CN109281698A - Mensuration of Mine Ventilation Resistance data processing method based on relative pressure - Google Patents
Mensuration of Mine Ventilation Resistance data processing method based on relative pressure Download PDFInfo
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- CN109281698A CN109281698A CN201811145816.8A CN201811145816A CN109281698A CN 109281698 A CN109281698 A CN 109281698A CN 201811145816 A CN201811145816 A CN 201811145816A CN 109281698 A CN109281698 A CN 109281698A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 85
- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000004088 simulation Methods 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002715 modification method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
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- Mining & Mineral Resources (AREA)
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- Geochemistry & Mineralogy (AREA)
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Abstract
The mensuration of Mine Ventilation Resistance data processing method based on relative pressure that the present invention relates to a kind of includes the following steps: the well head for choosing mine as relative pressure zero point；Calculate the relative pressure of other all measuring points；The measuring point relative pressure corrected mistake；Calculate the windage of ventilation network branch；Correct the windage of ventilation network branch.Often there is the case where roadway resistance force value is negative in the mensuration of Mine Ventilation Resistance data processing method based on relative pressure when can be avoided barometer base point method data processing in current mensuration of Mine Ventilation Resistance, the data processing of the method progress barometer base point method, it is simple and feasible, it is especially suitable for the quick amendment of full mensuration of Mine Ventilation Resistance data.
Description
Technical field:
The present invention relates to a kind of original data processing methods of coalmine ventilation measure of resistance, more particularly to one kind is to using gas
Pressure meter base point method carries out the method that initial data acquired in mensuration of Mine Ventilation Resistance is handled.
Background technique:
Mensuration of Mine Ventilation Resistance is one of the important content of aeration technology management work, is to obtain mine ventilation basis ginseng
Several the only resources." safety regulations in coal mine " (2016 editions) the 156th article of regulation: 1 mine must be carried out before bringing in a well
Well ventilation optimization at least measures 1 time for every 3 years later.Production mine is transferred to new height production, changes a wing or full mine
After ventilating system, it is necessary to re-start mensuration of Mine Ventilation Resistance.By measure of resistance, not only available a large amount of mine is logical
Wind primitive technology data, for economically optimization mine ventilation system and formulate mining ventilation and safety technical measures provide according to
According to, and necessary basic data can be provided for the distinguished and admirable control of mine catastrophe period, adjustment and rescue and relief work and supported.
Barometer base point method is one of the common method for carrying out mensuration of Mine Ventilation Resistance, and the method has measure workload
Advantage relatively small, finding speed is fast, but the precision of the initial data obtained is relatively low, method is calculating tunnel at present
When the resistance of branch, often there is the appearance of the case where negative.It is artificially repaired to the determination data that these roadway resistance forces are negative
Timing is often carried out by the experience of data processing personnel, lacks accuracy；And after correcting the Resistance Value in certain tunnel,
It is also to compare to be difficult to the problem of handling that how coupled roadway resistance force value, which is corrected,.
Summary of the invention:
The purpose of the present invention is in view of the drawbacks of the prior art, propose a kind of mine resistance survey based on relative pressure
Determine data processing method, this method can reduce the initial data of barometer base point method progress mensuration of Mine Ventilation Resistance acquisition
Processing difficulty has significant advantage when being especially modified to the roadway resistance force value that calculated result is negative.
To achieve the above object, the mensuration of Mine Ventilation Resistance data processing method of the invention based on relative pressure, packet
Include following steps:
Step 1: some personnel for choosing mine enter the well head of well as relative pressure zero point, if mine uses pull-out type
Method of ventilation is then chosen into mine air inlet as relative pressure zero point, if mine chooses mine using forced ventilation method
Well air outlet is as relative pressure zero point.
Step 2: calculating the relative pressure of other all measuring points, calculation formula are as follows:
In formula: i is measuring point serial number, is manually ranked up, need to guarantee uniqueness；pI phaseIt is i measuring point relative to relative pressure zero
The relative pressure of point, the relative pressure of abbreviation i measuring point, unit Pa；K', k " are respectively the correction coefficient of barometer I, II；p″i、
p″0Respectively barometer II is in i measuring point, the reading of relative pressure zero point, unit Pa；p′i、p′0Respectively with p "i、p″0When to correspondence
Between barometer I reading, unit Pa；ρi0The average value of atmospheric density between i measuring point and relative pressure zero point, units/kg/m3；
zi、z0The respectively absolute altitude of i measuring point and relative pressure zero point, unit m；ρi、ρ0The respectively sky of i measuring point and relative pressure zero point
Air tightness, units/kg/m3；vi、v0The respectively wind speed of i measuring point and relative pressure zero point, unit m/s.
Step 3: correcting the relative pressure of measuring point, method particularly includes:
The relative pressure of all measuring points is ranked up according to mine air direction, correct measuring point relative pressure should meet
Following principle: if mine uses exhaust ventilation method, since relative pressure zero point, until mine main fan wind cave, opposite to press
Power should be sequentially reduced；If mine uses forced ventilation method, since relative pressure zero point, until mine main fan wind cave, phase
Pressure should be sequentially increased.If there is the relative pressure of measuring point not meet mentioned above principle, should be modified.Modification method is foundation
The difference of the relative pressure of measuring point before and after the measuring point, further according to the physical parameter in the tunnel between measuring point before and after the measuring point and the measuring point
(including length, basal area, perimeter etc.) and air quantity substantially estimate the resistance of the cross ventilation network branches where the measuring point, so
It sums or does according to the relative pressure of the estimation Resistance Value with corresponding another measuring point of an above-mentioned wherein ventilation network branch afterwards
Difference calculates the amendment relative pressure of the measuring point.Method according to this corrects all measuring point relative pressures for not meeting mentioned above principle.
Step 4: the windage of ventilation network branch, calculation formula are calculated are as follows:
In formula: R is the windage of ventilation network branch, unit Ns2/m8；H is the resistance of ventilation network branch, and value is ventilation
The difference of the distinguished and admirable relative pressure for flowing into measuring point and distinguished and admirable outflow measuring point of network branches, unit Pa；Q is the wind of ventilation network branch
Amount, unit m3/s。
Step 5: the windage of amendment ventilation network branch, method particularly includes:
Ventilation network branch resistance value is standardized, is calculated after the natural ventilation pressure of full mine, these are joined
Number is input to mine ventilation simulation software as corresponding ventilation network fork attribute together with the characteristic working curve of mine main fan
In the ventilation network map of drafting, carries out mine ventilation network simulation and resolve, the simulation of all ventilation network branches can be calculated
Air quantity.The actual air volume that above-mentioned calculated simulation air quantity is corresponded to ventilation network branch with during measure of resistance compares,
If error within 5%, illustrates that the ventilation network branch resistance of above-mentioned acquisition meets actual condition of mines；If error 5% with
On, then need the windage to corresponding ventilation network branch to be modified, until all tunnels air quantity to ratio error reach 5% with
It is interior.
After adopting the above technical scheme, the present invention have the effect of it is following positive: should mine ventilation based on relative pressure
Measure of resistance data processing method can be avoided frequent when barometer base point method data processing in current mensuration of Mine Ventilation Resistance
There is the case where roadway resistance force value is negative, the method carries out the data processing of barometer base point method, and it is simple and feasible, it is especially suitable
Close the quick amendment of full mensuration of Mine Ventilation Resistance data.
Detailed description of the invention:
Fig. 1 is the flow chart of the mensuration of Mine Ventilation Resistance data processing method of the invention based on relative pressure；
Fig. 2 is mine ventilation network schematic diagram of the invention.
Specific embodiment:
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be understood by those skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figure 1, the mensuration of Mine Ventilation Resistance data processing method provided by the invention based on relative pressure, including
Following steps:
S1: relative pressure zero point is chosen.As shown in Fig. 2, choosing the work of measuring point 1 if mine uses exhaust ventilation method
For relative pressure zero point；If mine uses forced ventilation method, chooses measuring point 6 and be used as relative pressure zero point.Below with mine
Well is illustrated for using exhaust ventilation method, chooses measuring point 1 as after relative pressure zero point, then p1 phaseIt is 0.
S2: the relative pressure of other measuring points is calculated.According to following calculation formula:
Calculate separately out the relative pressure p of measuring point 2, measuring point 3, measuring point 4, measuring point 5, measuring point 62 phases、p3 phases、p4 phases、p5 phases、p6 phases。
S3: the relative pressure of measuring point is corrected.According to mine air direction as shown in Figure 2, correct measuring point relative pressure
It should meet: p1 phase> p2 phases> p3 phases> p5 phases> p6 phasesAnd p1 phase> p2 phases> p4 phases> p5 phases> p6 phases。
If calculated measuring point relative pressure meets mentioned above principle, enter S4.
If calculated measuring point relative pressure does not meet mentioned above principle, need to be modified measuring point relative pressure.It is false
Equipped with p3 phases< p5 phases, modification method is the difference h of the relative pressure according to the measuring point 2 and measuring point 525, further according to measuring point 3 and measuring point 2,
The physical parameter (including length, basal area, perimeter etc.) and air quantity in tunnel, substantially estimate ventilated net between measuring point 3 and measuring point 5
The resistance h of network branch (2,3) and (3,5)23And h35。h25、h23、h35Meet h25=h23+h35.Then according to p2 phasesSubtract h23Or p5 phases
In addition h35Result calculate the amendment relative pressure p ' of measuring point 33 phases.Then p ' is utilized3 phasesSubstitute p3 phasesInto S4.
S4: the windage of ventilation network branch is calculated.It is calculated first, in accordance with the explanation in summary of the invention step 4 all logical
The resistance h of wind network branches12、h23、h35、h56、h24、h45；Then it is calculated according to the formula in summary of the invention step 4 all
The windage R of ventilation network branch12、R23、R35、R56、R24、R45。
S5: the windage of amendment ventilation network branch.By R12、R23、R35、R56、R24、R45It is standardized, calculates
After the natural ventilation pressure of mine, then using obtained parameter together with mine main fan characteristic working curve as corresponding ventilated net
Network fork attribute is input in the ventilation network map of mine ventilation simulation software drafting, is carried out mine ventilation network simulation and is resolved,
Calculate the simulation air quantity Q of all ventilation network branches12、Q23、Q35、Q56、Q24、Q45.By Q12、Q23、Q35、Q56、Q24、Q45With resistance
Power corresponds to ventilation network branch actual air volume during measuring compares, if error within 5%, illustrates R12、R23、R35、
R56、R24、R45Meet actual condition of mines；If error 5% or more, needs to carry out the windage of corresponding ventilation network branch
Amendment, until simulation air quantity Q12、Q23、Q35、Q56、Q24、Q45The actual air volume of ventilation network branch is corresponded to during measure of resistance
Ratio error is reached within 5%.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.
Claims (3)
1. a kind of mensuration of Mine Ventilation Resistance data processing method based on relative pressure, which comprises the steps of:
Step 1: choosing the well head of mine as relative pressure zero point；
Step 2: calculating the relative pressure of other all measuring points, calculation formula are as follows:
In formula: i is measuring point serial number；pI phaseRelative pressure for i measuring point relative to relative pressure zero point, unit Pa；K', k " are respectively
The correction coefficient of barometer I, II；p″i、p″0Respectively barometer II is in i measuring point, the reading of relative pressure zero point, unit Pa；
p′i、p′0Respectively with p "i、p″0The reading of corresponding time barometer I, unit Pa；ρi0It is empty between i measuring point and relative pressure zero point
The average value of air tightness, units/kg/m3；zi、z0The respectively absolute altitude of i measuring point and relative pressure zero point, unit m；ρi、ρ0Respectively
The atmospheric density of i measuring point and relative pressure zero point, units/kg/m3；vi、v0The respectively wind speed of i measuring point and relative pressure zero point,
Unit m/s；
Step 3: the measuring point relative pressure corrected mistake: arranging the relative pressure of all measuring points according to mine air direction
Sequence, according to the difference of the relative pressure of measuring point before and after the measuring point, further according to the tunnel between measuring point before and after the measuring point and the measuring point
Physical parameter and air quantity estimate the resistance of the cross ventilation network branches where the measuring point, then according to it is above-mentioned wherein one it is logical
The estimation Resistance Value of wind network branches sums or makes the difference the amendment for calculating the measuring point with the relative pressure of corresponding another measuring point
Relative pressure, method, corrects the vicious measuring point relative pressure of institute according to this；
Step 4: the windage of ventilation network branch, calculation formula are calculated are as follows:
In formula: R is the windage of ventilation network branch, unit Ns2/m8；H is the resistance of ventilation network branch, and value is ventilation network
The difference of the distinguished and admirable relative pressure for flowing into measuring point and distinguished and admirable outflow measuring point of branch, unit Pa；Q is the air quantity of ventilation network branch, single
Position m3/s；
Step 5: the windage of amendment ventilation network branch: ventilation network branch resistance value is standardized, calculates full mine
After the natural ventilation pressure of well, the characteristic working curve using these parameters together with mine main fan belongs to as corresponding ventilation network branch
Property be input to mine ventilation simulation software drafting ventilation network map in, carry out mine ventilation network simulation resolve, can calculate
The simulation air quantity of all ventilation network branches out；By above-mentioned calculated simulation air quantity with ventilation network is corresponded to during measure of resistance
The actual air volume of branch compares, if error within 5%, illustrates that the ventilation network branch resistance of above-mentioned acquisition meets mine
Actual conditions, if error 5% or more, needs the windage to corresponding ventilation network branch to be modified, until all tunnels
Air quantity ratio error is reached within 5%.
2. the mensuration of Mine Ventilation Resistance data processing method according to claim 1 based on relative pressure, feature exist
In in step 1, if mine is chosen into mine air inlet using exhaust ventilation method as relative pressure zero point；If mine
Well uses forced ventilation method, then chooses mine air outlet as relative pressure zero point.
3. the mensuration of Mine Ventilation Resistance data processing method according to claim 2 based on relative pressure, feature exist
In in step 3, correct measuring point relative pressure should meet following principle: if mine uses exhaust ventilation method, from phase
Pressure zero is started, until mine main fan wind cave, relative pressure should be sequentially reduced；If mine uses forced ventilation method,
Since relative pressure zero point, until mine main fan wind cave, relative pressure should be sequentially increased.
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Cited By (3)
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| CN110968829A (en) * | 2019-11-27 | 2020-04-07 | 重庆科技学院 | Ventilation resistance correction calculation method based on air pressure fluctuation phase difference processing |
| CN111005762A (en) * | 2020-01-03 | 2020-04-14 | 辽宁工程技术大学 | Improved method for measuring resistance of inclined differential pressure meter |
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