CN102842955A - Emergency power supply system - Google Patents
Emergency power supply system Download PDFInfo
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- CN102842955A CN102842955A CN201210336762XA CN201210336762A CN102842955A CN 102842955 A CN102842955 A CN 102842955A CN 201210336762X A CN201210336762X A CN 201210336762XA CN 201210336762 A CN201210336762 A CN 201210336762A CN 102842955 A CN102842955 A CN 102842955A
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Abstract
The invention provides an emergency power supply system. The system comprises a battery pack, a monitor, a first controller and a frequency converter, wherein when alternating current (AC) information acquired by the monitor indicates AC supply stops, the monitor triggers the first controller which controls the battery pack to output a direct current (DC); and the frequency converter inverts the DC into AC and sends the AC to a working pump in an oil pump unit. In the emergency power supply system, by acquiring the AC supply information, when the AC supply stops, the battery pack is started to output the DC which is inverted into the AC and then the AC is sent to the working pump in the oil pump unit, thus providing a safe emergency power guarantee for large diffusions of blast furnace tops, hot blast heaters and other important blast-furnace equipment, and solving the technical problem that human safety and production safety are harmed seriously because a blast furnace system is in a dangerous state even explodes, which is caused by the factor that required emergency powers cannot be provided for the blast furnace system in time when the AC supply stops in the prior art.
Description
Technical field
The application relates to the electric supply field, particularly a kind of emergency power supply supply system.
Background technology
When Blast Furnace Throat Ventilation Valve quits work because of power failure at blast furnace system, need open fast, rapidly emission coal gas; But afterwards diffuse valve and can't timely fast open because the civil power stop supplies causes providing the oil pump of power to work indirectly for diffusing valve this moment; Make coal gas flow backward to the high pressure blower pipeline; Make high pressure blower and pipeline thereof in the hole down, even explode, have a strong impact on the safety of work and production.
Simultaneously, each valve of blast funnace hot blast stove needs fast shut-off or closes when blast furnace system quits work because of power failure; But each valve of hot-blast stove can't in time cut off or close afterwards because the civil power stop supplies causes for each valve of hot-blast stove cuts off or closes the oil pump that power is provided indirectly and can't work this moment; Make coal gas flow backward in combustion fan and the pipeline thereof; Make combustion fan and pipeline thereof in the hole down, even blast, have a strong impact on the person and the safety of producing.
Therefore,, need a kind of emergency power supply supply option badly, for blast furnace system provides its required emergency electric power supply when the civil power stop supplies for guaranteeing the safe operation of blast furnace system.
Summary of the invention
The application's technical problem to be solved provides a kind of emergency power supply supply system; Can't be in time its required emergency electric power supply be provided for blast furnace system when the civil power stop supplies in order to solve in the prior art; Cause blast furnace system in the hole; Even explode, have a strong impact on the technical problem of personal safety and production safety.
The application provides a kind of emergency power supply supply system, and said system comprises battery pack, monitor, first controller and frequency converter, wherein:
When the commercial power supply information of obtaining when said monitor showed the civil power stop supplies, said monitor triggered said first controller, controls said battery pack output DC by said first controller;
Said frequency converter is an alternating current with said dc inverter, and is sent to the working barrel in the oil pump group.
Said system, preferably, said oil pump group comprises at least one table oil pump, and has only a table oil pump to be in running status.
Said system preferably, also comprises charger, wherein:
When said commercial power supply information showed commercial power supply, said charger was that said battery pack is charged.
Said system preferably, also comprises second controller and is connected starter, wherein:
When showing civil power, said commercial power supply information begins supply just often; Said monitor triggers said second controller and the said starter that is connected; Control said battery pack by said second controller and stop output DC, and by the working barrel in said connection starter conducting civil power input system and the said oil pump group.
Said system preferably, also comprises the 3rd controller and is connected switch, wherein:
When said commercial power supply information showed the civil power stop supplies, said monitor triggered the switch that is connected that said the 3rd controller conducting is connected in working barrel and said frequency converter in the said oil pump group;
When said commercial power supply information showed that civil power begins to supply, said monitor triggered said the 3rd controller and breaks off said connection switch.
Said system preferably, also comprises first timer, wherein:
When said commercial power supply information shows the civil power stop supplies; Said monitor triggers the current interruption duration of said first timer record; When duration was preset in said current interruption duration arrival first, said first timer triggered the said connection switch of said the 3rd controller conducting.
Said system preferably, also comprises second timer, wherein:
When said commercial power supply information shows that civil power begins to supply; Said monitor triggers the switch opening time of the said connection switch of said second timer record; When said switch arrived the second preset duration opening time, said second timer triggered the working barrel in said civil power input system of said connection starter conducting and the said oil pump group.
Can know that by such scheme a kind of emergency power supply supply system that the application provides is through obtaining commercial power supply information; When the civil power stop supplies; Start the battery pack output DC, and become alternating current to send to the working barrel in the oil pump group this dc inverter, guarantee for important blast-furnace equipments such as the blast furnace furnace roof diffuses greatly, hot-blast stove provide safe emergency electric power; Avoided in time its required emergency electric power supply to be provided when the civil power stop supplies in the prior art for blast furnace system; Cause blast furnace system in the hole, even explode, have a strong impact on the technical problem of personal safety and production safety.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the application embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the application, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of emergency power supply supply system embodiment one that Fig. 1 provides for the application;
Another structural representation of a kind of emergency power supply supply system embodiment one that Fig. 2 provides for the application;
The another structural representation of a kind of emergency power supply supply system embodiment one that Fig. 3 provides for the application;
The structural representation of a kind of emergency power supply supply system embodiment two that Fig. 4 provides for the application;
Another structural representation of a kind of emergency power supply supply system embodiment two that Fig. 5 provides for the application;
Another structural representation of a kind of emergency power supply supply system embodiment two that Fig. 6 provides for the application;
The structural representation of a kind of emergency power supply supply system embodiment three that Fig. 7 provides for the application;
Another structural representation of a kind of emergency power supply supply system embodiment three that Fig. 8 provides for the application;
Another structural representation of a kind of emergency power supply supply system embodiment three that Fig. 9 provides for the application;
Another structural representation of a kind of emergency power supply supply system embodiment three that Figure 10 provides for the application;
Another structural representation of a kind of emergency power supply supply system embodiment three that Figure 11 provides for the application;
The structural representation of a kind of emergency power supply supply system embodiment four that Figure 12 provides for the application;
Another structural representation of a kind of emergency power supply supply system embodiment four that Figure 13 provides for the application;
Another structural representation of a kind of emergency power supply supply system embodiment four that Figure 14 provides for the application.
Embodiment
To combine the accompanying drawing among the application embodiment below, the technical scheme among the application embodiment is carried out clear, intactly description, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the application's protection.
At present, blast furnace electric power system narrow sense comprise following several system: furnace roof power devices system (it comprises the generous diffusing valve power supply of furnace roof), hot-blast furnace equipment electric power system (it comprises combustion fan), blowing device electric power system (it comprises blast furnace blower), ore deposit groove power devices system, casthouse equipment electric power system or the like.And the blast furnace electric power system is said in broad sense and is also comprised recirculated water power devices system, Tula power devices system, coal powder injection power devices system, raw material agglomerating plant system or the like; The emergency power supply supply system that the application provides can be applied to furnace roof power devices system (comprising the generous diffusing valve power supply of furnace roof and other valve power supply of furnace roof), hot-blast furnace equipment electric power system (in comprise each valve of hot-blast stove; Do not comprise high-tension combustion fan); When solution blast furnace electric power system has a power failure suddenly; Can open furnace roof rapidly and diffuse valve (purpose is to cut off coal gas) and fast shut-off greatly, close the hot-blast stove by-pass valve control, avoid the substantial equipment security incident, cause blast furnace system in the hole; Even explode, have a strong impact on the technical problem of personal safety and production safety.
With reference to figure 1, it illustrates the structural representation of a kind of emergency power supply supply system embodiment one that the application provides, and said system comprises battery pack 101, monitor 102, first controller 103 and frequency converter 104, wherein:
When the commercial power supply information of obtaining when said monitor 102 showed the civil power stop supplies, said monitor 102 triggered said first controller 103, by said battery pack 101 output DCs of said first controller, 103 controls;
Said frequency converter 104 is an alternating current with said dc inverter, and is sent to the working barrel in the oil pump group.
Wherein, said battery pack 101 is connected with said frequency converter 104 with said first controller 103 respectively, contains the direct current energy of deposit in advance.
Need to prove that the civil power stop supplies is meant: the civil power input system can't provide electric power for working barrel.
Preferably, with reference to figure 2, it shows another structural representation of the system embodiment one that the application provides, and wherein, said system also comprises charger 105, wherein:
Show commercial power supply just often in said commercial power supply information, said charger 105 charges for said battery pack 101.
Need to prove that at commercial power supply just often, said charger 105 is connected with said battery pack 101 with the civil power input system respectively, and said battery pack 101 is charged; When the civil power stop supplies, 105 of said chargers are connected with said battery pack 101, said battery pack 101 are not charged, and promptly said charger 105 quits work.
Wherein, Said monitor 102 is connected with said first controller 103, and the connection status between the working barrel in civil power input system and the oil pump group is monitored, and obtains commercial power supply information; According to said commercial power supply information; Can judge whether stop supplies of civil power, when said commercial power supply information shows the civil power stop supplies, trigger said first controller 103.
Preferably, when the commercial power supply information of obtaining at said monitor 102 showed that civil power is stopped power supply, said monitor 102 sent fault alarm signal when triggering said first controller 103, to the staff warning information is provided with this.
Wherein, Said frequency converter 104 is connected with said battery pack 101 as the core apparatus of the application's system embodiment one, and when the working barrel to said oil pump group carries out the emergency power supply supply; Be connected with the working barrel in the said oil pump group; Direct current to said battery pack output carries out SPWM modulation control, exports the alternating current of good AC wave shape, and supply load equipment is the stable electric energy that continues of oil pump group.
Preferably, said oil pump group comprises at least one table oil pump, and has only a table oil pump to be in running status as working barrel.Preferably, the power of said oil pump can be the oil pump between 2.2～400KW.
Need to prove that said oil pump group generally comprises two table oil pumps in practical application; Be respectively main oil pump and emergency bearing oil pump, when power being provided, have only a table oil pump to be in running status as working barrel to blast furnace system; Promptly when main oil pump can operate as normal, emergency bearing oil pump was in the off-duty state, only when main oil pump can't operate as normal; Emergency bearing oil pump just can be activated, and replacing main oil pump is that blast furnace system provides power.
With reference to figure 3, it shows the structural representation of a kind of emergency power supply supply system embodiment one in practical application that the application provides, and said system comprises battery pack 101, monitor 102, first controller 103, frequency converter 104 and charger 105, wherein:
Said civil power input system is connected with master (1#) oil pump through K switch M1, and is connected with subsequent use (2#) oil pump through K switch M2;
In said civil power input system power supply just often, said charger 105 is connected with said civil power input system, and said battery pack 101 is charged;
Said monitor 102 is connected with K switch M2 with said K switch M1 respectively; K switch M1 and K switch M2 are respectively the control contactor of main oil pump and emergency bearing oil pump use civil power input system; When the civil power input system can't provide electric power, trigger said K switch M1 and K switch M2 all is in off-state, said monitor 102 obtains commercial power supply information; This moment, the civil power input system stopped the supply of electric power to oil pump; Be that said commercial power supply information shows civil power stop supplies (the civil power input system can't provide electric power, and K switch M1 and K switch M2 all are in off-state), at this moment; Said monitor 102 triggers coupled first controller 103 that connects, by the coupled battery pack that connects 101 output DCs of said first controller, 103 controls;
Said frequency converter 104 is connected with emergency bearing oil pump with main oil pump respectively through single-pole double-throw switch (SPDT) (double end knife switch); And be connected with said battery pack 101; And when main oil pump or emergency bearing oil pump being carried out the emergency power supply supply, be connected with main oil pump or emergency bearing oil pump, the direct current of said battery pack 101 outputs is carried out SPWM modulation control; Export the alternating current of good AC wave shape, supply load equipment is the stable electric energy that continues of main oil pump or emergency bearing oil pump.
Can know that by such scheme a kind of emergency power supply supply system embodiment one that the application provides is through obtaining commercial power supply information; When the civil power stop supplies, start the battery pack output DC, and become alternating current to send to the working barrel in the oil pump group this dc inverter; For providing safe emergency electric power, important blast-furnace equipments such as the blast furnace furnace roof diffuses greatly, hot-blast stove guarantee;, avoided can't in time its required emergency electric power supply being provided when the civil power stop supplies in the prior art for blast furnace system, cause blast furnace system in the hole; Even explode, have a strong impact on the technical problem of personal safety and production safety.
With reference to figure 4, it shows the structural representation of a kind of emergency power supply supply system embodiment two that the application provides, and said system also comprises second controller 106 and be connected starter 107, wherein:
When said commercial power supply information shows that civil power begins to supply; Said monitor 102 triggers said second controller 106 and the said starter 107 that is connected; Stop output DC by the said battery pack 101 of said second controller 106 controls, and by the working barrel in said connection starter 107 conducting civil power input systems and the said oil pump group.
Wherein, Said second controller 106 is connected with said battery pack 101 with said monitor 102 respectively; When said commercial power supply information shows that civil power begins to supply; Said monitor 102 triggers said second controller 106, stops output DC by the said battery pack 101 of said second controller 106 controls.
Preferably, said first controller 103 is arranged on the same control unit, wherein with said second controller 106:
When said commercial power supply information showed the civil power stop supplies, said control unit was controlled said battery pack 101 output DCs; When said control unit shows that in said commercial power supply information civil power begins to supply, control said battery pack 101 and stop output DC.
Wherein, when said monitor 102 triggers said second controller 106, trigger said connection starter 107, by the working barrel in said civil power input system of said connection starter 107 conductings and the said oil pump group.
Preferably, with reference to figure 5, it shows another structural representation of a kind of emergency power supply supply system embodiment two that the application provides, wherein:
Said connection starter 107 respectively with said civil power input system and said oil pump group in working barrel be connected;
Said monitor 102 is connected with the said starter 107 that is connected.
Wherein, Said connection starter 107 is as the control contactor between the working barrel of said civil power input system and said oil pump group; Specifically can be actuating switch, when said actuating switch can't provide electric power for the working barrel in the said oil pump group in said civil power input system, said actuating switch broke off; Said monitor 102 obtains the information that said actuating switch breaks off; Be that commercial power supply information is the civil power stop supplies, at this moment, said monitor 102 triggers said battery pack 101 output DCs of said first controller, 103 controls;
When said civil power input system can begin to supply power; Said monitor 102 obtains the information that said civil power input system can begin to supply power; Be that said commercial power supply information shows that civil power begins supply, at this moment, said monitor 102 triggers the said battery pack of said second controller 106 controls and stops output DC; And to trigger said connection starter 107 be said actuating switch, the working barrel in said civil power input system of conducting and the said oil pump group.
Preferably, said oil pump group comprises at least one table oil pump, and has only a table oil pump to be in starting state.
Need to prove that said oil pump group generally comprises two table oil pumps in practical application; Be respectively main oil pump and emergency bearing oil pump, when power being provided, have only a table oil pump to be in running status blast furnace system; Promptly when main oil pump can operate as normal, emergency bearing oil pump was in the off-duty state, only when main oil pump can't operate as normal; Emergency bearing oil pump just can be activated operation, and replacing main oil pump is that blast furnace system provides power.Wherein, Main oil pump and emergency bearing oil pump do not have specific active and standby branch; In actual production process, can transform each other according to the production needs, promptly emergency bearing oil pump can be used as main oil pump and changes starting state by halted state; As working barrel power is provided, main oil pump can be used as emergency bearing oil pump and converts halted state into by starting state.
With reference to figure 6, it shows another structural representation of a kind of emergency power supply supply system embodiment two that the application provides, and said system also comprises charger 105, wherein:
Said civil power input system is connected with master (1#) oil pump through K switch M1, and is connected with subsequent use (2#) oil pump through K switch M2;
In said civil power input system power supply just often, said charger 105 is connected with said civil power input system, and said battery pack 101 is charged;
Said monitor 102 is connected with K switch M2 with said K switch M1 respectively; K switch M1 and K switch M2 are respectively the control contactor of main oil pump and emergency bearing oil pump use civil power input system; When the civil power input system can't provide electric power, trigger said K switch M1 and K switch M2 all is in off-state, said monitor 102 obtains commercial power supply information; This moment, the civil power input system stopped the supply of electric power to working barrel in the oil pump group; Be that said commercial power supply information shows civil power stop supplies (the civil power input system can't provide electric power, and K switch M1 and K switch M2 all are in off-state), at this moment; Said monitor 102 triggers coupled first controller 103 that connects, by the coupled battery pack that connects 101 output DCs of said first controller, 103 controls;
Need to prove; When said civil power input system can't provide electric power; The generation of said civil power input information can have following implementation: at first detect line voltage through the voltage detecting sample circuit of isolating, obtain the testing result of line voltage data, be sent to processor CPU after said line voltage data are changed through AD; According to judge whether stop supplies of civil power through the testing result after the AD conversion, generate commercial power supply information by this CPU.
When the civil power input system can provide electric power; Said monitor 102 obtains commercial power supply information, and this moment, the civil power input system began the supply of electric power to oil pump, and promptly said commercial power supply information shows that civil power begins supply; At this moment; Said monitor 102 triggers the said battery pack of said second controller 106 controls and stops output DC, and triggers said connection starter, promptly said K switch M1 and K switch M2 one of them; Working barrel in conducting civil power input system and the said oil pump group, i.e. main oil pump or emergency bearing oil pump thus;
Said frequency converter 104 is connected with emergency bearing oil pump with main oil pump respectively through single-pole double-throw switch (SPDT) (double end knife switch); And be connected with said battery pack 101; And when main oil pump or emergency bearing oil pump being carried out the emergency power supply supply; Be connected with main oil pump or emergency bearing oil pump; Direct current to said battery pack 101 outputs carries out SPWM modulation control, exports the alternating current (with the same frequency that provides of civil power input system, the alternating current of voltage) of good AC wave shape, and supply load equipment is the stable electric energy that continues of main oil pump or emergency bearing oil pump.
Wherein, said K switch M1 be main oil pump with the civil power input system between be connected starter, said K switch M2 be emergency bearing oil pump with the civil power input system between be connected starter.
Need to prove; When said commercial power supply information shows the civil power stop supplies; Said emergency power supply is when working barrel provides electric power, and being connected between said civil power input system and the working barrel broken off, and promptly said K switch M1 and K switch M2 all are in off-state.
Can know that by such scheme a kind of emergency power supply supply system embodiment two that the application provides is through obtaining commercial power supply information; When the civil power stop supplies, start the battery pack output DC, and become alternating current to send to the working barrel in the oil pump group this dc inverter; For providing safe emergency electric power, important blast-furnace equipments such as the blast furnace furnace roof diffuses greatly, hot-blast stove guarantee; And when civil power began to supply, the control battery pack stopped output DC, being connected of the working barrel in conducting civil power input system and the oil pump group; Avoided in time its required emergency electric power supply to be provided when the civil power stop supplies in the prior art for blast furnace system; Cause blast furnace system in the hole, even explode, have a strong impact on the technical problem of personal safety and production safety.
With reference to figure 7, it shows the structural representation of a kind of emergency power supply supply system embodiment three that the application provides, and said system also comprises the 3rd controller 108 and be connected switch 109, wherein:
When said commercial power supply information showed the civil power stop supplies, what said monitor 102 triggered that 108 conductings of said the 3rd controller are connected in working barrel and said frequency converter 104 in the said oil pump group was connected switch 109;
When said commercial power supply information showed that civil power begins to supply, said monitor 102 triggered said the 3rd controller 108 and breaks off said connection switch 109.
Wherein, said the 3rd controller 108 is connected with the said switch 109 that is connected with said monitor 102 respectively, and said connection switch is connected in working barrel and said frequency converter 104 in the said oil pump group.
Wherein, said connection switch 109 in civil power input system power supply just often is in off-state, thus, prevents that the civil power input system from directly importing emergency power supply with civil power.When said commercial power supply information shows the civil power stop supplies; When said monitor 102 triggers said battery pack 101 output DCs of said first controller 103 controls; Trigger the said connection switch 109 of said the 3rd controller 108 conductings; With the link conducting between the working barrel in said frequency converter 104 and the said oil pump group; Make said frequency converter 104 that direct current is carried out the alternating current that inversion is converted to and transfer to the working barrel in the said oil pump group; When promptly being in off-state between the working barrel in confirming said civil power input system and said oil pump group, can conducting connection switch 109, being connected between the working barrel in the said frequency converter 104 of conducting and the said oil pump group.
With reference to figure 8, it shows another structural representation of a kind of emergency power supply supply system embodiment three that the application provides, and said system also comprises second controller 106 and be connected starter 107, wherein:
When said commercial power supply information shows that civil power begins to supply; Said monitor 102 triggers said second controller 106 and the said starter 107 that is connected; Stop output DC by the said battery pack 101 of said second controller 106 controls, and by the working barrel in said connection starter 107 conducting civil power input systems and the said oil pump group.
Need to prove; When said civil power input system can be supplied power; When the said battery pack of said second controller 106 controls of said monitor 102 triggerings stops output DC, trigger said the 3rd controller 108 and break off said connection switch 109, when avoiding the working barrel of said civil power input system in the oil pump group to supply power; The civil power input system is sent civil power into the output of emergency power supply frequency converter, causes frequency converter to damage and battery pack such as burns at problem.
Need to prove; When said commercial power supply information shows the civil power stop supplies; Said emergency power supply is when working barrel provides electric power; Being connected between said civil power input system and the working barrel broken off, and prevents that emergency power supply to civil power input system misdelivery electricity, avoiding existing the person and device security hidden danger.
Can know that by such scheme a kind of emergency power supply supply system embodiment three that the application provides is through being provided with the connection switch between the working barrel in frequency converter and oil pump group; When the civil power stop supplies, conducting connects switch, triggers said battery pack output DC; And then alternating current is provided for the working barrel in the oil pump group; And when civil power begins to supply, break off connecting switch, the working barrel in conducting civil power input system and the oil pump group is connected again; Thereby avoid when the civil power input system is the working barrel power supply in the oil pump group; Send the situation of electricity for the emergency power supply supply system, the frequency converter of having avoided sending electricity to cause thus damages and battery pack such as burns at security incident, for the normal operation of blast furnace system provides safer guarantee.
Preferably, with reference to figure 9, it shows another structural representation of a kind of emergency power supply supply system embodiment three that the application provides, and said system also comprises first timer 110, wherein:
When said commercial power supply information shows the civil power stop supplies; Said monitor 102 triggers the current interruption duration of said first timer, 110 records; When duration was preset in said current interruption duration arrival first, said first timer 110 triggered the said connection switch 109 of said the 3rd controller 108 conductings.
Wherein, Preferably, said first timer 110 is connected with said the 3rd controller 108 with said monitor 102 respectively, in the power supply of civil power input system just often; Said connection switch 109 is in off-state; When said commercial power supply information shows the civil power stop supplies, when said monitor 102 triggers said first controller 103, trigger the current interruption duration of said first timer, 110 records; When duration was preset in said current interruption duration arrival first, said first timer 110 triggered the said connection switch 109 of said the 3rd controller 108 conductings.
With reference to Figure 10, it shows another structural representation of a kind of emergency power supply supply system embodiment three that the application provides, and said system also comprises second controller 106 and be connected starter 107, wherein:
When said commercial power supply information shows that civil power begins to supply; Said monitor 102 triggers said second controller 106 and the said starter 107 that is connected; Stop output DC by the said battery pack 101 of said second controller 106 controls, and by the working barrel in said connection starter 107 conducting civil power input systems and the said oil pump group.
Can know by such scheme; A kind of emergency power supply supply system embodiment three that the application provides; Through at the civil power stop supplies time time-delay first preset duration; Conducting connects switch again, thus further avoided when the civil power input system is the working barrel power supply in the oil pump group, send the situation of electricity for the emergency power supply supply system; The frequency converter of having avoided sending electricity to cause thus damages and battery pack such as burns at security incident, for the normal operation of blast furnace system provides more firm safety guarantee.
Preferably, with reference to Figure 11, it shows another structural representation of a kind of emergency power supply supply system embodiment three that the application provides, and said system also comprises second timer 111, wherein:
When said commercial power supply information shows that civil power begins to supply; Said monitor 102 triggers said the 3rd controller 108 and breaks off said connection switch 109; And trigger said second timer 111 record switch opening time; When said switch arrived the second preset duration opening time, said second timer 111 triggered being connected of working barrel in the said civil power input system of said connection starter 107 conductings and the said oil pump group.
Wherein, Preferably, said second timer 111 is connected with the said starter 107 that is connected with said monitor 102 respectively, when the power supply of civil power input system stops; Said connection switch 109 is in conducting state, and the emergency power supply supply system is that the working barrel in the oil pump group provides electric power.When said commercial power supply information shows that civil power begins to supply; When said monitor 102 triggers said the 3rd controller 108 and breaks off said connection switch 109; Trigger said second timer 111 record switch opening time; When said switch arrived the second preset duration opening time, said second timer 111 triggered being connected of working barrel in the said civil power input system of said connection starter 107 conductings and the said oil pump group.
A kind of emergency power supply supply system that the application provides; Through when civil power begins to supply; Break off to connect switch, the time-delay second preset duration, conducting civil power input system is connected with working barrel in the oil pump group again; Thus further to have avoided in the civil power input system be working barrel when power supply in the oil pump group; Send the situation of electricity for the emergency power supply supply system, the frequency converter of having avoided sending electricity to cause thus damages and battery pack such as burns at security incident, for the normal operation of blast furnace system provides more firm safety guarantee.
With reference to Figure 12; It shows the structural representation of a kind of emergency power supply supply system embodiment four that the application provides; Said system comprises that battery pack 101, monitor 102, first controller 103, frequency converter 104, charger 105, second controller 106, first connect starter 1071, second and connect starter 1072, the 3rd controller 108, connect switch 109, first timer 110 and second timer 111, wherein:
Said civil power input system is connected with master (1#) oil pump through K switch M1, and is connected with subsequent use (2#) oil pump through K switch M2;
In said civil power input system power supply just often, said charger 105 is connected with said battery pack 101 with said civil power input system respectively, and said battery pack 101 is charged;
Said monitor 102 is connected with K switch M2 with said K switch M1 respectively; K switch M1 and K switch M2 are respectively said first and are connected starter 1071 and are connected starter 1072 with said second; Wherein, The said first connection starter 1071 is the control contactor of main oil pump and civil power input system, and the said second connection starter 1072 is the control contactor of emergency bearing oil pump and civil power input system.When the civil power input system can't provide electric power, trigger said K switch M1 and K switch M2 all is in off-state, said monitor 102 obtains commercial power supply information; This moment, the civil power input system stopped the supply of electric power to oil pump, and promptly said commercial power supply information shows civil power stop supplies (the civil power input system can't provide electric power, and K switch M1 and K switch M2 all are in off-state); At this moment; Said monitor 102 triggers coupled first controller 103 that connects, and by the coupled battery pack that connects 101 output DCs of said first controller, 103 controls, and triggers the current interruption duration of said first timer, 110 records; When duration is preset in said current interruption duration arrival first; Said first timer 110 triggers the said connection switch 109 of said the 3rd controller 108 conductings, and promptly only after said K switch M1 and K switch M2 all break off the first preset duration, said connection switch 109 is just understood conducting; Prevent the emergency power supply supply system with electric power transfer to civil power input system, form and send;
When the civil power input system can provide electric power; Said monitor 102 obtains commercial power supply information, and this moment, the civil power input system began the supply of electric power to oil pump, and promptly said commercial power supply information shows that civil power begins supply; At this moment; Said monitor 102 triggers the said battery pack 101 of said second controller 106 controls and stops output, and when triggering said the 3rd controller 108 and break off said connection switch 109, triggers 111 record switch opening times of said second timer; When said switch arrives the second preset duration opening time; Said second timer 111 trigger the said said K switch M1 of connection starter 107 conductings and K switch M2 one of them, the working barrel in conducting civil power input system and the said oil pump group, i.e. main oil pump or emergency bearing oil pump thus; Prevent that the civil power input system from directly transmitting electric power to the emergency power supply supply system, causes the situation of emergency power supply supply system device damage;
Said frequency converter 104 links to each other with the said switch 109 that is connected with said battery pack 101 respectively, and said connection switch 109 is connected with emergency bearing oil pump with main oil pump respectively through single-pole double-throw switch (SPDT) (double end knife switch).
Need to prove; Said K switch M1 and K switch M2 form interlocking loop with said the connection between the switch; Avoid when the civil power input system is the working barrel power supply in the oil pump group, for the emergency power supply supply system is sent the situation of electricity and the emergency power supply supply system is sent electricity to the civil power input system situation.
Wherein, Preferably; Said monitor 102, said first controller 103, second controller 106, the 3rd controller 108 can be integrated on the same controller chip; This controller chip is the control core of whole emergency power supply supply system, is to be the digitlization dedicated control system of core with MCU (or 16 little processing DSP chips of high speed).And first timer 110 is specially very first time relay, and said second timer 111 is specially second time relay, and very first time relay, second time relay and controller chip can be on control boards.
With reference to Figure 13; It shows another structural representation of a kind of emergency power supply supply system embodiment four that the application provides; Said system also comprises manual automatic controller; Said manual automatic controller is connected with said monitor-interface with said master controller respectively, and wherein, said connection switch 109 is specially K switch M3.
With reference to Figure 14, it shows the logical AND control line interface sketch map of the application embodiment shown in figure 13 four, wherein:
With automatic startup 1# oil pump is example:
The automatically actuated condition of emergency power supply supply system EPS during the civil power stop supplies:
1. controller detects civil power and stops
2. the former civil power of equipment loop interlocking signal allows to start
EPS starts the detailed process that provides electric power to support for oil pump:
When the unexpected stop supplies of civil power, if at that time when selecting the 1# oil pump to be working barrel, the double end knife switch switches to 1# pump position, sees Figure 13:
1. master controller detects commercial power supply and stops (specifically being embodied as: the voltage detecting sample circuit through isolating detects line voltage, after the AD conversion, gives controller CPU, makes analysis and judgement by CPU according to testing result).
2. the former civil power of equipment loop interlocking signal allows to start:
When the unexpected stop supplies of civil power; The city electric contactor KM1 dead electricity of 1# oil pump, controller civil power test point K4 is closed, and city electric contactor KM1's is normally closed closed; It is electric to make that very first time relay K T1 coil gets, and very first time relay K T1 coil circuit is connected through following contact:
The normally closed point of 24V positive source DC2～24V+ → normally closed point → KM2 of KT1 coil → KM1 → 24V power cathode DC2～24V-;
Two timing closings of KT1 are often made war, and (can set arbitrarily by delay time through Δ t time-delay for KT1; The control loop of guaranteeing city electric contactor KM1 and KM2 all is disconnected) the back closure; It is electric to make that auxiliary relay K1 coil and contactor KM3 coil get, and auxiliary relay K1 coil circuit is connected through following contact:
24V positive source DC2～24V+ → automatic/hand change over switch SA → K1 coil → KT1 timing closing is often made war → normally closed some K4 of controller city electro-detection → 24V power cathode DC2～24V-
This moment, the K1 closure (I2) of often making war allowed the automatic start-up control signal input controller of EPS, and promptly the former civil power of equipment loop interlocking signal allows to start EPS, and this moment, EPS possessed entry condition.
Contactor KM3 coil circuit is connected through following contact:
24V positive source DC1～24V+ → KM3 coil → KT1 timing closing is often made war → KM3 control output point O1 → 24V power cathode DC1～24V-;
The closed output major loop (seeing Figure 13) of connecting of KM3 main contacts this moment; The auxiliary normal closed control loop of connecting controller and frequency converter of making war of KM3; EPS begins automatic startup, and simultaneously the auxiliary normally closed point of KM3 breaks off, and makes second time relay KT2 coil losing electricity; The coil circuit of city electric contactor KM1, KM2 is broken off in its two timing closings normal battle respectively, send the situation of electricity for former mains-supplied circuit when avoiding the emergency power supply operation.
Need to prove:
DC1-24V+ and DC1-24V-connection jaws draw the lead-out terminal from the DC1-24V DC power supply;
DC2-24V+ and DC2-24V-connection jaws draw the lead-out terminal from the DC2-24V DC power supply;
Often make war X211 and X212 connection jaws of second time relay KT2 timing closing need seal in the electric contactor KM1 coil circuit loop, city, plays the interlocking effect; During the EPS operation, break off contactor KM1 coil circuit, prevent to send to the former mains-supplied circuit of 1# oil pump;
Often make war X213 and X214 connection jaws of second time relay KT2 timing closing need seal in the electric contactor KM2 coil circuit loop, city, plays the interlocking effect, during the EPS operation, breaks off contactor KM2 coil circuit, prevents to send to the former mains-supplied circuit of 2# oil pump;
X203 is connected with the normally closed point of city electric contactor KM1, KM2 with the X204 connection jaws, is that KT1 could get electric after guaranteeing that city electric contactor KM1, KM2 break off, and then K1 could get electricly, and EPS just allows startup.
When said commercial power supply information showed the civil power stop supplies, shown in figure 14, said K switch M1 and said K switch M2 broke off; Be after KM1 and KM2 discharge simultaneously, KM3 can adhesive after the long time-delay of first Preset Time, after the KM3 adhesive; Its normally closed point breaks off the KT2 coil circuit, the KT2 coil losing electricity, and its timing closing is often made war and is broken off the control loop of KM1 and KM2; Make KM3 in pickup time, do not allow KM1, KM2 closure, guarantee in the emergency power supply supply system operating time; KM1, KM2 break off, and avoid emergency power supply supply system output misdelivery electrical network.
Need to prove that the emergency power supply supply system that the application provides can be applied to existing emergency power supply control system, promptly is used in combination in commercial production with existing emergency power supply control system.
Can know that by such scheme a kind of emergency power supply supply system embodiment four that the application provides is through obtaining commercial power supply information; When the civil power stop supplies, start the battery pack output DC, and become alternating current to send to the working barrel in the oil pump group this dc inverter; For providing safe emergency electric power, important blast-furnace equipments such as the blast furnace furnace roof diffuses greatly, hot-blast stove guarantee;, avoided can't in time its required emergency electric power supply being provided when the civil power stop supplies in the prior art for blast furnace system, cause blast furnace system in the hole; Even explode, have a strong impact on the technical problem of personal safety and production safety.
Simultaneously, a kind of emergency power supply supply system embodiment four that the application provides is through being provided with the connection switch between the working barrel in frequency converter and oil pump group; When the civil power stop supplies, conducting connects switch, triggers said battery pack output DC; And then alternating current is provided for the working barrel in the oil pump group; And when civil power begins to supply, break off connecting switch, the working barrel in conducting civil power input system and the oil pump group is connected again; Thereby avoid when the civil power input system is the working barrel power supply in the oil pump group; Send the situation of electricity for the emergency power supply supply system, the frequency converter of having avoided sending electricity to cause thus damages or battery pack such as burns at security incident, for the normal operation of blast furnace system provides safer guarantee.
Simultaneously, a kind of emergency power supply supply system embodiment four that the application provides is through at the civil power stop supplies time time-delay first preset duration; Conducting connects switch again, and when civil power begins to supply, breaks off the connection switch; The time-delay second preset duration; Being connected of working barrel in conducting civil power input system and the oil pump group again, thus further avoided when the civil power input system is the working barrel power supply in the oil pump group, send the situation of electricity for the emergency power supply supply system; The frequency converter of having avoided sending electricity to cause thus damages and battery pack such as burns at security incident, for the normal operation of blast furnace system provides more firm safety guarantee.
Need to prove that each embodiment in this specification all adopts the mode of going forward one by one to describe, what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
At last; Also need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.
More than a kind of emergency power supply supply system that the application provided has been carried out detailed introduction; Used concrete example among this paper the application's principle and execution mode are set forth, the explanation of above embodiment just is used to help to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to the application's thought, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the application.
Claims (7)
1. an emergency power supply supply system is characterized in that, said system comprises battery pack, monitor, first controller and frequency converter, wherein:
When the commercial power supply information of obtaining when said monitor showed the civil power stop supplies, said monitor triggered said first controller, controls said battery pack output DC by said first controller;
Said frequency converter is an alternating current with said dc inverter, and is sent to the working barrel in the oil pump group.
2. system according to claim 1 is characterized in that, said oil pump group comprises at least one table oil pump, and has only a table oil pump to be in running status as working barrel.
3. system according to claim 1 is characterized in that, also comprises charger, wherein:
Show commercial power supply just often in said commercial power supply information, said charger is that said battery pack is charged.
4. system according to claim 1 is characterized in that, also comprises second controller and is connected starter, wherein:
When said commercial power supply information shows that civil power begins to supply; Said monitor triggers said second controller and the said starter that is connected; Control said battery pack by said second controller and stop output DC, and by the working barrel in said connection starter conducting civil power input system and the said oil pump group.
5. according to claim 1 or 4 described systems, it is characterized in that, also comprise the 3rd controller and be connected switch, wherein:
When said commercial power supply information showed the civil power stop supplies, said monitor triggered the switch that is connected that said the 3rd controller conducting is connected in working barrel and said frequency converter in the said oil pump group;
When said commercial power supply information showed that civil power begins to supply, said monitor triggered said the 3rd controller and breaks off said connection switch.
6. system according to claim 5 is characterized in that, also comprises first timer, wherein:
When said commercial power supply information shows the civil power stop supplies; Said monitor triggers the current interruption duration of said first timer record; When duration was preset in said current interruption duration arrival first, said first timer triggered the said connection switch of said the 3rd controller conducting.
7. system according to claim 5 is characterized in that, also comprises second timer, wherein:
When said commercial power supply information shows that civil power begins to supply; Said monitor triggers the switch opening time of the said connection switch of said second timer record; When said switch arrived the second preset duration opening time, said second timer triggered the working barrel in said civil power input system of said connection starter conducting and the said oil pump group.
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| CN201210336762.XA CN102842955B (en) | 2012-09-12 | 2012-09-12 | Emergency power supply system |
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| CN201210336762.XA CN102842955B (en) | 2012-09-12 | 2012-09-12 | Emergency power supply system |
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| CN104333123A (en) * | 2014-11-18 | 2015-02-04 | 成都博盛信息技术有限公司 | Access control equipment of access control system |
| CN111384768A (en) * | 2020-03-27 | 2020-07-07 | 东风商用车有限公司 | Electric oil pump energy supply system of engine |
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| CN102842955B (en) | 2015-07-08 |
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