YQL series gas-fired thermal fluid heater

YQL series gas-fired thermal fluid heater

Thermal fluid heaters

  • Working pressure:0.8-1.0 MPA
  • Product thermal capacity:7000-29000 KW
  • Outlet temperature: 320 °C
  • Available fuel:natural gas, coke oven gas, bio-gas,liquefied petroleum gas, diesel, heavy oil, light oil, crude oil
  • Available industries:Petroleum, chemical, chemical fiber, pharmaceutical, textile printing and dyeing, building materials, wood processing, vegetable oil processing and other industries


YQL series gas-fired thermal oil boilers have a three-pass round coil structure. A conical coil is used for the effective protection of the furnace wall at the boiler end. This product is equipped with an advanced combustion device and is fully automated in operation. After the burner ignites the fuel, flame fills the round coil tubes and transfers heat by radiation through the tube wall (first pass). The high temperature flue gas gathers at the back door and then turns to the convection tubes section (second pass), where heat transfer takes place by convection. The flue gas gradually cools down here and flows to the front door, where it is reversed and goes into the third pass. After that, it enters into the chimney through the economizer and is released into the atmosphere.

Technical advantages

  1. The manufacture of serpentuator adopts serpentuator automatic production line, once-forming.
  2. The laying-off of steel tube adopts CNC 3D laser cutting machine.
  3. Square coil tube and coil tube all adopt argon arc welding technique,which guarantees tubes are 100% qualified.
  4. The optimized radiation heating surface and convective heating surface, the medium flow is more reasonable, without overheat of the carrier and reduce the life;
  5. We have combustion arch patent, which is available for different types of coals, even the anthracite is very easy to burn.
  6. Use superior refractory brick to build inside and superior perlite in the middle. Keep the furnace temperature under 50℃ to make the minimization of loss.

Product parameters

ModelRated thermal power(KW)Rated thermal power(x10 4kcal/h)Design working temperature(≤℃)Rated working pressure(MPa)Thermal efficiency(≥%)System installation power(KW)


WNS series steam boiler

gas fired boiler

DZL series hot water boiler

coal fired boiler

SZL series steam boiler

biomass fired boiler