CN202997676U - Emergency power supply device - Google Patents

Emergency power supply device Download PDF

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Publication number
CN202997676U
CN202997676U CN 201220465113 CN201220465113U CN202997676U CN 202997676 U CN202997676 U CN 202997676U CN 201220465113 CN201220465113 CN 201220465113 CN 201220465113 U CN201220465113 U CN 201220465113U CN 202997676 U CN202997676 U CN 202997676U
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China
Prior art keywords
power supply
oil pump
controller
battery pack
civil power
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Expired - Fee Related
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CN 201220465113
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Chinese (zh)
Inventor
徐爱萍
房盼盼
林晓辉
郎达慧
李庆睦
张守运
徐峰
李闽
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Laiwu Iron and Steel Group Co Ltd
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Laiwu Iron and Steel Group Co Ltd
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Priority to CN 201220465113 priority Critical patent/CN202997676U/en
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Abstract

The utility model provides an emergency power supply device comprising a battery pack, a monitoring device, a first controller, and a frequency converter. The monitoring device is connected with the first controller, and can be used to acquire the commercial power supply information, and can be used to trigger the first controller, when the commercial power supply is cut off according to the commercial power supply information. The first controller is connected with the battery pack, and can be used to control the battery pack to output the direct current. The frequency converter is connected with the battery pack, and the direct current output by the battery pack can be converted into the alternating current in an inverted manner, and the alternating current can be sent to a working pump of an oil pump group. By acquiring the commercial power supply information, the emergency power supply device can be used to start the battery pack to output the direct current, when the commercial power supply is cut off, and the direct current can be converted into the alternating current in an inverted manner, and then the alternating current can be sent to the working pump of the oil pump group, therefore the safe emergency power guarantee can be provided for the blast furnace top large diffusion, hot blast stove and other important blast furnace devices.

Description

A kind of emergency power supply feeding mechanism
Technical field
The application relates to electric supply field, particularly a kind of emergency power supply feeding mechanism.
Background technology
When Blast Furnace Throat Ventilation Valve quits work because of power failure at blast furnace system, need to open fast, rapid emission coal gas, but cause for diffusion valve indirectly provide the oil pump of power can't working due to the civil power stop supplies this moment, and diffusion valve can't be opened timely fast afterwards, make coal gas flow backward to the high pressure blower pipeline, make high pressure blower and pipeline thereof in the hole under, even blast has a strong impact on the safety of work and production.
Simultaneously, each valve of blast funnace hot blast stove is when blast furnace system quits work because of power failure, need fast shut-off or close, but cause for hot-blast stove each valve cut off or close oil pump that power indirectly is provided can't work due to the civil power stop supplies this moment, and each valve of hot-blast stove can't in time cut off or close afterwards, make coal gas flow backward in combustion fan and pipeline thereof, make combustion fan and pipeline thereof in the hole under, even blast, the safety that has a strong impact on the person and produce.
Therefore, for guaranteeing the safe operation of blast furnace system, need a kind of emergency power supply supply option badly, its required emergency electric power supply is provided when the civil power stop supplies for blast furnace system.
The utility model content
The application's technical problem to be solved is to provide a kind of emergency power supply feeding mechanism, can't be in time provide its required emergency electric power supply when the civil power stop supplies for blast furnace system in order to solve in 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 feeding mechanism, and described system comprises battery pack, monitor, the first controller, frequency converter, the 3rd controller and connecting valve, wherein:
Described monitor is connected with described the first controller, obtains commercial power supply information, when described commercial power supply information shows the civil power stop supplies, triggers described the first controller;
Described the first controller is connected with described battery pack, controls described battery pack output DC;
Described frequency converter is connected with described battery pack, and the dc inverter that described battery pack is exported is alternating current, and is sent to the working barrel in the oil pump group;
Described connecting valve respectively with described oil pump group in working barrel be connected with described frequency converter;
Described the 3rd controller is connected with described connecting valve with described monitor respectively, when described commercial power supply information shows the civil power stop supplies, triggered by described monitor, the described connecting valve of conducting, and show that in described commercial power supply information civil power begins for seasonable, triggered by described monitor, disconnect described connecting valve.
Said apparatus, preferably, described oil pump group comprises at least one oil pump, and only has an oil pump to be in running status.
Said system preferably, also comprises charger, wherein:
Described charger is connected with described battery pack, is that described battery pack is charged when described commercial power supply information shows that commercial power supply is normal.
Said system preferably, also comprises second controller and is connected starter, wherein:
Described second controller is connected with described monitor, when described commercial power supply information shows that civil power begins to be triggered by described monitor for seasonable, controls described battery pack and stops output DC;
Described connection starter is connected with described monitor, when described commercial power supply information shows that civil power begins to be triggered the working barrel in conducting civil power input system and described oil pump group by described monitor for seasonable.
Said system preferably, also comprises the first timer, wherein:
Described the first timer is connected with described the 3rd controller with described monitor respectively, when described commercial power supply information shows the civil power stop supplies, triggered by described monitor, record current interruption duration, when described current interruption duration arrives the first default duration, trigger described the 3rd described connecting valve of controller conducting.
Said system preferably, also comprises the second timer, wherein:
Described the second timer is connected starter and is connected with being connected with described monitor respectively, when showing civil power, described commercial power supply information begins for seasonable, triggered by described monitor, record the switch opening time of described connecting valve, when described switch arrives the second default duration opening time, trigger the working barrel in the described civil power input system of described connection starter conducting and described oil pump group.
by such scheme as can be known, a kind of emergency power supply feeding mechanism that the application provides, by commercial power supply information is obtained, when the civil power stop supplies, start the battery pack output DC, and become alternating current to send to working barrel in the oil pump group this dc inverter, for blast furnace roof diffuses greatly, the important blast-furnace equipment such as hot-blast stove provides safe emergency electric power to guarantee, avoided in the prior art can't be in time providing when the civil power stop supplies for blast furnace system its required emergency electric power supply, cause blast furnace system in the hole, even blast, 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 in the embodiment of the present application, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only some embodiment of the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of a kind of emergency power supply feeding mechanism embodiment one that Fig. 1 provides for the application;
Another structural representation of a kind of emergency power supply feeding mechanism embodiment one that Fig. 2 provides for the application;
The another structural representation of a kind of emergency power supply feeding mechanism embodiment one that Fig. 3 provides for the application;
The structural representation of a kind of emergency power supply feeding mechanism embodiment two that Fig. 4 provides for the application;
Another structural representation of a kind of emergency power supply feeding mechanism embodiment two that Fig. 5 provides for the application;
Another structural representation of a kind of emergency power supply feeding mechanism embodiment two that Fig. 6 provides for the application;
The structural representation of a kind of emergency power supply feeding mechanism embodiment three that Fig. 7 provides for the application;
Another structural representation of a kind of emergency power supply feeding mechanism embodiment three that Fig. 8 provides for the application;
Another structural representation of a kind of emergency power supply feeding mechanism embodiment three that Fig. 9 provides for the application;
Another structural representation of a kind of emergency power supply feeding mechanism embodiment three that Figure 10 provides for the application;
Another structural representation of a kind of emergency power supply feeding mechanism embodiment three that Figure 11 provides for the application;
The structural representation of a kind of emergency power supply feeding mechanism embodiment four that Figure 12 provides for the application;
Another structural representation of a kind of emergency power supply feeding mechanism embodiment four that Figure 13 provides for the application;
Another structural representation of a kind of emergency power supply feeding mechanism embodiment four that Figure 14 provides for the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Based on the embodiment in the application, those of ordinary skills are not making the every other embodiment that obtains 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 top equipment electric power system (it comprises the generous loose 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 etc.and the blast furnace electric power system is said in broad sense and is also comprised the circulating water equipment electric power system, Tula power devices system, coal powder injection power devices system, raw material agglomerating plant system etc., the emergency power supply feeding mechanism that the application provides can be applied to furnace top equipment electric power system (comprising the generous loose valve power supply of furnace roof and other valve power supply of furnace roof), the 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 rapidly the large diffusion valve of furnace roof (purpose is to cut off coal gas) and fast shut-off, close the hot-blast stove by-pass valve control, avoid the substantial equipment security incident, cause blast furnace system in the hole, even blast, 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 feeding mechanism embodiment one that the application provides, and described device comprises battery pack 101, monitor 102, the first controller 103 and frequency converter 104, wherein:
Described monitor 102 is connected with described the first controller 103, obtains commercial power supply information, when described commercial power supply information shows the civil power stop supplies, triggers described the first controller 103;
Described the first controller 103 is connected with described battery pack 101, controls described battery pack 101 output DCs;
Described frequency converter 104 is connected with described battery pack 101, and the dc inverter that described battery pack 101 is exported is alternating current, and is sent to the working barrel in the oil pump group.
Be, when the commercial power supply information of obtaining when described monitor 102 showed the civil power stop supplies, described monitor 102 triggered described the first controllers 103, controlled described battery pack 101 output DCs by described the first controller 103;
Described frequency converter 104 is alternating current with described dc inverter, and is sent to the working barrel in the oil pump group.
Wherein, described battery pack 101 is connected with described frequency converter 104 with described the first controller 103 respectively, contains the direct current energy of deposit in advance.
Need to prove, the civil power stop supplies refers to: 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 device embodiment one that the application provides, and wherein, described device also comprises charger 105, wherein:
When described commercial power supply information showed that commercial power supply is normal, described charger 105 charged for described battery pack 101.
Need to prove, when commercial power supply was normal, described charger 105 was connected with described battery pack 101 with the civil power input system respectively, and described battery pack 101 is charged; When the civil power stop supplies, 105 of described chargers are connected with described battery pack 101, described battery pack 101 are not charged, and namely described charger 105 quits work.
Wherein, described monitor 102 is connected with described the first controller 103, connection status between working barrel in civil power input system and oil pump group is monitored, obtain commercial power supply information, according to described commercial power supply information, can judge whether stop supplies of civil power, when described commercial power supply information shows the civil power stop supplies, trigger described the first controller 103.
Preferably, when the commercial power supply information of obtaining at described monitor 102 showed that civil power is stopped power supply, described monitor 102 sent fault alarm signal when triggering described the first controller 103, provide warning information with this to the staff.
Wherein, described frequency converter 104 is as the core of the application's device embodiment one, be connected with described battery pack 101, and carry out emergency power supply for seasonable at the working barrel to described oil pump group, be connected with the working barrel in described oil pump group, direct current to described battery pack output carries out the 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, described oil pump group comprises at least one oil pump, and only has an oil pump to be in running status as working barrel.Preferably, the power of described oil pump can be the oil pump between 2.2~400KW.
Need to prove, described oil pump group in actual applications, generally comprise two oil pumps, be respectively main oil pump and emergency bearing oil pump, when providing power to blast furnace system, only have an oil pump to be in running status as working barrel, namely when main oil pump can work, emergency bearing oil pump was in the off-duty state, only when main oil pump can't work, emergency bearing oil pump just can be activated, and replaces main oil pump to provide power for blast furnace system.
With reference to figure 3, it shows a kind of emergency power supply feeding mechanism embodiment one structural representation in actual applications that the application provides, and described device comprises battery pack 101, monitor 102, the first controller 103, frequency converter 104 and charger 105, wherein:
Described charger 105 is connected with described battery pack 101, is that described battery pack 101 is charged when described commercial power supply information shows that commercial power supply is normal.
Wherein, described civil power input system is connected with master (1#) oil pump by K switch M1, and is connected with standby (2#) oil pump by K switch M2;
When described civil power input system power supply was normal, described charger 105 was connected with described civil power input system, and described battery pack 101 is charged;
described monitor 102 is connected with K switch M2 with described 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 described K switch M1 and K switch M2 all is in off-state, described 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 described commercial power supply information shows that (the civil power input system can't provide electric power in the civil power stop supplies, and K switch M1 and K switch M2 all are in off-state), at this moment, described monitor 102 triggers the first coupled controller 103, control coupled battery pack 101 output DCs by described the first controller 103,
Described frequency converter 104 is connected with emergency bearing oil pump with main oil pump respectively by single-pole double-throw switch (SPDT) (double-end knife switch), and be connected with described battery pack 101, and main oil pump or emergency bearing oil pump are being carried out emergency power supply for seasonable, be connected with main oil pump or emergency bearing oil pump, direct current to described battery pack 101 outputs carries out the 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.
by such scheme as can be known, a kind of emergency power supply feeding mechanism embodiment one that the application provides, by commercial power supply information is obtained, when the civil power stop supplies, start the battery pack output DC, and become alternating current to send to working barrel in the oil pump group this dc inverter, for blast furnace roof diffuses greatly, the important blast-furnace equipment such as hot-blast stove provides safe emergency electric power to guarantee, , avoided in the prior art can't be in time providing when the civil power stop supplies for blast furnace system its required emergency electric power supply, cause blast furnace system in the hole, even blast, 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 feeding mechanism embodiment two that the application provides, and described device also comprises second controller 106 and be connected starter 107, wherein:
Described second controller 106 is connected with described battery pack 101 with described monitor 102 respectively, begins for seasonable when described commercial power supply information shows civil power, is triggered by described monitor 102, controls described battery pack 101 and stops output DC;
Described connection starter 107 is connected with described monitor 102, begins for seasonable when described commercial power supply information shows civil power, is triggered the working barrel in conducting civil power input system and described oil pump group by described monitor 102.
Be, when showing civil power, described commercial power supply information begins for seasonable, described monitor 102 triggers described second controller 106 and is connected connection starter 107, control described battery pack 101 by described second controller 106 and stop output DC, and by the working barrel in described connection starter 107 conducting civil power input systems and described oil pump group.
Wherein, described second controller 106 is connected with described battery pack 101 with described monitor 102 respectively, show that in described commercial power supply information civil power begins for seasonable, described monitor 102 triggers described second controller 106, controls described battery pack 101 by described second controller 106 and stops output DC.
Preferably, described the first controller 103 and described second controller 106 are arranged on same control unit, wherein:
When described commercial power supply information showed the civil power stop supplies, described control unit was controlled described battery pack 101 output DCs; Described control unit shows that in described commercial power supply information civil power begins to control described battery pack 101 and stop output DC for seasonable.
Wherein, when described monitor 102 triggers described second controller 106, trigger described connection starter 107, by the working barrel in the described connection starter 107 described civil power input systems of conducting and described oil pump group.
Preferably, with reference to figure 5, it shows another structural representation of a kind of emergency power supply feeding mechanism embodiment two that the application provides, wherein:
Described connection starter 107 is connected with working barrel in described civil power input system and described oil pump group respectively;
Described monitor 102 is connected with the described starter 107 that is connected.
Wherein, described connection starter 107 is as the control contactor between the working barrel of described civil power input system and described oil pump group, be specifically as follows actuating switch, when described actuating switch can't provide electric power for the working barrel in described oil pump group in described civil power input system, described actuating switch disconnects, described monitor 102 obtains the information that described actuating switch disconnects, be that commercial power supply information is the civil power stop supplies, at this moment, described monitor 102 triggers described the first controller 103 and controls described battery pack 101 output DCs;
When described civil power input system can begin to power, described monitor 102 obtains the information that described civil power input system can begin to power, be that described commercial power supply information shows that civil power begins supply, at this moment, described monitor 102 triggers the described second controller 106 described battery pack of control and stops output DC, and to trigger described connection starter 107 be described actuating switch, the working barrel in the described civil power input system of conducting and described oil pump group.
Preferably, described oil pump group comprises at least one oil pump, and only has an oil pump to be in starting state.
Need to prove, described oil pump group in actual applications, generally comprise two oil pumps, be respectively main oil pump and emergency bearing oil pump, when providing power to blast furnace system, only have an oil pump to be in running status, namely when main oil pump can work, emergency bearing oil pump was in the off-duty state, only when main oil pump can't work, emergency bearing oil pump just can be activated operation, replaces main oil pump to provide power for blast furnace system.Wherein, what main oil pump and emergency bearing oil pump were specific not active and standby divides, in actual production process, can mutually transform according to need of production, be that emergency bearing oil pump can be used as main oil pump and changes starting state by halted state, provide power as working barrel, main oil pump can be used as emergency bearing oil pump and is converted to halted state by starting state.
With reference to figure 6, it shows another structural representation of a kind of emergency power supply feeding mechanism embodiment two that the application provides, and described device also comprises charger 105, wherein:
Described charger 105 is connected with described battery pack 101, is that described battery pack 101 is charged when described commercial power supply information shows that commercial power supply is normal.
Wherein, described civil power input system is connected with master (1#) oil pump by K switch M1, and is connected with standby (2#) oil pump by K switch M2;
When described civil power input system power supply was normal, described charger 105 was connected with described civil power input system, and described battery pack 101 is charged;
described monitor 102 is connected with K switch M2 with described 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 described K switch M1 and K switch M2 all is in off-state, described 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 described commercial power supply information shows that (the civil power input system can't provide electric power in the civil power stop supplies, and K switch M1 and K switch M2 all are in off-state), at this moment, described monitor 102 triggers the first coupled controller 103, control coupled battery pack 101 output DCs by described the first controller 103,
Need to prove, when described civil power input system can't provide electric power, the generation of described civil power input message can have following implementation: at first the voltage detecting sample circuit by isolation detects line voltage, obtain the testing result of line voltage data, after being changed through AD, described line voltage data are sent to processor CPU, according to judge whether stop supplies of civil power through the testing result after AD conversion, generate commercial power supply information by this CPU.
When the civil power input system can provide electric power, described monitor 102 obtains commercial power supply information, this moment, the civil power input system began the supply of electric power to oil pump, be that described commercial power supply information shows that civil power begins supply, at this moment, described monitor 102 triggers the described second controller 106 described battery pack of control and stops output DC, and trigger described connection starter, be described K switch M1 and K switch M2 one of them, working barrel in conducting civil power input system and described oil pump group, i.e. main oil pump or emergency bearing oil pump thus;
Described frequency converter 104 is connected with emergency bearing oil pump with main oil pump respectively by single-pole double-throw switch (SPDT) (double-end knife switch), and be connected with described battery pack 101, and main oil pump or emergency bearing oil pump are being carried out emergency power supply for seasonable, be connected with main oil pump or emergency bearing oil pump, direct current to described battery pack 101 outputs carries out the SPWM modulation control, the alternating current (with the same frequency that provides of civil power input system, the alternating current of voltage) of good AC wave shape is provided, and supply load equipment is the stable electric energy that continues of main oil pump or emergency bearing oil pump.
Wherein, described K switch M1 be main oil pump with the civil power input system between be connected starter, described K switch M2 be emergency bearing oil pump with the civil power input system between be connected starter.
Need to prove, when described commercial power supply information shows the civil power stop supplies, when described emergency power supply provided electric power to working barrel, being connected between described civil power input system and working barrel disconnected, and namely described K switch M1 and K switch M2 all are in off-state.
by such scheme as can be known, a kind of emergency power supply feeding mechanism embodiment two that the application provides, by commercial power supply information is obtained, when the civil power stop supplies, start the battery pack output DC, and become alternating current to send to working barrel in the oil pump group this dc inverter, for blast furnace roof diffuses greatly, the important blast-furnace equipment such as hot-blast stove provides safe emergency electric power to guarantee, and begin for seasonable at civil power, control battery pack and stop output DC, being connected of working barrel in conducting civil power input system and oil pump group, avoided in the prior art can't be in time providing when the civil power stop supplies for blast furnace system its required emergency electric power supply, cause blast furnace system in the hole, even blast, 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 feeding mechanism embodiment three that the application provides, and described device also comprises the 3rd controller 108 and connecting valve 109, wherein:
Described connecting valve 109 respectively with described oil pump group in working barrel be connected with described frequency converter 104;
Described the 3rd controller 108 is connected with described connecting valve 109 with described monitor 102 respectively, when described commercial power supply information shows the civil power stop supplies, triggered by described monitor 102, the described connecting valve 109 of conducting, and show that in described commercial power supply information civil power begins for seasonable, triggered by described monitor 102, disconnect described connecting valve 109.
Be, when described commercial power supply information showed the civil power stop supplies, described monitor 102 triggered described the 3rd controller 108 conductings and is connected in working barrel in described oil pump group and the connecting valve 109 of described frequency converter 104;
Begin for seasonable when described commercial power supply information shows civil power, described monitor 102 triggers described the 3rd controller 108 and disconnects described connecting valve 109.
Wherein, described the 3rd controller 108 is connected with described connecting valve 109 with described monitor 102 respectively, and described connecting valve is connected in working barrel and described frequency converter 104 in described oil pump group.
Wherein, described connecting valve 109 is in off-state when civil power input system power supply is normal, thus, prevents that the civil power input system from directly inputting emergency power supply with civil power.when described commercial power supply information shows the civil power stop supplies, when described monitor 102 triggers described the first controller 103 described battery pack 101 output DC of control, trigger described the 3rd controller 108 described connecting valves 109 of conducting, with the link conducting between the working barrel in described frequency converter 104 and described oil pump group, make described frequency converter 104 that direct current is carried out alternating current that inversion is converted to and transfer to working barrel in described oil pump group, when namely being in off-state between the working barrel in determining described civil power input system and described oil pump group, can conducting connecting valve 109, being connected between the working barrel in the described frequency converter 104 of conducting and described oil pump group.
With reference to figure 8, it shows another structural representation of a kind of emergency power supply feeding mechanism embodiment three that the application provides, and described device also comprises second controller 106 and be connected starter 107, wherein:
Described second controller 106 is connected with described battery pack 101 with described monitor 102 respectively, begins for seasonable when described commercial power supply information shows civil power, is triggered by described monitor 102, controls described battery pack 101 and stops output DC;
Described connection starter 107 is connected with described monitor 102, begins for seasonable when described commercial power supply information shows civil power, is triggered the working barrel in conducting civil power input system and described oil pump group by described monitor 102.
Need to prove, when described civil power input system can be powered, when the described monitor 102 described second controllers 106 described battery pack of control of triggering stop output DC, trigger described the 3rd controller 108 and disconnect described connecting valve 109, when avoiding described civil power input system to power to the working barrel in the oil pump group, the civil power input system is sent into civil power the output of emergency power supply frequency converter, causes frequency converter to damage and battery pack such as burns at the problem.
Need to prove, when described commercial power supply information shows the civil power stop supplies, when described emergency power supply provides electric power to working barrel, being connected between described civil power input system and working barrel disconnects, prevent that emergency power supply is electric to the misdelivery of civil power input system, avoid existing the person and device security hidden danger.
by such scheme as can be known, a kind of emergency power supply feeding mechanism embodiment three that the application provides, by between the working barrel in frequency converter and oil pump group, connecting valve being set, when the civil power stop supplies, the conducting connecting valve, trigger described battery pack output DC, and then provide alternating current for the working barrel in the oil pump group, and begin for seasonable at civil power, disconnect switch, working barrel in conducting civil power input system and oil pump group is connected again, thereby avoiding in the civil power input system is working barrel when power supply in the oil pump group, for the emergency power supply feeding mechanism falls the situation of power transmission, avoided thus frequency converter that power transmission may cause to damage and battery pack such as burns at the 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 feeding mechanism embodiment three that the application provides, and described device also comprises the first timer 110, wherein:
When described commercial power supply information shows the civil power stop supplies, described monitor 102 triggers described the first timer 110 and records current interruption duration, when described current interruption duration arrived the first default duration, described the first timer 110 triggered described the 3rd controller 108 described connecting valves 109 of conducting.
Wherein, preferably, described the first timer 110 is connected with described the 3rd controller 108 with described monitor 102 respectively, when the power supply of civil power input system is normal, described connecting valve 109 is in off-state, when described commercial power supply information shows the civil power stop supplies, when described monitor 102 triggers described the first controller 103, trigger described the first timer 110 and record current interruption duration, when described current interruption duration arrived the first default duration, described the first timer 110 triggered described the 3rd controller 108 described connecting valves 109 of conducting.
With reference to Figure 10, it shows another structural representation of a kind of emergency power supply feeding mechanism embodiment three that the application provides, and described device also comprises second controller 106 and be connected starter 107, wherein:
Described second controller 106 is connected with described battery pack 101 with described monitor 102 respectively, begins for seasonable when described commercial power supply information shows civil power, is triggered by described monitor 102, controls described battery pack 101 and stops output DC;
Described connection starter 107 is connected with described monitor 102, begins for seasonable when described commercial power supply information shows civil power, is triggered the working barrel in conducting civil power input system and described oil pump group by described monitor 102.
By such scheme as can be known, a kind of emergency power supply supply system device embodiment three that the application provides, by at the default duration of civil power stop supplies time time-delay first, conducting connecting valve again, further having avoided thus in the civil power input system is working barrel when power supply in the oil pump group, for emergency power supply supply system device falls the situation of power transmission, avoided thus frequency converter that power transmission may cause to damage and battery pack such as burns at the 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 device embodiment three that the application provides, and described system and device also comprises the second timer 111, wherein:
When showing civil power, described commercial power supply information begins for seasonable, described monitor 102 triggers described the 3rd controller 108 and disconnects described connecting valve 109, and trigger described the second timer 111 and record switch opening time, when described switch arrived the second default duration opening time, described the second timer 111 triggered being connected of working barrel in the described connection starter 107 described civil power input systems of conducting and described oil pump group.
Wherein, preferably, described the second timer 111 is connected starter 107 and is connected with being connected with described monitor 102 respectively, when the power supply of civil power input system stops, described connecting valve 109 is in conducting state, and the emergency power supply feeding mechanism provides electric power for the working barrel in the oil pump group.Show that in described commercial power supply information civil power begins for seasonable, when described monitor 102 triggers described the 3rd controller 108 and disconnects described connecting valve 109, trigger described the second timer 111 and record switch opening time, when described switch arrived the second default duration opening time, described the second timer 111 triggered being connected of working barrel in the described connection starter 107 described civil power input systems of conducting and described oil pump group.
A kind of emergency power supply feeding mechanism that the application provides, by beginning at civil power for seasonable, disconnect switch, the default duration of time-delay second, conducting civil power input system is connected with working barrel in the oil pump group again, further having avoided thus in the civil power input system is working barrel when power supply in the oil pump group, for the emergency power supply feeding mechanism falls the situation of power transmission, avoided thus frequency converter that power transmission may cause to damage and battery pack such as burns at the 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 feeding mechanism embodiment four that the application provides, described device comprises that battery pack 101, monitor 102, the first controller 103, frequency converter 104, charger 105, second controller 106, first connect starter 1071, second and connect starter 1072, the 3rd controller 108, connecting valve 109, the first timer 110 and the second timer 111, wherein:
Described civil power input system is connected with master (1#) oil pump by K switch M1, and is connected with standby (2#) oil pump by K switch M2;
When described civil power input system power supply was normal, described charger 105 was connected with described battery pack 101 with described civil power input system respectively, and described battery pack 101 is charged;
Described monitor 102 is connected with K switch M2 with described K switch M1 respectively, K switch M1 is connected described first and connects starter 1071 and be connected the second connection starter 1072 with K switch M2, wherein, described the first connection starter 1071 is the control contactor of main oil pump and civil power input system, and described the 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 described K switch M1 and K switch M2 all is in off-state, described 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 described commercial power supply information shows that (the civil power input system can't provide electric power in the civil power stop supplies, and K switch M1 and K switch M2 all are in off-state), at this moment, described monitor 102 triggers the first coupled controller 103, control coupled battery pack 101 output DCs by described the first controller 103, and trigger described the first timer 110 and record current interruption duration, when described current interruption duration arrives the first default duration, described the first timer 110 triggers described the 3rd controller 108 described connecting valves 109 of conducting, namely only after described K switch M1 and K switch M2 all disconnect the first default duration, the just meeting conducting of described connecting valve 109, prevent the emergency power supply feeding mechanism with electric power transfer to the civil power input system, form power transmission,
when the civil power input system can provide electric power, described monitor 102 obtains commercial power supply information, this moment, the civil power input system began the supply of electric power to oil pump, be that described commercial power supply information shows that civil power begins supply, at this moment, described monitor 102 triggers the described second controller 106 described battery pack 101 of control and stops output, and when triggering described the 3rd controller 108 and disconnect described connecting valve 109, trigger described the second timer 111 and record switch opening time, when described switch arrives the second default duration opening time, described the second timer 111 trigger the described connection starter 107 described K switch M1 of conducting and K switch M2 one of them, working barrel in conducting civil power input system and described oil pump group thus, be main oil pump or emergency bearing oil pump, prevent that the civil power input system from directly transmitting electric power to the emergency power supply feeding mechanism, the situation that causes emergency power supply feeding mechanism device damage,
Described frequency converter 104 is connected with described connecting valve 109 with described battery pack 101 respectively, and described connecting valve 109 is connected with emergency bearing oil pump with main oil pump respectively by single-pole double-throw switch (SPDT) (double-end knife switch).
Need to prove, form interlocking loop between described K switch M1 and K switch M2 and described connecting valve, avoiding in the civil power input system is working barrel when power supply in the oil pump group, for the emergency power supply feeding mechanism falls the situation of power transmission and emergency power supply feeding mechanism, the civil power input system is fallen the situation of power transmission.
Wherein, preferably, described monitor 102, described the first controller 103, second controller 106, the 3rd controller 108 can be integrated on same controller chip, this controller chip is the control core of whole emergency power supply feeding mechanism, is take MCU(or 16 little processing DSP chips of high speed) be the digitlization dedicated control system of core.And the first timer 110 is specially very first time relay, and described the 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 feeding mechanism embodiment four that the application provides, described device also comprises manual automatic controller, described manual automatic controller is connected with described monitor-interface with described master controller respectively, wherein, described connecting valve 109 is specially K switch M3.
With reference to Figure 14, it shows the logical AND control line interface schematic diagram of the embodiment of the present application four as shown in figure 13, wherein:
Take automatic startup 1# oil pump as example:
The automatically actuated condition of emergency power supply feeding mechanism 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
Need to prove, the wiring exit I1 in emergency power supply feeding mechanism EPS represents remote manual pump on off control input; I2 represents remote auto pump start and stop input; O1 represents contactor KM3 control output end; O2 represents frequency converter on off control output.
The detailed process that provides electric power to support for oil pump is provided EPS:
For seasonable, if when selecting at that time the 1# oil pump to be working barrel, the double-end knife switching over is seen Figure 13 to 1# pump position when the civil power cut:
1. master controller detects commercial power supply and stops (specific implementation is: the voltage detecting sample circuit by isolation detects line voltage, gives controller CPU after the AD conversion, is made according to testing result by CPU and analyzes judgement).
2. the former civil power of equipment loop interlocking signal allows to start:
When the civil power cut supplies seasonable, 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, make very first time relay K T1 coil get electric, very first time relay K T1 coil circuit is connected by 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 KT1 through Δ t time-delay (but delay time Set arbitrarily, the control loop of guaranteeing city electric contactor KM1 and KM2 all is disconnected) rear closed, make auxiliary relay K1 coil and contactor KM3 coil get electric, auxiliary relay K1 coil circuit is connected by 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's electro-detection → 24V power cathode DC2~24V-
This moment, the K1 closure (I2) of often making war, allowed EPS automatically to start control signal input control device, and namely 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 by 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, the auxiliary normally closed point of KM3 disconnects simultaneously, make the second time relay KT2 coil losing electricity, two timing closing disconnects respectively the coil circuit of city electric contactor KM1, KM2 normal battle, avoids emergency power supply when operation to fall the situation of power transmission to former mains-supplied circuit.
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 the second time relay KT2 timing closing need seal in electric contactor KM1 coil circuit loop, city, plays the interlocking effect; In EPS when operation, disconnect contactor KM1 coil circuit, prevents from falling power transmission to the former mains-supplied circuit of 1# oil pump;
Often make war X213 and X214 connection jaws of the second time relay KT2 timing closing need seal in electric contactor KM2 coil circuit loop, city, plays the interlocking effect, during the EPS operation, disconnects contactor KM2 coil circuit, prevents from falling power transmission 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 after guaranteeing that city electric contactor KM1, KM2 disconnect, KT1 could get electric, and then K1 could get electricly, and EPS just allows startup.
when described commercial power supply information shows the civil power stop supplies, as shown in figure 14, described K switch M1 and described K switch M2 disconnect, be after KM1 and KM2 discharge simultaneously, KM3 can adhesive after the long time-delay of the first Preset Time, after the KM3 adhesive, its normally closed point disconnects the KT2 coil circuit, the KT2 coil losing electricity, its timing closing is often made war and is disconnected the control loop of KM1 and KM2, make KM3 in pickup time, do not allow KM1, KM2 is closed, guarantee in the emergency power supply feeding mechanism operating time, KM1, KM2 disconnects, avoid emergency power supply feeding mechanism output misdelivery electrical network.
Need to prove, the emergency power supply feeding mechanism that the application provides can be applied to existing emergency power supply control system, namely is combined with in industrial production with existing emergency power supply control system.
by such scheme as can be known, a kind of emergency power supply feeding mechanism embodiment four that the application provides, by commercial power supply information is obtained, when the civil power stop supplies, start the battery pack output DC, and become alternating current to send to working barrel in the oil pump group this dc inverter, for blast furnace roof diffuses greatly, the important blast-furnace equipment such as hot-blast stove provides safe emergency electric power to guarantee, , avoided in the prior art can't be in time providing when the civil power stop supplies for blast furnace system its required emergency electric power supply, cause blast furnace system in the hole, even blast, have a strong impact on the technical problem of personal safety and production safety.
simultaneously, a kind of emergency power supply feeding mechanism embodiment four that the application provides, by between the working barrel in frequency converter and oil pump group, connecting valve being set, when the civil power stop supplies, the conducting connecting valve, trigger described battery pack output DC, and then provide alternating current for the working barrel in the oil pump group, and begin for seasonable at civil power, disconnect switch, working barrel in conducting civil power input system and oil pump group is connected again, thereby avoiding in the civil power input system is working barrel when power supply in the oil pump group, for the emergency power supply feeding mechanism falls the situation of power transmission, avoided thus frequency converter that power transmission may cause to damage or battery pack such as burns at the security incident, for the normal operation of blast furnace system provides safer guarantee.
simultaneously, a kind of emergency power supply feeding mechanism embodiment four that the application provides, by at the default duration of civil power stop supplies time time-delay first, conducting connecting valve again, and begin for seasonable at civil power, disconnect switch, the default duration of time-delay second, working barrel in conducting civil power input system and oil pump group is connected again, further having avoided thus in the civil power input system is working barrel when power supply in the oil pump group, for the emergency power supply feeding mechanism falls the situation of power transmission, avoided thus frequency converter that power transmission may cause to damage and battery pack such as burns at the security incident, for the normal operation of blast furnace system provides more firm safety guarantee.
Need to prove, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
At last, also need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are separated with another entity or operating space, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make the process, method, article or the equipment that comprise 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 the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Above a kind of emergency power supply feeding mechanism that the application is provided is described in detail, used specific case herein the application's principle and execution mode are set forth, the explanation of above embodiment just is used for helping to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, the thought according to the application all will change in specific embodiments and applications, and in sum, this description should not be construed as the restriction to the application.

Claims (6)

1. an emergency power supply feeding mechanism, is characterized in that, described device comprises battery pack, monitor, the first controller, frequency converter, the 3rd controller and connecting valve, wherein:
Described monitor is connected with described the first controller, obtains commercial power supply information, when described commercial power supply information shows the civil power stop supplies, triggers described the first controller;
Described the first controller is connected with described battery pack, controls described battery pack output DC;
Described frequency converter is connected with described battery pack, and the dc inverter that described battery pack is exported is alternating current, and is sent to the working barrel in the oil pump group;
Described connecting valve respectively with described oil pump group in working barrel be connected with described frequency converter;
Described the 3rd controller is connected with described connecting valve with described monitor respectively, when described commercial power supply information shows the civil power stop supplies, triggered by described monitor, the described connecting valve of conducting, and show that in described commercial power supply information civil power begins for seasonable, triggered by described monitor, disconnect described connecting valve.
2. device according to claim 1, is characterized in that, described oil pump group comprises at least one oil pump, and only have an oil pump to be in running status as working barrel.
3. device according to claim 1, is characterized in that, also comprises charger, wherein:
Described charger is connected with described battery pack, is that described battery pack is charged when described commercial power supply information shows that commercial power supply is normal.
4. device according to claim 1, is characterized in that, also comprise second controller and be connected starter, wherein:
Described second controller is connected with described battery pack with described monitor respectively, when described commercial power supply information shows that civil power begins to be triggered by described monitor for seasonable, controls described battery pack and stops output DC;
Described connection starter is connected with described monitor, when described commercial power supply information shows that civil power begins to be triggered the working barrel in conducting civil power input system and described oil pump group by described monitor for seasonable.
5. device according to claim 1, is characterized in that, also comprises the first timer, wherein:
Described the first timer is connected with described the 3rd controller with described monitor respectively, when described commercial power supply information shows the civil power stop supplies, triggered by described monitor, record current interruption duration, when described current interruption duration arrives the first default duration, trigger described the 3rd described connecting valve of controller conducting.
6. device according to claim 1, is characterized in that, also comprises the second timer, wherein:
Described the second timer is connected starter and is connected with being connected with described monitor respectively, when showing civil power, described commercial power supply information begins for seasonable, triggered by described monitor, record the switch opening time of described connecting valve, when described switch arrives the second default duration opening time, trigger the working barrel in the described civil power input system of described connection starter conducting and described oil pump group.
CN 201220465113 2012-09-12 2012-09-12 Emergency power supply device Expired - Fee Related CN202997676U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102842955A (en) * 2012-09-12 2012-12-26 莱芜钢铁集团有限公司 Emergency power supply system
CN109217286A (en) * 2018-05-08 2019-01-15 北京铂阳顶荣光伏科技有限公司 A kind of safe power supply system, coevaporation formula CIGS equipment and its power control cabinet
CN109560605A (en) * 2019-01-25 2019-04-02 莱芜钢铁集团有限公司 A kind of blast furnace emergency backup power supply control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102842955A (en) * 2012-09-12 2012-12-26 莱芜钢铁集团有限公司 Emergency power supply system
CN109217286A (en) * 2018-05-08 2019-01-15 北京铂阳顶荣光伏科技有限公司 A kind of safe power supply system, coevaporation formula CIGS equipment and its power control cabinet
CN109560605A (en) * 2019-01-25 2019-04-02 莱芜钢铁集团有限公司 A kind of blast furnace emergency backup power supply control device

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