Indoor natural gas leakage early warning pumping drainage system

Abstract

The utility model relates to the technical field of natural gas leakage detection, and discloses an indoor natural gas leakage early warning pumping and discharging system which comprises a control box, an exhaust fan and a stop valve installed on a natural gas pipeline, a single-chip microcomputer is arranged on the left side in the control box, and a DC power supply conversion module is arranged on the right side of the bottom in the control box. A methane sensor is arranged on the front side of the control box, an alarm lamp is arranged on the right portion of the front side of the control box, a WiFi module is arranged at the bottom of the front side of the control box, and a buzzer is arranged on the front side of the control box. According to the utility model, when indoor natural gas leaks and the methane sensor detects first-level and second-level alarm concentrations, the single-chip microcomputer controls the buzzer to give out sound of a corresponding level and the alarm lamp to flicker in different colors, and the WiFi module sends an alarm short message to an owner, so that the leakage condition can be quickly known even if the owner is not on site; and the exhaust fan adjusts the rotating speed for efficient exhaust according to the detected methane concentration, so that the risk caused by gas leakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas leakage detection, in particular to an indoor natural gas leakage early warning and extraction system. Background Art

[0002] In today's society, home safety is increasingly valued, especially regarding the common gas leak problem in homes. Methane is the main component of household gas, and its leakage not only threatens the safety of the living environment, but may also cause serious casualties and property losses. Therefore, it is particularly important to develop a system that can effectively monitor and respond to methane leaks in a timely manner.

[0003] Existing natural gas leak response equipment has a single function and cannot effectively deal with natural gas leaks when no one is at home or when the shut-off valve fails. In the event of a natural gas leak, a quick response is crucial, but the installation of traditional exhaust fans and other related equipment is often cumbersome, requiring multiple tools and a long time to fix each component, which greatly reduces its installation efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the existing technology that the natural gas leakage response equipment has a single function and cannot effectively deal with the natural gas leakage problem when no one is at home or the shut-off valve fails, and to propose an indoor natural gas leakage early warning and extraction system.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an indoor natural gas leak early warning and extraction system, comprising a control box, an exhaust fan and a shut-off valve installed on a natural gas pipeline, a power supply is arranged on the inner rear side of the control box, a single-chip microcomputer is arranged on the inner left side of the control box, a relay is arranged on the inner bottom of the control box, a DC power conversion module is arranged on the inner bottom right side of the control box, a methane sensor is arranged on the front side of the control box, an alarm light is arranged on the front right part of the control box, a WiFi module is arranged on the front bottom of the control box, a buzzer is arranged on the front side of the control box, a support base is fixedly connected to the bottom of the exhaust fan, mounting blocks are fixedly connected to the four external corners of the support base, a mounting base is arranged on the bottom of the support base, through-hole mounting feet are fixedly connected to the four external corners of the mounting base, and a mounting assembly is arranged on the upper part of the through-hole mounting feet.

[0006] As a further description of the above technical solution:

[0007] The installation assembly comprises an elastic rubber foot, the upper part of the elastic rubber foot is fixedly connected with a plug strip, the upper two sides of the plug strip are rotatably connected with a limiting piece, and the top of the limiting piece is fixedly connected with a cross handle.

[0008] As a further description of the above technical solution:

[0009] The single chip microcomputer is electrically connected to the alarm light, buzzer, exhaust fan, relay, power supply, WiFi module and methane sensor respectively.

[0010] As a further description of the above technical solution:

[0011] The relay is electrically connected to the cut-off valve and the DC power conversion module respectively.

[0012] As a further description of the above technical solution:

[0013] The power supply is electrically connected to the DC power conversion module.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, when there is a natural gas leak indoors, when the methane sensor detects the first or second level alarm concentration, the single chip will control the buzzer to emit a sound of the corresponding level and the alarm light to flash different colors, reminding people indoors and outdoors to promptly identify the leakage level and take measures. At the same time, the WiFi module sends an alarm text message to the owner to ensure that the leakage situation can be quickly known even if not on site. In addition, once the methane concentration exceeds the standard, the shut-off valve will automatically close to cut off the gas source to prevent the situation from escalating. The exhaust fan adjusts the speed according to the detected methane concentration to exhaust efficiently, preventing the indoor gas concentration from reaching the explosion limit, greatly enhancing residential safety and reducing the risks caused by gas leaks.

[0016] 2. In the utility model, when the exhaust fan needs to be installed, the external bolts are passed through the through-hole mounting feet to fix the mounting base on the window, and the mounting block is plugged into the outer wall of the plug-in strip, and the cross handle is then rotated to drive the limit piece to move to the top of the mounting block, thereby completing the installation of the exhaust fan. Conversely, the cross handle is rotated to move the limit piece out from the top of the mounting block, and then the support base is pulled upward to complete the disassembly of the exhaust fan. The exhaust fan can be installed and disassembled quickly, which reduces the time required for the entire installation or disassembly process, so that the exhaust fan can be quickly put into use or removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the indoor natural gas leak early warning and extraction system proposed by the utility model;

[0018] Figure 2 A cross-sectional view of a control box of the indoor natural gas leak early warning and extraction system proposed by the utility model;

[0019] Figure 3 This is a structural schematic diagram of the support base of the indoor natural gas leakage early warning and extraction system proposed by the utility model;

[0020] Figure 4 This is a structural schematic diagram of the plug-in strip of the indoor natural gas leakage early warning and extraction system proposed by the utility model;

[0021] Figure 5 This is the system control diagram of the indoor natural gas leak early warning and extraction system proposed by the utility model.

[0022] Legend:

[0023] 1. Control box; 2. Methane sensor; 3. Shut-off valve; 4. Buzzer; 5. Warning light; 6. Exhaust fan; 7. Support base; 8. Mounting base; 9. Mounting block; 10. Through-hole mounting foot; 11. Power supply; 12. Single-chip microcomputer; 13. Relay; 14. WiFi module; 15. Through slot; 16. Plug strip; 17. Cross handle; 18. Limiting piece; 19. Elastic rubber foot; 20. DC power conversion module. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1 , Figure 2 and Figure 5 The utility model provides an embodiment: an indoor natural gas leakage early warning and exhaust system, comprising a control box 1, an exhaust fan 6 and a shut-off valve 3 installed on a natural gas pipeline, a power supply 11 is arranged on the inner rear side of the control box 1, a single-chip computer 12 is arranged on the inner left side of the control box 1, a relay 13 is arranged on the inner bottom of the control box 1, a DC power conversion module 20 is arranged on the inner bottom right side of the control box 1, a methane sensor 2 is arranged on the front side of the control box 1, an alarm light 5 is arranged on the front right side of the control box 1, a WiFi module 14 is arranged on the front bottom of the control box 1, a buzzer 4 is arranged on the front side of the control box 1, a support base 7 is fixedly connected to the bottom of the exhaust fan 6, and mounting blocks 9 are fixedly connected to the four external corners of the support base 7, a mounting base 8 is arranged on the bottom of the support base 7, and through-hole mounting feet 10 are fixedly connected to the four external corners of the mounting base 8, and a mounting component is arranged on the upper part of the through-hole mounting feet 10. The single chip computer 12 is electrically connected to the alarm light 5, the buzzer 4, the exhaust fan 6, the relay 13, the power supply 11, the WiFi module 14, and the methane sensor 2 respectively; the relay 13 is electrically connected to the cut-off valve 3 and the DC power conversion module 20 respectively; the power supply 11 is electrically connected to the DC power conversion module 20; and the cut-off valve 3 is installed on the natural gas pipeline.

[0026] Through signal transmission and control between methane sensor 2, single chip microcomputer 12, and buzzer 4. When methane sensor 2 identifies the first and second level alarm concentrations, buzzer 4 will emit a first and second level sound to alarm, and indoor residents and surrounding neighbors will preliminarily determine the leakage level based on the different sounds, so as to take countermeasures or escape. Through signal transmission and control between methane sensor 2, single chip microcomputer 12, and alarm light 5. When methane sensor 2 identifies the first and second level alarm concentrations, alarm light 5 will flash lights of different colors to alarm, and indoor owners and outdoor personnel at night can judge the indoor leakage situation based on the alarm color, so as to take countermeasures or escape. Through signal transmission and control between methane sensor 2, single chip microcomputer 12, and WiFi module 14. When methane sensor 2 identifies the first and second level alarm concentrations, WiFi module 14 will send a first and second level alarm SMS to the owner's mobile phone. Even if the owner is not at home, he can receive information about gas leakage at home in the first time, and can take emergency measures according to different levels. Through signal transmission and control between methane sensor 2, single chip microcomputer 12, and cut-off valve 3. When the methane concentration exceeds the warning value, the shut-off valve 3 will be cut off immediately and can only be opened manually. If the leakage source is behind the shut-off valve, the leakage source will be cut off, thereby effectively preventing the indoor gas concentration from continuing to increase. When it is manually confirmed that the leakage source has been repaired and the room is safe, the shut-off valve is manually opened to avoid secondary leakage.

[0027] Reference Figure 1 , Figure 3 and Figure 4 The mounting assembly includes an elastic rubber foot 19, the upper part of which is fixedly connected to a plug strip 16, the upper two sides of which are rotatably connected to limit members 18, and the top of the limit member 18 is fixedly connected to a cross handle 17. A through slot 15 is provided in the middle of the mounting block 9, and the outer wall of the plug strip 16 is movably connected to the inner wall of the through slot 15.

[0028] During use, when the exhaust fan 6 needs to be installed, the external bolt is passed through the through-hole mounting foot 22 to fix the mounting base 8 on the window, and the mounting block 9 is plugged into the outer wall of the plug-in strip 16. The cross handle 17 is then rotated to drive the limiting member 18 to move to the top of the mounting block 9, and the installation of the exhaust fan 6 is completed. Conversely, the cross handle 17 is rotated to move the limiting member 18 out from the top of the mounting block 9, and then the support base 7 is pulled upward to complete the disassembly of the exhaust fan 6. The ability to quickly complete the installation and disassembly of the exhaust fan 6 reduces the time required for the entire installation or disassembly process, so that the exhaust fan can be quickly put into use or removed.

[0029] Working principle: When the device is in use, first pass the external bolt through the through-hole mounting foot 10, then fix the mounting seat 8 on the window, plug the mounting block 9 into the outer wall of the plug-in strip 16, and then rotate the cross handle 17 to drive the limiter 18 to move to the top of the mounting block 9, thus completing the installation of the exhaust fan 6. Conversely, rotate the cross handle 17 to move the limiter 18 out from the top of the mounting block 9, and then pull the support seat 7 upward to complete the disassembly of the exhaust fan 6. The ability to quickly complete the installation and disassembly of the exhaust fan 6 reduces the time required for the entire installation or disassembly process, so that the exhaust fan can be quickly put into use or removed. When indoor natural gas leaks, when the methane sensor 2 detects the first or second level alarm concentration, the single-chip microcomputer 12 will control the buzzer 4 to emit a sound of the corresponding level and the alarm light 5 to flash different colors, reminding indoor and outdoor personnel to promptly identify the leakage level and take measures. At the same time, the WiFi module 14 sends an alarm SMS to the owner to ensure that the leakage situation can be quickly known even if not on site. In addition, once the methane concentration exceeds the standard, the shut-off valve will automatically close to cut off the gas source to prevent the situation from escalating. The exhaust fan 6 adjusts the speed according to the detected methane concentration to exhaust efficiently, preventing the indoor gas concentration from reaching the explosion limit, greatly enhancing residential safety and reducing the risk caused by gas leakage.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An indoor natural gas leakage early warning and exhaust system, comprising a control box (1), an exhaust fan (6) and a shut-off valve (3) installed on a natural gas pipeline, characterized in that: A power supply (11) is arranged at the rear side of the control box (1), a single-chip computer (12) is arranged at the left side of the control box (1), a relay (13) is arranged at the bottom of the control box (1), a DC power conversion module (20) is arranged at the right side of the bottom of the control box (1), a methane sensor (2) is arranged at the front side of the control box (1), an alarm light (5) is arranged at the right side of the front side of the control box (1), a WiFi module (14) is arranged at the bottom of the front side of the control box (1), a buzzer (4) is arranged at the front side of the control box (1), a support base (7) is fixedly connected to the bottom of the exhaust fan (6), the four external corners of the support base (7) are fixedly connected to mounting blocks (9), a mounting base (8) is arranged at the bottom of the support base (7), the four external corners of the mounting base (8) are fixedly connected to through-hole mounting feet (10), and a mounting component is arranged on the upper part of the through-hole mounting feet (10).

2. The indoor natural gas leakage early warning and extraction system according to claim 1 is characterized in that: The mounting assembly comprises an elastic rubber foot (19), the upper part of the elastic rubber foot (19) is fixedly connected to a plug-in strip (16), both sides of the upper part of the plug-in strip (16) are rotatably connected to a limiting member (18), and the top of the limiting member (18) is fixedly connected to a cross handle (17).

3. The indoor natural gas leakage early warning and extraction system according to claim 2 is characterized in that: A through slot (15) is provided in the middle of the installation block (9), and the outer wall of the plug-in strip (16) is movably connected to the inner wall of the through slot (15).

4. The indoor natural gas leakage early warning and extraction system according to claim 1 is characterized in that: The single chip computer (12) is electrically connected to the warning light (5), the buzzer (4), the exhaust fan (6), the relay (13), the power supply (11), the WiFi module (14), and the methane sensor (2) respectively.

5. The indoor natural gas leakage early warning and extraction system according to claim 1 is characterized in that: The relay (13) is electrically connected to the cut-off valve (3) and the DC power conversion module (20) respectively.

6. The indoor natural gas leakage early warning and extraction system according to claim 1 is characterized in that: The power source (11) is electrically connected to the DC power conversion module (20).

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