The document discusses different types of steam injectors/steam lances for heating vessels from the outside. It describes a Type IFA steam lance that can be mounted from a vessel standpipe or flange without a person entering the vessel. It also details multi-stage steam injectors that can be pipeline mounted to increase performance while reducing size and costs. Finally, it introduces a modified IFM multi-stage steam lance that can increase steam throughput and allows targeted heat distribution in a vessel with multiple injection outlets.

4. Steam Injector / Steam Lance for Vessel-Mounting Type I FA
Mounting from the outside
For the heating of vessels by means of direct steam feed, since many years we have injectors in our program,
which insert steam directly into the vessel, below the water-level. In models oft he ILF/IFF/IGE-series it is
usually necessary that a person enters into the vessel by a man-hole to install the equipment within the tank.
For mounting the model IFA in a tank a free vessel
standpipe or block flange is sufficient. Its nominal size
must be one step larger concerning its dimension than the
appropriate type of injector. With injector size DN 80,
thus a connection DN 100 is necessary.
The steam connection flange can be dimensioned freely.
In addition we adapt the overall length individually to the
existing connecting piece length. Also these injectors
function after the Venturi Principle, whereby steam is led
also here by an annular gap and sucks in the liquid from
the vessel. The liquid will be accelerated and intensively
with steam mixed within the injectors conical outlet, so
that a fast and noiseless condensation of steam takes place.
Also we manufacture these injectors in stainless high-grade
steels.
Dimensions:
These Steam Lances are produced in variable lengths
because the diving depth in the vessels is always different.
The Injectors are manufactured in nominal sizes from DN
25 (1“) up to DN 250 (10“).
Because of the variety we can not represent all the
dimensions. Specific dimensions are available upon
request.
Picture: Steam lance in autoclave with agitator

5. Multi-Stage Steam-Injectors for pipeline mounting
To reduce the space requirements and material usage and costs, we
have developed 2 - and 3-stage variants, which allow us to increase
the performance of the steam injectors to 3-fold. Several internal
parts are installed in only one Case and are supplied through an
outer casing pipe with steam. All previously required flanges
between the steps become no longer necessary.
The outer dimensions have been reduced to a minimum and the
result is an extremely compact device, which can be installed and
connected with little effort.
The devices are available in all sizes offered to date, but also
customized designs are possible.
Dimensions:
2-staged Execution
DN 1 (ASME) 1“ 1½“ 2“ 2½“ 3“ 4“ 5“ 6“
DN 2 (ASME) 1“ 1“/1½“ 1“/1½“ 1½“/2“ 2“ 2“/ 2½“ 3“ 3“ / 4“
L [mm] 127 170 170 257,5 318 375 400 540
H [mm] 120 130 130 150 150 200 240 250
Steam throughput at
5 bar(g) [kg/h]
240 560 560 860 1400 2000 2940 4020/5040
3-staged Execution
DN 1 (ASME) 1“ 1½“ 2“ 2½“ 3“ 4“ 5“ 6“
DN 2 (ASME) 1“ 1½“ 1½“ 2“ 2“ 2½“/3“ 3“ 5“ / 6“
L [mm] 190 255 255 385 476 560 600 810
H [mm] 120 130 130 150 150 200 240 250
Steam throughput at
5 bar(g) [kg/h]
360 840 840 1290 2100 3000 4410 6030/7560

6. Steam-Injector / Steam-Lance Model IFM multi-staged
Multi-staged Heating of Tanks and Vessels
To increase the performance of our injectors and to be able to inject more steam in a shorter time in a vessel, we
have modified our models of the IFA- series. The units now have up to 5 additional injection nozzles in the
transverse direction and furthermore the exit in the longitudinal direction. Through this the steam throughput of
a steam lance of size DN 80 can be increased from 700 kg/h up to 2100 kg/h. If it was previously necessary to
install several injectors in the vessel, these now can be replaced by the use of a single device. The number of
corresponding vessel nozzles can be reduced as much.
Other individual configurations are possible, such as a T-shaped Steam-Lance with outlets in three different
directions, which is
connected to a flange at
the inside of the vessel.
Also circular formations
and individually shaped
lances are possible.
The outlet openings can
also be in opposite
directions, or are spirally
arranged, in order to
reach a targeted vessel
heat distribution.
Picture: T-shaped Steam-Lance DN 80 with 8 heating cartridges.
Due to the diversity of possible variants, we cannot represent all dimensions. Concrete proposals on the types
are available on request.

7. Picture.: Steam-Lance with 5 transverse heating stages in opposite direction and 1 in longitudinal direction
Picture.: Steam-Lance 3-staged without longitudinal stage
Picture.: Steam-Lance 3+1 staged