500kg Industrial Wood Chip Fired Steam Boiler for hotel, hospital,
school,swimming pool
1.Boiler model:wood chip fired steam boiler
2.Boiler capacity:0.5-4ton/h
3.Pressure:1.0Mpa(10bar),1.25Mpa(13bar),1.6Mpa(16bar),2.5Mpa(25bar)
4.Steam temperature:184 °c,194°c, 204°c,226°c(As long as below 226°c,we can do it)
5.Fuel:coal,wood, wood pellet, firewood, log
6.Structure:horizontal water-fire tube, single drum
7.Type:There are two types.One is DZL chain grate stoker automatic
feeding fuel and removing dregs type. Another is DZH manual coal
feed type coal fried boiler.
8.Application:Medicine, chemical, light industry, textile, building
material, cultivation, food and beverage, plastic foam, printing,
dyeing and washing, rubber processing, paper products,wood
processing, hotel, clothing and leather manufacturer etc.
DZH biomass horizontal steam boiler, is a horizontal three - return
water - fire tube hybrid boiler, in the boiler barrel arranged with
a bunch of threaded smoke pipe.The left and right sides of the
furnace chamber are equipped with water cooling walls of light
pipes.It adopts light movable grate, manual feeding, equipped with
blower and induced draft fan for mechanical ventilation.The front
and rear arches of the furnace adopt new energy saving
technology.After the fuel falls on the grate, enters the furnace
and burns, the flame, through the rear arch refraction, turns
upward through the burning Chambers on both sides of the body,
turns back to the front smoke box, and then returns to the tube
bundle in the pot through the front smoke box, enters the
economizer through the rear smoke box, and then is pumped by the
induced draft fan to the air through the flue to the chimney.
Structure
Combustion process:
The fuel enters the furnace and burns on the grate. The flue gas
from the production enters the convection tube bundle on both wings
along the bottom of the boiler barrel through the smoke outlet on
the middle partition wall, enters the threaded smoke pipe through
the front smoke box, passes through the dust collector, and is
pumped and discharged into the atmosphere through the chimney by
the induced draft fan.
Technical characteristics
(1) The pot barrel is composed of arch tube plate and threaded
smoke pipe, so that the pot barrel is changed from a quasi-rigid
body to a quasi-elastic body structure, and the stretch parts in
the tube-plate area are eliminated to reduce the stress.The smoke
pipe in the tube plate is changed from two return journey to single
return journey, which solves the problem of crack in the tube
plate.
(2) The bottom of the pot is arranged with an ascending pipe row,
which eliminates the stagnant area at the bottom of the pot and
makes the mud residue not easy to deposit. The high temperature
area of the pot can be well cooled to prevent the bottom bulge of
the pot.
(3) High efficiency heat transfer threaded smoke pipe is adopted to
enhance the heat transfer effect and achieve the characteristics of
boiler heating up and rapid pressure boost, thus improving the
thermal efficiency of the boiler.
(4) Compact structure, compared with the same type of boiler, the
shape size is small, save investment in boiler house
infrastructure.
(5) Stable operation, convenient adjustment and sufficient output.
Technical Parameter
Model
Item | DZH0.5-0.7-AII
DZH0.5-1.0-AII | DZH1-0.7-AII
DZH1-1.0-AII
DZH1-1.25-AII | DZH2-0.7-AII
DZH2-1.0-AII
DZH2-1.25-AII
DZH2-1.6-AII | DZH4-1.25-AII
DZH4-1.6-AII |
Rated evaporation
capacity (t/h) | 0.5 | 1 | 2 | 4 |
Working
pressure(Mpa) | 0.7/1.0 | 0.7/1.0/1.25 | 0.7/1.0/1.25/1.6 | 1.25/1.6 |
Rated steam
temperature(℃) | 170/184 | 170/184/194 | 170/184/194/204 | 194/204 |
Feed water
temperature(℃) | 20 | 20 | 20 | 20 |
Effective area of
grate(m2) | 1.28 | 2.1 | 3.36 | 5.2 |
Fuel consumption
(Kg/h) | 76 | 150 | 301 | 602 |
Exhaust flue gas
temperature(C) | 165 | 165 | 165 | 165 |
Thermal Efficiency
(%) | 80 | 80 | 80 | 80 |
| Size(m) | 3.2x 2.0x 2.6 | 4.1x 2.2x 2.9 | 4.7x 2.3x 3.2 | 5.6x 2.5x 3.5 |
| Weight (t) | 8 | 12 | 15 | 22 |
Automatic control and fault protection of steam boiler
Boiler steam pressure automatic regulation system: boiler steam
pressure automatic regulation system control system into the
working state, in meeting the necessary conditions for combustion:
when the steam pressure in the boiler is higher than or equal to
the set pressure limit, the control system output stop signal.Until
the induced draft fan is stopped.
Feed water automatic control: when the system is on duty and
working normally, start the feed water pump, the water pump works,
the water level differential pressure transmitter detects the water
level signal, and keeps the water level of the pot stable.Ensure
the quality of steam.The water level regulating instrument shows
the boiler water level.
Manual control: The water pump can also be manually controlled by
touching the key on the control panel.
Fault alarm and protection
The control system can monitor the current working conditions of
the steam boiler in real time and carry out real-time and
comprehensive intelligent fault identification and treatment.The
control system can diagnose and deal with the following faults in
real time:
Extremely high steam pressure protection: When the steam in the pot
is overpressured, the control system will immediately enter the
chain, and sound and light alarm will be given, and the screen will
display "extremely high steam pressure".After the fault is
eliminated, press the reset button to break the chain.
Protection of water shortage in boiler: in case of extremely low
water level failure due to pump failure or other reasons, the
control system will immediately shut down the power supply of
induced draft fan, enter the chain, and alarm with sound and light,
and the screen will show extremely low water level.After the fault
is eliminated, press the reset button to break the chain.
Ultra high boiler water level: when the water level in the pot is
higher than the upper warning level, sound and light alarm will be
given.Prompt "ultra high limit of water level in the pot", the
display screen prompt drainage.Automatic recovery after the fault
is eliminated, stop the pump without stopping the furnace.
Water pump motor overload: heat relay action when water pump motor
overflows, cut off the power supply of water pump motor and stop
water pump, realized by hardware.
Power failure: In case of power failure, the control system will
immediately shut down the power supply of all equipment in the
cabinet.When the power is restored, the cabinet will be in the
off-duty state automatically. It is necessary to restart the
machine and start the equipment to ensure the safety of the
equipment.
Application for biomass steam boiler
Wood fired steam boiler is suitable for painting room, drying box,
drying tower painting line and other purposes.It is especially
suitable for central heating in urban residential areas, industrial
production, enterprises and institutions, schools, hotels, bath
centers and other places where heating, hot water and steam are
needed.
Q1: How can you get the best price quickly?
(1)We need to know the boiler capacity, the fuel you plan to use
and the steam pressure you need, and then we can confirm the boiler
model.
(2) Customer needs to provide us your name, email address and
company name, and then we will send you price list immediately.And
if you use whatsapp, skype or wechat, you can provide us your ID,
it will be more convenient for our communication.
Q2: Why should you believe our boiler quality?
(1).Strength calculation report with applied materials information;
(2).100%NDT(non-destructive inspection) report of steel plate, tube
and welding rod;
(3).100% X-ray inspection(welding seam): ensure the quality of
entire boiler;
(4).Hydrostatic test: ensure the standard working pressure and
safety;
(5).Passed SGS certificate.
Q3: What about the installation and Commissioning?
After you receive the boiler, we will guide you to make some
preparation for installation;If necessary, our expert will fly to
your local place in 72 hours. The experts will responsible for
guiding installation and commissioning. But the buyer will be in
charge of fee corresponding.
Q4:What is the using life of your boiler?
A:Normally the boiler is designed for 20 years life span, but with
right operation and good maintenance,the boiler can be used for
20-25 years.
