity without dead spots. By combining fluid dynamics and based on the laws of mass conservation, momentum conservation, and energy conservation, it reasonably applies the "wind tunnel" fluid dynamics to a staged heat exchange technology in gas boilers. The upper-side mounted burner allows the flue gas to flow from top to bottom, while the water flow in the furnace heat exchange system moves in the opposite direction from bottom to top, facilitating heat exchange. This effectively absorbs the sensible heat in the flue gas and the latent heat released during condensation, resulting in low exhaust gas temperature and achieving the goals of energy saving and environmental protection.
Short circuit protection, overload protection, leakage protection, abnormal temperature sensor protection, abnormal water level sensor protection, secondary overheating protection, excessive water temperature protection, low water level dry burning shutdown alarm, burner shutdown alarm due to flameout, and features scaling alarm function.
7-inch color touch screen, featuring an industrial-grade CPU module as the core controller, full Chinese text and graphic simulation with true-color dynamic animation, high-brightness LCD text and graphic interface, simulation operation indicators for burners and water pumps, real-time display of current working temperature and furnace water level, current year, month, day, and week time display, fault Chinese display and control parameters. Automatically saves fault records and provides Chinese prompts for fault information. Easy data analysis and historical operation data query with standard RS232/485 interfaces for connection to building automation or DCS systems, enabling group control of multiple boilers.
Our company has drawn upon the many advantages of similar well-known brand boilers and launched a self-controlled energy-saving, environmentally friendly, convenient, and aesthetically pleasing low-nitrogen atmospheric pressure hot water boiler that caters to China's specific conditions. This boiler is suitable for hotels, schools, hospitals, swimming pools, residential communities, and other institutions, providing 24-hour heating and hot water. When paired with a refrigeration unit, it can form a central air conditioning system for heating and cooling.
Horizontal E-type loop three-pass full wet-back structure, flanged butt-welded design.
1).喷射内燃E型三回程全湿背烟气结构: An all-in-one condensing low NOx gas boiler, the design of this product complies with the relevant provisions of NB/T 10941-2022 "Technical Conditions for Small Boilers and Atmospheric Pressure Hot Water Boilers", TSG 91-2021 "Boiler Energy Conservation and Environmental Protection Technical Code", and TSG 11-2020 "Boiler Safety Technical Code". The flue gas emissions meet ultra-low NOx emissions ≤30mg/m³. It adopts an E-type shell structure with a full wet-back design. The fuel passes through an upper-side mounted burner, causing the flue gas to flow from top to bottom, while the water flow in the boiler heat exchange system is in a reverse upward direction. Due to the effect of high-speed flame causing回流and entrainment in the furnace, the flue gas undergoes cross-exchange and turns 180° into the boiler, flue gas condenser energy-saving device, and coupled multi-functional heat exchange area of water pipes. After turning 180° again into the flue gas condenser for a second reverse heat exchange of flue gas water, it effectively absorbs the sensible heat in the flue gas and the latent heat released during condensation, resulting in low exhaust gas temperature. The flue gas is then discharged into the air through the chimney, achieving energy saving and environmental protection objectives.
The boiler is composed of the boiler body, base, insulation layer, steel frame, accessory instruments, flue gas condensing energy saver, and computer control system. The overall structure of the boiler body features an upper-mounted furnace pot with evenly and symmetrically arranged flue tubes at the bottom. The drum is made up of the cylinder and front and rear tube plates. The boiler body is焊接 from the cylinder and upper and lower tube plates. The furnace pot is焊接 from a large furnace pot, pot top, and inner tube plate. The large furnace pot structure increases the heat transfer area, enhances the rigidity of the furnace pot, and accommodates the free expansion after the furnace pot is heated. The convective tube bundle is焊接 from threaded flue tubes, which significantly enhance heat transfer, increasing the heated area, making the boiler structure compact, and reducing the footprint. The upper part of the boiler body is equipped with a manhole for easy internal inspection and regular maintenance cleaning. The down draft chamber is assembled in an integrated manner, offering good overall design, aesthetics, and elegance, without any potential for smoke leakage.
The smoke condensation energy saver is assembled from front and rear side panels, left and right side panels, and top and bottom tube plates. The convective tube bundle is welded from threaded smoke tubes and integrated with the boiler main body, resulting in low exhaust gas temperature. It effectively enhances thermal efficiency, reduces gas consumption, and diminishes nitrogen oxide emissions.
This furnace type heat exchange system integrates the combustion chamber, flue, and water channel into a single design, featuring excellent all-around heat conduction without dead spots. By combining fluid dynamics, it applies the "wind tunnel" fluid mechanics to a graded heat exchange technology for gas boilers, based on the laws of mass conservation, momentum conservation, and energy conservation.
2). Oversized Volumetric Counter-Flow Furnace Pot: This boiler utilizes a volumetric furnace pot, featuring a large combustion chamber that enhances the pot's rigidity while effectively reducing expansion stress. It strengthens smoke disturbance and increases the radiant heat transfer area. Efficiently utilizing radiant heat exchange, it boosts heat transfer efficiency and promotes combustion within the furnace. Coupled with a high-quality and reliable burner, the fuel is completely combusted, improving thermal efficiency and reducing harmful emissions in the flue gas, meeting environmental standards.
3). Threaded Heat Exchanger Tube: The threaded heat exchanger tube is a helical tube with an inward convex and outward concave structure. It is manufactured by cold rolling common straight tubes into threaded tubes. After heat exchange and flow resistance optimization, the heat transfer capacity of a single threaded tube is equivalent to 1.7-1.8 times that of a straight tube of the same size, enhancing heat exchange efficiency and improving thermal efficiency. This design effectively reduces the smoke resistance of the body. It enables high-speed turbulent flow of the flue gas, preventing tube blockage and strengthening heat transfer, reducing back pressure, and increasing heat exchange efficiency.
4). Sufficient heating surface area: According to the principle that the heat and temperature of the furnace radiant ring are proportional to the fourth power, the furnace has a large furnace胆 space with a large effective radiant heating surface, and a high proportion of radiant heat absorption in the total heat absorption. Due to the swirling effect of the high-temperature flame on the recirculation, the temperature field inside the furnace is uniform, effectively inhibiting the formation of NOx. It is a combustion method that is environmentally friendly, and also increases the convective heat transfer between the airflow and the heat exchange surface due to the turbulent action of the recirculation.
5). Large-capacity hot water storage room with unique structure: This storage room provides high-quality hot water sources for customers, capable of handling load fluctuations, instability, and peak changes promptly. It also features a curved water outlet device to maintain a constant hot water output, offering a high-quality water output curve. It prevents the formation of hot water collection dead corners inside the boiler and effectively inhibits scale formation.
6). Temperature-balanced water circulation system: The furnace body is entirely arc-shaped with no dead corners, ensuring even heat exchange and a faster achievement of the set pressure. Equipped with an internal recirculating water softener, it scatters the flushing of the heated surface inside the furnace during the return water process, guaranteeing stable and reliable operation.
7). Robust and durable boiler inner shell, clean and hygienic water quality: The boiler inner shell, as agreed upon in the contract, can be treated with anti-corrosion and anti-rust measures, offering excellent resistance to atmospheric corrosion. Its surface can form a protective film against corrosion, safeguarding the internal steel substrate. Moreover, this protective film also provides cathodic protection to the steel substrate, effectively extending the stable operation of the inner shell. Additionally, it features anti-rust, anti-corrosion, and anti-scale properties, protecting the welds of the inner shell while ensuring clean and hygienic water quality.
8). Rational furnace structure and convenient maintenance: Features an advanced and unique design for reliable and cost-effective operation of the boiler. The main pressure components are joined by flanged welding, ensuring high-quality welds; employs a new concept in balanced flue tube design, utilizing a fire and smoke tube heating method. These tubes are evenly positioned within the furnace, surrounded by boiler water. This structure features a spacious furnace interior and a large effective heating surface, optimizing the heating area and enhancing heat transfer and heat exchange efficiency. The boiler is equipped with inspection ports on both sides for easy maintenance and cleaning, simplifying the cleaning process and making repairs and maintenance extremely convenient, meeting the user's requirements for equipment operation and maintenance.
9). Advanced heat transfer technology with fast heat transfer rate and high thermal efficiency: Utilizes heat transfer and flow resistance technology from "Harbin Institute of Technology's Light Research Institute," employs threaded heat transfer flue pipes and optimized flue speed design. This ensures that the output and thermal efficiency of the boiler do not decline with extended operation time, allowing for stable heating. The thermal efficiency remains stable under various load levels, and the furnace design balances the flame volume of the burner and the heat exchange surface area to achieve an equilibrium flue gas temperature at the outlet of the exhaust pipe. The thick insulation layer ensures the boiler's outer surface area meets energy-saving requirements. Equipped with a flue gas condensation energy-saving device at the tail end, it recovers the waste heat of high-temperature flue gas, achieves low exhaust gas temperature, and saves fuel for the customer. It completely eliminates the drawback of other gas hot water boilers where the flue pipes accumulate soot, leading to increased gas consumption over time.
10). Stable and Reliable Control System: The control system includes protective measures, water and intake temperature control, and outlet temperature display. Temperature can be freely adjusted within the specified range. Intelligent control functions such as over-temperature protection, leakage protection, overcurrent protection, water shortage protection, phase loss protection, and fault alarms ensure the boiler operates normally. The control system features multiple interlocked protection and alarm designs, and is equipped with a full range of automatic protection measures. The thick-walled boiler heat-resistant steel pipes ensure stable operation. The boiler is designed at atmospheric pressure, and the body hydrostatic test is conducted at 0.2MPa. The dry burn prevention function is protected by a water level sensor to prevent water shortage, utilizing the conductivity of water to measure the water level for high precision control. If the boiler scale exceeds the standard, the boiler controller will automatically alarm and prompt, ensuring the boiler's longevity and safety, fundamentally preventing accidents, and facilitating maintenance.
11). Durable and Low Failure Rate: The overall consistency of the boiler structure, medium self-circulation velocity, and high-temperature flue gas velocity ensures that the furnace tubes will not burst due to scaling, thus guaranteeing both the stability of the boiler and the combustion efficiency of the burner. By reducing the number of operating cycles and load fluctuations, the equipment operates consistently under full load, enhancing efficiency and energy savings while decreasing failure rates; and by reducing load fluctuations, the equipment maintains a consistent operation under full load, further enhancing efficiency and energy savings. Equipped with automatic protection against over-temperature, leakage, and water shortage, it is stable and reliable.
12). Integrated Combustion Configuration System: Designed as a whole, this system integrates the hot water boiler and burner, tailored to the characteristics of ultra-low nitrogen atmospheric pressure hot water boilers. This design, a long-standing tradition of our factory, ensures a reasonable combustion ratio for the boiler, achieving a sensible blend of energy-saving and environmental protection technologies.
13). Excellent thermal insulation with minimal heat loss: Utilizes high-density silica aerogel felt and premium aluminum foil spun glass fiber wool for excellent thermal insulation properties.
14). Computer-Aided Design & Drafting: Utilizing CAD software for optimized design ensures excellent water circulation and low water flow resistance. Effectively optimizes the heat exchange coefficient of the furnace heating surface, enhancing thermal efficiency.
15). Meets Environmental Standards: During the condensation of water vapor in flue gas, harmful gases such as NOX and SOX are absorbed, resulting in significantly lower harmful emissions than the discharge standards. This can reduce harmful substances in the flue gas. The air is purified, benefiting environmental protection. This technology complies with social environmental and energy policies, adhering to the requirements and standards of GB13271-2014 "Emission Standards of Air Pollutants from Boilers" and GB3096-2022 "Environmental Noise Standards for Urban Areas."
16). Aesthetically Pleasing: The casing is made of industrial-grade white polyester paint coated flat packaging, which is attractive, sturdy, durable, and resists corrosion over long-term use.
17). Easy Installation: The boiler is factory-assembled with a compact structure, making installation quick and effortless. All electrical and control lines are pre-connected, simplifying the setup process. Just connect the water, power, and gas sources, along with the corresponding inlets and outlets, and the boiler is ready to operate. Quick and convenient installation.
One. Technical Parameters of Fully Automatic Fuel/Gas Atmospheric Pressure Hot Water Boilers
Right to redefine or modify product information without prior notice (including外形尺寸外形尺寸, control methods, internal structure, etc.)
2. Technical Specifications of Fully Automatic Fuel/Gas Pressure Water Boiler
Section 3: Technical Parameters of Fully Automatic Fuel/Gas Integrated Heat Exchanger Hot Water Boiler
1. Combustion heat values are calculated according to the following standards: diesel - 42,900 KJ/kg (equivalent to 10,248 kcal/kg), natural gas - 3,600 KJ/Nm³ (equivalent to 8,600 kcal/Nm³), and city gas - 16,000 KJ/Nm³ (equivalent to 3,800 kcal/Nm³).
2. If the gas source is natural gas, please provide the calorific value, gas pressure range, and altitude when placing an order.
3. Fuel consumption figures are based on full load operation of the boiler. Actual consumption may vary depending on operating conditions.
4. Retain the right to redefine or modify product information without prior notice (including appearance, dimensions, control methods, internal structure, etc.)
