CN102684168A - Low-voltage vacuum feed switch electricity jump alarm device and underground substation power supply system - Google Patents
Low-voltage vacuum feed switch electricity jump alarm device and underground substation power supply system Download PDFInfo
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- CN102684168A CN102684168A CN2011100561799A CN201110056179A CN102684168A CN 102684168 A CN102684168 A CN 102684168A CN 2011100561799 A CN2011100561799 A CN 2011100561799A CN 201110056179 A CN201110056179 A CN 201110056179A CN 102684168 A CN102684168 A CN 102684168A
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Abstract
The invention discloses a low-voltage vacuum feed switch electricity jump alarm device and an underground substation power supply system. The low-voltage vacuum feed switch electricity jump alarm device comprises a power supply, a control end switch and an alarm which are connected with one another in series, wherein the power supply is an intrinsically-safe power supply in the low-voltage vacuum feed switch electricity jump alarm device; the control end switch is a first auxiliary normally-open contact of an inner contactor of a low-voltage vacuum feed switch; and the alarm is an explosion-proof electric bell in a mining explosion-proof intrinsically-safe acousto-optic combination signal switch and sends out an alarm under a closed state of the first auxiliary normally-open contact. The underground substation power supply system comprises a substation, a control switch, underground operation equipment and the low-voltage vacuum feed switch and also comprises the low-voltage vacuum feed switch electricity jump alarm device disclosed by the invention,. The low-voltage vacuum feed switch electricity jump alarm device and the underground substation power supply system have the beneficial effect that when a line at the controlled side of the low-voltage vacuum feed switch generates electricity jump, the alarm timely sends out an alarm.
Description
Technical field
The present invention relates to down-hole electric substation alarm technique, particularly a kind of low-voltage vacuum feeding switch is jumped electric alarm device and down-hole electric substation electric power system.
Background technology
The low-voltage vacuum feeding switch is called for short low anti-switch, is important switchgear in the electric power system in the electric substation of down-hole.When overload, short circuit or leak current fault occurring in the controlled side line of the low-voltage vacuum feeding switch road, the low-voltage vacuum feeding switch can be jumped electricity as requested automatically, thereby cuts off circuit, and controlled side apparatus is protected.
Strengthen along with the pit mining scale in recent years and the output increase; Fully-mechanized mining working must adopt high-power electrical equipment to adapt to the rhythm of high-yield and high-efficiency; Jumping often appears under adverse circumstances under big load and the coal mine in the low-voltage vacuum feeding switch; Not only influence the ordinary production of mine, more increased the hidden danger of security incident.
The problem that prior art exists is, when the low-voltage vacuum feeding switch was jumped electricity, tripping operation sound was less, can't penetrate thick explosion-resistant enclosure, and the power transformation worker very easily neglects the electric substation of down-hole in, is difficult to find the jumping electric fault, can not in time a little overhaul breaking down.
Because when the low-voltage vacuum feeding switch is jumped electricity, the power supply circuits that can cut off controlled side, if can not in time find fault to overhauling the fault point; Can cause because of sending electricity untimelyly to influence production, or even, cause the interruption of supervisory control system because of having cut off the circuit of fire damp supervisory control system; Therefore possibly cause in this time period and can't monitor the underground work situation, for example, can not in time find gas exceeding limit; Therefore can have an accident, cause potential safety hazard to underground work.
Summary of the invention
The present invention provides a kind of low-voltage vacuum feeding switch to jump electric alarm device and down-hole electric substation electric power system, when jumping electricity, can't in time find the also problem of trouble shooting to solve in the prior art that circuit when the controlled side of low-voltage vacuum feeding switch breaks down.
The present invention provides a kind of low-voltage vacuum feeding switch to jump the electric alarm device, comprises power supply, control end switch and alarm, power supply, control end switch and alarm series connection.
Said power supply is the intrinsic safety electric source in the low-voltage vacuum feeding switch explosion-proof casing;
Said control end switch is the first auxiliary normally open contact of contactor in the low-voltage vacuum feeding switch;
Said alarm is the explosion-proof electric bell in the mine explosion-suppression essential safe type acousto-optic composite signal switch;
Wherein, said alarm is reported to the police under the said first auxiliary normally open contact closure state.
Further, also comprise SR, said SR links to each other with said control end switch, and said SR breaks off said control end switch when down state.
The present invention also provides a kind of down-hole electric substation electric power system, comprises electric substation, control switch, downhole operation equipment and low-voltage vacuum feeding switch, comprises that also the low-voltage vacuum feeding switch that the embodiment of the invention provides jumps the electric alarm device.
Low-voltage vacuum feeding switch provided by the invention is jumped electric alarm device and down-hole electric substation electric power system; When the low-voltage vacuum feeding switch is jumped electricity because of the circuit of controlled side breaks down; In time report to the police through warning device; Prompting the maintenance personal in time a little overhaul breaking down, and improves reliability, fail safe and the continuity of underground power supply system.
Description of drawings
The low-voltage vacuum feeding switch that Fig. 1 provides for the embodiment of the invention is jumped the electrical schematic diagram of electric alarm device power unit;
Fig. 2 jumps the electric alarm manipulated or operated apparatus for the low-voltage vacuum feeding switch that the embodiment of the invention provides.
Reference numeral:
The 14-power supply; 15-control end switch; The 16-alarm;
17-low-voltage vacuum feeding switch 171-first is auxiliary often to be opened 172-second auxiliary often the opening and touches
Interior contactor; Contact; Head;
173-first normally closed interlock; 174-second normally closed interlock; The 18-SR.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The low-voltage vacuum feeding switch that Fig. 1 provides for the embodiment of the invention is jumped the electrical schematic diagram of electric alarm device power unit; The low-voltage vacuum feeding switch that Fig. 2 embodiment of the invention provides is jumped the electric alarm manipulated or operated apparatus; As depicted in figs. 1 and 2, this low-voltage vacuum feeding switch is jumped the electric alarm device and is comprised power supply 14, control end switch 15 and alarm 16.
Wherein, Control end switch 15 is the first auxiliary normally open contact 171 in the contactor 17 in the low-voltage vacuum feeding switch; Power supply 14, control end switch 15 and alarm 16 series connection, the connecting circuit of composition warning device, alarm 16 is reported to the police under first auxiliary normally opened contact 171 switch closed condition.
The power supply 14 of warning device is the intrinsic safety electric source in the low-voltage vacuum feeding switch explosion-proof casing; The AB end that draws low-voltage vacuum feeding switch explosion-proof casing inner control transformer from the down-hole; This supply voltage is the AC127V alternating voltage of (AC representes alternating voltage); Therefore this warning device directly utilizes existing power supply, need not be more separately for warning device be provided with supply unit, and can adapt to the down-hole and have the safety requirements of explosive gas atmosphere to power supply.
Mine flameproof and intrinsic safety type acousto-optic composite signal switch (not shown) is used for the signal contact of belt transportation lane, rail transport lane, winch transportation lane and boring head and the signal contact of winch transportation.
This acousto-optic composite signal switch is to integrate to get button, explosion-proof lamp, explosion-proof electric bell, several kinds of functions of threeway wiring ready; Utilization power carrier transmission and PHASE-LOCKED LOOP PLL TECHNIQUE; Functions such as single worker's intercommunication, many All-China Federation of Taiwan Compatriots machine and the conversion of safety signal display lamp have been realized; For mine communication brings great convenience, be that communication desirable under the coal mine and signal transmit equipment, and meet the down-hole and have the safety requirements of explosive gas atmosphere electric equipment.
Alarm in this warning device adopts the explosion-proof electric bell in the above-mentioned mine flameproof and intrinsic safety type acousto-optic composite signal switch; Need not to be provided with separately again alarm, and this explosion-proof electric bell meets the down-hole and has the safety requirements of explosive gas atmosphere to electric equipment.
Introduce this low-voltage vacuum feeding switch below and jump the course of work of electric alarm device.
When the circuit of the controlled side of low-voltage vacuum feeding switch is a normal condition; When faults such as overload, short circuit or electric leakage not occurring; First of the contactor 17 auxiliary normally open contact 171 does not move in the low-voltage vacuum feeding switch; Auxiliary normally open contact wherein is in open position, and normally-closed contact is in the close position, and warning device is not worked.
When faults such as overload, short circuit or electric leakage appear in the circuit of the controlled side of low-voltage vacuum feeding switch; The low-voltage vacuum feeding switch is jumped; At this moment, the normally closed interlock of contactor 17 breaks off in the low-voltage vacuum feeding switch, and promptly first normally closed interlock 173 and second normally closed interlock 174 break off; Cut off the circuit of controlled side, the circuit of controlled side is protected; Simultaneously, auxiliary normally open contact is closed, and promptly the first auxiliary normally open contact 171 and second is assisted normally open contact 172 closures, and therefore the circuit of closed warning device sends alarm signal through alarm, and prompting the maintenance personal a little overhaul breaking down, and discharges fault.
Can know by technique scheme; When the circuit of the controlled side of low-voltage vacuum feeding switch breaks down; The low-voltage vacuum feeding switch is jumped electricity, in time reports to the police through warning device, and prompting the maintenance personal a little overhaul breaking down; Improve reliability, fail safe and the continuity of underground power supply system, and guarantee the safety of down-hole effect.
On the basis of the foregoing description, further, this low-voltage vacuum feeding switch is jumped the electric alarm device and also is provided with SR 18; This SR 18 links to each other with the first auxiliary normally open contact 171, and SR 18 breaks off the first closed auxiliary normally open contact 171 when down state, when fault is overhauled; Can press SR 18; Break off the circuit of warning device, eliminate alarm signal, so that circuit is keeped in repair.
The present invention also provides a kind of down-hole electric substation electric power system, comprises electric substation, control switch, downhole operation equipment and low-voltage vacuum feeding switch, comprises that also the low-voltage vacuum feeding switch that the embodiment of the invention provides jumps the electric alarm device.
Can know that by technique scheme low-voltage vacuum feeding switch provided by the invention is jumped electric alarm device and down-hole electric substation electric power system, utilizes the equipment under the existing well; Need not increase new device, can realize warning function, when the low-voltage vacuum feeding switch breaks down the jumping electricity; In time report to the police through warning device; Prompting the maintenance personal a little overhaul breaking down, and improves reliability, fail safe and the continuity of underground power supply system, and guarantee the safety of down-hole effect.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (3)
1. a low-voltage vacuum feeding switch is jumped the electric alarm device, comprises power supply, control end switch and alarm, and power supply, control end switch and alarm series connection is characterized in that,
Said power supply is the intrinsic safety electric source in the low-voltage vacuum feeding switch explosion-proof casing;
Said control end switch is the first auxiliary normally open contact of contactor in the low-voltage vacuum feeding switch;
Said alarm is the explosion-proof electric bell in the mine explosion-suppression essential safe type acousto-optic composite signal switch;
Wherein, said alarm is reported to the police under the said first auxiliary normally open contact closure state.
2. low-voltage vacuum feeding switch according to claim 1 is jumped the electric alarm device, it is characterized in that, also comprises:
SR, said SR links to each other with said control end switch, and said SR breaks off said control end switch when down state.
3. a down-hole electric substation electric power system comprises electric substation, control switch, downhole operation equipment and low-voltage vacuum feeding switch, it is characterized in that, also comprises: the arbitrary described low-voltage vacuum feeding switch of claim 1～2 is jumped the electric alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100561799A CN102684168A (en) | 2011-03-09 | 2011-03-09 | Low-voltage vacuum feed switch electricity jump alarm device and underground substation power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100561799A CN102684168A (en) | 2011-03-09 | 2011-03-09 | Low-voltage vacuum feed switch electricity jump alarm device and underground substation power supply system |
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| Publication Number | Publication Date |
|---|---|
| CN102684168A true CN102684168A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100561799A Pending CN102684168A (en) | 2011-03-09 | 2011-03-09 | Low-voltage vacuum feed switch electricity jump alarm device and underground substation power supply system |
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| CN (1) | CN102684168A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2182111Y (en) * | 1994-03-05 | 1994-11-09 | 重庆铁路分局重庆南车站 | Alarming device for dispatching vehicle train |
| CN2239056Y (en) * | 1995-12-15 | 1996-10-30 | 东营市人民医院 | Alarm apparatus for water-supply cut-off and power cut of electric heating distilled water apparatus |
| CN2271056Y (en) * | 1996-01-18 | 1997-12-17 | 四平市开关厂 | Flame-proof type vacuum feeder switch |
| CN101845829A (en) * | 2010-05-06 | 2010-09-29 | 中国核工业华兴建设有限公司 | Automatic monitoring and warning system for nuclear power plant concrete structure sediment |
-
2011
- 2011-03-09 CN CN2011100561799A patent/CN102684168A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2182111Y (en) * | 1994-03-05 | 1994-11-09 | 重庆铁路分局重庆南车站 | Alarming device for dispatching vehicle train |
| CN2239056Y (en) * | 1995-12-15 | 1996-10-30 | 东营市人民医院 | Alarm apparatus for water-supply cut-off and power cut of electric heating distilled water apparatus |
| CN2271056Y (en) * | 1996-01-18 | 1997-12-17 | 四平市开关厂 | Flame-proof type vacuum feeder switch |
| CN101845829A (en) * | 2010-05-06 | 2010-09-29 | 中国核工业华兴建设有限公司 | Automatic monitoring and warning system for nuclear power plant concrete structure sediment |
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Application publication date: 20120919 |