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How to improve the heat efficiency of steam boiler

Date: 05-21-2014 Author: ailsa from ZG boiler

Steam boiler is an industrial boiler which can produce steam through heating the water. With the complement of the energy-saving policy, all the industries launch a vigorous energy-conservation movement. As a large energy consumption machine, the improvement of heating efficiency of the steam boiler not only reduce the consumption fuel ,but also can save cost and reduce pollution.


With specific developing and researching experience, the ZG engineer share some constructive suggestions : Reasonably remold the heat exchanging surface:

For horizontal boiler , the original furnace arch should be removed, and the insulating layer and refractory bricks should be paved on the coal fired boiler’s furnace bed. For vertical boiler, a radiation pile should be constructed under the furnace, then a radiation arch is needed in the furnace.

Control the leakage volume of the furnace and flue. The looking-fire-hole of the boiler should be sealed. The flue and the duct should be seal reconstruction, especially when the air leakage is serious. When several boilers share a flue ,it is necessary to install separation device for every branch to prevent the smoke and the residual gas from being blowed in to the ceased furnace. Choose reasonable burner:

1.under the nominal steam pressure, the burner’s heat load must conform with the boiler’s requirements for that the complete combustion leads to excess air coefficient. This structure has other advantages : low noise, full flameness, strong radiant ability.

2.The load adjustment ratio should be accordance with the boiler and regulate the excess air coefficient.

3.It can realize the self-control system stipulated in the steam boiler safety technology supervision regulation. Other measures :

sensible utilization of the heatproof system and the waste heat. For the boiler without insulation system, it is better to install one. and keep the surface temperature between 50℃and 60℃ ,the heat loss of the surface within 3%. For the boiler with bad insulation effect, they should be restructured. Because there is no dust after restructuring, the boiler can be equipped with efficient coal economizer.

Increasing the conversion volume. At first the incrustation and ash layer of the furnace, header and other heating area. For water tube boiler, a smoke board is needed, which can increase flue gas flow, speed up the gas flow. For the fire tube boiler, a twist shape whirl disk or a spiral metal wire should be installed to accelerate the flue speed ,enhance the disturbance of the boundary layer, improve the conversion coefficient.

Keyword: Industry steam boiler,

Source: https://www.zgsteamboiler.com/news/How-to-improve-the-heat-efficiency-of-steam-boiler.html

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Industrial Steam Boiler Company Information--- ZG Boiler

Established:In 1945

Number of Employees:above 1500 People

Our products:industrial horizontal steam boiler and hot water boiler(biomass boiler, gas boiler, oil boiler, coal boiler, etc), CFB boiler, power plant boiler, waste heating recovery boiler, Pressure Vessel(AAC autoclave, Curing tank,etc )

Factory Size (Sq.meters):400,000 square meters

Factory Location:Factory 1: Zhengzhou,,Henan, China. Factory 2: Xingyang,Henan,China

Number of R&D Staff:376 people

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Export Percentage:30-40%

Total Annual Sales Volume:US$100 Million

Main Market:South America(Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Brazil, Bolivia, Chile, Paraguay, Uruguay, Argentina and French Guiana), North America(Bahamas, Canada, Costa Rica, Cuba, El Salvador, Guatemala, Honduras, Haiti, Jamaica, Mexico, Nicaragua, Panama), Eastern Asia(Mongolia / Russia / North Korea / South Korea / Japan), Oceania(Australia, New Zealand, Fiji), Mid East(Bahrain, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, UAE and Yemen, Palestine, Algeria, Libya, Morocco, Tunisia and Sudan, Mauritania and Somalia), Africa(Egypt, Sudan, Libya, Tunisia, Algeria, Morocco, Ethiopia, Somalia, Kenya, Tanzania, Sierra Leone, Liberia, Cote d'Ivoire, Ghana, Togo, Niger, Nigeria, Cameroon, Gabon, Congo (Brazzaville), Zambia, Zimbabwe, Angola, Mozambique, Botswana, Namibia, South Africa), South Asia(Nepal, Bhutan, India, Pakistan, Bangladesh, Sri Lanka, Maldives) Southeast Asia(Vietnam, Laos, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Brunei, the Philippines, East Timor) Domestic Market(China)

Source: https://www.zgsteamboiler.com/news/How-to-improve-the-heat-efficiency-of-steam-boiler.html

Pre:  Ventilation methods of gas fired steam boiler

Next:   the main evaluation index of the boiler used water

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