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YQL series gas-fired vertical thermal fluid heater
  • YQL series gas-fired vertical thermal fluid heater
YQL series gas-fired vertical thermal fluid heater

  Product thermal power: 7000-29000KW

  Working pressure: 0.8-1.0MPA

  Output temperature: 320°C

  Available fuel: natural gas, coke oven gas, bio-gas

  Available industries: Petroleum, chemical, chemical fiber, pharmaceutical, textile printing and dyeing, building materials, wood processing, vegetable oil processing and other industries.

  • Product Details

  YQL series gas and oil-fired thermal fluid heater adopts 3-trips round coil tube structure. The coil tube end adopts beam port to effectively protect the furnace all at boiler end, is equipped with advanced combustion device, and with fully automatic operation. After furl ignition from burner, it forms a flame full fill into the round furnace tube, and through the furnace tube wall, the heat is transferred by radiation, which is the first pass. The high temperature flue gas after combustion gathers at rear furnace door and then turns into the second trip, which is convection tube area. After convection heat exchange, the flue gas temperature is going lower and comes to front furnace door, and from here it turns into the third trip ether into the tube bundle area, then through economizer its emitted into atmosphere through chimney.

  This type of heater is delivered in one whole body, and after erection at site, it only needs to connect thermal gas(oil) piping and electricity to start operation. The heater has 4 heating areas: furnace radiation heating area, the first convection tube heating area, the second convection tube heating area and economizer (waste heat boiler)

  Outstanding advantages:

  Digitized manufacture

  • The laying-off of steel tube adopts CNC 3D laser cutting machine
  • The manufacture of square coil pipe in pipe bender to pre-bend and then butt joint. No forced shaping.
  • full argon arc welding
  • Square coil pipe and coil pipe all adopt argon arc welding technique and the weld line will be done 100% radiographic inspection.

  Easy operation:

  Heater is wholly assembled and delivery, it is easy for installation, commission and operating.

  Fully automatic operating, burning, high slot oil level, output temperature and flow rate are adjusted automatically and self-protected.

  Less fuel consumption

  External side adopts good insulation material, outside use stainless steel plate, which can mostly reduce heat lost, make working environment better.

  Multilayers solid matter tube bundle and steel rod is used to seal and fix completely eradicate flue gas short circuit.

  Before delivery, the residue moisture is removed completely, so the system draining period is reduced to 2 days from 12 days

  Safely operation

  The inner coil pipe has bigger flow amount, so it is more stable under high temperature operation.

  Conical coil, effectively protects the furnace wall at the end of heater and burner on top.


Y-14000Q YQL-16500Q YQL-18000Q YQL-21000Q YQL-23300Q YQL-26000Q YQL-29200Q
Rated heating load(KW)
kW 14000 16500 18000 21000 23300 26000 29200
x104kcal/h 1200 1400 1600 1800 2000 2200 2500
Desigen working temperature(≤℃)
320 320 320 320 320 320 320
Rated working pressure(MPa)
1.0 1.0 1.0 1.0 1.0 1.0 1.0
Heat efficiency(≥%)
80 80 80 81 81 81 81
System installed
320 380 450 520 600 700 825
Expansion slot
20 30 30 30 30 30 30
oil cistern
30 40 40 60 80 80 80
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