CN202976385U - Mining fire alarm device - Google Patents
Mining fire alarm device Download PDFInfo
- Publication number
- CN202976385U CN202976385U CN 201220749125 CN201220749125U CN202976385U CN 202976385 U CN202976385 U CN 202976385U CN 201220749125 CN201220749125 CN 201220749125 CN 201220749125 U CN201220749125 U CN 201220749125U CN 202976385 U CN202976385 U CN 202976385U
- Authority
- CN
- China
- Prior art keywords
- spring
- shape memory
- temperature controller
- memory alloy
- explosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Fire Alarms (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The utility model discloses a mining fire alarm device, comprising a fixed outer shell and an alarm circuit, wherein the alarm circuit comprises a security grid, a low-voltage power supply, an explosion-proof sound-light alarm, a signal generator and a temperature controller; the low-voltage power supply, the explosion-proof sound-light alarm are connected with the signal generator in series, and are together connected at an input end of the security grid, and an output end of the security grid is connected with the temperature controller; and the temperature controller comprises a shape memory alloy spring, an ordinary spring and a switch composed of a spring sheet, two end heads of the switch are connected with the output end of the security grid, one end of the shape memory alloy spring is in insulation connection with the spring sheet, the other end is connected with the fixed outer shell, one end of the ordinary spring is in insulation connection with the spring sheet, and the other end is connected with the fixed outer shell. The mining fire alarm device has simple structure and high reliability, and can identify fire situations timely.
Description
Technical field
The utility model relates to a kind of warning device, is specifically related to a kind of mining fire alarm installation.
Background technology
A large amount of flammable explosive gas is arranged in mine, its fire alarm installation is compared other local fire alarm installation and is required stricter, all be provided with safety barrier (be used for restriction and be sent to on-the-spot electric current and voltage, avoid producing the spark of igniting gas) in mining fire alarm installation.When fire occurs, on-the-spot temperature is an important criterion, and whether fire alarm installation is mainly to identify fire by temperature controller to occur, temperature controller in existing mining fire alarm installation mainly adopts the resistance-type temperature controller, this temperature controller is in the situation that environment is more abominable, poor reliability, and its response speed to temperature is slower, can not in time identify fire condition.
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, reliability is high and can in time identify the mining fire alarm installation of fire condition.
Mining fire alarm installation described in the utility model, consisted of by fixed housing and warning circuit, described warning circuit comprises safety barrier, low-tension supply, explosion-proof audible-visual annunciator, signal generator and temperature controller, described low-tension supply, explosion-proof audible-visual annunciator and signal generator series connection, and together being connected to the input end of safety barrier, the output terminal of safety barrier is connected with temperature controller; Described temperature controller comprises shape memory alloy spring, common spring and the switch that is made of spring leaf, the two ends of this switch is connected with the output terminal of safety barrier, one end of shape memory alloy spring is connected with the spring leaf insulation, the other end is connected with fixed housing, one end of common spring is connected with the spring leaf insulation, and the other end is connected with fixed housing.
Its alarm principle is as follows:
Shape memory alloy spring is temperature-sensitive and driving element, has shape memory function, and setting its phase point temperature is alarm temperature, utilizes shape memory alloy spring to experience variation of ambient temperature.When on-the-spot breaking out of fire, when its environment temperature reaches the phase point temperature of shape memory alloy spring setting, the shape memory alloy spring elongation, a driving force part that produces is used for common spring is elongated, and another part is used for promoting spring leaf, and spring leaf rotates and makes switch closed, current supply circuit is switched on, explosion-proof audible-visual annunciator gets the electric sound and light alarm that sends, and signal generator gets electric, sends fire signal and passes to zone or control center of general headquarters; After the environment temperature at scene is reduced to phase transition temperature lower than shape memory alloy spring, shape memory alloy spring recovers original state, common spring contraction produces pulling force and pulls spring leaf, switch is disconnected, current supply circuit is cut off, explosion-proof audible-visual annunciator and signal generator dead electricity, stop alarm.Safety barrier is used for the voltage between the limit switch two ends, produces the spark that is enough to ignite gas when avoiding or disconnection closed at switch.
The utility model is simple in structure, and reliability is higher,, can in time identify fire condition when fire occurs, and send alerting signal than piece the response speed of temperature, for the more time has been won in rescue under the ore deposit.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
mining fire alarm installation as shown in Fig. 1, consisted of by fixed housing and warning circuit, warning circuit comprises safety barrier 1, low-tension supply 2, explosion-proof audible-visual annunciator 3, signal generator 4, the switch that is consisted of by spring leaf 5, shape memory alloy spring 6 and common spring 7, low-tension supply 2, explosion-proof audible-visual annunciator 3 and signal generator 4 series connection, and together be connected to the input end of safety barrier 1, the output terminal of safety barrier 1 is connected with the two ends of switch, spring leaf 5 is connected on one of them termination of switch, one end of shape memory alloy spring 6 is connected with spring leaf 5 insulation, the other end is connected with fixed housing, one end of common spring 7 is connected with spring leaf 5 insulation, the other end is connected with fixed housing.Explosion-proof audible-visual annunciator 3 adopts the audible-visual annunciator of selling on the market, has explosion-resistant enclosure, and sound and light can cover on every side more than 60 square metres when reporting to the police; Signal generator 4 adopts pulse signal generator, and the outside has explosion-resistant enclosure, and its signal output part is connected to zone or control center of general headquarters by communication cable, when reporting to the police, sends pulse signal; Safety barrier 1 adopts the Zener type safety barrier, need reliable ground, and the outside also has explosion-resistant enclosure; Shape memory alloy spring 6 according to the actual field needs, is temperature with reference to corresponding deformation mechanism---the mathematical model of deformation is selected corresponding shape memory metal element, can select Au-Cd, Ag-Cd, Cu-Zn etc.; The switch, shape memory alloy spring, the common spring that are made of spring leaf 5 all are contained in fixed housing, and this fixed housing has explosion prevention function, and fixed housing is arranged on mine wall; Whole fire alarm installation is arranged in mine and passes through the earth stud reliable ground.
Its alarm procedure is as follows:
When on-the-spot breaking out of fire, when its environment temperature reaches the phase point temperature of shape memory alloy spring 6 settings, shape memory alloy spring 6 elongations, a driving force part that produces is used for common spring 7 is elongated, and another part is used for promoting spring leaf 5, and spring leaf 5 rotates and makes switch closed, current supply circuit is switched on, explosion-proof audible-visual annunciator 3 gets the electric sound and light alarm that sends, and signal generator 4 gets electric, sends fire signal with impulse form and passes to zone or control center of general headquarters; After the environment temperature at scene is reduced to phase transition temperature lower than shape memory alloy spring 6, shape memory alloy spring 6 recovers original state, common spring 7 shrinks the generation pulling force and pulls spring leaf 5, switch is disconnected, current supply circuit is cut off, explosion-proof audible-visual annunciator 3 and signal generator 4 dead electricity, stop alarm.
Claims (1)
1. mining fire alarm installation, consisted of by fixed housing and warning circuit, described warning circuit comprises safety barrier (1), low-tension supply (2), explosion-proof audible-visual annunciator (3), signal generator (4) and temperature controller, described low-tension supply (2), explosion-proof audible-visual annunciator (3) and signal generator (4) series connection, and together being connected to the input end of safety barrier (1), the output terminal of safety barrier (1) is connected with temperature controller; It is characterized in that: described temperature controller comprises shape memory alloy spring (6), common spring (7) and the switch that is made of spring leaf (5), the two ends of this switch is connected with the output terminal of safety barrier (1), one end of shape memory alloy spring (6) is connected with spring leaf (5) insulation, the other end is connected with fixed housing, one end of common spring (7) is connected with spring leaf (5) insulation, and the other end is connected with fixed housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749125 CN202976385U (en) | 2012-12-31 | 2012-12-31 | Mining fire alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749125 CN202976385U (en) | 2012-12-31 | 2012-12-31 | Mining fire alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976385U true CN202976385U (en) | 2013-06-05 |
Family
ID=48517430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220749125 Expired - Fee Related CN202976385U (en) | 2012-12-31 | 2012-12-31 | Mining fire alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976385U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978465A (en) * | 2017-12-13 | 2018-05-01 | 湖南省湘电试验研究院有限公司 | High-tension switch cabinet contact heating alarm device, high-tension switch cabinet and application process |
| CN112945402A (en) * | 2021-02-07 | 2021-06-11 | 国网江苏省电力有限公司电力科学研究院 | Cable channel fire early warning device and early warning method thereof |
-
2012
- 2012-12-31 CN CN 201220749125 patent/CN202976385U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978465A (en) * | 2017-12-13 | 2018-05-01 | 湖南省湘电试验研究院有限公司 | High-tension switch cabinet contact heating alarm device, high-tension switch cabinet and application process |
| CN112945402A (en) * | 2021-02-07 | 2021-06-11 | 国网江苏省电力有限公司电力科学研究院 | Cable channel fire early warning device and early warning method thereof |
| CN112945402B (en) * | 2021-02-07 | 2024-02-02 | 国网江苏省电力有限公司电力科学研究院 | Cable channel fire early warning device and early warning method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201656470U (en) | Lightning protection circuit with overcurrent protection function | |
| CN202976385U (en) | Mining fire alarm device | |
| CN205127247U (en) | Temperature sensing self -starting formula aerosol extinguishing device | |
| CN202940565U (en) | Intelligent protection system for photovoltaic confluence inverter | |
| CN103839473A (en) | Electrical fire scene experience device and control method thereof | |
| CN202205314U (en) | Intelligent fire-fighting linkage system for buildings | |
| CN103036204B (en) | Dual-mode type automatic triggering fireproof protection device for photovoltaic combiner box | |
| CN203520554U (en) | Wireless GPRS electric safety supervision system | |
| CN202183151U (en) | Wireless temperature sensing system of fire hazard monitoring system | |
| CN202121290U (en) | Novel arc extinguishing type electrical fireproof short circuit protection device | |
| CN202210672U (en) | Circuit protector | |
| CN203367185U (en) | Circuit breaker controlled by sensor | |
| CN203539948U (en) | Automatic high-temperature fire extinguishment starting device | |
| CN209844117U (en) | Intelligent socket with lightning protection function | |
| CN102253303A (en) | Arrangement to detect fault electrical connection | |
| CN216676776U (en) | Feedback device of automatic fire extinguishing equipment of wind generating set | |
| CN102982642A (en) | Electrical box failure processing device | |
| CN203520562U (en) | GPRS-based wireless intelligent electric safety monitoring system | |
| CN103400728A (en) | Circuit breaker controlled by sensor | |
| CN201084649Y (en) | A disengaging device used on arrester | |
| CN102793994B (en) | Automatic control device with explosive fire-extinguishing and power-control functions | |
| CN202579007U (en) | Motorcycle igniting circuit with anti-theft function | |
| CN204741262U (en) | Earth connection earthleakage protective equipment | |
| CN203037366U (en) | Laser temperature alarm device | |
| CN202059698U (en) | Burning alarm power-off heat insulation electric cabinet |
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: 20130605 Termination date: 20131231 |