Well lane hot air heating toxic gas alarm and automatic control air supply and exhaust device

Abstract

The utility model provides a roadway hot air heating toxic gas alarm and automatic control air supply and exhaust device, and belongs to the technical field of toxic gas alarm and automatic control air supply and exhaust. According to the utility model, a point-type gas detector needs to be installed at a place where toxic gas needs to be detected in a roadway, a four-way controller is installed at a personnel on-duty place, and a sound-light alarm instrument is installed; when the toxic gas exceeds the standard, the four-way controller sends out an electric signal to trigger the acousto-optic alarm instrument to send out an acousto-optic alarm to remind an operator on duty that the toxic gas exceeds the standard; an electric signal is provided and transmitted to a control circuit of a heat supply fan controller for linkage, a heat supply fan power supply is cut off, a hot air inlet fan stops working, and toxic gas in hot air stops entering a roadway; and the electric signal is transmitted to a control circuit of the exhaust fan controller, a power supply of the exhaust fan is switched on, and the exhaust fan works to exhaust harmful gas in time. The device is easy to maintain, simple and convenient to operate and low in cost, reduces poisoning and suffocation risks of operators in the operation process, and ensures the operation safety of the operators.

Description

Technical Field

[0001] The utility model provides a device for hot air heating poisonous gas alarm and automatic control of air supply and exhaust, belonging to the technical field of poisonous gas alarm and automatic control of air supply and exhaust. Background Art

[0002] In the process of mining construction materials and mineral resources, toxic and harmful gases are generated by hot air heating in tunnels, the use of fuel machinery and equipment in shafts and tunnels, mining blasting, fires and geological reasons, which can cause suffocation and poisoning of workers, and combustible gases can explode when they reach their explosion limit, resulting in casualties, property and other economic losses. Summary of the invention

[0003] The purpose of the utility model is to solve the problems existing in the prior art and to provide a mine hot air heating poisonous gas alarm and automatic control supply and exhaust device.

[0004] The purpose of the utility model is achieved through the following technical solutions: a mine hot air heating poisonous gas alarm and automatic control supply and exhaust device, including: a carbon monoxide detector, a first detector signal line, a carbon dioxide detector, a second detector signal line, a four-way controller module, an audible and visual alarm signal line, an audible and visual alarm, a heating fan stop signal line, a heating fan stop module, a heating fan control output relay, an exhaust fan start signal line, an exhaust fan start module and an exhaust fan control output relay;

[0005] Among them, the carbon monoxide detector and the carbon dioxide detector are installed at fixed locations in the alley or workplace. The carbon monoxide detector is connected to the four-way controller module through the first detector signal line, and the carbon dioxide detector is connected to the four-way controller module through the second detector signal line. The four-way controller module is connected to the sound and light alarm through the sound and light alarm signal line. The heating fan stop signal line connects the four-way controller module and the heating fan stop module, and the heating fan stop module is connected to the heating fan control output relay through the line; the exhaust fan start signal line connects the four-way controller module and the exhaust fan start module, and the exhaust fan start module is connected to the exhaust fan control output relay through the line.

[0006] Furthermore, the four-way controller module, the heating fan stop module, the heating fan control output relay, the exhaust fan start module and the exhaust fan control output relay are placed in a control cabinet to facilitate daily maintenance.

[0007] Furthermore, the heating fan stop module receives the over-standard alarm signal from the four-way controller module through the heating fan stop signal line, so that the heating fan control output relay is actuated and closed; the normally closed contacts of the heating fan control output relay are connected in series in the heating fan electrical control circuit; after the heating fan stop module receives the signal from the four-way controller module, the heating fan control output relay is actuated, and the normally closed contacts are disconnected to disconnect the power supply of the heating fan control circuit. After the power supply of the heating fan control circuit is cut off, the main power contactor coil is de-energized and the contactor is released. After the main power is cut off, the heating fan stops working and stops supplying air to the alley.

[0008] Furthermore, the exhaust fan starting module receives the over-standard alarm signal retrieved by the four-way controller module through the exhaust fan starting signal line, so that the exhaust fan control output relay is actuated and closed, and the normally open contact of the exhaust fan control output relay is closed; the normally open contact of the exhaust fan control output relay is added to the exhaust fan control circuit, and the normally open contacts are connected in parallel on both sides of the start button in the exhaust fan control circuit. After the exhaust fan starting module receives the signal from the four-way controller module, the exhaust fan control output relay is actuated, the normally open contact is closed, the exhaust fan control circuit is energized, and the exhaust fan starts to work to discharge the toxic gases in the tunnel.

[0009] Furthermore, the carbon monoxide detector and the carbon dioxide detector may be replaced with a hydrogen sulfide detector and a methane detector depending on the location and the toxic and harmful gases they produce.

[0010] Furthermore, the four-way controller module can be replaced with a multi-channel controller according to the number of detectors required for the detection area or location.

[0011] Furthermore, the four-way controller module is externally provided with a 24V DC power supply.

[0012] Furthermore, the first detector signal line, the second detector signal line, the sound and light alarm signal line, the heating fan stop signal line and the exhaust fan start signal line use RVVP3*1.0m cables. 2 Three-core shielded cable.

[0013] Furthermore, the heating fan stop module, the heating fan control output relay, the exhaust fan start module and the exhaust fan control output relay transmit the toxic gas detection signal and control the heating fan and the exhaust fan to stop and run in a linked manner.

[0014] The beneficial effects of the utility model are:

[0015] The utility model can prevent mining enterprises from using coal-fired and oil-fired systems to supply hot air to tunnels and inclined shafts for heating through hot air exchange, and avoid poisonous smoke entering the heating tunnel space and causing poisoning and suffocation injuries to personnel due to furnace rupture during fuel combustion or inadequate daily maintenance and inspection of the coal-fired and oil-fired combustion systems.

[0016] The utility model is easy to maintain, simple to operate, and has low cost. During use, the risks of poisoning and suffocation of operators during operation are reduced, thereby ensuring the safety of operators during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a toxic gas alarm and automatic control air supply and exhaust device for hot air heating in a mine or tunnel.

[0018] Figure 2 This is a structural schematic diagram of Example 2 of a toxic gas alarm and automatic control air supply and exhaust device for hot air heating in a mine or tunnel according to the utility model.

[0019] The reference numerals in the figure are: 1 for carbon monoxide detector, 2 for the first detector signal line, 3 for carbon dioxide detector, 4 for the second detector signal line, 5 for four-way controller module, 6 for sound and light alarm signal line, 7 for sound and light alarm, 8 for heating fan stop signal line, 9 for heating fan stop module, 10 for heating fan control output relay, 11 for exhaust fan start signal line, 12 for exhaust fan start module, 13 for exhaust fan control output relay, 14 for hydrogen sulfide detector, and 15 for methane detector. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail below in conjunction with the accompanying drawings: This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method is given, but the protection scope of the utility model is not limited to the following embodiments.

[0021] like Figure 1 As shown, a mine hot air heating toxic gas alarm and automatic control air supply and exhaust device involved in this embodiment includes: a carbon monoxide detector 1, a first detector signal line 2, a carbon dioxide detector 3, a second detector signal line 4, a four-way controller module 5, an audible and visual alarm signal line 6, an audible and visual alarm 7, a heating fan stop signal line 8, a heating fan stop module 9, a heating fan control output relay 10, an exhaust fan start signal line 11, an exhaust fan start module 12 and an exhaust fan control output relay 13;

[0022] The heating fan control output relay 10 is arranged on the heating fan stop module 9 side; the exhaust fan control output relay 13 is arranged on the exhaust fan start module 12 side.

[0023] The four-way controller module 5, the heating fan stop module 9, the heating fan control output relay 10, the exhaust fan start module 12 and the exhaust fan control output relay 13 are installed on a main panel.

[0024] The normally closed contacts of the heating fan control output relay 10 are connected in series in the heating fan control circuit; after the heating fan stop module 9 receives the signal from the four-way controller module 5, the normally closed contacts of the heating fan control output relay 10 are disconnected. The normally closed contacts are disconnected to disconnect the heating fan control circuit power supply. After the heating fan control circuit power supply is cut off, the main power contactor coil is de-energized and the contactor is released. After the main power supply is cut off, the heating fan stops working and stops supplying air to the lane; the normally open contacts of the exhaust fan control output relay 13 are connected in parallel on both sides of the start button of the exhaust fan control circuit. After the exhaust fan start module 12 receives the signal from the four-way controller module 5, the exhaust fan control output relay 13 is actuated, the normally open contacts are closed, the exhaust fan control circuit is energized, and the exhaust fan starts working to discharge the toxic gases in the lane.

[0025] Among them: when one of the gas detectors carbon monoxide detector 1 and carbon dioxide detector 3 detects that the toxic gas exceeds the standard, the four-way controller module 5 receives the signal triggered by the first detector signal line 2 and the second detector signal line 4, and triggers the sound and light alarm 7 through the sound and light alarm signal line 6 to send out a sound and light alarm through the four-way controller module 5 terminal, reminding the staff on duty that the toxic gas in the working area exceeds the standard; at the same time, the heating fan stop module 9 is triggered through the heating fan stop signal line 8, and the heating fan stop module 9 stops the heating fan through the heating fan control output relay 10, and the toxic gas stops entering the working tunnel and place; if the toxic gas exceeds the standard, the four-way controller module 5 will trigger the exhaust fan start module 12 through the exhaust fan start signal line 11 with the retrieval signal, and the exhaust fan start module 12 starts the exhaust fan through the exhaust fan control output relay 13 to discharge the toxic gas in the tunnel, so as to ensure that the air in the workplace is clean and the personnel are working in a safe place.

[0026] The four-way controller module 5 uses an external 24V DC power supply.

[0027] The four-way controller module 5, the heating fan stop module 9, the heating fan control output relay 10, the exhaust fan start module 12 and the exhaust fan control output relay 13 are installed in the same control box. The four-way controller module 5, the heating fan control output relay 10 and the exhaust fan control output relay 13 have reserved wiring ports in the control box.

[0028] In practice, a multi-channel controller can be configured according to the number of detectors required in the detection area or place. The four-channel controller module 5 can be increased and replaced with a multi-channel controller as needed to complete the detection of more places or the external connection of linkage equipment, thereby realizing multi-point and multi-dimensional detection, alarm, and linkage.

[0029] Example 1

[0030] like Figure 1 As shown, in this embodiment, a mine hot air heating poisonous gas alarm and automatic control air supply and exhaust device is provided. The four-way controller module 5 receives the signals of the carbon monoxide detector 1 and the carbon dioxide detector 3, triggers the sound and light alarm 7 to work, and sends out sound and light alarm signals; at the same time, the heating fan control output relay 10 works to stop the heating fan; the exhaust fan control output relay 13 works to start the exhaust fan;

[0031] When the carbon monoxide detector 1 and the carbon dioxide detector 3 detect that the furnace of the oil-fired or coal-fired heating system is damaged and poisonous gases enter the tunnel work site and the carbon monoxide or carbon dioxide exceeds the standard, the carbon monoxide detector 1 and the carbon dioxide detector 3 transmit the signal to the four-way controller module 5 through the first detector signal line 2 and the second detector signal line 4.

[0032] First, the four-way controller module 5 transmits the retrieved signal to the sound and light alarm 7 through the sound and light alarm signal line 6, triggering the light alarm 7 to alarm, reminding the post personnel that the toxic gas in the working area exceeds the standard, and reminding the post employees to take relevant preventive measures;

[0033] Second, the four-way controller module 5 triggers the heating fan stop module 9 to work through the heating fan stop signal line 8 with the retrieved signal, and the heating fan stop module 9 stops the heating fan from working through the heating fan control output relay 10, and the toxic gas in the heating pipeline stops entering the lane area. The heating fan control output relay 10 has the function of stopping the heating fan, and stops the heating wind when the harmful gas exceeds the standard;

[0034] Third, the four-way controller module 5 triggers the exhaust fan starting module 12 to work through the exhaust fan starting signal line 11 with the retrieved signal, and the exhaust fan starting module 12 starts the exhaust fan through the exhaust fan control output relay 13 to extract the toxic gas in the tunnel and ensure the safety of the working area of ​​the mine and tunnel personnel.

[0035] In this embodiment: carbon monoxide detector or carbon dioxide detector model: GQ-DR600,

[0036] Four-way controller model: DR-ZX100A,

[0037] Sound and light alarm instrument model: FSG-103,

[0038] Control output relay model: AC220V / 5A.

[0039] Example 2

[0040] When toxic gases are generated in the mines and tunnels due to blasting, fire, or geological factors, toxic, flammable and explosive gases can be detected as needed. Specifically, hydrogen sulfide detectors, methane detectors and other flammable and explosive gases should be installed in explosion-proof devices, and the air supply and exhaust fans should be started at the same time to supply fresh air into the tunnels and exhaust harmful gases to ensure the safety of the workplace.

[0041] As described in Example 2 Figure 2 As shown, in this embodiment, a mine hot air heating toxic gas alarm and automatic control supply and exhaust device receives the hydrogen sulfide detector 14 and the methane detector 15 signals through the four-way controller module 5, and other harmful gas and dust detectors can also be used to trigger the sound and light alarm 7 to work and send out sound and light alarm signals; at the same time, the heating fan control output relay 10 works to make the heating fan work; the exhaust fan control output relay 13 works to start the exhaust fan;

[0042] When the hydrogen sulfide detector 14 and the methane detector 15 detect that the toxic gases such as hydrogen sulfide and methane exceed the standard, the hydrogen sulfide detector 1 and the nitrogen oxide detector 3 transmit the signal to the four-way controller module 5 through the first detector signal line 2 and the second detector signal line 4:

[0043] First, the four-way controller module 5 transmits the retrieved signal to the sound and light alarm 6 through the sound and light alarm signal line 6, triggering the light alarm 6 to alarm, reminding the post personnel that there is excessive toxic and explosive gas in the working area, and reminding the post employees to take relevant preventive measures;

[0044] Second, the four-way controller module 5 triggers the heating fan stop module 9 through the heating fan stop signal line 8 with the retrieved signal, and the heating fan stop module 9 is actuated, and the heating fan control output relay 10 works, and the normally open contact of the heating fan control output relay 10 is closed, and its normally open contact is connected in parallel on both sides of the heating fan control circuit start button, so that the fresh air ventilator works, and the clean air source enters the working area of ​​the shaft and tunnel personnel, diluting the explosive and harmful gases, so that the explosive and harmful gases do not reach the explosion limit. The normally open contacts of the heating fan control output relay 10 are connected in parallel on both sides of the fresh air ventilator control power button.

[0045] Third, the four-way controller module 5 triggers the exhaust fan starting module 12 with the retrieved signal through the exhaust fan starting signal line 11, and the exhaust fan starting module 12 outputs a signal to start the exhaust fan through the exhaust fan control output relay 13 to extract harmful gases from the tunnel and ensure the safety of the working area of ​​the mine and tunnel personnel.

[0046] The model of hydrogen sulfide detector in this embodiment is: GD-STC10;

[0047] Methane detector model: Aix GT-GND20;

[0048] Four-way controller model: DR-ZX100A;

[0049] Sound and light alarm instrument model: FSG-103;

[0050] Control output relay model: AC220V / 5A;

[0051] During use, if the toxic or explosive gas exceeds the standard, the four-way controller module 5 will trigger the sound and light alarm 7 through the sound and light alarm signal line 6 to send out a sound and light alarm to remind the personnel on duty that the toxic gas in the working area exceeds the standard; at the same time, the heating fan stop module 9 is triggered through the heating fan stop signal line 8, and the heating fan stop module 9 works, and the heating fan is started through the heating fan control output relay 10 to deliver fresh air to the shaft and tunnel working site; if the harmful gas exceeds the standard, the four-way controller module 5 will trigger the exhaust fan start module 12 through the exhaust fan start signal line 11 through the retrieval signal, and the exhaust fan start module 12 works, and the exhaust fan control output relay 13 is used to start the exhaust fan to discharge the toxic gas in the tunnel working site in time.

[0052] The above are only preferred specific embodiments of the present invention. These specific embodiments are different implementations based on the overall concept of the present invention, and the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A hot air heating poisonous gas alarm and automatic control air supply and exhaust device for wells and tunnels, characterized in that: include: A carbon monoxide detector (1), a first detector signal line (2), a carbon dioxide detector (3), a second detector signal line (4), a four-way controller module (5), an audible and visual alarm signal line (6), an audible and visual alarm (7), a heating fan stop signal line (8), a heating fan stop module (9), a heating fan control output relay (10), an exhaust fan start signal line (11), an exhaust fan start module (12) and an exhaust fan control output relay (13); The carbon monoxide detector (1) and the carbon dioxide detector (3) are installed at a fixed location in a lane or workplace. The carbon monoxide detector (1) is connected to a four-way controller module (5) via a first detector signal line (2), and the carbon dioxide detector (3) is connected to a four-way controller module (5) via a second detector signal line (4). The four-way controller module (5) is connected to an audible and visual alarm (7) via an audible and visual alarm signal line (6). A heating fan stop signal line (8) connects the four-way controller module (5) to a heating fan stop module (9), and the heating fan stop module (9) is connected to a heating fan control output relay (10) via a line. An exhaust fan start signal line (11) connects the four-way controller module (5) to an exhaust fan start module (12), and the exhaust fan start module (12) is connected to an exhaust fan control output relay (13) via a line.

2. According to claim 1, a hot air heating poisonous gas alarm and automatic control air supply and exhaust device for wells and tunnels, characterized in that: The four-way controller module (5), the heating fan stop module (9), the heating fan control output relay (10), the exhaust fan start module (12) and the exhaust fan control output relay (13) are placed in a control cabinet for easy daily maintenance.

3. According to claim 1, a hot air heating poisonous gas alarm and automatic control air supply and exhaust device for wells and tunnels, characterized in that: The heating fan stop module (9) receives the over-standard alarm signal retrieved from the four-way controller module (5) through the heating fan stop signal line (8), so that the heating fan control output relay (10) is activated and closed; the normally closed contact of the heating fan control output relay (10) is connected in series in the heating fan electrical control circuit; after the heating fan stop module (9) receives the signal from the four-way controller module (5), the heating fan control output relay (10) is activated, and the normally closed contact is disconnected to disconnect the power supply of the heating fan control circuit. After the power supply of the heating fan control circuit is cut off, the main power contactor coil is de-energized, and the contactor is released. After the main power is cut off, the heating fan stops working and stops supplying air to the lane.

4. According to claim 2, a hot air heating poisonous gas alarm and automatic control air supply and exhaust device for wells and tunnels, characterized in that: The exhaust fan start module (12) receives the over-standard alarm signal retrieved by the four-way controller module (5) through the exhaust fan start signal line (11), so that the exhaust fan control output relay (13) is actuated and closed, and the normally open contact of the exhaust fan control output relay (13) is closed; the normally open contact of the exhaust fan control output relay (13) is added to the exhaust fan control circuit, and the normally open contact is connected in parallel to both sides of the start button in the exhaust fan control circuit. After the exhaust fan start module (12) receives the signal from the four-way controller module (5), the exhaust fan control output relay (13) is actuated, the normally open contact is closed, the exhaust fan control circuit is energized, and the exhaust fan starts to work to discharge the toxic gas in the tunnel.

5. A hot air heating poisonous gas alarm and automatic control air supply and exhaust device for wells and tunnels according to claim 1, characterized in that: The carbon monoxide detector (1) and the carbon dioxide detector (3) can be replaced with a hydrogen sulfide detector (14) and a methane detector (15) according to different locations and the toxic and harmful gases they produce.

6. A hot air heating poisonous gas alarm and automatic control air supply and exhaust device for wells and tunnels according to claim 1, characterized in that: The four-way controller module (5) can be replaced with a multi-channel controller according to the number of detectors required for the detection area or location.

7. A hot air heating poisonous gas alarm and automatic control air supply and exhaust device for wells and tunnels according to claim 1, characterized in that: The four-way controller module (5) is externally provided with a 24V DC power supply.

8. The device for hot air heating poisonous gas alarm and automatic control of air supply and exhaust for mine tunnels according to claim 1 is characterized in that: The first detector signal line (2), the second detector signal line (4), the sound and light alarm signal line (6), the heating fan stop signal line (8) and the exhaust fan start signal line (11) use RVVP3*1.0m cables. 2 Three-core shielded cable.

9. A hot air heating poisonous gas alarm and automatic control air supply and exhaust device for wells and tunnels according to claim 1, characterized in that: The heating fan stop module (9), the heating fan control output relay (10), the exhaust fan start module (12) and the exhaust fan control output relay (13) transmit poisonous gas detection signals and control the heating fan and the exhaust fan to stop and run in a linked manner.

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