I. Product range
1. Product model: DHX circulating fluidized bed boiler.
2. Rated thermal power: 35t - 220t (7MW - 154MW hot water boilers are customized according to customer needs and quoted separately).
3. Working pressure: 1.25 - 5.3 MPa (steam parameters are designed according to actual working conditions: saturated steam or superheated steam under corresponding pressure. The user needs to provide specific design parameters, and our company custom-designs it).
4. Others: Products can be specially designed and manufactured according to various parameter requirements put forward by users. Product types that meet customer needs are provided and customized.
II. Structural characteristics
1. It is a natural circulation single-drum water tube boiler with a TT-type structure.
2. The separation adopts a water-cooled/high-temperature insulated volute cyclone cylinder and is arranged outside the furnace.
3. The furnace is a membrane water-cooled wall suspended and closed structure.
4. The superheater, economizer and air preheater are arranged in the tail shaft.
5. Water-cooled air chamber and water-cooled air distributor plate are adopted.
III. Performance advantages
1. Good sealing performance. The furnace combustion chamber adopts a membrane water-cooled wall structure.
2. Adequate output. The heating surface is arranged fully and reasonably. The boiler heats up and pressurizes quickly. The load adjustment range is large and it can operate stably under 30 - 110% load.
3. Good anti-wear performance. Special anti-wear materials and construction techniques are used in the furnace.
4. High environmental protection and desulfurization efficiency. Sufficient combustion.
5. High separation efficiency. The separation efficiency is 99%.
6. Wide adaptability to coal types. Various inferior coals and coal gangue can burn well.
7. High degree of safety and automation. The boiler operation adopts remote and local monitoring. It is fully equipped with automatic control and monitoring instruments, safe and reliable, and easy to operate. Combining industrial automation control technology, Internet technology, computer software and artificial intelligence technology to establish an industrial boiler Internet of Things platform can realize remote human-computer interaction and data sharing.
The water quality standard of steam boiler when using chemical water treatment outside the furnace
Water quality requirements:GB/T1576 Water quality of industrial boilers
Note: Dissolved oxygen content: When the rated evaporation capacity of the boiler is ≥6t/h, it should be deoxygenated; when the rated evaporation capacity is < 6t/h, if local corrosion is found in the boiler, deoxygenation measures should be taken. The oxygen content of the boiler feed water for the steam turbine should be ≤0.05mg/L
Water quality standard for hot water boilers
DHX circulating fluidized bedboiler（35-220t/h）
1. In addition to the fuel in the above table, specific fuels such as lignite or local characteristic coal can be used according to user requirements to customize the boiler combustion chamber.
2, in addition to the steam parameters in the above table, the superheated steam parameters can be customized according to user requirements, such as: 5.3Mpa/550℃, customized design.
3. In addition to the rated evaporation in the above table, it can be customized according to user requirements such as: 140t/ h-220t/h.