-
技术文件编号
Technical document
No.
：
120G -SS
WZ-120/3.8-T
蔗
渣
锅
炉
Bagasse Boiler
设
计
说
明
书
DESIGN
DESCRIPTION
图号
Drawing No.: 120G-00
编制
Prepared
by
：
校核
Checked
by
：
审核
Reviewed
by
：
审定
Accredited
by
：
批准
Approved
by
：
广西梧锅锅炉制造有限公司
GUANGXI WUGUO
BOILER MANUFACTURE CO.,LTD
梧州市莲花山路
55
号
No.55, Lianhuashan
Road , Wuzhou, Guangxi, China
2011
年
10
月
October
2011
目
录
Contents
一、
锅
炉
概
述Ⅰ
,
Overview of the Boiler
---------------------------------2
二、
设
计
参
数
Ⅱ
,
Boiler Design Parameters
------------2
三、
锅
炉
主
要
设
计
依
据
Ⅲ
, Main Basis for Boiler
Design
-----------------------3
四、
主
要
技
术
经
济
指
标
Ⅳ
,
Boiler
Main
T
echnical
and
Economic
Index
--------------------3
五、
主
要
尺
寸
Ⅴ
,
Boiler Main Dimensions
-----------------
------------4
六、
结
构
简
述
Ⅵ
, Brief Description of
Boiler Structure
--------------4
1.
炉
膛
1,
Furnace:
------------------------------4
2.
锅
筒
2, Drum:
--------
--------------------------4
3.
燃
烧
器
3,
Burners:
---------------------------5
4.
过
热
器
及
减
温
器
4,
Superheater and desuperheater:
------------5
5.
省
煤
器
5, Economizer:
------------------5
6.
空
气
预
热
器
6,
Air preheater: ----------------5
7.
钢
架
及
炉
墙
7, S
teel frame and furnace
wall:
--------------------5
七、
锅
炉
安
装
Ⅶ
,
Boiler
Installation
-------------------------6
八、
辅
机
参
数
Ⅷ
,
Auxiliaries
Parameters
---------------------7
九、
锅
炉
受
压
部
件
水
容
积
表
Ⅸ
,
Boiler
Pressure
Parts
Water
Volume
T
able
---------7
十、
锅
炉
水
汽
质
量
Ⅹ
,
Boiler Water and steam
Quality
--------------7
十一、
锅
炉
仪
表
配
置
要
求
Ⅺ
,
Boiler
Instrumentation
Configuration
Requirements
---------8
十二、
经
济
运
行
操
作
指
南
（
说
明）
Ⅻ
,
Economy
Running
Operation
Guide
(Instruction)
--------9
一、
锅炉概述：Ⅰ
, Overview of the
Boiler
本锅炉是专为糖厂设计的蔗渣锅炉，
燃料是甘蔗
渣，
掺烧甘蔗叶
（比例低于
27%
）
。
This
boiler
is
a
bagasse
boiler
designed
specifically
for
sugar
refineries,
the
fuel
is
bagasse,
can
mixed with sugar cane
leaves ( but the ratio should be
less than 27%) .
锅炉为
< br>室外布置，自然循环单锅筒锅炉，采用
∏
型布置，钢构架
，炉膛部份悬吊，尾部烟道支
承。
The boiler is
outdoor layout, single drum natural circulation,
adopts
Π
-type layout, steel
frame, partly
furnace
is
top-supported
,
FG tail duct
is bottom-
supported.
炉膛前墙下部布置喷
渣口，
辅以倾斜固定炉排组织燃烧，
利用蒸汽除渣。
Th
e
lower front wall of
furnace
is equiped
with
b
agasse spray orifice,
supplemented by fixed-tilt grate to
combust, using steam to remove
slag.
炉膛左侧墙布置液压装置推送蔗渣叶，
配有独立固定炉排燃烧。
The left side wall of
furnace
is equiped with
Hydraulic actuator to
push the
bagasse leaves. Separate fixed
grate carries
out
combustion.
过热器分两级布置，高温过热器和低
温过热器之间布置喷水减温器，省
煤器分上下级，空气预热器为单级布置。
The superheater
is two-stage
layout, between the
high
temperature
superheater
and
low
temperature
superheater,
is
equiped
with
spray
type
attemperator,
the economizer
is divided
into
upper and
lower
two
stages, the
air preheater
is
single stage layout.
各部分受热面积为：炉膛
848m
2
< br>、防渣管
97.2
m
2
、高温过热器
398.9
m
2
、低温过
热器
485.6
m
2
、省煤器
2359.3
m
2
、空气预热器
7412.9
m
2
。
1
The
heating
surface
areas
of
all
parts
are:
furnace
848m2,
boiler
slag
screen
97.2
m2,
high-temperature
superheater
398.9
m2,
low-
temperature
superheater
485.6
m2,
economizer
2359.3 m2, air
preheater 7412.9 m2.
蔗渣燃料特性
：
Bagasse
fuel properties :
C
Y
=22.8%
H
Y
=2.86%
N
Y
=0.09%
O
Y
=21.23%
S
Y
=2%
W
Y
=50%
A
Y
=1.02%
V
Y
daf
=44.4%
Q
Y
DW
=7650KJ/Kg
甘蔗叶水分
≤30%
Sugar cane leaves m
oisture ≤
30%
二、
锅炉设计参数
Ⅱ
, Boiler Design Parameters
蒸发量
evaporation capacity
120
t/h
过热蒸汽出口压力
superheated steam outlet
pressure
3.8
Mpa
过热蒸汽温度
superheated steam
temperature
450
℃
给水温度
feed water
temperature
104
℃
冷空气温度
cold air temperature
30
℃
热空气温度
hot air temperature
208
℃
三、
锅炉主要设计依据
Ⅲ
, Main Basis for Boiler
Design
1
、
《蒸汽锅炉安全技术监察规程》
(1996)
；
1, “Steam Boiler Safety Technology
Supervisory
Regulations”
(1996);
2
、
TSG
G0002-2010
《锅炉节能技术监督管理规程》；
2, TSG G0002-
2010
“Supervision
Regulation on Saving
Energy Technology for
Boiler
”
;
3
、
GB/T9222-2008
《水管锅炉受压元件强度计算》
；
3, GB/T9222-
2008
“Strength calculation
of pressure parts
for water tube boilers”
;
4
、
JB/T6696-1993
《电站锅炉技术条件》
；
4,
JB/T6696-
1993 “Specification for Power
Station
Boiler”
5
、
DL/T5047-1995
《电力
建设施工及验收技术规范》
（锅炉机组篇）
；
< br>5, DL/T5047-1995
“The Code of
Erection and Acceptance
of
Electric Power Construction” (Section of Steam
Boiler Set)
;
6
、
GB/T12145-2008
《火力发电
机组及蒸汽动力设备水汽质量》。
6, GB/T12145-2008
“Quality Criterion of Water and Steam
for Generating Unit and Steam Power
Equipment”
;
四、
锅炉主要技术经济指标
Ⅳ
, Boiler Main
T
echnical and Economic Index
锅炉热效率
boiler heat efficiency
≥
82
%
排烟温度
exhaust gas temperature
140
℃
锅炉燃料消耗量
boiler fuel consumption
55175 kg/h
排烟处过量空气系数
excess air ratio of exhaust gas
1.4
安全稳定运行工况范围
Range of safe and stable operating
conditions
70
～
100
%
排污率
rate of blowdown
2
%
锅炉通风比
boiler
ventilation ratio
16
%
锅炉本体耗钢量
steel consumption of boiler
proper
220
tons
钢结构耗钢量
steel consumption of steel
frame
521
tons
炉排耗钢量
steel consumption of
grate
40
tons
2
总耗电功率
total power consumption
1915 Kw
受热面积热负荷
surface
heat release rate of grate
63.8 Kw/m
2
炉膛容积热负荷
volume heat release rate of
furnace
74.2 KW/m
3
五、
锅炉尺寸
Ⅴ
, Boiler Main
Dimensions
1.
炉膛宽
度
(
两侧水冷壁管中心线之间距离
)
1,
furnace width
(the
distance
between
the
centerlines of both side water wall
tubes)
7820mm
2.
炉膛深度
(
前后水冷壁管中心线之间距
离
)
Furnace
depth
(the
distance
between
the
centerlines of front and
rear water-wall tubes)
7000
毫米
3.
锅筒中心线标高
3, boiler
centerline elevation
36000mm
4.
锅炉宽度
(
左右两柱中心距
)
4,
boiler width (the distance between left and right
column
centers )
9560mm
5.
锅炉深度
(Z1
与
Z5
两柱中心距
)
5,
boiler
depth
(the
distance
between
Z1
and
Z5
column
centers)
17110
毫米
6.
锅炉最高点标高
6, boiler
highest point elevation
37200mm
7.
锅炉最大宽度
(
包括平台栏杆
)
7,
boiler
maximum
width
(including
platform
handrails)
16210
毫米
8.
锅炉最大深度
(
包括平台栏杆
)
8,
boiler maximum depth (including platform
handrails)
19540mm
六、
锅炉结构简述：
Ⅵ
, Brief
Description of Boiler Structure
1.
炉膛：
炉膛横截面呈长方形
7820×
7000
，炉膛四壁布满膜式水
冷壁，管子为
Φ60×
4
，材质为
20
（
GB3087-2008
）
，管子节距
100
毫米
。
1, Furnace:
the
furnace cross-section is a rectangle of
7820×
7000
, the
furnace walls all around
are covered
with membrane water walls, the tubes are
Φ60×4
steel tube, material
is 20 (GB3087-2008) ,
tube
pitches are 100mm.
前水冷壁由
78
根管子组成，上端错成两排进入锅筒，下端进入集箱与
6
根
Φ
108×
4.5
下降管构成一个回路，下降管与上升管内截面比为
0.28
。
Front water-wall
consists of
78
tubes, the
top ends are staggered into two rows, entering the
drum,
the bottom ends enter the header,
together with six
Φ108×4.5
downcomers, forming a loop, downcomer
and riser tube inner cross-section
ratio is
0.28
.
后水冷壁由
78
根管子组成，
上部在炉膛出口处拉稀成三排凝渣管，
节距
S1=3
00
，
S2=200
再进入锅筒，与<
/p>
6
根
Φ
108×
4.5
的下降管构成一个回路，下降管与上升管内截面
比为
0.28
。
Rear water-wall consists of
78
tubes, in the outlet of
furnace, the upper ends are made sparsely into
three
rows
of
slag
screens,
entering
the
drum,
pitches
S1
=
300, S2
=
200,
together
with
6
Φ108×4.5
downcomers, forming a loop, downcomer
and riser tube cross-section ratio is
0.28
.
前水冷壁下部呈
60°
倾角构成前拱。
Front water-wall lower part forms a
60°
dip angle,
constituting
the
front arch.
侧水冷壁每侧由
70
根管子组成，
上端进入集箱再由
8
根
Φ
108×
4.5
的引出管进入
锅筒，下端进入下集箱，与<
/p>
6
根
Φ
108×
4.5
下降管构成一个回路，下降管与上升管内截
面比为
0.31
。引出管与上升管内截面比为
0.414
。
3
Each side water-wall
consists of
70
tubes, the
upper ends enter the header, and lead to the drum
through
8
Φ1
08×
4.5
educing
pipes,
the
lower
ends
enter
lower
header,
together
with
6
Φ108×4.5
downcomers, forming a loop, downcomer
and riser tube inner cross-section ratio is 0.31.
Educing pipe and
riser tube inner
cross-section ratio is
0.414
.
集箱为
Φ2
73×
16
，材质为
20
（
GB308
7-2008
）
。
The headers are
Φ219×16
, their material is <
/p>
20
（
GB3087-2008
）
.
在炉膛四周设有人孔、测量孔及防爆门等，为了有利于着火和燃烧稳定，燃烧器
区域的水冷壁上敷设
128
㎡卫燃带。
Around the furnace walls, arranged
with manhole, measuring hole and explosion-proof
door etc.,
in order to facilitate
ignition and stable combustion, on the combustion
region of water-wall, laid with
128
㎡
refractory
belt.
2.
锅筒：
锅筒内径为
Φ1
600
毫
米，壁厚为
46
毫米，圆筒部分长
10
940
毫米，封
头壁厚
46
毫米，均由
Q245R
钢板制成。
2,
Drum:
The
inner
diameter
of
drum
is
Φ1600
mm, wall
thickness
is
46mm,
length
of
straight
section is
10940
mm, wall thickness of
the head is 46mm, all of them are made of Q245R
steel plate.
锅筒内装有给水、蒸汽分离、连续
排污、磷酸盐加药等装置，蒸汽一次分离采用
44
个
Φ290
旋风分离器，二次分离器采用
9
层
8
目
18#
镀锌钢丝网及一层多孔板组成的
顶部分离器，锅炉给水应符合
GB/T12145-2008
《火力发电机组及蒸汽动力设备水汽质
量》标准。
Drum inner is
equiped with feed water, steam separation,
continuous blowdown, phosphate dosing
etc.
devices.
The
primary
steam
separation
adopts
44
Φ290
cyclone
separators,
the
second
steam
separation adopts top separators made
of 9 layers 8 eyes 18 # galvanized steel wire mesh
and a layer of
porous plate, boiler
feed water should meet the standard of
GB/T12145-2008
“Quality
Criterion of Water
and Steam for
Generating Unit and Steam Power
Equipment”
.
此外，锅
筒上还有高低读水位表、压力表、安全阀等，锅筒正常水位在锅筒中心
线下
75
毫米处，最高最低水位分别在正常水位上下
75
毫米处，
锅筒由两个活动支座
支承在钢梁上，受热时锅筒向两端自由膨胀。锅筒内部装置要严格遵照图纸焊接，以保
证蒸汽品质。
Moreover,
the
drum
has
high-low water
level
indicators,
pressure
gauges,
safety
valve,
etc.,
the
drum normal water level is
75
mm lower than the drum
centerline, the highest and lowest water levels
are
separately 75mm upper and lower
than the normal water level, the drum is supported
on the steel beam by
two movable
bearings, when heated, the drum freely expand
towards both ends. The drum internals should
be welded strictly according to the
drawing, to ensure the quality of steam.
3.
燃烧器：
在炉膛前墙布六个蔗渣燃烧器。采用固定蒸汽吹灰炉排，炉排风占
70%
，炉后墙、送料风各占
15%
。
3, Burners:
In the front
wall of furnace, there are 6 bagasse burners.
Adopt fixed type
steam
soot
blowing
grate,
grate
air
accounts
for
70%,
the
air
of
rear
wall
of
furnace
and
material
feeding air acounts
for
15% separately.
4.
过热器及减温器：
过热器分两段，高温段在前，由
Φ
42×
3.5
的
12Cr1MoVG
管
子制成。低温段在后，由
Φ38×3.5
的
20
（
GB3087-20
08
）管子制成，总受热面积
884.5
㎡，过热器出口集箱上设有主汽阀、自用蒸汽阀、生火排汽、反冲洗、安全阀及热电偶
座、温度计、压力表等。
4
4,
Superheater and desuperheater:
superheater is divided into two
sections, the high-temperature
s
ection
is
in
the
front,
made
of
Φ42×3.5
12Cr1MoVG
tubes;
the
low
-temperature section
is
in
the
back,
made of Φ38×3.5
20
（
GB
3087-2008
）
tubes, the total
heating area is
884.5
㎡
,
superheater outlet header
is
equiped
with
mail
steam
valve,
self-comsumption
steam
valve,
fire
up
exhaust steam,
back washing,
safety valve and thermocouple seat,
thermometer, pressure gauge and so on.
减温系统采用中间喷水减温器，减温水为除盐水或者冷凝水，通过电动调节阀来
调节减温水量的多少，可达到调节过热蒸汽温度的目的。
Desuperheating
system
adopts
intermediate
spray type
desuperheater
,
desuperheating
water is demineralized
water or condensated water, using the electric
control valve to regulate the
amount of
desuperheating water
, so as to achieve
the purpose of adjusting superheated steam
temperature.
5.<
/p>
省煤器：
省煤器分为两级，均由
Φ32×
3
的
20
（<
/p>
GB3087-2008
）管子制成，省煤
器集箱共
4
只，均由
Φ219×16
的管子组成，材质
20
（
GB3087-2008
）
。上、下级省煤器
均采用支承结构，支承梁内部通风冷却，为防止省煤器的磨损，上、下级省煤器的蛇形
管都装有必要的防磨盖板，并且留有检查孔方便检查和清灰。
5, Economizer: E
conomizer is
divided into two stages, made of
Φ32×3.5
20
（
GB3087
-2008
）
tubes,
there
are
4
economizer
headers,
all
of
them
made
of
Φ219×16
tubes,
their
material
is
20
（
GB3087-2008
）
.
The
upper
and
lower
stages
of
economizers
all
adopt
supporting structure,
the
supporting beams are cooled by
ventilation, in order to prevent wear and tear,
the snake tubes of
upper
and
lower
economizers
are
equiped
with
the
necessary
anti-abrasion
cover
plates,
and
leaving
inspection hole
to
facilitate inspection and cleaning.
6.
空气预热器：
采用管式空气预热器，单级
布置，上三个管箱由
Φ5
0×
2
的钢管制
成立式管箱，最下个管箱由
Φ60×
3(
考登管
)
制成立式管箱，共有
4
组管箱，
4
个流
程，
每组管箱由
4
只管箱组成。烟气在
管内纵向冲刷，空气在管外横向冲刷，为了防止空气
预热器的振动和噪音，
在每个管箱中都装有二块防震钢板，
每个管箱和连通罩均留有检
查孔方便检查和清灰。
6, Air
preheater:
Adopt tubular air preheater,
single-stage
layout, the
upper
three tube
boxes are
vertical type,
made of
Φ50×2
steel
tubes,
the
lowest
tube box
is also
vertical
type,
made
of
Φ60×3
(
Cowden
tubes)
,
there
are
total
4
groups
of
tube
boxes,
four-
pass,
each
group consists of
4 tube boxes. Flue
gas
inside the tubes scours
longitudinally
, air outside
the
tubes
scours
transversely
,
in
order
to
prevent
vibration
and
noise
of
the
air
preheater,
each
tube box
is
equipped with two anti-vibration plates, and
each
tube box and
inter-connecting
cover has
inspection hole to facilitate inspection and ash
removal.
7.
钢架与炉墙
：
采用十二根钢柱的支承式钢架，前面六根钢柱固定在地基上，用
来支承炉膛受热面重量，后面六根钢柱固定在地基上，用来支承尾部受热面重量。混凝
土结构由设计院负责设计。炉膛炉墙采用轻型炉墙，炉墙厚度为
200
< br>毫米的保温层，水
平炉顶及斜炉顶采用耐火混凝土、
绝热
混凝土浇灌，
由吊架分别吊在水平顶板及斜顶板
上。
7,
Steel
frame
and furnace
wall:
Adopt supporting
type
steel
frame
of
twelve
steel
columns,
the
front six steel
columns are fixed to the foundation, used to
support the weight of furnace heating surface;
the rear six steel columns is fixed to
the foundation, used to support the weight of rear
heating surfaces. The
concrete
structure
should
be
designed
by
design
institute.
The
furnace
wall
adopts
light
furnace
wall,
5
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