Brand Name: Bangzi
Model Number: WNS/DZL
Place of Origin: Hebei, China (Mainland)
Water boiler for heating supply water heating boiler gas fuel water boiler coal fuel water boiler
WNS hot water
WNS series which are boiler of horizontal three pass fire tube with internal combustion. New design with structure of circular furnace wet back and larger volume burning room which can enhance burning efficiency and reduce the emission of Nox. Gas with high temperature is scouring the fire tube the second and third pass in turn. Then the gas is blown into atmosphere through chimney from the back smoke chamber. It used specifically thermal insulation material to lessen the heat loss. It is easy for maintenance due to install the hole for people and hand inside to clean.
General features of WNS series boiler:
1. horizontal , gas & oil fired , water tube, industrial and low pressure;
2. wetback and three-backhaulstructure design;
3. With high efficiency economizer, the thermal efficiency can reach more than 90%.
4. The spring-loaded type explosion door ensures the boiler safety
5. The removable smoke boxfacilitates the maintenance
6. Internal micro positive pressure combustionreduces the low temperature corrosion.
7. Equipped with protection devicesfor overheating, overpressure, lacking water, leak detection, flameout, etc. This ensures the boiler to operate safely and efficiently.
The product advantage:
1. Subulate furnace and corrugated furnace combination
Function: (1) Make the structure more compact; (2) improve the thermal efficiency; (3) relieve the expansion and contraction
2. Smooth tube and spirally corrugated tube combination
The smooth tube
Function: Prevent the exhaust from condensing inside the boiler to prolong its service life ;
The spirally corrugated tube
Function: (1) relieve the expansion and contraction; (2) Heat transfer enhancement;; (3) clean groove by itself.
3. The furnace sits in line with the combustion
Function: (1) Make the structure more compact; (2) prolong its service life.
Projects | Unit | WNS0.7 | WNS1.4 | WNS2.8 | WNS4.2 | WNS7.0 | WNS10.5 | WNS14 | |
Rated thermal power | MW | 0.7 | 1.4 | 2.8 | 4.2 | 7.0 | 10.5 | 14 | |
rated outlet water pressure | Mpa | 0.7 | 0.7 | 1 | 1 | 1 | 1.25 | 1.25 | |
rated inlet water temperature | °c | 70 | 70 | 70 | 70 | 70 | 70 | 70 | |
rated outlet water temperature | °c | 95 | 95 | 95 | 95 | 95 | 95 | 95 | |
quantity of circulating water | t/h | 24 | 48 | 96 | 144 | 240 | 200 | 266 | |
body heating surface | m² | 23.6 | 50 | 101.6 | 146 | 215 | 333 | 415 | |
design thermal efficiency | % | 91.7 | 91.8 | 91.9 | 91.9 | 91.9 | 92.3 | 92.2 | |
net weight of boiler | t | 5.1 | 8.2 | 13.1 | 18.5 | 25 | 36.8 | 45.1 | |
Full water volume of boiler | t | 2.9 | 5 | 8.8 | 11.3 | 19.1 | 24.3 | 30.9 | |
Total boiler weight with full water | t | 8 | 13.2 | 21.9 | 29.8 | 44.1 | 61.1 | 76 | |
fuel consumption | natural gas | Nm/h | 72.5 | 145 | 289 | 429.5 | 712 | 1054.5 | 1398.6 |
diesel | kg/h | 62 | 124 | 247 | 371 | 611 | 893 | 1188.6 |
DZL hot water
General features of the DZL series hot water boiler: Low pressure, horizontal, industrial, coal fired, fire tube, automatic chain grate steam boiler. The rated evaporation is between700kw to 14000kw.
Product advantage:
1. Spirally corrugated tube
Function: (1) Heat transfer enhancement; (2) Improve the suppleness to avoid the tube plate cracking; (3) Clean groove itself.
2. Arched tube plate
Function: (1) reduce the thermal stress of weld; (2) improve the tube plate suppleness; (3) simplify the structure and save the boiler room space.
3. Complete protection device
Function: deal with the situation of overpressure, over-temperature, water shortage and flameout.
4. Up-tube layout
Function: (1) Avoid the bulging on boiler drum; (2) Promote the water cycle (3)clean the sediment in the boiler bottom.
5. Airfoil flue
Function: Lower the high temperature of tube plate flue gas. And then reduce the thermal load of the boiler bottom.
6. The return water injector
Function: Increase the reliability of the water circulation and avoid the booster caused by the poor circulation.
Product feature
1. Low coal consumption and High thermal efficiency;
2. Reasonable water cycling, large water capacity and spacious steam volume;
3. Equipped with light chain belt assembly grate, blowing machine and draught fan.
4. High automation, mechanical adjustment of water supply, high and low water level alarm;
5. Low water and blowers interlocking protection;
6. Mechanical operation of boiler coaling, slag discharging;
7. Simple operation and quick installation.
Technical parameters
Projects | unit | DZL0.7-0.7 | DZL1.4-0.7 | DZL2.8-1.0 | DZL4.2-1.0 | DZL5.6-1.0 | DZL7.0-1.0 | DZL10.5-1.0 | DZL14-1.0 |
rated thermal power | MW | 0.7 | 1.4 | 2.8 | 4.2 | 5.6 | 7.0 | 10.5 | 14 |
rated outlet pressure | MPa | 0.7 | 0.7 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
rated outlet water temperature | ℃ | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 95 |
rated inlet water temperature | ℃ | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
heating area | s.m. | 23.6 | 43.1 | 95.6 | 146.8 | 175.5 | 220.3 | 368.7 | 431.6 |
active grate area | s.m. | 2 | 3.6 | 5.29 | 7.4 | 9.2 | 12.7 | 16.11 | 21.3 |
fuel | coal, biomass, biomass pellets, pellets, wood chips, wood pellets, sawdust, solid fuel, multi fuel, dual fuel...etc | ||||||||
coal consumption | kg/h | 190 | 377 | 751 | 1099 | 1400 | 1853 | 2250 | 2980 |
exhaust gas temperature | ℃ | 143 | 154.6 | 147 | 130 | 152 | 154 | 148.9 | 158 |
design efficiency | % | 78.8 | 78.35 | 78.8 | 81 | 80.8 | 79.9 | 80.89 | 80.7 |
max transport weight | t | 15 | 19 | 30.5 |
up 28 below7.5 |
up 32 below11 |
up 40 below32 |
up 32 below 29 |
up 32 below 37 |
Company Information
Workshop
We have totally five workshops which covers an area of nearly 3600 square meters and employ 600 person including more than 100 engineers and technicians. Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. Besides, we have received ISO9001 certification.
FAQ
Q1: How to install a boiler?
A1: Bangzi Boiler provides completed installation drawing and manual, or send engineer abroad for installation guidance
Q2:How many years is the boiler’s life span
A2: The boiler is designed for 10years life span, but under good maintenance, usually the boiler can use at least 16years, Bangzi Boiler provide full life after-sales service to each sold boiler
Q3: How to choose a boiler model?
A3: Confirm the type (steam or hot water), capacity, working pressure (or output temperature) and fuel(coal, biomass, gas or oil or other fuel) of the boiler, BangziBoiler will suggest a suitable model based on your usage.
Q4: How is the warranty term?
A4: If any problems caused for quality during the warranty period, the Seller will repair or replace the broken parts for free, if the problem caused from the client’s side, the Seller will help supply the spare part at lowest cost.
Customers
Our products have been exported to many countries all over the world, including Russia, Southeast Asia, South America, North America, Africa, Mid-East, Romania, Mengolia, Vietnam, Indonesia, etc. The quality of products and our after-sale services have won us good reputation in the oversea market. So we warmly welcome cusotmers to pay a visit to our factory so that they will have a better idea about us and our products.
Contact information:
Leeson Zhou
Cell/Wechat/Whatsapp: +86 13833185003
Skype: jayzhou860607
Website: www.bzboilers.com