Thermal Oil Heaters
Thermal Fluid Heaters THZ
can be applied in many different fields of high temperature heating e. g.
all forms of appliances, textile machines, autoclaves, vessels, machines or
The heat carrier is pumped in a forced
circulation - closed circuit - through
the heater, the heat
consumers and the connecting pipes. As a result of this system, a defined
heat exchange is
obtained on all points of the heating surface. The THZ is a tube
boiler which is suitable for
heating of all kinds of heat transfer fluids
on mineral or synthetic base.
The THZ is designed as a 3-pass boiler in vertical
or horizontal design. The heating surface
consists of two tube cylinders mounted in the gastight boiler casing.
The flue gas is carried in the 3rd pass.
The connection of the cylinders is effected by flow and return collectors. The
of the combustion chamber ensures perfect burning conditions and best results in waste gas.
As the parts of the vessel with contact to the flue gas are cooled down - only parts are insulated
with special creep-resistant insulation - fire resistant bricking is not necessary.
Operation at ca.
300°C is effected close to atmospheric pressure, at max. 400 °C with
operating pressure of ca. 12 bar.
Due to operation with common heat transfer fluids THZ are not
subject to any corrosion
caused by the heat carrier.
Each THZ is equipped with flow control
and safety device system controlling the
Thereby damage of the heat carrier and heater is impossible.
We can supply thermal fluid heaters THZ in horizontal
or vertical design:
- low costs for maintenance. Burner
and fittings can
be reached easily.
- low total height of construction.
The THZ in
horizontal design can be installed in rooms with
- permanent degassing of heat
transfer fluid. The gas bubbles are
drifting from the heated to the
colder parts of the tube - therefore an
excellent heat transfer is guaranteed.
The flow follows the buoyancy.
All types can be obtained in two
common temperature ranges dt 25°C
and dt 40°C.
THZ thermal fluid heaters
can be either fuelled
- directly by the use of light fuel
oil, natural gas or electrical resistance heating (E-THZ)
- indirectly by liquids, waste gas,
waste heat or steam.
Data/Types of THZ (in vertical or horizontal design)
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Delivery Standard, Module Design and Accessories
Depending on customer's demands we can deliver the
components of THZ in single pieces,
in module design
or mounted in standard containers.
Construction and Production
- THZ including all necessary fittings and
safety devices, mounted on a frame, including
low pressure circulation pump in compact design, switchboard, burner -
on customer's demand.
- Accessories such as drain tanks,
expansion tanks, fill and evacuation (drain) pumps,
relief vessel, fittings and mountings.
- Mounted in standard containers:
all necessary components of the plant can be
mounted and pre-wired in a container - ready
Calculation of construction, selection of materials and equipment
acc. TRD - German technical
regulations for pressure vessels or PED 97/23/EC.
Production and pressure test under supervision of TUEV - additional
calculations and acceptance of constructions by foreign supervision
organizations on request.