DEVICE FOR COOLING THE VERTICAL WALLS
OF A POWER ENGINEERING UNIT
S. Ya. Davydov,
I. D. Kashcheev,
A. E. Zamurayev,
and S. N. Sychev
Translated from Novye Ogneupory, No. 12, pp. 20 – 22, December 2010.
Original article submitted September 18, 2010.
Construction and operation is described for a water cooling device for the hot walls of a heating unit. Calcula
tion of the technical parameters of the proposed device are presented.
Keywords: heating unit, hot wall cooling, thermal power engineering unit, water jacket.
It is well known that liquid film cooling, which is com-
plicated in assembly and unreliable in operation, does not
provide uniform irrigation of a working surface of power en-
gineering equipment. With the aim of increasing the reliabil-
ity of cooling and reducing the consumption of cooling agent
for joint enterprise Angrenénergotsvetmet a device has been
developed  for water cooling the walls of a furnace with a
side surface of 64.66 m
. The width of the slot between walls
of the unit and the water jacket filled with cooling water is to
100 mm. With a water height of 1 m the water flow rate tak-
ing account of evaporation time is 20 – 10 m/sec.
The device (Fig. 1) for cooling vertical surfaces of ther
mal power engineering units contains open vessels 1 for
cooling liquid circulation. These vessels consist of a receiv
ing, overflow and pouring chambers 2, 3, and 4 arranged one
over the other over the perimeter of the working surface.
Each of these chambers is fitted with an overflow pipe 5,
which is installed with displacement relative to each other.
The joint of the bottom 6 of vessel 1 with the working sur
face is arranged lower than the level of the upper overflow
pipe 5 of the lower vessel 3. A plunger 8 passes through the
pouring opening 7, by which it is possible to control the fas
tening height for the regulating and support elements 9 and
10. The maximum diameter of the control element 9 is less
than the diameter of the pouring opening 7. There is a float
11 in receiving vessel 2 at the upper end of the plunger. Wa
ter is supplied through connectors 12 and 13 of collector 14.
Treated water is collected in the trough 15. The device oper
ates as follows.
Water is fed through branch pipe 12 of supply collector
14 through overflow pipe 5 to the upper overflow chamber 3.
After alternate filling of the all of the overflow chambers 3,
pouring vessel 4 and water appearing in trough 15 shuts off
branch pipe 12 and opens branch pipe 13. Receiving vessel 2
is filled up to the lifting of float 11, which closes the cut-off
components 10. The required amount of water poured pour-
ing opening 7 depending on water temperature in the collect-
ing trough 15 is established by control components 9.
Making the level of the joint of the bottom of vessel 1
with the working surface lower than that of the upper over
flow branch pipe 5 of the underlying chamber provides reli
able covering of the whole working surface of the thermal
power engineering unit with water. Pouring openings 7 ex
clude settling of slurry and improve water circulation, which
increase cooling reliability. Plunger 8 with control compo
nents 9 makes it possible to regulate water flow rate simulta
neously in chambers 2 – 4.
An increase in water inflow leads to a reduction of its
level in receiving chamber 2. The float 11 with plunger 8 is
raised. Control components 9 reduce the cross section of the
pouring aperture 7 maintaining the water level in chambers
2 – 4 constant. This makes it possible to reduce water flow
rate, providing reliable cooling of the unit working surface.
With accidental discontinuance of water into collector 14 the
level of water in receiving vessel 2 descends lower than the
level for operation of float 11 and closing components 10
cover pouring openings 7, which prevents water pouring
from the chambers and increases the operating reliability of
the whole device.
Use of unclosed chambers makes it possible to control
progress of the cooling water visually, prevents explosions
Refractories and Industrial Ceramics Vol. 51, No. 6, March, 2011
1083-4877/11/5106-0427 © 2011 Springer Science+Business Media, Inc.
FGAOUVPO B. N. El’tsin Ural Federal University, Ekaterinburg,