The DZL series new water-fire tube boiler is a new eco-friendly
and energy-saving product co-developed by our company and
Professor Li Zhiguang—a famous boiler expert, professor of
Harbin Institute of Technology and director of Beijing
Institute of Light Boiler. It is called as a revolution of
industrial boilers by domestic and foreign experts. It adopts
the advanced water circulation technology, it improves water
circulation speed of high temperature zone, increases the flow
of bottom water, and avoids sundries deposition and scaling,
with stronger water quality adaptability than other furnaces.
Product
details
I. Sufficient and Steady Capacity
With efficient diabatic spirally corrugated tube, it is designed
by using heat transfer and flow resistance technologies of Harbin
Institute of Technology. The boilers actual capacity is ****5%
higher than name plate capacity. As the physical dimension and
smoke speed of the spirally corrugated tube are rational, and the
spirally corrugated tube doesnt form soot or wear when the boiler
normally operates, the boilers capacity and heat efficiency dont
reduce with the extension of operating time;
II. Rapid Warming and High Heat Efficiency
The main heating surface is installed in the shell, so it doesnt
leak cold air to the smoke side, and nearly a half of shell
surface is heated. The boilers heating up time is one third
shorter than other furnaces, and heat efficiency is the highest
in various furnaces;
III. Low
Original Dust Discharge Concentration, Environmental Protection
and Energy Conservation
It uses new arch and hearth with large volume, the rear of the
hearth has a dust separation reversing chamber, and the unburned
dust particles fall to the hearth for secondary combustion,
corresponding to primary dedusting in the furnace. Therefore, it
ensures that the original dust discharge concentration is lower
than national permissible value, reducing fuel consumption, and
protecting the environment;
IV. High Steam Quality
The optimally designed feeding apparatus reduces overhigh water
level in shell high temperature zone due to overheat; the
optimally designed steam separator facilitates vapour gravity
separation, and makes the steam humidity lower than 1%, obviously
lower than national standard of 4%;
V. Strong Water Quality Adaptability
By adopting the advanced water circulation technology, it
improves water circulation speed of high temperature zone,
increases the flow of bottom water, and avoids sundries
deposition and scaling, with stronger water quality adaptability
than other furnaces, reducing fuel consumption, and improving
operating time;
VI. Small Overall Dimensions and Low Boiler Room Investment
Cost
The main heating surface is installed in the shell, and small
capacity boiler can cancel the rear heating surface. Its overall
dimension is obviously smaller than other boilers. The boiler
below **0tons (*0MW) can be arranged in single layer, making the
investment of the boiler room save more than *0% than other
types;
VII. Low Operating Cost, Safety and Reliability
The adoption of advanced water circulation technology and
optimization of boiler structure improve the operating conditions
of the high temperature tube plate, water wall tube and shell
bottom. In normal water quality condition, it doesnt cause tube
explosion, tube plate cracking or shell bottom bulge. As the
boiler has large water capacity, it doesnt need special
protective measures in sudden power failure, and prevents damage
accidents of heating surface and shell medium due to
vaporization. The safe reliability is guaranteed, and operating
cost is far lower than other furnaces;
VIII. Short Installation Time, Low Installation
Cost
There are fast-delivery, assembly and semi-assembly type delivery
model. the installation period and cost can be lower by over
*0%.
Prodcut
structure
1.Water-fire tube structure
2.Wing-shape smoke flue
3.Spirally thread smoke pipe
4.Chain grate
Product parameter
table
|
DZL Series Steam Boiler Technology Parameter Table
|
|
|
Boiler Model
|
Rated capacity
|
Rated pressure
|
Feed water temperature
|
Steam temperature
|
Active grate area
|
Exhaust gas temp.
|
Design efficiency
|
Fuel consumption
|
Main part weight
|
Main part dimensions
|
Delivery Mode
|
|
t/h
|
MPa
|
℃
|
℃
|
㎡
|
℃
|
%
|
Kg/h
|
Ton
|
mm
|
|
DZL**1.*-AII
|
1
|
1
|
*0
|
**4
|
1.*5
|
**7
|
*0
|
**8
|
*4.2
|
***8×***0×***2
|
Package
|
|
DZL**1.**-AII
|
2
|
1.*5
|
*0
|
**4
|
3.4
|
**3
|
*0
|
**8
|
*3.2
|
***0×***0×***6
|
Package
|
|
DZL**1.**-AII
|
4
|
1.*5
|
*0
|
**4
|
5.*8
|
**0
|
*0
|
**2
|
*8
|
***9×***0×***4
|
Package
|
|
DZL**1.**-AII
|
6
|
1.*5
|
*0
|
**4
|
7.*5
|
**6
|
*0
|
**5
|
*7.6
|
***5×***0×***4
|
Package
|
|
DZL***1.**-AII
|
*0
|
1.*5
|
**5
|
**4
|
*2
|
**1
|
*0
|
***8
|
*6
|
***6×***3×***1
|
Assembled
|
|
DZL***1.**-AII
|
*5
|
1.*5
|
**5
|
**4
|
*8
|
**1
|
*1
|
***8
|
*8.8
|
***0×***0×***0
|
Assembled
|
|
DZL***1.**-AII
|
*0
|
1.*5
|
**5
|
**4
|
*2.9
|
**0
|
*1
|
***1
|
*9.1
|
***5×***3×***7
|
Assembled and Semi-Assembled
|
|
DZL***1.**-AII
|
*0
|
1.*5
|
**5
|
**4
|
*7.5
|
**7.6
|
*1
|
***0
|
*5.6
|
***2x***0x***0
|
Semi-Assembled
|
|
|
