CN202076839U - Emergency power supply device for power failure of coal mine heading surfaces - Google Patents
Emergency power supply device for power failure of coal mine heading surfaces Download PDFInfo
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- CN202076839U CN202076839U CN2011201785595U CN201120178559U CN202076839U CN 202076839 U CN202076839 U CN 202076839U CN 2011201785595 U CN2011201785595 U CN 2011201785595U CN 201120178559 U CN201120178559 U CN 201120178559U CN 202076839 U CN202076839 U CN 202076839U
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- power supply
- emergency power
- contactor
- kma
- coal mine
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Abstract
The utility model discloses an emergency power supply device for power failure of coal mine heading surfaces, which belongs to the technical field of safe production equipment and is used for carrying out emergency power supply when local ventilation fans on coal mine heading surfaces have power failure. The technical scheme is that the emergency power supply device comprises current sensors, an analogue quantity input module, a programmable logic controller PLC, an emergency power supply and an emergency power contactor, wherein the current sensors are respectively connected in a main power supply loop; output ends of the current sensors are connected with a signal input end of the PLC through the analogue quantity input module; a signal output end of the PLC is connected with a control coil of the power contactor; and a switch contact of the emergency power contactor is connected in a power supply loop of a fan and the emergency power supply. The emergency power supply device has the benefit that: when the main power supply loop is switched off, the current sensors send signals into the PLC, the PLC sends a command and then the emergency power supply is started to supply power to the fan, so that the fan remains in operation when the heading surfaces have the power failure, accidents caused by gas accumulation are avoided and the production and the safety of miners are ensured.
Description
Technical field
The utility model relates to a kind of device that can emergency service when driving face in coal mine has a power failure, belongs to the Safety of Coal Mine Production equipment technical field.
Background technology
In order to guarantee coal mine downhole safety production, ensure miner's life security, driving face in coal mine gets blowing-out anything but.But in actual production, because abominable, moist supply line of colliery subsurface environment and equipment are vulnerable to push, pound the influence of unfavorable factors such as bumping, blower fan, supply line, switch etc. all might break down, can not avoid the generation of driving face in coal mine power failure blowing-out phenomenon fully, in case power failure blowing-out, working face just might accumulate gas, even the accident of blasting.The time length of this possibility and power failure blowing-out, the size of coal seam gas-bearing capacity are relevant.By statistics, driving face in coal mine blowing-out main cause is that the booster power failure causes, and eliminate gas and accumulate, and the blowing-out that has a power failure is stopped in most important measure exactly.At present, a lot of collieries also do not have the emergency service equipment when the driving face in coal mine booster is had a power failure, for improving the driving face power supply reliability, design driving face in coal mine power failure Emergency power supply unit is to guarantee that the driving face in coal mine booster is a very important problem.
The utility model content
Technical problem to be solved in the utility model provides a kind of driving face in coal mine power failure Emergency power supply unit that can carry out emergency service when driving face in coal mine has a power failure.
The technical scheme that solves the problems of the technologies described above is:
A kind of driving face in coal mine power failure Emergency power supply unit, it comprises three-phase current sensor TA1, TA2, TA3, analog quantity input module MSM, programmable controller PLC, emergency power supply EPS, emergency power supply contactor KMA, three-phase current sensor TA1, TA2, TA3 is connected on respectively in the three-phase master current supply circuit, three-phase current sensor TA1, TA2, the output of TA3 connects the signal input part of programmable controller PLC by analog quantity input module MSM, the signal output part of programmable controller PLC scoops out the control coil of urgent telegram source contactor KMA, and the switch contact KMA-1 of emergency power supply contactor KMA is connected in the current supply circuit of blower fan M and emergency power supply EPS.
Above-mentioned driving face in coal mine power failure Emergency power supply unit, described emergency power supply EPS is by rectification charging module ZLQ1, batteries BAT1, starting contactor KM, resistance R 1, capacitor C 1, three-phase inversion electric bridge NPQ1 forms, the input termination master current supply circuit of rectification charging module ZLQ1, its two positive-negative output ends connect batteries BAT1 two ends respectively, capacitor C 1, three-phase inversion electric bridge NPQ1 is connected in parallel on batteries BAT1 two ends respectively, the control coil of starting contactor KM is connected on the signal output part of programmable controller PLC, be connected on the end of batteries BAT1 after the switch contact KM-1 of starting contactor KM and resistance R 1 are in parallel, three outputs of electric bridge NPQ1 are connected with the switch contact KMA-1 of emergency power supply contactor KMA.
Above-mentioned driving face in coal mine power failure Emergency power supply unit, described blower fan is connected with the emergency power supply current supply circuit with main current supply circuit simultaneously, is provided with mechanical interlocks between main power source contactor KMB and the emergency power supply contactor KMA.
Usefulness of the present utility model is: when main current supply circuit cuts off the power supply, programmable controller sends instruction, starts emergency power supply and powers to blower fan, has guaranteed that development end is operated in that blower fan remains in operation when taking place to have a power failure, avoid gas to accumulate and cause accident, guaranteed production and miner's safety.Rational in infrastructure, the dependable performance of the utility model is for the safety of driving face in coal mine provides reliable guarantee.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Mark is as follows among the figure: blower fan M, three-phase current sensor TA1, TA2, TA3, analog quantity input module MSM, programmable controller PLC, main power source contactor KMB, emergency power supply contactor KMA, starting contactor KM, switch contact KMB-1, switch contact KMA-1, switch contact KM-1, emergency power supply EPS, rectification charging module ZLQ1, batteries BAT1, resistance R 1, capacitor C 1, electric bridge NPQ1, manual isolating switch 1QS1.
Embodiment
Show among the figure that blower fan M is simultaneously by main power source and Emergency power supply unit of the present utility model power supply.
Show among the figure that Emergency power supply unit is made up of three-phase current sensor TA1, TA2, TA3, analog quantity input module MSM, programmable controller PLC, emergency power supply EPS, emergency power supply contactor KMA.Three-phase current sensor TA1, TA2, TA3 are connected in the main current supply circuit, and its signal output part connects the signal input part of programmable controller PLC by analog quantity input module MSM, export the current signal of main current supply circuit to PLC.The signal output part of programmable controller PLC is connected with the control coil of emergency power supply contactor KMA, and the switch contact KMA-1 of emergency power supply contactor KMA is connected in the current supply circuit of blower fan M and emergency power supply EPS.
Show among the figure that emergency power supply EPS is made up of rectification charging module ZLQ1, batteries BAT1, starting contactor KM, resistance R 1, capacitor C 1, three-phase inversion electric bridge NPQ1.The input termination master current supply circuit of rectification charging module ZLQ1, its two positive-negative output ends connect batteries BAT1 two ends respectively, the control coil of starting contactor KM is connected on the end that switch contact KM-1 and the resistance R 1 of signal output part, starting contactor KM of programmable controller PLC is connected on storage battery BAT1 after in parallel, and three outputs of three-phase inversion electric bridge NPQ1 scoop out the switch contact KMA-1 of urgent telegram source contactor KMA.High tension battery group BAT1 is made up of lithium iron phosphate dynamic battery, and resistance R 1 is an electrifying startup resistance, and capacitor C 1 is the inverter bridge that filter capacitor, three-phase inversion electric bridge NPQ1 are made up of six IGBT elements.
Show among the figure that blower fan M is connected with the emergency power supply current supply circuit with main current supply circuit simultaneously, and manual isolating switch 1QS1 is arranged in main current supply circuit, provide electrical isolation for entire circuit when mainly acting on maintenance.When main power source just often, main power source contactor KMB adhesive, M provides working power for blower fan, when main power source has a power failure, emergency power supply contactor KMA adhesive for blower fan M provides the emergency power supply, is provided with mechanical interlocks between main power source contactor KMB and the emergency power supply contactor KMA.
The programmable controller PLC of an embodiment of the present utility model adopts the SIEMENS S7-200 of company, and analog quantity input module MSM adopts 6ES7231.
Operation principle of the present utility model is as follows:
Closed manually isolating switch 1QS1, entire circuit is in running order.When electrical network 660V power supply just often, by PLC control main power source contactor KMB adhesive, M provides power supply for blower fan, the blower fan M air feed that turns round, electric network source to high tension battery group BAT1 charging, is emergency power supply EPS operation stored energy by intelligent rectification charging module ZLQ1 simultaneously.When electrical network 660V power supply has a power failure, disconnect main power source contactor KMB by PLC, PLC sends work order to emergency power supply EPS, start the EPS power work, through time-delay back (1-10S), control emergency power supply contactor KMA adhesive provides power supply by emergency power supply EPS for blower fan M, blower fan M remains in operation, and guarantees continuous air feed.Be provided with mechanical interlocks between main power source contactor KMB and the emergency power supply contactor KMA, prevent that two contactors are closed simultaneously, cause electric network source and emergency power supply EPS to cause the accident to blower fan M power supply simultaneously.When the manual isolating switch 1QS1 of closure, intelligence rectification charging module ZLQ1 is by 1 couple of filter capacitor C1 of electrifying startup resistance R and high tension battery group BAT1 charging, prevent the initial charge current impact, after time-delay a period of time, PLC control electrifying startup contactor KM adhesive, intelligence rectification charging module ZLQ1 charges to filter capacitor C1 and high tension battery group BAT1 by the switch contact KM-1 of electrifying startup contactor KM, guarantees that high tension battery group BAT1 charges normal.Three-phase current sensor TA1, TA2, TA3 detect the operating current of blower fan M, are input to PLC, are used for the operating current of blower fan M is detected, and provide protection to blower fan M.
Claims (3)
1. driving face in coal mine power failure Emergency power supply unit, it is characterized in that: it comprises three-phase current sensor TA1, TA2, TA3, analog quantity input module MSM, programmable controller PLC, emergency power supply EPS, emergency power supply contactor KMA, three-phase current sensor TA1, TA2, TA3 is connected on respectively in the three-phase master current supply circuit, three-phase current sensor TA1, TA2, the output of TA3 connects the signal input part of programmable controller PLC by analog quantity input module MSM, the signal output part of programmable controller PLC scoops out the control coil of urgent telegram source contactor KMA, and the switch contact KMA-1 of emergency power supply contactor KMA is connected in the current supply circuit of blower fan M and emergency power supply EPS.
2. driving face in coal mine power failure Emergency power supply unit according to claim 1, it is characterized in that: described emergency power supply EPS is by rectification charging module ZLQ1, batteries BAT1, starting contactor KM, resistance R 1, capacitor C 1, electric bridge NPQ1 forms, the input termination master current supply circuit of rectification charging module ZLQ1, its two positive-negative output ends connect batteries BAT1 two ends respectively, capacitor C 1, electric bridge NPQ1 is connected in parallel on batteries BAT1 two ends respectively, the control coil of starting contactor KM is connected on the signal output part of programmable controller PLC, be connected on the end of batteries BAT1 after the switch contact KM-1 of starting contactor KM and resistance R 1 are in parallel, three outputs of electric bridge NPQ1 are connected with the switch contact KMA-1 of emergency power supply contactor KMA.
3. driving face in coal mine power failure Emergency power supply unit according to claim 2, it is characterized in that: described blower fan M is connected with the emergency power supply current supply circuit with main current supply circuit simultaneously, is provided with mechanical interlocks between main power source contactor KMB and the emergency power supply contactor KMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201785595U CN202076839U (en) | 2011-05-27 | 2011-05-27 | Emergency power supply device for power failure of coal mine heading surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201785595U CN202076839U (en) | 2011-05-27 | 2011-05-27 | Emergency power supply device for power failure of coal mine heading surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202076839U true CN202076839U (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201785595U Expired - Fee Related CN202076839U (en) | 2011-05-27 | 2011-05-27 | Emergency power supply device for power failure of coal mine heading surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202076839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196822A (en) * | 2020-10-10 | 2021-01-08 | 辽宁华融富瑞新能源科技股份有限公司 | Emergency fan system for hydrogen energy triple supply |
-
2011
- 2011-05-27 CN CN2011201785595U patent/CN202076839U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196822A (en) * | 2020-10-10 | 2021-01-08 | 辽宁华融富瑞新能源科技股份有限公司 | Emergency fan system for hydrogen energy triple supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20140527 |