CN102611008A - Multi-voltage multi-circuit mine flameproof and intrinsically-safe power center - Google Patents
Multi-voltage multi-circuit mine flameproof and intrinsically-safe power center Download PDFInfo
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- CN102611008A CN102611008A CN2012100991626A CN201210099162A CN102611008A CN 102611008 A CN102611008 A CN 102611008A CN 2012100991626 A CN2012100991626 A CN 2012100991626A CN 201210099162 A CN201210099162 A CN 201210099162A CN 102611008 A CN102611008 A CN 102611008A
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Abstract
The invention relates to a multi-voltage multi-circuit mine flameproof and intrinsically-safe power center, belonging to the technical field of coal mine power supply equipment. The invention aims at providing the flameproof and intrinsically-safe power center which has multiple supply voltage levels and multiple power supply lines. The adopted technical scheme is that a high-voltage distribution device consists of an isolating switch GK1 and a vacuum circuit breaker GD1 which are serially connected with each other, the incoming line end of the isolating switch GK1 is connected with a high-voltage power supply of a mining area substation, the output end of the vacuum circuit breaker GD1 is connected with the primary side of a dry-type transformer, the secondary side of the dry-type transformer at least comprises two groups of independent coils, wherein one group is a high-voltage winding and the other group is a low-voltage winding, and a combined switch for the power center at least comprises four output circuits, i.e. a first output circuit, a second output circuit, a third output circuit and a fourth output circuit. The multi-voltage multi-circuit mine flameproof and intrinsically-safe power center is suitable for the field of coal mine power supply.
Description
Technical field
Multi-voltage and multi-loop mine flameproof and intrinsic safety type of the present invention power center (PC) belongs to colliery emergency electric supply unit technical field.
Background technology
Along with the continuous development of mining level, the modernization level of coal mining is increasingly high, and the coal excavation apparatus power demand is increasing; The colliery is underground power supply used to be vertical complicated problems, especially getting working face of a mistake, along with the high-power coal excavation apparatus of high-yield and high-efficiency is increasing; Supply power voltage originally can not be fit to; 380V by the earliest rises to 660V, and the eighties rises to 1.14KV, and earlier 2000s rises to 3.3KV; Though 380V disappears in big ore deposit basically, 660V, 1.14KV, 3.3KV, 127V illuminating line coexist under coal mine; Such as: coal-winning machine, drag conveyor power are the 3.3KV power supply mostly; Emulsification pump, disintegrating machine, elevating conveyor adopt 1.14KV or 660V power supply; Atomizing pump, water pump mostly are the 660V power supplies; The 6KV/10KV central substation is to getting working face from the down-hole, and the cable of different electric pressures and the transformer of different voltages are very many with other power supply unit; Cable fault has an accident and accounts for 45% of whole power supply unit accident under the existing well, and the occupation of land space of working face is big, and this brings inconvenience for management and safety in production.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical problem to be solved is: the mine flameproof and intrinsic safety type power center (PC) that a kind of power supply voltage level is many, supply line is many is provided.
For solving the problems of the technologies described above; The technical scheme that the present invention adopted is: multi-voltage and multi-loop mine flameproof and intrinsic safety type power center (PC); Comprise: unit switch is used in high voltage distribution installation, dry-type transformer and power center (PC); Said high voltage distribution installation is made up of isolating switch GK1 serial connection vacuum circuit-breaker GD1, and the end of incoming cables of isolating switch GK1 links to each other with the high voltage source of working section sub station, and the output of said vacuum circuit-breaker GD1 links to each other with the primary side of dry-type transformer; The secondary side of said dry-type transformer comprises two groups of absolute coils at least, and wherein one group is the high pressure winding, and another group is the low pressure winding.
Said power center (PC) comprises at least four group output loops with unit switch, first output loop, second output loop, the 3rd output loop, the 4th output loop; Above-mentioned output loop is formed by an isolation reversing switch and two vacuum contactors, and the input of two vacuum contactors also connects the back and links to each other with the output of isolating reversing switch; The input of isolation reversing switch Q1 in said first output loop and connect the input of the isolation reversing switch Q2 in second output loop after with dry-type transformer in the output of high pressure winding link to each other, the input of the isolation reversing switch Q3 in said the 3rd output loop and connect the input of the isolation reversing switch Q4 in the 4th output loop after with dry-type transformer in the output of low pressure winding link to each other.
Said high voltage distribution installation and power center (PC) are installed in the explosion-proof casing with unit switch, and said dry-type transformer is the explosion-proof type dry-type transformer; High voltage distribution installation, dry-type transformer and power center (PC) are with connecting through flange between the unit switch.
Said low pressure winding can carry out star, triangle conversion.
The beneficial effect that the present invention compared with prior art has is: the present invention can satisfy the electric pressure demand of exploiting field armamentarium under the coal mine; This device of separate unit can drive the armamentarium of a fully-mechanized mining working; This significantly reduces with regard to the quantity that makes power supply unit; Reduced stube cable simultaneously, reduced failure rate, dwindled the occupation of land space of power supply unit to greatest extent, helped the quick propelling of working face, thereby facilitate for management and safety in production.
Description of drawings
Do further detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 1 is an electrical block diagram of the present invention.
Among the figure: 1 is that high voltage distribution installation, 2 is that first output loop, 8 be second output loop, 9 be three output loop, 10 be four output loop as high pressure winding, 6 as low pressure winding, 7 as high voltage source, 5 for dry-type transformer, 3 uses unit switch, 4 for the power center (PC).
Embodiment
As shown in Figure 1; Multi-voltage and multi-loop mine flameproof and intrinsic safety type of the present invention power center (PC); Comprise: high voltage distribution installation 1, dry-type transformer 2 and power center (PC) are with unit switch 3; Said high voltage distribution installation 1 is installed in the explosion-proof casing with unit switch 3 with the power center (PC), and said dry-type transformer 2 is the explosion-proof type dry-type transformer; High voltage distribution installation 1, dry-type transformer 2 and power center (PC) are with connecting through flange between the unit switch 3.
Said high voltage distribution installation 1 is made up of isolating switch GK1 serial connection vacuum circuit-breaker GD1; Be provided with comprehensive protection device in the high voltage distribution installation 1; All kinds of analog signals that the comprehensive protection device collection is outside such as electric current, insulation, temperature etc. are through analyzing again by display unit output operational factor; The end of incoming cables of said isolating switch GK1 links to each other with the high voltage source of working section sub station 4; The output of said vacuum circuit-breaker GD1 links to each other with the primary side of dry-type transformer 2; Comprehensive protection device is realized the control to vacuum circuit-breaker GD1 through control combined floodgate motor, and it is the comprehensive protection device of GZBX-1 that above-mentioned comprehensive protection device adopts model.
The secondary side of said dry-type transformer 2 comprises two groups of absolute coils at least; Wherein one group is high pressure winding 5; Another group is low pressure winding 6, the three-phase alternating current of above-mentioned high pressure winding 5 exportable 3.3KV, the three-phase alternating current of low pressure winding 6 exportable 1.14KV; Low pressure winding 6 can carry out star, triangle conversion, and the quantity of the secondary side absolute coil of dry-type transformer 2 can increase according to on-the-spot needs.
Said power center (PC) comprises at least four group output loops with unit switch 3; First output loop 7, second output loop 8, the 3rd output loop 9, the 4th output loop 10; The quantity of above-mentioned output loop can increase according to on-the-spot needs; Above-mentioned output loop is formed by an isolation reversing switch and two vacuum contactors, and the input of two vacuum contactors also connects the back and links to each other with the output of isolating reversing switch; The input of isolation reversing switch Q1 in said first output loop 7 and connect the input of the isolation reversing switch Q2 in second output loop 8 after with dry-type transformer 2 in the output of high pressure winding 5 link to each other, the input of the isolation reversing switch Q3 in said the 3rd output loop 9 and connect the input of the isolation reversing switch Q4 in the 4th output loop 10 after with dry-type transformer 2 in the output of low pressure winding 6 link to each other.
The vacuum contactor that is provided with in above-mentioned first output loop 7, second output loop 8, the 3rd output loop 9 and the 4th output loop 10 is followed successively by vacuum contactor K1, K2, K3, K4, K5, K6, K7, K8; 8 tunnel power supplies of above-mentioned K1 ~ K8 can provide 3 kinds of voltage supplied; Multiple supply power mode; Can satisfy the electric pressure demand of exploiting field armamentarium under the coal mine; This device of separate unit can drive the armamentarium of a fully-mechanized mining working, this significantly reduces with regard to the quantity that makes power supply unit, has reduced stube cable simultaneously, has reduced failure rate, has dwindled the occupation of land space of power supply unit to greatest extent; Help the quick propelling of working face, thereby provide convenience for management and safety in production.
It is the isolation reversing switch of GHK-400 that above-mentioned isolation reversing switch Q1 ~ Q4 adopts model, and it is the vacuum contactor of CKJ11-500/3.6KV that above-mentioned vacuum contactor K1 ~ K8 adopts model.
PLC control is adopted with unit switch 3 in power center (PC) among the present invention; The structure of said PLC control section is: outside current sensor induces signal by operating current; And be that standard signal is delivered to bus terminal I/0 with this conversion of signals, deliver to PLC through bus terminal I/0 and realize exchanges data, PLC driving liquid crystal device; PLC sends instruction drives relay K A1-KA8 through bus terminal I/0 pull-in winding action simultaneously; Realization is to the control of a plurality of branch road vacuum contactor K1 ~ K8, and human-computer dialogue adopts the intrinsic safety type mouse action succinctly convenient, and failure rate is low; It is the current sensor of WB1214F31 that above-mentioned current sensor adopts model; It is the PLC of S7-300 that above-mentioned PLC adopts model, and it is the LCD of MP277 that above-mentioned LCD adopts model, and it is the intrinsic safety mouse of HP-1330 that above-mentioned intrinsic safety type mouse adopts model.
Claims (3)
1. multi-voltage and multi-loop mine flameproof and intrinsic safety type power center (PC); Comprise: high voltage distribution installation (1), dry-type transformer (2) and power center (PC) are with unit switch (3); It is characterized in that: said high voltage distribution installation (1) is made up of isolating switch GK1 serial connection vacuum circuit-breaker GD1; The end of incoming cables of isolating switch GK1 links to each other with the high voltage source of working section sub station (4), and the output of said vacuum circuit-breaker GD1 links to each other with the primary side of dry-type transformer (2); The secondary side of said dry-type transformer (2) comprises two groups of absolute coils at least, and wherein one group is high pressure winding (5), and another group is low pressure winding (6);
Said power center (PC) comprises at least four group output loops with unit switch (3), first output loop (7), second output loop (8), the 3rd output loop (9), the 4th output loop (10); Above-mentioned output loop is formed by an isolation reversing switch and two vacuum contactors, and the input of two vacuum contactors also connects the back and links to each other with the output of isolating reversing switch; The input of isolation reversing switch Q1 in said first output loop (7) and connect the input of the isolation reversing switch Q2 in second output loop (8) after with dry-type transformer (2) in the output of high pressure winding (5) link to each other, the input of the isolation reversing switch Q3 in said the 3rd output loop (9) and connect the input of the isolation reversing switch Q4 in the 4th output loop (10) after with dry-type transformer (2) in the output of low pressure winding (6) link to each other.
2. multi-voltage and multi-loop mine flameproof and intrinsic safety type according to claim 1 power center (PC); It is characterized in that: said high voltage distribution installation (1) and power center (PC) are installed in the explosion-proof casing with unit switch (3), and said dry-type transformer (2) is the explosion-proof type dry-type transformer; High voltage distribution installation (1), dry-type transformer (2) and power center (PC) are with connecting through flange between the unit switch (3).
3. multi-voltage and multi-loop mine flameproof and intrinsic safety type according to claim 1 and 2 power center (PC) is characterized in that: said low pressure winding (6) can carry out star, triangle conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100991626A CN102611008A (en) | 2012-04-07 | 2012-04-07 | Multi-voltage multi-circuit mine flameproof and intrinsically-safe power center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100991626A CN102611008A (en) | 2012-04-07 | 2012-04-07 | Multi-voltage multi-circuit mine flameproof and intrinsically-safe power center |
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| CN102611008A true CN102611008A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100991626A Pending CN102611008A (en) | 2012-04-07 | 2012-04-07 | Multi-voltage multi-circuit mine flameproof and intrinsically-safe power center |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513764A (en) * | 2015-12-31 | 2016-04-20 | 常州联力自动化科技有限公司 | Explosive-proof dry type transformer for multi-voltage mobile substation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515851Y (en) * | 2001-09-26 | 2002-10-09 | 大同煤矿集团有限责任公司技术中心 | Earth leakage protective device for coal mine underground |
| WO2003050833A1 (en) * | 2001-12-07 | 2003-06-19 | Cirrus Logic, Inc. | Polarity independent power supply control methods and systems using the same |
| CN101145676A (en) * | 2007-08-23 | 2008-03-19 | 博太科电气（山西）有限公司 | Multi-voltage and multi-loop explosion-proof device for mine |
| CN102290714A (en) * | 2011-08-16 | 2011-12-21 | 郭福香 | Mine explosion-proof and intrinsically safe drive center |
| CN202550302U (en) * | 2012-04-07 | 2012-11-21 | 山西科泰电气有限公司 | Multi-voltage multi-circuit mining explosion-suppression intrinsic safety power center |
-
2012
- 2012-04-07 CN CN2012100991626A patent/CN102611008A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515851Y (en) * | 2001-09-26 | 2002-10-09 | 大同煤矿集团有限责任公司技术中心 | Earth leakage protective device for coal mine underground |
| WO2003050833A1 (en) * | 2001-12-07 | 2003-06-19 | Cirrus Logic, Inc. | Polarity independent power supply control methods and systems using the same |
| CN101145676A (en) * | 2007-08-23 | 2008-03-19 | 博太科电气（山西）有限公司 | Multi-voltage and multi-loop explosion-proof device for mine |
| CN102290714A (en) * | 2011-08-16 | 2011-12-21 | 郭福香 | Mine explosion-proof and intrinsically safe drive center |
| CN202550302U (en) * | 2012-04-07 | 2012-11-21 | 山西科泰电气有限公司 | Multi-voltage multi-circuit mining explosion-suppression intrinsic safety power center |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513764A (en) * | 2015-12-31 | 2016-04-20 | 常州联力自动化科技有限公司 | Explosive-proof dry type transformer for multi-voltage mobile substation |
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Application publication date: 20120725 |