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Fire Tube Waste Heat Recovery Boiler WHRB

Date: 03-11-2016 Author: ailsa from ZG boiler

Fire tube waste heat recovery boilers were used extensively for industrial power generation till late 18th century.They are no longer used for large utility power plants.However,they are in still use in some industries for producing saturated steam with upper limit of pressure to 18 bar and capacity of 6.3 kg/s. Interestingly, general design of fire tube boiler has not changed much for last three decades.

Fire Tube Waste Heat Recovery Boiler WHRB

In fire tube waste heat recovery boilers the flue gas products of combustion flow through boiler tubes surrounded by water. The heat transferred through the walls of the tubes to the surrounding water generates steam.

The flue gases are cooled as they flow through the tubes, transferring their heat to water. Therefore, the cooler the flue gases, the greater the amount of heat transferred.Cooling the flue gas is a function of heat conductivity of the tube material,the temperature difference between the flue gases and water in the boiler, the heat transfer area, the time of contact of the flue gases with tube wall etc.

Fire tube waste heat recovery boilers used today evolved from the earlier designs of a spherical or cylindrical pressure vessel mounted over the fire with flame and hot gases around the boiler shell.Installing longitudinal tubes in the pressure vessel and passing flue gas through the tubes have improved this obsolete approach.This improves the heat transfer coefficient and increases the heat transfer area. The results are the two variations of the horizontal return tubular boiler (HRT).

Fire Tube WHRB working principle.jpg

A parallel evaluation of fire tube waste heat recovery boiler is the locomotive boiler with the furnace surrounded by a heat transfer area and a heat transfer area added by using horizontal tubes.

Fire tube waste heat recovery boiler advantages:

1. Low first cost
2. Reliability in operation
3. No need for skilled labour
4. Less draught is necessary
5. Quick response to load change: fire tube boiler is having large water storage and thus can meet sudden load demands with only small pressure change

Fire Tube Waste Heat Recovery Boiler.jpg

Fire tube waste heat recovery boiler Features:

1.Good for small steam requirement
2.Good for community hot water/domestic hot water generation
3.It must be used when gas pressure is high
4.Useful even when the gas is corrosive, the shell side is then free from corrosion
5.All the tubes are immerged in water
6.Limited applications- In industrial plants it is used to produce saturated steam. Scotch Marine boilers have been using for waste heat recovery.
7.Recommended to use at a pressure below 18 bar and steam flow rate of 6.2 kg/s.

Keyword: Industry steam boiler,Waste Heat Recovery Boiler,Fire Tube WHRB

Source: https://www.zgsteamboiler.com/news/Fire-Tube-Waste-Heat-Recovery-Boiler-WHRB.html

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Packaging & Delivery

Packaging Detail:Wooden box package of Fire Tube Waste Heat Recovery Boiler WHRB

Delivery Detail:20-40 days after payment

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We have over 70 years' experience of industrial steam boiler and autoclave, and we have a professional installation and after-sales staff for products.Take advantage of the most economical way to improve efficiency and operating flexibility, Get substantial savings on your fuel costs,Reduce all emissions for each K/W of electricity generated, including CO2.

How about the quality of Fire Tube Waste Heat Recovery Boiler WHRB?

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Our industrial steam boiler manufactured strictly according to national and international standard. our products have approved ASME, IBR, ISO9001-2008, etc

All our company's products are 100% factory inspected to ensure the high quality.

We provide one year quality warranty service, please rest assured purchase.

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ZG service ensures that this will not happen. During installation of industrial steam boiler, 1-2 experienced engineering and technical personnel will be sent for the site representative for technical tests and installation instructions free of charge; processing the various problems arising in the course timely while installing.

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/Fire-Tube-Waste-Heat-Recovery-Boiler-WHRB.html

Pre:  Steam boiler for cattle feed plant cost

Next:  Exhaust gas heat recovery boiler manufacturer

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