Media Center
HomeMedia CenterZBG News
ZBG News Social Media ZBG Video Special Topic

How to Inspect Industrial Boiler Economizer

2016-03-09 13:11:18

No matter large or small boilers, economizers are equipped to reduce heat losses, but the location of boilers are different. In general, for large  utility power plant boilers, the economizer is normally an integral part of the boiler; for smaller boilers, packaged heat recovery equipment is external.gas boiler economzier

Economizers are normally bent tube exchangers. The boiler feedwater flows through the tubes on its way to the boiler. The tube bank is assembled into a section of duct work which is located in the breeching between the flue gas vent connection on the boiler and the stack or chimney. The products of combustion leaving the boiler flow through this duct, over the tube bank, giving up its heat to the boiler feedwater.

Tips on making inspection of the economizer:power plant boiler economizer

Make sure all internal baffling, tube arrangements, headers, tube sheets, etc., are installed in accordance with manufacturer's recommendations.
Tubes and headers should be checked to make sure there is no plugging nor obstructions.
Check feed piping to the economizer inlet header and piping between the economizer and the boiler.
Check and inspect shutoff and check valves, isolating valves and relief valves, test connections, thermometers and pressure gauges.

Products Recommended
SZL Series Biomass Chain Grate Boiler
SZL Series Biomass Chain Grate Boiler 6-30 t/ 4.2-21 MW
Pressure: ≤1.6MPa
SZS Gas & Oil Water Tube Boiler
SZS Gas & Oil Water Tube Boiler 4-90t/2.8-63 MW
Pressure: ≤3.82MPa
DZL Packaged Biomass Steam Boiler
DZL Packaged Biomass Steam Boiler 2-10 t/1.4-7 MW
Pressure: ≤1.6MPa
WNS Oil & Gas Fire Tube Boiler
WNS Oil & Gas Fire Tube Boiler 1-20Ton/1.4-14MW
Pressure: ≤1.6MPa
Checking Order Quality Test Before Delivery Check Items When Packing Packaging And Transport
Get An Instant Quotation

For all inquiries, please fill in the form below (* are required) to send us a brief message, and we will get back to you as soon as possible.

* Email:
Boiler fuel:
  • Gas
  • Oil
  • Biomass
  • Coal
  • Waste Heat
  • Other
  • Textile Industry
  • Central Heating
  • Food Plant
  • Power Plant
  • Chemical Industry
  • Waste Heat Recovery
  • AAC Block Plant
  • Hotel & Resort
  • CHP
  • Other