CN105697049B - A kind of heading end spaced series ventilation is automatic to adjust wind protective device and method - Google Patents
A kind of heading end spaced series ventilation is automatic to adjust wind protective device and method Download PDFInfo
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- CN105697049B CN105697049B CN201610051124.1A CN201610051124A CN105697049B CN 105697049 B CN105697049 B CN 105697049B CN 201610051124 A CN201610051124 A CN 201610051124A CN 105697049 B CN105697049 B CN 105697049B
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- booster
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- frequency conversion
- control module
- comprehensive control
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- 238000009423 ventilation Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000001681 protective effect Effects 0.000 title claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 50
- 230000003068 static effect Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F1/04—Air ducts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Ventilation (AREA)
Abstract
A kind of heading end spaced series ventilation is automatic to adjust wind protective device and method, and described device includes more than two boosters, flexible air duct, differential pressure transmitter and frequency conversion comprehensive control module；The booster is connected in series with by flexible air duct, and before the positive pressure side of the differential pressure transmitter stretches into the rear stage booster inlet scoop in previous stage flexibility air duct, negative pressure end is placed in outside the flexible air duct；The differential pressure transmitter is connect with frequency conversion comprehensive control module, and frequency conversion comprehensive control module is connect with booster.The method is：Booster is opened, differential pressure transmitter measures the pressure difference at positive pressure side and negative pressure end, sends frequency conversion comprehensive control module processing pressure difference data to, the suction air volume for booster of connecting by the Automatic Frequency Control for changing the booster connected.It is flat that apparatus of the present invention can avoid flexible air duct from being inhaled, and ensure booster safety, extend local ventilation air feed distance, improve driving face air feed quality and safety.
Description
Technical field
It divulges information the present invention relates to a kind of heading end spaced series and adjusts wind protective device and method automatically, and in particular to Yi Zhongkuang
Well and the automatic tune wind protective device of Tunnel Engineering middle and long distance dead face heading end spaced series ventilation and method.
Background technology
In mine laneway and engineering tunnel work progress, especially development period, the only of long range is usually tunneled
Head tunnel（Tunnel）, because ventilation distance is longer, separate unit booster can not be overcome along journey ventilation resistance, generally use series connection 2
Platform and the ventilation of more than booster.It can be divided by booster arrangement and concentrate series ventilation and spaced series ventilation.
It is used widely since spaced series are smaller than concentration series connection inleakage, still, when the suction of latter Fans in spaced series
When air quantity is more than the air output of previous Fans end air duct, flexible air duct can be flat by suction, can be by partially flexible air duct when serious
Wind turbine is sucked, leads to latter Fans burn-down of electrical machinery.
Yunnan Yuqing China of Xi Ye groups etc.（Application [J] China ore deposit of the differential pressure compensator in long blind heading series ventilation
Mountain engineering, the phase of volume 2005.08,34 4）It devises differential pressure compensator to be connected between two Fans, can automatically control outside air duct
Foul atmosphere enters air duct, realizes pressure balance inside and outside air duct.Scheme disclosed in CN203130137U is by two-stage part
The hard of ventilation blower and flexible air duct interface, which stay, to be set gap wind pressure is put down inside and outside air duct to realize to be automatically drawn into waste air in tunnel
Weighing apparatus.But both modes, rear stage booster can suck the waste air after scrubbing development end, contain dust and toxic
Pernicious gas causes waste air to be recycled in driving face, reduces air supply of working face quality, be unfavorable for keeping the safety in production.
Invention content
The technical problems to be solved by the invention are to overcome drawbacks described above of the existing technology, provide a kind of automatic reality
The existing series ventilation machine front stage air quantity equilibrium of supply and demand avoids flexible air duct from being inhaled flat, and the heading end interval string that air feed is high-quality
Unicom wind adjusts wind protective device automatically.
Further technical problems to be solved of the invention are to overcome drawbacks described above of the existing technology, provide one kind and cut
It is real to ensure booster safety, it can effectively extend local ventilation air feed distance, improve the driving of driving face air feed quality
Head spaced series ventilation is automatic to adjust wind guard method.
The technical solution adopted by the present invention to solve the technical problems is as follows：A kind of heading end spaced series ventilation is automatic to adjust
Wind protective device, including more than two boosters, flexible air duct, differential pressure transmitter and frequency conversion comprehensive control module；Institute
It states booster to be connected in series with by flexible air duct, the positive pressure side of the differential pressure transmitter is stretched into previous stage flexibility air duct
Before rear stage booster inlet scoop, negative pressure end is placed in outside the flexible air duct；The differential pressure transmitter is controlled with frequency conversion synthesis
Molding block connects, and frequency conversion comprehensive control module is connect with booster.The rear stage booster and previous stage part
The flexible air duct of ventilation blower is connected directly, and interface does not interspace.What the positive pressure side of the differential pressure transmitter measured is flexible wind
Static air pressure in cylinder, what negative pressure end measured is the static air pressure that is, in tunnel outside flexible air duct.The frequency conversion Comprehensive Control mould
Block can change out-put supply frequency automatically according to the data that differential pressure transmitter measures, to balance the confession of series ventilation machine front stage air quantity
It needs to balance.
Booster described in apparatus of the present invention and frequency conversion comprehensive control module are powered by underground power supply used net, differential pressure transporting
Device is powered by frequency conversion comprehensive control module, and underground power supply used net can directly power, and interior power, side can be also installed in apparatus of the present invention
Store side power supply.
Technical solution is used by the present invention further solves its technical problem：A kind of heading end spaced series ventilation is certainly
It is dynamic to adjust wind guard method, booster is opened, differential pressure transmitter measures positive pressure side and flexible wind in previous stage flexibility air duct
The pressure difference at the negative pressure end outside cylinder, and send pressure difference data to frequency conversion comprehensive control module, frequency conversion comprehensive control module processing pressure
Difference data, the suction air volume of the Automatic Frequency Control series connection booster for the booster connected by changing rear stage are real
Now ventilation is automatic to adjust wind protection.
Further, when positive pressure end pressure is more than negative pressure end pressure, the frequency conversion comprehensive control module improves output frequency,
To increase rear stage booster suction air volume.When positive pressure end pressure is more than negative pressure end pressure, illustrate previous stage local ventilation
Machine air output is more than rear stage booster suction air volume, preceding by improving the out-put supply frequency of rear stage booster
Level-one booster air output reaches balance, the volume of air supply in steady operation face with rear stage booster suction air volume.
Further, when positive pressure end pressure is less than negative pressure end pressure, the frequency conversion comprehensive control module reduces output frequency,
To reduce rear stage booster suction air volume.When positive pressure end pressure is less than negative pressure end pressure, illustrate previous stage local ventilation
Machine air output is less than rear stage booster suction air volume, preceding by reducing the out-put supply frequency of rear stage booster
Level-one booster air output reaches balance with rear stage booster suction air volume, and previous stage flexibility air duct is avoided to be inhaled
It is flat.
Further, when positive pressure end pressure is equal to negative pressure end pressure, the frequency conversion comprehensive control module keeps output frequency
It is constant, do not change the suction air volume of rear stage booster.When positive pressure end pressure is equal to negative pressure end pressure, illustrate previous stage office
Portion's ventilation blower air output is equal to rear stage booster suction air volume.
Further, when the pressure difference at positive pressure side and negative pressure end is more than pressure difference limit value, frequency conversion comprehensive control module cut-out part
Ventilation electromechanical source, closes booster, realizes automatic shutdown.Automatic shutdown can be effectively protected rear stage booster peace
Entirely, booster is avoided to be burnt due to electric current is excessive.
Pressure difference limit value and pressure difference difference and the ratio of frequency shift between the booster of the series connection shift to an earlier date typing
Frequency conversion comprehensive control module.
The course of work of apparatus of the present invention is：First order booster distinguished and admirable is delivered to string by flexible air duct by fresh
The second level booster of connection, and so on, the multistage part such as the fresh distinguished and admirable third level for being delivered to series connection, fourth stage is logical
Wind turbine.The positive pressure side of differential pressure transmitter before the rear stage booster inlet scoop stretched into previous stage flexibility air duct is constantly surveyed
Static air pressure in the flexible air duct of amount is placed in the outer negative pressure end of flexible air duct and constantly measures air in the outer tunnel of flexible air duct
Static pressure.The differential pressure transmitter is connect with frequency conversion comprehensive control module, and frequency conversion comprehensive control module is connect with booster.When
When positive pressure end pressure is more than negative pressure end pressure, frequency conversion comprehensive control module improves the out-put supply frequency of rear stage booster
To increase rear stage booster suction air volume；When positive pressure end pressure is less than negative pressure end pressure, frequency conversion comprehensive control module drop
The out-put supply frequency of low rear stage booster is to reduce rear stage booster suction air volume；When positive pressure end pressure is equal to
During negative pressure end pressure, frequency conversion comprehensive control module keeps output frequency constant, does not change rear stage booster suction air volume；When
When the pressure difference at positive pressure side and negative pressure end is more than pressure difference limit value, frequency conversion comprehensive control module cut-out local ventilation electromechanical source, closing office
Portion's ventilation blower realizes automatic shutdown.
The present invention operation principle be：Pass through exogenous wind in the flexible air duct of the measurement series connection closely distinguished and admirable entrance of booster
Pressure changes series connection local ventilation unit frequency according to leeway inside and outside air duct, adjusts series connection booster suction air volume, automatic to realize
The front stage local ventilation fan delivery equilibrium of supply and demand.
Apparatus of the present invention installation is simple, Fundamentals of Measurement parameter in air duct, static pressure in tunnel, static pressure distribution is uniform, measures
It is simple and reliable.Flexible air duct can be avoided to be inhaled using apparatus of the present invention flat, ensure booster safety conscientiously, can effectively extend
Local ventilation air feed distance improves driving face air feed quality and air feed safety, scientific and effective.
Description of the drawings
Fig. 1, which is that the ventilation of heading end of embodiment of the present invention spaced series is automatic, adjusts wind protective device overall structure diagram.
Specific embodiment
With reference to embodiment and attached drawing, the invention will be further described.
Embodiment 1
As shown in Figure 1, heading end spaced series ventilation is automatic to adjust wind protective device, including three boosters 1,
Flexible air duct 2, differential pressure transmitter 3 and frequency conversion comprehensive control module 4；The booster 1 is connected by flexible air duct 2 to be connected
It connects, the positive pressure side of the differential pressure transmitter 3（+）Stretch into 1 inlet scoop of rear stage booster in previous stage flexibility air duct 2
Before, negative pressure end（-）It is placed in outside the flexible air duct 2, the differential pressure transmitter 3 is connect with frequency conversion comprehensive control module 4, becomes frequency synthesizer
Control module 4 is closed to connect with booster 1.The flexible wind of the rear stage booster 1 and previous stage booster 1
Cylinder 2 is connected directly, and interface does not interspace.The positive pressure side of the differential pressure transmitter 3（+）What is measured is the sky in flexible air duct 2
Gas static pressure, negative pressure end（-）What is measured is the static air pressure that is, in tunnel outside flexible air duct 2.The booster 1 and frequency conversion
Comprehensive control module 4 is powered by underground power supply used net, and differential pressure transmitter 3 is powered by frequency conversion comprehensive control module 4.
A kind of heading end spaced series ventilation is automatic to adjust wind guard method：Booster 1 is opened, differential pressure transmitter 3 is surveyed
Measure the positive pressure side in previous stage flexibility air duct 2（+）With the negative pressure end outside flexible air duct 2（-）Pressure difference, and pressure difference data is transmitted
To frequency conversion comprehensive control module 4, frequency conversion comprehensive control module 4 handles pressure difference data, and the part connected by changing rear stage leads to
The suction air volume of the Automatic Frequency Control series connection booster 1 of wind turbine 1 realizes that ventilation is automatic and adjusts wind protection.When positive pressure side（+）Pressure
Power is more than negative pressure end（-）During pressure, frequency conversion comprehensive control module 4 is by improving the out-put supply of rear stage booster 1 frequently
Rate, the suction air volume of increase rear stage booster 1；When positive pressure side（+）Pressure is less than negative pressure end（-）During pressure, frequency conversion synthesis
Control module 4 reduces the air draught of rear stage booster 1 by reducing the out-put supply frequency of rear stage booster 1
Amount；When positive pressure side（+）Pressure is equal to negative pressure end（-）During pressure, frequency conversion comprehensive control module 4 keeps output frequency constant, does not change
Become the suction air volume of rear stage local ventilation 1；When the pressure difference at positive pressure side and negative pressure end is more than pressure difference limit value, frequency conversion Comprehensive Control mould
Block 4 cuts off 1 power supply of booster, closes booster 1, realizes automatic shutdown.Between the booster 1 of the series connection
Pressure difference limit value and pressure difference difference and the ratio of frequency shift shift to an earlier date typing frequency conversion comprehensive control module 4.
The course of work of apparatus of the present invention is：First order booster 1 distinguished and admirable is delivered to by flexible air duct 2 by fresh
The second level booster 1 of series connection, second level booster 1 distinguished and admirable are delivered to the third level by flexible air duct 2 by fresh
Booster 1.Stretch into the differential pressure transmitter 3 before 1 inlet scoop of second level booster in first order flexibility air duct 2 just
Pressure side（+）The static air pressure in flexible air duct 2 is constantly measured, is placed in the flexible 2 outer negative pressure end of air duct（-）It constantly measures flexible
Static air pressure in 2 outer tunnel of air duct.The differential pressure transmitter 3 is connect with frequency conversion comprehensive control module 4, frequency conversion Comprehensive Control mould
Block 4 is connect with booster 1.When positive pressure side（+）Pressure is more than negative pressure end（-）During pressure, frequency conversion comprehensive control module 4 passes through
The out-put supply frequency of rear stage booster 1 is improved to increase the suction air volume of rear stage booster 1；When positive pressure side
（+）Pressure is less than negative pressure end（-）During pressure, output electricity of 4 blocks of the frequency conversion Comprehensive Control mould by reducing rear stage booster 1
Source frequency is to reduce the suction air volume of rear stage booster 1；When positive pressure side（+）Pressure is equal to negative pressure end（-）During pressure, frequency conversion
Comprehensive control module 4 keeps output frequency constant, does not change rear stage booster suction air volume；When positive pressure side and negative pressure end
When pressure difference is more than pressure difference limit value, frequency conversion comprehensive control module 4 cuts off 1 power supply of booster, closes booster 1, realizes
Automatic shutdown.
Claims (7)
1. a kind of heading end spaced series ventilation is automatic to adjust wind protective device, it is characterised in that：Lead to including more than two parts
Wind turbine, more than two flexible air ducts, more than two differential pressure transmitters and more than two frequency conversion comprehensive control modules；It is described
Booster is connected in series with by flexible air duct, after the positive pressure side of the differential pressure transmitter is stretched into previous stage flexibility air duct
Before level-one booster inlet scoop, negative pressure end is placed in outside the flexible air duct；The differential pressure transmitter and frequency conversion Comprehensive Control
Module connects, and frequency conversion comprehensive control module is connect with booster；The rear stage booster is locally logical with previous stage
The flexible air duct of wind turbine is connected directly, and interface does not interspace.
2. carry out the automatic tune wind guard method of heading end spaced series ventilation with claim 1 described device, it is characterised in that：It opens
Booster is opened, differential pressure transmitter measures the positive pressure side in previous stage flexibility air duct and the pressure at the negative pressure end outside flexible air duct
Difference, and send pressure difference data to frequency conversion comprehensive control module, frequency conversion comprehensive control module processing pressure difference data, after change
The suction air volume of the Automatic Frequency Control series connection booster of the booster of level-one series connection, realizes that ventilation is automatic and wind is adjusted to protect
Shield.
3. the ventilation of heading end spaced series is automatic according to claim 2 adjusts wind guard method, it is characterised in that：When positive pressure side
When pressure is more than negative pressure end pressure, the frequency conversion comprehensive control module improves output frequency, to increase rear stage booster
Suction air volume.
4. the ventilation of heading end spaced series is automatic according to claim 2 adjusts wind guard method, it is characterised in that：When positive pressure side
When pressure is less than negative pressure end pressure, the frequency conversion comprehensive control module reduces output frequency, to reduce rear stage booster
Suction air volume.
5. the ventilation of heading end spaced series is automatic according to claim 2 adjusts wind guard method, it is characterised in that：When positive pressure side
When pressure is equal to negative pressure end pressure, the frequency conversion comprehensive control module keeps output frequency constant, and it is locally logical not change rear stage
The suction air volume of wind turbine.
6. the ventilation of heading end spaced series is automatic according to claim 3 adjusts wind guard method, it is characterised in that：When positive pressure side
When being more than pressure difference limit value with the pressure difference at negative pressure end, frequency conversion comprehensive control module cut-out local ventilation electromechanical source closes local ventilation
Machine realizes automatic shutdown.
7. the ventilation of heading end spaced series is automatic according to claim 4 adjusts wind guard method, it is characterised in that：When positive pressure side
When being more than pressure difference limit value with the pressure difference at negative pressure end, frequency conversion comprehensive control module cut-out local ventilation electromechanical source closes local ventilation
Machine realizes automatic shutdown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051124.1A CN105697049B (en) | 2016-01-27 | 2016-01-27 | A kind of heading end spaced series ventilation is automatic to adjust wind protective device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051124.1A CN105697049B (en) | 2016-01-27 | 2016-01-27 | A kind of heading end spaced series ventilation is automatic to adjust wind protective device and method |
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| Publication Number | Publication Date |
|---|---|
| CN105697049A CN105697049A (en) | 2016-06-22 |
| CN105697049B true CN105697049B (en) | 2018-06-12 |
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| CN201610051124.1A Active CN105697049B (en) | 2016-01-27 | 2016-01-27 | A kind of heading end spaced series ventilation is automatic to adjust wind protective device and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869984B (en) * | 2017-03-02 | 2019-08-27 | 中国矿业大学 | A kind of long distance driving tunnel portable blower series ventilation automatic adjustment protective device |
| CN109931090B (en) * | 2019-04-19 | 2020-10-09 | 陈严怀 | Air quantity compensation device of local fan |
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| CN203743031U (en) * | 2013-11-30 | 2014-07-30 | 南阳防爆集团股份有限公司 | Intelligent local ventilation system for coal mines |
| CN204646288U (en) * | 2015-04-03 | 2015-09-16 | 广东梅雁吉祥水电股份有限公司 | A kind of mine fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007278022A (en) * | 2006-04-11 | 2007-10-25 | Sakamoto Shokai:Kk | Air duct device and ventilator in tunnel gallery |
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2016
- 2016-01-27 CN CN201610051124.1A patent/CN105697049B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203743031U (en) * | 2013-11-30 | 2014-07-30 | 南阳防爆集团股份有限公司 | Intelligent local ventilation system for coal mines |
| CN204646288U (en) * | 2015-04-03 | 2015-09-16 | 广东梅雁吉祥水电股份有限公司 | A kind of mine fan |
Non-Patent Citations (1)
| Title |
|---|
| 多级自动调速对旋风机在掘进通风中的应用;王震;《山西煤炭管理干部学院学报》;20140225;第27卷(第1期);第54-56,64页 * |
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