Poisonous gas detection simulation and exhaust device based on underground goaf

Abstract

The utility model relates to a toxic gas detection simulation and exhaust device based on an underground goaf. The device comprises a detection simulation assembly and an exhaust assembly which are connected, and is structurally characterized in that the detection simulation assembly comprises a detection simulation host, a four-in-one gas detector and an audible and visual alarm, and the exhaust assembly comprises an exhaust fan and an exhaust pipe. The four-in-one gas detector, the audible and visual alarm and the exhaust fan are all in circuit connection with the detection simulation host, the exhaust fan is in pipeline connection with one end of the exhaust pipe, and the detection simulation host is provided with a host cover plate used for shielding the button. The detection simulation host comprises a main control board, a contactor, a change-over switch, an inverter, a battery, an ampere meter, a red button, a green button and a female interface, the contactor, the battery, the ampere meter, the red button, the green button and the female interface are all connected with the main control board, the change-over switch is respectively connected with the inverter and AC220V, and the inverter is connected with the battery.

Description

Technical Field

[0001] The utility model relates to a simulation device for detecting toxic gases in underground voids and an exhaust device, which are mainly used for exhausting waste gas and toxic gas in underground manholes and underground mines. Background Technique

[0002] According to the construction requirements of confined spaces, when power construction units operate in confined spaces, they need to "ventilate first and then operate" to ensure personal safety. In the prior art, only exhaust operations can be carried out in confined spaces, but toxic gases in confined spaces cannot be detected. When exhausting, the exhaust fan is a directly plug-and-use exhaust fan for exhausting, or there is a portable self-powered exhaust device for exhausting, and the start and stop of the exhaust fan cannot be controlled by detecting the concentration of toxic gases in the confined space. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art, and provide a simulation device for detecting toxic gases in underground voids and an exhaust device with reasonable structural design, which can achieve real-time monitoring and air supply and exhaust in confined space operations to ensure the personal safety of staff.

[0004] The simulation device for detecting toxic gases in underground voids and the exhaust device of the utility model include a detection and simulation component and an exhaust component. The detection and simulation component is connected to the exhaust component. Its structural characteristics are as follows: the detection and simulation component includes a detection and simulation host, a four-in-one gas detector and an audible and visual alarm. The exhaust component includes an exhaust fan and an exhaust duct. The four-in-one gas detector, the audible and visual alarm and the exhaust fan are all electrically connected to the detection and simulation host. The exhaust fan is connected to one end of the exhaust duct through a pipeline.

[0005] Further, the detection and simulation host is equipped with a host cover plate for covering the buttons.

[0006] Further, the detection and simulation host includes a main control board, a contactor, a change-over switch, an inverter, a battery, an ammeter, a red button, a green button and a female interface. The contactor, the battery, the ammeter, the red button, the green button and the female interface are all connected to the main control board. The change-over switch is respectively connected to the inverter and AC220V. The inverter is connected to the battery.

[0007] Further, the protection board of the battery is connected to the main control board.

[0008] Further, there are two female interfaces. One of the female interfaces is connected to the male interface of the four-in-one gas detector, and the other female interface is connected to the male interface of the audible and visual alarm.

[0009] Further, the exhaust fan is connected to the contactor.

[0010] Further, the inverter is connected to the battery through a 1P air switch.

[0011] Further, the change-over switch is connected to the inverter through a DC system switch.

[0012] Further, the change-over switch is connected to the AC220V through an AC system switch.

[0013] Further, one ends of the four-in-one gas detector and the exhaust duct are both located in the underground manhole.

[0014] Compared with the prior art, the utility model has the following advantages: the underground void toxic gas detection simulation and exhaust device can sample and analyze the gas in limited spaces such as underground manholes and cable wells, monitor in real time, and detect in real time to ensure that the gas quality in the limited space meets the standards before operation; the exhaust component is used in combination with the detection simulation component to effectively supply and exhaust air to the working site in the limited space, send in healthy and safe air or discharge harmful gases, and ensure the safety of the operation environment.

[0015] The underground void toxic gas detection simulation and exhaust device is a set of system devices for gas real-time monitoring and exhaust. The detection simulation component can control the exhaust component while monitoring the limited space environment in real time, and select whether to turn on the exhaust component for operation according to whether the gas quality meets the standards. At the same time, the device can also be expanded in other projects, has a mobile power function, and has an ups adaptive function, enabling seamless switching between mains power and built-in power supply, and working in a two-choice mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the underground void toxic gas detection simulation and exhaust device according to an embodiment of the utility model.

[0017] Figure 2 is a schematic structural diagram of the underground void toxic gas detection simulation and exhaust device according to an embodiment of the utility model.

[0018] Figure 3 is a schematic circuit connection diagram of the detection simulation host according to an embodiment of the utility model.

[0019] In the figure: detection simulation component 1, exhaust component 2, underground manhole 3,

[0020] detection simulation host 11, four-in-one gas detector 12, audible and visual alarm 13, host cover plate 14,

[0021] exhaust fan 21, exhaust duct 22,

[0022] Main control board 111, contactor 112, change-over switch 113, inverter 114, battery 115, ammeter 116, red button 117, green button 118, female interface 119, protection board 120,

[0023] DC system switch K1, AC system switch K2. Specific implementation mode

[0024] The present utility model will be further described in detail below in conjunction with the accompanying drawings and through embodiments. The following embodiments are explanations of the present utility model, and the present utility model is not limited to the following embodiments.

[0025] Embodiment

[0026] See Figures 1 to 3 As shown, it should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions under which the present utility model can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope under which the present utility model can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0027] The toxic gas detection simulation and exhaust device based on underground voids in this embodiment includes a detection simulation component 1 and an exhaust component 2. The detection simulation component 1 is connected to the exhaust component 2. The detection simulation component 1 includes a detection simulation host 11, a four-in-one gas detector 12, and an audible and visual alarm 13. The detection simulation host 11 is equipped with a host cover plate 14 for covering the buttons. The exhaust component 2 includes an exhaust fan 21 and an exhaust duct 22. The four-in-one gas detector 12, the audible and visual alarm 13, and the exhaust fan 21 are all electrically connected to the detection simulation host 11. The exhaust fan 21 is connected to one end of the exhaust duct 22 through a pipeline. One end of the four-in-one gas detector 12 and one end of the exhaust duct 22 are both located in the underground manhole 3.

[0028] The detection simulation host 11 in this embodiment includes a main control board 111, a contactor 112, a changeover switch 113, an inverter 114, a battery 115, an ammeter 116, a red button 117, a green button 118, and a female interface 119. The contactor 112, the battery 115, the ammeter 116, the red button 117, the green button 118, and the female interface 119 are all connected to the main control board 111. The protection board 120 of the battery 115 is connected to the main control board 111. The changeover switch 113 is connected to the inverter 114 through a DC system switch K1, and the changeover switch 113 is connected to AC220V through an AC system switch K2. The inverter 114 is connected to the battery 115 through a 1P breaker. The model of the main control board 111 is DZXY123 - A, and the manufacturer is Guangzhou Longge Electronic Technology Co., Ltd.

[0029] There are two female interfaces 119 in this embodiment. One of the female interfaces 119 is connected to the male interface of the four - in - one gas detector 12, and the other female interface 119 is connected to the male interface of the audible and visual alarm 13. The exhaust fan 21 is connected to the contactor 112.

[0030] The working method of the underground goaf toxic gas detection simulation and exhaust device in this embodiment is as follows: The four - in - one gas detector 12 can detect the gas concentration in the confined space in real time. When it monitors that the gas in the confined space does not meet the standard, the four - in - one gas detector 12 will send a signal to the detection simulation host 11. The detection simulation host 11 controls the audible and visual alarm 13 to emit an alarm sound, and at the same time, the exhaust fan 21 starts and stops until the gas meets the standard; in addition, the audible and visual alarm 13 can temporarily cancel the audible and visual alarm signal through the reset button on the industrial control screen. However, if the gas does not meet the standard, after a period of time, the alarm signal will be sent again. If you want to cancel it, you need to manually reset it again. The audible and visual alarm information cannot be cancelled until the gas in the confined space meets the standard, that is, it will stop automatically.

[0031] The underground goaf toxic gas detection simulation and exhaust device can be powered by the on - site mains power supply or the device's own power supply. The device has an ups automatic switching function. When using both power supply methods at the same time, the device will preferentially use the mains power supply to save the power of the built - in power supply. When the mains power is disconnected, the device automatically switches to the built - in power supply.

[0032] When starting up under mains power supply, you need to first connect the power cord to the interface of "AC220V input" and turn on the "AC system switch" button to start up; when starting up under the built - in power supply, first close the "power switch" breaker, wait for five seconds, and then turn on the "DC system switch" button to start up.

[0033] After startup, the "Start Blower" and "Stop Blower" buttons on the main screen can be pressed to control the on / off of the current of the "Exhaust Blower Interface", thereby starting and stopping the blower. The two physical buttons under the main screen are equivalent to the "Start Blower" and "Stop Blower" buttons on the industrial control screen. The above-mentioned "Start Blower" and "Stop Blower" buttons are in manual mode. When in use, the exhaust blower can work continuously. If the "automatic mode" is selected, the blower can be controlled to work intermittently. For example, it works for 1 hour, pauses for 15 minutes and then starts timing again. The working frequency can be adjusted by logging in to the account.

[0034] The mobile power supply part provides an emergency power supply function for the device, which can temporarily supply power to on-site electrical appliances. The recommended maximum power consumption is no more than 800w.

[0035] The system device is internally designed with a memory card, which can record work logs. Abnormal work will be specially recorded for easy information access.

[0036] The preparation work is as follows:

[0037] 1. Place the underground goaf toxic gas detection simulation and exhaust device at the working location, lift the upper cover of the device, and remove the front cover of the device.

[0038] 2. Open the accessory box, take out the four-in-one gas detector, and connect it to the gas detector interface under the industrial control screen using the connection cable; connect the audible and visual alarm light to the audible and visual alarm light interface under the industrial control screen. Then, adsorb the audible and visual alarm light at a suitable position beside the industrial control screen, and send the four-in-one gas detector into the confined space working environment.

[0039] 3. Connect the plug of the exhaust device to the exhaust blower interface under the industrial control screen, and send the air duct of the exhaust device into the confined space working environment.

[0040] 4. Use the grounding wire to ground the intelligent device for safe construction in the confined space.

[0041] In addition, it should be noted that for the specific embodiments described in this specification, the shapes and names of the zero and components can be different. The above content described in this specification is only an example of the structure of the present invention. Any equivalent changes or simple changes made according to the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Those skilled in the art of the present invention can make various modifications, supplements or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the present invention or exceed the scope defined by this claim book, they should fall within the protection scope of the present invention.

Claims

1. A toxic gas detection simulation and exhaust device based on underground voids, comprising a detection simulation component (1) and an exhaust component (2), the detection simulation component (1) being connected to the exhaust component (2), characterized in that: The detection simulation component (1) includes a detection simulation host (11), a four-in-one gas detector (12), and an audible and visual alarm (13). The exhaust component (2) includes an exhaust fan (21) and an exhaust duct (22). The four-in-one gas detector (12), the audible and visual alarm (13), and the exhaust fan (21) are all electrically connected to the detection simulation host (11). The exhaust fan (21) is connected to one end of the exhaust duct (22) through a pipe.

2. The underground goaf toxic gas detection simulation and exhaust device according to claim 1, characterized in that: The detection simulation host (11) is equipped with a host cover plate (14) for covering the buttons.

3. The underground goaf toxic gas detection simulation and exhaust device according to claim 1, characterized in that: The detection simulation host (11) includes a main control board (111), a contactor (112), a changeover switch (113), an inverter (114), a battery (115), an ammeter (116), a red button (117), a green button (118), and a female interface (119). The contactor (112), the battery (115), the ammeter (116), the red button (117), the green button (118), and the female interface (119) are all connected to the main control board (111). The changeover switch (113) is respectively connected to the inverter (114) and AC220V. The inverter (114) is connected to the battery (115).

4. The underground goaf toxic gas detection simulation and exhaust device according to claim 3, wherein: The protection board (120) of the battery (115) is connected to the main control board (111).

5. The underground goaf toxic gas detection simulation and exhaust device according to claim 3, characterized in that: Two of the female interfaces (119). One of the female interfaces (119) is connected to the male interface of the four-in-one gas detector (12), and the other female interface (119) is connected to the male interface of the audible and visual alarm (13).

6. The underground goaf toxic gas detection simulation and exhaust device according to claim 3, wherein: The exhaust fan (21) is connected to the contactor (112).

7. The underground goaf toxic gas detection simulation and exhaust device according to claim 3, characterized in that: The inverter (114) and the battery (115) are connected through a 1P air switch.

8. The underground goaf toxic gas detection simulation and exhaust device according to claim 3, wherein: The changeover switch (113) and the inverter (114) are connected through a DC system switch (K1).

9. The underground void toxic gas detection simulation and exhaust device according to claim 3, characterized in that: The changeover switch (113) and AC220V are connected through an AC system switch (K2).

10. The underground void toxic gas detection simulation and exhaust device according to claim 1, characterized in that: One end of the four-in-one gas detector (12) and the exhaust duct (22) are both located in the underground manhole (3).

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