t4 thumb
yql gas-fired01 thumb
yql gas-fired02 thumb
yql gas-fired03 thumb

YQL series gas-fired thermal fluid heater

 Product thermal capacity:  7000-29000 KW
 Working pressure:  0.8-1.0 MPA
 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
Digitized manufacture

(1) The laying-off of steel tube adopts CNC 3D laser cutting machine.

(2) The manufacture of square coil tube adopts CNC three-dimensional tube bending machine, no forced shaping.

(3) The manufacture of serpentuator adopts serpentuator automatic production line, once-forming.

full argon arc welding

Square coil tube and coil tube all adopt argon arc welding technique,which guarantees tubes are 100% qualified.

Long life span

(1) The optimized radiation heating surface and convective heating surface, the medium flow is more reasonable, without overheat of the carrier and reduce the life;

(2) Convection section: optimize convection heating surface and adopt effective fix and structural support to make its working life longer.

(3) Set up effective flue gas partition for convection heating surface and cast partition to make it works longer.

Easy operation

(1) We have combustion arch patent, which is available for different types of coals, even the anthracite is very easy to burn.

(2) Flame-proof feeding bucket can avoid the feeding bucket is burnt and coking.

(3) There is ash cleaning unit, which is easy for maintaining, operating and cleaning.

Less fuel consumption

(1) 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.

(2) Furnace adopts double close line coil, which makes heating surface sufficient.

Product parameters

YQL series gas-fired thermal fluid heater

Model Rated thermal power(KW) Rated thermal power(x10 4kcal/h) Design working temperature(≤℃) Rated working pressure(MPa) Thermal efficiency(≥%) System installation power(KW)
YQL-7000Q 7000 600 320 0.8 90 140
YQL-8200Q 8200 700 320 0.8 90 140
YQL-9400Q 9400 800 320 1 90 200
YQL-10500Q 10500 900 320 1 90 200
YQL-12000Q 12000 1000 320 1 90 240
YQL-14000Q 14000 1200 320 1 90 320
YQL-16500Q 16500 1400 320 1 90 380
YQL-18000Q 18000 1600 320 1 90 450
YQL-21000Q 21000 1800 320 1 90 520
YQL-23300Q 23300 2000 320 1 90 600
YQL-26000Q 26000 2200 320 1 90 700
YQL-29200Q 29200 2500 320 1 90 825



If you have any questions, please contact us. We’ll do our best to help.

Related Products