Central heating means that the steam or hot water generated by the central heat source can supply the heat needed for production, heating and living of a city (town) or part of the area through the pipe network. Central heating sources include cogeneration power plants, central boiler houses, industrial and other waste heat, geothermal, nuclear, solar energy, heat pumps, etc., or they can be multi-heat source combined heating systems composed of several heat sources. At present, the heating boiler with hot water or more. They are mainly concentrated in hotels, residential areas and large heating enterprises.
In recent years, there are two types of hot water boilers: chain boiler and circulating fluidized bed boiler. Chain hot water boiler accounts for 80%, fluidized bed hot water boiler accounts for 20%. The chain boiler has mature technology, simple operation, low cost and low combustion efficiency. The circulating fluidized bed boiler has high combustion efficiency, but the operation is more complicated and has higher requirements on operation management. General hotel school district heating, generally using oil - gas boilers and electric boilers.Boiler Model SelectionOnline Consulting
How to Choose the Suitable Boiler
Determine Boiler Medium
For heating enterprises that do not supply steam for industrial production but only provide heating for residents, the first choice is the hot water boiler as the heating boiler. Because the operation of hot water boiler is safer, more stable and more economical than regular boiler, meanwhile, the heating radius of hot water is about twice that of steam, and the maximum heating radius can reach 20 km.
Determine Boiler Capacity
General heating boilers are calculated according to area. For general residential, 1 ton of boiler heating area is 6000~8000 square meters. For the common workshop and other higher places and cold areas, heating area should be relatively reduced.
Determine Boiler Fuel
Boilers are divided into fuel oil gas boilers, coal-fired boilers, biomass boilers, electric boilers. The state strictly controls the coal-fired boilers. The gas-fired boiler should consider whether it is convenient to install the gas pipeline. If it is not convenient, oil-fired or electric boilers should be considered.
Boiler thermal efficiency
Boiler should has high efficiency. The boiler output, the number of sets and other performance can adapt to the demand of heat load change, in order to facilitate economic management. If the use of one boiler operating at full load can meet the demand for steam, it is not appropriate to use two boilers operating under lower load. However, from the perspective of safety production, it is necessary to consider whether a single boiler in operation can be started quickly in a short time due to failure, so as to meet heating requirements without affecting production.
Capacity and Model
It is better to select the boilers with same capacity or combustion equipment. If different, the max limitation is two models, to decrease the problems of equipment layout and management.
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