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SZS Gas-fired steam boiler

SZS Gas-fired steam boiler

Application fields:heat suppling, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc.

  • Processing capacity:10-50 t/h
  • Working pressure:1.25-2.5Mpa

Processing materials: barite, calcite, coal, concrete, aggregate, gravel, basalt, cement, gypsum, limestone, granite, rock and so on.

SZS Gas-fired steam boiler Introduction

  SZS Series Boiler is double drums, longitudinal arranged, "D" type chamber structure. Furnace is on right side and convection tube bundle is on the left, super heater is arranged at convection tube bundle. The body is fixed on the basement by middle and both end flexible supports and make the boiler to expand horizontally to sideways. Around furnace is membrane water cooling tube wall. Furnace and tube bundle is totally separated by the membrane water tube cooling wall at the left side of the furnace. The back part of bundle is sparse shift structure, front part is aligned structure. Smoke from furnace outlet enters re-burning chamber, bundle area, and then from left front part enters spiral fin coil economizer and condenser, finally discharged to atmosphere through chimney.

Features of SZS Gas-fired steam boiler

Safety
Boiler body high temperature area adopt forced circulation to make sure each part heating area can be cooled down and avoid vaporization;
Boiler has explosion door and flame detector for safe and reliable operation.
comb plates are used as the sealing between both sides of boiler and tube bundle all use to avoid leakage of condensate and gas which is caused by refractory concrete sealing.
air tightness test is done before leaving the factory to ensure no leakage of gas.
environmental protection
Bigger combustion chamber and Low emission combustion engine to reduce the NOX to 30mg/Nm3
Smoke duct and smoke outlet has internal insulation to reduce operating noise.
Combustion chamber use full membrane water cooling wall structure, pressurized firing without smoke mixture.
energy conservation
Good quality alumina silicate fiber and fire clay insulation is used, boiler body temperature is controlled below 45℃, to reduce heat lost.
Combustion chamber use narrow distance tube membrane water cooling wall which has good air tightness, and reduce heat lost and increase boiler thermal efficiency.
Inside of Inspection holes use high-alumina refractory and man hole cover sealing devices, it solved the high temperature of this part by using refractory brick
 
Convenience
Thera are manholes on front and back side of both bundle and inspection doors on back side of boiler, which are easy to open for inspection and cleaning inner part.
 

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longer lifespan
Membrane structure of Front and back wall is used for boiler body, which highly increased their lifespan to over 20 years.
The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.
flutter prevention fastener is used for high temperature part convection tube, which avoid bundle tube cracking problem.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.
 

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Technical data

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Item
Model
SZS20-1.25-Q.Y
SZS20-1.6-Q.Y
SZS20-2.5-Q.Y
SZS25-1.25-Q.Y
SZS25-1.6-Q.Y
SZS25-2.5-Q.Y
SZS30-1.25-Q.Y
SZS30-1.6-Q.Y
SZS30-2.5-Q.Y
SZS35-1.25-Q.Y
SZS35-1.6-Q.Y
SZS35-2.5-Q.Y
SZS40-1.25-Q.Y
SZS40-1.6-Q.Y
SZS40-2.5-Q.Y
SZS50-1.25-Q.Y
SZS50-1.6-Q.Y
SZS50-2.5-Q.Y
Rated evaporation 20 25 30 35 40 50
Rated working pressure 1.25/1.6/2.5 1.25/1.6/2.5 1.25/1.6/2.5 1.25/1.6/2.5 1.25/1.6/2.5 1.25/1.6/2.5
Rated steam temperature 194/204/225 194/204/225 194/204/225 194/204/225 194/204/225 194/204/225
Feed water temperature 20 20 20 20 20 20
Available Fuel   Natural gas,biogas,coke gas,light oil methanol,biodiesel etc.
Fuel consumption Natural gas
(Nm³/h)
1440 1800 2160 2520 2880 3600
Light oil(kg/h) 1240 1550 1860 2170 2480 3100
Thermal efficiency(%) >98 >98 >98 >98 >98 >98

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CONTACT US

  • Tel:86-13506151153
  • Office Add:No.76 Xinda Rd.,Fenshui ,Zhoutie Town,Yixing City,Jiangsu Province,China
  • E-mail:[email protected]

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