Content of the invention
It is an object of the invention to providing a kind of exportable multiple electricity to underground coal mine electrical equipment, safety means or facilityPressure grade power of alterating and direct current, and out-put supply reliability is high, the quality of power supply is excellent, preparation time length, equipment operation, run simple,There is flame-proof explosion-proof function, simultaneously in the flame-proof mine intelligent integral supply unit that underground coal mine is safe and reliable.
In order to solve posed problems above, the technical solution used in the present invention is:
A kind of flame-proof mine intelligent integral supply unit, described integrated power source apparatus include explosion-proof feeding deviceAnd at least two accumulator power source apparatus being connected with explosion-proof feeding device, and described explosion-proof feeding device also with outsideDown-hole distribution substation communication apparatus, emergency-lighting set, high-voltage switch gear cabinet equipment and power supply unit connect；
Described explosion-proof feeding device includes interlocking switch, is connected to the first dry-type transformer and direct current on interlocking switchBus ± m, the three-phase alternating current vacuum contactor being connected with the first dry-type transformer, two being connected with micro vacuum contactorUninterrupted power source, the ac bus being connected with two uninterrupted power source output ends；
It is connected to dc bus ± m two HF switch DC converters upper and parallel with one another, be connected to dc bus± m two Switching Power Supplies upper and parallel with one another, are connected to the DC control bus ± km on dc bus ± m；
And, it is connected to the AC power output circuit on ac bus (lm, nm), be connected to DC control bus ± kmOn dc source output circuit, be connected to the communication power supply output circuit of two HF switch DC converter output ends.
According to a preferred embodiment of the invention: the second dry type also including being connected with the first dry-type transformer output end is becomeDepressor, the coil of described three-phase alternating current vacuum contactor is connected with the output end of the second dry-type transformer, and described three-phase alternating current is trueThe main contacts of empty contactor is connected with the output end of the first dry-type transformer；And the coil in three-phase alternating current vacuum contactor andIt is additionally provided with control button between the output end of two dry-type transformers.
According to a preferred embodiment of the invention: also include for controlling the enabling of explosion-proof feeding device out-put supply defeatedGo out power-off interlocked control mechanism, described enabling output power-off interlocked control mechanism includes controlling AC power output circuit, direct currentPower output circuit and the micro vacuum contactor of communication power supply output circuit break-make, the main coil of described micro vacuum contactorIt is connected with two Switching Power Supplies, and the main contacts of micro vacuum contactor is connected to AC power output circuit, direct currentIn source follower circuit and communication power supply output circuit, the main coil of described micro vacuum contactor is also by a control button and oneThe limit switch being arranged on high-voltage switch gear cabinet equipment quick operating valve connects.
According to a preferred embodiment of the invention: also include main coil and be connected to AC power output circuit, dc sourceOutput loop dead electricity alarm relay on output circuit and communication power supply output circuit, with output loop dead electricity alarm relayThe supervising device that main contacts connects, and the status indicator lamp in parallel with output loop dead electricity alarm relay main coil.
According to a preferred embodiment of the invention: described accumulator power source apparatus are two, including the first battery feedDevice, the second accumulator power source apparatus, described first accumulator power source apparatus and the second accumulator power source apparatus are presented with flame-proof typeIt is simultaneously connected between electric installation, but asynchronously put into operation, and the first accumulator power source apparatus and the second accumulator power source apparatusBetween there is the control device that controllable its automatic or manual accesses explosion-proof feeding device, it is possible to achieve two battery feedsMain standby, the redundancy use of device one.
According to a preferred embodiment of the invention: described explosion-proof feeding device also includes housing, connecing in housingLine chamber, equipment cavity, described interlocking switch in equipment cavity, described first dry-type transformer, two uninterrupted power sources and two, all in equipment cavity, described two Switching Power Supplies are also in equipment cavity for HF switch DC converter；And with equipmentThe first foam metal radiating for radiating and explosion isolation device and the radiating of the second foam metal are additionally provided with the corresponding housing in chamberAnd explosion isolation device.
According to a preferred embodiment of the invention: described first foam metal radiating and explosion isolation device and the second foam metalThe structure of radiating and explosion isolation device is consistent, all includes the flange being provided with through hole being installed on housing, outer outside flangeAperture on portion's foam metal layer, and the internal foam metal level inside flange, and described outer foam metal level(ppi value) is more than the aperture on internal foam metal level.
According to a preferred embodiment of the invention: the outside of described housing is additionally provided with for preventing coal dust from entering enclosure interiorMetal or nonmetallic Air Filter.
According to a preferred embodiment of the invention: the material phase of described outer foam metal level and internal foam metal levelSame, it is nichrome, copper, iron, aluminum and aluminum alloy mateial.
According to a preferred embodiment of the invention: the joint face between described equipment cavity and wire connection cavity adopts explosion-proof type wiringPost connects, and is additionally provided with manhole on housing.
Compared with prior art, the beneficial effects of the present invention is:
1st, the flame-proof type intelligent integral supply unit of the present invention revolutionizes all underground explosion-proof type switch cubicles at presentControl power supply be the defect powered by inside switch cabinet voltage transformer, solve comprehensive in underground explosion-proof type High-low voltage switch cabinetClose automation equipment to cause because power supply is unreliable, power supply quality is poor to automate protection equipment malfunction, tripping, tripping operation of bypassing the immediate leadership, makeBecome the problem of down-hole large-area power-cuts, improve the reliability of down-hole high pressure power supply unit, greatly reduce and made due to power failureBecome the generation of down-hole accident, solve underground explosion-proof type switch cubicle simultaneously and control power supply cannot adopt back-up source for a long time, makeBecome down-hole accident that the problem of fault message and monitor in real time after having a power failure, cannot be transmitted；
2nd, the flame-proof type intelligent integral supply unit of the present invention by original for underground coal mine numerous and diverse, no intelligent management is manyType of power equipment complex, and is arranged in Flameproof box together, it is possible to provide 660v exchange, 380v exchange, 127v exchange illuminationThe alternating current-direct current of the multiple voltage grades such as power supply, 110v ac control power supply, 110v DC control supply, 48v direct-current signaling power supplyPower supply, it is achieved that the back-up source of the equipment such as underground power supply used, communication, emergency lighting, refuge chamber is powered, can complete ground monitoringThe monitor in real time to underground equipment and region for the center, and underground equipment realizes four remote control function and automatic intelligent management is beaten in order to realizeDescend solid foundation；
3rd, a feeder equipment of the flame-proof type intelligent integral supply unit of the present invention can be concurrently accessed two flame proofsType accumulator power source apparatus, two groups of Switching Power Supplies in parallel, one main one standby, standby mode operation each other, the backup time is moreLong；
4th, the flame-proof type intelligent integral supply unit of the present invention adopts irregular controllability slug type foam metal conductHeat abstractor, so that the design simplification of Flameproof box, structure are more reasonable, can also improve while saving material consumption and protectThe explosion insulation performance of card Flameproof box.
Embodiment
Refering to shown in Fig. 1, the present invention provides a kind of flame-proof mine intelligent integral supply unit, and described integration is electricSource device 1 includes explosion-proof feeding device 10 and at least one accumulator power source apparatus being connected with explosion-proof feeding device 10,And described explosion-proof feeding device 10 is also pressed off with outside down-hole distribution substation communication apparatus 3, emergency-lighting set 4, heightClose cabinet equipment 2 and power supply unit connects, the such as equipment such as video monitoring, oxygen processed, warning.
Refering to shown in Fig. 2, described explosion-proof feeding device 10 includes interlocking switch sa, is connected on interlocking switch saFirst dry-type transformer 1t and dc bus ± m, the three-phase alternating current vacuum contactor jc1 being connected with the first dry-type transformer 1t,Two uninterrupted power sources (du1, du2) being connected with micro vacuum contactor (jc4+, jc4-), with two uninterrupted power sourcesThe ac bus (lm, nm) that (du1, du2) output end connects；It is connected to dc bus ± m two high frequencies upper and parallel with one anotherSwitch dc convertor (tg1, tg2), is connected to dc bus ± m two Switching Power Supplies (dy1, dy2) upper and parallel with one another,It is connected to the DC control bus ± km on dc bus ± m；And the AC power that is connected on ac bus (lm, nm) is defeatedGo out circuit, be connected to the dc source output circuit on DC control bus ± km, be connected to two HF switch DC convertingsThe communication power supply output circuit of device (tg1, tg2) output end.
Interlocking switch sa in the present embodiment must be manually rotated to the position of " breaking ", now the Kuai Kai Qianmen mechanism of Flameproof boxJust can operate；Thus effectively avoid the carelessness of operator on duty, open quick operating valve in the case of there is no power-off, preventThe generation of accident.
The present invention, in order to realize the control of three-phase alternating current vacuum contactor jc1, also includes defeated with the first dry-type transformer 1tGo out the second dry-type transformer 2t, the described coil of three-phase alternating current vacuum contactor jc1 and the second dry-type transformer that end connectsThe output end of 2t connects, the output end of the described main contacts of three-phase alternating current vacuum contactor jc1 and the first dry-type transformer 1tConnect；And it is additionally provided with button between the output end of the coil in three-phase alternating current vacuum contactor jc1 and the second dry-type transformer 2tan1.
The flame-proof type intelligent integral supply unit of the present invention can provide the power of alterating and direct current of following electric pressure: 1, whenAfter down-hole 660v AC power accesses the interlocking switch sa in this integrated power source apparatus feeder equipment, by binding post thereonSwitching, the 660v AC power on 2～3 tunnels can be provided out；660v AC power passes through the first dry-type transformer 1t conversion electricityPressure, it is possible to provide the 380v AC power on 2 tunnels；2nd, pass through the friendship of the exportable 100v～127v of two uninterrupted power sources (du1, du2)Stream power supply, and process because two uninterrupted power sources (du1, du2) can carry out voltage stabilizing inversion rectification another mistake change to power supply, improveThe quality of power supply；3rd, 110v dc source can be provided by dc bus ± m, and the power supply of dc bus ± m is derived from batteryRectification module (not shown) in supply unit and batteries (not shown)；4th, two HF switch DC converters are passed through(tg1, tg2) can provide 48v communication power supply, and the input power of two HF switch DC converters (tg1, tg2) is by straightStream bus ± m provides.
Refering to shown in Fig. 3, in order to improve the security performance of whole supply unit, meet coal peace and require, present invention additionally comprisesFor controlling the door opening electrical outage interlocked control mechanism of explosion-proof feeding device 10 out-put supply, described door opening electrical outage interlocked controlMechanism includes controlling the micro vacuum of AC power output circuit, dc source output circuit and communication power supply output circuit break-makeContactor jcn (jc1l, jc1n to jc8l, jc8n of AC power output circuit as shown in Figure 2, dc source output electricityJc1+, jc1- to jc8+, the jc8- on road, and jc9+, jc9- of communication power supply output circuit), described micro vacuum contactorThe main coil of jcn is connected with two Switching Power Supplies (dy1, dy2), and the main contacts of micro vacuum contactor jcn is connected toOn AC power output circuit, dc source output circuit and communication power supply output circuit, described micro vacuum contactor jcnThe limit switch kw that is arranged on high-voltage switch gear cabinet equipment 2 quick operating valve with one also by a control button ann of main coil be connected.
Limit switch kw in the present embodiment be by leader cable and control cable connection two Switching Power Supplies (dy1,Dy2) and control button ann between, leader cable and control cable form an anti-explosion cable.
The operation principle of described door opening electrical outage interlocked control mechanism is: by two Switching Power Supplies (dy1, dy2) be micro-Type vacuum contactor jcn provides the working power of dc24v, in normal work, presses control button ann, micro vacuum contactsThe main coil of device jcn obtains electric, its main contacts combination, you can realizes AC power output circuit, dc source output circuit and leads toLetter power output circuit out-put supply；When opening the quick operating valve of high-voltage switch gear cabinet equipment 2, limit switch kw action, will be miniatureThe coil of vacuum contactor jcn is disconnected with the connection of the working power of dc24v, the now main contacts of micro vacuum contactor jcnDisconnect, you can realize the mesh that AC power output circuit, dc source output circuit and communication power supply output circuit are stopped power supply's.
Preferably, the limit switch kw in the present embodiment could alternatively be existing other in flameproof high-voltage switch cubicleDifferent modes, the quick operating valve interlocking mechanism of different structure.
Preferably, the flame-proof type that the enabling in the present embodiment exports before power-off interlocked control mechanism is used not only for is highOn the quick operating valve interlocking switch kw compressing switch in cabinet, or other different modes, the device of different structure, and need in other down-holesIt is equally applicable on the equipment carrying out quick operating valve power-off interlocking.
For the ease of entering to the output of AC power output circuit, dc source output circuit and communication power supply output circuitRow monitoring, present invention additionally comprises main coil to be connected to AC power output circuit, dc source output circuit and communication power supply defeatedGo out the output loop dead electricity alarm relay kn on circuit, the monitoring being connected with output loop dead electricity alarm relay kn main contactsDevice 20, and the status indicator lamp hn in parallel with output loop dead electricity alarm relay kn main coil.
Refering to shown in Fig. 1 and Fig. 4, heretofore described accumulator power source apparatus are two, including the first storage batterySource device b1, the second accumulator power source apparatus b2, two accumulator power source apparatus one main one standby, each other standby mode run (such asShown in Fig. 1 11 and 12)；Described first accumulator power source apparatus b1 and the second accumulator power source apparatus b2 is concurrently accessed flame proofIn type feeder equipment 10, and put into operation when different between the first accumulator power source apparatus b1 and the second accumulator power source apparatus b2, oneMain one is standby, and redundancy uses.It is designed with the control device that its automatic or manual controllable puts into operation between b1 and b2.
As shown in figure 4, the main devices abbreviated functional description of described control device is as follows: wherein, 1jc+, 1jc- are the first electric power storagePond supply unit b1 positive and negative electrode input vacuum contactor；2jc+, 2jc- are the second accumulator power source apparatus b2 positive and negative electrode inputVacuum contactor；U1, u2 are the intelligence of collection accumulator power source apparatus b1 and b2 output in flame-proof type integrated power supply feeder equipmentCan type digital voltmeter；And u1, u2 band undervoltage alarm output relay 2 is right.Monitoring voltage can be set during use and be less than a certain valueWhen this actuating of relay.U1 monitors output voltage and+the m ,-m DC bus-bar voltage of the first accumulator power source apparatus b1, its contactAccess 2# accumulator plant control loop；U2 monitors output voltage and+the m ,-m dc bus of the second accumulator power source apparatus b2Voltage, 1# accumulator plant control loop is accessed in its contact；K1, k2 be auxiliary reclay, band normally-open normally-close contact each pair；An1, an2 are respectively the control button that puts into operation manually of first and second accumulator power source apparatus b1, b2, be self-locking byButton；D1, d2 are the reverse-filling diode preventing mutual discharge and recharge between two sets of accumulator power source apparatus；Dc24v is that 1jc, 2jc are trueThe working power of empty contactor coil；The operation principle of whole control device is:
Under normal circumstances, first and second accumulator power source apparatus b1, b2 all access flame-proof type integration electricity by cableIn the feeder equipment of source；But, first and second which set of accumulator power source apparatus b1, b2 are actual to put into operation, then transported by userAdministrative staff voluntarily selects, namely a main standby mode is run.Any a set of storage of first and second accumulator power source apparatus b1, b2Cell apparatus all can use as main storage battery power supply, another set of then online stand-by heat, and put into operation the first storage battery if necessarySource device b1 then presses an1 button, needs to put into the second accumulator power source apparatus b2 and then presses an2 button.
In actual motion, an1 and an2 also can press simultaneously, and operating position can be in on-position.
The situation of low-voltage in accumulator power source apparatus, and most times are to go out in the case that AC power has a power failureExisting, now accumulator power source apparatus provide back-up source for all electrical equipments.
Below so that the first accumulator power source apparatus b1 preferentially puts into operation as a example, its operation principle is described.
Press an1 locking press button, its contact 1-3 connects, dc24v electricity connected by 1jc1+ with 1jc1- vacuum contactor coilSource, 1jc+ and 1jc- major loop closes, and the first accumulator power source apparatus b1 connects with+m ,-m dc bus, the first storage batterySource device b1 puts into commencement of commercial operation, and now, u1 is responsible for monitoring the voltage of accumulator plant (namely between dc bus+m ,-mVoltage).
When the accumulator battery voltage of the first accumulator power source apparatus b1 is less than setting value, first pair of built-in relay of u1Time delay normally opened contact 11-12,13-14 action closes (delay time can adjust, 5～20 seconds), and conducting 2jc+, 2jc- vacuum connectsThe coil dc24v electric power loop of tentaculum, 2jc+, 2jc- major loop closes, and the second accumulator power source apparatus b2 accesses+m ,-m direct currentBus；Now two accumulator power source apparatus short time all access+m ,-m dc bus, due to connecing of 2# accumulator power source apparatusEnter ,+m ,-m busbar voltage recovers normal.
After 2jc+, 2jc- closure, its auxiliary contact x3-x4 is closed at, the k1 actuating of relay, and its normally-closed contact 1-3 breaksOpen, 1jc+, 1jc- coil dc24v positive pole power-off, 1jc+, 1jc- major loop disconnect, the first accumulator power source apparatus b1 exit with+The connection of m ,-m dc bus；When second couple of built-in relay normally open contact 13-14 of u1 closes, conducting indicator lamp (band ring soundFunction), indicator lamp is lighted and is sent alerting tone, notifies operations staff.
After operations staff investigates thoroughly problem, first press an2 button, reliable input the second accumulator power source apparatus, then press againLower an1 button, an1 releases self-locking, initial (disconnection) position of rebounding, and the first accumulator power source apparatus b1 safely and reliably exits fortuneOK, flame-proof type integrated power source apparatus are powered by the second accumulator power source apparatus b2.
Because the long-term parallel running of accumulator power source apparatus has an impact for service lifetime of accumulator, and safety in operation does not haveSecure；And the control device employed in the present invention in many set accumulator power source apparatus it is ensured that only a set of storage batterySource device is powered to feeder equipment, and other a few set accumulator plants are in hot stand-by duty；So substantially prolongs this oneChange the back-up source power-on time of supply unit, beneficial to user, reasonable selection batteries quantity is needed according to scene.
Refering in Fig. 5, shown in Fig. 5 a, 5b and 5c, described explosion-proof feeding device 10 also includes housing 110, located at housingWire connection cavity 120 in 110, equipment cavity 140, described interlocking switch sa in equipment cavity 120, described the first dry-type transformer1t, two uninterrupted power sources (du1, du2) and two HF switch DC converters (tg1, tg2) all in equipment cavity 140,Two described Switching Power Supplies (dy1, dy2) are also in equipment cavity 140；And in the housing 110 corresponding with equipment cavity 120On be additionally provided with for radiating first foam metal radiating and explosion isolation device 160 and the second foam metal radiating and explosion isolation device170.
Preferably, the first described foam metal radiating and explosion isolation device 160 and the radiating of the second foam metal and flame proofDevice 170 is irregular controllability slug type foam metal.
The first foam metal radiating described in the present embodiment and explosion isolation device 160 and the radiating of the second foam metal and flame proofThe structure of device 170 is consistent, all includes the flange 1810 being provided with through hole being installed on housing 110, outside flange 1810Outer foam metal level 1820, and the internal foam metal level 1830 located at flange 1810 inner side, and described outside bubbleAperture (ppi value) on foam metal level 1820 is more than the aperture on internal foam metal level 1830.
Preferably, flange 1810, outer foam metal level 1820 and internal foam metal level 1830 are the knot of integral typeStructure.
Described outer foam metal level 1820 is identical with the material of internal foam metal level 1830, is nichrome, copper,Iron, aluminum and aluminum alloy mateial, (can be in sintering machine-shaping foam metal time control using the controlled Penetration ration of the type foam metalMake size and the void density of its hole) and stress buffer characteristic, realize radiating and the function of flame proof.
Preferably, the foam metal radiating described in the present embodiment and explosion isolation device can also be used for various i class Flameproof boxesTake up an official post place to be used of what is the need for.
Preferably, being additionally provided with outside the housing 110 described in the present embodiment for preventing coal dust from entering inside housing 110Metal or nonmetallic Air Filter.
Described internal foam metal level 1830 is used for absorbing the heat of internal cavity, and outer foam metal level 1820 is usedIn the heat that sheds, due to internal foam metal level 1830 aperture (the foam metal density of small-bore is high, heat load big it is easy toHeat absorption) less than outer foam metal level 1820 aperture (wide-aperture foam metal increased the convection current with extraneous air),Internal foam metal level 1830 quickly can absorb heat, and realizes quick heat radiating by outer foam metal level 1820.
By test data, using the radiating mode of said structure, compared with existing common radiating, can be by caseTemperature reduces by 8 to 10 °, greatly improves the operational reliability of device in case, extends service life.
For the ease of overhauling to the explosion-proof feeding device 10 of the present invention, described equipment cavity 140 and wire connection cavity 120Between joint face connected using explosion-proof type binding post 130, and manhole 180 is additionally provided with housing 110.
Preferably, the present embodiment can also be provided with fixing and protection cable metal or non-in the outside of whole Flameproof boxMetal grooved cable box, and this cable box can be welded or fixed using bolt.
Preferably, employed in the present embodiment outer foam metal level 1820 and internal foam metal level 1830 materialCan also be the heat conduction and heat radiation mode of foam metal+highly heat-conductive material composition, in the bubble of the internal high density small porosity of Flameproof boxFoam metal is as heat sink, by the highly heat-conductive material fitting tightly with this foam metal outside with Flameproof box and fixingLow density and big pore gap foam metal on this highly heat-conductive material connects, low density and big pore gap foam metal as Flameproof box outsideHeat abstractor.
And above-mentioned highly heat-conductive material can be iron, ferroalloy, copper, copper alloy, aluminium, aluminium alloy, nickel, nickeliferous alloyThe phase-change material that material and paraffin or graphite etc. are made.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not subject to above-described embodimentLimit, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplify,All should be equivalent substitute mode, be included within protection scope of the present invention.