Gravity Heat Pipe Economizer Removal and Installation Project
Complete replacement work covering dismantling, lifting, positioning, installation and preparation for connection to the existing flue gas system.

Project Overview
Boyu Industry recently carried out a gravity heat pipe economizer removal and installation project for an industrial plant. The project included dismantling the original economizer, transporting and lifting the new unit, checking the installation dimensions, positioning the equipment and preparing it for connection to the existing flue gas system.
The working area was surrounded by existing structures, platforms, pipelines and production equipment. Limited lifting space and the large vertical dimensions of the economizer required careful planning, accurate crane positioning and close coordination between the lifting and installation teams.
Safe Removal and Precise Installation
Before construction, the project team inspected the site and confirmed the equipment weight, lifting points, center of gravity, crane location, lifting route and surrounding safety conditions. The original economizer and its connecting sections were then dismantled in accordance with the approved sequence.
After the old equipment was removed, the new gravity heat pipe economizer was lifted vertically and slowly moved into position. The installation team checked the elevation, vertical alignment, support points and interface locations before final fixation. Correct positioning provides a reliable basis for subsequent duct connection, expansion joint installation, insulation and commissioning.

How a Gravity Heat Pipe Economizer Works
A gravity heat pipe economizer recovers waste heat from high-temperature flue gas. The working fluid inside each heat pipe absorbs heat and evaporates in the hot section. The vapor moves to the lower-temperature section, releases heat and condenses. The condensed fluid then returns under gravity, allowing the heat transfer cycle to continue without an external circulation pump.
- High heat transfer efficiency
- Compact and modular structure
- Stable industrial operation
- Low operating and maintenance requirements
- Reduced risk of cross-contamination between media
Improving Industrial Energy Efficiency
The recovered heat can be used to preheat boiler feedwater, process water, combustion air or other industrial media. A properly designed economizer can reduce flue gas outlet temperature, improve overall thermal efficiency and decrease unnecessary fuel consumption. Actual performance depends on flue gas temperature, flow rate, dust loading, corrosion characteristics, medium parameters and available installation space.
Gravity Heat Pipe Economizer Services
Planning an Economizer Replacement Project?
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