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Vertical Natural Circulation Water Tube Boiler With Coal / Biomass Fuel

Vertical Natural Circulation Water Tube Boiler With Coal / Biomass Fuel

  • Vertical Natural Circulation Water Tube Boiler With Coal / Biomass Fuel
  • Vertical Natural Circulation Water Tube Boiler With Coal / Biomass Fuel
  • Vertical Natural Circulation Water Tube Boiler With Coal / Biomass Fuel
  • Vertical Natural Circulation Water Tube Boiler With Coal / Biomass Fuel
Vertical Natural Circulation Water Tube Boiler With Coal / Biomass Fuel
Product Details:
Place of Origin: Zhangjiagang,China
Brand Name: HD BOILER
Certification: ISO9001,ASME,Grade A,SGS,EN
Model Number: DHL
Payment & Shipping Terms:
Minimum Order Quantity: 1 Set
Price: Negotiable
Packaging Details: Seaworthy Packing
Delivery Time: Negotiation
Payment Terms: L/C, T/T, Western Union
Supply Ability: 25 Sets Per Year
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Detailed Product Description
Condition: New Type: Natural Circulation
Usage: Industrial Style: Vertical
Fuel: Coal / Biomass Output: Steam / Hot Water
Structure: Water Tube Port: Shanghai
High Light:

industrial hot water boiler

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coal fired hot water boiler

Vertical Natural Circulation Water Tube Boiler With Coal / Biomass Fuel​

 

Product Description

 

A cornertube boiler is a type of natural circulation water-tube boiler which differentiates itself from other water tube boilers by its characteristic water-steam cycle and a pre-separation of heated steam from the steam-water mixture occurs outside the drum and the unheated downcomers.

 

Principle

 

Cornertube boilers were developed for small steam output. The design was based around two factors that, along with excellent water circulation, should be appropriate cooling even at light loads. Its special feature is its Monocoque body i.e. the unheated downcomers form the supporting frame work and not the thermally loaded tubes, hence the name corner tube boiler.Moreover, the piping-arrangement (system) is also responsible; to manage the riser tubes and water distribution in riser tubes and down comers and to collect the steam water mixture and to make a certain amount of pre-separation of steam and water mixture.Put simply, the water circulation takes place simultaneously through the drum and through the unheated down comers outside the drum.

 

Technical parameters

 

Model DHL10 DHL15 DHL20 DHL25 DHL35 DHL65 DHL75 DHL100
Evaporator t/h 10 15 20 25 35 65 75 100
Work pressure MPa 1.25,1.6,2.5 1.6,2.5,3.82,5.4
Steam temperature 194,225,300,350,400 225,300,350,400,450,485
Feedwater temperature 20,50,104,130,150
Burning method   Layer burning(Grate)
Boiler efficiency % ≥82 ≥84
Fuel consumption Kg/h 1450 2175 2900 3625 5075 8264 9532 14500
Main steam pipe(DN)   125 150 200 200 250 250 300 300
Valve(DN)   50 50 50 65 80 100 150 200
Chimney diameter(¢) Mm 670 870 870 1000 1000 1250 1400 1400
Toatal power consumption KW 72.15 104.5 155.9 225.9 359 642 838.5 785.5
Grate weight m2 12 16 22 27 32 64 72 93
Induced draft fan Kw 37 55 90 110 185 310 400 400
Blower 15 22 30 55 90 160 185 185
Feed pump 15 22 30 55 75 160 240 185
Coal supplier 2.2 2.2 2.2 2.2 3 3 3 3
Slag 2.2 2.2 2.2 2.2 3 4 5.5 5.5
Speed reducer 0.75 1.1 1.5 1.5 3 4 4 5
L 12000 13000 13000 13000 14500 16700 19000 21000
W 7000 7000 8000 8000 9800 14500 14500 16000
H 9000 9500 10000 12000 12000 15000 15000 17000

Fuel:Bagasse, Biomass, Lignite, Coal,Bituminous coal, Scaly Bark, Fuel gas, Industrial waste, khuff gas, MFO(marine fuel oil), Organic matter, Oil, Litter, Rice hulls, Rubberwood, Sludge, Wood, Woodchips.

 

Advantages

 

• Self supporting construction by the four downcomers.
It can expand from the base in all directions and adapt to different operating conditions.
The thermal expansion is from top to bottom and with the usage of grate firing the grate firing the thermal expansion difference is minimised there by manifesting the sealing between grate and the boiler.
The shorter path of water supply to the riser tubes leads to faster and more reliable operation on different loads and a quick start up.

It can be coupled with Concentrated solar power plant (CSP) as well in order to have increased efficiency ( above 33%) where the main fuels are Biomass, Landfill gas and Wood.
Construction and arrangement of heating surfaces is flexible as water can be supplied directly from the drum which is placed quite far away from heating surfaces.
Low risk of Foaming . As the water and the steam-water mixture which is fed into the drum maintains the same and constant level all the time leaving the space above water level in drum ( please refer to the schemactic diagram pic).
Quick load variations and reliable operation in variable loads and at any significant change in pressure as the water level in the drum is stable and remains inaffected from turbulence.
Less steel is needed as there is no lower boiler drum and moreover the absence of lower drum eliminated unwanted thermal stresses.

Vertical Natural Circulation Water Tube Boiler With Coal / Biomass Fuel 0

Company Introduction

 

Established in 1985,Zhangjiagang Hua Dong Boiler Co.,Ltd.(trading as HD Boiler),produces power plant; industrial; waste heat; waste incineration; biomass; organic heat carrier and electric steam boilers. Coupled with a comprehensive range of heating surfaces, HD Boiler brings to the market a unique service including boiler design , fabrication, installation, maintenance and replacement of boiler pressure parts.

 

1. Fabrication area of 200,000 square meters

2. 80 Engineers

3. 200 Coded welders

4. 30 Licensed Inspectors(NDT Level-III instructors)

5. Class-A Licenses for Design and Manufacture Boiler

6. ISO 9001:2015 Quality System

7. ASME Certificate of Power Boilers

8. ASME 'S','U' and NB stamp authorization

 

Contact Details
Zhangjiagang HuaDong Boiler Co., Ltd.

Contact Person: Elsie 李晨

Tel: +8615950971709

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Contact

Address: Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China

Factory Address:Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China