ASME certification circulating fluidized bed hot water boiler

ASME certification circulating fluidized bed hot water boiler  

Introduction: 

Circulating fluidized bed is of low-temperature combustion, therefore, nitrogen oxides emissions of such boiler is much lower than that of coal-powder boiler, and such boiler could directly desulfurized during combustion process. Circulating fluidized bed boiler with high desulfurization rate is economical. 
Circulating fluidized bed boiler could adopt various coal types and has high combustion efficiency, which is especially suitable for low quality, low calorific value coal. 

Circulating fluidized bed boiler have Internal circulating fluidized-bed boiler and Exterior circulating fluidized bed boiler. Exterior circulating fluidized-bed boiler is engery saving CFB boiler with capacity 35-280 ton, Internal circulating fluidized-bed boiler is water cool CFB boiler with capacity 10-75 tph. Circulating fluidized bed combustion technology is a clean coal combustion technology that developed in the past 20 years, circulating fluidized bed steam boilers have wide fuel adaptation, high combustion efficiency, low NOx emissions, low cost of furnace limestone desulfurization, strong load adaptability, can burn low grade fuels and other advantages. Along with economic development and improvement of the living standard, urban central heating requirements gradually increased, and hot water heating has been developing rapidly in domestic within the past decade.

Specification:

Main Specifications of China supplier internally power plant circulating  fluidized bed hot water boiler 

Description:

HETG boilers are efficient, energy saving and environmental friendly, which can help power plants actualize low pollutant emission based on their advanced technology and reliable running.

High efficiency: combustion efficiency 96~99%, carbon content in ash only about 2%, efficiency of boiler reaches 85%.

- Suitable for various kinds of coal.

- Load can be adjusted in the range of 25%~110%, average 5% in one minute.

- Clean combustion and environment friendly.

- Use lime stone mixed into the fuel for desulfuration, rate up to 84%.

- NOx emission capacity can be controlled to 150ppm or less.

- Ash with low carbon content can be used for cement or construction materials.

The accessory of power plant high thermal efficiency CFB boiler 

1. Water wall panels: placed aroud the boiler combustion chamber 

Boiler water walls are membrane walls that are made of tubes welded together with or without a strip of metal in between. These walls form the enclosure of the coal combustion chamber. Water wall tubes are also referred to as the evaporator section; they contain water mostly in liquid form which gradually evaporates as it rises in the boiler.