CN101145676A - Multi-voltage and multi-loop explosion-proof device for mine - Google Patents
Multi-voltage and multi-loop explosion-proof device for mine Download PDFInfo
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- CN101145676A CN101145676A CNA2007101392842A CN200710139284A CN101145676A CN 101145676 A CN101145676 A CN 101145676A CN A2007101392842 A CNA2007101392842 A CN A2007101392842A CN 200710139284 A CN200710139284 A CN 200710139284A CN 101145676 A CN101145676 A CN 101145676A
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- 238000002955 isolation Methods 0.000 claims abstract description 3
- 238000004804 winding Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 238000005286 illumination Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000003245 coal Substances 0.000 abstract description 5
- 238000005065 mining Methods 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a multiple-voltage multi-loop explosion suppression device for mining, belonging to the technical field of power supply equipment for mining. The invention is characterized in that high-voltage power supplies A, B and C are accessed to a high voltage switchgear of an underground transformer station, and connected with a vacuum circuit breaker GD through an isolating switch GK, the output terminal of the vacuum circuit breaker GD is connected with the input terminal of a dry-type transformer via a first connecting flange, the voltage output terminal of the dry-type transformer is divided into two groups, one group is high-voltage side Am, Bm and Cm, and the other group is low-voltage side a, b and c, the two voltage output terminals are respectively connected with the isolation and reversing switches SW1 and SW2 in a combined switch at the low-voltage side via a second connecting flange, and the output terminals of the reversing switches SW1 and SW2 is connected with vacuum contactors K1-K10 and then connected with a load. The invention meets the power supply demand of the entire underground voltage class devices, reduces power supply equipments, reduces cable connection, shortens the floor area of working surface, improves production efficiency, and is in favor of safety production in coal mine.
Description
Technical field
The invention 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 more and more higher, 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, rise to 660V by the earliest 380V, the eighties rises to 1.14KV, and earlier 1900s rises to 3.3KV.Though 380V disappears substantially in big ore deposit, 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, and emulsification pump, disintegrating machine, elevating conveyor adopt 1.14KV or 660V power supply, and atomizing pump, water pump mostly are the 660V power supplies.To getting working face, the cable of different electric pressures and the transformer of different voltages and other power supply unit are very many from down-hole 6KV/10KV central substation.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 purpose of this invention is to provide a kind of multi-voltage and multi-loop explosion-proof device for mine, a high-voltage cable is delivered to the load center high side switch, through transformer to the low-pressure side unit switch, output totally 6～10 tunnel, reduce power supply unit, reduced the cable connection, dwindled the occupation of land space of working face, help the safety in production in colliery, improved production efficiency.
The present invention is achieved in that multi-voltage and multi-loop explosion-proof device for mine, ground high voltage source A, B, C inserts the high voltage distribution installation 1 of down-hole electric substation, behind isolating switch GK, meet vacuum circuit-breaker GD, the output of vacuum circuit-breaker GD is connected through the input of first adpting flange 2 and dry-type transformer 3, the voltage output end of dry-type transformer 3 is divided into two groups, one group is high-pressure side Am, Bm, Cm, another group is low-pressure side a, b, c, two groups of voltage output ends are isolated the SW1 of reversing switch respectively with in the low-pressure side unit switch 4 through second adpting flange 5, SW2 connects, reversing switch SW1, the output of SW2 connects load after connecting vacuum contactor K1～10, has realized multi-voltage and multi-loop output;
At low-pressure side a, b on the c output line, connects simultaneously and meets two-way illumination contactor K1, K2 in the unit switch 4 behind the transformer T2.
The winding configuration of low-pressure side a, b, c or be star winding or for delta windings.
Compare with existing colliery emergency electric supply unit, the invention has the beneficial effects as follows: the demand that has satisfied the whole electric pressure equipment in down-hole, the quantity of power supply unit significantly reduces, the cable connection significantly reduces, narrow working face helps the quick propelling of working face owing to the occupation of land space of working face has been dwindled in the minimizing of number of devices.In addition, accident frequency reduces greatly, has improved production efficiency, thereby provides convenience for management and safety in production.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that output low-pressure side a, b, the c of dry-type transformer 3 is the schematic diagram of delta windings;
Fig. 3 is a workflow diagram.
Embodiment
As shown in Figure 1, ground high voltage source A, B, C (3.3KV cable) insert the high voltage distribution installation 1 of down-hole electric substation, meet vacuum circuit-breaker GD behind isolating switch GK, the output of vacuum circuit-breaker GD is connected through the input of first adpting flange 2 and dry-type transformer 3;
In high voltage distribution installation 1, behind isolating switch GK (model GN8), meet vacuum circuit-breaker GD (model ZN8-400/6-10); the output of vacuum circuit-breaker GD is connected through the input of first adpting flange 2 and dry-type transformer 3; in real time the signal that collects is sent to comprehensive protection device (GZBX-1) by current transformer TA1 (model 300VA 220V/42V 16V) with data-signal at ruuning situation, by analysis again by display unit output operational factor.
The voltage output end of dry-type transformer 3 is divided into two groups, one group is high-pressure side Am, Bm, Cm, another group is low-pressure side a, b, c, two groups of voltage output ends are connected with SW1, the SW2 (model SHC79/700A) of isolation reversing switch in the low-pressure side unit switch 4 respectively through second adpting flange 5, and the output of reversing switch SW1, SW2 connects load after connecting vacuum contactor K1～K10 (model ZKTJ-400/3.6KV);
At low-pressure side a, b on the c output line, connects simultaneously in the unit switch 4 that 127V meets two-way illumination contactor K1, K2 behind the transformer T2.
Fig. 1 mesolow side a, b, the winding configuration of c are the star winding, low-pressure side a as shown in Figure 2, b, the winding configuration of c are delta windings, by different connections, can realize different voltage output.
At low-pressure side a, b on the c output line, is with a lighting transformer T2 simultaneously, drives two-way illumination contactor K1～K2 then, realizes lighting voltage output.
Power a kind of in the following 5 kinds of supply power modes of optional usefulness of 8 tunnel of K3～K10:
A, 8 loop 3.3KV;
B, 8 loop 1.14KV;
C, 4 loop 3.3KV, 4 loop 1.14KV;
D, 6 loop 1.14KV, 2 loop 0.66KV;
E, 6 loop 3.3KV, 2 loop 0.66KV.
It is industrial computer IPC control mode that the present invention adopts.Workflow is as shown in Figure 3:
Working power causes the down-hole central substation from ground 35KV electric substation with 10KV or 6KV, power supply is directly supplied with output termination dry type phase shifting transformer 3 primary sides that meet vacuum circuit-breaker GD behind the load center high-voltage switch gear GK by the high voltage distribution installation 1 of central substation, three kinds of voltages of secondary side output of phase shifting transformer 3, but can only there be two kinds of voltages to work simultaneously, the low-pressure side unit switch is exported 8 road major loops, the two-way lighting loop.Its mesohigh Am, Bm, Cm are 5 the tunnel, and low pressure a, b, c are 3 the tunnel, and the two-way lighting loop is by the transformer-supplied of the inner 8KVA of unit switch.
The low-pressure side unit switch of output is exported 8 road major loops, the two-way lighting loop is respectively: the two-way mains lighting supply, 250KW hydraulic pump power supply, the 110KW power supply of spraying, stand-by power supply, scraper plate double speed tail high speed, low-speed power behind the 700KW, stand-by power supply, scraper plate double speed head high speed, low-speed power behind the 700KW.
The structure of computer control part is: outside sampling unit GU (model 8SD8523), current transformer TA2, TA3 (model 300VA 220V/42V 16V) delivers to signal processor ESC with data, signal processor ESC (model E58708) is that standard signal is delivered to bus terminal I/O with conversion of signals, direct and industrial computer IPC (model HUPIC-K) the realization exchanges data through bus terminal I/O, industrial computer IPC drives LCD TFT (model P89C51-TFT), IPC sends instruction drives vacuum contactor K1～K10 by bus terminal I/O pull-in winding action simultaneously, realization is to the control of a plurality of branch road vacuum contactor K1～K10, intrinsic safety type mouse MOUSE is adopted in human-computer dialogue, operation is succinct convenient, and failure rate is low.
Claims (2)
1. multi-voltage and multi-loop explosion-proof device for mine, mainly by high voltage distribution installation (1), dry-type transformer (3), unit switch (4) and adpting flange are formed, it is characterized in that: ground high voltage source (A, B, C) high voltage distribution installation (1) of access down-hole electric substation, behind isolating switch (GK), connect vacuum circuit-breaker (GD), the output of vacuum circuit-breaker (GD) is connected through the input of first adpting flange (2) with dry-type transformer (3), the voltage output end of dry-type transformer (3) is divided into two groups, one group is high-pressure side (Am, Bm, Cm), another group is low-pressure side (a, b, c), two groups of voltage output ends through second adpting flange (5) respectively with low-pressure side unit switch (4) in isolation reversing switch (SW1, SW2) connect reversing switch (SW1, SW2) output connects load after connecting vacuum contactor (K1～10);
(a, b c) on the output line, connect simultaneously and connect two-way illumination contactor (K1, K2) behind the interior transformer of unit switch (4) (T2) in low-pressure side.
2. according to the described multi-voltage and multi-loop explosion-proof device for mine of claim 1, it is characterized in that: the winding configuration of low-pressure side (a, b, c) or for the star winding or for delta windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101392842A CN101145676A (en) | 2007-08-23 | 2007-08-23 | Multi-voltage and multi-loop explosion-proof device for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101392842A CN101145676A (en) | 2007-08-23 | 2007-08-23 | Multi-voltage and multi-loop explosion-proof device for mine |
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| Publication Number | Publication Date |
|---|---|
| CN101145676A true CN101145676A (en) | 2008-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101392842A Pending CN101145676A (en) | 2007-08-23 | 2007-08-23 | Multi-voltage and multi-loop explosion-proof device for mine |
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| CN (1) | CN101145676A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005745A (en) * | 2010-12-07 | 2011-04-06 | 傅桂兴 | IT power distribution system of 380/220V low voltage network and leakage protector thereof |
| CN102290714A (en) * | 2011-08-16 | 2011-12-21 | 郭福香 | Mine explosion-proof and intrinsically safe drive center |
| CN102611008A (en) * | 2012-04-07 | 2012-07-25 | 山西科泰电气有限公司 | Multi-voltage multi-circuit mine flameproof and intrinsically-safe power center |
| CN102646955A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | Comprehensive protecting device for coal mine power center |
| CN102646964A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | High-low voltage integrated control device for coal mine power center |
| CN102646972A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | Overvoltage protecting device for coal mine power center |
| CN102681696A (en) * | 2012-04-28 | 2012-09-19 | 山西科泰电气有限公司 | Explosion-proof mouse controlled programmable logic controller (PLC) device in coal mine power centre |
| CN105429278A (en) * | 2014-09-09 | 2016-03-23 | 天津华宁电子有限公司 | Multi-loop load center with intelligent control apparatus |
| CN106300105A (en) * | 2016-08-31 | 2017-01-04 | 北京和利时智能技术有限公司 | A kind of high-low pressure integratedization Flameproof intrinsically safe mine movable transformer station |
-
2007
- 2007-08-23 CN CNA2007101392842A patent/CN101145676A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005745A (en) * | 2010-12-07 | 2011-04-06 | 傅桂兴 | IT power distribution system of 380/220V low voltage network and leakage protector thereof |
| CN102290714A (en) * | 2011-08-16 | 2011-12-21 | 郭福香 | Mine explosion-proof and intrinsically safe drive center |
| CN102290714B (en) * | 2011-08-16 | 2014-04-16 | 郭福香 | Mine explosion-proof and intrinsically safe drive center |
| CN102611008A (en) * | 2012-04-07 | 2012-07-25 | 山西科泰电气有限公司 | Multi-voltage multi-circuit mine flameproof and intrinsically-safe power center |
| CN102646955A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | Comprehensive protecting device for coal mine power center |
| CN102646964A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | High-low voltage integrated control device for coal mine power center |
| CN102646972A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | Overvoltage protecting device for coal mine power center |
| CN102681696A (en) * | 2012-04-28 | 2012-09-19 | 山西科泰电气有限公司 | Explosion-proof mouse controlled programmable logic controller (PLC) device in coal mine power centre |
| CN105429278A (en) * | 2014-09-09 | 2016-03-23 | 天津华宁电子有限公司 | Multi-loop load center with intelligent control apparatus |
| CN106300105A (en) * | 2016-08-31 | 2017-01-04 | 北京和利时智能技术有限公司 | A kind of high-low pressure integratedization Flameproof intrinsically safe mine movable transformer station |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20080222 Address after: No. 21, explosion proof tunnel, Chengbei West Road, Shanxi, Changzhi Applicant after: Zhang Yi Tang Co-applicant after: Shen Huabo Co-applicant after: Pu Luka Co-applicant after: Guan Li Co-applicant after: Lu Xiuhua Address before: No. 21, explosion proof tunnel, Chengbei West Road, Shanxi, Changzhi Applicant before: BARTEC electric (Shanxi) Co., Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080319 |