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Проветривание выработок большого сечения с помощью вентиляторных установок работающих без перемычки.

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B. Kazakov, A. Shalimov, A. Kiriykov
Modeling transient processes of nonsteady air-distribution in mine by emergency
regimes
The algorithm of a method of planimetric charges with reference to calculations
non-stationary distribution of air streams is analyzed. It is shown, that the given method
can be used without changes in poorly-stationary approach, but should be corrected for
calculations of fast transients for the account inertness of air. On the basis of results of the
lead numerical experiments it is established, that the method of planimetric charges in the
stationary form is unsuitable for modeling movement of air in the emergencies connected with
fires, stop or reverser the fan of the main airing, and also in modes of automatic control
distribution of air streams a control system.
Key words: nonsteady, transient processes, aerodynamic resistances, air-distribution,
inertance, heat pressure difference, reversal, regulation, management.
22.09.10
622.445
.
,
.
,
.
., 216-73-86, aero_kaz@mi-perm.ru
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,
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.
,
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.
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.
., 8912-48-58-977,
shalimovav@mail.ru (
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vx ( x ) vx ( x )
H
P(x) (1) vy(x) (2)
d( P( x ))
dx
.
vx(x):
2
dvx ( x ) d vx ( x )
dx
dx 2
16 ( x )
vx ( x ) .
H4
(x)
[2]
(3)
:
(x)
0 ,013
Hvx ( x ) .
2
(4)
(3)
dvx ( x )
dx
(v0=vx(x=0) –
vx ( x ) v0e
w( x )
)
q( x ) q0e
.
q0=q(x=0) –
,
0 ,47 x / H
,
0 ,47 x / H
(5)
x
2H,
Q0
l l0
2H
H
q
ln 0 .
0,47 Q0
92
(6)
H=10
3
q0=1500
(
-12 ).
Q0=500
l+l0
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Q0=150
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(6)
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2.
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3.
(
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.:
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12. 2009. . 56-58.
4.
«
»,
2006612154 (
).
B. Kazakov, A. Shalimov, L. Levin
Ventilating large cross-section tunnels with using ventilator working without a brattice
96
.,
.
//
.
-
-
Analytical and numerical modeling airing of mining developments of the large
cross-section by means of additional sources of draft is discussed. On the basis of the analysis
of results of modeling conditions of their effective utilization are investigated. Possible scripts
of movement of air in the closed and open single developments, and also in groups the
parallel developments which have been brought down among them are calculated. These are
certain necessary for transportation of air of distance between ventilating installations.
Key words: ejection effect, recirculation, dissipation, turbulent viscosity,
aerodynamic resistances, air-distribution.
22.09.10
622.61:622.33
.
,
.
,
.,
.
,
, (4872) 33-22-70, ecology@tsu.tula.ru (
,
,
),
.
,
, (4872) 33-22-70, ecology@tsu.tula.ru
,
,
),
.
,
, (4872) 33-22-70, ecology@tsu.tula.ru
,
,
)
,
,
,
-
.
.
-
.
:
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97
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установок, без, сечение, вентиляторным, помощь, работающих, большого, проветривания, перемычки, выработок
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