Is it necessary to buy a boiler for central heating?

Central heating is the main way of heating in winter in northern China, which ensures residents to spend the cold winter economically and comfortably. Many users don't know the principle of central heating, or even need to buy a boiler for central heating. As a well-known boiler brand in the market, ZOZEN Boiler has many experiences in central heating projects, so it is necessary to explain them to you.

Is it necessary to buy a boiler for central heating?

Central heating refers to the way that hot water or steam is used as the heat medium, and one or more heat sources supply heat energy to the heat users in cities, towns or some areas. Boilers are the heat sources in the central heating system. Is it necessary to buy a boiler for central heating? Naturally, the answer is yes. Heating companies purchase boilers and manage and maintain them, thus ensuring stable heating in the covered areas.

Type recommendation of central heating furnace

Knowing whether you need to buy a boiler for central heating can't solve the problem of boiler procurement, but also know what common types of central heating boilers are.

1. Gas-fired boiler:

The gas-fired boilers are designed with large hearth, which has the characteristics of full-automatic operation, achieving high efficiency, energy saving and safe operation. The furnace body is made of high-quality aluminum silicate fiber, and then insulated with refractory mud. The furnace body temperature is controlled below 45℃ to effectively control the heat loss.

Capacity: 0.7-116MW 1-110t/h

Working pressure: 0.7-1.6MPa

Thermal efficiency: over 98% (take ZOZEN gas boiler as an example)

Applicable fuels: natural gas, biogas, liquefied petroleum gas, blast furnace gas, heavy oil, light oil, diesel oil, methanol, etc.

Type of boiler:

WNS series gas (oil) boiler

SZS series gas (oil) boiler

2. Coal-fired boiler:

Circulating fluidized bed boiler is a mature clean coal technology with high efficiency and low pollution, which belongs to low-temperature combustion, so the emission of nitrogen oxides is low, only about 100 mg/nm, and it can realize direct desulfurization in the combustion process with high desulfurization efficiency. Moreover, the technical equipment is economical and simple, and its initial investment and operation cost of desulfurization are relatively low, so it is a common boiler type in China at present.

Capacity: 1.4-140MW 10-100t/h

Working pressure: 1-5.3MPa

Thermal efficiency: over 89% (take ZOZEN boiler as an example)

Applicable fuels: bituminous coal, anthracite, lean coal, lignite, gangue, garbage, sludge, etc.

Type of boiler:

SHX series circulating fluidized bed boiler

DHX series circulating fluidized bed boiler

3. Biomass boiler:

Biomass boiler uses biomass as fuel, and its carbon emission is balanced with the carbon absorbed by fuel, so it is a valuable zero-carbon boiler. Among them, ZOZEN Boiler has a reasonable structure design according to different fuel characteristics to ensure the full combustion of fuel; It solves the common problems of ash deposition, coking, abrasion, arch before burning, burning hopper and so on.

Capacity: 2.8-116MW 2-75t/h

Working pressure: 0.7-1.6MPa

Thermal efficiency: more than 88% (take ZOZEN boiler as an example)

Applicable fuel: biomass particles, palm shells, coconut shells, sawdust, straw, corncob, rice straw, etc.

Type of boiler:

DZL series biomass boiler

SZL series biomass boiler

DHL series biomass corner tube chain grate boiler