SZS Boiler Overview

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1/Construction

The SZS is a typical D-type water tube boiler design, Bi-drum packaged gas & oil fired boiler. It is mainly composed by upper-drum (steam drum ) & lower-drum(water drum), membrane water cooling wall, convection bank, economizer, and condenser. Burner is arranged in the front wall, after fuel combustion in the furnace, flue gases flow through convection bank, economizer, condenser, and finally discharge into the chimney.

2/Features

D type water tube boiler D type water tube boiler 2

The boiler has a D-type, double drums and a longitudinal layout. Compact structure, the important components (like drums) are not directly affected by the high temperature flame radiation and erosion, to ensure safe and reliable operation of the boiler.

Boiler System Diagram

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Boiler System Diagram

Parameter

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Items ↓ Models → SZS6-1.25-Y.Q SZS10-1.25-Y.Q SZS15-1.25-Y.Q SZS20-1.25-Y.Q SZS25-1.25-Y.Q SZS30-1.25-Y.Q SZS35-1.25-Y.Q
Items ↓ Models → SZS6-1.25-Y.Q SZS10-1.25-Y.Q SZS15-1.25-Y.Q SZS20-1.25-Y.Q SZS25-1.25-Y.Q SZS30-1.25-Y.Q SZS35-1.25-Y.Q
Rated Capacity t/h 6 10 15 20 25 30 35
Rated Steam Pressure MPa 1.25 1.25 1.25 1.25 1.25 1.25 1.25
Rated Steam Temperature 194
Feedwater Temperature 104
Designed Thermal Efficiency % 93 93 94 94 94 94 92
Flue Gas Temperature 145
Combustion Way Chamber Combustion
Combustion Adjustment Way Electric Control Cabinet Automatic Adjustment
Fuel Consumption Light Diesel Oil kg/h 360 640 960 1300 1600 1950 2250
Natural Gas Nm³/h 450 750 1100 1450 1870 2200 1625
City Gas 910 1540 2260 2980 3705 4400 5135
Coke Oven Gas 840 1400 2100 2800 3500 4200 4900
Methanol kg/h 844 1410 2120 2815 3530 4240 4890
Max Shipping Weight t 26 37 44 55 58 60 64
Max Shipping Size mm 5980*3035*3320 7200*3280*3307 9000*3280*3307 9280*3600*3618 10850*3640*3930 10450*3890*4210 12370*4280*4210
Max Dimension After Installation mm 8320*5500*4260 8500*5865*4670 9500*5865*4670 12220*6850*4495 13620*6390*4820 13220*7230*4895 15140*7920*4765
Smoke Interface Dimension mm 800*490 1200*700 1000*1000 1400*1100 1400*1100 1400*1100 1700*1030
Interface Dimensions Feedwater mm DN50 DN50 DN50 DN80 DN80 DN80 DN80
Main Steam DN125 DN150 DN150 DN200 DN200 DN200 DN250
Periodic Blow Down DN25
Continuous Blowdown DN25 DN25 DN25 DN25 DN25 DN40 DN40
Safety Valves DN80+DN50 DN80+DN80 DN100+DN100 DN100+DN100 DN100+DN100 DN150+DN150 DN150+DN150
Feedwater Pump Electric Power kw 7.5 11 18.5 22 30 45 55
Draught Fan Electric Power kw Depends On The Burner
Note: 1. All of these values are calculated by the standard of LNG Qdw=8,400kcal/Nm³,CG Qdw=4,000kcal/Nm³, Coke Oven Gas Qdw=4,200kcal/Nm³, Light Diesel Oil Qdw=10,200kcal/kg, Methanol Qdw=4650Kcal/K.
Items ↓ Models → SZS6-1.25/
350-Y.Q
SZS10-1.25/
350-Y.Q
SSZS15-1.25/
350-Y.Q
SZS20-1.25/
350-Y.Q
SZS25-1.25/
350-Y.Q
SZS30-1.25-
Y.Q
SZS30-1.25/
350-Y.Q
Items ↓ Models → SZS6-1.25/
350-Y.Q
SZS10-1.25/
350-Y.Q
SSZS15-1.25/
350-Y.Q
SZS20-1.25/
350-Y.Q
SZS25-1.25/
350-Y.Q
SZS30-1.25-
Y.Q
SZS30-1.25/
350-Y.Q
Rated Capacity t/h 6 10 15 20 25 30 35
Rated Steam Pressure MPa 1.25 1.25 1.25 1.25 1.25 1.25 1.25
Rated Steam Temperature 350
Feedwater Temperature 104
Designed Thermal Efficiency % 93 93 94 94 94 94 94
Flue Gas Temperature 145
Combustion Way Chamber Combustion
Combustion Adjustment Way Electric Control Cabinet Automatic Adjustment
Fuel Consumption Light Diesel Oil kg/h 396 715 1080 1490 1890 2250 2610
Natural Gas Nm³/h 515 827 1240 1714 2142 2571 3002
City Gas 1006 1703 2498 3294 4093 4886 5656
Coke Oven Gas 924 1540 2310 3080 3850 4620 5418
Methanol kg/h 934 1563 2345 3105 3899 4961 5403
Max Shipping Weight t 27 29 46 26 60 64 64
Max Shipping Size mm 5980*3035*3320 7200*3280*3307 9000*3280*3307 9280*3600*3618 10850*3640*3930 10450*3890*4210 12370*4280*4210
Max Dimension After Installation mm 8320*5500*4260 8500*5865*4670 9500*5865*4670 12220*6850*4495 13620*6390*4820 13220*7230*4895 15140*7920*4765
Smoke Interface Dimension mm 800*490 1200*700 1000*1000 1400*1100 1400*1100 1400*1100 1700*1030
Interface Dimensions Feedwater mm DN50 DN50 DN50 DN80 DN80 DN80 DN80
Main Steam DN125 DN150 DN150 DN200 DN200 DN200 DN250
Periodic Blow Down DN25
Continuous Blowdown DN25 DN25 DN25 DN25 DN25 DN40 DN40
Safety Valves DN80+DN50 DN80+DN80 DN100+DN100 DN100+DN100 DN100+DN100 DN150+DN150 DN150+DN150
Feedwater Pump Electric Power kw 7.5 11 18.5 22 30 45 55
Draught Fan Electric Power kw Depends On The Burner
Note: 1. All of these values are calculated by the standard of LNG Qdw=8,400kcal/Nm³,CG Qdw=4,000kcal/Nm³, Coke Oven Gas Qdw=4,200kcal/Nm³, Light Diesel Oil Qdw=10,200kcal/kg, Methanol Qdw=4650Kcal/K.
Items ↓ Models → SZS17.5-1.6/130/70-Y、Q SZS58-1.6/130/70-Y、Q
Items ↓ Models → SZS17.5-1.6/130/70-Y、Q SZS58-1.6/130/70-Y、Q
Rated Thermal Power mw 17.5 58
Rated Outlet Water Pressure MPa 1.6 1.6
Rated Outlet Water Temperature 130 130
Rated Inlet Water Temperature 70 70
Desighed Thermal Efficiency % 94 94
Flue Gas Temperature 110 120
Combustion Way Chamber Combustion Chamber Combustion
Combustion Adjustment Way Electric Control Cabinet Automatic Adjustment
Fuel Consumption Light Diesel Oil kg/h 1600 4850
Natural Gas Nm³/h 1950 5680
City Gas 3710 13500
Coke Oven Gas 3508 12500
Methanol kg/h 3539 11290
Max Shipping Weight t 53 Field Assembled
Max Shipping Size mm 10850*3640*3930 Field Assembled
Max Dimension After Installation mm 14100*8050*4400 Field Assembled
Smoke Interface Dimension mm 1400*1100 2560*806
Interface Dimensions Feedwater mm DN300 DN400
Main Steam DN300 DN400
Continuous Blowdown DN20 DN50
Safety Valves DN100 DN200+DN200
Draught Fan Electric Power kw Depends On The Burner Depends On The Burner
Note: 1. All of these values are calculated by the standard of LNG Qdw=8,400kcal/Nm³,CG Qdw=4,000kcal/Nm³, Coke Oven Gas Qdw=4,200kcal/Nm³, Light Diesel Oil Qdw=10,200kcal/kg, Methanol Qdw=4650Kcal/K.

Relative Case

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CASE 110 ton water tube gas fired boiler

Project: SZS10-1.25-Y.Q 10 ton gas fired steam boiler
Application area: metallurgical plant
Project site: Gongyi, Henan

Client Comment: The gas fired boiler operates well, and consumes less fuel than we expected, it has saved us large running cost.

CASE 214 MW Gas Oil Hot Water Boiler

Project: WNS14-1.0/95/70-Q gas hot water boiler
Application area: heating supply
Project site: Beijing, China

Client comment: we asked ZG Group designed this boiler for our paper plant to burn the coal gas which has low heat value.

CASE 317.5MW gas fired hot water boiler

Project: SZS17.5-1.0/95/70-Q gas fired boiler for heating supply
Application: heating supply
Project site: Jianghan Oilfield, Hubei

Client comment: After comparing the boiler companies we have visited, we decide to purchase the hot water boiler from ZG Group.

Other Types of Water Tube Boilers

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Why Choose Water Tube Boiler From ZG Group?

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A/ 70-year History

Established in 1945, the 70-year-old ZG Group has rich experience in boiler designing, manufacturing, marketing, installation, and maintenance.

B/ State-of-the-art equipment
State-of-the-art equipment 1

1600mm panel bending machine

State-of-the-art equipment 2

120mm CNC bending machine

 State-of-the-art equipment3

Fully automatic coiler generating line

State-of-the-art equipment 4

20x5x5.5 CNC annealing furnace

State-of-the-art equipment 5

Membrane water cooling wall production line

C/Advanced Technology Strength
  • Advanced Technology Strength 1
  • Advanced Technology Strength 2
  • Advanced Technology Strength 3
  • Advanced Technology Strength 4
  • Advanced Technology Strength 5

Adhering to technology innovation as the driving force and independent intellectual property rights as the core, ZG Group has built professional R & D team, introducing international advanced technology from America, Germany and other countries, establishing long-term cooperation with Chinese Academy.

D/24*7 customer service online
customer service online
customer service online 2

ZG Group is always ready to provide you with online product consultation, customer-designed solution, and technical support.


E/ Installation & Parts

Field installation guide and training will be provided by experienced engineers; they guide boiler installation, solve the problems occurred during the process as well, to ensure the installation process. Adequate consumable parts are freely provided, in case of their wear-and-abrasion affecting product’s efficient running.

Installation & Parts 1 Installation & Parts 2 Installation & Parts 3

How To Contact us?

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Contact Us

Feel free to Contact Us via Online Customer Service, Telephone, E-mail, to get whatever you want.

1、Online Customer Service Live Chat

2、Email: zbgboiler@zzboiler.com

3、Skype: zgboiler

4、Telephone: 0086-371-86062323

5、Factory Address: NO.88 Science Road, High and New Technology

Development District, Zhengzhou, China

Inquiry Us

The form below with * are required, please fill in your detailed requirements,for example: Evaporation capacity, Outlet steam pressure, Outlet steam temperature, etc..

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