CN103711520B - Underground Local Fan electric power system - Google Patents
Underground Local Fan electric power system Download PDFInfo
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- CN103711520B CN103711520B CN201310694604.6A CN201310694604A CN103711520B CN 103711520 B CN103711520 B CN 103711520B CN 201310694604 A CN201310694604 A CN 201310694604A CN 103711520 B CN103711520 B CN 103711520B
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- Prior art keywords
- fan
- switch
- power supply
- automatic transfer
- blower
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Control Of Positive-Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of Underground Local Fan electric power system, it is on the basis of " two fans, dual power supply ", " three special, two close lock " electric power system, it is that blower fan is powered that another increase by one road power specializes in circuit, by standby fan on-off control, guarantee when line fault specialized in by blower fan, power specializes in circuit normal power supply, stops without plan blowing-out.The present invention improves underground coal mine local fan of heading face Supply Security, can reduce and avoid, because the reason such as line fault, artificial maloperation causes heading end the situation without plan blowing-out occur, to eliminate because the heading end gas caused without plan blowing-out increases the potential safety hazard brought to production.
Description
Technical field
The present invention relates to a kind of electric power system, particularly relate to the electric power system of a kind of Underground Fan.
Background technology
At present, gushing out of China's coal-mine gas causes a lot of coal mining accident.The area that especially gas emission is big, along with exploitation
Being continuously increased of the degree of depth, the continuous expansion of exploitation scale, gas emission increases the most year by year, according to statistics, coal mine gas explosion
There is 70% generation at driving face, and during occurring mostly in firedamp drainage.
In order to during effectively preventing mining construction because of Gas Outburst or transfinite and cause gas and dust explosion, the accident such as gas asphyxiation
Generation, " safety regulations in coal mine " specifies, " gas ejection region, highly gassy mine, coal (rock) and gas (carbon dioxide)
In projecting mine, the booster of driving face should use dedicated transformer, special switch, special circuit (being called for short three special)
Power supply." it addition, also requirement must use " two close lock ", i.e. driving face gas electric shutting and lock between air and electricity.Wherein gas
Electric locking refers to when driving face gas density transfinites, and sound and light alarm also automatically cuts off work surface and meets head on controlled device power supply；
Lock between air and electricity refers to, when local main fan shuts down or wind tube wind quantity is less than setting, (remove in automatically cutting off driving face
Outside standby fan power supply) all devices power supply.
" three is special " powers also known as blower fan special line, and its load is exactly blower fan, is to realize blower fan to continuously run the premise of air feed.Down-hole
The circuit of other loads is commonly referred to power special line, and the load that it is carried is all loads in the pit shaft beyond blower fan.Power special line
Load because being carried is many, and in pit shaft, construction environment is severe, often the phenomenons such as moist especially, trickle is big occur, circuit easily occurs
The situation that fault is many, thus cause tripping operation power-off, if ventilation blower does not accomplishes that " three is special " powers, then cause driving face because of
Have a power failure and blowing-out, thus bring security threat to operating personnel or cause gas to be piled up.
The Chinese patent " device that under a kind of mine, portable blower is powered " of application number 200820107938.3 discloses one can be for coal
The device of ore deposit Underground Local Fan uninterrupted power supply.This device includes that central substation high-pressure vacuum switch, working section sub station are high
Pressure vacuum switch, main station fan, secondary portable blower, backup auto-activating device and ground box type transformator, for the easy switching of blower fan, use
The mode that major-minor portable blower automatically switches, when main station fan has a power failure suddenly, PAU+FCU system switch automatic transfer switch within is automatic
It is switched to slave duty, makes secondary portable blower automatically start, and the response time is the shortest, can ensure that work surface under normal circumstances
Normal ventilation, it is to avoid methane accumulation causes danger.But, in actual applications, this " two fans, dual power supply " power supply system
Unified denier occurs that switch fault or artificial maloperation cause automatic transfer switch can not normally switch or automatic transfer switch power supply trouble
Time, the situation that work surface is stuffy, gas accumulation causes potential safety hazard still can occur.
Summary of the invention
Even if it is an object of the invention to provide one automatic transfer switch fault, still ensure that blower fan normally works, makes work surface
Draughty electric power system.
For reaching above-mentioned purpose, the invention provides a kind of Underground Local Fan electric power system, use original " two fans,
Dual power supply " on the basis of technology and " three is special ", " two close lock " technology, increase by a road power for blower fan and specialize in circuit, it is ensured that wind
When line fault specialized in by machine, power specializes in circuit normal power supply, including " three is special ", " two close lock ", portable blower automatic transfer switch,
Main station fan, auxiliary portable blower, interlocking switch etc..
Described automatic transfer switch includes main and auxiliaries, and described main frame is connected by the first blower fan power supply in electric substation specializes in change
Transformer power-supply, described subsidiary engine is connected another by the second blower fan power supply in electric substation and specializes in transformer-supplied.Described first wind
Machine power supply and the second blower fan power supply are taken respectively from two sections of buses in electric substation.During described automatic transfer switch main shut-down system,
Automatically switch to subsidiary engine duty.
Described main station fan and auxiliary portable blower have prime motor and rear class motor respectively.
Described automatic transfer switch main frame connects prime and the rear class motor of main station fan, and described automatic transfer switch subsidiary engine connects auxiliary office
The prime motor of fan.
The rear class motor of described auxiliary portable blower connects a standby fan switch, and described standby fan switch connects another and specializes in transformator,
Being powered by the 3rd blower fan power supply, described 3rd blower fan power supply takes from electric substation another bus or for stand-by power supply.Institute
State automatic transfer switch main frame and realize " wind-powered electricity generation, gas Electricity Federation lock " with interlocking switch, realize control automatically with described standby fan switch
System, when automatic transfer switch main shut-down system, auxiliary portable blower is also powered by standby fan switch Guan Bi.
The upper connection of described standby fan switch has power supply indicator.
Preferably, automatic transfer switch main frame is internally provided with a normally closed node, is in host work state at automatic transfer switch
Time, this normally closed node disconnects, and standby fan switches off；When automatic transfer switch main frame power-off, this normally closed node closes,
Control standby fan switch Guan Bi, auxiliary portable blower rear class electric motor starting.
Preferably, described standby fan switch specializing in power supply and specializing in transformer-supplied by interlocking switch.
The down-hole portable blower electric power system of the present invention is truly realized the most standby of " two fans " and " three power supplys ", and it can
Have with the function realized:
During main shut-down system, automatic transfer switch automatically switches, and automatic transfer switch automatically switches to switch subsidiary engine duty,
Standby auxiliary fan prime electric motor starting, auxiliary portable blower normally works；Meanwhile, automatic transfer switch main frame is with standby fan switch certainly
Dynamic association, makes standby fan switch Guan Bi, auxiliary fan rear class electric motor starting, automatic transfer switch subsidiary engine and standby fan switch simultaneously
It it is that auxiliary portable blower is powered, it is ensured that the normal air feed of boring head.
Specializing in circuit when two-way blower fan causes the automatic transfer switch can not because specializing in the reasons such as circuit, switch fault or artificial maloperation
When normal switching or automatic transfer switch main frame, subsidiary engine all have a power failure, after automatic transfer switch main frame has a power failure, standby fan switchs
Automatically Guan Bi, auxiliary portable blower rear class motor belt motor electrically activates, it is ensured that auxiliary portable blower has a motor normally to work, and makes boring head normal
Air feed.
The advantage of this system is, two-way blower fan is specialized in circuit and caused certainly because specializing in the reasons such as circuit, switch fault or artificial maloperation
When dynamic switching switch can not normally switch or after automatic transfer switch main shut-down system, standby fan switch automatic pick, before auxiliary fan
Level or rear class motor have electricity, still ensure that auxiliary fan has a motor normally to work, and boring head still has wind.Reduce and avoid because of line
The reasons such as road fault, artificial maloperation cause heading end to occur without plan blowing-out, eliminate because causing heading end gas without plan blowing-out
Increase the potential safety hazard brought to production.
Accompanying drawing explanation
Fig. 1 is the principle schematic of Underground Local Fan electric power system of the present invention；
Fig. 2 is the exclusive circuit principle schematic of Underground Local Fan electric power system of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail:
As it is shown in figure 1, the Underground Local Fan electric power system of the present invention, in addition to circuit specialized in by original two-way blower fan, separately increase
Add a road power line.
The automatic transfer switch of the present embodiment includes main frame 1 and subsidiary engine 2, and main frame 1 is specialized in transformator with one and is connected, subsidiary engine 2 with
Another is specialized in transformator and is connected.Underground Local Fan portable blower includes main station fan 3 and auxiliary portable blower 4, and two portable blowers have prime respectively
Motor and rear class motor.Automatic transfer switch main frame 1 is connected with prime motor and the rear class motor of main station fan 3, and subsidiary engine 2 is with auxiliary
The prime motor of portable blower 4 is connected.One end of the rear class motor of auxiliary portable blower 4 and standby fan switch 5 is connected, by standby wind
The other end of machine switch 5 is connected with power supply, a circuit is also drawn by this standby fan switch 5, powers for power supply indicator.
In the present invention, automatic transfer switch still carries out double loop " three is special " power supply, and the power supply specializing in transformator is taken respectively from power transformation
Two sections of buses in institute.One of them specializes in transformator is that automatic transfer switch main frame 1 is powered, and automatic transfer switch main frame 1 controls
Two motors of main station fan 3, and realize " wind-electricity interlock " with interlocking switch 6；Another specializes in transformator is automatic transfer switch
Subsidiary engine 2 is powered, and automatic transfer switch subsidiary engine 2 controls auxiliary portable blower 4 prime motor.The power supply of standby fan switch 5 is from wind-powered electricity generation
Interlocking switch 6 power source special, this power source special takes from another bus in the electric substation in addition to above-mentioned two bus.Standby fan is opened
Close the 5 auxiliary portable blower 4 rear class motors of control, and realize automatically controlling with the main frame 1 of automatic transfer switch.Standby fan switch 5 draws
Going out 36V power supply, install power supply indicator, whether display switch is in electriferous state.Automatic transfer switch is in normal operating conditions
Under, when automatically switching, main frame 1 automatically controls by inside after shutting down and is switched to switch donkeyman and makees state, auxiliary portable blower 4
Prime electric motor starting；Meanwhile standby fan switchs 5 adhesives, auxiliary portable blower 4 rear class electric motor starting, and auxiliary portable blower 4 normally works,
Ensure the normal air feed of boring head.When two-way blower fan specializes in circuit because specializing in the reasons such as circuit, switch fault or artificial maloperation,
Automatic transfer switch is caused normally not switch or time automatic transfer switch main frame 1 all has a power failure with subsidiary engine 2, at automatic transfer switch
After main frame 1 power-off, standby fan switchs 5 automatic picks, and the rear class motor of auxiliary portable blower 4 has electricity, still ensures that auxiliary portable blower 4 has one
Platform motor normally works, and boring head still has wind.
As in figure 2 it is shown, be gas electricity, the schematic diagram of lock between air and electricity, the down-hole portable blower electric power system of the present invention includes that gas electricity closes
Lock, lock between air and electricity function.Gas electric shutting: when the super regulation of driving face gas density, firedamp sensor gathers information,
Dissipation gas supervisory substation in coal mining sends power-off signal, makes interlocking switch power-off, the whole power-off of the non-intrinsic safety electric source of driving face so that gas
Electric locking contact K3, K4 disconnect, and intermediate relay ZJ discharges, and auxiliary contact ZJ1, ZJ2, ZJ3 close, feeding switch control
Loop processed, makes the power cut-off of down-hole and well head, and booster still runs as usual.
Lock between air and electricity: when booster main air blower have a power failure or break down shut down time, fan monitoring substation send power-off letter
Number, blower fan latch contact K1, K2 disconnect, and intermediate relay ZJ release, Guan Bi electrical source of power control loop, simultaneously turn off well
Descend and the power supply of well head.
Above embodiment is only to be described the preferred embodiment of the present invention, is not defined the scope of the present invention,
On the premise of designing spirit without departing from the present invention, it is each that technical scheme is made by this area ordinary skill technical staff
Plant deformation and improve, all should fall in the protection domain that claims of the present invention determines.
Claims (4)
1. a Underground Local Fan electric power system, automatic transfer switch, main station fan (3), auxiliary portable blower (4), interlocking switch
(6), described automatic transfer switch includes main frame (1) and subsidiary engine (2), and described main frame (1) is supplied by the first blower fan in electric substation
Electricity power supply is powered, and described subsidiary engine is powered by the second blower fan power supply, when described automatic transfer switch main frame (1) is shut down, automatically
Switching switch is switched to subsidiary engine duty, and described main station fan (3) and auxiliary portable blower (4) have prime motor and rear class motor respectively,
It is characterized in that,
Prime motor, rear class motor that described automatic transfer switch main frame (1) is fanned with main station are connected, and described automatic transfer switch is auxiliary
Machine (2) is connected with the prime motor of auxiliary portable blower；
Described down-hole local ventilation electric power system includes the 3rd blower fan power supply and standby fan switch (5), described 3rd blower fan
Power supply switchs (5) and is connected with described standby fan, described standby fan switch (5) and the rear class of described auxiliary portable blower (4)
Motor is connected；
Described automatic transfer switch main frame (1) realizes " lock between air and electricity, gas electric shutting " with interlocking switch (6), standby with described
Realize automatically switching with fan switch (5), when automatic transfer switch main frame (1) is shut down, standby fan switch (5) Guan Bi,
And auxiliary portable blower (4) is powered；
Described automatic transfer switch main frame (1) is internally provided with a normally closed node, is in host work state at automatic transfer switch
Time, this normally closed node disconnects, and standby fan switch (5) disconnects, and when automatic transfer switch main frame (1) power-off, this is normally closed
Node closes, and controls standby fan switch (5) Guan Bi, auxiliary portable blower (4) rear class electric motor starting.
Underground Local Fan electric power system the most according to claim 1, it is characterised in that
Described first blower fan power supply and the second blower fan power supply are taken respectively from two buses in electric substation, are connected to
One specializes in transformator and second specializes in transformator, and described first specializes in transformator connects automatic transfer switch main frame (1), and described the
Two specialize in transformator connects automatic transfer switch subsidiary engine (2)；
Described 3rd blower fan power supply takes from another article of bus in electric substation, or takes from stand-by power supply.
Underground Local Fan electric power system the most according to claim 2, it is characterised in that described 3rd blower fan is powered electricity
Source is that power supply specialized in by interlocking switch, and it is interlocking switch (6) and standby fan switch (5) power supply simultaneously.
Underground Local Fan electric power system the most according to claim 3, it is characterised in that described standby fan switch (5)
Upper connection has power supply indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310694604.6A CN103711520B (en) | 2013-12-17 | 2013-12-17 | Underground Local Fan electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310694604.6A CN103711520B (en) | 2013-12-17 | 2013-12-17 | Underground Local Fan electric power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103711520A CN103711520A (en) | 2014-04-09 |
| CN103711520B true CN103711520B (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310694604.6A Active CN103711520B (en) | 2013-12-17 | 2013-12-17 | Underground Local Fan electric power system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332735B (en) * | 2014-08-11 | 2018-01-30 | 山西全安新技术开发有限公司 | Prevent the method and system of colliery livewire work and gas explosion |
| CN106125641A (en) * | 2016-02-15 | 2016-11-16 | 上海颐坤自动化控制设备有限公司 | Local fan monitoring system |
| CN109617072A (en) * | 2019-02-25 | 2019-04-12 | 四川师范大学 | Supply network in coal mine comprehensive optimization system |
| CN110130967B (en) * | 2019-03-26 | 2021-07-30 | 淮北矿业股份有限公司 | Device and method for preventing gas from exceeding limit by local ventilator guarantee technology |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2408613Y (en) * | 1998-09-25 | 2000-11-29 | 蔡双喜 | Double local leaf double power source automatic switching locking device |
| CN101246364B (en) * | 2008-02-01 | 2011-07-27 | 侯媛彬 | Double-local fan fault diagnosis and automatic switching closedown integrated device |
| CN201174616Y (en) * | 2008-03-27 | 2008-12-31 | 翟红 | Power supplying device for mine well part fan |
| US9490636B2 (en) * | 2010-12-08 | 2016-11-08 | Panasonic Intellectual Property Management Co., Ltd. | Power supply circuit, power supply method and power supply system |
| CN202333959U (en) * | 2011-11-11 | 2012-07-11 | 山西晋城无烟煤矿业集团有限责任公司 | Power supply control device of underground auxiliary ventilator in mine |
| CN203702254U (en) * | 2013-12-17 | 2014-07-09 | 国投新集能源股份有限公司 | Underground local ventilator power supply system |
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| CN103711520A (en) | 2014-04-09 |
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