Heat engineering. About boilers
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copolymer
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Presented to your attention
the boiler is improved
model of vertical boilers. Os-
seems like a new difference
changing the shape of the collectors
(top and bottom) with round
to square. A kind of top
the collector took on the form of a straight
parallelepiped.
giving this form is not accidental,
collector with such characteristics
kami provides:
1) Possibility of pipe flaring
in collectors, because they are mutual
perpendicular.
2) ease of manufacture, small
labor intensity, simplicity of design
tions, the possibility of installation in any
conditions => cheap.
3) Increasing the heating area per
square account
screens => along with other boilers
similar type (MZK) acquired
The design is compact.
4) Stability of operation at any
change in the water level in the boiler, i.e.
k. square section of the collector
does not change unlike the circle
steam collectors, traditionally
adopted due to the ease of collapse
pipe end forgings.
The design is based on two
mutually parallel collector
(upper and lower) with hole-
eat in the middle, as shown in
drawing. The hole may be
mother any shape depending
from the burner. Between two collectors
frame there is a screen and convection
tive beam consisting of 2mutually parallel rows of pipes.
The screen is also a partition
between the firebox and the gas ducts of the village
by means of steel plates,
boiled between pipes. To ensure
for stable passage of gases
three partitions without installing
are. The convective beam should
be installed similarly to the radio
alny (either round or
by square layout (Better
square, large production
activity)). Convection pipes
of the beam are located in checkerboard
matt order. Fundamental
The boiler diagram is shown in the figure:
View straight ahead.
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! ! ! ! !
!_!_!_!_!
! : : !
! : : !
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!__:___:__!
Top view
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! ! ! !
! !____! !
!__________!
Gas-air path.
peeper
!!===== =!!
!!::__::/!!
!!:! !: -> Gases coming out
!!:!___!:!!
!!:::::::!!
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Fan
As mentioned above, the firebox
located in the center of the boiler. Ras-
look at the smoke movement diagram
gases From the furnace gases enter
flues. When going beyond
fireboxes are in their waymeets ne-
partition, thereby directing them
through the entire convective surface
ness, and then they (cooled down)
will go outside the boiler. Like
MZK-7AG boilers have a double
partition, space between
two walls of the partition serve
lives in the air path of the boiler.
The air is supplied by a fan. B
differences from MZK boilers, where the ven-
the tilator is located on the axis with the air-
burner duct, in lining
a partition is installed,
this air before you approach
to the burner, makes its way to the wok-
around the boiler and thus occurs
even stronger heating. Od-
however, it is not prohibited to use
and diagram of the boiler air path
MZK. Air is supplied by ventilation
rum There is no individual smoke exhauster
has.
Feed water is supplied indi-
visible pump in the upper
collector (he is also
steam collector).
The circulation in the boiler is
is a fairly simple con-
tour The descending link is the me-
its heated part is convection
tive beam, i.e. part, ras-
placed at the end of the flue.
The lifting link is the ek-
wound and more heated part
convection pipes.
Availability of automation in the boiler -
necessarily.
The following non-
wealth:
1) Difficulty in installing the hole
under the burner.
2) Possible instability in
work received with too much
short flaring distance
pipes in collectors.
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