CN219497224U - Colliery electrical apparatus cable conflagration analogue test device - Google Patents
Colliery electrical apparatus cable conflagration analogue test device Download PDFInfo
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- CN219497224U CN219497224U CN202320263247.7U CN202320263247U CN219497224U CN 219497224 U CN219497224 U CN 219497224U CN 202320263247 U CN202320263247 U CN 202320263247U CN 219497224 U CN219497224 U CN 219497224U
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Abstract
The utility model relates to the technical field of fire safety, in particular to a coal mine electrical appliance cable fire simulation test device which comprises an electrical appliance cable igniter, a coal seam igniter, a gas valve, a smoke generator, a lighting device, a combustible gas sensor, a temperature sensor and a controller, wherein the lighting device is connected with the electrical appliance cable igniter; the electric appliance cable igniter is used for igniting the electric appliance cable for the test; the coal bed igniter is used for converting current to generate open flame; the combustible gas sensor detects the concentration value of the combustible gas in the test area and feeds back a combustible gas detection signal to the controller; the temperature sensor detects the temperature value of the test area and feeds back a temperature detection signal to the controller; the controller is used for controlling the on-off of the electric appliance cable igniter; the gas valve is also used for controlling the opening and closing of the gas valve according to the combustible gas detection signal; and the device is also used for controlling the opening and closing of the smoke generator, the lighting device and the coal seam igniter according to the temperature detection signal. By adopting the scheme, the fire disaster simulation reality can be increased, and the fire disaster simulation effect is improved.
Description
Technical Field
The utility model relates to the technical field of fire safety, in particular to a coal mine electrical appliance cable fire simulation test device.
Background
Fire accidents are a common accident disaster, and are diversified according to specific fire characteristics and occurrence environments. When electricity is used underground, fire disasters, namely fire disasters of electric appliances and cables, are caused by internal combustion of electric appliances and cables or combustion of combustible materials such as coal, timber and the like due to electric sparks, electric arcs and high temperature factors. When the coal bed is exposed to air, the temperature is gradually increased due to oxidation heat release, the temperature increasing speed is suddenly increased after the temperature reaches 70-80 ℃, and when the ignition point (300-350 ℃) of the coal is reached, the combustion is caused, namely the fire disaster of the coal bed.
In the field of coal mines, the probability of occurrence of electric cable fires and coal seam fires is extremely high, so rescue training for the fires is indispensable. For rescue workers, the requirements of rescue training cannot be met at all only by theoretical learning, and general rescue exercise training can only aim at certain specific fire types. For fire rescue workers, the development of base, simulation and actual combat training becomes a necessary way for improving the rescue skills of the workers, and the actual fire simulation training is used as an important component of the 'three-dimensional' training, so that the training effect has obvious advantages compared with the traditional training mode. In recent years, mine rescue teams and training institutions in various places have great interest in training exercise systems with real fire simulation, and trained personnel are expected to face real flames and stress situations through the training exercise systems, so that realistic actual experience is brought to people, and the actual combat level of the trained personnel is improved. However, the existing actual combat training is generally only simulated for flames on fire sites, and does not actually fit the scenes of electric appliance cable fires and coal seam fire sites in the field of coal mines. Therefore, it is urgently needed to provide a fire simulation test device for the electric cables of the coal mine so as to increase the fire simulation authenticity and improve the fire simulation effect.
Disclosure of Invention
The utility model provides a fire simulation test device for a cable of a coal mine electrical appliance, which can increase the fire simulation authenticity and improve the fire simulation effect.
In order to achieve the above object, the basic scheme of the present utility model is as follows:
the utility model provides a colliery electrical cable conflagration analogue test device, includes electrical cable, electrical cable igniter, coal seam igniter, gas valve, smoke generator, light device, combustible gas sensor, temperature sensor and controller for the test;
the electric appliance cable igniter, the coal seam igniter, the gas valve, the smoke generator, the lighting device, the combustible gas sensor and the temperature sensor are all electrically connected with the controller;
the electric appliance cable igniter is used for igniting the electric appliance cable for the test;
the coal bed igniter is used for converting current to generate open flame;
the combustible gas sensor detects the concentration value of the combustible gas in the test area and feeds back a combustible gas detection signal to the controller;
the temperature sensor detects the temperature value of the test area and feeds back a temperature detection signal to the controller;
the controller is used for controlling the on-off of the electric appliance cable igniter; the gas valve is also used for controlling the opening and closing of the gas valve according to the combustible gas detection signal; and the device is also used for controlling the opening and closing of the smoke generator, the lighting device and the coal seam igniter according to the temperature detection signal.
Further, a gas supply device is also included for supplying gas to the gas valve.
Further, the system also comprises a PC end; the controller is a PLC controller;
the PC end is electrically connected with the controller;
the PLC is used for receiving the command signal of the PC end and controlling the on-off of the cable igniter, the gas valve, the smoke generator, the lighting device and the coal seam igniter of the electrical appliance according to the command signal of the PC end.
Further, the display screen is also included;
the display screen is electrically connected with the controller;
the controller is also used for controlling the display content of the display screen according to the combustible gas detection signal and the temperature detection signal.
Further, the device also comprises a toxic and harmful gas sensor;
the toxic and harmful gas sensor is electrically connected with the controller;
the toxic and harmful gas sensor detects the concentration value of toxic and harmful gas in the test area and feeds back a toxic and harmful gas detection signal to the controller;
the controller is also used for controlling the display content of the display screen according to the toxic and harmful gas detection signals.
Further, the device also comprises an oxygen sensor;
the oxygen sensor is electrically connected with the controller;
the oxygen sensor detects the oxygen concentration value of the test area and feeds back an oxygen detection signal to the controller;
the controller is also used for controlling the display content of the display screen according to the oxygen detection signal.
Further, the controller is further used for controlling the lighting color of the lighting device according to the oxygen detection signal.
Further, a timer is included;
the timer is electrically connected with the controller;
the controller is also used for controlling the opening and closing of the combustible gas sensor, the temperature sensor, the toxic and harmful gas sensor and the oxygen sensor according to the timing signals of the timer.
The principle and the advantages of the utility model are as follows:
1. the electric spark can simulate the fire scene of the electric cable by igniting the electric cable for test, so that the fire simulation scene is more lifelike. According to the combustible gas detection signal, the gas valve is controlled to be opened and closed, so that after the gas valve is opened, when the generated combustible gas reaches a threshold value required by a test, the gas valve is controlled to be closed, the concentration value of the combustible gas in a test area is maintained in the range of the concentration value of the combustible gas in a real fire scene, and the authenticity of fire simulation is further improved. According to the temperature detection signal, the smoke generator, the lighting device and the coal seam igniter are controlled to be turned on and turned off, so that after the temperature reaches the fire scene simulation requirement, the smoke generator, the lighting device and the coal seam igniter can be turned on, and the test cost is saved. And the smoke generator can simulate dense smoke on a fire scene, and the lighting device can further improve the simulation effect on the fire scene through the light effect. To sum up, adopting this scheme, can increasing fire simulation authenticity, promote fire simulation effect.
2. The display screen is used for controlling the operation of each device through the PC end according to the toxic and harmful gas detection signals, the oxygen detection signals, the combustible gas detection signals and the temperature detection signals, so that a user can grasp each index of a test area through the display screen.
3. And the controller (PLC controller, programmable logic controller) is used for controlling the lighting color of the lighting device according to the oxygen detection signal. Therefore, when the flame on the fire scene is not red (the gas presents bright blue flame when the gas is completely combusted), the combustion effect of the flame is more practical by controlling the lighting color of the lighting device.
Drawings
Fig. 1 is a schematic signal flow diagram of a fire simulation test device for a cable of a coal mine electrical appliance according to an embodiment of the utility model.
Detailed Description
The following is a further detailed description of the embodiments:
example 1:
example 1 is substantially as shown in figure 1:
the utility model provides a colliery electrical cable conflagration analogue test device, includes that electrical cable is used in the test, electrical cable igniter, coal seam igniter, gas valve, smoke generator, light device, combustible gas sensor, temperature sensor, poisonous and harmful gas sensor, oxygen sensor, time-recorder, controller, PC end and display screen; the timer, the oxygen sensor, the toxic and harmful gas sensor, the display screen, the PC end, the electric appliance cable igniter, the coal seam igniter, the gas valve, the gas supply device, the smoke generator, the lighting device, the combustible gas sensor and the temperature sensor are all electrically connected with the controller. In the embodiment, the electric cable igniter and the coal seam igniter are both igniters with the model number BWGD-12; the model of the gas valve is HSFB-15; the model of the smoke generator is DF3000; the lighting device is an LED lamp; the model of the combustible gas sensor is SEN-COM; the model of the temperature sensor is a K-type thermocouple; the toxic and harmful gas sensor specifically adopts a carbon monoxide sensor, and the model of the carbon monoxide sensor is TGS5141; the model of the oxygen sensor is SEN-EDL-O2; the controller is a PLC controller, and the model is S7-200; the model of the PC end is IPC-610L; the model of the display screen is E2220.
The controller is used for receiving the command signal of the PC end and controlling the on-off of the cable igniter, the gas valve, the smoke generator, the lighting device and the coal seam igniter of the electrical appliance according to the command signal of the PC end; and the device is also used for controlling the opening and closing of the combustible gas sensor, the temperature sensor, the toxic and harmful gas sensor and the oxygen sensor according to the timing signals of the timer.
When a user needs to perform fire simulation training, a command for starting the simulation training can be input through the PC end, the simulation of two fire sites can be performed simultaneously, and single fire simulation can be performed independently. In other embodiments of the present application, the flash fire scene may also be simulated based on the combustion characteristics of the flash. ( Flash fires generally occur in a confined space where a fire is initiated because of the accumulation of a large amount of combustible materials in the field, which, after combustion in the confined space, produces a large amount of aerosol-forming smoke layers which convect elsewhere in the room and cause heat radiation to these places. And objects in these places begin to thermally decompose under the influence of the heat radiation, producing combustible gases (mainly carbon monoxide). When the temperature is continuously increased to over 650 ℃, carbon monoxide in the dense smoke accumulated at the top of the fire scene is changed into combustible gas (the self-ignition temperature of the carbon monoxide is 609 ℃), so that the gas is automatically ignited by the high temperature of the fire scene in one to two seconds, and then the whole scene of fire is caused. )
After the user inputs the fire analog signal, the controller receives the instruction signal of the PC end, controls the electric appliance cable igniter, the gas valve and the coal seam igniter to be started, and controls the smoke generator and the lighting device to enter a standby state. After receiving the instruction signal of the PC end, the controller controls the on-off of the combustible gas sensor, the temperature sensor, the toxic and harmful gas sensor and the oxygen sensor according to the timing signal of the timer, so that the power consumption of each sensor is reduced. In this embodiment, the timer uses a timing circuit formed by 555 timing chips.
The electric appliance cable igniter is used for igniting the electric appliance cable for the test, and after the electric appliance cable is successfully ignited, an electric spark is generated; the gas supply device is used for supplying gas to the gas valve, and supplying gas to the test area after the gas valve is opened; the coal bed igniter is used for converting current to generate open flame, and the temperature of a test area is increased while flame simulation is realized.
The combustible gas sensor detects the concentration value of the combustible gas in the test area and feeds back a combustible gas detection signal to the controller, and the principle is that when the combustible gas enters the detector, oxidation reaction (flameless combustion) is caused on the surface of the platinum wire, the generated heat increases the temperature of the platinum wire, and the resistivity of the platinum wire changes. The toxic and harmful gas sensor detects the concentration value of toxic and harmful gas in the test area and feeds back a toxic and harmful gas detection signal to the controller; the oxygen sensor detects the oxygen concentration value of the test area and feeds back an oxygen detection signal to the controller; the temperature sensor detects the temperature value of the test area and feeds back a temperature detection signal to the controller;
the controller is further configured to control on/off of the gas valve according to the flammable gas detection signal, and in this embodiment, after the flammable gas in the test area reaches the flammable gas concentration threshold, control the gas valve to close; the controller is also used for controlling the opening and closing of the smoke generator, the lighting device and the coal seam igniter according to the temperature detection signal, and in the embodiment, when the temperature value of the temperature detection signal display test area is higher than the preset temperature, the smoke generator and the lighting device are controlled to be started, and the coal seam igniter is controlled to be closed.
The controller is also used for controlling the display content of the display screen according to the oxygen detection signal, the toxic and harmful gas detection signal, the combustible gas detection signal and the temperature detection signal so as to display various numerical values. Therefore, the user can grasp various indexes of the test area through the display screen, and the operation of various devices can be controlled conveniently through the PC end.
Example 2:
the basic principle of example 2 is the same as that of example 1, except that in example 2, the simulation of the gas combustion fire scene can be performed. The main components of the gas are alkanes, wherein methane is the predominant part, and small amounts of ethane, propane and butane are added, and hydrogen sulfide, carbon dioxide, nitrogen and moisture are also contained, and trace amounts of inert gases such as helium and argon. The gas exhibits a bright blue flame when it burns completely and the flame will redly when it burns incompletely.
Therefore, in the scheme, the controller is also used for controlling the lighting color of the lighting device according to the oxygen detection signal. When the oxygen detection signal detects that the oxygen value of the test area is lower than the oxygen concentration threshold value, controlling the lighting color of the lighting device to be red; otherwise, the lighting color of the lighting device is controlled to be blue, and the lighting areas of the lighting device are flame burning areas.
The foregoing is merely exemplary of the present utility model, and the specific structures and features well known in the art are not described in any way herein, so that those skilled in the art will be able to ascertain all prior art in the field, and will not be able to ascertain any prior art to which this utility model pertains, without the general knowledge of the skilled person in the field, before the application date or the priority date, to practice the present utility model, with the ability of these skilled persons to perfect and practice this utility model, with the help of the teachings of this application, with some typical known structures or methods not being the obstacle to the practice of this application by those skilled in the art. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
1. The utility model provides a colliery electrical apparatus cable conflagration analogue test device which characterized in that: the device comprises a test electrical cable, an electrical cable igniter, a coal seam igniter, a gas valve, a smoke generator, a lighting device, a combustible gas sensor, a temperature sensor and a controller;
the electric appliance cable igniter, the coal seam igniter, the gas valve, the smoke generator, the lighting device, the combustible gas sensor and the temperature sensor are all electrically connected with the controller;
the electric appliance cable igniter is used for igniting the electric appliance cable for the test;
the coal bed igniter is used for converting current to generate open flame;
the combustible gas sensor detects the concentration value of the combustible gas in the test area and feeds back a combustible gas detection signal to the controller;
the temperature sensor detects the temperature value of the test area and feeds back a temperature detection signal to the controller;
the controller is used for controlling the on-off of the electric appliance cable igniter; the gas valve is also used for controlling the opening and closing of the gas valve according to the combustible gas detection signal; and the device is also used for controlling the opening and closing of the smoke generator, the lighting device and the coal seam igniter according to the temperature detection signal.
2. The coal mine electrical cable fire simulation test device according to claim 1, wherein: and a gas supply device for supplying gas to the gas valve.
3. The coal mine electrical cable fire simulation test device according to claim 1, wherein: the system also comprises a PC end; the controller is a PLC controller;
the PC end is electrically connected with the controller;
the PLC is used for receiving the command signal of the PC end and controlling the on-off of the cable igniter, the gas valve, the smoke generator, the lighting device and the coal seam igniter of the electrical appliance according to the command signal of the PC end.
4. The coal mine electrical cable fire simulation test device according to claim 1, wherein: the display screen is also included;
the display screen is electrically connected with the controller;
the controller is also used for controlling the display content of the display screen according to the combustible gas detection signal and the temperature detection signal.
5. The coal mine electrical cable fire simulation test device according to claim 4, wherein: the device also comprises a toxic and harmful gas sensor;
the toxic and harmful gas sensor is electrically connected with the controller;
the toxic and harmful gas sensor detects the concentration value of toxic and harmful gas in the test area and feeds back a toxic and harmful gas detection signal to the controller;
the controller is also used for controlling the display content of the display screen according to the toxic and harmful gas detection signals.
6. The coal mine electrical cable fire simulation test device according to claim 5, wherein: also comprises an oxygen sensor;
the oxygen sensor is electrically connected with the controller;
the oxygen sensor detects the oxygen concentration value of the test area and feeds back an oxygen detection signal to the controller;
the controller is also used for controlling the display content of the display screen according to the oxygen detection signal.
7. The coal mine electrical cable fire simulation test device according to claim 6, wherein: the controller is also used for controlling the lighting color of the lighting device according to the oxygen detection signal.
8. The coal mine electrical cable fire simulation test device according to claim 6, wherein: also includes a timer;
the timer is electrically connected with the controller;
the controller is also used for controlling the opening and closing of the combustible gas sensor, the temperature sensor, the toxic and harmful gas sensor and the oxygen sensor according to the timing signals of the timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320263247.7U CN219497224U (en) | 2023-02-20 | 2023-02-20 | Colliery electrical apparatus cable conflagration analogue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320263247.7U CN219497224U (en) | 2023-02-20 | 2023-02-20 | Colliery electrical apparatus cable conflagration analogue test device |
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| Publication Number | Publication Date |
|---|---|
| CN219497224U true CN219497224U (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320263247.7U Active CN219497224U (en) | 2023-02-20 | 2023-02-20 | Colliery electrical apparatus cable conflagration analogue test device |
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| CN (1) | CN219497224U (en) |
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- 2023-02-20 CN CN202320263247.7U patent/CN219497224U/en active Active
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