Szs Series Gas(oil) Fired Hot Water Boiler - China

SZS series boiler is designed with longitudinal double drums and " D " type chamber structure.

The furnace is on the right and convection tube bank is on the left.

The body is fixed on the basement by middle and both end flexible supports and make the boiler expand horizontally sideways.

Around the furnace is membrane wall.

Furnace and tube bundle are totally separated by the membrane wall at the left side of the furnace.

The back part of convection tube bank is sparse shift structure, front part is aligned structure.

Smoke from furnace outlet enters re-burning chamber, convection tube bank area, and then from left front part enters spiral fin coil economizer and condenser, and finally is discharged to atmosphere through chimney.

Technical advantages

Digitized manufacture

Boiler body uses the forced circulation in the high temperature area to make sure all heating areas can be cooled down and avoid vaporization; The explosion door and flame detector are equipped for safe and reliable operation.

Comb plates are used between both sides of boiler and tube bundle to avoid leakage of condensate and gas caused by using refractory concrete as sealing material.

Air proof test is done before delivery in the factory to guarantee any gas leakage problem.

Environment-friendly Big combustion chamber equipped with Low emission combustion burner effectively reduce the NOx to 30mg/m3 - Smoke duct and smoke outlet use internal insulation to reduce operating noise.

Combustion chamber uses full membrane water cooling wall structure and pressurized combustion without smoke mixture.

Energy-saving Good quality alumina silicate fiber and fire clay insulation material are used and the boiler body temperature is controlled below 45℃ and greatly heat loss is reduced.

Combustion chamber is designed with narrow distance tube membrane water cooling wall which has good air proof to reduce heat lost and increase boiler thermal efficiency.

Internal inspection holes uses high-alumina refractory and manhole cover seal devices, solving superheat problem in this part caused by using refractory bricks.

Convenience Manholes are placed on the front and back side of drums and inspection doors on back side of boiler easy to open for inspection and clean inner and outer parts.

Longer working life

Membrane structure are used in the front and back wall for boiler body and highly increased their lifespan to over 20 years.

The key processes including material cutting, rolling, drilling are done by advanced CNC machining process to reduce the assembly stress and extend boiler service lifetime.

Flutter prevention fastener is used for high temperature part convection tubes, which avoid convection tube cracking problem.

Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality.

All longitudinal and girth joint will be tested by radiographic inspection.

Company Contact:

• Posted By: Zozen Boiler Co., Ltd

• Phone: 4001187088

• Address: No. 76, Xin Da Road, Zhou tie Town, Yixing, Wuxi, China, City , 江苏 , China

• Email:

• Business Description: Wuxi Zozen boiler limited company is the general administration of quality supervision, inspection and quarantine of the Peoples Republic of China approved the boiler and pressure vessel designated manufacturing enterprise, holding a-class boiler manufacturing license, BR Ⅱ class pressure vessel manufacturing license, American ASME standard “S” (power boiler), “U” (pressure vessel) licensing steel seal, and fully passed ISO9001: 2000 international quality system certification.
  
  In order to promote the core technology and product innovation, further enhance the core competitiveness, the company and xi ‘an jiaotong university, Shanghai jiaotong university, Beijing institute of colleges and universities and scientific research institutes such as the light of the boiler has established close relations of cooperation between colleges and construct a complete system of research and development.
  
  The company is located in the beautiful taihu lake, covering an area of 120, 000 square meters, with a registered capital of 127 million yuan, which is a AAA credit rating enterprise and a high-tech enterprise in jiangsu province.
  
  It has the capacity to produce 2000 sets of industrial boilers and 25, 000 tons of steam.