CN201766344U - Alarm system - Google Patents
Alarm system Download PDFInfo
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- CN201766344U CN201766344U CN2010202964225U CN201020296422U CN201766344U CN 201766344 U CN201766344 U CN 201766344U CN 2010202964225 U CN2010202964225 U CN 2010202964225U CN 201020296422 U CN201020296422 U CN 201020296422U CN 201766344 U CN201766344 U CN 201766344U
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- alarm
- switch
- power
- output port
- circuit breaker
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Abstract
The utility model provides an alarm system, which comprises an alarm detector, an alarm and a bidirectional control switch. The bidirectional switch includes a power input port, a power output port, an alarm power output port, a control port and a changeover switch, the power input port is connected with a power supply, the power output port is connected with an electric appliance, the alarm power output port is connected with the alarm, the control port is connected with the alarm detector, the changeover switch is a bidirectional switch including a first channel and a second channel, the first channel is connected between the power input port and the power output port, the second channel is connected between the power input port and the alarm power output port, and the changeover switch is connected with the control port and changed over the first channel and the second channel by control of alarm signals. The alarm system can control a power loop to be changed over circuit loops of the alarm and the electric appliance by using the bidirectional control switch, can give out alarm while disconnecting electricity, guarantees reliable power failure when detecting the alarm signals, and improves safety of coal mine production.
Description
Technical field
The utility model relates to a kind of warning system structure technology, relates in particular to a kind of warning system.
Background technology
In the Coal Production process, can produce toxic and harmful based on methane, be referred to as gas usually.When gas density surpassed certain numerical value, running into naked light will blast, and the gas explosion meeting produces high temperature, high pressure, shock wave, and give off poisonous gas, and miner's life security and national wealth caused serious threat.Mining equipment generally can be divided into intrinsically safe equipment and non-intrinsically safe safety-type equipment, and non-intrinsically safe safety-type equipment may produce spark in operation, and lights explosive atmosphere.Therefore, to the detection of gas density and extremely important in Safety of Coal Mine Production to the safety operation of non-intrinsically safe safety-type equipment.
In order to guarantee coal mine downhole safety production; warning system can be set usually monitor some important parameter; warning system generally includes Alarm Detector and alarm; Alarm Detector mostly is transducer and the support device that detects different parameters; alarm is one or more, reports to the police when receiving the alarm signal of Alarm Detector.For example firedamp sensor is exactly a kind of of Alarm Detector, and firedamp sensor is used to detect gas density, and judges whether gas concentration surpasses setting threshold.Usually can be provided with a plurality of firedamp sensors in the down-hole, to detect gas density.When firedamp sensor judged that gas density transfinites, supervisory control system indication gas alarm was reported to the police.If firedamp sensor does not possess the function of judging whether gas concentration transfinites, also the gas concentration that firedamp sensor can be collected sends monitoring system to and judges.Prior art can comprise tunnel, firedamp sensor place the electric device powers down of all non-intrinsically safe safety-types of working face when gas alarm is reported to the police.
The defective that above-mentioned warning system exists is: 1, firedamp sensor and circuit breaker apart from each other (section airway and crossheading circuit breaker be not in same level), when gas density transfinites, supervisory control system is cut off cut-off switch load side power supply, circuit breaker and cut-off switch show not obvious, can't differentiate cut-off switch power failure reason, the miner may be afraid of that influence is produced and blindness is thought the circuit breaker fault, gets rid of the circuit breaker locking by force and send electricity, and production causes great potential safety hazard to mine safety.2, the cut-off switch power down that causes of Circuits System switch fault or protection setting value discomfort, not obviously prompting, it is that what reason causes that the electrician can not correctly distinguish, and influences its handling failure progress.
The utility model content
The utility model provides a kind of warning system, to guarantee reliably to cut off the power supply the fail safe of raising Coal Production when detecting alarm signal.
The utility model embodiment provides a kind of warning system, comprises Alarm Detector and alarm, and wherein: also comprise two-way control switch, described two-way control switch comprises:
The power input mouth links to each other with power supply;
Output port of power source links to each other with power consumption equipment, to described power consumption equipment power supply;
The warning output port of power source links to each other with described alarm, reports to the police to drive to described alarm power supply;
Control port links to each other with described Alarm Detector, receives the alarm signal that described Alarm Detector produces;
Diverter switch, described diverter switch is the bidirectional switch that comprises first path and alternate path, described first path is connected between described power input mouth and the described output port of power source, described alternate path is connected between described power input mouth and the described warning output port of power source, described diverter switch links to each other with described control port, is switching between described first path and described alternate path under the control of described alarm signal.
Aforesaid warning system, described diverter switch are single-pole double-throw switch (SPDT), are described first path between the normally closed contact of described single-pole double-throw switch (SPDT) and the common junction, are described alternate path between the normal opened contact of described single-pole double-throw switch (SPDT) and the common junction.
Aforesaid warning system, described two-way control switch is a circuit breaker, the outage output contact of described circuit breaker is described control port, the power supply input contact of described circuit breaker is described power input mouth, the normally closed contact of described circuit breaker is described output port of power source, and the normal opened contact of described circuit breaker is described warning output port of power source.
Aforesaid warning system, described Alarm Detector are firedamp sensor, and described alarm is an audible-visual annunciator.
As shown from the above technical solution, the warning system that the utility model provides, utilize control signal that Alarm Detector provides two-way controllability in conjunction with two-way control switch, controlling electric power loop switches between the circuit loop of the circuit loop of alarm and power consumption equipment, can report to the police when then cutting off the power supply, thereby the reliable outage when having guaranteed to detect alarm signal, the fail safe that has improved Coal Production.
When adopting circuit breaker as two-way control switch, if can't normally send electricity owing to the circuit breaker fault, then alarm can not be reported to the police, and can judge the outage reason thus, can be to the circuit breaker place under repair.
Description of drawings
The structural representation of the warning system that Fig. 1 provides for the utility model embodiment one;
The structural representation of the warning system that Fig. 2 provides for the utility model embodiment two;
The structural representation of the warning system that Fig. 3 provides for the utility model embodiment three.
Reference numeral:
The 101-power supply; The 102-Alarm Detector; The 103-protector;
The 104-cut-off switch; The 105-alarm; The 106-power consumption equipment;
The two-way control switch of 107-; 207,307-circuit breaker.
Embodiment
Embodiment one
The structural representation of the warning system that Fig. 1 provides for the utility model embodiment one.As shown in Figure 1, this warning system comprises Alarm Detector 102 and alarm 105, Alarm Detector 102 is used for detecting according to demand the setup parameter of mine and requires in satisfied setting is to produce alarm signal, be that firedamp sensor is that example describes with Alarm Detector 102 in the present embodiment, when surpassing setting threshold, gas density produces the gas alarming signal, alarm 105 can be audible-visual annunciator, produces the sound and light alarm prompting.This warning system also comprises two-way control switch 107, is connected between Alarm Detector 102 and the alarm 105.Two-way control switch 107 comprises power input mouth, diverter switch, output port of power source, warning output port of power source and control port.The power input mouth links to each other with power supply 101, accepts power supply 101 power supplies; Output port of power source links to each other with power consumption equipment 106, to power consumption equipment 106 power supplies, concrete, can between output port of power source and power consumption equipment 106, connect cut-off switch 104, the control that cut-off switch 104 is subjected to two-way control switch 107 comes power consumption equipment 106 for outage; The warning output port of power source links to each other with alarm 105, reports to the police to drive alarm 105 to alarm 105 power supplies; Control port links to each other with Alarm Detector 102, receives the alarm signal that Alarm Detector 102 produces; Diverter switch is the bidirectional switch that comprises first path and alternate path, first path is connected between power input mouth and the output port of power source, alternate path is connected between power input mouth and the warning output port of power source, diverter switch links to each other with control port, is switching between first path and alternate path under the control of alarm signal.Be that power input mouth and output port of power source form circuit loop by first path, power input mouth and warning output port of power source form circuit loop by alternate path, diverter switch is switched between first path and alternate path, make the power input mouth switchably link to each other, to power to power consumption equipment 106 or alarm 105 with output port of power source or warning output port of power source.
The warning system of present embodiment comprises two kinds of operating states, i.e. power supply state and alarm condition.Under power supply state, by power supply 101, to power to power consumption equipment 106 through first path, the output port of power source of power input mouth, diverter switch closure, this moment, alternate path disconnected, can't be to alarm 105 power supplies, so alarm 105 is not reported to the police.Under alarm condition, Alarm Detector 102 produces alarm signal, first path of control its switch disconnects, the alternate path closure, then power supply 101 is powered to alarm 105 through alternate path, the warning output port of power source of power input mouth, diverter switch closure, and stop, thereby realized outage warning simultaneously to power consumption equipment 106 power supplies.
Concrete, Alarm Detector 102 can detect the concentration of gas in the colliery, and the quantity of Alarm Detector 102 can be arranged in the digging laneway of colliery for a plurality of.Alarm Detector 102 detected gas concentrations can judge that when judging that gas concentration surpasses the preset concentration value, promptly gas density transfinites by the control unit of Alarm Detector 102 etc., just indicate the diverter switch action of two-way control switch 107.
Cut-off switch 104 can also comprise protector 103, and cut-off switch 104 is connected with two-way control switch 107 by protector 103, to improve miner's electrical safety.
The warning system that present embodiment provides can be implemented in when reporting to the police on the one hand reliably cuts off the power supply, and in the time of to power consumption equipment 106 load side power cut-off lockings, alarm 105 is reported to the police.On the other hand can be by obtaining of alarm 105 alarm condition judged the reason of cutting off the power supply in the colliery.Concrete determination methods is: if alarm 105 is reported to the police, cut-off switch 104 outages illustrates that this moment, gas density transfinited, and the electrician must not forced power transmission, should wait alarm 105 and stop to report to the police, and the gas concentration in the place that powers is lower than alarming value, can send; If cut-off switch 104 outage, but alarm 105 do not report to the police, and illustrates that two-way control switch 107 has moved, and then can be judged as alarm 105 faults, and not produce alarm condition, and should overhaul this moment to alarm 105; If cut-off switch 104 does not cut off the power supply; but alarm 105 is reported to the police; then can being judged as at this moment, gas density transfinites; and cut-off switch 104 or be specially protector 103 faults in the cut-off switch 104; just should overhaul cut-off switch 104; and must cut off the power supply by hand immediately, to improve the fail safe of Coal Production.
In concrete the application, diverter switch can be single-pole double-throw switch (SPDT), it between the normally closed contact of single-pole double-throw switch (SPDT) and the common junction first path, be alternate path between the normal opened contact of single-pole double-throw switch (SPDT) and the common junction, the switching of diverter switch i.e. switching between normally closed contact and normal opened contact.
Embodiment two
The structural representation of the warning system that Fig. 2 provides for the utility model embodiment two specifically adopts circuit breaker as two-way control switch.As shown in Figure 2, the outage output contact of circuit breaker 207 can be used as the control port of two-way control switch, the power supply input contact of circuit breaker 207 can be used as the power input mouth of two-way control switch, the normally closed contact of circuit breaker 207 can be used as the output port of power source of two-way control switch, and the normal opened contact of circuit breaker 207 can be used as the warning output port of power source of two-way control switch.
Specifically can receive power supply and alarm signal by quad, quad can be distinguished with the white green four kinds of colors of red indigo plant, wherein red, blue cable is used for the power supply input contact of circuit breaker 207 is connected to power supply 101, power supply 101 is specifically as follows the power supply box of Monitor Sub-Station of Less, and white, green cable is used for the outage output contact of circuit breaker 207 is connected to Alarm Detector 102.Alarm 105 is connected with the normal opened contact of circuit breaker 207, power consumption equipment 106 is connected with the normally closed contact of circuit breaker 207, power consumption equipment 106 specifically can link to each other with normally closed contact by a cut-off switch 104, when circuit breaker 207 stopped to cut-off switch 104 power supplies, then cut-off switch 104 load loops disconnected and stopping to power consumption equipment 106 power supplies.Concrete, cut-off switch 104 also comprises protector 103, cut-off switch 104 is connected with the normally closed contact of circuit breaker 207 by protector 103, to improve miner's Electrical Safety.When Alarm Detector 102 judges that gas concentration transfinites, 207 actions of indication circuit breaker, normally closed contact disconnect with power supply input contact and being connected, and cut-off switch 104 cuts off the power supply of power consumption equipment 106, normal opened contact is connected with power supply input contact, and alarm 105 is reported to the police.
The technical scheme of present embodiment, can directly adopt circuit breaker in the mine power supply system as the two-way control switch of warning system, connection Alarm Detector and alarm get final product on circuit breaker, 18～24V direct current intrinsic safety type power supply of Monitor Sub-Station of Less output can directly drive circuit breaker, available again this 18～24V direct current intrinsic safety type power drives alarm of circuit breaker can reduce the equipment improvement cost.
Embodiment three
The structural representation of the warning system that Fig. 3 provides for the utility model embodiment three.As shown in Figure 3, the outage output contact of circuit breaker 307 is the control port of two-way control switch, the power supply input contact of circuit breaker 307 is the power input mouth of two-way control switch, the normally closed contact of circuit breaker 307 is the output port of power source of two-way control switch, and the normal opened contact of circuit breaker 307 is the warning output port of power source of two-way control switch.Circuit breaker 307 is same as the previously described embodiments with the connected mode of other equipment of warning system, and this repeats no more.
In the above-described embodiments, Alarm Detector is preferably firedamp sensor, and alarm is preferably audible-visual annunciator.Circuit breaker, firedamp sensor and audible-visual annunciator all are equipment commonly used in the Coal Production, draw materials conveniently, the mine of directly drawing materials is now used gas-monitoring equipment, do not need other procuring equipment and lay monitoring circuit, just alarm probe is attached to circuit breaker and gets final product, therefore do not need to improve the fail safe that production cost just can improve Coal Production.
The warning system that the utility model provides, utilize the two-way controllability of two-way control switch, controlling electric power loop switches between the circuit loop of the circuit loop of alarm and power consumption equipment, can report to the police when then cutting off the power supply, thereby the reliable outage when having guaranteed to detect alarm signal, the fail safe that has improved Coal Production.When adopting circuit breaker as two-way control switch, if can't normally send electricity owing to the circuit breaker fault, then alarm can not be reported to the police, and can judge the outage reason thus, can be to the circuit breaker place under repair.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (4)
1. a warning system comprises Alarm Detector and alarm, it is characterized in that: also comprise two-way control switch, described two-way control switch comprises:
The power input mouth links to each other with power supply;
Output port of power source links to each other with power consumption equipment, to described power consumption equipment power supply;
The warning output port of power source links to each other with described alarm, reports to the police to drive to described alarm power supply;
Control port links to each other with described Alarm Detector, receives the alarm signal that described Alarm Detector produces;
Diverter switch, described diverter switch is the bidirectional switch that comprises first path and alternate path, described first path is connected between described power input mouth and the described output port of power source, described alternate path is connected between described power input mouth and the described warning output port of power source, described diverter switch links to each other with described control port, is switching between described first path and described alternate path under the control of described alarm signal.
2. warning system according to claim 1 is characterized in that:
Described diverter switch is a single-pole double-throw switch (SPDT), is described first path between the normally closed contact of described single-pole double-throw switch (SPDT) and the common junction, is described alternate path between the normal opened contact of described single-pole double-throw switch (SPDT) and the common junction.
3. warning system according to claim 1 is characterized in that:
Described two-way control switch is a circuit breaker, the outage output contact of described circuit breaker is described control port, the power supply input contact of described circuit breaker is described power input mouth, the normally closed contact of described circuit breaker is described output port of power source, and the normal opened contact of described circuit breaker is described warning output port of power source.
4. according to claim 1 or 2 or 3 described warning systems, it is characterized in that: described Alarm Detector is a firedamp sensor, and described alarm is an audible-visual annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202964225U CN201766344U (en) | 2010-08-17 | 2010-08-17 | Alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202964225U CN201766344U (en) | 2010-08-17 | 2010-08-17 | Alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201766344U true CN201766344U (en) | 2011-03-16 |
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ID=43718951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202964225U Expired - Fee Related CN201766344U (en) | 2010-08-17 | 2010-08-17 | Alarm system |
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| Country | Link |
|---|---|
| CN (1) | CN201766344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094940A (en) * | 2011-11-03 | 2013-05-08 | 无锡华润上华科技有限公司 | Uninterruptible power supply device |
| CN109782777A (en) * | 2019-03-29 | 2019-05-21 | 北京汇通天下物联科技有限公司 | A kind of anti-tired integrated machine equipment fault remote automatic diagnosis method of anticollision |
-
2010
- 2010-08-17 CN CN2010202964225U patent/CN201766344U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094940A (en) * | 2011-11-03 | 2013-05-08 | 无锡华润上华科技有限公司 | Uninterruptible power supply device |
| CN109782777A (en) * | 2019-03-29 | 2019-05-21 | 北京汇通天下物联科技有限公司 | A kind of anti-tired integrated machine equipment fault remote automatic diagnosis method of anticollision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20140817 |
|
| EXPY | Termination of patent right or utility model |